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A kind of dust suppressant and its preparation method and application in coal transportation

A technology of dust suppressant and preservative, which is applied in the field of dust suppressant and its preparation, can solve the problems of poor comprehensive performance and achieve the effects of low cost, excellent comprehensive performance and convenient production

Active Publication Date: 2021-08-24
青岛中科睿海科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing coal dust suppressants often only meet the requirements of one aspect of dust suppression performance, toxicological indicators, corrosiveness, etc., and the comprehensive performance is poor.

Method used

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  • A kind of dust suppressant and its preparation method and application in coal transportation
  • A kind of dust suppressant and its preparation method and application in coal transportation
  • A kind of dust suppressant and its preparation method and application in coal transportation

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preparation example Construction

[0055]The present invention also provides the preparation method of the above-mentioned dust suppressant, comprising the following steps: dissolving polyvinyl alcohol, alginate and water-soluble cellulose in water according to metering, then adding polymer emulsion, mixing, and finally Add emulsifiers and preservatives, mix well, and get ready.

[0056] The solubility of polyvinyl alcohol in water is related to its degree of alcoholysis: when the degree of alcoholysis is 86% to 89%, the water solubility is the best, and it can be dissolved quickly in cold water and hot water; the degree of alcoholysis is 90% In the above cases, in order to completely dissolve, it generally needs to be heated to 60-70°C; when the degree of alcoholysis exceeds 99%, it can only be dissolved in hot water above 95°C.

[0057] The present invention provides a dust suppressant mainly used in coal transportation by adopting specific components and proportions, which can meet the dust suppression effec...

Embodiment 1

[0074] By weight, the dust suppressant of this embodiment comprises the following components:

[0075]

[0076] Preparation:

[0077] According to measurement, take polyvinyl alcohol (PVA1788), sodium alginate (500-550mPa·s), water-soluble cellulose (hydroxypropyl methylcellulose), dissolve in water, and then add polymer emulsion (water-based polyurethane dispersion ), mix well, and finally add emulsifier (tetradecyltrimethylammonium bromide), preservative (potassium sorbate), mix well, and obtain dust suppressant.

Embodiment 2

[0079] By weight, the dust suppressant of this embodiment comprises the following components:

[0080]

[0081]

[0082] Preparation:

[0083] Measured, take polyvinyl alcohol (PVA1788), sodium alginate (500-550mPa·s), water-soluble cellulose (carboxymethyl cellulose), dissolve in water, then add polymer emulsion (styrene-acrylic emulsion), mix Mix well, and finally add emulsifier (hexadecyltrimethylammonium bromide), preservative (potassium sorbate), and mix well to obtain dust suppressant.

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Abstract

The invention discloses a dust suppressant, a preparation method thereof and an application in coal transportation, belonging to the environmental protection field of dust prevention and control. The invention provides a novel dust suppressant, which comprises the following components in mass percent: 0.1-15% of polymer emulsion, 0.1-5% of polyvinyl alcohol, 0-2% of alginate, water-soluble cellulose 0.05‑2%, emulsifier 0.01‑1%, preservative 0.01‑1%, and the balance is water. The dust suppressant of the present invention can meet the regulations and requirements of the Chinese railway industry standard TB / T3210.1-2009 on dust suppression effect, toxicological index, corrosion and other performance indexes by adopting specific components and proportioning ratio. excellent.

Description

technical field [0001] The invention belongs to the environmental protection field of dust prevention and control, and in particular relates to a dust suppressant, a preparation method thereof and an application in coal transportation. Background technique [0002] The dust suppressant can quickly capture and firmly absorb the particulate dust. After drying, it can solidify and form a film on the surface of the dust, playing the role of dust suppression and dust prevention. It can be widely used in coal and mineral powder transportation, mineral earthwork storage and unloading sites , Building demolition, municipal roads and other places. [0003] According to different application places, dust suppressants are mainly divided into coal dust suppressants, road dust suppressants, mine dust suppressants, etc. They have different performance requirements for dust suppressants. Among them, the requirements for coal dust suppressants ( China Railway Industry Standard TB / T3210.1-2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22C08L75/04C08L25/14C08L29/04C08L5/04C08L1/28C08K5/098B65G69/20B65G69/18
CPCB65G69/18B65G69/20C08L25/14C08L75/04C09K3/22C08L29/04C08L5/04C08L1/284C08K5/098C08L1/286E21F5/06C08L1/28
Inventor 陈宁娟
Owner 青岛中科睿海科技有限公司
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