专利检索_ 使原料颗粒化的一般方法或装置如肥料专利检索_ 使原料颗粒化的一般方法或装置如肥料专利检索查询

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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
161	Method for manufacturing solid processing composition for silver halide photographic light-sensitive materials	US681597	1996-07-29	US5635342A	1997-06-03	Takashi Deguchi
A method for manufacturing a granular solid processing composition for a silver halide photographic light-sensitive material is disclosed, which comprises the steps of:granulating a composition comprising at least one photographic processing agent with stirring in the presence of a liquid to obtain granules; and dressing the granules.
162	Pelletized composition for treatment of storm water runoff	US598232	1996-02-07	US5624576A	1997-04-29	James H. Lenhart; John H. Knutson; William C. Stewart; David C. Campbell
A pelletized composition and method of using this composition for removing pollutants from storm water runoff. A bed of the pellets has a useful initial permeability to storm water runoff, and retains a significant proportion of this permeability for a period of several years. Preferably, the pellets are dried to a moisture content of less than 25 wt. % so that they are able to withstand a crush force of at least 7 lb., without structural failure. Optionally, the pellets may contain gravel that forms a core of the compost pellet and that assists in causing the compost to agglomerate into a rounded pellet. When immersed in water, the pellets retain the original dry shape and maintain a significant proportion of the crush strength while providing interstitial spaces through which storm water can flow thereby reducing the problem of sedimentation that is encountered in unpelletized beds of compost used in this service.
163	Method of large sphere production at zero gravity	US846625	1992-03-05	US5322652A	1994-06-21	Gregory R. Brotz
A method of creating large hollow spheres and other shapes and structures produced according to such method, such method including suspending in a zero gravity environment a molten material mixed with a blowing agent which is caused to foam, expanding into a mass wherein the exterior sphere wall is solidified and the interior is hollowed out.
164	Method and apparatus for granulation and granulated product	US631249	1990-12-20	US5100592A	1992-03-31	Robert E. Sparks; Norbert Mason; Michael Center
A method of melt granulation for powdery material is disclosed wherein the powdery material is discharged onto the upper surface of a heated rotary spreader for migration under centrifugal force to the periphery of the spreader accompanying by melting of a portion of the material and enrobing of non-melted particles by the melted material for discharge as enlarged granules from the periphery of the spreader. To improve the quality of the granules produced, the feed material is supplied to the spreader at two separate locations. The first location is the central portion of the spreader to provide the melted material and the second location is adjacent to the periphery of the spreader. The spreader is preferably in the form of a concave bowl or inverted truncated cone or dish. Feed material is supplied to the first location by a screw feeder extending down the side of the dish and at the second location by a rotary vaned distributor located within the dish which radially flings the feed material onto the inclined dish wall. The process and apparatus is particularly useful for the production of non-sticky granules which are difficult to form when a single central feed of material is used.
165	Continuous method for preparation of granulated sodium perborate	US355845	1989-05-17	US4968500A	1990-11-06	Birgit Bertsch-Frank; Klaus Mueller; Thomas Lieser
The spray drying of a solution containing hydrogen peroxide and sodium metaborate to obtain primary particles which are immediately conveyed after leaving the drying zone to a granulating device and are then granulated in the presence of free and/or perborate water of crystallization. The granulated materials are dried, if necessary. The generally amorphous primary particles are converted into granulated materials with at least partially crystalline structure and significantly improved shelf life. The work is performed with advantage in a spray dryer with integrated fluid bed or in a compressing granulating device. The method is suitable for preparing perborate granulated materials with over 10% by wt., especially perborate monohydrate granular materials with 14-16% by wt. active oxygen.
166	Device for the cryogenic pelletization of liquids	US407533	1989-09-15	US4967571A	1990-11-06	Hans P. Sporri
In a device for the cryogenic pelletization of liquids by dripping the liquids into a coolant having a temperature sufficiently cold to solidify the drops, said device including a liquid container mounted above a coolant reservoir, a dripping unit at the bottom of said container, said dripping unit including an inner disk disposed toward the interior of said container, an outer disk against said inner disk, said outer disk being disposed toward said coolant reservoir, flow openings in said inner and outer disks alignable with each other to permit liquid reservoir, means for rotating one of said disks with respect to the other of said disks to adjust the effective size of said flow openings by adjusting their degree of alignment, the improvement being in that nozzle-like drip-off elements being mounted in said flow openings of said outer disk, and said elements being detachably mounted to comprise replaceable insert elements.
167	Particulate material treating apparatus	US39140	1987-04-16	US4789105A	1988-12-06	Masuo Hosokawa; Akio Tanaka; Keiichiro Kohmitsu; Tohei Yokoyama; Kiyoshi Urayama; Sadamitsu Matsuo; Masashi Kato
An apparatus for treating a particulate material comprising a casing defining a treating chamber and rotatable at high speed to produce a centrifugal force for pressing the material in the casing against an inside wall surface of the casing. Treating members such as pulverizing members are disposed in the casing for revolution relative to the inside wall surface of the casing. The treating chamber has a discharge opening for permitting overflows of the material under treatment. The discharge opening is disposed adjacent a center of rotation of the casing, and a limiting device is provided adjacent the discharge opening for limiting the overflows of the material under treatment. A classifier is provided to communicate with the discharge opening of the treating chamber for receiving treated material.
168	Sintered low density gas and oil well proppants from a low cost unblended clay material of selected composition	US818058	1986-01-10	US4668645A	1987-05-26	Arup Khaund
A solid granular propping agent is disclosed having a Krumbein number of greater than 0.8, and containing granules between 0.2 and 1.7 mm in diameter, said granules being made from an unblended clay containing from 16 to 19% of silica, less than 0.35% alkali and alkaline earth metal oxides, and being fired at a time and temperature whereby the product contains a major mullite phase and a minor alpha alumina phase.
169	Apparatus for particulating materials	US720922	1985-04-08	US4568258A	1986-02-04	E. Webb Henderson
An apparatus for drying pellets of particulate material such as carbon black is characterized by a columnar drying vessel containing inclined trays or screens positioned so that the pellets or particulates roll from screen to screen down the column. Preferably, the pellets are subjected to countercurrent flow of drying gases while flowing down the screens. In other aspects, carbon black is pelleted with a nonaqueous liquid pelleting fluid and dried with vapors of the same pelleting fluid.
170	Granulating apparatus	US703999	1976-07-09	US4152078A	1979-05-01	Thomas A. Pilgrim
Porous gypsum granules are produced by adding powdered plaster to a stable aqueous foam and agitating the foam until granules of desired size are formed. Agitation is terminated before the foam collapses, but when the foam has subsequently collapsed the damp granules are recovered and dried. The product granules have a generally spheroidal shape mainly in the size range 0.25 to 2 mm, with a fine compact outer surface layer and a coarser interior with voids which confer high absorbency. These can be used as carriers for active materials such as herbicides or insecticides for agricultural or horticultural purposes or as fillers for plastics. Apparatus for continuously mixing fluid materials and suitable for use with foam and gypsum consists of a trough-shaped conveyor with a series of rotary agitators spaced along it.
171	Agglomeration of finely divided sulfur particles in a liquid suspension	US814486	1977-07-11	US4102968A	1978-07-25	Bruce F. Caswell
Finely divided sulfur particles in a liquid suspension are agglomerated by adding molten sulfur to the suspension and agitating the mixture to transform the particles into agglomerates wherein the finely divided sulfur particles are held together by the previously molten, now solidified sulfur, acting as a binder agent.
172	Pelleted sulfur compositions	US689858	1976-05-25	US4032469A	1977-06-28	Henning Bartzsch
Pelleted sulfur compositions consisting essentially of particles of sulfur which include a substantial proportion of carbon-disulfide-insoluble sulfur particles together with a binder consisting essentially of a plasticizing or softening oil containing an anionic or nonionic surfactant in an amount equivalent to between 0.5 and 10% of the weight of the pelleted composition, the pelleted composition containing an amount of the plasticizing oil equivalent to between 10 and 60% of its weight. The pelleted composition is free-flowing, storable, and disperses homogeneously when distributed in rubber mixtures by milling on heated compounding rolls.
173	Inert carrier mixing process	US241765	1972-04-06	US3987138A	1976-10-19	Douglas W. Hege
This application is directed to processes involving the use of nonmiscible inert liquid carriers such as halogenated hydrocarbons. The processes are applicable to mixing, agglomerating, coating, dyeing, reorientating, crystallizing, precipitating, reacting and similar types of operations. Examples of products which can be treated by these processes are foods, pharmaceuticals, detergents, fabrics and papers. The inert carrier acts as an expanded matrix to support and disperse such products to facilitate carrying out the indicated operating steps.
174	Hollow pellets and method of making same	US532270	1974-12-12	US3978269A	1976-08-31	Robert M. Martin
In accordance with the invention, hollow pellets having outer surfaces of one material and inner surfaces of another material are manufactured by dropping drops of liquid into a bed of powder containing the material of which it is desired to make the outer surface portions of the hollow pellets and preferably also a binder, the liquid containing the material of which it is desired to make the inner surface portions of the hollow pellets. When the drops of liquid fall into the powder, the powder immediately forms a spherical shell around each drop so as to form the hollow pellets upon vaporization of the liquid. It is preferred that the powder additionally contain some sodium bicarbonate or the like and that the liquid be an aqueous acid solution such that, upon initial formation of the spherical shell of powder, the acid reacts with the sodium bicarbonate to generate carbon dioxide which causes the spherical shell to expand while yet additional powder coalesces onto the shell. This results in hollow pellets wherein the inner surfaces are formed from material included in the liquid and the outer surfaces are formed from material included in the bed. The method is particularly useful for the manufacture of pellets wherein at least the outer surfaces are of ceramic, there being a firing operation on the pellets after removal from the powder bed so as to sinter the ceramic to monolithic structure.
175	Stabilized polyphenylene ether type resin composition	US523931	1974-11-14	US3952072A	1976-04-20	Eiichi Yonemitsu; Akitoshi Sugio; Masanobu Masu; Masaharu Kimura; Masao Okabe; Norio Sayama; Masatsugu Matsunaga
Stabilized polyphenylene ether type resin composition obtained by compounding a polyphenylene ether type resin with one or more of stabilizer-component such as those respectively (a) a high molecular phosphorous ester having at least three phosphorous ester-bondings per molecule, (b) a high molecular phosphorous ester as said above and dicarboxylic acid dihydrazide substitution product, (c) a high molecular phosphorous ester as said above and steric hindered phenols and (d) a high molecular phosphorous ester as said above, steric hindered phenols and dicarboxylic acid dihydrazide substitution product; and, if desired, boron oxide.
176	Apparatus for forming solid spherical pellets	US39375773	1973-09-04	US3890072A	1975-06-17	BARKS RONALD E
Method and means of forming solid substantially spherical pellets from droplets of a slurry of finely divided solid aluminous particles and a deflocculant, delivered by gravity to and along a heated sloping surface at a temperature and of a length sufficient to dry the droplets of slurry en route therealong, and thereafter fired at the temperature and for the time necessary to fully develop high compressive strength and high temperature resistance therein.
177	Hollow pellets and method of making same	US41901973	1973-11-26	US3875273A	1975-04-01	MARTIN ROBERT M
In accordance with the invention, hollow pellets having outer surfaces of one material and inner surfaces of another material are manufactured by dropping drops of liquid into a bed of powder containing the material of which it is desired to make the outer surface portions of the hollow pellets and preferably also a binder, the liquid containing the material of which it is desired to make the inner surface portions of the hollow pellets. When the drops of liquid fall into the powder, the powder immediately forms a spherical shell around each drop so as to form the hollow pellets upon vaporization of the liquid. It is preferred that the powder additionally contain some sodium bicarbonate or the like and that the liquid be an aqueous acid solution such that, upon initial formation of the spherical shell of powder, the acid reacts with the sodium bicarbonate to generate carbon dioxide which causes the spherical shell to expand while yet additional powder coalesces onto the shell. This results in hollow pellets wherein the inner surfaces are formed from material included in the liquid and the outer surfaces are formed from material included in the bed. The method is particularly useful for the manufacture of pellets wherein at least the outer surfaces are of ceramic, there being a firing operation on the pellets after removal from the powder bed so as to sinter the ceramic to monolithic structure.
178	Hollow pellets and method of making same	US41901873	1973-11-26	US3875272A	1975-04-01	MARTIN ROBERT M
In accordance with the invention, high strength hollow pellets are manufactured by first forming hollow pellets the shell of each of which comprises particulate material, and thereafter providing the shell with at least an outer portion of increased density. The preferred embodiments include the step of dropping drops of liquid into a bed of powder of the material of which it is desired to make the pellets and preferably also a binder. When the drops of liquid fall into the powder, the powder immediately forms a spherical shell around each drop so as to form the hollow pellets upon vaporization of the liquid. It is preferred that the powder additionally contain some sodium bicarbonate or the like and that the liquid be an aqueous acid solution such that, upon initial formation of the spherical shell of powder, the acid reacts with the sodium bicarbonate to generate carbon dioxide which causes the spherical shell to expand while yet additional powder coalesces onto the shell. After the pellets are thus formed, the density of at least the outer portions thereof is increased, this by compaction, by applying to the pellets an outer layer of powder which is of smaller particle size than that used for the bed, or by a combination of adding such an additional layer plus compaction. The method is particularly useful for the manufacture of high strength ceramic pellets, there being a firing operation on the pellets after they are formed as aforesaid so as to sinter the ceramic to monolithic structure.
179	Hollow pellets and method for making same	US38362873	1973-07-30	US3875271A	1975-04-01	MARTIN ROBERT M
In accordance with the invention, hollow pellets are manufactured by dropping drops of liquid into a bed of powder of the material of which it is desired to make the pellets and preferably also a binder. When the drops of liquid fall into the powder, the powder immediately forms a spherical shell around each drop so as to form the hollow pellets upon vaporization of the liquid. It is preferred that the powder additionally contain some sodium bicarbonate or the like and that the liquid be an aqueous acid solution such that, upon initial formation of the spherical shell of powder, the acid reacts with the sodium bicarbonate to generate carbon dioxide which causes the spherical shell to expand while yet additional powder coalesces onto the shell. The method is particularly useful for the manufacture of ceramic pellets, there being a firing operation on the pellets after removal from the powder bed so as to sinter the ceramic to monolithic structure. The spheres have good mechanical strength particularly in that the inner wall surfaces have a webbed structure and the webbing contributes to the strength.
180	Granulating tacky elastomeric materials	US3687699D	1968-11-29	US3687699A	1972-08-29	PROSSER ROBERT M; THOMAS NELSON A
TACKY, ELASTIC, AGGLOMERATIVE SOLID MATERIALS SUCH AS CHLOROPRENE POLYMERS ARE GRANULATED BY MECHANICAL CUTTING IN PROCESSES IN WHICH (1) WATER IS SPRAYED INTO THE VICINITY OF THE CUTTING ACTION AT THE RATE OF FROM .02 TO .15 POUND PER POUND OF TACKY MATERIAL, (2) ENOUGH AIR, HAVING A RELATIVE HUMIDITY LESS THAN 60% AND A TEMPERATURE NOT OVER 20*C. IS BROUGHT INTO CONTACT WITH THE SPRAY TO EVAPORATE SUBSTANTIALLY ALL OF IT, AND (3) SIMULTANEOUSLY A DUSTING AGENT SUCH A TALC IS BROUGHT INTO CONTACT WITH THE TACKY MATERIAL BEING CUT, AT THE RATE OF .02 TO .10 POUND PER POUND OF TACKY MATERIAL.

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