Pulverized coal storing and supplying system

Abstract

The invention relates to a pulverized coal storing and supplying system which comprises a large pulverized coal bunker, two or more surge bunkers, two or more feeders, a pulverized coal supplying pipe, multiple fluidizing devices and a monitoring system. The large pulverized coal bunker comprises a cylindrical bunker body and two or more conical bunker bodies, the top of the cylindrical bunker body is connected with a discharge hole of the pulverized coal supplying pipe, the bottom of the cylindrical bunker body is fixedly connected with the top of each conical bunker body, the bottom of each conical bunker body is connected with the top of the corresponding surge bunker through a flexible connector, and the bottom of each surge bunker is connected with the corresponding feeder through a flexible connector; the bottom of each surge bunker and the bottom of each conical bunker body are each fixedly provided with the multiple fluidizing devices in the circumferential direction; the monitoring system is arranged on the large pulverized coal bunker, and the monitoring system is connected with a control system through a data line. The pulverized coal storing and supplying system not only can supply materials for two or more large boilers simultaneously, but also can effectively prevent the phenomenon that discharging is difficult due to pulverized coal degassing and hardening from occurring.

Description

technical field [0001] The invention relates to a powder storage and supply system, in particular to a pulverized coal storage and supply system. Background technique [0002] Due to the small volume of the pulverized coal storage and supply system in the prior art, usually one pulverized coal storage bin corresponds to only one feeder. For large boilers, double burners and double feeders are usually used. The boiler needs to be equipped with two pulverized coal storage bins, which not only makes the construction and maintenance of the pulverized coal storage and supply system cumbersome, but also makes the overall cost of the pulverized coal storage and supply system very high. In addition, when the pulverized coal is stored in the pulverized coal silo, there is still a potential safety hazard of boiler explosion due to poor feeding due to degassing and hardening. SUMMARY OF THE INVENTION [0003] In view of the above problems, the purpose of the present invention is to ...

AI Technical Summary

Problems solved by technology

[0002] Due to the relatively small volume of the pulverized coal storage and supply system in the prior art, usually one pulverized coal storage bin corresponds to only one feeder. For large boilers, double burners and double feeders are usually used. Therefore, one The boiler needs to be equipped with two pulverized coal storage bins, which not only makes the construction and maintenance of the pulverized coal storage and supply system cumbersome, but also makes the overall cost of the pulverized coal storage and supply system very high

In addition, when the pulverized coal is stored in the pulverized coal bin, there is still a potential safety hazard of boiler explosion due to poor feeding due to degassing and hardening

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