Purifying device for alkaline pollutant gases

Abstract

The invention belongs to the technical field of atmospheric pollution control and discloses a purifying device for alkaline pollutant gases. The purifying device comprises a purifying tank of which the upper part is provided with a gas outlet and the lower part is provided with a gas inlet; an adsorptive purification unit is arranged in the purifying tank and comprises a supporting plate which ishorizontally and fixedly arranged in the purifying tank; a plurality of ventilation holes are formed in the supporting plate; a filter bag for filtering gas is arranged in each ventilation hole and the top end of each filter bag is arranged in an open manner; the height of the gas outlet in the vertical direction is higher than the height of the top end of the filter bag. According to the device,the alkaline pollutant gases entering the purifying tank are in full contact in the purifying tank by using a filter material in the adaptive purifying unit, and fine particles such as dust in the pollutant gases and alkaline harmful gases such as ammonia and polyamine are captured by a chemical adsorption principle, thereby realizing purification of the pollutant gases; in addition, a purifying effect is good.

Description

technical field [0001] The invention belongs to the technical field of air pollution prevention and control, and in particular relates to an alkaline pollution gas purification device. Background technique [0002] With the acceleration of China's industrialization process, environmental pollution incidents emerge one after another. At present, China's air pollution is very serious. The common alkaline pollutants in the air are mainly ammonia and other organic alkaline gases (organic amines, such as diethylamine, diethylenetriamine, triethylenetetramine, etc.). These alkalis Sexual pollution gases mainly exist in chemical, foundry, printing and breeding industries. [0003] At present, the purification treatment of alkaline polluted gas mainly uses a spray tower. Its operation method is as follows: the alkaline polluted gas is continuously introduced from the bottom of the tower through the air duct, and the alkaline polluted gas is sprayed from the top of the tower during ...

AI Technical Summary

Problems solved by technology

However, in order to meet strict emission standards, many companies need to use multi-stage spraying towers to remove harmful substances such as suspended particles and alkaline polluting gases through multi-stage spraying. The disadvantage of this method is that multi-stage spraying The showering method not only requires the construction of multi-level equipment, but also increases the area occupied by the equipment, and also consumes a lot of absorption liquid and water.

During the purification process, the booster pump of the spray tower needs to run all the time in order to pressurize the absorption liquid and return it to the top of the tower, which leads to its disadvantages: first, the single purification efficiency is low, and second, the energy consumption is high

Images