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Soil crushing device with screening function

A crushing device and screening technology, applied in the field of environmental remediation, can solve the problems of inability to achieve powder or finer particle size, inability to mix the remediation agents with soil, and inability to guarantee the remediation effect, so as to improve the crushing rate and efficiency, The effect of improving soil fragmentation efficiency and promoting transformation

Inactive Publication Date: 2019-12-20
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Soil pollution has a great impact on human production and life. At present, the soil pollution area of ​​cultivated land in my country accounts for about one-fifth of the cultivated land area in my country. The control of soil pollution mainly includes physical, chemical, biological or combined methods. Soil control In the remediation process, it is almost always necessary to pre-treat the soil to break the soil to be treated. If the contaminated soil is remediated, due to the uneven particle size of the soil, the remediation agent cannot be effectively mixed with the soil, and the remediation effect cannot be guaranteed. The existing crushing equipment can only crush the dried blocky contaminated soil into small pieces, and cannot achieve powder or finer particle size. In addition, the large-grained soil crushed by conventional equipment still needs to be repaired
At the same time, some soil remediation and treatment projects (such as solidification and stabilization treatment) have requirements on the particle size of the soil. Conventional pretreatment crushing equipment can only be crushed, and the soil particle size cannot be guaranteed.

Method used

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  • Soil crushing device with screening function
  • Soil crushing device with screening function
  • Soil crushing device with screening function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1-6 As shown, the soil crushing device with screening function includes:

[0032] The casing 10 has a feed hopper 20 at the top,

[0033] The partition assembly 60 is arranged in the box body 10 to divide the inside of the box body 10 into upper and lower chambers. The inner wall of the upper chamber of the box body 10 is surrounded by an air guide 50, and the air guide 50 is connected to the box body through the air delivery pipe 41 10 outside the steam generator 40 is connected, and the box body 10 is provided with an air pump 30 for extracting gas in the upper chamber of the box body 10,

[0034] The crushing assembly 70 is located in the lower chamber of the box body 10. The crushing assembly 70 is driven by a motor 81 to crush objects. A sieve plate 80 is provided below the crushing assembly 70 for screening the crushed particles. One side of the box body 10 is provided with a The particles screened by the sieve plate 80 are discharged.

[0035] The ...

Embodiment 2

[0048] When the soil crushing device with screening function of the present invention is actually used:

[0049] The electromagnet 63 on the rotating plate 61 of the partition assembly 60 is controlled by the control panel 11 to be energized to separate the space in the box body 10, and the steam generator 40 is controlled to input steam to the box body 10 to preheat the upper chamber of the box body 10, and steam The input temperature and vapor pressure are determined according to the volatile liquid content of the treated soil. At the same time, the air pump 30 is turned on to extract the gas in the box 10 to be discharged, and then the soil block to be crushed is put into the upper cavity of the box 10 through the feeding hopper 20. Indoors, the steam generator 40 continuously inputs steam to steam extract the soil and reduce the volatile liquid content of the soil, and then controls the energizing current of the electromagnet 63 to expand the gap between the two rotating pl...

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Abstract

The invention discloses a soil crushing device with a screening function and belongs to the technical field of environment repair. The soil crushing device comprises a box body, a partitioning assembly and a crushing assembly, wherein a feeding hopper is arranged on the top; the partitioning assembly is arranged in the box body to partition the inner side of the box body into upper and lower cavities, a gas guide part is arranged around the inner wall of the upper cavity of the box body and is connected to a steam generator arranged on the outer side of the box body through an air conveying pipe, and a gas sucking pump for sucking gas in the upper cavity of the box body is arranged in the box body; and the crushing assembly is arranged in the lower cavity of the box body and is driven by amotor to rotate to crush an object, and a screen plate is arranged below the crushing assembly for screening particles of crushed objects. The soil crushing device screens and crushes bulky cohesivesoil simultaneously. In order to improve the crushing efficiency, the crushing efficiency is improved by reducing the content of volatile liquids in soil by way of steam extraction, and the soil is repaired. The processed soil particles can be in full contact with a chemical repairing agent.

Description

technical field [0001] The invention belongs to the technical field of environmental restoration, and in particular relates to a soil crushing device with a screening function. Background technique [0002] Soil pollution has a great impact on human production and life. At present, the soil pollution area of ​​cultivated land in my country accounts for about one-fifth of the cultivated land area in my country. The control of soil pollution mainly includes physical, chemical, biological or combined methods. Soil control In the remediation process, it is almost always necessary to pre-treat the soil to break the soil to be treated. If the contaminated soil is remediated, due to the uneven particle size of the soil, the remediation agent cannot be effectively mixed with the soil, and the remediation effect cannot be guaranteed. The existing crushing equipment can only break the dried blocky contaminated soil into small pieces, and cannot achieve powder or finer particle size. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C18/12B02C18/18B02C23/16B09C1/00B09C1/08
CPCB02C18/12B02C18/18B02C23/16B02C2023/165B09C1/005B09C1/08
Inventor 杨金生田丽娜潘玉英周佑霖麻鑫舒舵曹锐
Owner ZHEJIANG OCEAN UNIV
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