CN105950245A - Compound binder for lignite molding and molded coal preparation method - Google Patents
Compound binder for lignite molding and molded coal preparation method Download PDFInfo
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- CN105950245A CN105950245A CN201610306380.0A CN201610306380A CN105950245A CN 105950245 A CN105950245 A CN 105950245A CN 201610306380 A CN201610306380 A CN 201610306380A CN 105950245 A CN105950245 A CN 105950245A
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- coal
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- brown coal
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Classifications
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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
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
- C10L5/143—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with lignin-containing products
-
- 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
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
-
- 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
- C10L2290/08—Drying or removing water
-
- 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
-
- 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
- C10L2290/30—Pressing, compressing or compacting
-
- 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
Abstract
The invention provides a compound binder for lignite molding. The compound binder comprises two or more components of sodium humate, coal tar pitch and lignin. The compound binder takes a low-cost organic binder as a main component, a few binder is used, a preparation method is simple, components easily producing ash are not used, and the problems that a binder in the prior art contains much ash, the use amount is large, a preparation method is complicated and the cost is higher are solved. The compound binder further enables prepared molded coal to have higher falling strength, cold compressive strength and heat stability on the basis of solving the problems and has broader industrial application prospect.
Description
Technical field
The present invention relates to the preparation field of brown coal moulded coal, be specifically related to a kind of Moulding Process of Brown Coal compound binding agent
And moulded coal preparation method.
Background technology
China's lignite resource enrich, and have distribution concentrate, bury shallow, be prone to the features such as exploitation.China
Existing explored brown coal reserves reaches 130,300,000,000 tons, accounts for the 13% of whole nation coal gross reserves.Concentrate and divide
Cloth is in east Inner Mongolia, Yunnan and three provinces in the northeast of China.The brown coal being wherein distributed in east Inner Mongolia account for the whole nation
More than the 70% of brown coal total amount.To lignite resource efficient, make full use of, be not only able to alleviate China
Energy supply quagmire, and the development of national economy can be driven.
Brown coal are the coals that degree of coalification is minimum, have moisture big, and density is less, no adhesion, send out
The characteristics such as heat is low, and coal ash fusion temperature is the lowest, and the sodium humate containing varying number, oxygen content in coal
High.Chemical reactivity is strong, poor heat stability, broken serious during lump coal heating.Deposit easy wind in air
Change in bulk even powder rotten, broken.Recycling after brown coal upgrading is reduction brown coal energy consumption, carries
The effective way of high utilization ratio, wherein drying and dehydrating upgrading is the Main Means of brown coal upgrading.But
In dehydration, the effect due to self stress and applied mechanical power can produce a large amount of coal dust, causes it to add
Work utilizes difficulty.And outer adding additives the brown coal after drying and upgrading are made moulded coal is a kind of high-efficiency cleaning
Treating method, both can improve the utilization rate of resource, reduce environmental pollution, it is also possible to improve enterprise
Economic benefit and social benefit.
Up to now, the briquette binder of exploitation both at home and abroad has reached hundreds of, by the chemical of binding agent
Matter can be divided into organic, mineral-type, complex class three major types.The general adhesive property of organic binding agent is relatively
Good, there is after moulded coal dry solidification higher mechanical strength, but the Organic substance in organic binder bond exists
Easily decomposing and burning under high temperature, hot property is poor.Mineral-type binding agent is cheap, and source is wide, heat
State intensity is good, but itself can not burn, and makes the caloric value of moulded coal reduce, easily increases ash.Compound
Binding agent is generally divided into organic and inorganic, organic-organic and inorganic-inorganic three kinds of forms.Moulded coal practicality is glued
The Tentative of knot agent, should comprehensively utilize the characteristic of various material, learn from other's strong points to offset one's weaknesses, and explores with many
Plant material and be configured to the process conditions of compound binding agent.Require that cost is cheap, yield big, produce and answer
Pollution-free by process, and can guarantee that briquet quality index.
Currently available technology also discloses that some technical schemes about briquette binder, but is answering
All there is various defect, such as in:
Patent application CN101812343A (prior art one) disclose a kind of briquette binder and based on
The moulded coal preparation method of this binding agent, is processed into granularity less than the coal dust of 3mm by feed coal, then will be by
Sodium humate, bentonite, Kaolin, quartz sand, quick lime, sodium chloride, potassium permanganate, poly-third
Acrylamide is that the compound binding agent of raw material is crushed to granularity less than 1mm, and by binding agent by total siccative weight
The 5 of amount～15% add in coal dust, add water and are thoroughly mixed uniformly, being pressed on forcing press
Cylindrical briquette, then air-dry or drying is to moulded coal.
Quick lime in the compound binding agent that this technology uses, bentonite, Kaolin composition are more so that
The moulded coal caloric value of preparation reduces, moistureproof, water resistance is poor, and increases ash.
Patent application CN104357121A (prior art two) discloses the life of a kind of brown coal molding bonded
Product method, is crushed to below 3mm by brown coal block, adds by polyvinyl alcohol, carboxymethyl cellulose and water
Glass and the compound binding agent of water composition, after mix homogeneously, cold extrusion shaped in machine for producing coal bars, become
Coal rod after type is dried at 60～120 DEG C and obtains briquette prod to moisture ＜ 10%.
The consumption of binder that this technology uses is big, accounts for the 10%～35% of coal, and cost is high.
It is multiple that patent application CN103805302A (prior art three) discloses a kind of environment-friendly type industrial shaping coal
Closing binding agent and preparation method thereof, it is with sodium humate, Alumina, the Herba suadeae glaucae seedcake dregs of rice, water etc. as raw material,
First sodium humate, Alumina and plant phenols are mixed, during being progressively warming up to 350 DEG C, add catalysis
Agent, then it is separately added into furfuryl alcohol and atent solvent during being progressively cooled to 40 DEG C, and by regulation pH
Value and viscosity obtain product.
This technology complex steps in the technique prepare compound binding agent, need to carry out staged and rise gentleness fall
Temperature, energy consumption is big, and the production cycle is long.
Summary of the invention
The invention provides the Moulding Process of Brown Coal that a kind of technique is simple, with low cost, balling-up intensity is high to be combined
Binding agent and moulded coal preparation method thereof, it is adaptable to powdered Moulding Process of Brown Coal.When processing brown coal, typically
The method using drying and dehydrating upgrading, in drying and dehydrating grading process, can produce substantial amounts of brown coal powder,
This brown coal powder is not efficiently used, and causes substantial amounts of energy waste.Prior art is utilizing brown coal
During, generally using the binding agent added water, this makes the moulded coal poor heat stability produced.The present invention
Take full advantage of the brown coal powder produced in brown coal processing procedure, additionally use the binding agent without water,
The heat stability making the moulded coal after brown coal powder molding is greatly improved.
One aspect of the present invention, it is provided that a kind of Moulding Process of Brown Coal compound binding agent, wherein, including as follows
Two or more in composition: the sodium humate of 10～70 weight %, 10～60 coal drips of weight %
The blue or green lignin with 15～70 weight %.Above-described Moulding Process of Brown Coal compound binding agent, wherein, institute
State the microcrystalline Cellulose also including 0.1～10 weight % in composition.
Above-described Moulding Process of Brown Coal compound binding agent, wherein, the granularity of described each composition is less than 100
Mesh.
Above-described Moulding Process of Brown Coal compound binding agent, wherein, described composition includes: sodium humate
40～70 weight %, coal tar pitch 30～60 weight %.
Above-described Moulding Process of Brown Coal compound binding agent, wherein, described composition includes: sodium humate
40～70 weight %, lignin 30～60 weight %.
Above-described Moulding Process of Brown Coal compound binding agent, wherein, described composition includes: coal tar pitch 30～60
Weight %, lignin 40～70 weight %.
Above-described Moulding Process of Brown Coal compound binding agent, wherein, described composition includes: sodium humate
40～60 weight %, lignin 30～50 weight %, microcrystalline Cellulose 1～10 weight %.
Another aspect of the present invention, it is provided that a kind of compound binding agent prepares the method for moulded coal, wherein,
Comprise the steps: to dry to moisture less than 2 weight % brown coal drying, and crushing and screening, until brown
Coal particle size is less than 100 mesh；Again on the basis of the brown coal powder after crushing and screening, by mass percentage,
Interpolation 5～the compound binding agent described in any of the above of 15%, mix homogeneously, heating；After heating again
Mixed coal powder extruded, obtain moulded coal.
Above-described compound binding agent prepares the method for moulded coal, wherein, described heating steps be
1～3h is heated at 90～150 DEG C.
Above-described compound binding agent prepares the method for moulded coal, wherein, the Mixture Density Networks after described heating
Powder is extruded under the pressure of 15～20MPa.
The binding agent that the technology of the present invention uses is based on organic binder bond, and cohesiveness is good, it is not necessary to add water,
Save the step adding moisture in prior art of knowing clearly, such as prior art one and use quick lime, swelling
Soil, Kaolin make binding agent, it is necessary to add water and are sufficiently stirred for, thus can cause poor heat stability
Problem, the present invention avoids this problem very well, and does not use quick lime, bentonite, kaolinite
The compositions such as soil also and avoid the increase of ash.The technological process of the present invention relatively prior art three is simple
Controlled, save energy consumption, eliminate staged and rise the step of gentleness cooling, simplify operating procedure.
Heat stability i.e. calorific intensity described in the present invention, refers to whether it is prone to brokenly under high temperature action
Broken character, after affecting the many factors of moulded coal heat stability, such as briquette molding, moisture is higher, meeting
Reducing heat stability, after briquette molding, usual water content is 8%～10%, and the present invention uses and contains
The water yield is the brown coal of 2%, but the low Moulding Process of Brown Coal of moisture is difficult to, and fragility increases, and can affect cold strength,
Therefore the binding agent adding the present invention can adapt to low-moisture environment, simultaneously in the present invention, by type
The pressure ball pressure used when coal is compressing is little, only with the pressure of 15～20MPa, the most aobvious
Show that the caking property of the binding agent of the present invention is good, saved Financial cost.
Compound binding agent prepared by the present invention when high temperature by other component cross-link in brown coal to together, warp
Many synergism, significantly improve the fall strength of briquette of brown coal moulded coal, heat stability, are conducive to long
Way is transported and deposits.Inventor is found through experiments, and the binding agent of the present invention can make molding rear profile
The fall strength of briquette of coal may be up to 83%, and cold comprcssive strength may be up to 368N, and heat stability may be up to 82%.
Preparation technology of the present invention is simple, material source extensive, low cost, suits large area to popularize.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is described in more details, with
Just the advantage that better understood when the solution of the present invention and its various aspects.But, below describe
Detailed description of the invention and embodiment be only descriptive purpose rather than limitation of the present invention.
Experimental technique used in following embodiment if no special instructions, is conventional method.
Material used in following embodiment, reagent etc., if no special instructions, the most commercially
Obtain.
Following method is evaluation index and the method for testing of moulded coal in embodiment:
The test of drop resistant intensity: carrying out according to the method for GB/T 15459 regulation, assay method main points are:
Take coal sample 10 to weigh, be contained in the openable chest of bottom, open case in liftoff 2.0m eminence
The end, allow coal sample free-electron model on steel plate thick for 12mm, after repeatedly falling three times, sieve with sieve,
Take respectively more than 5mm and more than the percetage by weight of 13mm level as the fall strength of briquette index of coal sample.
Molding pelletizing comprcssive strength: it is LDS-Y10A pelletizing pressure test that moulded coal agglomerate is placed in model
Aircraft measurements, load speed executed by pressure testing machine is 10mm/min, comprcssive strength unit: newton (N).
The assay method of heat stability: by the common pyrolysis oven of molding pelletizing supply to logical nitrogen, 6
Being pyrolyzed under 50-700 degree 30min-1 hour, after being then pyrolyzed by gained, pelletizing is placed in model is LDS-Y1
Measuring on 0A pellet pressure test machine, load speed executed by pressure testing machine is 10mm/min, pressure resistance
Degree unit: newton (N).
Embodiment 1
A kind of compound binding agent prepares the method for moulded coal, comprises the steps:
1) using the outdoor brown coal in north, the Inner Mongol, its water content is 10%, takes 10kg brown coal, with sealing
Formula analysis and sample making pulverizer crushes, the sieve screening of the brown coal 5mm after crushing, and takes 5mm
Above brown coal are dried upgrading；
2) being dried brown coal, put it in coal heat decomposition stove, heat 6h, brown coal quality is down to
About 8kg, its water content reaches 1%；
3) by dried brown coal crushing, sieve with the sieve of 100 mesh, weigh the brown of below 100 mesh
Coal 1kg and coal tar pitch 30g, sodium humate 60g, put into batch mixer, uniformly mixing 5～10min；
4) coal dust stirred is heated at 150 DEG C 1h, then the mixing coal charge after heating is existed
Under the pressure of 15MPa compressing, 4cm × 3cm × 1.6cm standard briquet, each ball weight can be suppressed
Amount is about 10g；
5) its moulded coal fall strength of briquette 77%, cold comprcssive strength 368N, heat stability 74% after testing.
Embodiment 2
A kind of compound binding agent prepares the method for moulded coal, comprises the steps:
1) using the outdoor brown coal in north, the Inner Mongol, its water content is 10%, takes 10kg brown coal, with sealing
Formula analysis and sample making pulverizer crushes, the sieve screening of the brown coal 5mm after crushing, and takes 5mm
Above brown coal are dried upgrading；
2) being dried brown coal, put it in coal heat decomposition stove, heat 6h, brown coal quality is down to
About 8kg, its water content reaches 1%；
3) by dried brown coal crushing, sieve with the sieve of 100 mesh, weigh the brown of below 100 mesh
Coal 1kg and sodium humate 70g, lignin 70g, put into batch mixer, uniformly mixing 5～10min；
4) coal dust stirred is heated at 95 DEG C 2h, then the mixing coal charge after heating is existed
Under the pressure of 15MPa compressing, 4cm × 3cm × 1.6cm standard briquet, each ball weight can be suppressed
Amount is about 10g；
5) its moulded coal fall strength of briquette 83%, cold comprcssive strength 256N, heat stability 82% after testing.
Embodiment 3
A kind of compound binding agent prepares the method for moulded coal, comprises the steps:
1) using the outdoor brown coal in north, the Inner Mongol, its water content is 10%, takes 10kg brown coal, with sealing
Formula analysis and sample making pulverizer crushes, the sieve screening of the brown coal 5mm after crushing, and takes 5mm
Above brown coal are dried upgrading；
2) being dried brown coal, put it in coal heat decomposition stove, heat 6h, brown coal quality is down to
About 8kg, its water content reaches 1%；
3) by dried brown coal crushing, sieve with the sieve of 100 mesh, weigh the brown of below 100 mesh
Coal 1kg and sodium humate 50g, lignin 50g, microcrystalline Cellulose 10g, put into batch mixer, uniformly
Mixing 5～10min；
4) coal dust stirred is heated at 110 DEG C 2h, then the mixing coal charge after heating is existed
Under the pressure of 15MPa compressing, 4cm × 3cm × 1.6cm standard briquet, each ball weight can be suppressed
Amount is about 10g；
5) its moulded coal fall strength of briquette 81%, cold comprcssive strength 308N, heat stability 80% after testing.
In sum, the compound binding agent of the present invention solve binding agent ash of the prior art many,
The problem that consumption is big, preparation method is complicated and relatively costly, the compound binding agent of the present invention solve with
The moulded coal of preparation is also made to have higher fall strength of briquette, cold comprcssive strength and heat on the basis of upper problem steady
Qualitative, there is bigger prospects for commercial application.
Last it is noted that obviously, above-described embodiment is only to be made by clearly demonstrating the present invention
Citing, and not restriction to embodiment.For those of ordinary skill in the field,
Can also make other changes in different forms on the basis of the above description.Here without also
Cannot all of embodiment be given exhaustive.And the obvious change thus amplified out or change
Move among still in protection scope of the present invention.
Claims (10)
1. a Moulding Process of Brown Coal compound binding agent, it is characterised in that include two kinds in following composition or
Two or more: the sodium humate of 10～70 weight %, 10～60 weight % coal tar pitch and 15～70 weight %
Lignin.
2. Moulding Process of Brown Coal compound binding agent as claimed in claim 1, it is characterised in that described composition
In also include the microcrystalline Cellulose of 0.1～10 weight %.
3. Moulding Process of Brown Coal compound binding agent as claimed in claim 2, it is characterised in that described each one-tenth
The granularity divided is less than 100 mesh.
4. Moulding Process of Brown Coal compound binding agent as claimed in claim 1, it is characterised in that described composition
Including sodium humate and coal tar pitch, its percentage by weight is as follows: sodium humate 40～70 weight %, coal
Colophonium 30～60 weight %.
5. Moulding Process of Brown Coal compound binding agent as claimed in claim 1, it is characterised in that described composition
Including sodium humate and lignin, its percentage by weight is as follows: sodium humate 40～70 weight %, wood
Quality 30～60 weight %.
6. Moulding Process of Brown Coal compound binding agent as claimed in claim 1, it is characterised in that described composition
Including coal tar pitch and lignin, its percentage by weight is as follows: coal tar pitch 30～60 weight %, lignin
40～70 weight %.
7. Moulding Process of Brown Coal compound binding agent as claimed in claim 2, it is characterised in that described composition
Including sodium humate, lignin and microcrystalline Cellulose, its percentage by weight is as follows: sodium humate 40～60
Weight %, lignin 30～50 weight %, microcrystalline Cellulose 1～10 weight %.
8. the method preparing moulded coal, it is characterised in that comprise the steps: to dry brown coal drying
Do to moisture less than 2 weight %, and crushing and screening, until brown coal granularity is less than 100 mesh；Again with broken
On the basis of brown coal powder after screening, by mass percentage, interpolation 5～the claim 1 to 7 of 15%
In arbitrary described compound binding agent, mix homogeneously, heating；Again by the mixed coal powder extruding after heating
Molding, obtains moulded coal.
The method preparing moulded coal the most as claimed in claim 8, it is characterised in that described heating steps
For heating 1～3h at 90～150 DEG C.
The method preparing moulded coal the most as claimed in claim 8, it is characterised in that after described heating
Mixed coal powder extruded under the pressure of 15～20MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306380.0A CN105950245A (en) | 2016-05-10 | 2016-05-10 | Compound binder for lignite molding and molded coal preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306380.0A CN105950245A (en) | 2016-05-10 | 2016-05-10 | Compound binder for lignite molding and molded coal preparation method |
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| CN201610306380.0A Pending CN105950245A (en) | 2016-05-10 | 2016-05-10 | Compound binder for lignite molding and molded coal preparation method |
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| CN107129848A (en) * | 2017-04-21 | 2017-09-05 | 常州思宇环保材料科技有限公司 | A kind of preparation method of complex biological matter briquette binder |
| WO2018137597A1 (en) * | 2017-01-24 | 2018-08-02 | 福州大学 | Methods for preparing coal briquette binder using refuse leachate and for producing industrial coal briquette using same |
| CN109385289A (en) * | 2018-11-06 | 2019-02-26 | 中国科学院山西煤炭化学研究所 | A method of using anthracite as main material production semicoke |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018137597A1 (en) * | 2017-01-24 | 2018-08-02 | 福州大学 | Methods for preparing coal briquette binder using refuse leachate and for producing industrial coal briquette using same |
| US10752855B2 (en) | 2017-01-24 | 2020-08-25 | Fuzhou University | Method for preparing briquette binder using landfill leachate and method for producing industrial briquette using briquette binder |
| DE112018000489B4 (en) | 2017-01-24 | 2022-10-27 | Fujian Boyi Environmental Protection Technology Co., Ltd. | Production of briquette binder with landfill leachate and its process for the production of industrial briquettes |
| CN107129848A (en) * | 2017-04-21 | 2017-09-05 | 常州思宇环保材料科技有限公司 | A kind of preparation method of complex biological matter briquette binder |
| CN109385289A (en) * | 2018-11-06 | 2019-02-26 | 中国科学院山西煤炭化学研究所 | A method of using anthracite as main material production semicoke |
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