CN104946279B - Swinging heat stepwise biomass continuous pyrolysis equipment - Google Patents

Swinging heat stepwise biomass continuous pyrolysis equipment Download PDF

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Publication number
CN104946279B
CN104946279B CN201510291978.2A CN201510291978A CN104946279B CN 104946279 B CN104946279 B CN 104946279B CN 201510291978 A CN201510291978 A CN 201510291978A CN 104946279 B CN104946279 B CN 104946279B
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China
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pyrolysis
gas
system
chamber
heat stepwise
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CN201510291978.2A
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Chinese (zh)
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CN104946279A (en
Inventor
赵立欣
贾吉秀
姚宗路
丛宏斌
孟海波
霍丽丽
吴悠
朱本海
戴辰
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农业部规划设计研究院
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Publication of CN104946279A publication Critical patent/CN104946279A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels
    • Y02E50/14Bio-pyrolysis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10General improvement of production processes causing greenhouse gases [GHG] emissions
    • Y02P20/12Energy input
    • Y02P20/121Energy efficiency measures, e.g. energy management
    • Y02P20/122Energy efficiency measures, e.g. energy management characterised by the type of apparatus
    • Y02P20/123Motor systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10General improvement of production processes causing greenhouse gases [GHG] emissions
    • Y02P20/12Energy input
    • Y02P20/121Energy efficiency measures, e.g. energy management
    • Y02P20/122Energy efficiency measures, e.g. energy management characterised by the type of apparatus
    • Y02P20/124Boilers, furnaces, lighting or vacuum systems

Abstract

The invention discloses a kind of swinging heat stepwise biomass continuous pyrolysis equipment, the equipment is main to be made up of feed system, hothouse, pre- pyrolysis chamber, insulation pyrolysis chamber, solid and gas piece-rate system, pyrolysis gas purification separation system, gas heat regenerative system and sealing system.Being carried out continuously for pyrolytic reaction is ensured by continuous closed-type feed and discharging, rotary furnace uses high-temperature fuel gas backheat principle to provide thermal source for the pyrolysis of biomass material, pyrolysis temperature is adjusted by adjusting air inflow, dry, be pyrolyzed in advance and three parts of insulation pyrolysis while being divided into pyrolysis using the adiabatic rings of two packaged types in rotary furnace chuck, and three sections of length ratio and temperature level can be adjusted according to process requirements.

Description

Swinging heat stepwise biomass continuous pyrolysis equipment

Technical field

It is a kind of swinging heat stepwise biomass continuous pyrolysis equipment the invention belongs to field of renewable energy technology, A set of equipment of progress low temperature pyrogenation charing and pyrolysis gas separation specifically by raw material of biomass, achievable different material, The continuously carbonizing of different technology conditions.

Background technology

Charcoal be biomass organic material in anoxic or anoxybiotic environment, it is hot cracked after generation solid product.Its Aboundresources, it is widely used, the high-quality energy is can not only be used for, can be also alternatively arranged as soil conditioner, fertilizer as reducing agent and delay Release carrier and carbon dioxide sequestration agent.

At present, due to the attention studied Biomass Pyrolysis Mechanism, some more significant achievements have been generated.According to biology The continuous production of charcoal divides, and carbonization device can be divided into batch (-type) and continous way.Wherein batch (-type) includes tubular type, kiln formula and pyrolysis Autoclave, because of its design feature, it is impossible to realize continuous conveying, charing and discharging process, can only carry out batch charing, be unfavorable for industry Change and promote.And continuous biomass carbonization device can realize the continuous production of charcoal, Oil-gas Separation and collection device are installed, The continuous production of charcoal-oil-gas can be achieved.

Three kinds of vertical-flow gravity, agitating auger formula and centrifugal rotation formula are concentrated mainly on for continous way pyrolysis charring equipment Type, wherein:The vertical-flow continuously carbonizing device characteristic of gravity is generally fixed component in reacting furnace, easy processing manufacture, and Fallen in course of conveying using self gravitation, it is not necessary to which extra drive disk assembly, operating cost is low;But there is raw material and be heated in it Inequality causes charing uneven, easily causes coking slagging to cause equipment to be not normally functioning during temperature control misoperation, the life of production The problems such as thing charcoal quality is inconsistent;Agitating auger formula continuously carbonizing device characteristic is that the rotation of screw auger makes raw material constantly mix Close, therefore raw material is heated evenly in carbonization process;But it has the amount of deflection of helical axis, long helical axis is also easy to produce larger Amount of deflection and aggravate the abrasion of packing auger blade and furnace wall, under the high temperature conditions because helical axis mechanical strength is relatively low, wear and tear feelings Condition is more serious, therefore agitating auger formula is by length limitation, typically no more than 3 meters;And centrifugal rotation formula continuously carbonizing device is special Point is that the revolution of body of heater can make material produce a centrifugal force, and material is affixed to furnace wall under the influence of centrifugal force and improves heat transfer Efficiency, causes charing uniform in material upset mixed process, in addition, swinging carbonizing apparatus is because body of heater is rotatable parts, Can be by the less amount of deflection of extension supporting promise in body of heater transverse direction, therefore swinging carbonizing apparatus is not with by size limit With the advantage such as charing is uniform.

In industrialization promotion, pyrolysis efficiency high and the saving energy are projecting motifs, therefore pyrolysis work of how fitting Skill improves charcoal yield and quality, and energy loss how is reduced during pyrolysis charring, limited resources are efficiently utilized It is following development trend.

The content of the invention

The invention aims to solve to be pyrolyzed effect described in technical background present in existing biomass pyrolytic technology Rate is low, this serious problem of energy loss, discloses a kind of swinging heat stepwise biomass continuous pyrolysis equipment, the equipment is used High-temp combustion gas residual heat recovery principle, designs the pyrolysis oven of adjustable heat stepwise.It is main to include mainly including charging system System (1), hothouse (2), pre- pyrolysis chamber (3), insulation pyrolysis chamber (4), solid and gas piece-rate system (5), pyrolysis gas purification separation system (6), gas heat regenerative system (7) and sealing system (8).Feed system (1) connects rotary furnace by mechanical dynamic seal one (104), Rotary furnace rear end connects solid and gas piece-rate system (5), pyrolysis gas purification separation system (6) connection through mechanical dynamic seal two (402) again Upper end in solid and gas piece-rate system (5), rear end connection gas heat regenerative system (7), gas heat regenerative system (7) is by the high temperature after burning Gas each leads into hothouse (2), pre- pyrolysis chamber (3) and insulation pyrolysis chamber (4) and provides heat again.

Holding furnace wall is cased with outside described swinging heat stepwise biomass continuous pyrolysis equipment, revolution furnace wall (709) (710), the hollow space between revolution furnace wall (709) and insulation furnace wall (710) is passed through the high temperature after being burnt in combustion chamber (704) Flue gas.

Described swinging heat stepwise biomass continuous pyrolysis equipment, it is net that gas heat regenerative system (7) is connected to pyrolysis gas Change piece-rate system (6) rear end, including roots blower (701), electromagnetic flow valve (702), flowmeter (703) and combustion chamber (704), The rear end of three combustion chambers (704) connects hothouse (2), pre- pyrolysis chamber (3) and insulation pyrolysis chamber (4) respectively.

Described swinging heat stepwise biomass continuous pyrolysis equipment, three combustion chamber (704) front ends are respectively connected with electricity Magnetic flow valve (702), electromagnetic flow valve (702) can set different charge flow rates, be produced not after different charge flow rate burnings Same heat, to realize to hothouse (2), pre- pyrolysis chamber (3) and the regulation and control for being incubated pyrolysis chamber (4) heating-up temperature.

Described swinging heat stepwise biomass continuous pyrolysis equipment, between hothouse (2) and pre- pyrolysis chamber (3), in advance Packaged type thermal insulation board (711), thermal insulation board (711) and revolution furnace wall are respectively equipped between pyrolysis chamber (3) and insulation pyrolysis chamber (4) (709) two-way soft packing seal mode is used between insulation furnace wall (710), rack (707) is welded at thermal insulation board (711) two ends, Rack (707) is stretched out outside stove and upper end is engaged with regulation gear (706), and lower end is attached on horizontal scale line (708), thermal insulation board (711) moving range is limited between the 1/4-1/2 of rotary furnace axial direction, adjusts hothouse (2) by adjusting gear (706), pre- Pyrolysis chamber (3) and the siding-to-siding block length for being incubated pyrolysis chamber (4), to meet different technological requirements.

Described swinging heat stepwise biomass continuous pyrolysis equipment, two-way soft packing seal mode includes gland (801), gland pin (802), filler (803), shelves ring (804) and annulus (805) composition, shelves ring (804) and filler (803) are adopted Installed, be sealed in respectively between revolution furnace wall (709) and insulation furnace wall (710) with symmetrical expression, the sealing means are applied to reciprocal Formula and swinging motion.

Described swinging heat stepwise biomass continuous pyrolysis equipment, hothouse (2), pre- pyrolysis chamber (3) and heat preservation hot Solution room (4) inner chamber is welded with internal helical blades (301), and internal helical blades (301) do gyration, internal helical blades with pyrolysis oven (301) controlled the transporting velocity of material, to meet the regulation and control to residence time of material.

Described swinging heat stepwise biomass continuous pyrolysis equipment, feed system (1) includes airlock (101), adjusted Frequency motor (102) and screw auger (103), the rotating speed of frequency modulation motor (102) control screw auger (103), to change inlet amount Size.

Specifically, patent of the present invention has the advantage that compared with prior art:

1) the swinging heat stepwise biomass continuous pyrolysis equipment in the present invention, it is former using adjustable segmentation pyrolysis Reason, according to the pyrolytic process of different material, its conveniently adjusted hothouse, pre- pyrolysis chamber and the siding-to-siding block length for being incubated pyrolysis chamber, To produce the charcoal of different qualities.

2) the gas heat regenerative system in the present invention, passes through the stream of the aperture regulation combustible gas of air intake valve in change burning device Amount, the different heats produced after the burning of gas with various flow are passed through into pyrolysis oven, are controlled the temperature of pyrolysis oven, are overcome high temperature The uncontrollable problem of temperature during gas reuse.

Brief description of the drawings

Fig. 1 is swinging heat stepwise biomass continuous pyrolysis device structure schematic diagram;

Fig. 2 is swinging heat stepwise biomass continuous pyrolysis insulating equipment plate adjusting means schematic diagram;

Fig. 3 is the two-way soft packing seal schematic device of swinging heat stepwise biomass continuous pyrolysis equipment;

As shown in FIG., 1-- feed systems, 2-- hothouses, the pre- pyrolysis chambers of 3--, 4-- insulations pyrolysis chamber, 5-- solid and gases point From system, 6-- pyrolysis gas purification separation systems, 7-- gas heat regenerative systems, 8-- sealing systems, 101- feeding air seal machineries, 102-- Frequency modulation motor, 103-- screw augers, 104-- mechanical dynamic seals one, 301-- internal helical blades, 401-- mechanical dynamic seals two, 501-- discharging airlocks, 502-- carbon assembling bins, 601-- cyclone separators, 602-- two-phase condensation separators, the condensation of 603-- three-phases Separator, 604-- oil-collecting bottles, 605-- collection bottles, 606-- washing dedusters, 701-- roots blowers, 702-- electromagnetic flow valves, 703-- flowmeters, 704-- combustion chambers, 705-- flues, 706-- regulation gears, 707-- racks, 708-- horizontal scales Line, 709-- revolutions furnace wall, 710-- insulations furnace wall, 711-- thermal insulation boards, 801-- glands, 802-- gland pins, 803-- fillers, 804-- baffle rings, 805-- annulus.

Embodiment

Below in conjunction with concrete structure and course of work further description of the drawings and examples to the present invention.

As shown in Fig. 1 swinging heat stepwise biomass continuous pyrolysis equipment schematic diagram, material enters spiral shell through airlock Feeder is revolved, then through speed governing helical feed into rotary furnace, rotates through inside spin that to promote material to sequentially pass through dry in rotary furnace Dry room, pre- pyrolysis chamber and insulation pyrolysis chamber, carry out the separation of charcoal and pyrolysis gas in solid and gas piece-rate system after the completion of charing, raw Thing charcoal is collected into carbon assembling bin by discharging airlock;Pyrolysis gas by cyclone dust collectors except after out of dust into B-grade condensation point From system, the bio-oil and water in pyrolysis gas are collected to oil-collecting bottle and collection bottle respectively in condensation separator, can not be cold Solidifying gas pushes to the flow that electromagnetic valve in gas heat regenerative system, heat regenerative system controls gas through roots blower, is passed through to combustion Burn room in burn, burn produce high-temperature flue gas in dispatch into rotary furnace chuck, for rotary furnace pyrolysis heat is provided, heel row Come out of the stove outer.

As shown in Fig. 2 two-way soft packing seal schematic device, packing seal principle is quoted, inside and outside soft packing Formula installs the sealing ensured between rotary furnace and insulation furnace wall.

Such as Fig. 3 swinging heat stepwise biomass continuous pyrolysis insulating equipment plate adjusting means schematic diagram, pass through regulation Gear band carry-over bar is moved, and then pulls the reciprocating motion of sealing ring, to change hothouse, pre- pyrolysis chamber and insulation pyrolysis chamber Length of interval.

Classify more than, it is as follows that the present invention combines marginal data:

Embodiment:Charcoal is produced using maize straw

Charcoal is produced using the swinging heat stepwise biomass continuous pyrolysis equipment of the present invention, raw material is corn stalk Stalk, length about 3~4mm, moisture is in 10~20%, density about 100kg/m3, the startup electrothermal furnace outside rotary furnace is opened, by temperature Degree rises to design temperature, then stalk is added into hopper, opens airlock and stalk is delivered in rotary furnace by feed auger, Thermal insulation board is adjusted to appropriate location, charing is completed when maize straw moves to solid and gas separate section, now by charcoal by going out Material airlock is discharged into carbon assembling bin, and pyrolysis gaseous mixture is discharged into Oil-gas Separation part, 200 DEG C of insulation is carried out in two-phase condenser, will Heavy tar is separated and collected, and gaseous mixture enters back into oil-water-gas three phase separator afterwards, and 80 DEG C are incubated to three phase separator.Profit Stratification principle is used, water, light oil are separated and collected, non-condensable gas passes through adjustable air inflow after washing Electromagnetic flowmeter is transported to combustion chamber, and the high-temperature gas after burning Indoor Combustion is delivered to rotary furnace and is incubated furnace wall In chuck, biomass is pyrolyzed, electrothermal furnace power supply can be now closed, the heat energy of pyrolysis gas burning meets the pyrolysis of itself material Thermal source demand, the flue gas after burning mainly contains carbon dioxide and water etc. and is emitted into air.

Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although reference The present invention is described in detail for preferred embodiment, it will be understood by those within the art that, can be to the present invention's Technical scheme is modified or equivalent substitution, and without departing from the spirit and scope of technical solution of the present invention, it all should cover Among scope of the presently claimed invention.

Claims (7)

1. a kind of swinging heat stepwise biomass continuous pyrolysis equipment, it is characterised in that:Including feed system (1), hothouse (2), pre- pyrolysis chamber (3), insulation pyrolysis chamber (4), solid and gas piece-rate system (5), pyrolysis gas purification separation system (6), gas backheat System (7) and sealing system (8), feed system (1) connect rotary furnace by mechanical dynamic seal one (104), and rotary furnace rear end is again Through mechanical dynamic seal two (401) connection solid and gas piece-rate system (5), pyrolysis gas purification separation system (6) is connected to solid and gas segregative line The upper end of system (5), rear end connection gas heat regenerative system (7);Between hothouse (2) and pre- pyrolysis chamber (3), pre- pyrolysis chamber (3) and Packaged type thermal insulation board (711), thermal insulation board (711) and revolution furnace wall (709) and insulation are respectively equipped between insulation pyrolysis chamber (4) Two-way soft packing seal mode is used between furnace wall (710), thermal insulation board (711) two ends welding rack (707), rack (707) is stretched Outside coming out of the stove and upper end is engaged with regulation gear (706), and lower end is attached on horizontal scale line (708), the mobile model of thermal insulation board (711) Enclose and be limited between the 1/4-1/2 of rotary furnace axial direction.
2. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1, it is characterised in that revolution Holding furnace wall (710) is cased with outside furnace wall (709), the hollow space between revolution furnace wall (709) and insulation furnace wall (710) is passed through High-temperature flue gas after being burnt in combustion chamber (704).
3. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1, it is characterised in that gas Heat regenerative system (7) is connected to pyrolysis gas purification separation system (6) rear end, including roots blower (701), electromagnetic flow valve (702), Flowmeter (703) and combustion chamber (704), the rear ends of three combustion chambers (704) connect respectively hothouse (2), pre- pyrolysis chamber (3) and It is incubated pyrolysis chamber (4).
4. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1 or 3, it is characterised in that three Individual combustion chamber (704) front end is respectively connected with electromagnetic flow valve (702), and electromagnetic flow valve (702) can set different charge flow rates.
5. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1, it is characterised in that two-way Soft packing seal mode includes gland (801), gland pin (802), filler (803), baffle ring (804) and annulus (805) composition, Filler (803) uses graphite plate root timber material, and baffle ring (804) and filler (803) are installed using symmetrical expression, and rotary furnace is sealed in respectively Between wall (709) and insulation furnace wall (710).
6. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1, it is characterised in that dry Room (2), pre- pyrolysis chamber (3) and insulation pyrolysis chamber (4) inner chamber are welded with internal helical blades (301), and internal helical blades (301) are with warm Solution stove does gyration.
7. a kind of swinging heat stepwise biomass continuous pyrolysis equipment according to claim 1, it is characterised in that charging System (1) includes feeding air seal machinery (101), frequency modulation motor (102) and screw auger (103), frequency modulation motor (102) control spiral The rotating speed of auger (103).
CN201510291978.2A 2015-06-01 2015-06-01 Swinging heat stepwise biomass continuous pyrolysis equipment CN104946279B (en)

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Publication number Priority date Publication date Assignee Title
CN105219417B (en) * 2015-10-16 2017-05-03 北京神雾环境能源科技集团股份有限公司 Biomass pyrolysis system and biomass pyrolysis method
CN105694930B (en) * 2016-03-09 2019-01-25 肖国雄 A kind of interrupted pyrolysis oven of tunnel type biomass
CN106595326A (en) * 2016-12-09 2017-04-26 天津大学 Efficient double-hot-trap solid bulk material waste heat recovery device
CN107099315B (en) * 2017-05-27 2020-04-28 中信重工机械股份有限公司 Method for separating water vapor and raw coke oven gas in low-rank coal pyrolysis process
CN108709383A (en) * 2018-06-01 2018-10-26 周封 The conveying-type energy-saving boiling and drying equipment of multi-source subregion heat exchange
CN109609158A (en) * 2019-02-12 2019-04-12 西北民族大学 A kind of technique of catalytic pyrolysis of biomass reaction

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CN201665655U (en) * 2010-04-16 2010-12-08 西安三瑞实业有限公司 Novel horizontal external-heat type rotary carbonization carbocoal furnace
CN103614151A (en) * 2013-01-25 2014-03-05 农业部规划设计研究院 Horizontal-type continuous biochar carbonization device
CN104629805A (en) * 2014-12-29 2015-05-20 东北农业大学 Continuous sectioned crop straw pyrolysis circulation system

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CN201665655U (en) * 2010-04-16 2010-12-08 西安三瑞实业有限公司 Novel horizontal external-heat type rotary carbonization carbocoal furnace
CN103614151A (en) * 2013-01-25 2014-03-05 农业部规划设计研究院 Horizontal-type continuous biochar carbonization device
CN104629805A (en) * 2014-12-29 2015-05-20 东北农业大学 Continuous sectioned crop straw pyrolysis circulation system

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