-
公开(公告)号：US4166609A
公开(公告)日：1979-09-04
申请号：US825595
申请日：1977-08-18
CPC分类号： B22D43/008 , G01F23/242
摘要： In a scum removing apparatus including a suction source, a suction pipe having one end communicating with the suction source and the other free end positioned above the surface of scum to suck the scum and apply water to the sucked scum in the vicinity of the free end, and a scum separator provided at an intermediate portion of the suction pipe, a device for detecting the level of the scum surface relative to the free end of the suction pipe. The detecting device comprises a pair of electrode rods provided on the outer periphery of the free end of the suction pipe and projecting from the pipe end by a suitable length, and means for detecting variations in the electric resistance between the electrode rods. The electrode rod comprises a tube having accommodated therein a slider slidingly projectable from the front end of the tube and slidingly retractable into the tube. The slider is supported by a spring in its retracted position within the tube and connected to means for pushing out the slider from the front end of the tube against the action of the spring.
摘要翻译： 在包括抽吸源的抽气装置中，具有与吸入源连通的一端的吸入管和位于浮渣表面上方的另一个自由端吸入浮渣并在自由端附近的吸附浮渣上施加水 以及设置在吸入管的中间部分的浮渣分离器，用于检测浮渣表面相对于吸入管的自由端的水平的装置。 检测装置包括一对电极杆，设置在吸管的自由端的外周上并且从管端突出适当的长度，以及用于检测电极棒之间的电阻变化的装置。 电极杆包括容纳有从滑块可从管的前端突出并滑动地伸缩到管中的滑块的管。 滑块由弹簧支撑在管内的缩回位置，并连接到抵抗弹簧的作用从管的前端推出滑块的装置。
-
公开(公告)号：US4131303A
公开(公告)日：1978-12-26
申请号：US812683
申请日：1977-07-05
摘要： A telescopic assembly for pipes for conveying powdery to granular materials entrained in an air or like gaseous stream comprises two pipes of different diameters coaxially fitting one within the other and axially slidable relative to each other, a labyrinth packing provided around a front end portion of the inner pipe for preventing leakage of the stream or ingress of the atmosphere through the clearance between the two pipes, and a scraper attached by a plate spring to the retainer ring of the labyrinth packing on the front end of the inner pipe and in pressing contact with the inside peripheral surface of the outer pipe. Rollers carried by the outer pipe engage the outer surface of the inner pipe and aid in maintaining a uniform clearance between the two pipes.
摘要翻译： 用于将粉末输送到夹带在空气或类似气体物流中的颗粒材料的管道的伸缩组件包括两个不同直径的管，其彼此同轴地配合在一起并且可相对于彼此轴向滑动;迷宫式密封件围绕着 内管，用于防止两管之间的间隙中的气流或气流的泄漏;以及刮板，其通过板簧附接到内管前端的迷宫式密封圈的保持环上，并与 外管的内周面。 由外管承载的辊子与内管的外表面接合，有助于保持两管之间的均匀间隙。
-
公开(公告)号：US4077615A
公开(公告)日：1978-03-07
申请号：US802656
申请日：1977-06-02
CPC分类号： F27D3/1572
摘要： A suction head for apparatus for removing slag or scum from the surface of molten metal or the like includes a suction pipe having a scum inlet at one end and communicating at the other end with a suction source by way of a conduit, a scum separator, etc. The suction head further includes a water cooling jacket provided around the suction pipe at least close to the scum inlet, and a water injector for injecting the water in the jacket into the suction pipe at a position close to the scum inlet. The water injection comprises a first nozzle for forcing out the water toward the axis of the suction pipe to cause the water to impinge against the sucked scum and to thereby rapidly solidify the scum on cooling, and a second nozzle for injecting the water into the suction pipe along the inner peripheral surface thereof to prevent the adhesion of the scum to the inner surface of the suction pipe. When desired, a water flow channel from the jacket to the first and second nozzles is provided with a shutter for closing the channel in an emergency to prevent the water from falling onto the molten metal.
摘要翻译： 用于从熔融金属等表面去除渣渣或浮渣的设备的吸头包括一个吸入管，其一端具有浮渣入口，另一端通过导管与抽吸源连通，浮渣分离器， 抽吸头还包括设置在至少靠近浮渣入口的吸入管周围的水冷却套，以及用于将护套中的水注入靠近浮渣入口的位置的吸入管中的水喷射器。 注水包括用于迫使水朝向抽吸管的轴线的第一喷嘴，以使水撞击吸入的浮渣，从而在冷却时快速固化浮渣，以及用于将水注入吸力的第二喷嘴 沿其内周面形成管，以防止浮渣与吸入管的内表面的粘附。 当需要时，从护套到第一和第二喷嘴的水流通道设置有用于在紧急情况下关闭通道的闸门，以防止水落入熔融金属。
-
公开(公告)号：US4160662A
公开(公告)日：1979-07-10
申请号：US804530
申请日：1977-06-08
CPC分类号： F27D3/1572
摘要： A method of removing slag or like scum from the surface of molten metal by suction. A tubular gaseous stream directed toward the surface of scum is formed, with its interior space communicating with a suction source such as an ejector or vacuum pump. The gaseous stream hampers the inflow of external air into the suction zone surrounded by the stream. On reaching the scum surface, the gaseous stream flows inward along the scum surface and is thereafter drawn toward the suction source, so that the stream acts to blow the scum radially inwardly of the stream and thereafter raises the scum from the surface of molten metal, thus permitting efficient removal of the scum with a relatively low suction. A scum removing apparatus for practicing this method includes a suction source, a suction head communicating with the suction source, and annular nozzle means provided around the suction head for forming a tubular gaseous stream flowing toward the surface of scum.
摘要翻译： 通过抽吸从熔融金属表面除去渣渣等浮渣的方法。 形成指向浮渣表面的管状气流，其内部空间与诸如喷射器或真空泵的抽吸源连通。 气流阻碍外部空气流入由流包围的吸入区。 在到达浮渣表面时，气流沿着浮渣表面向内流动，然后被抽吸到抽吸源，使得流用于将流体径向向内吹入浮渣，然后从熔融金属表面升起浮渣， 从而允许以相对低的吸力有效地去除浮渣。 用于实施该方法的浮渣除去装置包括抽吸源，与抽吸源连通的抽吸头以及围绕抽吸头设置的环形喷嘴装置，用于形成朝向浮渣表面流动的管状气流。
-
公开(公告)号：US4752315A
公开(公告)日：1988-06-21
申请号：US891267
申请日：1986-07-27
申请人： Katsumi Nagasaki , Yoshihiro Inoue , Tetsuo Momose
发明人： Katsumi Nagasaki , Yoshihiro Inoue , Tetsuo Momose
CPC分类号： F27D3/1572
摘要： A nozzle or nozzles for spraying cooling water are disposed at the lower end of a slag suction path. A cooling water down-flow passage is provided on the outer periphery of an inner tube which constitutes a slag suction path. A water sump is provided below the cooling water down-flow passage, the water sump being located lower than the each nozzle. A lower end opening of the cooling water down-flow passage is disposed lower than the each nozzle and is submerged in water in the water sump. The cooling water down-flow passage, except the lower end opening, is adapted to be closed up. When the cooling water down-flow passage is closed up, water in the passage is stopped by atmospheric pressure acting upon the surface of the water in the water sump, so that it is prevented from flowing down.
摘要翻译： 用于喷射冷却水的喷嘴或喷嘴设置在炉渣吸入路径的下端。 在构成炉渣吸入路径的内管的外周设有冷却水下流路。 在冷却水下流通道的下方设置有水槽，水槽位于比每个喷嘴低的位置。 冷却水下流通道的下端开口设置成比每个喷嘴低，并且浸没在水槽中的水中。 除了下端开口之外，冷却水下流通道适于封闭。 当冷却水下流通道关闭时，通过作用在水槽中的水表面的大气压力阻止通道中的水，从而防止其向下流动。
-
公开(公告)号：US3979108A
公开(公告)日：1976-09-07
申请号：US541139
申请日：1975-01-15
CPC分类号： F27D3/1572
摘要： Slag on the surface of a molten metal is drawn into the inlet end of a suction pipe which is provided with a water cooling jacket having orifices permitting the flow of water to the inlet end of the pipe for pelletizing the entering slag. The suction pipe is connected to a separator hopper, which is evacuated by an exhaust pump to create the suction, and which includes a slag discharge port closed by an openable valve. A sealed auxiliary hopper receives slag from the discharge port of the separator hopper when the valve thereof is opened, and also includes a slag discharge port closed by an openable valve. The hopper discharge valves are operated alternately by suitable control means so that when one valve is open the other is closed, thereby enabling slag to be continuously sucked, separated, and intermittently discharged from the auxiliary hopper.
摘要翻译： 在熔融金属表面上的炉渣被吸入吸入管的入口端，吸入管具有水冷套管，该水冷套管具有允许水流入管道入口端的孔口，用于造粒进入炉渣。 抽吸管连接到分离器料斗，其由排气泵抽真空以产生抽吸，并且包括由可打开阀关闭的排渣口。 密封辅助料斗当阀门打开时从分离料斗的排出口接收炉渣，并且还包括由可打开的阀门关闭的排渣口。 料斗排出阀由合适的控制装置交替操作，使得当一个阀打开时，另一个阀关闭，从而使得渣能够从辅助料斗连续地吸入，分离和间歇地排出。
-
7.发明授权Tunnel support structure using built-up pipe support set, and unit pipe support member therefor 失效隧道支撑结构采用组合管支撑组件及单元管支撑构件
公开(公告)号：US4095433A
公开(公告)日：1978-06-20
申请号：US730343
申请日：1976-10-07
申请人： Minoru Yamamoto , Juntaro Honda , Katsumi Nagasaki , Yoshito Seto
发明人： Minoru Yamamoto , Juntaro Honda , Katsumi Nagasaki , Yoshito Seto
CPC分类号： E21D11/00
摘要： Structure for supporting the excavated wall of a tunnel comprises a plurality of unit pipe support members connected in end-to-end relation by pipe couplings with lap joints, or by flanges on the ends of the support members, to form a plurality of sub-assemblies which are then connected by a closure member to form a pipe support having a periphery substantially conforming to the periphery of the tunnel wall, and having ports through which the pipe support can be filled with mortar or concrete. The unit pipe support members are substantially the same size and shape for mass production from ductile cast iron or cast steel and are provided with integral reinforcing ribs.
摘要翻译： 用于支撑隧道的挖掘墙的结构包括多个单元管支撑构件，其通过具有搭接接头的管接头或通过支撑构件的端部上的凸缘以端对端关系连接，以形成多个子构件， 组件然后通过闭合构件连接以形成具有基本上符合隧道壁的周边的外围的管道支撑件，并且具有端口，管道支撑件可以通过该端口填充有砂浆或混凝土。 单元管支撑构件具有与球墨铸铁或铸钢大量生产基本相同的尺寸和形状，并且具有整体的加强筋。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.021 秒)