CN-224207769-U - Limestone slurry tank slurry circulation pulse anti-precipitation device of thermal power plant

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a circulating pulse anti-sedimentation device for limestone slurry in a limestone slurry tank of a thermal power plant. The limestone slurry circulation pulse precipitation preventing device comprises a limestone feeding device, an outlet main pipeline electric valve, an outlet main pipeline, a tower inlet branch pipe valve and a limestone slurry tank, wherein the limestone feeding device is connected with the outlet main pipeline, the outlet main pipeline electric valve is positioned at the joint of the limestone feeding device and the outlet main pipeline, the limestone slurry tank is connected with the outlet main pipeline through the tower inlet branch pipe, and the tower inlet branch pipe is provided with the tower inlet branch pipe valve. The utility model can maintain the operation of the tank and the flushing time according to the slurry condition when stirring is failed, and has the advantages of low manufacturing cost, simple and convenient operation, safety and stability, and effectively solves the slurry precipitation problem.

Inventors

• ZHAO FANGKUN
• CHENG SHUHUI
• HAN JILIANG
• GONG JIANFENG
• CAO ZHENHUA

Assignees

• 邹平滨能能源科技有限公司
• 山东宏桥新型材料有限公司

Dates

Publication Date

20260508

Application Date

20250328

Claims (10)

1. 1. The utility model provides a limestone slurry tank thick liquid circulation pulse anti-settling device of thermal power plant, its characterized in that includes limestone feed device, export trunk line motorised valve, export trunk line, income tower branch pipe valve and limestone slurry tank; The limestone feeding device is connected with the outlet main pipeline, and the outlet main pipeline electric valve is positioned at the joint of the limestone feeding device and the outlet main pipeline; The limestone slurry tank is connected with the outlet main pipeline through tower inlet branch pipes, the number of the tower inlet branch pipes is a plurality of, and the tower inlet branch pipes are all provided with tower inlet branch pipe valves.
2. 2. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant according to claim 1, wherein the outlet main pipe surrounds the limestone slurry tank.
3. 3. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant according to claim 2, wherein the limestone slurry tank is cylindrical, and the outlet main pipe circumferentially surrounds the limestone slurry tank.
4. 4. The device for preventing precipitation of limestone slurry in a limestone slurry tank in a thermal power plant by circulating pulse according to claim 1, wherein the tower inlet branch pipes are uniformly distributed around the limestone slurry tank.
5. 5. A limestone slurry circulation pulse anti-settling device for a limestone slurry tank in a thermal power plant according to claim 3, wherein the tower inlet branch pipe is vertically separated from a pipeline surrounding the limestone slurry tank and inserted into the limestone slurry tank.
6. 6. The limestone slurry circulation pulse anti-settling device of a thermal power plant according to claim 1, wherein the outlet main pipe is made of 2205 stainless steel pipes.
7. 7. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant of claim 1, wherein the limestone feed device includes a limestone slurry circulation pump.
8. 8. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant according to claim 1, wherein the outlet main pipeline electric valve is a remote adjustable electric valve.
9. 9. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant according to claim 8, wherein the remotely controllable electrically operated valve is an electrically operated butterfly valve.
10. 10. The limestone slurry tank slurry circulation pulse anti-settling device of a thermal power plant according to claim 1, wherein the tower inlet branch pipe valve is a manual valve.

Description

Limestone slurry tank slurry circulation pulse anti-precipitation device of thermal power plant Technical Field The utility model relates to the technical field of mechanical engineering, in particular to a circulating pulse anti-sedimentation device for limestone slurry in a limestone slurry tank of a thermal power plant. Background With the rapid development of economy, the environmental pollution problem is more remarkable, and the smoke emission of a thermal power plant is one of the important sources of atmospheric pollution as a key field of energy production. Therefore, the flue gas treatment of the thermal power plant becomes a core task for enterprises to fulfill environmental responsibility and respond to environmental protection policies, and the desulfurization process is a key link. In the desulfurization system, limestone slurry is used as a core raw material for removing harmful substances in flue gas, and plays a role in importance. The limestone is crushed and ground into powder, and then is stirred and mixed with water according to a specific proportion to form slurry, the density of the slurry is high, and a large amount of stone particles are mixed in the slurry. In the storage process, because a plurality of uncontrollable factors exist in the slurry tank, such as the complexity of liquid flow, local temperature and concentration difference and the like, the traditional stirring mode is difficult to realize uniform mixing, so that the slurry is easy to generate a precipitation phenomenon. Once a precipitate forms, a serious set of problems can arise. In the aspect of the pipeline, precipitated solid particles can gradually accumulate to block the pipeline, so that normal conveying of slurry is blocked, and the continuity of a desulfurization process is affected, and in a slurry tank, uneven precipitation can lead to unbalanced slurry distribution, serious gypsum accumulation in partial areas, further aggravate the precipitation problem and even cause slurry solidification. The desulfurization efficiency is greatly reduced, the energy consumption and the raw material waste are increased, and equipment is damaged when serious, so that the whole desulfurization system cannot normally operate, and high maintenance cost and production loss are brought. In view of the above, it is urgent to develop an efficient, reliable and economical device for preventing precipitation of limestone slurry in a slurry tank, so as to ensure stable operation of a desulfurization system, promote environmental protection efficiency of a thermal power plant, and assist development of environmental protection industry in China. Disclosure of utility model The utility model aims to provide a circulating pulse anti-sedimentation device for limestone slurry in a limestone slurry tank of a thermal power plant, which aims to solve the problems in the prior art. The utility model provides a limestone slurry tank thick liquid circulation pulse anti-settling device of thermal power plant, includes limestone feed device, export trunk line motorised valve, export trunk line, income tower branch pipe valve and limestone slurry tank; The limestone feeding device is connected with the outlet main pipeline, and the outlet main pipeline electric valve is positioned at the joint of the limestone feeding device and the outlet main pipeline; The limestone slurry tank is connected with the outlet main pipeline through tower inlet branch pipes, the number of the tower inlet branch pipes is a plurality of, and the tower inlet branch pipes are all provided with tower inlet branch pipe valves. Further, the outlet main pipe surrounds the limestone slurry tank. Further, the limestone slurry tank is cylindrical, and the outlet main pipe circumferentially surrounds the limestone slurry tank. Further, the tower inlet branch pipes are uniformly distributed around the limestone slurry tank. Further, the tower inlet branch pipe is vertically separated from a pipeline surrounding the limestone slurry tank and is inserted into the limestone slurry tank. Further, the outlet main pipe is made of 2205 stainless steel pipes. Further, the limestone feed apparatus includes a limestone slurry recirculation pump. Furthermore, the outlet main pipeline electric valve is a remote adjustable electric valve. Further, the remote adjustable electric valve is an electric butterfly valve. Further, the tower inlet branch pipe valve is a manual valve. Compared with the prior art, the utility model has the beneficial effects that: 1. The system stability is improved, when the limestone slurry tank stirring fails, the device can ensure the continuous normal operation of the tank, avoid the shutdown of the whole desulfurization system caused by local failure, greatly enhance the stability and reliability of the system operation and ensure the continuity of the desulfurization process of the thermal power plant. 2. The flushing time can be flexibly formulated according