Electric precipitation method for high-temperature, high-oil and high-dust gas

A technology of electric dust removal and electric dust removal equipment, which is applied in chemical instruments and methods, electrode cleaning, solid separation, etc., can solve the problems affecting the ability of the dust collection plate to absorb dust, and the dust is not easy to remove the dust of the dust collection plate, so as to achieve the goal of removing dust High oil dust removal efficiency, easy subsequent separation, and large dust removal effect

Inactive Publication Date: 2016-12-21
HENAN DRAGON INTO COAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent is only limited to high-temperature, high-oil and high-dust gas with a small gas volume, and the oily dust is not easy to remove the dust on the dust ...

Method used

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  • Electric precipitation method for high-temperature, high-oil and high-dust gas
  • Electric precipitation method for high-temperature, high-oil and high-dust gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see figure 1 with figure 2 , a method for electrostatic precipitating of high-temperature, high-oil and high-dust gas, comprising the following steps:

[0033] (1) Firstly connect three electric precipitators in parallel, set the temperature at 500°C and the flow rate at 5m 3 / min, containing tar 3000g / m 3, containing dust 2000g / m 3 The high-temperature, high-oil and high-dust gas is passed into one of the electric dust removal equipment, and the dust removal system is started. After the dust is charged, it is adsorbed by the dust collecting plate 4, and tar is precipitated from the mixed gas and adsorbed on the dust collecting plate 4. The high temperature cleans the mixed gas Discharged from the electrostatic precipitator;

[0034] (2) With the progress of dust removal, the internal temperature of the electrostatic precipitator reaches 390°C, the temperature of the internal components is 180°C, and the putty cake on the dust collection plate 4 becomes thicker and...

Embodiment 2

[0038] see figure 1 with figure 2 , a method for electrostatic precipitating of high-temperature, high-oil and high-dust gas, comprising the following steps:

[0039] (1) First connect four electric precipitators in parallel, set the temperature to 700°C and flow rate to 25m 3 / min, containing tar 3000g / m 3 , containing dust 2000g / m 3 The high-temperature, high-oil and high-dust gas is passed into two of the electrostatic precipitators, and the dust removal system is started. After the dust is charged, it is absorbed by the dust collecting plate 4, and tar is precipitated from the mixed gas and adsorbed on the dust collecting plate 4. The high-temperature clean mixed gas Discharged from the electrostatic precipitator;

[0040] (2) With the progress of dust removal, the internal temperature of the electrostatic precipitator reaches 680°C, and the temperature of the internal parts is 660°C. The putty cake on the dust collecting plate is getting thicker and thicker. At this ...

Embodiment 3

[0044] see figure 1 with figure 2 , a method for electrostatic precipitating of high-temperature, high-oil and high-dust gas, comprising the following steps:

[0045] (1) Firstly connect three electric precipitators in parallel, set the temperature to 750°C and flow rate to 15m 3 / min, containing tar 3000g / m 3 , containing dust 2000g / m 3 The high-temperature, high-oil and high-dust gas is passed into one of the electric dust removal equipment, and the dust removal system is started. After the dust is charged, it is adsorbed by the dust collecting plate 4, and tar is precipitated from the mixed gas and adsorbed on the dust collecting plate 4. The high temperature cleans the mixed gas Discharged from the electrostatic precipitator;

[0046] (2) With the progress of dust removal, the internal temperature of the electrostatic precipitator reaches 680°C, the temperature of the internal parts reaches 680°C, and the putty cake on the dust collecting plate becomes thicker and thi...

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Abstract

The invention belongs to the technical field of gas dust removal, and particularly relates to an electric precipitation method for high-temperature, high-oil and high-dust gas. The electric precipitation method includes the following steps that firstly, the high-temperature, high-oil and high-dust gas is injected into electric precipitation devices, and dust removal systems are started; while dust removal is conducted, the temperature in the electric precipitation devices is gradually consistent with the temperature of the high-temperature, high-oil and high-dust gas, oil putty cakes on dust collection pole plates are thicker and thicker, and when the dust collection pole plates cannot meet the dust removal requirement, the dust removal systems are stopped, and the high-temperature, high-oil and high-dust gas is injected into another electric precipitation device; regeneration is conducted on the dust collection pole plates of the electric precipitation devices stopping working through a regeneration device, and when a dust collection pole plate of the electric precipitation device which is working cannot normally work either, the high-temperature, high-oil and high-dust gas is switched to the electric precipitation devices subjected to regeneration again, and the electric precipitation devices continue to work; and in this way, periodic and alternate work and regeneration of the multiple electric precipitation devices are achieved. The electric precipitation method is large in dust removal amount, high in efficiency, simple in step, safe to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of gas dust removal, and in particular relates to an electric dust removal method for high-temperature, high-oil, and high-dust gas. Background technique [0002] In the fields of chemical industry, petroleum, metallurgy, building materials, oil shale, and biological pyrolysis, high-temperature, high-oil, and high-dust gases are often produced, containing a large amount of high-temperature tar, asphalt-like substances, and dust, and carbon-containing substances in the mixed gas are easy to precipitate Substances such as tar and asphalt-like substances can only exist in a gaseous state in a high-temperature environment. Once the temperature is too low or the environment changes, it is easy to precipitate from the mixed gas and attach to the filter mechanism. The precipitate and the dust in the dedusting gas Quickly combine to form a filter cake, causing the filter mechanism to lose its filtering function, mak...

Claims

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Application Information

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IPC IPC(8): B03C3/00B03C3/34B03C3/76
CPCB03C3/00B03C3/34B03C3/76
Inventor 朱书成
Owner HENAN DRAGON INTO COAL TECH CO LTD
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