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131. 发明专利

JPH06300468A MOLTEN METAL COOLING APPARATUS 失效
公开(公告)号：JPH06300468A
公开(公告)日：1994-10-28
申请号：JP10979393
申请日：1993-04-14
申请人： SUMITOMO METAL MINING CO
发明人： YOSHIMURA HIROSHI , UTSUNOMIYA KIMIAKI , OGASAWARA MASAHIRO
IPC分类号： C22B13/02 , C22B19/04 , F27D15/02
摘要： PURPOSE:To provide an unmanned process for cooling molten metal by a method wherein a baffle plate is provided projecting from a dolly into the underlying cooling trough in a rotary manner to turn aside the flow of the molten metal and direct it toward the jacket face of a trough, so that the lead locally solidified and deposited on a jacket part is dissolved and removed. CONSTITUTION:Two rails 3 are laid above a water cooling jacket type cooling trough 1 parallel to it and a dolly 4 is placed on the rails 3. During the reciprocal movement of the dolly 4 equipped with a wheel driving mechanism and a baffle plate driving mechanism on the two rails 3, a baffle plate 14 is so controlled as to turn in such direction as to obstruct the flow of molten metal when the dolly is moving in the same direction as the flow of the molten metal and to turn in such direction as not to obstruct its flow when the dolly is moving in the direction opposite to the flow of molten metal. Since the moving direction of the dolly 4 is electrically associated with the manipulation of the baffle plate 14, by a mere reciprocal movement of the dolly 4, an unmanned operation for preventing the solidification and deposition of lead can be performed.

132. 发明专利

JPH06287658A STRUCTURE OF ZINC RECOVERY CHAMBER 失效
公开(公告)号：JPH06287658A
公开(公告)日：1994-10-11
申请号：JP9844793
申请日：1993-03-31
申请人： KAWASAKI HEAVY IND LTD , TOYOTA MOTOR CORP , TOYOKIN KK , CHUGAI RO KOGYO KAISHA LTD
发明人： IJUIN MITSUO , INOUE TAKEHIKO , OKADA YUJI , FUJIO SHUNICHI , SUZUKI KAZUHIRO , NAKATANI YOSHIO
IPC分类号： C22B19/04 , C22B19/30
摘要： PURPOSE:To recover zinc conveniently with high efficiency by introducing the zinc vapor from a vacuum treating furnace passed through an inlet kept at high temp. into the shell of a recovery chamber contg. a low-temp. atmosphere and passing the vapor through a recovery box capable of being freely housed and drawn out. CONSTITUTION:A galvanized steel sheet scrap is heated in a vacuum treating furnace 12, and the generated gaseous zinc is introduced into a zinc recovery chamber 10 connected to the furnace through an inlet passage 14. The inlet 15 of the chamber 10 is held at high temp. by a heating means 30 to prevent the solidification and deposition of the gaseous zinc. The gaseous zinc is further introduced into a recovery box 32 through a cylindrical guide piece 38 fixed to a connecting material 36. The box 32 is freely housed in and drawn out from a shell 16 provided with the front and rear end plates 22 and 24 by means of a transfer means 40. The shell 16 is evacuated through a discharge port 28, and a coolant is circulated through a cooling passage 20 formed with a outer shell 18 to keep the atmosphere at low temp. The box 32 is freely assembled and disassembled using panels, and the solidifed and deposited zinc is easily released.

133. 发明专利

JPH06240377A METHOD FOR CONCENTRATING AND RECOVERING ZINC 失效
公开(公告)号：JPH06240377A
公开(公告)日：1994-08-30
申请号：JP2441093
申请日：1993-02-12
申请人： NIPPON STEEL CORP
发明人： KISHIDA MASAKATSU , TAKUMA MASAO , KOGA MASAMICHI , KUWAZUKA SHIYUNJI
IPC分类号： B09B3/00 , C22B19/04
摘要： PURPOSE:To separate and recover Zn as metallic Zn by heating and melting the waste contg. Zn along with a reducing agent to vaporize Zn and then cooling the gas contg. the Zn vapor. CONSTITUTION:The industrial waste contg. zinc as zinc oxide, etc., or its burnt ash is supplied into a melting furnace along with a reducing agent such as coke, heated at high temp. and melted. The contained zinc oxide is reduced to metallic zinc by the coke, or the low-b.p. zinc is vaporized. The gas contg. the zinc vapor is discharged outside the furnace and cooled, hence the zinc vapor is solidified and separated, and the zinc contained in the waste or burned ash is recovered in high yield.

134. 发明专利

JPH06184655A OPERATING METHOD OF ZINC SMELTING EQUIPMENT 失效
公开(公告)号：JPH06184655A
公开(公告)日：1994-07-05
申请号：JP35394092
申请日：1992-12-16
申请人： SUMITOMO METAL MINING CO
发明人： IEMORI NOBUMASA , UTSUNOMIYA KIMIAKI , TAKANO HITOSHI , FUJITA KEIJI
IPC分类号： C22B19/00 , C22B19/04
摘要： PURPOSE:To provide an operating method of a zinc smelting equipment capable of surely preventing the explosion of carbon monoxide in an emergency. CONSTITUTION:When supply of either of the feeds to be supplied into a reducing furnace is stopped, the stopping of supply is detected, and supply of all other feeds is stopped, the inert gas is blown into the zinc smelting equipment from the supply side of the reducing furnace, and the positive pressure in this zinc smelting equipment is maintained. This constitution surely prevents the explosive combustion of carbon monoxide caused by the stopping of the operation.

135. 发明专利

JPH06183794A TREATING METHOD FOR ELECTRIC FURNACE-DISCHARGED MATERIAL 失效
公开(公告)号：JPH06183794A
公开(公告)日：1994-07-05
申请号：JP33901092
申请日：1992-12-18
申请人： DAIDO STEEL CO LTD
发明人： HOJOKAI HARUO , KATO MITSUNORI , TAKEUCHI TAKESHI
IPC分类号： C04B5/06 , C21C7/00 , C22B7/02 , C22B7/04 , C22B19/04 , F27D15/00
摘要： PURPOSE:To effectively utilize simultaneously both an electric furnace dust and a reduced slag which are industrial wastes by fusing and mixing both electric furnace-discharged materials to make an oxidized slag. CONSTITUTION:The electric furnace dust discharged from an electric furnace is incorporated in the molten reduced slag similarly discharged from the electric furnace and is fused to be mixed. The ratio of the electric furnace dust to the reduced slag is controlled to 1:(1-3) weight ratio. At the time of fusing and mixing the electric furnace dust and the reduced slag, evaporating Zn contained in the electric furnace dust is recovered as a high Zn dust, which is effectively utilized as a Zn raw material.

136. 发明专利

JPH05504375A 失效
公开(公告)号：JPH05504375A
公开(公告)日：1993-07-08
申请号：JP50185890
申请日：1990-12-17
IPC分类号： C22B4/00 , C22B7/02 , C22B19/04 , C22B19/18 , C22B19/30

137. 发明专利

JPH04225876A METHOD AND DEVICE FOR CLEANING SURFACE OF SOLID 失效
公开(公告)号：JPH04225876A
公开(公告)日：1992-08-14
申请号：JP41496390
申请日：1990-12-27
申请人： YOKOYAMA YOSHIAKI
发明人： YOKOYAMA YOSHIAKI
IPC分类号： B08B3/10 , B08B7/00 , C22B1/00 , C22B7/00 , C22B19/04 , C23F4/02 , C23G5/00
摘要： PURPOSE:To efficiently remove the deposit on the surface of a solid to be treated at a low running cost and to provide the subject method and device capable of avoiding oxidation of the solid at the time of its treating. CONSTITUTION:This cleaning device is provided with a closed vessel 3 having a closed space 2 to be charged with an article 1 to be treated, a means 4 for heating the inside of the vessel 3, a means 5 for condensing the metal and nonmetal removed from the article 1 communicating with the vessel 3, a means 6 for evacuating the vessel 3 through the means 5, a means 7 for pressurizing the vessel 3 with a nonoxidizing gas and a means 31 for preheating the article 1 with the remaining heat of the gas.

138. 实用新型

JPH0114674Y2 失效
公开(公告)号：JPH0114674Y2
公开(公告)日：1989-04-28
申请号：JP13193585
申请日：1985-08-29
IPC分类号： C22B7/04 , C22B19/04 , C22B19/18 , C22B19/30

139. 发明专利

JPS63259036A METHOD FOR RECOVERING ZN FROM MATERIAL CONTAINING BY-PRODUCT ZN 失效
公开(公告)号：JPS63259036A
公开(公告)日：1988-10-26
申请号：JP9356387
申请日：1987-04-16
申请人： SUMITOMO METAL IND , TANAKA KOGYO
发明人： HASHIMOTO TAKAO , MARUKAWA YUJO , TATENO MASAKI , KISHINO SHIZUO
IPC分类号： C22B19/04 , C22B7/02 , C22B19/00 , C22B19/20 , C22B19/30
摘要： PURPOSE:To recover high-purity Zn from the material contg. by-product Zn of an iron works by reducing and volatilizing the material in a volatilization furnace kept at a specified temp. and filled with a reducing atmosphere, bringing the obtained ZnO or Zn into contact with sulfuric acid, and neutralizing the formed ZnSO4 with Na2CO3 to obtain ZnCO3. CONSTITUTION:The pellet of electric furnace dust, CDQ coke, etc., is charged in a first volatilization furnace 1A, the plating dross block in zinc plating equipment is charged in a second volatilization furnace 1B, and the insides of both furnaces are heated and kept at 900-1,100 deg.C. Air or a reducing gas such as N2 is supplied to the Zn component volatilized, passed through a filter 4, and transferred to a duct 6, and the Zn component is collected by dust collectors 8A and 8B and recovered respectively as ZnO and Zn. Meanwhile, the iron and carbon-enriched residue from the bottoms of the furnaces 1A and 1B are supplied to a blast furnace and a sintering machine as the iron manufacturing raw material.

140. 发明专利

JPS63205191A METHOD OF RECOVERING FURNACE DUST 失效
公开(公告)号：JPS63205191A
公开(公告)日：1988-08-24
申请号：JP3542087
申请日：1987-02-18
申请人： BURITSUKUMONTO & ASSOC INC
发明人： FURANSHISU EICHI BURITSUKUMONT
IPC分类号： B09B3/00 , C22B1/24 , C22B7/02 , C22B13/02 , C22B19/04 , C22B19/34

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