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Cementing material for modifying bulk filling body as well as preparation method and application of cementing material

A technology for a gelling material and a filling material, which is applied in the field of bulk filler-modified gelling material and its preparation, and achieves the effects of simple raw material ratio, high early strength, and easy-to-obtain raw material ratio.

Active Publication Date: 2021-07-23
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems existing in the existing filling materials, the present invention provides a gelling material for modifying bulk fillings and its preparation method and application. The composition of the gelling material for modifying bulk fillings The composition is simple, low cost, less water required, easy to configure, and has good cohesiveness and high early strength, realizing the rational utilization of solid waste resources

Method used

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  • Cementing material for modifying bulk filling body as well as preparation method and application of cementing material
  • Cementing material for modifying bulk filling body as well as preparation method and application of cementing material

Examples

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Effect test

Embodiment 1

[0025] A gelation material for scattered filling body, including the following mass percent components: 5% cement clinker, 85% of slag powder and 10% of desulfurized plaster powder.

[0026] The slag powder includes 34% calcium oxide by mass, 12% magnesium oxide, 34% of silica, and 3% of trioxide, and trioxide; the mine flour is quenched, dried. , Slag powder formed by breaking the powder, which has a particle size of 40-50 μm.

[0027] The mass content of the calcium sulfate in desulfurized plaster powder is 90%;

[0028] Cement clinker includes 60% calcium oxide by mass, 5% magnesium oxide, 25% of silica, and 4% of ferric dioxide.

[0029] The method for preparing the cement-modified gelation material is: the above cement clinker, the slag powder and the desulfurized plaster powder are mixed evenly after the above mass percentage.

[0030] Coal gangue filling material was prepared by the gelation material, which was composed of the above-described gelation material, coal gangue ...

Embodiment 2

[0034] A gelling material for scattered filling body, including the following mass percent components: 20% cement clinker, 77% of slag powder and 3% of desulfurized plaster powder.

[0035] The slag powder includes 38% calcium oxide by mass, 10% magnesium oxide, 31% of silica, 31%, tri-aluminum, and triodoxide by 5%; the mine flour is quenched, dried , Slag powder formed by breaking the powder, which has a particle size of 40-50 μm.

[0036] The mass content of the calcium sulfate in desulfurized plaster powder is 95%;

[0037] Cement clinker includes 65% calcium oxide, 3% magnesium oxide, 23% of silica, and 3% of ferric oxide, 3%, 3% of silica.

[0038]The method for preparing the cement-modified gelation material is: the above cement clinker, the slag powder and the desulfurized plaster powder are mixed evenly after the above mass percentage.

[0039] Coal gangue filling material was prepared by the gelation material, which consists of the above-described gelation material, coal...

Embodiment 3

[0043] A gelation material for scattered filling body, including the following mass percent components: 40% of cement clinker, 84% of slag powder and 6% of dethinated plaster powder.

[0044] The slag powder includes 37% calcium oxide according to the mass percent, 11% magnesium oxide, 32% of silica, and 5% of triodoxide, and triodoxide; the slag powder is quenched, drying the granulated blast furnace slag , Slag powder formed by breaking the powder, which has a particle size of 40-50 μm.

[0045] The mass content of the calcium sulfate in desulfurized plaster powder is 99%;

[0046] Cement clinker includes 63% calcium oxide by mass, 4% magnesium oxide, 24% silica, and 4% of triodoxide.

[0047] The method for preparing the cement-modified gelation material is: the above cement clinker, the slag powder and the desulfurized plaster powder are mixed evenly after the above mass percentage.

[0048] Coal gangue filling material was prepared by the gelation material, which consists of ...

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Abstract

The invention relates to the technical field of filling mining, and particularly discloses a cementing material for modifying a bulk filling body as well as a preparation method and application of the cementing material. The cementing material for modifying the bulk filling body comprises the following components in percentage by mass: 5%-20% of cement clinker, 70%-90% of slag powder and 3%-10% of desulfurized gypsum powder, the slag powder comprises the following components in percentage by mass: 34%-38% of calcium oxide, 7%-12% of magnesium oxide, 29%-34% of silicon dioxide, 15%-17% of aluminum oxide and 1%-5% of ferric oxide; and the mass content of calcium sulfate dihydrate in the desulfurized gypsum powder is 90%-99%. The cementing material for modifying the bulk filling body, provided by the invention, is simple in component composition, low in cost, low in water demand and easy to prepare, has good cohesiveness and relatively high early strength when being used as a raw material of the filling material, and realizes resource utilization of solid wastes.

Description

Technical field [0001] The present invention relates to the field of filling mining techniques, and more particularly to a gelation material for a diffuser modification and a preparation method thereof. Background technique [0002] As the main source of China, coal is a crucial role in the development of national economic development, accounting for about 60% of my country's energy source. However, a series of problems such as the surface collapse of the mineral area, water resources, and gangue row, etc., but the ecological environment of the mine is greatly affected, but the top panels caused by the collapse method are directly directly. Threatening the safety production of the mine. [0003] The important means of filling coal construction as a green mine can effectively solve the problem of mineral development and mineral ecological environment, and it is also solving "three times" (under construction, under railway, under water) coal An excellent method for waste problems. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/21C04B7/04
CPCC04B7/21C04B7/04Y02P40/10
Inventor 刘建功王翰秋王毅颖史艳楠闫善飞
Owner HEBEI UNIV OF ENG
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