CN101144042A - Technique for procuring desulfurization type water-solubility instant coal powder - Google Patents
Technique for procuring desulfurization type water-solubility instant coal powder Download PDFInfo
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- CN101144042A CN101144042A CN 200710018932 CN200710018932A CN101144042A CN 101144042 A CN101144042 A CN 101144042A CN 200710018932 CN200710018932 CN 200710018932 CN 200710018932 A CN200710018932 A CN 200710018932A CN 101144042 A CN101144042 A CN 101144042A
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Abstract
The present invention relates to the liquid coalite slurry dry processing technology, in particular to a desulphurization type dry liquid coalite slurry production process. The process includes the steps that: firstly, rough coal is broken up to below 30 mm through a jaw crusher or a roll crusher, the water content is controlled below 7 percent, and the coal is chosen by a dry coal cleaning way through an air dense medium fluidized bed; secondly, the full or the part of addition agent, desulfurization agent, desulfurization additive is added into the deashing float coal after the dry coal cleaning, and combined through two to eight swing type powder machines or bowl type powder machines, and powder is prepared through a parallel or series combination grade, the qualified powdered coal is collected through the air separation with a pipeline, the partial or full addition agent mixture is added again, namely, the dustless desulfurization type water soluble quick dissolving powdered coal. The appearance of the product can be non-dust emission powdery, or granulated, or massive. The present invention provides a high grade liquid coalite slurry dry formed slurry process which has high quality, desulfurization, and low cost, the liquid coalite slurry is convenient to be transported, when being used, the water content or the other industrial organic waste water is only required to be added into according to the proportion, the slurry is formed through agitating.
Description
Technical field
The present invention relates to the coal water slurry manufacturing technology, relate in particular to a kind of desulfurization type dry liquid coalite slurry production process.
Background technology
Coal water slurry is the coal by 60%-70%, and a small amount of additive and water constitute, and processes through special slurrying, can be as the oil pumping, and spray burning, its efficiency of combustion height has for oil, for overall merits such as gas, energy-saving and environmental protection.Can be widely used in Industrial Boiler, station boiler, boiler for domestic, Industrial Stoves, steel melting furnace, also can be used as numerous areas such as gasification raw material.
Wet method slurrying is generally adopted in coal water slurry manufacturing at present, its equipment heaviness, and noise is big, cost is high.The liquid water coal slurry needs special-purpose transportation means, storing device, and rigid precipitation easily takes place during storage for its transportation cost height, unsuitable long-term storage.The antifreeze problem of north of china in winter coal water slurry is also being perplexed vast coal water slurry user.
Its slurry performance variation behind the liquid water coal slurry adding sweetening agent, rheological characteristics worsens, and stores difficulty and further strengthens.
Granularity is wayward in the dry method pulping process at present, deposition efficiency is not high, and pulping concentration is low.Generally be by simple powder process, add pulping and get that product structure is single with additive.The powder process of separate unit grinding machine can't be can be continuously produced, and has the coal dust of high deposition efficiency, thereby is difficult to obtain the coal water slurry of high quality, high density.
Summary of the invention
The objective of the invention is to improve product structure in order to overcome some shortcomings part in the present slurries production technology.The invention provides a kind of high quality, desulfurization, high-quality coal water slurry dry method pulping process cheaply.
Technical scheme of the present invention is: a kind of technique for procuring desulfurization type water-solubility instant coal powder, and this processing step is as follows:
A. raw coal is crushed to below the 30mm through jaw crusher or roller crusher, moisture content is controlled at below 7%, with air dense medium fluidized-bed dry coal preparation, pneumatic separating, wind-force eliminate, air table or other dry coal preparation method obtain the deliming cleaned coal,
B. pulping additive, sweetening agent, desulfurizing assistant agent will be added in the cleaned coal behind the deliming, all or part of in proportion to not having adding wherein, make up through in parallel or series connection associating grating powder process through pendulum type ring roll pulverizer or bowl pulverizer 2-8 platform, the qualified coal dust of grating is collected with the pipeline selection by winnowing, add part or all of additive, sweetening agent, desulfurizing assistant agent mixing once more, be dustless shape procuring desulfurization type water-solubility instant coal powder.
The product of described technique for procuring desulfurization type water-solubility instant coal powder manufacturing, for simplifying any geometrical shape that packed and transported can have this coal dust figuration certain physical strength, the best is closelypacked geometrical shape.
Described technique for procuring desulfurization type water-solubility instant coal powder has in pulverizing process that air dense medium fluidized-bed dry coal preparation, pneumatic separating, wind-force are eliminated, air table or other a dry coal preparation method.
Described sweetening agent, desulfurizing assistant agent are calcium, magnesium oxide, calcium, magnesium carbonate, calcium aluminium silicate, iron, aluminum metal oxide compound etc.
Described pulping with additive can be: sulfonated lignin and derivative, sulfonated humic acid salt and derivative, alkene sulfonate, naphthalenesulfonate formal agent derivative, Mierocrystalline cellulose and derivative, olefines sulfonate, poly styrene sulfonate, anion surfactant, nonionogenic tenside are as alkylphenol polyoxyethylene carboxylic esters etc.Cross-linked amylose, sodium starch glycolate etc., polyacrylamide, polyacrylate.
Advantage of the present invention and effect:
A kind of high quality provided by the present invention, desulfurization, high-quality coal water slurry dry method pulping process cheaply, it has the high 65%-70% of pulping concentration, and viscosity is lower than 1200mPa.S and satisfactory stability.And have significant sweetening effectiveness, product appearance can be no airborne dust powdery, or particulate state, or block, or other can tightly packedly have the geometric shape of certain physical strength.It is convenient to simplify packed and transported, only need add moisture content in proportion during use or other industry contains organic wastewater, gets final product pulping through stirring.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
A kind of technique for procuring desulfurization type water-solubility instant coal powder of the present invention, be that raw coal is crushed to below the 30mm through jaw crusher or roller crusher, moisture content is controlled at below 7%, with air dense medium fluidized-bed dry coal preparation, the pulping additive will be added in the cleaned coal behind the deliming, sweetening agent, desulfurizing assistant agent is all or part of in proportion not to add wherein to having, make up through in parallel or series connection associating grating powder process through pendulum type ring roll pulverizer or bowl pulverizer 2-8 platform, the coal dust that grating behind the deliming is qualified is collected with the pipeline selection by winnowing, add part or all of additive once more, sweetening agent, desulfurizing assistant agent mixes, be dustless shape procuring desulfurization type water-solubility instant coal powder, for simplifying any geometrical shape that packed and transported can have this powder figuration certain physical strength, the best is closelypacked geometrical shape, as: rectangle, square, spheries etc., it is soluble in water that it meets the rapid disintegration of water.
Described sweetening agent, desulfurizing assistant agent are calcium, magnesium oxide, calcium, magnesium carbonate, calcium aluminium silicate, metal oxides such as iron, aluminium.
Described pulping with additive can: sulfonated lignin and derivative, sulfonated humic acid salt and derivative, alkene sulfonate, naphthalenesulfonate formal agent derivative, Mierocrystalline cellulose and derivative, olefines sulfonate (is that material copolymerization forms with styrene sulfonic acid, alpha-methyl styrene sulfonic acid or vinylbenzene, divinyl, ethene etc.), poly styrene sulfonate, anion surfactant, nonionogenic tenside are as alkylphenol polyoxyethylene carboxylic esters etc.Cross-linked amylose, sodium starch glycolate etc., polyacrylamide, polyacrylate etc.
Embodiment 1
Raw coal 820kg is crushed to below the 30mm through roller crusher, adds the 22kg sweetening agent, respectively through three pendulum type ring roll pulverizer powder process.Wherein the size distribution of coal dust 500 μ m to 100 μ m is controlled in a powder process agent, the size-grade distribution of b powder-making machine control coal dust 200 μ m-50 μ m, the size-grade distribution of c powder-making machine control coal dust 100-30 μ m.Product is collected through the selection by winnowing pipeline, gets to account for more than 75% below the pulverized coal particle 75 μ m, and 300 μ m-75 μ m account for 25%-5%, make coal dust have the highest deposition efficiency.The additive A that adds 6.5kg again mixes, and promptly gets initial product of the present invention---procuring desulfurization type water-solubility instant coal powder.This coal dust is made 8cm * 16cm * 32cm, have certain physical strength, bump, press all not easily broken bulk.With this block procuring desulfurization type water-solubility instant coal powder join a certain proportion of in its rapid disintegration of water, get final product pulping through stir shearing, concentration is at 65%-70%, apparent viscosity 100S
-1Below the 1200mPaS, the storage-stable phase was above one month.
Embodiment 2
The raw coal 1700kg that contains ash content 32%, control moisture is below 5%, after the roller crusher fragmentation, through air dense medium fluidized-bed dry coal preparation, again with the cleaned coal behind the deliming, add sweetening agent: 14kg, additive A: 11kg is all or part of in proportion to not having adding wherein, control respectively below the 75 μ m with a bowl pulverizer and a pendulum type ring roll pulverizer, and the above coal powder size distribution of 75 μ m, must account for more than 75% below the pulverized coal particle 75 μ m, 300 μ m-75 μ m account for 25%-5%, coal dust has the highest deposition efficiency, promptly gets procuring desulfurization type water-solubility instant coal powder of the present invention.Again this powder is made and had certain physical strength diameter 3mm-80mm sphere.This spherical procuring desulfurization type water-solubility instant coal powder joins in a certain proportion of water, rapidly disintegration, stir shear coal water slurry, concentration is at 65%-70%, surface viscosity 100S
-11200mPa.s below, the storage-stable phase was above one month.
Embodiment 3
The raw coal 2300kg that contains ash content 28%, control moisture is below 6%, after the jaw crusher fragmentation, through selection by winnowing, low ash extract coal is united grating powder process through two pendulum type ring roll pulverizers, control the size-grade distribution of thickness coal dust and shared massfraction respectively, must make up the result of coal dust: particle accounts for more than 75% below 75 μ m, 300 μ m-75 μ m account for 25%-5%, coal dust has the highest deposition efficiency, adds sweetening agent: 21kg, and additive B: 19kg stirs, promptly get procuring desulfurization type water-solubility instant coal powder of the present invention, this powder is made had certain physical strength 10cm * 20cm * 40cm square.Should join in a certain proportion of water by the bulk procuring desulfurization type water-solubility instant coal powder, rapidly disintegration gets final product pulping through stirring to shear, and concentration is at 65%-70%, apparent particle size 100S
-11200mPa.s below, the storage-stability phase was above one month.
Described additive A is formed: poly-methyl naphthalene sulfonic acid sodium formal: 30%-70%, sodium alginate 5%-30%, sodium lauryl sulphate 10%-30%, cross-linked amylose 8%-40%, sulfonated humic acid salt formal 20%-60%.
Additive B is formed: poly-methyl naphthalene sulfonic acid sodium formal: 25%-85%, CMC:3%-25%, sulfonated humic acid salt formal: 18%-54%, the molten powder of crosslinked straight chain: 6%-44%, sodium lignosulfonate: 5%-60%, low substituted cellulose: 3%-20% (water-retaining agent, aqua) fatty alcohol-polyoxyethylene ether: 3%-20%
Sweetening agent is formed: calcium oxide: 50%-80%, magnesium oxide: 10%-30%, calcium aluminium silicate: 10%-30%, ferric oxide: 5%-15%, aluminum oxide: 1%-10%.
Claims (6)
1. technique for procuring desulfurization type water-solubility instant coal powder is characterized in that this processing step is as follows:
A. raw coal is crushed to below the 30mm through jaw crusher or roller crusher, moisture content is controlled at below 7%, with air dense medium fluidized-bed dry coal preparation, pneumatic separating, wind-force eliminate, air table or other dry coal preparation method obtain the deliming cleaned coal,
B. pulping additive, sweetening agent, desulfurizing assistant agent will be added in the cleaned coal behind the deliming, all or part of in proportion to not having adding wherein, make up through in parallel or series connection associating grating powder process through pendulum type ring roll pulverizer or bowl pulverizer 2-8 platform, the qualified coal dust of grating is collected with the pipeline selection by winnowing, add part or all of additive, sweetening agent, desulfurizing assistant agent mixing once more, be dustless shape procuring desulfurization type water-solubility instant coal powder.
2. the product of technique for procuring desulfurization type water-solubility instant coal powder manufacturing according to claim 1 is characterized in that the best is closelypacked geometrical shape in order to simplify any geometrical shape that packed and transported can have this coal dust figuration certain physical strength.
3. technique for procuring desulfurization type water-solubility instant coal powder according to claim 1 is characterized in that having air dense medium fluidized-bed dry coal preparation in pulverizing process, pneumatic separating, wind-force are eliminated, air table or other dry coal preparation method.
4. a kind of technique for procuring desulfurization type water-solubility instant coal powder according to claim 1 is characterized in that described sweetening agent, desulfurizing assistant agent are calcium, magnesium oxide, calcium, magnesium carbonate, and calcium aluminium silicate, iron, aluminum metal oxide compound,
Described pulping with additive can be: sulfonated lignin and derivative, sulfonated humic acid salt and derivative, alkene sulfonate, naphthalenesulfonate formal agent derivative, Mierocrystalline cellulose and derivative, olefines sulfonate, poly styrene sulfonate, anion surfactant, nonionogenic tenside are as alkylphenol polyoxyethylene carboxylic esters etc.Cross-linked amylose, sodium starch glycolate etc., polyacrylamide, polyacrylate.
5. a kind of technique for procuring desulfurization type water-solubility instant coal powder according to claim 1, it is characterized in that described pulping additive, additive A is formed: poly-methyl naphthalene sulfonic acid sodium formal: 30%-70%, sodium alginate 5%-30%, sodium lauryl sulphate 10%-30%, cross-linked amylose 8%-40%, sulfonated humic acid salt formal 20%-60%
Additive B is formed: poly-methyl naphthalene sulfonic acid sodium formal: 25%-85%, CMC:3%-25%, sulfonated humic acid salt formal: 18%-54%, the molten powder of crosslinked straight chain: 6%-44%, sodium lignosulfonate: 5%-60%, low substituted cellulose: 3%-20%, fatty alcohol-polyoxyethylene ether: 3%-20%.
6. a kind of technique for procuring desulfurization type water-solubility instant coal powder according to claim 4, it is characterized in that described sweetening agent composition: calcium oxide: 50%-80%, magnesium oxide: 10%-30%, calcium aluminium silicate: 10%-30%, ferric oxide: 5%-15%, aluminum oxide: 1%-10%.
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| CN 200710018932 CN101144042B (en) | 2007-10-19 | 2007-10-19 | Technique for procuring desulfurization type water-solubility instant coal powder |
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| CN 200710018932 CN101144042B (en) | 2007-10-19 | 2007-10-19 | Technique for procuring desulfurization type water-solubility instant coal powder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724478A (en) * | 2008-10-15 | 2010-06-09 | 周国君 | Coal water slurry and concentrate thereof |
| CN102604703A (en) * | 2011-01-19 | 2012-07-25 | 王景龙 | Biomass energy fuel combination and preparation method thereof |
| CN102796576A (en) * | 2012-09-12 | 2012-11-28 | 安徽理工大学 | Method for preparing coal water slurry by utilizing acrylonitrile waste water |
| CN103175195A (en) * | 2011-12-23 | 2013-06-26 | 青岛特利尔环保锅炉工程有限公司 | Suspension type fluidized combustion process for preparing coal water slurry from industrial sewage |
| CN103849441A (en) * | 2014-02-27 | 2014-06-11 | 东莞市安美润滑科技有限公司 | Waste metal processing liquid coal water slurry fuel |
| CN109539295A (en) * | 2018-12-06 | 2019-03-29 | 广东清远蒙娜丽莎建陶有限公司 | With baking sulphur intelligence feeding system in a kind of furnace |
| CN112080325A (en) * | 2020-09-17 | 2020-12-15 | 四川路加四通科技发展有限公司 | Coal water slurry additive and preparation method and application thereof |
| CN117244653A (en) * | 2023-11-20 | 2023-12-19 | 河南心连心化学工业集团股份有限公司 | Biomass charcoal coal crushing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0711268A (en) * | 1991-12-27 | 1995-01-13 | Nippon Com Kk | Production of deashed high-concentration coal-water slurry |
| CN1098127C (en) * | 1997-09-17 | 2003-01-08 | 中国矿业大学北京研究生部 | Deep physical coal deliming and desulphurizing technology |
| CN1252416C (en) * | 2003-02-27 | 2006-04-19 | 刘月平 | Method for preparing coal water slurry |
| CN1538110A (en) * | 2003-10-23 | 2004-10-20 | 北京海淀华煤水煤浆技术开发中心 | Press grinding technology for preparing water-coal sturry |
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2007
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724478A (en) * | 2008-10-15 | 2010-06-09 | 周国君 | Coal water slurry and concentrate thereof |
| CN101724478B (en) * | 2008-10-15 | 2013-10-02 | 周国君 | Coal water slurry and concentrate thereof |
| CN102604703A (en) * | 2011-01-19 | 2012-07-25 | 王景龙 | Biomass energy fuel combination and preparation method thereof |
| CN103175195A (en) * | 2011-12-23 | 2013-06-26 | 青岛特利尔环保锅炉工程有限公司 | Suspension type fluidized combustion process for preparing coal water slurry from industrial sewage |
| CN102796576A (en) * | 2012-09-12 | 2012-11-28 | 安徽理工大学 | Method for preparing coal water slurry by utilizing acrylonitrile waste water |
| CN103849441A (en) * | 2014-02-27 | 2014-06-11 | 东莞市安美润滑科技有限公司 | Waste metal processing liquid coal water slurry fuel |
| CN103849441B (en) * | 2014-02-27 | 2016-06-01 | 安美科技股份有限公司 | Intermetallic composite coating waste water cws fuel |
| CN109539295A (en) * | 2018-12-06 | 2019-03-29 | 广东清远蒙娜丽莎建陶有限公司 | With baking sulphur intelligence feeding system in a kind of furnace |
| CN112080325A (en) * | 2020-09-17 | 2020-12-15 | 四川路加四通科技发展有限公司 | Coal water slurry additive and preparation method and application thereof |
| CN112080325B (en) * | 2020-09-17 | 2021-07-20 | 四川路加四通科技发展有限公司 | Coal water slurry additive and preparation method and application thereof |
| CN117244653A (en) * | 2023-11-20 | 2023-12-19 | 河南心连心化学工业集团股份有限公司 | Biomass charcoal coal crushing device |
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| CN101144042B (en) | 2013-04-10 |
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