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Preparation method and preparation equipment of QS-2 retarding superplasticizer

A high-efficiency water-reducing agent, QS-2 technology, applied in the field of water-reducing agent production, can solve the problems affecting the performance of water-reducing agent, uneven mixing, etc., to achieve increased water-reducing rate, increased retardation time, and strong sealing Effect

Inactive Publication Date: 2019-05-24
HUAIBEI XURI BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In actual production, general mixing and mixing equipment is prone to uneven mixing, which will seriously affect the performance of the water reducer. At the same time, due to the high speed of stirring, the equipment itself needs to have good sealing.

Method used

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  • Preparation method and preparation equipment of QS-2 retarding superplasticizer
  • Preparation method and preparation equipment of QS-2 retarding superplasticizer
  • Preparation method and preparation equipment of QS-2 retarding superplasticizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of preparation method of QS-2 retarding high-efficiency water reducing agent, the preparation method of described water reducing agent comprises the following steps:

[0051] 1. Selection of raw materials

[0052] Choose 88 kilograms of aliphatic mother liquors, 0.5 kilograms of sodium gluconate, 0.5 kilograms of maltodextrin, 0.2 kilograms of rosin, and 7.4 kilograms of water, wherein 88 kilograms of aliphatic mother liquors are equally divided into two parts, A and B, for subsequent use;

[0053] 2. Stirring for the first time

[0054]Add the water in step 1 into the preparation equipment, turn on the preparation equipment, add part A of aliphatic mother liquor into the preparation equipment at a constant speed, the addition speed is 800ml / min, stir at a constant speed for 1-2 hours, and the rotation speed is 20-30r / min, until The aliphatic mother liquor and water are completely mixed to obtain a mixed liquor;

[0055] Third, the second stirring

[0056] Add...

Embodiment 2

[0060] A kind of preparation method of QS-2 retarding high-efficiency water reducing agent, the preparation method of described water reducing agent comprises the following steps:

[0061] 1. Selection of raw materials

[0062] Choose 90 kilograms of aliphatic mother liquor, 1 kilogram of sodium gluconate, 1 kilogram of maltodextrin, 0.3 kilogram of rosin, 7.7 kilograms of water, wherein 90 kilograms of aliphatic mother liquor are equally divided into two parts, A and B, for subsequent use;

[0063] 2. Stirring for the first time

[0064] Add the water in step 1 into the preparation equipment, turn on the preparation equipment, add part A of aliphatic mother liquor into the preparation equipment at a constant speed, the addition speed is 800ml / min, stir at a constant speed for 1-2 hours, and the rotation speed is 20-30r / min, until The aliphatic mother liquor and water are completely mixed to obtain a mixed liquor;

[0065] Third, the second stirring

[0066] Add sodium gluc...

Embodiment 3

[0070] A kind of preparation method of QS-2 retarding high-efficiency water reducing agent, the preparation method of described water reducing agent comprises the following steps:

[0071] 1. Selection of raw materials

[0072] Choose 92 kilograms of aliphatic mother liquors, 1.5 kilograms of sodium gluconate, 1.5 kilograms of maltodextrins, 0.7 kilograms of rosin, and 8.0 kilograms of water, wherein 92 kilograms of aliphatic mother liquors are equally divided into two parts, A and B, for subsequent use;

[0073] 2. Stirring for the first time

[0074] Add the water in step 1 into the preparation equipment, turn on the preparation equipment, add part A of aliphatic mother liquor into the preparation equipment at a constant speed, the addition speed is 800ml / min, stir at a constant speed for 1-2 hours, and the rotation speed is 20-30r / min, until The aliphatic mother liquor and water are completely mixed to obtain a mixed liquor;

[0075] Third, the second stirring

[0076] A...

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Abstract

The invention discloses a preparation method and preparation equipment of a QS-2 retarding superplasticizer. The preparation method includes the steps of selection of raw materials, primary stirring,secondary stirring and mixing and forming. The preparation equipment comprises an equipment body; a first fixing plate is arranged on the top of the equipment body, a feeding mechanism is arranged atthe side end of the first fixing plate, and a driving device is arranged on the first fixing plate. Besides, a discharge pipe is communicated to the center of the bottom end of the equipment body, a stirring mechanism is arranged in the equipment body and comprises a stirring shaft of which the upper end is fixedly welded to a driving shaft. Multiple embodiment and comparison cases are designed todraw a conclusion that the water reducing rate is increased and the retarding time is prolonged as increase of the mixing amount of the superplasticizer; meanwhile, the raw materials can be mixed spirally through a screw propeller, and can be mixed circumferentially through a longitudinal stirring rod, and thus better mixing effect is achieved; further, rotation speed can be controlled through agear motor, and accordingly, the equipment is adaptable to mixing of different raw materials.

Description

technical field [0001] The invention relates to the production field of water reducers, in particular to a production method and equipment for QS-2 retarded high-efficiency water reducers. Background technique [0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete basically unchanged. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mixture, and finally reduce the unit cement consumption and delay the setting time. [0003] In the existing technology, the production of water reducing agent can achieve the purpose of reducing water and setting retardation to a certain extent, but it has not been possible to obtain an accurate correlation between the ratio of raw materials, water reducing rate, retarding time, etc. , It is impossible to change the ratio of raw materials accor...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/30
Inventor 蒋家喜蒋文徐绍玉
Owner HUAIBEI XURI BUILDING MATERIALS
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