Urban construction dust control method

A control method and urban technology, applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problems of sprinkling and dust reduction indicators that do not cure the root cause, are not conducive to construction on construction sites, etc., and achieve reduced dust rate, good mechanical properties, and good control of dust Effect

Inactive Publication Date: 2019-06-28
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the construction site mainly adopts the method of sprinkling water to control the dust, but the dust reduction index of sprinkling does not cure the root cause
At the same time, it is not conducive to the construction of the construction site

Method used

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  • Urban construction dust control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for controlling urban construction dust, comprising the following steps:

[0026] (1) 40 parts by weight of polyvinyl alcohol resin, 1 part by weight of tributyl citrate, 20 parts by weight of calcium carbonate, 20 parts by weight of starch, 0.5 parts by weight of aluminate and 400 parts by weight of water are mixed Finally, the film-forming liquid is formed under the condition of 70°C, and then the film-forming liquid is cast and coated on the glass plate, dried under the condition of 75°C, and the film is peeled off after drying to obtain a water-soluble film. Through holes with a diameter of 100 μm and a film thickness of 2 mm;

[0027] (2) Lay a layer of water-soluble film on the excavated ground surface and water it to moisten it;

[0028] (3) Lay a layer of water-soluble film on the excavated surface after excavating to a depth of 1m, and water it to moisten it.

Embodiment 2

[0030] A method for controlling urban construction dust, comprising the following steps:

[0031] (1) After mixing the polyvinyl alcohol resin of 50 weight parts, the polycaprolactone of 2 weight parts, the asbestos of 30 weight parts, the starch of 25 weight parts, the borate of 1 weight part and the water of 560 weight parts Form a film-forming solution at 80°C, then cast the film-forming solution onto a glass plate, dry at 80°C, peel off the film after drying to obtain a water-soluble film, and open a water-soluble film with a diameter of 200μm through hole, water-soluble film thickness is 4mm;

[0032] (2) Lay a layer of water-soluble film on the excavated ground surface and water it to moisten it;

[0033] (3) Lay a layer of water-soluble film on the excavated surface after excavating to a depth of 1m, and water it to moisten it.

Embodiment 3

[0035] A method for controlling urban construction dust, comprising the following steps:

[0036] (1) The polyvinyl alcohol resin of 45 parts by weight, the polytrimethylene adipate of 1.5 parts by weight, the talc of 25 parts by weight, the starch of 25 parts by weight, the zirconate of 0.5 parts by weight and the water of 400 parts by weight are mixed Finally, the film-forming solution is formed at 75°C, and then the film-forming solution is cast and coated on a glass plate, dried at 78°C, and the film is peeled off after drying to obtain a water-soluble film. A through hole with a diameter of 100 μm and a water-soluble film thickness of 3 mm;

[0037] (2) Lay a layer of water-soluble film on the excavated ground surface and water it to moisten it;

[0038] (3) Lay a layer of water-soluble film on the excavated surface after excavating to a depth of 1m, and water it to moisten it.

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Abstract

The invention provides a kind of city construction dust control method, comprises the following steps: (1) the polyvinyl alcohol resin of 40-50 weight part, the plasticizer of 1-2 weight part, the inorganic filler of 20-30 weight part, 20-30 parts by weight of starch, 0.5-1 parts by weight of surfactant, and 400-560 parts by weight of water are mixed to form a film-forming liquid at 70-80°C, and then cast the film-forming liquid onto On a glass plate, remove the film after drying to obtain a water-soluble film, and open a through hole with a diameter of 100-200 μm on the water-soluble film; (2) lay a layer of film on the excavated construction surface, and water it to moisten it; (3) Lay a layer of film on the excavated surface after excavating to a depth of 1m, and water it to moisten it. The method is simple, low in cost, does not affect the construction of the construction site, and the prepared film has a better effect of preventing dust, quick effect, low cost, environmental protection and no pollution.

Description

technical field [0001] The invention belongs to the technical field of greening and environmental protection engineering, and in particular relates to a method for controlling urban construction dust. Background technique [0002] Particle pollution has a wide range of influences on the air quality of cities in my country, and is the primary factor of air pollution in most cities. Particle pollution endangers the environment and human health and has become a world pollution problem. Flying dust is the main factor causing urban particle pollution. With the deepening of my country's industrialization, the problem of dust pollution is becoming more and more serious. The dust problem not only causes a large amount of resource loss, but also pollutes the surrounding environment, affecting people's normal production and life. Dust from construction sites is an important source of inhalable particulate matter pollution in urban areas. [0003] At present, the construction site mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22
Inventor 孙海龙李乃稳李绍才
Owner SICHUAN UNIV
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