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A preparation method for preventing deflagration in cement production based on on-line monitoring

A technology for cement and raw meal, applied in the field of explosion-proof preparation of cement production based on on-line monitoring, can solve the problems of easy explosion or combustion, loss of cement production, threats to workers' personal safety, etc., so as to promote grinding effect and improve cement strength , Optimize the effect of cement particle grading

Active Publication Date: 2021-08-13
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most common type of cement production is fly ash Portland cement, which is widely active in the front line of cement production due to its advantages of low cost, simple source and convenient preparation. However, in the process of cement production, coal powder has potential Risk factors, the factors that coal dust explosion must have at the same time are: more than 18% oxygen content, high temperature heat source, coal dust concentration of 40g / m3 to 2000g / m3, and the coal dust concentration is easy to diffuse in the environment during grinding. , once the dust concentration reaches the limit value, it is easy to explode or burn, which not only causes huge losses to cement production, but also poses a great threat to the personal safety of workers. Therefore, it is very necessary to monitor the deflagration prevention in cement production and worthy of attention

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  • A preparation method for preventing deflagration in cement production based on on-line monitoring
  • A preparation method for preventing deflagration in cement production based on on-line monitoring
  • A preparation method for preventing deflagration in cement production based on on-line monitoring

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Embodiment 1

[0041] see Figure 1-2 , an anti-deflagration preparation method for cement production based on online monitoring, the cement includes the following raw materials in parts by weight: 50 parts of limestone, 40 parts of fly ash, 5 parts of raw gypsum powder, 30 parts of fine sand, 2 parts of polypropylene fiber, 0.5 part of water reducer, 0.2 part of additive, 10 parts of dispersant, 15 parts of multi-gap double control ball and 100 parts of water, its preparation method comprises the following steps:

[0042] S1. Pre-dry the limestone, fly ash and gypsum at room temperature after spreading, and dry under the protection of carbon dioxide until the moisture content is lower than 2%;

[0043] S2. After drying, put the raw materials in step S1 into a ball mill for grinding, and prepare the raw meal according to the weight ratio, and add multi-gap double control balls at the same time;

[0044] S3. Put the raw meal into a high-temperature furnace for heat treatment, raise the tempe...

Embodiment 2

[0060] see Figure 1-2 , an anti-deflagration preparation method for cement production based on online monitoring, the cement includes the following raw materials in parts by weight: 55 parts of limestone, 50 parts of fly ash, 8 parts of raw gypsum powder, 40 parts of fine sand, 3 parts of polypropylene fiber, 1 part of water reducing agent, 0.4 part of additive, 12 parts of dispersant, 20 parts of multi-gap double control ball and 120 parts of water, its preparation method comprises the following steps:

[0061] S1. Pre-dry the limestone, fly ash and gypsum at room temperature after spreading, and dry under the protection of carbon dioxide until the moisture content is lower than 2%;

[0062] S2. After drying, put the raw materials in step S1 into a ball mill for grinding, and prepare the raw meal according to the weight ratio, and add multi-gap double control balls at the same time;

[0063] S3. Put the raw meal into a high-temperature furnace for heat treatment, raise the ...

Embodiment 3

[0069] see Figure 1-2 , an anti-deflagration preparation method for cement production based on online monitoring, the cement includes the following raw materials in parts by weight: 60 parts of limestone, 60 parts of fly ash, 10 parts of raw gypsum powder, 45 parts of fine sand, 5 parts of polypropylene fiber, 2 parts of water reducing agent, 0.5 part of additive, 15 parts of dispersant, 30 parts of multi-gap double control ball and 150 parts of water, its preparation method comprises the following steps:

[0070] S1. Pre-dry the limestone, fly ash and gypsum at room temperature after spreading, and dry under the protection of carbon dioxide until the moisture content is lower than 2%;

[0071]S2. After drying, put the raw materials in step S1 into a ball mill for grinding, and prepare the raw meal according to the weight ratio, and add multi-gap double control balls at the same time;

[0072] S3. Put the raw meal into a high-temperature furnace for heat treatment, raise the...

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Abstract

The invention discloses an anti-deflagration preparation method for cement production based on on-line monitoring, which belongs to the technical field of cement production, and can realize the introduction of a new type of multi-gap double control ball in the dangerous fly ash grinding stage, using the multi-layer self-stripping characteristics and The physical and chemical properties of self-modified bentonite raw materials can be directly contacted with fly ash during the grinding process, and the coal ash dust can be adsorbed through excellent adsorption, and the kinetic energy of the multi-gap double control ball during the grinding process can be carried out. Transformation, the internal liquid grinding aid is released to the grinding surface to promote the grinding effect, and with the gradual consumption and peeling of the multi-gap double control ball shell, the graded grinding of the material can be realized, which is conducive to optimizing the cement particle gradation At the same time, the peeled bentonite shell is mixed with adsorbed coal dust and is fully mixed with the material after grinding to improve the dispersion of the material. Based on the online monitoring of the sensor group, the two-pronged monitoring and prevention of cement production is realized. Explosion-proof preparation .

Description

technical field [0001] The invention relates to the technical field of cement production, and more specifically, relates to an on-line monitoring-based anti-explosion preparation method for cement production. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It can be mixed with water to form a slurry. It can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. Early lime and The mixture of volcanic ash is very similar to the modern lime pozzolanic cement. It is used to bond the concrete made of crushed stone. After hardening, it not only has high strength, but also can resist the erosion of fresh water or salt water. It has been used as an important glue for a long time. Concrete material, widely used in civil construction, water conservancy, national defense and other projects. General-purpose cement mainly refers to: the six types of cement specified in GB175-2007, namely P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26C04B7/42C04B24/02C04B24/12B02C17/10B02C17/20
CPCB02C17/10B02C17/20C04B7/26C04B7/421C04B7/424C04B7/428C04B24/023C04B24/026C04B24/122Y02P40/10
Inventor 魏远方程发魏铭辰
Owner CHANGCHUN UNIV OF TECH