Fire grate and manufacturing method thereof

Abstract

The invention provides a fire grate and a manufacturing method of the fire grate. The fire grate is made of stainless steel composed of, by weight, 1.6 percent to 2.0 percent of C, 1.5 percent to 2.0 percent of Si, 0.8 percent to 1.0 percent of Mn, 28 percent to 30 percent of Cr, 1.5 percent to 3.0 percent of Ni, 1.0 percent to 1.5 percent of Mo, 0.8 percent to 1.5 percent of Cu, 0.4 percent to 1.0 percent of V, 0.15 percent to 0.2 percent of Ti, 0.1 percent to 0.15 percent of Re, 0.0 3 percent to 0.05 percent of B, no more than 0.03 percent of P, no more than 0.03 percent of S and the balance Fe. The fire grate is manufactured through the procedures of material selecting, drying, smelting, pre-deoxygenation, sampling analysis, final deoxygenation, alloying, deslagging and pouring. The fire grate has the advantages of being high in strength, not prone to breaking, good in abrasion resisting performance, resistant to corrosion, long in service life, simple in manufacturing process and the like.

Description

technical field [0001] The invention relates to components of an incinerator, and in particular provides a fire grate for an incinerator and a preparation method thereof. Background technique [0002] The incinerator is a kind of harmless treatment equipment commonly used in the harmless treatment of medical and domestic waste and animals. Its principle is to use coal, fuel oil, gas and other fuels to burn and carbonize the objects to be treated at high temperature to achieve the purpose of disinfection. Among them, the grate is an important component of the incinerator. The working principle of the incinerator is as follows: the material to be incinerated enters the inclined downward grate through the feeding hopper, and the grate is divided into drying Due to the staggered movement between the grates, the materials to be incinerated will be pushed to the outlet section of the incinerator, so that the materials to be incinerated will pass through each area on the grate in ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a fire grate and its preparation method, to at least solve the problems of low strength performance, easy fracture, poor wear resistance and short service life of the previous fire grate.

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