Coal particle scattering inhibitor mixture, preparation method and use method

Abstract

The invention discloses a coal particle scattering inhibitor mixture, a preparation method and a use method, and belongs to the technical field of inhibitors, the coal particle scattering inhibitor mixture comprises the following components by mass: 0.17-8.5% of a surfactant, 0.6-3% of an antifoaming agent, 0.6-3% of a color developing agent, 0.2-13% of a polymer material, and the balance of water; the preparation method of the coal particle scattering inhibitor mixture is simple and easy to operate; the high-molecular material is at least one of a synthetic cellulose material, a hydrophilic synthetic high-molecular material or a natural high-molecular material, and is reasonably matched with the interfacial agent, so that fine coal particles of 2.5-10 microns (PM10) can be effectively adsorbed, the phenomenon that the fine coal particles fly off is prevented, and the effects of making the working environment comfortable and protecting the health of nearby residents and operators are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of inhibitors, and in particular relates to a coal particle scattering inhibitor mixture, a preparation method and a use method thereof. Background Art

[0002] During the storage or transfer of coal, particulate floating substances called fly ash are generated in the atmosphere. This substance is also discharged from coal storage sites, coal crushing plants or coal briquette plants. This coal fly ash usually floats in the air and attaches to plant leaves, which has a negative impact on plant growth and development. It enters the human body through breathing and accumulates in the respiratory system. Particles with a diameter of more than 10 microns are blocked outside the human nose, and particles with a diameter between 2.5 microns and 10 microns are usually deposited in the upper respiratory tract, attached to the bronchi and lungs, causing a variety of diseases and bringing harmful effects to the human body.

[0003] The current method of dealing with coal flying particles between 2.5 microns and 10 microns is to spray or sprinkle water. When the temperature drops, the water will freeze after spraying, which will increase the danger to the workers. When the temperature is high, continuous spraying is required because water evaporates quickly, which not only fails to completely prevent dust, but may also cause pollution. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to propose a coal particle scattering inhibitor mixture, a preparation method and a use method.

[0005] On the one hand, in order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a coal particle dispersion inhibitor mixture, which is composed of the following mass percentages: surfactant 0.17-8.5%, defoaming agent 0.6-3%, color developer 0.6-3%, polymer material 0.2-13%, and the rest is water.

[0006] As a further description of the above technical solution:

[0007] The surfactant is 0.5-5.0%, and the polymer material is 3.0-10.0%.

[0008] As a further description of the above technical solution:

[0009] The surfactant is an anionic or nonionic emulsifier or dispersant, and is at least one of derivatives of polyoxyethylene, sorbitan, amide, and amine.

[0010] As a further description of the above technical solution:

[0011] The surfactant is at least one of derivatives such as sorbitan monooleate, sorbitan monododecyl RATE, dodecyl dimethyl amine oxide, coconut oil alkyl dimethyl amine oxide, coconut oil fatty acid diethanolamine and coconut oil fatty acid monoethanolamine.

[0012] As a further description of the above technical solution:

[0013] The polymer material is at least one of a semisynthetic cellulose material, a hydrophilic synthetic polymer material, and a natural polymer material;

[0014] The semisynthetic cellulose material is hydroxypropyl methylcellulose (HPMC);

[0015] The hydrophilic synthetic polymer material is at least one of carboxymethyl cellulose (CMC), sodium carboxymethyl cellulose (CMCNa), calcium carboxymethyl cellulose (CMCCa), methyl cellulose (MC), hydroxypropyl cellulose (HPC), polyacrylic acid, and sodium polyacrylate;

[0016] The natural polymer material is at least one of starch, gum arabic, sodium alginate, dextran, guar gum and locust bean gum.

[0017] As a further description of the above technical solution:

[0018] The defoaming agent is at least one of ethanol, organosiloxane, polyether, silicon and ether grafted, amine-containing, imine and amide.

[0019] As a further description of the above technical solution:

[0020] The developer is at least one of magnesium hydroxide (MgOH) 2, titanium dioxide (TiO 2 ) and talc (Talc).

[0021] As a further description of the above technical solution:

[0022] The wetting agent is at least one of propylene glycol (PG), butylene glycol (BG), sorbitol, glycerol, polyethylene glycol (PEG), and sucrose.

[0023] On the other hand, in order to achieve the above-mentioned object, the present invention adopts the following method: a method for preparing a mixture of coal particle scattering inhibitor, which comprises the following steps:

[0024] 11) Take the raw materials according to the following mass percentages: surfactant 0.17-8.5%, defoamer 0.6-3%, developer 0.6-3%, polymer material 0.2-13%, and the rest is water;

[0025] 12) Add surfactant, wetting agent, defoamer and developer to the aqueous solution, and mix and stir for 15-90 minutes;

[0026] 13) Raise the temperature to 25-40°C, then slowly drip the polymer material, and disperse and stir at high speed for 2-3 hours at a stirring speed of 240-600r / min, and then cool to room temperature;

[0027] 14) A viscous white coal fly scatter inhibitor mixture is obtained.

[0028] On the other hand, in order to achieve the above-mentioned object, the present invention adopts the following method: a method for using a mixture of coal particle scattering inhibitors, comprising the following steps:

[0029] 21) Transport the mixture to coal storage sites and transfer sites where more flying occurs;

[0030] 22) Apply coal particle dispersion inhibitor mixture by spraying, jetting or watering according to the operating conditions at the coal storage and transfer site;

[0031] 23) Due to factors such as viscosity, polarity and specific gravity difference, the mixture is coated on the surface of coal particles that are flying or about to fly to prevent the fine coal particles from flying.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. In the present invention, the method for preparing the coal particle scattering inhibitor mixture is simple and easy to operate.

[0034] 2. In the present invention, by using a polymer material of at least one of synthetic cellulose material, hydrophilic synthetic polymer material or natural polymer material and a surfactant in a reasonable proportion, fine coal particles of 2.5-10 μm (PM10) can be effectively adsorbed to prevent the fine coal particles from flying around, thereby achieving a comfortable working environment and protecting the health of nearby residents and operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a flow chart of a method for preparing a mixture of coal particle dispersion inhibitor.

[0036] Figure 2 The present invention is a flow chart of a method for using a mixture of coal particle dispersion inhibitor. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] 11) taking corresponding raw materials;

[0040] 12) At room temperature, add 0.7L of water, then add 100.0g of polyvinyl alcohol, 10.0g of sorbitan monooleate, 20.0g of ethanol, and 20.0g of titanium dioxide (TiO2) in a mixing device, and stir for 30min;

[0041] 13) At this temperature, slowly drop 50.0 g of sodium alginate, stir at 600 r / min, stir at high speed for 3 hours, and cool at room temperature;

[0042] 14) A viscous white coal fly scatter inhibitor mixture is obtained.

[0043] Embodiment 2:

[0044] 11) taking corresponding raw materials;

[0045] 12) At room temperature, add 0.7 L of water, then add 30.0 g of dodecyl dimethyl amine oxide, 15.0 g of organosiloxane, and 215.0 g of magnesium hydroxide (MgOH) in a mixing device, and stir for 600 min;

[0046] 13) Raise the temperature to 40°C, slowly drop 70.0 g of carboxymethyl cellulose at this temperature, stir at 400 r / min, stir at high speed for 2.5 h, and cool at room temperature;

[0047] 14) A viscous white coal fly scatter inhibitor mixture is obtained.

[0048] Embodiment 3:

[0049] 11) taking corresponding raw materials;

[0050] 12) At room temperature, add 0.7 L of water, then add 20.0 g of sorbitan monododecyl RATE, 10.0 g of polyether, and 8.0 g of talc in a mixing device, and stir for 400 min;

[0051] 13) Raise the temperature to 35°C, slowly drop 60.0 g of hydroxypropyl methylcellulose at this temperature, stir at a speed of 500 r / min, stir at high speed for 2 hours, and cool at room temperature;

[0052] 14) A viscous white coal fly scatter inhibitor mixture is obtained.

[0053] The steps for using coal particle dispersion inhibitor are as follows:

[0054] 21) Transport the mixture to coal storage sites and transfer sites where more flying occurs;

[0055] 22) Apply coal particle dispersion inhibitor mixture by spraying, jetting or watering according to the operating conditions at the coal storage and transfer site;

[0056] 23) Due to factors such as viscosity, polarity and specific gravity difference, the mixture is coated on the surface of coal particles that are flying or about to fly to prevent the fine coal particles from flying.

[0057] Coal particle dispersion inhibitor injection experiment:

[0058] The coal particle scattering inhibitor manufactured by the above embodiment was used to capture the particulate matter floating in the sealed coal storage place. 180 minutes after injection, the particle suppression rate of particles below 10 μm was measured, and the experiment of spraying water under the same conditions was used as a comparative example. The results are as follows:

[0059]

[0060]

[0061] From the above results, it was confirmed that the coal particle scattering suppressant mixture produced by the present invention has a better suppressant effect than the comparative example in which only water was sprayed.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal particle scattering inhibitor mixture, characterized in that: The composition is composed of the following mass percentages: 0.17-8.5% of surfactant, 0.6-3% of defoamer, 0.6-3% of developer, 0.2-13% of polymer material, and the rest is water.

2. A coal particle scattering inhibitor mixture according to claim 1, characterized in that: The surfactant is 0.5-5.0%, and the polymer material is 3.0-10.0%.

3. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The surfactant is an anionic or nonionic emulsifier or dispersant, and is at least one of derivatives of polyoxyethylene, sorbitan, amide, and amine.

4. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The surfactant is at least one of derivatives such as sorbitan monooleate, sorbitan monododecyl RATE, dodecyl dimethyl amine oxide, coconut oil alkyl dimethyl amine oxide, coconut oil fatty acid diethanolamine and coconut oil fatty acid monoethanolamine.

5. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The polymer material is at least one of a semisynthetic cellulose material, a hydrophilic synthetic polymer material, and a natural polymer material; The semisynthetic cellulose material is hydroxypropyl methylcellulose (HPMC); The hydrophilic synthetic polymer material is at least one of carboxymethyl cellulose (CMC), sodium carboxymethyl cellulose (CMCNa), calcium carboxymethyl cellulose (CMCCa), methyl cellulose (MC), hydroxypropyl cellulose (HPC), polyacrylic acid, and sodium polyacrylate; The natural polymer material is at least one of starch, gum arabic, sodium alginate, dextran, guar gum and locust bean gum.

6. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The defoamer is at least one of ethanol, organosiloxane, polyether, silicon and ether grafted, amine, imine and amide.

7. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The developer is at least one of magnesium hydroxide (MgOH) 2, titanium dioxide (TiO 2 ) and talc (Talc).

8. The coal particle scattering inhibitor mixture according to claim 1, characterized in that: The wetting agent is at least one of propylene glycol (PG), butylene glycol (BG), sorbitol, glycerol, polyethylene glycol (PEG), and sucrose.

9. A method for preparing a coal particle scattering inhibitor mixture as claimed in any one of claims 1 to 8, characterized in that: The steps include: 11) Take the raw materials according to the following mass percentages: surfactant 0.17-8.5%, defoamer 0.6-3%, developer 0.6-3%, polymer material 0.2-13%, and the rest is water; 12) Add surfactant, wetting agent, defoamer and developer to the aqueous solution, and mix and stir for 15-90 minutes; 13) Raise the temperature to 25-40°C, then slowly drip the polymer material, and disperse and stir at high speed for 2-3 hours at a stirring speed of 240-600r / min, and then cool to room temperature; 14) A viscous white coal fly scatter inhibitor mixture is obtained.

10. A method for using the coal particle scattering inhibitor mixture according to any one of claims 1 to 8, characterized in that: The steps include: 21) Transport the mixture to coal storage sites and transfer sites where more flying occurs; 22) Apply coal particle dispersion inhibitor mixture by spraying, jetting or watering according to the operating conditions at the coal storage and transfer site; 23) Due to factors such as viscosity, polarity and specific gravity difference, the mixture is coated on the surface of coal particles that are flying or about to fly to prevent the fine coal particles from flying.

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