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Pulverized coal storing and supplying system

A pulverized coal and monitoring system technology, which is applied in the direction of block/powder supply/distribution, fuel supply, and fuel supply adjustment, can solve the problems of boiler explosion, poor feeding, small volume, etc., to avoid explosion, The effect of improving accuracy and reducing the impact of stability

Inactive Publication Date: 2015-07-22
CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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  • Claims
  • Application Information

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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

Method used

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  • Pulverized coal storing and supplying system
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  • Pulverized coal storing and supplying system

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] like figure 1 As shown, the pulverized coal storage and supply system of the present invention includes a large powder bin 1, more than two buffer bins 2, more than two feeders 3, an upper powder pipe 4, several fluidization devices 5 and a monitoring system , the number of fluidization devices 5 is not limited, and in actual application, it is determined according to needs; the large powder silo 1 includes a cylindrical silo 11 and more than two conical silo 12, and the top of the cylindrical silo 11 is connected with a powder pipe 4, the bottom of the cylindrical bin 11 is fixedly connected to the top of each conical bin 12, and the bottom of each conical bin 12 is connected to each buffer bin 2 through a soft connection (not shown in the figure). On the top, the bottom of each buffer bin 2 is connected to each feeder 3 through a soft connecti...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K3/00F23N1/02F23N5/00
Inventor 徐尧尚庆雨王实朴徐通梁兴白一飞王永英张松牛芳蔡鹏裘星刘刚
Owner CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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