专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08259955A METHOD OF TREATING WASTE PLASTICS 失效
公开(公告)号：JPH08259955A
公开(公告)日：1996-10-08
申请号：JP6016495
申请日：1995-03-20
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO
IPC分类号： C10B53/07 , C10B53/00 , C10B57/06
摘要： PURPOSE: To treat waste plastics by removing vinyl chloride resin of a specific gravity of above 1 from the waste plastics, mixing only waste plastics of a specific gravity of 1 or below with feed coal for the production of coke and heat-decomposing them in a coke oven. CONSTITUTION: Waste plastics are crushed to a size of 1-10mm, the crushed product is introduced into water to separate it into waste plastics a specific gravity of above 1 and waste plastics of a specific gravity of 1 or below, 0.1-5wt.% waste plastics of a specific gravity of 1 or below are mixed with feed coal for the production of coke, and the mixture is fed into a coke oven and carbonized.

2. 发明专利

JPH08176623A ADJUSTMENT OF PULVERIZED COAL FOR BLAST FURNACE BLOWING 失效
公开(公告)号：JPH08176623A
公开(公告)日：1996-07-09
申请号：JP33463794
申请日：1994-12-20
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO
IPC分类号： C21B5/00
摘要： PURPOSE: To simply adjust the pulverization of a coal within grain diameters conveyable by a pneumatic conveying line for blowing the pulverized coal into a blast furnace by pulverizing the coal into a specific typical grain diameter according to volatile matter. CONSTITUTION: A pulverized coal for the blast furnace blowing having a prescribed grain diameter is produced. At this time, the volatile matter VM (%daf) in terms of non-water and non-ash base in the coal is measured. Successively, the typical grain diameter Dp (μm) of the pulverized coal conveyable by the pneumatic conveying line as the coal for the blast furnace blowing is calculated by the inequality Dp>=5.6×VM-24.8 in the case of VM =-5.0×VM+183.1 in the case of VM>=20%. The capacity of a pulverizer is adjusted based on the range of the typical grain diameter of the pulverized coal to produce the typical grain diameter pulverized coal for blowing into the blast furnace. Thus, the conveying trouble in the pneumatic conveying line of the pulverized coal can easily be avoided.

3. 发明专利

JPH06184565A METHOD FOR UTILIZING CHAR PRODUCED BY RAPID THERMAL CRACKING OF COAL 失效
公开(公告)号：JPH06184565A
公开(公告)日：1994-07-05
申请号：JP33921892
申请日：1992-12-18
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO , SAKAWA MITSUHIRO , SAKURAI YOSHIHISA
IPC分类号： C10G1/00 , C10G1/02 , C10J3/46 , C10J3/72
摘要： PURPOSE:To provide a method as a technique of recovering hydrogen possessed by the char itself formed in the rapid thermal cracking of coal and reasonably utilizing the hydrogen. CONSTITUTION:Char obtained by rapidly thermally cracking coal in an atmospheric gas having a maximum temperature of 600-1000 deg.C is heat-treated at 800 deg.C or higher to obtain a hydrogen-rich gas and a porous carbonaceous material. The obtained hydrogen-rich gas can be used as a starting material for hydrogen to be used for producing a highly pure hydrogen gas by an already established technique, while the obtained porous carbonaceous material can be used effectively as material of activated charcoal without deteriorating the environment.

4. 发明专利

JPH06184543A METHOD FOR IMPROVING COAL 失效
公开(公告)号：JPH06184543A
公开(公告)日：1994-07-05
申请号：JP33921692
申请日：1992-12-18
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO , SAKAWA MITSUHIRO , SAKURAI YOSHIHISA
IPC分类号： C10B57/06
摘要： PURPOSE:To provide the subject method whereby the dusting of feed coal for the production of coke otherwise occuring during feeding the coke to a coke oven after drying can be easily prevented. CONSTITUTION:Feed coal for the production of coke is dried to a water content of 5wt.% or below; and coal-derived bituminous substance in an amount of 0.1-10wt.%, based on the total weight of the feed coal and the coal-derived bituminous substance, is added to the dried coal and kneaded to coat the feed coal with the bituminous substance and to convert the mixture into pseudoparticles, which are fed to a coke oven. Thus, the dried coke having dusting properties can be carried without causing dusting and without the necessity for special equipment such as a pipe transportation, the latent heat of vaporization of water in the coke oven can be reduced, and the strengths of the obtained cake can be improved.

5. 发明专利

JPH09112852A APPARATUS AND METHOD FOR TREATING WASTE 失效
公开(公告)号：JPH09112852A
公开(公告)日：1997-05-02
申请号：JP26883095
申请日：1995-10-17
申请人： NIPPON STEEL CORP
发明人： NAITO MASAAKI , SHIRAISHI KATSUHIKO , SHIBAIKE HIDEJI
IPC分类号： F23G5/00 , B09B3/00 , C10B53/00 , C10B57/04 , F23G5/027 , F23G5/24
摘要： PROBLEM TO BE SOLVED: To reuse the top exhaust gas of a cake bed type refuse melting furnace as fuel and to reduce the coke amount to be charged in the case of melting and treating the waste in the furnace. SOLUTION: A waste charging port is provided directly above the second stage tuyere (second tuyere) or third stage tuyere (third tuyere) from the bottom of a coke bed type refuse melting furnace having multistage tuyere in the height direction of the furnace on the hearth and the wall of the shaft and the port for the coke and waste at the upper part of the shaft. Further, in the case of necessity of drying the waste containing adhering water, the air supply temperature of the third tuyere is set to 350 deg.C or lower.

6. 发明专利

JPH09112851A TREATING METHOD FOR WASTE 失效
公开(公告)号：JPH09112851A
公开(公告)日：1997-05-02
申请号：JP26882895
申请日：1995-10-17
申请人： NIPPON STEEL CORP
发明人： NAITO MASAAKI , SHIRAISHI KATSUHIKO , SHIBAIKE HIDEJI
IPC分类号： F23G5/00 , B09B3/00 , C10B53/00 , C10B57/04 , C10B57/10 , F23G5/027 , F23G5/24
摘要： PROBLEM TO BE SOLVED: To obtain tar and gas containing small chlorine content by reducing the content of the chlorine for causing the problem occurrence source such as corrosion to make it possible to use the tar and gas to be discharged from the furnace top as fuel in the case of melting and treating waste in a coke bed type refuse melting furnace. SOLUTION: To treat waste in a coke bed type refuse melting furnace, the waste is previously preheated at 300 to 350 deg.C for 10min to 1 hour of treating time, and the preheated waste is charged from the top of a coke bed type refuse melting furnace having a multistage tuyere. In this case, the tar generated at the time of preheating is sprayed together with hot air from the upper stage tuyere of the furnace, and melted. The dust, tar and gas discharged from the furnace top are treated by a cyclone or a bag filter, and washed to be separated and recovered.

7. 发明专利

JPH09112846A TREATING METHOD FOR WASTE 失效
公开(公告)号：JPH09112846A
公开(公告)日：1997-05-02
申请号：JP26542495
申请日：1995-10-13
申请人： NIPPON STEEL CORP
发明人： NAITO MASAAKI , SHIRAISHI KATSUHIKO
IPC分类号： F23G5/00 , B09B3/00 , C10B53/00 , F23G5/027 , F23G5/24 , F23J15/02
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing tar and gas containing small chlorine component causing the occurrence of a problem such as corrosion to make it possible to use the tar and gas discharged from the furnace top as fuel in a method for melting and treating waste in a coke bed type refuse melting furnace. SOLUTION: The method for treating waste comprises the steps of preheating the waste at 300 to 350 deg.C for 10min to 1 hour of treating time, then charging the waste together with coke and limestone from the top of a coke bed type refuse melting furnace to melt it, treating the high-temperature gas exhausted from the top of the melting furnace by a cyclone and/or a bag filter to recover the dust, and then washing the high-temperature exhaust gas after the dust recovery, thereby separating and recovering the tar and gas.

8. 发明专利

JPH08259954A PRODUCTION OF COKE FOR BLAST FURNACE 失效
公开(公告)号：JPH08259954A
公开(公告)日：1996-10-08
申请号：JP6016395
申请日：1995-03-20
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO
IPC分类号： C10B53/04 , C10B53/08 , C10B57/04 , C10B57/10
摘要： PURPOSE: To produce feed coal for a coke oven which is dried to a water content of below 5wt.%, yet does not dusts. CONSTITUTION: Feed coal is classified with a wet classifier into coarse coal particles with a diameter of above 0.3mm and fine coal particles with a diameter of 0.3 mm or below, the fine coal particles are granulated into particles with a diameter of 0.6-3mm by the underwater granulation method, the obtained particles are mixed with the coarse coal particles, the mixture is dried to a water content of below 5wt.%, and the dried product is fed into a coke oven and carbonized.

9. 发明专利

JPH06207933A ESTIMATION OF YIELD OF PRODUCT THROUGH CARBONIZATION OF COAL 失效
公开(公告)号：JPH06207933A
公开(公告)日：1994-07-26
申请号：JP257493
申请日：1993-01-11
申请人： NIPPON STEEL CORP
发明人： SHIRAISHI KATSUHIKO
IPC分类号： C10B57/00 , C10L5/00 , G01N33/22
摘要： PURPOSE:To estimate the yield of a product by the carbonization of coal together with the yield of each component of the generated gas with high accuracy based on the content of ash of coal (ASH), analyzing values of elements, ratios of the number of atoms of hydrogen and carbon (H/C) and oxygen and carbon (O/C). CONSTITUTION:The ash content in coke when the weight of dried coal is 100 is generally equal to ASH. Similarly, the relationship of the amount of O, nitrogen (N), sulfur (S) in a product through carbonization is positive to the amount of O, N, S contained in coal. When the content of C in coal is increased, the yield of C, that is, wt.% of C in cake is increased. If (H/C) is increased, the yield is decreased. This relationship is different depending on (O/C). Likewise, the yield of H in coke is represented by a formula of the relationship of the H content, (H/C), (O/C). O, N, S of the product are calculated by a regression analysis with the O, N, S content in coke. A formula of the yield is calculated from the sum of estimation formulae of ASH, C, H, O, N, S as components, and an estimation formula of the yield of the gas is calculated from the sum of the yield formulae of components of the gas.

10. 发明专利

JPH06184548A RAPID THERMAL CRACKING OF COAL 失效
公开(公告)号：JPH06184548A
公开(公告)日：1994-07-05
申请号：JP33921392
申请日：1992-12-18
申请人： NIPPON STEEL CORP
发明人： SAKAWA MITSUHIRO , SHIRAISHI KATSUHIKO , SAKURAI YOSHIHISA
IPC分类号： C10G1/00 , C10G1/02 , C10J3/46 , C10J3/72
摘要： PURPOSE:To increase the yields of BTX of a high value added by irradiating a product of rapid thermal cracking of coal with a plasma after the separation of char and before the collection of tar. CONSTITUTION:Coal ground to a grain size of 500mum or below is sent from a coal hopper 4 through a feeder 3 to a thermal cracking reactor 2 by blowing a definite amount of coal gas from a pipe 35. The coal particles are mixed with an atmospheric gas preheated to 700-1100 deg.C with a preheater 6 and thermally cracked during fall through the reactor 2 in an inert atmosphere under a pressure of 10atm or below at a temperature rise rate of 10 deg.C/min for a residence time of 0.5-10sec. The thermal cracking component is cooled during passage through a pipe 16 by heat exchange to 300-700 deg.C, and the solid component (mainly char) is collected in a char vessel 15, while the residual solid component is collected in a char vessel 18 by means of a cyclone 17. The residual component is irradiated with a plasma during the passage between plasma electrodes 36, and the low-temperature gasified component devoid of the tary component is collected through a meter 21.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式