CN103613312A - Low viscosity water reducer for coal water slurry - Google Patents

Abstract

The invention discloses a low viscosity water reducer for coal water slurry. The low viscosity water reducer is characterized by being prepared by mixing the following raw materials in parts by weight: 60-65 parts of a chloride-free water reducer, 2-3 parts of polyoxyethylene allyl ester, 0.5-1 part of a tackifier, 1-2 parts of isopropyl alcohol, 2-3 parts of epoxy acid magnesium, 0.6-1 part of sodium chromate, 1-2 parts of potassium thiosulfate, 1-2 parts of asbestos short fiber, 1-2 parts of calcium lignosulphonate, and 0.4-1 part of citric acid. The water reducer is especially suitable for coal water slurry and ensures that the surface of the pulverized coal particle is hydrophilic and carries negative charges, so that the pulverized coal and water can be mixed and dissolved, the coal water slurry has low viscosity and has good flowing property.

Description

A kind of coal water slurry low viscosity water reducer

Technical field

The present invention relates generally to a kind of water reducer, relates in particular to a kind of coal water slurry low viscosity water reducer.

Background technology

Water reducer refers under concrete workability and cement consumption permanence condition, can reduce mixing water amount, improve concrete strength; Or under workability and intensity permanence condition, save the admixture of cement consumption.The very large shortcoming of existence that water reducer used has now, such as raw-material bad adaptability, retarding effect is bad, and therefore poor water retention property etc. are produced high performance water reducer and are necessary.

Summary of the invention

The object of the invention is just to provide a kind of coal water slurry low viscosity water reducer.

The present invention is achieved by the following technical solutions:

A coal water slurry low viscosity water reducer, it is mixed and to be formed by the raw material of following weight parts:

Without chlorine water reducer 60-65, polyoxyethylene groups allyl ester 2-3, tackifier 0.5-1, Virahol 1-2, epoxyeicosatrienoic acid magnesium 2-3, Sodium chromate 0.6-1, Potassium Thiosulphate 1-2, asbestos short fibre 1-2, calcium lignin sulphonate 1-2, citric acid 0.4-1;

Described tackifier are to be made by the raw material of following weight parts:

Styrene-butadiene latex tackiness agent 20-30, nano-sized carbon 2-3, jade powder 1-2, wilkinite 2-3, rosin 3-5, Oil of Eucalyptus 1-2, tetramethylolmethane 2-3;

Above-mentioned tetramethylolmethane is heated to 160-165 ℃, add jade powder, wilkinite, 400-600 rev/min of dispersed with stirring 10-14 minute, adds nano-sized carbon, ball milling 3-5 minute, to after rosin heating fusing, add, fully mix, finally add styrene-butadiene latex tackiness agent, fully ball milling, cooling, obtain described tackifier.

Advantage of the present invention is:

Water reducer of the present invention is specially adapted to coal water slurry and uses, and can make pulverized coal particle surface hydrophilic, electronegative, thus make coal dust and water miscible, make viscosity in aqueous coal slurries low, there is good flowing property.

Embodiment

Embodiment 1

A coal water slurry low viscosity water reducer, it by following weight parts (kilogram) raw material mix and to form:

The efficient high energy of SH-II is without chlorine water reducer 65, polyoxyethylene groups allyl ester 3, tackifier 0.5, Virahol 2, epoxyeicosatrienoic acid magnesium 3, Sodium chromate 0.6, Potassium Thiosulphate 2, asbestos short fibre 1, calcium lignin sulphonate 1, citric acid 0.4;

Described tackifier are to be made by the raw material of following weight parts:

Styrene-butadiene latex tackiness agent 30, nano-sized carbon 2, jade powder 1, wilkinite 3, rosin 5, Oil of Eucalyptus 2, tetramethylolmethane 3;

Above-mentioned tetramethylolmethane is heated to 165 ℃, adds jade powder, wilkinite, 600 revs/min of dispersed with stirring 14 minutes, add nano-sized carbon, ball milling 5 minutes, by adding after rosin heating fusing, fully mixes, and finally adds styrene-butadiene latex tackiness agent, fully ball milling, cooling, obtains described tackifier.

Performance test:

Water-reducing rate: 29.5%;

Bleeding rate: 42%;

Air content: 2.6%;

Time of coagulation is poor :+584min.

Volume of the present invention is the 1-2% of cement consumption, and in identical water cement ratio situation, more than can making concrete slump raising 15cm, mobility increases considerably.

Claims (1)

1. a coal water slurry low viscosity water reducer, is characterized in that it is mixed and formed by the raw material of following weight parts:

Without chlorine water reducer 60-65, polyoxyethylene groups allyl ester 2-3, tackifier 0.5-1, Virahol 1-2, epoxyeicosatrienoic acid magnesium 2-3, Sodium chromate 0.6-1, Potassium Thiosulphate 1-2, asbestos short fibre 1-2, calcium lignin sulphonate 1-2, citric acid 0.4-1;

Described tackifier are to be made by the raw material of following weight parts:

Styrene-butadiene latex tackiness agent 20-30, nano-sized carbon 2-3, jade powder 1-2, wilkinite 2-3, rosin 3-5, Oil of Eucalyptus 1-2, tetramethylolmethane 2-3;

Above-mentioned tetramethylolmethane is heated to 160-165 ℃, add jade powder, wilkinite, 400-600 rev/min of dispersed with stirring 10-14 minute, adds nano-sized carbon, ball milling 3-5 minute, to after rosin heating fusing, add, fully mix, finally add styrene-butadiene latex tackiness agent, fully ball milling, cooling, obtain described tackifier.