Class 34/386 - Mixing or grinding

Subclass of Class 34 - Drying and gas or vapor contact with solids
Definition: Process wherein the nondrying treating consists of stirring
No. of patents: 28
Last issue date: 11/22/2011

Number	Title	Issue Date
8061057	Waste treatment system A system for removing water from sludge is disclosed. The system (100) includes: de-watering (102) sludge comprising an output from a wastewater treatment system to form a semi-solid sludge cake; dispensing (104) the sludge in a sludge hopper an...	11/22/2011
7028414	Device for continuous drying of material The invention relates to a device for device for continuous drying of material, particularly sewage sludge, which has a belt 2, particularly a filter belt, on which the material is conveyed. It is characterised by a distribution screw 4 being mounted a...	04/18/2006
7000333	Animal byproduct conversion system and method A system for recovering nutrients from animal byproducts includes a grinder, a separator, and a dehydrator. The grinder is adapted to reduce the animal byproduct into smaller particles. The separator is adapted to separate the animal byproduct into water, oil and so...	02/21/2006
6757987	Method for producing powder paints A method for producing powder paints which comprises the steps of: a) preparing a paste comprising at least one thermosetting plastic resin, at least one curing agent, at least one pigment and water and making the paste flow in the form of a thin layer and un...	07/06/2004
6754977	Method and apparatus for drying long fibre hay A method and apparatus for drying long fiber hay. A first step involves providing round bales of long fiber hay. A second step involves separating the bales to form a loose mass of long fiber hay. A third step involves feeding the loose mass of long fiber hay into a...	06/29/2004
6745493	System and method for drying toner particles A method of drying wet toner particles includes adding different sized wet toner particles to a dryer drying chamber and drying each of the wet toner particles for a drying time TD. The drying time TD can vary for each toner particle and is pro...	06/08/2004
6502326	Method and apparatus for dewatering fiber cells A method and apparatus for reducing the moisture content bound by capillarity in fiber cells of solid materials containing carbon. The material is ground and screened to form a loose sheet of the solid materials and/or sludges. The material is processed b...	01/07/2003
6237246	Treating sewage or like sludge There is disclosed a process for treating sewage sludge or similar organic sludge in which dewatered sludge cake and an alkaline admixture are mixed and then dried under pasteurization conditions utilizing heat from the exothermic reaction with the alkali...	05/29/2001
6233843	Wiper for a floor sweep assembly of a grain dryer associated method A grain dryer includes a wall assembly having (i) an inner wall and an outer wall which defines a grain flow path therebetween, and (ii) a discharge slot defined in the wall assembly through which grain may flow. The grain dryer further includes a grain s...	05/22/2001
6073367	Floor sweep assembly for a grain dryer having support members and wipers which are spaced apart from each other by spacing members at intersections formed therebetween A grain dryer includes a wall assembly having (i) an inner wall and an outer wall which defines a grain flow path therebetween, and (ii) a discharge slot defined in the wall assembly through which grain may flow. The grain dryer also includes a grain shel...	06/13/2000
5765293	Method for processing paint sludge A process for treating paint sludge in which previously cured paint sludge powder is used as a diluent and mixed with wet paint sludge. The paint powder/sludge mixture is agitated and heated to cure the paint sludge. Processing can occur either continuous...	06/16/1998
5692317	Method and facility for dehydrating plants particularly, for dehydrating forage A method and a facility for dehydrating plants, particularly for dehydrating forage. The method consists in introducing the forage to be dehydrated in a drier with a retention time and a temperature that are suitable to achieve the at least partial drying...	12/02/1997
5575085	Apparatus and method for controlling the rotary airlocks in a coal processing system by reversing the motor current rotating the air lock An improvement to a coal processing system where hard materials found in the coal may cause jamming of either inflow or outflow rotary airlocks, each driven by a reversible motor. The instantaneous current used by the motor is continually monitored and co...	11/19/1996
5548906	Vaporizing and concentration drying apparatus and method Vaporizing and concentration drying apparatus and method are disclosed. The apparatus and method prepare good quality of condensed water and save evaporation energy and are wide used in making contaminated waste water become distilled water and in purific...	08/27/1996
5515620	Method and apparatus of rotatable drum dryer with flights releasably secured in different orientations An apparatus and method for operating a rotatable drying drum are disclosed herein. The drying drum has a burner for generating hot gases of combustion for flow through the drum to dry aggregate. The drum includes identical drying flights each having a ge...	05/14/1996
5477623	Drying apparatus A drying apparatus for drying a moist material includes a container having an opening for receiving the material therein. A top cover is provided for closing the opening of the container. A heater and fan are provided on the bottom of the top cover so as ...	12/26/1995
5456024	Method of and apparatus for the treatment of refuse or garbage especially household refuse An apparatus and a process for treating household refuse are disclosed. Household refuse or garbage is comminuted, dried and mixed with granular mineral substance, preferably sand, at a temperature of up to 1000° C. and the mixture is homogenized and deg...	10/10/1995
5375343	Evaporator for drying sludges An evaporation device for drying sludges includes a heatable, hollow cylindrical, approximately horizontally oriented evaporator provided at one end with a product inlet and at the other end with a product outlet while in its product-charged interior an e...	12/27/1994
5347725	Method and apparatus for vacuum drying colloidal substances A colloidal substance is injected into a vacuum chamber to be dehydrated therein. The dehydrated substance is extracted from the vacuum chamber by a screw extruder disposed at a bottom of the vacuum chamber. A gas resulting from the dehydration is drawn f...	09/20/1994
5251383	Apparatus for and a method of disposing of wet sludge Apparatus for disposing of wet sludge by conversion to a substantially dry product during grinding of the wet sludge in a drying atmosphere which promotes the separation of the grindings into coarse fractions and fine fractions so that the coarse fraction...	10/12/1993
5191723	Apparatus and method for recovering spent lime for use as a nutritional flowing agent for poultry and animal feeds An apparatus and method to recover spent lime from various manufacturing processes, such as sugar manufacturing from sugar beets and sugar cane, for use as a nutritional flowing agent for poultry and animal feeds, comprises a first holding bin for receivi...	03/09/1993
4501446	Removal of fine-grained sediments from water bodies A method for removing fine-grained sediments from flowing or standing bodies of water. The sediment is dredged from the bottom of the body of water. The dredged sediment is dewatered and classified in a sieve plant. At least a fine-grained admixture mater...	02/26/1985
4245396	Process for drying and granulating sewage sludge A process for drying and granulating sewage sludge. Wet sewage sludge is at least partially dried in a thermal drying zone, which preferably is a toroidal dryer. A plasticizer is added to the dried sludge and the resultant mixture is extruded to form fert...	01/20/1981
4237618	Process for mechanically dewatering sewage sludge A process for mechanically dewatering fibrous organic wastes such as sewage sludge. The undewatered waste is passed into the first end of a cylindrical dewatering zone having a porous outer wall. A helical blade rotated within the dewatering zone pressuri...	12/09/1980
4212112	Method for drying solid carbonaceous materials The material to be dried, such as coal, is mixed with an aromatic liquid, such as benzene, which removes a portion of the available water from the coal. The mixture of water and benzene, called an azeotrope, has a minimum boiling point relative to the sur...	07/15/1980
4209911	Method and apparatus for drying a moisture-containing particulate material This invention relates to a process and apparatus for drying moisture-containing particulate materials. The process comprises feeding the particulates to a drying vessel containing therein a hydrocarbon liquid maintained at a temperature sufficiently high...	07/01/1980
4128946	Organic waste drying process A process for drying organic waste, such as sewage sludge, by contacting the organic waste with hot vapors wherein the dried material is extruded to form compacted granules having good flow characteristics and suitable for application by commercial fertil...	12/12/1978
4122208	Method and an apparatus for producing and drying a meal of cooked animal material, especially fish and fish pulp In a method and an apparatus for producing and drying a meal of cooked or heat treated animal material, especially fish or fish pulp, the cooked fish pulp is pressed for separation of liquid. After centrifuging and concentration, if desired, the separated...	10/24/1978

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Class 34/386 - Mixing or grinding