Reciprocating rolling fire grate segment for garbage incinerator

Abstract

The invention relates to a reciprocating rolling fire grate segment for a garbage incinerator. The reciprocating rolling fire grate segment comprises a fire grate fixed support, a fire grate movable support, fixed fire grate segment bodies, movable fire grate segment bodies, a heat-resisting casting body, wheels, pin shafts and fasteners. The heat-resisting casting body is arranged on the contact face where the fire grate segment reciprocates. The pin shafts penetrate the centers of the wheels, and the wheels are arranged in grooves of the heat-resisting casting body and fixed to the walls of the grooves of the heat-resisting casting body through the pin shafts. The fasteners are arranged at the tail ends of the pin shafts to fasten the wheels. The movable fire grate segment bodies and the fixed fire grate segment bodies are in reciprocating rolling rubbing on the wheel contact faces so as to reduce the friction coefficient and abrasion. According to the reciprocating rolling fire grate segment for the garbage incinerator, a set of wheel device is additionally arranged on the basis of an existing fire grate segment, the abrasion form of the existing fire grate segment is changed, original sliding abrasion of the movable fire grate segment bodies and the fixed fire grate segment bodies is converted into rolling abrasion, and therefore the abrasion of the fire grate segment is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of waste incineration power generation, and in particular relates to a novel reciprocating rolling fire grate for a waste incinerator. Background technique [0002] With the rapid development of domestic urbanization, waste incineration technology has been more and more widely used for waste disposal methods that can save land resources, make waste disposal harmless, reduce volume and recycle waste, among which mechanical grate It is the most widely used waste incineration technology. [0003] The most important component of a waste incinerator is the incinerator grate system. The grate system is responsible for the transportation of garbage in the furnace, the disturbance of air and garbage, so as to improve the combustion efficiency. [0004] Most of the existing grate systems adopt reciprocating grate, and the grate is composed of movable grate pieces and fixed grate pieces arranged alternately. There ...

AI Technical Summary

Problems solved by technology

[0006] The wear between the grate and the grate is the most important reason for the replacement of the grate. The grate is generally made of the same material for sliding wear. The grate usually needs to be replaced after three years of use. The wear of the grate accounts for less than 3% of the mass of the grate itself. Therefore, the use of new wear-resistant materials will not only increase the cost, but also cannot greatly improve the service life of the grate

Images