CN101824348B - Method for preparing biomass compact fuel with rubber seed hull - Google Patents
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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
The invention discloses a method for preparing a biomass compact fuel with rubber seed hulls, comprising the following steps: grinding well-stored rubber seed hulls in proper grain diameter, adding a proper amount of organic adhesive, and putting in a pressure-type forming machine after stirring; controlling technological parameters of pressure, humidity, rotate speed and the like to solidify theadhesive rubber seed hulls, changing volume weight, increasing heat value and improving combustibility to produce solid and compact fuel which is convenient for storage and transportation. The biomass compact fuel can be used for direct combustion or combustion with coal in boilers; or can be produced into the rod-shaped biomass compact fuel of wood charcoal by forming into rod-shaped material and further vehiclerying out pyrolysis by a kiln process. The wood charcoal can be widely used for civil life, industrial production, etc.
Description
Technical field
The present invention relates to the technical field of utilizing unconventional raw material to prepare biomass compact fuel, particularly relate to and utilize rubber seed hull to prepare the biomass compact fuel processing method.
Background technology
As everyone knows, entered since 21st century, human society is faced with serious energy problem, and solving the problem of environmental pollution that causes in energy shortage and the energy development is the key of human kind sustainable development.Biomass compact fuel is a kind of of biomass energy.It has renewable and eco-friendly dual characteristics biomass energy, is considered to the important component part of following sustainable energy system.Biomass energy changes the unit weight of biomass by the curing molding technology, improves fuel value, has improved combustionproperty, makes it become solid, the hard-packed solid forming compact fuel of quality.The solid forming biomass compact fuel is available energy (heat or electric power) by direct burning conversion, is main one of mode of utilizing of biomass energy.
Biomass are various organic substances that occurring in nature has life to grow, and comprise animals and plants and microorganism.Can be used as the part that the energy is used by people in the biomass and be called biomass energy.Wherein to have a volatiles high for the biomass solid compact fuel, and the carbon activity is high, and sulphur, nitrogen content are low, the advantage that ash content is low.Existing mineral fuel attribute, the characteristics of can store again, transport, regenerate, changing are the less a kind of energy that is subjected to the natural condition restriction.From the angle analysis of life cycle, the biomass combustion release of carbon dioxide is not given carbon dioxide content increase in the atmosphere.Therefore, according to international agreement, this part carbonic acid gas is not made greenhouse gases and is processed.The Chinese government has included biomass energy in the extrusion position that ensures national development, the important measures of the technical progress of accelerating the material energy as sustainable stably development and energy-saving and emission-reduction, the renewable energy source that comprises biomass energy is the field that China energy is first developed.
Very abundant in China's biomass energy, many resources are utilized not yet well, become waste in the residuum overwhelming majority that the industries such as Agriculture, forestry And Animal Husbandry pair produce, and become the environmental pressure of every profession and trade.And on the other hand, the conventional energy resources of China is in short supply to have had a strong impact on socioeconomic fast development, and on a large scale concentrated use of fossil energy, has caused harm for human living environment.Country has promulgated the multi-section law for this reason, strengthen energetically the development research of renewable energy technologies.Biomass energy is occupied critical role as the fourth-largest Energy resources in renewable energy source.The shortage that the exploitation biomass energy both can have been replenished conventional energy resources also has great environmental benefit.Compare with other biological mass-energy source technology, the biomass compact fuel technology more easily realizes scale operation and use, and its degree easy to use can allow common people easily be easy to accept.So, utilize biomass compact fuel that wide development space and good market outlook are arranged.In numerous biomass energies, the rubber seed shell is a kind of precious resources that people can not forget.The provinces and regions kinds such as Hainan Province of China, Yunnan Province, Guangdong Province, Guangxi Zhuang Autonomous Region are implanted with nearly 13,000,000 mu rubber forest.Only just there is more than 600 ten thousand mu cultivated area in the Xishuangbanna in Yunnan, the annual rubber seed that can produce more than 30 ten thousand tons, these seeds contain abundant grease and protein, through energetically promotion and the popularization of local scientific research institution and government department, have caused interest and the concern of industrial community at present.Rubber seed will produce a large amount of rubber seed hulls in the process that is utilized, its ratio will account for 45 percent of gross weight.And rubber seed hull contains a large amount of xylogen (accounting for about 20%), Mierocrystalline cellulose (accounting for about 45%), hemicellulose (accounting for 14.5%), and hydrogen richness reaches 7 percent; Oxygen level reaches 36 percent.Lower heat value reaches 66 percent of mark coal calorific value (29.3MJ/kg) at 19.50MJ/kg behind its compression moulding fuel.To manufacture the splendid raw material of biomass energy compact fuel.But this " being misplaced local resource " suffered to treat coldly for a long time, has been wasted.Now along with people to the re-recognizing of biomass resource, the value of rubber seed and shell thereof more and more is taken seriously.Particularly the provinces and regions of China's establishing in large scale rubber all are the tropical rain forest areas, and ecotope is extremely responsive, environmental protection requirement is higher, again away from solid fuel supply places such as coals, and the under-supply development that is restricting local economy of primary energy source.And cut down trees and be to bring larger pressure to ecotope by fuel by cutting firewood in traditional habit.Utilizing rubber seed hull manufacture biomass compact fuel both can satisfy industrial production and the people to the demand of the energy, can make again waste recycling protection of the environment and ecology, is that part is suited measures to local conditions, and kills two birds with one stone, and benefits the cause of society.
The manufacture cardinal principle of biomass compact fuel is: (heat or do not heat) under certain pressure-acting, making originally, loose, in small, broken bits, unbodied biomass material is compressed into larger granular, block, the bar-shaped various shaped fuels of density.The contraction principle of biomass compact fuel can be divided into the deformation result of closely knit filling, surface deformation and destruction, three kinds of reasons of viscous deformation.It at first is closely knit filling, little, the loose raw material in small, broken bits of effect lower density in external force is subjected to displacement and rearranges at the mould endoparticle, variation has occured in intergranular contact condition, from point, line contact beginning to line or face changes in contact, contact area increases gradually, until finish filling to the mould finite space, the unit weight of raw material increases, and has realized closely knit filling; Along with the increase of external pressure, primary particle produces recoverable deformation and because relative displacement causes surface deformation and destruction; After externally pressure further increases, the viscous deformation that is produced by stress is further dwindled the void among particles rate, density continues to increase, the increasing of the increase specific density of its contact area wanted large hundreds of even thousands of times, impel to produce complicated mechanical engagement and intermolecular bonding force (particularly having under the condition of cakingagent), this process is referred to as viscous deformation.
For not making the material rebound deformation after the compression, in compression, an amount of cakingagent must be arranged.Cakingagent can be produced by material itself in compression, also can add on demand.
Because China is vast in territory, raw material types is various, the in addition imbalance of economic technology development, the biomass compact fuel that various places produce also varies on quality, and is very different.Subject matter is:
(1), think little of raw-material collection keeping, cause rotten loss of effective constituent in the raw material, reduced the combustion heat value of biomass compact fuel;
(2), in processing and forming technology, particularly in the bar moulding for improving degree of compactness and intensity, adopt the technology mode of high temperature, high pressure, but brought that energy consumption is high, the mechanical component wearing and tearing are large, the problems such as product temperature highly easily is charred, spontaneous combustion.This is the manufacturer of each biomass compact fuel, face and need the urgent problem that solves.
For deficiency and the problem of above-mentioned existence, this patent proposes to have starting material the warehouse style keeping measure of strict demand; The interpolation cakingagent can play and cohere and lubrication in the compression moulding process, can effectively solve the above problems.
Summary of the invention
Unconventional raw material of the present invention refers in particular to the shell of rubber seed.The objective of the invention is to utilize rubber seed hull to prepare biomass compact fuel for raw material production, provide a kind of convenience feasible processing method.
Patent of the present invention contains following steps with the method that rubber seed hull prepares biomass compact fuel:
(1), the virgin rubber seed is really done rapid drying, separation of hull from kernel and is processed after, collect and be stored in spiral steel plate vertical silo or the special-purpose warehouse, rubber seed hull raw material water content is controlled at 10～15%, and temperature≤22 ℃ are piled under high≤6m condition and stacked storage and custody;
(2), pulverize: rubber seed hull is put into pulverizer processing pulverize, grinding particle size is 1～1.5mm;
(3), compression moulding: the rubber seed hull after will pulverizing is suppressed the formation biomass compact fuel in two ways, the one, utilize the roller molding mode that raw material is pressed into particle, patch fuel; To utilize the screw extrusion mode that raw material is pressed into rod-type fuel element in addition;
(4), as required, or with kiln process to clavate fuel heat cracking processing charcoal, require to use the baking kiln of building at clayed ground, temperature reaches 280 ℃, but oxygen feeding stop;
(5), be cooled to room temperature packing warehouse-in.
The requirement of described special warehouse is: terrace is intact, solid, smooth, and lays effective moisture-proof barrier; Wall is intact, firm, inboard level and smooth, the high 6m of bearing wall, the damp proof insulation section will be laid damp proof material, exterior wall is coated with light color, guarantees to accomplish: on do not leak, lower not damp, ventilate, cover, waterproof.
Described roller moulding is: the raw material after will pulverizing, in the scope of water ratio 12～17%, add the cakingagent of mass percent≤3%, after the stirrer stirring, put into horizontal ring die and be molded into, at rotating speed 140～220r/min, under compression ratio (ratio of the useful length of finger pressure mould and die throat diameter) 1.5～4 processing condition, obtain diameter and be no more than the granular fuel of 50mm in 6-12mm length, adjust compression ratio, can get patch fuel;
Described spiral extrusion shaping is: the raw material after will pulverizing, add the cakingagent of mass percent≤5%, in the scope of water ratio 10～17%, after the stirrer stirring, put into screw extrusion press, at forming pressure 40～75MPa, under the processing condition of the screw rod speed of mainshaft 450～800r/min, be pressed into the hollow circle or the hexagon barred body that are yellow black, external diameter is at 50～55mm, internal orifice dimension is at 15～20mm, and length is the machine-made stick of 450～500mm.
The organic binder that adds in the described rubber seed hull after pulverizing is: wood tar oil, vegetables oil " oil foot ", lac are shellac or molasses, and the mass percent of the cakingagent that adds is between 3～5%.
The described room temperature packing warehouse-in that is cooled to is: being cooled to room temperature all need to be with natural wind or pressure wind cooling room temperature in the place that the screening canopy is arranged or storehouse; The storehouse of warehouse-in should have good ventilation, moistureproof facility.Particle, block compact fuel can be packed, and excellent type charcoal is used waterproof cloth, paper bag is wrapped up in, and refill the case outward transport.
The present invention realizes by following steps:
(1), raw material is collected and is stored.With collecting warehouse-in with rubber seed hull behind the separation of hull from kernel, be stored in spiral steel plate vertical silo or the special-purpose warehouse.As use special-purpose warehouse, to the requirement in warehouse be: terrace is intact, solid, smooth, and lays effective moisture-proof barrier; Wall is intact, firm, inboard level and smooth, the high 6m of bearing wall, and the damp proof insulation section will be laid damp proof material, and exterior wall is coated with light color.Guarantee to accomplish: on do not leak, lower not damp, ventilate, cover, waterproof.In water content 10～15%, temperature≤22 ℃ are piled under high≤6m condition and are stacked storage and custody.
(2), pulverize.Rubber seed hull is put into pulverizer processing pulverize, grinding particle size is 1～1.5mm;
(3), compression moulding.Rubber seed hull after the pulverizing can be suppressed the formation biomass compact fuel in two ways, and the one, utilize the roller molding mode that raw material is pressed into particle, patch fuel; To utilize the screw extrusion mode that raw material is pressed into rod-type fuel element in addition.
1, roller moulding.With the raw material after pulverizing, in the scope of water ratio 12～17%, add the cakingagent of≤3% (mass percent), cakingagent can be any in wood tar oil, plant " pin oil ", lac solvent, the molasses.After the stirrer stirring, putting into horizontal ring die is molded into, at rotating speed 140～220r/min, under compression ratio (ratio of the useful length of finger pressure mould and die throat diameter) 1.5～4 processing condition, obtain diameter and be no more than the granular fuel of 50mm in 6-12mm length.Adjust compression ratio, can get patch fuel.
2, spiral extrusion shaping.With the raw material after pulverizing, add the cakingagent of≤5% (mass percent), cakingagent can be wood tar oil, plant " pin oil ", lac solvent, molasses etc.In the scope of water ratio 10～16%, after the stirrer stirring, put into screw extrusion press, at forming pressure 40～75MPa, under the processing condition of the screw rod speed of mainshaft 450～800r/min, be pressed into the hollow circle or the hexagon barred body that are yellow black, external diameter is at 50～55mm, internal orifice dimension is at 15～20mm, and length is the machine-made stick of 450～500mm.
3, with kiln process charcoal is processed in the cracking of clavate fuel heat, required to use the baking kiln of building at clayed ground, temperature reaches 280 ℃, but the ability oxygen feeding stop.
(4), be cooled to room temperature packing warehouse-in
The right material temperature degree of biomass compact after the compression moulding is at 70～110 ℃; The temperature of charcoal reaches 280 ℃ during the thermo-cracking kiln discharge.All need in the place that the screening canopy is arranged or storehouse, be cooled to room temperature with natural wind, pressure wind.Storehouse should have good ventilation, moistureproof facility.Particle, block compact fuel can be packed, and excellent type charcoal is used the waterproof cloth parcel, refill the case outward transport.
The advantage of this patent is:
(1), with rubber seed hull this at discarded traditionally biomass material, be converted into the biofuel of dense form, both improved the utility value of rubber seed fruit; Protect again environment, reduced the destruction to ecology.Particularly in China rubber establishing in large scale area, generally all lacking solid fuel, is to be fuel by the bavin firewood traditionally, and its realistic meaning is just more outstanding and important.
(2), highlight the importance that raw material silo is preserved, change the bad habit that Some Domestic enterprise ignores the production details aborning.Not only can do industry greatly, more can run business into strong one industry.Compare with air storage keeping raw material, utilize warehouse storage keeping raw material, can reduce at least by 13% power loss.
(3), in the compression moulding process, add an amount of cakingagent, can reduce the wearing and tearing of pressing device, prolong the work-ing life (this is particularly important to screw-type extrusion equipment) of the key parts such as compression screw rod and sleeve, also save simultaneously the electric heater unit of screw extrusion press, thereby reduced the production cost of product; Increase simultaneously product strength, reduced the fragmentation in transportation, storage, the use, improved the quality of fuel.
(4), after the compression moulding, can reach following index with the compact fuel of rubber seed hull production and see Table 1:
(5), biomass compact fuel purposes: particle, block fuel can be the clean solid fuel that industrial generation and boiler, civilian life staying idle at home provide the environmental protection high-quality; To the thermo-cracking of rod-type fuel element by kiln process, charcoal.Charcoal has extensive and important purposes, and except domestic fuel, charcoal can make to hinder flux, is used for metallurgical, STEELMAKING PRODUCTION; Work oozes the charcoal agent, can improve steel components surface hardness and wear resistance; With saltpetre and sulphur preparation black powder; Can be made into graphite, make solid lubricant, and Graphite Electrodes; Make gac and be used for a field such as chemical industry, medicine, environmental protection, such as decolouring and the purification of the purification of chemical agent, sugar, fatty deodorizing, gas delivery, filtering out harmful matter, make smoke mask etc.
Table 1: biofuel technical parameter
Annotate: the special low ash content steam coal ash content of national standard is: the thermal value of one ton of mark of≤10.0% (GB/T17608) coal is: 29.3MJ/kg
Because rubber seed hull three major polymers: cellulose the same as other biomass material, half fiber and xylogen form.And the content of carbon, hydrogen and oxygen has reached 99% (massfraction) in dried rubber seed, is the principal element that burning produces heat.And rubber seed hull must be peeled off with rubber seed under drying conditions, at this time the water content of rubber seed hull is 10～12%, if in time rubber seed hull is stored in keeping in the good warehouse of condition, can effectively reduce the loss of the compositions such as carbon, hydrogen, oxygen, guarantee the fuel mass that manufacture goes out.Moisture is important key factor in the compact fuel moulding, and moisture content pressed charge moulding between 10～15% time is to be fit to the most.
In the moulding of biomass compact fuel, keep certain shape and intensity in order to make the fuel after the compressed moulding, need to there be an amount of cakingagent that loose raw material is binded moulding under pressure.Normal conditions are to take following methods:
1, the cakingagent that utilizes the xylogen in the raw material to become raw material itself to have at high temperature (120～250 ℃) melting, and its temperature is during up to 300 ℃, and stickiness is the highest.But high temperature has also brought negative problem, has most importantly strengthened plant capacity consumption, has increased product cost; Shaped fuel at high temperature easy spontaneous combustion has also stayed larger hidden danger for safety in production.
2, the extra cakingagent that adds when combust molding.The cakingagent that is used for the biomass compact fuel moulding has: inorganic binder, organic binder and fiber-like cakingagent three major types.Use inorganic binder, such as clay, cement, water glass etc., can play certain cohesive action, but this class cakingagent has increased the ash content of fuel, reduced calorific value, the weak effect of use.And organic cakingagent petroleum tar, pitch, resin, paper waste, starch etc. also have good cohesive action, exist simultaneously combustion product gases large, easily the defective of the moisture absorption.The quantity discharged of objectionable impurities increases in the time of generally all can making burning with fiber-like cakingagents such as paper wastes, particularly sulfide SO
2Surpass 150mg/m
3, cause larger infringement to surrounding enviroment.
Through long-term experiment, it is the moulding cakingagent of rubber seed hull compact fuel that this patent proposes to adopt the organic binder that has more environmental protection characteristic.They can be a kind of in following several material:
1, wood tar oil.Wood tar oil is the kiln gas in the carbonization process to be cooled off reclaim a kind of black viscous liquid that obtains.The main component of wood tar oil is wood creosote, also contains the organic compound such as hydro carbons, acids, phenols.Have the advantages such as soften is good, ageing-resistant, high temperature resistant.Also can be used for fuel, quality is equal to oil fuel.
2, vegetables oil " oil foot ".Plant " oil foot ", the tankage that in refining the Vegetable oil lipoprotein processes such as soybean, vegetable seed, cottonseed, produce exactly.Similarly rubber seed also will produce " oil foot " in the oil expression process.Past " oil foot " is used as offal treatment always, is not well utilized, and has not only caused the wasting of resources, also causes environmental pollution.The main component of plant " oil foot " is stearic acid, multiple mixed fatty acid and a small amount of oil plant raw material.By the oil foot that squeezing, filter type obtain, stickiness is large, and significant lubricated, cohesive action is arranged, and do not contain any chemical additive, also be the good merchantable brand in the cakingagent.
3, lac (shellac).Lac is by the pure natural resin of living in the tachardia lacca secretion on the host plant, have that cementability is strong, insulation, moistureproof, film smooth, bright, the features such as stable chemical nature, and nontoxic, tasteless, nontoxic pair is residual, is unique thermosetting natural resin.
4, molasses.Molasses are byproducts of sugar industry, measure large and inexpensive.
Embodiment
The below further specifies flesh and blood of the present invention with example, but content of the present invention is not limited to this.
" processing method of a kind of rubber seedcake (dregs of rice) preparation protein fodder " (State Intellectual Property Office's patent of invention publication number: CN101194669) patent that the present invention uses the inventor herein to have, " microwave treatment and extruding puffing synthesis method prepare the processing method of rubber seed oil " (State Intellectual Property Office's patent of invention publication number: CN 101597542A) patent, the rapid drying of the virgin rubber seed fruit of adopting, the special technologies such as separation of hull from kernel, the preparation technology of rational Application compact fuel again, then the annual number that can obtain reaches 19.5MJ/kg in the net calorific value of hundreds of thousands of ton and even tons up to a million, is about the rubber seed hull compact fuel of mark calorific value of coal 29.3MJ/kg 66 percent.
The right material temperature degree of biomass compact after the compression moulding is at 70～110 ℃; The charcoal temperature reaches 280 ℃ during the thermo-cracking kiln discharge.All need to be with natural wind or pressure wind cooling room temperature in the place that the screening canopy is arranged or storehouse.Storehouse should have good ventilation, moistureproof facility.Particle, block compact fuel can be packed, and excellent type charcoal is used waterproof cloth, paper bag is wrapped up in, and refill the case outward transport.
Embodiment 1 takes out rubber seed hull 50KG from the warehouse (process breaks away from benevolence before depositing the warehouse in, moisture is 12～17%), put into beater grinder and be crushed to 1mm, change the simultaneously cakingagent 1.25KG that is in harmonious proportion with ethanol and lac of admixture (press massfraction 2.5%) of stirrer over to, after fully stirring, on ring mode pressure roller granule-forming machine, with the rotating speed of 175r/minr, be that 2 condition presses down granulation shape fuel at compression ratio, to be cooled to room temperature packing warehouse-in.
Embodiment 2 takes out rubber seed hull 100KG from the warehouse (process breaks away from benevolence before depositing the warehouse in, moisture is 12～17%), put into beater grinder and be crushed to 1.2mm, change the simultaneously modulated molasses cakingagent 3KG that makes of admixture (press massfraction 3%) of stirrer over to, after fully stirring, on ring mode pressure roller granule-forming machine, with the rotating speed of 220r/minr, be that 3.5 condition presses down granulation shape fuel at compression ratio, to be cooled to room temperature packing warehouse-in.
Embodiment 3 takes out from the warehouse through breaking away from the benevolence skin, the rubber seed hull 75KG of moisture between 10～16%, putting into beater grinder is crushed to 1.5mm and changes stirrer over to, " oil foot " cakingagent 3KG of the modulated rubber seed oil that makes of admixture (press massfraction 4%) simultaneously, after fully stirring, insert in the screw expeller, with the rotating speed of screw rod main shaft 475r/min, the pressure of 60MPa, extruding growth 550mm, diameter 50mm are the hexagon mechanism carbon rod of 20mm with diameter of bore.
Embodiment 4 takes out from the warehouse through breaking away from the benevolence skin, the rubber seed hull 120KG of moisture between 10～16%, putting into beater grinder is crushed to 1.5mm and changes stirrer over to, the modulated wood tar oil cakingagent 6KG that makes of admixture (press massfraction 5%) simultaneously, after fully stirring, insert in the screw expeller, with the rotating speed of screw rod main shaft 650r/min, the pressure of 40MPa, extruding growth 500mm, diameter 55mm are the hexagon mechanism carbon rod of 15mm with diameter of bore.
The clavate fuel of above-mentioned gained, further charcoal is processed in charing as required, then need adopt kiln process to carry out thermo-cracking and process, and requires to use the baking kiln of building at clayed ground, and temperature reaches 280 ℃, but the ability oxygen feeding stop is the charcoal finished product after the cooling.
Claims (4)
1. method for preparing biomass compact fuel with rubber seed hull is characterized in that containing following steps:
(1), the virgin rubber seed really done rapid drying, separation of hull from kernel and processes after, collect and be stored in spiral steel plate vertical silo, rubber seed hull raw material water content is controlled at 10～15%, temperature≤22 ℃ are piled under high≤6m condition and are stacked storage and custody;
(2), pulverize: rubber seed hull is put into pulverizer processing pulverize, grinding particle size is 1～1.5mm;
(3), compression moulding: the rubber seed hull after will pulverizing is suppressed the formation biomass compact fuel in two ways, the one, utilize the roller molding mode that raw material is pressed into particle, patch fuel; To utilize the screw extrusion mode that raw material is pressed into rod-type fuel element in addition;
(4), as required, or with kiln process to clavate fuel heat cracking processing charcoal, require to use the baking kiln of building at clayed ground, temperature reaches 280 ℃, but oxygen feeding stop;
(5), be cooled to room temperature packing warehouse-in;
Described roller moulding is: the raw material after will pulverizing, in the scope of water ratio 12～17%, add the cakingagent of mass percent≤3%, after stirring through stirrer, put into the horizontal ring die forming machine, at rotating speed 140～220r/min, the ratio of the useful length of pressing mold and die throat diameter is compression ratio, under compression ratio 1.5～4 processing condition, obtains diameter and is being no more than the granular fuel of 50mm in 6-12mm length, adjust compression ratio, can get patch fuel;
Described spiral extrusion shaping is: the raw material after will pulverizing, add the cakingagent of mass percent≤5%, in the scope of water ratio 10～17%, after the stirrer stirring, put into screw extrusion press, at forming pressure 40～75MPa, under the processing condition of the screw rod speed of mainshaft 450～800r/min, be pressed into the hollow circle or the hexagon barred body that are yellow black, external diameter is at 50～55mm, internal orifice dimension is at 15～20mm, and length is the machine-made stick of 450～500mm.
2. the method for preparing biomass compact fuel with rubber seed hull according to claim 1, it is characterized in that: add organic binder in the rubber seed hull after pulverizing, organic binder is: wood tar oil, vegetables oil " oil foot ", lac or molasses, the mass percent of the cakingagent that adds is between 3～5%.
3. according to the method for preparing biomass compact fuel with rubber seed hull claimed in claim 1, it is characterized in that: the described room temperature packing warehouse-in that is cooled to is: being cooled to room temperature all need to be with natural wind or pressure wind cooling room temperature in the place that the screening canopy is arranged or storehouse; The storehouse of warehouse-in should have good ventilation, moistureproof facility; Particle, block compact fuel can be packed, and excellent type charcoal is used waterproof cloth, paper bag is wrapped up in, and refill the case outward transport.
4. the method for preparing biomass compact fuel with rubber seed hull according to claim 1 is characterized in that: describedly replace in spiral steel plate vertical silo available dedicated warehouse, special-purpose warehouse is: terrace is intact, solid, smooth, and lays effective moisture-proof barrier; Wall is intact, firm, inboard level and smooth, the high 6m of bearing wall, the damp proof insulation section will be laid damp proof material, exterior wall is coated with light color, guarantees to accomplish: on do not leak, lower not damp, ventilate, cover, waterproof.
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| BR112013031951A2 (en) * | 2011-06-23 | 2016-12-20 | Commw Scient Ind Res Org | process and mechanism for continuous production of densified charcoal |
| CN102676198B (en) * | 2011-12-29 | 2015-03-11 | 新奥科技发展有限公司 | Method for preparing bio-oil and/or pyrolytic gas by pyrolysis of biomass |
| CN102676259A (en) * | 2012-04-18 | 2012-09-19 | 吉林大学 | Preparation method and novel using methods of carbon monolith binder |
| CN112410091A (en) * | 2020-10-10 | 2021-02-26 | 北京林业大学 | Biomass compact forming method |
| CN114693189B (en) * | 2022-05-31 | 2022-09-23 | 南京信息工程大学 | Plate body turning and positioning method and system, storage medium and computing equipment |
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|---|---|---|---|---|
| CN101012404A (en) * | 2007-02-07 | 2007-08-08 | 蔡文树 | Biomass granular fuel and producing method thereof |
| CN101139538A (en) * | 2007-10-23 | 2008-03-12 | 张百良 | Straw rod-shaped compact formed fuel and method for manufacturing same |
| CN101323787A (en) * | 2008-07-29 | 2008-12-17 | 王新里 | Method for comprehensive utilization of rubber seed |
| CN101555429A (en) * | 2009-05-05 | 2009-10-14 | 农业部规划设计研究院 | Processing method for biomass solid molding fuel |
| CN101597542A (en) * | 2008-06-03 | 2009-12-09 | 周晓南 | Microwave treatment and extruding puffing synthesis method prepare the processing method of rubber seed oil |
-
2010
- 2010-01-27 CN CN 201010101427 patent/CN101824348B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012404A (en) * | 2007-02-07 | 2007-08-08 | 蔡文树 | Biomass granular fuel and producing method thereof |
| CN101139538A (en) * | 2007-10-23 | 2008-03-12 | 张百良 | Straw rod-shaped compact formed fuel and method for manufacturing same |
| CN101597542A (en) * | 2008-06-03 | 2009-12-09 | 周晓南 | Microwave treatment and extruding puffing synthesis method prepare the processing method of rubber seed oil |
| CN101323787A (en) * | 2008-07-29 | 2008-12-17 | 王新里 | Method for comprehensive utilization of rubber seed |
| CN101555429A (en) * | 2009-05-05 | 2009-10-14 | 农业部规划设计研究院 | Processing method for biomass solid molding fuel |
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