Cooling and filtering device used before purification of waste gas in chemical kettle

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a cooling and filtering device used before purification of waste gas in a chemical kettle; the cooling and filtering device comprises a shell, a cold water pool is arranged on the left side of the shell, a ventilation pipe is arranged in the cold water pool, a filter is arranged on the right side of the cold water pool, and a filter paper box is arranged in the filter; a pressure plate is arranged on the lower side of the filter paper box, and a fixing rod is fixedly connected to the surface of the pressure plate. According to the cooling and filtering device used before purification of the waste gas in the chemical kettle, through cooperative use of the cold water pool, the ventilation pipe, the filter, a protruding column, a pin rod, a fixing block, a sealing plug, a plug groove and a small spring, waste gas discharged out of a reaction kettle can be cooled firstly, then impurity filtering treatment is conducted, the filtering effect of activated carbon is improved, and the service life of the activated carbon is prolonged; and the filtering device can automatically open and seal a filtering opening to stop filtering and remind replacement when replacement is needed, so that the filtering effect is ensured.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a cooling and filtering device used for cleaning waste gas in chemical kettles. Background technique [0002] Activated carbon is usually used to purify the exhaust gas discharged from the chemical reactor, but directly passing the exhaust gas in the reactor into the activated carbon will cause the impurities in the exhaust gas to directly enter the activated carbon, which will easily cause the activated carbon to block and reduce the efficiency of purifying the exhaust gas. And reduce the life of activated carbon, increase the frequency of its replacement, increase the cost, and the exhaust gas directly discharged from the reactor is usually at a high temperature, directly discharged into the activated carbon may cause damage to the activated carbon, reduce or even lose the effect of purification . Contents of the invention [0003] (1) Solved technical problems ...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a cooling and filtering device used for the purification of the waste gas in the chemical kettle, which is equipped with the ability to cool the waste gas discharged from the reaction kettle first, and then perform the treatment of filtering impurities, and increase the amount of activated carbon. The filter effect and service life, and the filter device can automatically open and seal the filter port to stop the filter to remind the replacement when it needs to be replaced, so as to ensure the filter effect, and solve the problem of directly passing the exhaust gas in the reactor into the activated carbon. The impurities in the exhaust gas also directly enter the activated carbon, which is easy to cause the blockage of the activated carbon, reduce the efficiency of purifying the exhaust gas, and reduce the life of the activated carbon, increase the frequency of its replacement and increase the cost, and the exhaust gas directly discharged from the reactor usually has a higher temperature High, direct discharge into activated carbon may cause damage to activated carbon, reduce or even lose the purification effect

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