CN110964581A - Post-forming biomass fuel production method - Google Patents
Post-forming biomass fuel production method Download PDFInfo
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- CN110964581A CN110964581A CN201911154331.XA CN201911154331A CN110964581A CN 110964581 A CN110964581 A CN 110964581A CN 201911154331 A CN201911154331 A CN 201911154331A CN 110964581 A CN110964581 A CN 110964581A
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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
-
- 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
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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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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Geochemistry & Mineralogy (AREA)
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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a post-forming biomass fuel production method, which comprises the following steps: (1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; (2) weighing the following raw materials in parts by weight: 55-95 parts of biomass powder obtained in the step (1), 0-40 parts of peat and 5-45 parts of needle coke, and uniformly mixing; (3) performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 400-600 ℃; (4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 5-15% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The invention not only can enhance the combustion performance of the molding fuel, but also can ensure that the finished product after compression molding has certain external force resistance, is not easy to break, has less smoke and dust discharged in the combustion process, has less ash residue after combustion and has more stable combustion performance.
Description
Technical Field
The invention relates to the technical field of development and utilization of renewable energy sources, in particular to a post-forming biomass fuel production method.
Background
The biomass briquette fuel is prepared by taking agricultural and forestry residues as a main raw material and carrying out processes of slicing, crushing, impurity removal, fine powder screening, mixed softening, tempering, extrusion, drying, cooling, quality inspection, packaging and the like, and finally the briquette fuel is high in heat value and sufficient in combustion. The boiler fuel belongs to clean low-carbon renewable energy, has long combustion time, high temperature of a combustion-strengthening hearth, is economical and practical, has no pollution to the environment, and is a high-quality environment-friendly fuel for replacing conventional fossil energy.
Disclosure of Invention
The invention aims to solve the technical problem of providing a post-forming biomass fuel production method, and the prepared biomass fuel has high heat value, large heat productivity, stable combustion performance and strong anti-slagging capability.
In order to solve the technical problems, the invention adopts the following technical scheme:
a post-forming biomass fuel production method is designed, and comprises the following steps:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use;
(2) weighing the following raw materials in parts by weight: 55-95 parts of biomass powder obtained in the step (1), 0-40 parts of peat and 5-45 parts of needle coke, and uniformly mixing;
(3) performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 400-600 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 5-15% and the pressure is more than 300MPa to obtain a biomass fuel finished product.
Preferably, the biomass raw material is one or more of straw, sawdust, wood chip, peanut shell, poplar bark and poplar branch.
Preferably, the fineness of the coal slime and the fineness of the needle coke are both not more than 60 meshes.
Preferably, the coal slime is low-quality low-calorific-value coal after coal washing.
Preferably, the shape of the finished biomass fuel product in the step (4) is cylindrical.
Preferably, the finished biomass fuel in the step (4) is particles with the diameter of 5-8 mm.
Preferably, the weight part of the peat in the step (2) is 5-40 parts.
The invention has the beneficial effects that:
the biomass fuel prepared by the invention has high heat value, large heat productivity and low sulfur content, the volatile matter is more than 25 percent, the sulfur content is less than 1 percent, and the combustion heat is more than 5000 kilocalories. Compared with the prior art, the method for manufacturing the biomass fuel by using machine-made charcoal to mold first and then carbonize (i.e. to mold charcoal first), not only can enhance the combustion performance of the molded fuel, but also can enable the finished biomass fuel to have certain external force resistance after compression molding, be not easy to break in the transportation or storage process, discharge less smoke and dust in the combustion process, have less ash residues after combustion, have more stable combustion performance and strong anti-slagging capacity, and can effectively reduce slagging corrosion in the straw combustion process. The needle coke is used as the binder, so that the heat value is high, the heat productivity is large, and the sulfur content is low.
Detailed Description
The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way. The apparatus elements referred to in the following examples are, unless otherwise specified, conventional apparatus elements; the industrial raw materials are all conventional industrial raw materials which are sold on the market, if not specifically mentioned.
Example 1: a post-forming biomass fuel production process comprising the steps of:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; the biomass raw material adopts one or more of straw, sawdust, wood chips, peanut shells, poplar barks and poplar branches.
(2) Weighing the following raw materials in parts by weight: 55 parts of biomass powder obtained in the step (1), 10 parts of peat and 20 parts of needle coke, and uniformly mixing; the fineness of the coal slime and the fineness of the needle coke are not more than 60 meshes, and the coal slime adopts low-quality low-calorific-value coal after coal washing.
(3) Performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 500 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 10% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The finished product of the biomass fuel is cylindrical or granular with the diameter of 5-8 mm.
Example 2: a post-forming biomass fuel production process comprising the steps of:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; the biomass raw material adopts one or more of straw, sawdust, wood chips, peanut shells, poplar barks and poplar branches.
(2) Weighing the following raw materials in parts by weight: 70 parts of biomass powder obtained in the step (1), 15 parts of peat and 30 parts of needle coke, and uniformly mixing; the fineness of the coal slime and the fineness of the needle coke are not more than 60 meshes, and the coal slime adopts low-quality low-calorific-value coal after coal washing.
(3) Distilling and carbonizing the mixed raw material obtained in the step (2) at 550 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 12% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The finished product of the biomass fuel is cylindrical or granular with the diameter of 5-8 mm.
Example 3: a post-forming biomass fuel production process comprising the steps of:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; the biomass raw material adopts one or more of straw, sawdust, wood chips, peanut shells, poplar barks and poplar branches.
(2) Weighing the following raw materials in parts by weight: 90 parts of biomass powder obtained in the step (1), 25 parts of peat and 40 parts of needle coke, and uniformly mixing; the fineness of the coal slime and the fineness of the needle coke are not more than 60 meshes, and the coal slime adopts low-quality low-calorific-value coal after coal washing.
(3) Performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 600 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 15% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The finished product of the biomass fuel is cylindrical or granular with the diameter of 5-8 mm.
Example 4: a post-forming biomass fuel production process comprising the steps of:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; the biomass raw material adopts one or more of straw, sawdust, wood chips, peanut shells, poplar barks and poplar branches.
(2) Weighing the following raw materials in parts by weight: 95 parts of biomass powder obtained in the step (1) and 45 parts of needle coke, and uniformly mixing; the fineness of the coal slime and the fineness of the needle coke are not more than 60 meshes, and the coal slime adopts low-quality low-calorific-value coal after coal washing.
(3) Performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 600 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 15% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The finished product of the biomass fuel is cylindrical or granular with the diameter of 5-8 mm.
Example 5: a post-forming biomass fuel production process comprising the steps of:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use; the biomass raw material adopts one or more of straw, sawdust, wood chips, peanut shells, poplar barks and poplar branches.
(2) Weighing the following raw materials in parts by weight: 75 parts of biomass powder obtained in the step (1), 10 parts of peat and 30 parts of needle coke, and uniformly mixing; the fineness of the coal slime and the fineness of the needle coke are not more than 60 meshes, and the coal slime adopts low-quality low-calorific-value coal after coal washing.
(3) Performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 500 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 15% and the pressure is more than 300MPa to obtain a biomass fuel finished product. The finished product of the biomass fuel is cylindrical or granular with the diameter of 5-8 mm.
The biomass fuel prepared by the invention has the volatile content of more than 25 percent, the sulfur content of less than 1 percent and the combustion heat of more than 5000 kilocalories. The production method of the post-forming biomass fuel can enhance the combustion performance of the forming fuel, can enable the finished product after compression forming to have certain external force resistance, is not easy to break, has less smoke and dust discharged in the combustion process, has less ash residue after combustion, and has more stable combustion performance.
While the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various changes can be made in the specific parameters of the embodiments without departing from the spirit of the present invention, and that various specific embodiments can be made, which are common variations of the present invention and will not be described in detail herein.
Claims (7)
1. A post-forming biomass fuel production method is characterized by comprising the following steps:
(1) biomass raw material treatment: drying, crushing and crushing the biomass raw material, and selecting biomass powder with the fineness of 40 meshes and the balance of not more than 20% for later use;
(2) weighing the following raw materials in parts by weight: 55-95 parts of biomass powder obtained in the step (1), 0-40 parts of peat and 5-45 parts of needle coke, and uniformly mixing;
(3) performing dry distillation and carbonization on the mixed raw material obtained in the step (2) at the temperature of 400-600 ℃;
(4) and (4) pressurizing and molding the mixed raw material obtained in the step (3) under the conditions that the water content is 5-15% and the pressure is more than 300MPa to obtain a biomass fuel finished product.
2. The post-forming biomass fuel production method of claim 1, wherein the biomass raw material is one or more of straw, sawdust, wood chips, peanut shells, poplar bark and poplar branches.
3. The post-forming biomass fuel production method according to claim 1, wherein the fineness of the coal slurry and the fineness of the needle coke are not more than 60 meshes.
4. The post-forming biomass fuel production method according to claim 1, wherein the coal slurry is low-quality low-calorific-value coal after coal washing.
5. The post-forming biomass fuel production method according to claim 1, wherein the finished biomass fuel in the step (4) is cylindrical in shape.
6. The post-forming biomass fuel production method according to claim 1, wherein the finished biomass fuel in the step (4) is particles with a diameter of 5-8 mm.
7. The post-forming biomass fuel production method according to claim 1, wherein the weight part of the peat in the step (2) is 5 to 40 parts.
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| CN201911154331.XA CN110964581A (en) | 2019-11-22 | 2019-11-22 | Post-forming biomass fuel production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111944572A (en) * | 2020-08-25 | 2020-11-17 | 中天恒合(天津)国际贸易有限公司 | Chemical product coal blending formula |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557103A (en) * | 2016-06-30 | 2018-01-09 | 爱诺威尔新能源科技（天津）有限公司 | A kind of forming method of modified biomass fuel |
| CN109868173A (en) * | 2019-03-28 | 2019-06-11 | 信阳鑫盛实业有限公司 | The production method of molding coal additive after a kind of |
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- 2019-11-22 CN CN201911154331.XA patent/CN110964581A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557103A (en) * | 2016-06-30 | 2018-01-09 | 爱诺威尔新能源科技（天津）有限公司 | A kind of forming method of modified biomass fuel |
| CN109868173A (en) * | 2019-03-28 | 2019-06-11 | 信阳鑫盛实业有限公司 | The production method of molding coal additive after a kind of |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111944572A (en) * | 2020-08-25 | 2020-11-17 | 中天恒合(天津)国际贸易有限公司 | Chemical product coal blending formula |
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