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Device and method for removing dust and tar

A tar and dust collector technology, which is applied in the field of dust removal and tar removal devices using water washing, dust removal and tar removal devices, can solve the problem of low tail gas emission requirements, high power consumption of electrostatic precipitators, and unsuitable flue gas with small gas volume, etc. problem, to achieve the effect of small footprint, small resistance and low cost

Inactive Publication Date: 2014-11-19
袁磊 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electrostatic precipitator uses high voltage to positively charge the solid particles in the flue gas, and the positively charged particles move to the cathode under the action of the electric field. After the charged dust contacts the cathode, it releases the positive charge and becomes an electroless state. Then the principle of drop collection is used for dust removal. This dust removal method is widely used in flue gas dust removal in thermal power plants. It has a wide temperature range, a large amount of flue gas to be processed, and flue gas with low exhaust emission requirements; but the electric dust collector has consumption. Disadvantages of high power and easy damage
[0005] However, in daily life, the dusty flue gas produced by individuals or units that incinerate solid waste and use coal for heating is often overlooked, while bag dust removal and electric dust removal are both suitable for large factories, and for the dust generated in daily life Small gas volume smoke is not applicable

Method used

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  • Device and method for removing dust and tar

Examples

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Embodiment 1

[0038] A dust removal and tar removal device, said device comprises a washing pump 1, a dust collector 2, a chimney 3, a settling tank 4, a mud pump 5 and a clear water tank 6, the washing pump 1, a dust collector 2, a settling tank 4 and a clear water tank 6 are connected in turn, the side of the dust collector 2 is provided with a flue gas inlet, the middle of the dust collector 2 is vertically fixed with a chimney 3, and there are 10 nozzles 7 uniformly distributed in the middle of the dust collector 2, and the settling tank 4 A partition 8 is provided.

[0039] The diameter of the flue gas inlet on the side of the dust collector 2 is smaller than the diameter of the dust collector 2, the water surface height at the bottom of the dust collector 2 is 1m, and the water surface height at the bottom of the chimney 3 is 0.5m from the bottom of the dust collector 2.

Embodiment 2

[0041] A dust removal and tar removal device, said device comprises a washing pump 1, a dust collector 2, a chimney 3, a settling tank 4, a mud pump 5 and a clear water tank 6, the washing pump 1, a dust collector 2, a settling tank 4 and a clear water tank 6 are connected in turn, the side of the dust collector 2 is provided with a flue gas inlet, the middle of the dust collector 2 is vertically fixed with a chimney 3, the inner plane of the middle part of the dust collector 2 is evenly distributed with 20 nozzles 7, and the settling tank 4 A partition 8 is provided.

[0042] The diameter of the flue gas inlet on the side of the dust collector 2 is smaller than the diameter of the dust collector 2, the water surface height at the bottom of the dust collector 2 is 3m, and the water surface height at the bottom of the chimney 3 is 0.8m from the bottom of the dust collector 2.

[0043] The present invention also provides a method for dedusting and tar removal, comprising the fol...

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Abstract

The invention discloses a device and a method for removing dust and tar. The device includes a washing pump, a dust remover, a chimney, a sedimentation tank, a slurry pump and a clear water tank. The method for removing the dust and the tar through the device includes following steps: sedimentation, spray, sedimentation and the like. The device is simple in structure, is small in occupied area, is low in cost and is strong in practicability. The method for removing the dust and the tar belongs to a pure physical method, is free of generation of any harmful pollutant in processes, is green and environmental-protective, can allows particles with particle diameters being more than 0.1mm to be removed and achieve a dust removing efficiency being 92%, enables a load in subsequent dust removing process to be greatly reduced and a tail gas to be discharged with a standard being reached completely.

Description

technical field [0001] The invention relates to a device and method for dust removal and tar removal, in particular to a device and method for dust removal and tar removal by water washing, and belongs to the field of dust removal for flue gas or coal gas. Background technique [0002] Dust-containing flue gas is a harmful gas formed after the combustion of combustible solids such as solid fossil fuels, firewood, and solid waste, and the ash is affected by thermal buoyancy and flows with the flue gas, and is evenly dispersed in the flue gas. After the dust and flue gas comes out of the combustion device or the heat recovery device, the temperature is 80~300°C, and the dust content is 500mg / Nm 3 ~10kg / Nm 3 . [0003] Dust and tar fumes are generally produced in the following ways: 1. After burning solid fuels such as coal and firewood in daily life, the remaining ash is relatively light, and is easily affected by thermal buoyancy and flows with the flue gas to produce dust ...

Claims

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Application Information

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IPC IPC(8): B01D50/00
Inventor 袁磊张超群王为为黄大中
Owner 袁磊