CN101121904A - Molded coal using coking coal washing mud as raw material - Google Patents
Molded coal using coking coal washing mud as raw material Download PDFInfo
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- CN101121904A CN101121904A CNA2007101394829A CN200710139482A CN101121904A CN 101121904 A CN101121904 A CN 101121904A CN A2007101394829 A CNA2007101394829 A CN A2007101394829A CN 200710139482 A CN200710139482 A CN 200710139482A CN 101121904 A CN101121904 A CN 101121904A
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Abstract
The invention discloses a moulded coal with coal washery sludge (for coking) as raw material. The moulded coal mainly has the constituents of coal washery sludge (70-80Wt percent), clay (5-10Wt percent), desulfurizer (5-8Wt percent), combustion improver (0-3Wt percent), waterproofing agent (3-5Wt percent) and plant-powder additive (5-8Wt percent). The moulded coal takes advantage of the features of coal washery sludge (for coking) such as high sulfur-content, high volatization and strong flue-gas during burning, and takes lime powder as desulfurizer, the production cost is low and the desulfurizing effect is good, most sulfur composition stays in the coal ash during burning and has no emission into the ambient air. The added combustion improver, plant-powder and other additives make the moulded coal easy to ignite and burn completely, and produce no black fume.
Description
Technical field
The present invention relates to a kind of solid fuel and production method thereof, refer to that specifically a kind of is the Type Coal And Its Production Methods of main raw material with the coal slime.
Background technology
In the prior art, coking coal always has a large amount of coal slime precipitations and is separated in washing process.Usually these coal slimes can be used to domestic fuel, but the commercial coal stove that this dispersion is used can cause serious smoke pollution in the process of burning coal slime.For this reason, someone proposes the method with the clay shaped fuel of coal washing, Chinese patent 2004100436214 disclosed " a kind of coal washing chamotte mould coal ", adopt coal washing mud and loess to add the water mixing moulding and make moulded coal, still having a large amount of coal smokes in this moulded coal combustion processes produces, and combustion instability is lighted difficulty, behind the water frangible.Chinese patent 961171X disclosed " a kind of spheric washed slime granule and preparation method thereof " adds solidifying agent with coal washing mud, through dewater, stir, roll, moulding, drying make the coal slime spheroidal particle, is used for industrial fluidized bed boiler oil.Its complex manufacturing, facility investment is big, is not suitable for coal washery on a small scale, and will processes after the coal washing mud of many coal washerys is concentrated, and then coal slime is scattered in a large number everywhere in transportation and more can be formed pollution caused by coal dust.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, having proposed a kind of is the moulded coal of raw material with the coking coal slime, can be civilian environment-friendly fuel with coking coal slime in-place mo(u)lding.Alleviate environmental pollution greatly.
Of the present invention a kind of be the moulded coal of raw material with the coking coal washing mud, it is characterized in that mainly comprising following component: coal washing mud 70-80Wt%; Clay 5-10Wt%.Sweetening agent 5-8Wt%; Ignition dope 0-3Wt% water-resisting agent 3-5Wt%; Plant dust additive 5-8Wt%.
Described is the moulded coal of raw material with the coking coal washing mud, it is characterized in that sweetening agent is a calcium oxide, and its content is 6-7Wt%; Described water-resisting agent is flyash and/or calcium phosphate; Described ignition dope is Repone K and/or saltpetre; Described plant dust additive is that plant powder and/or sawdust and/or vinasse and/or vinegar are poor, and its addition is 7-8Wt%.
Of the present invention is the moulded coal of raw material with the coking coal washing mud, at coking coal washing mud sulfur-bearing height, the fugitive constituent height, the heavier characteristics of flue gas in the combustion processes, added lime powder therein as sweetening agent, cost is very low and sweetening effectiveness is good, and the sulfur basic fixed during burning in the coal is in coal ash, not to airborne release.Add ignition dope and plant powder etc., make this moulded coal easily light and ratio of combustion more complete, do not produce black smoke.
Embodiment
Below to of the present invention be that the moulded coal and the production method of raw material is described in detail with the coking coal slime.
Moulded coal of the present invention is a main raw material with the coal slime of coal washery washing coking coal postprecipitation, and the characteristics of this coal slime are the sulfur-bearing height, fugitive constituent height, ash height.Past is used near the resident's in coal washery daily life fuel in a large number as domestic fuel.It discharges a large amount of sulfocompounds and black smoke in combustion processes, cause serious environmental to pollute.It also has the coal slime of being scattered in a large number in transportation simultaneously becomes important dust pollution source.Above-mentioned coal slime is added the part clay as binding agent, and this clay component can adopt the common clay in the north to get final product, if near bentonite is arranged then effect is best, calcium magnesium base bentonite particularly.Adopt flyash as water-resisting agent, can prevent that moulded coal from water after strain or defeated and dispersed, and cost is very low.Sweetening agent adopts calcium oxide, usually with lower-cost calcium lime powder or with terra alba is alternative can also.This calcium containing compound can reduce sulfur dioxide emissions largely.Plant dust can add directly that sawdust or plant powder or vinasse, vinegar are poor, furfural dregs etc., and the mixture of getting one or more arbitrary proportions wherein all can.The main effect of adding plant powder is the porosity that increases in the moulded coal, helps the perfect combustion of moulded coal, eliminates black smoke, the effect that can replenish ignition dope.
Of the present invention is that the briquette production method of raw material is fairly simple with the coking coal slime, with the moisture in the coal slime through Exposure to Sunlight or air-dry or artificial seasoning when water ratio is 16-20%, add clay, clay wherein needs sieve through 50 mesh sieves.Calcium lime powder as sweetening agent also needed 50 mesh sieves, removed blocky-shaped particle wherein.Flyash directly adopts fly ash in electric power plant.Repone K, saltpetre adopt the commercially available prod.Each composition of plant dust additive is near the buying of related products manufacturing enterprise.With stirring after above-mentioned each components in certain proportion mixing, by the pressure forming machine moulding.
Embodiment 1
Get water ratio and be 77 tons of the coking coal slimes of 16-20, cross 7 tons of calcium magnesium base bentonites behind 50 mesh sieves, mix after stirrer fully stirs.Add 4 tons in flyash then, 5 tons of calcium lime powders, 5 tons in sawdust, 2 tons in Repone K is through the stirrer secondary stirring.With the compound input pressure shaper after stirring, through seasoning to water ratio less than 7% o'clock, can dispatch from the factory.
Embodiment 2
70 tons of the higher coal slimes of the ash content of coal, water ratio 20%, 10 tons of the clays of sieving, 3 tons in flyash, sieve 6 tons of calcium lime powders mix and stir, and add 8 tons of plant stalk powders then, 3 tons in saltpetre carries out secondary stirring after pressure forming gets 100 tons of coals briquette for civillan use.
Embodiment 3 proportioning raw materials: water ratio is 74 tons in 16% a coal washing mud, and with 5 tons of calcium magnesium base bentonites, 7 tons of calcium lime powders sieve respectively and mix with coal washing mud and stir.Add 5 tons in flyash then, stir behind 7 tons in the vinasse, 2 tons in Repone K, get 100 tons of normal-pressure boiler moulded coals through pressure forming.
Embodiment 4
Proportioning raw materials: 79 tons of coal slimes, 5 tons of clays (loess), 3 tons in flyash, 8 tons of calcium lime powders, poor 5 tons of vinegar, other parameter is identical with embodiment 2.Get 100 tons of used for vegetable greenhouse moulded coals through pressure forming.
Claims (2)
1. one kind is the moulded coal of raw material with the coking coal washing mud, it is characterized in that mainly comprising following component:
Coal washing mud 70-80Wt%; Clay 5-10Wt%; Sweetening agent 5-8Wt%; Ignition dope 0-3Wt%; Water-resisting agent 3-5Wt%; Plant dust additive 5-8Wt%.
2. be the moulded coal of raw material with the coking coal washing mud according to a kind of of claim 1, it is characterized in that described sweetening agent is a calcium oxide, its content is 6-7Wt%; Described water-resisting agent is flyash and/or calcium phosphate; Described ignition dope is Repone K and/or saltpetre; Described plant dust additive is that plant powder and/or sawdust and/or vinasse and/or vinegar are poor, and its addition is 7-8Wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101394829A CN101121904A (en) | 2007-09-19 | 2007-09-19 | Molded coal using coking coal washing mud as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101394829A CN101121904A (en) | 2007-09-19 | 2007-09-19 | Molded coal using coking coal washing mud as raw material |
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| CN101121904A true CN101121904A (en) | 2008-02-13 |
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| CNA2007101394829A Pending CN101121904A (en) | 2007-09-19 | 2007-09-19 | Molded coal using coking coal washing mud as raw material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604711A (en) * | 2012-02-27 | 2012-07-25 | 刘奇 | Multifunctional coal burning sectional desulfurizing agent, civil coal stove desulfurizer and mixed coal |
| CN103555383A (en) * | 2013-11-13 | 2014-02-05 | 河南理工大学 | Process of directly forming and utilizing coal slime of coal cleaning plant |
| CN103657499A (en) * | 2013-11-19 | 2014-03-26 | 张京三 | Culm and chip mixing method and special equipment thereof |
| CN104877726A (en) * | 2015-06-15 | 2015-09-02 | 刘恩泽 | Post-coal-era renewable energy resource newly-produced coal and producing method |
| CN105296045A (en) * | 2015-11-23 | 2016-02-03 | 广西金壮锦节能技术有限公司 | High viscosity briquette waterproof composite binder |
| CN105351019A (en) * | 2014-08-20 | 2016-02-24 | 福建正仁环保有限公司 | Power generation technique based on pyrolyzation and gasification of refuse derived fuel (RDF) prepared from household refuse and incineration of fuel gas |
| CN105505499A (en) * | 2015-12-07 | 2016-04-20 | 山西大学 | Coal slime sulfur-fixing coal briquette suitable for circulating fluidized bed boiler and preparation method |
| CN105505520A (en) * | 2015-12-07 | 2016-04-20 | 山西平朔煤矸石发电有限责任公司 | Precise desulphurization method of circulating fluidized bed boiler |
| CN105733725A (en) * | 2016-02-16 | 2016-07-06 | 梁强强 | Coal ash type fire enhancing brick |
| CN108410537A (en) * | 2018-04-23 | 2018-08-17 | 佛山市尚柏科技有限公司 | A kind of combustion adjuvant promoting coal dust firing |
| CN108546580A (en) * | 2018-05-03 | 2018-09-18 | 潍坊市绿中新能源科技有限公司 | A kind of high heat environmentally friendly biomass and preparation method thereof |
| CN109181801A (en) * | 2018-10-19 | 2019-01-11 | 内蒙古昕昊环保能源有限责任公司 | A kind of moulded coal raw material and moulded coal |
-
2007
- 2007-09-19 CN CNA2007101394829A patent/CN101121904A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604711A (en) * | 2012-02-27 | 2012-07-25 | 刘奇 | Multifunctional coal burning sectional desulfurizing agent, civil coal stove desulfurizer and mixed coal |
| CN103555383A (en) * | 2013-11-13 | 2014-02-05 | 河南理工大学 | Process of directly forming and utilizing coal slime of coal cleaning plant |
| CN103555383B (en) * | 2013-11-13 | 2015-06-10 | 河南理工大学 | Process of directly forming and utilizing coal slime of coal cleaning plant |
| CN103657499A (en) * | 2013-11-19 | 2014-03-26 | 张京三 | Culm and chip mixing method and special equipment thereof |
| CN105351019A (en) * | 2014-08-20 | 2016-02-24 | 福建正仁环保有限公司 | Power generation technique based on pyrolyzation and gasification of refuse derived fuel (RDF) prepared from household refuse and incineration of fuel gas |
| CN104877726A (en) * | 2015-06-15 | 2015-09-02 | 刘恩泽 | Post-coal-era renewable energy resource newly-produced coal and producing method |
| CN105296045A (en) * | 2015-11-23 | 2016-02-03 | 广西金壮锦节能技术有限公司 | High viscosity briquette waterproof composite binder |
| CN105505499A (en) * | 2015-12-07 | 2016-04-20 | 山西大学 | Coal slime sulfur-fixing coal briquette suitable for circulating fluidized bed boiler and preparation method |
| CN105505520A (en) * | 2015-12-07 | 2016-04-20 | 山西平朔煤矸石发电有限责任公司 | Precise desulphurization method of circulating fluidized bed boiler |
| CN105505520B (en) * | 2015-12-07 | 2018-11-23 | 山西平朔煤矸石发电有限责任公司 | A kind of accurate sulfur method of circulating fluidized bed boiler |
| CN105733725A (en) * | 2016-02-16 | 2016-07-06 | 梁强强 | Coal ash type fire enhancing brick |
| CN108410537A (en) * | 2018-04-23 | 2018-08-17 | 佛山市尚柏科技有限公司 | A kind of combustion adjuvant promoting coal dust firing |
| CN108546580A (en) * | 2018-05-03 | 2018-09-18 | 潍坊市绿中新能源科技有限公司 | A kind of high heat environmentally friendly biomass and preparation method thereof |
| CN109181801A (en) * | 2018-10-19 | 2019-01-11 | 内蒙古昕昊环保能源有限责任公司 | A kind of moulded coal raw material and moulded coal |
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Open date: 20080213 |