Composite structure ceramic proppant and preparation method thereof

A composite structure and proppant technology, applied in the production of ceramic materials, chemical instruments and methods, earthwork drilling and mining, etc., can solve the problems of high sintering temperature, high product density, high energy consumption, etc. The effect of mechanical strength and process method is simple and easy to implement

Active Publication Date: 2017-08-18
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to high firing temperature, high product density, high energy consumption and high cost, it cannot meet user requirements
[0004] Chinese invention patent application (application publication number: CN1730422A, application publication date: 2006-02-08) discloses a high-titanium petroleum fracturing proppant and its production method, the chemical composition and mass percentage of the high-titanium petroleum fracturing proppant The content is: 5-45% high-titanium blast furnace slag, 10-30% blast furnace brick, 17-77% bauxite and 4-8% composite sintering agent. This product has good compression resistance, The disadvantage is that the main raw material is still high alumina bauxite

Method used

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  • Composite structure ceramic proppant and preparation method thereof
  • Composite structure ceramic proppant and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] A ceramic proppant with a composite structure, which contains the following components and mass percentages: steel slag: 63.8%, fly ash: 5%, kyanite micropowder: 8%, silica micropowder: 8%, clay: 15%, carboxylate Methylcellulose: 0.2%.

[0040] Carry out following process step operation according to the mass percent content of above-mentioned each component:

[0041]1) Preparation of powder: the cooled steel slag (open-hearth slag of WISCO is preferred in this embodiment) is sequentially crushed, dried, pulverized, ground and mixed uniformly to obtain steel slag powder, and the particle size of the steel slag powder is 75 μm or less , the present embodiment is preferably 75 μm; fly ash and clay (preferred kaolin in this embodiment) are pulverized, ground and mixed uniformly to obtain fly ash powder and clay powder respectively, ensuring that the particle size of fly ash powder is 75 μm or 75 μm Hereinafter, in this embodiment, it is preferably 75 μm, and the particle s...

Embodiment 2

[0050] A ceramic proppant with a composite structure, which contains the following components and mass percentages: steel slag: 69.5%, fly ash: 15%, kyanite micropowder: 5%, silica micropowder: 5%, clay: 5%, carboxylate Methylcellulose: 0.5%.

[0051] Carry out following process step operation according to the mass percent content of above-mentioned each component:

[0052] 1) Preparation of powder: the cooled steel slag (the converter slag of Wuhan Iron and Steel Co., Ltd. is preferred in this embodiment) is sequentially crushed, dried, pulverized, ground and mixed uniformly to obtain steel slag powder, and the particle size of the steel slag powder is below 60 μm; Fly ash and clay (the preferred bentonite in this embodiment) are pulverized, ground and mixed uniformly to obtain fly ash powder and clay powder respectively, ensuring that the particle diameter of fly ash powder is below 60 μm, and the particle diameter of clay powder is below 40 μm;

[0053] 2) batching: gettin...

Embodiment 3

[0061] A ceramic proppant with a composite structure, which contains components and mass percentages: steel slag: 74.5%, fly ash: 10%, kyanite micropowder: 5%, silica micropowder: 5%, clay: 5%, carboxylate Methylcellulose: 0.5%.

[0062] Carry out following process step operation according to the mass percent content of above-mentioned each component:

[0063] 1) Preparation of powder: the cooled steel slag (the electric furnace slag of Wuhan Iron and Steel Co., Ltd. is preferred in this embodiment) is sequentially crushed, dried, pulverized, ground and mixed uniformly to obtain steel slag powder, and the particle size of the steel slag powder is below 75 μm; Fly ash and clay (preferred illite in this embodiment) are pulverized, ground and mixed evenly to obtain fly ash powder and clay powder respectively, ensuring that the particle diameter of fly ash powder is below 75 μm, and the particle diameter of clay powder is below 45 μm ;

[0064] 2) batching: getting mass percent ...

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Abstract

The invention discloses a composite structure ceramic proppant and a preparation method thereof and belongs to the technical field of ceramic composite materials prepared from industrial wastes. The composite structure ceramic proppant comprises the following components in percentage by weight: 50-80% of steel slag, 3-20% of coal ash, 2-30% of kyanite micro-powder, 3-10% of silica powder, 2.5-20% of clay and 0.2-2% of carboxymethylcellulose. The preparation method comprises the process steps of preparing powder, burdening, balling, drying, firing, naturally polishing and carrying out surface treatment. The steel-making slag is taken as a main raw material and industrial solid wastes are effectively utilized, so that the prepared product has a crystallite-fiber composite structure, has relatively high mechanical strength, a smooth surface and acid erosion resistance, can be widely applied to the technical fields of an oil and gas drilling proppant, a concrete aggregate and a plastic filler.

Description

technical field [0001] The invention relates to the technical field of using waste materials to prepare ceramic composite materials, in particular to a composite structure ceramic proppant and a preparation method thereof. Background technique [0002] At present, there are more than 400 million tons of steel slag accumulated in China, and the amount of slag discharged by millions of tons is increasing rapidly every year. The disposal and accumulation of a large amount of steel slag occupies more and more land, pollutes the environment, causes waste of resources, and affects the sustainable development of the iron and steel industry and the entire national economy. Therefore, it is necessary to study the reduction, resource utilization and high-value comprehensive utilization of steel slag. People have developed a variety of ways to comprehensively utilize steel slag, mainly including several fields such as metallurgy, building materials, agricultural utilization, and engin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80C04B33/135C04B33/138C04B33/36
CPCC04B33/1352C04B33/138C04B33/36C04B2235/3217C09K8/80Y02P40/60
Inventor 何明生李博文韩斌刘继雄李灿华周旺枝刘孟陈华圣
Owner 武汉钢铁有限公司
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