CN108662578A - A kind of circulating fluidized bed boiler feeding system - Google Patents
A kind of circulating fluidized bed boiler feeding system Download PDFInfo
- Publication number
- CN108662578A CN108662578A CN201810494424.6A CN201810494424A CN108662578A CN 108662578 A CN108662578 A CN 108662578A CN 201810494424 A CN201810494424 A CN 201810494424A CN 108662578 A CN108662578 A CN 108662578A
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- China
- Prior art keywords
- feeding
- feeding pipe
- feed
- fluidized bed
- bed boiler
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of circulating fluidized bed boiler feeding systems, feed hopper, the first feeding machanism, the first feeding pipe, the second feeding machanism and the second feeding pipe are sequentially connected to, sheave drive in first feeding machanism and the second feeding machanism send material to be moved into burner hearth, second feeding pipe is connected to the second feed shell discharge port, second feeding pipe discharge outlet is equipped with the first mechanical overhead door, and the first mechanical overhead door covers the closing of the second feeding pipe discharge port on the second feeding pipe discharge port under the circulating fluidized bed boiler feeding system closed state；Circulating fluidized bed boiler feeding system proposed by the present invention, and feed hopper and burner hearth are separated by being fed sheave, tempering phenomenon, which occurs, so as to avoid boiler causes flame to be scurried into feed hopper, simultaneously, first mechanical overhead door, which is covered, closes the second feeding pipe discharge port on the second feeding pipe discharge port, avoids the generation of tempering phenomenon.
Description
Technical field
The present invention relates to boiler plant technical field more particularly to a kind of circulating fluidized bed boiler feeding systems.
Background technology
Under normal circumstances, traditional circulating fluidized bed boiler feed inlet has a problem that, circulating fluidized bed boiler burner hearth
All it is positive pressure, is easy outside flame, easily leads to safety problem, general producer is all closed feed inlet, or increases and draw
The absorbing quantity of wind turbine, makes boiler furnace at micro-vacuum state；Both the above method has drawback, is closed, and repair is inconvenient,
And it is easily on fire under feed bin, increasing absorbing quantity makes burner hearth tiny structure, can cause waste of energy.
Invention content
To solve technical problem present in background technology, the present invention proposes a kind of circulating fluidized bed boiler feeding system.
A kind of circulating fluidized bed boiler feeding system proposed by the present invention, including it is feed hopper, the first feeding machanism, first defeated
Pipe material, the second feeding machanism and the second feeding pipe；First feeding machanism include first feed shell, first feed sheave and
First motor, the first feed shell feed inlet and feed hopper inside are connected to, and the first feeder channel wheel is rotatably installed in first for material shell
In vivo, first motor output shaft is connect with the first feed sheave for driving the rotation of the first feeder channel wheel；Second feeding machanism position
Below the first feeding machanism, the second feeding machanism includes the second feed shell, the second feed sheave and the second motor, and second supplies
Material shell body feed inlet is connected to by the first feeding pipe with the first feed shell discharge port, and the second feeder channel wheel is rotatably installed in the
In two feed shells, the second motor output shaft is connected to the second feed sheave for driving the rotation of the second feeder channel wheel；Second is defeated
Pipe material is connected to the second feed shell discharge port, and the second feeding pipe discharge outlet is equipped with the first mechanical overhead door, the cycle
The first mechanical overhead door covers the second conveying pipeline on the second feeding pipe discharge port under fluidized-bed combustion boiler feeding system closed state
Say material mouth closing.
Preferably, the first feeding pipe is arc-shaped, the first feeding pipe feed inlet direction and the first feeding pipe discharge port
In direction is generally aligned in the same plane and it is vertically arranged.
Preferably, the aperture of the first feeding pipe close to the first feeding machanism to close to the second feeding machanism from gradually increasing
Greatly.
Preferably, it is offered in the middle part of the first feeding pipe and discloses coal mouth, disclosed and be removably installed cover board on coal mouth.
Preferably, the second feeding pipe aperture close to the second feeding device to far from the second feeding device from being gradually reduced
Preferably, it is offered in the middle part of the second feeding pipe and discloses coal mouth, disclosed and be removably installed cover board on coal mouth.
Preferably, further include wind turbine, offer multiple tangent air inlets on the second feeding pipe, fan outlet with it is multiple
Tangent air inlet is connected to.
Preferably, opening is offered in the first feeding pipe bottom sidewall, the second mechanical overhead door is mounted on the by torsional spring
For by closure of openings on one feeding pipe, without under Flow of Goods and Materials or material proper flow state in the first feeding pipe, the
Two mechanical overhead doors are covered keeps closure of openings state in opening, the second mechanical overhead door under feed blocking state in the first feeding pipe
It is opened under mass expanded force effect.
Preferably, first motor rotating speed is less than the second motor speed.
In the present invention, the circulating fluidized bed boiler feeding system proposed is equipped with two between feed hopper and boiler body
A feeding machanism, feeding machanism are internally provided with feed sheave, and the rotation by being fed sheave is supplied the material to boiler furnace,
And feed hopper and burner hearth are separated by being fed sheave, tempering phenomenon, which occurs, so as to avoid boiler causes flame to scurry into charging
In bucket, meanwhile, it is equipped with the first mechanical overhead door in the second feeding pipe discharge outlet, the first mechanical overhead door is in material under feed state
Promotion under be opened, material can smoothly enter into burner hearth, and after stopping feed, the first mechanical overhead door is covered in the second feeding pipe
The second feeding pipe discharge port is closed on discharge port, further avoids the generation of tempering phenomenon.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of circulating fluidized bed boiler feeding system proposed by the present invention；
Fig. 2 is a kind of structural schematic diagram of the second feeding pipe of circulating fluidized bed boiler feeding system proposed by the present invention.
Specific implementation mode
As shown in Figs. 1-2, Fig. 1 is a kind of structural schematic diagram of circulating fluidized bed boiler feeding system proposed by the present invention,
Fig. 2 is a kind of structural schematic diagram of the second feeding pipe of circulating fluidized bed boiler feeding system proposed by the present invention.
Referring to Fig.1, a kind of circulating fluidized bed boiler feeding system proposed by the present invention, including feed hopper 1, the first feeding machine
Structure, the first feeding pipe 2, the second feeding machanism and the second feeding pipe 3；Feed hopper 1 is fixed on above the first feeding machanism, the
One feeding machanism includes that the first feed shell 41, first is fed sheave and first motor 42, the first feed 41 feed inlet of shell with
1 inside connection of feed hopper, the first feeder channel wheel are rotatably installed in the first feed shell 41,42 output shaft of first motor and first
Being fed sheave connection is used to drive the rotation of the first feeder channel wheel, the rotation of the first feeder channel wheel to drive material in feeding hopper 1 and transport downwards
It is dynamic；Second feeding machanism is located at below the first feeding machanism, and the second feeding machanism includes the second feed shell 51, the second feeder channel
Wheel and the second motor 52, the second feed 51 feed inlet of shell are fed 41 discharge port of shell by the first feeding pipe 2 and first and connect
Logical, the second feeder channel wheel is rotatably installed in the second feed shell 51, the first feeder channel wheel axis and the second feeder channel wheel axis
In being vertically arranged and being generally aligned in the same plane, 52 output shaft of the second motor be connected to the second feed sheave and is used for the second feeder channel of driving
Wheel rotation, the rotation of the second feeder channel wheel, which is driven, send material to be fed 51 feed inlet of shell to the second feed 51 discharge port of shell fortune from second
It is dynamic；Second feeding pipe 3 is connected to the second feed 51 discharge port of shell, and 3 discharge outlet of the second feeding pipe is equipped with the first machinery
Overhead door 6, the first mechanical overhead door 6 are mounted on by torsional spring on the second feeding pipe 3, do not have material inside second material conveyance conduit
In the state of conveying, the first mechanical overhead door 6 is pressed in defeated by second on 3 discharge port of the second feeding pipe by the elastic force that torsional spring generates
3 discharge port of pipe material is closed.
In the present embodiment, the first feed sheave and the second feed sheave that are arranged between feed hopper 1 and burner hearth will be fed
Bucket 1 and burner hearth separate, and tempering phenomenon, which occurs, so as to avoid boiler causes flame to be scurried into feed hopper 1, meanwhile, in the second conveying
3 discharge outlet of pipeline is equipped with the first mechanical overhead door 6, and the first mechanical overhead door 6 is opened under the promotion of material under feed state, object
Material can smoothly enter into burner hearth, and after stopping feed, the first mechanical overhead door 6 covers second on 3 discharge port of the second feeding pipe
3 discharge port of feeding pipe is closed, and the generation of tempering phenomenon is further avoided.
It is convenient for from gradually increasing to close to the second feeding machanism close to the first feeding machanism in the aperture of first feeding pipe 2
Material is moved to 2 discharge port of the first feeding pipe from 2 feed inlet of the first feeding pipe, prevents material in the first feeding pipe 2
Portion blocks；Second feeding pipe, 3 aperture makes material pressure from being gradually reduced to far from the second feeding device close to the second feeding device
Real second feeding pipe, 3 discharge port prevents from being tempered.
First feeding pipe, 2 middle part and 3 middle part of the second feeding pipe offer and disclose coal mouth, disclose and removably pacify on coal mouth
Cover board 7 can be opened after the first feeding pipe 2 or the blocking of 3 materials inside of the second feeding pipe equipped with cover board 7, it is defeated to first
It is cleared up inside pipe material 2 or the second conveying pipeline.
Further include wind turbine 9, multiple tangent air inlets 31 are offered on the second feeding pipe 3,9 air outlet of wind turbine is cut with multiple
It is connected to air inlet 31, it is defeated that the air-flow that wind turbine 9 generates passes through tangent air inlet 31,3 inside of the second feeding pipe and second successively
3 discharge port of pipe material, the material in the second conveyance conduit are moved to the second feeding pipe 3 by the air-flow that wind turbine 9 generates, to
Prevent material from being blocked inside the second conveyance conduit, while material dispels the more abundant of after-combustion through air-flow.
Opening is offered in first feeding pipe, 2 bottom sidewall, the second mechanical overhead door 8 is mounted on the first conveying by torsional spring
For by closure of openings on pipeline 2, without under Flow of Goods and Materials or material proper flow state in the first feeding pipe 2, the second machine
Tool overhead door 8 covers the holding closure of openings state in opening by torsional spring, and material will not be leaked from opening, when the first conveying
After 2 inside of pipeline blocks, the mechanical overhead door 8 of material pair second in the first feeding pipe 2 generates expansive force, when expansive force is big
After the active force of torsional spring, material will be to push the second mechanical overhead door 8 to rotate so that opening is opened, and material is revealed from opening
Out, it prevents material from being blocked in the first feeding pipe 2 and causes the damage of the first feeding machanism or 2 crimp of the first feeding pipe
Even split.
In the present embodiment, 42 rotating speed of first motor is less than 52 rotating speed of the second motor, such first feeding pipe, 2 discharge port
Material conveying speed is consistently greater than the material conveying speed of 2 feed inlet of the first feeding pipe, and material would not store up that stay in first defeated
It send in pipeline, so as to prevent the first feeding pipe 2 from blocking.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of circulating fluidized bed boiler feeding system, which is characterized in that including feed hopper (1), the first feeding machanism, first defeated
Pipe material (2), the second feeding machanism and the second feeding pipe (3)；First feeding machanism includes the first feed shell (41), first
It is fed sheave and first motor (42), is connected to inside the first feed shell (41) feed inlet and feed hopper (1), the first feed sheave
It is rotatably installed in the first feed shell (41), first motor (42) output shaft is connect with the first feed sheave for driving first
Feeder channel wheel rotates；Second feeding machanism is located at below the first feeding machanism, and the second feeding machanism includes the second feed shell
(51), the second feed sheave and the second motor (52), the second feed shell (51) feed inlet pass through the first feeding pipe (2) and the
One feed shell (41) discharge port connection, the second feeder channel wheel are rotatably installed in the second feed shell (51), the second motor
(52) output shaft is connected to the second feed sheave for driving the rotation of the second feeder channel wheel；Second feeding pipe (3) is supplied with second
Material shell body (51) discharge port is connected to, and the second feeding pipe (3) discharge outlet is equipped with the first mechanical overhead door (6), described ciculation fluidized
The first mechanical overhead door (6) is covered the second conveying on the second feeding pipe (3) discharge port under bed boiler feeding system closed state
Pipeline (3) discharge port is closed.
2. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that the first feeding pipe (2) is in
It is in arc, the first feeding pipe (2) feed inlet direction and the first feeding pipe (2) discharge port direction are generally aligned in the same plane and vertical
Setting.
3. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that the first feeding pipe (2)
Aperture close to first feeding machanism one end to close to second feeding machanism one end from gradually increasing.
4. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that in the first feeding pipe (2)
Portion, which offers, discloses coal mouth, discloses and has been removably installed cover board (7) on coal mouth.
5. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that the second feeding pipe (3) hole
Diameter close to second feeding device one end to far from second feeding device one end from being gradually reduced.
6. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that in the second feeding pipe (3)
Portion, which offers, discloses coal mouth, discloses and has been removably installed cover board (7) on coal mouth.
7. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that further include wind turbine (9), second
Multiple tangent air inlets (31) are offered on feeding pipe (3), wind turbine (9) air outlet is connected to multiple tangent air inlets (31).
8. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that the first feeding pipe (2) bottom
Opening is offered on portion's side wall, the second mechanical overhead door (8) is mounted on the first feeding pipe (2) by torsional spring for the envelope that will be open
It closes, is being open in the first feeding pipe (2) that under Flow of Goods and Materials or material proper flow state, the second mechanical overhead door (8) is not covered
Upper holding closure of openings state, the second mechanical overhead door (8) is in mass expanded power under the interior feed blocking state of the first feeding pipe (2)
Effect is lower to open.
9. circulating fluidized bed boiler feeding system according to claim 1, which is characterized in that first motor (42) rotating speed is small
In the second motor (52) rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494424.6A CN108662578B (en) | 2018-05-22 | 2018-05-22 | Feeding system of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494424.6A CN108662578B (en) | 2018-05-22 | 2018-05-22 | Feeding system of circulating fluidized bed boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662578A true CN108662578A (en) | 2018-10-16 |
| CN108662578B CN108662578B (en) | 2020-09-18 |
Family
ID=63777269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810494424.6A Active CN108662578B (en) | 2018-05-22 | 2018-05-22 | Feeding system of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662578B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758238A (en) * | 2021-09-26 | 2021-12-07 | 辽宁宝来生物能源有限公司 | Discharging structure of petroleum coke calcination rotary kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201539857U (en) * | 2009-10-21 | 2010-08-04 | 中国铝业股份有限公司 | Circulation fluid bed boiler coal-feeding tube anti-blocking device |
| CN202166052U (en) * | 2011-07-20 | 2012-03-14 | 太原锅炉集团有限公司 | Air distribution device for boiler coal supply system of recirculating fluidized bed |
| CN204648292U (en) * | 2015-05-20 | 2015-09-16 | 陈育方 | A kind of anti-backfire pay-off of biomass combustion boiler |
| CN204665325U (en) * | 2015-03-26 | 2015-09-23 | 湖北天合嘉康能源科技有限公司 | The backfire-proof material feeding device of Industrial Boiler biomass-burning fuel |
| CN204962835U (en) * | 2015-04-28 | 2016-01-13 | 武安市嘉恒节能科技有限公司 | Dual -purpose automatic feeding of biomass fuel stove |
| JP2016186395A (en) * | 2015-03-27 | 2016-10-27 | 住友重機械工業株式会社 | Conveying apparatus and gas back flow suppression method |
-
2018
- 2018-05-22 CN CN201810494424.6A patent/CN108662578B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201539857U (en) * | 2009-10-21 | 2010-08-04 | 中国铝业股份有限公司 | Circulation fluid bed boiler coal-feeding tube anti-blocking device |
| CN202166052U (en) * | 2011-07-20 | 2012-03-14 | 太原锅炉集团有限公司 | Air distribution device for boiler coal supply system of recirculating fluidized bed |
| CN204665325U (en) * | 2015-03-26 | 2015-09-23 | 湖北天合嘉康能源科技有限公司 | The backfire-proof material feeding device of Industrial Boiler biomass-burning fuel |
| JP2016186395A (en) * | 2015-03-27 | 2016-10-27 | 住友重機械工業株式会社 | Conveying apparatus and gas back flow suppression method |
| CN204962835U (en) * | 2015-04-28 | 2016-01-13 | 武安市嘉恒节能科技有限公司 | Dual -purpose automatic feeding of biomass fuel stove |
| CN204648292U (en) * | 2015-05-20 | 2015-09-16 | 陈育方 | A kind of anti-backfire pay-off of biomass combustion boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758238A (en) * | 2021-09-26 | 2021-12-07 | 辽宁宝来生物能源有限公司 | Discharging structure of petroleum coke calcination rotary kiln |
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| Publication number | Publication date |
|---|---|
| CN108662578B (en) | 2020-09-18 |
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