A cement grinding aid using industrial waste residue as raw material and its preparation method

A technology for cement grinding aid and industrial waste residue, applied in the field of cement, can solve the problems of less than half of the comprehensive utilization rate, restricting the application of industrial waste residue, prolonging the setting time of cement, etc., and achieves good application prospects, excellent grinding aid effect, and dispersion effect. good effect

Active Publication Date: 2017-02-01
山东天汇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country discharges a large amount of solid industrial waste (industrial waste) such as fly ash, slag, phosphorus slag, steel slag every year, but its comprehensive utilization rate is less than half
However, due to the large amount of industrial waste slag mixed in, it will affect the strength of cement, and the cement setting time will be prolonged after a large amount of industrial waste slag is mixed in. Due to the influence of these two aspects, the application of industrial waste slag in cement is restricted.

Method used

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  • A cement grinding aid using industrial waste residue as raw material and its preparation method
  • A cement grinding aid using industrial waste residue as raw material and its preparation method
  • A cement grinding aid using industrial waste residue as raw material and its preparation method

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Effect test

Embodiment 1

[0021] A cement grinding aid using industrial waste residue as raw material, which is made of the following components in mass percentage:

[0022]

[0023]

[0024] Wherein, the preparation method is: (1) grinding 60 parts of phosphogypsum, 10 parts of fluorogypsum and 5 parts of waste rock into fine powder, (2) grinding 3 parts of polyvinylpyrrolidone, 10 parts of sodium sulfate decahydrate and Add 5 parts of sodium silicate into the aqueous solution of 90% ethanol, and dissolve completely, (3) add fine powdered phosphogypsum, fluorine gypsum and waste rock chips into the dispersant solution, and stir well, (4) put The mixed solution was dried at 150°C, and ground into a mixed fine powder of 200 microns, (5) the mixed fine powder was added to a dry powder mixer, 5 parts of calcium hydroxide and 2 parts of diethanol monoisopropanolamine were added, Forms a finely powdered cement grinding aid.

[0025] The fineness of the invention (200 micron standard filter sieve filt...

Embodiment 2

[0027] A cement grinding aid using industrial waste residue as raw material, which is made of the following components in mass percentage:

[0028]

[0029] Among them, the preparation method is: (1) grinding 40 parts of phosphogypsum, 30 parts of fluorogypsum and 5 parts of waste rock chips into fine powder, (2) grinding 3 parts of sodium polyepoxysuccinate, 10 parts of decahydrate Add sodium sulfate and 5 parts of sodium silicate into the aqueous solution and dissolve them completely. (3) Add the fine powdered phosphogypsum, fluorogypsum and waste rock chips into the dispersant solution and stir them well. (4) Mix the Dry the liquid at 100°C and grind it into a mixed fine powder of 160 microns. (5) Add the mixed fine powder to a dry powder mixer, add 5 parts of calcium hydroxide and 2 parts of diethanol monoisopropanolamine to form Fine powder cement grinding aid.

[0030] The fineness of this invention (200 micron standard filter sieve filtration) has reduced 8%, and sp...

Embodiment 3

[0032] A cement grinding aid using industrial waste residue as raw material, which is made of the following components in mass percentage:

[0033]

[0034]

[0035] Wherein, the preparation method is as follows: (1) grinding 40 parts of phosphogypsum, 18 parts of fluorogypsum and 8 parts of waste rock into fine powder, (2) grinding 3 parts of sodium polyaspartate, 15 parts of decahydrate Sodium sulfate and 8 parts of sodium silicate are added in the aqueous solution of 45% ethanol, and dissolve completely, (3) finely powdered phosphogypsum, fluorogypsum and waste rock chips are added to the dispersant solution, and fully stirred evenly, ( 4) Dry the mixed solution at 130°C and grind it into a mixed fine powder of 160 microns, (5) Add the mixed fine powder to a dry powder mixer, add 5 parts of calcium hydroxide and 3 parts of diethanol monoisopropyl Alcohol amines form fine powder cement grinding aids.

[0036] The fineness of this invention (200 micron standard filter ...

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Abstract

The invention discloses a cement grinding aid taking industrial residue as a raw material and a preparation method of the cement grinding aid. The cement grinding aid is prepared from 40-60 parts of phosphogypsum, 10-30 parts of zeolite gypsum, 10-15 parts of sodium sulphate, 5-8 parts of waste stone chips, 5-8 parts of sodium silicate, 3-5 parts of slaked lime, 1-3 parts of diethanolisopropanolamine and 1-3 parts of a dispersing agent. The raw materials are wide in source, the pollution to environment is reduced, no waste acid, waste water and waste residue are discharged, and the purpose of saving energy and reducing discharge is achieved. The cement grinding aid disclosed by the invention has good application prospect, good performance and low cost and is beneficial to improving the yield and early strength of cement greatly.

Description

technical field [0001] The invention belongs to the field of cement, and in particular relates to a cement grinding aid and a preparation method thereof. Background technique [0002] Cement is an indispensable building material in human life and social production. It is widely used and used in large quantities. It is known as "the grain of the construction industry". At present, there is no material at home and abroad that can replace it. Statistics show that the world's construction industry consumes 40% of the total resources and energy consumption. Due to the impact of waste gas, dust, waste water and noise, the cement industry is still a major contributor to environmental pollution. At the same time, with the increasing scale of industrial production, the industrial by-products are continuously produced and accumulated, and there are problems such as storage and processing and damage to the ecological environment. A large amount of solid industrial waste (industrial w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/12C04B22/14C04B103/52
Inventor 王峰尹方勇周俊华
Owner 山东天汇科技有限公司
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