Catalytic thermal oxidizer with sintering prevention function and sintering prevention method thereof

Abstract

The invention relates to a catalytic thermal oxidizer with sintering prevention function and a sintering prevention method thereof. The catalytic thermal oxidizer comprises a first heat exchanger, a heater and a catalyst bed with entrance and exit, wherein a plurality of cooling devices are arranged in the catalyst bed; a second heat exchanger arranged before the first heat exchanger, wherein a heat flow pipeline is connected between the second heat exchanger and each cooling device of the catalyst bed; a cooling liquid supply and transport device, wherein a cold flow pipeline is connected among the second heat exchanger, the cooling liquid supply and transport device and each cooling device of the catalyst bed; and a controller with a temperature sensor, wherein the temperature sensor is arranged on the exit of the catalyst bed to sense wherein the temperature on the exit exceeds the preset temperature or not, furthermore the start and stop of the cooling liquid supply and transport device is controlled by the controller, so as to automatically reduce the temperature of the catalyst bed and prevent sintering.

Description

technical field [0001] The invention relates to a catalytic thermal oxidizer, in particular to a catalytic thermal oxidizer capable of lowering the temperature of the catalyst bed so as not to be too high, thereby having anti-sintering function and its anti-sintering method. Background technique [0002] The thermal oxidizer is used to thermally oxidize the waste gas generated in the industrial production process into carbon dioxide and water vapor, etc., but only by heating to thermally oxidize the waste gas into carbon dioxide and water vapor, etc., must be heated to a higher temperature Just have a way to reach, cause although can accord with environmental protection, but consume a large amount of energy instead, therefore be the birth of the known catalytic thermal oxidizer that utilizes catalyzer to improve. [0003] see figure 1 The known catalytic thermal oxidizer shown comprises an incineration chamber 7 and a heat exchange chamber 8. The incineration chamber 7 has ...

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Problems solved by technology

When the exhaust gas concentration is within the design range, the temperature after the reaction will also be below the maximum operating temperature of the catalyst, and the catalyst bed will not be sintered or damaged; however, certain processes may cause drastic changes in the exhaust gas concentration, and may also There will be intermittent high-concentration waste gas or high-concentration volatile organic waste gas in special batches. In such cases, excessive heat release will occur in the catalyst bed during the reaction, and the temperature rise after excessive heat release It will also exceed the maximum operating temperature, which will lead to sintering of the catalyst and damage the catalyst bed, reducing the treatment effect of the catalyst, and also causing property losses due to the damage of the catalyst bed

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