CN111171878B - Pulverized coal gasification production method, pulverized coal gasification process production line and burner thereof - Google Patents
Pulverized coal gasification production method, pulverized coal gasification process production line and burner thereof Download PDFInfo
- Publication number
- CN111171878B CN111171878B CN202010116916.9A CN202010116916A CN111171878B CN 111171878 B CN111171878 B CN 111171878B CN 202010116916 A CN202010116916 A CN 202010116916A CN 111171878 B CN111171878 B CN 111171878B
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- CN
- China
- Prior art keywords
- pulverized coal
- coal gasification
- gasification process
- channel
- burner
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- 239000003245 coal Substances 0.000 title claims abstract description 106
- 238000002309 gasification Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 63
- 239000001301 oxygen Substances 0.000 claims abstract description 32
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002817 coal dust Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 48
- 239000007924 injection Substances 0.000 claims description 48
- 239000000498 cooling water Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 239000002826 coolant Substances 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 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
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
-
- 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
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a pulverized coal gasification process burner, which comprises a burner body with an inlet end and an ejection end; the coal dust channel and the oxygen channel of the burner body extend in the same direction between the inlet end and the spraying end and are sleeved inside and outside, and the periphery of the oxygen channel is wound with a cooling pipe; the plurality of jet holes at the tail end of the cooling pipe are arranged close to the jet ends, and all jet holes are distributed in a rotating mode by taking the axis of the coal dust channel as the center and incline towards the coal dust channel. The invention discloses a pulverized coal gasification process production line, which comprises the pulverized coal gasification process burner. The invention also discloses a pulverized coal gasification production method. The pulverized coal gasification process burner utilizes medium water in the cooling pipe as a cooling working medium and also as a process material to form water vapor after gasification, so that the multi-tube structure of the existing burner is simplified, and the processing difficulty is reduced; the steam is sprayed out from the spray hole and is sprayed in a rotary way by taking the axial direction of the coal powder channel as the center, thereby being beneficial to the cyclone dispersion of the coal powder.
Description
Technical Field
The invention relates to the field of coal gasification, in particular to a pulverized coal gasification process burner. The invention also relates to a pulverized coal gasification process production line, which comprises the pulverized coal gasification process burner. Also relates to a pulverized coal gasification process production method.
Background
The coal gasification process burner is divided into a coal water slurry process burner and a pulverized coal process burner according to different raw material states, wherein the pulverized coal process burner is represented by shell, GSP and a pulverized coal nozzle of a space furnace. Because the various pulverized coal process burners are complex in structure and high in processing difficulty, for example, the temperature difference between the inside and the outside of a cooling jacket adopted by a shell is large and frequently alternated, thermal stress fatigue is increased, cracks are easy to occur, the GSP and the pulverized coal nozzles of the space furnace are complex in structure, the processing difficulty is high, and the using effect of the pulverized coal process burners is difficult to guarantee and maintain.
In summary, how to ensure the cooling effect and simplify the burner structure is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a pulverized coal gasification process burner which is simple in structure, convenient to process and maintain, and good in cooling effect and pulverized coal dispersion effect. Another object of the present invention is to provide a pulverized coal gasification process line including the above pulverized coal gasification process burner. Another object of the invention is to provide a method for producing pulverized coal gasification process.
In order to achieve the above object, the present invention provides a pulverized coal gasification process burner, comprising a burner body having an inlet end and an outlet end; the coal dust channel and the oxygen channel of the burner body extend in the same direction between the inlet end and the spraying end and are sleeved inside and outside, and the periphery of the oxygen channel is wound with a cooling pipe; the plurality of injection holes at the tail end of the cooling pipe are arranged close to the injection end, and all the injection holes are distributed in a rotating way by taking the axis of the coal dust channel as the center and incline towards the coal dust channel.
Preferably, the cooling tube comprises an air injection collar circumferentially arranged along the plane of the injection end; the tail end of the air injection ring pipe is provided with a plurality of injection holes.
Preferably, the cooling tube further comprises a water cooling tube spirally wound around the outer periphery of the oxygen passage; the air injection ring pipe is connected to the tail end of the water cooling pipe.
Preferably, the cross section of the jet loop pipe is provided with semicircular holes, and all the jet holes are arranged on the straight bottom surface of the jet loop pipe.
Preferably, all the injection holes are disposed at equal intervals.
Preferably, an angle between an axis of any one of the injection holes and an axis of the pulverized coal channel is not more than 20 °.
Preferably, the diameter of any one of the injection holes is set to 2 to 5mm.
The invention also provides a pulverized coal gasification process production line, which comprises a gasification furnace and the pulverized coal gasification process burner; the spraying end of the pulverized coal gasification process burner is arranged in the gasification furnace.
Preferably, the cooling pipe is connected to a steam device for supplying steam when the furnace temperature in the gasification furnace is lower than a preset temperature, and is connected to a cooling water device for supplying cooling water when the furnace temperature in the gasification furnace is higher than or equal to the preset temperature.
The invention also provides a pulverized coal gasification production method, which comprises the following steps:
detecting the furnace temperature in the gasification furnace;
And steam and cooling water are sequentially introduced into a cooling pipe connected with a pulverized coal gasification process burner of the gasification furnace according to the furnace temperature.
Compared with the background art, the pulverized coal gasification process burner provided by the invention comprises a burner body with an inlet end and an ejection end. The jet end of the burner body is arranged in the gasification furnace to play a role in feeding materials.
The burner body is internally provided with a coal powder channel and an oxygen channel, the coal powder channel and the oxygen channel extend in the same direction between the inlet end and the ejection end and are sleeved inside and outside, and coal powder enters from the coal powder channel at one side of the inlet end and is ejected from the coal powder channel at one side of the ejection end; oxygen enters from the oxygen passage on the inlet side and is ejected from the oxygen passage on the ejection side.
The periphery of the oxygen channel is wound with a cooling pipe for cooling the temperature of the burner body, so that the influence on the normal working state of the burner body due to the overheat of the furnace temperature of the gasification furnace is avoided. The cooling tube end is close to the blowout end and is provided with a plurality of jet holes, all jet holes are distributed in a rotating mode by taking the axis of the coal powder channel as the center and are inclined towards the coal powder channel, the medium entering the cooling tube is used as cooling working medium when flowing along the cooling tube, the effect of reducing the temperature of the nozzle body is achieved, after the jet holes are jetted out in the form of water vapor, the jet holes are used as process materials to participate in gasification of the coal powder, and on the other hand, the jet holes are rotated around and towards the axis of the coal powder channel, so that the cyclone dispersion effect of the coal powder is improved.
In summary, the pulverized coal gasification process burner uses the cooling pipe as a common channel of the cooling medium and the water vapor, so that the burner structure is simplified, the jacket arrangement in the prior art is avoided, and the thermal stress fatigue of the jacket is avoided; all jet holes at the tail end of the cooling pipe encircle and rotate towards the axis of the coal powder channel, so that the swirling dispersion effect of the coal powder is improved, the structure of the burner is further reduced, and the processing difficulty is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a pulverized coal gasification process burner according to an embodiment of the present invention;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic flow chart of a pulverized coal gasification production method according to an embodiment of the invention.
Wherein, 1-coal dust channel, 2-oxygen channel, 3-cooling tube, 31-jet hole, 32-jet loop and 33-water cooling tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a pulverized coal gasification process burner according to an embodiment of the present invention; FIG. 2 is a bottom view of FIG. 1; FIG. 3 is an enlarged view of a portion of FIG. 1 at A; FIG. 4 is a schematic flow chart of a pulverized coal gasification production method according to an embodiment of the invention.
The invention provides a pulverized coal gasification process burner which comprises a burner body with an inlet end and an ejection end. The burner body is used for being arranged in the gasifier, and the inlet end of the burner body is connected with process material supply equipment such as pulverized coal, oxygen and the like and is used for providing pulverized coal, oxygen and water vapor for the gasifier in operation.
The coal dust channel 1 and the oxygen channel 2 are arranged between the inlet end and the ejection end, the coal dust channel 1 and the oxygen channel 2 extend in the same direction and are sleeved inside and outside, that is, the oxygen channel 2 is sleeved on the periphery of the coal dust channel 1. The pulverized coal circulates from the pulverized coal channel 1, and oxygen circulates from the gap between the outer wall of the pulverized coal channel 1 and the inner wall of the oxygen channel 2. In the working state, the pulverized coal gasification process burner in the gasification furnace is influenced by the environmental temperature, the temperature is higher, and the normal use of the pulverized coal gasification process burner is influenced, so that the cooling pipe 3 is wound on the periphery of the oxygen channel 2, and the medium in the cooling pipe 3 is used for reducing the temperature of the oxygen channel 2 and the pulverized coal channel 1, so that the cooling effect is achieved.
The invention is provided with a plurality of injection holes 31 at the tail end of a cooling pipe 3, all injection holes 31 are arranged close to the injection end, all injection holes 31 are rotationally distributed by taking the axis of a coal dust channel 1 as the center, and any injection hole 31 inclines towards the coal dust channel 1. Wherein, the axial rotation of all injection holes 31 along the pulverized coal channel 1 can be understood with reference to fig. 2, and all injection holes 31 are distributed in the form of clockwise rotating vanes.
The medium in the cooling pipe 3 is used as cooling medium when flowing along the cooling pipe 3 and is used for reducing the temperature of the oxygen channel 2 and the coal dust channel 1; after being sprayed out from the spray hole 31 in the form of steam, the steam is axially and rotationally sprayed along the axis of the pulverized coal channel 1 to drive the pulverized coal to be swirl-dispersed, so that the steam is simply used as a process material to participate in the pulverized coal gasification process, and the swirl-dispersion effect of the pulverized coal can be improved.
The pulverized coal gasification process burner provided by the invention is further described below with reference to the accompanying drawings and the embodiments.
Because the pulverized coal gasification process burner provided by the invention gasifies the cooling medium and is used as the process material, and the cyclone dispersion effect of the pulverized coal is improved through the movement of the process material, on the basis of the embodiment, the cooling pipe 3 comprises the jet loop 32 which is circumferentially arranged along the plane of the jet end; the end of the air injection ring pipe 32 is provided with a plurality of injection holes 31, all injection holes 31 inject water vapor from the same plane to the outside of the nozzle body, a plurality of water vapor formed by all injection holes 31 extends outwards in a rotating way around the coal dust channel 1, and taking fig. 1 as an example, coal dust flows along the coal dust channel 1 from top to bottom, and all injection holes 31 rotate around the axial direction of the coal dust channel 1 and spirally flow downwards. Since any one of the injection holes 31 is inclined toward the axis of the pulverized coal channel 1, a plurality of water vapor spirals downward, and eventually gradually meet at a point on the axis of the pulverized coal channel 1.
Further, the cooling tube 3 further includes a water cooling tube 33 spirally wound around the outer periphery of the oxygen passage 2; the air injection loop 32 is connected to the end of a water cooling pipe 33.
In the above embodiment, in order to increase the contact surface of the cooling tube 3 with the oxygen passage 2, the cooling tube 3 further includes the water cooling tube 33, and the water cooling tube 33 is spirally wound around the outer periphery of the oxygen passage 2.
Further, the water cooling pipes 33 between two adjacent circles are attached, so that the water cooling pipes 33 are tightly wrapped on the periphery of the oxygen channel 2, and the cooling effect is improved.
In the embodiment provided by the invention, the cross section of the air injection ring pipe 32 is provided as a semicircular hole, as shown in fig. 1, the straight bottom surface of the air injection ring pipe 32 is arranged below the nozzle body in a direction away from the inlet end, and the curved surface of the air injection ring pipe 32 is arranged above the straight bottom surface in a direction towards the inlet end.
In order to simplify the arrangement of the injection holes 31 and the control of the injection direction, all the injection holes 31 are arranged on the straight bottom surface of the injection collar 32.
Preferably, all the injection holes 31 are arranged at equal intervals, and a plurality of water vapor ejected from the injection holes 31 uniformly surrounds and meets the pulverized coal airflow ejected from the pulverized coal channel 1.
In order to prevent the water vapor sprayed from the spray holes 31 from causing the ignition difficulty of the gasifier, the pulverized coal gasification process burner adopted by the invention makes the included angle between the axis of any spray hole 31 and the axis of the pulverized coal channel 1 not more than 20 degrees. Taking fig. 3 as an example, the axis of the injection hole 31, i.e., the central axis of the injection hole 31, and the axis of the pulverized coal channel 1, i.e., the vertical direction of fig. 3.
The diameter of any one of the injection holes 31 of the pulverized coal gasification process burner employed in the present invention may be set to any one value among 2 to 5mm, and the diameters of all the injection holes 31 may be set to the same diameter.
The invention also provides a pulverized coal gasification process production line, which comprises the gasification furnace and the pulverized coal gasification process burner.
The jet end of the pulverized coal gasification process burner is arranged in the gasification furnace, and pulverized coal introduced by the pulverized coal channel 1, oxygen introduced by the oxygen channel 2 and water vapor formed after gasification of the cooling medium introduced by the cooling pipe 3 all enter the gasification furnace and are used as process materials of the pulverized coal gasification process to participate in production.
Wherein, the cooling medium introduced by the cooling pipe 3 can be used for cooling the oxygen channel 2 and the coal dust channel 1 when circulating along the cooling pipe 3, thereby prolonging the service life of the nozzle body.
Further, considering that the gasifier and the nozzle body positioned in the gasifier are insufficient to gasify the cooling medium in the cooling pipe 3 when the ground temperature of the gasifier is low, conversely, the temperature of the nozzle body does not reach the temperature required to be cooled, at the moment, steam is directly introduced into the cooling pipe 3, so that the normal operation of the pulverized coal gasification process is ensured, once the temperature of the gasifier and the temperature of the nozzle body positioned in the gasifier are raised to the preset temperature, generally 500-800 ℃, the steam in the cooling pipe 3 is replaced by cooling water, and in short, when the temperature of the gasifier is lower than the preset temperature, the cooling pipe 3 is connected with steam equipment for providing steam; when the furnace temperature in the gasification furnace is higher than or equal to the preset temperature, the cooling pipe 3 is connected with a cooling water device for supplying cooling water. This operation can be achieved by means of a PLC and a valve.
The invention also provides a pulverized coal gasification production method, which comprises the following steps:
s1: detecting the furnace temperature in the gasification furnace;
s2: steam and cooling water are sequentially introduced into a cooling pipe 3 connected with a pulverized coal gasification process burner of the gasification furnace according to the furnace temperature.
The pulverized coal gasification production method can be applied to the pulverized coal gasification process production line, and the state of the medium in the cooling pipe 3 is changed according to the furnace temperature of the gasification furnace, so that cooling water and steam share the same pipe cavity, and the equipment structure is simplified.
For the second step, the method specifically comprises the following steps: when the furnace temperature is not more than 800 ℃, introducing steam into the cooling pipe 3; when the furnace temperature rises to 800 ℃ or higher, cooling water is introduced into the cooling pipe 3. In the latter case, the cooling water is gasified before reaching the injection hole 31 due to the higher furnace temperature. Wherein, the steam can be set to 3.8MPa;800 ℃ is only one specific data given by the invention, and in actual production, other values between 500 ℃ and 800 ℃ can be set according to factors such as the size of the gasification furnace, specific process and the like.
The pulverized coal gasification production method, the pulverized coal gasification process production line and the burner thereof provided by the invention are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (9)
1. A pulverized coal gasification process burner is characterized by comprising a burner body with an inlet end and an ejection end; the coal dust channel (1) and the oxygen channel (2) of the burner body extend in the same direction between the inlet end and the spraying end and are sleeved inside and outside, and the cooling pipe (3) is wound on the periphery of the oxygen channel (2); a plurality of injection holes (31) at the tail end of the cooling pipe (3) are arranged close to the injection end, and all the injection holes (31) are rotationally distributed by taking the axis of the coal dust channel (1) as the center and are inclined towards the coal dust channel (1);
an included angle between the axis of any one of the injection holes (31) and the axis of the pulverized coal channel (1) is not more than 20 degrees.
2. The pulverized coal gasification process burner according to claim 1, characterized in that the cooling pipe (3) comprises a jet loop (32) arranged circumferentially along the plane of the jet end; the tail end of the air injection ring pipe (32) is provided with a plurality of injection holes (31).
3. The pulverized coal gasification process burner according to claim 2, characterized in that the cooling pipe (3) further comprises a water cooling pipe (33) spirally wound around the outer periphery of the oxygen channel (2); the air injection loop (32) is connected to the end of the water cooling pipe (33).
4. The pulverized coal gasification process burner according to claim 2, characterized in that the cross section of the jet loop (32) is arranged as a semicircular hole and all the jet holes (31) are arranged on a straight bottom surface of the jet loop (32).
5. A pulverized coal gasification process burner according to any one of claims 1 to 3, wherein all the injection holes (31) are arranged at equal intervals.
6. A pulverized coal gasification process burner according to any one of claims 1 to 3, wherein the diameter of any one of the injection holes (31) is set to 2-5 mm.
7. A pulverized coal gasification process line comprising a gasification furnace and a pulverized coal gasification process burner as claimed in any one of claims 1 to 6; the spraying end of the pulverized coal gasification process burner is arranged in the gasification furnace.
8. The pulverized coal gasification process line according to claim 7, characterized in that the cooling pipe (3) is connected to a steam device for supplying steam when the furnace temperature in the gasification furnace is lower than a preset temperature, and to a cooling water device for supplying cooling water when the furnace temperature in the gasification furnace is higher than or equal to the preset temperature.
9. A pulverized coal gasification production method, characterized by being applied to the pulverized coal gasification process line as claimed in claim 7 or 8, comprising:
detecting the furnace temperature in the gasification furnace;
And (3) sequentially introducing steam and cooling water into a cooling pipe (3) connected with a pulverized coal gasification process burner of the gasification furnace according to the furnace temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010116916.9A CN111171878B (en) | 2020-02-25 | 2020-02-25 | Pulverized coal gasification production method, pulverized coal gasification process production line and burner thereof |
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| CN202010116916.9A CN111171878B (en) | 2020-02-25 | 2020-02-25 | Pulverized coal gasification production method, pulverized coal gasification process production line and burner thereof |
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| CN111171878B true CN111171878B (en) | 2024-10-01 |
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| CN115253734A (en) * | 2021-04-30 | 2022-11-01 | 国家能源投资集团有限责任公司 | Gas-solid mixer and coal gasification equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211595545U (en) * | 2020-02-25 | 2020-09-29 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Pulverized coal gasification process production line and pulverized coal gasification process burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08283750A (en) * | 1995-04-06 | 1996-10-29 | Nippon Steel Corp | Use of coal gasification burner for coal gasification furnace and coal gasification furnace and burner |
| US20040261316A1 (en) * | 2002-11-12 | 2004-12-30 | Weaver Lloyd E | Pressurized coal gasification fuel distribution, feed, and burner system |
| US9079199B2 (en) * | 2010-06-14 | 2015-07-14 | General Electric Company | System for increasing the life of fuel injectors |
| US8795602B2 (en) * | 2011-09-29 | 2014-08-05 | General Electric Company | Multi-stream feed injector |
| DE102012202101B4 (en) * | 2012-02-13 | 2015-04-02 | Technische Universität Bergakademie Freiberg | High thermal load nozzle |
| KR101881959B1 (en) * | 2016-12-22 | 2018-07-26 | 두산중공업 주식회사 | Down shot multi-stage gasifier |
| CN109575995A (en) * | 2017-09-29 | 2019-04-05 | 天津征鑫热能设备制造有限公司 | A kind of preparation method of coal gasifier burner |
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| CN211595545U (en) * | 2020-02-25 | 2020-09-29 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Pulverized coal gasification process production line and pulverized coal gasification process burner |
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Country or region after: China Address after: 3rd Floor, Building 31, Shandong Energy Science and Technology Innovation Park, Jingshidong Road, Shengjing Street, Zhangqiu District, Jinan City, Shandong Province, 250000 Applicant after: Shandong Energy Group Coal Gasification New Materials Technology Co.,Ltd. Applicant after: SHANDONG ENERGY GROUP Co.,Ltd. Applicant after: SHANXI RESEARCH INSTITUTE FOR CLEAN ENERGY, TSINGHUA University Address before: Floor 17, block a, building 1, Jinan Yaogu, north section of Gangxing Third Road, Jinan high tech Industrial Development Zone, Shandong Province Applicant before: YANKUANG COAL WATER SLURRY GASIFICATION AND COAL CHEMICAL INDUSTRY NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Country or region before: China Applicant before: YANKUANG GROUP Co.,Ltd. Applicant before: SHANXI RESEARCH INSTITUTE FOR CLEAN ENERGY, TSINGHUA University |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |