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Environment-friendly superfine powder railway coal transportation and storage dust suppressant and preparation method

A technology of ultra-fine powder and dust suppressant, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of complex use, environmental pollution, etc., and achieve fast curing speed, high coagulation strength, and good storage stability Effect

Inactive Publication Date: 2014-08-13
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide an environment-friendly ultra-fine powder railway coal transportation and storage dust suppressant and its preparation method, aiming at solving the pollution environment existing in the existing railway coal transportation and storage dust suppression agent, using complicated question

Method used

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  • Environment-friendly superfine powder railway coal transportation and storage dust suppressant and preparation method
  • Environment-friendly superfine powder railway coal transportation and storage dust suppressant and preparation method

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preparation example Construction

[0029] Such as figure 1 As shown, the environment-friendly ultrafine powder railway coal transportation and sealing dust suppressant preparation method of the embodiment of the present invention comprises the following steps:

[0030] S101: Add 40% to 65% of physically modified starch, 25% to 45% of chemically modified starch, 2% to 5% of crosslinking agent, 3% to 5% of antifreeze, 3% to 4% of wetting agent, and 2% of dispersing agent % ~ 4%, thickener 3% ~ 4%, penetrant 2% ~ 3%, respectively accurately weighed into the ball mill;

[0031] S102: Mix evenly and pulverize through high-speed shearing ball milling to more than 1250 mesh to obtain pure shape-preserving ultra-fine powder railway coal transportation and sealing dust suppressant.

[0032] Working principle of the present invention:

[0033] The purpose of the present invention is to provide a kind of non-polluting and reproducible different plant-type modified starch as binder, and add related additives to form an e...

Embodiment 1

[0035] Example 1 (Y-1):

[0036]Weigh 20 grams of potato starch, 80 grams of white dextrin, 5 grams of calcium chloride, 0.75 grams of sodium silicate, 1 gram of sodium dodecylbenzenesulfonate, 2 grams of hydroxyethyl cellulose, and 1 carat of powder and 0.5 gram of borax were added one by one in the pulverizer, and after pulverizing for 15 minutes until the fineness was qualified, the relevant properties were measured.

Embodiment 2

[0037] Embodiment 2 (Y-2):

[0038] Weigh 30 grams of tapioca starch, 50 grams of corn oxidized starch, 5 grams of calcium chloride, 0.75 grams of potassium silicate, 1 gram of sodium dodecyl sulfonate, 2 grams of hydroxyethyl cellulose, 1 carat of open powder and Add 0.5 g of boric acid into the pulverizer one by one, pulverize for 15 minutes until the fineness is qualified, and measure the relevant properties.

[0039] The application effect of the present invention is further illustrated by comparative example:

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Abstract

The invention discloses an environment-friendly superfine powder dust suppressant for railway coal transportation and storage and a preparation method. The environment-friendly superfine powder dust suppressant for railway coal transportation and storage comprises the following components in percentage by weight: 40-65% of physical modified starch, 25-45% of chemical modified starch, 2-5% of cross linker, 3-5% of anti-freezing agent, 3-4% of wetting agent, 2-4% of dispersant, 3-4% of thickener and 2-3% of penetrating agent. The preparation method for the environment-friendly superfine powder dust suppressant for railway coal transportation and storage comprises: weighing the components of the dust suppressant in percentage by weight respectively and putting the components into a ball mill; and mixing uniformly and performing high-speed shear ball milling to above 1,250 meshes, thus obtaining the environment-friendly superfine powder dust suppressant for railway coal transportation and storage. The superfine powder material is prepared by compounding the physical modified starch and the chemical modified starch, adding an inorganic gel material and adding multiple aids, and has the construction effects of good coal bed wetting effect, thick pervious bed, high curing speed, large setting strength of the pervious bed and good dust suppression effect.

Description

technical field [0001] The invention belongs to the technical field of dust suppressants, and in particular relates to an environment-friendly superfine powder railway coal transportation and sealing dust suppressant and a preparation method. Background technique [0002] Bulk coal is often transported by open car in railway transportation. During the transportation process, due to the bumps caused by the roadbed, turnouts and rail facilities, the train is quickly blown by the wind, especially when the train enters a tunnel with a certain length, due to the effect of "piston wind", it will form an instant strong disturbance air flow, resulting in The coal powder on the surface of the coal seam in the vehicle is scattered on the ground, which not only causes a waste of energy but also causes serious environmental coal dust pollution. [0003] There have been many patent applications for railway coal transportation and storage dust suppressants, but most of the traditional ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22C08L3/02C08L3/10C08L1/26C08K3/34C08K3/16C08K3/38C08K5/42
Inventor 肖继君李孟倩耿耀宗
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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