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Method for producing G-level high oil-resistant well cement clinker and cement clinker produced by method

An oil well cement and high-resistance technology, applied in the field of cement clinker, can solve problems such as environmental safety hazards, secondary pollution, and affecting the actual effect of comprehensive environmental management, so as to reduce urban pollution, increase mill production, and reduce manual labor. The effect of intensity

Active Publication Date: 2013-05-22
新疆天山水泥有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the sewage treatment plants that have been built do not have supporting facilities for sludge treatment. The current water treatment is the process of concentrating the pollutants in the sewage and transferring them to the sludge. Since the sludge often contains germs and heavy metals, it has not been treated without sanitation. Disposal of a large number of harmful chemical treatment often causes secondary pollution, which seriously affects the real effect of comprehensive environmental management
[0004] At present, only about 10% of the sludge in my country's urban sewage treatment plants is recycled to the land after being treated with composting technology, about 20% is treated by landfill, a small amount is treated by incineration and building material utilization, and most of the rest is transported at will. Landfilling or stacking has brought great safety hazards to the local environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: Take 5 parts by weight of iron powder, 80 parts by weight of marble, 7 parts by weight of quartz stone, and 7 parts by weight of pottery clay, add water and grind to produce a slurry, the particle size of the slurry is controlled at ≦3 microns, accounting for 6.5%-10%, 3-30 micron accounts for 66%-62.5%, 30-100 micron accounts for 25%-20%, and >100 micron accounts for 8.5%-7.5%. Add 1 part by weight of urban sludge to the slurry, and control the particle size below 100 microns. The above-mentioned slurry added with municipal sludge is input into a rotary kiln for calcination. Rotary kiln control parameters: calcination temperature 1400°C, kiln system negative pressure at 200pa, kiln tail temperature at 175°C, kiln speed at 1.2 rpm, clinker vertical weight at 1450g / l. The clinker produced after calcination is cooled by a single cylinder cooler and then transported to the closed-circuit cement mill for grinding. The ground cement is sorted by a high-efficienc...

Embodiment 2

[0015] Example 2: Take 4 parts by weight of iron powder, 78 parts by weight of marble, 8 parts by weight of quartz stone, and 7 parts by weight of pottery clay, add water to grind the slurry, the particle size of the slurry is controlled below 100 microns, add 1-3 parts by weight of urban sludge, the particle size is controlled below 100 microns. The above-mentioned slurry added with municipal sludge is input into a rotary kiln for calcination. Rotary kiln control parameters: calcination temperature 1350°C, kiln system negative pressure at 250pa, kiln tail temperature at 185°C, kiln speed at 1.2 rpm, clinker vertical weight at 1450g / l. The clinker produced after calcination is cooled by a single cylinder cooler and then transported to a closed-circuit cement mill for grinding. After the ground cement is selected by a high-efficiency classifier, the fine powder is packed as a qualified product.

Embodiment 3

[0016] Example 3: Take 6 parts by weight of iron powder, 82 parts by weight of marble, 9 parts by weight of quartz stone, and 7 parts by weight of pottery clay, add water and grind to produce a slurry, the particle size of the slurry is controlled at ≦3 microns, accounting for 6.5%-10%, 3-30 micron accounts for 66%-62.5%, 30-100 micron accounts for 25%-20%, and >100 micron accounts for 8.5%-7.5%. Add 2 parts by weight of urban sludge to the slurry, and control the particle size to 30-60 microns. The above-mentioned slurry added with municipal sludge is input into a rotary kiln for calcination. Rotary kiln control parameters: calcination temperature 1450°C, kiln system negative pressure at 220pa, kiln tail temperature at 180°C, kiln speed at 1.5 rpm, clinker vertical weight at 1450g / l. The clinker produced after calcination is cooled by a single cylinder cooler and then transported to a closed-circuit cement mill for grinding, and then packed by a high-efficiency separator. ...

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Abstract

The invention discloses a method for producing a G-level high oil-resistant well cement clinker and a cement clinker produced by the method, and particularly relates to a method for producing the G-level high oil-resistant well cement clinker by urban sludge ingredients, and a cement clinker produced by the method. The aim of the invention is achieved by the following processes of adding municipal sludge after utilizing excellent marble, quartz stone, iron powder and clay ingredients with high calcium content, then burning in a kiln and producing the G-level high oil-resistant well cement clinker. Compared with the prior art, not only is the municipal sludge utilized, but also municipal pollution can be reduced to a certain extent; particularly, the yield of a grinding machine can be improved; the artificial labor intensity is reduced; and the production cost can be further reduced.

Description

technical field [0001] The present invention relates to a method for producing G-grade high-resistance oil well cement clinker and the cement clinker produced by the method, in particular to a method capable of producing G-grade high-resistance oil well cement clinker by using urban sludge ingredients and the method Cement clinker produced. Background technique [0002] At present, the production of G-grade high-resistance oil well cement clinker is mainly produced from marble, quartz, iron powder, and clay. [0003] With the acceleration of urbanization in our country, the urban population continues to increase, and urban sewage is also increasing. About 0.2-0.3% of sludge will be produced when 1 ton of sewage is treated. Most of the sewage treatment plants that have been built do not have supporting facilities for sludge treatment. The current water treatment is the process of concentrating the pollutants in the sewage and transferring them to the sludge. Since the sludg...

Claims

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Application Information

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IPC IPC(8): C04B7/24C09K8/46
CPCY02P40/145Y02P40/10
Inventor 辛建国刘颖靳冬民朱梧李源许文年王静邱红黄永贵
Owner 新疆天山水泥有限责任公司
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