CN203807410U - Pressurized gasification device for dry powder - Google Patents
Pressurized gasification device for dry powder Download PDFInfo
- Publication number
- CN203807410U CN203807410U CN201420198754.8U CN201420198754U CN203807410U CN 203807410 U CN203807410 U CN 203807410U CN 201420198754 U CN201420198754 U CN 201420198754U CN 203807410 U CN203807410 U CN 203807410U
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- China
- Prior art keywords
- vapourizing furnace
- water
- paragraph
- gasifier
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title claims abstract description 21
- 238000002309 gasification Methods 0.000 title abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 10
- 239000010815 organic waste Substances 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 12
- 239000003245 coal Substances 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Landscapes
- Industrial Gases (AREA)
Abstract
The utility model discloses a pressurized gasification device for dry powder. The pressurized gasification device for dry powder comprises a gasifier shell, wherein an inner water cooling wall of the gasifier is arranged inside the gasifier shell; a slag basin is arranged at the bottom of the inner water cooling wall of the gasifier; an output pipe at the bottom of the slag basin extends out of the gasifier shell and is connected with the inlet of a slag collecting tank; the outlet of the slag collecting tank is connected with a slag lock bucket; a process burner is arranged at the lower part of the gasifier shell; two sections of cooling water nozzles are arranged in the middle of the gasifier shell; the gasifier shell and the upper part of the inner water cooling wall of the gasifier are connected through an air guide section and a chilling tank; a gas outlet of the chilling tank is connected with a hydrocyclone through a venturi scrubber; the gas outlet of the hydrocyclone is connected with a washing tower. By adopting the pressurized gasification device, the traditional upstream dry pulverized coal pressurized gasification process is not prolonged, the complexity of the process and the operation is not increased, and organic wastewater degradation with large processing difficulty and high cost in chemical industry production can be achieved just by adding a few of equipments, such as an organic wastewater buffer tank, a filter and the like.
Description
Technical field
The utility model belongs to derived energy chemical technical field, is specifically related to a kind of dry powder pressurizing gasifying apparatus.
Background technology
In recent years, China's oil consumption increases year by year, and International Petroleum Price skyrockets simultaneously, and the coal-based clean energy technologys such as coal preparing liquid fuel, coal instead of natural gas processed, coal-based chemicals, IGCC and Poly-generation are paid close attention to more and more widely.
Large-scale entrained flow bed gasification technology is gordian technique and the leading technology of the coal-based clean energy, particularly large powder pressurized gasification technology because efficiency of energy utilization is high, wide, the single long operational time of coal adaptability, water consumption be low, do not produce the organic pollutants such as tar, phenol, naphthalene, becomes the main flow direction of modern large-scale gasification technology development.According to the type of cooling of synthetic gas, large powder gasification can be divided into the technical process of useless pot and chilling technology flow process.
The technical process of useless pot is to adopt waste heat boiler to reclaim the sensible heat of crude synthesis gas.For avoiding the heat-transfer surface dust stratification of useless pot, conventionally extract the mode of the cooled coal gas circulation in technique later stage coal gas of high temperature is carried out to Quench, its temperature is reduced to following approximately 200 DEG C of flying dust fusing point.Typical case's pot destroying process comprises Shell coal gasifying process, Huaneng Group double-section dry coal powder pressure gasification process pot destroying process etc.The advantage of useless pot technical process is fully to reclaim synthetic gas heat, improves efficiency of energy utilization.The equipment scales such as useless pot after shortcoming vapourizing furnace, porcelain filter, washing tower increase, and investment of equipment increases; Also there is syngas cooler dust stratification, porcelain filter breakage, swash the operation risks such as cooling air circulation system fault simultaneously; In part subsequent production technique, need to change synthetic gas, for meeting the requirement that changes technique water-gas ratio, the part steam injection that useless pot is produced is to synthetic gas shift converter, and the actual thermo-efficiency improving decreases.
Chilling technology flow process adopts chilled water directly to contact cooling to high-temperature crude synthesis gas, and washing simultaneously removes most of flying dust in crude synthesis gas, and makes crude synthesis gas saturated.Typical chilling technology flow process comprises GSP gasifying process, Huaneng Group double-section dry coal powder pressure gasification process chilling process, space flight furnace gas metallization processes, Tsing-Hua University's furnace gas metallization processes etc.Compare with the technical process of useless pot, chilling technology flow process process is simple, and serviceability is high, and equipment manufacturing cost is low, goes out battery limit (BL) synthetic gas steam quality and can meet the requirement of subsequent conversion technique.Its shortcoming is that the middle pressure steam reclaiming is more less than the technical process of useless pot.
At present, above-mentioned two kinds of technical process have all successfully obtained industrial application.Although dry powder pressure gasification process flow process itself can not produce the organic wastewaters such as tar, phenol, naphthalene, in some production process, other parallel technique or downstream process may produce this class organic waste water.For example, in the process of coal instead of natural gas processed, part gas maked coal device adopts fixed bed gasification technology, can improve the CH4 content in synthetic gas, but can produce a large amount of organic waste water in fixed bed gasification production process.Other production process device, in the synthesis procedure in downstream, also may produce organic waste water.These organic waste waters, difficult treatment, need to arrange large-scale organic waste-water treating apparatus, and processing costs is very expensive.Therefore, on the basis of existing technology, developing a kind of investment and the low modern large powder pressurizing gasifying apparatus of working cost is a very significant task.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of dry powder pressurizing gasifying apparatus, high-temperature synthesis gas region at vapourizing furnace sprays into organic waste water, on the one hand high-temperature synthesis gas is lowered the temperature, the organism in Decomposition Wastewater in hot environment on the other hand, less investment, compares and only needs to increase a small amount of cheap apparatus with similar gasification installation, technical process is simple, easy to operate.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of dry powder pressurizing gasifying apparatus, comprise vapourizing furnace housing 1, in vapourizing furnace housing 1, be provided with water wall 2 in vapourizing furnace, in vapourizing furnace, the bottom of water wall 2 is provided with slag bath 12, slag bath 12 bottom output tubes stretch out outside vapourizing furnace housing 1 and are connected with slag holding tank 13 entrances, 13 outlets of slag holding tank are connected with dreg-locking hopper 14, the bottom of vapourizing furnace housing 1 is provided with process burner 11, the middle part of vapourizing furnace housing 1 is provided with first paragraph desuperheating water nozzle 7, deoxidation organic waste water is successively by first paragraph desuperheating water feed water strainer 8, first paragraph desuperheating water surge tank 9, first paragraph desuperheating water strainer 10 is connected with first paragraph desuperheating water nozzle 7, the top of vapourizing furnace housing 1 is provided with second segment desuperheat nozzle 3, deoxidation oiler feed or buck are successively by second segment desuperheating water feed water strainer 4, second segment desuperheating water surge tank 5, second segment desuperheating water strainer 6 is connected with second segment desuperheat nozzle 3, vapourizing furnace housing 1, in vapourizing furnace, water wall 2 tops are connected with Quench tank 16 by air-guide section 15, Quench tank 16 pneumatic outlets are connected with hydrocyclone 18 by Venturi scrubber 17, hydrocyclone 18 pneumatic outlets are connected with washing tower 19.
Described vapourizing furnace is upstriker dry powder pressurized-gasification furnace.
Described first paragraph desuperheat nozzle 7 and second segment desuperheat nozzle 3 require to make desuperheating water atomizing particle size be less than 400 μ m, and should select little spray angle, and spray angle is less than 90 °.
Described first paragraph desuperheat nozzle 7 and second segment desuperheat nozzle 3 can arrange more than two in Mei Duan desuperheat district, and every section of desuperheat nozzle number is determined by injection flow rate, is arranged symmetrically with.
Described first paragraph desuperheating water surge tank 9, second segment desuperheating water surge tank 5, the nitrogen that its pressure comes by pipe network maintains pressure-stabilisation.
Described washing tower 19 is tray column, and tower top syngas outlet arranges scum dredger.
The utility model does not extend line dry coal powder pressure gasifying technical process traditionally, do not increase the complicacy of technique and operation, only increase a small amount of equipment such as organic waste water surge tank and strainer, can realize the organic wastewater degraded processing large to intractability in Chemical Manufacture, expense is high.
Brief description of the drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Those skilled in the art understand, and following content is not the restriction to the utility model protection domain.Any improvement of making on the utility model basis and variation are all within protection domain of the present utility model.
With reference to accompanying drawing, a kind of dry powder pressurizing gasifying apparatus, comprise vapourizing furnace housing 1, in vapourizing furnace housing 1, be provided with water wall 2 in vapourizing furnace, in vapourizing furnace, the bottom of water wall 2 is provided with slag bath 12, slag bath 12 bottom output tubes stretch out outside vapourizing furnace housing 1 and are connected with slag holding tank 13 entrances, 13 outlets of slag holding tank are connected with dreg-locking hopper 14, the bottom of vapourizing furnace housing 1 is provided with process burner 11, the middle part of vapourizing furnace housing 1 is provided with first paragraph desuperheating water nozzle 7, deoxidation organic waste water is successively by first paragraph desuperheating water feed water strainer 8, first paragraph desuperheating water surge tank 9, first paragraph desuperheating water strainer 10 is connected with first paragraph desuperheating water nozzle 7, the top of vapourizing furnace housing 1 is provided with second segment desuperheat nozzle 3, deoxidation oiler feed or buck are successively by second segment desuperheating water feed water strainer 4, second segment desuperheating water surge tank 5, second segment desuperheating water strainer 6 is connected with second segment desuperheat nozzle 3, vapourizing furnace housing 1, in vapourizing furnace, water wall 2 tops are connected with Quench tank 16 by air-guide section 15, Quench tank 16 pneumatic outlets are connected with hydrocyclone 18 by Venturi scrubber 17, hydrocyclone 18 pneumatic outlets are connected with washing tower 19.
Described vapourizing furnace is upstriker dry powder pressurized-gasification furnace.
Described first paragraph desuperheat nozzle 7 and second segment desuperheat nozzle 3 require to make desuperheating water atomizing particle size be less than 400 μ m, and should select little spray angle, and spray angle is less than 90 °.
Described first paragraph desuperheat nozzle 7 and second segment desuperheat nozzle 3 can arrange more than two in Mei Duan desuperheat district, and every section of desuperheat nozzle number is determined by injection flow rate, is arranged symmetrically with.
Described first paragraph desuperheating water surge tank 9, second segment desuperheating water surge tank 5, the nitrogen that its pressure comes by pipe network maintains pressure-stabilisation.
Described washing tower 19 is tray column, and tower top syngas outlet arranges scum dredger, reduces synthetic band of gas water, the synthetic pneumatic transmission lower procedure after washing.
Principle of work of the present utility model is:
The mode that dry powder fuel is carried with concentrated phase by inert carrier gas is sent into vapourizing furnace by the dry powder passage of process burner 11, oxygenant (oxygen/oxygen enrichment/water vapor/carbonic acid gas) is sent into vapourizing furnace by process burner 11 oxygen channels, dry powder fuel and oxygenant, in the reaction of vapourizing furnace reaction zone generating gasification, generate the crude synthesis gas of High Temperature High Pressure.It is up that crude synthesis gas carries flying dust, and the liquid slag that gasification produces falls into slag bath 12 Quench and becomes solid granule, and the solid slag after Quench falls into slag holding tank 13 and collects, and discharge by dreg-locking hopper 14 decompressions.
Up High Temperature High Pressure crude synthesis gas, through two-stage cooling, makes crude synthesis gas temperature be down to following about 200 DEG C of flying dust melting temperature and discharges vapourizing furnace.At first paragraph spray desuperheating district, the organic waste water that employing system is sent here outward.First, organic waste water filters and sends into first paragraph desuperheating water surge tank 9 through first paragraph desuperheating water feed water strainer 8, for maintaining system long-term operation, first paragraph desuperheating water feed water strainer 8 should arrange stand-by facilities, can adopt online or off-line cleaning in the time that its differential pressure is too high.The organic waste water of first paragraph desuperheating water surge tank 9 buffer memorys filters through desuperheating water strainer 10, is atomized into fine droplets sprays into vapourizing furnace by first paragraph desuperheating water nozzle 7.For realizing the object of microatomization, many desuperheat nozzles should be set, uniform.Under given operating mode, first paragraph desuperheating water surge tank 9 should keep stable pressure reduction with vapourizing furnace, and nitrogen or water-fast rare gas element that its pressure is come by pipe network regulate, and typical regulative mode is a point process control.First paragraph desuperheat district temperature out be controlled at 1050 DEG C~more than 1150 DEG C.The setting in second segment desuperheat district and operation scheme and first paragraph desuperheat district are similar, and desuperheating water is for not containing organic oiler feed or circulation buck or other de-oxygenised water, and synthetic gas temperature is reduced to 800 DEG C~900 DEG C the most at last.
Synthetic gas after desuperheat imports the further Quench of Quench tank 16 through air-guide section 15, removes the most of flying dust in crude synthesis gas simultaneously, and makes synthetic gas fully saturated, improves crude synthesis gas steam quality.Crude synthesis gas after Quench washs and makes fine particle wetting through Venturi scrubber 17, sends into hydrocyclone 18 and further carries out removing of solid particulate matter.Enter washing tower 19 by the crude synthesis gas of hydrocyclone 18 and further wash, remove trickle grit, halogen and other impurity.
Claims (1)
1. a dry powder pressurizing gasifying apparatus, comprise vapourizing furnace housing (1), it is characterized in that: in vapourizing furnace housing (1), be provided with water wall (2) in vapourizing furnace, in vapourizing furnace, the bottom of water wall (2) is provided with slag bath (12), slag bath (12) bottom output tube stretches out outside vapourizing furnace housing (1) and is connected with slag holding tank (13) entrance, slag holding tank (13) outlet is connected with dreg-locking hopper (14), the bottom of vapourizing furnace housing (1) is provided with process burner (11), the middle part of vapourizing furnace housing (1) is provided with first paragraph desuperheating water nozzle (7), deoxidation organic waste water is successively by first paragraph desuperheating water feed water strainer (8), first paragraph desuperheating water surge tank (9), first paragraph desuperheating water strainer (10) is connected with first paragraph desuperheating water nozzle (7), the top of vapourizing furnace housing (1) is provided with second segment desuperheat nozzle (3), deoxidation oiler feed or buck are successively by second segment desuperheating water feed water strainer (4), second segment desuperheating water surge tank (5), second segment desuperheating water strainer (6) is connected with second segment desuperheat nozzle (3), vapourizing furnace housing (1), in vapourizing furnace, water wall (2) top is connected with Quench tank (16) by air-guide section (15), Quench tank (16) pneumatic outlet is connected with hydrocyclone (18) by Venturi scrubber (17), hydrocyclone (18) pneumatic outlet is connected with washing tower (19).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420198754.8U CN203807410U (en) | 2014-04-23 | 2014-04-23 | Pressurized gasification device for dry powder |
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CN201420198754.8U CN203807410U (en) | 2014-04-23 | 2014-04-23 | Pressurized gasification device for dry powder |
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CN203807410U true CN203807410U (en) | 2014-09-03 |
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CN201420198754.8U Expired - Lifetime CN203807410U (en) | 2014-04-23 | 2014-04-23 | Pressurized gasification device for dry powder |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103965966A (en) * | 2014-04-23 | 2014-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Dry powder pressurizing gasification device with organic wastewater treatment |
CN106318470A (en) * | 2016-08-31 | 2017-01-11 | 中科合成油工程股份有限公司 | Method for twice chilling and cooling syngas by atomizing water |
WO2022148022A1 (en) * | 2021-01-09 | 2022-07-14 | 中国华能集团清洁能源技术研究院有限公司 | Efficient gasifier and working method thereof |
-
2014
- 2014-04-23 CN CN201420198754.8U patent/CN203807410U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103965966A (en) * | 2014-04-23 | 2014-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Dry powder pressurizing gasification device with organic wastewater treatment |
CN106318470A (en) * | 2016-08-31 | 2017-01-11 | 中科合成油工程股份有限公司 | Method for twice chilling and cooling syngas by atomizing water |
WO2022148022A1 (en) * | 2021-01-09 | 2022-07-14 | 中国华能集团清洁能源技术研究院有限公司 | Efficient gasifier and working method thereof |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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Granted publication date: 20140903 |
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CX01 | Expiry of patent term |