A pyrolysis gas high temperature electric dust collector with shock wave

Abstract

The invention discloses a pyrolysis gas high-temperature electrostatic precipitator with shock waves. The pyrolysis gas high-temperature electrostatic precipitator comprises a high-temperature electrostatic precipitator shell. A shock wave dust remover is arranged above the high-temperature electrostatic precipitator shell. A pyrolysis gas inlet and a shock wave inlet are formed in the top of the high-temperature electrostatic precipitator shell. The shock wave inlet is communicated with an outlet of the shock wave dust remover. An anode plate is arranged in the high-temperature electrostatic precipitator shell and provided with a plurality of through holes. Cathode bars penetrate the through holes respectively in an inserted manner. One ends of the cathode bars are connected together through a cathode line. A pyrolysis gas outlet is formed in the lower portion of the high-temperature electrostatic precipitator shell. An ash outlet is formed in the bottom of the high-temperature electrostatic precipitator shell. The ash outlet is connected with an ash lock through an ash lock feed valve. An ash lock discharge valve is connected to the lower portion of the ash lock. According to the pyrolysis gas high-temperature electrostatic precipitator, accumulated dust, scaling and blockage of internal components of the high-temperature electrostatic precipitator can be effectively removed, and clean, safe, stable and long-period production running of the high-temperature electrostatic precipitator is guaranteed.

Description

technical field [0001] The invention belongs to the field of low-rank coal pyrolysis, and in particular relates to a pyrolysis gas high-temperature electric dust collector with shock waves. Background technique [0002] Pyrolysis of low-rank coal (lignite, long-flame coal, non-caking coal, weakly caking coal) pulverized coal (≤8mm) to produce semi-coke, gas and coal tar has the characteristics of abundant and cheap sources of pulverized coal, It is one of the main development directions for low-rank coal pyrolysis to realize large-scale production and reduce production costs. Over the years, the main methods of domestic and foreign low-rank pulverized coal pyrolysis industrial tests and production process devices are external heating rotary furnace, solid heat carrier fluidized bed and solid heat carrier moving bed. During the actual industrial test and the operation of the production process unit, the dust content in the pyrolysis gas is as high as 50-80g / Nm 3 , usually m...

AI Technical Summary

Problems solved by technology

In this patent, a rapping device is used to remove the dust accumulated on the anode plate of the high-temperature electrostatic precipitator, but industrial tests show that the dust removal effect is not good, and it cannot meet the requirements of high-efficiency dust removal

At the same time, the dust removal by the vibrator will cause damage to the internal components of the high-temperature electrostatic precipitator, making it unable to meet the long-term safe operation

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