WO1986001819A1 - Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement - Google Patents

Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement Download PDF

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Publication number
WO1986001819A1
WO1986001819A1 PCT/JP1984/000448 JP8400448W WO8601819A1 WO 1986001819 A1 WO1986001819 A1 WO 1986001819A1 JP 8400448 W JP8400448 W JP 8400448W WO 8601819 A1 WO8601819 A1 WO 8601819A1
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WO
WIPO (PCT)
Prior art keywords
atmosphere
rotor
powder
discharge device
cooling furnace
Prior art date
Application number
PCT/JP1984/000448
Other languages
English (en)
Japanese (ja)
Inventor
Yuzo Terai
Masatoshi Kobayashi
Original Assignee
Nippon Steel Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corporation filed Critical Nippon Steel Corporation
Priority to PCT/JP1984/000448 priority Critical patent/WO1986001819A1/fr
Publication of WO1986001819A1 publication Critical patent/WO1986001819A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B33/00—Discharging devices; Coke guides
    • C10B33/12—Discharge valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material

Definitions

  • the present invention relates to a method and an apparatus for discharging powders in a vertical cooling furnace for powders requiring airtightness in an atmosphere in which air is shut off.
  • Japanese Patent Laid-Open No. 57-36884 proposes a method for continuous cutting from a vertical cooling furnace.
  • the method is not
  • the spilling means is still due to the use of a seal popper with a double seal valve, which does not increase the height of the discharge device.
  • FIG. 1 a method is known in which a rotary valve 1 is directly exposed to a powder outlet 5 of a vertical cooling furnace 2, but a rotor 3 is used.
  • Undesired penetration of coke between the shaft and casing 4 causes increased crushing and load, and significant wear on rotor 3 and casing 4 Practical use is difficult because of the drawbacks that the airtight function cannot be guaranteed after a short operation.
  • the present invention solves the above-mentioned problems and, while maintaining airtightness, a method capable of continuously discharging powders and granules, and further reducing the height of the entire equipment, and an inexpensive discharge device. For the purpose of providing.
  • the powder and granules are continuously and quantitatively taken out from the lower part of the cooling chamber of the vertical cooling furnace in an atmosphere in which the air is shut off, and the air is cut off in an atmosphere where the air is cut off.
  • the powder and granules taken out to the one storage unit of the rotary valve, which is provided in an airtight manner so that it is opened to the outside, are stored in a range that does not become full, and the rotor is further opened. It is characterized in that the powder in the storage section is discharged to the atmosphere by rotating the table.
  • a QMK that requires airtightness
  • an airtight chamber communicating with this outlet and having an opening for discharging the granular material is provided below the outlet of the granular material in the cooling chamber.
  • a transfer device that continuously and quantitatively sends the granules from the granule outlet to the opening of the hermetic chamber from the outlet is installed, and at least one storage section is provided around the A rotary valve having a rotatable rotor is provided so that the storage section communicates with the opening of the airtight chamber in an airtight manner with rotation, and the drive device rotates the rotary port.
  • Fig. 1 shows a vertical valve at the bottom of a vertical cooling furnace for granular materials.
  • Fig. 2 is a cross-sectional view of an essential part of an example of a conventional discharge device in which a vibration feeder is installed at the bottom of a vertical cooling furnace for granular material.
  • Main part sectional view showing an embodiment of the present invention provided with a rotary valve,
  • FIG. 3 is a perspective view of a rotor of a rotary valve used in the present invention.
  • FIG. 4 shows a 7 ° port feeder at the bottom of the vertical cooling furnace for powder and granules.
  • FIG. 5 is a sectional view of a main part showing another embodiment of the present invention in which a rotary valve is provided at the discharge part of the feeder.
  • FIG. Fig. 7 is a cross-sectional view of a principal part showing still another embodiment of the present invention in which a feeder is provided and a rotary valve is provided at an outlet of the roll feeder. Disclosure of the best mode for carrying out the invention
  • Fig. 2 shows an airtight chamber 16 provided below the outlet 15 of the vertical cooling furnace 12 and a vibration feeder 17 as a transfer device installed in the airtight chamber. Further, in this example, a rotor valve 11 is provided adjacent to the discharge section of the vibration feeder 17.
  • 13 is a rotatable port
  • 14 is a casing for accommodating the rotor 13
  • 18 is a rotor blade and casing.
  • the inner periphery of 1'4 is slidably contacted with the inner periphery of 1'4, so that the hermeticity of the hermetic chamber 16 is maintained.
  • the airtightness is maintained by direct contact between the casing and the rotor blades.
  • the airtightness may be maintained by interposing a sealing means.
  • the rotor 13 is preferably provided with a side plate 19 to improve airtightness, and is continuously provided by a vibrating feeder 17.
  • the granular material cut out quantitatively is supplied to a supply port 20 to a rotor valve 11 and is surrounded by a rotor blade 18 and a side plate 19 around a rotor 13. It is housed in a plurality of storage portions formed radially at the same time, and is further discharged from the mouth-tally valve 11 with the rotation of the rotor 13 by a driving device (not shown). Delivery Belt Conveyor — transported by 21.
  • the vibratory feeder 17 has a good quantitative cut-out property except for a large particle size (200 baskets or more), so that the rotor 18 and the side plate 19 In order not to supply more than the capacity of each space, that is, the storage unit, it is possible to control the amount of supply so as not to be full, and to add granular materials. is there. In addition, since the vibration feeder 17 is provided upstream of the rotary valve 11, the opening width a of the supply port 20 to the rotary valve 11 is limited. On the other hand, it is possible to make the falling flow width b of the granular material small, and it is possible to prevent the infiltration of the granular material between one rotor blade 18 and the casing 14. .
  • the tip of the rotor blade 18 is exposed to the falling flow of the granular material at the supply port 20, but the vibration feeder 17 causes the rotor blade 18 to wear. Since the falling speed of the granular material supplied to the supply port 20 to the tally valve 11 can be minimized, it can be supplied gently and the rotor blade 18 can be prevented from wearing at the tip. In addition, the wear of this part is local, and even if a high friction material such as high cr steel is used, there is no problem in the overall equipment cost of the port-tally valve 1.1.
  • a super abrasion-resistant material such as nitrogen nitride ceramic may be used for this part, or a replacement structure may be used. High airtightness can be maintained by replacing the airtightly.
  • the vibration feeder 17 is inexpensive, has sufficient durability, and is highly practical.
  • the compactness of the quantitative cutout device is important for the present invention, and the equipment cost can be reduced because not only the discharge device but also the entire cooling furnace can be lowered.
  • the transfer device of the present invention is not limited to the vibration feeder, and as another embodiment of the present invention, the epoxy feeder is provided with a rotary valve.
  • Fig. 4 shows an example of using it as a quantitative extraction device upstream of the system.
  • the characteristic of the feeder 1-17 is that quantitative extraction is excellent even for the extraction of large-grained powder, and quantitative extraction is easy.
  • a small sieve is used to narrow the flow width b of the supplied granular material. It is preferable to provide a cutout 11 1 to prevent the particulates from getting caught in the rotary valve 11.
  • reference numeral 217 denotes a roll feeder installed in the hermetic chamber 216, and the same reference numerals as those in FIGS. 2 and 4 denote the same. The same components as those used in the illustrated embodiment are shown.
  • the characteristics of the Roll Feeder II 17 are that it is simple in structure, durable, and inexpensive. In addition, the same as in the case of the combination of the 7 ° low feeder and the rotary valve, preventing the powder and particulate matter from being caught in the rotary valve 11. For this reason, it is better to provide a small shot 211 at the discharge section of the roll feeder 2 17.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Procédé de décharge d'une substance pulvérulente et granulée d'un fourneau vertical hermétique de refroidissement. Une substance refroidie est fournie dans une atmosphère hermétiquement isolée de l'atmosphère environnante depuis la région inférieure de la chambre de refroidissement d'un fourneau de refroidissement (12) de substances pulvérulentes et granulées, telles que du coke chauffé au rouge, et chargées dans les réceptacles formés dans un rotor (13) d'une vanne rotative (11) de telle sorte que chaque réceptacle ne soit pas entièrement rempli de la substance, et la substance est déchargée dans l'atmosphère environnante par la mise en rotation du rotor (13). L'invention concerne également un appareil pouvant être utilisé selon le procédé ci-dessus.
PCT/JP1984/000448 1984-09-17 1984-09-17 Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement WO1986001819A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1984/000448 WO1986001819A1 (fr) 1984-09-17 1984-09-17 Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1984/000448 WO1986001819A1 (fr) 1984-09-17 1984-09-17 Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement

Publications (1)

Publication Number Publication Date
WO1986001819A1 true WO1986001819A1 (fr) 1986-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1984/000448 WO1986001819A1 (fr) 1984-09-17 1984-09-17 Procede et appareil de decharge d'une substance pulverulente et granulee d'un fourneau vertical hermetique de refroidissement

Country Status (1)

Country Link
WO (1) WO1986001819A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990010683A1 (fr) * 1989-03-16 1990-09-20 Still Otto Gmbh Procede pour decharger du coke refroidi a sec provenant d'une tour d'extinction de coke, et dispositif correspondant
WO1997046844A1 (fr) * 1996-06-05 1997-12-11 Voest-Alpine Industrieanlagenbau Gmbh Dispositif d'application de materiau a fritter sur une couche de fond a fritter deja calaminee
WO1998054526A1 (fr) * 1997-05-30 1998-12-03 Paul Wurth S.A. Dispositif de chargement pour four a sole tournante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237902A (en) * 1975-09-20 1977-03-24 Nippon Kokan Kk <Nkk> Apparatus for discharging coke from quenching chamber of a coke dry qu enching plant
JPS5491456U (fr) * 1977-12-09 1979-06-28
JPS54143705A (en) * 1978-05-01 1979-11-09 Nagata Seisakusho Co Ltd Doughnut type rotary cooler
JPS5865347U (ja) * 1981-10-27 1983-05-02 石川島播磨重工業株式会社 コ−クス乾式冷却設備におけるコ−クス切出装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237902A (en) * 1975-09-20 1977-03-24 Nippon Kokan Kk <Nkk> Apparatus for discharging coke from quenching chamber of a coke dry qu enching plant
JPS5491456U (fr) * 1977-12-09 1979-06-28
JPS54143705A (en) * 1978-05-01 1979-11-09 Nagata Seisakusho Co Ltd Doughnut type rotary cooler
JPS5865347U (ja) * 1981-10-27 1983-05-02 石川島播磨重工業株式会社 コ−クス乾式冷却設備におけるコ−クス切出装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990010683A1 (fr) * 1989-03-16 1990-09-20 Still Otto Gmbh Procede pour decharger du coke refroidi a sec provenant d'une tour d'extinction de coke, et dispositif correspondant
WO1997046844A1 (fr) * 1996-06-05 1997-12-11 Voest-Alpine Industrieanlagenbau Gmbh Dispositif d'application de materiau a fritter sur une couche de fond a fritter deja calaminee
WO1998054526A1 (fr) * 1997-05-30 1998-12-03 Paul Wurth S.A. Dispositif de chargement pour four a sole tournante
US6210155B1 (en) 1997-05-30 2001-04-03 Paul Wurth, S.A. Charging device for a rotary hearth furnace

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