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Method for preventing cement from caking

A technology for cement and cement powder is applied in the field of preventing cement storage, which can solve problems such as reducing the frequency of storage cleaning in cement enterprises, and achieve the effects of reducing the risk of manual storage cleaning, reducing storage cleaning costs, and preventing cement agglomeration.

Pending Publication Date: 2021-07-16
华润水泥技术研发(广西)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is: aiming at the problems mentioned in the background technology, the purpose of the present invention is to provide a method for preventing cement from accumulating. Agglomeration problem in cement silo, reduce the frequency of cement enterprise cleaning, thereby reducing the risk of manual cleaning

Method used

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  • Method for preventing cement from caking
  • Method for preventing cement from caking

Examples

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Embodiment 1

[0021] A method for preventing cement from accumulating. During the cement grinding process, a surfactant with a hydrophilic group and a hydrophobic group is mixed into the cement at the grinding head of a ball mill, and the mixing amount is 0.005% of the cement mass.

[0022] Wherein the surfactant is cetyl trimethyl quaternary ammonium sodium bromide.

Embodiment 2

[0024] A method for preventing cement from accumulating. In the cement grinding process, a surfactant with a hydrophilic group and a hydrophobic group is mixed into the cement at the grinding head of a ball mill, and the mixing amount is 0.008% of the cement mass.

[0025] Wherein the surfactant is octadecyl dimethyl benzyl quaternary ammonium sodium chloride.

Embodiment 3

[0027] A method for preventing cement from accumulating. During the cement grinding process, a surfactant with a hydrophilic group and a hydrophobic group is mixed into the cement at the grinding head of a ball mill, and the mixing amount is 0.01% of the cement mass. Wherein the surfactant is tetradecyltrimethylammonium bromide.

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Abstract

The invention discloses a method for preventing cement from caking. In the cement grinding process, a surface active agent with a hydrophilic group and a hydrophobic group is doped into cement in a grinding head of a ball mill, and the doping amount is 0.005-0.01% of the mass of the cement. By adding the surfactant, the cement is prevented from being hydrated too early in the storage process, the problem of caking in a cement silo is fundamentally solved, the silo cleaning frequency of a cement enterprise is reduced, and thus the risk of manual silo cleaning is reduced.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a method for preventing cement from accumulating. Background technique [0002] Cement is prone to pre-hydration during storage, which will cause cement agglomeration in the cement silo, affect the quality of the cement, and also bring safety hazards in the subsequent manual cleaning process. Cement storage has been a problem that has plagued cement bases for a long time. It takes a lot of manpower and material resources to clean the storage every year. More importantly, casualties often occur due to the cleaning of the cement storage. According to incomplete statistics, dozens of casualties are caused by warehouse clearance operations in the cement industry every year. Large-scale cement enterprises have strictly prohibited manual warehouse clearing and adopted mechanical warehouse clearing, but the follow-up work of mechanical warehouse clearing is still inseparable ...

Claims

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Application Information

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IPC IPC(8): C04B7/52
CPCC04B7/52
Inventor 周靖陶从喜滕灼光岳琴何坤富
Owner 华润水泥技术研发(广西)有限公司
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