155results about "Pneumatic tables" patented technology

The invention discloses a coal dressing method and system of four-product jigging primary cleaning and secondary head coal small simplified heavy medium reelecting. The invention is a coal dressing method and system that selects the secondary head coal product through the four-product jigging technique and then reelects the secondary head coal with small simplify heavy medium separation technology. The adoption of the invention to select coal is characterized by less total investment, simpler system and lower operational expense, which can improve the stability of the system, reduce the powerconsumption, simplify the managing and maintaining work. The method can be easily realized with present technical merits, which is beneficial to be popularized in the middle and small coal washeries where the management level is low and if the method is used in oversize coal washeries, the cost for washing is lower.

The present invention discloses a combined dry sorting bed, the sorting bed is arranged with an inclination, and the inclination between the longitudinal extending of said bed surface and horizontal plane is from −2° to +4°, and the inclination between the lateral extending of said bed surface and horizontal plane is from 0° to +15°. By reasonable setting of the angle of inclination, the material being separated spiral overturn continuously on the sorting bed under the influence of the rising air currents and the force of vibration, with the result that the light material in the upper layer is separated under the influence of weight. The material is sorted for many times during the circularly movements, the product with different content of ash can be obtained. This invention also relates to a combined dry sorting device that comprises frame, sorting bed, vibrator and air supply device. This invention further relates to an apparatus for separation that comprises a feeding device, an air supply and dedusting device and a separating device, the above mentioned sorting bed is used in the sorting device and apparatus, therefore different products with vary quantity of ash are generated according to the gravity of material, and the accuracy of separation is improved.

The invention relates to a process for processing a complex gold ore containing copper and arsenic. The complex gold ore containing copper and arsenic is processed by combining the steps of reselecting, floating, cyaniding and leaching, calcinating arsenic ore concentrate. The process of the invention comprises the following steps: grinding the raw ore to certain granularity, by using the specific gravity difference of mispickel, copper sulphide and gold, separating mispickel and coarse monomer gold with high specific gravity (gold loading or gold unloading) by using reselection, enriching middling by using flotation to obtain (gold loading or gold unloading) copper concentrate, leaching tailing (if gold-loading gangue ) by cyaniding and stirring to extract fine particle gold in gangue, reselecting arsenic concentrate to calcinate, recovering As2O3 by using low temperature cloth bag arsenic collection technology through air cooling or water cooling, and leaching calcine (if gold-loading calcine) by stirring and cyaniding. The process of the invention has simple device, obtains high technical index, and provides good economic benefit to mine.

A vibrating screen is provided for separating excess water from particulate materials such as sand, gravel, iron ore, sludge or other particulate material and/or for grading, classifying or sorting particulate material by size. The vibrating screen includes a frame upon which is mounted a deck having a plurality of apertures therein, the frame being mounted on a base and being provided with vibration generating means for imparting vibration to the deck, wherein the frame includes pair of substantially parallel side walls between which the screen is mounted, each side wall including a pair of spaced apart side members defining outer faces of the side wall, at least one intermediate member being located between the side members, wherein the at least one intermediate member incorporates a plurality of apertures and/or cut-outs therethrough.

Processing byproduct material from a direct reduction process of iron ore to reclaim iron and other materials from the byproduct. The systems and methods employ gravity separation tables to separate the iron from other byproduct material constituents. The byproduct material constituents may be size reduced, processed to remove dust, and sized prior to processing by the gravity separation.

The invention relates to a method and system for the environmental remediation of materials that are contaminated with heavy minerals, such as heavy metals. The invention finds utility in removing heavy minerals from materials such as soils, sediments, mine tailings and ores. The invention provides a means for removing heavy minerals from contaminated materials without the use of water while reducing the generation of dust. Thus, the invention provides an environmentally friendly method for the remediation of sites that are contaminated with heavy minerals.

A classifying fluid bed granulator includes a granulation chamber including a fluidizing air chamber (7) with a bed floor (10), a ceiling (3c), an end wall (3d), and a feed inlet (5), a seed inlet (6), an air outlet (4) defined by walls (3a, 3b) and an outlet (9) for produced granules. The granulation chamber is divided into an agglomeration and seed control section (1) and a granulation and classification section (2), and the section (2) includes one or more consecutive compartments having an asymmetric design.

The present invention discloses a coke and oxygen carrier particle separation device and method. The device is composed of an oxygen carrier recovery zone, a turbulence separation zone and a coke recovery zone. A mixture of coke and oxygen carrier particles enters into a fluidized bed, and the coke and oxygen carrier particles are separated in turn by a free space, turbulence plates and a divergent separation section in the turbulence separation zone. Ultimately, coke particles with a small specific gravity are discharged from the lower end of a cyclone separator and collected, and oxygen carrier particles with a large specific gravity fall into an oxygen carrier recovery tube at the lower end, thereby realizing separation and reutilization of the coke and oxygen carrier particles.

The invention discloses an auto-medium gas-solid two-phase fluidized bed dry coal separator based on bed layer partition plates. The auto-medium gas-solid two-phase fluidized bed dry coal separator comprises a feed system, a gas-solid fluidized bed and a sorting product collection system. The feed system is connected with the gas-solid fluidized bed to achieve feeding on the gas-solid fluidized bed. The sorting product collection system is connected with the gas-solid fluidized bed to achieve sorting collection. The gas-solid fluidized bed comprises an air distribution plate. Air blowers are arranged below the air distribution plate, a dust isolation plate is arranged above the air distribution plate, and exhaust fans are arranged above the dust isolation plate. The air distribution plate is arranged obliquely, the upper portion of the air distribution plate is used for receiving fed materials, the multiple parallel bed layer partition plates are arranged between the lower portion of the air distribution plate and the dust isolation plate, and the bed layer partition plates extend downwards to the sorting product collection system. According to the auto-medium gas-solid two-phase fluidized bed dry coal separator, the density variation between coal and impurity gangue is utilized, the coal, the impurity gangue and the like are fluidized in the fluidized bed so as to be stably layered, and finally the coal, the impurity gangue and the like are separated. The auto-medium gas-solid two-phase fluidized bed dry coal separator has the beneficial effects that sorting efficiency and sorting precision are high; the same coal sorting density level range adaptability is large; the equipment investment and construction cost is low; operation and maintenance are convenient; energy consumption is low; dependence on water sources is avoided; and high efficiency and energy saving are achieved.

A fluidized powder heat treatment classification assembly includes a gas source. A fluidized bed is connected to the gas source via a metered connection. The fluidized bed includes a first output connected to a powder classifier via at least a first valve. The powder classifier includes a catch container operable to decelerate a gas flow from the output and operable to catch particles entrained in the gas flow.