CN207268448U - A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device - Google Patents
A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device Download PDFInfo
- Publication number
- CN207268448U CN207268448U CN201721100463.0U CN201721100463U CN207268448U CN 207268448 U CN207268448 U CN 207268448U CN 201721100463 U CN201721100463 U CN 201721100463U CN 207268448 U CN207268448 U CN 207268448U
- Authority
- CN
- China
- Prior art keywords
- fluidized bed
- backfire
- biomass boiler
- recirculating fluidized
- feed pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model is specifically related to a kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device, mainly solves existing circulating fluidized bed boiler biomass feeding apparatus and enters feed pipe there are the easy anti-channeling of high-temperature flue gas so as to cause the technical problem of great fire hazard.The utility model mainly includes material blanking tube, feeding air hose, feed pipe and locking wind apparatus, and biomass material enters material blanking tube by gravity, smoothly enters feed pipe under the promotion of feeding wind.Before stove is entered, it is subject to the lasting high flow rate of locking wind, high pressure effect to enter burner hearth；Feeding wind gives biomass fuel one slanting flow velocity, and makes smooth downlink after biomass fuel loosening.Biomass fuel is subject to feeding wind before entering stove high-temperature flue gas anti-channeling enters feed pipe when suppressing fuel detonation, ensures biomass boiler safe and stable operation with the double pressure effect of locking wind, ensureing that biomass fuel is smooth, entering stove in order.
Description
Technical field
The utility model belongs to charging gear technical field, and in particular to a kind of recirculating fluidized bed biomass boiler anti-backfire
Charging gear.
Background technology
Recirculating fluidized bed biomass boiler is the biomass energy combustion apparatus of China's independent research.Biomass boiler is in China
In the past 10 years, circulating fluidized bed combustion mode has the advantages that high combustion efficiency, pollutant discharge amount are low for popularization, and fuel adapts to
Property is extensive, and spreading speed is getting faster.
During Circulating fluidized bed boiler design, biomass fuel is entered into stove point and is located at negative pressure point, negative pressure is beneficial to biomass fuel
Enter stove.But in the process of running, fuel type is different, size range it is larger cause fuel accumulation, to enter stove not smooth；Dry combustion
Material can carry dust and enter stove, when dust concentration is higher detonation cause furnace pressure to increase suddenly, cause high-temperature flue gas anti-channeling enter to
Expects pipe, ignitron fuel even anti-channeling enter feed hopper, cause great fire hazard.The anti-backfire of biomass feeding apparatus is made
With the safe and stable operation for directly affecting boiler.
Utility model content
The purpose of this utility model is that there are high temperature cigarette in order to solve existing circulating fluidized bed boiler biomass feeding apparatus
The easy anti-channeling of gas enters feed pipe so as to cause the technical problem of great fire hazard, there is provided a kind of recirculating fluidized bed biomass boiler
Backfire-proof material feeding device.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device, including material blanking tube, feeding air hose, feed pipe and lock
Wind apparatus is closed, the feed inlet connection feeding system of the material blanking tube, the discharge port of material blanking tube and the feed inlet of feed pipe are connected, given
Expects pipe is obliquely installed and the discharge port of feed pipe is connected with the feed import of recirculating fluidized bed biomass boiler, due to feed pipe
Excessive with the temperature of water cooled membrane wall junction, its end can use stainless steel material, and feeding air hose is arranged on material blanking tube
Bottom, and the air outlet of feeding air hose is connected with material blanking tube, feeding air hose introduces secondary hot-air and gives fuel one oblique flow velocity,
Fuel is loosened at the same time, is dry；Locking wind apparatus is arranged on feed pipe, and make the air outlet of the fairlead of locking wind apparatus with
Feed pipe connects, and introduces secondary hot-air, increases secondary hot-air flow velocity, wind pressure increase, effectively suppresses flue gas anti-channeling and enters feed pipe；
The recirculating fluidized bed biomass boiler backfire-proof material feeding device further includes feedblock, and the feedblock is arranged
Outer wall in feed pipe lower part, to enter to provide sealing protection effect at fire door, avoids fuel, flue gas during feed pipe abrasion from leaking outside；
The recirculating fluidized bed biomass boiler backfire-proof material feeding device further includes sealing device, and the sealing device is located at
Feed pipe discharge port and the junction of recirculating fluidized bed biomass boiler feed import, make to enter to provide sealing protection at fire door
With fuel, flue gas leakage when avoiding being fed pipe abrasion；
Metal corrugated pipe expansion joint is equipped with the middle part of the material blanking tube, when feed pipe expands downwards with burner hearth, will not be damaged
Connection mode between bad each connector, ensures system normal operation；
The feeding air hose is formed by horizontal tube and inclined tube docking, and horizontal tube is inserted from material blanking tube minimum point, and inclined tube is inserted
Enter feed pipe, inclined tube is consistent with feed pipe direction, and this connection mode introduces secondary hot-air along feed pipe direction, to fuel plus
Speed, and dry, loosening fuel, make the smooth downlink of fuel；
The locking wind apparatus introduces pipe, mixing tube and 4 fairleads by two hot winds and forms, and mixing tube is round tube
Road, two hot winds introduce the both sides that pipe is respectively provided above mixing tube circumference, and 4 fairleads are evenly arranged in mixing tube circumference
Lower section.
Fire resisting, heat safe alumina silicate fiber felt are equipped with the inner wall of the feedblock.
The utility model uses above technical scheme, is mainly filled including material blanking tube, feeding air hose, feed pipe and locking wind
Put, material blanking tube lower disposed feeding air hose, arrangement locking wind apparatus in the middle part of feed pipe, burner hearth inlet arrangement feedblock and close
Seal apparatus, biomass material enter material blanking tube by gravity, and inclined feed pipe is smoothly entered under the promotion of feeding wind.
Before stove is entered, it is subject to the lasting high flow rate of locking wind, high pressure effect to enter burner hearth；Feeding wind is oblique to biomass fuel one
To flow velocity, and make biomass fuel loosen after smooth downlink.Biomass fuel is subject to the continuous action of locking wind before entering stove,
Be avoided that because in stove instantaneous pressure it is excessive caused by high-temperature flue gas anti-channeling enter feed pipe the problem of；In pair of feeding wind and locking wind
Under stressor layer effect, ensureing that biomass fuel is smooth, enter stove in order, high-temperature flue gas anti-channeling enters feed pipe when suppressing fuel detonation,
Ensure biomass boiler safe and stable operation.
Brief description of the drawings
Attached drawing is the structure diagram of the utility model.
Embodiment
As shown in drawings, a kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device in the present embodiment, including fall
Expects pipe 1, feeding air hose 2, feed pipe 3 and locking wind apparatus 4, the feeding air hose 2 are formed by horizontal tube and inclined tube docking；It is described
Locking wind apparatus 4 introduces pipe, mixing tube and 4 fairleads by two hot winds and forms, and mixing tube is circular pipe, and two hot winds draw
Enter the both sides that pipe is respectively provided above mixing tube circumference, 4 fairleads are evenly arranged in the lower section of mixing tube circumference；The blanking
The feed inlet connection feeding system of pipe 1, the discharge port of material blanking tube 1 is connected with the feed inlet of feed pipe 3, in the material blanking tube 1
Middle part is equipped with metal corrugated pipe expansion joint, and feed pipe 3 is obliquely installed and makes the discharge port of feed pipe 3 and ciculation fluidized bed biomass
The feed import connection of boiler 7, feeding air hose 2 are arranged on the bottom of material blanking tube 1, and make the inclined tube of feeding air hose 2 positioned at feed
The inner cavity of pipe 3, and it is consistent with 3 direction of feed pipe, locking wind apparatus 4 is arranged on feed pipe 3, and makes drawing for locking wind apparatus 4
The air outlet of outlet pipe is connected with feed pipe 3；The recirculating fluidized bed biomass boiler backfire-proof material feeding device further includes feed set
Pipe 5, the feedblock 5 are set in the outer wall of 3 lower part of feed pipe, and fire resisting, heat safe silicon are equipped with the inner wall of feedblock 5
Sour aluminum fiber mat；The recirculating fluidized bed biomass boiler backfire-proof material feeding device further includes sealing device 6, the sealing device
6 are located at 3 discharge port of feed pipe and the junction of recirculating fluidized bed biomass boiler feed import.
Claims (7)
- A kind of 1. recirculating fluidized bed biomass boiler backfire-proof material feeding device, it is characterised in that：Including material blanking tube (1), feeding wind (2), feed pipe (3) and locking wind apparatus (4) are managed, the feed inlet of the material blanking tube (1) connects feeding system, material blanking tube (1) Discharge port is connected with the feed inlet of feed pipe (3), and feed pipe (3) is obliquely installed and makes the discharge port and recycle stream of feed pipe (3) Change the feed import connection of bed biomass boiler (7), feeding air hose (2) is arranged on the bottom of material blanking tube (1), and makes feeding air hose (2) air outlet is connected with material blanking tube (1), and locking wind apparatus (4) is arranged on feed pipe (3), and makes locking wind apparatus (4) The air outlet of fairlead is connected with feed pipe (3).
- A kind of 2. recirculating fluidized bed biomass boiler backfire-proof material feeding device according to claim 1, it is characterised in that：Institute State recirculating fluidized bed biomass boiler backfire-proof material feeding device and further include feedblock (5), the feedblock (5) be set in The outer wall of expects pipe (3) lower part.
- A kind of 3. recirculating fluidized bed biomass boiler backfire-proof material feeding device according to claim 2, it is characterised in that：Institute State recirculating fluidized bed biomass boiler backfire-proof material feeding device and further include sealing device (6), the sealing device (6) is located at feed Manage (3) discharge port and the junction of recirculating fluidized bed biomass boiler feed import.
- A kind of 4. recirculating fluidized bed biomass boiler backfire-proof material feeding device according to claim 3, it is characterised in that： The middle part of the material blanking tube (1) is equipped with metal corrugated pipe expansion joint.
- A kind of 5. recirculating fluidized bed biomass boiler backfire-proof material feeding device according to claim 4, it is characterised in that：Institute Feeding air hose (2) is stated to be formed by horizontal tube and inclined tube docking.
- A kind of 6. recirculating fluidized bed biomass boiler backfire-proof material feeding device according to claim 5, it is characterised in that：Institute State locking wind apparatus (4) and introduce pipe, mixing tube and 4 fairleads by two hot winds and form, mixing tube is circular pipe, two heat Wind introduces the both sides that pipe is respectively provided above mixing tube circumference, and 4 fairleads are evenly arranged in the lower section of mixing tube circumference.
- 7. according to a kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device of claim 2-6 any one of them, it is special Sign is：Fire resisting, heat safe alumina silicate fiber felt are equipped with the inner wall of the feedblock (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100463.0U CN207268448U (en) | 2017-08-30 | 2017-08-30 | A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100463.0U CN207268448U (en) | 2017-08-30 | 2017-08-30 | A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268448U true CN207268448U (en) | 2018-04-24 |
Family
ID=61961134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721100463.0U Active CN207268448U (en) | 2017-08-30 | 2017-08-30 | A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268448U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731023A (en) * | 2018-06-13 | 2018-11-02 | 安徽长城锅炉制造有限公司 | A kind of anti-backfire device at feeding hole of biomass boiler |
| CN109506230A (en) * | 2018-12-18 | 2019-03-22 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly and energy-efficient biomass recirculating fluidized bed boiler |
| CN109751594A (en) * | 2019-03-04 | 2019-05-14 | 安徽国祯生态科技有限公司 | Biomass boiler |
| CN114873279A (en) * | 2022-05-19 | 2022-08-09 | 西安热工研究院有限公司 | Prevent to carry gaseous reverse biomass material feeding system of cluster of medium |
-
2017
- 2017-08-30 CN CN201721100463.0U patent/CN207268448U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731023A (en) * | 2018-06-13 | 2018-11-02 | 安徽长城锅炉制造有限公司 | A kind of anti-backfire device at feeding hole of biomass boiler |
| CN109506230A (en) * | 2018-12-18 | 2019-03-22 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly and energy-efficient biomass recirculating fluidized bed boiler |
| CN109751594A (en) * | 2019-03-04 | 2019-05-14 | 安徽国祯生态科技有限公司 | Biomass boiler |
| CN114873279A (en) * | 2022-05-19 | 2022-08-09 | 西安热工研究院有限公司 | Prevent to carry gaseous reverse biomass material feeding system of cluster of medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207268448U (en) | A kind of recirculating fluidized bed biomass boiler backfire-proof material feeding device | |
| CN106152486A (en) | A kind of energy-saving combustion unattended boiler | |
| CN105276566B (en) | Coal-fired boiler reform is the method for biomass boiler | |
| CN102557506B (en) | Complete processing equipment of coal gas expanded perlite | |
| CN205783728U (en) | A kind of energy-saving combustion unattended boiler | |
| CN207262700U (en) | A kind of flue gas waste heat recovery water jacket furnace | |
| CN206944111U (en) | It is substantially reduced oil burning boiler caused by nitrogen oxides | |
| CN204963181U (en) | Heat exchange boiler | |
| CN205592944U (en) | Anti - coal feeding device who scurries of CFB boiler smoke protection gas | |
| CN205048730U (en) | Solid -liquid chemical energy preboiler | |
| CN209295433U (en) | A kind of fuel wind furnace | |
| CN203336816U (en) | Large horizontal type boiler for recycling smoke waste heat | |
| CN201935384U (en) | Energy-saving and environment-friendly hot blast stove | |
| CN207335140U (en) | A kind of gas-burning heating boiler for civil use | |
| CN207035478U (en) | A kind of heat reclaim unit for heating boiler | |
| CN205939672U (en) | Improve energy -saving pot stove of intake air temperature | |
| CN201522106U (en) | Heat energy reclaiming and energy-saving device for water heater | |
| CN204213900U (en) | The smokeless heat pipe boiler of a kind of ventilated type | |
| CN201688554U (en) | Atmospheric hot water heating system | |
| CN204367279U (en) | PVC foam stove heating system | |
| CN204345678U (en) | A kind of ventilation place system for boiler pnenmatic slag handling | |
| CN210485661U (en) | Heat recovery device for vertical combustion furnace | |
| CN104494034B (en) | PVC foam stove heating system | |
| CN203478345U (en) | Dust-free environment-friendly energy-saving high-efficiency accident-free safe civil heating furnace | |
| CN206861849U (en) | Biomass energy water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |