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Garbage incinerator boiler tube applied to working condition with temperature lower than 400 DEG C and production method thereof

A technology of waste incinerator and production method, which is applied in the direction of combustion method, incinerator, process efficiency improvement, etc., to achieve the effects of prolonging service life, excellent corrosion resistance and wear resistance

Pending Publication Date: 2022-01-25
深圳优易材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the existing waste incinerator boiler tubes have more or less disadvantages, for example, there is room for further improvement in the mechanical properties of the pipeline, and there is room for further improvement in the anti-corrosion performance. In order to solve the above-mentioned existing technical problems, this application proposes an application The waste incinerator boiler tube and its production method at a temperature lower than 400°C. The waste incinerator boiler tube includes: a waste incinerator boiler tube body and a waste incinerator boiler tube anti-corrosion layer. The waste incinerator boiler tube The tube body is made of the first component, and the anti-corrosion layer of the waste incinerator boiler tube is made of the second component. The composition and weight percentage of the second component are: chromium: 20-23% , aluminum: 5-9%, copper: 2-6%, vanadium: 1-3%, carbon: 0.02-0.15%, boron 2-5%, silicon 1-3%, the balance is nickel and unavoidable impurities

Method used

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  • Garbage incinerator boiler tube applied to working condition with temperature lower than 400 DEG C and production method thereof
  • Garbage incinerator boiler tube applied to working condition with temperature lower than 400 DEG C and production method thereof
  • Garbage incinerator boiler tube applied to working condition with temperature lower than 400 DEG C and production method thereof

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Embodiment 1

[0057] Embodiment 1: a production method of a waste incinerator boiler tube applied to a temperature condition lower than 400 ° C, comprising the following steps:

[0058] Step S1, converter smelting to obtain rough molten steel:

[0059] The weight percent content of the first component by the converter is: the components and weight percent content of the first component are: carbon: 0.12%, silicon: 0.46%, manganese: 0.35%, phosphorus: 0.014%, sulfur: 0.010% , nickel: 32%, chromium: 22%, molybdenum: 3%, copper: 0.4%, tungsten 0.6%, aluminum: 0.3%, titanium: 0.24%, the rest is Fe and inevitable impurities, refining, to obtain crude molten steel;

[0060] Step S2, refining to obtain refined molten steel:

[0061] The crude molten steel smelted in step S1 is passed through a refining furnace to reduce the inclusion content in the steel as much as possible, so as to ensure stable performance and good surface quality of the product, and obtain refined molten steel.

[0062] In ...

Embodiment 2

[0085] Embodiment 2: the preparation method of the anti-corrosion layer 12 of the waste incinerator boiler tube 1 further comprising the waste incinerator boiler tube 1, comprising the following steps:

[0086] Step S10: Smelting the raw materials of the second component to obtain a bar:

[0087] The components and weight percentages of the second component are: chromium: 22%, aluminum: 6%, carbon: 0.08%, boron 3%, silicon 2%, and the balance is nickel and inevitable impurities. Electric smelting and casting into bars, wherein the smelting temperature is 1050±30℃;

[0088] Step S11: Use a wire drawing machine to draw the bar to obtain a special wire for the anti-corrosion layer 12 of the boiler tube of the waste incinerator:

[0089] Put the bar into the electric furnace at 800-900℃ for heat treatment for 9-12 hours, anneal it in the vacuum annealing furnace at 150-250℃ for 1-3 hours, and use the wire drawing machine to reduce the diameter and draw for 8-10 times. Special wi...

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Abstract

The invention discloses a garbage incinerator boiler tube applied to the working condition with the temperature lower than 400 DEG C and a production method thereof. The garbage incinerator boiler tube comprises a garbage incinerator boiler tube body and a garbage incinerator boiler tube anti-corrosion layer, wherein the garbage incinerator boiler tube body is made of a first component, the garbage incinerator boiler tube anti-corrosion layer is made of a second component, and the second component comprises, by weight, 20-23% of chromium, 5-9% of aluminum, 2-6% of copper, 1-3% of vanadium, 0.02-0.15% of carbon, 2-5% of boron, 1-3% of silicon and the balance nickel and inevitable impurities. The overall layout of a production line is reasonable, the automation degree is high, a pipe fitting is arranged in a double-layer manner, and dual protection is realized.

Description

technical field [0001] The invention relates to the technical field of waste incinerator boiler tubes, in particular to a waste incinerator boiler tube used in a temperature condition below 400°C. Background technique [0002] In recent years, due to the adverse impact of solid waste on the environment, the problem of garbage disposal has become a global environmental problem. At present, domestic waste disposal methods mainly include: incineration method, composting method, landfill method, and harmless comprehensive treatment method. Among them, incineration of waste for power generation is the most effective way to realize the recycling, reduction and harmlessness of domestic waste. At present, more than 2,000 domestic waste incineration plants have been built in 35 developed countries and regions. At present, more than 90% of the waste in Japan is treated by incineration, and the proportion of waste incineration is as high as 80% in Switzerland, and about 40% in the Uni...

Claims

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Application Information

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IPC IPC(8): C23C4/073C23C4/129C23C4/131C23C4/16F23G5/44C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/50C22C19/05C22C33/04C22C1/02B21C37/08C21D9/08
CPCC23C4/073C23C4/129C23C4/131C23C4/16F23G5/44C22C38/002C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/50C22C19/058C22C33/04C22C1/023B21C37/08C21D9/08Y02P10/20
Inventor 戴雷
Owner 深圳优易材料科技有限公司
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