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A power station auxiliary machine dust removal device and dust removal method

A dust removal device and auxiliary machine technology, applied in separation methods, chemical instruments and methods, loading/unloading, etc., can solve the problems of poor sealing of the dumping trough, secondary pollution, coal leakage channels, etc., and achieve safe and reliable use, The effect of short construction period and stable operation

Inactive Publication Date: 2019-11-22
长春众联力合装载设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The greater the height difference of the fall, the more serious the pollution will be
In the method of controlling this pollution, various dust removal equipment and methods such as high-voltage static electricity, cloth bag type, impact type or water film type are widely used at present to capture the escaping dust, collect it and then treat it centrally. Pollution has some effect, but there are still some limitations
[0003] The discharge chute is not tightly sealed, and the coal retaining rubber is in direct contact with the coal during operation, causing serious wear and tear, and soon loses its sealing effect, forming a powder and coal leakage channel, causing serious environmental pollution and a major fire hazard
In addition, the energy consumption method of operating the dust removal equipment is used to remove dust. The dust removal effect is at the cost of consuming a certain amount of energy. The collected dust needs to be cleaned and disposed of, requiring a certain amount of manpower, transportation, and water and electricity consumption. Pollution

Method used

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  • A power station auxiliary machine dust removal device and dust removal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0033] The material enters the material guide trough through the discharge pipe; the inner plate of the material guide trough is made of 6mm material Q235; the design length is 1.5 meters per section, and it is connected by bolts; the height of the bottom of the material guide trough from the belt conveyor belt is not greater than 50mm The outer seal of the guide trough is sealed with 5mm polyvinyl chloride, which can be easily and quickly disassembled and installed; the design of the guide trough is 1.5 meters per section, and the length of the guide trough is a modular design, which is convenient for installation and replacement during maintenance.

[0034] After the belt conveyor is blanked, a multi-functional dust removal room, a slow dust return room, a dust gas separation room, and a dust microcirculation room are installed. A sealed gas return pipe is set in the dust removal chamber to lead the slightly positive pressure airflow to the front of the material discharge por...

comparative example 1

[0037] The bag filter and electrostatic precipitator have good dust removal effect, but they are large in size and high in cost. Especially in the renovation project, the requirements for the site are relatively high. At the same time, a high-power blower must be provided, which consumes a lot of energy. Suitable for optional use during infrastructure construction.

comparative example 2

[0039] The water film dust collector has good dust removal effect and low cost, but there are problems in the treatment of large energy consumption, large water consumption, waste liquid and dust slurry pollution.

[0040] Compared with the bag filter and the water film filter in the present invention, the environmental dust concentration can be from 1000mg / m 3 down to 10mg / m 3 ; No personnel to operate, no operating costs, in addition, this dust removal device also has the advantages of simple structure, small footprint, short construction period, safe and reliable use, and stable operation.

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Abstract

The invention discloses a power station subsidiary engine dedusting device and a dedusting method thereof. The device comprises a material falling tube and a material guiding tank assembly including a material guiding tank and a belt conveyor; a material goes through the material falling tube and enters the material guiding tank, is transferred to the belt conveyor through the material guiding tank and finally reaches a transfer station; the material guiding tank assembly is provided with a multifunctional dedusting chamber; a dust return buffering chamber is arranged above the multifunctional dedusting chamber; a dust-gas separation chamber and a dust microcirculation chamber are sequentially arranged behind the multifunctional dedusting chamber; the dust-gas separation chamber separates dusts from airflow; and an inclined deflection plate and a hanging rubber strip are arranged in the dust microcirculation chamber to further settle residual dusts and make the settled dusts circulated to the material guiding tank assembly and finally transported to the transfer station. The dedusting method using the device makes the dust collecting rate greater than greater than 99.9%, and the device makes the dust overflow amount to reach or be lower than national standards after being mounted. The dedusting device has the advantages of no power consumption, no personnel operation and no operating cost.

Description

technical field [0001] The invention relates to the field of dust removal, in particular to a dust removal device and a dust removal method for power station auxiliary machines. Background technique [0002] The dust pollution in the transport belt transfer station of the thermal power plant is mainly caused by the impact airflow generated when the upper material falls downwards, which carries the dust out and disperses it into the surrounding air. Under the action of the impinging airflow, part of the fine dust entrained in the material obtains the escape power to disperse and float to the surrounding air, thus causing air dust pollution within a certain distance and range to the working environment. The degree of pollution within this certain distance and range depends on the material related to the height of the drop. The greater the height difference of the drop, the more serious the pollution will be. In the method of controlling this pollution, various dust removal e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D45/02B65G69/18
CPCB01D45/02B65G69/186
Inventor 马兰图郭永广
Owner 长春众联力合装载设备有限公司