CN207862273U - The dreg removing system of fixed bed slag gasification furnace - Google Patents
The dreg removing system of fixed bed slag gasification furnace Download PDFInfo
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- CN207862273U CN207862273U CN201721505008.9U CN201721505008U CN207862273U CN 207862273 U CN207862273 U CN 207862273U CN 201721505008 U CN201721505008 U CN 201721505008U CN 207862273 U CN207862273 U CN 207862273U
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- slag bath
- gasification furnace
- insulation cover
- shock chamber
- fire insulation
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Abstract
The utility model is related to the dreg removing systems of fixed bed slag gasification furnace, including shock chamber to be fastenedly connected storage slag bath in the bottom of the molten slag bath in funnel-form with the molten slag bath at the top of the shock chamber, the molten slag bath is arranged；The outer wall of the storage slag bath is fastenedly connected with downward opening fire insulation cover, in the inside of the shock chamber, smoke discharge pipe is set, the arrival end of the smoke discharge pipe stretches into the fire insulation cover, outlet end is pierced by the side wall of the shock chamber, in the side wall of the storage slag bath or bottom, scum pipe is set, bottom surface of the entrance of the scum pipe higher than the storage slag bath, burning spray gun is obliquely installed on the side wall of the shock chamber, the outlet and the outlet of the burning spray gun of the scum pipe are arranged in the fire insulation cover.
Description
Technical field
The utility model is related to a kind of dreg removing systems of fixed bed slag gasification furnace, belong to coal gasification apparatus field.
Background technology
The deslagging slag bath that traditional fixed bed slag gasification furnace uses is mostly inverted cone-shaped structure, and deslagging slag bath inner surface is from upper
It is gradually tapered up under, slag bath inner surface horizontal slope is within the scope of 25 °~60 °.Deslagging passes through furnace body by the way of interval
Pressure difference between shock chamber controls deslagging.Specifically principle is：As the lime-ash of melting adds up in deslagging slag bath, melt cinder
The pressure difference of generation gradually rises, and after reaching certain pressure difference, carries out deslagging, the flue gas by diffusing shock chamber makes melt cinder be discharged into
Shock chamber stops tapping process when pressure difference is less than certain value.
Slag bath bottom is equipped with annular burner, is passed through combustion gas and oxygen-enriched air, and by burning, the heat released ensures in slag bath
Melt cinder do not condense, while burn flue gas slag bath is entered by annular burner, play the role of hold in the palm slag, therefore, the row of slag bath
Cinder notch cannot be excessive.In actual moving process, the support slag gas velocity of annular burner is not easy to control, often result in slag discharge room every when cinder notch
There is melt cinder drippage, deposits and result in blockage on annular burner.In addition to this, melt cinder, which is easy to happen, analyses iron phenomenon, and the density of iron
It is bigger than the density of melt cinder, it is easy to be enriched in the slag-drip opening of bottom, causes the blocking of slag-drip opening, this is also that slag gasification furnace is caused to stop
One big reason of stove.
Invention content
The problem of for background technology, the purpose of this utility model is to provide a kind of tapping process is easily controllable
And the dreg removing system of fixed bed slag gasification furnace that scum pipe is not easy to plug.
To achieve the above object, the utility model uses following technical scheme：A kind of deslagging of fixed bed slag gasification furnace
System, it is characterised in that：Including the shock chamber in the molten slag bath of gasification furnace bottom and positioned at molten slag bath bottom, the slag is arranged
Pond is in funnel-form, and storage slag bath is fastenedly connected in the bottom of the molten slag bath；The outer wall of the storage slag bath is fastenedly connected with opening court
Under fire insulation cover, in the inside of the shock chamber, smoke discharge pipe is set, the arrival end of the smoke discharge pipe stretch into it is described every
In fire cover, outlet end is pierced by the side wall of the shock chamber, and scum pipe, the deslagging is arranged in the side wall of the storage slag bath or bottom
The entrance of pipe is obliquely installed burning spray gun, the scum pipe higher than the bottom surface of the storage slag bath on the side wall of the shock chamber
Outlet be arranged in the fire insulation cover with the outlet of the burning spray gun.
Coolant liquid is housed in the shock chamber, the open end of the fire insulation cover is less than the liquid level of coolant liquid, the fire insulation
Cover and the liquid level of the coolant liquid form a confined space, and the arrival end of the smoke discharge pipe is higher than the liquid level of coolant liquid；
The diffusion valve of control exhaust is provided on the smoke discharge pipe, the pipeline of the smoke discharge pipe, which spirals, to be arranged in the cooling
In liquid.
Angle β meets 0 °≤β≤90 ° between the center line and horizontal plane of the scum pipe.
The fire insulation cover is in the tubular structure of cube or cylinder, and the fire insulation cover is using air-cooled structure, inner wall setting
There is gas vent.
The burning spray gun uses multi-channel structure comprising central tube and ring for being passed through combustion gas are located at the center
The outside endless tube for being passed through air of pipe periphery.
The bottom of the shock chamber is provided with and communicated with a Residue extraction pipeline；The scum pipe uses water-cooling structure.
The side wall of the molten slag bath and the storage slag bath includes the refractory material and water-cooling wall being arranged from inside to outside.
The refractory material includes refractory brick and ramming mass, and the refractory brick uses microporous corundum brick, carbon composite brick or plug
Grand combined corundum brick；The ramming mass is made of refractory aggregate, refractory powder, bonding agent and steel fibre.
The utility model has the following advantages due to taking above technical scheme：1, the utility model includes molten slag bath
With storage slag bath, on storage slag bath, the outlet of scum pipe and the outlet of fuel nozzle ports are arranged in the closed bottom in top for scum pipe setting
In open fire insulation cover, the open end of fire insulation cover is arranged in cooling-liquid level hereinafter, the heat smoke that burning spray gun generates passes through row
Slag pipe enters in storage slag bath, therefore the melt cinder stored up in slag bath is in preferable flow regime to prevent melt cinder cold in scum pipe
It is solidifying, while also acting as the effect of support slag.2, the deslagging slag bath of the utility model uses separate structure, therefore can only replace rapid wear portion
Part reduces the cost of repair slag bath.3, deslagging tube inlet is higher than slag bath bottom in the utility model, keeps the iron being precipitated in melt cinder heavy
It accumulates in slag bath bottom without being deposited in scum pipe, therefore effectively avoids deslagging blockage caused by analysis iron.4, this practicality is new
The burning spray gun of type is stretched by the channel on shock chamber's side wall in shock chamber, therefore is operated when burning spray gun repairs or replaces
It is convenient.5, in the utility model fire insulation cover make high-temperature flue gas that burning lance combustion generates in it corrode less than connection molten slag bath with
The flange of slag bath is stored up, therefore is able to protection flange, often repair is avoided and replaces flange.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model deslagging slag bath；
Fig. 2 is the structural schematic diagram of the utility model storage slag bath.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the utility model proposes a kind of dreg removing system of fixed bed slag gasification furnace, it includes
Shock chamber 1 in the molten slag bath 2 of gasification furnace bottom and positioned at 2 bottom of molten slag bath is set.Wherein, molten slag bath 2 is in funnel-form, molten
The bottom of slag bath is fastenedly connected storage slag bath 3.The outer wall of storage slag bath 3 is fastenedly connected with downward opening fire insulation cover 5, in shock chamber 1
In be loaded with coolant liquid.Smoke discharge pipe 8 is set in the inside of shock chamber 1, the arrival end of smoke discharge pipe 8 stretches into fire insulation cover 5
In, outlet end is pierced by the side wall of shock chamber 1, the flue gas emission generated when being used to cool down melt cinder to the external world.In storage slag bath 3
Scum pipe 4 is arranged in side wall or bottom, and the entrance of scum pipe 4 is higher than the bottom surface for storing up slag bath 3, therefore the iron being precipitated in melt cinder will deposit
In the bottom of storage slag bath 3, analysis iron is avoided to cause the outlet obstruction of scum pipe 4.Burning spray is obliquely installed on the side wall of shock chamber 1
Rifle 7, the outlet of scum pipe 4 are respectively positioned on the outlet of burning spray gun 7 in fire insulation cover 5, and the heat smoke that burning spray gun 7 generates passes through row
Slag pipe 4 enters in storage slag bath 3, ensures that the melt cinder in storage slag bath 3 is in preferable flow regime to prevent melt cinder in scum pipe 4
Interior condensation, while also acting as the effect of support slag.
In above-described embodiment, the liquid level of coolant liquid is higher than the open end of fire insulation cover 5, the liquid level shape of fire insulation cover 5 and coolant liquid
At a confined space, the arrival end of smoke discharge pipe 8 is higher than the liquid level of coolant liquid, and control row is provided on smoke discharge pipe 8
The diffusion valve of gas, the pipeline of smoke discharge pipe 8, which spirals, to be arranged in the coolant liquid of shock chamber 1, when the pressure in fire insulation cover 5 reaches
Diffusion valve is opened after certain value, and smoke discharge pipe 8 discharges flue gas, to play the role of controlling pressure in fire insulation cover 5.
In above-described embodiment, angle is β between the center line and horizontal plane of scum pipe 4, meets 0 °≤β≤90 °, scum pipe
4 are integral casting and use water-cooling structure, are fixed on storage slag bath 3 by flange, can be convenient for more when scum pipe 4 damages
It changes.
In above-described embodiment, the upper end of storage slag bath 3 is connected by flange with the lower end of molten slag bath 2.
In above-described embodiment, for fire insulation cover 5 in the tubular structure of cube or cylinder, fire insulation cover 5 uses air-cooled structure, interior
Wall is provided with gas vent, and fire insulation cover 5 is avoided to be burnt, and the high-temperature flue gas that fire insulation cover 5 makes burning generate corrodes molten less than connection
The flange of slag bath 2 and storage slag bath 3, therefore it is able to protection flange.
In above-described embodiment, burning spray gun 7 uses multi-channel structure comprising central tube and ring are located at central tube periphery
Outside endless tube, central tube are passed through combustion gas, and outside endless tube is passed through air or oxygen-enriched air, the side wall that burning spray gun 7 passes through shock chamber 1
On channel stretch into inside deslagging slag bath.
In above-described embodiment, the bottom of shock chamber 1 is provided with and communicated with a Residue extraction pipeline 6, can easily be arranged venting by it
Slag pipe 4 comes melt cinder in shock chamber 1.
In above-described embodiment, the side wall of molten slag bath 2 and storage slag bath 3 includes the refractory material being arranged from inside to outside and water cooling
Wall.Refractory material includes refractory brick and ramming mass etc., and refractory brick has the ability that stronger anti-clinker and molten iron corrode, preferred microporous
Corundum brick, carbon composite brick, Sialon combined corundum brick etc..Ramming mass, preferably steely fiber fireproof material, by refractory aggregate, resistance to
Fiery powder, bonding agent and steel fibre composition；Fine copper, steel can be used in the preferred fine copper structure of water-cooling wall, pre-buried cooling water pipe material
Or spheroidal graphite cast-iron, preferably steel.
The operation principle of the deslagging slag bath of the utility model is as follows：
The deslagging slag bath and gasification furnace of the utility model match, the lower end of the upper end and gasification furnace body of shock chamber 1
It connects, the melt cinder generated in gasification furnace gasification is pooled to by molten slag bath 2 in storage slag bath 3, constantly tired in storage slag bath 3
Product；Burning spray gun 7 generate heat smoke by scum pipe 4 enter storage slag bath 3 in, ensure storage slag bath 3 in melt cinder be in compared with
Good flow regime also acts as the effect of support slag to prevent melt cinder condensation in scum pipe 4.
After the pressure difference in gasification furnace and fire insulation cover 5 increases to certain value, the diffusion valve on smoke discharge pipe 8 is opened to drop
Pressure in low fire insulation cover 5, while the gas flow rate of burning spray gun 7 is reduced, carry out deslagging；When in gasification furnace and fire insulation cover 5
After pressure difference is reduced to certain value, the diffusion valve on smoke discharge pipe 8 is closed, while improving the gas flow rate of burning spray gun 7, stopped
Deslagging completes a tapping process in summary.
During gasifier operation, such as it is in the presence of stopping in emergency, is sprayed into gasification furnace by controlling burning spray gun 7
The flow velocity of gas avoids melt cinder from entering condensation in scum pipe 4, results in blockage, influence being again started up for gasification furnace.
The utility model is only illustrated with above-described embodiment, and structure, installation position and its connection of each component are all can
It is all that individual part is carried out according to the utility model principle on the basis of technical solutions of the utility model with what is be varied from
Improvement and equivalents, should not exclude except the scope of protection of the utility model.
Claims (7)
1. a kind of dreg removing system of fixed bed slag gasification furnace, it is characterised in that：Including the molten slag bath in gasification furnace bottom is arranged
With the shock chamber positioned at molten slag bath bottom, the molten slag bath is in funnel-form, and storage slag bath is fastenedly connected in the bottom of the molten slag bath；
The outer wall of the storage slag bath is fastenedly connected with downward opening fire insulation cover, and smoke discharge pipe is arranged in the inside of the shock chamber,
The arrival end of the smoke discharge pipe stretches into the fire insulation cover, and outlet end is pierced by the side wall of the shock chamber, in the storage slag
Scum pipe is arranged in the side wall in pond or bottom, and the entrance of the scum pipe is higher than the bottom surface for storing up slag bath, in the shock chamber
Burning spray gun is obliquely installed on side wall, the outlet and the outlet of the burning spray gun of the scum pipe are arranged at the fire insulation cover
It is interior.
2. the dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：It is filled in the shock chamber
There are coolant liquid, the open end of the fire insulation cover to be less than the liquid level of coolant liquid, the fire insulation cover and the liquid level of the coolant liquid are formed
One confined space, the arrival end of the smoke discharge pipe are higher than the liquid level of coolant liquid；Control is provided on the smoke discharge pipe
The diffusion valve of exhaust is made, the pipeline of the smoke discharge pipe, which spirals, to be arranged in the coolant liquid.
3. the dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：The center of the scum pipe
Angle β meets 0 °≤β≤90 ° between line and horizontal plane.
4. the dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：The fire insulation cover is in cube
The tubular structure of shape or cylinder, the fire insulation cover use air-cooled structure, inner wall to be provided with gas vent.
5. a kind of dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：The burning spray gun
Using multi-channel structure comprising central tube and ring for being passed through combustion gas be located at the central tube periphery for being passed through air
Outside endless tube.
6. the dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：The bottom of the shock chamber
It is provided with and communicated with a Residue extraction pipeline；The scum pipe uses water-cooling structure.
7. the dreg removing system of fixed bed slag gasification furnace as described in claim 1, it is characterised in that：The molten slag bath and described
The side wall for storing up slag bath includes the refractory material and water-cooling wall being arranged from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505008.9U CN207862273U (en) | 2017-11-13 | 2017-11-13 | The dreg removing system of fixed bed slag gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505008.9U CN207862273U (en) | 2017-11-13 | 2017-11-13 | The dreg removing system of fixed bed slag gasification furnace |
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| Publication Number | Publication Date |
|---|---|
| CN207862273U true CN207862273U (en) | 2018-09-14 |
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ID=63474809
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721505008.9U Active CN207862273U (en) | 2017-11-13 | 2017-11-13 | The dreg removing system of fixed bed slag gasification furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723033A (en) * | 2017-11-13 | 2018-02-23 | 煤炭科学技术研究院有限公司 | A kind of dreg removing system of fixed bed slag gasification furnace |
-
2017
- 2017-11-13 CN CN201721505008.9U patent/CN207862273U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723033A (en) * | 2017-11-13 | 2018-02-23 | 煤炭科学技术研究院有限公司 | A kind of dreg removing system of fixed bed slag gasification furnace |
| CN107723033B (en) * | 2017-11-13 | 2023-09-12 | 煤炭科学技术研究院有限公司 | Slag discharging system of fixed bed slag gasifier |
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