CN206580785U - A kind of three-level cyclone dust collector - Google Patents
A kind of three-level cyclone dust collector Download PDFInfo
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- CN206580785U CN206580785U CN201720299957.XU CN201720299957U CN206580785U CN 206580785 U CN206580785 U CN 206580785U CN 201720299957 U CN201720299957 U CN 201720299957U CN 206580785 U CN206580785 U CN 206580785U
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- lock hopper
- cyclone
- dust
- grey lock
- chuck
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Abstract
The utility model discloses a kind of three-level cyclone dust collector, top of gasification furnace is connected by outlet conduit with primary cyclone, the top of primary cyclone is connected with secondary cyclone, the top of secondary cyclone is connected with three-stage cyclone separator, the dust end of primary cyclone and the dust end of secondary cyclone return to gasification furnace after converging by material envelope valve, upstream device is delivered in the top of three-stage cyclone separator by coal gas of high temperature outlet, the dust end connection ash tank of three-stage cyclone separator, ash tank is connected by high temperature isolating valve with grey lock hopper, grey lock hopper is connected by back powder pipeline with gasification furnace, the utility model uses the design concept in gasification outlet of still three-level cyclone dust removal technique, as much as possible intercept of dust in raw gas is returned into gasification furnace, then raw gas is cooled again, the processing such as final dusting, reduce the difficulty of follow-up workshop section's dust processing, improve the performance of follow-up equipment.
Description
Technical field
The utility model is related to a kind of three-level cyclone dust collector, belongs to technical field of dust removal equipment, specially fluid bed
Gasification furnace craft dust removal device.
Background technology
The maximum shortcoming of fluid bed is that dust is carried over system more, such as U-gas gasification furnaces, although devise two stage cyclone
The structure type of dedusting, but the still far super design objective of dust for being carried over system so that follow-up equipment waste heat boiler and
Ceramic filter failure is continuous.
Certain enterprise 1.0M Pa U-gas gasification outlet of stills set two stage cyclone deduster, and then high-temperature dusty gas enters
Waste heat boiler is cooled, although two stage cyclone dust removing effects are good, but still have a large amount of dust to be carried over system, serious shadow
Ring the normal operation of follow-up equipment waste heat boiler and ceramic filter, the particularly influence to waste heat boiler even more serious, cause
Waste-heat boiler superheater tubulation is blocked by a large amount of dust, and heat exchange efficiency declines to a great extent, and equipment failure rate is substantially increased, so that being
System can not normally be run.
Because dust is largely taken out of system, cause follow-up cleaner load to be substantially improved, exceed well over its disposal ability,
Certain enterprise u-gas gasification furnaces are carried over the dust of system per hour according to statistics 25-30m3So that ceramic filter pressure difference mistake
Height, up to 25-30kpa, frequently occur filter core fracture, sealing orifice wash away leakage etc. equipment fault, repeatedly because of ceramic filter therefore
Barrier makes to be parking, and great economic loss is caused to enterprise.
Because dust is by a large amount of discharge systems so that dust subsequent treatment is bothered very much, it is secondary that U-gas selection dust returns stove
The PROCESS FOR TREATMENT route of gasification, achieves good dust utilizing status, but flying dust returns stove and causes ceramic filter load to enter
One step is increased, and dust-filtering amount connects a tank, about 50NM in every 2 hours or so by original3, foreshorten to 15-20 minutes 1 hour and connect a tank,
Ceramic filter equipment fault probability is increased.
The dust subsequent treatment being exhausted from system is extremely difficult thing, because dust phosphorus content is higher, is such as directly arranged
Put, necessarily cause the reduction of coal utilization efficiency, and granularity of dust is dealt with improperly below 5 microns, such as can bring very serious
Environment Pollution Event.
The content of the invention
There is provided a kind of three-level cyclone dust collector for existing technical problem for the utility model, it is therefore an objective in fluidized gas
Bed gasification furnace outlet considers three-level cyclone structure, intercepts the dust in raw gas is as much as possible and returns to gasification furnace,
Then raw gas is cooled again, the processing such as final dusting, reduction follow-up equipment handles the difficulty of flying dust, improves making for equipment
With performance, the problem of prior art is present is intended to solve.
To achieve the above object, the utility model provides following technical scheme：A kind of three-level cyclone dust collector, it includes
Primary cyclone, secondary cyclone and three-stage cyclone separator, it is characterised in that top of gasification furnace passes through outlet
Road is connected with the primary cyclone, and the top of primary cyclone is connected with secondary cyclone, two grades of whirlwind
The top of separator is connected with three-stage cyclone separator, the dust end of primary cyclone and the dust of secondary cyclone
End returns to gasification furnace after converging by material envelope valve, and the top of the three-stage cyclone separator is delivered to downstream by coal gas of high temperature outlet and set
Standby, the dust end connection ash tank of the three-stage cyclone separator, the ash tank is connected by high temperature isolating valve with grey lock hopper,
The grey lock hopper is connected by back powder pipeline with gasification furnace, and grey lock hopper back powder control valve and back powder pipeline are provided with back powder pipeline
Balance pipe and control valve are provided between boosting gas, grey lock hopper and ash tank.
Further, preferably, the ash tank is jacket structured, the ash tank chuck cooling water on ash tank chuck enters
Cooling water is introduced chuck by mouth, and the dust of docking ash can internal reservoir is cooled, cold through ash tank chuck after cooling water heat absorption
But water out is drawn.
Further, it is described preferably, setting the grey low level-sensing device of lock hopper and grey lock hopper high charge level meter in described grey lock hopper
Grey lock hopper to be jacket structured, cooling water is introduced chuck by the grey lock hopper chuck cooling water inlet valve on grey lock hopper chuck, right
The dust of lock hopper internal reservoir is cooled, and is drawn after cooling water heat absorption through grey lock hopper chuck cooling sea water outlet valve, the ash lock
Grey lock hopper impact tube line traffic control valve is provided with bucket.
Further, preferably, the bottom of ash tank is provided with level-sensing device.
Further, preferably, being provided with the grey lock hopper pressure gauge of the grey lock hopper internal pressure of measurement in the grey lock hopper.
Further, preferably, being provided with gasification furnace pressure tap on gasification furnace.
Compared with prior art, the beneficial effects of the utility model are：
The utility model uses the design concept in gasification outlet of still three-level cyclone dust removal technique, by the dust in raw gas
As much as possible intercept returns to gasification furnace, and then raw gas is cooled again, the processing such as final dusting, reduces follow-up work
The difficulty of Duan Fenchen processing, improves the performance of follow-up equipment.
Brief description of the drawings
Fig. 1 is a kind of structural representation of three-level cyclone dust collector of the present utility model；
Wherein, the primary cyclone 4 of 1. gasification furnace, 2. outlet conduit 3., the three-level whirlwind of secondary cyclone 5.
The upstream device 7 of separator 6., the balance pipe of 8. ash tank of ash tank chuck coolant outlet 9. and the level-sensing device of control valve 10.
11. the grey lock hopper punching press of the grey lock hopper chuck cooling sea water outlet valve 14. of ash tank chuck cooling water inlet 12, high temperature isolating valve 13.
The grey ash of lock hopper chuck 19. of the grey lock hopper 18. of the grey lock hopper pressure gauge 17. of the grey lock hopper high charge level meter 16. of pipeline control valve door 15.
The grey back powder pipeline 23. of lock hopper back powder control valve 22. of the grey lock hopper chuck cooling water inlet valve 21 of the low level-sensing device 20. of lock hopper is returned
The material of tube cell line boosting gas 24. seals the gasification furnace pressure tap of valve 25.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of three-level cyclone dust collector, it includes one-level
Cyclone separator 3, secondary cyclone 4 and three-stage cyclone separator 5, it is characterised in that the top of gasification furnace 1 passes through outlet
Road 2 is connected with the primary cyclone 3, and the top of primary cyclone 3 is connected with secondary cyclone 4, two grades
The top of cyclone separator 4 is connected with three-stage cyclone separator 5, the dust end of primary cyclone 3 and two grades of cyclonic separations
The dust end of device 4 returns to gasification furnace 1 after converging by material envelope valve 24, and the top of the three-stage cyclone separator 5 is by coal gas of high temperature
Upstream device 6 is delivered in outlet, and the dust end of the three-stage cyclone separator 5 connects ash tank 8, and the ash tank 8 passes through high temperature
Isolating valve 12 is connected with grey lock hopper 17, and the grey lock hopper 17 is connected by back powder pipeline 22 with gasification furnace 1, is set on back powder pipeline 22
Be equipped with grey lock hopper back powder control valve 21 and back powder pipeline boosting gas 23, be provided between grey lock hopper 17 and ash tank 8 balance pipe and
Control valve 9.
Wherein, the ash tank is jacket structured, and the ash tank chuck cooling water inlet 11 on ash tank chuck will be cooled down
Water introduces chuck, and the dust of docking ash can internal reservoir is cooled, through ash tank chuck coolant outlet 7 after cooling water heat absorption
Draw.
Set and set in the grey low level-sensing device 19 of lock hopper and grey lock hopper high charge level meter 15, described grey lock hopper in described grey lock hopper
Cooling water is introduced chuck by the grey lock hopper chuck cooling water inlet valve 20 being equipped with grey lock hopper chuck 18, grey lock hopper chuck 18,
The dust of lock hopper internal reservoir is cooled, drawn after cooling water heat absorption through grey lock hopper chuck cooling sea water outlet valve 13, it is described
Grey lock hopper impact tube line traffic control valve 14 is provided with grey lock hopper.The bottom of ash tank is provided with level-sensing device 10.The grey lock hopper
On be provided with the grey lock hopper pressure gauge 16 of the grey lock hopper internal pressure of measurement.Gasification furnace pressure tap 25 is provided with gasification furnace.
Operation principle of the present utility model and the course of work are as follows：
Process 1：The high-temperature dusty gas that gasification furnace 1 is produced is through top of gasification furnace outlet conduit 2 to one cyclonic deduster
3, separated dust returns to gasification furnace after converging with the dust that second cyclone dust extractor 4 is separated by material envelope valve 24.
Process 2：High-temperature gas is by the Base top contact of secondary cyclone 4 to three-stage cyclone separator 5, and gas revolves through three-level
Upstream device is delivered to by coal gas of high temperature outlet 6 by its Base top contact after the dedusting of wind separator 5.
Process 3：The dust separated by three-level cyclone dust collectors is stored in ash tank 8, and ash tank is chuck knot
Cooling water is introduced chuck by structure, ash tank chuck cooling water inlet 11, and the dust of the docking internal reservoir of ash can 8 is cooled, cold
But drawn after water heat absorption through ash tank chuck coolant outlet 7.
Process 4：The dust separated by three-level cyclone dust collectors is stored in ash tank 8, when the low material position of grey lock hopper
After 19 occur, grey lock hopper impact tube line traffic control valve 14 is closed, when the grey lock hopper pressure 16 of is mutually simultaneously closed off with gasification furnace pressure 25
Grey lock hopper back powder control valve 21, opens ash tank and grey lock hopper high temperature isolating valve 12, opens balance pipe control valve 9, grey lock hopper 17
Start ash, after material position occurs in grey lock hopper high charge level 15, close balance pipe control valve 9, close ash tank and grey lock hopper high temperature
Isolating valve 12, opens the grey grey lock hopper 17 of 14 pairs of lock hopper impact tube line traffic control valve and carries out punching press, when the grey lock hopper pressure 16 of is more than gas
When changing furnace pressure power 2510kpa (concrete numerical value is certain according to actual conditions), grey lock hopper back powder control valve 21 and back powder pipeline are opened
Boosting gas 23, proceeds by flying dust and returns stove.
Process 5：Grey lock hopper 17 is also jacket structured, and cooling water uses bottom in and top out pattern, and lock hopper inside dust is carried out
Cooling.
The utility model uses the design concept in gasification outlet of still three-level cyclone dust removal technique, by the dust in raw gas
As much as possible intercept returns to gasification furnace, and then raw gas is cooled again, the processing such as final dusting, reduces follow-up work
The difficulty of Duan Fenchen processing, improves the performance of follow-up equipment.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of three-level cyclone dust collector, it includes primary cyclone, secondary cyclone and three-stage cyclone separation
Device, it is characterised in that top of gasification furnace is connected by outlet conduit with the primary cyclone, primary cyclone
Top is connected with secondary cyclone, and the top of secondary cyclone is connected with three-stage cyclone separator, one cyclonic point
By expecting that envelope valve returns to gasification furnace, the three-level whirlwind point after converging from the dust end of device and the dust end of secondary cyclone
Upstream device by coal gas of high temperature outlet is delivered in top from device, the dust end connection ash tank of the three-stage cyclone separator, institute
State ash tank to be connected with grey lock hopper by high temperature isolating valve, the grey lock hopper is connected by back powder pipeline with gasification furnace, back powder pipe
It is provided with line between grey lock hopper back powder control valve and back powder pipeline boosting gas, grey lock hopper and ash tank and is provided with balance pipe and control
Valve processed.
2. a kind of three-level cyclone dust collector according to claim 1, it is characterised in that：The ash tank is chuck knot
Cooling water is introduced chuck by the ash tank chuck cooling water inlet on structure, ash tank chuck, docks the dust of ash can internal reservoir
Cooled, drawn after cooling water heat absorption through ash tank chuck coolant outlet.
3. a kind of three-level cyclone dust collector according to claim 1, it is characterised in that：Ash is set in described grey lock hopper
The low level-sensing device of lock hopper and grey lock hopper high charge level meter, described grey lock hopper is jacket structured, the grey lock hopper chuck on grey lock hopper chuck
Cooling water is introduced chuck by cooling water inlet valve, and the dust of lock hopper internal reservoir is cooled, through ash after cooling water heat absorption
Lock hopper chuck cooling sea water outlet valve is drawn, and grey lock hopper impact tube line traffic control valve is provided with the grey lock hopper.
4. a kind of three-level cyclone dust collector according to claim 1, it is characterised in that：The bottom of ash tank is provided with material
Position meter.
5. a kind of three-level cyclone dust collector according to claim 1, it is characterised in that：Survey is provided with the grey lock hopper
The grey lock hopper pressure gauge of the grey lock hopper internal pressure of amount.
6. a kind of three-level cyclone dust collector according to claim 1, it is characterised in that：Gasification furnace is provided with gasification furnace
Pressure tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299957.XU CN206580785U (en) | 2017-03-24 | 2017-03-24 | A kind of three-level cyclone dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720299957.XU CN206580785U (en) | 2017-03-24 | 2017-03-24 | A kind of three-level cyclone dust collector |
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| Publication Number | Publication Date |
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| CN206580785U true CN206580785U (en) | 2017-10-24 |
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ID=60115117
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720299957.XU Active CN206580785U (en) | 2017-03-24 | 2017-03-24 | A kind of three-level cyclone dust collector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237024A (en) * | 2017-12-28 | 2018-07-03 | 陕西延长石油（集团）有限责任公司 | A kind of two stage cyclone separator |
| CN110056866A (en) * | 2018-04-16 | 2019-07-26 | 新能能源有限公司 | Fluidized bed second level whirlwind feeding back device and whirlwind feed back control method |
| CN110064342A (en) * | 2018-04-10 | 2019-07-30 | 新能能源有限公司 | Right angle butterfly valve |
| CN112957864A (en) * | 2021-02-04 | 2021-06-15 | 华能（天津）煤气化发电有限公司 | Flying ash filtering system for preventing flying ash from entering torch after filter stick breakage |
| CN114479948A (en) * | 2022-01-24 | 2022-05-13 | 上海泽镨工程科技有限公司 | Medium-temperature powder returning system of jet fluidized bed gasification furnace for coal synthesis gas |
-
2017
- 2017-03-24 CN CN201720299957.XU patent/CN206580785U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237024A (en) * | 2017-12-28 | 2018-07-03 | 陕西延长石油（集团）有限责任公司 | A kind of two stage cyclone separator |
| CN110064342A (en) * | 2018-04-10 | 2019-07-30 | 新能能源有限公司 | Right angle butterfly valve |
| CN110064342B (en) * | 2018-04-10 | 2024-02-09 | 新能能源有限公司 | Right-angle butterfly valve |
| CN110056866A (en) * | 2018-04-16 | 2019-07-26 | 新能能源有限公司 | Fluidized bed second level whirlwind feeding back device and whirlwind feed back control method |
| CN110056866B (en) * | 2018-04-16 | 2024-02-09 | 新能能源有限公司 | Fluidized bed secondary cyclone return device and cyclone return control method |
| CN112957864A (en) * | 2021-02-04 | 2021-06-15 | 华能（天津）煤气化发电有限公司 | Flying ash filtering system for preventing flying ash from entering torch after filter stick breakage |
| CN112957864B (en) * | 2021-02-04 | 2022-03-25 | 华能（天津）煤气化发电有限公司 | Flying ash filtering system for preventing flying ash from entering torch after filter stick breakage |
| CN114479948A (en) * | 2022-01-24 | 2022-05-13 | 上海泽镨工程科技有限公司 | Medium-temperature powder returning system of jet fluidized bed gasification furnace for coal synthesis gas |
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