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Efficient dust falling agent and preparation method thereof

A dust suppressant and high-efficiency technology, applied in the field of air purification, can solve the problems of clogging the spray device of sprinklers, low efficiency of water mist capturing particulate matter, and air quality purification can not meet the demand, etc., and achieve outstanding effects.

Active Publication Date: 2021-06-29
SHIJIAZHUANG LANJIANG BIOLOGICAL ENVIRONMENT PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dust only moistened by watering or the dust particles captured by water mist can only stay on the road for a short time. After the water is lost, the dust and dust particles will return to the air and become suspended particles, which is difficult to reduce. The concentration of inhalable particulate matter in the air and the purpose of purifying the environment; in addition, the efficiency of water mist to capture particulate matter is low, and the purification effect of air quality often cannot meet the demand, and the quality of underground water or tap water has certain scaling and corrosiveness, and it will be blocked after long-term use Sprinkler, fog cannon nozzle and spray device

Method used

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  • Efficient dust falling agent and preparation method thereof
  • Efficient dust falling agent and preparation method thereof
  • Efficient dust falling agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This example relates to the preparation and application effect of the high-efficiency dust suppressant of the present invention.

[0033] The raw materials involved are acrylic acid, aspartic acid or polycondensate of aspartic acid, liquid caustic soda or sodium hydroxide, trisodium phosphate, nonylphenol polyoxyethylene ether, benzethonium chloride and liquid flavoring agent, all of which are typical products purchased in the market , considering the friendliness to the environment, it is recommended to use L-aspartic acid as the raw material aspartic acid, polyaspartic acid polyaspartic acid, polyaspartic acid sodium salt, polyaspartic acid polycondensate Potassium salt, etc., the molecular weight is 3000-5000.

[0034] Prepare dust suppressant:

[0035] a. Preparation of material A: First add part of the lye and acrylic acid in sequence to the polymerization reactor, then add the entire amount of aspartic acid or aspartic acid polycondensate, then heat up to 75-85°C...

Embodiment 2

[0045] This example relates to the influence of the preparation conditions of material A on the dust reduction effect. Table 3 below shows the dust reduction effect data of materials A with different molecular weights obtained in different ratios of raw materials acrylic acid and aspartic acid or aspartic acid polycondensate, in different reaction temperatures and times.

[0046]

[0047]

[0048] From the results in the table above, it can be seen that material A with a molecular weight between 300,000 and 1,000,000 has the highest dust reduction effect. The reason for the analysis is: the polymerization reaction under low temperature conditions is not complete, and the molecular weight of the obtained polymer is too low, and the low molecular weight polyacrylic acid cannot achieve the purpose of adsorption bridging, net catch coagulation and sedimentation, but acts as a dispersant to absorb air The small dust particles in the air are wrapped to form independent individ...

Embodiment 3

[0050] This embodiment relates to the impact of the change of surfactant and bactericide in material B on the effect of dust suppression. The following table 4 provides the material A and different material B (formulated by other conventional surfactants and bactericides) in the following table 4. Obtain) dust-suppressing agent dust-suppressing effect data.

[0051]

[0052]

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PUM

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Abstract

The invention discloses a high-efficiency dust falling agent for air dust falling in a spraying mode, and the high-efficiency dust falling agent comprises a material A and a material B. The material A is prepared by reacting raw materials acrylic acid and asparaginic acid or asparaginic acid polycondensate in an alkaline environment at the temperature of 75-85 DEG C. The material B comprises trisodium phosphate, benzethonium chloride, nonylphenol polyoxyethylene ether and the like. The obtained dust falling agent can rapidly capture and settle suspended particles in air, can purify the particle pollution concentration in the air, has an effective cleaning and purifying effect, is non-toxic and non-irritating to a human body, has no corrosion influence on spraying equipment, and especially has an outstanding effect in the aspect of relieving and treating haze weather.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a high-efficiency dust-reducing agent and a preparation method of the high-efficiency dust-reducing agent. Background technique [0002] In recent years, people have gradually realized that suspended particles in the atmosphere are harmful to human health, especially inhalable particles, which will accumulate in the respiratory system after being inhaled by the human body, causing many diseases such as heart disease, lung disease, and respiratory diseases. Inhalable particulate matter generally refers to particulate matter with a particle size of less than 10 microns, commonly known as PM10, which usually comes from the driving process of motor vehicles on unpaved asphalt and cement roads, the crushing and grinding process of materials, and the dust blown up by the wind. Because it can float in the air for a long time, the pollution to the atmospheric environment and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 赵永强倪元李静刘岩
Owner SHIJIAZHUANG LANJIANG BIOLOGICAL ENVIRONMENT PROTECTION TECH CO LTD
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