CN103361125B - Semi-radiant semi-chill flow radiation syngas cooler apparatus - Google Patents
Semi-radiant semi-chill flow radiation syngas cooler apparatus Download PDFInfo
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- CN103361125B CN103361125B CN201310322452.7A CN201310322452A CN103361125B CN 103361125 B CN103361125 B CN 103361125B CN 201310322452 A CN201310322452 A CN 201310322452A CN 103361125 B CN103361125 B CN 103361125B
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- overflow weir
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- 230000005855 radiation Effects 0.000 title claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000002893 slag Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 239000002699 waste material Substances 0.000 claims description 57
- 239000003034 coal gas Substances 0.000 claims description 22
- 238000010791 quenching Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 230000008520 organization Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000005201 scrubbing Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 8
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 17
- 239000007789 gas Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 7
- 238000002309 gasification Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 206010020843 Hyperthermia Diseases 0.000 description 3
- 230000036031 hyperthermia Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention relates to a semi-radiant semi-chill flow radiation syngas cooler apparatus. The apparatus comprises a radiation mechanism and a chill mechanism, the radiation mechanism is composed of a slagging tube, a radiant syngas cooler, a water wall and a protection jacket, and the chill mechanism is composed of an overflow weir, chill nozzles, a water jacket and a downcomer; the top of the radiant syngas cooler is communicated with the slagging tube, a gas outlet is arranged at the lower portion of the radiant syngas cooler, and the bottom of the radiant syngas cooler is a crushed slug pool; the water wall is arranged in the radiant syngas cooler, and the protection jacket is an annular closed mantle cavity formed between the inner wall of the radiant syngas cooler and the water wall; the chill mechanism is arranged in the radiant syngas cooler, the chill nozzles are uniformly distributed in circumferential positions having different heights of the radiant syngas cooler, the water wall or the overflow weir; the bottom of the overflow weir and the downcomer are connected into one, and the bottom half portion of the downcomer stretches to a position below the water level of the crushed slag pool; and the water jacket surrounds the overflow weir and the periphery of the top half portion of downcomer, and is provided with a water inlet. The apparatus solves the problems of high engineering cost, large processing difficulty, large technologic control difficulty, bad coal kind adaptability, severe slag obstruction and the like of present radiation syngas coolers.
Description
Technical field
The present invention relates to a kind of steam generating plant, be specifically related to a kind of half radiation half chilling process radiation waste Pot devices that can reclaim coal gas hot after entrained flow gasification and high-temperature slag waste heat.
Background technology
At present, domestic and international entrained flow bed gasification technology is many, and applying more in Coal Chemical Industry is the technology such as Texaco, polynary slurry, multi-nozzle, Tsing-Hua University's stove.These technology common features generate about about 1400 degree coal gas of high temperature and molten state cinder by the generating gasification reaction in vapourizing furnace of coal water slurry and oxygen, and coal gas of high temperature eventually passes water and directly cools and enter next procedure.In this coal gasification course, the heat that hot coal gas and high-temperature slag carry fully does not reclaim.
Although also have both at home and abroad indivedual gasification producer to install radiation waste pot and convection current after vapourizing furnace to give up Pot devices, segmentation is taked to reclaim heat way.But, owing to there is certain defect in flow process and waste heat boiler design, what particularly existing radiation waste pot adopted is double-channel water cooling wall construction, cause construction costs high, difficulty of processing is large, and technique controlling difficulty is large, coal adaptability is poor, the the second water wall channel blockage being the most seriously double-channel water cooling wall construction is serious, causes gasification reaction to go on, brings serious problems to production.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of half radiation half chilling process radiation waste Pot devices, high to solve existing radiation waste pot construction costs, difficulty of processing is large, and technique controlling difficulty is large, coal adaptability difference and the problem such as stifled slag is serious.
For achieving the above object, the present invention takes following technical scheme: a kind of half radiation half chilling process radiation waste Pot devices, it is characterized in that, this device comprises: a radiation mechanism being used for carrying out with hot coal gas and slag radiation heat transfer, and the Quench mechanism that is used for carrying out coal gas of high temperature and slag direct heat exchange and scrubbing dust collection; Wherein, described radiation mechanism comprises slag pipe, radiation waste pot, water wall and protection chuck, and described slag pipe is arranged at the top of described radiation waste pot, and it is suitable for reading is communicated with vapourizing furnace, and end opening is communicated with described radiation waste pot; The bottom of described radiation waste pot offers gas exit, and the bottom of described radiation waste pot is for being equipped with the disintegrating slag pond of water coolant; Described water wall is arranged in described radiation waste pot, and extends to middle and lower part by the top of described radiation waste pot; Described protection chuck is the ring seal mantle cavity formed between described radiation waste pot inwall and described water wall, described protective folder put be provided with some rare gas elementes add gas port; In the described radiation waste pot of described Quench organization establishes between described water wall end and top, described disintegrating slag pond, it comprises overflow weir, some Quench shower nozzles, water jacket and downtake; Described Quench shower nozzle is evenly arranged on the circumferential position of described radiation waste pot, water wall or overflow weir different heights; Bottom and the described downtake of described overflow weir link into an integrated entity, and the Lower Half of described downtake stretches into below the water surface in described disintegrating slag pond; Described water jacket is enclosed in the periphery of the first half of described overflow weir and downtake, and the inwall of the outer, top of described water jacket and described radiation waste pot is fixed and is tightly connected, along fixing with the first half outer wall of described downtake and be tightly connected in bottom; Described water jacket is provided with a filler.
In a preferred embodiment, described water wall adopts single-pass configuration form.
In a preferred embodiment, described overflow weir is the shell structure of a taper, and described water jacket is a funnelform shell structure.
In a preferred embodiment, described overflow weir top is spination.
In a preferred embodiment, the described downtake inserting below the water surface radially offers several apertures on different heights.
In a preferred embodiment, the shape of described aperture is circular, ellipse, trilateral or Polygons.
The present invention is owing to taking above technical scheme; it has the following advantages: 1, the present invention adopts the radiation mechanism be made up of slag pipe, water wall, radiation waste pot and protection chuck; and water wall adopts single-pass configuration form; thus the next second passage blockage problem of double-channel water cooling cornice can be evaded, coal subject range is wider.Simultaneously owing to adopting single passage water wall, difficulty of processing and the construction costs of equipment significantly reduce, for technological operation is provided convenience condition.2, the present invention is provided with protection chuck between radiation waste pot inwall and water wall; operationally can not stop to add a certain amount of rare gas element in protection chuck; the rare gas element revealed enters radiation waste pot inside and mixes with coal gas; completely cut off between water wall and radiation waste drum body by rare gas element and conduct heat, thus make radiation waste drum body from hyperthermia radiation.3, the present invention adopts the Quench mechanism be made up of taper overflow weir, Quench shower nozzle, water jacket and downtake, and water jacket and taper overflow weir can protect Quench mechanism material therefor from hyperthermia radiation, and material rate reduces, and reduces equipment cost further; Taper overflow weir, by being uniformly distributed the water gone out from water jacket overflow, ensure that the wettability of taper overflow weir internal surface, thus ensures that the non-caked taper overflow weir of the flying dust do not solidified got off from radiation mechanism is surperficial, further ensures engineering reliability.4, the present invention is evenly arranged some Quench shower nozzles on the circumferential position of radiation waste pot, water wall or overflow weir different heights, chilled water is sprayed in hot coal gas and slag with mist, by the rapid gasification of chilled water, hot coal gas and slag temperature are sharply lowered the temperature, reach below safe coagulation temperature, thus ensure that the flying dust do not solidified solidifies safely, non-caked equipment.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the structural representation of Quench mechanism of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes radiation mechanism 100 and a Quench mechanism 200.
Radiation mechanism 100 comprises slag pipe 1, radiation waste pot 2, water wall 3 and protection chuck 4.Slag pipe 1 is arranged at the top of radiation waste pot 2, and it is suitable for reading is communicated with vapourizing furnace (not shown), and end opening is communicated with radiation waste pot 2, imports radiation waste pot 2 with the hot coal gas produced by vapourizing furnace and high-temperature slag.The bottom of radiation waste pot 2 offers gas exit 11, and the bottom of radiation waste pot 2 is for being equipped with the disintegrating slag pond 10 of water coolant.Water wall 3 is arranged in radiation waste pot 2, and extends to middle and lower part by the top of radiation waste pot 2.Protection chuck 4 be the ring seal mantle cavity formed between radiation waste pot 2 inwall and water wall 3, protect the upper and lower (only as example, being not limited to this) of chuck 4 be provided with special add rare gas element add gas port 12 and 13.
Operationally, entered in the water wall 3 of radiation waste pot 2 along slag pipe 1 water conservancy diversion by 1300 ° ~ 1400 ° hot coal gas of vapourizing furnace output and slag.Due to caliber change, hot coal gas and high-temperature slag flow velocity reduce, and progressively slow down due to pressure and action of gravity and run downwards and diffusion.First time heat exchange (radiation heat transfer) occurs with water wall 3 in hot coal gas and slag decline process, and in water wall 3, cold medium is heated, and heat is shifted out waste heat boiler 2.Meanwhile, temperature reduces because losing heat for hot coal gas and high-temperature slag, and therefore most of slag solidifies, and falls into Quench mechanism 200.
Meanwhile, continual by add gas port 12 and 13 to protection chuck 4 in add a certain amount of rare gas element.The rare gas element added enters radiation waste pot 2 inside by the leak (not shown) on water wall 3 and mixes with hot coal gas, utilize the principle that the rare gas element coefficient of heat transfer is less, come to conduct heat between isolated water wall 3 and radiation waste pot 2 cylindrical shell, thus make radiation waste pot 2 cylindrical shell from hyperthermia radiation.
In a preferred embodiment, water wall 3 adopts single-pass configuration form, thus can evade the next second passage blockage problem of double-channel water cooling cornice, and coal subject range is wider.Simultaneously owing to adopting single passage water wall, difficulty of processing and the construction costs of equipment significantly reduce, for technological operation is provided convenience condition.
As shown in Figure 1 and Figure 2, Quench mechanism 200 is arranged in the radiation waste pot 2 between water wall 3 end and top, disintegrating slag pond 10, and it comprises a taper overflow weir 5, some Quench shower nozzles 6, water jacket 7 and a downtake 8.Some Quench shower nozzles 6 are evenly arranged on the circumferential position of taper overflow weir 5 different heights, and bottom and the downtake 8 of taper overflow weir 5 link into an integrated entity, and the Lower Half of downtake 8 stretches into below the water surface in disintegrating slag pond 10.Water jacket 7 is a funnelform shell structure, and its underpart is provided with a filler 9.Water jacket 7 is enclosed in the periphery of the first half of taper overflow weir 5 and downtake 8, and the inwall of the outer, top of water jacket 7 and radiation waste pot 2 is fixed and is tightly connected, along fixing with the first half outer wall of downtake 8 and be tightly connected in bottom.
Operationally, the taper overflow weir 5 that the coal gas of high temperature of radiation heat transfer and slag enter Quench mechanism 200 is completed from radiation mechanism 100, the spray water xi that coal gas of high temperature and slag and Quench shower nozzle 6 spray carries out second time heat exchange (direct heat exchange), coal gas of high temperature and slag temperature are significantly reduced, and the slag that small part is not condensed thoroughly is solidified.To be entered in the water coolant in disintegrating slag pond 10 by the downtake 8 bottom taper overflow weir 5 through the coal gas of twice heat exchange cooling and wash, leave radiation waste pot 2 from gas exit 11 after removing the most of dust in coal gas and enter lower procedure.And the slag after solidifying is collected by the end opening that taper overflow weir 5 shrinks and falls in downtake 8 together, finally enter in the water coolant in disintegrating slag pond 10 and thoroughly cool, and irregularly discharge slag and a part of water coolant, to keep disintegrating slag pond 11 stable level.
Meanwhile, constantly in water jacket 7, inject water coolant by filler 9, water coolant goes out from taper overflow weir 5 top overflow, and within it surface forms water membrane, non-caked on taper overflow weir 5 to ensure the slag that small part is not condensed.
In a preferred embodiment, Quench shower nozzle 6 also can be evenly arranged on the circumferential position of miscellaneous part different heights, the positions such as radiation waste pot 2 cylindrical shell of such as water wall 3 end or water wall 3
In a preferred embodiment, radially can offer several apertures on different heights on the downtake 8 inserting below the water surface, the shape of aperture can be circular, ellipse, trilateral or Polygons etc.
In a preferred embodiment, engrail can be done in taper overflow weir 5 top, to play the effect being uniformly distributed current.
The various embodiments described above are only for illustration of the present invention, and wherein the structure, mode of connection etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (4)
1. a half radiation half chilling process radiation waste Pot devices, it is characterized in that, this device comprises:
The one radiation mechanism being used for carrying out with hot coal gas and slag radiation heat transfer, and
The one Quench mechanism being used for carrying out coal gas of high temperature and slag direct heat exchange and scrubbing dust collection;
Wherein, described radiation mechanism comprises slag pipe, radiation waste pot, water wall and protection chuck, and described slag pipe is arranged at the top of described radiation waste pot, and it is suitable for reading is communicated with vapourizing furnace, and end opening is communicated with described radiation waste pot; The bottom of described radiation waste pot offers gas exit, and the bottom of described radiation waste pot is for being equipped with the disintegrating slag pond of water coolant; Described water wall adopts single-pass configuration form, and it is arranged in described radiation waste pot, and extends to middle and lower part by the top of described radiation waste pot; Described protection chuck is the ring seal mantle cavity formed between described radiation waste pot inwall and described water wall, described protective folder put be provided with some rare gas elementes add gas port, described water wall offers the leak being communicated with described protection chuck and described radiation waste pot inside;
In the described radiation waste pot of described Quench organization establishes between described water wall end and top, described disintegrating slag pond, it comprises overflow weir, some Quench shower nozzles, water jacket and downtake; Described Quench shower nozzle is evenly arranged on the circumferential position of described radiation waste pot, water wall or overflow weir different heights; Described overflow weir is the shell structure of a taper, and bottom and the described downtake of described overflow weir link into an integrated entity, and the Lower Half of described downtake stretches into below the water surface in described disintegrating slag pond; Described water jacket is a funnelform shell structure, described water jacket is enclosed in the periphery of the first half of described overflow weir and downtake, and the inwall of the outer, top of described water jacket and described radiation waste pot is fixed and is tightly connected, along fixing with the first half outer wall of described downtake and be tightly connected in bottom; Described water jacket is provided with a filler.
2. a kind of half radiation half chilling process radiation waste Pot devices as claimed in claim 1, it is characterized in that, described overflow weir top is spination.
3. a kind of half radiation half chilling process radiation waste Pot devices as claimed in claim 1 or 2, is characterized in that, the described downtake inserting below the water surface radially offers several apertures on different heights.
4. a kind of half radiation half chilling process radiation waste Pot devices as claimed in claim 3, is characterized in that, the shape of described aperture is circular, oval or Polygons.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322452.7A CN103361125B (en) | 2013-07-29 | 2013-07-29 | Semi-radiant semi-chill flow radiation syngas cooler apparatus |
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| CN201310322452.7A CN103361125B (en) | 2013-07-29 | 2013-07-29 | Semi-radiant semi-chill flow radiation syngas cooler apparatus |
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| CN103361125A CN103361125A (en) | 2013-10-23 |
| CN103361125B true CN103361125B (en) | 2014-12-31 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666583A (en) * | 2013-11-11 | 2014-03-26 | 煤炭科学研究总院 | Waste heat boiler device of entrained bed gasifier |
| CN104498105B (en) * | 2014-12-09 | 2017-02-22 | 西北化工研究院 | Chilling type single waste pan reactor |
| CN104593085B (en) * | 2015-01-08 | 2016-08-17 | 西安交通大学 | A kind of granulating slag melts coal gasifier and coal gas preparation technology |
| CN104629807A (en) * | 2015-03-03 | 2015-05-20 | 华东理工大学 | Chilling process gasifier with high-temperature heat recovery unit |
| CN104946311B (en) * | 2015-05-28 | 2018-03-16 | 中国寰球工程公司 | Chilling-type powder coal gasification furnace under a kind of half useless pot |
| CN108485711B (en) * | 2018-03-21 | 2020-05-08 | 西北化工研究院有限公司 | Chilling chamber of gasification furnace and gasification furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427940A (en) * | 2000-05-05 | 2003-07-02 | 陶氏环球技术公司 | Apparatus and method for quenching hot gas |
| CN201065399Y (en) * | 2007-07-20 | 2008-05-28 | 西北化工研究院 | Air flow bed coal gasification reactor |
| US8163047B2 (en) * | 2007-01-10 | 2012-04-24 | General Electric Company | Methods and apparatus for cooling syngas in a gasifier |
| CN102796570A (en) * | 2011-12-28 | 2012-11-28 | 上海锅炉厂有限公司 | Novel composite type high-temperature raw gas cooling and washing equipment |
| CN103146433A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Gasifier of entrained-flow bed with single nozzle |
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2013
- 2013-07-29 CN CN201310322452.7A patent/CN103361125B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427940A (en) * | 2000-05-05 | 2003-07-02 | 陶氏环球技术公司 | Apparatus and method for quenching hot gas |
| US8163047B2 (en) * | 2007-01-10 | 2012-04-24 | General Electric Company | Methods and apparatus for cooling syngas in a gasifier |
| CN201065399Y (en) * | 2007-07-20 | 2008-05-28 | 西北化工研究院 | Air flow bed coal gasification reactor |
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| CN103146433A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Gasifier of entrained-flow bed with single nozzle |
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Address after: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee after: Beijing Tiandi Sunac Technology Co.,Ltd. Address before: 102606 No.5, Yulong Street, Caiyu Economic Development Zone, Caiyu Town, Daxing District, Beijing Patentee before: CHINA COAL RESEARCH INSTITUTE (CCRI) ENERGY SAVING TECHNOLOGY CO.,LTD. |