CN202989073U - Improved structure of biomass gasifier - Google Patents

Improved structure of biomass gasifier Download PDF

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Publication number
CN202989073U
CN202989073U CN2012205152401U CN201220515240U CN202989073U CN 202989073 U CN202989073 U CN 202989073U CN 2012205152401 U CN2012205152401 U CN 2012205152401U CN 201220515240 U CN201220515240 U CN 201220515240U CN 202989073 U CN202989073 U CN 202989073U
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CN
China
Prior art keywords
chamber
biomass
solid
air
connect
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Expired - Fee Related
Application number
CN2012205152401U
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Chinese (zh)
Inventor
李德生
索双富
宋龙朝
王冬
黄伟峰
杨义勇
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Tsinghua University
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Tsinghua University
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Priority to CN2012205152401U priority Critical patent/CN202989073U/en
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Publication of CN202989073U publication Critical patent/CN202989073U/en
Anticipated expiration legal-status Critical
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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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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  • Processing Of Solid Wastes (AREA)

Abstract

An improved structure of a biomass gasifier comprises a biomass gasifier. The feeding mode of the biomass gasifier is a closed screw feeding mode. At the same time, positive-pressure air intake is added, a small amount of air of a fan is guided into a feeding screw, and the seal of feeding materials is achieved through materials and intake air pressure. Air intake passages is divided into a main passage and two branch passages, the airflow of the main passage still enters the combustion reaction chamber of the biomass gasifier, an air intake branch passage I is connected with a storage hopper, an air intake branch passage II is connected with the lower end of a centrifugal separation chamber, the position of an air outlet is adjusted to the upper end of a preheating chamber, and valves are arranged in each airflow branch passage to enable each airflow branch passage to be convenient to control. A filter screen is added to the position of the air outlet pipe in the preheating chamber. The improved structure of the biomass gasifier is good in seal effect, high in use ratio of biomass, smooth in air passages, and balanced in strokes of the biomass gasifier.

Description

A kind of improvement structure of biomass gasifying furnace
Technical field
The utility model relates to new forms of energy and high-efficiency energy-saving technology field, is specifically related to a kind of improvement structure of biomass gasifying furnace.
Background technology
Existing biomass gasifying furnace has adopted opening feeding manner, and the sealed structure of charging place, only by the charging rotary valve as sealing member, in working process, this sealed structure is relatively poor to the sealing effectiveness of the high temperature and high pressure gas in the combustion chamber, so the phenomenon that dense smoke is emerged appears in the charging opening place.Except affecting the normal operation of vapourizing furnace, also can cause topsoil, the problems such as wearing and tearing of aggravation charging rotary valve.Outlet pipe directly is connected with the combustion reactions chamber in addition, cause the reaction compartment in the combustion reactions chamber too small, cause part biological matter particle just to be blown in the solid and gas centrifuge separator without complete reaction, not only greatly reduce the utilising efficiency of biomass, go back easily obstruction residue chamber.The inadequate homogenizing of whole air-channel system of existing vapourizing furnace often has the part not smooth phenomenon of feeling suffocated in gas circuit.Therefore, be necessary the sealing means of existing biomass gasifying furnace and the part-structures such as homogenizing distribution of air-channel system are improved.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of improvement structure of biomass gasifying furnace, good sealing effect, and the biomass utilization ratio is high, and gas circuit is smooth and easy, the steam stove stroke balanced.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of improvement structure of biomass gasifying furnace comprises biomass gasifying furnace, and the opening for feed of the sealing storage hopper 16 of biomass gasifying furnace is connected connection by helical screw feeder 15 with the biomass collecting bin.
Connection is connected in the lower end of sealing storage hopper 16 with preheating chamber by charging rotary valve 5, the place of giving vent to anger of preheating chamber 6 is provided with filtering net 1, preheating chamber 6 is connected connection by outlet pipe 14 with the solid and gas centrifuge separator, the pneumatic outlet of solid and gas centrifuge separator 13 is connected connection with gas line, the solid outlet of solid and gas centrifuge separator 13 is connected connection with the residue chamber, residue chamber 11 is provided with the second wicket 10, connection is connected in the below of preheating chamber 6 with the combustion reactions chamber, combustion reactions chamber 7 is provided with the first wicket 9, and connection is connected in combustion reactions chamber 7 with blower fan by main road pipe 17.
The first bypass duct 18 1 ends are connected on main road pipe 17, and the other end passes through the first valve 2 and is connected storage hopper 16 connections, and the second bypass duct 19 1 ends are connected on main road pipe 17, solid outlet place's connection that the other end is connected with the solid and gas centrifuge separator by the second valve 4.
The utility model good sealing effect, the biomass utilization ratio is high, and gas circuit is smooth and easy, the steam stove stroke balanced.
Description of drawings:
Accompanying drawing is structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of improvement structure of biomass gasifying furnace comprises biomass gasifying furnace, and the opening for feed of the sealing storage hopper 16 of biomass gasifying furnace is connected connection by helical screw feeder 15 with the biomass collecting bin.
Connection is connected in the lower end of sealing storage hopper 16 with preheating chamber by charging rotary valve 5, the place of giving vent to anger of preheating chamber 6 is provided with filtering net 1, preheating chamber 6 is connected connection by outlet pipe 14 with the solid and gas centrifuge separator, the pneumatic outlet of solid and gas centrifuge separator 13 is connected connection with gas line, the solid outlet of solid and gas centrifuge separator 13 is connected connection with the residue chamber, residue chamber 11 is provided with the second wicket 10, connection is connected in the below of preheating chamber 6 with the combustion reactions chamber, combustion reactions chamber 7 is provided with the first wicket 9, and connection is connected in combustion reactions chamber 7 with blower fan by main road pipe 17.
The first bypass duct 18 1 ends are connected on main road pipe 17, and the other end passes through the first valve 2 and is connected storage hopper 16 connections, and the second bypass duct 19 1 ends are connected on main road pipe 17, solid outlet place's connection that the other end is connected with the solid and gas centrifuge separator by the second valve 4.
Of the present utility model and principle of work is:
The material loading of biomass gasifying furnace is by helical screw feeder 15, biological particles to be risen in sealing storage hopper 16, under the rotation of charging rotary valve 5, the biological particles in the storage hopper of sealing is delivered in preheating chamber 6 and combustion reactions chamber 7.At this moment, start blower fan 8 and blast air to the combustion reactions chamber, begin to react at the first wicket 9 place point biomass-burnings simultaneously.
Along with the carrying out of reaction, reacted inflammable gas follow residue and not the biological particles of complete reaction at first pass through the filtration of filtering net 1, then be blown in outlet pipe 14 and solid and gas centrifuge separator 13.Air pressure in combustion reactions chamber 7 and preheating chamber 6 also increases, and opens tracheae the first valve 2 this moment and starts the first bypass duct 18 air-flows, makes portion of air enter into sealing storage hopper 16, has reduced the gas pressure difference at charging rotary valve two ends Shang Xia 5.At this moment, charging rotary valve 5 places just exist the mechanical seal of rotary cylinder, material sealing and the air seal in the sealing storage hopper.This combination sealing mode has solved the phenomenon that smoke clogging at the charging opening place.
Open tracheae the second valve 4 and start the second bypass duct 19 air-flows, make one air enter in solid and gas centrifuge separator 13.After the solid and gas mixture in outlet pipe 14 separated through the solid and gas centrifuge separator, inflammable gas arrived burner by gas line 12.And the air draught of the second bypass duct 19 can blow afloat the not biological particles of complete reaction, biological particles is burnt again carry out secondary reaction, makes it complete reaction as far as possible.Not only greatly improve the utilization ratio of biological particles, also solved the problem of biological particles obstruction residue chamber.
Outlet pipe 14 7 is moved on to preheating chamber 6 upper ends and increased the vapourizing furnace reaction compartment from the combustion reactions chamber, and by the improvement to air inlet path, make the gas circuit of whole system obtain homogenizing, even can guarantee also when gas shock is arranged that the gas pipeline of whole system is unimpeded and not feel suffocated.The 1 pair of combustion gas of filtering net that connects outlet pipe 14 places increase at preheating chamber has filter effect preferably, reduced to a certain extent the solid impurity in outlet pipe 14, the biomass of complete reaction are still stayed continued reaction in preheating chamber 6, effectively improved the utilization ratio of biomass.

Claims (3)

1. the improvement structure of a biomass gasifying furnace, comprise biomass gasifying furnace, it is characterized in that: the opening for feed of the sealing storage hopper (16) of biomass gasifying furnace is connected 3 by helical screw feeder (15) with the biomass collecting bin) connect.
2. the improvement structure of a kind of biomass gasifying furnace according to claim 1, it is characterized in that: the lower end of sealing storage hopper (16) is connected 6 by charging rotary valve (5) with preheating chamber) connect, the place of giving vent to anger of preheating chamber (6) is provided with filtering net (1), preheating chamber (6) is connected 13 by outlet pipe (14) with the solid and gas centrifuge separator) connect, the pneumatic outlet of solid and gas centrifuge separator (13) is connected 12 with gas line) connect, the solid outlet of solid and gas centrifuge separator (13) is connected 11 with the residue chamber) connect, residue chamber (11) is provided with the second wicket (10), the below of preheating chamber (6) is connected 7 with the combustion reactions chamber) connect, combustion reactions chamber (7) is provided with the first wicket (9), combustion reactions chamber (7) is connected 8 by main road pipe (17) with blower fan) connect.
3. the improvement structure of a kind of biomass gasifying furnace according to claim 2, it is characterized in that: the first bypass duct (18) one ends are connected on main road pipe (17), the other end passes through the first valve (2) and is connected storage hopper (16) connection, the second bypass duct (19) one ends are connected on main road pipe (17), and the other end is connected 13 with the solid and gas centrifuge separator by the second valve (4)) solid outlet place's connection.
CN2012205152401U 2012-10-09 2012-10-09 Improved structure of biomass gasifier Expired - Fee Related CN202989073U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205152401U CN202989073U (en) 2012-10-09 2012-10-09 Improved structure of biomass gasifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205152401U CN202989073U (en) 2012-10-09 2012-10-09 Improved structure of biomass gasifier

Publications (1)

Publication Number Publication Date
CN202989073U true CN202989073U (en) 2013-06-12

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CN2012205152401U Expired - Fee Related CN202989073U (en) 2012-10-09 2012-10-09 Improved structure of biomass gasifier

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CN (1) CN202989073U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235830A (en) * 2013-06-14 2014-12-24 山东多乐采暖设备有限责任公司 Intelligent boiler for burning biomass particles
CN104774651A (en) * 2015-03-20 2015-07-15 李毅强 Biomass gasifying furnace automatic feeding device of biomass gasifying furnace automatic feeding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235830A (en) * 2013-06-14 2014-12-24 山东多乐采暖设备有限责任公司 Intelligent boiler for burning biomass particles
CN104774651A (en) * 2015-03-20 2015-07-15 李毅强 Biomass gasifying furnace automatic feeding device of biomass gasifying furnace automatic feeding system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20171009

CF01 Termination of patent right due to non-payment of annual fee