CN106047387A - Efficient and environment-friendly coal and preparation method thereof - Google Patents
Efficient and environment-friendly coal and preparation method thereof Download PDFInfo
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- CN106047387A CN106047387A CN201610382123.5A CN201610382123A CN106047387A CN 106047387 A CN106047387 A CN 106047387A CN 201610382123 A CN201610382123 A CN 201610382123A CN 106047387 A CN106047387 A CN 106047387A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention relates to a coal carbonization technology, in particular to a preparation method of efficient and environment-friendly coal and a product of the efficient and environment-friendly carbon, and belongs to the field of coal improvement. The efficient and environment-friendly coal is prepared through the steps that raw materials are subjected to grinding and compression moulding, and then high-temperature carbonization is carried out. The raw materials comprise, by mass, 100 parts of single-variety coal, 1-30 parts of asphalt, 1-30 parts of adhesive and 1-30 parts of carbonate or bicarbonate. By means of carbonization treatment, sulfur-containing matter and other matter capable of generating polluting gas after being combusted in the coal are basically removed, therefore, the coal has the advantage of being environmentally friendly as fuel and further has the advantage of being efficient, and fire coal can be saved by about 30%.
Description
Technical field
The present invention relates to the charring process of a kind of coal, particularly relate to a kind of high-efficiency environment friendly charcoal manufacture method and products thereof, belong to
Field is improved in coal.
Background technology
Along with the relevant environmental protection standard-required of environmental conservation is increasingly stricter, cause the most a lot with coal as fuel consumption
Enterprise, the pollutant such as carbon dioxide, sulfur dioxide, nitrogen oxides and flue dust of burning release exceed existing national environmental standard,
Suffer that environmental administration requires rectification or stops producing.Therefore, the enterprise that some strength are strong has to use the combustion of cost higher sky
Gas or electricity are heat source, enterprise that some strength are weak or directly close down.Find a kind of high-efficiency environment friendly, fuel with low cost
Become enterprise's demand for fuel direction, be also the direction of vast researcher research and development.
Therefore, from the point of view of present stage, enterprise still can life-time service coal as the energy.So, common coal how is solved
The pollution problem produced, and improve the calorific value of common coal, become the problem that those skilled in the art need solution badly.
In prior art, there is the technology of desulfurization of coal, at least can alleviate the pollution that environment is produced by raw coal combustion.Raw coal takes off
Sulphur content is flue gas desulfurization technique after desulfurization in the front desulfurization of burning, burning and burning.
Before burning, Desulfurization Technology of Coal is mainly coal washing desulfurization, purifies coal the most before combustion, removes in raw coal
Part sulphur content and ash.It is divided into Physical, chemical method and microbial method etc..Physical: refer mainly to gravity concentration, utilizes in coal and has
Machine matter makes them separate with the density variation of troilite.The influence factor of this method mainly has the particle size after cracking of coal and the state of sulfur
Deng.Chemical method: physical-chemical process and pure chemistry method can be divided into.Physical-chemical process i.e. flotation；Chemical method includes again alkali desulphurization, gas
Body desulfurization, pyrolysis and hydro-desulfurization, oxidation desulfurization etc..Microbial method: be applied to coal on the basis of bioleaching metal
One biological engineering new technique of industry, can remove the organic sulfur in coal and inorganic sulfur.But, physics choosing is washed and is only capable of removing in coal
The 80% of inorganic sulfur, only accounts for 15%～30% of sulfur total content in coal, it is impossible to satisfied coal-fired sulfur dioxide pollution control requirement, therefore only
As a kind of supplementary means of coal desulfurization, and can not improve the calorific value of coal.
Desulfurization Technology of Coal in burning, i.e. adds limestone or white clouds masonry desulfurizing agent, calcium carbonate, carbon in coal combustion process
Acid magnesium decomposes generates calcium oxide, magnesium oxide, with sulfur dioxide in flue gas reacting generating salt, discharges with ash.It is anti-
Answering process is that in coal, combustion of sulfur generates sulfur dioxide, and limestone calcination is decomposed into cellular calcium oxide simultaneously, and sulfur dioxide arrives
Adsorbent surface also reacts, thus reaches desulfurized effect, and does not improve the calorific value of coal.
Flue gas desulfurization technique after burning, the ultimate principle of flue gas desulfurization is acid-base neutralization reaction.Sulfur dioxide in flue gas
It is acidic materials, by reacting with alkaline matter, generates sulphite or sulfate, thus by the sulfur dioxide in flue gas
Removing.The most frequently used alkaline matter is limestone, quick lime and Calx, it is also possible to other alkaline matter such as ammonia and sea water, and
And do not improve the calorific value of coal.
And enterprise's such scheme to be used is it is necessary to transform existing equipment, for a lot of enterprises, this is one
The expense that pen is huge, effect also will not be highly desirable.
Chinese patent literature CN1046347A discloses " a kind of method improving activity of briquettes ", and the method is mainly by former
Coal dust is broken to certain particle size, preheated mixing under uniform temperature and pressure condition, carbonization, compressing, cooling, or through mixed
Material, compressing, stoving process make moulded coal, add a certain amount of binding agent in processing technology, it is possible to add calcium salt；In this raw coal
Including one or several high volatile coals and one or several low-volatite coal.The formula of concrete this moulded coal of making is as follows: Gao Hui
Send out point coal dust 5～90%, low volatile pulverized coal 5～90%, binding agent 5～15%；Or formula is as follows: high volatile coal dust 5
～80%, low volatile pulverized coal 5～80%, binding agent 5～15%, solid calcium salt 2～8%.Though using the program can improve type
Coal activity.But it has problems as a kind of moulded coal, calorific intensity, i.e. easily burn under fired state and dissipate into powder, affect into one
The burning of step；Further, its problem that can not fundamentally solve to produce pollution gas during burning；And, it can not carry
The Actual combustion value of high product.
Coal coking is expected to solve the problems referred to above.Coking is to be heated to about 1000 DEG C, by heat under isolation air conditions
Decompose and coking produces coke, coke-stove gas and the technical process of coking chemistry product.On the one hand, in process of coking, coal
A lot of chemical substances be separated.Therefore, contrasting raw coal, coke can be as a kind of relatively clean fuel.Coal-fired
It is changed into and makes charcoal, also can alleviate the pollution to environment.On the other hand, through coke making process, it is possible to the fuel value of improving product.
But in prior art, coking, it is common that from hard coal or brown coal, refine out coke.Hard coal is bituminous coal and nothing
The general name of bituminous coal, and brown coal a kind of coal that to be a kind of degree of coalification minimum, also referred to as bavin coal, be a kind of between peat and pitch coal it
Between brownish black, lacklustre rudimentary coal, chemical reactivity is strong, in atmosphere easily air slaking, is difficult to storage and remote fortune, directly fires
During burning serious to air pollution.It is to say, prior art cannot refine coke single variety coal high for degree of coalification,
Especially anthracite.Prior art is thought, only uses the binding coal such as rich coal or coking coal, and the coke that ability output is qualified produces
Product, according to anthracite, owing to its degree of metamorphism is high, can not produce colloid, be difficult to mainly joining as coke making and coal blending when being heated
Material.Add a small amount of anthracite, be also merely intended to serve as leaning agent.
As the Chinese invention patent of Application No. 97101391.8 discloses a kind of coking process.The method use rich coal with
Anthracite carrys out coking jointly, and rich coal and anthracitic ratio are (2～5): (5～8).
And for example, the Chinese invention patent of Application No. 200910020679.X discloses a kind of vast scale anthracite coal blending refining
Burnt new technology, the dispensing of this technique is: coking coal 30,1/3 coking coal 40, anthracite 30.
Summary of the invention
The invention solves the problems that the problems referred to above, thus a kind of high-efficiency environment friendly charcoal is provided.
The technical scheme that the present invention solves the problems referred to above is as follows:
A kind of high-efficiency environment friendly charcoal, it is compressing after raw mill, then prepared by high temperature carbonization；Described composition of raw materials
As follows, in parts by mass, 100 parts of single variety coal, Colophonium 1-30 part, binding agent 1-30 part, carbonate or bicarbonate 1-30
Part.
Preferred as technique scheme, described high-efficiency environment friendly charcoal is block, and compared with standard coal, its calorific value improves
10～50%, afterburnt waste residue reduces 5～15 times.
Preferred as technique scheme, measures according to GB/T2006-2008, crushing strength M40 of high-efficiency environment friendly charcoal
>=80, wear-resisting intensity M10≤7.5.
Preferred as technique scheme, described single variety coal is anthracite, bituminous coal, rich coal, lean coal, bottle coal, brown
One in coal.
Preferred as technique scheme, has been also added with sulfate 1-30 part, humic acid or humic acid in described raw material
Salt 1-10 part.
Preferred as technique scheme, described composition of raw materials is as follows, in parts by mass, 100 parts of single variety coal, drip
Blue or green 10-15 part, binding agent 5-10 part, carbonate or bicarbonate 15-22 part.
Preferred as technique scheme, described composition of raw materials is as follows, in parts by mass, 100 parts of single variety coal, drip
Blue or green 10-15 part, binding agent 5-10 part, carbonate or bicarbonate 15-22 part, sulfate 5-15 part, humic acid or humate
5-10 part.
It is also another object of the present invention to provide the manufacture method of a kind of high-efficiency energy-saving carbon.
Its technical scheme is as follows:
The manufacture method of a kind of high-efficiency environment friendly charcoal, comprises the following steps:
(1) press the good raw material of formula group, be ground into powder；
(2) raw material pulverized being heated to 50～200 DEG C, then add water stirring, is pressed into middle product；
(3) centre product carrying out high temperature carbonization, control the highest carbonization temperature 800～1100 DEG C, the highest carbonization temperature keeps 1-
10h；(4) after coming out of the stove after carbonization, cooling.
Preferred as technique scheme, in step (1), grinds particle diameter 0.001～3mm；In step (2), by former
Material is placed in 50～200 DEG C of environment, keeps this temperature 0.5-10h so that it is physical and chemical reaction occurs；In step (3), at high temperature carbonization
During, at kiln internal spraying water.
Preferred as technique scheme, in step (4), the finished product will come out of the stove after high temperature carbonization, carry out instantaneous cooling.
Preferred as technique scheme, in step (1), is also placed in aqueous agar solution leaching by the raw material after grinding
Stain.
In aqueous agar solution after dipping, raw material can preferably be shaped making by one；Two can be by carbonization process
Raw material preferably molding, and make the M10 value of final coke and M40 value comparison with standard have bigger raising.
Preferred as technique scheme, the concentration of described aqueous agar solution is 0.05-0.5wt%, and dip time is
10-30min。
The method have the advantages that
1, ining contrast to moulded coal of the prior art, the present invention is a kind of charcoal, and it has good heat stability, under fired state
Burning will not be occurred to dissipate, burn the problems such as broken；
2, the present invention is through the process of carbonization, is substantially removed the material that can produce pollution gas after the burnings such as the sulfur-bearing thing in coal
Go, therefore, use the advantage that this charcoal has environmental protection as fuel；
3, the present invention also has efficient advantage, generally 1 hour 0.3 ton of coal of consumption of the boiler of two tons, 1 ton of chain furnace board pot
Stove consumption coal (three class bituminous coal) 170kg/t, standardization coal about 108kg；And after carbonization, 1 hour 0.18 ton of coal of consumption of the boiler of two tons, 1
Ton chain furnace board boiler consumption coal (three class bituminous coal) 102kg/t, standardization coal about 64.8kg；
4, the difficult point of the present invention is the carbonization of single variety coal, in prior art, can make the coal of charcoal be Mixture Density Networks or
Coking coal, and cannot be by anthracite carbonization, such as coking coal, rich coal, bottle coal, bituminous coal, brown coal are mixed together coking becomes coke,
And 1 ton of Mixture Density Networks can only produce the coke of 0.7 ton；And any one single variety coal carbonization can especially be selected by the present invention
During anthracite carbonization, 1 ton of anthracite can produce the coke of 0.8 ton；
5, the charcoal obtained manufactured by the present invention is bulk, and compared with standard coal, its calorific value improves 10～50%, and waste residue reduces 5～15
Times, and measure according to GB/T2006-2008, crushing strength M40 >=80 of high-efficiency environment friendly charcoal, wear-resisting intensity M10≤7.5.
6, the charcoal obtained manufactured by the present invention is bulk, also has and thermally-stabilised is more than 96 DEG C, and DT is more than 1325 DEG C, and ST is more than
1355 DEG C, FT is more than 1395 DEG C, and all of fugitive constituent of carbonization is less than 1.9.
Detailed description of the invention
This detailed description of the invention is only explanation of the invention, is not limitation of the present invention, people in the art
Any change that member is made after the description having read the present invention, as long as in the range of claims, all will be subject to
The protection of Patent Law.
Embodiment one
A kind of environment-friendly high-efficiency charcoal, is prepared from by the raw material of following weight portion: 100 parts of single variety coal, Colophonium 11 parts, solid are viscous
9 parts of mixture, soda 15 parts, 13 parts of Gypsum Fibrosum and sodium humate 10 parts.
Concrete preparation method is as follows:
Raw material is prepared according to the above ratio mixing, it is carried out grinding processing；It is preheated to 130 DEG C, adds water, be pressed into bulk, send
Enter retort and carry out carbonization, 900 DEG C of carbonization time 4h of carbonization temperature, and in carbonization process, spray atomized water, make carbonization process
The flue gas of middle generation is the most yellow；Come out of the stove, put in water after coming out of the stove and cool down rapidly.
Through the charcoal that above-mentioned process prepares, eliminate most harmful substance, the sulfur dioxide produced after reducing burning
Deng.
Embodiment two
A kind of environment-friendly high-efficiency charcoal, is prepared from by the raw material of following weight portion: 100 parts of single variety coal, Colophonium 11 parts, solid are viscous
9 parts of mixture, soda 15 parts, 13 parts of Gypsum Fibrosum and sodium humate 10 parts.
Concrete preparation method is as follows:
Raw material is prepared according to the above ratio mixing, it is carried out grinding processing；It is preheated to 130 DEG C, adds water, be pressed into bulk, send
Enter retort and carry out carbonization, 1100 DEG C of carbonization time 8h of carbonization temperature, and in carbonization process, spray atomized water, make conversation on course
The flue gas of middle generation is the most yellow；Come out of the stove, put in water after coming out of the stove and cool down rapidly.
Through the charcoal that above-mentioned process prepares, eliminate most harmful substance, the sulfur dioxide produced after reducing burning
Deng.
Compared with embodiment one, use identical formula, extend carbonization time, improve carbonization temperature, can be preferably
Remove the harmful substance in coal, reduce the discharge of pollutant.
Embodiment three
A kind of environment-friendly high-efficiency charcoal, is prepared from by the raw material of following weight portion: 100 parts of single variety coal, Colophonium 12 parts, solid are viscous
8 parts of mixture, soda 21 parts, 10 parts of Gypsum Fibrosum and sodium humate 10 parts.
Concrete preparation method is as follows:
Raw material is prepared according to the above ratio mixing, it is carried out grinding processing；It is preheated to 130 DEG C, adds water, be pressed into bulk, send
Enter retort and carry out carbonization, 900 DEG C of carbonization time 4h of carbonization temperature, and in carbonization process, spray atomized water, make carbonization process
The flue gas of middle generation is the most yellow；Come out of the stove, put in water after coming out of the stove and cool down rapidly.
Compared with embodiment one, the method for this embodiment is identical；The proportion of soda is relatively big, the titanium dioxide produced after burning
Sulfur, nitrogen oxides discharge capacity less.
Embodiment four
A kind of environment-friendly high-efficiency charcoal, is prepared from by the raw material of following weight portion: 100 parts of single variety coal, Colophonium 11 parts, solid are viscous
9 parts of mixture, soda 15 parts, 13 parts of Gypsum Fibrosum and sodium humate 10 parts.
Concrete preparation method is as follows:
Raw material is prepared according to the above ratio mixing, it is carried out grinding processing, then raw material is loaded the string bag, under room temperature
Take out after the aqueous agar solution of 0.1wt% soaks 15min, be preheated to 130 DEG C, add water, be pressed into bulk, send into retort and enter
Row carbonization, 800 DEG C of carbonization time 3h of carbonization temperature, and in carbonization process, spray atomized water, make the cigarette produced in carbonization process
Gas is the most yellow；Come out of the stove, put in water after coming out of the stove and cool down rapidly.
Compared with embodiment one, the formula of this embodiment is identical；Through agar soak after, can with less carbonization time,
Lower carbonization temperature, reaches the most same treatment effect, more efficiently.
Embodiment five
A kind of environment-friendly high-efficiency charcoal, is prepared from by the raw material of following weight portion: 100 parts of single variety coal, Colophonium 11 parts, solid are viscous
9 parts of mixture, soda 15 parts, 13 parts of Gypsum Fibrosum and sodium humate 10 parts.
Concrete preparation method is as follows:
Raw material is prepared according to the above ratio mixing, it is carried out grinding processing, be preheated to 130 DEG C, maintain this temperature 5h, then
Add water, be pressed into bulk, send into retort and carry out carbonization, 800 DEG C of carbonization time 3h of carbonization temperature, and spray in carbonization process
Atomized water, makes the flue gas produced in carbonization process the most yellow；Come out of the stove, put in water after coming out of the stove and cool down rapidly.
Compared with embodiment one, the formula of this embodiment is identical；After the pre-heat treatment of 5h, can reach more preferably to be located in
Reason effect.
Claims (10)
1. a high-efficiency environment friendly charcoal, it is characterised in that be compressing after raw mill, then prepared by high temperature carbonization；
Described composition of raw materials is as follows, in parts by mass, 100 parts of single variety coal, Colophonium 1-30 part, binding agent 1-30 part, carbonate or
Bicarbonate 1-30 part.
A kind of high-efficiency environment friendly charcoal the most according to claim 1, it is characterised in that described high-efficiency environment friendly charcoal is block, with
Standard coal is compared, and its calorific value improves 10～50%, and afterburnt waste residue reduces 5～15 times.
A kind of high-efficiency environment friendly charcoal the most according to claim 1, it is characterised in that measure according to GB/T2006-2008, efficiently
Crushing strength M40 >=80 of environment-friendlycharcoal charcoal, wear-resisting intensity M10≤7.5.
A kind of high-efficiency environment friendly charcoal the most according to claim 1, it is characterised in that described single variety coal is anthracite, cigarette
One in coal, rich coal, lean coal, bottle coal, brown coal.
A kind of high-efficiency environment friendly charcoal the most according to claim 1, it is characterised in that be also added with sulfate 1-in described raw material
30 parts, humic acid or humate 1-10 part.
A kind of high-efficiency environment friendly charcoal the most according to claim 4, it is characterised in that described composition of raw materials is as follows, by mass parts
Meter, 100 parts of single variety coal, Colophonium 10-15 part, binding agent 5-10 part, carbonate or bicarbonate 15-22 part.
A kind of high-efficiency environment friendly charcoal the most according to claim 4, it is characterised in that described composition of raw materials is as follows, by mass parts
Meter, 100 parts of single variety coal, Colophonium 10-15 part, binding agent 5-10 part, carbonate or bicarbonate 15-22 part, sulfate 5-
15 parts, humic acid or humate 5-10 part.
8., according to the manufacture method of a kind of high-efficiency environment friendly charcoal described in claim 1-7 any one, comprise the following steps:
(1) press the good raw material of formula group, be ground into powder；
(2) raw material pulverized being heated to 50～200 DEG C, then add water stirring, is pressed into middle product；
(3) centre product carrying out high temperature carbonization, control the highest carbonization temperature 800～1100 DEG C, the highest carbonization temperature keeps 1-
10h；(4) after coming out of the stove after carbonization, cooling.
The manufacture method of a kind of high-efficiency environment friendly charcoal the most according to claim 8, it is characterised in that in step (1), abrasive grains
Footpath is 0.001～3mm；In step (2), raw material is placed in 50～200 DEG C of environment, keeps this temperature 0.5-10h so that it is occur
Physical and chemical reaction；In step (3), during high temperature carbonization, at kiln internal spraying water.
The manufacture method of a kind of high-efficiency environment friendly charcoal the most according to claim 8, it is characterised in that in step (4), by height
The finished product come out of the stove after temperature carbonization, carries out instantaneous cooling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129847A (en) * | 2017-07-05 | 2017-09-05 | 李永庆 | A kind of environment-friendly type charcoal for roasting and preparation method thereof |
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| CN103992807A (en) * | 2014-06-07 | 2014-08-20 | 太原理工大学 | Method for producing carbonized coal/coke for gasification by large-scale tamping coal cake on coke oven |
| CN105316057A (en) * | 2015-10-28 | 2016-02-10 | 广西桂晟新能源科技有限公司 | Biomass coal briquette by use of anthracite coal and carbonized biomass fuel as base materials |
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| US4528281A (en) * | 1983-03-16 | 1985-07-09 | Calgon Carbon Corporation | Carbon molecular sieves and a process for their preparation and use |
| CN101121515A (en) * | 2007-08-10 | 2008-02-13 | 邹炎 | Method for preparing special-purpose active carbon for removing mercury and products thereof |
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| CN101486936A (en) * | 2009-02-25 | 2009-07-22 | 朱贞丽 | Method for preparing clean molded coal from pulverized coal |
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Application publication date: 20161026 |