CN110257119A - A kind of composite briquette and preparation method thereof that biogas residue is mixed with coal - Google Patents
A kind of composite briquette and preparation method thereof that biogas residue is mixed with coal Download PDFInfo
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- CN110257119A CN110257119A CN201910505697.0A CN201910505697A CN110257119A CN 110257119 A CN110257119 A CN 110257119A CN 201910505697 A CN201910505697 A CN 201910505697A CN 110257119 A CN110257119 A CN 110257119A
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- Prior art keywords
- coal
- biogas residue
- mixture
- composite briquette
- scattered
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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
-
- 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
- C10L5/12—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with inorganic binders
-
- 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
- C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
-
- 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
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses the composite briquettes and preparation method thereof that a kind of biogas residue and coal are mixed with.Preparation method, which includes the following steps: to mix coal with biogas residue, to be crushed, and then adds bentonite, quick lime, water after evenly mixing, compression forming.The present invention can be effectively utilized biogas residue, and under the premise of guaranteeing composite briquette structural strength, reduce the usage amount of the adhesives such as bentonite, reduce the production cost of moulded coal, and composite briquette kindling is more easier, burns more abundant, ash content reduces 50% or more.
Description
Technical field
The present invention relates to the composite briquettes and preparation method thereof that a kind of biogas residue and coal are mixed with, and belong to clean energy utilization
Field.
Background technique
Biogas project useless dirty processing, in terms of there is advantageous advantage, develop in recent years in China
Extremely rapidly, various scale methane station quantity are increased with annual 7% speed, it is contemplated that arrive the average annual utilization of the year two thousand twenty China biogas
It can reach 440 billion cubic meters.But biogas project is popularized while bringing renewable energy, also along with a large amount of biogas slurries,
The generation of biogas residue would seriously pollute the environment without processing direct emission.Contain lignocellulosic elements in biogas residue, calorific value can reach
To 1.64 × 107How its recycling treatment is to restrict the key factor of biogas project development by J/kg.At present to solid-state biogas residue
Tupe be mainly processing and fabricating be padding and direct returning to farmland, a large amount of returning to the field uses be easy to cause farmland nutrition accumulation,
And economy is lower.Non-renewable energy resources-coal maximum for usage amount, due to the limitation of production technique, in the exploitation of coal
Cheng Zhonghui generates a large amount of coal dust, and coal dust needs the utilization channel of economical rationality.Under the guidance of national policy, electricity is for coal, gas
Becoming a kind of trend for coal, this is all coal-fired existing problem, and biogas residue, which is mixed with composite briquette with coal dust, to be
Biogas residue recycling treatment, coal dust utilization, subtract coal open new approaches.The characteristics of inefficient compared to scattered coal burning, high row, moulded coal tool
There is more excellent environmental benefit, production method is simple, combustion efficiency is good, is widely used in Rural Areas of China.In moulded coal
In manufacturing process, in order to guarantee enough structural strengths, generally require to add a large amount of additive, such as starch, bentonite, this
The cost of manufacture for undoubtedly improving moulded coal, also improves ash content to a certain extent, reduces calorific value.How to reduce additive makes
With, reduce cost of manufacture be moulded coal production technology develop required for facing challenges.
Summary of the invention
The object of the present invention is to provide the composite briquette and preparation method thereof that a kind of biogas residue and coal are mixed with, energy of the present invention
It is effectively utilized biogas residue, and under the premise of guaranteeing composite briquette structural strength, reduces the usage amount of the adhesives such as bentonite, is dropped
The low production cost of moulded coal, composite briquette kindling are more easier, burn more abundant, ash content reduces 50% or more.
A kind of preparation method of composite briquette provided by the invention, includes the following steps:
1) scattered coal is mixed with biogas residue, obtains mixture；
2) bentonite, quick lime and water mixing are added in Xiang Suoshu mixture；
3) composite briquette is obtained after compression forming after each component mixing in step 2).
In above-mentioned method, the quality of the biogas residue dry weight and the mass ratio of the scattered coal are 5~12:100.
In above-mentioned method, the coal particle partial size of scattered coal is 0~3mm in the mixture, and is not zero；The biogas residue
Fibre length is less than 8mm；
The biogas residue is prepared to include the following steps: after (by taking cow dung as an example) waste anaerobic fermentation of ruminant through solid-liquid point
From acquisition.The ruminant waste specifically includes cow dung.
In the present invention, the biogas residue specifically can be selected from the vaccary for having anaerobic fermentation engineering, be squeezed by dedicated spiral
Pressure type solid-liquid separating machine separates acquisition from biogas slurry；
The spiral of Li Yang environment protection energy-saving equipment Manufacturing Co., Ltd, Jining City production specifically can be used in the solid-liquid separating machine
Squash type solid-liquid separating machine, model LJG-280,1300 × 1280 × 80mm of outer dimension；
The biogas residue main component is indigested crude fibre residue, such as the fiber in stalk.
In above-mentioned method, scattered coal described in step 1) crushes after mixing or mixing after crushing respectively with the biogas residue.
In the present invention, the 500 type movable type powder for crushing the optional Gongyi City's red flag machinery plant of adoptable pulverizer
Coal machine.
In above-mentioned method, the method also includes drying the biogas residue before step 1).Concretely
Being dried to quality moisture content is 5% or less.
In above-mentioned method, the scattered coal is anthracite and/or bituminous coal；
For convenience of crushing, the partial size before the scattered coal crushes is less than 4cm.
In the present invention, the anthracite in the anthracite concretely Shenmu Shanxi county, the bituminous coal concretely Inner Mongol
The bituminous coal of Ordos City.
In above-mentioned method, the scattered coal is that mass ratio can be the anthracite of 1:1~2 and the Mixture Density Networks of bituminous coal.
In above-mentioned method, the matter of the quality of the mixture dry weight and the bentonite, the quick lime and the water
Amount is than being 100:5~10:3~8:8~12.
In the present invention, the additive amount measurement standard of the water is after each component mixes until can be held with hand agglomerating；
Mixed uniformly standard is until mixture does not have obvious color difference and agglomerate in step 3).
In above-mentioned method, the pressure of the compression forming is 1 × 105~2 × 105N。
In the present invention, step 3) composite briquette molding equipment can be used Gongyi City's moral abundant mechanical equipment sale Co., Ltd raw
The totally-enclosed honeycomb briquet making making machine produced, briquetting pressure 1.2 × 105N, productivity are 60 pieces/point.
The present invention also provides the composite briquettes that above-mentioned method is prepared.
Composite briquette of the present invention is effectively utilized biogas residue, and under the premise of guaranteeing composite briquette structural strength, reduces swollen
The usage amount for moistening the adhesives such as soil reduces the production cost of moulded coal, and composite briquette kindling is more easier, burns more abundant,
Its ash content reduces 50% or more, has good market prospects.
The invention has the following advantages that
1) so that biogas project byproduct biogas residue is fully utilized, and reduce polluted gas or PM2.5Discharge,
Be conducive to the protection of environment；
2) reduce the production cost of moulded coal；
3) moulded coal ash content is reduced；
4) reduce the stacking, transport and processing cost of biogas residue；
5) the processing problem of solid fuel ignition residue lime-ash is solved.
Detailed description of the invention
Fig. 1 is the additive bentonite that adhesive effect is played in composite briquette.
Fig. 2 is the additive quick lime that sulfur fixation is played in composite briquette.
Fig. 3 is the scattered coal coal sample that processes raw material in composite briquette, and wherein Fig. 3 (a) is the anthracite in Shenmu Shanxi county, Fig. 3
It (b) is the bituminous coal of Ordos of Inner Mongolia.
Fig. 4 is composite briquette example, and wherein Fig. 4 (a) is to be prepared in the embodiment of the present invention 1, and Fig. 4 (b) is comparison
What example was prepared.
Fig. 5 is composite briquette combustion test process.
Specific embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1,
1, biogas residue obtains
Biogas slurry in anaerobic fermentation pond is extracted out by pipeline, is poured into screw extrusion separator, is removed water by squeezing, Gu
State biogas residue is discharged by front end, and separating obtained biogas residue need to further be dried to quality percentage moisture content lower than 5%.
2, prepared by composite briquette
(1) scattered coal prepares and mixes
The anthracite in Shenmu Shanxi county and the bituminous coal of Ordos of Inner Mongolia are chosen, calculates weight in wet base matter according to dry weight 1:1
It measures and mixing of weighing carries out appropriate pretreatment and reduce partial size to 4cm or less if the partial size of coal cinder is excessive；Biogas residue is added, coal quality is accounted for
The 10% of amount is added pulverizer and is crushed after being sufficiently mixed.
(2) additive selects
5% bentonite, 5% quick lime and water 12% are added respectively, and the additive amount measurement standard of water is until using hand energy
Enough hold agglomerating, the benchmark of additive amount is the quality of coal under dry weight.
(3) fuel forming
Mixture is mixed well in composite briquette production equipment, until mixture does not have obvious color difference and agglomerate is
Only, then composite briquette is made in compression forming.
Comparative example,
1, prepared by moulded coal
(1) scattered coal prepares and mixes
The anthracite in Shenmu Shanxi county and the bituminous coal of Ordos of Inner Mongolia are chosen, calculates weight in wet base matter according to dry weight 1:1
It measures and mixing of weighing carries out appropriate pretreatment and reduce partial size to 4cm hereinafter, addition pulverizer carries out if the partial size of coal cinder is excessive
It crushes.
(2) additive selects
12% bentonite, 10% quick lime and 15% water are added respectively, and the additive amount measurement standard of water is until using hand
It can hold agglomerating, the benchmark of additive amount is the quality of coal under dry weight.
(3) fuel forming
Mixture is mixed well in molded coal production facility, until mixture does not have obvious color difference and agglomerate, and
Moulded coal is made in compression forming afterwards.
CO discharge is 13.19g/MJ in the embodiment of the present invention 1, and comparative example CO discharge is 5.47g/MJ, emission reduction 58.53%.
NO discharge is 170mg/MJ in embodiment 1, and comparative example NO discharge is 54mg/MJ, emission reduction 68.24%.In the embodiment of the present invention 1
PM2.5Discharge is 0.037mg/MJ, comparative example PM2.5Discharge is 0.12mg/MJ, emission reduction 68.83%.It is waved in the embodiment of the present invention 1
Hair is divided into 11.71%, and comparative example volatilization is divided into 15.94%.Sulphur content is 0.42% in the embodiment of the present invention 1, comparative example volatile matter
It is 0.52%.To sum up, illustrate that the present invention makes biogas project byproduct biogas residue be fully utilized, and reduce polluted gas
Or PM2.5Discharge, be conducive to the protection of environment；Both reduce the problem of biogas residue is stacked and handled using biogas residue, and solves solid
The processing problem of fuel combustion residue lime-ash, and the cost of moulded coal production can be reduced.
Claims (10)
1. a kind of preparation method of composite briquette, includes the following steps:
1) scattered coal is mixed with biogas residue, obtains mixture；
2) bentonite, quick lime and water mixing are added in Xiang Suoshu mixture；
3) composite briquette is obtained after compression forming after each component mixing in step 2).
2. according to the method described in claim 1, it is characterized by: the mass ratio of the quality of the biogas residue dry weight and the scattered coal
For 5~12:100.
3. method according to claim 1 or 2, it is characterised in that: in the mixture coal particle partial size of scattered coal be 0~
3mm, and be not zero；The fibre length of the biogas residue is less than 8mm；
It prepares after the biogas residue includes the following steps: the waste anaerobic fermentation of ruminant and is obtained through being separated by solid-liquid separation.
4. method according to claim 1 or 3, it is characterised in that: scattered coal described in step 1) and the biogas residue are respectively
It is crushed after mixing or mix after crushing.
5. method according to any of claims 1-4, it is characterised in that: the method also includes before step 1)
The step of by biogas residue drying.
6. method according to any one of claims 1-5, it is characterised in that: the scattered coal is anthracite and/or bituminous coal；
Partial size before the scattered coal crushes is less than 4cm.
7. method according to claim 1 to 6, it is characterised in that: the scattered coal is that mass ratio is 1:1~2
The Mixture Density Networks of anthracite and bituminous coal.
8. method according to any one of claims 1-7, it is characterised in that: the quality of the mixture dry weight with it is described
The mass ratio of bentonite, the quick lime and the water is 100:5~10:3~8:8~12.
9. method according to claim 1 to 8, it is characterised in that: the pressure of the compression forming is 1 × 105
~2 × 105N。
10. the composite briquette that method of any of claims 1-9 is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505697.0A CN110257119A (en) | 2019-06-12 | 2019-06-12 | A kind of composite briquette and preparation method thereof that biogas residue is mixed with coal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910505697.0A CN110257119A (en) | 2019-06-12 | 2019-06-12 | A kind of composite briquette and preparation method thereof that biogas residue is mixed with coal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760149A (en) * | 2019-10-21 | 2021-05-07 | 中国农业大学 | Composite briquette prepared by mixing cow dung and coal and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793297A (en) * | 2005-12-30 | 2006-06-28 | 西安交通大学 | Biomass heneycomb briquette formula using power compounding coal tech. |
| CN104987905A (en) * | 2015-08-10 | 2015-10-21 | 南开大学 | Biogas residue made coal briquette binder and coal briquette manufacturing method |
-
2019
- 2019-06-12 CN CN201910505697.0A patent/CN110257119A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793297A (en) * | 2005-12-30 | 2006-06-28 | 西安交通大学 | Biomass heneycomb briquette formula using power compounding coal tech. |
| CN104987905A (en) * | 2015-08-10 | 2015-10-21 | 南开大学 | Biogas residue made coal briquette binder and coal briquette manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760149A (en) * | 2019-10-21 | 2021-05-07 | 中国农业大学 | Composite briquette prepared by mixing cow dung and coal and preparation method thereof |
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Application publication date: 20190920 |