A self-discharging device for ash conveying system
A kind of ash conveying and self-draining technology, applied in the field of ash conveying system, can solve the problems of ash hopper collapse, full ash, increase of ash natural sedimentation rate, etc., achieve high ash discharge efficiency, avoid collapse, and easy to use
Inactive Publication Date: 2018-05-25
DATANG GUIZHOU YEMAZHAI POWER GENERATION
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Problems solved by technology
[0002] At present, in order to cooperate with the installation of denitrification equipment, the outlet of the diverting flue generally needs to be heightened. The change of the diverting flue leads to an increase in the natural ash sedimentation rate inside it. Under the condition of full load, the output of the ash conveying pump will be difficult to meet Ash discharge requirements, when the ash hopper in the diversion flue is full of ash, it will reduce the denitrification efficiency, and it will even lead to accidents such as the collapse of the ash hopper if it is full of ash for a long time
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[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0016] refer to Figure 1-2 As shown, the ash conveying system of the present invention is a self-ash discharge device. The ash conveying system includes a diversion flue 1 and a discharge pipe 2. The diversion flue 1 communicates with the bottom flue 4 of the air preheater through the discharge pipe 2, and the flue gas Road 4 is connected with an induced draft fan 5, and the automatic ash discharge device includes a buffer box 6, a connecting main pipe 7 and a connecting branch pipe 8, the buffer box 6 is installed on the top of the diverting flue 1, and communicates with the inside of the diverting flue 1, One end of the connecting branch pipe ...
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The invention discloses a self-discharging device for an ash conveying system. The ash conveying system includes a diverting flue and a discharge pipe. The diverting flue communicates with the bottom flue of an air preheater through the discharge pipe. Connected, the automatic ash discharge device includes a buffer box, a connecting main pipe and a connecting branch pipe. The buffer box is installed on the top of the diverting flue and communicated with the inside of the diverting flue. A discharge valve is connected to the connecting main pipe, and the connecting main pipe is connected to the discharge pipeline, and a first emptying valve is also provided on the connecting main pipe, the first emptying valve is located on one side of the discharging valve, and the first emptying valve is used for Vent or isolate connecting mains from atmosphere. The invention can carry out the auxiliary ash discharge operation in time, has high ash discharge efficiency and is convenient to use, and effectively avoids the occurrence of ash hopper collapse accidents caused by full ash and the like.
Description
technical field [0001] The invention relates to the technical field of an ash conveying system, in particular to a self-discharging device for an ash conveying system. Background technique [0002] At present, in order to cooperate with the installation of denitrification equipment, the outlet of the diverting flue generally needs to be heightened. The change of the diverting flue leads to an increase in the natural ash sedimentation rate inside it. Under the condition of full load, the output of the ash conveying pump will be difficult to meet Ash discharge requirements, when the ash hopper in the diversion flue is full of ash, it will cause a decrease in denitrification efficiency, and it will even cause accidents such as the collapse of the ash hopper if it is full of ash for a long time. Contents of the invention [0003] The present invention mainly solves the technical problems existing in the prior art, so as to provide a timely auxiliary ash discharge, high efficie...
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IPC IPC(8): F23J3/02
CPCF23J3/02
Inventor 郭亚黎论
Owner DATANG GUIZHOU YEMAZHAI POWER GENERATION