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1. 发明专利

JPS61150708A METHOD FOR TREATING ROLL-COOLING WATER BY USING OZONE 失效
公开(公告)号：JPS61150708A
公开(公告)日：1986-07-09
申请号：JP27524484
申请日：1984-12-25
申请人： KAWASAKI STEEL CO , MITSUBISHI ELECTRIC CORP
发明人： MATSUMOTO MASAJI , KITAMURA HIDEKI , WAKITANI YOSHIAKI , OZAWA KENJIYU , USUI AKIRA , HONDA TOSHIICHI
IPC分类号： C02F1/50 , B21B27/10 , B21B45/02 , C02F1/78
摘要： PURPOSE:To reduce the injecting amount of gaseous O3 and the operation cost by adjusting the pH concentration of cooling water a little lower to lengthen the half life of O3, when the gaseous O3 is injected into roll-cooling water. CONSTITUTION:A gaseous O3 injecting pipe 20 is parallelly connected to a water-supplying piping 10 at the outlet side of a cooling tower 7. A gaseous O3 generating and supplying device 15 is connected to the pipe 20 to supply gaseous O3 to the pipe 20 by an ejector 16, and high-pressure cooling water is supplied to the ejector 16 by an ejector pump 21. An acid injection pump 17 interlocked with the pump 21, is actuated together with the pump 21, i.e. the ejector 16. By this construction, a sulfuric acid, for instance, supplied from an acid tank 19 through a control valve 18, is injected into the cooling water of piping 10 at the suction side of a water supplying pump 9. Accordingly, the pH concentration of cooling water is lowered. This pH concentration is measured by a pH meter 22, and the valve 18 of pump 17 is adjusted to control the amount of acid to be injected, so that the actual pH concentration coincides with the aimed one.

2. 发明专利

JPS61150707A WATER TREATMENT METHOD BY OZONE IN COOLING WATER USED FOR ROLLING 失效
公开(公告)号：JPS61150707A
公开(公告)日：1986-07-09
申请号：JP27524384
申请日：1984-12-25
申请人： KAWASAKI STEEL CO , MITSUBISHI ELECTRIC CORP
发明人： MATSUMOTO MASAJI , KITAMURA HIDEKI , WAKITANI YOSHIAKI , USUI AKIRA , HONDA TOSHIICHI , IKEDA AKIRA
IPC分类号： C02F1/50 , B21B27/06 , B21B27/10 , B21B45/02 , C02F1/78
摘要： PURPOSE:To stabilize the residence time of O3 and to keep the O3-concentration of headers at a prescribed value, by installing a branch pipe at the downstream just before water-spraying headers, and controlling the amount of water in the O3- residence-time zone of a cooling-water piping into which the gaseous O3 is injected at the upstream into a constant value. CONSTITUTION:A gaseous O3 injecting pipe 17 is parallelly connected to a water- supplying piping 10 at the outlet side of a cooling tower 7. A gaseous ozone generating and supplying device 15 is connected to the pipe 17 to supply gaseous O3 by an ejector 16, and high-pressure cooling water is supplied to the ejector 16 by an ejector pump 18. For controlling the flow rate of cooling water, a cooling-water extracting pipe 20, branched from the pipe 10 in the vicinity of headers 14, is connected to the return pipe 21 of a discharged-water receiving tank 5. A flow regulating valve 22 is provided to the pipe 20, and a flow meter 23 is attached to the pipe 10 at the upstream side of the connecting point of pipe 20. The valve 22 is controlled by a flow-rate signal outputted from the meter 23, to maintain the constant flow-rate of cooling water at the O3-residence-time zone of pipe 10, that is between the ozone injecting point A and the connecting point B of pipe 20.

3. 发明专利

JPS59230698A APPARATUS FOR CONTROLLING CHEMICAL AGENT INJECTING AMOUNT IN SLUDGE TREATING EQUIPMENT 失效
公开(公告)号：JPS59230698A
公开(公告)日：1984-12-25
申请号：JP10512183
申请日：1983-06-13
申请人： NAKAMORI HITOSHI , MITSUBISHI ELECTRIC CORP
发明人： NAKAMORI HITOSHI , HIROTSUJI JIYUNJI , HONDA TOSHIICHI , MAEDA MITSUO
IPC分类号： C02F11/14 , B01D21/30
摘要： PURPOSE:To perform stable control by controlling the injection amount of a chemical agent, by mounting a charged sludge dry matter operator, a first pH meter for measuring the pH of sludge, a ferric chloride injecting amount controller and a second pH meter for measuring the pH of sludge after the injection of slaked lime. CONSTITUTION:The control of a ferric chloride injecting amount is achieved by such a process that the amount proportional to the dry matter of sludge charged to a ferric chloride injecting tank 1 is used a basic amount and the amount corresponding to the difference of the measured pH value in the tank 1 and a pH set value preset, for example, to 4.5-5.5 is added to said basic amount as a feedback amount while an electromotive valve 11a is controlled on the basis of the sum amount thereof. The control of a slaked lime injecting amount is performed in such a process that the amount proportional to the dry matter of the sludge charged to a slaked lime injecting tank 2 used as a basic amount and the amount corresponding to the difference of the measured pH value in the slaked lime injecting tank 2 and a pH value preset, for example, to 11-12 is added as a feedback amount while an electromotive valve 11a is controlled on the basis of the sum amount thereof.

4. 发明专利

JPS5876101A APPARATUS FOR PURIFYING ORGANIC SOLVENT 失效
公开(公告)号：JPS5876101A
公开(公告)日：1983-05-09
申请号：JP17522381
申请日：1981-10-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： HORIUCHI KOUICHI , HONDA TOSHIICHI
IPC分类号： B01D9/02
摘要： PURPOSE:To separate an org. solvent and water simply in high preciseness, by a method wherein the org. solvent containing water after precooling is further cooled by brine to remove water as an ice crystal and the separated org. solvent is recovered through a precooling apparatus. CONSTITUTION:A water containing org. solvent (e.g.; a mixture consisting of 85vol% THF and 15vol% water) is supplied to a precooling apparatus 4 to be cooled by the cold org. solvent at about -10 deg.C recovered from a succeeding apparatus for separating an ice crystal from the org. solvent. This precooled water containing org. solvent is sent to a crystallizing apparatus 5 and cooled by brine or a cooling medium cooled to -10--40 deg.C sent from a freezing apparatus 6 to obtain the two-phase (sherbet like) org. solvent having water as an ice crystal contained therein. In the next step, this org. solvent is sent to the separation apparatus 7 such as a vibration screen to discharge the ice crystal precipitated therein to the outside. On the other hand, the recovered org. solvent with a low temp. of about -10 deg.C is sent into the apparatus 4 to carry out heat exchange with the water containing solvent in the apparatus 4 to precool the same and recovered as the purified org. solvent.

5. 发明专利

JPS5866778A DRIER 失效
公开(公告)号：JPS5866778A
公开(公告)日：1983-04-21
申请号：JP16594181
申请日：1981-10-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAGI TOSHINORI , HONDA TOSHIICHI
IPC分类号： F26B17/28 , F26B21/00

6. 发明专利

JPS52135797A APPARATUS FOR DETECTING PHASE CHANGE OF LIQUID 失效
公开(公告)号：JPS52135797A
公开(公告)日：1977-11-14
申请号：JP5262876
申请日：1976-05-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： METSUGI MASATAKE , HONDA TOSHIICHI
IPC分类号： G01N27/06 , G01N17/00 , G01N25/56
摘要： PURPOSE:To provide an apparatus for detecting phase change of a liquid, in which electric resistance values of an aqueous solution are measured to detect correctly phase change of a liquid.

7. 发明专利

JPS61150706A ROLL COOLING METHOD OF COLD ROLLING MILL 失效
公开(公告)号：JPS61150706A
公开(公告)日：1986-07-09
申请号：JP27524284
申请日：1984-12-25
申请人： KAWASAKI STEEL CO , MITSUBISHI ELECTRIC CORP
发明人： MATSUMOTO MASAJI , KATAYAMA HIDEO , KITAMURA HIDEKI , WAKITANI YOSHIAKI , TESHIBA TOKO , OZAWA KENJIYU , USUI AKIRA , HONDA TOSHIICHI , IKEDA AKIRA
IPC分类号： B21B27/10 , C02F1/78
摘要： PURPOSE:To relieve the maintenance of a water filter, etc. as well as to reduce make-up water and to reduce its operation cost, by injecting gaseous ozone into roll-cooling water is prevent the generation of slime in the supplying pipe of cooling water as well as to improve the quality of a metallic strip. CONSTITUTION:For generating gaseous O3 by a gaseous-O3 generating and supplying device, gaseous O2 from a gaseous-O2 supplying device 19 is pressurized by a circulating blower 20 and is sent to a gaseous-O3 generator 21. A part of the gaseous-O2 is converted into gaseous O3, and the O3-containing gaseous O2 is fed into an adsorbing tower 22 through a control valve 23. At the time of adsorbing the O3, the O3 contained in the O3-containing gaseous O2 is adsorbed by cooling an adsorbent in the tower 22 with the aid of a refrigerator 24. The gaseous O2 from the tower 22 is sent to the generator 21 again by the blower 20 to adsorb the required amount of O3. Next, a heat-up brine pump 28 is actuated to send a heating medium into a heating fin 26 in the tower 22, to adsorb the O3 adsorbed by the adsorbent. When an ejector pump 18 is started and a control valve 31 is opened, the reaction and mixing of the O3-containing gas and the cooling water is accelerated by an ejector 16.

8. 发明专利

JPS60106512A MEASURING DEVICE OF FILTRATION PERFORMANCE 失效
公开(公告)号：JPS60106512A
公开(公告)日：1985-06-12
申请号：JP21677383
申请日：1983-11-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKATSUGAWA NAOKI , HIROTSUJI JIYUNJI , HONDA TOSHIICHI , TANAKA HISAO
IPC分类号： B01D37/04 , G01N15/08
摘要： PURPOSE:To facilitate measurement and to improve accuracy of measurement by automating the analytical procedure and measuring solid matter content of sample, time for filtration, and amt. of filtrate, etc. automatically, and enabling to output these measured signals after operation. CONSTITUTION:All procedures beginning from introduction of a sample into a filter 1 to execution of filtration, measurements until the last discharging procedure of the filtrate are performed in accordance with procedures and set time stored in the storage circuit 8 by successively operating valves 9-12 by the function of a control circuit 17. Namely, a control device 17 controls always the valve 9 so as to adjust the filtration pressure to a predetermined value stored in a storage device 18. On the other hand, measured values of a pressure gauge 6, solid matter densitometer 13, pressure gauge 14 for the measurement of quantity of filtrate, and a time piece 15 are inputted to an inputting circuit 19, and inputted further simultaneously with completion of filtration to an operation circuit 20. The data operated in the operating circuit 20 are inputted to an output device 21 and are outputted.

9. 发明专利

JPS59229000A CONTROL DEVICE FOR CHEMICAL INJECTING QUANTITY OF SLUDGE TREATING APPARATUS 失效
公开(公告)号：JPS59229000A
公开(公告)日：1984-12-22
申请号：JP10512083
申请日：1983-06-13
申请人： NAKAMORI HITOSHI , MITSUBISHI ELECTRIC CORP
发明人： NAKAMORI HITOSHI , HIROTSUJI JIYUNJI , HONDA TOSHIICHI , TANAKA HISAO
IPC分类号： C02F11/14
摘要： PURPOSE:To perform satisfactory adjustment of sludge by comparing values of pH measured for an FeCl3 injecting tank and a Ca(OH)2 injecting tank with predetermined values of pH and controlling the quantities of FeCl3 and Ca(OH)2 to be injected in accordance with the difference of pH between the measured values and the predetermined values. CONSTITUTION:Comparison of pH measured in an FeCl3 injecting tank 1 and preset value therefor, for example 3.5-5.5 is performed by a pH controller 8, and the control of the quantity of FeCl3 to be injected is done by controlling a motor valve 11a in accordance with the difference between both values. The control of the quantity of Ca(OH)2 to be injected is performed by controlling a motor valve 16 basing on the difference between the value of pH in a Ca(OH)2 injecting tank and a preset value, for example 11-12. The quantity of Ca(OH)2 to be injected is obtd. as an output of a pH controller 14 which is used as an input of set value to a Ca(OH)2 injection controller 15.

10. 发明专利

JPS59228915A DEVICE FOR CONTROLLING FILTRATION RATE OF VACUUM DEHYDRATOR 失效
公开(公告)号：JPS59228915A
公开(公告)日：1984-12-22
申请号：JP10511983
申请日：1983-06-13
申请人： NAKAMORI HITOSHI , MITSUBISHI ELECTRIC CORP
发明人： NAKAMORI HITOSHI , HIROTSUJI JIYUNJI , NAKATSUGAWA NAOKI , HONDA TOSHIICHI
IPC分类号： B01D33/048 , B01D37/04 , G05D13/00 , B01D33/14
摘要： PURPOSE:To dehydrate stably by adjusting the filtration rate of the filtrate, etc. from the concn., etc. of the supply sludge, and using the adjusted value and the predetermined filtration rate to control the revolving speed of a vacuum dehydrator. CONSTITUTION:The flow rates of the filtrate and the washing water are obtained with flowmeters 4a and 5a, and the filtration rate Rv of the filtrate is calculated by an arithmetic unit 6. The adjusted value Rv' of the filtrate is also calculated by an arithmetic unit 11 by using the equation Rv'=S1/2.Rv, where S is the concn. of the supply sludge from a densitometer 3b. In addition, the revolving speed of the drum of a vacuum dehydrator 1 is regulated with a regulator 7 by using the equation N=N*+G1(Rv'-Rv*), where N* is the desired value of the number of revolutions of said drum, Rv* is the desired value of the filtration rate from a setting device 8, and G1 is the gain of the regulator 7. The signal S1 from a speedometer 1a for measuring the revolution of said drum and the signal S7 of the regulator 7 are used in a regulator 10 to control and regulate the revolving speed of a motor 1b with the signal S10.

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