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Gangue paste cementing material and preparation method thereof, gangue paste filling material and preparation method thereof

A technology of cementing material and gangue, which is applied in the field of mine filling, can solve the problems of high raw material cost and low strength, and achieve the effects of reduced production cost, high economic value, and improved coagulation strength and coagulation speed

Active Publication Date: 2022-03-29
河北充填采矿技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low strength and high raw material cost of the existing gangue paste filling material, the present invention provides a gangue paste cementing material and its preparation method, gangue paste filling material and its preparation method

Method used

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  • Gangue paste cementing material and preparation method thereof, gangue paste filling material and preparation method thereof
  • Gangue paste cementing material and preparation method thereof, gangue paste filling material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A meteeration of a meteorite, composed of components of the following mass parts:

[0036] 20 parts of silicate cement, 2 sulfoal saline cement clinkers, 5 modified gypsum, 60 parts of the mineral powder, 5 parts of limestone powder, 0.2 sodium silicate, and 2 additions.

[0037] Among them, the fineness of the silicate cement clinker is between 350-400;

[0038] The sulumide cement clinker is calcined by aluminum aluminum, limestone, gypsum and boric acid after calcination by 1300 ° C, and the powder grinding to a specific surface area ≥ 460m. 2 / kg is obtained, the mass ratio of the aluminum aluminum, limestone, gypsum and boric acid is 30: 45: 8: 1, and the content of alumina in the sulfur-aluminate cement clinker is 29%;

[0039] The external agent is composed of hydroxymethylcellulose, polyacrylamide, high-efficiency water reduction and polycarboxylate, a mass ratio of 2: 1: 1: 1; wherein the high-efficiency water reduction agent is 2: 1 by mass ratio of 2: 1. Calcium...

Embodiment 2

[0045] A meteeration of a meteorite, composed of components of the following mass parts:

[0046] 25 copies of silicate cement, 3 sulfoside cement clinkers, 8 modified gypsum, 65 parts of mineral powder, 8 pieces of limestone powder, 0.25 sodium silicate, and additives: 3 parts.

[0047] Among them, the fineness of the silicate cement clinker is between 350-400;

[0048] The sulfosulctate cement clinker is calcined by aluminum aluminum bauxite, limestone, gypsum and boric acid after calcination of 1350 ° C, powder grinding to a specific surface area ≥ 460m 2 / kg is obtained, the aluminum aluminum, limestone, gypsum and blend of boric acid is 36: 50: 15: 1.5, and the content of alumina in the sulfurate cement clinker is 32%;

[0049] Hydroxymethylcellulose sodium, polyacrylamide, high-efficiency water reducer, and polycarboxylate is composed of hydroxymethylcellulose, polyacrylamide, high-efficiency water reducer, and polycarboxylate; wherein the high-efficiency water reduction age...

Embodiment 3

[0055] A meteeration of a meteorite, composed of components of the following mass parts:

[0056] 30 parts of silicate cement, 4 copies of sulumate cement, 10 modified gypsum, 70 ore powder, 10 limestone powder, 0.3 sodium silicate, and 4 universal.

[0057] Among them, the fineness of the silicate cement clinker is between 350-400;

[0058] The sulfoside cement clinker is calcined by aluminum aluminum, limestone, gypsum and boric acid after calcination of 1400 ° C, powder grinding to a specific surface area ≥ 460m 2 / kg is obtained, the mass ratio of the aluminum aluminous, limestone, gypsum and boric acid is 42: 58: 20: 2, and the content of alumina in the sully aluminate cement clinker is 35%;

[0059] The external agent consists of a mass ratio of 3: 2: 2: 2: 2: polyacrylamide, high-efficiency water reducer, and polycarboxylate; wherein the high-efficiency water reduction is from a mass ratio of 3: 2. Calcium sulfate and sodium ligno sulfonate; polycarboxylate uses a modified...

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Abstract

The invention relates to the technical field of mine filling, and specifically discloses a gangue paste cementing material and a preparation method thereof, and a gangue paste filling material and a preparation method thereof. The gangue paste cementing material includes the following components in parts by mass: 20-30 parts of Portland cement clinker, 2-4 parts of sulphoaluminate cement clinker, 5-10 parts of modified gypsum, 60 parts of mineral powder ‑70 parts, 5‑10 parts of limestone powder, 0.2‑0.3 parts of sodium silicate, 2‑4 parts of admixture. The gangue paste filling material includes the following components in mass percentage: 2.5-3% of the gangue paste cementing material, 16-18.5% of coal gangue, 5-6% of fly ash, and the balance of water. The gangue paste cementing material of the present invention can replace cement as a cementing material to play a role in the gangue paste filling, reduce the production cost of the gangue paste filling, and can greatly improve the setting strength and setting speed of the gangue paste filling .

Description

Technical field [0001] The present invention relates to the field of mine filling technology, and more particularly to a gangluine paste gum tester and a preparation method thereof, a gangue paste body charger and a preparation method thereof. Background technique [0002] The sputum of the meteorite is the sputum, fly ash, slag, inferior soil, urban waste, such as the coal mine, and the municipal waste of solid waste in the ground into a critical flow rate, which does not need to dehydrate, and use the filling pump or gravity. The slurry is delivered to the well and fill the vacuum area. [0003] At present, the glue of the gangine cream is mostly in the cost of cement and gangine cream. The cement is more than 45% of its total filling cost, thereby making the filling cost of the gangine cream filling universally highly high It has a certain economic pressure to the mine, which has seriously restricts the application and development of filling mining technology. Although there i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B7/32
CPCC04B28/26C04B7/32C04B2111/00637C04B2201/50C04B7/02C04B22/143C04B18/142C04B14/28C04B24/383C04B24/2652C04B2103/302C04B18/12C04B18/08
Inventor 贾靖卢志敏杨洪增秦大健郝永超王学伟王英董小娟周金艳曾瑞萍刘艳高泽刘子萌沙漠菊张燕宋佳
Owner 河北充填采矿技术有限公司
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