Waste gas treatment device for coal-fired heating furnace

Abstract

The invention discloses a waste gas treatment device for a coal-fired heating furnace. The device comprises a furnace body outlet elbow installed on a furnace body, a vertical smoke pipe communicated with the furnace body outlet elbow and a horizontal smoke pipe communicated with the vertical smoke pipe, a urea tank containing a urea solution is installed on the furnace body outlet elbow, a urea tank upper cover is installed at the top end of the urea tank, a horn pipe is arranged in the middle of the urea tank upper cover, the bottom end of the horn pipe is a flaring section, the flaring section is located in the urea tank, the top end of the horn pipe is installed on the furnace body outlet bent pipe and communicates with the furnace body outlet bent pipe, an atomizing piece is arranged in the urea tank, and the urea tank upper cover is provided with a through hole communicating the inside and the outside of the urea tank. The waste gas treatment device for the coal-fired heating furnace is simple in structure, good in purification effect and low in cost, and is particularly suitable for areas adopting coal-fired heating.

Description

technical field [0001] The invention relates to a waste gas treatment device for a coal-fired heating furnace, which belongs to the technical field of waste gas treatment. Background technique [0002] Clean heating methods such as electric heating and gas heating have been promoted in rural areas, but coal-fired stoves are still used for coal-fired heating in some areas. During the coal combustion process, a large amount of pollutants such as carbon oxides, hydrocarbons, sulfides, nitrogen oxides, and suspended particles will be produced. These waste gases are directly discharged into the atmosphere. On the one hand, they directly cause serious pollution to the environment, which is acid rain. On the other hand, it will endanger the health of residents, easily cause respiratory diseases, and cause life-threatening in severe cases. [0003] For example, the existing patent ZL202010049761.1 discloses a comprehensive treatment device for dust-containing waste gas, which can f...

AI Technical Summary

Problems solved by technology

However, the exhaust gas from the heating furnace has a low discharge pressure and cannot pass through the liquid in the purification pot. Instead, it will cause the exhaust gas to flow back into the room and cause indoor exhaust gas to accumulate, which may easily endanger the lives of residents.

[0005] For example, the existing patent ZL200880017736.2 discloses an exhaust gas treatment device and method, which supplies ammonium chloride and hydrogen chloride into the flue for exhaust gas treatment, however, its It needs to set up large-scale processing equipment with complex structure, and the required materials ammonium chloride and hydrogen chloride are costly and have certain toxicity, so they are not suitable for residential heating

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