CN103711512A - Coal dust capture fixing agent - Google Patents

Abstract

The invention discloses coal dust capture fixing agent. The coal dust capture fixing agent is made by mixing hydrophilic mixture, hydrophobic mixture and water according to a mass ratio of 100:3-6:900-1000. The hydrophilic mixture is a mixture of magnesium chloride and sodium cyclamate according to a molar ratio of 1-2:1-2. The hydrophobic mixture is a mixture of sodium silicate and methanesiliconic acid sodium salt according to a molar ratio of 1:2-3. By using the coal dust capture fixing agent, a novel method of capturing coal dust on coal faces, driving faces, belt coal conveyors and return air chutes is provided; floating coal dust in air can be captured, the coal dust depositing on coal being conveyed on the belt coal conveyors can be fixed and free of being blown up by wind to form the floating coal dust.

Description

A kind of coal dust is caught solid dirt agent

Technical field

The present invention relates generally to a kind of solid dirt agent, relates in particular to a kind of coal dust and catches solid dirt agent.

Background technology

Coal dust is the accessory substance of coal production, is a kind of solid mineral particulate.Because coal dust has flammable explosiveness, thereby Safety of Coal Mine Production is had a serious impact.Meanwhile, coal dust is also very big to the harm of underground work personnel health.In addition, coal dust can be discharged to the outer atmosphere of well along with mine return air system, thereby to environment.Coal miner is suffered from pneumoconiosis number and is died from pneumoconiosis number, for a long time the prostatitis in all fields of national economy.

Existence according to coal dust is classified, and coal dust can be divided into:

(1) coal dust that swims: be suspended in the coal dust in mine air, be called for short floating dust;

(2) deposition coal dust: the coal dust settling down from mine air, is called for short dust fall.

Floating dust and dust fall can mutually transform under varying environment, floating dust becomes dust fall because the effect of being conducted oneself with dignity can settle down gradually, and dust fall when dust fall be subject to that mechanical oscillation, quick-fried wind are impacted and tunnel in the external conditions such as variation of wind speed while disturbing, it can fly upward again, becomes again floating dust.

In colliery, the most serious place of coal dust is positioned at the air return way of work plane, and coal master wants the place of producing coal dirt to be:

(1) coal-face, accounts for 45～80% of total producing coal dust quantity;

(2) driving face, accounts for 20～38% of total producing coal dust quantity;

(3) belt conveyer, accounts for 5～10% of total producing coal dust quantity.

Summary of the invention

The object of the invention is exactly in order to provide a kind of coal dust to catch solid dirt agent.

The present invention is achieved by the following technical solutions:

A kind of coal dust is caught solid dirt agent, described coal dust is caught hydrophily mixture, hydrophobicity mixture and the water mixing that solid dirt agent is 100:3-6:900-1000 by mass ratio and is formed, and described hydrophily mixture is that mol ratio is the magnesium chloride of 1-2:1-2 and the mixture of sodium cyclohexylsulfamate; Described hydrophobicity mixture is that mol ratio is the silicate of soda of 1:2-3 and the mixture of sodium methyl silicate.

Coal dust is caught a solid dirt agent, and described coal dust is caught the using method of solid dirt agent for utilizing the mode of spraying to spray to the place of rib, coal mining machine roller, work plane air return way and these producing coal dirt of belt conveyer:

(1) if spray this coal dust to belt conveyer top, catch solid dirt agent, every square metre of belt is used coal dust to catch solid dirt agent 0.08-0.5 liter;

(2) if catch solid dirt agent from this coal dust of the inside and outside atomizers spray of coal-winning machine, internal spraying pressure must not be less than 2.2MPa, and external spraying pressure must not be less than 1.6MPa;

(3) if spray this coal dust to coalhead, catch solid dirt agent, sprinkling amount is 5-8L/min;

(4) if catch solid dirt agent to spraying this coal dust in return airway, sprinkling amount is 4-6L/min.

Advantage of the present invention is:

Coal dust of the present invention is caught solid dirt agent, for the method that provides new of catching for coal-face, driving face, belt conveyer and air return way coal dust, both can catch the airborne coal dust that swims, the coal dust depositing on the coal that also can make to transport on belt conveyer is fixed and can be blown up and form the coal dust that swims.

The specific embodiment

Embodiment 1

A kind of coal dust is caught solid dirt agent, described coal dust is caught hydrophily mixture, hydrophobicity mixture and the water mixing that solid dirt agent is 100:3:920 by mass ratio and is formed, and described hydrophily mixture is that mol ratio is the magnesium chloride of 1:1 and the mixture of sodium cyclohexylsulfamate; Described hydrophobicity mixture is that mol ratio is the silicate of soda of 1:2.5 and the mixture of sodium methyl silicate.

Claims (2)

1. a coal dust is caught solid dirt agent, coal dust described in it is characterized in that is caught hydrophily mixture, hydrophobicity mixture and the water mixing that solid dirt agent is 100:3-6:900-1000 by mass ratio and is formed, and described hydrophily mixture is that mol ratio is the magnesium chloride of 1-2:1-2 and the mixture of sodium cyclohexylsulfamate; Described hydrophobicity mixture is that mol ratio is the silicate of soda of 1:2-3 and the mixture of sodium methyl silicate.

2. a kind of coal dust according to claim 1 is caught solid dirt agent, it is characterized in that it is to utilize the mode of spraying to spray to the place of rib, coal mining machine roller, work plane air return way and these producing coal dirt of belt conveyer that described coal dust is caught the using method of solid dirt agent:

(1) if spray this coal dust to belt conveyer top, catch solid dirt agent, every square metre of belt is used coal dust to catch solid dirt agent 0.08-0.5 liter;

(2) if catch solid dirt agent from this coal dust of the inside and outside atomizers spray of coal-winning machine, internal spraying pressure must not be less than 2.2MPa, and external spraying pressure must not be less than 1.6MPa;

(3) if spray this coal dust to coalhead, catch solid dirt agent, sprinkling amount is 5-8L/min;

(4) if catch solid dirt agent to spraying this coal dust in return airway, sprinkling amount is 4-6L/min.