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Pretreatment method of molasses used for cement grinding aid

A technology of cement grinding aid and molasses, which is applied in the field of pretreatment of molasses for cement grinding aid, and can solve the problems of high viscosity, many impurities, and high cost

Inactive Publication Date: 2020-10-30
安徽海螺材料科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for the pretreatment of molasses for cement grinding aids, so as to solve the problems of high viscosity, many impurities and high cost when molasses is used in the production technology of cement grinding aids.

Method used

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  • Pretreatment method of molasses used for cement grinding aid
  • Pretreatment method of molasses used for cement grinding aid
  • Pretreatment method of molasses used for cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Pretreatment of molasses:

[0031] Include the following steps:

[0032] (1) The DNS method is used to detect the total sugar content of the molasses purchased from the sugar factory, and the calculated total sugar content is 50.09%.

[0033] (2) According to the requirements of viscosity and sugar content in the cement grinding aid formula, the calculated water:molasses=1:1.5 meets the production requirements.

[0034] (3) Add water and molasses into the crystal melting machine according to the ratio of 1:1.5 to stir and dilute to obtain diluted molasses; the stirring speed is 130 rpm, the time is 15 minutes, and the temperature is maintained at 5°C during the period.

[0035] (4) Keep the temperature at 5° C., and let the diluted molasses stand for 20 minutes.

[0036] (5) Keeping the temperature at 5° C., filtering the diluted molasses through a filter tank to obtain finished molasses.

Embodiment 2

[0038] Pretreatment of molasses:

[0039] Include the following steps:

[0040] (1) The DNS method is used to detect the total sugar content of the molasses purchased from the sugar factory, and the calculated total sugar content is 50.23%.

[0041] (2) According to the requirement of viscosity in the formula of cement grinding aid, it is calculated that water:molasses=50:1 meets the production requirements.

[0042] (3) Add water and molasses into the crystal melting machine according to the ratio of 50:1 to stir and dilute to obtain diluted molasses; the stirring speed is 150 rpm, the time is 5min, and the temperature is maintained at 40°C during the period.

[0043] (4) Keep the temperature at 40° C., and let the diluted molasses stand for 10 minutes.

[0044] (5) Keeping the temperature at 40° C., filtering the diluted molasses through a filter tank to obtain finished molasses.

Embodiment 3

[0046] Pretreatment of molasses:

[0047] Include the following steps:

[0048] (1) The DNS method is used to detect the total sugar content of the molasses purchased from the sugar factory, and the calculated total sugar content is 49.94%.

[0049] (2) According to the requirement of viscosity in the formula of cement grinding aid, it is calculated that water:molasses=25:1 meets the production requirements.

[0050] (3) Add water and molasses into the crystal melting machine at a ratio of 25:1 to stir and dilute to obtain diluted molasses; the stirring speed is 140 rpm, the time is 10 minutes, and the temperature is maintained at 20°C during this period.

[0051] (4) Keep the temperature at 20° C., and let the diluted molasses stand for 15 minutes.

[0052] (5) Keeping the temperature at 20° C., filtering the diluted molasses through a filter tank to obtain finished molasses.

[0053] 2. Detection example:

[0054] The initial molasses product and finished molasses used i...

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Abstract

The invention provides a pretreatment method of molasses used for a cement grinding aid. The pretreatment method solves the problem of high production cost caused by high molasses viscosity and many impurities in the prior art. The molasses pretreatment method comprises the following steps: S1, detecting the total sugar content of a primary molasses product; S2, calculating a ratio of water to theprimary molasses product during dilution according to the viscosity and sugar content of a desired cement grinding aid and the total sugar content obtained in the step S1; S3, diluting the primary molasses product according to the ratio obtained in S2 to obtain diluted molasses; and S4, subjecting the molasses diluted in the S3 to standing and filtering to obtain a finished molasses product. According to the molasses pretreatment method provided by the invention, the viscosity and impurities of the molasses can be reduced, so production cost is reduced.

Description

technical field [0001] The invention relates to a method for pretreatment of cement grinding aids with molasses. Background technique [0002] Molasses is a by-product of the sugar manufacturing process. It is dark brown and liquid, with poor fluidity and high viscosity. Its composition varies slightly due to different sugar raw materials and processing conditions. Molasses is a widely used raw material, which can be used in industries such as fermentation, breeding feed, food, medicine, building materials and plastics. In addition to being processed into various fermented products (alcohol, monosodium glutamate, citric acid, lysine, and yeast, etc.), sugarcane molasses is also used to produce antibiotics, riboflavin, and caramel pigment, etc. It is also often used as a feed additive or directly used in farming. In recent years, the building materials industry and the steelmaking industry have also developed and utilized molasses as an auxiliary raw material. Because molas...

Claims

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Application Information

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IPC IPC(8): C04B24/10C04B103/52
CPCC04B24/10C04B2103/52
Inventor 曹智勇杨志权余志全吴中飞
Owner 安徽海螺材料科技股份有限公司
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