Exhaust gas absorption device for aluminum alloy die casting product production

Abstract

The invention discloses an exhaust gas absorption device for aluminum alloy die casting product production, and concretely relates to the field of exhaust gas treatment. The device comprises a gas inlet tube, one end of the gas inlet tube is connected to the bottom of a water storage tank, a heat exchange tube is arranged at the end part, corresponding to the gas inlet tube, in the water storage tank, one end of the heat exchange tube is connected to the outer sidewall of the middle part of the water storage tank and is connected with a first gas delivery tube, one end of the first gas delivery tube is connected to the top of a spray tank, the front surface of the water storage tank is provided with a control switch, a water drawing tube is inserted into the water storage tank, one end ofthe water drawing tube is connected to the water inlet end of a first water pump, the water outlet end of the first water pump is connected with a first water outlet tube, and a second water pump is arranged at one side of the bottom of the water storage tank. The device improves the waste heat utilization effect of exhaust gas during use, and a part of the heated water is used for circulating spray treatment to improve the adhesion strength of harmful substances and particulate matters in the exhaust gas, so the purification effect on the exhaust gas is improved.

Description

technical field [0001] The invention relates to the field of waste gas treatment, and more specifically, the invention relates to a waste gas absorbing device produced by aluminum alloy die castings. Background technique [0002] With the development of casting technology, casting has widely used a new generation of self-hardening bark resin sand molding, which not only shortens the production cycle, improves production efficiency, but also improves the appearance quality of castings. , due to the baking of the high-temperature aluminum alloy liquid, it will emit a mixed gas with an irritating odor. In the mixed gas, there are not only sulfur dioxide, nitrogen dioxide and a small amount of nitrogen monoxide, hydrogen sulfide, but also a very small amount of viscosity. Large resin volatiles, such as formaldehyde, phenol, methanol, benzene compounds and other harmful substances, this kind of exhaust gas is scattered everywhere, which is harmful to the health and safety of pers...

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Problems solved by technology

[0004] However, the exhaust gas adsorption device of the above-mentioned patent cannot utilize the waste heat in the exhaust gas during use, and the activated carbon filter layer needs to be replaced frequently during use, resulting in waste of resources

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