CN100455965C - Biomass drying method and plate type biomass dryer - Google Patents
Biomass drying method and plate type biomass dryer Download PDFInfo
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- CN100455965C CN100455965C CNB2004100103220A CN200410010322A CN100455965C CN 100455965 C CN100455965 C CN 100455965C CN B2004100103220 A CNB2004100103220 A CN B2004100103220A CN 200410010322 A CN200410010322 A CN 200410010322A CN 100455965 C CN100455965 C CN 100455965C
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Abstract
The present invention relates to a biomass drying method and a plate type biomass drier, which belongs to the technical field of the recycling and the pretreatment of biomass. The present invention utilizes a special device, namely the plate type biomass drier, biomass material is dried when moving towards a material discharging hole in a closed box body by supplying high-temperature gas in the closed box body, and the material is simultaneously heated and dried by leading out moisture generated during drying. The material makes meandering movement in the closed box body, and adopts a heat transferring method with the combination of radiant heat transfer, convection heat transfer and conduction heat transfer. The present invention has the advantages of high drying efficiency and good drying effect.
Description
Technical field
The invention belongs to living beings regeneration preconditioning technique field, particularly a kind of to the withering biomass drying method of living beings such as agricultural crop straw and special equipment-board-like living beings drying machine thereof.
Background technology
Biomass resource comprises agricultural waste material, yule logs and forestry waste, fowl and animal excrement, biologic garbage etc., ignore some little biomass energy resource such as industrial wastewater and waste residue etc., only agricultural waste material, yule logs and forestry waste, fowl and animal excrement and biologic garbage are four, can the exploitation amount just quite big, about 4.37 hundred million tons of oil equivalents.Agricultural crop straw is the biomass energy resource of China's maximum, along with rural economic development, and China's agricultural crop straw output cumulative year after year, average annual growth rate 2.33%.To nineteen ninety-five, China's agricultural crop straw output reaches 6.04 hundred million tons, amounts to more than 300,000,000 ton of standard coal.Wherein, reach 2.24 hundred million tons with maize straw output maximum.Biomass energy is one of main energy sources of China (especially in the rural area), China's countryside biomass energy source utilizes mode based on the directly burning of traditional cooking stove, the thermal efficiency only about 10%, biomass energy accounts for more than 70% of fuel in China's rural areas consumption figure before 1979.Along with rural economic development, farmers' income increases, life in the countryside increases very fast with commercial energy (coal, liquefied gas etc.) ratio in the energy, a large amount of agricultural crop straws are abandoned in the field arbitrarily to be burned, many regional agricultural crop straw burning amounts have accounted for 60% of total output, not only wasted resource, and the severe contamination air, the living environment of harm humans.Meanwhile, global energy crisis is also in progressively aggravation.For addressing the above problem, developing biomass energy energetically just becomes the task of top priority.By biomass gasifying furnace agricultural crop straw is carried out gasifying electricity generation, be to utilize the effective way of agricultural crop straw on a large scale to the electric energy conversion, because the agricultural crop straw water content is higher, have only by passing through large-scale fluidized bed gasification furnace gasification after the preliminary treatment, the living beings drying is one of key technology in the preconditioning technique.What the agricultural crop straw drying adopted the earliest also is that effective method is the natural drying method the most, and this method does not need equipment investment.But this method takes up an area of, time-consuming, also can influence proportion of crop planting in next if stay the untimely removing in field in season.
Summary of the invention
The object of the invention is to provide a kind of can carry out dry drying means and special equipment-board-like living beings drying machine thereof to living beings such as agricultural crop straws fast.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: biomass drying method, in the casing of sealing, blast high-temperature gas, make biomass material in the casing of sealing, in the discharging opening motion process, obtain drying, draw the moisture that produces in the dry run simultaneously.
Material adopts full of twists and turns motion mode in closed box, the heat transfer type that adopts radiant heat transfer to combine with convection current, conduction heat transfer in the dry materials process.
High-temperature gas is handled through voltage stabilizing before entering casing.
Board-like living beings drying machine, comprise the insulation casing that is provided with the charging and discharging mouth, it is corresponding up and down in the casing that to be provided with some upper surfaces be the fluidic plate that plane, the uniform through hole of lower surface, side are provided with the high-temperature gas import, stagger about adjacent two fluidic plate ends, be provided with a material flat board below lower floor's fluidic plate; On the machine frame at two sides of fluidic plate end the drive that connects with driving chain is installed, the scraper parts are installed on the driving chain, drive connects with power; Casing one end is provided with wet-emitting blower.
The dull and stereotyped upper surface of fluidic plate and material both sides are provided with material baffle, and the high-temperature gas import of fluidic plate side is communicated with pressurizer tank respectively, and the pressurizer tank import is connected with the high temperature source of the gas.
The pressurizer tank cabinets cavity is attenuation gradually from top to bottom, and fluidic plate inner chamber thickness is along with reducing gradually apart from increasing with pressurizer tank.
The pressurizer tank air inlet is connected with blower cover by blast pipe, and high temperature blower is installed on the blast pipe, and blower cover covers in the burner top.
Casing is provided with access door.
The present invention adopts special equipment-board-like living beings drying machine, agricultural crop straw biomass materials such as (as maize straws) after the pulverizing is entered the casing of drying machine sealing on the superiors' fluidic plate from charging aperture, floating rule on flight chain drives the lower edge fluidic plate and travels forward, drop down onto above lower floor's fluidic plate during to this layer fluidic plate terminal, the floating rule of continuation on flight chain drives the lower edge fluidic plate and travels forward, and falls into discharging opening until the dull and stereotyped terminal of set material below lower floor's fluidic plate and discharges casing.Material directly is subjected to the conduction heating of fluidic plate in motion process, be subjected to simultaneously from the Forced Convection Heat Transfer and the radiant heat transfer of the high temperature gas flow of fluidic plate lower surface pore ejaculation, and the moisture that the material heating produces is discharged by air-introduced machine.Material is finished the heat and mass transfer process in casing, reach drying purpose.High temperature gas flow can provide by gas-firing gained high-temperature flue gas, and high-temperature flue gas is handled through the pressurizer tank voltage stabilizing before the fluidic plate in entering casing, has guaranteed that flue gas pressures is stable, and heat-transfer effect is good.Utilize the inventive method and special equipment to carry out the living beings drying, fully utilized conduction, convection current, three kinds of thermaltransmission modes of radiation, drying efficiency height (the drying machine thermal efficiency reaches 68.58%), drying effect is good; Thermal source is extensive, and available various high-temp waste gas (as boiler waste gas etc.) carry out drying operation as the heat carrier, and fuel such as also available coal, the living beings flue gas that produces of directly burning is carried out drying operation; Material adaptability is strong, and special equipment drying time, thickness of feed layer are controllable, can carry out drying to different in moisture content, variety classes material; Superior product quality, moisture unevenness is little.Floating rule on the flight chain is driving material when heating plate (fluidic plate) is gone up reach, finishes the stirring of material, and makes lower floor's material be translated into the upper strata, and upper materials is fallen lower floor.When material was fallen lower floor's heating plate (fluidic plate) by upper strata heating plate (fluidic plate), material rearranged on heating plate (fluidic plate), and the moisture unevenness of product is reduced to below 3%.
Description of drawings
Fig. 1 is a structural representation of the present invention:
Fig. 2 is an internal structure schematic diagram of the present invention
Fig. 3 is for being pressurizer tank and fluidic plate annexation schematic diagram;
Fig. 4 is the drive connection schematic diagram.
The specific embodiment
Embodiment, board-like living beings drying machine, comprise the insulation casing 3 that is provided with charging aperture 1, discharging opening 2, it is the fluidic plate 4 that the uniform through hole 4-1 of plane, lower surface, side are provided with the high-temperature gas import that casing 3 interior correspondences up and down are provided with 3 upper surfaces, staggers about adjacent two fluidic plate 4 ends.Fluidic plate 4 upper surface both sides are provided with material baffle 17, and fluidic plate 4 side high-temperature gas imports are communicated with pressurizer tank 6 respectively, and casing 3 one ends are provided with wet-emitting blower 11.Pressurizer tank 6 air inlets are connected with blower cover 9 by blast pipe 7, and high temperature blower 8 is installed on the blast pipe 7, and blower cover 9 covers in burner 10 tops.On the fluidic plate 4 end machine frame at two sides drive 16 that connects with driving chain 15 is installed, floating rule 18 is installed on the driving chain 15, drive 16 connects with reducing motor 12 by chain 13.Casing 3 is provided with access door 14.19 is set material flat board below lower floor's fluidic plate, and both sides are provided with material baffle above it.The attenuation gradually from top to bottom of pressurizer tank 6 cabinets cavities, fluidic plate 4 inner chamber thickness reduce gradually along with increasing with pressurizer tank 6 distances, and this design helps the operation and the material heating of high temperature gas flow.
Utilize the said equipment to carry out in the living beings dry run, material falls on the superiors' fluidic plate after charging aperture enters casing, drive and stir reach down at floating rule that driving chain is with and drop down onto lower floor's fluidic plate from this fluidic plate terminal, set material flat board terminal is discharged by discharging opening below the orlop fluidic plate at last.Material is drawn the moisture that produces in the dry run simultaneously obtain drying by radiant heat transfer with the heat transfer type that convection current, conduction heat transfer combine in the discharging opening motion process.
Claims (5)
1, board-like living beings drying machine, comprise the insulation casing that is provided with the charging and discharging mouth, it is characterized in that, it is corresponding up and down in the insulation casing that to be provided with some upper surfaces be the fluidic plate that plane, the uniform through hole of lower surface, side are provided with the high-temperature gas import, stagger about adjacent two fluidic plate ends, be provided with a material flat board below lower floor's fluidic plate; On the machine frame at two sides of fluidic plate end the drive that connects with driving chain is installed, the scraper parts are installed on the driving chain, drive connects with power; Insulation casing one end is provided with wet-emitting blower.
2, drying machine as claimed in claim 1 is characterized in that, the dull and stereotyped upper surface of fluidic plate and material both sides are provided with material baffle, and the high-temperature gas import of fluidic plate side is communicated with pressurizer tank respectively, and the pressurizer tank import is connected with the high temperature source of the gas.
3, drying machine as claimed in claim 1 or 2 is characterized in that, the pressurizer tank cabinets cavity is attenuation gradually from top to bottom, and fluidic plate inner chamber thickness is along with reducing gradually apart from increasing with pressurizer tank.
4, drying machine as claimed in claim 3 is characterized in that, the pressurizer tank air inlet is connected with blower cover by blast pipe, and high temperature blower is installed on the blast pipe, and blower cover covers in the burner top.
5, drying machine as claimed in claim 4 is characterized in that, the insulation casing is provided with access door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100103220A CN100455965C (en) | 2004-06-07 | 2004-06-07 | Biomass drying method and plate type biomass dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100103220A CN100455965C (en) | 2004-06-07 | 2004-06-07 | Biomass drying method and plate type biomass dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707209A CN1707209A (en) | 2005-12-14 |
| CN100455965C true CN100455965C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100103220A Expired - Fee Related CN100455965C (en) | 2004-06-07 | 2004-06-07 | Biomass drying method and plate type biomass dryer |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722575B (en) * | 2008-10-31 | 2012-04-25 | 柴标 | Partition wall batten conveying line and drying method thereof |
| CN101968302A (en) * | 2010-10-31 | 2011-02-09 | 冯益安 | Method for quickly drying biomass by using wind power at normal temperature |
| CN102927804B (en) * | 2012-11-06 | 2014-11-05 | 赵忠仁 | Lignite drying machine |
| CN109883175B (en) * | 2019-02-27 | 2020-05-12 | 燕山大学 | Composite biomass dryer with scraper and turbine |
| CN111964414A (en) * | 2020-09-01 | 2020-11-20 | 北京首创污泥处置技术有限公司 | Material drying equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB807083A (en) * | 1954-07-06 | 1959-01-07 | Bernard Pierre Messager | Method and apparatus for drying materials difficult to handle |
| CN2078429U (en) * | 1990-11-01 | 1991-06-05 | 河南省科学院能源研究所 | Dryer by steamed far infra-red ray hot plate |
| JPH0670680A (en) * | 1992-08-28 | 1994-03-15 | Kawasaki Kiko Co Ltd | Dryer for producing green tea |
| CN2192853Y (en) * | 1993-12-27 | 1995-03-22 | 沈阳北方干燥设备研制中心 | Rotary airflow smash drying machine |
| CN2240699Y (en) * | 1995-06-26 | 1996-11-20 | 河南省科学院能源研究所 | Plate type drying machine |
| CN2480789Y (en) * | 2000-07-26 | 2002-03-06 | 文思仁 | Circular type caterpillar conveyer dryer box |
| CN2715075Y (en) * | 2004-06-07 | 2005-08-03 | 河南省科学院能源研究所 | Plate type biomass drier |
-
2004
- 2004-06-07 CN CNB2004100103220A patent/CN100455965C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB807083A (en) * | 1954-07-06 | 1959-01-07 | Bernard Pierre Messager | Method and apparatus for drying materials difficult to handle |
| CN2078429U (en) * | 1990-11-01 | 1991-06-05 | 河南省科学院能源研究所 | Dryer by steamed far infra-red ray hot plate |
| JPH0670680A (en) * | 1992-08-28 | 1994-03-15 | Kawasaki Kiko Co Ltd | Dryer for producing green tea |
| CN2192853Y (en) * | 1993-12-27 | 1995-03-22 | 沈阳北方干燥设备研制中心 | Rotary airflow smash drying machine |
| CN2240699Y (en) * | 1995-06-26 | 1996-11-20 | 河南省科学院能源研究所 | Plate type drying machine |
| CN2480789Y (en) * | 2000-07-26 | 2002-03-06 | 文思仁 | Circular type caterpillar conveyer dryer box |
| CN2715075Y (en) * | 2004-06-07 | 2005-08-03 | 河南省科学院能源研究所 | Plate type biomass drier |
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| Publication number | Publication date |
|---|---|
| CN1707209A (en) | 2005-12-14 |
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