Destatic milling-assisting and yield-increasing technique for cement mill

A technology of cement grinding and static electricity, applied in the field of cement production, can solve the problems of clinker becoming wet, affecting cement production, affecting cement processing, etc., achieving the effect of improving grinding capacity, reducing the amount of recycled materials, and preventing static electricity

Inactive Publication Date: 2008-05-07
汪晓明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of cement processing from clinker to finished product, the clinker must always be in a dry state, so as to prevent the grinding balls in the ball mill tank from wrapping balls, which is helpful for grinding, and can effectively ensure that the fine powder after grinding is separated. to the finished product area; in addition, when the clinker is in a wet state, the table time is extremely low, which seriously affects the cement processing; therefore, in the current traditional technology, technical personnel in the field have entered a misunderstanding. Water cannot be injected during the finished product process, otherwise the clinker will become wet, seriously affecting cement production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Production of clinker: According to the conventional cement production method, limestone, clay, anthracite, fluorite and pyrite powder are mixed with black raw material through the raw material computer batching system, and the raw material mill is used for grinding. Sampling and testing the percentage of calcium oxide and fineness of the raw meal once an hour, and adjust it in time; put the ground raw meal into the calcination kiln for calcination to obtain clinker, and the moisture content of the clinker is controlled at 0-2.0;

[0018] Crushing: Crushing the above-mentioned clinker in the crusher;

[0019] Drying: the mixed material is dried in the drying machine, the moisture of the mixed material is controlled at 0-2.0, and each material of the mixed material is in parts by weight, slag: gypsum: fly ash=16:6:28 .

[0020] Grinding: Put the above crushed clinker and the dried mixed material into the cement mill, inject water into the cement grinding head for grindi...

Embodiment 2

[0023] In the described grinding step, 60 tons of Portland cement clinker and admixture produced by conventional techniques are put into the cement mill, and 48Kg of water is injected into the grinding head simultaneously, and other steps are the same as in Example 1.

Embodiment 3

[0025] In the described grinding step, 60 tons of ordinary Portland cement clinker and admixture produced by conventional techniques are put into the cement mill, and 30Kg of water is injected into the grinding head at the same time, and other steps are the same as in Example 1.

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PUM

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Abstract

The invention relates to a cement grinding mill static grinding increasing technique, which comprises the steps of drying, breaking, grinding and powder choosing. In the step of grinding, clinker and the mixing material are fed in a cement grinding mill, then water is infused in the wheel head of the cement grinding mill. The delivering proportion accords to the weight that the clinker: the mixing material: the water is 5000 to 8000:2000:5 to 8. The invention overcomes the technical bias of the prior art, greatly improves the output, and brings considerable economical benefit.

Description

technical field [0001] The invention relates to a process for producing cement, in particular to a process for increasing cement production by removing static electricity and aiding grinding. Background technique [0002] Cement is an important building material. The mortar or concrete made of cement is strong and durable, and is widely used in civil engineering, water conservancy, national defense and other projects. With the development of science and technology, the cement industry has adopted a variety of methods in order to increase production and reduce costs. Although some results have been achieved, the effect is not significant. The production process of cement uses limestone and clay as the main raw materials. After crushing, batching, and grinding to make raw meal, the clinker is fed into the cement kiln to calcinate the clinker, and then the clinker is added with an appropriate amount of gypsum and other additives to grind it into a finished product. In the proc...

Claims

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Application Information

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IPC IPC(8): C04B7/52
Inventor 汪晓明
Owner 汪晓明
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