CN206706035U - A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device - Google Patents
A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device Download PDFInfo
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- CN206706035U CN206706035U CN201720458644.4U CN201720458644U CN206706035U CN 206706035 U CN206706035 U CN 206706035U CN 201720458644 U CN201720458644 U CN 201720458644U CN 206706035 U CN206706035 U CN 206706035U
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Abstract
The utility model discloses a kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device, it includes high pressure slag ladle, high pressure lock hopper, middle pressure lock hopper, low pressure lock hopper, high pressure balance pipe is communicated between high pressure lock hopper and middle pressure lock hopper, high pressure balanced valve is equiped with high pressure balance pipe, mesolow balance pipe is communicated between middle pressure lock hopper and low pressure lock hopper, mesolow balanced valve is equiped with mesolow balance pipe.The advantages of the utility model：Using pressure balance valve between lock hopper, the pressure between high-low pressure lock hopper is carried out, step-decreasing voltage, lock hopper gas is reduced and rushes fluence and discharge capacity；Top is dry cinder discharging, and achievable gasification furnace moving bed deslagging is complementary to one another with gas control deslagging, ensures fluidized-bed gasification furnace stable operation；Bottom is wet-process deslagging, can avoid pollution problem caused by dry cinder discharging, reduces the requirement to slag-discharging valve, reduces failsafe valve rate, while saves the gas usage of deslagging lock hopper pressurising, reduces discharge capacity.
Description
Technical field：
Fluidized-bed gasification furnace deslagging technique field is the utility model is related to, relates in particular to a kind of mesohigh fluid bed gas
Change stove wet-dry change combination slag-draining device.
Background technology：
In the state of gasification furnace stable operation, bed drain purge hourly is essentially identical, the control deslagging how to stablize
Speed, the operation of gasification furnace will be directly affected；Common Slagoff method has two kinds of wet-process deslagging and dry cinder discharging.Wherein, wet method
The shortcomings that deslagging maximum is that deslagging must be carried out by the way of gas control deslagging, i.e., by controlling gasification furnace slag passage endless tube
Tolerance, to control slag speed, its operation is extremely difficult, and it necessarily wears the central tube in slag passage, makes central tube
Wear and leakage；Central tube is the main thoroughfare that gasification furnace needs gasifying agent, and more than 80% oxygen will be entered by central tube to gasify
Stove, its tube wall will necessarily cause gasification furnace slag channel interior peroxide, overtemperature, slagging, system operatio once there is abrasion side leakage
Stability it is poor；And existing dry cinder discharging technique, using the pressure inside lock hopper is all discharged, then deslagging, after the completion of lock
Punching press to gasifier operation pressure, the pattern of lock hopper splicing, the which that struggle against not only pollutes environment, wastes the energy, and due to letting out
Valve both sides pressure difference is high during pressure, causes failsafe valve continuous.
Utility model content：
The purpose of this utility model is to provide a kind of system operatio stability good mesohigh fluidized-bed gasification furnace dry and wet
Method combination slag-draining device.
The utility model is implemented by following technical scheme：A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination deslagging dress
Put, it includes high pressure slag ladle, high pressure lock hopper, middle pressure lock hopper, low pressure lock hopper, and fluidisation is provided with the bottom of the high pressure slag ladle
Gas entrance, two tremie pipes are provided with the bottom of the high pressure slag ladle, on the discharging opening of the every tremie pipe successively
The high pressure lock hopper, medium pressure lock hopper and the low pressure lock hopper are connected with, storage is equiped with the discharging opening of the tremie pipe
Slag ladle residual cake valve；Water injection pipe is provided with the top of the high pressure lock hopper, water injection valve is equiped with the water injection pipe, in the water filling
Impact tube is communicated with the water injection pipe between valve and the high pressure lock hopper, ram valve is equiped with the impact tube；
It is equiped with level-sensing device and height in high pressure high charge level meter, high pressure in the side wall of the high pressure lock hopper successively from top to bottom and forces down material position
Meter, is equiped with high pressure lock hopper residual cake valve on the discharging opening of the high pressure lock hopper；In being equiped with the bottom of medium pressure lock hopper
Level-sensing device is forced down, lock hopper residual cake valve is pressed in being equiped with the discharging opening of medium pressure lock hopper；At the top of the low pressure lock hopper
Low pressure lock hopper relief valve and low pressure lock hopper exhaust-valve are equiped with, the low level-sensing device of low pressure is equiped with the bottom of the low pressure lock hopper,
Low pressure lock hopper residual cake valve is equiped with the discharging opening of the low pressure lock hopper；In the high pressure lock hopper, medium pressure lock hopper, described
The top of low pressure lock hopper is equiped with pressure gauge, and high pressure balance is communicated between the high pressure lock hopper and medium pressure lock hopper
Pipe, is equiped with high pressure balanced valve on the high pressure balance pipe, connects between medium pressure lock hopper and the low pressure lock hopper
Mesolow balance pipe is connected with, mesolow balanced valve is equiped with the mesolow balance pipe.
Further, it also includes deslagging pond, and the discharging opening of the low pressure lock hopper passes through pipeline and the bottom in the deslagging pond
Portion connects.
Further, it also includes high-pressure circulation pump, and the water inlet of the high-pressure circulation pump passes through pipeline and the deslagging
Pond top is connected, and the delivery port of the high-pressure circulation pump is connected by pipeline with the water injection pipe.
Further, it is communicated between the delivery port of the high-pressure circulation pump and deslagging pond top by high-pressure pump
Road, bypass control valve is equiped with high-pressure pump bypass.
Further, it is provided with punching in the bottom of the high pressure lock hopper and/or medium pressure lock hopper and/or the low pressure lock hopper
Pipe is washed, flushing valve is equiped with the flush pipe.
Further, the delivery port of the high-pressure circulation pump is connected by pipeline with the flush pipe.
The advantages of the utility model：Using pressure balance valve between lock hopper, the pressure between high-low pressure lock hopper, ladder drop are carried out
Pressure, reduce lock hopper gas and rush fluence and discharge capacity；Top is dry cinder discharging, and gasification furnace moving bed deslagging and gas control deslagging can be achieved
Be complementary to one another, ensure fluidized-bed gasification furnace stable operation；Bottom is wet-process deslagging, and pollution caused by dry cinder discharging can be avoided to ask
Topic, the requirement to slag-discharging valve is reduced, reduce failsafe valve rate, while save the gas usage of deslagging lock hopper pressurising, the row of reduction
High-volume.
Brief description of the drawings：
Fig. 1 is overall structure diagram of the present utility model.
High pressure slag ladle 1, fluidized gas entrance 1.1, tremie pipe 1.2, slag ladle residual cake valve 1.3, high pressure lock hopper 2, water injection pipe
2.1st, level-sensing device 2.4, height force down level-sensing device 2.5, high pressure lock hopper residual cake valve in water injection valve 2.2, high pressure high charge level meter 2.3, high pressure
2.6th, middle pressure lock hopper 3, in force down level-sensing device 3.1, middle pressure lock hopper residual cake valve 3.2, low pressure lock hopper 4, low pressure lock hopper relief valve 4.1,
The low level-sensing device 4.2 of low pressure, low pressure lock hopper residual cake valve 4.3, low pressure lock hopper exhaust-valve 4.4, pressure gauge 5, high pressure balance pipe 6, height
Middle pressure balanced valve 7, mesolow balance pipe 8, mesolow balanced valve 9, deslagging pond 10, high-pressure circulation pump 11, high-pressure pump bypass 12, side
Road control valve 13, flush pipe 14, flushing valve 15, impact tube 16, ram valve 17.
Embodiment：
As shown in figure 1, a kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device, it include high pressure slag ladle 1,
High pressure lock hopper 2, middle pressure lock hopper 3, low pressure lock hopper 4, deslagging pond 10, high-pressure circulation pump 11, high pressure slag ladle 1 are one and pressed from both sides with water
The high pressure storage device of cooling is covered, the clinker that can be discharged to gasification furnace is stored and cooled；Set in the bottom of high pressure slag ladle 1
There is fluidized gas entrance 1.1, cryogenic gas (such as CO is passed through into high pressure slag ladle 1 by fluidized gas entrance 1.12), can effectively it prevent
Only its internal situation for occurring building bridge, deslagging is not smooth, while the clinker fast cooling in its high pressure slag ladle 1 can be made；
Two tremie pipes 1.2 are provided with the bottom of high pressure slag ladle 1, water leg progress can be added outside tremie pipe 1.2
Cooling, high pressure lock hopper 2, middle pressure lock hopper 3 and low pressure lock hopper 4 are connected with turn on the discharging opening of every tremie pipe 1.2, under
Slag ladle residual cake valve 1.3 is equiped with the discharging opening of expects pipe 1.2；Water injection pipe 2.1 is provided with the top of high pressure lock hopper 2, in water injection pipe
Water injection valve 2.2 is equiped with 2.1, impact tube 16 is communicated with the water injection pipe 2.1 between water injection valve 2.2 and high pressure lock hopper 2,
Ram valve 17 is equiped with impact tube 16；It is equiped with high pressure high charge level meter successively from top to bottom in the side wall of high pressure lock hopper 2
2.3rd, level-sensing device 2.4 and height force down level-sensing device 2.5 in high pressure, and high pressure lock hopper deslagging is equiped with the discharging opening of high pressure lock hopper 2
Valve 2.6；
Level-sensing device 3.1 is forced down in being equiped with the bottom of middle pressure lock hopper 3, in being equiped with the discharging opening of middle pressure lock hopper 3
Press lock hopper residual cake valve 3.2；Low pressure lock hopper relief valve 4.1 and low pressure lock hopper exhaust-valve 4.4 are equiped with the top of low pressure lock hopper 4,
The low level-sensing device 4.2 of low pressure is equiped with the bottom of low pressure lock hopper 4, low pressure lock hopper row is equiped with the discharging opening of low pressure lock hopper 4
Slag valve 4.3；The discharging opening of low pressure lock hopper 4 is connected by pipeline with the bottom in deslagging pond 10；
Pressure gauge 5 is equiped with the top of high pressure lock hopper 2, middle pressure lock hopper 3, low pressure lock hopper 4, can be examined by pressure gauge 5
Survey the internal pressure of corresponding lock hopper；High pressure balance pipe 6 is communicated between high pressure lock hopper 2 and middle pressure lock hopper 3, is flattened in senior middle school
High pressure balanced valve 7 is equiped with weighing apparatus pipe 6, mesolow balance pipe 8 is communicated between middle pressure lock hopper 3 and low pressure lock hopper 4, in
Mesolow balanced valve 9 is equiped with low-pressure balance pipe 8；
The water inlet of high-pressure circulation pump 11 is connected by pipeline with the top of deslagging pond 10, and the delivery port of high-pressure circulation pump 11 leads to
Pipeline is crossed to connect with water injection pipe 2.1；It is communicated between the delivery port of high-pressure circulation pump 11 and the top of deslagging pond 10 by high-pressure pump
Road 12, bypass control valve 13 is equiped with high-pressure pump bypass 12；
Flush pipe 14 is provided with high pressure lock hopper 2 and the bottom of middle pressure lock hopper 3 and low pressure lock hopper 4, is installed in flush pipe 14
There is flushing valve 15；The delivery port of high-pressure circulation pump 11 is connected by pipeline with flush pipe 14.
The course of work of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device described in the utility model is as follows：
1st, high pressure slag ladle splicing
Slag ladle residual cake valve 1.3 is closed, the slagging channel of fluidized gasification furnace bottom is pushed up by pipeline and high pressure slag ladle 1
The clinker that need to be discharged is discharged into high pressure slag ladle 1 by the material receiving port connection in portion, gasification furnace；At the same time, fluidized gas entrance is passed through
1.1 to being passed through cryogenic gas inside high pressure slag ladle 1, can prevent from building bridge while cooled slag；
2nd, high pressure lock hopper splicing
Close high pressure lock hopper residual cake valve 2.6, open water injection valve 2.2, pass through the water filling into high pressure lock hopper 2 of water injection pipe 2.1；When
When liquid level in high pressure lock hopper 2 reaches level-sensing device 2.4 in high pressure, close water injection valve 2.2, open ram valve 17, pass through impact tube
16 are filled with gases at high pressure to high pressure lock hopper 2 carries out punching press；The internal pressure of high pressure lock hopper 2 and gasification furnace are observed by pressure gauge 5
When pressure is identical, ram valve 17 being closed, opening slag ladle residual cake valve 1.3, the clinker in high pressure slag ladle 1 enters through tremie pipe 1.2
Corresponding to entering in high pressure lock hopper 2；When the clinker in high pressure lock hopper 2 reaches high pressure high charge level meter 2.3, slag ladle residual cake valve is closed
1.3, high pressure lock hopper splicing process terminates；
3rd, middle pressure lock hopper splicing
Lock hopper residual cake valve 3.2 is pressed in closing, opens high pressure balanced valve 7, high pressure lock hopper 2 and middle pressure lock hopper 3 pass through senior middle school
Pressure balance pipe 6 is pressed；When observing that the internal pressure of high pressure lock hopper 2 and middle pressure lock hopper 3 is identical by pressure gauge 5, high pressure is opened
Lock hopper residual cake valve 2.6, the clinker in high pressure lock hopper 2 are fallen into inside middle pressure lock hopper 3, when the clinker in high pressure lock hopper 2 reaches high pressure
During low level-sensing device 2.5, high pressure lock hopper residual cake valve 2.6 and high pressure balanced valve 7 are closed, the splicing process of middle pressure lock hopper 3 terminates；
4th, low pressure lock hopper splicing
Low pressure lock hopper residual cake valve 4.3 and low pressure lock hopper exhaust-valve 4.4 are closed, opens mesolow balanced valve 9, middle pressure lock hopper 3
And low pressure lock hopper 4 is pressed by mesolow balance pipe 8；The inside of pressure lock hopper 3 and low pressure lock hopper 4 in being observed by pressure gauge 5
When pressure is identical, lock hopper residual cake valve 3.2 is pressed in opening, the middle clinker pressed in lock hopper 3 is fallen into inside low pressure lock hopper 4, central pressure lock
When clinker in bucket 3 forces down level-sensing device 3.1 in reaching, lock hopper residual cake valve 3.2 and mesolow balanced valve 9, low pressure lock are pressed in closing
The splicing process of bucket 4 terminates；
5th, low pressure lock hopper discharging
First, the pressure release of 4.1 low pressure lock hopper of low pressure lock hopper relief valve 4 is opened, is observed by pressure gauge 5 in low pressure lock hopper 4
During portion's pressures near atmospheric power, low pressure lock hopper relief valve 4.1 is closed；The port of export of low pressure lock hopper relief valve 4.1 passes through pipeline
Extend to position deeper below the liquid level in deslagging pond 10, on the one hand, reduce the big of the internal water of deslagging pond 10 caused by pressure release
Amount boiling is splashed, and on the other hand, also the bottom of pond clinker of deslagging pond 10 can be disturbed, and clinker is moved to the low spot of deslagging pond 10；
Then, low pressure lock hopper residual cake valve 4.3 and low pressure lock hopper exhaust-valve 4.4 are opened, the discharge gate of low pressure lock hopper 4 passes through pipe
Road extends to the bottom in deslagging pond 10, and slag is emitted into the low spot in deslagging pond 10, reduces because caused by deslagging inside deslagging pond 10
A large amount of boilings of water are splashed；When the low level-sensing device 4.2 of the clinker arrival low pressure in low pressure lock hopper 4, low pressure lock hopper residual cake valve is closed
4.3 and low pressure lock hopper exhaust-valve 4.4, discharging terminates；
For low pressure lock hopper 4 in its discharging, the inside of low pressure lock hopper 4 can form vacuum because deslagging speed is too fast, influence deslagging,
Therefore according to circumstances the flushing valve 15 of the bottom of low pressure lock hopper 4 need to be opened, prevents its internal negative pressure that produces from influenceing deslagging；
Clinker in high pressure slag ladle 1 replaces discharge by two tremie pipes 1.2, in above process, when senior middle school's low pressure
When lock hopper bottom blocks, water under high pressure can be passed through to corresponding lock hopper by corresponding flush pipe 14 and be dredged, aid in blanking；It is high
Press circulating pump 11 that the inside supernatant of deslagging pond 10 can be extracted out to the flushing water as senior middle school's low pressure lock hopper, recycle it；It is high
The supernatant that pressure circulating pump 11 pumps out also can be bypassed 12 and be back to inside deslagging pond 10 by high-pressure pump to be impacted to clinker, is added
The flowing of fast bottom slag.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (6)
1. a kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device, it is characterised in that it includes high pressure slag ladle, height
Lock hopper, middle pressure lock hopper, low pressure lock hopper are pressed, fluidized gas entrance is provided with the bottom of the high pressure slag ladle, slag is stored up in the high pressure
The bottom of tank is provided with two tremie pipes, is connected with the high pressure lock hopper, institute in turn on the discharging opening of the every tremie pipe
Middle pressure lock hopper and the low pressure lock hopper are stated, slag ladle residual cake valve is equiped with the discharging opening of the tremie pipe；In the high pressure
Water injection pipe is provided with the top of lock hopper, water injection valve is equiped with the water injection pipe, between the water injection valve and the high pressure lock hopper
The water injection pipe on be communicated with impact tube, be equiped with ram valve on the impact tube；In the side wall of the high pressure lock hopper
It is equiped with level-sensing device and height in high pressure high charge level meter, high pressure successively from top to bottom and forces down level-sensing device, in goes out for the high pressure lock hopper
High pressure lock hopper residual cake valve is equiped with material mouth；Level-sensing device is forced down in being equiped with the bottom of medium pressure lock hopper, in medium pressure
Middle pressure lock hopper residual cake valve is equiped with the discharging opening of lock hopper；Be equiped with the top of the low pressure lock hopper low pressure lock hopper relief valve and
Low pressure lock hopper exhaust-valve, the low level-sensing device of low pressure is equiped with the bottom of the low pressure lock hopper, in the discharging opening of the low pressure lock hopper
On be equiped with low pressure lock hopper residual cake valve；It is equiped with the top of the high pressure lock hopper, medium pressure lock hopper, the low pressure lock hopper
Pressure gauge, high pressure balance pipe is communicated between the high pressure lock hopper and medium pressure lock hopper, in the high pressure balance pipe
On be equiped with high pressure balanced valve, mesolow balance pipe is communicated between medium pressure lock hopper and the low pressure lock hopper, in institute
State and mesolow balanced valve is equiped with mesolow balance pipe.
A kind of 2. mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device according to claim 1, it is characterised in that
It also includes deslagging pond, and the discharging opening of the low pressure lock hopper is connected by pipeline with the bottom in the deslagging pond.
A kind of 3. mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device according to claim 2, it is characterised in that
It also includes high-pressure circulation pump, and the water inlet of the high-pressure circulation pump is connected by pipeline with deslagging pond top, the height
The delivery port of pressure circulating pump is connected by pipeline with the water injection pipe.
A kind of 4. mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device according to claim 3, it is characterised in that
High-pressure pump bypass is communicated between the delivery port of the high-pressure circulation pump and deslagging pond top, is bypassed in the high-pressure pump
On be equiped with bypass control valve.
5. a kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device according to any one of claims 1 to 4, it is special
Sign is, flush pipe is provided with the bottom of the high pressure lock hopper and/or medium pressure lock hopper and/or the low pressure lock hopper, in institute
State and flushing valve is equiped with flush pipe.
A kind of 6. mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device according to claim 5, it is characterised in that
The delivery port of the high-pressure circulation pump is connected by pipeline with the flush pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458644.4U CN206706035U (en) | 2017-04-27 | 2017-04-27 | A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720458644.4U CN206706035U (en) | 2017-04-27 | 2017-04-27 | A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device |
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| CN201720458644.4U Active CN206706035U (en) | 2017-04-27 | 2017-04-27 | A kind of mesohigh fluidized-bed gasification furnace wet-dry change combination slag-draining device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760340A (en) * | 2019-12-02 | 2020-02-07 | 河南骏化发展股份有限公司 | Forced continuous slag discharging device for coal gasifier |
| CN114106884A (en) * | 2021-11-16 | 2022-03-01 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
| CN114797682A (en) * | 2022-04-27 | 2022-07-29 | 上海化工院检测有限公司 | Rapid cooling safe melting kettle |
-
2017
- 2017-04-27 CN CN201720458644.4U patent/CN206706035U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760340A (en) * | 2019-12-02 | 2020-02-07 | 河南骏化发展股份有限公司 | Forced continuous slag discharging device for coal gasifier |
| CN114106884A (en) * | 2021-11-16 | 2022-03-01 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
| CN114106884B (en) * | 2021-11-16 | 2022-08-30 | 新奥科技发展有限公司 | Coke discharging system and coke discharging method |
| CN114797682A (en) * | 2022-04-27 | 2022-07-29 | 上海化工院检测有限公司 | Rapid cooling safe melting kettle |
| CN114797682B (en) * | 2022-04-27 | 2024-01-23 | 上海化工院检测有限公司 | Quick cooling safety melting kettle |
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