Waste heat recovery device of industrial kiln

Abstract

The invention discloses a waste heat recovery device of an industrial kiln, and relates to the technical field of industrial kiln equipment. The device specifically comprises a kiln body. When the device is used, a heat insulation box, a heat preservation coating outside the heat insulation box and a heat absorption pipe are arranged, in a using process of the kiln body, heat dissipated by the kiln body through surface radiation can be effectively recycled, a waste heat recovery rate of the kiln body is increased, the cost is saved, the situation that the heat is directly scattered into the atmosphere to cause climate warming is prevented, environmental protection is facilitated, after firing is completed, a first control valve and a second control valve are opened, a fan is started, and the fan introduces external airflow into the heat insulation box via an air conveying pipe and then introduces the external airflow out of the heat insulation box via an air outlet pipe, so that the cooling speed of the kiln body can be increased, collection of fired objects in the kiln body and next-time material distribution of the kiln body are facilitated, and the production efficiency of the kiln body is improved.

Description

technical field [0001] The invention relates to the technical field of industrial kiln equipment, in particular to a waste heat recovery device of an industrial kiln. Background technique [0002] At present, in various departments of industrial production, there are a large number of heating furnaces, kilns, industrial boilers, etc., whose surface radiation temperature is between 200 and 500 ° C, and the radiation waste heat has not been fully utilized, resulting in a serious waste of energy. Therefore, The development of effective waste heat recovery devices is an effective way to rationally utilize energy. In the existing technology, some industries or enterprises have adopted waste heat recovery technology to recycle the waste heat in the industrial production process. For example, some cement factories use the waste heat in the cement production process to build power stations, and the power generated by the power station is reused for cement production. , the waste he...

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Problems solved by technology

[0003] A Chinese invention discloses a waste heat recovery device for an industrial kiln (notification number: CN202329247U), which includes a heat radiation absorbing device arranged outside the industrial kiln, and an insulating layer for preventing heat loss is arranged outside the heat radiation absorbing device; The waste heat recovery device of the industrial kiln of the present invention can effectively recover and utilize the heat lost by the radiation of the kiln body surface due to the thermal insulation layer arranged outside the heat radiation absorbing device of the kiln body, thereby improving the waste heat recovery of the industrial kiln Utilization rate: not only saves cost, but also prevents heat from being directly scattered into the atmosphere to cause climate warming, which is beneficial to environmental protection. It takes a long time for the temperature of the kiln to drop down, which affects the collection of the finished products in the kiln and the next distribution, thus affecting the production efficiency of the kiln

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