Waste gas heat exchange device of gypsum type vacuum pressurization pouring tank

Abstract

The invention discloses a waste gas heat exchange device of a gypsum type vacuum pressurization pouring tank. The waste gas heat exchange device of the gypsum type vacuum pressurization pouring tank comprises a sewage barrel and a hot water barrel. A heat exchanger is arranged in the hot water barrel, one end of the heat exchanger is connected with an air inlet pipe, the other end of the heat exchanger is connected with a water outlet pipe, and the end, far away from the heat exchanger, of the water outlet pipe is connected with the sewage barrel. An air filtering layer is arranged on the upper portion of the sewage barrel. Fixed pads are arranged at the bottoms of the sewage barrel and the hot water barrel respectively. The waste gas heat exchange device is simple in structure and convenient to use. The problem of noise and dust pollution caused by waste gas emission generated in the production process of the gypsum type vacuum pressurization pouring tank is solved. Meanwhile, the heat energy of the waste gas is used for providing hot water needed by preparation of gypsum slurry, energy is saved, the environment is protected, and the production cost is greatly reduced. The air filtering layer is arranged to conveniently filter the waste gas which may be emitted in the sewage barrel. The fixed pads are arranged and effectively prevent the situation that the sewage barrel and the hot water barrel are knocked over.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and in particular relates to a heat exchange device for waste gas of a gypsum-type vacuum pressurized pouring tank. Background technique [0002] At present, a large amount of waste gas needs to be discharged during the production process of vacuum pressurized pouring tank for gypsum investment casting, and the technology adopted by most manufacturers in the society is to discharge directly to the atmosphere. It turns out that the workshop also adopts the method of discharging directly to the atmosphere. However, during the discharge process, it is noisy and often emits harsh sounds; the high-pressure air contains a large amount of dust, and the environmental pollution is relatively large; the temperature of the high-pressure air is relatively high, about 60-70 ° C, wasting a lot of energy. The preparation of gypsum slurry requires hot water at about 35°C, and if heated, a certain amount of en...

AI Technical Summary

Problems solved by technology

However, during the discharge process, it is noisy and often emits harsh sounds; the high-pressure air contains a large amount of dust, and the environmental pollution is relatively large; the temperature of the high-pressure air is relatively high, about 60-70 ° C, wasting a lot of energy. The preparation of gypsum slurry requires hot water at about 35°C. If it is heated, a certain amount of energy is required.

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