CN108165312A - A kind of full water cooling formula fixed bed slag tap gasification installation - Google Patents
A kind of full water cooling formula fixed bed slag tap gasification installation Download PDFInfo
- Publication number
- CN108165312A CN108165312A CN201810140880.0A CN201810140880A CN108165312A CN 108165312 A CN108165312 A CN 108165312A CN 201810140880 A CN201810140880 A CN 201810140880A CN 108165312 A CN108165312 A CN 108165312A
- Authority
- CN
- China
- Prior art keywords
- furnace body
- fixed bed
- fire insulation
- insulation cover
- gasification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 61
- 239000002893 slag Substances 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 34
- 230000035939 shock Effects 0.000 claims abstract description 12
- 239000011819 refractory material Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- -1 Gao Ge Inorganic materials 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000003818 cinder Substances 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The present invention relates to a kind of full water cooling formula fixed bed slag tap gasification installations, it is characterised in that：Including the furnace body that gasifies, the gasification furnace body includes furnace shell and the fin panel casing being arranged on the inside of the furnace shell, at the top of the gasification furnace body, feed inlet is set, on the top of the gasification furnace body, gas exit is set, in the one circle nozzle of lower part setting of the gasification furnace body, in the bottom centre of the fin panel casing, slag-drip opening is set, the bottom of the furnace shell is fixedly connected by flange with shock chamber, the top of the flange is fixedly connected by support plate with the slag-drip opening, the fire insulation cover that Open Side Down is provided in the shock chamber, the slag-drip opening stretches into the fire insulation cover, annular burner is set in the bottom of the slag-drip opening, the annular burner is arranged in the fire insulation cover.
Description
Technical field
The present invention relates to a kind of full water cooling formula fixed bed slag tap gasification installations, belong to coal gasification apparatus field.
Background technology
Typical pressurization static bed slag tap gasification furnace usually uses the cold structure of copper water in slag slag bath region, to prolong
The service life of long high temperature slag area refractory material.Pre-buried cooling water pipe inside copper water cold part, processing is complicated, and cost compared with
It is high.In addition, the safety to ensure copper casting, using the mode of Forced water cooling mode, the cooling water outlet and inlet temperature difference should not be too large, and lead
Cause slag area water-cooling wall cooling water circulation amount larger, and the heat that cooling water is taken away cannot be utilized directly, reduce entire gasification
Stove is to the utilization ratio of heat.
On the other hand, the temperature for guarantee gasification stove outer covering is in safe range, and traditional fixed bed slag gasification furnace is in stove
One layer of water leg of setting in shell, but water leg bearing capacity is poor, in gasification, due to gasification furnace pressure oscillation, easily
Water leg is caused to bring security risk to the operation of gasification furnace there is a situation where squeezing flat or racking.Furthermore traditional fixed bed liquid
The fire insulation cover of deslagging gasification furnace is one layer of stainless-steel sheet, needs Long Term Contact high-temperature flue gas in operational process, is susceptible to scaling loss
The problem of.
Invention content
The problem of for background technology, the purpose of the present invention is to provide one kind is simple in structure, processing cost is low
Full water cooling formula fixed bed slag tap gasification installation.
To achieve the above object, the present invention uses following technical scheme：A kind of full water cooling formula fixed bed slag tap gasification
Device, it is characterised in that：Including the furnace body that gasifies, the gasification furnace body includes furnace shell and the film being arranged on the inside of the furnace shell
Formula water-cooling wall, feed inlet is set at the top of the gasification furnace body, and gas exit is set on the top of the gasification furnace body,
In the one circle nozzle of lower part setting of the gasification furnace body, slag-drip opening is set in the bottom centre of the fin panel casing, it is described
The bottom of furnace shell is fixedly connected by flange with shock chamber, and the top of the flange is fixed by support plate and the slag-drip opening to be connected
It connects, the fire insulation cover that Open Side Down is provided in the shock chamber, the slag-drip opening stretches into the fire insulation cover, in the slag-drip opening
The annular burner of bottom setting, the annular burner is arranged in the fire insulation cover.
The furnace shell and fin panel casing are cylinder-like structure and upper and lower ends use closing-in structure.
The upper and lower header of the fin panel casing is arranged in the top and bottom of the gasification furnace body and positioned at institute
It states between furnace shell and the fin panel casing.
Circumferentially distributed and pairs of arrangement of the nozzle along the gasification furnace body, per a pair of nozzles about the gasification furnace
The central axes of furnace body are symmetrical.
Equipped with coolant in the shock chamber, the openend of the fire insulation cover is located at below the liquid level of the coolant.
The fire insulation cover is cylinder or cube shaped, and the fire insulation cover is three-dimensional cloth wind formula fire insulation cover, and inner wall is provided with
Gas vent, body of ventilating are air or oxygen-enriched air.
The fin panel casing disposed inboard has refractory material.
The refractory material that the fin panel casing lower part is arranged be corundum, Gao Ge, silicon carbide or silicon nitride, the membrane type
The refractory material that water-cooling wall middle and upper part is arranged is clayey, High-Alumina, diatomite, calcium silicates or siliceous.
The present invention has the following advantages due to taking above technical scheme：1st, gasification furnace body of the invention only with
Double-layer structure, it is simple in structure, it is easy to process, the cost of fixed bed slag gasification furnace can be significantly reduced.2nd, the present invention is to gasification
Furnace body integrally uses the structure of fin panel casing, and the heat that can efficiently use high-temperature region generation improves gasification furnace middle and upper part
Temperature makes retort process carry out at a higher temperature, reduces the tar yield of retort section, improves tar quality；In addition, reaction
Lime-ash afterwards is in molten condition in high-temperature region, and in the bottom accumulation of gasification furnace body, melt cinder and the fin panel casing of accumulation exchange heat,
The heat that high-temperature region generates is taken away, and pass to gasification furnace upper of furnace body by fin panel casing, heat is recycled, therefore can
To improve the thermal efficiency of apparatus of the present invention entirety.3rd, the present invention replaces water leg with fin panel casing, can not only ensure to gasify
Stove outer covering is within the scope of the temperature of safety, additionally it is possible to improve compressive resistance, ensure the operation peace when furnace pressure fluctuation is larger
Entirely.4th, the present invention is reduced the temperature of fire insulation cover by cooling air, fire insulation cover is effectively prevent to burn using three-dimensional cloth wind formula fire insulation cover
Damage extends the service life of fire insulation cover；In addition, three-dimensional cloth wind makes the flow field in fire insulation cover more stable, the burning of burner is improved
Stability.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention proposes a kind of full water cooling formula fixed bed slag tap gasification installation, including gasification furnace stove
Body 1, gasification furnace body 1 include furnace shell 2 and are arranged on the fin panel casing 3 of 2 inside of furnace shell, set at the top of gasification furnace body 1
Put feed inlet 4, gas exit 5 be set on the top of gasification furnace body 1, gas exit 5 pass through furnace shell 2 and fin panel casing 3 and
It is connected with the inside for the furnace body 1 that gasifies.Nozzle 6 is enclosed in the lower part setting one of gasification furnace body 1, in the bottom of fin panel casing 3
Centrally disposed slag-drip opening 7.The bottom of furnace shell 2 is fixedly connected by flange with shock chamber 8, the top of flange by support plate 9 with
Slag-drip opening 7 is fixedly connected, and support plate 9 is used to support slag-drip opening 7.The fire insulation cover 11 that Open Side Down is provided in shock chamber 8, is arranged
Cinder notch 7 stretches into fire insulation cover 11, and annular burner 12 is set in the bottom of slag-drip opening 7, and annular burner 12 is arranged in fire insulation cover 11.
Further, furnace shell 2 and fin panel casing 3 are cylinder-like structure and upper and lower ends use closing-in structure.
Further, the upper and lower header 13 of fin panel casing 3 be arranged in gasification furnace body 1 top and bottom and
Between furnace shell 2 and fin panel casing 3.
Further, circumferentially distributed and pairs of arrangement of the nozzle 6 along gasification furnace body 1, per a pair of nozzles 6 about gasification furnace
The central axes of furnace body 1 are symmetrical.
Further, equipped with coolant in shock chamber 8, the openend of fire insulation cover 11 is located at below the liquid level of coolant.
Further, fire insulation cover 11 is cylinder or cube shaped, and fire insulation cover 11 is three-dimensional cloth wind formula fire insulation cover, and inner wall is set
Gas vent is equipped with, body of ventilating is air or oxygen-enriched air.
Further, 3 disposed inboard of fin panel casing has refractory material；The refractory material arranged on different height is not
Together, the refractory material that fin panel casing lower part is arranged need to have stronger heat conductivility, and with stronger anti-clinker and iron
The ability of water erosion, preferably corundum, Gao Ge, silicon carbide or silicon nitride etc.；The refractory material that fin panel casing middle and upper part uses needs
Clayey, High-Alumina, diatomite, calcium silicates or siliceous can be selected in refractory material with heat-insulating property.
The course of work and principle of the present invention is as follows：(1) gasified raw material is by being located at the feed inlet 4 at the top of gasification furnace body 1
Into in stove, the high-temperature gas adverse current direct heat transfer with gasification generation, while indirect heat exchange is carried out between fin panel casing 2,
Dry and retort process occurs.(2) gasifying agent enters gasification furnace body 1 by nozzle 6 and is reacted with gasified raw material, is formed high
Warm area, the lime-ash after reaction are accumulated in high-temperature region in molten condition, and in the bottom of gasification furnace body 1；The melt cinder and film of accumulation
Formula water-cooling wall 3 exchanges heat, and the heat that high-temperature region generates is taken away by fin panel casing 3, and passes to 1 top of gasification furnace body, to heat
Amount is recycled, and improves the thermal efficiency of apparatus of the present invention entirety.(3) melt cinder of melting condenses on fin panel casing 3, is formed
One layer of crust block can play the role of extending with slag anti-slag the service life of slag area refractory material and fin panel casing 3.(4)
After melt cinder is accumulated to a certain amount, it is discharged into shock chamber 8 by the slag-drip opening 7 for 1 bottom of furnace body of gasifying, in shock chamber 8
It is cooled to the condensation slag of glassy state rapidly by coolant.(5) the annular burner 12 of the lower section of slag-drip opening 7 be passed through combustion gas and air into
Row burning, the heat smoke for generation of burning enter slag area by slag-drip opening 7, and melt cinder is made to keep good mobility, prevents melt cinder
It is condensed in slag-drip opening 7, while perturbation action is played to melt cinder.(6) air of room temperature or oxygen-enriched air are by three-dimensional cloth wind formula fire insulation
Cover is passed through, and reduces the temperature of fire insulation cover, extends the service life of fire insulation cover, while the work of preheating is played to the gas being passed through
With.Three-dimensional cloth wind mode, it is smaller to the gas flowfield disturbance in fire insulation cover, help to improve the stabilization of annular burner flame
Property.
The present invention is only illustrated with above-described embodiment, and structure, installation position and its connection of each component are all can have
Changed, on the basis of technical solution of the present invention, all improvement carried out according to the principle of the invention to individual part and equivalent
Transformation, should not exclude except protection scope of the present invention.
Claims (8)
1. a kind of full water cooling formula fixed bed slag tap gasification installation, it is characterised in that：Including the furnace body that gasifies, the gasification furnace
Furnace body includes furnace shell and the fin panel casing being arranged on the inside of the furnace shell, and charging is set at the top of the gasification furnace body
Mouthful, gas exit is set on the top of the gasification furnace body, one circle nozzle is set in the lower part of the gasification furnace body, in institute
Bottom centre's setting slag-drip opening of fin panel casing is stated, the bottom of the furnace shell is fixedly connected by flange with shock chamber, described
The top of flange is fixedly connected by support plate with the slag-drip opening, and the fire insulation that Open Side Down is provided in the shock chamber
Cover, the slag-drip opening stretch into the fire insulation cover, and annular burner is set in the bottom of the slag-drip opening, and the annular burner is arranged in
In the fire insulation cover.
2. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：The furnace shell
With fin panel casing be cylinder-like structure and upper and lower ends use closing-in structure.
3. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：The membrane type
The upper and lower header of water-cooling wall is arranged in the top and bottom of the gasification furnace body and positioned at the furnace shell and the membrane type
Between water-cooling wall.
4. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：The nozzle
Along the circumferentially distributed and pairs of arrangement of the gasification furnace body, the central axes pair per a pair of nozzles about the gasification furnace body
Claim.
5. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：Swash described
Equipped with coolant in cold house, the openend of the fire insulation cover is located at below the liquid level of the coolant.
6. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：The fire insulation
Cover cylinder or cube shaped, the fire insulation cover is three-dimensional cloth wind formula fire insulation cover, and inner wall is provided with gas vent, body of ventilating
For air or oxygen-enriched air.
7. a kind of full water cooling formula fixed bed slag tap gasification installation as described in claim 1, it is characterised in that：The membrane type
Water-cooling wall disposed inboard has refractory material.
8. a kind of full water cooling formula fixed bed slag tap gasification installation as claimed in claim 7, it is characterised in that：The membrane type
The refractory material that water-cooling wall lower part is arranged be corundum, Gao Ge, silicon carbide or silicon nitride, fin panel casing middle and upper part institute cloth
The refractory material put is clayey, High-Alumina, diatomite, calcium silicates or siliceous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140880.0A CN108165312A (en) | 2018-02-11 | 2018-02-11 | A kind of full water cooling formula fixed bed slag tap gasification installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140880.0A CN108165312A (en) | 2018-02-11 | 2018-02-11 | A kind of full water cooling formula fixed bed slag tap gasification installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108165312A true CN108165312A (en) | 2018-06-15 |
Family
ID=62514154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810140880.0A Pending CN108165312A (en) | 2018-02-11 | 2018-02-11 | A kind of full water cooling formula fixed bed slag tap gasification installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108165312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117304978A (en) * | 2023-10-10 | 2023-12-29 | 北京清创晋华科技有限公司 | Pressurized fixed bed gasifier device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050387A (en) * | 2007-05-22 | 2007-10-10 | 西安热工研究院有限公司 | Entrained flow gasification installation for compressive dry coal powder and under slag draining in solid state |
| CN204325270U (en) * | 2014-10-16 | 2015-05-13 | 煤炭科学技术研究院有限公司 | Liquid continuous discharging slag fixed-bed gasification furnace |
| CN104946310A (en) * | 2015-03-30 | 2015-09-30 | 上海倍能化工技术有限公司 | Moving bed gasification furnace |
| CN107674712A (en) * | 2017-11-13 | 2018-02-09 | 煤炭科学技术研究院有限公司 | A kind of fixed bed slag gasification furnace |
| CN207987119U (en) * | 2018-02-11 | 2018-10-19 | 煤炭科学技术研究院有限公司 | Full water cooling formula fixed bed slag tap gasification installation |
-
2018
- 2018-02-11 CN CN201810140880.0A patent/CN108165312A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050387A (en) * | 2007-05-22 | 2007-10-10 | 西安热工研究院有限公司 | Entrained flow gasification installation for compressive dry coal powder and under slag draining in solid state |
| CN204325270U (en) * | 2014-10-16 | 2015-05-13 | 煤炭科学技术研究院有限公司 | Liquid continuous discharging slag fixed-bed gasification furnace |
| CN104946310A (en) * | 2015-03-30 | 2015-09-30 | 上海倍能化工技术有限公司 | Moving bed gasification furnace |
| CN107674712A (en) * | 2017-11-13 | 2018-02-09 | 煤炭科学技术研究院有限公司 | A kind of fixed bed slag gasification furnace |
| CN207987119U (en) * | 2018-02-11 | 2018-10-19 | 煤炭科学技术研究院有限公司 | Full water cooling formula fixed bed slag tap gasification installation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117304978A (en) * | 2023-10-10 | 2023-12-29 | 北京清创晋华科技有限公司 | Pressurized fixed bed gasifier device |
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