CN101967403A - Biomass stokehole storage device and biomass gasification reaction system - Google Patents
Biomass stokehole storage device and biomass gasification reaction system Download PDFInfo
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- CN101967403A CN101967403A CN2010105289058A CN201010528905A CN101967403A CN 101967403 A CN101967403 A CN 101967403A CN 2010105289058 A CN2010105289058 A CN 2010105289058A CN 201010528905 A CN201010528905 A CN 201010528905A CN 101967403 A CN101967403 A CN 101967403A
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Abstract
The invention discloses a biomass stokehole storage device, which includes a buffering chamber and a working chamber, wherein the buffering chamber is provided with a feeding port, bottom of the working chamber is provided with a discharge port, the buffering chamber is located over the working chamber, and the buffering chamber and the working chamber are communicated via a gas lock device. Leakage of hot reaction gas in the reaction system, such as a fluidized bed gas reactor, is prevented with smooth external feeding. The invention also discloses a biomass gasification reaction system using the biomass stokehole storage device.
Description
Technical field
The biomass gasification reaction system that the present invention relates to the preceding storage device of a kind of biomass stove and use this device.
Background technology
Biogas is a kind of clean fuel, renewable energy source, and its objectionable impurities (sulphur and nitrogen etc.) content only is 1/10 of middle matter bituminous coal, and its energy utilization simultaneously can realize greenhouse gases CO
2Zero release.
Gasifying biomass is meant after the biomass material processing treatment, sends in the vapourizing furnace, carries out gasification cracking under the anoxybiotic condition, obtains inflammable gas, thereby also will obtain fine product gas through the row purifying treatment to output gas according to application need sometimes.
The gasifying biomass principle is under certain thermodynamic condition, effect by means of gasifying medium such as air, oxygen or water vapour etc., make superpolymer generation pyrolysis, oxidation, reduction, the reforming reaction of biomass, further thermally splitting of the tar of pyrolysis association or catalytic cracking become the small molecules hydrocarbon polymer, obtain inflammable gass such as CO, H2 and CH4.Gasifying biomass mainly comprises gasification reaction, synthetic gas catalytic shift and gas isolation of purified process (directly use without isolation of purified).With the air is that gasifying medium is an example, and gasifying biomass chemical reaction general formula can be expressed as:
CH
1.4O
0.6+0.4O
2+1.5N
2＝0.7CO+0.3CO
2+0.6H
2+0.1H
2O+(1.5N
2)
Generally speaking, biomass are made up of Mierocrystalline cellulose, hemicellulose, xylogen, inert ash etc., oxygen level and fugitive constituent height, and the reactivity of coke is strong, so biomass and coal facies ratio, has higher gasification reactivity, is more suitable for gasification.
Storage device as feed bin, is a kind of device that is used for storing bulk material, mainly plays effects such as relay storage, balanced operation in production process.
Chinese patent ZL200920100261.5 (CN201415836Y) discloses a kind of storing silo with inner cone, its inner cone be arranged in the silo body and be positioned at discharge port directly over, inner cone is affixed by the inwall of sway brace and silo body, be provided with inspection gallery between silo body and inner cone, the center feeding machine places the outside of silo body and is installed in the discharge port place of silo body.It is big that this storing silo has a discharge port area, solved the difficult problem of feed bin putty and bridge formation.
Chinese patent ZL200920149783 discloses a kind of feed bin, this feed bin comprises the warehouse with opening and is used to open or seal the valve of described opening, wherein, described valve is positioned at the outside of described warehouse, described valve comprises track, valve body and drive unit, described valve body is slidably mounted on the described track, and described drive unit is connected with described valve body, is used to drive valve body and slides on described track.This feed bin is arranged on the warehouse outside of feed bin owing to be used to open or seal the valve of the opening of feed bin, thereby need not to enter warehouse inside and feed bin is overhauled and safeguard, thereby can relatively easily carry out the Maintenance and Repair operation.
Chinese patent ZL200520081732.4 (CN2786027Y) discloses a kind of pulsate fluidizing feed bin, is made up of warehouse, cone and cover plate three parts, and cover plate is installed in the warehouse top, which is provided with access opening and air outlet; Warehouse is provided with access opening and opening for feed; Cone is installed in the warehouse lower end, and its underpart is provided with discharge port; Also be provided with dust arrester installation and venting on the warehouse, also be provided with blow device on the cone.The pulsate fluidizing feed bin has solved the problem that material is built bridge in the feed bin bottom owing to increased purging system on the cone of feed bin, makes feed bin not influence the carrying out of whole flow process, has solved the problem of putty; Increased dust arrester installation at the feed bin top, solved the emission problem of workshop dust, the environment in workshop is improved; The setting of venting on the feed bin makes the damage that does not have equipment when blasting, and also can not cause personnel's injures and deaths.
Chinese patent ZL 200920041591 discloses the adjustable compound feed bin in the preceding no end of a kind of biomass stove, feed bin and back feed bin before it comprises; Preceding feed bin and feed bin top, back are equipped with charging belt; The bottom of preceding feed bin is provided with several hoppers, is provided with the loose metal roller in the hopper, and the hopper bottom connects rotary pocket feeder, and the rotary pocket feeder bottom is provided with preceding feed bin material blanking tube; Back feed bin internal upper part is provided with drapery panel, interior bottom is provided with discharge rolls, and the discharge rolls bottom is provided with back feed bin material blanking tube; Before feed bin material blanking tube and feed bin material blanking tube bottom, back correspond to the stokehold adjustable speed flute profile feeding machine of weighing, rotary pocket feeder and discharge rolls are by electric motor driving.This feed bin adjustable blanking of steady and continuous is as required gone into stove, prevents inhomogeneous biomass stove unstable combustion even the flame-out phenomenon that causes boiler short-term fracture to cause of prime biomass feeding system fault or material loading.
In prior art, as the relative relatively more open structure of its opening for feed of feed bin of storage device, and bore is bigger, make things convenient for entering of material, but, the gas that produces in the production process refluxes easily and escapes from this opening for feed, especially in the biomass gasification reaction system, because reactant gases comprises CO, H
2And CH
4Etc. inflammable, explosive composition, what it leaked is dangerous self-evident.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide the biomass gasification reaction system of the preceding storage device of a kind of biomass stove and this device of application, solved and prevented the problem that reactant gases leaks when in reactive system, feeding in raw material.
On the one hand, in order to realize above-mentioned goal of the invention, the invention provides the preceding storage device of a kind of biomass stove, comprise surge bunker and working bin, wherein, surge bunker is provided with opening for feed, and the bottom of working bin is provided with discharge port, surge bunker is arranged on working bin top, is connected by an air-lock device between surge bunker and the working bin to communicate.Have biomass material such as biological particles shape raw material in the surge bunker, during work, biological particles temporary in the surge bunker is introduced into working bin, falls into the stokehold pay-off by working bin.This design can prevent that the reactant gases of heat in reactive system such as the fluidized bed gasification reactor from being leaked by working bin.
Air-lock device can be a throat, when Powdered and granular biomass moulding raw material passes through this throat, leave the space hardly, such design makes the effusion difficulty of gas, the big opening for feed of surge bunker can satisfy the requirement of equipment and technology simultaneously, further, a plurality of parallel and separate surge bunkers are connected with a working bin by a plurality of throats respectively and communicate, and can guarantee the supply rate of material.
Air-lock device also can be valve, when surge bunker when its opening for feed receives material, valve is in closure state, and when surge bunker when working bin feeds in raw material, valve is in open mode; Further, discharge port in the working bin bottom is provided with valve, when working bin in fluidized bed gasification reactor during feed, then the valve of working bin is in open mode, and the valve of surge bunker is in closure state, and when surge bunker when working bin is reinforced, then the valve of working bin is in closing condition, and the cylinder valve of surge bunker is in open mode.
At special occasions, environmental gas is required under the higher situation, between a plurality of surge bunkers are adjacent from top to bottom by valve be connected in series successively the back be connected with working bin by valve by nethermost surge bunker, this is the depressed structure of a kind of multistage lock, further reduces the possibility that reactant gases leaks.Valve is a kind of of cylinder valve, ball valve or cylinder valve, is preferably the cylinder valve, and the closure of cylinder valve is good, and during valve open, the channel size of its formation is big, more helps the conveying of material.
On the other hand, in order to realize purpose of the present invention, the present invention also provides a kind of biomass gasification reaction system that adopts above-mentioned stokehold storage device.Further, this biomass gasification reaction system comprises: the fluidized bed gasification reactor that is used to prepare biological fuel gas; The biomass material plenum system of reaction raw materials is provided for this fluidized bed gasification reactor; Be arranged at outside this fluidized bed gasification reactor and the reaction product of this fluidized bed gasification reactor is carried out tripping device more than the isolating two-stage, the above tripping device of this two-stage comprises first tripping device and second tripping device at least; And the gasifying medium plenum system that gasifying medium is provided for fluidized bed gasification reactor.Wherein, the biomass material plenum system comprises above-mentioned stokehold storage device
Preferably, in biomass gasification reaction of the present invention system, fluidized bed gasification reactor comprises first opening for feed and second opening for feed that is arranged at its central region, the gasifying medium inlet that is arranged at its bottom and waste outlet and the material outlet that is arranged at its upper area; First opening for feed of fluidized bed gasification reactor engages with the biomass material feedway, and the gasifying medium inlet of fluidized bed gasification reactor engages with the gasifying medium feedway; First tripping device comprises the material inlet that is arranged at its upper area, the loop exit that is arranged at the material outlet of its central region and is arranged at its bottom; The material inlet of first tripping device engages with the material outlet of fluidized bed gasification reactor, and the loop exit of first tripping device engages with second opening for feed of fluidized bed gasification reactor by first e Foerderanlage; Second tripping device comprises gas outlet, the material inlet that is arranged at its upper area that is arranged at its top, the loop exit that is arranged at its bottom; The material inlet of second tripping device engages with the material outlet of first tripping device, and the loop exit of second tripping device engages with second opening for feed of fluidized bed gasification reactor by second e Foerderanlage and first e Foerderanlage; The biomass material feedway comprises the preceding storage device of aforesaid biomass stove.
The biomass material feedway also can further comprise feed bin and pay-off, and feed bin comprises its top feed mouth and bottom discharge mouth; Pay-off comprises horizontal conveying belt and high spud angle conveying belt, horizontal conveying belt is positioned at the bottom discharge mouth below of feed bin, the initiating terminal of high spud angle conveying belt engages with the horizontal feed end of tape, and the end of high spud angle conveying belt is positioned at its top feed mouth top of surge bunker.
Compared with prior art, storage device is provided with the depressed structure of lock before the biomass stove of the present invention, is guaranteeing that outside charging smoothly under the situation, can prevent that the reactant gases of heat in reactive system such as the fluidized bed gasification reactor from leaking simultaneously.Simultaneously, the multi-stage separation device that the biomass gasification reaction system is provided with can fully react biological particles, has improved gasification efficiency, has saved the energy, has produced more combustion gas, has improved the combustion gas thermal value; Because the biological particles sufficient reacting has reduced the generation of tar and dust, the potential safety hazard of having avoided tar and dust to form in fluidized bed gasification reactor has reduced the problem of environmental pollution that processing tar and dust bring simultaneously.
Below in conjunction with accompanying drawing the present invention being made a progressive describes in detail.
Description of drawings
Fig. 1 is the structural representation of storage device before the biomass stove of the present invention.
Fig. 2 is the structural representation of biomass gasification reaction of the present invention system.
Embodiment
See also Fig. 1, storage device comprises surge bunker 61 and working bin 62 before the biomass stove of present embodiment, wherein, surge bunker is provided with opening for feed 63, the bottom of working bin is provided with discharge port 64, and surge bunker 61 is arranged on working bin 62 tops, is connected by cylinder valve 65 between surge bunker 61 and the working bin 62 to communicate, and the discharge port 64 in the working bin bottom is provided with rotary valve 66, selects rotary valve 66 can realize being connected excessive with the pay-off of below better as the valve at this place.When working bin in fluidized bed gasification reactor during feed, then the rotary valve of working bin discharge port is in open mode, and the cylinder valve between surge bunker and the working bin is in closure state, and when surge bunker when working bin is reinforced, then the rotary valve of working bin discharge port is in closing condition, and the cylinder valve between surge bunker and the working bin is in open mode.
See also Fig. 2, the biomass gasification reaction system of present embodiment comprises that fluidized bed gasification reactor such as fluidized-bed 1, first tripping device such as cyclonic separator 2, second tripping device such as cyclonic separator 3, wind send device such as gas blower 4, heat exchanger 5, surge bunker 61, working bin 62, stokehold pay-off such as worm conveyor 7, feed bin 8, horizontal conveying belt 91, high spud angle conveying belt 92, waste pipe 101, slag discharging device such as worm conveyor 102, waste storage device 103, diffuse channel 111, portfire 112, water-sealed valve 12.Wherein, the top of feed bin 8 has opening for feed, and the bottom has discharge port; Horizontal conveying belt 91 is positioned at the bottom discharge mouth below of feed bin 8, and the initiating terminal of high spud angle conveying belt 92 engages with the end of horizontal conveying belt 91, and the end of high spud angle conveying belt 91 is positioned at its top feed mouth top of surge bunker 61.The top of surge bunker 61 has opening for feed, and the bottom of working bin 62 has discharge port; Surge bunker 61 and working bin 62 are arranged up and down, are connected by the cylinder valve between surge bunker 61 and the working bin 62 to communicate.The initiating terminal of stokehold pay-off such as worm conveyor 7 is positioned at the bottom discharge mouth below of working bin 62, and its terminal feeds first opening for feed of fluidized-bed 1.Fluidized-bed 1 middle part has first opening for feed and second opening for feed; Its bottom has gasifying medium inlet and waste outlet; Its top has material outlet.The waste outlet connects waste pipe 101, and waste pipe 101 exits are equipped with slag discharging device such as worm conveyor 102.Worm conveyor 102 is inclined upwardly, and promptly its discharge end is higher than its feed end.The discharge end of worm conveyor 102 is equipped with waste storage device 103.The top of first tripping device such as cyclonic separator 2 has material inlet, and this material inlet links to each other by pipeline with the material outlet of fluidized-bed 1; Its middle part has material outlet; Its bottom has loop exit; This loop exit is by pipe connection one regenerant apparatus for temporary storage 21, and the outlet at bottom of regenerant apparatus for temporary storage 21 has first e Foerderanlage such as the worm conveyor that leads to fluidized-bed 1 second opening for feed outward.The top of second tripping device such as cyclonic separator 3 has material inlet; Its top has gas outlet, and gas outlet connects the combustion gas house steward; Its bottom has loop exit; Loop exit has second e Foerderanlage such as the worm conveyor that leads to regenerant apparatus for temporary storage 21 outward.Heat exchanger 5 comprises fuel gas inlet, gas outlet and gas inlet, air; Fuel gas inlet is connected gas pipeline respectively with gas outlet; Gas inlet is connected air line respectively with air.The gas outlet of second tripping device such as cyclonic separator 3 is provided with water-sealed valve 12, and water-sealed valve 12 is positioned at before the heat exchanger 5.Water-sealed valve 12 is provided with one and diffuses mouth, and this diffuses a mouthful connection diffuse channel 111, and the exit end of diffuse channel 111 is provided with portfire 112.Wind send device such as gas blower 4 to be connected in the gas inlet of heat exchanger 5 by air line, and the air of heat exchanger 5 is connected in the gasifying medium inlet of fluidized-bed 1 bottom, and the bottom of air from fluidized-bed 1 is blown into.The bottom of fluidized-bed 1 is equipped with a plurality of ventilator trunks, and the blast inlet of ventilator trunk communicates with the gas inlet of fluidized-bed 1, is covered with the blast cap of bamboo hat shape on the air outlet of ventilator trunk, is equipped with a plurality of apertures on the blast cap.
The working process of present embodiment is as follows:
Biological particles enters surge bunker 61 from feed bin 8 through horizontal conveying belt 91 and high spud angle conveying belt 92, enters working bin 62 through surge bunker 61, enters fluidized-bed 1 through worm conveyor 7 then.Gas blower 4 is blown in fluidized-bed 1.Biological particles and air effect generate combustion gas and solid waste such as CO, H2 and CH4 in fluidized-bed 1.Solid waste enters waste storage device 103 through waste pipe 101 and worm conveyor 102.
Combustion gas and not the biological particles of complete reaction enter cyclonic separator 2, combustion gas and lighter biological particles enter cyclonic separator 3 after separating, heavier biological particles returns fluidized-bed 1 by worm conveyor and continues to participate in reaction.
In cyclonic separator 3, combustion gas further separates with lighter biological particles, combustion gas enters gas pipeline, heat the air that is used to react by heat exchanger 5, combustion gas simultaneously is cooled, the combustion gas that is cooled is delivered to gas line and is used (if there is unnecessary combustion gas then to enter diffuse channel 111, in the lit-end of diffuse channel 111) for downstream unit.
Though the present invention discloses as above with preferred embodiment, is not in order to limit scope of the invention process.Any those of ordinary skill in the art, promptly every when doing a little improvement in not breaking away from invention scope of the present invention according to the equal improvement that the present invention did, should be invention scope of the present invention and contain.
Claims (10)
1. stokehold storage device that is used for the biomass gasification reaction system, it comprises surge bunker and working bin, wherein, surge bunker is provided with opening for feed, the bottom of working bin is provided with discharge port, and surge bunker is arranged on working bin top, is connected by an air-lock device between surge bunker and the working bin to communicate.
2. stokehold according to claim 1 storage device, wherein, described air-lock device is a throat or valve.
3. stokehold according to claim 1 storage device, wherein, the discharge port in described working bin bottom further is provided with valve.
4. according to claim 2 or 3 described stokehold storage devices, wherein, described valve is cylinder valve, ball valve or cylinder valve.
5. stokehold according to claim 1 storage device, wherein, a plurality of parallel and separate described surge bunkers are connected with a described working bin by a plurality of described air-lock devices respectively and communicate.
6. stokehold according to claim 1 storage device wherein, is connected with described working bin by described air-lock device by nethermost surge bunker by the described air-lock device back that is connected in series successively between a plurality of described surge bunkers are adjacent from top to bottom.
7. an employing is as the biomass gasification reaction system of stokehold storage device as described in one of claim 1-6.
8. biomass gasification reaction as claimed in claim 7 system, wherein, this biomass gasification reaction system comprises:
Be used to prepare the fluidized bed gasification reactor of biological fuel gas;
The biomass material plenum system of reaction raw materials is provided for described fluidized bed gasification reactor;
Be arranged at outside the described fluidized bed gasification reactor and the reaction product of described fluidized bed gasification reactor is carried out tripping device more than the isolating two-stage, the above tripping device of this two-stage comprises first tripping device and second tripping device at least; And
The gasifying medium plenum system of gasifying medium is provided for described fluidized bed gasification reactor;
Wherein, described biomass material plenum system comprises described stokehold storage device.
9. biomass gasification reaction as claimed in claim 7 system, wherein,
Described fluidized bed gasification reactor comprises first opening for feed and second opening for feed that is arranged at its central region, the gasifying medium inlet that is arranged at its bottom and waste outlet and the material outlet that is arranged at its upper area; First opening for feed of described fluidized bed gasification reactor engages with described biomass material feedway, and the gasifying medium inlet of described fluidized bed gasification reactor engages with described gasifying medium feedway;
Described first tripping device comprises the material inlet that is arranged at its upper area, the loop exit that is arranged at the material outlet of its central region and is arranged at its bottom; The material inlet of described first tripping device engages with the material outlet of described fluidized bed gasification reactor, and the loop exit of described first tripping device engages with second opening for feed of described fluidized bed gasification reactor by first e Foerderanlage; And
Described second tripping device comprises gas outlet, the material inlet that is arranged at its upper area that is arranged at its top, the loop exit that is arranged at its bottom; The material inlet of described second tripping device engages with the material outlet of described first tripping device, and the loop exit of described second tripping device engages with second opening for feed of described fluidized bed gasification reactor by second e Foerderanlage and first e Foerderanlage.
10. biomass gasification reaction according to claim 8 system, wherein, described biomass material feedway further comprises feed bin and pay-off, described feed bin comprises its top feed mouth and bottom discharge mouth; Described pay-off comprises horizontal conveying belt and high spud angle conveying belt, described horizontal conveying belt is positioned at the bottom discharge mouth below of described feed bin, the initiating terminal of described high spud angle conveying belt engages with described horizontal feed end of tape, and the end of described high spud angle conveying belt is positioned at its top feed mouth top of described surge bunker.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105289058A CN101967403A (en) | 2010-11-01 | 2010-11-01 | Biomass stokehole storage device and biomass gasification reaction system |
| PCT/CN2011/081415 WO2012059019A1 (en) | 2010-11-01 | 2011-10-27 | Biomass gasification complete apparatus and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105289058A CN101967403A (en) | 2010-11-01 | 2010-11-01 | Biomass stokehole storage device and biomass gasification reaction system |
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| CN101967403A true CN101967403A (en) | 2011-02-09 |
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| CN2010105289058A Pending CN101967403A (en) | 2010-11-01 | 2010-11-01 | Biomass stokehole storage device and biomass gasification reaction system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012059019A1 (en) * | 2010-11-01 | 2012-05-10 | 广州迪森热能技术股份有限公司 | Biomass gasification complete apparatus and system thereof |
| CN104910967A (en) * | 2015-06-24 | 2015-09-16 | 大连理工大学 | Clean and high-efficiency gasification device |
| CN107011929A (en) * | 2017-05-25 | 2017-08-04 | 郑仲新 | A kind of safe charging device of organic waste and feeding method |
| CN107934568A (en) * | 2017-12-25 | 2018-04-20 | 中矿金业股份有限公司 | A kind of new dust transport system |
| CN108278588A (en) * | 2018-02-10 | 2018-07-13 | 山东省环能设计院股份有限公司 | A kind of biomass surely fires electricity generation system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107011929A (en) * | 2017-05-25 | 2017-08-04 | 郑仲新 | A kind of safe charging device of organic waste and feeding method |
| CN107934568A (en) * | 2017-12-25 | 2018-04-20 | 中矿金业股份有限公司 | A kind of new dust transport system |
| CN108278588A (en) * | 2018-02-10 | 2018-07-13 | 山东省环能设计院股份有限公司 | A kind of biomass surely fires electricity generation system |
| CN108278588B (en) * | 2018-02-10 | 2019-11-22 | 山东省环能设计院股份有限公司 | A kind of biomass surely fires electricity generation system |
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Application publication date: 20110209 |