Two-phase flow semi-dry deacidification device for flue gas

Abstract

The invention provides a two-phase flow semi-dry deacidification device for flue gas. The device comprises a reaction tower, a spray gun unit arranged in the reaction tower, a compressed gas supply unit, a neutralizer supply unit and a control unit; and the interior of the spray gun unit is provided with a multi-stage atomization structure for atomizing and spraying a neutralizing agent entering the spray gun unit and deacidifying the flue gas in the reaction tower. According to the device provided by the invention, through a specific spray gun capable of realizing multi-stage atomization, the liquid neutralizing agent can be subjected to atomization for multiple times to form fine particles with an average particle diameter of 30-100 [mu]m, so that the specific surface area of the neutralizing agent is greatly increased, the chance of a contact reaction of the neutralizing agent and pollutants in the flue gas is greatly increased, and the purpose of removing the acidic pollutants in the flue gas is achieved; at the same time, the liquid neutralizing agent and water are atomized to form the fine particles, so that reduction of a temperature of the flue gas and full dry operation of the reaction tower are facilitated; and the device does not produce wastewater, and does not need to be cleaned frequently, thereby greatly reducing the investment and running costs.

Description

technical field [0001] The invention relates to the field of pollution treatment, in particular to a two-phase flow semi-dry flue gas deacidification device. Background technique [0002] With the advancement of science and technology, human society has developed rapidly. However, due to insufficient anticipation and poor prevention of the negative impact of highly developed industries, people have three global crises: resource shortage, environmental pollution and ecological damage. Environmental pollution is Due to human factors, the composition or state of the environment changes, adding certain substances to the environment exceeds the self-purification ability of the environment, and the quality of the environment decreases, thereby disturbing and destroying the ecological system and normal production and living conditions of human beings. Garbage incineration SO x , NO x , HCl, particulate dust, heavy metals and dioxins, etc., cause great harm to the environment and ...

AI Technical Summary

Problems solved by technology

At the same time, the equipment must be cleaned once when it is in operation for 7 to 10 days, otherwise, it will lose its dynamic balance. Therefore, a new semi-dry flue gas deacidification device is urgently needed, which can reduce investment while improving efficiency and running costs

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