Pneumatic ash conveying device in sludge incineration process and its control method

Abstract

The invention discloses a pneumatic ash conveying device used in the sludge incineration technology and a control method for the pneumatic ash conveying device, and relates to the technical field of sludge ash conveying. Sludge ash in an ash conveying pipe can be divided into a plurality of sludge ash sections to be conveyed forwards, and the total conveying amount of the sludge ash in the pipe can be controlled. The pneumatic ash conveying device comprises a pneumatic ash conveying device body, an automatic sludge ash conveying amount adjuster and a controller. The pneumatic ash conveying device body comprises a sludge ash tank, the ash conveying pipe, a bin, an air injection pump and an ash inlet pipe. A side pipe wall hole is formed in the side pipe wall of one end of the ash conveying pipe. The two ends of the ash inlet pipe are in butt joint to a discharging port of the automatic sludge ash conveying amount adjuster and the side pipe wall of one end of the ash conveying pipe correspondingly. An air injection pipe of the air injection pump is in butt joint to one end of the ash conveying pipe, and the other end of the ash conveying pipe is in butt joint to a feeding port of the bin. An ash outlet of the sludge ash tank is in butt joint to a feeding port of the automatic sludge ash conveying amount adjuster. The control end of the air injection pump and the control end of the automatic sludge ash conveying amount adjuster are connected with the controller.

Description

technical field [0001] The invention relates to the technical field of mud transportation, in particular to a pneumatic ash transportation device in a sludge incineration process and a control method thereof. Background technique [0002] The pneumatic ash conveying device in the existing sludge incineration process is generally directly transported by pipelines, but because the marl in the pipeline is continuous and uninterrupted during the transportation, that is to say, when the marl is transported, the ash in the pipeline The front and rear plasters in the pipe are closely connected, and there is plaster everywhere in the pipeline. Since the dry humidity of each section of plaster is generally different, the degree of blockage of each section of plaster to the pipe wall is also different, and it is easy to lead to pipe blockage. And because the degree of tightness of each section of marl in the pipe is generally different, it is difficult to control and adjust the amoun...

AI Technical Summary

Problems solved by technology

[0002] The pneumatic ash conveying device in the existing sludge incineration process is generally directly transported by pipelines, but because the marl in the pipeline is continuous and uninterrupted during the transportation, that is to say, when the marl is transported, the ash in the pipeline The front and rear plasters in the pipe are closely connected, and there is plaster everywhere in the pipeline. Since the dry humidity of each section of plaster is generally different, the degree of blockage of each section of plaster to the pipe wall is also different, and it is easy to lead to pipe blockage

And because the tightness of each section of marl in the pipe is generally different, it is not easy to control and adjust the conveying amount of marl

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