Dry-type deslagging system capable of adjusting cooling air

A technology of dry slag discharge and dry slag discharger, which is applied to lighting and heating equipment, etc., can solve the problems of reduced boiler operation efficiency and large cooling air volume, and achieves low renovation operation cost, improved operation efficiency, and reduced demand. Effect

Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a comprehensive adjustment and utilization system for the cooling air of the dry slag discharge machine, so as to solve the

Method used

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  • Dry-type deslagging system capable of adjusting cooling air
  • Dry-type deslagging system capable of adjusting cooling air
  • Dry-type deslagging system capable of adjusting cooling air

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Experimental program
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specific Embodiment approach 1

[0024] Specific implementation mode one: combine figure 1 and figure 2 Note that the dry slag discharge system with adjustable cooling air in this embodiment includes a dry slag discharge machine 1-0, a slag bin 4-0, a primary air inlet duct 5-1, a camera 2-5, and a primary fan 5-0 and several boilers 2-0, the primary fan 5-0 communicates with the primary air inlet duct 5-1,

[0025] The dry slag discharger 1-0 includes several cooling air manual adjustment butterfly valves 1-1, the conveyor belt 1-4, the horizontal section 1-2 and the ascending section 1-3, and the horizontal section 1-2 is connected with the ascending section 1-3 , the conveyor belt 1-4 is successively laid on the horizontal section 1-2 and the ascending section 1-3, and several cooling air manual adjustment butterfly valves 1-1 are arranged in the horizontal section 1-2 sequentially along the horizontal direction, above the horizontal section 1-2 Several boilers 2-0 are arranged vertically, and several ...

specific Embodiment approach 2

[0032] Specific implementation mode two: combination figure 1 and figure 2 Note that the cooling air regulating baffle in this embodiment has an inclination angle of 30° to the horizontal plane.

[0033] It is advisable that the inclination angle between the cooling air regulating baffle plate and the horizontal plane is 30°. Under this inclination angle, when the cooling air regulating baffle (hereinafter referred to as "adjusting baffle") is opened, no slag will accumulate on the upper surface of the regulating baffle; when the regulating baffle is closed, slag can be accumulated evenly on the regulating baffle . Thereby effectively ensuring that the slag falling onto the adjusting baffle can fall down under the action of gravity, and at the same time effectively ensuring that the adjusting baffle has sufficient strength to withstand the impact. If the inclination angle is too large, when the adjusting baffle is closed, The slag is mainly concentrated in the front secti...

specific Embodiment approach 3

[0035] Specific implementation mode three: combination figure 1 and figure 2 It is explained that the cooling air regulating baffle plate of this embodiment is slidably connected with the inner wall of the bottom end 2-1 of the furnace along the inclined direction.

[0036] The cooling air adjustment baffle is opened and closed by sliding connection, which effectively reduces the resistance of the cooling air adjustment baffle to open and close, especially the resistance when the cooling air adjustment baffle is closed, compared with the "hanging" opening and closing method. The opening and closing space of the cooling air adjustment baffle is saved, and the working load of the motor is effectively reduced.

[0037] The undisclosed technical features in this embodiment are the same as those in the first or second specific embodiment.

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Abstract

The invention relates to a cooling air dry-type deslagging system, in particular to a dry-type deslagging system capable of adjusting cooling air. The problem that the volume of cooling air entering a hearth is too large according to an existing dry-type deslagging system, and therefore the operating efficiency of a boiler is reduced is solved. One end of a hot air exhausting pipeline is communicated with a horizontal section, and the other end of the hot air exhausting pipeline is communicated with a primary air inlet flue. A hot air exhausting fan inlet isolation door, a hot air exhausting fan inlet adjusting door, a hot air exhausting fan and a hot air exhausting fan outlet isolation door are sequentially arranged on the hot air exhausting pipeline. A cooling air adjusting baffle is obliquely arranged over a hydraulic opening-closing door, and the opening degree of the cooling air adjusting baffle ranges from 0 to 100%. A motor is arranged on the outer side wall of the boiler. The motor and the cooling air adjusting baffle are in driving connection through a valve rod. The dry-type deslagging system capable of adjusting cooling air is used for comprehensively adjusting cooling air inside the hearth of the boiler.

Description

technical field [0001] The invention relates to a cooling and air-drying slag discharge system. Background technique [0002] The slag discharge system is an important system in thermal power plants. In recent years, the dry slag discharge system has been more and more widely used in thermal power plants because of its advantages of water saving, power saving, simple system and wide application of dry slag. The basic principle of the dry slag removal system is to use the negative pressure of the furnace to suck the ambient air and conduct convective heat exchange with the hot slag, so that the slag is cooled, and the heated ambient air enters the furnace. From the perspective of energy conservation, the dry slag discharge system uses the ambient air to recover the heat of the slag, which is conducive to improving the operating efficiency of the boiler. [0003] But in fact, if the cooling air volume entering the furnace is large, the combustion center of the boiler will be ...

Claims

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Application Information

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IPC IPC(8): F23J1/06
Inventor 束继伟刘珊伯金宏达孟繁兵
Owner STATE GRID CORP OF CHINA
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