Compound moisturizing dust suppressant and production method

A dust suppressant and composite technology, applied in the field of environmental pollution control, can solve the problems of coverings and environmental pollution, ineffective solutions, large manpower and material resources, etc., and achieve the effects of suppressing flying, low cost, and simple preparation process

Pending Publication Date: 2019-12-31
WANBAO MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The covering method uses a lot of manpower and material resources, which cannot effectively solve t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The steps of the preparation method of the moisturizing dust suppressant are as follows: the first step is to prepare the coagulation and moisturizing agent sodium carboxymethyl cellulose grafted with acrylamide, and dissolve 1.9-2.1% sodium carboxymethyl cellulose into water at 45-50°C Mix evenly, add 0.9-1.1% acrylamide into the above mixture until it is completely fused, then add 0.004-0.007% initiator potassium persulfate, keep at 65-70°C, keep the temperature for 4.9-5.1 hours, and then separate with ethanol Purify. Put the purified mixture into a drying oven to dry to obtain sodium carboxymethyl cellulose grafted acrylamide polymer.

[0015] In the second step, dissolve the prepared sodium carboxymethyl cellulose grafted acrylamide polymer into water, stir until completely dissolved, then add 5-10% sodium silicate and 0.2-0.3% fatty alcohol polyoxyethylene Ether, stirred slowly and evenly to obtain a composite moisturizing and dust suppressing agent.

[0016] Th...

Embodiment 1

[0019] The dust suppressant in this example is prepared by the following method: Weigh 0.5% of carboxymethylcellulose sodium grafted acrylamide, 0.004% of initiator, 10% of sodium silicate, and 0.3% of surfactant by weight percentage spare;

[0020] The preparation of the composite moisturizing dust suppressant is completed according to the following steps: first dissolve sodium carboxymethylcellulose into water at 40°C and mix evenly, then add acrylamide to it, then add the initiator, react at a constant temperature of 65°C, and then separate and purify with ethanol , put into a drying box and dry to obtain sodium carboxymethyl cellulose grafted acrylamide polymer. The prepared polymer is dissolved in water, stirred until it is completely dissolved, then sodium silicate and fatty alcohol polyoxyethylene ether are added, and slowly stirred evenly to obtain the stock solution of the compound moisturizing and dust suppressing agent. The dust suppressant stock solution prepared ...

Embodiment 2

[0022] The dust suppressant in this example is prepared by the following method: Weigh 0.55% of carboxymethylcellulose sodium grafted acrylamide, 0.006% of initiator, 8% of sodium silicate, and 0.3% of surfactant by weight percentage spare;

[0023] The preparation of the composite moisturizing and dust suppressing agent is completed according to the following steps: first dissolve sodium carboxymethyl cellulose into water at a temperature of 45°C and mix evenly, then add acrylamide to it, then add an initiator, react at a constant temperature of 65°C, and carry out the reaction with ethanol. Separation and purification, drying in a drying box to obtain sodium carboxymethyl cellulose grafted acrylamide polymer. The prepared polymer is dissolved in water, stirred until it is completely dissolved, then sodium silicate and fatty alcohol polyoxyethylene ether are added, and slowly stirred evenly to obtain the stock solution of the compound moisturizing and dust suppressing agent. ...

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PUM

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Abstract

The invention relates to a compound moisturizing dust suppressant and a production method. The moisturizing dust suppressant comprises the following components in percentage by weight: 0.5-0.6% of a coagulation moisturizer, 5-10% of a moisture absorbent, 0.2-0.3% of a surfactant and the balance water; and the coagulation moisturizer is a sodium carboxymethylcellulose-grafted acrylamide polymer, the surfactant is fatty alcohol-polyoxyethylene ether, and the moisture absorbent is sodium silicate. The compound moisturizing dust suppressant has a suppressing effect on flying dust generated in an operation process of a surface mine, working environments of electric precise instruments and workers are improved, environmental pollution is reduced, and the compound moisturizing dust suppressant islow in cost, convenient to produce and low in corrosivity, and has a good dust suppressing effect.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control, and in particular relates to a composite moisture-retaining and dust-suppressing agent and a preparation method, in particular to a dust-suppressing agent for metal mine unloading and road surface dust and its use method. Background technique [0002] During the operation of open-pit mines, road transportation is prone to generate dust, which affects the working conditions of vehicle parts and affects the air quality in the area. Existing dust suppression methods usually use water and spray it by sprinklers. During mine operations in the dry season, the frequency of watering must be increased, the amount of watering and water consumption must be increased, and water resources are wasted. The dust generated in mine operations affects the electric precision instruments in the power distribution room and affects the health of the staff. [0003] During the unloading process...

Claims

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Application Information

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IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 杨志军张领华张俊
Owner WANBAO MINING
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