JP2019515996A5 - - Google Patents
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- JP2019515996A5 JP2019515996A5 JP2018556866A JP2018556866A JP2019515996A5 JP 2019515996 A5 JP2019515996 A5 JP 2019515996A5 JP 2018556866 A JP2018556866 A JP 2018556866A JP 2018556866 A JP2018556866 A JP 2018556866A JP 2019515996 A5 JP2019515996 A5 JP 2019515996A5
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- gasification furnace
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- circulating fluidized
- pyrolysis
- fluidized bed
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- 238000002309 gasification Methods 0.000 claims description 170
- 238000000197 pyrolysis Methods 0.000 claims description 96
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 95
- 239000003245 coal Substances 0.000 claims description 93
- 239000003034 coal gas Substances 0.000 claims description 70
- 239000000428 dust Substances 0.000 claims description 50
- 238000002156 mixing Methods 0.000 claims description 37
- 239000000571 coke Substances 0.000 claims description 36
- 239000011265 semifinished product Substances 0.000 claims description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 23
- 238000004642 transportation engineering Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 18
- 239000003610 charcoal Substances 0.000 claims description 17
- 238000001556 precipitation Methods 0.000 claims description 17
- 229920002456 HOTAIR Polymers 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 13
- 238000005276 aerator Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 6
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- 229940108066 Coal Tar Drugs 0.000 description 8
- 239000011280 coal tar Substances 0.000 description 8
- 239000010903 husk Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
本発明は、石炭でガスを形成する多重ガス化装置に関し、具体的に、循環流動層と熱分解層により熱分解ガス化を順にするガス化炉に関するものであり、石炭のガス化に用いられ、石炭ガス化装置の分野に属する。 The present invention relates to a multiple gasifier for forming gas with coal, and more specifically, to a gasification furnace for sequentially performing pyrolysis gasification by a circulating fluidized bed and a pyrolysis bed, which is used for gasification of coal. , Belongs to the field of coal gasifier.
工業の経済の迅速な発展に伴い、石炭は工業の生産の過程において熱を獲得する原料としてなければならない原料である。しかしながら、石炭を直接に燃焼させることにより環境の汚染が発生するので、最近、政府は石炭を直接に燃やすことを禁止する色々な規定を発布した。石炭を石炭ガスに変換させ、きれいであり汚染がない石炭ガスを燃焼させることにより熱を獲得するために、人々は石炭を石炭ガスに変換させる色々なガス化炉を設計した。例えば、石炭ガスを生成するため固定床ガス化炉、循環流動層ガス化炉などのガス化炉を発明したことにより、石炭の燃焼による環境の汚染を低減することができる。従来の色々なガス化炉を研究してみると、各ガス化炉は色々な欠点を有している。例えば、固定床ガス化炉は、石炭の変換率と熱の効率が高い利点を有しているが、石炭ガス中に大量のコールタール等の汚染物が含まれている欠点を有している。循環流動層ガス化炉はコールタール等の汚染物が含まれていない石炭ガスを製造することができるが、石炭の熱使用率が低く、炭殻に大量のコークス半製品が含まれているので、コークス半製品が含まれている炭殻を所定の場所に運んで再び燃焼させる必要がある。例えば発電所に運んで発電の原料として用いることができる。それにより石炭の使用率が低下し、運輸、人工などによるコストが増加する。したがって、人々は、石炭を石炭ガスに変換させる効率を向上させるとともにきれいな石炭ガスを獲得することができる新しい石炭ガス生成装置を提供することを望んでいる。 With the rapid development of industrial economy, coal is a raw material that must be a raw material for obtaining heat in the process of industrial production. However, since the direct burning of coal causes environmental pollution, the government recently issued various regulations prohibiting the direct burning of coal. In order to convert coal into coal gas and to obtain heat by burning clean, unpolluted coal gas, people have designed various gasifiers that convert coal into coal gas. For example, by inventing a gasifier such as a fixed bed gasifier or a circulating fluidized bed gasifier for producing coal gas, environmental pollution due to combustion of coal can be reduced. When researching various conventional gasifiers, each gasifier has various drawbacks. For example, a fixed bed gasifier has an advantage of high conversion efficiency and heat efficiency of coal, but has a drawback of containing a large amount of pollutants such as coal tar in the coal gas. .. The circulating fluidized bed gasifier can produce coal gas that does not contain pollutants such as coal tar, but since the heat utilization rate of coal is low and the coal shell contains a large amount of semi-coke products, , It is necessary to carry the charcoal shell containing the semi-finished coke to a predetermined place and burn it again. For example, it can be transported to a power plant and used as a raw material for power generation. This will reduce the usage rate of coal and increase the cost of transportation and man-made. Therefore, people want to provide a new coal gas generator that can improve the efficiency of converting coal to coal gas and obtain clean coal gas.
本発明の目的は、循環流動層と熱分解層の組合せによりガス化をする方法を提供し、循環流動層と熱分解層の組合せによって燃焼ガス化をすることにより、石炭の変換率を向上させ、石炭ガス中の主要な汚染物を除去することにある。 An object of the present invention is to provide a method for gasification by a combination of a circulating fluidized bed and a pyrolysis bed, and by performing combustion gasification by a combination of a circulating fluidized bed and a pyrolysis bed, improving the conversion rate of coal. , To remove major pollutants in coal gas.
本発明の他の目的は、循環流動層と熱分解層の組合せによりガス化をする装置を提供し、石炭に対して循環流動ガス化と熱分解ガス化をすることにより、きれいであり変換率が高い石炭ガスを獲得することができる装置を提供することにある。 Another object of the present invention is to provide an apparatus for gasification by a combination of a circulating fluidized bed and a pyrolysis bed, which is clean and has a conversion rate by performing circulating fluidized gasification and pyrolysis gasification on coal. It is to provide a device that can obtain high coal gas.
前記目的を実現するため、本発明の実施例において、循環流動層と熱分解層の組合せによりガス化をする装置を提供する。その装置は、循環流動層ガス化炉、サイクロン分離器、沈殿室、輸送装置、高温空気パイプ、蒸気パイプ、酸素パイプ、粉塵パイプ、炭殻収納部、通気体を含む。石炭は石炭輸送パイプにより前記循環流動層ガス化炉に送入され、前記循環流動層ガス化炉の上部とサイクロン分離器の上部との間は石炭ガスパイプにより連結され、前記サイクロン分離器の上部と前記沈殿室の上部との間は石炭ガスパイプにより連結される。前記循環流動層ガス化炉の上部はガス化炉キャビティであり、中部には通気器が設けられ、下部は第一混合用気室である。前記サイクロン分離器内の上部には中心円筒部が設けられ、サイクロン分離器の底部は炭殻収納部上に設置され、炭殻収納部とサイクロン分離器の底部との間には水密手段が設けられ、通気体は前記サイクロン分離器の底部に設けられかつ炭殻収納部上に位置し、炭殻収納部と通気体の下部との間には第二混合用気室が設けられ、サイクロン分離器のキャビティの下部と通気体および通気体の下方の第二混合用気室とにより熱分解層ガス化炉が構成される。前記沈殿室の上部には傾斜の案内板が設けられ、底部には輸送装置が設けられ、前記輸送装置は粉塵パイプに連結される。前記高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプは循環流動層ガス化炉の下部の第一混合用気室に連結され、前記高温空気パイプ、蒸気パイプおよび酸素パイプは前記通気体の下部に設けられる第二混合用気室に連結される。 In order to achieve the above object, in an embodiment of the present invention, an apparatus for gasifying by a combination of a circulating fluidized bed and a pyrolysis bed is provided. The equipment includes a circulating fluidized bed gasification furnace, a cyclone separator, a precipitation chamber, a transportation device, a hot air pipe, a steam pipe, an oxygen pipe, a dust pipe, a charcoal shell container, and a vent. Coal is fed into the circulating fluidized bed gasification furnace by a coal transportation pipe, the upper part of the circulating fluidized bed gasification furnace and the upper part of the cyclone separator are connected by a coal gas pipe, and the upper part of the cyclone separator and A coal gas pipe connects the upper part of the precipitation chamber. An upper part of the circulating fluidized bed gasification furnace is a gasification furnace cavity, an aerator is provided in the middle part, and a lower part is a first mixing air chamber. A central cylindrical part is provided in the upper part of the cyclone separator, a bottom part of the cyclone separator is installed on the coal shell storage part, and a watertight means is provided between the coal shell storage part and the bottom part of the cyclone separator. The vent is provided at the bottom of the cyclone separator and is located on the charcoal shell storage, and the second mixing air chamber is provided between the charcoal shell storage and the lower part of the vent, and the cyclone separator is provided. A pyrolysis bed gasification furnace is constituted by the lower part of the cavity of the reactor, the vent and the second mixing air chamber below the vent. An inclined guide plate is provided at the top of the settling chamber, a transportation device is provided at the bottom, and the transportation device is connected to a dust pipe. The hot air pipe, the steam pipe, the oxygen pipe and the dust pipe are connected to the first mixing air chamber at the bottom of the circulating fluidized bed gasification furnace, and the hot air pipe, the steam pipe and the oxygen pipe are at the bottom of the vent. It is connected to the second mixing air chamber provided.
本発明の好適な実施例において、前記傾斜の案内板は沈殿室内に設けられる。 In a preferred embodiment of the present invention, the inclined guide plate is provided in the sedimentation chamber.
本発明の好適な実施例において、前記通気体は円錐形である。 In a preferred embodiment of the invention said vent is conical.
本発明の好適な実施例において、前記サイクロン分離器の中心円筒部の上部と前記沈殿室の上部との間は石炭ガスパイプにより連結される。 In a preferred embodiment of the present invention, a coal gas pipe connects the upper part of the central cylindrical part of the cyclone separator and the upper part of the precipitation chamber.
本発明の他の実施例において、ガス化方法を提供する。その方法は、循環流動層ガス化炉の９００℃〜１２００℃の温度により石炭に対して初期の燃焼流動ガス化をすることにより石炭ガス、石炭含有粉塵およびコークス半製品を形成し、石炭含有粉塵およびコークス半製品は石炭ガスとともにサイクロン分離器に送入されるステップａと、循環流動層ガス化炉内の石炭ガス、石炭含有粉塵およびコークス半製品をサイクロン分離器の上部からサイクロン分離器に送入し、分離されて出るコークス半製品を熱分解層ガス化炉に送入し、熱分解層ガス化炉の底部からガス化剤を送入し、分離されて出るコークス半製品を熱分解層ガス化炉において燃焼することにより熱分解ガス化をさらに行うステップｂと、熱分解層ガス化炉により形成された石炭ガスと、循環流動層ガス化炉により形成された石炭ガスおよび石炭含有粉塵とは、循環流動層ガス化炉の中心円筒部により沈殿室に送入され、炭殻は熱分解層ガス化炉の底部の炭殻収納部から排出されるステップｃと、石炭含有粉塵が沈殿室において沈殿した後、輸送装置と粉塵パイプにより循環流動層ガス化炉の底部の第一混合用気室に送入され、ガス化剤の温度が向上することにより循環流動層ガス化炉が循環ガス化燃焼をするステップｄと、を含む。 In another embodiment of the present invention, a gasification method is provided. The method is to form coal gas, coal-containing dust and coke semi-finished product by performing initial combustion fluidized gasification on coal at a temperature of 900° C. to 1200° C. in a circulating fluidized bed gasifier, and coal-containing dust. And the coke semi-finished product is sent to the cyclone separator together with the coal gas, and the coal gas in the circulating fluidized bed gasification furnace, the coal-containing dust and the coke semi-finished product are sent to the cyclone separator from the upper part of the cyclone separator. The semi-finished coke product that enters and separates is sent to the pyrolysis bed gasification furnace, the gasifying agent is sent from the bottom of the pyrolysis bed gasification furnace, and the semi-finished coke product that separates is pyrolysis bed Step b in which pyrolysis gasification is further performed by burning in a gasification furnace, coal gas formed by a pyrolysis bed gasification furnace, coal gas formed by a circulating fluidized bed gasification furnace, and coal-containing dust Is fed into the settling chamber by the central cylindrical portion of the circulating fluidized bed gasification furnace, and the charcoal shell is discharged from the coal shell storage section at the bottom of the pyrolysis bed gasification furnace. After being settled in the circulating fluidized bed gasification furnace, it is fed into the first mixing air chamber at the bottom of the circulating fluidized bed gasification furnace by the transportation device and the dust pipe, and the circulating fluidized bed gasification furnace raises the circulating gas by increasing the temperature of the gasifying agent. And step d of performing chemical combustion.
本発明の好適な実施例において、前記熱分解層ガス化炉の底部に送入されるガス化剤は空気と水蒸気の混合気体であり、コークス半製品は熱分解層ガス化炉内において燃焼熱分解反応を行う。 In a preferred embodiment of the present invention, the gasifying agent fed to the bottom of the pyrolysis bed gasification furnace is a mixed gas of air and steam, and the coke semi-finished product is the combustion heat in the pyrolysis bed gasification furnace. Carry out decomposition reaction.
本発明の好適な実施例において、前記循環流動層ガス化炉の底部に送入されるガス化剤は、空気、水蒸気および酸素の混合気体であり、石炭は循環流動層ガス化炉内において燃焼熱分解反応を行う。 In a preferred embodiment of the present invention, the gasifying agent fed to the bottom of the circulating fluidized bed gasification furnace is a mixed gas of air, steam and oxygen, and coal is burned in the circulating fluidized bed gasification furnace. Carry out thermal decomposition reaction.
本発明の好適な実施例において、前記熱分解層ガス化炉の底部に送入されるガス化剤は、空気、水蒸気および酸素の混合気体であり、コークス半製品は熱分解層ガス化炉内において燃焼熱分解反応を行う。 In a preferred embodiment of the present invention, the gasifying agent fed to the bottom of the pyrolysis bed gasification furnace is a mixed gas of air, steam and oxygen, and the coke semi-finished product is in the pyrolysis bed gasification furnace. In the combustion pyrolysis reaction.
本発明の他の実施例において、循環流動層と熱分解層の組合せによりガス化をする装置を提供する。その装置は循環流動層ガス化炉と熱分解層ガス化炉を含む。循環流動層ガス化炉は循環流動層ガス化炉に石炭を輸送する石炭輸送パイプを含み、循環流動層ガス化炉の底部にガス化剤が送入され、前記石炭が循環流動層ガス化炉内において燃焼熱分解をすることにより石炭ガス、石炭含有粉塵およびコークス半製品が形成される。熱分解層ガス化炉の上部は石炭ガスパイプにより循環流動層ガス化炉の上部に連結され、循環流動層ガス化炉内において形成される石炭ガス、石炭含有粉塵およびコークス半製品は石炭ガスパイプにより熱分解層ガス化炉に送入され、コークス半製品は熱分解層ガス化炉の底部に落ち、ガス化剤は熱分解層ガス化炉の底部に送入され、コークス半製品は熱分解層ガス化炉内において燃焼することにより熱分解ガス化をして石炭ガスを形成し、熱分解層ガス化炉の上部には石炭ガス出口が形成され、炭殻は熱分解層ガス化炉の底部の炭殻収納部に排出される。 In another embodiment of the present invention, there is provided an apparatus for gasifying by a combination of a circulating fluidized bed and a pyrolysis bed. The equipment includes a circulating fluidized bed gasifier and a pyrolysis bed gasifier. The circulating fluidized bed gasification furnace includes a coal transportation pipe for transporting coal to the circulating fluidized bed gasification furnace, a gasifying agent is fed to the bottom of the circulating fluidized bed gasification furnace, and the coal is recycled into the circulating fluidized bed gasification furnace. Coal gas, coal-containing dust and coke semi-finished products are formed by combustion pyrolysis inside. The upper part of the pyrolysis bed gasification furnace is connected to the upper part of the circulating fluidized bed gasification furnace by a coal gas pipe, and coal gas, coal-containing dust and coke semi-finished products formed in the circulating fluidized bed gasification furnace are heated by a coal gas pipe. It is sent to the cracked bed gasification furnace, the coke semi-finished product falls to the bottom of the pyrolysis bed gasification furnace, the gasification agent is sent to the bottom of the pyrolysis bed gasification furnace, and the coke semi-finished product is the pyrolysis bed gas Combustion in the gasification furnace produces coal gas by pyrolysis gasification, a coal gas outlet is formed at the top of the pyrolysis bed gasification furnace, and the coal shell is at the bottom of the pyrolysis bed gasification furnace. It is discharged to the charcoal shell storage section.
本発明の好適な実施例において、前記循環流動層ガス化炉の上部はガス化炉のキャビティであり、中部には通気器が設けられ、下部は第一混合用気室であり、ガス化剤は第一混合用気室に送入される。熱分解層ガス化炉の炉本体の底部は炭殻収納部上に設置され、炭殻収納部と熱分解層ガス化炉の炉本体の底部との間には水密手段が設けられ、通気体は前記熱分解層ガス化炉の炉本体の底部に設けられかつ炭殻収納部上に位置し、炭殻収納部と通気体の下部との間には第二混合用気室が設けられ、ガス化剤は第二混合用気室に送入される。 In a preferred embodiment of the present invention, the upper part of the circulating fluidized bed gasification furnace is a cavity of the gasification furnace, the middle part is provided with an aerator, the lower part is a first mixing air chamber, Is fed into the first mixing air chamber. The bottom of the furnace body of the pyrolysis bed gasification furnace is installed on the coal shell housing section, and a watertight means is provided between the coal shell housing section and the bottom of the furnace body of the pyrolysis bed gasification furnace, and a ventilation member is provided. Is provided at the bottom of the furnace body of the pyrolysis bed gasification furnace and is located on the charcoal shell storage, and a second mixing air chamber is provided between the carbon shell storage and the lower part of the vent, The gasifying agent is fed into the second mixing air chamber.
本発明の好適な実施例において、上記装置は、沈殿室、輸送装置、高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプを更に含む。前記熱分解層ガス化炉の上部と前記沈殿室の上部との間は石炭ガスパイプにより連結される。前記沈殿室の上部には傾斜の案内板が設けられ、底部には前記輸送装置が設けられ、前記輸送装置は粉塵パイプに連結される。前記高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプは第一混合用気室に連結され、前記高温空気パイプ、蒸気パイプおよび酸素パイプは第二混合用気室に連結される。 In a preferred embodiment of the invention, the device further comprises a precipitation chamber, a transportation device, a hot air pipe, a steam pipe, an oxygen pipe and a dust pipe. An upper part of the pyrolysis bed gasification furnace and an upper part of the precipitation chamber are connected by a coal gas pipe. An inclined guide plate is provided at the top of the settling chamber, the transportation device is provided at the bottom, and the transportation device is connected to the dust pipe. The hot air pipe, the steam pipe, the oxygen pipe and the dust pipe are connected to the first mixing air chamber, and the hot air pipe, the steam pipe and the oxygen pipe are connected to the second mixing air chamber.
本発明の設計の原理は、循環流動層ガス化炉によりガス化を行うときコールタール等の汚染物が形成されない原理と熱分解層ガス化炉のガス化の効率が高い原理とを調整して１個の石炭ガス生成装置を設計することにより、コールタール等の汚染物の形成を防止し、かつ従来の石炭ガス生成装置の高変換率を維持することにある。本発明の効果は、石炭のガス化率が高く、ガス化をする過程においてコールタール等の汚染物が形成されなく、大型、中型、小型の各種のガス化装置に適用され、単位時間内のガス生成量の調節の範囲が大きいことにある。 The principle of design of the present invention is to adjust the principle that pollutants such as coal tar are not formed when gasification is performed by a circulating fluidized bed gasification furnace and the principle of high gasification efficiency of a pyrolysis bed gasification furnace. By designing one coal gas generator, it is to prevent the formation of pollutants such as coal tar and to maintain the high conversion rate of the conventional coal gas generator. The effect of the present invention is high in gasification rate of coal, pollutants such as coal tar are not formed in the process of gasification, and it is applied to various types of large, medium, and small gasifiers. This is because the range of gas production control is large.
本発明の前記目的、特徴および発明の効果をより詳細に理解してもらうため、以下、図面と具体的な実施例により本発明をより詳細に説明する。 The present invention will be described in more detail below with reference to the drawings and specific embodiments in order to understand the above-mentioned objects, features and effects of the present invention in more detail.
図１において、本発明の循環流動層と熱分解層の組合せによりガス化をする装置の第一実施例を公開する。前記装置は、石炭ホッパー１、循環流動層ガス化炉２、サイクロン分離器３、沈殿室４、輸送装置５、高温空気パイプ６、蒸気パイプ７、酸素パイプ８、粉塵パイプ９、炭殻収納部３０２、円錐形通気体３０１を含む。前記石炭ホッパー１と循環流動層ガス化炉２との間は石炭輸送パイプにより連結され、前記循環流動層ガス化炉２の上部とサイクロン分離器３の上部との間は石炭ガスパイプにより連結され、前記サイクロン分離器３の上部と前記沈殿室４の上部との間は石炭ガスパイプにより連結される。図１に示される実施例において、サイクロン分離器３の中心円筒部の上部と前記沈殿室４の上部との間は石炭ガスパイプにより連結される。前記石炭ホッパー１内には石炭Ａが収納され、前記循環流動層ガス化炉２の上部はガス化炉キャビティであり、中部には通気器２０１が設けられ、下部は第一混合用気室２０２である。前記サイクロン分離器３内の上部には中心円筒部が設けられ、底部は炭殻収納部３０２上に設置され、円錐形通気体３０１は前記サイクロン分離器の底部に設けられかつ炭殻収納部３０２上に位置し、炭殻収納部３０２とサイクロン分離器３の底部との間には水密手段が設けられ、炭殻収納部３０２と円錐形通気体３０１の下部との間には第二混合用気室３０３が設けられる。サイクロン分離器３のキャビティの下部と円錐形通気体３０１および円錐形通気体３０１の下方の第二混合用気室３０３とにより熱分解層ガス化炉が構成される。前記円錐形通気体３０１は他の形状、例えば半球形などであることができる。前記沈殿室４の上部には傾斜の案内板４０１が設けられ、底部には輸送装置５が設けられる。前記輸送装置５は粉塵パイプ９に連結され、前記高温空気パイプ６、蒸気パイプ７、酸素パイプ８および粉塵パイプ９は循環流動層ガス化炉２の下部に設けられる第一混合用気室２０２に連結され、前記高温空気パイプ６、蒸気パイプ７および酸素パイプ８は円錐形通気体３０１の下部に設けられる第二混合用気室３０３に連結される。 In FIG. 1, the first embodiment of the apparatus for gasifying by the combination of the circulating fluidized bed and the pyrolysis bed of the present invention is disclosed. The apparatus includes a coal hopper 1, a circulating fluidized bed gasification furnace 2, a cyclone separator 3, a settling chamber 4, a transportation device 5, a high temperature air pipe 6, a steam pipe 7, an oxygen pipe 8, a dust pipe 9, and a coal shell storage unit. 302, including a conical vent 301. The coal hopper 1 and the circulating fluidized bed gasification furnace 2 are connected by a coal transportation pipe, and the upper part of the circulating fluidized bed gasification furnace 2 and the upper part of the cyclone separator 3 are connected by a coal gas pipe, An upper portion of the cyclone separator 3 and an upper portion of the precipitation chamber 4 are connected by a coal gas pipe. In the embodiment shown in FIG. 1, the upper part of the central cylindrical part of the cyclone separator 3 and the upper part of the precipitation chamber 4 are connected by a coal gas pipe. Coal A is stored in the coal hopper 1, the upper part of the circulating fluidized bed gasification furnace 2 is a gasification furnace cavity, the middle part is provided with an aerator 201, and the lower part is a first mixing air chamber 202. Is. A central cylindrical part is provided in an upper part of the cyclone separator 3, a bottom part thereof is installed on a charcoal shell accommodating part 302, and a conical aerator 301 is installed in a bottom part of the cyclone separator and the charcoal hull accommodating part 302. Located above, a watertight means is provided between the charcoal shell storage part 302 and the bottom of the cyclone separator 3, and a second mixture is provided between the charcoal shell storage part 302 and the lower part of the conical aerator 301. An air chamber 303 is provided. The lower part of the cavity of the cyclone separator 3, the conical aerator 301, and the second mixing air chamber 303 below the conical aerator 301 constitute a pyrolysis bed gasification furnace. The conical vent 301 may have other shapes, such as a hemisphere. An inclined guide plate 401 is provided at the top of the settling chamber 4, and a transportation device 5 is provided at the bottom. The transportation device 5 is connected to a dust pipe 9, and the high temperature air pipe 6, the steam pipe 7, the oxygen pipe 8 and the dust pipe 9 are provided in a first mixing air chamber 202 provided under the circulating fluidized bed gasification furnace 2. The hot air pipe 6, the steam pipe 7 and the oxygen pipe 8 are connected to a second mixing air chamber 303 provided in a lower portion of the conical aerator 301.
循環流動層と熱分解層の組合せによりガス化をする装置が運転するとき、石炭Ａを循環流動層ガス化炉２に送入して、９００℃〜１２００℃の温度で初期の燃焼熱分解ガス化を行うことにより石炭ガス、石炭含有粉塵Ｃおよびコークス半製品Ｂを形成し、コークス半製品Ｂおよび石炭含有粉塵Ｃは石炭ガスとともにサイクロン分離器３に送入される。熱分解層ガス化炉の底部からガス化剤を送入し、装置の上部から石炭ガス、石炭含有粉塵Ｃおよびコークス半製品Ｂをサイクロン分離器に送入する場合、コークス半製品Ｂは熱分解層ガス化炉において燃焼熱分解ガス化をさらに行う。熱分解層ガス化炉により形成された石炭ガスと、循環流動層ガス化炉により形成された石炭ガスおよび石炭含有粉塵Ｃとは、サイクロン分離器の中心円筒部により沈殿室４に流入し、炭殻は熱分解層ガス化炉の底部の炭殻収納部３０２に排出される。石炭ガスおよび石炭含有粉塵Ｃが沈殿室４において沈殿した後、石炭含有粉塵Ｃは、輸送装置５と粉塵パイプ９により循環流動層ガス化炉２の底部の第一混合用気室２０２に送入され、循環流動層ガス化炉に送入されるガス化剤と循環燃焼熱分解ガス化を行うことにより循環流動層ガス化炉２内の熱を補充することができる。 When the apparatus for gasifying by the combination of the circulating fluidized bed and the pyrolysis bed is operated, coal A is fed into the circulating fluidized bed gasification furnace 2 and the initial combustion pyrolysis gas at a temperature of 900° C. to 1200° C. The coal gas, the coal-containing dust C and the coke semi-finished product B are formed by performing the liquefaction, and the coke semi-finished product B and the coal-containing dust C are sent to the cyclone separator 3 together with the coal gas. When the gasifying agent is fed from the bottom of the pyrolysis bed gasification furnace and the coal gas, the coal-containing dust C and the coke semi-finished product B are fed into the cyclone separator from the top of the device, the coke semi-finished product B is pyrolyzed. Combustion pyrolysis gasification is further performed in the bed gasification furnace. The coal gas formed by the pyrolysis bed gasification furnace and the coal gas and the coal-containing dust C formed by the circulating fluidized bed gasification furnace flow into the settling chamber 4 by the central cylindrical portion of the cyclone separator, The husk is discharged to the coal husk storage unit 302 at the bottom of the pyrolysis bed gasification furnace. After the coal gas and the coal-containing dust C have settled in the settling chamber 4, the coal-containing dust C is fed into the first mixing air chamber 202 at the bottom of the circulating fluidized bed gasification furnace 2 by the transportation device 5 and the dust pipe 9. The heat in the circulating fluidized bed gasification furnace 2 can be replenished by performing the cyclic combustion pyrolysis gasification with the gasifying agent that is sent to the circulating fluidized bed gasification furnace.
図２において、本発明の循環流動層と熱分解層の組合せによりガス化をする装置の第二実施例を公開する。図２に示すとおり、前記装置は循環流動層ガス化炉２と熱分解層ガス化炉１１を含む。前記循環流動層ガス化炉２は、循環流動層ガス化炉に石炭を輸送する石炭輸送パイプ１０１と、循環流動層ガス化炉の底部にガス化剤を輸送するガス化剤通路１０２を含む。前記石炭が循環流動層ガス化炉２内において燃焼熱分解を行うことにより石炭ガス、石炭含有粉塵およびコークス半製品が形成される。熱分解層ガス化炉１１の上部は石炭ガスパイプにより循環流動層ガス化炉２の上部に連結される。循環流動層ガス化炉２内において形成される石炭ガス、石炭含有粉塵およびコークス半製品は石炭ガスパイプにより熱分解層ガス化炉１１に送入され、コークス半製品は熱分解層ガス化炉１１の底部に落ちる。ガス化剤はガス化剤通路１１１により熱分解層ガス化炉１１の底部に送入され、コークス半製品は熱分解層ガス化炉１１内において燃焼することにより熱分解ガス化をして石炭ガスを形成する。熱分解層ガス化炉１１の上部には石炭ガス出口１１２が形成され、炭殻は熱分解層ガス化炉１１の底部の炭殻収納部３０２に排出される。本発明の設計の原理は、循環流動層ガス化炉によりガス化をするときコールタール等の汚染物が形成されない原理と固定床ガス化のガス化効率が高い原理とを調整して１個の石炭ガス生成装置を設計することにより、コールタール等の汚染物の形成を防止し、かつ従来の石炭ガス生成装置の高変換率を維持することにある。本発明の効果は、石炭のガス化率が高く、ガス化をする過程においてコールタール等の汚染物が形成されなく、大型、中型、小型の各種のガス化装置に適用し、単位時間内のガス生成量の調節の範囲が大きいことにある。 In FIG. 2, a second embodiment of the apparatus for gasifying by the combination of the circulating fluidized bed and the pyrolysis bed of the present invention is disclosed. As shown in FIG. 2, the apparatus includes a circulating fluidized bed gasification furnace 2 and a pyrolysis bed gasification furnace 11. The circulating fluidized bed gasification furnace 2 includes a coal transport pipe 101 for transporting coal to the circulating fluidized bed gasification furnace, and a gasifying agent passage 102 for transporting a gasifying agent to the bottom of the circulating fluidized bed gasification furnace. Combustion pyrolysis of the coal in the circulating fluidized bed gasification furnace 2 forms coal gas, coal-containing dust and coke semi-finished product. The upper part of the pyrolysis bed gasification furnace 11 is connected to the upper part of the circulating fluidized bed gasification furnace 2 by a coal gas pipe. Coal gas, coal-containing dust and semi-finished coke products formed in the circulating fluidized bed gasification furnace 2 are fed into the pyrolysis bed gasification furnace 11 through a coal gas pipe, and the coke semi-finished products are stored in the pyrolysis bed gasification furnace 11. Falls to the bottom. The gasifying agent is sent to the bottom of the pyrolysis bed gasification furnace 11 through the gasification agent passage 111, and the coke semi-finished product is burned in the pyrolysis bed gasification furnace 11 to be pyrolyzed and gasified to produce coal gas. To form. A coal gas outlet 112 is formed in the upper portion of the pyrolysis bed gasification furnace 11, and the coal husk is discharged to the coal husk storage portion 302 at the bottom of the pyrolysis bed gasification furnace 11. The design principle of the present invention is one in which the principle that pollutants such as coal tar are not formed when gasifying by a circulating fluidized bed gasification furnace and the principle of fixed bed gasification with high gasification efficiency are adjusted. The design of the coal gas generator is to prevent the formation of pollutants such as coal tar and to maintain the high conversion rate of the conventional coal gas generator. The effect of the present invention is that the gasification rate of coal is high, pollutants such as coal tar are not formed in the process of gasification, and it is applied to various large-sized, medium-sized, and small-sized gasifiers. This is because the range of gas production control is large.
好適な実施例において、前記循環流動層ガス化炉２の上部はガス化炉キャビティであり、中部には通気器２０１が設けられ、下部は第一混合用気室２０２であり、ガス化剤は第一混合用気室２０２に送入される。熱分解層ガス化炉１１の炉本体１１３の底部は炭殻収納部３０２上に設置され、炭殻収納部３０２と熱分解層ガス化炉の炉本体１１３の底部との間には水密手段が設けられ、通気体３０１は前記熱分解層ガス化炉の炉本体１１３の底部に設けられかつ炭殻収納部３０２上に位置し、炭殻収納部３０２と通気体３０１の下部との間には第二混合用気室３０３が設けられ、ガス化剤は第二混合用気室３０３に送入される。好適な実施例において、前記循環流動層ガス化炉２は上部に設けられる傾斜の案内板１１４を含み、当該傾斜の案内板１１４は、石炭ガスパイプにより熱分解層ガス化炉１１に送入される石炭ガス、石炭含有粉塵およびコークス半製品を案内して、コークス半製品が熱分解層ガス化炉１１の底部に容易に落ちるようにする。 In a preferred embodiment, the upper part of the circulating fluidized bed gasification furnace 2 is a gasification furnace cavity, the middle part is provided with an aerator 201, the lower part is a first mixing air chamber 202, and the gasification agent is It is fed into the first mixing air chamber 202. The bottom of the furnace body 113 of the pyrolysis bed gasification furnace 11 is installed on the coal shell housing portion 302, and a watertight means is provided between the coal shell housing portion 302 and the bottom of the furnace body 113 of the pyrolysis bed gasification furnace. The ventilation body 301 is provided at the bottom of the furnace body 113 of the pyrolysis bed gasification furnace and is located on the charcoal shell storage portion 302, and between the carbon shell storage portion 302 and the lower portion of the ventilation body 301. A second mixing air chamber 303 is provided, and the gasifying agent is fed into the second mixing air chamber 303. In a preferred embodiment, the circulating fluidized bed gasification furnace 2 includes an inclined guide plate 114 provided at an upper portion thereof, and the inclined guide plate 114 is fed into the pyrolysis bed gasification furnace 11 by a coal gas pipe. The coal gas, coal-containing dust and coke semi-finished product are guided so that the coke semi-finished product easily falls to the bottom of the pyrolysis bed gasification furnace 11.
好適な実施例において、前記装置は、沈殿室、輸送装置、高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプを含む。前記熱分解層ガス化炉の上部と前記沈殿室の上部との間は石炭ガスパイプにより連結される。前記沈殿室の上部には傾斜の案内板が設けられ、底部には前記輸送装置が設けられる。前記輸送装置は粉塵パイプに連結される。前記高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプは第一混合用気室２０２に連結され、前記高温空気パイプ、蒸気パイプおよび酸素パイプは第二混合用気室３０３に連結される。 In a preferred embodiment, the device comprises a precipitation chamber, a transportation device, a hot air pipe, a steam pipe, an oxygen pipe and a dust pipe. An upper part of the pyrolysis bed gasification furnace and an upper part of the precipitation chamber are connected by a coal gas pipe. An inclined guide plate is provided at the top of the settling chamber, and the transportation device is provided at the bottom. The transport device is connected to the dust pipe. The hot air pipe, the steam pipe, the oxygen pipe and the dust pipe are connected to the first mixing air chamber 202, and the hot air pipe, the steam pipe and the oxygen pipe are connected to the second mixing air chamber 303.
以上、本発明の具体的な実施形態を詳細に説明してきたが、この技術分野を熟知する技術者は本発明の特許請求の範囲が定めた範囲を逸脱しない範囲において本発明の具体的な実施形態を自由に改良することができる。すなわち、本発明の特許請求の範囲が定めた範囲は上述した具体的な実施形態にのみ限定されるものでない。 Although the specific embodiments of the present invention have been described in detail above, a person skilled in the art will be able to implement the specific embodiments of the present invention without departing from the scope defined by the claims of the present invention. The form can be improved freely. That is, the scope defined by the claims of the present invention is not limited to the specific embodiments described above.
１ 石炭ホッパー
２ 循環流動層ガス化炉
３ サイクロン分離器
４ 沈殿室
５ 輸送装置
６ 高温空気パイプ
７ 蒸気パイプ
８ 酸素パイプ
９ 粉塵パイプ
２０１ 通気器
２０２ 第一混合用気室
３０１ 円錐形通気体
３０２ 炭殻収納部
３０３ 第二混合用気室
４０１ 傾斜の案内板
Ａ 石炭
Ｂ コークス半製品
Ｃ 石炭含有粉塵
Ｄ 炭殻
1 Coal Hopper 2 Circulating Fluidized Bed Gasification Furnace 3 Cyclone Separator 4 Settling Chamber 5 Transport Device 6 High Temperature Air Pipe 7 Steam Pipe 8 Oxygen Pipe 9 Dust Pipe 201 Aerator 202 First Mixing Air Chamber 301 Cone-shaped Ventilator 302 Charcoal Shell storage section 303 Second mixing air chamber 401 Slanted guide plate A Coal B Coke semi-finished product C Coal-containing dust D Coal shell
Claims (9)
石炭は石炭輸送パイプにより前記循環流動層ガス化炉に送入され、前記循環流動層ガス化炉の上部とサイクロン分離器の上部との間は石炭ガスパイプにより連結され、前記サイクロン分離器の上部と前記沈殿室の上部との間は石炭ガスパイプにより連結され、
前記循環流動層ガス化炉の上部はガス化炉キャビティであり、中部には通気器が設けられ、下部は第一混合用気室であり、前記サイクロン分離器内の上部には中心円筒部が設けられ、サイクロン分離器の底部は炭殻収納部上に設置され、炭殻収納部とサイクロン分離器の底部との間には水密手段が設けられ、通気体は前記サイクロン分離器の底部に設けられかつ炭殻収納部の上部に位置し、炭殻収納部と通気体の下方との間には第二混合用気室が設けられ、サイクロン分離器のキャビティの下部と通気体および通気体の下方の第二混合用気室とにより熱分解層ガス化炉が構成され、
前記沈殿室の上部には傾斜の案内板が設けられ、底部には輸送装置が設けられ、前記輸送装置は粉塵パイプに連結され、
前記高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプは循環流動層ガス化炉の下部の第一混合用気室に連結され、前記高温空気パイプ、蒸気パイプおよび酸素パイプは前記通気体の下方に設けられる第二混合用気室に連結され、
前記循環流動層ガス化炉は、石炭ガス、石炭含有粉塵およびコークス半製品を形成して、前記サイクロン分離器に送入し、前記コークス半製品は、前記熱分解層ガス化炉で燃焼熱分解され、前記熱分解層ガス化炉により形成された石炭ガスと、前記循環流動層ガス化炉により形成された石炭ガスおよび石炭含有粉塵は、前記沈殿室に送入され、前記石炭含有粉塵が前記沈殿室から前記循環流動層ガス化炉へ循環されることを特徴とする循環流動層と熱分解層の組合せによりガス化をする装置。 A device for gasifying coal into coal gas by a combination of a circulating fluidized bed and a pyrolysis bed, which is a circulating fluidized bed gasification furnace, a cyclone separator, a precipitation chamber, a transportation device, a high temperature air pipe, a steam pipe, an oxygen pipe. , Including dust pipe, charcoal shell storage, vent,
Coal is fed into the circulating fluidized bed gasification furnace by a coal transportation pipe, the upper part of the circulating fluidized bed gasification furnace and the upper part of the cyclone separator are connected by a coal gas pipe, and the upper part of the cyclone separator and Between the upper part of the precipitation chamber is connected by a coal gas pipe,
The upper part of the circulating fluidized bed gasification furnace is a gasification furnace cavity, the middle part is provided with an aerator, the lower part is a first mixing air chamber, and the upper part of the cyclone separator has a central cylindrical part. Provided, the bottom of the cyclone separator is installed on the coal shell storage, watertight means is provided between the coal shell storage and the bottom of the cyclone separator, and the vent is provided on the bottom of the cyclone separator. And a second mixing air chamber is provided between the charcoal shell storage part and the lower part of the vent body, and is located above the charcoal shell storage part. A pyrolysis bed gasification furnace is constituted by the lower second mixing air chamber,
An inclined guide plate is provided at the top of the settling chamber, a transportation device is provided at the bottom, and the transportation device is connected to a dust pipe,
The hot air pipe, steam pipe, oxygen pipe and dust pipe are connected to the first mixing air chamber at the bottom of the circulating fluidized bed gasification furnace, and the hot air pipe, steam pipe and oxygen pipe are provided below the vent. Connected to the second mixing air chamber provided ,
The circulating fluidized bed gasification furnace forms coal gas, coal-containing dust and coke semi-finished product, and feeds them into the cyclone separator, and the coke semi-finished product is combusted and pyrolyzed in the pyrolysis bed gasification furnace. The coal gas formed by the pyrolysis bed gasification furnace and the coal gas and the coal-containing dust formed by the circulating fluidized bed gasification furnace are fed into the precipitation chamber, and the coal-containing dust is apparatus for the combined gasification of the circulating fluidized bed pyrolysis layer, wherein Rukoto is circulated into the circulating fluidized bed gasification furnace from the precipitation chamber.
循環流動層ガス化炉内の石炭ガス、石炭含有粉塵およびコークス半製品をサイクロン分離器の上部からサイクロン分離器に送入し、前記コークス半製品を熱分解層ガス化炉に送入し、熱分解層ガス化炉の底部からガス化剤を送入し、前記コークス半製品を熱分解層ガス化炉において燃焼することにより熱分解ガス化をさらに行うステップｂと、
熱分解層ガス化炉により形成された石炭ガスと、循環流動層ガス化炉により形成された石炭ガスおよび石炭含有粉塵とは、前記中心円筒部により沈殿室に送入され、炭殻は熱分解層ガス化炉の底部の炭殻収納部から排出されるステップｃと、
前記石炭含有粉塵が沈殿室において沈殿した後、輸送装置と粉塵パイプにより循環流動層ガス化炉の底部の第一混合用気室に送入されて、前記沈殿室から前記循環流動層ガス化炉へ循環され燃焼熱分解ガス化を行うことにより前記循環流動層ガス化炉内の熱を補充するステップｄとを含むことを特徴とする請求項１に記載の装置を用いて循環流動層と熱分解層の組合せによりガス化をする方法。 Coal gas, coal-containing dust and coke semi-finished products are formed by initial combustion pyrolysis gasification of coal at a temperature of 900°C to 1200°C in a circulating fluidized bed gasification furnace, and coal-containing dust and coke semi-finished products are formed. The product is fed into the cyclone separator with coal gas,
Coal gas in the circulating fluidized bed gasification furnace, coal-containing dust and coke semi-finished product are sent to the cyclone separator from the upper part of the cyclone separator, and the coke semi-finished product is sent to the pyrolysis bed gasification furnace, A step b in which a gasifying agent is fed in from the bottom of the cracking bed gasification furnace and the coke semi-finished product is burned in the cracking bed gasification furnace to further perform pyrolysis gasification;
The coal gas formed by the pyrolysis bed gasification furnace and the coal gas and the coal-containing dust formed by the circulating fluidized bed gasification furnace are fed into the settling chamber by the central cylindrical portion, and the coal shell is pyrolyzed. Step c discharged from the coal shell storage section at the bottom of the bed gasifier,
After the coal-containing dust has settled in the settling chamber, it is fed into the first mixing air chamber at the bottom of the circulating fluidized bed gasification furnace by a transport device and a dust pipe, and the circulating fluidized bed gasifier from the settling chamber. CFB heat by using an apparatus described in claim 1, characterized in that it comprises a step d to replenish the heat of the circulating fluidized bed gasification furnace by the circulating performing combustion pyrolysis gasification into A method of gasification by combining decomposition layers.
循環流動層ガス化炉は循環流動層ガス化炉に石炭を輸送する石炭輸送パイプを含み、循環流動層ガス化炉の底部にガス化剤が送入され、前記石炭が循環流動層ガス化炉内において燃焼熱分解をすることにより石炭ガス、石炭含有粉塵およびコークス半製品が形成され、
熱分解層ガス化炉の上部は石炭ガスパイプにより循環流動層ガス化炉の上部に連結され、循環流動層ガス化炉内において形成される石炭ガス、石炭含有粉塵およびコークス半製品は前記石炭ガスパイプにより熱分解層ガス化炉に送入され、
前記コークス半製品は熱分解層ガス化炉の底部に落ち、ガス化剤は熱分解層ガス化炉の底部に送入され、前記コークス半製品は熱分解層ガス化炉内において燃焼することにより熱分解ガス化をして石炭ガスを形成し、熱分解層ガス化炉の上部には石炭ガス出口が形成され、石炭ガス及び石炭含有粉塵は前記石炭ガス出口から排出され、炭殻は熱分解層ガス化炉の底部の炭殻収納部に排出され、
前記循環流動層ガス化炉の上部はガス化炉のキャビティであり、中部には通気器が設けられ、下部は第一混合用気室であり、ガス化剤は第一混合用気室に送入され、
前記熱分解層ガス化炉の炉本体の底部は炭殻収納部上に設置され、炭殻収納部と熱分解層ガス化炉の炉本体の底部との間には水密手段が設けられ、通気体は前記熱分解層ガス化炉の炉本体の底部に設けられかつ炭殻収納部の上部に位置し、炭殻収納部と通気体の下部との間には第二混合用気室が設けられ、ガス化剤は第二混合用気室に送入され、
沈殿室、輸送装置、高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプを更に含み、
前記熱分解層ガス化炉の上部の石炭ガス出口と前記沈殿室の上部との間は石炭ガスパイプにより連結され、
前記沈殿室の上部には傾斜の案内板が設けられ、底部には前記輸送装置が設けられ、前記輸送装置は粉塵パイプに連結され、
前記高温空気パイプ、蒸気パイプ、酸素パイプおよび粉塵パイプは第一混合用気室に連結され、前記高温空気パイプ、蒸気パイプおよび酸素パイプは第二混合用気室に連結され、前記石炭含有粉塵が前記沈殿室から前記循環流動層ガス化炉へ循環されることを特徴とする循環流動層と熱分解層の組合せによりガス化をする装置。 Including circulating fluidized bed gasification furnace and pyrolysis bed gasification furnace,
The circulating fluidized bed gasification furnace includes a coal transportation pipe for transporting coal to the circulating fluidized bed gasification furnace, a gasifying agent is fed to the bottom of the circulating fluidized bed gasification furnace, and the coal is recycled into the circulating fluidized bed gasification furnace. Coal gas, coal-containing dust and coke semi-finished products are formed by combustion pyrolysis in
The upper part of the pyrolysis bed gasification furnace is connected to the upper part of the circulating fluidized bed gasification furnace by a coal gas pipe, and the coal gas formed in the circulating fluidized bed gasification furnace, the coal-containing dust and the coke semi-finished product are connected by the coal gas pipe. It was sent to the pyrolysis bed gasification furnace,
The coke semi-finished product falls to the bottom of the pyrolysis bed gasification furnace, the gasifying agent is fed to the bottom of the pyrolysis bed gasification furnace, and the coke semi-finished product burns in the pyrolysis bed gasification furnace. Pyrolysis gasification to form coal gas, a coal gas outlet is formed in the upper part of the pyrolysis bed gasification furnace, coal gas and coal-containing dust are discharged from the coal gas outlet, and the coal shell is pyrolyzed. It is discharged to the bottom of the bed gasification furnace in the shell housing .
The upper part of the circulating fluidized bed gasification furnace is a cavity of the gasification furnace, the middle part is provided with an aerator, the lower part is a first mixing air chamber, and the gasifying agent is sent to the first mixing air chamber. Entered,
The bottom portion of the furnace body of the pyrolysis bed gasification furnace is installed on the coal shell housing portion, and a watertight means is provided between the coal shell housing portion and the bottom portion of the furnace body of the pyrolysis bed gasification furnace. The gas is provided at the bottom of the furnace main body of the pyrolysis bed gasification furnace and is located at the upper part of the charcoal shell housing, and a second mixing air chamber is provided between the coal shell housing and the lower part of the vent. And the gasifying agent is fed into the second mixing air chamber,
Further including a precipitation chamber, transportation equipment, hot air pipes, steam pipes, oxygen pipes and dust pipes,
Between the coal gas outlet at the top of the pyrolysis bed gasifier and the top of the settling chamber is connected by a coal gas pipe,
An inclined guide plate is provided at the top of the settling chamber, the transport device is provided at the bottom, and the transport device is connected to a dust pipe,
The hot air pipe, the steam pipe, the oxygen pipe and the dust pipe are connected to the first mixing air chamber, the high temperature air pipe, the steam pipe and the oxygen pipe are connected to the second mixing air chamber, and the coal-containing dust is apparatus for gasification by the combination of a circulating fluidized bed pyrolysis layer, wherein Rukoto is circulated into the circulating fluidized bed gasification furnace from the precipitation chamber.
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| PCT/CN2017/088047 WO2018133303A1 (en) | 2017-01-23 | 2017-06-13 | Method and apparatus for implementing gasification by combining circulating fluidized bed and pyrolysis bed |
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| CN106635179B (en) * | 2017-01-23 | 2019-03-08 | 江苏华威机械制造有限公司 | A kind of technique and its device of recirculating fluidized bed and pyrolysis bed combined gasification |
| CN107245344B (en) * | 2017-06-24 | 2023-04-28 | 华中农业大学 | Low-energy-consumption circulating fluidized bed carbonization device and method for agricultural wastes |
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| CN111925829A (en) * | 2020-08-13 | 2020-11-13 | 刘建国 | Two segmentation coupling gasification equipment of organic solid useless fluidized bed-moving bed |
| CN113528191B (en) * | 2021-08-01 | 2022-12-02 | 中科聚信洁能热锻装备研发股份有限公司 | Coal gas circulating fluidized bed for finely separating coke slag |
| CN113583716B (en) * | 2021-08-08 | 2023-07-14 | 中科聚信洁能热锻装备研发股份有限公司 | Dual-cycle coal gas fluidized bed |
| CN113583717B (en) * | 2021-08-17 | 2023-07-18 | 中科聚信洁能热锻装备研发股份有限公司 | Fluidized bed combining boiling combustion and movable pyrolysis double-furnace |
| CN113684063A (en) * | 2021-09-05 | 2021-11-23 | 中科聚信洁能热锻装备研发股份有限公司 | Double-bed composite coal gasifier for burning off carbon-containing fly ash |
| CN114106885B (en) * | 2021-11-23 | 2022-07-26 | 新奥科技发展有限公司 | Gasification furnace system and semicoke distribution control method thereof |
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