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A technology for grate and slag, which is applied in the field of grate and preparation of incinerator, can solve the problems of low strength performance, short service time, poor wear resistance, etc., so as to improve wear resistance, prolong service life and reduce economic effect of loss
Inactive Publication Date: 2015-04-22
辽宁省兴城市特种铸钢有限公司
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[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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[0045] The stainless steels in Table 1 were respectively selected, and the grate of the incinerator was made according to the preparation method of the grate above.
[0046] Table 1: Component list of each grate (each component is calculated by weight ratio)
[0047]
[0048] Wherein, the grate in Comparative Example 1 is prepared according to the traditional grate preparation method, that is, each component is put into a melting furnace for melting, and then poured and molded to complete the preparation.
[0049] The mechanical properties of the incinerator grate made of the above-mentioned stainless steels with different components were tested, and the specific results are shown in Table 2.
[0050] Table 2: The performance test table of grate in embodiment 1~3 and comparative example 1
[0051]
[0052] It can be seen from the test data that the grate provided by the present invention has the characteristics of high strength without breaking, good wear resistance, stro...
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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 ...
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