CN103789045A - Dry-method purifying and recycling process for dry distillation gas and mixed type gas condensation device - Google Patents
Dry-method purifying and recycling process for dry distillation gas and mixed type gas condensation device Download PDFInfo
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Abstract
The invention discloses a dry-method purifying and recycling process for dry distillation gas, which generates less oil sludge, basically does not generate wastewater and can respectively recycle tar with a high boiling point and light oil with a low boiling point, and a mixed type gas condensation device which can be used for overcoming the problem that current spraying and cooling generate a lot of wastewater, and can be conveniently used for rapidly and accurately controlling the temperature of cooled gas. The dry-method purifying and recycling process comprises the following processing steps: (1) carrying out dry-type dust removal and purification on the high-temperature dry distillation gas discharged by an industry kiln stove; (2) introducing dust-removed and purified gas into a first cooling device so that the gas is subjected to non-spraying cooling in the first cooling device to separate out tar; (3) introducing the cooled gas discharged by the first cooling device into a second cooling device so that light oil is separated out from gas after the gas is subjected to the non-spraying cooling in the second cooling device; carrying out subsequent treatment on tail gas. In the first cooling device and the second cooling device, at least the first cooling device is a mixed air cooling device; the device is used for mixing the gas and cooling air to rapidly cool the gas.
Description
Technical field
The present invention relates to a kind of dry distillation gas dry cleaning and recovering process and hybrid air-cooling apparatus.
Background technology
The technique at present recovery of dry distillation gas mainly being adopted is: the high temperature carbonization coal gas of first Industrial Stoves being discharged is sent into tornado dust collector and carried out high-temp. vortex dedusting, then the gas after directly adopting secondary spraying cooling mode to dedusting carries out spraying cooling and reclaims tar, and tail gas is for burning or generating.The subject matter that this technique exists is: the first, when spraying cooling, because the dust content in gas is large, be difficult in a large number processing greasy filth, easily block system pipelines thereby produce; The second, spraying cooling mode produces a large amount of phenolic wastewater, processes trouble; The 3rd, the tar rate of recovery is low, and the tar quality of recovery is low, and cannot be in removal process directly by thorough light oil lower to tar higher boiling point and boiling point, clean cut separation; The 4th, environmental pollution is serious, the granular material discharged outstanding problem that exceeds standard of PM2.5.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of greasy filth dry distillation gas dry cleaning and recovering process few, that substantially do not produce waste water and tar higher boiling point and the lower light oil of boiling point can be reclaimed respectively.In addition, the present invention also will provide a kind of hybrid air-cooling apparatus, overcomes current spraying cooling and produces the problem of a large amount of waste water, and be convenient to the temperature of the gas that is cooled to carry out fast, accurately control.
Dry distillation gas dry cleaning and recovering process of the present invention, its step comprises: the high temperature carbonization coal gas of 1) Industrial Stoves being discharged carries out dry gas cleaning purification, makes the dust content in coal gas be reduced to 20-50mg/Nm
3below; 2) coal gas after udst separation is imported to the first refrigerating unit, make coal gas after non-spraying cooling, separate out tar in the first refrigerating unit, tar flows out and reclaims from this device; 3) coal gas after the cooling of the first refrigerating unit being discharged imports the second refrigerating unit, makes coal gas after non-spraying cooling, separate out light oil in the second refrigerating unit, and light oil flows out and reclaims from this device, and tail gas enters subsequent disposal; In described the first refrigerating unit and the second refrigerating unit, at least the first refrigerating unit is hybrid air-cooling apparatus, and this hybrid air-cooling apparatus is by mixing coal gas and make coal gas cooling rapidly with cold gas; Described hybrid air-cooling apparatus comprises the air-flow hybrid chamber being made up of housing and is positioned at the fluid collection device of air-flow hybrid chamber bottom, on housing, be respectively arranged with the gas entrance that is cooled being communicated with this air-flow hybrid chamber, the gas that is cooled outlet and cold gas entrance, be cooled and mix with cold gas and be cooled when gas flows in air-flow hybrid chamber, cold gas entrance is connected with cooling source of the gas by flow regulation device.Wherein, described the second refrigerating unit can use hybrid air-cooling apparatus, but preferably adopts recuperative heat exchanger for the consideration of its usage economy aspect.
Above-mentioned technique has been used a kind of hybrid air-cooling apparatus.The cooling principle of this hybrid air-cooling apparatus is by cold gas being mixed to the gas that is cooled (for above-mentioned technique, the gas that is cooled is coal gas, but this hybrid air-cooling apparatus is also can be for cooling other gases except coal gas time) and the gas that makes to be cooled is lowered the temperature rapidly.As long as control the incorporation of cold gas well, the temperature of the gas that is cooled just can be controlled accurately, and this is for coal gas cooling, significant.Because, the boiling spread wider (being generally 450-1000 ℃) of tar, can be divided into low-temperature pyrolysis tar (450-650 ℃), medium temperature carbonization tar (600-800 ℃) and high temperature carbonization tar (900-1000 ℃), in the situation that adopting hybrid air-cooling apparatus, the cooling extent of the actual temperature accurate adjustment coal gas of the high temperature carbonization coal gas that this hybrid air-cooling apparatus can be discharged according to Industrial Stoves in hybrid air-cooling apparatus, thereby both can obtain the tar of specific boiling range, also be that the cooling light oil (boiling point of light oil is generally 30-220 ℃) that obtains of the second refrigerating unit is created temperature condition simultaneously.Except cooling rapidly, the feature that can accurately control of temperature, because this hybrid air-cooling apparatus by mixing cold gas the gas that is cooled make to be cooled gas cooling in the finite space of air-flow hybrid chamber, pressure-acting has strengthened fluid molecule reunites, and therefore also can improve the rate of recovery of tar.In addition, the type of cooling of hybrid air-cooling apparatus has determined not produce hardly in its process of cooling waste water, and because the dust content in coal gas has first been reduced to 20-50mg/Nm
3below, therefore the growing amount of greasy filth is also little.
In dry distillation gas dry cleaning and recovering process of the present invention, the cold gas that described hybrid air-cooling apparatus uses is preferably from liquid nitrogen source or natural gas liquids source.Liquid nitrogen or natural gas liquids temperature are low, good cooling results, and can in crude gas, not introduce the harmful material of coal gas dry-method purification recovery.In the time that this hybrid air-cooling apparatus is used for cooling other gases except coal gas, can select suitable cold gas according to the situations such as gas specific nature that are cooled.
The high temperature carbonization gas temperature of discharging when Industrial Stoves is higher, and the tar boiling temperature of actual recovered is when relatively low, be preferably in described step 1) and step 2) between increase by the first additional step, import a recuperative heat exchanger by the coal gas after udst separation and carry out high-temperature residual heat recycling, and then the coal gas that recuperative heat exchanger is discharged imports the first refrigerating unit.Can make full use of like this dry distillation gas waste heat, save energy consumption.
Described step 1) can purify means by different dry gas cleanings the dust content in coal gas is controlled to 20-50mg/Nm
3below, thus guarantee minute quantity greasy filth produce.For example, while, adopting electric precipitator, just content can be controlled at and be slightly less than 50mg/Nm
3scope in.Step 1) preferably can purify to control its dust content content by adopting the high temperature air filtration device of sintered porous membrane cartridge to carry out dry gas cleaning to coal gas, because can further reduce like this dust content (20mg/Nm
3below), thus reduce the generation of greasy filth, in the time of high temperature air filtration device that employing contains sintered porous membrane cartridge, the temperature of controlling this high temperature air filtration device purge gas is necessary, otherwise, once with the lower purge gas of temperature, sintered porous membrane cartridge be carried out to blowback to remove the filter cake of cartridge surface, can form dewfall in cartridge surface immediately, make filter core be subject to being difficult to the pollution of recovery, reduce its work-ing life, therefore, the present invention's heat transferring medium that also further setting is carried out heat exchange by described recuperative heat exchanger and coal gas comprises first medium and second medium, described first medium and second medium are selected one and are carried out heat exchange with coal gas in entering recuperative heat exchanger under the control of import shifter, after described first medium enters recuperative heat exchanger heating again under the control of outlet shifter as the blowback air of filtration unit and the filtration unit back-blowing device that leads, when described second medium enters other use sources of leading except filtration unit back-blowing device under the control of outlet shifter again after recuperative heat exchanger heating.Like this, in the time that needs carry out blowback to sintered porous membrane cartridge, inject first medium (for example nitrogen, argon gas) by import shifter to recuperative heat exchanger, after first medium is heated, (do not need again first medium to be heated by the outlet shifter filtration unit back-blowing device that leads again, save the energy), finally act on filter core by filtration unit back-blowing device; And in the time not needing sintered porous membrane cartridge to carry out blowback, inject second medium (for example water) by import shifter to recuperative heat exchanger, second medium is heated for example, by outlet shifter other use sources (numerous occasions that need steam heating insulation on actual production line) of leading again, so that coal gas waste heat is more made full use of.
In above-mentioned technique, the motion of gas can be driven by the blower fan between the first refrigerating unit and the second refrigerating unit, the gas temperature that acts on like this blower fan can too high (mainly not lowering the temperature by the first refrigerating unit), dust content is lower (purified and controlled dust content by dry gas cleaning) above also, be conducive to blower fan use steady in a long-term, and coal gas can pass through blower fan supercharging entering before the second refrigerating unit, is conducive to improve heat exchange efficiency; And in the time being provided with blower fan between the first refrigerating unit and the second refrigerating unit, in described step 2) and step 3) between preferably also should comprise the second additional step, the coal gas that is about to the first refrigerating unit discharge directly imports an electrical tar precipitator decoking mist of oil, and then the coal gas that electrical tar precipitator is discharged imports the second refrigerating unit through described blower fan again.Remove tar fog by electrical tar precipitator, can avoid blower fan to stop up because of life-time service.
As the further improvement to hybrid air-cooling apparatus internal structure, the present invention is also provided with one or be densely covered with the mixed gas homogenizing plate of breather hole along at least two of air flow line interval in the air-flow hybrid chamber of described hybrid air-cooling apparatus, and described mixed gas homogenizing plate is cooled between gas entrance and the gas that is cooled outlet hybrid air-cooling apparatus.Mixed gas homogenizing plate can extend the residence time of gas in air-flow hybrid chamber, on mixed gas homogenizing plate, densely covered breather hole plays dissemination to air-flow simultaneously, therefore, the gas that is cooled can be mixed more fully with cold gas by mixed gas homogenizing plate is set, cooling efficiency, the tar rate of recovery are all got a promotion.Described mixed gas homogenizing plate can design one for funnel-shaped structure, and its cone angle place, bottom has oil discharge outlet, and like this, the fluid nature that can be convenient to adhere to mixed gas homogenizing plate flows to oil discharge outlet, thereby prevents that mixed gas homogenizing plate from adhering to too much tar and stopping up.
A kind of hybrid air-cooling apparatus provided by the invention comprises the air-flow hybrid chamber being made up of housing and is positioned at the fluid collection device of air-flow hybrid chamber bottom, on housing, be respectively arranged with the gas entrance that is cooled being communicated with this air-flow hybrid chamber, the gas that is cooled outlet and cold gas entrance, be cooled and mix with cold gas and be cooled when gas flows in air-flow hybrid chamber, cold gas entrance is connected with cooling source of the gas by flow regulation device.Wherein, in the air-flow hybrid chamber of described hybrid air-cooling apparatus, preferably install one or be densely covered with the mixed gas homogenizing plate of breather hole along at least two of air flow line interval, described mixed gas homogenizing plate is cooled between gas entrance and the gas that is cooled outlet hybrid air-cooling apparatus.As above, mixed gas homogenizing plate can be funnel-shaped structure, and its cone angle place, bottom has leakage fluid dram.Above-mentioned hybrid air-cooling apparatus of the present invention not can only be used for dry distillation gas dry cleaning and recovering process, certain occasion that also can be used for other gas cooling and reclaim phlegma.This hybrid air-cooling apparatus has overcome current spraying cooling and has produced the problem of a large amount of waste water, and is convenient to the temperature of the gas that is cooled to carry out fast, accurately control.
To partly provide in the following description below in conjunction with the drawings and specific embodiments aspect that the present invention is described further, the present invention is additional and advantage, part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of dry distillation gas dry cleaning and recovering process embodiment of the present invention.
Fig. 2 is a kind of concrete structure schematic diagram of hybrid air-cooling apparatus in the present invention.
Embodiment
Shown in Fig. 1, be specially an oil-sand dry distillation gas dry cleaning and recovering process.As Fig. 1, the equipment that this oil-sand dry distillation gas dry cleaning and recovering process uses comprises successively:
<1> adopts the high temperature air filtration device 100 of sintered porous membrane cartridge 110, and this high temperature air filtration device 100 is with filter device back-blowing device 120;
<2> recuperative heat exchanger 200, specifically adopts waste heat boiler;
<3> the first refrigerating unit 300, it is a hybrid air-cooling apparatus, this device comprises the air-flow hybrid chamber 320 being made up of housing 310 and is positioned at the fluid collection device 330 of air-flow hybrid chamber 320 bottoms, on housing 310, be respectively arranged with the gas entrance that is cooled being communicated with this air-flow hybrid chamber 320, the gas that is cooled outlet and cold gas entrance, wherein, the described gas entrance that is cooled is positioned at the lower side of housing 310, the gas that is cooled outlet is positioned at the upper lateral part of housing 310, cold gas entrance is positioned at housing 310 tops and connects a scatterer, gas 810(coal gas is cooled) motion from bottom to top from the gas entrance that is cooled enters air-flow hybrid chamber 320, cold gas 820(is from liquid nitrogen source or natural gas liquids source) from scatterer ejection downwards motion from top to bottom, when the gas 810 that is cooled upwards flows in air-flow hybrid chamber 320 and cold gas 820 adverse current mixed heat transfers and being cooled, cold gas entrance is connected with cooling source of the gas by flow regulation device, two blocks of mixed gas homogenizing plates 340 that are densely covered with breather hole along air flow line interval are also installed in the air-flow hybrid chamber 320 of hybrid air-cooling apparatus, described mixed gas homogenizing plate 340 is cooled between gas entrance and the gas that is cooled outlet hybrid air-cooling apparatus, wherein a mixed gas homogenizing plate 340 is near scatterer, another mixed gas homogenizing plate 340 is near being cooled gas entrance, it between two blocks of mixed gas homogenizing plates 340, is main mixed gas heat exchange region,
<4> electrical tar precipitator 400;
<5> blower fan 500;
<6> the second refrigerating unit 600, this second refrigerating unit 600 is recuperative heat exchanger.
Above-mentioned high temperature air filtration device 100, recuperative heat exchanger 200, the first refrigerating unit 300, electrical tar precipitator 400, blower fan 500 and the second refrigerating unit 600 are linked in sequence successively and form coal gas operation stream, wherein, the coal gas to be recycled that blower fan 500 is system entry provides the power in operational process, on recuperative heat exchanger 200, be provided with such as T-valve of an import shifter 710(for the ingress of carrying out the heat transferring medium of heat exchange with coal gas), can make first medium and second medium select one enters in recuperative heat exchanger 200 and carries out heat exchange with coal gas, the outlet of heat transferring medium goes out to be provided with such as T-valve of an outlet shifter 720(), wherein branch's stream of outlet shifter 720 is connected with filtration unit back-blowing device 120, external other use sources of another branch's stream.
Above-mentioned oil-sand dry distillation gas dry cleaning and recovering process is specially: first, the temperature of discharging from gas retort is that the coal gas of 700-800 ℃ enters and high temperature air filtration device 100, carries out dust removal by filtration purification, thereby the dust content that makes to export in coal gas is controlled at 20mg/Nm
3below; Coal gas after udst separation imports recuperative heat exchanger 200 again and carries out high-temperature residual heat recycling, thereby gas temperature is reduced to 500-550 ℃; And then the coal gas that recuperative heat exchanger 200 is discharged imports the first refrigerating unit 300, the cold gas that this first refrigerating unit 300 uses is from liquid nitrogen source or natural gas liquids source, usage quantity remains on 240-250 ℃ with the gas temperature that the first refrigerating unit 300 is exported and determines (specifically can automatically control the flow regulation device of cold gas entrance by temperature sensor), the tar that coal gas is separated out specific boiling spread after non-spraying cooling in the first refrigerating unit 300, tar concentrates in fluid collection device 330 and flows out and reclaim from fluid collection device 330 as required; The coal gas that the first refrigerating unit 300 is discharged directly imports electrical tar precipitator 400 decoking mist of oils, and then the coal gas that electrical tar precipitator 400 is discharged imports the second refrigerating unit 600 through described blower fan 500 again, coal gas is separated out light oil after non-spraying cooling in the second refrigerating unit 600, light oil flows out and reclaims from this device, and tail gas (30-50 ℃) enters subsequent disposal (can send into point of ignition and make fuel).
In above-mentioned technological process, need interval operation filtration unit back-blowing device 120 to carry out blowback to sintered porous membrane cartridge 110, at this moment, by the control of import shifter 710, described first medium (being specially nitrogen) is entered after recuperative heat exchanger 200 heating under the control of outlet shifter 720 as the blowback air of the filtration unit 100 filtration unit back-blowing device 120 that leads again, after blowback finishes, make described second medium (being specially water) enter other use sources of leading except filtration unit back-blowing device 120 again after recuperative heat exchanger 200 heating under the control of outlet shifter 720 by the control of import shifter 710.
Two blocks of mixed gas homogenizing plates 340 that are densely covered with breather hole along air flow line interval are installed in the air-flow hybrid chamber 320 of above-mentioned hybrid air-cooling apparatus, it between two blocks of mixed gas homogenizing plates 340, is main mixed gas heat exchange region, like this, gas 810(coal gas is cooled) by mixed gas homogenizing plate 340 on the lower carry out entering this mixed gas heat exchange region after homogenizing and with the cold gas 820(that is undertaken entering after homogenizing by top mixed gas homogenizing plate 340 from liquid nitrogen source or natural gas liquids source) evenly, fully mix, the contact heat-exchanging effect of guaranteed to be preferably cooled gas and cold gas.
Fig. 2 is the further improvement to above-mentioned hybrid air-cooling apparatus, be about to mixed gas homogenizing plate 340 and be all arranged to funnel-shaped structure, its cone angle place, bottom has leakage fluid dram 341, thereby the fluid nature of being convenient to adhere to mixed gas homogenizing plate 340 flows to oil discharge outlet 341, then flow out from oil discharge outlet 341, thereby prevent that mixed gas homogenizing plate from adhering to too much tar and stopping up.
In addition, the mixed gas homogenizing plate 340 in above-mentioned hybrid air-cooling apparatus also can be improved to a sandwich structure, comprises top plate, lower plywood, between top plate and lower plywood, keep at a certain distance away, and the breather hole staggered arrangement on breather hole and lower plywood on top plate.Like this, the mobile passage of between top plate and lower plywood, formation air-flow being transferred, promotes fluid to separate.
Claims (10)
1. dry distillation gas dry cleaning and recovering process, its step comprises:
1) the high temperature carbonization coal gas of Industrial Stoves being discharged carries out dry gas cleaning purification, makes the dust content in coal gas be controlled at 20-50mg/Nm
3below;
2) coal gas after udst separation is imported to the first refrigerating unit (300), make coal gas after non-spraying cooling, separate out tar in the first refrigerating unit (300), tar flows out and reclaims from this device;
3) coal gas after the cooling of the first refrigerating unit (300) being discharged imports the second refrigerating unit (600), makes coal gas after non-spraying cooling, separate out light oil in the second refrigerating unit (600), and light oil flows out and reclaims from this device, and tail gas enters subsequent disposal;
In described the first refrigerating unit (300) and the second refrigerating unit (600), at least the first refrigerating unit (300) is hybrid air-cooling apparatus, and this hybrid air-cooling apparatus is by mixing coal gas and make coal gas cooling rapidly with cold gas;
Described hybrid air-cooling apparatus comprises the air-flow hybrid chamber (320) being made up of housing (310) and is positioned at the fluid collection device (330) of air-flow hybrid chamber (320) bottom, on housing (310), be respectively arranged with the gas entrance that is cooled being communicated with this air-flow hybrid chamber (320), the gas that is cooled outlet and cold gas entrance, be cooled and mix and be cooled with cold gas (820) when gas (810) flows in air-flow hybrid chamber (320), cold gas entrance is connected with cooling source of the gas by flow regulation device.
2. dry distillation gas dry cleaning and recovering process as claimed in claim 1, it is characterized in that: in described step 1) and step 2) between also comprise the first additional step, import a recuperative heat exchanger (200) by the coal gas after udst separation and carry out high-temperature residual heat recycling, and then the coal gas that recuperative heat exchanger (200) is discharged imports the first refrigerating unit (300).
3. dry distillation gas dry cleaning and recovering process as claimed in claim 2, is characterized in that: described step 1) is that the high temperature air filtration device (100) by adopting sintered porous membrane cartridge (110) carries out dry gas cleaning purification to coal gas; ?
The heat transferring medium that carries out heat exchange by described recuperative heat exchanger (200) and coal gas comprises first medium and second medium, described first medium and second medium are selected one and are entered in recuperative heat exchanger (200) and carry out heat exchange with coal gas under the control of import shifter (710), after described first medium enters recuperative heat exchanger (200) heating again under the control of outlet shifter (720) as the blowback air of filtration unit (100) and the filtration unit back-blowing device (120) that leads, when described second medium enters other use sources of leading except filtration unit back-blowing device (120) under the control of outlet shifter (720) again after recuperative heat exchanger (200) heating.
4. dry distillation gas dry cleaning and recovering process as claimed in claim 1, it is characterized in that: in this technique, the motion of gas is driven by the blower fan (500) being positioned between the first refrigerating unit (300) and the second refrigerating unit (600), in described step 2) and step 3) between also comprise the second additional step, the coal gas that is about to the first refrigerating unit (300) discharge directly imports an electrical tar precipitator (400) decoking mist of oil, and then the coal gas that electrical tar precipitator (400) is discharged passes through described blower fan (500) importing the second refrigerating unit (600) again.
5. dry distillation gas dry cleaning and recovering process as claimed in claim 1, is characterized in that: described the second refrigerating unit (600) adopts recuperative heat exchanger.
6. the dry distillation gas dry cleaning and recovering process as described in any one claim in claim 1 to 5, it is characterized in that: in the air-flow hybrid chamber (320) of described hybrid air-cooling apparatus, be provided with one or be densely covered with the mixed gas homogenizing plate (340) of breather hole along at least two of air flow line interval, described mixed gas homogenizing plate (340) is cooled between gas entrance and the gas that is cooled outlet hybrid air-cooling apparatus.
7. dry distillation gas dry cleaning and recovering process as claimed in claim 6, is characterized in that: described mixed gas homogenizing plate (340) is funnel-shaped structure, and its cone angle place, bottom has oil discharge outlet (341).
8. the dry distillation gas dry cleaning and recovering process as described in any one claim in claim 1 to 5, is characterized in that: the cold gas that described hybrid air-cooling apparatus uses is from liquid nitrogen source or natural gas liquids source.
9. hybrid air-cooling apparatus, comprise the air-flow hybrid chamber (320) being formed by housing (310) and be positioned at the fluid collection device (330) of air-flow hybrid chamber (320) bottom, on housing (310), be respectively arranged with the gas entrance that is cooled being communicated with this air-flow hybrid chamber (320), the gas that is cooled outlet and cold gas entrance, be cooled and mix with cold gas and be cooled when gas flows in air-flow hybrid chamber (320), cold gas entrance is connected with cooling source of the gas by flow regulation device; In the air-flow hybrid chamber (320) of described hybrid air-cooling apparatus, be provided with one or be densely covered with the mixed gas homogenizing plate (340) of breather hole along at least two of air flow line interval, described mixed gas homogenizing plate (340) is cooled between gas entrance and the gas that is cooled outlet hybrid air-cooling apparatus.
10. hybrid air-cooling apparatus as claimed in claim 9, is characterized in that: described mixed gas homogenizing plate (340) is funnel-shaped structure, and its cone angle place, bottom has leakage fluid dram (341).
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Cited By (1)
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| CN104893762A (en) * | 2015-06-15 | 2015-09-09 | 林兆晟 | Raw gas ash handling system |
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| CN201020347Y (en) * | 2007-04-13 | 2008-02-13 | 启东市天宇石化冶金设备有限公司 | Highly effective gas mixer |
| US20090064581A1 (en) * | 2007-09-12 | 2009-03-12 | General Electric Company | Plasma-assisted waste gasification system |
| CN101451173A (en) * | 2007-11-28 | 2009-06-10 | 中冶赛迪工程技术股份有限公司 | Converter gas dry method pocket type purification and recovery process and system |
| CN102260539A (en) * | 2011-07-01 | 2011-11-30 | 中冶赛迪工程技术股份有限公司 | COREX shaft furnace gas dry process cloth bag dust removal and energy recycling method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020347Y (en) * | 2007-04-13 | 2008-02-13 | 启东市天宇石化冶金设备有限公司 | Highly effective gas mixer |
| US20090064581A1 (en) * | 2007-09-12 | 2009-03-12 | General Electric Company | Plasma-assisted waste gasification system |
| CN101451173A (en) * | 2007-11-28 | 2009-06-10 | 中冶赛迪工程技术股份有限公司 | Converter gas dry method pocket type purification and recovery process and system |
| CN102260539A (en) * | 2011-07-01 | 2011-11-30 | 中冶赛迪工程技术股份有限公司 | COREX shaft furnace gas dry process cloth bag dust removal and energy recycling method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104893762A (en) * | 2015-06-15 | 2015-09-09 | 林兆晟 | Raw gas ash handling system |
| CN104893762B (en) * | 2015-06-15 | 2017-07-14 | 林兆晟 | Raw gas ash disposal system |
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