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1. 发明专利

JP2001227735A PLASMA ARC MELTING FURNACE 失效
公开(公告)号：JP2001227735A
公开(公告)日：2001-08-24
申请号：JP2000038385
申请日：2000-02-16
申请人： BABCOCK HITACHI KK
发明人： MARUMOTO TAKAHIRO , SENJU TORU
IPC分类号： F23J1/00 , F27D11/08
摘要： PROBLEM TO BE SOLVED: To provide a plasma arc melting furnace capable of enhancing heat input efficiency while protecting a plasma torch, reducing the running cost, increasing treatment quantity of ash, and greatly reducing NOx in the furnace body. SOLUTION: An external cylinder 6 made of a heat insulating material is disposed with a gap 7 on the periphery of a plasma torch 2 and a denitration agent is let to flow through the gap 7. Since the high temperature atmospheric gas or dust in the furnace body 1 hardly comes into contact with the cooled plasma torch 2 having a low surface temperature, not only the plasma torch 2 can be securely protected but also the heat quantity absorbed by the plasma torch 2 is greatly reduced and the heat input efficiency is enhanced. Further, since the denitration agent flows in the furnace body 1, NOx is reduced and reduction of pollution is promoted.

2. 发明专利

JPH07204464A EXHAUST GAS TREATMENT APPARATUS AND METHOD OF INCINERATOR 失效
公开(公告)号：JPH07204464A
公开(公告)日：1995-08-08
申请号：JP587194
申请日：1994-01-24
申请人： BABCOCK HITACHI KK
发明人： YAMAMOTO MANABU , FUJIWARA NAOKI , SENJU TORU
IPC分类号： F23J3/04 , B01D53/14 , B01D53/34 , B01D53/68
摘要： PURPOSE:To economically treat the exhaust gas of an incinerator without applying excessive load to the bag filter provided to a flue while enhancing the coefficient of utilization of slaked lime and sufficiently reducing the amt. of ash to be discharged. CONSTITUTION:A cyclone 3 removing fly ash in exhaust gas is provided to a flue 2 and a slaked lime blow-in line 5 is provided on the upstream side of the cyclone 3. Further, a bag filter 6 is provided on the upstream side of the slaked blow-in line 5 to collect fly ash blown in the slaked lime blow-in line 5 and the fly ash not removed by the cyclone 3. A part of slaked lime (and fly ash) is discharged out of the system from a fly ash discharge line 7 and a necessary amt. of slaked lime is again blown in the upstream part of the bag filter 6 provided in the flue 2 through a slaked lime recycle line 8 (slaked lime may be blown in not only the downstream part of the cyclone 3 but also the upstream part thereof).

3. 发明专利

JPH09303738A BURNED ASH TREATMENT SYSTEM OF FLUIDIZED BED INCINERATOR 失效
公开(公告)号：JPH09303738A
公开(公告)日：1997-11-28
申请号：JP11611296
申请日：1996-05-10
申请人： BABCOCK HITACHI KK
发明人： IKEBE MASATO , SENJU TORU
IPC分类号： F23G5/30 , F23J1/02
摘要： PROBLEM TO BE SOLVED: To stabilize the bed height and the temperature of a fluidized bed by drawing out the burned ash left on the fluidized bed, and returning the ash to the fluidized bed of an incinerator after cooling, pulverizing, and carrying the ash to discharge and collect the burned ash together with the exhaust gas. SOLUTION: A burned ash treatment system is provided with a fluidized bed 4 to incinerate the industrial waste thrown in an incinerator 11, and a dust collector comprising a bag filter 8 which is turned into the fly ash 6 on the fluidized bed and collects the burned ash 10 together with the exhaust gas to an ash hopper 9. A draw-out chute 12 is provided on a side on the fluidized bed so as to overflow the burnt ash 10 left on the fluidized bed 4, and a treating means 13 to cool and pulverize the burned ash 10 drawn out through the draw- out chute 12 and return the ash to the fluidized bed 4 is provided.

4. 发明专利

JPH09178142A REFUSE BURNING EQUIPMENT 失效
公开(公告)号：JPH09178142A
公开(公告)日：1997-07-11
申请号：JP33505295
申请日：1995-12-22
申请人： BABCOCK HITACHI KK
发明人： TAKASUGI HITOSHI , ONO SHIGEMI , ENOMOTO HIROYASU , SENJU TORU
IPC分类号： F23G5/44
摘要： PROBLEM TO BE SOLVED: To provide refuse burning equipment capable of stabilizing the amount of supply of refuse to an incinerator body and of reducing the production of harmful matter. SOLUTION: A refuse falling hole of a refuse supply machine body 4 and an incinerator body 14 are connected to each other through an insertion chute 9, and refuse discharge hole provided frontally of the refuse supply machine body and a refuse pit 1 are connected with each other through a return chute 11. A lower portion than a set part of a return damper 10 of the return chute and a lower portion than a set part of a supply damper 8 of the insertion chute communicate with each other through a return supply chute 29, and a changeover damper 28 is provided at a connection portion of the return chute and the return supply chute. In the case where the incinerator body is in operation when a screw 5 is reversely driven in order to eliminate clogging, the return chute is closed with the changeover damper to supply the refuse returned from the refuse supply machine body to the incinerator body. When the incinerator body is in a rest state, the return supply chute is closed with the changeover damper to return the refuse to the pit.

5. 发明专利

JPH0921521A APPARATUS AND METHOD FOR COLLECTING LOW BOILING POINT METALLIC SALTS AND HYDROCHLORIC ACID 失效
公开(公告)号：JPH0921521A
公开(公告)日：1997-01-21
申请号：JP16756195
申请日：1995-07-03
申请人： BABCOCK HITACHI KK
发明人： MATSUDA TOSHIAKI , YAMAMOTO MANABU , FUJIWARA NAOKI , SENJU TORU
IPC分类号： F23G7/00 , F23J1/00
摘要： PROBLEM TO BE SOLVED: To prevent closure of a flue and clogging of a bag filter by providing a mobile layer type drying hydrochloric acid-removal apparatus on a waste gas line. SOLUTION: Smoke dust is collected with a bag filter 10, and is fed to a cracker 101. Waste gas produced from the cracker 101 is fed to a hydrochloric acid-removal apparatus 102 where chloride such as NaCl and KCl and hydrochloric acid are collected. In order to prevent the chloride from being condensed on a flue connecting between the cracker 101 and the hydrochloric acid-removal apparatus 102, inlet temperature of the hydrochloric acid removal apparatus 102 is kept at 800 deg.C or higher, and air is blown in from a cooling air blow tube 103 to keep outlet temperature of the hydrochloric acid removal apparatus 102 at 400 deg.C or lower. Thus, the waste gas from which chloride and hydrochloric acid are removed by the hydrochloric acid removal apparatus 102 passes through the flue 26 and is fed to the bag filter 10. The chloride collected by the hydrochloric acid removal apparatus 102 is fed to a separator 105 through a valve 104. After it is separated from limestone, it is fed to an ash stabilizing apparatus 34 where it is solidified with an agent and is discharged.

6. 发明专利

JPH07269836A TRASH INCINERATION FURNACE WITH NOX REMOVAL SYSTEM 失效
公开(公告)号：JPH07269836A
公开(公告)日：1995-10-20
申请号：JP6233194
申请日：1994-03-31
申请人： BABCOCK HITACHI KK
发明人： FUJIWARA NAOKI , SASAKI SATONORI , UEDA YOSHIKI , FUJIWARA HIROMICHI , SENJU TORU
IPC分类号： F23G5/00 , B01D53/56 , B09B3/00 , F23G5/50
摘要： PURPOSE:To provide a trash incineration furnace with a NOx removal system which can ensure an NOX removal reaction space between a denitration agent and combustion exhaust gas without increasing the capacity of a vacant air tower part, and perform an NOx removal process without newly adding denitration agent injecting air. CONSTITUTION:A trash incineration furnace 2, input chute 1 to feed trash in the trash incineration furnace 2, supply pipes 8, 10 to supply secondary and tertiary air to a vacant tower part on the top of the incineration furnace, device to mix/make accompany a denitration agent in a denitration agent tank 18 in the secondary, tertiary air by flow gauges 28, 29 and control valves 30, 35, flame sensor 36 which are provided in stages in the vertical direction in the vacant tower, and a device to control a mixing quantity of the denitration agent in response to the increase/decrease of a flame extension and flame capacity being detected by the flame sensor, or in response to a trash supply quantity to be input in the furnace are provided.

7. 发明专利

JP2002372212A Gasifying melting furnace 有权
标题翻译：加热熔炼炉
公开(公告)号：JP2002372212A
公开(公告)日：2002-12-26
申请号：JP2001179144
申请日：2001-06-13
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： FUJIWARA NAOKI , MARUMOTO TAKAHIRO , SENJU TORU
IPC分类号： F23G5/027 , B09B3/00 , F23G5/00 , F23G5/16
CPC分类号： Y02E50/30
摘要： PROBLEM TO BE SOLVED: To provide a gasifying melting furnace wherein the rate of operation of the melting furnace and reliability of the same are improved and the running cost is reduced by eliminating turbulence factors against a flow in a melting furnace and against a slag rate due to cooling air in a stating burner for the melting furnace. SOLUTION: The gasifying melting furnace comprises a gasifying combustion furnace for combusting refuse, a melting furnace for completely combusting thermal decomposition gas including ash and char particles produced in the gasifying combustion furnace, and a thermal decomposition gas flue. A combustion chamber communicated to the foregoing melting furnace through the flue is provided together with provision of an oil spray nozzle and a starting burner in the combustion chamber, and the flue is joined with the thermal decomposition gas flue, and further hot air produced owing to combustion in the combustion chamber is blown into the melting furnace through the thermal decomposition gas flue.
摘要翻译：要解决的问题：提供一种气化熔炉，其中通过消除熔化炉中的流动的湍流因素和与炉渣速率相关的炉渣速率，提高了熔炉的操作速度及其可靠性，并降低了运行成本以在用于熔化炉的定位燃烧器中冷却空气。解决方案：气化熔炉包括用于燃烧垃圾的气化燃烧炉，用于完全燃烧包括在气化燃烧炉中产生的灰分和焦炭颗粒的热分解气体的熔化炉和热分解气体烟道。在燃烧室中设置有连接到上述熔化炉的燃烧室，同时在燃烧室中设置喷油嘴和起始燃烧器，并且烟道与热分解气体烟道接合，并且由于燃烧室内的燃烧通过热分解气体烟道吹入熔化炉。

8. 发明专利

JP2001227734A PLASMA ARC MELTING FURNACE 失效
公开(公告)号：JP2001227734A
公开(公告)日：2001-08-24
申请号：JP2000036882
申请日：2000-02-15
申请人： BABCOCK HITACHI KK
发明人： MARUMOTO TAKAHIRO , SENJU TORU
IPC分类号： F23J1/00 , F23G5/00
摘要： PROBLEM TO BE SOLVED: To provide a plasma arc melting furnace capable of efficiently preheating ash without circulation of exhaust gas, enhancing heat input efficiency without impairing durability of the furnace body, reducing the running cost, and increasing the treatment quantity of ash. SOLUTION: Pipes 8 through which a working fluid flows are buried in the furnace body 1 to make the working fluid in the pipes 8 absorb the heat of the furnace body 1 and a part of the pipes 8 is disposed close to the ash in the process of being supplied into the furnace body 1. In this way, the ash is preheated by the heat which the working fluid has absorbed. Hence, the temperature increase of the furnace body 1 can be prevented. Since the radiated heat can be recovered and utilized for preheating of the ash, the heat input efficiency can be increased. Further, as air or the like can be used as the working fluid, it is not necessary that the exhaust gas including corrosive gas is circulated.

9. 发明专利

JPH08296831A ASH MELTING TREATMENT METHOD AND CONTROL METHOD 失效
公开(公告)号：JPH08296831A
公开(公告)日：1996-11-12
申请号：JP10089595
申请日：1995-04-25
申请人： BABCOCK HITACHI KK
发明人： SHIMODAIRA WAKAKO , FUJIWARA NAOKI , YAMAMOTO MANABU , SENJU TORU
IPC分类号： F23J1/00 , F23G5/02
摘要： PURPOSE: To prevent sintering of an ash pellet layer in a melting furnace while allowing application for an electric type melting furnace. CONSTITUTION: This ash melting treatment method pelletizes ash of an incinerator to form an ash pellet and preheats the ash pellet while being melted and solidified. The ash pellet is filled into a filling hopper 51 once and a high temperature exhaust gas is led out of a melting furnace 20 for melting the ash pellet to be cooled below the melting temperature of the ash by a gas cooler 25. The exhaust gas below the melting temperature is introduced into a lower part of the filling hopper 51 to preheat the ash pellet. The ash pellet preheated is supplied to the melting furnace 20 from the bottom part of the filling hopper 51 while being melted. This enables preventing of sintering and closure in the filling hopper and in the melting furnace and also allows the utilization of the exhaust gas for the preheating of the ash pellet by mixing air into the exhaust gas even in the case of an electric type melting furnace.

10. 发明专利

JPH0634585A COMBUSTIBILITY MEASURING APPARATUS AND COMBUSTION CONTROLLER FOR FUEL 失效
公开(公告)号：JPH0634585A
公开(公告)日：1994-02-08
申请号：JP18835992
申请日：1992-07-15
申请人： BABCOCK HITACHI KK
发明人： FUJIWARA NAOKI , TAKAHASHI YUKIO , YAMAMOTO MANABU , MATSUMI WAKAKO , FUJIWARA HIROMICHI , SENJU TORU
IPC分类号： F23G5/50 , G01N1/22 , G01N25/22
摘要： PURPOSE:To obtain a combustibility measuring apparatus and a combustion controller which achieve a measuring of combustibility handily and immediately for a fuel changing rapidly with unevenness of components, for example, city garbage to control combustion in an incinerator properly. CONSTITUTION:A sensor 13 having a heating body 1 is inserted into a fuel 12 to burn a part of the fuel and a combustion gas generated is sucked up with a gas analyzer 17 to analyze water, CO2, CO, hydrocarbon and other components while a heating value and ignitability of the fuel are measured from the composition of a produced gas. Based on the combustibility, an amount of combustion air to be sent to the main body 26 of an incinerator is controlled with valves 30 and 31. This enables the measurement of the combustibility handily and immediately by lower labor force for city garbage or the like difficult in estimating the combustibility when the amount of the sample is small. Proper control of combustion is possible by controlling burning conditions based on the combustibility thus obtained.

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