CN1038942C - The process and apparatus heating subzero-roll - Google Patents
The process and apparatus heating subzero-roll Download PDFInfo
- Publication number
- CN1038942C CN1038942C CN93103173A CN93103173A CN1038942C CN 1038942 C CN1038942 C CN 1038942C CN 93103173 A CN93103173 A CN 93103173A CN 93103173 A CN93103173 A CN 93103173A CN 1038942 C CN1038942 C CN 1038942C
- Authority
- CN
- China
- Prior art keywords
- gas
- combustion
- low
- combustion chamber
- shunting
- 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 - Fee Related
Links
Classifications
-
- 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
- C10B21/00—Heating of coke ovens with combustible gases
-
- 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
- C10B1/00—Retorts
- C10B1/10—Rotary retorts
-
- 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
-
- 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
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Air Supply (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Drying Of Solid Materials (AREA)
Abstract
To heat a drum (4) designed to generate low-temperature distillation gases (s), a heating gas (g) which passes round a heating-gas circuit (70, 72) is used. In order to enable the distillation plant (1) to be operated particularly efficiently, and also autonomously, the invention calls for the heating gas (g) to be produced by burning a part (t1) of the distillation gases (s). In a distillation/combustion plant, in particular a combustion plant (2) retrofitted with a distillation plant (1), the remainder (t2) of the distillation gases (s) produced is fed to the combustion chamber (34) of the combustion plant (2).
Description
The present invention relates to heating subzero-roll to generate the method for low-temperature pyrolysis gas, this method has been utilized mobile combustion gas in gas circuit.The invention further relates to the device of finishing this method and relate to low-temperature burning device according to this method work.
The low-temperature pyrolysis that refuse is carried out is an endothermic process at low temperatures.The heat that reacts required is defeated by refuse indirectly by the heating face of heat exchanger, and heating face is arranged to be arranged in the tube shaped of rotary kiln or cylinder wall.
In European patent specification 0340537 disclosed refuse heat treating method, with mobile combustion gas input cylinder in the gas circuit.Gas circuit comprises that one is in according to the heat exchanger in the low-temperature burning device of this method work, and heat exchanger is arranged on the next door, combustion chamber of combustion unit and absorbs the heat energy of hot flue gas at this.Cryogenic unit in fact always turns round together with combustion unit, and the cryogenic gas that is formed by steam burns in combustion unit.
The cryogenic unit of a kind of dead front type running oneself by Kalt.J.Thome-Kozmiensky at publication " the heat energy high temperature of refuse divide can ", the energy and environmental technology GmbH EF-press, 1985, open in the text on 97-120 page or leaf, particularly 101 pages accompanying drawing 2 and 103 pages.In the device that oneself knows, formed whole cryogenic gases are converted into Purge gas in the interchanger that has the subsequent wash passage.The part of Purge gas is burnt in burner.The combustion gas of low temperature roller will also be used as in the wide-open loop of flue gas input that form thus.In general these methods are special wastes and uneconomic, especially need to use the Purge gas that is used to form combustion gas that can use in wideer economic field.
Task of the present invention is, provide a kind of with respect to oneself has technology the method for both economical heating subzero-roll.This method will realize that this device guarantees to provide the self-sufficient formula running of cryogenic unit required combustion gas by the device of further simplification.
With regard to method, task of the present invention is to solve like this, i.e. shunting by the burning cryogenic gas forms combustion gas.
In order to regulate the temperature of combustion gas, this method preferably makes from the low temperature roller outflow and so and the controlled combustion gas shunting of refrigerative is flowed back to low temperature roller and mixed once more in this combustion gas with heat a closed loop branch loop.
Advance to draw conveying under the low pressure that the cryogenic gas shunting is suitable for controlling in blast tube.This measure is the needs that form combustion gas in cryogenic gas shunting and the gas circuit on the one hand.Be to avoid that cryogenic gas or gas leaking under the environment of leakage loss are being arranged on the other hand.
The cryogenic gas shunting was preferably carried out dust removal process before burning.However still there is such possibility, promptly is deposited in the gas circuit, particularly in the low temperature roller at cryogenic unit run duration dust.Can reduce sedimentary dust amount by reducing the shunting of incendiary cryogenic gas.But can reducing with combustion gas, this brings heat in the low temperature roller into.
Heat in order to lack to the combustion gas input preferably is provided with this method like this, promptly preheating is at first carried out in effusive cold combustion gas from low temperature roller.
Then combustion gas and the shunting of incendiary cryogenic gas with preheating changes low temperature roller once more over to.Shunted from gas circuit before or after preheating from the effusive combustion gas shunting of low temperature roller.
The preheating of refrigerative combustion gas is to realize by carrying out suitable indirect exchange with steam.Therefore, the refrigerative combustion gas is suitable for dedusting before preheating.
About device, on this device, be provided with one in the wide-open heating circuit and cross over the low temperature roller that flows into and flow out pipeline, comprise a combustion chamber that forms combustion gas on the heating circuit, task of the present invention is to solve like this, promptly carries at low temperature to the combustion chamber and rolls the cryogenic gas shunting that forms in the letter.
One of combustion chamber serial connection is suitable for the isolating device of dust, preferably a whirlwind separator.
Be provided with a suitable gas barrier in order to form low pressure in gas circuit, this gas barrier is connected in the outflow pipeline of gas circuit.The outlet side of gas barrier can link to each other with the combustion chamber.
A kind of replenish or selectable mode be gas barrier outlet side be connected on the combustion chamber after mixing section be connected.The controlled shunting that makes the refrigerative combustion gas thus is preferably in the combustion chamber or be mixed into the combustion gas of heating in the mixing section that connects thereafter.
For preheating is carried out in the refrigerative combustion gas, a heat exchanger preferably is set when arrangement apparatus, heat exchanger is connected in series with the combustion chamber in gas circuit.
In addition, in the outflow pipeline of low temperature roller, be provided with the device that is used for the dust separation and is connected in series with heat exchanger.
In the low-temperature burning device that has the low temperature roller that generates cryogenic gas, preferably carry 20～50% of the own cryogenic gas shunting that generates, to generate the combustion gas that can be transported in the low temperature roller to first combustion chamber according to the inventive method work.The residue shunting of the cryogenic gas that oneself forms can be sent into second combustion chamber of combustion unit to produce steam.The steam that in the heat exchanger input combustion unit that in gas circuit, is connected in series, forms with first combustion chamber.The common bluebeard gets preheating by carrying out indirect heat exchange with steam to make the refrigerative combustion gas thus.
The advantage that the present invention brings shows especially, forms the required combustion gas of low-temperature pyrolysis by utilizing the cryogenic gas shunting, can make cryogenic unit with the economic especially autonomous running of mode.Therefore this cryogenic unit can insert the existing combustion unit or the portfire of installing after, wherein rolls simple residue cryogenic gas from low temperature and can burn in combustion unit with the surplus materials that is produced.Therefore, for example have according to oneself of EP-OS0340537 technology will have now the combustion chamber with laterally is connected or the cryogenic unit that installs the back between carry out necessity horizontal connection so that it is carried out required heating, do not have heat and mass transfer.
To be described in more detail embodiments of the invention with reference to the accompanying drawings below.This figure briefly describes a low-temperature burning device that has gas generator, and gas generator has a heat exchanger that connects on two alternative positions in gas circuit.
Shown low-temperature burning device comprises the cryogenic unit 1 that connects combustion unit 2 after having.Cryogenic unit 1 comprises low temperature roller 4, and this cylinder has the e Foerderanlage 6 of waste material a and the discharge chamber 8 that separates the cryogenic gas s that is generated from process jet flow stream disinfectant surplus materials r.In low temperature roller 4, there is not heating tube 10,, heating tube 10 is subjected to the gas shock of combustion gas g.On low temperature roller 4, be connected with and flow into pipeline 12 and flow out pipeline 14.Flow into pipeline 12 and be connected with mixing section 16, mixing section 16 is connected in series with combustion chamber 18.In flowing out pipeline 14, gas blower or suction unit 20 are housed.The article one that flows out pipeline 14 22 is connected with mixing section 16 along separate routes.The second that flows out pipeline 14 24 is connected with combustion chamber 18 along separate routes.In shunt 22 and 24, valve 23 or 25 are housed respectively.Discharge chamber 8 by pipeline 26 and dust separator 28 for example cyclonic separator link to each other.Device 28 is connected with combustion chamber 18 by pipeline 30.The outlet 27 of device 28 links to each other with the combustion chamber 34 of combustion unit 2 by pipeline 32.
Connect a waste heat boiler or a gas cooler 36 that has heating face 38 behind the combustion chamber 34.In flue gas pipeline 40, be connected to smoke eliminator 42 and another gas blower or suction unit 44.Flue gas pipeline 40 feeds the chimney (not shown).
The outflow pipeline 14 of low temperature roller 4 leads in the flue 40 in the zone between the waste heat boiler 36 and refining plant 42 by valve 46.The parallel shunt 43 that has a valve 45 terminates in the zone between the adjacent heating face 38 in the waste heat boiler 36.Flue gas pipeline 40 links to each other with shunt 22 of flowing out pipeline 14 or shunt 24 with valve 48 and 50 by pipeline 47.
Waste material a is by conveyer 52 input low temperature rollers 4.Make refuse a in low temperature roller 4, carry out heat energy or low-temperature pyrolysis by pipeline 10 by hot flue gas or combustion gas heating.The cryogenic gas s of Xing Chenging and disconnected from each other in discharge chamber 8 thus through gas injection disinfectant surplus materials γ.Surplus materials γ is by 54 outputs of reprocessing discharge port.Surplus materials γ can for example burn in the combustion chamber 34.Cryogenic gas s obtains rough decontamination effect improving by means of screen cloth or strainer 55 by fiber is separated with macrobead, and then by in pipeline 26 suction apparatus 28, cryogenic gas s has comprised big weight percent and has had little dust of big combustible material composition.
The opening 56 on the tangential inflow device of cryogenic gas s 28 tops; Opening 56 is the more long narrow slits that constitute with type that does not have at this to describe in detail and mode.Because action of centrifugal force, dust ion will be attached on the wall when departing from device 28, thereby make dust produce loss at centre portions.
Extract the 20-50% preferably few dirt shunting t of 30% cryogenic gas s by device 28 by a suction tube that is far longer than import 56 and extends 62 downwards
1, and its input is used for incendiary combustion chamber 18.
Can further reduce among the cryogenic gas s by means of difform suction tube 62 and to shunt t
1, dirt content.62 pairs of dust of for example long slit shape suction tube separate positive influence, because this structure can reduce inlet velocity and it is remained a constant speed.
The shunting t of the cryogenic gas s of process dedusting or dust loss
1To be used to produce combustion gas.And make the shunting t of cryogenic gas s
1In the combustion chamber in about 1250 ℃ temperature T
1Following burning.From low temperature roller 4 outflows with in about 250 ℃ temperature T
2In the heat exchanger 80 that ' following refrigerative combustion gas g at first connects on gas blower 20 outlet sides in flowing out pipeline 14 in about 360 ℃ of temperature T
2" carry out preheating down.Follow the shunting regulated t with preheated fuel gas g
3By 22 being input in the mixing section 16 along separate routes.In mixing section 16, shunt t
3Mix with combustion gas g from combustion chamber 18, therefore in the ingress of low temperature roller 4 mixing temperature T
3Be adjusted to about 520 ℃.The shunting t of the preheated fuel gas g that can regulate by means of valve 25
4Directly import combustion chamber 18.So at least a portion combustion gas g is by mixing section 16 and inflow pipeline 12 and also mobile in loop line 70 by the shunt 22,24 of flowing out pipeline 14 by heating tube 10 and heat exchanger 80.
The main flow or the inertia flow t that are used for cryogenic gas s in the device 28
2Discharge port 27 be positioned at equally on device 28 bottoms tangential.Focus on dust on the wall with inertia flow t
2Arrive combustion chamber 34 by pipeline 32 together.Meanwhile the sense of rotation of cryogenic gas s remains unchanged after inflow device 28 He before the bleeder 28.Device 28 bottom zone city 60 is tapers of center protrusion or parabola shaped, so can not form dust deposit at this Qu Chengshang.
The inertia flow t of cryogenic gas s
2The hot flue gas that produces in combustion chamber 34 during burning is used in the waste heat boiler 36 and produces steam.By install 28 and combustion chamber 34 and waste heat boiler 36 and refining plant 42 inertia flow from the cryogenic gas s of low temperature roller 4 of carrying finally send by gas barrier 44.
Form irrelevant combustion gas g by valve 46 inflow open loops 72 and with 34 effusive flue gases mixed from the combustion chamber with heated air before entering refining plant 42.Therefore, in refining plant 42 only the flue gas to perfect combustion purify.
To be used as the thermal barrier of heat exchanger 80 from the steam of waste heat boiler 36.Obtaining steam and steam is imported temperature in from the heating surface 38 of position A is about 390 ℃ heat exchanger 80.Flowing to temperature once more from heat exchanger 80 effusive cooling steams on the B of position is about 330 ℃ heating face 38.
For the further loss of the dust that makes combustion gas g, when the valve 23 and 25 on the gas blower 20 suction sides is in closing condition, flows into loop 72 and mix with flue gas before entering waste heat boiler 36 and mix with flue gas behind the outflow waste heat boiler 36 by valve 46 by valve 49 from the combustion gas g of low temperature roller 4.So only in device 42, just realized the purification of mixed gas.Make gas circuit 72 sealing by pipeline 47 and valve 48 and 50, wherein in pipeline 47, do not have heat exchanger 80 '.In this state from the outlet side of gas blower 44 extract clean flue gas and the heat exchanger 80 that is provided with at pipeline 47 ' this flue gas is carried out preheating.Then the flue gas with preheating mixes once more with combustion gas g.
The cryogenic unit 1 of this self-sufficient formula running is particularly suitable for the back erecting equipment that is made of combustion unit 2.Can fully independently connect by pipeline 32 thus.
Claims (13)
1. the method that the low-temperature pyrolysis cylinder that produces low-temperature pyrolysis gas (s) is heated is wherein utilized combustion gas (g), and this combustion gas (g) is by the shunting (t of burning cryogenic gas (s)
1) produce, it is characterized in that the controlled shunting (t of chilled combustion gas (g)
3, t
4) send low-temperature pyrolysis cylinder (4) back to and mix with combustion gas (g), wherein at first carry out preheating from the effusive cooling combustion gas of low-temperature pyrolysis cylinder (4) (g).
2. the described method of claim 1 is characterized in that, the shunting (t of transporting low temperature gas (s) under low pressure in gas circuit (70,72)
1).
3 claims 1 or 2 described methods is characterized in that, before burning to the shunting (t of cryogenic gas (s)
1) carry out dedusting.
4. the described method of claim 1 is characterized in that, carries out preheating by carrying out indirect heat exchange with steam to cooling off combustion gas (g).
5. the described method of claim 1 is characterized in that, before preheating dedusting is carried out in chilled combustion gas (g).
6. device that low-temperature pyrolysis cylinder (4) is heated, this low-temperature pyrolysis cylinder (4) is through person who lives in exile's pipeline (12) and flow out pipeline (14), be arranged in the gas circuit (70,72), wherein gas circuit (70,72) comprises a combustion chamber (18) that produces combustion gas (g), and can carry the shunting (t of the cryogenic gas (s) that produces in low-temperature pyrolysis cylinder (4) to combustion chamber (18)
1), it is characterized in that a heat exchanger (80,80 ') of connecting, be used for the chilled combustion gas of preheating (g) in burning loop (70,72) with combustion chamber (18) is arranged.
7. the described device of claim 6 is characterized in that, one of combustion chamber (18) series connection is used for dust separating device (28), and this installs preferably cyclonic separator.
8. claim 6 or 7 described devices is characterized in that, a gas barrier (20) is connected in the outflow pipeline (14) of gas circuit (70,72).
9. the described device of claim 8 is characterized in that, the outlet side of gas barrier (20) is connected with combustion chamber (18).
10. the described device of claim 8 is characterized in that, the outlet side of gas barrier (20) is connected with a mixing section (16) that is connected back, combustion chamber (18).
11. the described device of claim 6 is characterized in that, has one to connect, be used for dust separating device (82) with heat exchanger (80,80 ') in flowing out pipeline (14).
12. have the low-temperature burning device of the described device of claim 6, wherein inertia flow (the t of the cryogenic gas that is produced (s)
2) be sent to the combustion chamber (34) of combustion unit (2).
13. have the low-temperature burning device of the described device of claim 6, wherein the steam that produces in combustion unit (2) is sent to heat exchanger (80,80 ').
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4204728.5 | 1992-02-17 | ||
| DE19924204728 DE4204728A1 (en) | 1992-02-17 | 1992-02-17 | Self contained plant drum heating for prodn. of low temp. gas - by using heating gas obtd. from carbonisation gas, for economy and simple gas prepn. |
| DEP4217301.9 | 1992-05-25 | ||
| DE4217301A DE4217301A1 (en) | 1992-02-17 | 1992-05-25 | Method and device for heating a smoldering drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1076472A CN1076472A (en) | 1993-09-22 |
| CN1038942C true CN1038942C (en) | 1998-07-01 |
Family
ID=25911934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93103173A Expired - Fee Related CN1038942C (en) | 1992-02-17 | 1993-02-17 | The process and apparatus heating subzero-roll |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0626988B1 (en) |
| JP (1) | JP3299967B2 (en) |
| KR (1) | KR100234226B1 (en) |
| CN (1) | CN1038942C (en) |
| AT (1) | ATE137257T1 (en) |
| CZ (1) | CZ282500B6 (en) |
| DE (2) | DE4217301A1 (en) |
| ES (1) | ES2086926T3 (en) |
| WO (1) | WO1993016147A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2126393T3 (en) * | 1995-03-21 | 1999-03-16 | Metallgesellschaft Ag | PROCEDURE FOR THE TREATMENT OF DOMESTIC WASTE. |
| DE19512785A1 (en) * | 1995-04-05 | 1996-10-17 | Siemens Ag | Process for the thermal treatment of waste materials |
| FR2734343A1 (en) * | 1995-05-16 | 1996-11-22 | Ostan Raffaele | Rotary furnace for destroying waste by pyrolysis, for disposal of urban, industrial, hospital and agricultural waste |
| DE102005001569B4 (en) * | 2005-01-13 | 2008-11-13 | Strohmenger, Patrick, Dipl.-Ing. | Plant for polluting a pyrolysis product |
| DE202007016421U1 (en) | 2006-11-22 | 2009-04-02 | Morschett, Peter | Plant for the treatment and treatment of waste materials from composite materials, in particular composite cartons (tetrapacks) |
| CN104315524B (en) * | 2014-09-11 | 2016-06-29 | 中复神鹰碳纤维有限责任公司 | A kind of carbon fiber low-temperature carbonization exhaust treatment system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2244753B1 (en) * | 1972-09-08 | 1973-10-18 | Mannesmann Ag, 4000 Duesseldorf | Method and device for reinforcing gauze |
| DE3018572C2 (en) * | 1980-05-14 | 1983-07-21 | Deutsche Kommunal-Anlagen Miete GmbH, 8000 München | Indirectly heated rotary kiln for the pyrolysis of waste materials, in which the pyrolysis gases are fed to the burner of the rotary kiln for combustion |
| DE3815187A1 (en) * | 1988-05-04 | 1989-11-16 | Siemens Ag | Temperature-controlled installation for thermal waste disposal |
-
1992
- 1992-05-25 DE DE4217301A patent/DE4217301A1/en not_active Ceased
-
1993
- 1993-02-11 EP EP93903164A patent/EP0626988B1/en not_active Expired - Lifetime
- 1993-02-11 JP JP51366693A patent/JP3299967B2/en not_active Expired - Lifetime
- 1993-02-11 AT AT93903164T patent/ATE137257T1/en not_active IP Right Cessation
- 1993-02-11 CZ CZ941955A patent/CZ282500B6/en not_active IP Right Cessation
- 1993-02-11 DE DE59302381T patent/DE59302381D1/en not_active Expired - Fee Related
- 1993-02-11 KR KR1019940702836A patent/KR100234226B1/en not_active IP Right Cessation
- 1993-02-11 WO PCT/DE1993/000119 patent/WO1993016147A1/en active IP Right Grant
- 1993-02-11 ES ES93903164T patent/ES2086926T3/en not_active Expired - Lifetime
- 1993-02-17 CN CN93103173A patent/CN1038942C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2086926T3 (en) | 1996-07-01 |
| ATE137257T1 (en) | 1996-05-15 |
| DE4217301A1 (en) | 1993-12-02 |
| DE59302381D1 (en) | 1996-05-30 |
| WO1993016147A1 (en) | 1993-08-19 |
| JP3299967B2 (en) | 2002-07-08 |
| CZ195594A3 (en) | 1994-12-15 |
| EP0626988B1 (en) | 1996-04-24 |
| CZ282500B6 (en) | 1997-07-16 |
| JPH07503743A (en) | 1995-04-20 |
| KR100234226B1 (en) | 1999-12-15 |
| KR950700378A (en) | 1995-01-16 |
| CN1076472A (en) | 1993-09-22 |
| EP0626988A1 (en) | 1994-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MITSUI SHIPBUILDING CO., LTD.; TAKUMA KK Free format text: FORMER OWNER: SIEMENS AG Effective date: 20061124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061124 Address after: Tokyo, Japan, Japan Co-patentee after: Takuma K. K. Patentee after: Mitsui Shipbuilding Co., Ltd. Address before: Munich, Federal Republic of Germany Patentee before: Siemens AG |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19980701 |