CN-115654517-B - Method and equipment for treating organic particulate matter waste gas

CN115654517BCN 115654517 BCN115654517 BCN 115654517BCN-115654517-B

Abstract

The application discloses a treatment method and treatment equipment for organic particulate waste gas, wherein the treatment method comprises the steps of directly conveying the organic particulate waste gas to a combustion chamber of a regenerative combustion furnace through a conveying pipe, mixing the organic particulate waste gas with the organic waste gas entering the combustion chamber after being heated by a heat accumulator of the regenerative combustion furnace, and burning the organic particulate waste gas and the organic waste gas in the combustion chamber together. The application changes the mode that the organic particulate matter waste gas enters the regenerative combustion furnace, and changes the original mode that the organic particulate matter waste gas enters the combustion chamber together with the common organic waste gas from the regenerative chamber into the mode that the organic particulate matter waste gas directly enters the combustion chamber of the regenerative combustion furnace through the conveying pipe for combustion. The treatment mode can solve the problems that organic particulate matter waste gas in the original method is softened and blocks the honeycomb heat storage holes when passing through the heat storage chamber.

Inventors

ZHANG DAN
YUAN XIANGJIAN
WANG XIWEN
WANG ZHENGLU
LIANG CHUNCHENG

Assignees

浙江德力装备有限公司

Dates

Publication Date: 20260505
Application Date: 20221114

Claims (5)

1. The treatment equipment for the organic particulate matter waste gas is characterized by comprising a heat accumulating type combustion furnace and a conveying pipe; The regenerative combustion furnace includes: The combustion furnace comprises a combustion furnace body, a material conveying pipe and a material blowing device, wherein the combustion furnace body is provided with a combustion chamber and at least two mutually independent regenerators, the combustion chamber is distributed above the regenerators, an intercommunication channel is arranged on the combustion chamber, the combustion chamber is connected with each regenerator through the corresponding intercommunication channel, and the material conveying pipe is communicated with the combustion chamber and is used for conveying organic particulate matter waste gas to the combustion chamber; The organic waste gas inlet, the waste gas outlet and the purging air inlet are all positioned at one end of the heat accumulator, which is opposite to the combustion chamber; A burner disposed in the combustion chamber; the organic waste gas conveying pipe is communicated with the organic waste gas inlets of the regenerators through pipelines; the purging pipe is communicated with the purging air inlets of the regenerators through pipelines; The waste discharge pipe is communicated with the waste discharge port of each regenerator through a pipeline; The treatment equipment for the organic particulate waste gas also comprises a conveying main pipe, wherein each conveying pipe is communicated with the conveying main pipe; a material conveying fan is arranged on the material conveying main pipe and is used for conveying the organic particulate waste gas into the combustion chamber; The number of the conveying pipes is the same as that of the regenerators, the conveying pipes are in one-to-one correspondence with the regenerators, the outlets of the conveying pipes are positioned right above or obliquely above the corresponding regenerators, the conveying pipes are used for conveying the organic particulate matter waste gas to the combustion chamber of the regenerative combustion furnace, and the organic particulate matter waste gas and the organic waste gas are mixed with the organic waste gas entering the combustion chamber after being heated by the regenerators of the regenerative combustion furnace and are combusted in the combustion chamber; The device also comprises a plurality of control valves, wherein the opening and closing of the organic waste gas inlet are controlled by the corresponding control valves, the opening and closing of the waste discharge port are controlled by the corresponding control valves, and the opening and closing of the purging air inlet are controlled by the corresponding control valves; Each feed conveyor pipe can be independently controlled to open or close.
2. The apparatus for treating exhaust gas of organic particulate matter of claim 1, wherein the number of regenerators is three, a first regenerator, a second regenerator, and a third regenerator, respectively.
3. The apparatus for treating exhaust gas of organic particulate matter according to claim 1, wherein the burner is provided with a gas pipe and a combustion-supporting gas pipe.
4. The apparatus for treating an exhaust gas of organic particulate matter of claim 1, wherein the heat accumulator is a honeycomb ceramic heat accumulator.
5. The apparatus for treating an exhaust gas of organic particulate matter of claim 1, further comprising a main fan, an induced draft fan, and a purge fan; the main fan is arranged on the organic waste gas conveying pipe and is used for conveying organic waste gas to the combustion furnace body; the purging fan is arranged on the purging pipe and used for purging organic matters remained in the heat accumulator in the heat accumulation chamber; The induced draft fan is arranged on the waste discharge pipe and is used for pumping the treated waste gas out of the combustion furnace body.

Description

Method and equipment for treating organic particulate matter waste gas Technical Field The invention relates to the field of waste gas treatment, in particular to a method and equipment for treating organic particulate matters waste gas. Background The existing method for treating waste gas by using the regenerative combustion furnace is that the waste gas enters the lower chamber body from the lift valve, then is preheated by the regenerative bricks (heat accumulator) in the lower chamber body, and then enters the upper chamber body for combustion after reaching a certain temperature, and the heat accumulation is used for preheating the organic waste gas which enters subsequently, so that the fuel consumption of waste gas temperature rise is saved, the lower chamber body with the regenerative bricks is divided into more than two (including two), and each lower chamber body with the regenerative bricks sequentially undergoes the procedures of heat accumulation, heat release, cleaning and the like, and the continuous operation is repeated. After the heat is released, a proper amount of clean air is introduced immediately to clean the heat storage bricks of the lower chamber body (so as to ensure that the VOC removal rate is over 98 percent), the heat storage bricks can enter a heat storage procedure only after the cleaning is finished, and otherwise, the residual VOCS is discharged to a chimney along with the flue gas, so that the treatment efficiency is reduced. The heat accumulating brick is usually a honeycomb ceramic heat accumulator, the heat exchanging area of which is directly related to the pore diameter and the wall thickness of the honeycomb ceramic, the smaller the pore diameter is, the thinner the wall thickness is, the larger the surface area is, the larger the heat exchanging area is, and the heat exchanging efficiency is also higher. When organic particles are mixed in the waste gas, the temperature in the heat storage brick does not reach the combustion temperature, the organic particles reach the melting temperature in the honeycomb ceramic holes of the heat storage brick to melt and block the honeycomb ceramic holes of the heat storage body, so that the required pressure drop through the heat storage brick is increased, after the waste gas is finally completely blocked, the waste gas cannot enter the upper chamber body through the heat storage brick, and the heat storage type combustion furnace loses the capability of waste gas treatment. Disclosure of Invention The invention aims at the problems and provides a method and equipment for treating organic particulate matters waste gas. The technical scheme adopted by the invention is as follows: The method for treating the organic particulate matter waste gas is characterized in that the organic particulate matter waste gas is directly conveyed to a combustion chamber of a regenerative combustion furnace through a conveying pipe, is mixed with the organic waste gas which enters the combustion chamber after being heated by a regenerative chamber of the regenerative combustion furnace, and is combusted in the combustion chamber together with the organic particulate matter waste gas. The application changes the mode that the organic particulate matter waste gas enters the regenerative combustion furnace, and changes the original mode that the organic particulate matter waste gas enters the combustion chamber together with the common organic waste gas from the regenerative chamber into the mode that the organic particulate matter waste gas directly enters the combustion chamber of the regenerative combustion furnace through the conveying pipe for combustion. The treatment mode can solve the problems that organic particulate matter waste gas in the original method is softened and blocks the honeycomb heat storage holes when passing through the heat storage chamber. The heat accumulator of the heat accumulator does not need to pass through the organic particulate matter waste gas, so that the pore diameter of the honeycomb ceramic pores in the heat accumulator can be relatively smaller, the volume of the heat accumulator and the number of heat accumulating bricks are reduced, the manufacturing cost is reduced, and the organic waste gas passing through the heat accumulator does not contain components which are coked or softened at high temperature, so that the overhaul and maintenance time of the heat accumulator combustion furnace can be reduced, the replacement times of the heat accumulating bricks are reduced, and the use cost is reduced. The application also discloses a treatment device for the organic particulate waste gas, which comprises a regenerative combustion furnace and a conveying pipe; The regenerative combustion furnace includes: The combustion furnace comprises a combustion furnace body, a material conveying pipe and a material blowing device, wherein the combustion furnace body is provided with a combustion chamber and at least two m