Dust falling agent and preparing method thereof

A dust-reducing agent and additive technology, which is applied in the field of dust-reducing agent and its preparation, can solve the problems of sticky mixture of dust and dust-reducing agent, large size of sprinkler equipment, and large space occupied by open space, so as to achieve improved dust-reducing effect and small environmental hazards , the effect of reducing surface tension

Active Publication Date: 2018-09-21
TIANJIN TAIBAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For dust reduction on urban roads, the currently adopted methods are: (1) Sprinkling water: This method is simple, does not pollute the environment, and is relatively low in cost. Equipped with a large water storage device, so the sprinkler equipment is bulky, takes up a lot of space, and has high manufacturing costs; (2) Dust suppressant: the main principle of existing dust suppressant is to use dust suppressant to wet and adhere to the dust, so that the dust absorbs moisture After gaining weight, thus settling
According to the standard test of the environmental sanitation department, the dust reduction effect of the existing dust suppressant can only be reduced from 60-80g per square meter to 20-40g per square meter. The mixture of dust and dust suppressant is relatively sticky, which is harmful to people. The sensory sense is obviously sticky, which will still affect people's driving and walking on urban roads

Method used

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  • Dust falling agent and preparing method thereof
  • Dust falling agent and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A dust suppressant:

[0021] (1) Raw materials: 1 part of carboxymethyl cellulose, 3 parts of polyacrylamide, 1 part of hydroxypropyl methylcellulose, 1 part of lithium bentonite, 8 parts of glycerin and 986 parts of water;

[0022] The preparation method of lithium-based bentonite: Soak 10 parts of bentonite in 0.5mol / L HCl solution for 3 hours, neutralize with 0.5mol / L NaOH to adjust pH to 7.0-7.1, filter, collect filter residue, rinse filter residue with water 3-5 times, then dried, crushed, and passed through a 100-mesh sieve to obtain bentonite refined soil; after drying the obtained bentonite refined soil, put it into 1.0mol / L LiCl solution, stir for 5 hours, and precipitate, filter, wash, Dry to obtain lithium-based bentonite;

[0023] (2) Preparation method: 1) Put 1 part of lithium-based bentonite into a blender, add 1 part of water while stirring, fully stir to make a paste, and let it stand for 12 hours;

[0024] 2) Heat the paste-like lithium bentonite obt...

Embodiment 2

[0028] A dust suppressant:

[0029] (1) Raw materials: 3 parts of carboxymethyl cellulose, 4 parts of polyacrylamide, 2 parts of hydroxypropyl methylcellulose, 2 parts of lithium bentonite, 10 parts of glycerin and 979 parts of water;

[0030] The preparation method of lithium-based bentonite: Soak 10 parts of bentonite in 0.6mol / L HCl solution for 3 hours, neutralize with 0.8mol / L NaOH to adjust pH to 7.1-7.2, filter, collect filter residue, rinse filter residue with water 3-5 times, then dried, crushed, and passed through a 100-mesh sieve to obtain bentonite refined soil; after drying the obtained bentonite refined soil, put it into a 1.2mol / L LiCl solution, stir for 6 hours, and precipitate, filter, wash, Dry to obtain lithium-based bentonite;

[0031] (2) Preparation method: 1) Put 2 parts of lithium-based bentonite into a blender, add 2 parts of water while stirring, fully stir to make a paste, and let it stand for 12 hours;

[0032] 2) Heat the pasty lithium-based bent...

Embodiment 3

[0036] A dust suppressant:

[0037] (1) Raw materials: 5 parts of carboxymethyl cellulose, 5 parts of polyacrylamide, 3 parts of hydroxypropyl methylcellulose, 4 parts of lithium bentonite, 10 parts of glycerin and 973 parts of water;

[0038]The preparation method of lithium-based bentonite: Soak 10 parts of bentonite in 0.8mol / L HCl solution for 4 hours, neutralize with 0.8mol / L NaOH to adjust pH to 7.2-7.3, filter, collect filter residue, rinse filter residue with water 3-5 times, then dried, crushed, and passed through a 120-mesh sieve to obtain bentonite refined soil; after drying the obtained bentonite refined soil, put it into 1.6mol / L LiCl solution, stir for 7 hours, and precipitate, filter, wash, Dry to obtain lithium-based bentonite;

[0039] (2) Preparation method: 1) Put 4 parts of lithium-based bentonite into a blender, add 4 parts of water while stirring, fully stir to make a paste, and let it stand for 14 hours;

[0040] 2) Heat the paste-like lithium bentonit...

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Abstract

The invention relates to the technical field of raising dust controlling, and discloses a dust falling agent. The dust falling agent is prepared from, by mass, 0.1%-0.6% of carboxymethylcellulose, 0.3%-0.7% of polyacrylamide, 0.1%-0.6% of hydroxypropyl methyl cellulose, 0.1%-0.6% of lithium base bentonite, 0.8%-1.5% of glycerol and the balance water. The dust falling agent is good in dust fallingeffect, the raising dust index can be decreased to 0.2 g/m<2> to 10 g/m<2> from 60 g/m<2> to 80 g/m<2>, the obvious sticky feeling does not exist in the human body, and the effect can be kept for 8 hours; the invention also provides a preparing method for the dust falling agent.

Description

technical field [0001] The invention relates to the technical field of dust control, in particular to a dust reducing agent and a preparation method thereof. Background technique [0002] With the development of the economy and the improvement of living standards, people are paying more and more attention to air pollution, among which the dust on urban roads is a kind of air pollution that most directly affects people's lives. Flying dust is an open pollution source that enters the atmosphere due to the dust on the ground being driven by wind, man-made or other drives, and is an important part of the total suspended particulate matter in the ambient air. Flying dust is extremely harmful to human health. In mild cases, it can cause respiratory diseases and asthma; [0003] For dust reduction on urban roads, the currently adopted methods are: (1) Sprinkling water: This method is simple, does not pollute the environment, and is relatively low in cost. Equipped with a large wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 孙心淼
Owner TIANJIN TAIBAN TECH DEV
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