CN206257663U - CFBB is with without blocking coal sorting feeder - Google Patents
CFBB is with without blocking coal sorting feeder Download PDFInfo
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- CN206257663U CN206257663U CN201621375471.1U CN201621375471U CN206257663U CN 206257663 U CN206257663 U CN 206257663U CN 201621375471 U CN201621375471 U CN 201621375471U CN 206257663 U CN206257663 U CN 206257663U
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Abstract
The utility model is related to a kind of CFBB with without blocking coal sorting feeder, belong to circulating fluidized bed technique field, including without blocking coal sorting feeder coal chute vertical section, expansion bend and without block coal sorting feeder coal chute tilting section, rectangular square tube is without blocking coal sorting feeder coal chute vertical section and without coal sorting feeder coal chute tilting section is blocked, it is divided into pipe and vertical section down tube two parts on vertical section without coal sorting feeder coal chute vertical section is blocked, the lower end of pipe is plugged in vertical section down tube on vertical section, the connection of vertical section down tube is without blocking coal sorting feeder coal chute tilting section, vertical section down tube is being provided with the outlet of the first mattress with without the junction for blocking coal sorting feeder coal chute tilting section, the outlet of the second mattress is provided with without the bottom surface for blocking coal sorting feeder coal chute tilting section, 3rd mattress is exported and fluid bed air compartment.The device can be smooth by boiler oil coal and can equably be sowed in burner hearth in dispersed using air force, coal is sufficiently mixed conflagration with air.
Description
Technical field
The utility model is related to a kind of CFBB with without coal sorting feeder is blocked, and belongs to circulating fluidised bed apparatus skill
Art field.
Background technology
Circulating fluidized bed combustion coal boiler be it is generally acknowledged can be in pot desulfuration in furnace and low-nitrogen discharged environment-friendly boiler, coal
It is applied widely, widelyd popularize and popularized in China.The type boiler runs into coal-fired moisture in actual use
When slightly higher, viscosity increases, easily there is coal breakage blockage so as to cause disconnected coal blowing out accident, its reason to be mainly existing coal spout
It is serious improper that the coal spread wind machine air inlet mode design of mostly tubular type, and adapted is present, and causes to block disconnected coal accident and often occurs.
And coal is in fluosolids emulsion zone in concentration beam impacts stove, it is impossible to preferably with air mixed combustion, uncombusted in slag
Coal particles it is more, phosphorus content is high in thus resulting in slag, and heavier economic loss is caused to boiler user.
The reason for tubular type coal spout easily blocks coal be coal particles when along tilting section to stove chamber inner movement, except forward
Motion is outer, be also in coal particles on higher position along motion from inside pipe wall to center, this causes to the motion at center
Coal particles extrude mutually the upward lifting of arch camber, and final bridging forms blocking.
Utility model content
According to deficiency of the prior art above, the technical problems to be solved in the utility model is：A kind of recycle stream is provided
Fluidized bed boiler can be smooth by boiler oil coal and can equably be broadcast using air force with without coal sorting feeder is blocked in dispersed
It is spread in burner hearth, and then coal is sufficiently mixed conflagration with air.
CFBB described in the utility model with without block coal sorting feeder, including without block the defeated coal of coal sorting feeder
Pipe vertical section, expansion bend and without blocking coal sorting feeder coal chute tilting section, without blocking coal sorting feeder coal chute vertical section and without stifled
Plug coal sorting feeder coal chute tilting section is rectangular square tube, without block coal sorting feeder coal chute vertical section be divided on vertical section pipe and
Vertical section down tube two parts, the lower end of pipe is plugged in vertical section down tube on vertical section, pipe lower end outer wall and vertical on vertical section
Square tube annulus gap is formed in splicing position between the lower inside pipe wall of section, annular air compartment is provided with square tube annulus gap, managed on vertical section
Expansion bend is set with the splicing position with vertical section down tube, vertical section down tube is connected without blocking coal sorting feeder coal chute tilting section,
Vertical section down tube is being provided with the outlet of the first mattress with without the junction for blocking coal sorting feeder coal chute tilting section, and coal is broadcast without blocking
The epimere bottom surface of device coal chute tilting section is provided with the outlet of the second mattress, without under blocking coal sorting feeder coal chute tilting section
Section bottom surface is provided with the outlet of the 3rd mattress and fluid bed air compartment.
During work, steam coal is initially entered without whereabouts in blocking coal sorting feeder coal chute vertical section from after feeder discharge,
The coal stream of whereabouts is subject to the push of the coal spread wind sent from feeder coal outlet and accelerates to fall, and coal stream passes through expansion bend interior conduit
Pushed by coal spread wind curtain at square tube annulus gap again afterwards, falling speed further gets a promotion, so quick coal flowing
Can be larger, more it is difficult to stick to and broadcasts in coal device vias inner walls and result in blockage.To prevent high speed coal from wandering to tilting section base plate
Adhered to when upper, and be also provided with mattress outlet and fluid bed air compartment, coal spread wind is by air port on tilting section plane bottom plate
A mattress is formd, the coal stream that high speed falls is kept apart with tilting section base plate, so as to prevent wet viscous coal from sticking to inclination
Resulted in blockage on section base plate, and prevent bottom plate wear, substantially reduce the rapid wear materials'use amount for broadcasting coal device.
Preferably, expansion bend is connected with expansion bend compressed air as cleaningagent inlet tube, and the effect of expansion bend is ensured without stifled
Plug coal sorting feeder coal chute tilting section will not be broken without the blocking defeated coal of coal sorting feeder after following the elongation of boiler water wall expanded by heating
Pipe vertical section, expansion bend compressed air as cleaningagent inlet tube is mainly cleaned with compressed air to expansion bend.
Preferably, vertical section down tube is connected with annular air compartment's compressed air inlet pipe, annular wind at square tube annulus gap
Chamber pressure contracting air inlet duct also connects the outlet of the first mattress.
Preferably, the second mattress outlet has compressed air inlet to manage.
Preferably, fluid bed air compartment is connected with fluid bed air compartment compressed air inlet pipe, and fluid bed air compartment compressed air enters
Also the 3rd mattress of the connection outlet of mouth pipe.
Preferably, fluid bed air compartment and the joint face without blocking coal sorting feeder coal chute tilting section are provided with fluid bed exhaust vent
Plate, is conducive to upwards being blown afloat along the coal of tilting section flows.
The utility model is had an advantageous effect in that compared with prior art：
CFBB is set mattress and is exported and fluid bed with reasonable in design without coal sorting feeder is blocked by many places
Air compartment, make use of air force to keep apart coal particles with without the inwall for blocking coal sorting feeder, wet viscous so as to greatly reduce
Coal is attached on the possibility on inwall, has prevented coal blocking accident, it is ensured that the lasting normal work of coal-burning boiler.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, managed on vertical section；2nd, expansion bend；3rd, annular air compartment；4th, vertical section down tube；5th, it is defeated without coal sorting feeder is blocked
Coal pipe tilting section；6th, fluid bed air-out orifice plate；7th, fluid bed air compartment；8th, fluid bed air compartment compressed air inlet pipe；9th, the 3rd is empty
Air cushion is exported；10th, compressed air inlet pipe；11st, the second mattress outlet；12nd, the first mattress outlet；13rd, annular air compartment's pressure
Contracting air inlet duct；14th, square tube annulus gap；15th, expansion bend compressed air as cleaningagent inlet tube.
Specific embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, CFBB with without block coal sorting feeder include without block coal sorting feeder coal chute it is vertical
Section, expansion bend 2 and without blocking coal sorting feeder coal chute tilting section 5, without blocking coal sorting feeder coal chute vertical section and broadcast without blocking
Device for coal coal chute tilting section 5 is rectangular square tube, is divided on vertical section pipe 1 and hangs down without coal sorting feeder coal chute vertical section is blocked
The two parts of straight section down tube 4, the lower end of pipe 1 is plugged in vertical section down tube 4 on vertical section, on vertical section the lower end outer wall of pipe 1 and hang down
Square tube annulus gap 14 is formed in splicing position between the inwall of straight section down tube 4, annular air compartment 3 is provided with square tube annulus gap 14, hung down
Pipe 1 is set with expansion bend 2 in the splicing position with vertical section down tube 4 on straight section, and vertical section down tube 4 connects defeated without coal sorting feeder is blocked
Coal pipe tilting section 5, vertical section down tube 4 is being provided with the first mattress with without the junction for blocking coal sorting feeder coal chute tilting section 5
Outlet 12, the second mattress outlet 11 is provided with without the epimere bottom surface for blocking coal sorting feeder coal chute tilting section 5, and coal is broadcast without blocking
The hypomere bottom surface of device coal chute tilting section 5 is provided with the 3rd mattress and exports 9 and fluid bed air compartment 7.
Expansion bend 2 is connected with expansion bend compressed air as cleaningagent inlet tube 15.
Vertical section down tube 4 is connected with annular air compartment's compressed air inlet pipe 13, annular air compartment at square tube annulus gap 14
Compressed air inlet pipe 13 also connects the first mattress outlet 12.
Second mattress outlet 11 is communicated with compressed air inlet pipe 10.
Fluid bed air compartment 7 is connected with fluid bed air compartment compressed air inlet pipe 8, and fluid bed air compartment 7 also connects the 3rd air
Get mouth 9 discard.
Fluid bed air compartment 7 and the joint face without blocking coal sorting feeder coal chute tilting section 5 are provided with fluid bed air-out orifice plate 6.
There is hole on the inwall of annular air compartment 3, so that the compressed air in annular air compartment 3 is oriented into square tube annulus gap 14,
The compressed air that square tube annulus gap 14 is produced by boasting forms a ring shaped air-cushion vertically downward, easily will stick on inwall
Viscous wet coal keep apart with inwall, to form blocking so as to prevent coal to adhere to.Annular air compartment's compressed air inlet pipe 13 is also same
When to the first mattress outlet 12 provide compressed airs.Compressed air inlet pipe 10 is that the second mattress outlet 11 provides compression sky
Gas, annular air compartment's compressed air inlet pipe 13 is that fluid bed air compartment 7 provides compressed air, and fluid bed air compartment 7 is fluid bed air-out
The mattress of orifice plate 6 and the 3rd outlet 9 provides compressed air simultaneously.
During real work, without blocking the coal sorting feeder coal chute vertical section coal of discharge closed coal feeding machine and be pressed into
Coal spread wind is oriented to without coal sorting feeder coal chute tilting section 5 is blocked, without blocking coal sorting feeder coal chute tilting section by expansion bend 2
Coal in 5 obtains the acceleration power that square tube annulus gap 14 blows out air-flow, have also obtained the first mattress outlet 12, second
Mattress outlet 11 and the 3rd mattress outlet 9 blow out the acceleration power F1 of air-flow, when coal enters into fluid bed air-out orifice plate 6
When upper, upward air flow power F2 was obtained.F1 and F2 make a concerted effort to be F3 that the air-flow size of control F1 and F2 makes F3 be approximate water
Square to coal particles are uniformly sowed in burner hearth along F3 directions.Coal decentralization increases, and coal particles mix with air
It is more uniform, so as to improve coal-fired speed and efficiency, while increased the dropping distance of coal particles, also just extend burning
Time, so as to reduce the phosphorus content in slag.
Claims (6)
1. a kind of CFBB is with without blocking coal sorting feeder, including without blocking coal sorting feeder coal chute vertical section, flexible
Device (2) and without block coal sorting feeder coal chute tilting section (5), it is characterised in that：Without block coal sorting feeder coal chute vertical section and
Rectangular square tube is without coal sorting feeder coal chute tilting section (5) is blocked, is divided into vertically without coal sorting feeder coal chute vertical section is blocked
Duan Shangguan (1) and vertical section down tube (4) two parts, the lower end that (1) is managed on vertical section are plugged in vertical section down tube (4), vertically
Between Duan Shangguan (1) lower end outer walls and vertical section down tube (4) inwall square tube annulus gap (14), square tube annular are formed in splicing position
Air gap (14) place is provided with annular air compartment (3), (1) is managed on vertical section and is set with expansion bend in the splicing position with vertical section down tube (4)
(2), vertical section down tube (4) connection is broadcast without coal sorting feeder coal chute tilting section (5), vertical section down tube (4) is blocked with without blocking
The junction of device for coal coal chute tilting section (5) is provided with the first mattress outlet (12), is inclined without coal sorting feeder coal chute is blocked
The epimere bottom surface of section (5) is provided with the second mattress outlet (11), without the hypomere bottom for blocking coal sorting feeder coal chute tilting section (5)
Face is provided with the 3rd mattress outlet (9) and fluid bed air compartment (7).
2. CFBB according to claim 1 is with without blocking coal sorting feeder, it is characterised in that：Described is flexible
Device (2) is connected with expansion bend compressed air as cleaningagent inlet tube (15).
3. CFBB according to claim 1 is with without blocking coal sorting feeder, it is characterised in that：Described is vertical
Section down tube (4) is connected with annular air compartment compressed air inlet pipe (13) at square tube annulus gap (14) place, and annular air compartment's compression is empty
Gas inlet tube (13) also connects the first mattress outlet (12).
4. CFBB according to claim 1 is with without blocking coal sorting feeder, it is characterised in that：Described second
Mattress outlet (11) is communicated with compressed air inlet pipe (10).
5. CFBB according to claim 1 is with without blocking coal sorting feeder, it is characterised in that：Described fluidisation
Bed air compartment (7) is connected with fluid bed air compartment compressed air inlet pipe (8), and fluid bed air compartment (7) also connects the outlet of the 3rd mattress
(9)。
6. CFBB according to claim 1 is with without blocking coal sorting feeder, it is characterised in that：Described fluidisation
Bed air compartment (7) and the joint face without blocking coal sorting feeder coal chute tilting section (5) are provided with fluid bed air-out orifice plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375471.1U CN206257663U (en) | 2016-12-14 | 2016-12-14 | CFBB is with without blocking coal sorting feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621375471.1U CN206257663U (en) | 2016-12-14 | 2016-12-14 | CFBB is with without blocking coal sorting feeder |
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| Publication Number | Publication Date |
|---|---|
| CN206257663U true CN206257663U (en) | 2017-06-16 |
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ID=59029139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621375471.1U Active CN206257663U (en) | 2016-12-14 | 2016-12-14 | CFBB is with without blocking coal sorting feeder |
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| CN (1) | CN206257663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642094A (en) * | 2016-12-14 | 2017-05-10 | 梁春晓 | Nonblocking coal spreading device used for circulating fluidized bed boiler |
-
2016
- 2016-12-14 CN CN201621375471.1U patent/CN206257663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642094A (en) * | 2016-12-14 | 2017-05-10 | 梁春晓 | Nonblocking coal spreading device used for circulating fluidized bed boiler |
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