High grinding temperature compound liquid grinding aid and preparation method thereof

A compound type and grinding aid technology is applied in the field of high grinding temperature compound type liquid grinding aid and its preparation. The effect of liquidity

Active Publication Date: 2014-06-04
NANJING YONGNENG MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose: In order to solve the deficiencies of the existing technology and solve the problem that ordinary liquid grinding aids lose their original effectiveness in cement mills higher than 120 ° C, the invention provides a high grinding temperature composite liquid grinding aid and its preparation method

Method used

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  • High grinding temperature compound liquid grinding aid and preparation method thereof
  • High grinding temperature compound liquid grinding aid and preparation method thereof
  • High grinding temperature compound liquid grinding aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] Example 1: A high grinding temperature composite liquid grinding aid, the composition is as follows:

[0011] 30-50% aqueous solution of 12% polyvinyl alcohol

[0012] Sodium tripolyphosphate 1-5%

[0013] Sodium gluconate 0.01-5%

[0014] Ethylene glycol 5-15%

[0015] Sodium dodecylbenzenesulfonate 0.01-0.05%

[0016] 40% sugarcane sugar residue liquid 10-15%

[0017] The preparation method of the high grinding temperature composite liquid grinding aid, the steps are: inject water at about 20°C into the reaction kettle, slowly add polyvinyl alcohol into it while stirring, fully swell and disperse; then raise the temperature of the water Accelerate to about 95°C until completely dissolved to obtain a 12% aqueous solution of polyvinyl alcohol, add sodium tripolyphosphate and sodium gluconate and stir for 15 minutes, then add ethylene glycol, sodium dodecylbenzenesulfonate, 40% The sugarcane dregs liquid was stirred for 10 minutes, and then filtered through 150-mesh...

Embodiment 2 to Embodiment 6

[0019] Repeat the method of Experimental Example 1 according to the content of each component specified in the following table 1, and obtain the high grinding temperature composite liquid grinding aid product of different component content respectively:

[0020] Table 1

[0021]

[0022]

[0023] The high-grinding temperature composite liquid grinding aid products obtained in Examples 1 to 6 were subjected to high-grinding under the condition that the admixture amount was 0.03% of the cement mass, and the average temperature of the cement mill was 140°C. The comparison experiment of warm compound liquid grinding aid and common grinding aid, the experimental results are shown in Table 2:

[0024] Table 2

[0025]

[0026] It can be seen that the high grinding temperature composite liquid grinding aid provided and prepared by the present invention will not cause ball sticking compared with ordinary grinding aids at a high temperature of 140°C, and improves the grinding...

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Abstract

The invention discloses a high grinding temperature compound liquid grinding aid consisting of the following components by mass percent: 30-50% of 12% polyvinyl alcohol aqueous solution, 1-5% of sodium tripolyphosphate, 0.01-5% of sodium gluconate, 5-15% of ethylene glycol, 0.01-0.05%, 40% of sodium dodecyl benzene sulfonate, 10%-15% of 40% cane sugar residue fluid and the balance of water. The high grinding temperature compound liquid grinding aid solves the problem that normal liquid grinding aids lose original utility of the grinding aid in a cement mill with the temperature higher than 120 degrees centigrade so as to significantly improve the liquidity of cements, increase the grinding efficiency of the mill, significantly increase the machine-hour yield of the mill, improve the adaptability of cement grinding aid and concrete water reducer and significantly improve the early strength of the cements and suitably increase the long-term strength of the cements.

Description

technical field [0001] The invention relates to a high grinding temperature composite liquid grinding aid and a preparation method thereof. Background technique [0002] In the grinding process of cement clinker, adding a small amount of additional substances (liquid or solid substances) can significantly improve the grinding efficiency and reduce energy consumption without affecting the original performance of cement. For: cement grinding aid. Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the electrostatic adsorption formed during the grinding process, greatly reduce the phenomenon of ball encapsulation, and can reduce the re-agglomeration tendency of ultrafine particles formed during the grinding process. Cement grinding aids can also significantly improve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38
Inventor 刘国华唐慧慧
Owner NANJING YONGNENG MATERIALS
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