CN102766437A

CN102766437A - Coal dust inhibitor of rapid infiltration type and preparation method thereof

Info

Publication number: CN102766437A
Application number: CN2012101603327A
Authority: CN
Inventors: 刘心建; 许涛; 王泽云; 景素琴; 苏刚
Original assignee: NANFENG CHEMICAL GROUP CO Ltd
Current assignee: NANFENG CHEMICAL GROUP CO Ltd
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2012-11-07

Abstract

The invention discloses a coal dust inhibitor of rapid infiltration type and a preparation method thereof. The coal dust inhibitor is characterized by comprising, by weight percentage, 0.5-5 parts of PVA (polyvinyl alcohol), 0.1-5 parts of CMC (carboxymethyl cellulose), 0.3-3 parts of glycerin, 0.1-2 parts of a nonionic surfactant, and 85-99 parts of tap water. The preparation method is characterized by comprising the steps of: first completely dissolving the PVA with hot water at 90-100 DEG C, and completely dissolving the CMC with warm water at 30-40 DEG C; and then mixing the two aqueous solutions, adding the glycerin and the nonionic surfactant, and stirring. The coal dust inhibitor of rapid infiltration type provided by the present invention has no toxicity or pollution nuisance, easily available raw materials, low cost, convenience for usage and preparation, rapid penetration, fast film forming, thick and tough film, and good dust suppression effect, and can be applied to a variety of circumstances causing dust in processes, such as mining, transportation, storage and usage of coal.

Description

A kind of speed is oozed moulded coal powdered carbon dust inhibitor and preparation method

Technical field

The present invention relates to a kind of dust inhibitor and preparation method, particularly relate to coal dust suppressor factor and preparation method that a kind of speed is oozed type, belong to the saving of coal resources with to the technical fields such as protection improvement of atmospheric environment.

Background technology

Fossil energy is the main energy of whole world consumption at present, and the fossil energy accounting is up to 87.9% in the energy of whole world consumption in 2006, and the ratio of China is up to 93.8%.But along with the mankind's continuous exploitation, the exhaustion of fossil energy is inevitably, and most of fossil energy this century will be dangerous near by exploitation.Energy problem had more and more caused showing great attention to of the Chinese government already; Coal is one of three non-renewable on earth megafossil energy; Though the coal reserves of China is abundant relatively; But therefrom on long terms, still face such as many-sided restrictions such as condition of storage, exploration level, transport condition, safety factorss, can be obviously not enough by the coal resources of effectively development and use.In addition, the coal in China energy utilize still tradition of approach, mode, this has directly caused rate of energy low again, loss, waste problem such as serious.Coal generates coal ash in processes such as exploitation, transportation, storage and use loss has not only caused the huge waste on the energy, causes the huge loss on the national economy, and air ambient has also been caused serious pollution.Dust rises from all around with the wind, is detrimental to health.Dust eoposition causes spontaneous combustion easily, causes fire in transmission of electricity cable etc., is deposited on the generation that vehicle arrangement etc. causes security incidents such as equipment failure, operation be malfunctioning easily.Therefore, take measures to control the generation of coal dust, no matter it is be, still all very necessary to environment protection and safety in production to energy conservation.

At present, the control method about solid dust mainly contains physics covering, surface watering and sprays three kinds of dust-inhibitors.Physics hide to be exactly with tarpaulin, cover net etc. with mat directly covers material avoiding wind to scrape loss, and this method operation is inconvenient, waste time and energy, cost is higher.Though the surface watering is easy and simple to handle, with low cost, its effective dust suppression phase is short, effect is relatively poor.Become the prefered method that people carry out solid dust control to dust surface sprinkling dust-inhibitor, but the prescription of existing dust-inhibitor more or less all exists some weak point, poor like wind loading rating, effective dust suppression phase is short, infiltration is slow, consolidation time is long etc.Patent CN 101003721 discloses a kind of moist type dust-inhibitor and preparation method thereof; The common wind loading rating of moist type dust-inhibitor is relatively poor; Then the working substance content of this dust-inhibitor is low excessively again, thus be that the anti-dust effect or the validity period of product is all shorter, the occasion of only suitable short-term dust suppression.Patent CN 100537696 and CN 101508884 disclose two kinds of fixed type dust-inhibitors and the preparation method who is the main body with high molecular polymer and polyhydric macromolecular cpd respectively; The more last patent of anti-dust effect of the two and validity period increases, but its shortcoming is that set time after product poor permeability, the film forming is long.

For overcoming above-mentioned many weak points of prior art, the present invention aims to provide a kind of Nonpoisonous, non-environmental-pollution, preparation and easy to use; Cost is low, and infiltration is rapid, and consolidation time is short; Become thickness and toughness strong, effectively composite briquette powdered carbon dust inhibitor of dust suppression phase length and preparation method thereof.

Summary of the invention

The present invention is that staple prepares a kind of speed and oozes moulded coal powdered carbon dust inhibitor with Z 150PH, CMC 99.5, glycerine and nonionogenic tenside.Product safety environmental protection, scientific formulation, preparation and easy to use, cost is low, effective.

Z 150PH is the main membrane-forming agent among the present invention, and its aqueous solution has advantages of good caking property and film-forming properties, formed film stronger and water-fast washing away of toughness after fixed.CMC 99.5 is the secondary membrane-forming agent among the present invention, has good water-retentivity, dispersiveness and good shear-thinning property.Glycerine has certain moisture property, perviousness, simultaneously Z 150PH and the formed cured film of CMC 99.5 is also had plasticising function preferably.Nonionogenic tenside JFC is one type of high-efficient penetrant that penetrating quality is extremely strong, and it can impel the aqueous solution of macromolecular cpds such as full-bodied Z 150PH, CMC 99.5 to be penetrated into apace between the coal dust particulate in the middle of the space.

The present invention relates to a kind of speed and ooze moulded coal powdered carbon dust inhibitor, it specifically consists of (weight percent):

PVAC polyvinylalcohol 0.5-5

Carboxyl methyl cellulose 0.1-5

Glycerine 0.3-3

Nonionogenic tenside 0.1-2

Tap water 85-99

Speed of the present invention is oozed moulded coal powdered carbon dust inhibitor, it is characterized by: described PVAC polyvinylalcohol is molecular weight 6-12 ten thousand, and alcoholysis degree is greater than 98%.Described carboxyl methyl cellulose is that preferred paper industry is used CMC.Described nonionogenic tenside be selected from penetrating agent JFC (AEO), penetrating agent JFC-1 (TX10), penetrant JFC-2 (condenses of Fatty Alcohol(C12-C14 and C12-C18) and oxyethane), penetrating agent JFC-S (T 46155 ether compound), the penetrating agent JFC-E penetrating agent JFC series such as (AEOs) any one or multiple.The preferred penetrant JFC-2 of nonionogenic tenside wherein, penetrating agent JFC-S and penetrating agent JFC-E, most preferably penetrating agent JFC-E.

Speed of the present invention is oozed moulded coal powdered carbon dust inhibitor; Its concrete preparation method is: at first with 90～100 ℃ of hot water PVA is dissolved fully, with 30～40 ℃ of warm water CMC is dissolved fully, then with the two aqueous solution; Add glycerine, nonionogenic tenside, stir and get final product.

Embodiment

Embodiment 1

(1) add 2 parts of PVA in an amount of water, while stirring it be warmed up to 100 ℃, treat that PVA dissolves fully after, set aside for use;

(2) add 1 part of CMC in an amount of water, be incubated under 30 ℃ of conditions and stir, it is dissolved fully, for use then;

(3) (1), (2) are mixed, add 1 part of glycerine and 1 part of JFC-E, the percentage composition of moisturizing ad pond om is 100 parts, makes speed of the present invention after stirring and oozes moulded coal powdered carbon dust inhibitor.

Embodiment 2

(1) add 1.5 parts of PVA in an amount of water, while stirring it be warmed up to 90 ℃, treat that PVA dissolves fully after, set aside for use;

(2) add 1.5 parts of CMC in an amount of water, be incubated under 40 ℃ of conditions and stir, it is dissolved fully, for use then;

(3) (1), (2) are mixed, add 0.3 part of glycerine and 2 parts of JFC-2, the percentage composition of moisturizing ad pond om is 100 parts, makes speed of the present invention after stirring and oozes moulded coal powdered carbon dust inhibitor.

The foregoing description can on-the-spot be prepared, and required equipment is simple, joins existing usefulness at present.The coal dust suppressor factor of preparation is the translucent uniform solution of oyster white, has no irritating odor no visibility mechanical impurity.The coal dust suppressor factor of preparation does not stimulate skin equal National standard of test-results such as metal, rubber vehicle pipe, vehicle alkyd paint sheet corrodibility.The prepared coal dust suppressor factor of the foregoing description to drying after the 10-30 order coal sample of loosing, with 2000mL/m ²The sprinkling amount evenly is sprayed on its surface, and solution is promptly inscribed and oozed, and the surface is film forming rapidly.The coal sample of spraying suppressor factor is put into wind-tunnel after baking 120 min under 50 ℃ of conditions in baking oven, control coal seam surface wind speed is deflation 5 min under the 30 m/s conditions, and the rate of coal sample wind erosion is as a result measured its cured layer thickness all greater than 10 mm all less than 1%.

Claims

1. a speed is oozed moulded coal powdered carbon dust inhibitor, and its weight percent consists of:

。

2. ooze moulded coal powdered carbon dust inhibitor according to the said speed of claim 1, it is characterized in that: described PVAC polyvinylalcohol is molecular weight 6-12 ten thousand, and alcoholysis degree is greater than 98%.

3. ooze moulded coal powdered carbon dust inhibitor according to the said speed of claim 1, it is characterized in that: described carboxyl methyl cellulose is that preferred paper industry is used CMC.

4. ooze moulded coal powdered carbon dust inhibitor according to the said speed of claim 1, it is characterized in that: described nonionogenic tenside be selected from penetrating agent JFC (AEO), penetrating agent JFC-1 (TX10), penetrant JFC-2 (condenses of Fatty Alcohol(C12-C14 and C12-C18) and oxyethane), penetrating agent JFC-S (T 46155 ether compound), the penetrating agent JFC-E penetrating agent JFC series such as (AEOs) any one or multiple.

5. ooze moulded coal powdered carbon dust inhibitor according to the said speed of claim 4, it is characterized in that: the preferred penetrant JFC-2 of nonionogenic tenside, penetrating agent JFC-S and penetrating agent JFC-E, most preferably penetrating agent JFC-E.

6. ooze moulded coal powdered carbon dust inhibitor according to the said speed of claim 1; Its preparation is characterised in that: at first with 90～100 ℃ of hot water PVAC polyvinylalcohol is dissolved fully; With 30～40 ℃ of warm water carboxyl methyl cellulose is dissolved fully; With the aqueous solution of the two, add glycerine, nonionogenic tenside more then, stir and get final product.