Air-cooled type mechanical slag extractor for dry slag extracting system

Abstract

Disclosed is an air-cooled type mechanical slag extractor for a dry slag extracting system which is used in a thermal power plant. According to the mechanical slag extractor, by means of mechanical power, ash residues inside a slag hopper are filtered, smashed and extracted, a motor and a gear reducer transmit the power to a drive rolling shaft through the connection of a chain wheel and a chain, a wheel gear on the drive rolling shaft is meshed with an adjacent wheel gear on a driven rolling shaft for transmitting the power, blades and blade retainer rings are evenly distributed on each of the shafts, and the blades perform rotating motion with the moving of the shafts and are good in slag extracting effects. The drive rolling shaft and the driven rolling shaft are made of special metal materials and provided with excellent comprehensive mechanical performances after heat treatment, and namely, high strength and high toughness are appropriately matched with each other. The blades and the blade retainer rings are also made of special metal materials and subjected to casting molding and then to heat treatment to enable the mechanical slag extractor to have excellent comprehensive performances and good wear resistance and shock resistance so that the service life is prolonged, the production efficiency of the whole system is improved, manual work load of the whole slag extracting system and the maintenance costs generated by workers are reduced, the accident rate of the workers is reduced, and the normal operating of the whole system is guaranteed.

Description

Technical field: [0001] The invention relates to a mechanical slag removal device for an air-cooled dry slag discharge system in a thermal power plant, in particular to an air-cooled dry slag removal device that reduces clogging during the process of conveying ash in the slag hopper of a power plant, and helps the slag hopper to discharge slag and crush the ash. Slag removal system Mechanical slag remover. Background technique: [0002] At present, at the exit of the slag hopper of the dry slag discharge system of thermal power plants in my country, a screen is generally used to screen and discharge the ash medium. This structure is simple, and a metal screen is set between the slag hopper and the conveyor. The net is to filter, screen and discharge the ash passing through the slag hopper, and then fall to the conveyor belt under the slag hopper, and then transport it to other ash warehouses for storage or discharge. Blocks, so the particles are generally relatively large, wh...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency of the screen of the existing dry slag discharge system, the present invention provides a mechanical slag remover for the air-cooled dry slag discharge system, which is a mechanical slag discharge device. The slag remover not only replaces the screen, but also It can achieve the effects of filtering, crushing and slag discharge, and has a long service life, avoiding the clogging of the slag hopper, reducing unnecessary casualties, and the operation of this equipment is simple and flexible

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