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Circulating fluidized bed boiler bed material feeding system

A circulating fluidized bed and bed material technology, which is applied in the field of circulating fluidized bed boiler bed material addition system, can solve the problems of complex structure, difficult maintenance, large investment, etc., and achieve the effect of simple operation and simple feeding system

Inactive Publication Date: 2016-12-07
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a circulating fluidized bed boiler bed material adding system, which solves the technical problems of large investment, complex structure and difficult maintenance in the circulating fluidized bed boiler bed material adding system

Method used

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  • Circulating fluidized bed boiler bed material feeding system

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Embodiment Construction

[0009] The present invention is described in detail below in conjunction with accompanying drawing:

[0010] A circulating fluidized bed boiler bed material addition system, comprising a circulating fluidized bed boiler body 3, a compressed air tank 1 and a limestone powder delivery tank 2, a boiler manhole 6 is arranged on the circulating fluidized bed boiler body 3, and a limestone The top of the powder delivery tank 2 is connected with a compressed air delivery hose 4, the other end of the compressed air delivery hose 4 is connected with the compressed air tank 1, and the bottom end of the limestone powder delivery tank 2 is connected with a bed material delivery pipeline 7, The other end of the bed material delivery pipe 7 communicates with the boiler manhole 6 provided on the circulating fluidized bed boiler body 3 .

[0011] A second compressed air delivery hose 5 is arranged between the bed material delivery pipeline 7 and the compressed air delivery hose 4 . The trans...

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Abstract

The invention discloses a circulating fluidized bed boiler bed material feeding system. The problems that circulating fluidized bed boiler bed material feeding systems are large in investment, complex in structure and difficult to maintain are solved. The circulating fluidized bed boiler bed material feeding system comprises a circulating fluidized bed boiler body (3), a compressed air tank (1) and a limestone flour conveying tank (2). A boiler inlet (6) is formed in the circulating fluidized bed boiler body (3). A compressed air conveying hose (4) is connected to the top end of the limestone flour conveying tank (2). The other end of the compressed air conveying hose (4) communicates with the compressed air tank (1). A bed material conveying pipeline (7) is connected to the bottom end of the limestone flour conveying tank (2). The other end of the bed material conveying pipeline (7) communicates with the boiler inlet (6) formed in the circulating fluidized bed boiler body (3). The material feeding system is simple and easy and convenient to operate.

Description

technical field [0001] The invention relates to a system for adding bed material to a circulating fluidized bed boiler, in particular to a system for adding bed material to a circulating fluidized bed boiler by using a tank truck. Background technique [0002] When the circulating fluidized bed starts up or conducts dynamic field tests, it is necessary to add bed material to the furnace many times to meet the requirements of bed materials with different thicknesses during boiler start-up and test. At present, circulating fluidized bed boilers operating in China are all equipped with a bed material addition system. The general bed material addition system is as follows: a silo is configured, a weighing belt feeder is installed under the silo, and a secondary scraper machine is connected behind the feeder, and the scraper machine is installed on each corresponding coal feeder. There is a feeding port, and each feeding port is equipped with an adjustable baffle door, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/22
CPCF23C10/22F23C2206/10
Inventor 邢秀峰刘众元房玲史晓华刘建华李凯勇李冉
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER