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1. 发明专利

JPS5933648B2 JPS5933648B2 - 失效
公开(公告)号：JPS5933648B2
公开(公告)日：1984-08-17
申请号：JP6064081
申请日：1981-04-23
申请人： Nippon Kokan Kk
发明人： NAKAYAMA MICHIO , TAJIMA OSAMU , MATSUI MASAHARU , YOSHIKOSHI HIDEYUKI , FUKUYO HIROSHI
IPC分类号： C22B1/243 , C22B1/14

2. 发明专利

JPS5930220B2 JPS5930220B2 - 失效
公开(公告)号：JPS5930220B2
公开(公告)日：1984-07-25
申请号：JP7887277
申请日：1977-06-01
申请人： Nippon Kokan Kk , Kokan Kogyo Kk
发明人： ITOIDA MUTSUMI , KONDO TAKAAKI , TAJIMA OSAMU , WATANABE KYOSHI
IPC分类号： G01N25/50 , G01K13/00 , G01N25/00

3. 发明专利

JPS56167790A GASIFICATION OF CARBONACEOUS MATERIAL 失效
公开(公告)号：JPS56167790A
公开(公告)日：1981-12-23
申请号：JP7155280
申请日：1980-05-30
申请人： NIPPON KOKAN KK
发明人： TAJIMA OSAMU , OKUYAMA YASUO , ENDOU SHIYUUJI , KIKUCHI KENICHI , NISHIO HIROAKI
IPC分类号： C10J3/54
摘要： PURPOSE:To effect efficient gasification by reacting a metal oxide having little endothermic reaction heat when reduced with carbon as a gasification agent, with a carbonaceous material in a fluidized layer and oxidizing the reduced gasification agent for reuse, in the gasification of a carbonaceous material. CONSTITUTION:Carbonaceous material 27 such as coarse coal is supplied together with a gasification agent consisting of a coarese metal oxide 25 (e.g., copper oxide or manganese oxide) having little endothermic reaction heat when reduced with carbon to multi-stage fluidized layer 1, where it is fluidized by the introduction of oxygen 2, steam 3, etc. and gasifed by a reaction as shown by the formula, to obtain gas 18 rich in CO, H2, etc. Metal 6 reduced in the gasification step is sent together with ask contained in the carbonaceous material 27 to separator 12, in which it is separated from the ask, and converted into the metal oxide 25 by oxidation with air 13. The metal oxide 25 is reused by being recycled to the fluidized layer 1.

4. 发明专利

JPS5628286A CONTROL OF END OF COKING PERIOD IN COKE OVEN 失效
公开(公告)号：JPS5628286A
公开(公告)日：1981-03-19
申请号：JP10406079
申请日：1979-08-17
申请人： NIPPON KOKAN KK
发明人： TAJIMA OSAMU , AZE HAJIME , SUZUKI YOSHIO , HIRATA HIDEKAZU
IPC分类号： C10B21/10 , C10B21/20
摘要： PURPOSE:To save a fuel and smooth the operation without affecting the production and temperature distribution among flues, by carrying out the operations of reducing and cutting off the fuel flow rate at a period staggered from the standard one to correct the lag between the ends of coking periods varying for each oven chamber. CONSTITUTION:Coal is carbonized in a horizontal chamber oven by carrying out the operations of reducing and cutting off the fuel flow rate at a period staggered from the standard one to eliminate the lag between the ends of coking periods of the respective chambers in changing the quantity of heat supply according to the quantity of heat required. For example, the coking period is staggered to 11.5 and 11.3hr in a carbonization chamber 400mm. wide and 4.5m high comprising regenerators of volume 20m /chamber under the following normal operating conditions: Fuel gas: a mixed gas of blast furnace gas with coke oven gas. Carbonization time (time from the charging of fuel to the reduction of fuel flow rate): 20hr. High level of fuel flow rate: 1.5 times that of the conventional method. Low level of fuel flow rate: 0.1 that of the conventional method. Preheating time: 1hr. Standard coking period: 18hr.

5. 发明专利

JPS5399094A HEAT ACCUMULATING METHOD IN PRODUCTION OF REDUCED GAS 失效
公开(公告)号：JPS5399094A
公开(公告)日：1978-08-30
申请号：JP1306477
申请日：1977-02-10
申请人： NIPPON KOKAN KK
发明人： TAJIMA OSAMU , MIYAKADO SATORU , SANO KAZUO , NISHIO HIROAKI
IPC分类号： C10G11/20 , B01J7/00 , C01B3/34 , F24H7/04
摘要： PURPOSE:To efficiently accumulate heat and obtain the prescribed temp. patterns inside furnaces by providing a flow control valve in a flue for combustion exhaust gas from a burner set at the upper connecting section of a counter current heat exchanger type gas heating furnace and a parallel flow heat exchanger type reformer.

6. 发明专利

JPS5940185B2 JPS5940185B2 - 失效
公开(公告)号：JPS5940185B2
公开(公告)日：1984-09-28
申请号：JP4016980
申请日：1980-03-31
申请人： Nippon Kokan Kk
发明人： MYATSU TAKASHI , OKUYAMA YASUO , HORIGUCHI MASAHIRO , TAJIMA OSAMU , SHIMADA MOTOJI
IPC分类号： C10B57/04 , C10B57/08 , C10L9/08

7. 发明专利

JPS57177935A MANUFACTURING DEVICE OF UNFIRED LUMP ORE 失效
公开(公告)号：JPS57177935A
公开(公告)日：1982-11-01
申请号：JP6064081
申请日：1981-04-23
申请人： NIPPON KOKAN KK
发明人： NAKAYAMA MICHIO , TAJIMA OSAMU , MATSUI MASAHARU , YOSHIKOSHI HIDEYUKI , FUKUYO HIROSHI
IPC分类号： C22B1/243 , C22B1/14
摘要： PURPOSE:To manufacture lump ore without burning it, by constituting this manufacturing device of a gas blowing device of one side for blowing gas containing saturated steam of a prescribed temperature, and a gas exhaust device of the other side, between which a material moving from one side to the other side is placed, and an aging chamber for executing the aging in the course of movement. CONSTITUTION:A material which has added granulated slag as a binding material to pulverulent iron ore is supplied to a square shaft 4 by a feeder 5 and goes down. Gas containing saturated steam at 70 deg.C and gas containing saturated steam at 100 deg.C are blown in from a feed header 11 to a low temp. part and a feed header 18 to a high temp. part, respectively, so as to meet at right angles to the going-down material, heat the material, and after that, are exhausted to a duct line 23B. The material further goes down, reaches a main aging chamber 4D, regular aging is performed, and a pellet having sufficient strength is obtained. This pellet is dried up by hot air from a drying air header 26, becomes a product pellet 6, and is cut out by a rotary blade type cutting nachine 8.

8. 发明专利

JPS56136883A CHAR REPARAING APPARATUS FOR PREPARING METALLURGICAL COKE 失效
公开(公告)号：JPS56136883A
公开(公告)日：1981-10-26
申请号：JP4037580
申请日：1980-03-31
申请人： NIPPON KOKAN KK
发明人： NISHIO HIROAKI , OKUYAMA YASUO , TAJIMA OSAMU
IPC分类号： C10B57/08
摘要： PURPOSE:The titled apparatus designed to feed a raw material from a hopper to a batch fluidized bed in which the air is replaced by an inert gas, char the raw material according to the predetermined temperature pattern and preform the total process in the batch fluidized bed with a low equipment cost. CONSTITUTION:The interior of a hopper 1 is replaced by an inert gas charged with a pulverized coal 12. An adequate amount of the coal 12 is then fed into a batch fluidized bed 2, and a fluidizing gas is blown from the bottom while changing the flow rate and the inlet gas temperature of the fluidized bed 2 according to the predetermined heating pattern. A conduit 18 of a fluidizing COG13 is passed through a heating furnace 5 and connected to the bottom of the fluidized bed 2, and a by- pass 14 is branched before the heating furnace 5 is installed. The heating furnace 5 is connected to an air supply pipe 16 for combustion and a COG supply pipe 17.

9. 发明专利

JPS56136881A PREPARATION OF RAW MATERIAL CHAR FOR METALLURGICAL COKE BY EXTERNAL HEATING SHAFT FURNACE 失效
公开(公告)号：JPS56136881A
公开(公告)日：1981-10-26
申请号：JP4017480
申请日：1980-03-31
申请人： NIPPON KOKAN KK
发明人： GEMA TERUO , TAJIMA OSAMU , HORIGUCHI MASAHIRO
IPC分类号： C10B57/08
摘要： PURPOSE:To obtain a char suitable for a raw material of metallurgical coke form a highly volatile non or slightly caking coal, by controlling the temperature and time of an external heating gas in the outer heat transmitting wall of an oven chamber according to the predetermined pattern. CONSTITUTION:An external heating shaft furnace is used as a preliminary dry distillation apparatus. If the preliminary dry distillation apparatus is a chamber oven, the temperature of a heating gas in the outer heat transmitting wall of the chamber oven in the preheating dry distillation apparatus and time are controlled according to the predetermined pattern. The temperature is controlled suitably from the initial temperature of about 250 deg.C to the final temperature of 450-600 deg.C. The raw material coal near the heat transmitting wall and that in the center of the chamber oven are heated at the same heating rate to permit the slow dry distillation with ready recovery of by-products (volatile contents).

10. 发明专利

JPS56136879A PRETREATING METHOD AND APPARATUS FOR HIGHLY VOLATILE NON OR SLIGHTLY CAKING COAL 失效
公开(公告)号：JPS56136879A
公开(公告)日：1981-10-26
申请号：JP4016980
申请日：1980-03-31
申请人： NIPPON KOKAN KK
发明人： MIYATSU TAKASHI , OKUYAMA YASUO , HORIGUCHI MASAHIRO , TAJIMA OSAMU , SHIMADA MOTOJI
IPC分类号： C10B57/04 , C10B57/08 , C10L9/08
摘要： PURPOSE:To obtain uniform good char capable of giving coke having a high level of strength and recover a high calorific dry distillation gas, by feeding a highly volatile non or slightly caking coal through a preheating apparatus to an external heating double rotary kiln, and dry distilling the coal at a slow rate therein according to a specific heating pattern. CONSTITUTION:Tar is added to a highly volatile non or slightly caking coal and dried in a fluidized preheating apparatus 3, and preheated at 250-300 deg.C for about 30min. The coal is then charged into an external heating double rotary kiln 5, dry distilled at a heating rate of 5+ or -3 deg.C/min for 40-75min at a slow rate and kept at 450-600 deg.C for 10-30min. The resultant char thus dry distilled at a slow rate is cooled in a fluidized bed cooler 9 by blowing an inert gas therein and taken out by a conveyor 10. The product char has a VM of 15-20%, a high density and strength, and usable directly as a raw material for molded coke.

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