Cooling and de-dusting of hot particulate material particularly calcined petroleum coke
阅读：668发布：2022-06-13
专利汇可以提供Cooling and de-dusting of hot particulate material particularly calcined petroleum coke专利检索，专利查询，专利分析的服务。并且A method and apparatus for cooling and, preferably also, simultaneously de-dusting a hot particulate material, such as calcined petroleum coke, containing a substantial percentage of fines are described. The cooling and de-dusting operations are highly efficient and are carried out by modification of conventional rotary cooler apparatuses presently being used by industry for cooling various particulate materials such as calcined petroleum coke. The conventional cooler is preferably modified by installing therein at least one tumbling section or zone wherein the interior of the cooler is subdivided into a plurality of longitudinal compartments, which impart to the particulate material a high degree of tumbling free-fall action. In a less preferred embodiment, no such tumbling section is used or added to the cooler. In any case, central, non-rotating conduit means are included in the modification(s) made to the cooler to provide for the placement of one or more thermocouples within the cooler and also the conduction of fluids (such as water) to the interior of the cooler. In the preferred embodiment having at least one tumbling section, the cooler is also preferably provided with auxiliary equipment which supplies a de-dusting agent within same, said equipment or means, in conjunction with the tumbling section or zone of longitudinal compartments being capable of finely, and very efficiently, dispersing the de-dusting agent, such as an oil, upon the particulate material while the material is being cooled and subjected to tumbling free-fall action in the cooler.，下面是Cooling and de-dusting of hot particulate material particularly calcined petroleum coke专利的具体信息内容。
1. A METHOD OF COOLING A HOT PARTICULATE MATERIAL WHICH COMPRISES THE FOLLOWING STEPS: A. INTRODUCING THE PARTICULATE MATERIAL INTO AN INITIAL ZONE OF A SLIGHTLY INCLINED CONTINUOUSLY ROTATING, CYLINDRICAL ROTARY COOLER WHICH IS OF SUBSTANTIAL LENGTH AND CROSS-SECTIONAL AREA, B. SPRAYING WATER ONTO THE MATERIAL IS AN ENTRY PORTION OF THE INITIAL ZONE OF THE ROTARY COOLER, THEREBY SUBSTANTIALLY COOLING SAID MATERIAL, C. FURTHER COOLING SAID MOISTENED PARTICULATE MATERIAL BY CONTINUOUSLY INTRODCING IT INTO A FOLLOWING PORTION OF THE INITIAL COOLING ZONE IN SAID COOLER, SAID FOLLOWING PORTION OF THE INITIAL COOLING ZONE BEING OF SUFFICIENT LENGTH THAT SUBSTANTIAL ADDITIONAL COOLING OF THE MATERIAL IS EFFECTED, THE TEMPERATURE OF THE PARTICULATE MATERIAL IN SAID FOLLOWING PORTION OF THE INITIAL ZONE ALSO BEING SUFFICIENTLY HIGH THAT ITS MOISTURE CONTENT BECOMES SUBSTANTIALLY REDUCED, D. FURTHER COOLING SAID MATERIAL AND SIMULTANEOUSLY ALSO SUBSTANTIALLY REDUCING ITS FINES AND DE-DUSTING IT BY PASSING IT THROUGH A COMPARTMENTALIZED TUMBLING ZONE IN SAID COOLER WHEREIN IT IS INTIMATELY COATED WITH A DE-DUSTING AGENT WHILE IT IS SIMULTANEOUSLY MECHANICALLY LIFTED AND ROTATED, THE MECHANICAL LIFTING AND ROTATION OF THE MATERIAL IN THIS TUMBLING ZONE BEING OF ANATURE WHICH PROVIDES A SUBSTANTIAL AMOUNT OF FREE-FALL OF THE PARTICLES AS THEY ARE BEING COATED, AND E. FINALLY DISCHARGING SAID COATED AND SUBSTANTIALLY COOLED MATERIAL FROM THE ROTARY COOLER.
2. A method of cooling according to claim 1 wherein some of the further cooling of step (c) is effected by air induced through air ducts situated within the indicated portion of the initial cooling zone.
3. A method according to claim 1 wherein the mechanical lifting in the compartmentalized tumbling zone of step (d) is carried out by a number of plates attached to a central hollow pipe and to the inner wall of the zone, which plates extend thE length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
4. A method according to claim 1 wherein the mechanical lifting in the compartmentalized tumbling zone of step (d) is carried out by a plurality of metal cylinders of substantially equal volume which extend the length of the zone, the outer walls of said cylinders being mechanically coupled to a central hollow pipe and the inner walls of the tumbling zone, said metal cylinders each possessing a plurality of mechanical lifters on its inner walls, thereby increasing the cooling action in the tumbling zone accomplished by the rotation of the cooler.
5. A method of cooling a hot particulate carbon material having an initial temperature between about 1900*F and about 2600*F which comprises the following steps: a. Introducing the hot carbon material into an initial zone of a slightly inclined continuously rotating, cylindrical rotary cooler which is of substantial length and cross-sectional area; b. Spraying water onto the carbon material in an entry portion of the initial zone of the rotary cooler, thereby substantially cooling said material; c. Further cooling said moistened carbon material by continuously introducing it into a following portion of the initial cooling zone in said cooler, said following portion of the initial cooling zone being of sufficient length that substantial additional cooling of the carbon material is effected, the temperature of the particulate carbon material in said following portion of the initial cooling zone also being sufficiently high that its moisture content becomes substantially reduced: d. Further cooling said carbon material and simultaneously also substantially reducing its fines and de-dusting it by passing it through a compartmentalized tumbling zone in said cooler wherein its temperature is a maximum of about 400*F and a minimum of about 250*F and wherein it is intimately coated with between about 0.05% and about 2% by weight of an oil spray while it is simultaneously mechanically lifted and rotated, the mechanical lifting and rotation of the carbon material in this tumbling zone being of a nature which provides a substantial amount of free-fall of the carbon particles as they are being coated; and e. Finally discharging said coated and substantially cooled material through a discharge zone of the rotary cooler.
6. A method according to claim 5 wherein the hot particulate carbon material is calcined anthracite.
7. A method according to claim 5 wherein the hot particulate carbon material is calcined delayed coker petroleum coke.
8. A method according to claim 7 wherein the calcined petroleum coke which is cooled has been calcined in a rotary kiln and is at a temperature of about 2400* to 2500*F when it is introduced into the rotary cooler.
9. A method according to claim 5 wherein the amount of water employed in step (b) averages between about 125 and about 135 gallons per ton of the carbon material.
10. A method according to claim 5 wherein the product leaving the final discharge zone contains a maximum of about 0.5% moisture and substantially the same percentage of oil as employed in step (d).
11. A method of cooling a hot particulate material which comprises the following steps: a. Introducing the particulate material into an initial zone of a slightly inclined continuously rotating, cylindrical rotary cooler which is of substantial length and cross-sectional area; b. Spraying water onto the material in an entry portion of the initial zone of the rotary cooler, thereby substantially cooling said material; c. Further cooling said moistened particulate material by continuously introducing it into a following portion of the initial cooling zone in said cooler, said following portion of the initial cooling zonE being of sufficient length that substantial additional cooling of the material is effected, the temperature of the particulate material in said following portion of the initial zone also being sufficiently high that its moisture content is capable of becoming substantially reduced; d. Further cooling said material by passing it through a compartmentalized tumbling zone in said cooler wherein it is mechanically lifted and rotated, the mechanical lifting and rotation of the material in this tumbling zone being of a nature which provides a substantial amount of free-fall of the particles; and e. Finally discharging said substantially cooled material from the rotary cooler.
12. A method of cooling according to claim 11 wherein some of the further cooling of step (c) is effected by air induced through air ducts situated within the indicated portion of the initial cooling zone.
13. A method of cooling according to claim 11 wherein the mechanical lifting in the compartmentalized tumbling zone of step (d) is carried out by a number of plates attached to a central hollow pipe and to the inner wall of the zone, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
14. A method of cooling according to claim 11 wherein some of the further cooling of step (c) is effected by the application of a contingently demanded water spray supplied to the particulate material in the following portion of the initial zone.
15. A method according to claim 11 wherein the particulate material from step d is further cooled by the application of a contingently demanded water spray before the material is discharged from the cooler.
16. A method of cooling a hot particulate carbon material having an initial temperature between about 1900*F and about 2600*F which comprises the following steps: a. Introducing the hot carbon material into an initial zone of a slightly inclined continuously rotating, cylindrical rotary cooler which is of substantial length and cross-sectional area; b. Spraying water onto the carbon material in an entry portion of the initial zone of the rotary cooler, thereby substantially cooling said material; c. Further cooling said moistened carbon material by continuously introducing it into a following portion of the initial cooling zone in said cooler, said following portion of the initial cooling zone being of sufficient length that substantial additional cooling of the carbon material is effected, the temperature of the particulate carbon material in said following portion of the initial cooling zone also being sufficiently high that its moisture content is capable of becoming substantially reduced, d. Further cooling said carbon material by passing it through a compartmentalized tumbling zone in said cooler wherein it is mechanically lifted and rotated, the mechanical lifting and rotation of the carbon material in this tumbling zone being of a nature which provides a substantial amount of free-fall of the carbon particles; and e. Finally discharging said substantially cooled material through a discharge zone of the rotary cooler.
17. A method of cooling according to claim 16 wherein some of the further cooling of step (c) is effected by air induced through air ducts situated within the indicated portion of the initial cooling zone.
18. A method according to claim 16 wherein the mechanical lifting in the compartmentalized tumbling zone of step (d) is carried out by a number of plates attached to a central hollow pipe and to the inner wall of the zone, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
19. A method of cooling according to claim 16 wherein some of the further cooling of step (c) is effected by the application of a contingently demandeD water spray supplied to the particulate material in the following portion of the initial zone.
20. A method of cooling according to claim 16 wherein the particulate material from step d is further cooled by the application of a contingently demanded water spray before the material is discharged from the cooler.
21. A method according to claim 16 wherein the hot particulate carbon material is calcined delayed coker petroleum coke.
22. A method according to claim 21 wherein the calcined petroleum coke which is cooled has been calcined in a rotary kiln and is at a temperature of about 2400* to 2500*F when it is introduced into the rotary cooler.
23. A method according to claim 16 wherein the amount of water employed in step (b) averages between about 125 and about 135 gallons per ton of the carbon material.
24. A method of cooling a hot particulate material which comprises the following steps: a. Introducing the particulate material into an initial zone of a slightly inclined continuously rotating, cylindrical rotary cooler which is of substantial length and cross-sectional area; b. Spraying water onto the material in an entry portion of the initial zone of the rotary cooler, thereby substantially cooling said material; c. Further cooling said moistened particulate material by continuously introducing it into a following portion of the initial cooling zone in said cooler, said following portion of the initial cooling zone being of sufficient length that substantial additional cooling of the material is effected, the temperature of the particulate material in said following portion of the initial zone also being sufficiently high that its moisture content is capable of becoming substantially reduced; d. Further cooling said material by passing it through a compartmentalized tumbling zone in said cooler wherein it is mechanically lifted and rotated, the mechanical lifting and rotation of the material in this tumbling zone being of a nature which provides a substantial amount of free-fall of the particles; e. Further cooling said material by passing it through an intermediate zone wherein there is relatively little tumbling, free-fall action of the particles; f. Further cooling said material by passing it through a second compartmentalized tumbling zone in said cooler wherein it is again mechanically lifted and rotated, the mechanical lifting and rotation of the material in this tumbling zone also being of a nature which provides a substantial amount of free-fall of the particles; and g. Finally discharging said substantially cooled material from the rotary cooler.
25. A method of cooling according to claim 24 wherein some of the further cooling of step c is effected by air induced through air ducts situated within the indicated portion of the initial cooling zone.
26. A method according to claim 24 wherein a supply of water is available which is thermally sensitive to the temperature of the particulate material being cooled and which can be contingently supplied to one or more of the steps of (b), (c) and (e) to provide close temperature control over the material being cooled.
27. A method according to claim 24 wherein the particulate material from step f is further cooled by the application of a contingently demanded water spray before the material is discharged from the cooler.
28. A method of cooling a hot particulate carbon material having an initial temperature between about 1900*F and about 2600*F which comprises the following steps: a. Introducing the hot particulate carbon material into an initial zone of a slightly inclined continuously rotating, cylindrical rotary cooler which is of substantial length and cross-sectional area; b. Spraying water onto the carbon material in an entry portion of the initial zone of the rotary cooler, thereby substantially cooling said material; c. Further cooling said moisteNed particulate carbon material by continuously introducing it into a following portion of the initial cooling zone in said cooler, said following portion of the initial cooling zone being of sufficient length that substantial additional cooling of the carbon material is effected, the temperature of the particulate carbon material in said following portion of the initial zone also being sufficiently high that its moisture content is capable of becoming substantially reduced; d. Further cooling said carbon material by passing it through a compartmentalized tumbling zone in said cooler wherein it is mechanically lifted and rotated, the mechanical lifting and rotation of the carbon material in this tumbling zone being of a nature which provides a substantial amount of free-fall of the carbon particles; e. Further cooling said carbon material by passing it through an intermediate zone wherein there is relatively little tumbling, free-fall action of the particles; f. Further cooling said carbon material by passing it through a second compartmentalized tumbling zone in said cooler wherein it is again mechanically lifted and rotated, the mechanical lifting and rotation of the material in this tumbling zone also being of a nature which provides a substantial amount of free-fall of the carbon particles; and g. Finally discharging said substantially cooled carbon material from the rotary cooler.
29. A method of cooling according to claim 28 wherein some of the further cooling of step (c) is effected by air induced through air ducts situated within the indicated portion of the initial cooling zone.
30. A method according to claim 28 wherein a supply of water is available which is thermally sensitive to the temperature of the particulate carbon material being cooled and which can be contingently supplied to one or more of the steps of (b), (c) and (e) to provide close temperature control over the carbon material being cooled.
31. A method according to claim 28 wherein the particulate carbon material from step f is further cooled by the application of a contingently demanded water spray before the material is discharged from the cooler.
32. A method according to claim 28 wherein the hot particulate carbon material is calcined delayed coker petroleum coke.
33. A method according to claim 32 wherein the calcined petroleum coke which is cooled has been calcined in a rotary kiln and is at a temperature of about 2400* to 2500*F when it is introduced into the rotary cooler.
34. A method according to claim 28 wherein the amount of water employed in step (b) averages between about 125 and about 135 gallons per ton of the carbon material.
35. A method according to claim 28 wherein the mechanical lifting in each of the compartmentalized tumbling zones of steps (d) and (f) is carried out by a number of plates attached to a central hollow pipe and to the inner wall of the particular zone, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
36. A cooling apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. thermocouple means within the cooler for measuring the temperature of the particles within the cooler at at least one location therein, said thermocouple means being placed in said location through central non-rotating conduit means supported by a rotating hub of the inclined cylinder and also being operatively connected to external fluid supply means capable of subjecting the particles to controlled amounts of fluid in different portions of the cooler, which amounts can be varied as desired depending upon fluctuations in the temperatUre of the particles within the cooler; B. means for subjecting the particulate material to the action of multiple fluid sprays directed upon the particulate material in different portions of the cooler; and C. external means outside the inclined cylinder for supplying the fluid to the cooler.
37. A cooling apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. thermocouple means within the cooler for measuring the temperature of the particles within the cooler at at least one location therein, said thermocouple means being placed in said location through central non-rotating conduit means supported by a rotating hub of the inclined cylinder and also being operatively connected to external water supply capable of subjecting the particles to controlled amounts of water in different portions of the cooler, which amounts can be varied as desired depending upon fluctuations in the temperature of the particles within the cooler; B. means for subjecting the particulate material to the action of multiple water sprays directed upon the particulate material in different portions of the cooler; and C. external means outside the inclined cylinder for supplying the water to the cooler.
38. An apparatus according to claim 37 including a discharge zone, and a thermocouple following the discharge zone for measuring the temperature of the particles leaving the cooling apparatus and for actuating and supplying contingently demanded water from a water spray nozzle in or near the downstream end of the cooler whenever the temperature of the particles leaving the cooler exceeds that desired.
39. An apparatus according to claim 37 wherein the cooler contains air ducts capable of inducing controlled amounts of air into the interior of the cooler while simultaneously preventing the escape of any of the particulate material being cooled.
40. An apparatus according to claim 37 wherein the upstream portion of the cooler comprises an entry zone wherein is applied the major portion of the total water sprayed upon the particulate material being cooled.
41. A cooling apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles, said zone including: a. means for subjecting the particulate material to the action of multiple fluid sprays directed upon the particulate material in different portions of said zone; and b. thermocouple means within said zone for measuring the temperature of the particles within the zone at at least one location therein, said thermocouple means being placed in said zone through central non-rotating conduit means supported by a rotating hub of the inclined cylinder and also being operatively connected to external fluid supply means so as to subject the particles to controlled amounts of fluid in different portions of said zone, which amounts can be varied as desired depending upon fluctuations in the temperature of the particles within said zone; B. a following compartmentalized tumbling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material from the preceding initial zone; and C. external means outside the inclined cylinder for supplying the fluid to the cooler.
42. An apparatus according to claim 41 wherein the compartmentalized tumbling zone of B comprises a number of plates which are attaChed to the inner wall of the zone and also to a rotating central hollow pipe which serves as the hub of the inclined cylinder and which surrounds the central non-rotating conduit means, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
43. An apparatus according to claim 41 wherein the initial zone contains air ducts capable of inducing controlled amounts of air into the interior of the cooler while simultaneously preventing the escape from said zone of any of the particulate material being cooled.
44. A cooling apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles, said zone including: a. means for subjecting the particulate material to the action of multiple water sprays directed upon the particulate material in different portions of said zone; and b. thermocouple means within said zone for measuring the temperature of the particles within the zone at at least one location therein, said thermocouple means being placed in said zone through central non-rotating conduit means supported by a rotating hub of the inclined cylinder and also being operatively connected to external fluid supply means so as to subject the particles to controlled amounts of water in different portions of said zone; which amounts can be varied as desired depending upon fluctuations in the temperature of the particles within said zone; B. a following compartmentalized tumbling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material from the preceding initial zone; and C. external means outside the inclined cylinder for supplying the water to the cooler.
45. An apparatus according to claim 44 including a discharge zone following the tumbling zone wherein there is again little or no tumbling, free-fall action of the particles, and a thermocouple following the discharge zone for measuring the temperature of the particles leaving the cooling apparatus and for actuating and supplying contingently demanded water from a water spray nozzle in or near the downstream end of the cooler whenever the temperature of the particles leaving the cooler exceeds that desired.
46. An apparatus according to claim 44 wherein the upstream portion of the initial zone comprises an entry zone wherein is applied the major portion of the total water sprayed upon the particulate material being cooled.
47. A cooling apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles, said zone including: a. means for subjecting the particulate material to the action of multiple water sprays directed upon the particulate material in different portions of said zone; and b. thermocouple means within said zone for measuring the temperature of the particles within the zone at at least one location therein, said thermocouple means being operatively connected to external water supply means so as to subject the particles to controlled amounts of water in different portions of said zone, which amounts can be varied as desired depending upon fluctuations in the temperature of the particles within Said zone; B. a first compartmentalized tumbling zone within said cylinder wherein there is a considerable amount of tumbling, free-fall action of the particles from the preceding initial zone; C. an intermediate zone in said cylinder wherein again there is relatively little tumbling, free-fall action of the particles, said zone including thermocouple means for measuring the temperature of the particulate material, said thermocouple means being operatively connected to external water supply means so as to contingently subject the particles to a controlled amount of water within said zone, which amount can be varied as desired depending upon fluctuations in the temperature of the particles within said zone; D. a second compartmentalized tumbling zone within said cylinder wherein there is again a considerable amount of tumbling, free-fall action of the particulate material from the intermediate zone; E. a final discharge zone within said cylinder following the second tumbling zone, wherein there is again relatively little tumbling, free-fall action of the particles; and F. external means outside the inclined cylinder for supplying the water to the cooler.
48. An apparatus according to claim 47 including a thermocouple following the discharge zone for measuring the temperature of the particles leaving the cooling apparatus and for actuating and supplying contingently demanded water from a water spray nozzle in or near the downstream end of the cooler whenever the temperature of the particles leaving the cooler exceeds that desired.
49. An apparatus according to claim 47 wherein the initial zone contains air ducts capable of inducing controlled amounts of air into the interior of the cooler while simultaneously preventing the escape from said zone of any of the particulate material being cooled.
50. An apparatus according to claim 47 wherein the upstream portion of the initial zone comprises an entry zone wherein is applied the major portion of the total water sprayed upon the particulate material being cooled.
51. An apparatus according to claim 47 wherein each of the compartmentalized tumbling zones of B and D comprises a number of plates which are attached to the inner wall of the particular zone, and also to a rotating central hollow pipe which serves as the hub of the inclined cylinder and which surrounds the central non-rotating conduit means, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
52. A cooling and de-dusting apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, de-dusting and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles, said zone including means for subjecting the particulate material to the action of a de-dusting agent spray directed upon the particulate material as it leaves said zone; B. a following compartmentalized tumbling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material through the de-dusting agent spray from the preceding zone so that the particulate material becomes thoroughly mixed with the de-dusting agent sprayed upon it, thereby substantially de-dusting it; C. external means outside the inclined cylinder for providing the de-dusting agent to the zone of A; and D. central, non-rotating conduit means, supported by a rotating hub of the inclined cylinder and also being operatively connected to the external means of C and leading through the tumbling zone of B and into the initial zone of A, for transmitTal of the de-dusting agent in the manner indicated.
53. A cooling and de-dusting apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, de-dusting and tumbling, free-fall aciton of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles, said zone including: means for subjecting the particulate material to the action of a de-dusting agent spray directed upon the particulate material as it leaves said zone; and means also for contingently subjecting the particulate material to the action of a water spray before it is subjected to the de-dusting agent spray; B. a following compartmentalized tumbling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material through the de-dusting agent spray from the preceding zone so that the particulate material becomes thoroughly mixed with the de-dusting agent sprayed upon it, thereby substantially de-dusting it; C. external means outside the inclined cylinder for providing the de-dusting agent and the water to the zone of A; and D. central, non-rotating conduit means, supported by a rotating hub of the inclined cylinder and also being operatively connected to the external means of C and leading through the tumbling zone of B and into the initial zone of A for transmittal of the de-dusting agent and the contingently demanded water in the manner indicated.
54. An apparatus according to claim 11 including a thermocouple within the zone of A for measuring the temperature of the particles being cooled and for actuating the contingently demanded water spray supply when the temperature of the particles exceeds that desired for contact with the de-dusting agent, said thermocouple being placed in said zone A through the central non-rotating conduit means of D.
55. An apparatus according to claim 53 wherein the compartmentalized tumbling zone of B comprises a number of plates which are attached to the inner wall of the zone and also to a rotating central hollow pipe which serves as the hub of the inclined cylinder and which surrounds the central non-rotating conduit means, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
56. A cooling and de-dusting apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, de-dusting and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder into which the material to be de-dusted, tumbled and cooled is introduced, said zone possessing means for subjecting the particulate material to the action of a water spray near the inlet of said zone and also means for contingently subjecting the material to a water spray near the outlet of said zone and in which zone there is relatively little tumbling, free-fall action of the particles; B. a first compartmentalized tumbling and cooling zone in said cylinder wherein there is a considerable amount of tumbling, free-fall action of the particles; C. an intermediate zone in said cylinder wherein again there is relatively little tumbling, free-fall action of the particles, said zone including: means for subjecting the particulate material to the action of a de-dusting agent spray directed upon the particulate material as it leaves said zone; and means also for contingently subjecting the particulate material to the action of a water spray bEfore it is subjected to the de-dusting agent spray; D. a second compartmentalized tumbling zone in said cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material through the de-dusting agent spray from the preceding zone so that the particulate material becomes thoroughly mixed with the de-dusting agent sprayed upon it, thereby substantially de-dusting it; E. a final discharge zone in said cylinder wherein there is again relatively little tumbling, free-fall action of the particles; and F. external means outside the inclined cylinder for providing the water to the zone of A and also for providing the de-dusting agent and the water to the intermediate zone of C.
57. An apparatus according to claim 56 including a thermocouple within the zone of C for measuring the temperature of the particles being cooled and for actuating the contingently demanded water spray supply when the temperature of the particles exceeds that desired for contact with the de-dusting agent.
58. An apparatus according to claim 56 including a thermocouple following the discharge zone for measuring the temperature of the particles leaving the cooling apparatus and for actuating and supplying contingently demanded water from a water spray nozzle in or near the downstream end of the cooler whenever the temperature of the particles leaving the cooler exceeds that desired.
59. An apparatus according to claim 56 wherein the initial zone contains air ducts capable of inducing controlled amounts of air into the interior of the cooler while simultaneously preventing the escape from said zone of any of the particulate material being cooled.
60. An apparatus according to claim 56 wherein the upstream portion of the initial zone comprises an entry zone wherein is applied the major portion of the total water sprayed upon the particulate material being cooled.
61. An apparatus according to claim 56 wherein each of the compartmentalized tumbling zones of B and D comprises a number of plates which are attached to the inner wall of the particular zone, and also to a rotating central hollow pipe which serves as the hub of the inclined cylinder and which surrounds the central non-rotating conduit means, which plates extend the length of the zone to form the compartments, and spaced lifters which are attached to said plates and to the inner wall of the zone between the plates.
62. A cooling and de-dusting apparatus capable of subjecting a hot, loose particulate material processed through same to a considerable amount of cooling, de-dusting and tumbling, free-fall action of the particles, said apparatus including a slightly inclined cylinder of substantial length and cross-sectional area and said apparatus also possessing the following as essential features: A. an initial zone within the cylinder wherein there is relatively little tumbling, free-fall action of the particles; B. a first compartmentalized tumbling and cooling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particles; C. an intermediate zone in said cylinder wherein again there is relatively little tumbling, free-fall action of the particles, said zone including means for subjecting the particulate material to the action of a de-dusting agent spray directed upon the particulate material as it leaves said zone; D. a second compartmentalized tumbling zone within the cylinder wherein there is a considerable amount of tumbling, free-fall action of the particulate material through the de-dusting agent spray from the preceding zone so that the particulate material becomes thoroughly mixed with the de-dusting agent sprayed upon it, thereby substantially de-dusting it; E. a final discharge zone in said cylinder wherein there is again relatively little tumbling, free-fall action of the particles; and F. external means outside the inclined cylinder for providing the de-dusting aGent spray to the intermediate zone C.
63. An apparatus according to claim 62 including a thermocouple within the zone of C for measuring the temperature of the particles being cooled and for actuating a contingently demanded water spray supply when the temperature of the particles exceeds that desired for contact with the de-dusting agent.
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