Limestone-gypsum process desulphurization apparatus

Abstract

The invention relates to a limestone-gypsum process desulphurization apparatus. A technical key point is as follows: the limestone-gypsum process desulphurization apparatus comprises a limestone-gypsum bin, a desulphurization tower, a gypsum sedimentation tank and a chimney, wherein a desulphurization tank is arranged at the inner bottom of the desulphurization tower, two layers of defogging devices are arranged in the top of the desulphurization tower, three spraying layers are arranged below the defogging devices, each spraying layer comprises a spray nozzle and a spraying pipe, the spray nozzle is connected with the desulphurization tank by virtue of the spraying pipe, a circulating pump is arranged on one end, which is closed to the desulphurization tank, of the spraying pipe, the top of the desulphurization tank is connected with a serous fluid tank by virtue of a slurry inlet pipe, the slurry inlet pipe is provided with a slurry inlet pump, the serous fluid tank is communicated with the limestone bin which is arranged above the serous fluid tank by virtue of a powder inlet pipe, the bottom of the desulphurization tank is communicated with the gypsum sedimentation tank by virtue of a gypsum discharging pipe, the gypsum discharging pipe is provided with a gypsum slurry discharging pump, a smoke inlet and a smoke outlet are formed in the desulphurization tower, the smoke inlet is arranged below the spraying layers, the smoke outlet is disposed above the defogging devices, and the smoke outlet is communicated with the chimney by virtue of a smoke discharging pipe. The limestone-gypsum process desulphurization apparatus is high in desulphurization efficiency, thorough in desulphurization and low in sulfur dioxide concentration of the discharged smoke.

Description

Technical field: [0001] The invention relates to a desulfurization device, in particular to a limestone gypsum method desulfurization device. Background technique: [0002] With the development of the economy, the demand for energy is increasing, and the problem of environmental pollution is becoming more and more serious. Among them, sulfur dioxide is one of the main air pollutants facing human beings today. my country's power coal accounts for a large proportion. The sulfur dioxide pollution generated by coal-fired boilers and power plants is a serious challenge faced by my country's energy and environmental protection departments. However, the desulfurization equipment used in existing boilers and power plants has low desulfurization efficiency and incomplete desulfurization, and it is difficult for the concentration of sulfur dioxide in the captured flue gas to reach the emission target. Invention content: [0003] In order to overcome the deficiencies of the prior ar...

AI Technical Summary

Problems solved by technology

However, the desulfurization efficiency of the desulfurization equipment used in the existing boiler power plant is low, and the desulfurization is not complete, and the concentration of sulfur dioxide in the flue gas is difficult to meet the emission standard.

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