CN205782889U - It is beneficial to discharge air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing - Google Patents
It is beneficial to discharge air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing Download PDFInfo
- Publication number
- CN205782889U CN205782889U CN201620417337.7U CN201620417337U CN205782889U CN 205782889 U CN205782889 U CN 205782889U CN 201620417337 U CN201620417337 U CN 201620417337U CN 205782889 U CN205782889 U CN 205782889U
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- air
- distribution plate
- bulky grain
- beneficial
- grain thing
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
This utility model relates to a kind of air-distribution device and multipath circulating fluidized bed boiler being beneficial to discharge bulky grain thing, horizontal air distribution plate (28) therein is horizontally disposed, and inclined distributor (27) is downward-sloping from horizontal air distribution plate (28) edge and is located in the middle part of burner hearth after docking with horizontal air distribution plate (28)；Horizontal air distribution plate (28) and inclined distributor (27) remaining edge are fixed on burner hearth inner ring；Horizontal air distribution plate (28) is upper arranges some second blast caps (26)；First blast cap (25) of some orientable air-out is set on inclined distributor (27)；First air compartment (23) is inclined distributor (27) air feed；Second air compartment (24) is horizontal air distribution plate (28) air feed；Slag dropping tube (22) cloth is in inclined distributor (27) the same side and is positioned at tilting section lowest part.The bulky grain thing disturbing the uniform air-out of air distribution plate can be discharged by this utility model smoothly, it is thus possible to material is fluidized by continuous uniform in ensureing burner hearth.
Description
Technical field
This utility model relates to rubbish and the field of industrial waste process, especially relates to a kind of row of being beneficial to
Go out air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing.
Background technology
During Incineration in CFB rubbish with industrial waste, in burner hearth, material is by continuous uniform stream
Change the key being to ensure that whether rubbish and industrial waste are successfully processed.
The structure of current CFBB as depicted in figs. 1 and 2, comprising: furnace wall 6, wear
Cross the feed pipe 1 of furnace wall feeding, the air distribution plate 5 being horizontally set in the burner hearth that furnace wall 6 wraps up, arrange
Air compartment 4 and scum pipe 3 bottom air distribution plate 5, it is staggered in arrangement the some blast caps on air distribution plate 5
2。
Air distribution plate 5, by being blown out from the gas in air compartment 4 by some blast caps 2, is made by feed pipe 1
Enter and burn under the rubbish of burner hearth of furnace wall 6 parcel or industrial waste fluidisation the high temperature action in burner hearth
Burn, the most non-combustible bulky grain thing or unburnt bulky grain slag thing (being referred to as bulky grain thing) meeting
Fall after rise under gravity on air distribution plate 5, discharged by air distribution plate 5 scum pipe 3 below.By
Only one of which air compartment bottom this air distribution plate 5, and whole air distribution plate 5 is in same level,
Once bulky grain thing falls after rise on air distribution plate 5, and the uniform air-out of air distribution plate not only can be disturbed to affect stove
In thorax, material is fluidized by continuous uniform, is also easily caused bulky grain thing and can not be rolled to smoothly at scum pipe 3
To affect its discharge, and then affect the properly functioning of boiler, urgent blowing out accident even occurs, causes
Economic benefit is impaired.
Utility model content
The purpose of this utility model is for the problem that presently, there are, it is provided that one is beneficial to discharge bulky grain
The air-distribution device of thing and CFBB, it can will disturb the bulky grain of the uniform air-out of air distribution plate
Thing is discharged smoothly such that it is able in ensureing burner hearth, material is fluidized by continuous uniform.
The purpose of this utility model is achieved through the following technical solutions:
First purpose of the present utility model is to provide a kind of air-distribution device being beneficial to discharge bulky grain thing, its
Including:
Slag dropping tube, the first air compartment, the second air compartment, inclined distributor and horizontal air distribution plate；
Horizontal air distribution plate is horizontally disposed, and inclined distributor dips down from one end edge of horizontal air distribution plate
The middle part of boiler hearth of circulating fluidized bed it is arranged on horizontal air distribution plate after tiltedly and docking；Horizontal air distribution plate
Plate Welding is passed through at burner hearth inner ring with the remaining edge of inclined distributor；
Some blast caps are arranged on described horizontal air distribution plate and described inclined distributor；
Described first air compartment is inclined distributor air feed；Described second air compartment is horizontal air distribution plate air feed；
Described slag dropping tube is arranged in inclined distributor the same side and is positioned at the minimum of inclined distributor tilting section
Place.
It is highly preferred that described blast cap includes the second blast cap of symmetrical air-out, described second blast cap stagger arrangement cloth
Put on horizontal air distribution plate.
It is highly preferred that described blast cap also includes the first blast cap orienting air-out, described first blast cap in-line
It is arranged on inclined distributor.
Same a line it is positioned at it when the air-out direction of first blast cap in prostatitis staggers it is highly preferred that described
First blast cap in prostatitis.
It is highly preferred that the air outlet of described first blast cap is in slag dropping tube the same side.
It is highly preferred that described first blast cap includes:
Reducer pipe, straight tube and the elbow both connection；The path side of reducer pipe is air outlet, reducer pipe
Side, big footpath connect with elbow；The opposite side of elbow connects with straight tube, and straight tube passes perpendicularly through inclination cloth wind
Plate exhaust vent is also fixed together with inclined distributor and border good seal.
It is highly preferred that meet between air outlet diameter phi b of diameter phi a of described straight tube and reducer pipe:
φ b ＜ φ a.
It is highly preferred that the angle a between described inclined distributor and horizontal line meets: a≤30 °.
It is highly preferred that the width W1 of described horizontal air distribution plate and the floor projection of described inclined distributor
Relation between width W2 meets:
W1+W2=W；W1/W≤1/2；
W therein is the horizontal cross-section width within burner hearth.
The present invention also provides for a kind of multipath circulating fluidized bed boiler, comprising:
Above-mentioned any one is beneficial to discharge the air-distribution device of bulky grain thing, feed pipe and furnace wall；
The inside of furnace wall surrounding parcel is burner hearth；The air-distribution device being beneficial to discharge bulky grain thing is arranged on stove
In the middle part of thorax；Feed pipe is inclined at the described inclination cloth being beneficial to and discharging in the air-distribution device of bulky grain thing
The same side of aerofoil, fuel is fed in recirculating fluidized bed burner hearth by gravity.
By above-mentioned the technical solution of the utility model it can be seen that this utility model has following technology effect
Really:
1, be combined with inclined distributor by horizontal air distribution plate, and deslagging is set in inclined distributor bottom
Pipe, is conducive to discharging unburnt bulky grain thing and non-flammable bulky grain thing.
2, by the first blast cap of the orientable air-out of configuration on inclined distributor, and the going out of wind cap
Air port is towards slag notch, it is possible to be more beneficial for deslagging.
3, by being respectively configured the air compartment air distribution of independent control for horizontal air distribution plate and inclined distributor, real
Show and optionally controlled blast and air quantity, it is possible to big of the uniform air-out of air distribution plate will have been disturbed more in time
Grain thing is discharged smoothly.
Accompanying drawing explanation
Fig. 1 is the front view of existing fluidized-bed combustion boiler structure；
Fig. 2 is the A-A view of Fig. 1；
Fig. 3 is the front view of this utility model air-distribution device；
Fig. 4 is the B-B view of Fig. 3；
Fig. 5 is the structural representation of this utility model the first blast cap；
Fig. 6 is the structural representation of this utility model the second blast cap；
Fig. 7 be slag dropping tube in a unit of the present utility model, horizontal air distribution plate, inclined distributor,
Position relationship schematic diagram between second blast cap and the first blast cap；
Fig. 8 is the first blast cap and the another kind of layout rules schematic diagram of the second blast cap in this utility model.
In accompanying drawing:
Feed pipe 1, blast cap 2, scum pipe 3, air compartment 4, air distribution plate 5, furnace wall 6；Slag dropping tube 22,
First air compartment the 23, second air compartment the 24, first blast cap the 25, second blast cap 26, inclined distributor 27,
Horizontal air distribution plate 28；Reducer pipe 251, straight tube 252, elbow 253；Cap head 261 and ventilation straight tube 262；
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme of the application, below with reference to
This utility model is described in further details by accompanying drawing.
The orientation terms such as upper and lower, left and right in present specification, front and rear are based on shown in accompanying drawing
Position relationship and set up.Accompanying drawing is different, then corresponding position relationship is also possible to become therewith
Change, therefore the restriction to protection domain can not be interpreted as with this.
Embodiment one:
This utility model provides a kind of air-distribution device being beneficial to discharge bulky grain thing, its structure such as Fig. 3-Fig. 4
Shown in, including:
Slag dropping tube the 22, first air compartment the 23, second air compartment the 24, first blast cap the 25, second blast cap 26,
Inclined distributor 27, horizontal air distribution plate 28.
Horizontal air distribution plate 28 is horizontally disposed, and inclined distributor 27 is from an end margin of horizontal air distribution plate 28
Locate middle part that is downward-sloping and that be arranged on boiler hearth of circulating fluidized bed with horizontal air distribution plate 28 after docking；
The remaining edge of horizontal air distribution plate 28 and inclined distributor 27 passes through Plate Welding at burner hearth inner ring；Water
Plain cloth aerofoil 28 horizontal width is designated as W1；The floor projection width of inclined distributor 27 is designated as W2,
And the angle between horizontal line is designated as inclination angle a, in order to ensure from inclined distributor 27 out air quantity and
Blast meets its rubbish being sent to above or industrial waste can be by the requirement of uniform vaporization, this inclination
Angle a meets: a≤30 °；Relation between above-mentioned W1 and W2 meets:
W1+W2=W；W1/W≤1/2；
W therein is the horizontal cross-section width within burner hearth.
Horizontal air distribution plate 28 is arranged several second blast caps 26, inclined distributor 27 is arranged
Some first blast caps 25, the queueing discipline of blast cap is as shown in Figure 4, specific as follows:
Stagger arrangement and be evenly arranged several the second blast caps 26 on horizontal air distribution plate 28.When specifically arranging,
Take two the second blast caps 26 of odd column adjacent lines, by dividing equally of the distance between the two the second blast cap 26
Line, as the row centrage of the second blast cap 26 of even column, arranges the second of even column with this row centrage
Blast cap 26.Distance between adjacent odd column and even column is equal.
In-line and be evenly arranged some first blast caps 25 on inclined distributor 27.When specifically arranging, with
First blast cap 25 is that basic point arranges the first blast cap 25 with the center of inclined distributor 27 joining part, and
Ensure that Nth row first blast cap 25 of odd column is positioned at same with Nth row first blast cap 25 of even column
OK.
Fall slag for convenience, when arranging this first blast cap 25, needs the air-out of this first blast cap 25
Mouth is in slag dropping tube 22 the same side.In order to avoid the air-out of the first blast cap 25 is the most disturbed and ensures next-door neighbour
The prostatitis blast cap of the first blast cap 25 of current location is not blown bad, when arranging the first blast cap 25, protects
Card staggers first blast cap in the prostatitis being positioned at same a line with it when the air-out direction of the first blast cap 25 in prostatitis
25。
The structure of the first blast cap 25 is as it is shown in figure 5, include: reducer pipe 251, straight tube 252 and connection
The elbow 253 of the two, the path side of reducer pipe 251 is air outlet, and the side, big footpath of reducer pipe 251 is with curved
253 connect；Angle between bus and the centrage of reducer pipe 251 is θ/2, the setting of this angle
Being the flow velocity in order to improve wind, the value of θ meets: 3 °≤θ≤8 °.The opposite side of elbow 253 with
Straight tube 252 connects, straight tube 252 pass perpendicularly through inclined distributor 27 exhaust vent and with inclined distributor 27
It is fixed together and border good seal.The diameter of straight tube 252 is designated as φ a, the air outlet of reducer pipe 251
Diameter is designated as φ b, has certain pressure, diameter phi a of straight tube 252 and reducer pipe to meet air-out
Need to meet between air outlet diameter phi b of 251:
φ b ＜ φ a
Reducer pipe 251, straight tube 252 and elbow 253 in above-mentioned first blast cap 25, can weld and
Become, it is also possible to utilize mould to be integrally cast.
The structure of the second blast cap 26 as shown in Figure 6, including cap head 261 and ventilation straight tube 262.Cap head
261 hollow structures closed for one end, this hollow structure is connected with the passage of ventilation straight tube 262；
The periphery of cap head 261 has several ventholes communicated with hollow structure；Ventilation straight tube 262 penetrates
Horizontal air distribution plate 28 is also fixed together and border good seal with horizontal air distribution plate 28.
First air compartment 23 and the second air compartment 24 are independently arranged；Wherein the first air compartment 23 is arranged on and inclines
Tiltedly below air distribution plate 27, for inclined distributor 27 air feed；Second air compartment 24 therein is arranged on level
The lower section of air distribution plate 28, for horizontal air distribution plate 28 air feed；First air compartment 23 and the second air compartment 24 points
Not being provided with Valve controlling intake and blast, the blast in the first air compartment 23 and the second air compartment 24 is permissible
Equal, it is also possible to unequal, regulate alone, reasonable air feed.
Slag dropping tube 22 uses deslagging on bed, and it is arranged on the same side of inclined distributor 27.For side
Just deslagging, is more preferably arranged on the lower end lowest part of inclined distributor 27, deslagging by slag dropping tube 22
Amount is adjusted by door flashboard.Slag dropping tube 22 uses big orifice pipe, and its height is H0, and width is
B0.Preferably H0 and B0 meets: 20mm≤H0≤200mm, width B0=(1/2～4) H0.
According to different boiler parameters, slag dropping tube 22 can arrange several.This slag dropping tube 22 is permissible
Position according to the slag that conveniently falls arbitrarily is arranged, but inclined distributor 27 parts are also required to correspondingly arrange
In the same side of slag dropping tube 22, understand for convenience, can by slag dropping tube 22, horizontal air distribution plate 28,
Inclined distributor the 27, second blast cap 26 and the first blast cap 25 as a unit, each portion in unit
Position relationship between part is as shown in Figure 7.When arranging multiple slag dropping tube 22, first according to falling slag point
Position determine the position of slag dropping tube 22, then according to all parts in unit as shown in Figure 7
Between position relationship at other parts of corresponding location arrangements.
Above-mentioned first blast cap the 25, second blast cap 26, inclined distributor 27 and horizontal air distribution plate 28 are all adopted
Make of heat-resisting steels.
Above-described embodiment one is as a example by the queueing discipline shown in Fig. 4, arrange at inclined distributor 27
One blast cap 25 and arrange the second blast cap 26 on horizontal air distribution plate 28, but this utility model not office
Being limited to this, its queueing discipline that can also take other form arranges the first blast cap 25 and the second blast cap
26.As a example by a unit, the queueing discipline shown in Fig. 8 can be used to arrange at inclined distributor 27
First blast cap 25 and arrange the second blast cap 26 on horizontal air distribution plate 28.From figure 8, it is seen that
When arranging the first blast cap 25 on inclined distributor 27, it then follows arrange principle as follows:
1) for being close to the first blast cap 25 of the first row of slag dropping tube 22:
The most centrally located can fall in the range of slag dropping tube 22 caliber extension line is covered some
First blast cap 25, the floor projection centrage of its air outlet and the centerline parallel of slag dropping tube 22；Wherein
Fail some first blast caps 25 fallen in the range of slag dropping tube 22 caliber extension line is covered, its air-out
Mouth is towards slag dropping tube 22, and the floor projection centrage of air outlet can extend to the caliber of slag dropping tube 22
In.
2) the first blast cap 25 that other is arranged:
The first blast cap 25, going out of the first blast cap 25 it is arranged symmetrically with slag dropping tube 22 centrage for demarcation line
Air port is all towards slag dropping tube 22.And, it is positioned at the first blast cap 25 of slag dropping tube 22 centrage side,
It is parallel to each other with the floor projection centrage of the first blast caps 25 of a line and adjacent two row and therebetween
Distance is more than the external diameter of the air outlet of the first blast cap 25.
Embodiment two:
This utility model also provides for a kind of CFBB, comprising: being beneficial in embodiment one
Discharge the air-distribution device of bulky grain thing, feed pipe 1 and furnace wall 6.
Furnace wall 6 is fire-resistant, wear-resisting and insulation furnace wall, and the inside of its surrounding parcel is burner hearth, the row of being beneficial to
Go out the inclined distributor 27 in the air-distribution device of bulky grain thing and horizontal air distribution plate 28 is arranged in burner hearth
Portion, horizontal air distribution plate 28 is staggered in arrangement several second blast caps 26, has independent air compartment air feed below；
Several first blast caps 25 of in-line arrangement on inclined distributor 27, configure independent air compartment air feed below；Fall
Slag pipe 22 is arranged on the lower end lowest part of inclined distributor 27, and has slide valve to be adjusted.
Feed pipe 1 is obliquely installed, and feeding mouth is higher than discharging opening, and discharging opening passes furnace wall 6, and fuel passes through
Gravity feeds in recirculating fluidized bed burner hearth.Feed pipe 1 is arranged on the same side of inclined distributor 27, this
Sample ensure that feed is favoured the territory, wind region of air distribution plate 27.Meet bulky grain thing, then at gravity
Can fall under Zuo Yong to inclined distributor 27, this bulky grain thing is discharged under the influence of orientation wind smoothly then.
Although this utility model is open as above with preferred embodiment, but embodiment does not limit this practicality
Novel.Without departing from the spirit and scope of this utility model, any equivalence done changes or retouching,
Also belong to the protection domain of this utility model.Protection domain the most of the present utility model should be with this Shen
The content that claim please is defined is standard.
Claims (10)
1. the air-distribution device being beneficial to discharge bulky grain thing, it is characterised in that the described air-distribution device being beneficial to discharge bulky grain thing includes:
Slag dropping tube (22), the first air compartment (23), the second air compartment (24), inclined distributor (27) and horizontal air distribution plate (28)；
Horizontal air distribution plate (28) is horizontally disposed, and inclined distributor (27) is downward-sloping from one end edge of horizontal air distribution plate (28) and is arranged on the middle part of boiler hearth of circulating fluidized bed with horizontal air distribution plate (28) after docking；The remaining edge of horizontal air distribution plate (28) and inclined distributor (27) passes through Plate Welding at burner hearth inner ring；
Described horizontal air distribution plate (28) and described inclined distributor (27) the some blast caps of upper layout；
Described first air compartment (23) is inclined distributor (27) air feed；Described second air compartment (24) is horizontal air distribution plate (28) air feed；
Described slag dropping tube (22) is arranged in inclined distributor (27) the same side and is positioned at the lowest part of inclined distributor (27) tilting section.
A kind of air-distribution device being beneficial to discharge bulky grain thing, it is characterized in that, described blast cap includes second blast cap (26) of symmetrical air-out, and described second blast cap (26) is staggered in arrangement on horizontal air distribution plate (28).
A kind of air-distribution device being beneficial to discharge bulky grain thing the most according to claim 1 or claim 2, it is characterized in that, described blast cap also includes the first blast cap (25) orienting air-out, and described first blast cap (25) in-line arrangement is on inclined distributor (27).
A kind of air-distribution device being beneficial to discharge bulky grain thing, it is characterised in that described stagger first blast cap (25) in the prostatitis being positioned at same a line with it when the air-out direction of first blast cap (25) in prostatitis.
A kind of air-distribution device being beneficial to discharge bulky grain thing, it is characterised in that the air outlet of described first blast cap (25) is in slag dropping tube (22) the same side.
A kind of air-distribution device being beneficial to discharge bulky grain thing, it is characterised in that described first blast cap (25) including:
Reducer pipe (251), straight tube (252) and connect the two elbow (253)；The path side of reducer pipe (251) is air outlet, and the side, big footpath of reducer pipe (251) connects with elbow (253)；The opposite side of elbow (253) connects with straight tube (252), and straight tube (252) passes perpendicularly through inclined distributor (27) exhaust vent and is fixed together and border good seal with inclined distributor (27).
A kind of air-distribution device being beneficial to discharge bulky grain thing the most according to claim 6, it is characterised in that meet between diameter phi a and air outlet diameter phi b of reducer pipe (251) of described straight tube (252):
φ b ＜ φ a.
A kind of air-distribution device being beneficial to discharge bulky grain thing the most according to claim 1, it is characterised in that the angle a between described inclined distributor (27) and horizontal line meets: a≤30 °.
A kind of air-distribution device being beneficial to discharge bulky grain thing, it is characterised in that the relation between the width W1 and the floor projection width W2 of described inclined distributor (27) of described horizontal air distribution plate (28) meets:
W1+W2=W；W1/W≤1/2；
W therein is the horizontal cross-section width within burner hearth.
10. a multipath circulating fluidized bed boiler, it is characterised in that described multipath circulating fluidized bed boiler includes:
A kind of being beneficial to described in claim 1 to 9 any one discharges the air-distribution device of bulky grain thing, feed pipe (1) and furnace wall (6)；
The inside of furnace wall (6) surrounding parcel is burner hearth；The air-distribution device being beneficial to discharge bulky grain thing is arranged in the middle part of burner hearth；Feed pipe (1) is inclined at described the same side being beneficial to discharge the inclined distributor in the air-distribution device of bulky grain thing, and fuel is fed in recirculating fluidized bed burner hearth by gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417337.7U CN205782889U (en) | 2016-05-10 | 2016-05-10 | It is beneficial to discharge air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417337.7U CN205782889U (en) | 2016-05-10 | 2016-05-10 | It is beneficial to discharge air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205782889U true CN205782889U (en) | 2016-12-07 |
Family
ID=57412771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417337.7U Expired - Fee Related CN205782889U (en) | 2016-05-10 | 2016-05-10 | It is beneficial to discharge air-distribution device and the multipath circulating fluidized bed boiler of bulky grain thing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205782889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927972A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Wind distribution device facilitating discharging of big particle matter and multi-flow circulating fluidized bed boiler |
-
2016
- 2016-05-10 CN CN201620417337.7U patent/CN205782889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927972A (en) * | 2016-05-10 | 2016-09-07 | 北京热华能源科技有限公司 | Wind distribution device facilitating discharging of big particle matter and multi-flow circulating fluidized bed boiler |
| CN105927972B (en) * | 2016-05-10 | 2018-12-11 | 北京热华能源科技有限公司 | Conducive to the air-distribution device and multipath circulating fluidized bed boiler of discharge large particle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161207 Termination date: 20190510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |