CN202509053U - Gasification furnace and shock cooling chamber thereof - Google Patents
Gasification furnace and shock cooling chamber thereof Download PDFInfo
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- CN202509053U CN202509053U CN 201220182302 CN201220182302U CN202509053U CN 202509053 U CN202509053 U CN 202509053U CN 201220182302 CN201220182302 CN 201220182302 CN 201220182302 U CN201220182302 U CN 201220182302U CN 202509053 U CN202509053 U CN 202509053U
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Abstract
The utility model discloses a gasification furnace and a shock cooling chamber thereof. The shock cooling chamber of the gasification furnace comprises a down pipe, wherein the down pipe comprises a gas falling cylinder and a gas distribution cylinder, the lower end of the gas falling cylinder extends into the gas distribution cylinder, a gas dispersion net is arranged in the annular space between the gas distribution cylinder and the gas falling cylinder, the lower edge of the gas falling cylinder is lower than the plane where the gas dispersion net is located, and the plane where the gas dispersion net is located is lower than the liquid level of the shock cooling chamber. Compared with the prior art, the shock cooling chamber has the advantages that a rising pipe is removed, so that water inclusion phenomenon of synthetic gas in the shock cooling chamber is effectively inhibited; and due to presence of the gas dispersion net, the effects of water bath humidification, dedusting, deashing and cooling of the synthetic gas are improved.
Description
Technical field
The utility model relates to air-flow gasification field, relates in particular to a kind of vapourizing furnace and shock chamber thereof.
Background technology
Coal is a kind of important energy, and for a long time, coal in use is accompanied by serious environmental and pollutes.In recent years, be that the clean coal technology of purpose is paid attention to by people day by day to reduce disposal of pollutants with improving utilising efficiency; Coal Gasification Technology is as wherein processing of a kind of coal and transformation technology, is considered to one of clean coal technology of high-efficiency cleaning the most.
Modern Coal Gasification Technology, especially high pressure, large vol entrained flow bed gasification technology obtain widespread use in industry.There has been how tame producer to introduce and utilize modern entrained flow bed gasification technology in China; Modern entrained flow bed gasification technology mainly is divided into coal water slurry gasification and coal gasification; Modern entrained flow bed gasification technology has that environmental pollution is little, the level of automation advantages of higher; But this technical matters has some ubiquitous problems, and these problems affect the normal operation of gasification installation in varying degrees.
Coal water slurry or coal dust incomplete combustion in the vapourizing furnace combustion chamber generates about 1350 ℃ the high-temperature synthesis gas and the shock chamber of slag entering vapourizing furnace bottom.The shock chamber mainly contains chilling ring, downtake, upcast and skimming baffle in the prior art.
Chilling ring is positioned at cinder notch downside downtake top; The effect of chilling ring is that chilled water is evenly distributed on the downtake inwall; Form liquid film; This layer liquid film effectively kept apart downtake and high-temperature synthesis gas and melting slag, thereby the protection downtake is not burnt out by high-temperature synthesis gas and slag, simultaneously high-temperature synthesis gas to a certain extent Quench lower the temperature.
Upcast and downtake are the concentric co-axial tube-in-tube structure, and downtake is enclosed within the upcast, and high-temperature synthesis gas is from downtake and chilled water and stream and descend, and the completion temperature-fall period then goes out the vapourizing furnace shock chamber through the annular space between upcast and the downtake.
When high-temperature synthesis gas and downtake liquid film carry out the heat exchange mass transfer; The coal ash of that part of synthetic gas that contacts with liquid film gets into liquid phase and obtains to remove; And the most of coal ash in the synthetic gas of downtake central authorities is not washed just with synthetic gas entering water-bath; After passing the downtake lower edge apace, synthetic gas with the form of air mass immediately upwards bubbling leave water-bath, in this process; Have only the coal ash of air mass outside surface to contact the acquisition washing with water, most of coal ash of air mass central authorities does not still obtain rinsing machine and can just leave water-bath yet.
Most of coal ash in the synthetic gas is washed removing at washing tower; The washing water on washing tower water-bath top are supplied with chilling ring conversely as chilled water and are used; Though chilled water is taken from washing tower water-bath top, because a large amount of coal ash is washed in the water-bath, the washing water on water-bath top still contain the especially a large amount of small solid particulate of a lot of coal ash; Even the chilled water strainer filters out the macrobead that stops up the chilling ring outlet like this; But the dead band that these small solid particulates also can flow faint in chilling ring deposition accumulates gradually, has influence on the homogeneity of the rate of discharge and the whole outlet annular space water flow of chilling ring chilled water the most at last; And then cause the uneven even cutout of downtake liquid film, thereby cause damages such as downtake is out of shape, burns.
The concentration of small solid particulate is high more in the chilled water; This speed that the dead band deposition accumulates in chilling ring is also fast more; The work-ing life of downtake is also short more like this; When each Texaco gasifier operation for some time parking maintenance, all can find a large amount of mud that depositing in the chilling ring endless tube, the sedimentary result of these small solid particulates that Here it is.
In addition, when the production duty ratio is higher, because the annular space between upcast and the downtake is narrow; Flow velocity is fast after causing synthetic gas to leave water-bath; Be prone to cause the phenomenon of synthetic gas carrying liquid, be provided with skimming baffle in the passage even the synthetic gas in the shock chamber leaves, swiftly flowing gas is still swept away the small droplets on the baffle plate and is with liquid once more; Shock chamber's band liquid causes liquid level quick decline in shock chamber's to cause vapourizing furnace to jump car easily; Must strengthen the chilled water supply flow in the production to guarantee liquid level, the waste that has so not only increased energy consumption and water resources has also strengthened the load of back system quickly, has influenced stable operation; When the vapourizing furnace service temperature is higher, cause thermal load high, make saturated vapor pressure increase, this also can cause synthetic band of gas water to get into the back system.
For the vapourizing furnace of prior art, when superelevation was loaded, partial synthesis gas can be walked around upcast lower edge formation air pocket bubbling and leave water-bath, the liquid level warning that can cause shock chamber's liquid fluctuating and fluctuation to cause like this, even jump car.
One Chinese patent application numbers 200720103616.7 provides a kind of atomizing-immersion vapourizing furnace shock chamber; In fact and be not suitable for coal dust/coal slurry gasifier; Especially be not suitable for the pressing gas stove; The wearing and tearing fast because its structural defective causes its spraying gun and atomizer to receive washing away strongly of high-temperature slag and coal ash easily make inside, shock chamber damage fast, thereby can't guarantee the long-play of vapourizing furnace.
How to reduce the content of small solid particulate in the chilled water of supply, alleviate these particles in chilling ring alluvial and how to alleviate synthetic band of gas water and become an important problem, the excellent operation of covering with of gasification is had great significance.
The utility model content
The purpose of the utility model is a kind of vapourizing furnace and shock chamber thereof, to improve the water-bath humidification dedusting ash disposal cooling-down effect of synthetic gas, alleviates the problem of synthetic band of gas water simultaneously.
For this reason, an aspect according to the utility model provides a kind of vapourizing furnace shock chamber; Comprise downtake, this downtake comprises sending down abnormally ascending tube and air-distributing tube, wherein; The lower end of sending down abnormally ascending tube is stretched in the air-distributing tube; Be provided with the gas net that looses in the annular space between air-distributing tube and the sending down abnormally ascending tube, the lower edge of sending down abnormally ascending tube is lower than the plane at the gas net place of loosing, and the plane at the gas net place of loosing is lower than shock chamber's liquid level.
Further, the following low 500～1000mm in plane of above-mentioned sending down abnormally ascending tube than diffusing gas net place.
Further, above-mentioned diffusing gas net plane is lower than the liquid level 1500～4000mm of shock chamber.
Further, above-mentioned sending down abnormally ascending tube lower edge is a zig-zag.
Further, the lower edge of above-mentioned air-distributing tube is a zig-zag.
Further, above-mentioned diffusing gas net is arranged on the top of air-distributing tube.
Further, the network interface cross section of above-mentioned diffusing gas net is Polygons or circle, and each network interface sectional area is 2.25～25cm2.
Further, above-mentioned diffusing gas net is staggered being welded of reinforcing bar of 0.5～1.2cm by diameter.
Further, above-mentioned sending down abnormally ascending tube is fixedly connected with shock chamber's inwall through bracing frame with air-distributing tube.
Further, above-mentioned vapourizing furnace shock chamber also is included in the water spray endless tube that liquid level top is provided with, and the water ring pipe has a plurality of water jets that the periphery that is looped around the sending down abnormally ascending tube is sprayed water down.
Further, the top of above-mentioned shock chamber liquid level is provided with a plurality of ring baffles, and a plurality of ring baffles are along the short transverse staggered arrangement of shock chamber.
According to the utility model on the other hand, a kind of vapourizing furnace is provided, has comprised combustion chamber and the shock chamber that is positioned at the below, combustion chamber, wherein, this shock chamber is described vapourizing furnace shock chamber above the basis.
Compared with prior art; The utility model is removed upcast, has further suppressed the water phenomenon of shock chamber's synthetic gas, because the existence of the gas net that looses; Big strand synthetic gas is cut into many elongated bubbles by diffusing gas net; So just increased the washing area of synthetic gas, improved the water-bath humidification dedusting ash disposal cooling-down effect of synthetic gas greatly, got into washing tower thereby avoided synthetic gas to carry too much coal ash secretly; Promptly alleviated the load of washing tower, the fine solid particle content in the washing tower water-bath is reduced greatly.
Except top described purpose, characteristic and advantage, other purpose, characteristic and the advantage that the utlity model has are with combining accompanying drawing to do further detailed explanation.
Description of drawings
Constitute the preferred embodiment that the part of this specification sheets, the accompanying drawing that is used for further understanding the utility model show the utility model, and be used for explaining the principle of the utility model with specification sheets.Among the figure:
Fig. 1 is the structural representation according to the air-flow vapourizing furnace of the utility model first embodiment, wherein shows the structure of vapourizing furnace shock chamber;
Fig. 2 is the B-B schematic cross-section of air-flow vapourizing furnace shown in Figure 1;
Fig. 3 is the structural representation according to the air-flow vapourizing furnace of the utility model second embodiment;
Fig. 4 is the C-C schematic cross-section of air-flow vapourizing furnace shown in Figure 3; And
Fig. 5 is the plane figure synoptic diagram of a plurality of ring baffles of air-flow vapourizing furnace shown in Figure 3.
Description of reference numerals
20 combustion chambers, 10 shock chambers
12 chilling rings, 11 downtakes
13 chilled water pipelines, 14 supports
111 sending down abnormally ascending tube 111a sending down abnormally ascending tube lower edges
112 air-distributing tube 112a air-distributing tube lower edges
Ring in the 113 diffusing gas net 113a
113b outer shroud 113c dictyosome
114 water spray endless tube 114a water jets
21 cinder notch.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 1 and Fig. 2 show the schematic structure according to the air-flow vapourizing furnace of the utility model first embodiment.As depicted in figs. 1 and 2, the air-flow vapourizing furnace comprises combustion chamber 20 and the shock chamber 10 that is positioned at the below, combustion chamber, and high-temperature synthesis gas in the combustion chamber 20 and slag enter into downtake 11 through the cinder notch 21 of its bottom.
In the present embodiment; Do not adopt the upcast downtake double-sleeve structure of the concentric co-axial of prior art; Only keep downtake; This downtake 11 comprises sending down abnormally ascending tube 111 and air-distributing tube 112 two portions, the continuous up and down part tube-in-tube structure of the two concentric co-axial, and all be fixedly connected with shock chamber's inwall by the bracing frame that is fixed on its outer wall 14; Bracing frame 14 plays the effect of firm downtake 11 positions and structure, and sending down abnormally ascending tube 111 bottoms are fixedly connected with the interior ring of the diffusing gas net 113 at air-distributing tube 112 tops.
Sending down abnormally ascending tube 111 lower edge 111a are the zig-zag opening and stretch into air-distributing tube 112; Be lower than the gas net plane 500～1000mm that looses; Air-distributing tube 112 internal diameters are bigger and slightly littler than shock chamber internal diameter than sending down abnormally ascending tube 111; Air-distributing tube 112 tops are the gas net 113 that looses, and during ordinary production, liquid level should be higher than the gas net plane 1500～4000mm that looses.
Network interface should not be too little, and the network interface cross section is preferably 2.25～25cm
2, in case coal ash or clinker obstruction, the rounded or Polygons in network interface cross section, the gas net 113 that looses can be staggered being welded of reinforcing bar about 0.5～1.2cm by diameter.
The gas net 113 that looses can be made up of interior ring 113a, outer shroud 113b and dictyosome 113c, and outer shroud 113a is connected with air-distributing tube 1112, and interior ring 113b is connected with sending down abnormally ascending tube 111, realizes the fixing of gas net that loose.The support that outer shroud directly is fixedly attached on shock chamber's inwall is fixed.
The lower edge 112a of air-distributing tube 112 also is the zig-zag opening, and chilling ring 12 bottoms are fixedly connected with sending down abnormally ascending tube 111 tops.
In the gasifier operation process; Behind the chilled water entering chilling ring 12 from washing tower; Chilled water outlet annular space flows out or spray orifice sprays to sending down abnormally ascending tube inwall from the chilling ring lower end from forming between chilling ring 12 lower ends and the sending down abnormally ascending tube 111; Chilled water is evenly distributed on sending down abnormally ascending tube 111 inwalls, forms liquid film, and this layer liquid film effectively kept apart sending down abnormally ascending tube 111 and high-temperature synthesis gas and melting slag; Thereby the protection downtake is not burnt out by high-temperature synthesis gas and slag, high-temperature synthesis gas Quench cooling to a certain extent simultaneously.
Synthetic gas gets into air-distributing tube 112 after passing the sending down abnormally ascending barrel saw profile of tooth lower edge 111a that can suppress to produce the ultra-large type bubble; The existence of gas net 113 owing to loose; Big strand synthetic gas is cut into many elongated bubbles by diffusing gas net 113; So just increased the washing area of synthetic gas, improved the water-bath humidification dedusting ash disposal cooling-down effect of synthetic gas greatly, got into washing tower thereby avoided synthetic gas to carry too much coal ash secretly; Promptly alleviated the load of washing tower, the fine solid particle content in the washing tower water-bath is reduced greatly.
Like this; Fine solid particle content in the chilled water of supply chilling ring also can reduce; Also just alleviated the alluvial of these fine particles in chilling ring; Thereby can delay the deposition alluvial of small solid particulate in chilling ring in the chilled water, and then can stablize the homogeneity of the rate of discharge and the whole outlet annular space water flow of chilling ring chilled water for more time, thereby prolong the cycle of operation of vapourizing furnace effectively.
Simultaneously, big strand synthetic gas is cut into many elongated bubbles, the liquid level warning of also having avoided large-scale synthetic gas bubble bubbling to cause shock chamber's liquid fluctuating and fluctuation to cause by diffusing gas net; Bigger owing to synthetic gas temperature fall simultaneously, thus its saturated vapor pressure and thermal load reduced, and then suppressed the water phenomenon of shock chamber's synthetic gas; Because there is not upcast; The flow area of synthetic gas increases greatly, makes the synthetic gas flow velocity descend, and has further suppressed the band water of synthetic gas.
When the vapourizing furnace superelevation was loaded, partial synthesis gas left water-bath after also can passing the air-distributing tube zig-zag lower edge 112a that can suppress to produce the ultra-large type bubble, helps the liquid level warning that prevents that super large bubble bubbling from causing shock chamber's liquid fluctuating and fluctuation to cause.
Synthetic gas through water-bath leaves shock chamber 10 through the outlet 15 on 10 tops, shock chamber, gets into next treatment process.
The advantage of present embodiment is following:
(1) sending down abnormally ascending tube and the air-distributing tube concentric co-axial part tube-in-tube structure that links to each other up and down; And two zig-zag designs; During vapourizing furnace superelevation load; Partial synthesis gas leaves water-bath after also can passing the air-distributing tube zig-zag lower edge that can suppress to produce the ultra-large type bubble, helps preventing that shock chamber's liquid fluctuating and fluctuation that super large bubble bubbling produces from causing liquid level warning to cause vapourizing furnace to jump car;
(2) unique design of the diffusing gas net in air-distributing tube top; Improved the water-bath humidification dedusting ash disposal cooling-down effect of synthetic gas greatly; Thereby avoided synthetic gas to carry too much coal ash secretly and got into washing tower; Thereby can delay the deposition alluvial of small solid particulate in chilling ring in the chilled water, and then can stablize the homogeneity of the rate of discharge and the whole outlet annular space water flow of chilling ring chilled water for more time, thereby protect downtake effectively; Thereby prolong the cycle of operation of vapourizing furnace effectively, suppressed the water phenomenon of shock chamber's synthetic gas simultaneously;
(3) remove upcast, further suppressed the water phenomenon of shock chamber's synthetic gas.
Fig. 3 to Fig. 5 shows the schematic structure according to the air-flow vapourizing furnace of the utility model second embodiment.Extremely shown in Figure 5 like Fig. 3; Be with the first embodiment difference; On the liquid level of shock chamber, be provided with water spray endless tube 114; Water spray endless tube 114 links to each other with chilled water pipeline 13, and the chilled water endless tube 114 of get into spraying water is sprayed water through water jet 114a down, can further remove after the water-bath residual part coal ash in the synthetic gas.
Like this; Can further carry out humidification dedusting ash disposal cooling to synthetic gas; Thereby avoided synthetic gas to carry too much coal ash secretly and got into washing tower; Promptly alleviated the load of washing tower, the fine solid particle content in the washing tower water-bath is reduced greatly, the fine solid particle content of supplying with like this in the chilled water of chilling ring also can reduce; Also just alleviated the alluvial of these fine particles in chilling ring; Thereby can delay the deposition alluvial of small solid particulate in chilling ring in the chilled water, and then can stablize the homogeneity of the rate of discharge and the whole outlet annular space water flow of chilling ring chilled water for more time, thereby prolong the cycle of operation of vapourizing furnace effectively; Bigger owing to synthetic gas temperature fall simultaneously, thus its saturated vapor pressure and thermal load reduced.
Water spray endless tube 114 can be installed in shock chamber's inner chamber through bracing frame 114b.
In addition, on water spray endless tube 114, be provided with 2～4 layers staggered ring baffle 115/116, ring baffle 115/116 is fixedly connected with sending down abnormally ascending tube 111 outer walls, shock chamber's 10 inwalls respectively.
Through the ring baffle 115/116 that staggered floor is set, block the liquid foam that synthetic gas is carried secretly, and then suppressed the water phenomenon of shock chamber's synthetic gas effectively.
The advantage of present embodiment is following:
(1) sending down abnormally ascending tube and the air-distributing tube concentric co-axial part tube-in-tube structure that links to each other up and down; And two zig-zag designs; During vapourizing furnace superelevation load; Partial synthesis gas leaves water-bath after also can passing the air-distributing tube zig-zag lower edge that can suppress to produce the ultra-large type bubble, and the shock chamber's liquid fluctuating and the fluctuation that help avoiding super large bubble bubbling to produce cause liquid level warning to cause vapourizing furnace to jump car;
(2) the air-distributing tube top unique design of gas net, water spray endless tube and staggered floor baffle plate of loosing has improved the water-bath humidification dedusting ash disposal cooling-down effect of synthetic gas greatly, can further remove after the water-bath residual part coal ash in the synthetic gas.Thereby avoided synthetic gas to carry too much coal ash secretly and got into washing tower; Thereby can delay the deposition alluvial of small solid particulate in chilling ring in the chilled water; And then can stablize the homogeneity of the rate of discharge and the whole outlet annular space water flow of chilling ring chilled water for more time; Thereby protected downtake effectively, thereby prolonged the cycle of operation of vapourizing furnace effectively, suppressed the water phenomenon of shock chamber's synthetic gas simultaneously.
(3) remove upcast, further suppressed the water phenomenon of shock chamber's synthetic gas.
It is pointed out that in other embodiments the ring baffle 115/116 of above-mentioned staggered floor also can be bonded to separately in the shock chamber of first embodiment, is arranged in the top of liquid level.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (12)
1. a vapourizing furnace shock chamber comprises downtake, it is characterized in that,
Said downtake (11) comprises sending down abnormally ascending tube (111) and air-distributing tube (112); Wherein, The lower end of said sending down abnormally ascending tube (111) is stretched in the said air-distributing tube (112); Be provided with the gas net (113) that looses in the annular space between said air-distributing tube (112) and the sending down abnormally ascending tube (111), the lower edge of said sending down abnormally ascending tube (111) is lower than the plane at said diffusing gas net (113) place, and the plane at said diffusing gas net (113) place is lower than shock chamber's liquid level.
2. vapourizing furnace according to claim 1 shock chamber is characterized in that, the lower edge of said sending down abnormally ascending tube (111) is than the low 500～1000mm in the plane at said diffusing gas net (113) place.
3. vapourizing furnace according to claim 1 shock chamber is characterized in that, the plane at said diffusing gas net (113) place is than the low 1500～4000mm of shock chamber liquid level.
4. vapourizing furnace according to claim 1 shock chamber is characterized in that, said sending down abnormally ascending tube (111) lower edge is a zig-zag.
5. vapourizing furnace according to claim 1 shock chamber is characterized in that, the lower edge of said air-distributing tube (112) is a zig-zag.
6. vapourizing furnace according to claim 1 shock chamber is characterized in that, said diffusing gas net (113) is arranged on the top of said air-distributing tube (112).
7. vapourizing furnace according to claim 1 shock chamber is characterized in that, the network interface cross section of said diffusing gas net (113) is Polygons or circle, and each network interface sectional area is 2.25～25cm2.
8. vapourizing furnace according to claim 1 shock chamber is characterized in that, said diffusing gas net (113) is staggered being welded of reinforcing bar of 0.5～1.2cm by diameter.
9. vapourizing furnace according to claim 1 shock chamber is characterized in that, said sending down abnormally ascending tube (112) is fixedly connected with shock chamber's inwall through support (14) with air-distributing tube (113).
10. vapourizing furnace according to claim 1 shock chamber; It is characterized in that; Also be included in the water spray endless tube (114) that liquid level top in shock chamber is provided with, said water spray endless tube (114) has a plurality of water sprays (114a) that the periphery that is looped around said sending down abnormally ascending tube (111) is sprayed water down.
11. vapourizing furnace according to claim 1 shock chamber is characterized in that, the top of said shock chamber liquid level is provided with a plurality of ring baffles (115/116), and said a plurality of ring baffles (115/116) are along the short transverse staggered arrangement of shock chamber.
12. a vapourizing furnace comprises combustion chamber (20) and is positioned at the shock chamber (10) of combustion chamber (20) below, it is characterized in that said shock chamber (10) are according to each described vapourizing furnace shock chamber in the claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220182302 CN202509053U (en) | 2012-04-25 | 2012-04-25 | Gasification furnace and shock cooling chamber thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220182302 CN202509053U (en) | 2012-04-25 | 2012-04-25 | Gasification furnace and shock cooling chamber thereof |
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| Publication Number | Publication Date |
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| CN202509053U true CN202509053U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220182302 Withdrawn - After Issue CN202509053U (en) | 2012-04-25 | 2012-04-25 | Gasification furnace and shock cooling chamber thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN202509053U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634378A (en) * | 2012-04-25 | 2012-08-15 | 神华集团有限责任公司 | Gasification furnace and chilling chamber thereof |
| CN102923659A (en) * | 2012-11-16 | 2013-02-13 | 华东理工大学 | Chilling-type method for producing synthesis gas through oxidation of non-catalytic part of gaseous or liquid hydrocarbon |
| CN104017605A (en) * | 2014-06-24 | 2014-09-03 | 中国神华能源股份有限公司 | Coal gasification furnace and coal water slurry gasification treatment device with same |
-
2012
- 2012-04-25 CN CN 201220182302 patent/CN202509053U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634378A (en) * | 2012-04-25 | 2012-08-15 | 神华集团有限责任公司 | Gasification furnace and chilling chamber thereof |
| CN102634378B (en) * | 2012-04-25 | 2014-12-24 | 神华集团有限责任公司 | Gasification furnace and chilling chamber thereof |
| CN102923659A (en) * | 2012-11-16 | 2013-02-13 | 华东理工大学 | Chilling-type method for producing synthesis gas through oxidation of non-catalytic part of gaseous or liquid hydrocarbon |
| CN102923659B (en) * | 2012-11-16 | 2015-02-25 | 华东理工大学 | Chilling-type method for producing synthesis gas through oxidation of non-catalytic part of gaseous or liquid hydrocarbon |
| CN104017605A (en) * | 2014-06-24 | 2014-09-03 | 中国神华能源股份有限公司 | Coal gasification furnace and coal water slurry gasification treatment device with same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20141224 |
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| RGAV | Abandon patent right to avoid regrant |