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Light microporous ceramsite sand and preparation process thereof

A preparation process and technology of ceramsite sand, which is applied in the field of proppant to achieve the effect of improving screening effect, wide application range and low density

Pending Publication Date: 2019-12-24
河南祥盛陶粒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects and problems existing in the preparation of ceramsite sand from solid waste at present, the present invention provides a light microporous ceramsite sand prepared from solid waste and its preparation process

Method used

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  • Light microporous ceramsite sand and preparation process thereof
  • Light microporous ceramsite sand and preparation process thereof
  • Light microporous ceramsite sand and preparation process thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0028] Embodiment 1: This embodiment provides a light microporous ceramsite sand and its preparation process. The raw materials used in the preparation include 35 parts of coal gangue, 50 parts of coke gems, 5 parts of dolomite, 25 parts of purple sand slag, and 8 parts of spinel. parts, 10 parts of perlite, 10 parts of silica fume; among them, Al in burnt gem 2 o 3 The content is 37.8%, SiO 2 The content is 42.3%; CaCO in dolomite 3 The content is 30.4%, MgCO 3 The content is 23.9%.

[0029] Preparation process: the specific process is as follows figure 1 shown;

[0030] Step 1, pulverizing coal gangue, coke gemstone, dolomite, purple sand slag, spinel and perlite respectively, pouring them into a ball mill to grind to obtain mixture powder, and passing the mixture powder through a 325-400 mesh sieve;

[0031] Step 2. Add the mixed coal gangue, coke gemstone, dolomite, purple sand slag, spinel and perlite into the granulator for stirring. During the stirring process, s...

Embodiment 2

[0037] Embodiment 2: the lightweight microporous ceramsite sand of the present embodiment, the raw materials used are the same batch as the raw materials used in embodiment 1, and the difference from embodiment 1 is that the raw materials used include 45 parts of coal gangue and 40 parts of coke gemstones, 5 parts of dolomite, 25 parts of purple sand slag, 8 parts of spinel, 10 parts of perlite, and 10 parts of microsilica.

Embodiment 3

[0038] Embodiment 3: the lightweight microporous ceramsite sand of the present embodiment, the raw materials used are the same batch as the raw materials used in embodiment 1, and the difference from embodiment 1 is that the raw materials used include 30 parts of coal gangue and 60 parts of coke gemstones, 6 parts of dolomite, 20 parts of purple sand slag, 10 parts of spinel, 5 parts of perlite, 7 parts of silica fume.

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Abstract

The invention belongs to the technical field of propping agents, and particularly relates to light microporous ceramsite sand and a preparation process thereof. The lightweight microporous ceramsite is prepared from coal gangue, flint clay, dolomite, purple sand slag, spinel, perlite and silicon micropowder according to a specific ratio and process. By using solid wastes such as coal gangue and adding purple sand slag, excessive exploitation of resources such as high-alumina bauxite can be reduced, solid waste resources can be recycled, and the method has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of proppant, and in particular relates to light microporous ceramsite sand and a preparation process thereof. Background technique: [0002] As a kind of aggregate, ceramsite is widely used in construction, chemical industry, metallurgy and other fields because of its advantages of light weight, low density and good compression resistance. As a fracturing proppant, it plays an important role in the process of oil and gas exploitation. From the perspective of raw materials, it mainly includes clay ceramsite, bauxite ceramsite, shale ceramsite, etc. In recent years, with the rapid development of the industry, the use of ceramsite proppant is also increasing. However, for a long time, the raw materials for the production of ceramsite are mainly high-alumina bauxite, clay and shale, which makes my country's land resources and natural minerals The massive exploitation of resources not only leads to the destructio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B38/02B07B1/06B07B1/08
CPCC04B33/1324C04B38/009B07B1/06B07B1/08C04B2235/321C04B2235/3222C04B2235/3206C04B2235/3463C04B2235/3418C04B2235/5436C04B2235/6562C04B2235/6567C04B2235/77C04B2235/96C04B38/02C04B38/0067Y02P40/60
Inventor 张建中马俊伟刘春香张会芳
Owner 河南祥盛陶粒有限公司
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