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JP2000510535A |
A two step twin-single fluidized bed type reduction apparatus for fine iron ore, and a method therefor, are disclosed. The fluidizing of the fine iron ore is stabilized so as to improve the reduction degree and the gas utilization rate, ...
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JP3074385B1 |
[wrap up] [Task] A fluidized bed is surely formed on the upper side of the packed bed to form a two-stage heat exchange field, and segregation / drift of powder or granular material is improved to achieve high thermal efficiency and mini...
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JP3074622B2 |
To efficiently discharge large agglomerates out of a fluidized-bed apparatus which is used for treating (cooling, drying, heating, sorting, or treating in combination of these treatment) a granular material containing large agglomerates....
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JP3074617B2 |
To permit the generation of superheated steam while restraining the corrosion of heat exchanger by a method wherein the incomplete combustion of waste is effected without employing desalination agent to make char from a part of the waste...
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JP2000202571A |
To obtain an integral furnace system improving the heat treatment and sand core regeneration by regulating a continuous-heating chamber and combining plural individual heating atmosphere integrated so as to make a work shift from a heati...
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JP3058778B2 |
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JP2605187Y2 |
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JP3057576B2 |
PCT No. PCT/AU90/00330 Sec. 371 Date Apr. 8, 1992 Sec. 102(e) Date Apr. 8, 1992 PCT Filed Aug. 3, 1990 PCT Pub. No. WO91/01799 PCT Pub. Date Feb. 21, 1991.The specification discloses a process for heating solid particulate materials. The...
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JP2000161624A |
To treat unburnt gas in exhaust gas completely and restrain the generation of carbon monoxide and PCDDs(polychlorinated-dibenzo-p-dioxins), by a method wherein a surface combustion burner is installed on a ceiling unit in an incinerating...
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JP3051371B2 |
To provide a producing apparatus of reduced iron or iron carbide, in which reaction ratio of fine powder discharged from a fluidized bed furnace can efficiently be improved. A cyclone 9 for separating powdery and granular material from g...
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JP3045408B2 |
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JP2000146725A |
To predict risk for the local or global damage of a heat transfer pipe by quantitatively measuring the three-dimensional distribution characteristic of the in-layer fluctuating load in real time in all operating states including hot oper...
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JP3042850B2 |
A cement clinker-producing plant has a suspension preheater (1,2,3), a calciner (4) united with a stationary reactor (6) and coolers (7,8). Air is blown up through the cooler (7) into the reactor (6) where a spouted bed, in which the cli...
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JP2000130729A |
To provide a combustion control method for a circulation fluidized bed incinerator in which discharge of environment contaminating substances and deposition of clinker onto a cyclone inner wall are prevented with simplified means. A circ...
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JP2000129363A |
To provide a heat treatment method in a fluidized bed type continuous heat treatment furnace, with which the fluidity of heat medium powder can be uniformized in the upper side surface and the lower side surface of a metallic material to...
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JP2000119721A |
To provide a charging method of wet raw material into a fluidized bed type pre-reduction furnace and a charging apparatus therefor, by which high temp. smelting reduction furnace gas is utilized without newly arranging raw material dryin...
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JP3036904B2 |
PURPOSE: To perform a smooth process by setting the injecting direction of gas to be injected from a nozzle obliquely upward with respect to the feeding direction of a material to be processed. CONSTITUTION: The injecting direction of ga...
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JP3037680B1 |
[wrap up] [Task] Maintain a good fluidized bed without affecting the classification performance, and adjust the air volume and / or temperature required for treatments such as drying, heating, and cooling. A chamber provided with a flow ...
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JP3034865B1 |
[wrap up] [Task] In the fluidized bed heat recovery device, the coating on the evaporator tube and the superheater tube is reduced to reduce the corrosion of the heat transfer tube. The flow medium in the internal circulation flow bed is...
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JP3031564B2 |
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JP3023081B2 |
To obtain a fluidized bed system which can be operated and maintained easily in safety by sustaining a stabilized fluid state surely while reducing the scattering amount at the time of processing (e.g. drying, heating, or cooling) a mate...
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JP3022907B2 |
PURPOSE: To execute an efficient baking of a raw material continuously by executing a circulation baking of the raw material between a baking zone and an overflowing zone through forming a furnace chamber of a space as the baking zone an...
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JP3018018B2 |
PURPOSE: To recover metallic powder and to recover the chlorine contained therein as hydrochloric acid by treating the metallic chloride generated as precipitate in the process of treating a waste etching soln. at relatively low running ...
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JP3017532B2 |
PCT No. PCT/SE91/00305 Sec. 371 Date Oct. 20, 1992 Sec. 102(e) Date Oct. 20, 1992 PCT Filed Apr. 29, 1991 PCT Pub. No. WO91/17391 PCT Pub. Date Nov. 14, 1991.A method is provided for cooling of particulate material from a combustion plan...
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JP3014279B2 |
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JP3012665B2 |
Excavated landfill material is treated in a plasma fired cupola (12) in a process wherein hazardous material such as PCB's are volatilized and consumed in an afterburner (20) above the cupola and hazardous materials containing heavy meta...
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JP3014995B2 |
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JP3004629B1 |
[wrap up] [Task] Achieve safe and short-time start / stop control of the start / stop of the partial combustion furnace. In the start control of the fluidized bed partial combustion furnace 10, primary air is supplied to the air diffuser...
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JP2997259B1 |
[wrap up] [Task] To provide a diffuser tube type multi-chamber split fluidized bed furnace for producing reduced iron or iron carbide. The first fluidized bed furnace 1 and the second fluidized bed furnace 2 are divided into multiple cha...
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JPH11514921A |
In a process for recycling fine-particle solids (4) discharged from a reactor vessel (1) at a discharging position of the reactor vessel (1) by means of a gas, at a recycling position (16) of the reactor vessel (1), the solids (4) are se...
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JPH11514705A |
The production of highly metallized feed, an intermediate product produced solely by gaseous reductants in two stage reduction processes of that kind, encounters sticking problems, which interfere with continuous processing and productiv...
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JP2981015B2 |
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JP2975582B2 |
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JP2968603B2 |
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JPH11269520A |
To provide a fluidized bed reduction furnace equipment, in which the occurrence of hanging in a reduced ore discharging device of the fluidized bed reduction furnace is prevented, and also, the reduced ore can efficiently be cooled. The ...
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JP2952407B2 |
To obtain stable alloy fluidized beds free of channeling without using a compressor of a large differential pressure by specifying the ratio of the height and cross-section equiv. diameter of the fluidized beds formed in respective small...
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JP2948772B2 |
Provided is a method for producing iron carbide in which free carbon is generated with difficulty. When iron carbide is produced by reducing and carburizing iron-containing raw materials for iron making using a reaction gas mainly contai...
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JP2947616B2 |
PCT No. PCT/KR96/00249 Sec. 371 Date Aug. 25, 1997 Sec. 102(e) Date Aug. 25, 1997 PCT Filed Dec. 26, 1996 PCT Pub. No. WO97/23655 PCT Pub. Date Jul. 3, 1997The 2-stage fluidized bed furnace for pre-reducing a fine iron ore comprises a fi...
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JPH11229017A |
To provide a new energy-saving producing method of a ferro-alloy. Mixture of powdery oxide ore and carbon base refining agent is produced and the mixture is introduced into a rotary hearth furnace in order by each prescribed quantity and...
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JP2923278B2 |
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JPH11193988A |
To enable highly efficient combustion by rotating an air diffusing plate having a large heat capacity to recover waste heat, and by utilizing it for preheating fluidizing air. Under such conditions in which only an air diffusing plate 12...
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JPH11193989A |
To enable combustion with high efficiency, by rotating an air diffusing plate having a large heat capacity to recover exhaust heat, and by utilizing it for preheating fluidizing air. An air diffusing plate 12 is arranged, so that a cente...
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JP2920880B2 |
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JP2919906B2 |
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JPH11190590A |
To recover waste heat through heat exchange of exhaust gas and fluidizing air by supplying a fluidizing air from the upper part of fluidized bed through a tube-like supply device. A combustion chamber 11 is provided with plural fluidizin...
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JPH11190591A |
To improve the flow velocity distribution of fluidizing fluid, at the same time, to reduce the surface temperature of an air diffuser plate, and to improve the life of the air diffuser plate. A scattering plate 12 is provided at the side...
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JPH11190592A |
To allow a proper amount of fluidized fluid to appropriately flow by controlling the amount of the fluidization fluid according to the pressure of a wind box. Pressure fluctuation in a wind box 13 is obtained by a detection signal for ea...
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JP2918110B1 |
[wrap up] [Task] Prevents wear of the air diffuser in the air diffuser used in the fluidized bed furnace. A fluidized bed for fluidizing the fluidized bed and combustibles is formed on the upper side of the air disperser composed of a pl...
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JPH11183037A |
To ensure heat resistance and corrosion resistance by using a novel structure of air diffuser plate. Fluidizing air is fed from an air entrance 16 of a combustion chamber 11 into a bottom wind box 13 via a passage 15 in an air diffuser p...
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JPH11181510A |
To provide a fluidized bed reduction furnace, in which powdery and granular ore can uniformly and sufficiently be reduced and also, the making an equipment compact and the lowering of cost can be realized. Plural stages of combination of...
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