CN209042409U - A kind of recycle fluidized-bed combustion boiler uniform distribution system - Google Patents
A kind of recycle fluidized-bed combustion boiler uniform distribution system Download PDFInfo
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- CN209042409U CN209042409U CN201821694270.7U CN201821694270U CN209042409U CN 209042409 U CN209042409 U CN 209042409U CN 201821694270 U CN201821694270 U CN 201821694270U CN 209042409 U CN209042409 U CN 209042409U
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Abstract
The utility model relates to a kind of recycle fluidized-bed combustion boiler uniform distribution systems, it is arranged between feeder unit and circulating fluidized bed boiler, air inlet unit, cooling wind source unit, distributing device and cooling air outlet air exhaust units including being sequentially connected in series setting by pipeline；By installing a set of distributing system additional near rubbish fluidized bed boiler feed systems, from exhausting near level-one screw(-type) feeder, the distributing device device being mounted on the downside of feed inlet is entered after blower pressurizes, can dispel and fall within the rubbish above distributing device.Rubbish drops down on distributing device after entering boiler by feed inlet, and rubbish scatters under gravity and wind-force effect, prevents rubbish from falling into accumulation and detonation in furnace, can improve rubbish in furnace and be distributed, improve combustion efficiency.In addition in view of the case where air inlet may block or overhaul of the equipments, fresh air all the way is supplemented from feed system external demand, it is separately spare from cooling wind progress of fluidized bed secondary air inlet one transportation work style of introducing to this distributing device, to improve the safety of system.
Description
Technical field
The utility model relates to field of environment engineering technology more particularly to a kind of recycle fluidized-bed combustion boiler uniform distributions
System.
Background technique
Fluidized bed garbage feeding system main flow: rubbish pretreatment → rubbish feed bin → level-one screw feeder → second level spiral shell
Revolve feed → boiler feed mouth.Micro-vacuum state is maintained in fluid bed furnace under normal circumstances, prevents odor gas excessive, at present should
Feed system has the following problems:
Rubbish, because of component of refuse complexity, is crushed reasons, the rubbish such as uneven and exists when entering the feed inlet of fluidized-bed combustion boiler
Feed inlet is easy conglomeration, accumulation.Rubbish after one side conglomeration enters in furnace, it is possible to create detonation, negative pressure may become in former furnace
At positive pressure, the flue gas of detonation can overflow into workshop outside feed system, influence human health and pollution environment；On the other hand
Because of burn incompletely caused by rubbish detonation, a large amount of carbon monoxide is generated, the discharge indexs such as carbon monoxide are exceeded.
There are stenches around the garbage feeding region of fluidized-bed combustion boiler, since feed system is poorly sealed, feed inlet blocking
Or other reasons, feed zone may also will form positive pressure, rubbish stench can be returned in feeding port and workshop, pollute ring
Border damages the health and plant area's image of staff.
Based on this, aiming at the shortcomings in the prior art, a kind of rubbish that can improve air circulation, guarantee efficiency of combustion is needed
Rubbish circulating fluidized bed boiler uniform distribution system is devised.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and air circulation can be improved, protect by obtaining one kind
Demonstrate,prove the recycle fluidized-bed combustion boiler uniform distribution system of efficiency of combustion.
The utility model is achieved through the following technical solutions:
A kind of recycle fluidized-bed combustion boiler uniform distribution system, setting feeder unit and circulating fluidized bed boiler it
Between, air inlet unit, cooling wind source unit, distributing device and cooling air outlet air draft list including being sequentially connected in series setting by pipeline
Member；Wherein,
The feeder unit includes along the sequentially connected level-one screw(-type) feeder of feedstock direction and deuterostrophies batcher, institute
The air inlet of level-one screw(-type) feeder connection air inlet unit is stated, the air inlet of the air inlet unit is described at least provided with one
The discharge port of deuterostrophies batcher is connected to the feed inlet of circulating fluidized bed boiler, connects above the deuterostrophies batcher
Connect the air outlet of cooling air outlet air exhaust units, the air outlets of the cooling air outlet air exhaust units is at least provided with one, institute
It states and is provided with exhaust outlet on distributing device, the exhaust outlet stretches in circulating fluidized bed boiler and is arranged in circulating fluidized bed boiler
Feed inlet below.
The utility model further improvement lies in that, using blower as cooling wind regime in the cooling wind source unit.
The utility model further improvement lies in that, on the pipeline of level-one screw(-type) feeder connection air inlet unit air inlet
It is additionally provided with supplement fresh air pipeline.
The utility model further improvement lies in that, be additionally provided at least between the cooling wind source unit and distributing device unit
One safety mends wind unit, and the safety mends the secondary air duct of the air inlet connection circulating fluidized bed boiler of wind unit.
The utility model further improvement lies in that, the air draft direction of the exhaust outlet is perpendicular to the circulating fluidized bed boiler
Feedstock direction.
The utility model, which further improves, to be, the connection in the system is pipeline connection, and the system is using electricity
Gas control system is simultaneously provided with detection instrument and motor-driven valve on corresponding pipeline.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is located at the distributing device below feed inlet by setting, after the rubbish of feed inlet agglomeration enters in furnace
It hangs above distributing device, falls into fluidized bed with after breaing up under the wind pressure of distributing device purging under the effect of gravity, prevent rubbish from falling into
Accumulation and detonation in furnace can improve rubbish in furnace and be distributed, increase burning area, improve combustion efficiency, and to purged charging
Rubbish forms certain desiccation, is conducive to full combustion；
2, introducing air hose all the way is arranged in the utility model on level-one screw(-type) feeder, remains certain in feed zone and bears
Pressure condition, refuse odor are also extracted, and refuse odor is avoided to be returned in workshop, keep health in workshop；
3, the utility model recycles the air after distributing device has purged, and is connected to deuterostrophies batcher, second level
Rubbish is under the purging of this residual compression air on screw(-type) feeder, to detonation etc. cause in furnace positive pressure it is excessive have centainly suppress into
Material mouth outlet air effect, additionally it is possible to the booster action for improving garbage feeding speed is played, also can avoid the blocking of feed inlet, meanwhile,
The air of recycling can be formed with air cushion in the transfer passage of deuterostrophies batcher, for buffering caused by detonation
Damage of the Blasting shock wave to pipeline reduces blast disturbance；
4, parallel with feed inlet direction by arranging the scavenging conduit of distributing device in the utility model, exhaust outlet air port is vertical
Maximum dispersion rubbish effect can be played with the perpendicular shape in garbage feeding direction in blowpipe mouth direction.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the system structure diagram of one embodiment in the utility model.
Appended drawing reference is as follows:
1, distributing device, 2, cooling wind source unit, 3, air inlet unit, 4, feeder unit, 4-1, level-one screw(-type) feeder, 4-2,
Deuterostrophies batcher, 5, circulating fluidized bed boiler, 6, safety benefit wind unit, 7, secondary air duct, 8, supplement fresh air pipeline, 9,
Cooling air outlet air exhaust units.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model provides a kind of recycle fluidized-bed combustion boiler uniform distribution system, setting is being given
Between material unit 4 and circulating fluidized bed boiler 5, air inlet unit 3, cooling wind source unit including being sequentially connected in series setting by pipeline
2, distributing device 1 and cooling air outlet air exhaust units 9；Wherein,
The feeder unit 4 includes being fed along the sequentially connected level-one screw(-type) feeder 4-1 of feedstock direction and deuterostrophies
Machine 4-2, the air inlet of the level-one screw(-type) feeder 4-1 connection air inlet unit 3, the air inlet of the air inlet unit 3 are at least set
It is equipped with one, the discharge port of the deuterostrophies batcher 4-2 is connected to the feed inlet of circulating fluidized bed boiler 5, the second level
The air outlet of the top connection cooling air outlet air exhaust units 9 of screw(-type) feeder 4-2, the cooling air outlet air exhaust units 9
Air outlet is provided with exhaust outlet at least provided with one on the distributing device 1, the exhaust outlet stretches to circulating fluidized bed boiler
In 5 and it is arranged in below the feed inlet of circulating fluidized bed boiler 5.
In the above-mentioned technical solutions, under the detonation of conglomeration rubbish or the formation barotropic condition blocked by feed inlet, from one
Exhausting near grade screw(-type) feeder 4-1, maintains certain negative pressure state in feed zone, and refuse odor herein is also extracted,
It avoids refuse odor from being returned in workshop, keeps health in workshop.The air after distributing device 1 has purged is recycled, and even
Deuterostrophies batcher 4-2 is passed to, rubbish is under the purging of this residual compression air on deuterostrophies batcher 4-2, to detonation
Positive pressure is excessive certain compacting feed inlet outlet air effect etc. causing in furnace, additionally it is possible to play and improve the auxiliary of garbage feeding speed and make
With, it also can avoid the blocking of feed inlet, meanwhile, the air of recycling can be in the transfer passage of deuterostrophies batcher 4-2
It is formed with air cushion, for buffering damage of the Blasting shock wave caused by detonation to pipeline, reduces blast disturbance.
When it is implemented, using blower as cooling wind regime in the cooling wind source unit 2.
When it is implemented, being additionally provided with benefit on the pipeline of 3 air inlet of level-one screw(-type) feeder 4-1 connection air inlet unit
Fill fresh air pipeline 8.
When it is implemented, being additionally provided at least one between the cooling wind source unit 2 and distributing device Unit 1 mends safely wind
Unit 6, the safety mend the secondary air duct 7 of the air inlet connection circulating fluidized bed boiler 5 of wind unit 6.
When it is implemented, feedstock direction of the air draft direction of the exhaust outlet perpendicular to the circulating fluidized bed boiler 5, energy
Enough play maximum dispersion rubbish effect.
When it is implemented, the connection in the system is pipeline connection, the system is using electric control system and right
It answers and is provided with detection instrument and motor-driven valve on pipeline, more preferably, can be controlled using PLC control system.
In the above-mentioned technical solutions, this system is installed additional near feed inlet, from exhausting near level-one screw(-type) feeder 4-1,
It allows entire feed zone to form negative pressure, the foul smell of feed inlet is prevented to be discharged into workshop.After blower pressurizes enter be mounted on into
1 device of distributing device on the downside of material mouth, can dispel and fall within the rubbish above distributing device 1.Rubbish enters boiler by feed inlet
After drop down on distributing device 1, be crushed conglomeration rubbish under the effect of gravity, prevent rubbish from falling into accumulation and detonation in furnace, furnace can be improved
Interior rubbish distribution, improves combustion efficiency.In addition in view of the case where air inlet may block or overhaul of the equipments, outside feed system
Fresh air all the way need to be supplemented, separately from the secondary air inlet of circulating fluidized bed boiler 5 introduce a transportation work style to the cooling wind of this distributing device 1 into
Row is spare, to improve the safety of system.
As one preferred embodiment of the utility model, as shown in Fig. 2, whole device needs to maintain the negative of feed system
Pressure condition, it is desirable that pressure is stablized, it is preferred to use roots blower, roots blower belong to positive displacement compression fan, can be by adjusting
Revolving speed changes flow, and wind pressure do not limited by rotation speed of fan.Therefore the present apparatus selects roots blower, passes through frequency converter or other modes
Revolving speed is adjusted to control flow etc., at the same by control system configured with screw(-type) feeder inlet duct setting pressure detecting,
Pressure detecting, 1 outlet conduit of distributing device setting pressure detecting, 1 inlet duct of distributing device setting temperature is arranged in 1 inlet duct of distributing device
Degree detection, 1 outlet conduit of distributing device setting temperature detection, screw(-type) feeder inlet duct setting stop valve, supplement fresh air pipeline 8
Entrance is arranged stop valve, roots blower outlet conduit setting stop valve, 1 inlet duct of distributing device and stop valve, secondary air channel is arranged
Stop valve is arranged in road 7, stop valve is arranged in 1 outlet conduit of distributing device.
On the basis of the above embodiments, control principle are as follows:
1, the air inlet control of distributing device 1: normal spatiotemporal gas enters distributing device 1 after roots blower pressurizes and completes purging,
It purges pipeline and pressure detecting is set, after the exhaust outlet of distributing device 1 has stopping state, pressure can be more than preset value, thus sentence pipe
Break stopping state in road, and the stop valve of 1 rear side of distributing device is opened after exhaust outlet blocking, air is allowed to enter deuterostrophies batcher 4-
2。
2, roots blower protection is chain: 1 exhaust outlet inlet pressure of distributing device and roots blower are chain, and pressure is in setting range
Interior normal operation, it is then out of service beyond setting value；
3,1 air quantity of distributing device is adjusted: 1 air quantity of distributing device can be controlled by roots blower and scavenging pipeline regulating valve.
4, secondary wind path opens condition: when roots blower is out of service, 7 stop valve of secondary air duct is automatically opened, and is mended
The Secondary Air for filling fluidized bed enters air hose.When screw(-type) feeder inlet duct blocks, automatically turns on supplement 8 entrance of fresh air pipeline and cut
Disconnected valve supplements fresh air.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of recycle fluidized-bed combustion boiler uniform distribution system is arranged in feeder unit (4) and circulating fluidized bed boiler (5)
Between, it is characterised in that: air inlet unit (3), cooling wind source unit (2), distributing device including being sequentially connected in series setting by pipeline
(1) and cooling air outlet air exhaust units (9)；Wherein,
The feeder unit (4) includes being fed along the sequentially connected level-one screw(-type) feeder (4-1) of feedstock direction and deuterostrophies
Machine (4-2), the air inlet of level-one screw(-type) feeder (4-1) connection air inlet unit (3), the air inlet of the air inlet unit (3)
For mouth at least provided with one, the discharge port of the deuterostrophies batcher (4-2) is connected to the charging of circulating fluidized bed boiler (5)
Mouthful, the air outlet of top connection cooling air outlet air exhaust units (9) of the deuterostrophies batcher (4-2), the cooling wind
The air outlet of air exhaust units (9) is exported at least provided with one, is provided with exhaust outlet, the exhaust outlet on the distributing device (1)
It stretches in circulating fluidized bed boiler (5) and is arranged below the feed inlet of circulating fluidized bed boiler (5).
2. a kind of recycle fluidized-bed combustion boiler (5) uniform distribution system according to claim 1, it is characterised in that: institute
It states in cooling wind source unit (2) using blower as cooling wind regime.
3. a kind of recycle fluidized-bed combustion boiler (5) uniform distribution system according to claim 1, it is characterised in that: institute
It states and is additionally provided with supplement fresh air pipeline (8) on the pipeline of level-one screw(-type) feeder (4-1) connection air inlet unit (3) air inlet.
4. a kind of recycle fluidized-bed combustion boiler uniform distribution system according to claim 1, it is characterised in that: described cold
But it is additionally provided at least one between wind regime unit (2) and distributing device (1) and mends wind unit (6) safely, the safety mends wind unit
(6) secondary air duct (7) of air inlet connection circulating fluidized bed boiler (5).
5. a kind of recycle fluidized-bed combustion boiler uniform distribution system according to claim 1, it is characterised in that: the row
Feedstock direction of the air draft direction in air port perpendicular to the circulating fluidized bed boiler (5).
6. a kind of recycle fluidized-bed combustion boiler uniform distribution system according to any one of claims 1 to 5, feature exist
In: the connection in the system is pipeline connection, and the system is provided with inspection using electric control system and on corresponding pipeline
Survey instrument and motor-driven valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694270.7U CN209042409U (en) | 2018-10-18 | 2018-10-18 | A kind of recycle fluidized-bed combustion boiler uniform distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821694270.7U CN209042409U (en) | 2018-10-18 | 2018-10-18 | A kind of recycle fluidized-bed combustion boiler uniform distribution system |
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| Publication Number | Publication Date |
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| CN209042409U true CN209042409U (en) | 2019-06-28 |
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| CN201821694270.7U Active CN209042409U (en) | 2018-10-18 | 2018-10-18 | A kind of recycle fluidized-bed combustion boiler uniform distribution system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099440A (en) * | 2018-10-18 | 2018-12-28 | 武汉致衡环境安全工程技术有限公司 | A kind of recycle fluidized-bed combustion boiler uniform distribution system |
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2018
- 2018-10-18 CN CN201821694270.7U patent/CN209042409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099440A (en) * | 2018-10-18 | 2018-12-28 | 武汉致衡环境安全工程技术有限公司 | A kind of recycle fluidized-bed combustion boiler uniform distribution system |
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