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A kind of encrusting agent and its preparation method and application

The technology of a crusting agent and a surfactant is applied in the field of crusting agent and its preparation, which can solve the problems of low dust suppression efficiency, and achieve the effects of improving dust suppression efficiency, improving compatibility and ensuring stability.

Active Publication Date: 2021-11-09
NANJING NARI GROUP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, what the present invention aims to solve is the defect of low dust suppression efficiency in the existing dust suppression means, and then provides a crusting agent with high dust suppression efficiency and its preparation method and application

Method used

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  • A kind of encrusting agent and its preparation method and application
  • A kind of encrusting agent and its preparation method and application
  • A kind of encrusting agent and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment provides a crusting agent and its preparation method. This crusting agent is made up of the modified cellulose of 18g, the modified starch of 60g, the tensio-active agent of 4g, the polyacrylamide of 3.5g and the glycerol of 10g, wherein modified cellulose is carboxymethyl cellulose; Modified The starch is carboxymethyl starch; the surfactant is sodium dodecylbenzenesulfonate; the number average molecular weight of polyacrylamide is 10 million;

[0029] The preparation method of the above-mentioned crusting agent includes the following steps: mixing the above-mentioned raw materials in proportion, and stirring at a stirring speed of 1000 rpm and a temperature of 25° C. for 2 hours to prepare the crusting agent.

Embodiment 2

[0031] This embodiment provides a crusting agent and its preparation method. This crusting agent is made up of the modified cellulose of 15g, the modified starch of 70g, the surfactant of 3g, the polyacrylamide of 4g and the glycerol of 8g, wherein modified cellulose is hydroxymethyl cellulose; Modified starch It is carboxymethyl starch; the surfactant is fatty alcohol polyoxyethylene ether; the number average molecular weight of polyacrylamide is 5 million;

[0032] The preparation method of the above-mentioned crusting agent includes the following steps: mixing the above-mentioned raw materials in proportion, and stirring at a stirring speed of 500 rpm and a temperature of 30° C. for 1 hour to prepare the crusting agent.

Embodiment 3

[0034] This embodiment provides a crusting agent and its preparation method. This crusting agent is made up of the modified cellulose of 20g, the modified starch of 50g, the tensio-active agent of 5g, the polyacrylamide of 3g and the glycerol of 12g, wherein modified cellulose is carboxymethyl cellulose; Modified starch It is hydroxymethyl starch; the surfactant is sodium dodecylbenzenesulfonate; the number average molecular weight of polyacrylamide is 20 million;

[0035] The preparation method of the above-mentioned crusting agent includes the following steps: mixing the above-mentioned raw materials in proportion, and stirring at a stirring speed of 1500 rpm and a temperature of 20° C. for 3 hours to prepare the crusting agent.

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Abstract

The invention discloses a crusting agent, a preparation method and application thereof. The crusting agent adopts modified cellulose, modified starch, surfactant, polyacrylamide and glycerin, and rationally configures the ratio of each raw material. After testing, the crusting agent is mixed with water and sprayed on coal After the water penetrates and volatilizes, it forms a protective layer on the surface of the coal powder to prevent the dust from being raised by the coal powder, and its dust suppression efficiency is greater than 90%. At the same time, the encrusting agent has good moisturizing performance, a moisture absorption rate of more than 15%, environmentally friendly raw materials, and a biodegradability of more than 99%.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a crusting agent and its preparation method and application. Background technique [0002] With the rapid development of the economy, the problem of environmental pollution has become increasingly prominent, among which suspended particulate matter is an important cause of environmental pollution, and dust from a large number of construction sites and bare land, as one of the sources of suspended particulate matter, has also become the key to the prevention and control of air pollution . The current treatment measures are mainly to cover the bare land with dust-proof nets, spray with fog cannons and use inorganic salt dust suppressants. [0003] Since the holes of the dust-proof net are much larger than the dust particles, the effect of dust suppression is not obvious after being covered with thatch. Moreover, the quality of dust-proof nets on the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 张世帅鞠振福靳昕吴刘锁李鹏徐泽强李晓锐刘吉卫章勋
Owner NANJING NARI GROUP CORP
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