Dust suppressant for constructional engineering and preparation method thereof

A technology of construction engineering and dust suppressant, which is applied in the field of atmospheric dust pollution control, can solve the problems of high cost of dust suppressant, low water retention capacity, and large corrosion of construction equipment, and achieve the goals of shortening curing time, saving cost, and reducing spraying volume Effect

Active Publication Date: 2013-09-18
BEIJING JINKE COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dust suppression effect of pure water is short, the water retention capacity is low, and it may affect the accuracy of the concrete construction mix rati

Method used

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  • Dust suppressant for constructional engineering and preparation method thereof
  • Dust suppressant for constructional engineering and preparation method thereof
  • Dust suppressant for constructional engineering and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Preparation of construction dust suppressant composition of the present invention

[0026] 1) At normal temperature, 100 parts by weight of hydroxymethylcellulose, 1 part by weight of hydroxypropylmethylcellulose, and 2 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;

[0027] 2) Heat 2 parts by weight of water to 40°C, then add 0.1 parts by weight of polyacrylamide, 0.05 parts by weight of rare earth and 0.01 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;

[0028] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;

[0029] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), the...

Embodiment 2

[0030] Embodiment 2: Preparation of construction dust suppressant composition of the present invention

[0031] 1) At room temperature, 100 parts by weight of hydroxymethylcellulose, 3 parts by weight of hydroxypropylmethylcellulose, and 2 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;

[0032] 2) Heat 4 parts by weight of water to 50°C, then add 0.3 parts by weight of polyacrylamide, 0.07 parts by weight of rare earth and 0.02 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;

[0033] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;

[0034] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), then...

Embodiment 3

[0035] Embodiment 3: Preparation of construction dust suppressant composition of the present invention

[0036] 1) At normal temperature, 100 parts by weight of hydroxymethylcellulose, 3 parts by weight of hydroxypropylmethylcellulose, and 3 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;

[0037] 2) Heat 5 parts by weight of water to 60°C, then add 0.5 parts by weight of polyacrylamide, 0.1 parts by weight of rare earth and 0.04 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;

[0038] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;

[0039] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), the...

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Abstract

The invention relates to a dust suppressant for constructional engineering and a preparation method thereof. The dust suppressant for constructional engineering consists of carboxymethyl cellulose, hydroxypropyl methyl cellulose, polyvinyl alcohol, polyacrylamide, rare earth, benzene sulfonic acid sodium salt, a food coloring agent and water. The dust suppressant for constructional engineering is mainly applied to construction site construction, building removing, municipal administration path construction and the like. The dust suppressant does not contain heavy metals and toxic and side effects, is low in cost and convenient to spray; the dust suppressant can improve soil quality, and regulate soil viscosity and water content; the dust suppressant is easily and biochemically degraded, does not harm the soil and vegetation and cannot cause secondary pollution.

Description

【Technical field】 [0001] The invention belongs to the field of atmospheric dust pollution control, and in particular relates to a dust suppressant for construction engineering and a preparation method thereof. 【Background technique】 [0002] Construction dust is unorganized dust generated in the process of building construction or municipal and road construction. Construction activities can seriously affect the local air quality in a short period of time. Wind erosion and dust are closely related. This dust accounts for more than 20% of the total urban dust, and contributes about 10% to the atmospheric PM10 concentration. Strict control of construction dust pollution is one of the important means to improve air quality. At present, domestic dust prevention measures include: steel plate, dust-proof net (cloth), greening, chemical dust suppression and other measures. [0003] However, as far as the present situation of dust pollution is concerned, the research on some dust ...

Claims

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Application Information

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IPC IPC(8): C09K3/22
Inventor 王新民白巧霞李杰曹洪生
Owner BEIJING JINKE COMPOSITE MATERIAL
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