Chemical plant flue gas desulfurization, denitration and dust removal equipment

Abstract

The invention discloses chemical plant flue gas desulfurization, denitration and dust removal equipment, and relates to the technical field of industrial flue gas purification treatment. The chemicalplant flue gas desulfurization, denitration and dust removal equipment comprises a box body, and a cooling device, a drying device and a denitration device are arranged in the box body from left to right. During use, flue gas is introduced into the equipment to be cooled by a cooling mechanism, then the cooled flue gas is introduced into a desulfurization bin, after a desulfurizing agent fully reacts with the flue gas through a rotating pipe and a desulfurizing agent liquid inlet pipe, water vapor in the flue gas and the desulfurizing agent in the flue gas are removed through the drying device, then the flue gas is introduced into a denitration bin, the flue gas is filtered through a second filter plate and discharged out of the device after reacting through a denitration agent, and the content of sulfur and nitrate is detected through a sensor before exhaust. When the content detected by the sensor is too high, a valve is opened, the flue gas is led out from the upper portion of the box body, collected and retreated, and the device is easy to operate, capable of efficiently conducting desulfurization, denitration and dust removal operation on the flue gas and high in practicability.

Description

technical field [0001] The invention relates to the technical field of industrial flue gas purification treatment, in particular to a flue gas desulfurization, denitrification and dust removal equipment in a chemical plant. Background technique [0002] The desulfurization, denitrification and dust removal technology is a selective non-catalytic reduction denitrification technology. This technology uses NH3, urea and other reducing agents to spray into the area with a temperature of 850-1100 ° C in the furnace. NOx undergoes selective reaction, and NOx is reduced to nitrogen and water. This method uses the furnace as a reactor. The process is simple and easy to operate. The desulfurization, denitrification and dust removal equipment is widely used in thermal power generation, iron and steel smelting, printing, dyeing, spinning and finishing, cement chemical industry, mining Manufacturing, leather tanning, food and beverage and other industries, various large, large, medium a...

AI Technical Summary

Problems solved by technology

[0003] In the Chinese invention patent document with the publication number CN209828593U, a chemical plant flue gas desulfurization, denitrification and dust removal equipment is disclosed. The equipment is equipped with pH detectors in both the desulfurization tank and the denitrification tank, and the desulfurization tank and the denitrification tank are filled in a targeted manner. For chemical agents used for desulfurization and denitrification, when the pH detector monitors that the pH of the agent drops to a certain limit value, the electronically controlled valve at the corresponding position is opened, and the chemical agent with a higher concentration is added to the desulfurization pool or denitrification pool, but The device performs denitrification and desulfurization treatment on the flue gas through the interconnected reaction pools. When the denitrification agent and desulfurization agent are mixed through the flue gas, the reaction will reduce the processing efficiency of the equipment and cause waste.

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