CN104962335A - Biomass briquette preparation method - Google Patents
Biomass briquette preparation method Download PDFInfo
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- CN104962335A CN104962335A CN201510279883.9A CN201510279883A CN104962335A CN 104962335 A CN104962335 A CN 104962335A CN 201510279883 A CN201510279883 A CN 201510279883A CN 104962335 A CN104962335 A CN 104962335A
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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 present invention discloses a biomass briquette preparation method, which comprises: carrying out crushing and screening on lignin-containing agricultural production and industrial production waste, drying, reducing the water content, carrying out impurity removing and dust removing, carrying out roller pressing molding, and carrying out cooling packaging to obtain the biomass solid fuel. According to the present invention, the raw material variety is more, the production process is simple, any additives are not required, the preparation is completely dependent on the high-pressure extrusion molding of the molding machine, the cost is low, emission of waste residue, waste gas and waste water during the production is not generated so as not to cause the secondary pollution, and the method is suitable for promotion application.
Description
Technical field
The present invention relates to solid fuel and manufacture field, particularly a kind of preparation method of biomass molding fuel.
Background technology
Clean energy development and Global climate change are the focuses that international community is paid close attention to jointly, in the whole world industrialization course of more than 200 year, developed country only less than 1,000,000,000 populations realizes modernization, but global resources and ecology have paid heavy cost for this reason, in this context, be that many countries of representative increase the attention and input that utilize biomass energyization all one after another with America and Europe.
For being advanced the exploitation of biomass by planning of science activities, department of Chinese Government and scientific research institutions, and international body has successively carried out planning and prospective research work to the development and utilization of Chinese biomass.And the agricultural biomass Energy resources that to be China rural area important.At present, in fuel in China's rural areas consumption structure, produce and life with energy ratio be respectively 44% and 56%, in producting energy, coal accounts for more than 50%, and in life energy, biomass account for 52%, and coal accounts for 34%.In fuel in China's rural areas consumption except there is unreasonable structure, also face the problems such as commercial energy resource effective supply is not enough, energy utilization rate is low, energy infrastructure construction imperfection, and based on above-mentioned background, Biomass Briquette Technologies and industry development are a kind of strategic selections for a long time.
Biomass molding fuel converts that energy density is high, easy to use, the shaped fuel of high-efficiency environment friendly to by shaping for the compressed biomass of agriculture waste.In recent years, people also studied the much biological substance energy and high efficiency briquetting process thereof, material due to machine-shaping is high microsteping material, and raw material is loose, size and material variation, therefore when grain forming, difficulty is pressed into compact grain shape, need containing adhesive component, as Chinese patent: CN201210328869.X, a kind of biomass fuel of good moldability, it is characterized in that, this biomass fuel is mixed with additive by wood chip powder, additive has high viscosity, the high clay that adsorptive power is strong, by wood chip and additive in 9: 1 ratio mix, make the reproducible biomass fuel not containing any objectionable impurities, although there is not the problem of environmental pollution in burning, but above-mentioned additive needs through soaking, grinding, dehydration, surface active, pulverize parcel, the techniques such as allotment are made through scientific formula and special processing process, type of feed is single, there is complex process, the feature that cost is high.
Summary of the invention
The object of the present invention is to provide a kind of without the need to additive, adopt formed at normal temp technique, solve traditional technology type of feed single, complex process, the feature that cost is high.
For achieving the above object, technical scheme of the present invention is: the preparation method of biomass molding fuel, comprises the following steps:
A, raw material pulverizing, screening: using pulverizer collected biomass material to be ground into diameter is particulate state or Powdered within the scope of 1 ~ 3mm, sieve and sieve, oversize screening out to be pulverized again or as fuel feed drying plant, afterwards by Belt Conveying to drying plant;
B, drying: adopt drying plant to carry out drying to the raw material after pulverizing, make the moisture control of material in the data area of processing requirement by the temperature controlling inlet amount and drying plant;
C, removal of impurities, dedusting: dried material enters in knot screen through the traction of blower fan, remove impurity, then enter cyclonic separator, send into forming step afterwards, and the airborne dust that cyclonic separator produces enters the unified recovery of sack cleaner;
D, shaping: the raw material after removal of impurities, dedusting enters in shaped device, dependence pressure roller and the fricative heat between mould and raw material soften the xylogen in raw material, raw material is cohered compression moulding, the stick solid fuel of the geometric diameter 6 ~ 10mm of the product after shaping, length 5 ~ 10mm;
E, cooling packing: the product after shaping is cooled to less than 35 DEG C by cooling apparatus, then unitizing, obtain biomass solid fuel product.
Compared with prior art, beneficial effect of the present invention has: (1) relies on pressure roller and mould relative movement to roll through pulverizing dried raw material; Rely on the heat of friction rolling material and produce, material softened and binds, finally extruding in mould molding hole.(2) shaping biomass fuel pellet quality is closely knit, and fuel burn-off rate is high, reaches as high as more than 98%, can not produce other poisonous and harmful elements, and the ashes after burning can use as organic potassic fertilizer.(3) add the step of dedusting removal of impurities, effectively can reduce the dust concentration of production plant, occur simultaneously, to decrease the sickness rate of workman's occupational illness in the potential safety hazard reducing the dust explosion in producing; The use of knot screen avoids impurity etc. and brings impact to subsequent step; Raw material type of the present invention is many, and production technique is simple, without the need to any additive, relies on forming machine high-pressure extrusion shaping, with low cost completely, without waste residue, waste gas, discharge of wastewater simultaneously in producing, can not form secondary pollution, be applicable to apply.
As this programme further preferably, the raw material of biomass molding fuel is be rich in the agriculture production of xylogen and industrial waste, comprises the richnesses such as maize straw, wheat straw, straw, Pericarppium arachidis hypogaeae, corn cob, cotton stalk, soybean stalk, husk, weeds, branch, leaf, sawdust, bark, the dregs of a decoction, tea seed episperm, vinasse, bacterium bag; The raw material used comes from agriculture production and industrial waste, and the total class of raw material is many, and cheap and easy to get; While utilization of waste material, reducing the utilization ratio of primary energy source by making biomass fuel, effectively alleviating the problem of commercial energy resource effective supply deficiency.
As this programme further preferably, be provided with deironing apparatus between described step a → b and step b → c, remove the metal in raw material, in order to avoid abrasion machine, or blocking pipe, machine is broken down, has a strong impact on normal production.
As this programme further preferably, after described step b drying, the water ratio of raw material is between 12 ~ 15%, and water ratio is too high is too lowly all unfavorable for compressed moulding.Raw aqueous rate is too high, and moisture easily forms sealing coat between particle, interlayer cannot be combined closely, easy plugging hole; Water ratio is too low, is unfavorable for plasticizing and heat transmission, the not easy-formation of xylogen.Water ratio general requirement is between 12 ~ 15%.Energy transmission of pressure on the one hand, have the effect of lubricant on the other hand, assisting ion is filled mutually, chimeric, promotes material forming.
As this programme further preferably, described steps d molding device is pressure roller compaction type molding device, specifically comprises ring mode molding device and flat-die type powdered molding device, ring mode molding device has good forming effect, suitability is wide, and production capacity is high, the feature that automatization level is high; The processing requirements of flat-die type powdered molding device to raw material is low, and maintenance of the equipment is easy, equipment maneuverability, and structure is simple, maintains easily.
As this programme further preferably, the outlet of described steps d molding device is provided with screening plant, can screen out powder, or the product that particle is little, size does not reach requirement, make the product that obtains purer, substandard product is collected through collector and is re-started processing.
Specifications parameter and the performance index of table 1 for using the present invention to produce right biomass granule fuel:
Table 2 is that the economic target between biomass fuel of the present invention, heavy oil, Sweet natural gas, Sweet natural gas compares:
Embodiment
Embodiment 1: be the raw material of 50% for water ratio:
Use pulverizer by biomass material be ground into the particulate state or Powdered that diameter is 3mm, sieve and sieve, oversize screening out to be pulverized again or as fuel feed drying plant, afterwards by Belt Conveying to drying plant, use the belt that effective width is 40mm, raw thickness is 3mm, and the rotating speed of feed belt is 350r/min; Adopt drying plant to carry out drying to the raw material after pulverizing, the rotating speed of drying plant is 700r/min, cylinder inner drying temperature 320 DEG C, barrel temperature 400 DEG C, makes the water ratio of raw material be 12%.
Dried material enters rockover remover through the traction of blower fan, removes the impurity such as stone, then enters cyclonic separator, send into forming step afterwards, and airborne dust enters sack cleaner and unifies recovery and be transported to region to be processed; The raw material removed after impurity enters flat-die type powdered molding device, pressure is 400t, dependence pressure roller and the fricative heat between mould and raw material soften the xylogen in raw material, and raw material is cohered compression moulding, and the product after shaping is the stick solid fuel of diameter 6mm × length 10mm; To cooling apparatus, product is cooled to less than 35 DEG C by belt-conveying after screening, then unitizing, obtains biomass solid fuel product.
Embodiment 2: be the raw material of 60% for water ratio:
Use pulverizer by biomass material be ground into the particulate state or Powdered that diameter is 3mm, sieve and sieve, oversize screening out to be pulverized again or as fuel feed drying plant, afterwards by Belt Conveying to drying plant, use the belt that effective width is 40mm, raw thickness is 2.5mm, and the rotating speed of feed belt is 330r/min; Adopt drying plant to carry out drying to the raw material after pulverizing, the rotating speed of drying plant is 600r/min, cylinder inner drying temperature 330 DEG C, barrel temperature 410 DEG C, makes the water ratio of raw material be 13%.
Dried material enters rockover remover through the traction of blower fan, removes the impurity such as stone, then enters cyclonic separator, send into forming step afterwards, and airborne dust enters sack cleaner and unifies recovery and be transported to region to be processed; The raw material removed after impurity enters flat-die type powdered molding device, pressure is 400t, dependence pressure roller and the fricative heat between mould and raw material soften the xylogen in raw material, and raw material is cohered compression moulding, and the product after shaping is the stick solid fuel of diameter 6mm × length 10mm; To cooling apparatus, product is cooled to less than 35 DEG C by belt-conveying after screening, then unitizing, obtains biomass solid fuel product.
Embodiment 3: be the raw material of 70% for water ratio:
Use pulverizer by biomass material be ground into the particulate state or Powdered that diameter is 3mm, sieve and sieve, oversize screening out to be pulverized again or as fuel feed drying plant, afterwards by Belt Conveying to drying plant, use the belt that effective width is 40mm, raw thickness is 2mm, and the rotating speed of feed belt is 300r/min; Adopt drying plant to carry out drying to the raw material after pulverizing, the rotating speed of drying plant is 500r/min, cylinder inner drying temperature 340 DEG C, barrel temperature 420 DEG C, makes the water ratio of raw material be 15%.
Dried material enters rockover remover through the traction of blower fan, removes the impurity such as stone, then enters cyclonic separator, send into forming step afterwards, and airborne dust enters sack cleaner and unifies recovery and be transported to region to be processed; The raw material removed after impurity enters flat-die type powdered molding device, pressure is 400t, dependence pressure roller and the fricative heat between mould and raw material soften the xylogen in raw material, and raw material is cohered compression moulding, and the product after shaping is the stick solid fuel of diameter 6mm × length 10mm; To cooling apparatus, product is cooled to less than 35 DEG C by belt-conveying after screening, then unitizing, obtains biomass solid fuel product.
Table 3 is sample detection data:
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; without departing from the inventive concept of the premise; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (6)
1. the preparation method of biomass molding fuel, is characterized in that: comprise the following steps:
A, raw material pulverizing, screening: using pulverizer collected biomass material to be ground into diameter is particulate state or Powdered within the scope of 1 ~ 3mm, sieves and sieves, out pulverize oversize screening or as fuel feed drying plant again;
B, drying: adopt drying plant to carry out drying to the raw material after pulverizing, make the moisture control of material in the data area of processing requirement by the temperature controlling inlet amount and drying plant;
C, removal of impurities, dedusting: dried material enters knot screen through the traction of blower fan, remove impurity, then enter cyclonic separator, send into forming step afterwards, and the airborne dust produced in cyclonic separator enters sack cleaner and unifies recovery and be transported to region to be processed;
D, shaping: the raw material after removal of impurities, dedusting enters in shaped device, dependence pressure roller and the fricative heat between mould and raw material soften the xylogen in raw material, raw material is cohered compression moulding, the stick solid fuel of the geometric diameter 6 ~ 10mm of the product after shaping, length 5 ~ 10mm;
E, cooling packing: the product after shaping is cooled to less than 35 DEG C by cooling apparatus, then unitizing, obtain biomass solid fuel product.
2. the preparation method of biomass molding fuel according to claim 1, is characterized in that: the raw material of described biomass molding fuel is be rich in the agriculture production of xylogen and industrial waste.
3. the preparation method of biomass molding fuel according to claim 1, is characterized in that: be provided with deironing apparatus between described step a → b and step b → c.
4. the preparation method of biomass molding fuel according to claim 1, is characterized in that: after described step b drying, the water ratio of raw material is between 12 ~ 15%.
5. the preparation method of biomass molding fuel according to claim 1, is characterized in that: described steps d molding device is pressure roller compaction type molding device.
6. the preparation method of biomass molding fuel according to claim 1, is characterized in that: the outlet of described steps d molding device is provided with screening plant.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106118787A (en) * | 2016-06-25 | 2016-11-16 | 中北大学 | A kind of biomass molding fuel |
CN106800958A (en) * | 2016-12-23 | 2017-06-06 | 贵州安顺惠烽科技发展有限公司 | A kind of biomass fuel and preparation method thereof |
CN109370690A (en) * | 2018-11-14 | 2019-02-22 | 武威中农圣科生物质燃料有限公司 | A kind of biomass fuel processing technology |
CN110303714A (en) * | 2019-07-04 | 2019-10-08 | 杭州万知科技有限公司 | A kind of Internet of Things manufacture system of biomass fuel briquetting |
CN110499200A (en) * | 2019-07-11 | 2019-11-26 | 西安交通大学 | A kind of processing of stalk fuel and collection system and method |
CN110747031A (en) * | 2019-11-26 | 2020-02-04 | 金玖洲新能源有限公司 | Biological new energy fuel and preparation method thereof |
CN114149840A (en) * | 2021-12-15 | 2022-03-08 | 刘志刚 | Processing method of biomass compact forming fuel |
CN114207095A (en) * | 2019-08-08 | 2022-03-18 | 柏红梅 | Method for preparing solid biomass fuel |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106118787A (en) * | 2016-06-25 | 2016-11-16 | 中北大学 | A kind of biomass molding fuel |
CN106800958A (en) * | 2016-12-23 | 2017-06-06 | 贵州安顺惠烽科技发展有限公司 | A kind of biomass fuel and preparation method thereof |
CN109370690A (en) * | 2018-11-14 | 2019-02-22 | 武威中农圣科生物质燃料有限公司 | A kind of biomass fuel processing technology |
CN110303714A (en) * | 2019-07-04 | 2019-10-08 | 杭州万知科技有限公司 | A kind of Internet of Things manufacture system of biomass fuel briquetting |
CN110499200A (en) * | 2019-07-11 | 2019-11-26 | 西安交通大学 | A kind of processing of stalk fuel and collection system and method |
CN114207095A (en) * | 2019-08-08 | 2022-03-18 | 柏红梅 | Method for preparing solid biomass fuel |
CN110747031A (en) * | 2019-11-26 | 2020-02-04 | 金玖洲新能源有限公司 | Biological new energy fuel and preparation method thereof |
CN114149840A (en) * | 2021-12-15 | 2022-03-08 | 刘志刚 | Processing method of biomass compact forming fuel |
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