Powder particle sorting device and sorting method

A sorting device and particle technology, used in solid separation, chemical instruments and methods, classification, etc., can solve the problems of small investment, large processing capacity, poor sanitary conditions, etc., and achieve the advantages of reducing friction, efficient separation, and equipment protection. Effect

Pending Publication Date: 2018-10-23
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of strong subjectivity, high labor intensity, poor sanitary conditions and low efficiency of mechanical powder particle sorting in the existing artificial powder particle sorting, and to prov

Method used

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  • Powder particle sorting device and sorting method
  • Powder particle sorting device and sorting method
  • Powder particle sorting device and sorting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This embodiment relates to the sorting of glass microsphere particles:

[0068] In this example, two kinds of glass beads with different particle sizes (>148μm and figure 1 The device shown performs particle sorting. The structure of the sorting device adopted is as follows: the storage bin 1 is a conical structure with a height of 120mm, a half top angle of 30°, and an outlet diameter of 10mm. Inclined plate 2 is 478mm in length and 15mm in width, and the angle between it and the horizontal plane (inclination angle of inclined plate ) is 15°, and the internal friction angle of glass beads is 23.2°. The mixed particles (powder particles 9) flow out from the storage bin 1, and first form an accumulation layer 5 on the swash plate 2, and then the powder particles flowing out flow on the accumulation layer 5, and form a fluidized layer 4 with a thickness of 7.0 mm. The surface velocity of the fluidized layer 4 is 1.296m / s, gradually decreasing to the bottom surface velo...

Embodiment 2

[0071] This embodiment relates to the separation of pulverized coal particles:

[0072] In this example, two coal powders with different particle sizes (>258μm and figure 1 The device shown performs particle sorting. The structure of the sorting device adopted is as follows: the storage bin 1 is a conical structure with a height of 120mm, a half top angle of 30°, and an outlet diameter of 10mm. The slant plate 2 is 478mm long and 15mm wide, and the angle between it and the horizontal plane (the inclination angle of the slant plate ) is 25°, and the internal friction angle of coal powder particles is 33°. The mixed particles (powder particles 9) flow out from the storage bin 1, and firstly form an accumulation layer 5 on the inclined plate 2, and the powder particles flowing out subsequently flow on the accumulation layer 5, forming an upper layer dominated by large particles and a lower layer composed of small particles. A fluidized bed 4 with a thickness of about 6.0 mm ma...

Embodiment 3

[0075] This embodiment relates to the secondary sorting of pulverized coal particles:

[0076] The powder particle that obtains in receiving bin A, B in embodiment 2 adopts such as figure 2 The schematic flow chart shown is for secondary sorting to obtain products with better sorting effects.

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Abstract

The invention discloses a powder particle sorting device and a sorting method. The powder particle sorting device comprises a storage silo and N groups of sorting units (N is larger than or equal to 1). Each group of sorting unit comprises one inclined plate and two material receiving bins connected in parallel; the storage silo is used for storing powder particles to be sorted; in each group of sorting unit, the inclined plate is used for enabling the powder particles flown out from the storage silo to form a stacking layer on the surface of the inclined plate, and enabling continuously flown-out powder particles to form a flowing layer above the stacking layer when the stacking angle reaches to an angle of repose; each two material receiving bins are used for receiving the powder particles flown out from the flowing layer of the corresponding inclined plate at different flow speed ranges; and the vertical interval between a discharge hole of the storage silo and each inclined plate is not lower than the sum of the maximum thickness of each stacking layer and the thickness of each flowing layer. The sorting method is carried out by utilizing the sorting device. The device and themethod provided by the invention can be used for effectively sorting and collecting the powder particles, and have the advantages of simple structure, good separation effect, multiple functions, portability, high efficiency, durability and the like.

Description

technical field [0001] The invention belongs to the field of powder technology, relates to the technical field of powder particle detection and classification equipment, in particular to a powder particle sorting device and a sorting method. Background technique [0002] Powder is an aggregate composed of numerous relatively small granular substances. Many different substances in nature exist in powder state, such as soil in nature, cement, sand and gravel in building materials industry, a large number of raw materials in industry (such as coal powder), coatings, abrasives, pigments, additives and Catalysts and a large number of industrial products (such as plastics, fibers), etc. The research on powder is a research hotspot in the world today, which has important basic scientific significance and engineering application value. [0003] The application of powder in industry often requires its precision and purity to reach a certain value. In some cases, it is necessary to ...

Claims

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Application Information

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IPC IPC(8): B07B13/10B07B13/16B07B13/18
CPCB07B13/10B07B13/16B07B13/18
Inventor 陆海峰刘海峰郭晓镭龚欣梁钦锋许建良王宁生于广锁王辅臣王亦飞陈雪莉代正华李伟锋王兴军郭庆华刘霞赵辉龚岩沈中杰赵丽丽
Owner EAST CHINA UNIV OF SCI & TECH
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