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Multicomponent co-combustion agent and use method thereof

A blending agent and multi-component technology, applied in the field of multi-component blending agents, can solve problems such as low combustion efficiency and inability to efficiently utilize fly ash, and achieve the effect of increasing strength and durability

Active Publication Date: 2008-12-03
中科院科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a multi-component admixture and its use method, which can effectively overcome the low combustion efficiency of coal-fired equipment in the prior art, which cannot be completely and efficiently Utilize technical defects such as fly ash

Method used

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  • Multicomponent co-combustion agent and use method thereof
  • Multicomponent co-combustion agent and use method thereof
  • Multicomponent co-combustion agent and use method thereof

Examples

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no. 1 example

[0040] The multi-component admixture is composed of main material and core material; among them, the main material includes calcium carbide slag, soda ash slag, quicklime or limestone; the core material includes mineralizer, salt melting medium and coke slag loosening agent, and the core material can specifically include silica fume stone, gypsum, industrial calcium chloride and barite. The multi-component admixture comprises the following components by weight percentage: 70% of calcium carbide slag, 5% of wollastonite, 5% of gypsum, 10% of industrial calcium chloride and 10% of barite.

[0041] The second embodiment of multi-component admixture of the present invention

[0042] The multi-component admixture is composed of main material and core material; among them, the main material includes calcium carbide slag, soda ash slag, quicklime or limestone; the core material includes mineralizer, salt melting medium and coke slag loosening agent, and the core material can specific...

no. 4 example

[0046] The multi-component admixture is composed of main material and core material; among them, the main material includes calcium carbide slag, soda ash slag, quicklime or limestone; the core material includes mineralizer, salt melting medium and coke slag loosening agent, and the core material can specifically include silica fume stone, gypsum, industrial waste and barite. The multi-component admixture comprises the following components by weight percentage: 70% of limestone, 5% of wollastonite, 2% of gypsum, 20% of industrial waste residue and 3% of barite.

no. 5 example

[0048] The multi-component admixture is composed of main material and core material; among them, the main material includes calcium carbide slag, soda ash slag, quicklime or limestone; the core material includes mineralizer, salt melting medium and coke slag loosening agent, and the core material can specifically include silica fume stone, gypsum, industrial waste and barite. The multi-component admixture comprises the following components by weight percentage: 80% of calcium carbide slag and soda ash slag, 2% of wollastonite, 10% of gypsum, 3% of industrial waste slag and 5% of barite.

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Abstract

The invention relates to a multi-doped sintering agent and the usage thereof. The multi-doped sintering agent consists of a main material and a core material, wherein the main material includes one or any combination of carbide slag, soda slug, quick lime or limestone; the core material includes mineralizer, salt-melting medium and coke slag bulking agent. The usage of the multi-doped sintering agent comprises the following steps: crushing, mixing and pulverizing each component of the multi-doped sintering agent; mixing the pulverized multi-doped sintering agent with coal to form a coal mixture; burning and calcining the coal mixture in a boiler; and cooling and collecting hydraulic binding material modified ash. The multi-doped sintering agent can reduce the carbon content of fly ash and reduce the coal consumption of the boiler and can achieve high-efficiency solid desulfurization. The hydraulic binding material active ash produced after the coal burning has wide purposes, thus achieving multiple purposes of one boiler and achieving good effects of fluidized-bed combustion boiler such as environment protection, energy conservation and high-efficiency waste utilization.

Description

technical field [0001] The invention relates to the field of boiler coal combustion, in particular to a multi-component admixture and its application method. Background technique [0002] Boilers are widely used equipment for producing heat, especially fluidized bed boilers (including fluidized bed furnaces, circulating fluidized bed boilers, etc.) are more and more popular among heat users due to their strong adaptability to coal types and energy saving. However, fluidized bed boilers also have the following disadvantages: [0003] (1) The coal consumption is high, and the thermal efficiency is up to 85%, which is lower than that of pulverized coal furnace and cyclone furnace. [0004] (2) The boiler wears a lot and the operating efficiency is low. The main reason is that the furnace coal needs to be granular, the circulation rate is about 30, and the average particle size of the circulating material is about 300 μm, so the wear and tear on the heat exchange pipes is larg...

Claims

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Application Information

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IPC IPC(8): C10L9/10
Inventor 邢克强李弘涛尚德忠蔡德良
Owner 中科院科技服务有限公司
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