序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 Integrally formed heavy media pulping column US10095638 2002-03-12 US20030197079A1 2003-10-23 Larry A. Watters; Daniel S. Placha
In a coal preparation plant which receives a raw coal feed and separates the raw coal feed into a clean coal feed and a refuse feed, an apparatus is provided for use therein. The inventive apparatus mixes the sized raw coal feed particles with a slurry of media and water used for separating the raw coal feed into clean coal and refuse. The inventive apparatus includes a pulping column integrally designed with the discharge chute of a deslime screen and the drain section underpan of clean coal and refuse screens. The pulping column having a coal inlet receiving the sized raw coal directly from the deslime screen, a media inlet receiving the slurry of media and water directly from an underpan of at least one of the refuse screen and the clean coal screen, and an outlet discharging the mixture of sized raw coal and slurry. The pulping column mixes the sized raw coal and the slurry of media and water according to a select proportion, and it is then pumped to a heavy media separation section of the coal preparation plant.
102 Process for controlling a sand and gravel sorting and sizing device US230596 1999-03-30 US6142311A 2000-11-07 Rolf Korber
In a process for controlling the product composition in an apparatus for sizing and sorting mineral raw materials, wherein the apparatus comprises at least one chamber, a sizing separation of the sand fraction into a sand product mass and into a micro particle sand fraction to be discharged via the overflow, is additionally performed in the chamber by means of the level of the fluidized bed in the chamber. For the adjustment of a pre-set concentration of micro particle sand in the sand product mass, the fluidized bed level is controlled such that the micro particle sand fraction in the supplied raw material mass is divided, by means of the fluidized bed, as a function of the pre-set admissible concentration into a micro particle sand fraction to be discharged into the sand product mass and a micro particle sand fraction to be discharged via the overflow. For all geometrically similar constructive designs of the apparatus, the fixed yield distribution, defined as a ratio of the micro particle sand fraction to be removed to the micro particle sand fraction in the supplied raw material mass, is predetermined as a function of the fluidized bed level in the form of a calibration curve as a parameter specific to the apparatus. Based on the calibration curve, the fluidized bed level, correlated to the required yield distribution as a function of the determined micro particle sand content in the supplied raw material mass, is derived as a set value for the level adjustment of the fluidized bed.
103 Dual outlet pulp level control system for flash flotation devices US846775 1997-04-30 US5909022A 1999-06-01 Peter Bourke; Jouko Kallioinen
A flash flotation device (1) comprises a tank (2) to contain slurry (3) incorporating minerals to be extracted, a feed inlet (25) for admission of slurry (3) into the tank (2), agitation means (10) to agitate the slurry (3) within the tank (2), aeration means to aerate the slurry (3) whereby floatable minerals in suspension form a surface froth for removal via froth lip (29), a bottom outlet (26) for withdrawal of relatively coarse or dense components of the slurry (3) from the tank (2), and a side outlet (28) to regulate the level of slurry (3) in the tank (2).
104 Froth flotation process for deinking wastepaper using multiflow pressurized deinking module US834606 1997-04-14 US5840156A 1998-11-24 Richard P. Hebert; David B. Grimes
A mixture of air and paper stock made from recycled paper from which the ink particles have been chemically released is injected into a cylindrical processing vessel. Added surfactants create a foam from the air as it rises through the stock and cause the ink particles to adhere to the air bubbles, resulting in a foam containing a concentrated fraction of the ink particles with some included fibers. The foam rises to the top of the vessel, and carries with it ink particles. Additional air injection ports can be used to increase the amount of foam generated and the amount of ink removed. Flow of stock and foam from the vessel can be controlled by adjusting valves on the stock and foam outlets. Flotation sensors allow the foam head to be maintained at the stock level by controlling the rate foam is withdrawn through the foam outlets.
105 Method and apparatus for removing sand from waste water loaded with sand and organic substances US596168 1996-04-10 US5811016A 1998-09-22 Franz Zierler
There are described a method of and an apparatus for removing sand from waste water loaded with sand and organic substances which is set forth in circulation in a vertical container (1) in which the organic substance moves upward to an overflow (13), while the sand sinks downward toward a discharge conveyor (3) connected to the container (1) from beneath, and is discharged after a certain settling period. To achieve a substantial separation of the sand and the organic substances, the settled sand is stirred by an agitator, with simultaneous rinsing with fresh water delivered to the container bottom region, and is discharged in an amount, which insures a predetermined minimal height of the settled sand.
106 Process and apparatus for non-agitated flotation of substances with a low degree of hydrophoby and/or low stability in the foam structure, in particular of salt mixtures US434765 1995-05-04 US5542546A 1996-08-06 Jost Gotte; Harald Schnez; Arno Singewald
A process and apparatus for pneumatic flotation include thinning a conditioned and gassified pulp and then forming them in the separation chamber into an enclosed free jet.
107 Continuous cycle apparatus for separating precious metals from concentrate US41007 1993-03-31 US5287975A 1994-02-22 Daniel G. Chumley; Michael C. Basford
A continuous cycle apparatus for separating particles of precious metals from concentrate having a funnel-shaped hopper. A pump circulates a portion of the water from a sump into the hopper to create a vortex of water and concentrate such that less dense material tends to overflow from the hopper into the sump. The pump also circulates a portion of the water from the sump through a tube connected to a bottom opening in the hopper to transport concentrate and water to a sluice box which collects particles of precious metals contained in the slurry. The rate at which water and concentrate are drawn from the hopper is adjustably controlled by a metering rod located in the tube immediately below the bottom opening in the hopper. The water and remaining particles drain from the sluice box back into the hopper to complete the cycle.
108 Concrete aggregate collecting apparatus US629143 1990-12-18 US5082553A 1992-01-21 Masao Tanii
An aggregate collecting apparatus. A meter which measures the gross weight of the rotary drum is linked to the speed change gear for the rotary drum in such a manner as to be operationally connectable therewith so that the speed of rotation of the drum can be varied in accordance with variations in the amount of sludge charged in the drum. The upstream and downstream edges of a trommel in the rotary drum are intermittently twisted in each of opposite directions so that gravel clogging the trommel is automatically removed.
109 Benefication apparatus and process for land and seabed mining US649157 1991-02-01 US5057211A 1991-10-15 George P. Baummer
A mineral benefication apparatus having a housing, including opposed stratification hoppers arranged at its lower periphery. Particulate material and water are introduced separately into the housing, which is then oscillated to separate a portion of the particulate material. The apparatus can be modified to operate either on land or in a sea environment.
110 Heavy medium separation tracer element US133462 1987-12-15 US4857172A 1989-08-15 Noel J. Pipkin; Michael S. Hunt
A tracer element for use in determining the efficiency of a heavy medium separation method which is made of aluminum, an aluminum/zinc alloy or an aluminum/magnesium alloy.
111 Liquid separating apparatus US702239 1985-01-28 US4659461A 1987-04-21 Noel Carroll
Liquid separating device apparatus particularly for separating oil and water components from a mixture thereof. The apparatus includes a tank (50) for the liquid and two banks (62, 64) of cyclone separators for separating oil and water from the liquid in the tank. A control circuit (102) receives input from height sensors (180, 182, 184, 186) sensitive to the height of liquid in the tank (50). Circuit (102) is responsive to the sensed liquid height to vary the flow rate of liquid through the apparatus by varying the rate of operation of a pump (60) which pumps liquid from the tank (50) to the banks (62, 64), by controlling a valve (66) to direct the liquid either to one or to both the banks (62, 64) and to constrick flow from the banks (62, 64) by varying the resistance to flow through variable chokes (68, 70) which receive outflow from the banks.
112 Blending of fluid materials US345407 1982-02-03 US4436433A 1984-03-13 George D. Barnes
Particulate material such as sand is classified in two or more classifying devices (13 and 15) which operate on the principle of "hindered settling" each to provide a coarse underflow fraction and a fine overflow fraction. A chosen blend 12 of the underflow fractions is provided by pneumatic control circuitry (FIGS. 2,5,6) which actuates flow control valves (14 and 16) to open, by amounts in accordance with a chosen blend ratio, only when there is sufficient material available for blending.
113 Separation of tobacco fines from sand US16663571 1971-07-27 US3837481A 1974-09-24 HEITKAMP N; STUNGIS G; MERKER S
Tobacco fines, mixed with sand, are puffed employing microwave energy to a size at least sufficient to be used directly in cigarette manufacture and are then separated from the sand for use in tobacco products. Other botanicals may be similarly treated.
114 Method and apparatus for sifting out fine particles by utilizing supersonic vibration US3756400D 1971-08-09 US3756400A 1973-09-04 KAMMORI O; TAGUCHI I
Method and apparatus for sifting out fine particles according to their original sizes, into which apparently larger-sized particles formed by the cohesion of such fine particles have been split by applying supersonic vibration in the solution, such sifting-out being carried out by applying supersonic vibration also to a set of the sieves of one or more mesh sizes.
115 Froth height and liquid slurry level determination for a floatation cell US3474902D 1968-09-26 US3474902A 1969-10-28 PUTMAN RICHARD E J
1287274 Froth flotation WESTINGHOUSE ELECTRIC CORP 3 Sept 1969 [26 Sept 1968] 43653/69 Heading B2H [Also in Division G3] The supply of frothing agent to a floatation separator is automatically controlled in dependence on a computation of the thickness of the layer of froth on the liquid from signals corresponding to contact of a moving probe with the upper and lower surfaces of the layer. In Fig. 1, the electrical probe 16 is withdrawn and reinserted periodically by an electric motor 22 and the thickness is determined by a computer 36 which regulates the supply of frothing agent (e.g. pine oil) at 24 to maintain the thickness constant. Computer 36 also controls an outlet valve 33 to maintain the slurry at such a level that only froth, with the separated minerals, overflows a weir at 15. Probe 16 may be cleaned between insertions. In a modification, a number of cells are mounted on an adjustable ramp so that froth cascades from cell to cell. The froth thickness and slurry level are controlled in each of a number of cells sequentially by a computer which also controls the outlet of slurry from the lowest cell to correct the slurry level in it, and the slope of the ramp to maintain a desired relationship between the slury levels in all the cells.
116 Method and apparatus for controlling spiral concentrators US20875762 1962-07-10 US3235079A 1966-02-15 HENDRICKSON LUTHER G
117 Control system US63049045 1945-11-23 US2584076A 1952-01-29 WURZBACH HUGH E
118 Hydraulic particle separation apparatus for placer mining US15461272 2017-03-16 US10065197B2 2018-09-04 John Richmond; Michael Lee Gray
A hydraulic particle separator is described. The particle separator comprises a main body having a top, a bottom, and a wall enclosing an interior cavity. At least one feed port is disposed on the top of the main body to introduce crude particle mixtures. A partition disposed within the cavity separates the cavity into a lower chamber and an upper chamber. The partition has at least one orifice for fluidic communication between the upper chamber and lower chamber. One or more grooves extend vertically along the interior surface of the wall. At least one tangential flow inlet port is disposed along the wall of the upper chamber above the partition.
119 Material separation and conveyance using tuned waves US15263346 2016-09-12 US10046367B2 2018-08-14 Spencer Allen Miller; Reza Khoshnoodi
Systems, methods and computer readable media for material separation and conveying using tuned waves are disclosed.
120 Beach detection sensors for vibratory separator US14317903 2014-06-27 US10001464B2 2018-06-19 Edward Kronenberger; Venkata Amaravadi; Colin Stewart
An apparatus including a screen capable of separating solids from a liquid-solid mixture and a first probe disposed beneath the screen. The first probe is provided to determine a position of a beach between the liquid-solid mixture and separated solids. The apparatus may measure a property of a local volume of a probe disposed beneath a first separator deck. The probe may then send a first signal to database. Based on the signal a location of a beach may be determined.
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