Novel desulfurization, denitrification, decarburization and dust removal purification combined device for coal-fired flue gas

Abstract

The invention discloses a novel desulfurization, denitrification, decarburization and dust removal purification combined device for coal-fired flue gas, belongs to the field of environmental protection, and in particular relates to the purification treatment of the coal-fired flue gas. The novel desulfurization, denitrification, decarburization and dust removal purification combined device for the coal-fired flue gas is a complete dry and wet matched purification system for the coal-fired flue gas and comprises a combined purification tower, a desulfurization and denitrification agent adding device, a self-circulating sprinkling system, a PH value adjustor, an automatic flue gas monitoring system and an automatic precipitate cleaner, is a coal-fired flue gas purification facility which integrates a cyclone purification principle, an impact purification principle, a sprinkling purification principle and a water membrane purification principle, can perform desulfurization, denitrification and decarburization on the coal-fired flue gas, also has very good absorption and purification effects on PM2.5 (particulate matter 2.5), is a low-resistance new technical scheme, and is suitable for the purification treatment of any flue gas emission amount; the cost and the operation cost are much lower than those of similar desulfurization purification towers; the requirement on the national coal-fired flue gas emission standard is met; the purpose of protecting the environment is achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to the smoke and dust removal and flue gas purification technology of industrial waste gas and coal-fired flue gas. Background technique [0002] The pollution caused by the emission of coal-fired flue gas has reached the point of destroying the ecological environment and affecting human health. Therefore, various smoke and dust removal and flue gas purification technologies have also been developed. However, the previous dry dust removal or wet flue gas purification The products are generally troubled by inability to desulfurize and denitrify, excessive resistance, high operating costs, severe wet corrosion, and equipment blockage of varying degrees, which makes the effect of dust removal and flue gas purification plummet, and causes industrial equipment to be sick. To overcome the problems of work and increased consumption, the present invention discloses a new ...

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Problems solved by technology

[0003] The present invention provides a new coal-fired flue gas desulfurization, denitrification, decarbonization, dust removal and purification combined device, which is a brand-new flue gas purification suitable for any flue gas emission with low resistance and dry and wet methods. The new device is to overcome the problems that the previous dry dust removal cannot be desulfurized, the resistance of the wet purification is too large, and the corrosion and blockage caused by the water in the fan are serious, so as to solve the problem of water in the fan and increase the flue gas while reducing the production cost. The purpose of purification effect

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