专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH06138294A WASTE CAKING DEVICE 失效
公开(公告)号：JPH06138294A
公开(公告)日：1994-05-20
申请号：JP29241192
申请日：1992-10-30
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SUDO KAZUAKI , KAWAGUCHI OSAMU , ITORI MASASHI , KOBAYASHI TAKAO
IPC分类号： B09B3/00 , G21F9/16
摘要： PURPOSE:To prevent a caking agent from absorbing moisture by automatically controlling opening and closing operations for a valve located above a ventilating line, that located above a dehumidified air injecting line and that located above a caking agent cutting line. CONSTITUTION:To feed a caking agent into a silo 1 from a caking agent inlet 5, a valve 6 located above a caking-agent cutting line is closed and a valve 7 located above a dehumidified air injecting line and a valve 8 located above a ventilating line are automatically closed, while a caking-agent loading valve 8 is opened using a site switch. Then, a ventilating system 4 is relieved to negative pressure and the inside of the silo 1 is sucked into the ventilating system 4 so that dust leaks from the inlet 5 can be prevented. To cut the caking agent, the valve 6 is opened and the valves 7, 8 are automatically opened and the caking agent is cut out and carried to a weighing roll 2 while dehumidified air is continuously injected from the lower portion of the silo 1. The silo 1 is connected to the ventilating system 4 and dehumidified air matching the amount of in-leak of ambient air is injected, so the leakage of moist ambient air is prevented and the caking agent can be prevented from absorbing moisture.

2. 发明专利

JPH04116499A RUST PREVENTIVE INJECTION DEVICE OF AUXILIARY COOLING WATER SYSTEM 失效
公开(公告)号：JPH04116499A
公开(公告)日：1992-04-16
申请号：JP23552790
申请日：1990-09-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MUTO TAKEAKI , KAWAGUCHI OSAMU , HOSHINO RYOICHI
IPC分类号： G21D1/00 , G21D3/08
摘要： PURPOSE:To simplify operation manipulation to reduce the burden on operators to contrive the rationalization of the facility by providing a circulation line for a surge tank to inject rust preventives from the upper part of the surge tank. CONSTITUTION:A rust preventive weigher 5 is set on a surge tank 1 while a circulation line 11 is provided for the tank 1. When a necessary quantity of a rust preventive is injected during the circulation operation of the tank 1, the rust preventive is surely supplied to a load device 6 since the same flow as circulation flow is supplied to a pump 2 from the outlet of the tank 1. In addition, since the injection method is executed by the opening and closing of only an outlet valve 9 of a weigher 5 provided on the upper part of the tank 1, the burden on operators can be reduced. Further, since the weigher 5 is not directly connected to the system, the system water does not leak out from the valve 9. Furthermore, since the inside of the tank 1 is always in an agitating state by circulating operation, the stagnation of water can be controlled.

3. 发明专利

JPS6358243A METHOD FOR MEASURING ION-EXCHANGE CAPACITY OF ION EXCHANGE DEVICE 失效
公开(公告)号：JPS6358243A
公开(公告)日：1988-03-14
申请号：JP20144086
申请日：1986-08-29
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TANAKA WATARU , SAITO TORU , KAWAGUCHI OSAMU , SAWA TOSHIO , YAMAMOTO MICHIYOSHI
IPC分类号： B01D15/04 , G01N27/00 , G01N30/96
摘要： PURPOSE:To exactly recognize the timing for regeneration by measuring the frequency response characteristic of a granular ion exchange resin interposed between electrodes and quantitatively detecting the decrease in the ion-exchange capacity of the granular ion exchange resin and the adsorption quantity of clads. CONSTITUTION:Plural pairs of the electrodes 3 are provided to face each other in a packed vessel 2 of an ion-exchange device in which vessel the granular ion-exchange resin 1 is packed. AC waves of varied frequencies are passed to the electrodes 2 from an impedance response analyzer 5 via a potentiostat 4 and the impedance ¦Z¦ of this time is measured by the analyzer 5. The measured impedances are automatically outputted by a printer 6. An electrostatic capacity C1 and soln. resistance RS change functionally with a decrease in the ion-exchange capacity of the granular ion exchange resin and the adsorption quantity of the clad; therefore, the performance deterioration condition is quantitatively recognized by properly measuring and monitoring said changes.

4. 发明专利

JPH04128698A SOLIDIFICATION TREATMENT DEVICE FOR RADIOACTIVE WASTE 失效
公开(公告)号：JPH04128698A
公开(公告)日：1992-04-30
申请号：JP24760890
申请日：1990-09-19
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： OUCHI MASAICHI , KAWAGUCHI OSAMU , KOBAYASHI TAKAO , TANAKA WATARU
IPC分类号： G21F9/16
摘要： PURPOSE:To make the capacity of a kneading tank the minimum required capacity by detecting and calculating the injection quantity of solidifier-paste and the quantities of solidifier and water. CONSTITUTION:Solidifier-paste prepared in a kneading tank 4 is injected into a filling vessel 6 filled with radioactive waste pellets 16. The weights of solidifier and water are calculated, and signals are outputted to the load cell 9 of a solidifier weighing tank and the load cell 11 of an added water weighing tank to weigh solidifier and water, and solidifier-paste is injected in the same process as above described into a next filling vessel and continuously injected, solidified and treated. The solidifier-paste left in the kneading tank 4 is washed by wash water in a wash water tank 5 through a wash water pump 13. After washing, washing liquid wastes are returned to the wash water tank 5 by switching a three-way valve 15. For the subsequent washing, the washing liquid wastes containing sludge are settled-separated, and washing is performed using supernatant water.

5. 发明专利

JPS6491097A PREVENTION FOR HARDENING OF KNEADED MATTER IN SOLIDIFYING EQUIPMENT 失效
公开(公告)号：JPS6491097A
公开(公告)日：1989-04-10
申请号：JP24785887
申请日：1987-10-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TANAKA WATARU , SAITO TORU , KAWAGUCHI OSAMU , OUCHI MASAICHI
IPC分类号： G21F9/30 , G21F9/00 , G21F9/16
摘要： PURPOSE:To prevent a rise in viscosity in a kneading tank for a kneaded matter, by a method wherein the state of kneaded matter of a solidifying agent, an additive and a radioactive waste and the like is checked directly and indirectly and an anti- hardening agent is added in case of abnormality to prevent hardening. CONSTITUTION:A solidification processing equipment is constituted of a solidifying agent silo 1, a solidifying agent weighing hopper 2, a kneading tank 3 and an adding water weighing tank 5. A fixed amount of a solidifying agent is supplied to a kneading tank 3 with a solidifying agent weighing hopper 2. The kneading tank 3 kneads a solidifying matter and an adding water thoroughly with a kneading/agitating device 4. Here, the viscosity of a kneaded matter is always measured with a viscosity measuring device 8 to be monitored with a viscosity control indicator 9, for which an upper limit value of the viscosity is set beforehand. When an input signal is given above the upper limit value, a full opening signal is outputted to an adding water outlet valve 6 and an adding water inlet valve 7 to inject the adding water into the kneading tank 3 as anti-hardening agent. This enables checking for the condition of the kneaded matter in the kneading tank thereby preventing a rise in viscosity.

6. 发明专利

JPS63191099A SOLIDIFYING-MATERIAL LEVEL DETECTOR 失效
公开(公告)号：JPS63191099A
公开(公告)日：1988-08-08
申请号：JP2236787
申请日：1987-02-04
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： OUCHI MASAICHI , SAITO TORU , KAWAGUCHI OSAMU , TANAKA WATARU
IPC分类号： G21F9/36 , G21F9/00

7. 发明专利

JPS58135999A TOOL DECONTAMINATING DEVICE 失效
公开(公告)号：JPS58135999A
公开(公告)日：1983-08-12
申请号：JP1745182
申请日：1982-02-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAWAGUCHI OSAMU , OOUCHI MASAICHI
IPC分类号： G21F9/28 , B08B9/02 , B08B9/04 , G21F9/00

8. 发明专利

JPH0788457A SYSTEM AND METHOD FOR UTILIZING WASTE 失效
公开(公告)号：JPH0788457A
公开(公告)日：1995-04-04
申请号：JP23278893
申请日：1993-09-20
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SATO TAKAO , HORIUCHI SUSUMU , TAMADA SHIN , MIYADERA HIROSHI , YAMASHITA HISAO , YAMADA RYOKICHI , KAWAGUCHI OSAMU , KOBAYASHI TAKAO
IPC分类号： A62D3/00 , B09B3/00 , F23G5/00 , F23G5/027
摘要： PURPOSE:To reduce the amt. of secondary waste to enhance efficiency as a whole by treating wastes of different kinds at the same time by providing a metal melting means and/or a fluorocarbon thermal decomposition means utilizing power or heat obtained using a part of the oil and gas obtained by a dry distillation means. CONSTITUTION:When waste Al, for example, a waste tire is treated in a dry distillation furnace 3, it is thermally decomposed into condensible and non- condensible gases 4 and a product A6 such as carbide. Waste B2, for example, fluorocarbon is charged into a thermal decomposition furnace 5 along with steam and air to be successively subjected to thermal decomposition and neutralization treatment to form a product B8 and, as necessary heat or vapor, the heat of the dry distillation furnace 3 or a part of the formed non-condensible gas 4 is utilized. A part of the formed gas 4 and carbide of the dry distillation tower 3 is used in a low temp. metal melting furnace 11b. The condensible gas 4 is cooled by a cooler 7 and the formed oil 9 is supplied to a dynamo 10 and the generated power is supplied to a high temp. melting furnace 11a to melt a metal with a high m.p. The product A6 is activated carbon and the product B8 is fluorite.

9. 发明专利

JPH05346494A 失效
公开(公告)号：JPH05346494A
公开(公告)日：1993-12-27
申请号：JP15472592
申请日：1992-06-15
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SATO HIROFUMI , KAWAGUCHI OSAMU , OUCHI MASAICHI
IPC分类号： G21F9/30
摘要： PURPOSE:To make the preventing dispersing and adhesion of a solidifying paste possible by surrounding an electrode type level meter detector part detecting the injection amount of the solidifying paste, with a hollow cylinder vessel. CONSTITUTION:After adding water measured with a water meter 3 into a mixing tank 4, the solidification agent stored in a solidification agent silo 1 is measured with a solidification agent meter 2 and transported gradually into the mixing tank 4 and mixed with a stirrer 5 to form solidifying paste 10. The solidifying paste 10 is injected in a solidification vessel 9 charged with waste 8 through an injection pipe 7 by opening an injection valve 6. At this time an electrode type level meter 11 set for preventing overflow of the solidifying paste 10 out of the solidification vessel 9 controls the injection rate. A protection cylinder 12 surrounds the detector of the level meter 11 to prevent adhesion of the solidifying paste 10 due to dispersion during the injection. A washing valve 14 supplies washing water for washing the level meter 11 to which solidifying paste 10 adhered.

10. 发明专利

JPH05172994A WASTE SOLIDIFICATION AND SOLIDIFIACTION DEVICE 失效
公开(公告)号：JPH05172994A
公开(公告)日：1993-07-13
申请号：JP34439491
申请日：1991-12-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KOBAYASHI TAKAO , OUCHI MASAICHI , KAWAGUCHI OSAMU , TANAKA WATARU
IPC分类号： B01F13/08 , B09B3/00 , G21F9/16 , G21F9/30
摘要： PURPOSE:To eliminate any contamination possibility of a periphery of a solification device by droppings of sticking matters to a blade, and necessity to cleansing it as well. CONSTITUTION:The solification device in this invention is constituted of an agitating body 2 which is housed in a solidifying vessel 1, and a base 3 equipped with a magnet 4 (an electromagnet) to rotate the body 2, otherwith, is constituted of an agitator shaft connected to the solidifying vessel with a electric motor 5 and a detchable coupling, and an agitator body.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式