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11. 发明专利

JPH067639A METHOD FOR DENITRIFYING WASTE COMBUSTION GAS 失效
公开(公告)号：JPH067639A
公开(公告)日：1994-01-18
申请号：JP770393
申请日：1993-01-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORII ATSUSHI , KANEKO SHOZO , IMAMOTO TOSHIHIKO , SERIZAWA AKIRA , NAITO OSAMU , ONISHI TOSHIYUKI , KOBAYASHI TAKAFURU , IIDA KOZO
IPC分类号： B01D53/02 , B01D53/56 , B01D53/58 , B01D53/86 , B01D53/94 , B01J20/06 , B01J20/10 , B01D53/36 , B01D53/34
摘要： PURPOSE:To denitrify waste combustion gas with ultrahigh efficiency by installing denitrifying catalyst layer in the specified temp. range of waste combustion gas temp., injecting ammonia whose molar number is equivalent to or more than that of nitrogen oxide on the upstream side of the layer and removing excess ammonia by absorption with an ammonia absorber on the downstream side. CONSTITUTION:An NH3 injection nozzle 3 and a dry denitrifier 4 having a denitrifying catalyst is installed in the temp. range of 200-600 deg.C waste combustion gas temp. At that time, NH3 whose molar number is equivalent to or more than that of NOx in the waste gas is injected, and on the downstream side is installed an air preheater 5 as a waste heat cooling means or a waste heat recovery means by which the waste gas exchanges heat with combustion gas 11 to cool the temp. of the waste gas to =30m /g specific surface area is installed and after denitrification and NH3 removal, the waste gas is released in the air through a funnel 8.

12. 发明专利

JPH057718A PRESSURE SWINGING-TYPE GAS SEPARATION APPARATUS 失效
公开(公告)号：JPH057718A
公开(公告)日：1993-01-19
申请号：JP16697291
申请日：1991-07-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： IMAMOTO TOSHIHIKO
IPC分类号： B01D53/04
摘要： PURPOSE:To heighten the function of an adsorbent in the whole region of an adsorbing tower and prevent wear and deterioration of the adsorbent due to the swinging of the adsorbent by making the flow of a raw material gas or a purge gas in the adsorbing tower uniform. CONSTITUTION:A plurality of nozzles 13, 17 which are connected with headers 14, 18 for gas supply are installed in at least one of mirror plates 12, 16 at an inlet part and an outlet part of an adsorbing tower 2 wherein an adsorbent of a PSA gas separation apparatus is filled.

13. 发明专利

JPH04122417A EXHAUST GAS TREATING DEVICE 失效
公开(公告)号：JPH04122417A
公开(公告)日：1992-04-22
申请号：JP23889790
申请日：1990-09-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： UCHIDA SATOSHI , KANEKO SHOZO , MURATA MASAYOSHI , NISHIDA SEIICHI , MURAKAMI NOBUAKI , IMAMOTO TOSHIHIKO , HASHIZAKI KATSUO , KONDOU TAKANOBU , MORII ATSUSHI
IPC分类号： B01D53/60 , B01D53/74 , F01N3/08
摘要： PURPOSE:To enhance the treatment efficiency of exhaust gas and also to reduce power consumption by regulating the charge wave-form for plasma generation which is impressed between the electrodes of a plasma reactor to either a pulse charge wave-form or a triangular charge wave-form of high voltage instead of the conventional charge wave-form of a sine wave. CONSTITUTION:Exhaust gas is introduced into a plasma reactor 5 via an exhaust pipe 4 from a cyclone collector 3. A variable power source 16 impresses optimum current, voltage, a charge interval, rising time and a triangular charge wave-form of maximum voltage between the electrodes of the plasma reactor 5 in accordance with a signal equivalent to the optimum degree of removal for the respective components (NOx, N2O, SOx) given from a program generator 10. In other words, this variable power source 16 controls the charge interval (t) of the triangular charge wave-form, the rising time tau and the maximum voltage Vp and sets the optimum value in the relation of power consumption and the degree of removal for NOx, N2O, SOx. The variable power source 16 impressed this optimum value between the electrodes of the plasma reactor 5.

14. 发明专利

JPH03159939A EQUIPMENT FOR PRODUCING ULTRAFINE POWDER 失效
公开(公告)号：JPH03159939A
公开(公告)日：1991-07-09
申请号：JP29624389
申请日：1989-11-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： IMAMOTO TOSHIHIKO , KANEKO SHOZO , UEDA KATSUYUKI
IPC分类号： C04B7/26
摘要： PURPOSE:To efficiently obtain ultrafine powder useful as a concrete admixture by combining ultrafine pulverization treatment equipment with ultrahigh-temperature vaporizing treatment equipment and product preparation equipment so as to perform specific action. CONSTITUTION:Ultrafine pulverization treatment equipment (A) is constructed of the first coal combustion ash receiving hopper 9, an ultrafine pulverizer 10 and a classifier 11. Ultrahigh-temperature vaporization treatment equipment (B) is composed of the second ash receiving hopper 13, an ultrahigh-temperature furnace 14, a powdered coal hopper 15 for improving combustion, a primary air fan 16 for conveying the powdered coal for improving combustion, an oxygen production apparatus 17 for oxygen-enriched combustion, a silica fume cooler 18, a collector 19 and a heat recovering device 20. In product preparation equipment (C), the feed rate of ultrafine particles in the ultrafine powder hoppers 12 and 22 is controlled with feeder 23 and 24 for optimum mixing and the particles are fed into a mixer 25. The ultrafine particles produced in the above-mentioned equipment for producing ultrafine powder are rich in silica. On the other hand, molten slag 21 is rich in alumina. Thereby, the aforementioned equipment for producing the ultrafine powder has also function to separate SiO2 and Al2O3.

15. 发明专利

JPH02191527A DRY DENITRIFICATION DEVICE 失效
公开(公告)号：JPH02191527A
公开(公告)日：1990-07-27
申请号：JP778389
申请日：1989-01-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMAMURA MISAO , IMAMOTO TOSHIHIKO , KANEKO SHOZO , FUKUDA MASAATSU
IPC分类号： B01D53/94
摘要： PURPOSE:To decompose unreactive residual ammonia in the inside of a denitrification device by arranging a catalyst for removing residual ammonia to the inside of the denitrification device in the rear flow side of a denitrifying part in the dry denitrification device having the denitrifying part wherein ammonia is utilized as a reducing agent. CONSTITUTION:In a dry denitrification device 1 having a denitrifying part 2 wherein ammonia is utilized as a reducing agent, a catalyst 3 for removing residual ammonia is arranged to the inside of the denitrification device 1 in the rear flow side of the denitrifying part 2. This catalyst 3 is utilized by carrying platinum, etc., on an SiO2.Al2O3-based zeolite carrier. As a result, unreactive residual ammonia is decomposed in the inside of the denitrification device and amount of leaked ammonia can be lowered. Thereby amount of ammonia introduced into the denitrification device can be increased and high degree of denitrification is obtained. Therefore the operational range of the denitrification device is extended.

16. 发明专利

JPH026852A PRODUCTION OF DENITRIFICATION CATALYST 失效
公开(公告)号：JPH026852A
公开(公告)日：1990-01-11
申请号：JP15482388
申请日：1988-06-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： IMAMOTO TOSHIHIKO , KANEKO SHOZO , MORII ATSUSHI , IIDA KOZO
IPC分类号： B01D53/94 , B01J27/053
摘要： PURPOSE:To improve the denitrification action of a catalyst by calcining titanium oxide mixed or impregnated with an active metal oxide at 450-650 deg.C, pulverizing the calcined product, mixing the resulting powder with II type anhydrous gypsum and subjecting the mixture to molding, drying and calcining. CONSTITUTION:Titanium oxide is mixed or impregnated with at least one kind of active metal oxide and calcined at 450-650 deg.C. The calcined product is pulverized, the resulting powder is mixed with II-type anhydrous gypsum and this mixture is molded, dried and calcined to produce a denitrification catalyst. The active metal oxide may be any known active metal oxide such as the oxide of V, W, Mo, Fe, Cu, Cr or Mn. When the denitrification catalyst is formed into a honeycomb shape, glass fibers or mineral fibers may be used as the skeleton material.

17. 发明专利

JPH01228525A DENITRATING APPARATUS 失效
公开(公告)号：JPH01228525A
公开(公告)日：1989-09-12
申请号：JP5378188
申请日：1988-03-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGAYAMA SHUYA , IMAMOTO TOSHIHIKO , YAMAMURA MISAO , HASHIZAKI KATSUO
IPC分类号： B01D53/94 , B01J8/02
摘要： PURPOSE:To make the apparatus size small by installing a partition vertically and keeping a distance from the bottom of a reaction main body, setting catalyst layers in each room parted by the partition, and fitting a discharged gas entrance on the upper side wall of one room and a discharged gas exit perpendicularly on the upper wall of an other room. CONSTITUTION:A box-type main body 10 of a reaction apparatus is parted into a room (I) 12 and a room (II) 15 by a partition 11 set vertically and keeping a distance from the bottom, a discharged gas entrance 13 is fitted on the upper side wall of the room (I) 12, and a discharged gas led from the entrance is discharged from a discharge gas exit 16 fitted perpendicularly on the upper wall of the room (II) 15 after the discharged gas passes through a catalyst layer 14, U-turns, and passes through a catalyst layer 17. A space to mix a reducing agent of NOx and the discharged gas is formed near the discharged gas entrance. Thus, the apparatus size is made small.

18. 发明专利

JPH01119640A SLEEVE FOR INJECTION NOZZLE 失效
公开(公告)号：JPH01119640A
公开(公告)日：1989-05-11
申请号：JP27801887
申请日：1987-11-02
申请人： NIPPON TUNGSTEN , MITSUBISHI HEAVY IND LTD
发明人： NISHIMURA TOMIO , TOMONO SUMIHARU , TOKUMOTO HIROSHI , IMAMOTO TOSHIHIKO , UEMATSU YOSHISHIGE , KAWANAMI SHIZUO
IPC分类号： C22C29/08 , B05B1/00 , F23D11/38 , F23D99/00
摘要： PURPOSE:To simultaneously satisfy the three characteristics of thermal shock resistance, wear resistance and corrosion resistance required for the title sleeve by incorporating specific amounts of NbC, Cr3C2 and Co to WC. CONSTITUTION:A sintered hard alloy used to the sleeve for an injection nozzle is constituted of, by weight, 3.0-4.0% NbC, 0.2-0.4% Cr3C2, 4.5-5.5% Co and the balance WC. Its hardness is regulated in the range of 92.5-91.5; HRA or a part or total of Cr3C2 is said compsn. is substituted by Cr. The sleeve for an injection nozzle contg. said compsn. has excellent wear resistance, thermal shock resistance, corrosion resistance and longer service life.

19. 发明专利

JPS6484888A STORAGE TANK 失效
公开(公告)号：JPS6484888A
公开(公告)日：1989-03-30
申请号：JP23628887
申请日：1987-09-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： ICHINOSE TOSHIMITSU , SEIKE YAJURO , FUNATSU HIROYUKI , IMAMOTO TOSHIHIKO , TAKEDA KOZO , SUZUKI TOSHIO
IPC分类号： B01F3/12 , B01F13/00 , B65D90/00 , C10L1/32
摘要： PURPOSE:To eliminate area in a tank, where slurry stays still for a long period of time and maintain the quality of slurry by equipping a tank, whose shape is an approximate rectangular solid, and the substantial water depth of which is smaller than the short side of the bottom surface of the tank, and a scraper, which is movable along the bottom surface of the tank. CONSTITUTION:A receiving slurry 1, which is received in a storage tank, whose shape is approximate rectangular prism, and the substantial water depth of which is smaller than the short side of the bottom surface of said tank, is stored for a long period of time. On the bottom of the storage tank 2, a scraper 4, which is driven in the longitudinal direction of the storage tank 2 by a sprocket 5 and a chain 6, is equipped; and the sediment of the receiving slurry 1 on the bottom of the storage tank 2 is periodically or continuously cleared away. Clearing away is conducted by a pump 7 from discharge ports on the both sides of the storage tank 2. Cleared away slurry is divided into a circulat ing slurry 8, which returns to the storage tank 2, and a cleared away slurry 9. In case where particles give a cohesion caking, slurry in the tank can be securely cleared away by using a machine such as bulldozer, etc., since the tank is shallow and wide.

20. 发明专利

JPS6358013A TREATING METHOD FOR WASTE SLURRY 失效
公开(公告)号：JPS6358013A
公开(公告)日：1988-03-12
申请号：JP20004186
申请日：1986-08-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： KANEKO SHOZO , IMAMOTO TOSHIHIKO , OZUKI MASATO , UEMATSU YOSHISHIGE
IPC分类号： F23D99/00 , F23G7/04
摘要： PURPOSE:To eliminate the necessity of disposing waste slurry and reduce treating cost by a method wherein the waste slurry recovered in a waste slurry tank is burnt by an exclusive burner which is fed with an oil feed pump and set in the neighborhood of burners for coal and water slurry (CWM) in a furnace. CONSTITUTION:An exclusive burner 11 for waste slurry is installed at the upper part of the neighborhood of CWM burners 6 in a furnace 5 and the waste slurry stored in a waste slurry tank 7 is pressurized by an oil feed pump 12 to be transferred to the burner. The waste slurry is atomized into the furnace 5 by the burner 11 and the water content vaporization in this waste slurry atomization is promoted by combustion fire flame (high temp. gas) of CWM (or heavy fuel) caused by the burners 6 in the furnace and then the slurry is ignited and burnt. Further, as for the exclusive burner 11 for waste slurry, the adoption of a straight mechanical type tip with 3-10kg/cm atomizing pressure is best suited.

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