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1. 发明专利

JPH06304489A METHOD FOR PULVERIZING PLASTIC MATERIAL 失效
公开(公告)号：JPH06304489A
公开(公告)日：1994-11-01
申请号：JP12051093
申请日：1993-04-23
申请人： MITSUI SHIPBUILDING ENG , PLAST SHIYORI SOKUSHIN KYOKAI
发明人： MURATA KATSUHIDE , TEZUKA NORIO , SATO KENJI , KAJI MITSUO
IPC分类号： B02C13/18 , B02C18/00 , B29B13/10 , B29B17/00 , B29B17/04 , B29K105/26 , B02C18/44
摘要： PURPOSE:To provide a method for pulverizing plastic material wherein the kind of the applicable plastic material is not limited and the mean particle diameter of particles is regulated to the desirable size of the degree not larger than specified mum and also the plastic material is treated at a low cost. CONSTITUTION:A mixed raw material being in a state wherein respective plastic materials having different elasticity or impact resistance such as low density polyethylene, high density polyethylene, polypropylene, polystyrene, polyethylene, terephthalate and polyvinyl chloride are mixed is coarsely crushed in particle diameter of about 5 mm by a coarse crusher 2. Thereafter the coarse granular material obtained after coarse crushing is mechanically pulverized at ordinary temperature by a pulverizer using an internal classification method wherein shearing force and impact force become main stress controlling pulverization. Fine powder obtained after such pulverization is taken out through a bag filter 3 and a blower 4.

2. 发明专利

JPH10238970A HIGH TEMPERATURE AIR HEATER AND WASTE DISPOSAL APPARATUS 失效
公开(公告)号：JPH10238970A
公开(公告)日：1998-09-11
申请号：JP4608997
申请日：1997-02-28
申请人： MITSUI SHIPBUILDING ENG
发明人： NANBA MASAO , TOMOYASU SUMINAO , KIUCHI HIDEHIRO , URAYAMA TERUO , TEZUKA NORIO
IPC分类号： F23G5/027 , F23G5/14 , F23G5/16 , F23G5/46 , F28D7/12
摘要： PROBLEM TO BE SOLVED: To provide a high temperature air heater 22 capable of reducing wear and damage of a tip end of a refractory protective tube caused on the basis of a contact with high temperature corrosive gas flow. SOLUTION: In a high temperature air heater 22 for heating air to be heated that heat exchanges high temperature gas G2 through a heat transfer tube 3a provided in the atmosphere of the high temperature gas G2 and including a refractory protective tube 30 on the surface thereof and that flows in the heat transfer tube 3a, a tip end 33 of the refractory protective tube is formed into a protruded configuration having reduced resistance against the high temperature gas G2 flow. With the aid of the tip end 33 of the protruded configuration there is moderated thermal influence such as concentration of thermal stress caused by a contact with the high temperature gas G2 flow, and hence there are reduced damages such as wear and crack of the tip end 33.

3. 发明专利

JPH09178143A WASTE PROCESSING APPARATUS 失效
公开(公告)号：JPH09178143A
公开(公告)日：1997-07-11
申请号：JP33321895
申请日：1995-12-21
申请人： MITSUI SHIPBUILDING ENG
发明人： HATTA NAOKI , SHIMAMURA KAZUO , TEZUKA NORIO
IPC分类号： F23G5/44 , F23G5/00 , F23G5/027 , F23G7/00
摘要： PROBLEM TO BE SOLVED: To effectually slug scattered ash and tiles and pebbles at a low cost. SOLUTION: A storage chamber 20 is provided at an upper portion in a burning melting furnace, which is arranged at a location extended to the outside from an internal wall surface of the burning melting furnace 3. A distance H between a bottom surface of the storage chamber 20 and a slug discharge hole 21 in the burning melting furnace bottom part is set to be 5m or more. A screw feeder 23 rotated by a motor 22 is mounted on the storage chamber 20, and the screw feeder 23 has a conveyance inlet 24 in the upper part thereof. Scattered ash (g) is conveyed into the conveyance inlet 24 when an opening/ closing door 25 is opened, and is conveyed to the storage chamber 20 with the screw feeder 23. The scattered ash (g) is compressed at this time, to form a scattered ash compression part which is further heated with combustion heat in the burning/melting furnace. The melted scattered ash flows down along the internal wall surface of the burning melting furnace to form slug in a water tank 11.

4. 发明专利

JPH09178134A APPARATUS AND METHOD FOR PROCESSING WASTE 失效
公开(公告)号：JPH09178134A
公开(公告)日：1997-07-11
申请号：JP33703995
申请日：1995-12-25
申请人： MITSUI SHIPBUILDING ENG
发明人： KIDOGUCHI AKIRA , KANDA NOBUYASU , ITO HIDENOBU , HATTA NAOKI , TEZUKA NORIO
IPC分类号： F23G5/04 , F23G5/00
摘要： PROBLEM TO BE SOLVED: To prevent melting and slugging of an ash fraction and the like from failing owing to insufficient temperature upon combustion of produced low temperature carbonization gas and char by removing water in a waste and then thermally decomposing the waste. SOLUTION: A heating medium from a conduit 21b such as air is introduced into a dryer 1, which is used as a heating source to heat and dry water in the waste. The waste after dried is carried with a carrier 3 to a thermal decomposition reactor 4 for thermal decomposition. For a drying method, there may be used a direct heating one for directly introducing air of the heating medium to a waste or an indirect heating one for indirectly heat exchanging the waste and air of the heating medium, or a combined one. The heating medium containing water vapor after the use in the case of the direct heating method and the combined one and the water vapor produced in the indirect heating method are introduced into an outlet side of combustion waste gas from a combustion melting furnace 9 through a conduit 21c, and odor components are combusted and removed. A part of the water vapor and the heating medium may be properly introduced into the combustion melting furnace 9 through a conduit 22 to prevent excessively high temperature in the furnace.

5. 发明专利

JPH09166314A MOLTEN SLAG WATER GRANULATING DEVICE 失效
公开(公告)号：JPH09166314A
公开(公告)日：1997-06-24
申请号：JP32701995
申请日：1995-12-15
申请人： MITSUI SHIPBUILDING ENG
发明人： TEZUKA NORIO , HATTA NAOKI , TAKAHASHI YOICHI , MIYAJI TAKESHI
IPC分类号： F23G5/24 , F23J1/08
摘要： PROBLEM TO BE SOLVED: To easily and simply prevent the molten slag from a slag discharge port from being cooled or hardened, and to prevent the port from being clogged. SOLUTION: Floats 2 are provided densely on the water level 4 in a molten slag water granulating device 1 to water-granulate the molten slag (f) flowing down through a slag discharge port 17 of a smelting furnace 15 to discharge the molten slag (f). The floats 2 are formed of the metallic or ceramics material, and the outer surface shape is formed spherical, oblong, egg-shaped, or cylindrical so as to be easily turned on the water level 4. In addition, the molten slag water granulating device 1 is provided on a waste treatment equipment in which the wastes such as the municipal refuse is thermally cracked, the thermally cracked stuff is burnt and melted, and finally discharged as the waste gas and the molten slag (f).

6. 发明专利

JPH07285668A DISTRIBUTOR FOR GAS-SOLID MIXED LOW 失效
公开(公告)号：JPH07285668A
公开(公告)日：1995-10-31
申请号：JP7743794
申请日：1994-04-15
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , TAKAHASHI YOICHI , NONAKA MASAAKI , KODAMA YOSHIHIRO , SHIRAKAWA MASHINORI
IPC分类号： B65G53/56
摘要： PURPOSE:To provide a distributor capable of uniformly distributing a gas-solid mixed flow including a mixture of a waste plastic bulk material and air. CONSTITUTION:Thjis distributor has a transfer pipe 1 of a gas-solid mixed flow A mixing a bulk material and gas, a baffle material 2 filled in this transfer pipe l and a plural number of branch pipes 3 having the same opening area connected to the outlet of the transfer pipe 1 in the rear stream of the baffle material 2.

7. 发明专利

JPH0724352A GRINDING AND CRUSHING OF SOLID AND GRINDING/CRUSHING DEVICE 失效
公开(公告)号：JPH0724352A
公开(公告)日：1995-01-27
申请号：JP17282193
申请日：1993-07-13
申请人： MITSUI SHIPBUILDING ENG , HATAMURA YOTARO
发明人： HATAMURA YOTARO , TEZUKA NORIO , HATTA NAOKI
IPC分类号： B02C23/00 , B02C23/06 , B02C23/18
摘要： PURPOSE:To grind adequately even with a liquid at a comparatively higher boiling point, control heat generated in a solid as an object to be ground or crushed, prevent sufficiently the object from degrading qualitatively due to qualitative alteration or odor and effective component dissipation, and allow the adequate grinding and crushing of a solid which is technically difficult to grind and crush on account of the softening, deformation and fusion of the object, thus widening the selection range of types of liquid to be used. CONSTITUTION:A space for grinding and crushing action between a rotary blade 5 and a fixed blade 6 is decompressed using a decompression device 13 such as a vacuum pump. Further, a liquid such as water is sprayed into the space, and a pressure is applied to a solid 7 by rotation of the rotary blade 5 to grind and crush the solid. The decompression is adjusted to such a degree that the temperature is lower than a temperature at which it is impossible to grind and crush the solid due to the qualitative degradation of the solid 7 by its temperature rise or the softening, qualitative alteration and fusion of the solid 7 by its temperature increase, and the boiling point of liquid such as water lowers. The quantity of the liquid is to be determined by the total surface area of the solid 7 or a ground and crushed product to be obtained in accordance with the type of the liquid.

8. 发明专利

JPH0633079A METHOD FOR TREATING PLASTIC 失效
公开(公告)号：JPH0633079A
公开(公告)日：1994-02-08
申请号：JP18532692
申请日：1992-07-13
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , SATO KENJI , KATO YUICHI
IPC分类号： C10L1/32 , C10L10/18
摘要： PURPOSE:To obtain a method for treating a plastic capable of carrying out combustion treatment of the plastic in a stable state and simultaneously providing a fuel excellent in handleability for transportation, storage, etc. CONSTITUTION:A waste matter 11 containing a plastic is crushed in a crusher 20 to afford a crude crushed material 12 containing the plastic, which is then heated and pressurized so as to reduce the volume by a volume-reducing machine 30 and the plastic is pushed out as a stick-like semi-molten solid material 13. The plastic is pulverized with a pulverizer 50 under cooling the semi- molten solid material 13 to afford a pulverized material 14 containing the plastic and the pulverized material 14 is mixed with a liquid containing a surfactant in a mixing tank 60 to provide a slurry-like fuel 15, which is subjected to jet combustion in a combustion furnace 80.

9. 发明专利

JPH11226728A METHOD FOR UNDERWATER-COATING WATER REPELLENT AGENT COATING LAYER AND DEVICE THEREFOR, AND WELDING METHOD 失效
公开(公告)号：JPH11226728A
公开(公告)日：1999-08-24
申请号：JP3250798
申请日：1998-02-16
申请人： MITSUI SHIPBUILDING ENG
发明人： KOMORI MITSURU , TEZUKA NORIO , IWASAKI TORU , FUKUDA KAZUHIRO
IPC分类号： B05B17/00 , B23K9/00 , B23K31/00 , B23K33/00 , B23K35/36
摘要： PROBLEM TO BE SOLVED: To provide an underwater coating device, in which a water repellent agent coating layer is formed at the welding position as the pre-treatment of welding to execute the underwater welding of high reliability. SOLUTION: The underwater coating device for the water repellent agent coating layer is composed of a water repellent agent coating nozzle, submergible pump, CO2 gas cylinder and water repellent agent supplying pump. The water repellent agent coating nozzle 1 is composed of parts with a columnar cylinder body 2 and a center nozzle 4 for ejecting the water repellent agent, disposed at the axis of the cylinder body 2. Further, a water flowing passage 3, whose cross section is annular state in the wall of the cylinder body 3 and extended in the axial direction of the cylinder body and divergently opened at the tip part, is formed, and a gas flowing passage 5 is formed between the inner peripheral surface of the cylinder body 2 and the outer periphery of the center nozzle 4, and then, the inlet of the water flowing passage 3 with the submergible pump, the inlet of the gas flowing passage 5 with the CO2 gas cylinder and further, the center nozzle 4 with the repellent agent supplying pump, are connected.

10. 发明专利

JPH11199859A SEALING MATERIAL FOR WATERTIGHT USE 失效
公开(公告)号：JPH11199859A
公开(公告)日：1999-07-27
申请号：JP490398
申请日：1998-01-13
申请人： MITSUI SHIPBUILDING ENG
发明人： KOMORI MITSURU , TEZUKA NORIO , IWASAKI TORU , FUKUDA KAZUHIRO
IPC分类号： C09K3/10
摘要： PROBLEM TO BE SOLVED: To obtain the subject high-performance sealing material readily applicable onto a defect causing a leak of water when such a leak occurred in a vessel or pipe. SOLUTION: This sealing material for watertight use is obtained by water repelling treatment of the surface of a substrate 2 made of plate or textile fabric to afford the surface with such a coating layer 3 as to be capable of holding an air film on the contact surface when the surface 2 contacted with water, and also by providing the edges of the plate surface bearing the coating layer 3 with a double-sided adhesive tape 4. When this sealing material is applied onto a defect of a vessel or pipe by the aid of the double-sided adhesive tape 4, a leak of water can be prevented by an air film formed on the contact surface between the coating layer 3 and water, and even the presence of a small gap between this sealing material and the vessel or pipe surface is acceptable.

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