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Green ecological cement with stone wastes as raw material and production method of green ecological cement

A technology of stone waste and ecological cement, applied in cement production and other directions, can solve the problems of arable land and water resources, air pollution, ecological environment damage, secondary environmental pollution, etc., and achieve the improvement of cement output, early strength and simple production process. Effect

Inactive Publication Date: 2015-01-28
XINCHENG COUNTY HONGYUN CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the stone powder particles are relatively fine, it will be mixed with rainwater to form stone powder mud in rainy days, and it will flow around. On sunny days, it will fly around with the wind, causing secondary pollution to the environment. Large areas of cultivated land, water resources, and air are seriously polluted. Ecological environment severely damaged
The transfer and stacking of stone powder can only bring about the improvement of environmental sanitation around the factory area, but cannot fundamentally solve the problem of stone powder pollution

Method used

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  • Green ecological cement with stone wastes as raw material and production method of green ecological cement
  • Green ecological cement with stone wastes as raw material and production method of green ecological cement
  • Green ecological cement with stone wastes as raw material and production method of green ecological cement

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Effect test

Embodiment 1

[0029]The stone waste is conveyed by the belt to the vertical dryer for drying. After drying, the stone waste is sent to the stone waste warehouse by the hoist for storage, with a water content of 1.9%. The dried stone waste is ground with a cement mill to make it The passing rate of 100 mesh sieve reaches more than 95%. Take 30 parts of the obtained dried stone waste and prepare 40 parts of 52.5 Portland cement clinker, 0.03 composite activator and 2 parts of early strength agent and add them to the cement mill. , spray atomized water to the inside of the cement mill, the temperature of the grinding process is 115±3°C, the material that comes out of the grinding head of the cement mill, that is, cement, is transported into the finished product homogenization bin by the elevator, and passed through the homogenization The air generated at the bottom of the silo is homogenized to obtain green ecological cement.

[0030] Among them, the composite activator is prepared by mixing s...

Embodiment 2

[0032] The stone waste is conveyed by the belt to the vertical dryer for drying. After drying, the stone waste is sent to the stone waste warehouse by the hoist for storage, with a water content of 1.8%. The dried stone waste is ground with a cement mill to make it The passing rate through the 100 mesh sieve reaches more than 95%. Add 40 parts of stone waste, 50 parts of 52.5 Portland cement clinker, 0.05 composite activator and 4 parts of early strength agent into the cement mill, and add to the cement. The inside of the mill sprays atomized water, and the temperature of the grinding process is 115±3°C. The material that comes out of the grinding head of the cement mill, that is, cement, is transported into the finished product homogenization bin by the elevator, and is produced by the bottom of the homogenization bin. After homogenizing the air, green ecological cement is obtained.

[0033] Among them, the composite activator is prepared by mixing sodium silicate, sodium sul...

Embodiment 3

[0035] The stone waste is conveyed by the belt to the vertical dryer for drying. After drying, the stone waste is sent to the stone waste warehouse by the hoist for storage, with a water content of 1.9%. The dried stone waste is ground with a cement mill to make it The passing rate through the 100 mesh sieve reaches more than 95%. Add 35 parts of stone waste and prepared 45 parts of 52.5 Portland cement clinker, 0.04 composite activator and 3 parts of early strength agent to the cement mill. The inside of the mill sprays atomized water, and the temperature of the grinding process is 115±3°C. The material that comes out of the grinding head of the cement mill, that is, cement, is transported into the finished product homogenization bin by the elevator, and is produced by the bottom of the homogenization bin. After homogenizing the air, green ecological cement is obtained.

[0036] Among them, the composite activator is prepared by mixing sodium silicate, sodium sulfate, and sod...

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Abstract

The invention discloses green ecological cement with stone wastes as raw materials and a production method of the green ecological cement. The green ecological cement comprises the following raw materials in parts by weight: 30-40 parts of stone wastes, 40-50 parts of Portland cement clinker, 0.03-0.05 part of a complex activator and 2-4 parts of an early strength agent. The cement clinker is Portland cement with the grade being more than 52.5, and the stone wastes are mixtures of marble powder and granite powder. The production method comprises the following steps of drying, burdening, grinding and homogenizing the raw material to obtain the green ecological cement. According to the method for producing the green ecological cement with the stone waste as the raw material, by adulterating the stone waste, the proportion of the clinker in the cement is reduced, the product cost is reduced, the performance of the cement is improved, and stone powder pollution caused by stone processing industry can be substantially reduced.

Description

technical field [0001] The invention relates to a cement production method, in particular to green ecological cement using stone waste as raw material and a production method thereof. Background technique [0002] Due to the severity of environmental pollution caused by stone waste, many experts at home and abroad have done comprehensive utilization research on the waste rock powder produced in the stone processing industry, mainly focusing on two aspects of marble and granite waste slurry: (1) processing of marble waste slurry Utilization, this application has higher requirements on the purity of marble components: ①marble powder is used to recycle battery lead instead of soda ash. Over the years, some professional factories have used soda ash as a co-solvent to recycle battery lead. Some enterprises have used marble powder in sawn marble waste slurry instead of soda ash. The advantage of doing like this is: reduce production cost and enter new production process with wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/36
CPCY02P40/10
Inventor 刘兴东伍远兰伍宇华
Owner XINCHENG COUNTY HONGYUN CEMENT
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