EP2110631A1 - Drehofen mit Infrarotheizmitteln - Google Patents

Drehofen mit Infrarotheizmitteln Download PDF

Info

Publication number
EP2110631A1
EP2110631A1 EP08103528A EP08103528A EP2110631A1 EP 2110631 A1 EP2110631 A1 EP 2110631A1 EP 08103528 A EP08103528 A EP 08103528A EP 08103528 A EP08103528 A EP 08103528A EP 2110631 A1 EP2110631 A1 EP 2110631A1
Authority
EP
European Patent Office
Prior art keywords
rotary
rotary kiln
burner
vessel
air
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.)
Withdrawn
Application number
EP08103528A
Other languages
English (en)
French (fr)
Inventor
Ron Van Oudenallen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danieli Corus BV
Original Assignee
Danieli Corus BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Danieli Corus BV filed Critical Danieli Corus BV
Priority to EP08103528A priority Critical patent/EP2110631A1/de
Publication of EP2110631A1 publication Critical patent/EP2110631A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/10—Rotary-drum furnaces, i.e. horizontal or slightly inclined internally heated, e.g. by means of passages in the wall
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/30—Other processes in rotary ovens or retorts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/34—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D99/0035—Heating indirectly through a radiant surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/20—Rotary drum furnace
    • F23G2203/212—Sealing arrangements between rotary and stationary parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/28—Plastics or rubber like materials

Definitions

  • the invention relates to a rotary kiln comprising a rotary vessel with an upper and a lower end, support means to support the rotary vessel in an inclined position, drive means to rotate the rotary vessel, an inlet to introduce material in the rotary vessel, an outlet for the material from the kiln and heating means to heat material in the rotary vessel.
  • Such rotary kilns are known and are used for example for the treatment of materials under pyrolytical conditions such as for the processing of coal to char.
  • Other pyrolytical processes for which rotary kilns are used are known for example from the metallurgical industry, the cement industry and the processing of waste material.
  • the material looses its volatile and liquid components while the original product is being transformed into the final char.
  • the temperature used in the process and the processing time are the determining factors for the ratio of the resulting components.
  • rotary kilns which are provided with heating means inside the rotary vessel.
  • Such direct heating means comprise a burner that is positioned inside the rotary kiln.
  • this direct heating has the disadvantage that also the volatiles coming from the material that is processed are partially burned, mixed with the combustion gases coming from the burner and also mixed with the outside air introduced in the rotary vessel for the burner, finally resulting in volatiles that only have a very limited value if any at all.
  • a material such as coal with direct heating also part of the material is burned.
  • a rotary kiln comprising a rotary vessel with an upper and a lower end, support means to support the rotary vessel in an inclined position, drive means to rotate the rotary vessel, an inlet to introduce material in the rotary vessel, an outlet for the material from the kiln and heating means to heat material in the rotary vessel, wherein the heating means comprise infrared radiating means which are positioned inside the rotary vessel.
  • the material to be processed can be heated faster and more efficient than with heating means positioned outside the rotary vessel.
  • these external heating means the outside of the rotary vessel is heated, the heat having to pass from the vessel wall to the material to be processed.
  • a protective lining has been provided at the inside of the rotary vessel, the heat also have to pass the lining resulting in more heat losses and requiring an increased time before the needed process temperature is reached.
  • the radiated heat can be transferred directly to the material to be processed which further improves the efficiency of heating the material up to the desired temperature and keeping it at that temperature.
  • the time needed for the completion of the kiln process will be shorter than the time needed for the same process in a rotary kiln with conventional external heating means.
  • the rotary kiln with infrared heating means according the invention has the advantage that the processed material and also the volatiles resulting from the processed material will not in any way be included in the heat generating process of the heating means. Therefore, the process in the rotary kiln with infrared heating means according the invention is far more efficient than a similar process in a rotary kiln provided with an internal burner.
  • the heating means according to the invention comprise a supply for an air/gas mixture, a burner device to burn the air/gas mixture and an exhaust for the burned air/gas mixture.
  • a burner device to burn the air/gas mixture
  • an exhaust for the burned air/gas mixture Although burners for liquid fuels might be used, it is far more convenient to use a burner for an air/gas mixture.
  • the necessary amount of air and gas can be mixed in a suitable device independent from the rotary kiln and supplied to the burner at the required pressure.
  • the burner device comprises a chamber for the air/gas mixture to which the supply of the air/gas mixture is connected and which chamber is provided with a burner member to burn the air/gas mixture. It is also possible to use a burner device in which the supply of the air/gas mixture directly ends in a burner member, however, since the burner device has to supply heat to the material being processed over at least part of the length of the rotary vessel it is preferably provided that the supply connects to a chamber for the air/gas mixture so as to spread the air/gas mixture with a uniform pressure over the entire burner device. To that end it is preferably also provided that the air/gas mixture is supplied to the chamber for the air/gas mixture at more than one inlet.
  • the burner member comprises a ceramic burner element.
  • a ceramic burner element could be a ceramic burner plate or a ceramic foam burner plate. The choice being dependent on the amount and pressure of the air/gas mixture needed to generate the required amount of infrared radiation.
  • the chamber for the air/gas mixture is divided in separate chambers that each have their one supply of an air/gas mixture and that each have their own ceramic burner element to generate the required infrared radiation at that specific position in the rotary vessel.
  • the off gases of the burner device are preferably kept separated from the process in the rotary kiln it is provided according to a further embodiment that the burner device is enclosed by a burner housing which housing is provided with a face which allows infrared radiation to pass. With this burner housing the off gases of the burner can easily be removed from the burner housing by further providing an exhaust that leads to outside the rotary kiln.
  • a side or face of the burner housing is provided with a suitable material for that purpose.
  • the suitable material consists of a heat resistant glass.
  • a support member which supports the burner device independent of the rotary vessel.
  • the support member has to be independent from the rotary vessel since the material to be heated will always be in a certain area at a lower zone in the rotary vessel and consequently the infrared radiated heat should be directed at that area. Since the burner device extends over the largest part of the length of the rotary vessel the support member provided is suitable to support the burner device over such a length.
  • the support member for the burner device is an at least partly hollow beam or tube provided with one or more branches that connect to the chamber for the air/gas mixture and is used for the supply of the air/gas mixture to the burner.
  • the support member has a first and a second part, wherein in the first part is used for the supply of the air/gas mixture to the burner device and the second part is used as an exhaust for the burner housing.
  • the second part of the support member is connected to the burner housing which can be done with a single opening or a single branch or a number of openings or a number of branches.
  • the second part can be a small part of the support member separated from the other part by means of a division plate transverse to the length of the support member or it can be a part over a larger part or the whole length of the support member with a divisional plate in the length direction of the support member.
  • the exhaust can leave the rotary kiln at the same side as where the supply of the air/gas mixture enters the rotary kiln.
  • part of the support member is inside the burner housing supporting the burner housing directly and/or indirectly.
  • the burner housing can be connected to the support member or to the burner device or to both the support member and the burner device.
  • the advantage of having the support member inside the burner housing is that the connection of the supply for the air/gas mixture to the burner device is easier to realize, that is that a supply branch or branches do not have to pass first the burner housing before connecting to the burner device or the chamber for the air/gas mixture of the burner device. Also the exhaust for the off gases of the burner can be realized more easily.
  • the rotary kiln is provided with a stationary upper end member and a stationary lower end member that respectively close off the upper and lower end of the rotary vessel. According to a preferred embodiment these end member are used to support the support member for the burner device.
  • the advantage of supporting the support member for the burner device at both sides of the rotary vessel is that the support member does not need to be a heavy cantilevered support construction. With this construction means are provided at both end members to compensate for the thermal expansion of the support member itself and for the differences between thermal expansion of the support member and the end members.
  • a labyrinth seal is provided between the upper end member and the rotary vessel and/or between the lower end member and the rotary vessel.
  • a good seal is essential.
  • a labyrinth seal is used with sealing parts attached to end member and rotary vessel wherein the sealing parts are not in direct contact with each other.
  • one ore more inlets are provided in at least one of the end members to introduce gas under pressure in the labyrinth seal, wherein the pressure of the introduced gas is higher than the pressure inside the rotary vessel when in operation.
  • the rotary kiln according to the invention is very well suited for processing coal, wherein the volatile components in the coal are removed by means of the infrared heating of the coal during the transport and mixing thereof in the rotary vessel.
  • the rotary kiln according to the invention as described above can also be used to realise other processes or chemical conversions under pyrolytical conditions. Chemical reactions at elevated to high temperatures, phase transitions and separations at high temperatures for almost all types of material are also possible using the rotary kiln according to the invention.
  • a reducing agent can be used to create high conversion rates under suitable conditions, which can be adapted for each process.
  • metal oxides examples include iron oxides (such as in iron ores or in concentrates, or in iron oxides containing residues) to produce iron or steel, arsenic oxide concentrates, or lead oxide-containing ores (or lead oxide containing concentrates or wastes), which can be reduced to arsenic or lead.
  • iron oxides such as in iron ores or in concentrates, or in iron oxides containing residues
  • arsenic oxide concentrates or lead oxide-containing ores (or lead oxide containing concentrates or wastes)
  • lead oxide-containing ores or lead oxide containing concentrates or wastes
  • aluminium, zinc or copper oxides can be converted to aluminium, zinc or copper.
  • all metal oxides can be converted to metals, if necessary or useful in the presence of appropriate reducing agents.
  • Reducing agents that can be used to get attractive conversions are carbon-containing materials such as coal, char, coke, polymers, residues or carbon containing other materials.
  • the rotary kiln according to the invention might also be useable in the processing of tar and/or oils to produce petrols, diesel fuels or other transport fuels, and/or other chemicals.
  • Tar and heavy oil are products that are for instance residues in the petrochemical industry. At the moment these residues have to be cracked at high temperatures to form useful products.
  • the pyrolysis of tar and heavy oil with the rotary kiln according to the invention results in the fast and relatively cheap forming of the desired products.
  • These products can be petrol, diesel fuel and/ or chemicals such as fenolates, naftalenes, methyl naftalenes, anthracenes, creosote oil, soft pitch, hard pitch, impregnation pitch, anode pitch and graphite pitch.
  • the rotary kiln according to the invention can moreover be used for treating wastes such as certain tyres or plastic residues to produce oil and gas.
  • the rotary kiln according to the invention is very well suited for the mild pyrolysis of wastes, which will result in for instance 70% oil, 15% gases and 15% char-like residue.
  • the rotary kiln according to the invention also provides a working technology for the treatment of used tyres under pyrolytical conditions.
  • several types of wastes can be converted into usable products like gasses and oil using the rotary kiln according to the invention.
  • Treatment of biomass under pyrolytical conditions can be used to convert the biomass into oils and gas (and minerals in the form of a char like material).
  • the oils can be transport fuels such as biodiesel.
  • the rotary kiln according to the invention is very efficient for this conversion due to its good heat transfer properties.
  • the energy production with the rotary kiln according to the invention can help to reduce the CO 2 emission that causes heating of the earth.
  • Fig.1 shows a rotary kiln 1 comprising a rotary vessel 2 with stationary upper end member 3 and stationary lower end member 4.
  • the driving means with which the rotary vessel 2 is driven are not shown, but are of a known construction such as one or more drive wheels against the outside of rotary vessel 2 or a drive gear engaging a gear ring on the outside of the rotary vessel 2. With a number of drive wheels or drive gears the drive means can also be used to keep rotary vessel 2 in position.
  • the rotary vessel 2 is inclined at a small angle so that material to be processed in the rotary kiln 1 will move by the rotation of the rotary vessel from the upper part to the lower part of the rotary vessel, which in the drawing is from the left to the right.
  • infrared heating means 5 are provided that are supported by support member 6.
  • the support member 6 itself is supported by upper end member 3 and lower end member 4.
  • the part of the support member extending from upper end member 3 is used as the inlet 7 for the supply of the air/gas mixture for the burner device 16, see fig. 2 , of the infrared heating means 5.
  • Another part of support member 6 is used for the exhaust of off gases coming from the burner device of the infrared heating means 5 and leaving rotary kiln 1 through exhaust outlet 8.
  • an inlet 9 is provided for the introduction of material 10 in the rotary vessel 2.
  • the material 10 is introduced in measured portions, which is preferably done by using a volumetric feeder to allow a good control of the process in the rotary kiln 1.
  • the inlet 9 preferably extends over a distance into the rotary vessel 2 so as to prevent that any material ends up between the rotary vessel 2 and the upper end member 3. If any material would end up between the rotary vessel 2 and the upper end member 3 not only these parts could be damaged but surely also the labyrinth seal 14.
  • the lower end member 4 is provided with an exhaust 11 for the volatiles, gasses resulting from the processing of material 10 in rotary kiln 1 and an outlet 12 for the processed material.
  • the volatiles, gases coming from the process are cleaned and the gases that can be used for the air/gas mixture are fed to the device in which the right air/gas mixture is made for burner device 16.
  • the heat of the volatiles, gases can be used to preheat the material 10 that is to be processed in the rotary kiln 1.
  • the rotary vessel 2 and the end members 3,4 are provided at the inside with refractory material 13.
  • the refractory material 13 provides that the heat inside the rotary kiln is not easily lost to the environment outside the rotary kiln 1 and also prevents damage to the wall of the rotary vessel 2.
  • seals 14 are provided between the end members 3, 4 and the outside wall of rotary vessel 2 to prevent that the volatiles and gases resulting from the process in the rotary kiln 1 come into the outside environment, but also to prevent that outside air comes into the process in the rotary kiln.
  • Fig. 2 shows a cross section through infrared heating means 5.
  • the support member 6 is used for the supply of the air/gas mixture and is connected by means of one or more branches 15 to burner device 16.
  • the burner device 16 comprises an air/gas mixture chamber 17 with a burner member 18, which preferably is a ceramic foam burner member.
  • a metal grid 19 is provided for the support of burner member 18.
  • An ignition device 20 is mounted against burner member 18 or metal grid 19 to be able to ignite the air/gas mixture in an easy manner.
  • the pressure of the air/gas mixture is regulated such that the flame of the burning air/gas mixture stabilizes on the surface of the ceramic burner member 18.
  • the ceramic surface is heated by the flame as a result of which the ceramic burner member will start emitting infrared radiation.
  • a burner housing 21 is provided enclosing the burner device 16 completely.
  • the burner housing 21 is supported by support member 6 and is also directly connected to burner device 16 by connecting members 22.
  • At the bottom side the burner housing 21 is provided with heat resistant glass plate 23 which let pass the infrared radiation coming from burner device 16.
  • Fig. 3 shows a cross section of labyrinth seal 14 on enlarged scale with a first part 24 that is attached to the inside of end member 4 and a second part 25 that is attached to the outside of rotary vessel 2.
  • Both parts 24, 25 of the labyrinth seal comprise a number of parallel, closely spaced discs 26, 27.
  • the spacing is such that any expansion of rotary vessel and/or end member or tolerances in the positioning of the rotary vessel can be compensated for without the discs touching each other, an end member 3, 4 or rotary vessel 2. Since the discs 26, 27 of labyrinth seals 14 are not in contact with each other, end members 3, 4 or rotary vessel 2, these discs practically have no wear as a consequence of which the labyrinth seals 14 will have a long stand time.
  • nitrogen gas or any other suitable gas is injected in the labyrinth seal 14.
  • the nitrogen gas is injected at a pressure higher than the pressure inside the rotary vessel when in operation and also higher than the environmental pressure.
  • the injected nitrogen gas travels along the discs 26, 27 to the interior of the rotary vessel as well as to the outside, therewith preventing that volatiles/gases travel from the rotary vessel 2 to the outside or that oxygen from the outside enters the rotary vessel 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
EP08103528A 2008-04-14 2008-04-14 Drehofen mit Infrarotheizmitteln Withdrawn EP2110631A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08103528A EP2110631A1 (de) 2008-04-14 2008-04-14 Drehofen mit Infrarotheizmitteln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08103528A EP2110631A1 (de) 2008-04-14 2008-04-14 Drehofen mit Infrarotheizmitteln

Publications (1)

Publication Number Publication Date
EP2110631A1 true EP2110631A1 (de) 2009-10-21

Family

ID=39671485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08103528A Withdrawn EP2110631A1 (de) 2008-04-14 2008-04-14 Drehofen mit Infrarotheizmitteln

Country Status (1)

Country Link
EP (1) EP2110631A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673586A (zh) * 2013-12-24 2014-03-26 中南大学 一种回转式烧结炉
WO2013054334A3 (en) * 2011-10-12 2014-08-28 Turlapati Raghavendra Rao Rotary reactor drum vaporizer
CN107356107A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种新型回转圆筒式加热炉
CN107356111A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种节能环保的简易回转圆筒式加热炉
CN107356104A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种燃气加热的回转圆筒式加热炉
CN107356103A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种便于精准控温的燃气加热回转圆筒式加热炉
KR20220020384A (ko) * 2020-04-01 2022-02-18 허난 롱청 코울 하이 이피션시 테크놀로지 어플리케이션 컴퍼니., 리미티드 로터리 킬른 밀봉 시스템 및 로터리 킬른 설비
CN115198114A (zh) * 2022-08-17 2022-10-18 中冶长天国际工程有限责任公司 一种从铜冶炼烟灰中回收单质砷的系统及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601269A1 (de) * 1992-12-09 1994-06-15 Nkk Corporation Verbrennungsvorrichtung mit Wärmerückführung
JP2003313559A (ja) * 2002-04-19 2003-11-06 Takumi Kaneshige ロータリーキルン型式の炭化焼成方法及び装置
JP2005090796A (ja) * 2003-09-12 2005-04-07 Fuji Electric Holdings Co Ltd 回転式加熱炉
US7087140B1 (en) * 2001-09-10 2006-08-08 Menian Harry H Carbonizing waste processing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0601269A1 (de) * 1992-12-09 1994-06-15 Nkk Corporation Verbrennungsvorrichtung mit Wärmerückführung
US7087140B1 (en) * 2001-09-10 2006-08-08 Menian Harry H Carbonizing waste processing apparatus
JP2003313559A (ja) * 2002-04-19 2003-11-06 Takumi Kaneshige ロータリーキルン型式の炭化焼成方法及び装置
JP2005090796A (ja) * 2003-09-12 2005-04-07 Fuji Electric Holdings Co Ltd 回転式加熱炉

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013054334A3 (en) * 2011-10-12 2014-08-28 Turlapati Raghavendra Rao Rotary reactor drum vaporizer
CN103673586A (zh) * 2013-12-24 2014-03-26 中南大学 一种回转式烧结炉
CN103673586B (zh) * 2013-12-24 2015-03-04 中南大学 一种回转式烧结炉
CN107356103A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种便于精准控温的燃气加热回转圆筒式加热炉
CN107356111A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种节能环保的简易回转圆筒式加热炉
CN107356104A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种燃气加热的回转圆筒式加热炉
CN107356107A (zh) * 2016-12-06 2017-11-17 中国科学院大连化学物理研究所 一种新型回转圆筒式加热炉
KR20220020384A (ko) * 2020-04-01 2022-02-18 허난 롱청 코울 하이 이피션시 테크놀로지 어플리케이션 컴퍼니., 리미티드 로터리 킬른 밀봉 시스템 및 로터리 킬른 설비
JP2022533164A (ja) * 2020-04-01 2022-07-21 河南竜成煤高効技術応用有限公司 回転窯シールシステム及び回転窯設備
EP3951300A4 (de) * 2020-04-01 2022-10-12 Henan Longcheng Coal High Efficiency Technology Application Co., Ltd. Drehrohrofendichtungssystem und drehrohrofenanlage
AU2020440028B2 (en) * 2020-04-01 2023-03-02 Henan Longcheng Coal High Efficiency Technology Application Co., Ltd. Rotary kiln sealing system and rotary kiln equipment
KR102652304B1 (ko) 2020-04-01 2024-03-27 허난 롱청 코울 하이 이피션시 테크놀로지 어플리케이션 컴퍼니., 리미티드 로터리 킬른 밀봉 시스템 및 로터리 킬른 설비
CN115198114A (zh) * 2022-08-17 2022-10-18 中冶长天国际工程有限责任公司 一种从铜冶炼烟灰中回收单质砷的系统及其使用方法
CN115198114B (zh) * 2022-08-17 2024-02-13 中冶长天国际工程有限责任公司 一种从铜冶炼烟灰中回收单质砷的系统及其使用方法

Similar Documents

Publication Publication Date Title
EP2110631A1 (de) Drehofen mit Infrarotheizmitteln
CA1075003A (en) Process and apparatus for the production of combustible gas
RU2086869C1 (ru) Способ непрерывного предварительного нагрева шихтовых материалов для сталеплавильной печи и установка для его осуществления
EP1756502B1 (de) Verfahren und vorrichtung zur verbrennung von brennbarem abfall
CN105546546B (zh) 一种无害化免分类固体废弃物裂解设备及裂解方法
RU2482160C1 (ru) Способ термической переработки органического сырья и устройство для его осуществления
CA2222819C (en) Method and device for producing and utilizing gas from waste materials
WO2013106004A1 (en) Multi-ring plasma pyrolysis chamber
JP5789883B2 (ja) 部分還元鉄製造方法および部分還元鉄製造装置
JP5877071B2 (ja) 部分還元鉄製造装置および部分還元鉄製造方法
CN101660866A (zh) 用于处理金属氧化物材料的转底炉
RU2646917C1 (ru) Способ термохимической конверсии органосодержащего сырья и комплекс термохимической конверсии, включающий реактор косвенного нагрева, для его осуществления
MXPA06012084A (es) Metodo y aparato para gasificar llantas de automovil de desecho a fin de producir carbono solido de alta calidad y gas de sintesis no condensable.
US7194962B2 (en) Versatile rapid thermal process oven
CN1312863A (zh) 含油和铁氧化物的残余物的热处理方法
CN1128231C (zh) 在多级炉中直接还原铁的制造工艺
CN104694138A (zh) 一种混合式加热设备及其应用
RU2477819C2 (ru) Роторная печь для пиролиза твердых бытовых отходов
CA2149188A1 (en) Process for the thermal production of energy from waste material, particularly refuse
RU2553116C1 (ru) Способ получения металлургического кокса
JP3713991B2 (ja) 廃棄物処理方法および廃棄物処理設備
RU2616079C1 (ru) Способ и устройство для плазменной газификации твёрдого углеродсодержащего материала и получения синтез-газа
ZA200102128B (en) Method for producing directly reduced metal in a multi-tiered furnace.
RU2270848C2 (ru) Вертикальная печь для получения активного угля
RU2322347C1 (ru) Способ и устройство утилизации неразделанных шин

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100422