CN107325853A - For the composition for preparing clean type coal and the method for preparing clean type coal and clean type coal - Google Patents
For the composition for preparing clean type coal and the method for preparing clean type coal and clean type coal Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0272—Silicon containing compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/04—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
- C10L2290/148—Injection, e.g. in a reactor or a fuel stream during fuel production of steam
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/24—Mixing, stirring of fuel components
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/28—Cutting, disintegrating, shredding or grinding
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/32—Molding or moulds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
This disclosure relates to which a kind of be used to prepare the composition of clean type coal and prepare the method and clean type coal of clean type coal, the composition includes semi-coke and auxiliary agent, on the basis of the semi-coke of 100 parts by weight, the content of the auxiliary agent is 1 10 parts by weight, the fixation carbon content of the semi-coke is 68 73 weight %, and particle diameter is 20 50 mesh.The stability and intensity of the clean type coal are good, smoke-free and tasteless in burning, can be used as food and drink, the clean fuel warmed oneself.
Description
Technical field
This disclosure relates to civilian clean type coal field, in particular it relates to it is a kind of be used to preparing the composition of clean type coal with
And prepare the method and clean type coal of clean type coal.
Background technology
Semi-coke is the product after raw coal pyrolysis (destructive distillation), and due to raw coal, pernicious gas has largely discharged in low temperature pyrogenation,
Contained coal gas and coal tar are extracted substantially, therefore semi-coke belongs to the high-grade fuel of clean environment firendly.Semi-coke has fixed carbon height, changed
Learn activity height, containing ash content is low, aluminium is low, sulphur is low, the low feature of phosphorus, be widely used in the industries such as chemical industry, smelting, gas making.
The a large amount of lignite resources of China need to be developed, higher main based on block of semi-coke utility ratio, semi-coke end due to
Granularity is small to be not used in industrial production；Stack simultaneously and load and unload airborne dust in transport and seriously, do not meet environmental requirement, therefore semi-coke
Last recycling turns into urgent problem to be solved.
Widelyd popularize in country under the situation using Filter Tuber For Clean Coal, Ramsbottom carbon clean-type coal is a dark horse, complete by excellent properties
Meet Beijing-tianjin-hebei Region Filter Tuber For Clean Coal standard entirely.However, itself particle diameter of semi-coke end is small, light specific gravity, micropore is more, and specific surface area is big, by force
Degree is poor, easily crushes, and soap-free emulsion polymeization crosslinking basis, deep processing acquires a certain degree of difficulty；The raw material of semi-coke is because of place of production coal difference, semi-coke simultaneously
Last property is made a variation therewith, so using same processing method, the semi-coke end of Coal rank institute output can not be solved simultaneously.
The content of the invention
The purpose of the disclosure is to provide a kind of for preparing the composition of clean type coal and preparing the method for clean type coal
And clean type coal.The stability and intensity of the clean type coal are good, smoke-free and tasteless in burning, can be used as food and drink, the cleaning of heating
Fuel.
To achieve these goals, disclosure first aspect：A kind of composition for being used to prepare clean type coal is provided, it is described
Composition includes semi-coke and auxiliary agent, on the basis of the semi-coke of 100 parts by weight, and the content of the auxiliary agent is 1-10 parts by weight,
The fixation carbon content of the semi-coke is 68-73 weight, and particle diameter is 20-50 mesh.
Alternatively, on the basis of the semi-coke of 100 parts by weight, the content of the auxiliary agent is 2-5 parts by weight.
Alternatively, the air-dried moisture content of the semi-coke is 2.3-3.7 weight %, and As-received content of ashes is 8.7-
10.9 weight %, volatile matter content is 8-11.6 weight %, and total sulphur content is 0.26-0.4 weight %, and caloric value is 6000-
6300cal/g。
Alternatively, the auxiliary agent is selected from least one of binding agent, sulphur-fixing agent and combustion adjuvant.
Alternatively, the binding agent be selected from sodium humate, calcium bentonite, redispersible latex powder, cornstarch,
At least one of carboxymethyl cellulose and sodium lignin sulfonate, the sulphur-fixing agent are selected from calcium oxide, calcium chloride and calcirm-fluoride
At least one of, the combustion adjuvant is selected from least one of potassium chlorate, sodium chlorate, magnesium chloride and potassium nitrate.
Alternatively, the auxiliary agent includes sodium humate, calcium bentonite, redispersible latex powder, cornstarch, carboxylic first
Base cellulose and sodium lignin sulfonate, the sodium humate, calcium bentonite, redispersible latex powder, cornstarch, carboxylic first
The weight ratio of base cellulose and sodium lignin sulfonate is 1：(1-5)：(0.05-0.1)：(0.2-2)：(0.5-1.5)：(0.2-
0.5)。
Alternatively, the fineness of the sodium humate is 100-200 mesh, and the fineness of the calcium bentonite is 100-150 mesh.
Disclosure second aspect：The side that a kind of composition described in use disclosure first aspect prepares clean type coal is provided
Method, this method includes：
A, the semi-coke, the auxiliary agent mixed with water, obtain mixed material, the consumption of the water is described to cause
The water content of mixed material is 5-20 weight %；
B, the mixed material obtained in step a is subjected to extrusion forming, obtains clean type coal.
Alternatively, this method also includes：It is dried again after the mixed material is carried out into extrusion forming, obtains institute
State clean type coal.
The disclosure third aspect：A kind of clean type coal is provided, the clean type coal is as the side described in disclosure second aspect
What method was prepared.
By above-mentioned technical proposal, the disclosure is optimized to semi-coke and used, and expands the semi-coke with special nature
Use scope, improve its market value.The preparation method for the clean type coal that the disclosure is provided is simple, and what is used helps
Agent wide material sources, cheap, addition are few, and the clean type coal ignition point prepared is low, heat endurance, impact resistance, cold
Compressive Strength and calorific intensity are good, and the intensity of a fire is vigorous during burning, easily lights, smoke-free and tasteless in burning, can be used as food and drink, the cleaning of heating
Fuel, reduces the air pollution problems inherent caused during civil coal use.
Other feature and advantage of the disclosure will be described in detail in subsequent embodiment part.
Embodiment
Embodiment of this disclosure is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explained the disclosure, is not limited to the disclosure.
Disclosure first aspect：There is provided it is a kind of be used to preparing the composition of clean type coal, the composition include semi-coke and
Auxiliary agent, on the basis of the semi-coke of 100 parts by weight, the content of the auxiliary agent is 1-10 parts by weight, the fixed carbon of the semi-coke
Content is 68-73 weight %, and particle diameter is 20-50 mesh.
Semi-coke is also known as semicoke, coke powder, is that the smart coal cinder of high-quality sieve dwarf abounded with using refreshing mansion, Yulin, Dongsheng coalfield etc. is fired
, with ratio resistance is high, chemism is high, containing the characteristic that ash is low, aluminium is low, sulphur is low, phosphorus is low, can be widely used in electricity
The production of the products such as stone, ferroalloy, ferrosilicon, carborundum, as a kind of irreplaceable carbon material.But because of place of production coal not
Together, the property of semi-coke makes a variation therewith.Semi-coke described in the disclosure originates from being carried through coal classification for Hami area for special
The semi-coke that carbon content is not less than 60 weight % is fixed after matter.Further, the fixation carbon content of the semi-coke can be 50-75 weights
Measure %, preferably 68-73 weight %；Air-dried moisture content can be 1-6 weight %, preferably 2.3-3.7 weight %；Receive
Base content of ashes can be 8-27 weight %, preferably 8.7-10.9 weight %；Volatile matter content can be 7-20 weight %, excellent
Elect 8-11.6 weight % as；Total sulphur content can be 0.2-0.5 weight %, preferably 0.26-0.4 weight %；Caloric value can be with
For 4000-7000 weight %, preferably 6000-6300cal/g.Semi-coke with above-mentioned property is optimized the disclosure makes
With expanding the use scope of the semi-coke with special nature, improve its market value.
According to the disclosure, in order to further optimize the performance of clean type coal, on the basis of the semi-coke of 100 parts by weight,
The content of the auxiliary agent can be 2-5 parts by weight.
According to the disclosure, the auxiliary agent can be selected from least one of binding agent, sulphur-fixing agent and combustion adjuvant.It is described viscous
Knot agent can improve cohesive between raw material to be various, blocking beneficial to being molded, and ensure that moulded coal has specific shape after shaping
The material of shape and performance, for example, can be selected from sodium humate, calcium bentonite, redispersible latex powder, cornstarch, carboxylic
At least one of methylcellulose and sodium lignin sulfonate.The sulphur-fixing agent be the various free sulphurs that can be removed in raw material or
The material of sulphur compound, for example, can be selected from least one of calcium oxide, calcium chloride and calcirm-fluoride.The combustion adjuvant is each
Kind can improve the material of Combustion of Mould Coal efficiency, for example can be in potassium chlorate, sodium chlorate, magnesium chloride and potassium nitrate extremely
Few one kind.Above-mentioned auxiliary agent is available commercially.Auxiliary agent wide material sources that the disclosure is used, cheap, addition are few, beneficial
In the processing and combustibility that improve moulded coal.
A kind of preferred embodiment according to the disclosure, the auxiliary agent includes sodium humate, calcium bentonite, redispersible
Property latex powder, cornstarch, carboxymethyl cellulose and sodium lignin sulfonate, it is the sodium humate, calcium bentonite, redispersible
Property latex powder, cornstarch, the weight ratio of carboxymethyl cellulose and sodium lignin sulfonate be 1：(1-5)：(0.05-0.1)：
(0.2-2)：(0.5-1.5)：(0.2-0.5).It is more beneficial for improving using the auxiliary agent species and proportioning of above-mentioned preferred embodiment
The performance of moulded coal, wherein, sodium humate can improve the heat endurance and calorific intensity of moulded coal, moreover it is possible to effectively suppress micro- inside moulded coal
The generation and development of crackle, improve the shock resistance of moulded coal, and can reduce the ignition point of moulded coal, are that moulded coal is easy to light
And the intensity of a fire is vigorous during burning, smoke-free and tasteless in burning.In the preferred embodiment, it is further preferred that the sodium humate
Fineness can be 100-200 mesh, the fineness of the calcium bentonite can be 100-150 mesh.
Disclosure second aspect：Improve the side that the composition described in a kind of use disclosure first aspect prepares clean type coal
Method, this method includes：
A, the semi-coke, the auxiliary agent mixed with water, obtain mixed material, the consumption of the water is described to cause
The water content of mixed material is 5-20 weight %；
B, the mixed material obtained in step a is subjected to extrusion forming, obtains clean type coal.
According to disclosure second aspect, this method can also include, and semi-coke is pre-processed, and obtain particle diameter for 20-50
Purpose semi-coke particles, then carry out step a operation again.The pretreatment includes crushing semi-coke, the broken side
What method can be well known to those skilled in the art, the disclosure does not do special limitation.
According to disclosure second aspect, the mixing in step a can be carried out in the conventional mixing apparatus of this area,
For example, first can mix the semi-coke in dry powder mixing device in proportion with auxiliary agent, then the material of gained is sent into again
There is the biaxial rneader of lid on top；Stirring motor spindle has the interface for being passed through high-temperature vapor, it would be desirable to which the vapor of amount is passed through
Mixer is simultaneously sufficiently mixed with material, both adds moisture content of material, while semi-coke is fully cured at high temperature with auxiliary agent,
The mixed material is finally can obtain, the form of the mixed material does not dissipate to hold.It is described mixed
The water content of material can be calculated by weighing.
According to disclosure second aspect, in step b, what the extrusion forming was well known to those skilled in the art, for example
Can be that, to roller extrusion forming, its condition can carry out the normal condition of extrusion forming for this area, such as crowded to roller when carrying out
, can be every square centimeter for 100-200 tons to roller line pressure when molded.Moulded coal wet bulb is typically resulted in after extrusion forming,
Therefore, this method can also include：It is dried again after the mixed material is carried out into extrusion forming, obtains the cleaning
Moulded coal.The drying can cause the moisture of the clean type coal prepared in below 2 weight %.The condition of the drying
Can be conventional for this area.
The disclosure third aspect：A kind of clean type coal is provided, the clean type coal is as the side described in disclosure second aspect
What method was prepared.
The preparation method for the clean type coal that the disclosure is provided is simple, the auxiliary agent wide material sources that are used, cheap, addition
Amount is few, and the clean type coal ignition point prepared is low, and heat endurance, impact resistance, cold pressing strength and calorific intensity are good, fiery during burning
Gesture is vigorous, easily lights, smoke-free and tasteless in burning, can reduce civil coal as food and drink, the clean fuel warmed oneself and use process
In the air pollution problems inherent that causes.
The disclosure is further illustrated by the following examples, but does not therefore limit the disclosure.
In embodiment and comparative example, the fixation carbon content of semi-coke, As-received content of ashes, volatile matter content are marked according to country
Quasi- GB/T 212-2008 methods are measured, and air-dried moisture content is surveyed according to standard GB/T/T 211-2007 methods
Fixed, total sulphur content is measured according to standard GB/T/T 214-2008 methods, and caloric value is according to standard GB/T/T 213-
2008 methods are measured.
Chemicals used in embodiment is commercially available.
Embodiment 1
The fixation carbon content for the semi-coke that the present embodiment is used is 69.60 weight %, and air-dried moisture content is 2.36 weights
% is measured, As-received content of ashes is 8.76 weight %, and volatile matter content is 9.65 weight %, and total sulphur content is 0.26 weight %,
Caloric value is 6083cal/g.
The above-mentioned semi-cokes of 10kg are broken for after the semi-coke particles of 30 mesh to send into dry powder mixing device, put into the device
100g sodium humates (fineness is 100 mesh), 200g calcium bentonites (fineness is 100 mesh), 5g redispersible latex powders, 100g
Cornstarch, 50g carboxymethyl celluloses, 20g sodium lignin sulfonates, 2g sulphur-fixing agents calcium oxide and 2g combustion adjuvant sodium chlorate, will be upper
State after material is mixed 10 minutes and send into Double shaft stirring device, the high-temperature water that requirement is passed through into the Double shaft stirring device steams
Gas, is stirred 20 minutes, obtains the mixed material that water content is 10 weight %, and the material, which is held, not to be dissipated, and is placed on afterwards
In roller briquetting machine, 150 tons it is every square centimeter to roller line pressure under carry out extrusion forming, then by obtained moulded coal wet bulb
Dried at 120 DEG C to moisture in below 2 weight %, obtain clean type coal manufactured in the present embodiment.
Embodiment 2
By 10kg semi-cokes same as Example 1 be broken for after the semi-coke particles of 30 mesh send into dry powder mixing device, to
40g sodium humates (fineness is 100 mesh), 120g calcium bentonites (fineness is 100 mesh), 3.2g are put into the device redispersible
Property latex powder, 80g cornstarch, 40g carboxymethyl celluloses, 16g sodium lignin sulfonates, 4g sulphur-fixing agents calcium chloride and 4g combustion adjuvants
Potassium chlorate, sends into Double shaft stirring device after above-mentioned material is mixed 10 minutes, requirement is passed through into the Double shaft stirring device
High-temperature vapor, stir 20 minutes, obtain water content be 10 weight % mixed material, the material hold does not dissipate, it
After be placed in roller briquetting machine, 150 tons it is every square centimeter to roller line pressure under carry out extrusion forming, then will obtain
Moulded coal wet bulb dried at 120 DEG C to moisture in below 2 weight %, obtain clean type coal manufactured in the present embodiment.
Embodiment 3
By 10kg semi-cokes same as Example 1 be broken for after the semi-coke particles of 30 mesh send into dry powder mixing device, to
200g sodium humates (fineness is 100 mesh), 400g calcium bentonites (fineness is 200 mesh), 10g are put into the device redispersible
Property latex powder, 200g cornstarch, 100g carboxymethyl celluloses, 40g sodium lignin sulfonates, 4g sulphur-fixing agents calcium oxide and 4g are combustion-supporting
Agent sodium chlorate, sends into Double shaft stirring device after above-mentioned material is mixed 10 minutes, needs is passed through into the Double shaft stirring device
The high-temperature vapor of amount, is stirred 20 minutes, obtains the mixed material that water content is 10 weight %, and the material, which is held, not to be dissipated,
Be placed on afterwards in roller briquetting machine, 150 tons it is every square centimeter to roller line pressure under carry out extrusion forming, then will
To moulded coal wet bulb dried at 120 DEG C to moisture in below 2 weight %, obtain clean type coal manufactured in the present embodiment.
Embodiment 4
By 10kg semi-cokes same as Example 1 be broken for after the semi-coke particles of 30 mesh send into dry powder mixing device, to
22g sodium humates (fineness is 100 mesh), 44g calcium bentonites (fineness is 100 mesh), 1.1g are put into the device redispersible
Property latex powder, 21g cornstarch, 11g carboxymethyl celluloses, 4.4g sodium lignin sulfonates, 0.5g sulphur-fixing agents calcium oxide and 0.5g
Combustion adjuvant sodium chlorate, sends into Double shaft stirring device after above-mentioned material is mixed 10 minutes, is passed through into the Double shaft stirring device
The high-temperature vapor of requirement, is stirred 20 minutes, obtains the mixed material that water content is 10 weight %, and the material is held not
Dissipate, be placed on afterwards in roller briquetting machine, 150 tons it is every square centimeter to roller line pressure under carry out extrusion forming, then
Obtained moulded coal wet bulb is dried to moisture at 120 DEG C in below 2 weight %, clean type manufactured in the present embodiment is obtained
Coal.
Embodiment 5
Method according to embodiment 1 prepares clean type coal, and difference is, the fixation carbon content for the semi-coke that the present embodiment is used
For 58 weight %, air-dried moisture content is 5 weight %, and As-received content of ashes is 19 weight %, and volatile matter content is 13 weights
% is measured, total sulphur content is 0.5 weight %, and caloric value is 5900cal/g.
Embodiment 6
Method according to embodiment 1 prepares clean type coal, and difference is, the fineness of sodium humate used in the present embodiment
For 300 mesh, the fineness of calcium bentonite is 200 mesh.
Embodiment 7
By 10kg semi-cokes same as Example 1 be broken for after the semi-coke particles of 30 mesh send into dry powder mixing device, to
100g sodium humates (fineness is 100 mesh), 80g calcium bentonites (fineness is 100 mesh), 12g are put into the device redispersible
Property latex powder, 10g cornstarch, 200g carboxymethyl celluloses, 80g sodium lignin sulfonates, 2g sulphur-fixing agents calcium oxide and 2g are combustion-supporting
Agent sodium chlorate, sends into Double shaft stirring device after above-mentioned material is mixed 10 minutes, needs is passed through into the Double shaft stirring device
The high-temperature vapor of amount, is stirred 20 minutes, obtains the mixed material that water content is 10 weight %, and the material, which is held, not to be dissipated,
Be placed on afterwards in roller briquetting machine, 150 tons it is every square centimeter to roller line pressure under carry out extrusion forming, then will
To moulded coal wet bulb dried at 120 DEG C to moisture in below 2 weight %, obtain clean type coal manufactured in the present embodiment.
Comparative example 1
Difference with embodiment 1 is that the fixation carbon content for the semi-coke that this comparative example is used is 50 weight %, empty butt
Moisture is 5 weight %, and As-received content of ashes is 18 weight %, and volatile matter content is 12 weight %, and total sulphur content is 0.4
Weight %, caloric value is 4700cal/g.
Testing example
Combustion testing, embodiment 1-7 clean type coal are carried out to the clean type coal prepared by embodiment 1-7 and comparative example 1
In burning, the intensity of a fire is vigorous, easily lights, smoke-free and tasteless in burning, and the coal burning time prepared by comparative example 1 is long, and burning is tired
It is difficult.
According to the cold pressing strength of the clean type coal prepared by the method testing example 1-7 of MT/T748-007 and comparative example 1
And calorific intensity, the results are shown in Table 1.
Table 1
As can be seen from result of Table 1, the clean type coal prepared using disclosure provider's method has higher cold pressing strong
Degree and calorific intensity, and the intensity of a fire is vigorous during burning, easily lights, smoke-free and tasteless in burning, can be fired as food and drink, the clean of heating
Material.Especially on the basis of the semi-coke by 100 parts by weight, when the content of the auxiliary agent is 2-5 parts by weight, can further it carry
The cold pressing strength and calorific intensity of clean type coal prepared by height.
The preferred embodiment of the disclosure described in detail above, still, the disclosure are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the disclosure, a variety of simple variants can be carried out with technical scheme of this disclosure, this
A little simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of composition for being used to prepare clean type coal, it is characterised in that the composition includes semi-coke and auxiliary agent, with 100
On the basis of the semi-coke of parts by weight, the content of the auxiliary agent is 1-10 parts by weight, and the fixation carbon content of the semi-coke is 68-73
Weight %, particle diameter is 20-50 mesh.
2. composition according to claim 1, wherein, on the basis of the semi-coke of 100 parts by weight, the auxiliary agent contains
Measure as 2-5 parts by weight.
3. composition according to claim 1 or 2, wherein, the air-dried moisture content of the semi-coke is 2.3-3.7 weights
% is measured, As-received content of ashes is 8.7-10.9 weight %, and volatile matter content is 8-11.6 weight %, and total sulphur content is 0.26-
0.4 weight %, caloric value is 6000-6300cal/g.
4. composition according to claim 1 or 2, wherein, the auxiliary agent is in binding agent, sulphur-fixing agent and combustion adjuvant
At least one.
5. composition according to claim 4, wherein, the binding agent be selected from sodium humate, calcium bentonite, can be again
At least one of dispersed latex powder, cornstarch, carboxymethyl cellulose and sodium lignin sulfonate, the sulphur-fixing agent be selected from
At least one of calcium oxide, calcium chloride and calcirm-fluoride, the combustion adjuvant are selected from potassium chlorate, sodium chlorate, magnesium chloride and nitric acid
At least one of potassium.
6. composition according to claim 4, wherein, the auxiliary agent includes sodium humate, calcium bentonite, redispersible
Property latex powder, cornstarch, carboxymethyl cellulose and sodium lignin sulfonate, it is the sodium humate, calcium bentonite, redispersible
Property latex powder, cornstarch, the weight ratio of carboxymethyl cellulose and sodium lignin sulfonate be 1：(1-5)：(0.05-0.1)：
(0.2-2)：(0.5-1.5)：(0.2-0.5).
7. composition according to claim 6, wherein, the fineness of the sodium humate is 100-200 mesh, described calcareous swollen
The fineness of profit soil is 100-150 mesh.
8. the method that the composition in a kind of use claim 1-7 described in any one prepares clean type coal, it is characterised in that
This method includes：
A, the semi-coke, the auxiliary agent mixed with water, obtain mixed material, the consumption of the water is causes the mixing
The water content of material afterwards is 5-20 weight %；
B, the mixed material obtained in step a is subjected to extrusion forming, obtains clean type coal.
9. method according to claim 8, wherein, this method also includes：The mixed material is squeezed into
It is dried again after type, obtains the clean type coal.
10. a kind of clean type coal, it is characterised in that the clean type coal is prepared as the method described in claim 8 or 9
's.
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