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Construction site dust suppressant

A technology for construction sites and dust suppressants, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of non-degradable dust suppressants, secondary pollution, plant damage, etc., and achieve good wind erosion resistance and cost. Low cost, good hydrophobicity

Inactive Publication Date: 2019-01-11
北京五洲蓝田环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most dust suppressants have secondary pollution. For example, moisture-absorbing inorganic salt dust suppressants are mostly corrosive and have certain harm to plants; adhesive dust suppressants are not easy to degrade, and have a high residual rate, causing secondary pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A construction site dust suppressant, the specific preparation steps are: uniformly mix 80 parts of starch and 5 parts of triallyl cyanurate, heat it in a water bath, and maintain it at 46 ° C, add 20 parts of modified fiber under stirring Then heat and maintain at 80°C, after reacting for 60 minutes, cool to 47°C, add 2 parts of polyethylene, 3 parts of vinyl acetate and 3 parts of chlorophyll copper complex salt, mix well, concentrate to obtain liquid dust suppression for construction sites agent. The above-mentioned construction site dust suppressant is mixed with water at a ratio of 1:6-1:18, and after being evenly sprayed on the ground, it will be effectively absorbed by the surface dust and soil, bonding the loose surface dust together, and will be with the Soil minerals undergo complexation reactions to form stable aggregates (aggregate structure), forming a smooth and flat "stable surface layer" of about 0.1-10cm. The above-mentioned construction site dust supp...

Embodiment 2

[0028] A construction site dust suppression agent, the specific preparation steps are: uniformly mix 90 parts of bone glue and 5 parts of triallyl cyanurate, heat in a water bath, and maintain at 45 ° C, add 20 parts of modified fiber under stirring Then heat and maintain at 75°C, after reacting for 70 minutes, cool to 45°C, add 1 part of polyethylene, 4 parts of vinyl acetate and 3 parts of sodium ferric chlorophyllin, mix well, concentrate to obtain a liquid construction site dust suppressant. The above-mentioned construction site dust suppressant is mixed with water at a ratio of 1:6-1:18, and after being evenly sprayed on the ground, it will be effectively absorbed by the surface dust and soil, bonding the loose surface dust together, and will be with the Soil minerals undergo complexation reactions to form stable aggregates (aggregate structure), forming a smooth and flat "stable surface layer" of about 0.1-10cm. The above-mentioned construction site dust suppressant can...

Embodiment 3

[0036] Viscosity test: test at 5°C, 10°C, 15°C, 20°C, 25°C, 30°C, 35°C, 40°C, 45°C, 50°C, 55°C, 60°C, 65°C, 70°C 1 Viscosity of construction site dust suppressant, the test results are shown in Table 3:

[0037] table 3

[0038]

[0039]

[0040] Viscosity determines the size of the cohesion between soil particles, is the determinant of the coagulation effect during dust control, and determines the application properties of dust suppressants. It can be seen from Table 3 that starch, triallyl cyanurate and modified cellulose undergo a cross-linking reaction to form a three-dimensional space network structure, which improves the bonding performance of the starch and makes the bonding of the dust suppressant for the construction site finally obtained. Good performance, better than the construction site dust suppressant on the market.

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Abstract

The invention discloses a construction site dust suppressant. The construction site dust suppressant comprises a natural polymeric adhesive, a controlled cross-linking and curing stabilizer, modifiedcellulose, a water-based flame retardant material and a pigment according to a mass ratio of (60-90):(1-20):(15-30):(1-20):(1-10), wherein the natural polymeric adhesive is a plant-based adhesive or an animal-based adhesive; the controlled cross-linking and curing stabilizer is triallyl cyanurate; the water-based flame retardant material comprises polyethylene and vinyl acetate; and the pigment isa natural pigment. The dust suppressant has the advantages of excellent bonding performance, small accumulation loss of soil particles per unit area, high dust suppression efficiency, good moisturizing performance, good anti-weathering effect, good resistance to rain erosion, long dust suppression time, natural degradation and environmental friendliness.

Description

technical field [0001] The invention relates to the field of environmental dust suppression, in particular to a construction site dust suppressant. Background technique [0002] Construction activities are one of the most important survival and development activities for human beings. During the construction process, due to the crushing of materials and the disturbance of the ground, particulate matter is discharged. Small particles will drift with the wind and enter the atmosphere to form dust, causing a decrease in visibility and affecting the surrounding air quality. Studies have shown that particulate matter with a particle size of less than 10 μm is the most harmful category of suspended particulate matter to the environment and human health. Particles larger than 10 μm cannot enter the lungs, and can be intercepted by the nose and throat in the respiratory tract. Particles of 5 to 10 μm can be removed through the physical mechanism of the throat itself, while particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22C08B31/00C08H8/00
CPCC08B31/00C08H8/00C09K3/22
Inventor 郑同利郝景林郑同超许耕昕李宝华
Owner 北京五洲蓝田环境科技有限公司