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31. 发明专利

JP2002283338A CONCRETE CHIPPING DEVICE AND METHOD 失效
公开(公告)号：JP2002283338A
公开(公告)日：2002-10-03
申请号：JP2001089519
申请日：2001-03-27
申请人： NISHINIPPON RYOKAKU TETSUDO KK , KOTOBUKI GIKEN KOGYO KK
发明人： MATSUDA YOSHIFUMI , NAGAI KATSUSHI
IPC分类号： B28D1/00
摘要： PROBLEM TO BE SOLVED: To provide a concrete chipping device which is capable of performing a chipping operation without erecting a scaffolding and safely carrying out a work including an inspection of a spot to be chipped from below without difficulty, so as to prevent water or concrete fractions from being scattered, in a method for chipping the concrete of a concrete flooring at an elevated structure from below by means of a water jet technique. SOLUTION: A base 4 is mounted, in a freely transferable manner, on a rear body 2 of a truck 1 and a boom 8 is installed on the base 4 in a freely gyrating and elevating manner. Further, a nozzle 14 for jetting high-pressure water is fitted to the tip of the boom 8 and a cup 15 is attached to the nozzle 14. When the concrete is chipped, the boom 8 is gyrated and elevated and the cup 15 is applied to the spot to be chipped. Next, the high-pressure water is jetted to the chipping surface inside the cup 15 from the nozzle 14.

32. 发明专利

JP2002242123A DEVICE FOR CHIPPING CONCRETE 失效
公开(公告)号：JP2002242123A
公开(公告)日：2002-08-28
申请号：JP2001041631
申请日：2001-02-19
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： NAGAI KATSUSHI
IPC分类号： E01C23/12 , B28D1/00 , E04G23/08
摘要： PROBLEM TO BE SOLVED: To provide a device for chipping concrete of a concrete structure by a water jet, which is prevented from being a hindrance to other vehicles on account of being parked on a frontage road by enabling a self-propelled vehicle loaded with a high pressure water generator to move freely even in a narrow space bristling with columns under a viaduct. SOLUTION: A loading platform 12 of the crawler type self-propelled vehicle is loaded with the high pressure water generator 14, a telescopic boom 16 capable of slewing and derricking motions, whose end is provided with a chipping tool 15, a generator 17, and a hydraulic control device 18. The self-propelled vehicle is taken as a crawler type so as to be capable of making a small turn and weaving among the columns standing together in a large numbers under the viaduct. One self-propelled vehicle is loaded with the whole of the device for chipping the concrete in order to smooth out movement to other areas and increase an execution cycle.

33. 发明专利

JP2002143707A WET TYPE STIRRING BALL MILL 失效
公开(公告)号：JP2002143707A
公开(公告)日：2002-05-21
申请号：JP2000344897
申请日：2000-11-13
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： INKIYO MITSUGI , TAWARA TAKASHI
IPC分类号： B02C17/16 , B02C17/18
摘要： PROBLEM TO BE SOLVED: To provide a wet type stirring ball mill enhancing a separation performance of beads and a motive power original unit, i.e., a motive power required for pulverizing a slurry of unit weight. SOLUTION: A disk 5 fixed to a main shaft 4 rotated and driven making a motor as a driving source and a separator comprising a blade 6 connecting the disk 5 and forming a form of impeller are arranged in a stator 1 comprising a closed cylindrical container over a whole length. A lead out aperture 3 communicating with a discharge hole 2 of an axis center is formed on an upper part of the main shaft 4. Zirconia is filled in the stator 1 by 0.4 L of a stator internal volume L.

34. 发明专利

JPH11253705A SOLID-LIQUID SEPARATION METHOD AND APPARATUS FOR WATERCONTAINING SOLID MATTER 失效
公开(公告)号：JPH11253705A
公开(公告)日：1999-09-21
申请号：JP7120898
申请日：1998-03-06
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： OHINATA TETSUO
IPC分类号： B01D21/24 , B04B1/20 , C02F1/52 , C02F11/12
摘要： PROBLEM TO BE SOLVED: To provide a method capable of significantly heightening the dewatering efficiently by the same solid-liquid separation apparatus as a conventional one by improving the gel property of precipitated solid matter and to provide an apparatus for carrying out the method, regarding a solidliquid separation apparatus for sludge. SOLUTION: Suspended solids in an object liquid to be treated are flocculated and precipitated and the resultant precipitated solids are heated and then separated into solids and a liquid. In a screw decanter type centrifugal separator comprising a bowl 1 rotated at high speed and a screw conveyer 3 installed coaxially with the bowl and rotating in the same direction at a different rotation speed, a heating apparatus 5 is installed in the outer wall of the bowl in the deposition region of solids 4 near a discharge outlet, so that solids deposited in the bowl inner wall can be separated by solid-liquid separation while being heated.

35. 发明专利

JP2936382B2 失效
公开(公告)号：JP2936382B2
公开(公告)日：1999-08-23
申请号：JP31759094
申请日：1994-11-28
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： KIHARA TOSHUKI
IPC分类号： B02C13/14 , B02C13/18 , B02C13/286

36. 发明专利

JPH1128376A ROTOR FOR CENTRIFUGAL CRUSHER 失效
公开(公告)号：JPH1128376A
公开(公告)日：1999-02-02
申请号：JP20090997
申请日：1997-07-10
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： MIZUNO MASAKI
IPC分类号： B02C13/14 , B02C19/00
摘要： PROBLEM TO BE SOLVED: To improve the crushing efficiency by forming dead beds with which a raw material to be crushed is in collision on the upstream side of a site where an extension line of a virtual chord passing through a discharge point of the raw material to be crushed and crossing orthogonally a virtual radius line of a rotor in a system for crushing the raw material to be crushed in collision with a crushing body. SOLUTION: Bit mounting plates 104 for mounting bits 103 are set on the rotor peripheral edge side ends of side plates 102 set at the given intervals on rotor 100. Top sections 107 of the whole dead forming plates 102 are positioned closer to the central side of the rotor 100 than a virtual chord L2 passing through a discharge point (a) of a raw material 200 to be crushed and crossing orthogonally a virtual radius line L1 of the rotor 100 are set on the inner side of the side plates 102. Dead beds 201 to be formed all over from the dead forming plates 106 to the bits 103 are so constituted as to collide with the upstream side in the rotor rotating direction of a site (b) where an extension line of the virtual chord L2 is in collision with a body 300 to be crushed, by which the attenuation of crushing energy is controlled and the crushing efficiency is improved.

37. 发明专利

JPH09313985A HORIZONTAL CENTRIFUGAL CONCENTRATION APPARATUS 失效
公开(公告)号：JPH09313985A
公开(公告)日：1997-12-09
申请号：JP15491796
申请日：1996-05-27
申请人： KOTOBUKI GIKEN KOGYO KK , KUBOTA KK
发明人： YAMANO TAKASHI , OYAMA EIJI , FUKUNAGA MINORU , MIZUKAMI HIROYOSHI
IPC分类号： B04B1/20
摘要： PROBLEM TO BE SOLVED: To attempt to improve the discharge of separated water from a horizontal centrifugal concentration apparatus and its concentration efficiency. SOLUTION: In a horizontal centrifugal concentration apparatus in which a screw conveyer 3 is set in a rotary bowl 1, sludge is supplied from the front and rear intermediate parts of a ring-shaped space 8 through a supply route 12, a separated liquid discharge route 9 is formed in one end part of the conveyer 3, and a concentrated liquid discharge route 13 is formed in the other end part of the conveyer 3. Besides, weir plates 5a, 5b are installed on the peripheries of the front and rear end parts of the inner cylinder 4 of the conveyer 3, and a screw blade 6 is set between them. Thus, an air layer is formed on the peripheral surface part of the cylinder 4, preventing the adhesion of scum in the separated water to the cylinder 4.

38. 发明专利

JPH0949251A WEAR PLATE OF MUCK TRANSFER CONVEYOR IN MUCK LOADER, AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0949251A
公开(公告)日：1997-02-18
申请号：JP20308895
申请日：1995-08-09
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： SAKAMOTO KEISUKE
IPC分类号： E02F7/04 , B65G19/10
摘要： PROBLEM TO BE SOLVED: To use a material having high wear resistance by fixing a material, which can be easily machined and is separately formed, to a site, where machining is needed for attaching a countersunk bolt. SOLUTION: A wear plate 6 is formed from a material having high surface hardness and an area, where a countersunk bolt 9 is to be attached, is cut off by fusing, in a rectangular form, using a gasket to form a hole 11 and a chip 13, in which a funnel-like countersunk recess 12 for engagement with a head 9a of a countersunk bolt 9 is formed, is fitted into the hole 11 and the periphery of the chip is welded to fix it. The cut surfaces of the hole is such that the chip can be fitted into the hole and welded. And by forming a hole in the chip after the chip is welded, a hole of predetermined dimension can be precisely formed at a predetermined position and if a chip in which a hole is formed before being welded is used, the hole can be easily formed.

39. 发明专利

JPH08281147A CLEANING OF PRESSURED CENTRIFUGAL CONCENTRATOR 失效
公开(公告)号：JPH08281147A
公开(公告)日：1996-10-29
申请号：JP8915395
申请日：1995-04-14
申请人： KOTOBUKI GIKEN KOGYO KK , SANKI ENG CO LTD
发明人： MATSUMURA HIDEKAZU , ARAO IZUMI
IPC分类号： B04B1/20 , B04B15/06
摘要： PURPOSE: To enhance the cleaning effects on a pressured centrifugal concentrator and, at the same time, make the supply of cleaning water unnecessary during a cleaning operation by reducing the liquid quantity of a bowl to a lower level than a full fill state, and allowing the bowl to do a cleaning work at a lower rotating speed than the critical number of rotation in a consequent state that a void is created, after the completion of treating sludge. CONSTITUTION: A pressured centrifugal concentrator with a screw conveyor 2 insetted in a freely rotatable manner, in a bowl 1, is subjected to a cleaning work after treating sludge-therewith in its steady-state loaded operation. In this case, first, a separation liquid adjusting valve 5 is closed, and a concentrate adjusting valve 6 is opened. Thus, a cleaning water is supplied to the bowl 1 for about 10 minutes until the bowl 1 stops to discharge a concentrate from the concentrator. After that, the liquid is drained in such a state that the separation liquid adjusting valve 5 is opened and the concentrate adjusting valve 6 is closed. Further, both adjusting valves 5, 6 are closed after the residue in the bowl 1 is reduced to about 1/2. In addition, the bowl is operated at a lower rotating speed than the critical number of rotation, at which the bowl 1 is exposed to 1G or less in such a state that a void is present in the bowl 1. Thus, the concentrator is cleaned and rinsed.

40. 发明专利

JPH07317103A MUCK LOADING MACHINE 失效
公开(公告)号：JPH07317103A
公开(公告)日：1995-12-05
申请号：JP11011194
申请日：1994-05-25
申请人： KOTOBUKI GIKEN KOGYO KK
发明人： SAKAMOTO KEISUKE
IPC分类号： E02F7/04 , B65G17/06
摘要： PURPOSE:To eliminate plugging due to muck by steepening a gradient for positive muck transfer in a conveyor on a muck-loading machine, and by shortening length of the conveyor for compactness, and by eliminating relative movement with muck for less wear of the conveyor. CONSTITUTION:A dish-like bucket 21 is securely bolted to the inside surface of each link 12 of a roller chain driven by means of a sprocket. Each bucket at its one side is formed as a circular curved part 21a with the shaft 18 of a roller 17 as center of curvature. The other side is similarly formed as a circular curved part 21b. In transferring muck, the curved part 21a at the bucket one side covers the curved part 21b at the adjoining bucket other side. In circumferentially turning the sprocket, the curved parts are turned with the shaft 18 as center to prevent opening between the curved parts.

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