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Sodium bicarbonate dry powder deacidifying system for incinerating flue gas

A technology for sodium bicarbonate and incineration flue gas, which is applied in gas treatment, membrane technology, dispersed particle separation, etc., can solve the problems of high cost of sodium bicarbonate, affecting the deacidification effect, and low deacidification efficiency, and achieves operation and maintenance. The effect of low cost, long service life and high removal rate

Inactive Publication Date: 2020-06-30
同碧(上海)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the deacidification efficiency of conventional mesh sodium bicarbonate is low, the cost of 600 mesh sodium bicarbonate is high, and it is not easy to store, all of which affect the deacidification effect

Method used

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  • Sodium bicarbonate dry powder deacidifying system for incinerating flue gas
  • Sodium bicarbonate dry powder deacidifying system for incinerating flue gas
  • Sodium bicarbonate dry powder deacidifying system for incinerating flue gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A sodium bicarbonate dry desulfurization system for flue gas incineration, reference Figure 1-Figure 4 , including raw material storage system, graded grinding system, finished product buffer system, finished product dosing system.

[0032] The raw material storage system includes a raw material storage bin 1, a pulse bag filter 11 is installed at the top of the raw material storage bin 1, and a forced arch breaker 12 is installed at the bottom. The finished product buffering system includes a buffering bin 3, a pulse bag filter 31 is installed at the top of the buffering bin 3, and a forced arch breaker 32 is installed at the bottom. The graded grinding system includes a graded grinder 2 , the inlet of the graded grinder 2 is connected to the outlet of the raw material storage bin 1 , and the outlet of the graded grinder 2 is connected to the inlet of the buffer bin 3 . The outlet of the buffer storage bin 3 is connected with the finished product dosing system. A po...

Embodiment 2

[0038]A sodium bicarbonate dry desulfurization system for incineration flue gas, the specific implementation is the same as in Example 1, the difference is that it is used to treat the incineration flue gas of a certain waste incineration plant (processing capacity 2000t garbage / day), and the system design parameters are: One machine four-line system is adopted, the dosage of sodium bicarbonate in each line is 75kg / h, the processing capacity of grinding equipment: 300-400kg / h; the particle size of sodium bicarbonate after grinding: d90 is 20-30 microns.

[0039] During the actual operation, after testing, the dosage of single-line sodium bicarbonate can be adjusted from 30 to 90 kg / h, and the processing capacity of the grinding equipment can be adjusted from 300 to 400 kg / h. The particle size of sodium bicarbonate after grinding: d90 is 23 microns, sulfur dioxide The removal rate is more than 85%, and the removal rate of hydrogen chloride is more than 97%.

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Abstract

The invention belongs to the technical field of flue gas treatment, and particularly relates to a sodium bicarbonate dry powder deacidifying system for incineration flue gas. The system comprises a raw material storage system, a graded grinding system, a finished product caching system and a finished product adding system; the raw material storage system comprises a raw material storage bin, a dust remover is arranged at the top of the raw material storage bin, and an arch breaker is arranged at the bottom; the finished product caching system comprises a caching bin, a dust remover is arrangedat the top of the caching bin, and an arch breaker is arranged at the bottom of the caching bin; the graded grinding system comprises a graded grinding machine, an inlet of the graded grinding machine is connected with an outlet of the raw material storage bin, and an outlet of the graded grinding machine is connected with an inlet of the caching bin; and an outlet of the caching bin is connectedwith the finished product adding system.

Description

technical field [0001] The application belongs to the technical field of flue gas treatment, and more specifically, the invention relates to a sodium bicarbonate dry powder deacidification system for flue gas incineration. Background technique [0002] With my country's increasingly stringent requirements for air pollution control, my country's flue gas treatment technology is constantly updated and developed. On June 14, 2013, the State Council determined ten measures for the prevention and control of air pollution. In 2014, the Ministry of Environmental Protection updated the Pollution Control Standards for Domestic Waste Incineration (GB 18485-2014) to replace the original Pollution Control Standards for Domestic Waste Incineration (GB 18485- 2001), the update of standards, the further control of emission indicators, and the flue gas treatment technology have formed a situation in which semi-dry method is the main method, wet method is assisted, and SCR, SNCR and other te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/83B01D53/52
CPCB01D53/523B01D53/83B01D2251/304B01D2258/0291
Inventor 吴长淋
Owner 同碧(上海)环保科技有限公司
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