| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Combination conduction/convection furnace | US10036575 | 2001-12-21 | US06547556B2 | 2003-04-15 | Scott P. Crafton; James L. Lewis, Jr. |
| A single furnace system integrates, in combination, two or more distinct heating environments (which in the preferred embodiments include a conduction heating environment and a convection heating environment) integrated such that the multiple environments define a continuous heating chamber through which a moving workpiece (such as a casting) transitions from one heating environment to the other without being exposed to the atmosphere. In accordance with the preferred methods, the transitioning of the casting from one environment to the other is accomplished with no meaningful change in temperature. | ||||||
| 142 | Process for the production of granules in a circulating fluidized bed,, apparatus for the performance of the process and granules obtained in accordance with the process | US10188113 | 2002-07-03 | US20030037415A1 | 2003-02-27 | Hans Christian Alt; Andreas Geisselmann; Natalia Hinrichs; Hermanus Gerhardus Jozef Lansink Rotgerink |
| A continuous process and apparatus for the production of at least approximately spherical, substantially solid particles, in which the particles are granulated in a circulating fluidized bed. This can be achieved by spraying a suspension or a solution of the solid which forms the particles into a chamber. A drying gas is passed through the chamber at a velocity which is sufficient to effect pneumatic conveying of already partially dried or agglomerated particles. The particles conveyed by the drying gas stream are separated from the exhaust gas stream and returned, at least in part, to the chamber. Particles with a size within the desired particle size range are continuously discharged from the chamber, such that the mass present in the chamber remains constant. | ||||||
| 143 | Apparatus and process for treating a particulate material within a rotating retort | US10117516 | 2002-04-05 | US20020112792A1 | 2002-08-22 | Willard E. Kemp |
| Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting movement in a vertical plane. Gas conduits (18A, 18B) are mounted within an axle (18) for the supply and exhaust of gas for retort (31). A conduit (55) mounted within the other axle (41) permits particulate material to be passed into or out of the retort (31) as shown in FIG. 1B. A removable injection assembly (90, FIG. 10) is utilized for the injection of additional particulate material. A removable sampling assembly (95, FIG. 11) is utilized for removing a sample of the particulate material from the retort (31). As the retort (31) is rotated, particles of the particulate material are constantly intermingled with each other and the walls of the retort (31). Microwave energy as shown in FIGS. 13-14 may be utilized to heat or dry materials within the retort (31). A plenum (105H) and a permeable membrane (105R) may be provided in an end wall (105B) of a retort (105A) as shown in FIG. 17. | ||||||
| 144 | Apparatus for recovering hydrocarbons from granular solids | US09632107 | 2000-08-03 | US06276306B1 | 2001-08-21 | Michael L. Murphy; James M Scranton; Ronald A Siverson; Michael K. Kologi |
| An apparatus (10) for recovering hydrocarbons or other volatile material from granular solids includes an infeed conveyor (20) that moves the mud, containing a mixture of particulate solids and hydrocarbons, into the fluid bed (40). The fluid bed fluidizes the mud; i.e. transforms the mud from a first condition wherein it is a mass having a consistency with elements of similarity with oatmeal, to a second condition wherein it is a mass of swirling particles. Some of the particles leave the fluid bed through a slide gate at the bottom. Other particles, gas and the hydrocarbons leave the fluid bed through an opening at the top, and are transferred to one or more cyclones (60). In the cyclones, the rapid circular motion of the gas, hydrocarbons and particles results in the particles hitting the inside surface of the cyclone, sliding downwardly, and leaving the cyclone through a slide gate. The mixture of gas and hydrocarbons leave the cyclone and moves through a spray apparatus (80), which removes the hydrocarbons from the mixture, and into an oil-condensing tank (100). A fan assembly (120) draws gas from an upper portion of the oil-condensing tank and delivers it to a preheater (140) where the temperature of the gas is elevated. The heated gas is then recirculated by release through a plurality of nozzles within the fluid bed. A thermal fluid heat source (220) provides heat energy to in-bed tubes within the fluid bed and to the gas preheater. | ||||||
| 145 | Apparatus and process for cooling and de-steaming calcined stucco | US357731 | 1999-07-21 | US6138377A | 2000-10-31 | Michael L. Bolind; Michael J. Porter |
| The present invention is an apparatus and process for cooling and de-steaming hot calcined stucco used in the production of gypsum boards or bagged plaster. The apparatus is a fluid bed stucco cooler and comprises a cooler housing having a plenum with two chambers, a first chamber having a stucco inlet and a second chamber having a stucco outlet. The stucco cooler includes cooling coils that are located within the plenum and a fluidization pad positioned through the fluidization pad help to mix the air and the stucco powder to insure fluidization, prevent channeling, and prevent the stucco powder from building up on the cooling coils. The air also forces steam from the hot calcined stucco out through an air outlet located at the top of the stucco cooler, thereby de-steaming the stucco. The stucco flows through the plenum and passes over the cooling coils, thereby cooling the stucco as it reaches the stucco outlet. | ||||||
| 146 | Method and apparatus for continuous treatment of particulate material | US105808 | 1998-06-26 | US6000145A | 1999-12-14 | Jorn Touborg |
| A method for the continuous treatment of particulate material, such as cement raw meal, in an apparatus comprising a stationary reactor (6) configured as a conical spouted bed, to which the material is fed and treated in a suspended bed by means of gas which, via a centrally arranged gas inlet (21), is injected at the bottom of the reactor (6) and flows upwards through the reactor (6), and wherefrom the material is discharged via an opening (21) at the bottom of the reactor (6). The dimensions, operating parameters of the reactor (6, 21) or the volumes of the connected apparatuses (8a) are selected and regulated in such a way that during operation the bed pulsates up and down in the reactor (6) at such an amplitude that a quantity of the bed material which corresponds to the quantity of flesh feed material, when the bed is situated in its lowermost position, is brought into a zone (22) in which the gas flow velocity is lower than the minimum velocity required for suspending the bed particles, and thereby drops through the gas flow out of the reactor (6). | ||||||
| 147 | Process for treating a particulate material within a rotating retort | US89296 | 1998-06-01 | US5958156A | 1999-09-28 | Willard E. Kemp |
| Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting movement in a vertical plane. Gas conduits (18A, 18B) are mounted within an axle (18) for the supply and exhaust of gas for retort (31). A conduit (55) mounted within the other axle (41) permits particulate material to be passed into or out of the retort (31) as shown in FIG. 1B. A removable injection assembly (90, FIG. 10) is utilized for the injection of additional particulate material. A removable sampling assembly (95, FIG. 11) is utilized for removing a sample of the particulate material from the retort (31). As the retort (31) is rotated, particles of the particulate material are constantly intermingled with each other and the walls of the retort (31). | ||||||
| 148 | Fluidized bed heat treatment furnace | US538703 | 1995-10-03 | US5832848A | 1998-11-10 | Ray William Reynoldson; Andrew Simpson Fitchett |
| A fluidized bed heat treatment apparatus is provided to be heated by combusting fuel gas in a manner to minimize or prevent the exhaust of carbon monoxide, the apparatus including a retort containing refractory particles to be fluidized, a first inlet in a lower region of the retort for introducing fuel/air mixture into the retort, a second inlet in a lower region of the retort for introducing secondary air into the retort, a temperature sensor located above the first and second inlets, a flame initiator located above the refractory particles, an externally located mixer to mix fuel and air in desired proportions and to supply same to the first inlet, and a control device arranged to control said externally located mixer in response to temperatures sensed by said temperature sensor whereby when the temperature sensor is below a predetermined temperature indicative of the bed being substantially not fluidized, a stoichiometric fuel/air mixture is supplied to the first inlet and when the temperature sensor senses a temperature above the predetermined level indicative of the bed being substantially fluidized, a less than stoichiometric fuel/air mixture is supplied to the first inlet with secondary air being supplied through said second inlet. | ||||||
| 149 | Sintering method of cement clinkers and sintering apparatus of the same | US637765 | 1996-04-23 | US5690730A | 1997-11-25 | Isao Hashimoto; Shozo Kanamori; Mikio Murao; Norio Yokota; Nichitaka Sato; Katsuji Mukai |
| A sintering method of cement clinkers in which preheated cement raw material powder is granulated and sintered in a fluidized bed granulating and sintering furnace, and granulated and sintered clinkers are introduced into a cooling device, for manufacturing high-quality cement clinkers by use of a single fluidized bed-granulating and sintering furnace efficiently with a small heat loss, wherein clinkers are discharged from the fluidized bed granulating and sintering furnace through a clinker dropping hole which is provided in a fluidizing gas distributor of the furnace or in a radial direction extending from the gas distributor, an opening area of the clinker dropping hole is regulated by a gate portion to maintain the differential pressure in a fluidized bed within a predetermined range, air for classifying and cooling the clinkers is blown into a discharge chute connected to the clinker dropping hole, the amount of the blown air is regulated to make the flow velocity of the air blowing from the clinker dropping hole different from the flow velocity of air flowing through nozzles of the gas distributor, and the clinkers are introduced into a cooling device through a hermetic discharge device provided below the classifying and cooling air intake position, | ||||||
| 150 | Product recovery tube assembly | US963814 | 1992-10-20 | US5322670A | 1994-06-21 | Jameel Ibrahim; Robert E. Farritor |
| A product withdrawal tube for use in a fluidized bed reactor is disclosed. The tube features a plurality of elongated tubular segments which are fitted together to obtain flexible and sealing engagement between the segments whereby the tube is durable despite the vibrations and shocks experienced by it due to the operation of the fluidized bed reactor. | ||||||
| 151 | Method and apparatus for the high-temperature treatment of fine-grained solids in a melting cyclone | US881438 | 1992-05-11 | US5282883A | 1994-02-01 | Kiranenda Chaudhuri; Gerhard Melcher |
| A method and apparatus for high temperature treatment of particulate metal ore concentrate solids with a cyclone having a tangentially positioned burner directing a jet flame into the cyclone, an ore injecting nozzle positioned to inject a stream of ore with oxygen containing gas into the jet flame of the burner at a location at least one-third of the travel of the flame and into the hottest region thereof so that the particles are melted and do not abrasively impact the walls of the cyclone in an unmelted stage. | ||||||
| 152 | Angle of repose valve | US892698 | 1992-05-28 | US5205998A | 1993-04-27 | James E. Boone; David W. Owens; Robert E. Farritor; Wesley D. Blank |
| An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc. | ||||||
| 153 | Angle of repose valve | US426846 | 1989-10-26 | US5202099A | 1993-04-13 | James E. Boone; David W. Owens; Robert E. Farritor; Wesley D. Blank |
| An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc. | ||||||
| 154 | Fluid bed furnace | US690321 | 1991-04-26 | US5103773A | 1992-04-14 | Sven B. Andersson; Bo G. Leckner; Lars-Erik Amand |
| At a fluidbed furnace comprising a combustion shaft, a particle separator, a particle return passage and designed according to conventional design criteria for obtaining a good combustion at moderate temperature, a destruction of laughing gas (N.sub.2 O), and complete combustion of possible unburnt particles in the combustion gases is brought about in a reactor passage at the entrance of which a combustion means is located. The reactor passage is moderately cooled, so the increase of temperature in the combustion gases is maintained substantially constant unto the first convection heating surface. | ||||||
| 155 | Fluidized bed combustor and a method of operating same | US328258 | 1981-12-07 | US4828486A | 1989-05-09 | Koya Sakamoto; Yutaka Yoneda; Naoki Fujiwara; Shigehito Takamoto |
| A fluidized bed combustor wherein a combustion chamber and a regeneration chamber are both contained in a single hollow body is provided. These two chambers are formed by vertically partitioning the body by a partition wall, which has an upper opening and a lower one, and also each have a perforated plate at the bottom part thereof on which a heat transfer medium containing a desulfurizing agent is placed and fluidized. The desulfurizing agent is transferred from the combustion chamber through the lower opening to the regeneration chamber and circulated by overflow through the upper opening again to the combustion chamber. Various modifications of the above-mentioned fundamental embodiment are proposed. Combustion and desulfurization are automatically and effectively carried out in a single apparatus to give a high percentage desulfurization, make the apparatus compact, and reduce the initial cost and the running cost thereof. | ||||||
| 156 | Apparatus for heat exchange between gas and fine-grained material | US042160 | 1987-04-24 | US4756093A | 1988-07-12 | Otto Heinemann; Heinz-Herbert Schmits |
| The invention relates to apparatus for heat exchange between gas and fine-grained material containing a plurality of cyclone-like separators which are arranged one above the other and have bent central axes. Such a heat exchanger is distinguished by a particularly compact construction and a good separating capacity of the individual separators. | ||||||
| 157 | Construction for pulse jet combustor dehydration section | US783857 | 1985-10-03 | US4624635A | 1986-11-25 | Robert R. Gray; Thomas G. Lindahl |
| Improved dehydration section construction for pulse jet combustion apparatus for the drying of particulate materials that includes a plurality of exhaust flow disturbing rings on the confining walls thereof. | ||||||
| 158 | Method of manufacturing crystalline silicon carbide employing acid pretreated rice husks | US689469 | 1985-01-07 | US4591492A | 1986-05-27 | Minoru Tanaka; Tadashi Kawabe; Masafumi Kobune |
| A method of manufacturing silicon carbide crystals in which a rice husk raw material is pretreated with an acid solution (e.g., 5N to 6N H.sub.2 SO.sub.4, HCl or HNO.sub.3) prior to being heated in a furnace of non-oxidizing atmosphere. Pretreatment of the rice husks in this manner results in silicon carbide crystals of high purity. | ||||||
| 159 | Fluidization aid for cohesive materials | US696670 | 1985-01-30 | US4583299A | 1986-04-22 | Edward F. Brooks |
| Tendrillar carbonaceous material is used as a fluidization aid for fluidizing cohesive materials in fluidized beds. The tendrillar carbonaceous material can be a fibrous, particulate carbonaceous material comprising carbon fibers and a ferrous group metal component dispersed throughout the carbon fibers as nodules. The tendrillar carbonaceous material has a bulk density of from about 0.04 to about 0.7 g/cm.sup.3 and comprises an agglomeration of tendrils having a diameter of from about 0.01 to about 1 micron and a length to diameter ratio of from about 5:1 to about 1000:1. | ||||||
| 160 | Method for drying particulate law rank coal in a fluidized bed | US594967 | 1984-03-29 | US4571174A | 1986-02-18 | Walter W. Shelton |
| An improved method for drying particulate low rank coal in a fluidized bed wherein the improvement comprises flowing hot fluidizing gas of varying temperatures upwardly through the fluidized bed so that the hottest fluidizing gas flows upwardly through the coal nearest the coal inlet and the coolest fluidizing gas flows upwardly through the coal nearest the dried coal outlet from the fluidized bed. | ||||||
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