Pulping system for flue gas desulfurization process

Abstract

The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a pulping system for a flue gas desulfurization process. The pulping system comprises a pulping pool, a car washing pool and a sewage pool, wherein a water outlet of the car washing pool is connected with the pulping pool through a pipeline, and a water outlet of the sewage pool is connected with the pulping pool through a pipeline; and a water adding opening of the pulping pool is connected with a water storage tank through a pipeline, a discharging slope is arranged at a feeding opening in one side of the pulping pool, a stirring device is arranged in the pulping pool, a slurry conveying pump is arranged at the bottom of the pulping pool, and a liquid outlet of the slurry conveying pump is connected with an absorption tower through a conveying pipeline. The pulping system is a whole set of pulping equipment which is efficient, simple, low in energy consumption, convenient to operate and low in maintenance cost. The system is mainly used for chemical engineering, environmental protection engineering and the like, is a complete set of system for discharging and stirring various particle materials such as limestone and carbide slag raw materials and conveying finished slurry, and can realize automatic water replenishing, stirring, density detection, flow control and automatic slurry replenishing.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization, and in particular relates to a pulping system used in the flue gas desulfurization process. Background technique [0002] At present, in the wet flue gas desulfurization, there are mainly two methods of grinding and pulping with limestone or directly using limestone powder for pulping. [0003] Limestone powder mixing system: the limestone powder bin is mainly arranged on the top of the limestone slurry tank, the limestone powder is transported by the tanker, the vehicle is connected to the feeding pipeline, and the limestone powder is transported to the limestone powder bin by the air compressor of the tanker. The powder bin transports the limestone powder to the slurry tank through the screw feeder to configure the slurry. The limestone powder silo needs to be equipped with a fluidization fan to prevent the limestone powder from compacting in the silo. [0004] Limestone grin...

AI Technical Summary

Problems solved by technology

[0006] 1) After the limestone powder is transported in place, the loading time is too long;

[0007] 2) There is a lot of dust during the unloading of limestone powder;

[0009] 4) The limestone wet grinding system has a lot of equipment and is prone to failures, including a lot of equipment in the feeding system, easy damage to the chain of the bucket elevator, easy blockage of the feeding port, easy wear and tear of the pipeline, and a large amount of maintenance;

[0010] 5) The limestone grinding system includes high and low pressure oil stations, injection oil stations, and reducer oil, which have strict requirements on the lubrication system and increase labor operating costs

[0011] 6) The limestone grinding system is relatively strict with water and material, and the density and fineness of the slurry are not easy to control;

[0012] 7) The limestone discharge valve is easily damaged, and the discharge port is easily blocked;

[0013] 8) When the air humidity increases in rainy and snowy weather, it is difficult to feed materials and the equipment is seriously blocked

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