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A kind of cement and its production process

A production process and cement technology, which is applied in the field of cement and its production process, can solve the problems such as the decrease of cement grinding efficiency, and achieve the effects of improving grinding efficiency, reducing agglomeration, and improving the uniformity of raw material mixing

Active Publication Date: 2021-09-17
济南金禾建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, cement is made of clinker, mineral powder, etc., and the raw materials need to be ground when they are mixed. During the fine grinding process, the particles are gradually refined, and the specific surface area increases. Charged, the particles adsorb each other and agglomerate, resulting in a decrease in the grinding efficiency of cement

Method used

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  • A kind of cement and its production process
  • A kind of cement and its production process
  • A kind of cement and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] S1. Weigh 65kg of clinker, 5kg of fly ash, 8kg of petite with a particle size of 0.05mm, 0.3kg of modified alkali lignin and 24kg of mineral powder;

[0033] S2. Grinding the clinker fly ash, rock salt, and modified alkali lignin at a rate of 50 tons / h, and continuously adding mineral powder during the clinker grinding process;

[0034] S3. Pass the ground material through a 0.045mm sieve, and then stir evenly at a stirring rate of 35r / min to obtain a finished product.

Embodiment 2-5

[0036] The difference between Examples 2-5 and Example 1 is that the addition amount of each component is different, and the others are the same as Example 1, and the specific addition amounts are shown in Table 1.

[0037]

Embodiment 6

[0039] S1, take by weighing 65kg of clinker, 5kg of fly ash, 8kg of petite with a particle size of 0.05mm, 0.3kg of modified alkali lignin, weigh 1.5kg of polyethylene glycol, 24kg of mineral powder and mix uniformly;

[0040] S2. Grinding clinker, fly ash, petite, and modified alkali lignin at a rate of 50 tons / h, and continuously adding mineral powder and polyethylene glycol;

[0041] S3. Pass the ground material through a 0.045mm sieve, stir at a stirring rate of 35r / min, and stir evenly to obtain a finished product.

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Abstract

The invention discloses a cement and a production process thereof, and relates to the technical field of building materials. A cement is made from the following raw materials in parts by weight: 56-71 parts of clinker, 3-8 parts of fly ash, 5 -11 parts of petite, 0.2-0.4 parts of modified alkali lignin and 11-35 parts of ore powder, the modified alkali lignin is catalytically degraded and activated by a mixed system of phosphotungstic acid and hydrogen peroxide production. The addition of modified alkali lignin makes the modified lignin adsorb on the surface of the ground material, reducing the attraction between the material particles, so that the ground material is not easy to agglomerate, thereby improving the grinding efficiency of cement The purpose; The present invention also proposes a production process of cement, which has the advantage of improving the uniformity of raw material mixing.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, it relates to a cement and its production process. Background technique [0002] Cement, powdery hydraulic inorganic gelling material. After adding water and stirring, it becomes a slurry, which can be hardened in air or in water, and can firmly bind sand, stone and other materials together. [0003] In the prior art, cement is made of clinker, mineral powder, etc., and the raw materials need to be ground when they are mixed. During the fine grinding process, the particles are gradually refined, and the specific surface area increases. The surface of the cement particles is broken due to broken bonds. Charged, the particles adsorb each other and agglomerate, resulting in a decrease in the grinding efficiency of cement. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the first object of the present invention is to provide a kind of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26
CPCC04B7/26Y02P40/10
Inventor 马加学张景铎于化森
Owner 济南金禾建材有限公司