Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B1/00—Shaft or like vertical or substantially vertical furnaces
  • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
  • F27B1/20—Arrangements of devices for charging
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21B—MANUFACTURE OF IRON OR STEEL
  • C21B7/00—Blast furnaces
  • C21B7/14—Discharging devices, e.g. for slag
• • C—CHEMISTRY; METALLURGY
  • C21—METALLURGY OF IRON
  • C21B—MANUFACTURE OF IRON OR STEEL
  • C21B7/00—Blast furnaces
  • C21B7/18—Bell-and-hopper arrangements
  • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B1/00—Shaft or like vertical or substantially vertical furnaces
  • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B1/00—Shaft or like vertical or substantially vertical furnaces
  • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
  • F27B1/24—Cooling arrangements
• • 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
  • F27D3/0025—Charging or loading melting furnaces with material in the solid state

Definitions

• the fixed part comprises two annular grooves, one above the other, which face ports in the external cylindrical surface of the rotary part to define connection passages for coolant.
• Watertight seal packings or gaskets have to be mounted to both sides of each groove in between the fixed and rotary parts.
• a revolving fluid joint of this kind has not proven successful. Indeed, the watertight seals as suggested in US 4.273.492 deteriorate rapidly, among others because they are in contact with a very hot moving part. Moreover, due to the relatively large diameter of the revolving joint and consequently of the watertight seals, considerable friction is inevitable. This limits the service-life of the seals and, besides, also increases required driving power for driving the rotor. Accordingly, a rotating joint of the type described in US 4.273.492 has not proven practically viable for feeding a cooling circuit portion on the suspension rotor.
• German patent application DE 33 42 572 proposes to fit the rotary circuit portions on the rotor with an auxiliary pump.
• This auxiliary pump on the suspension rotor is driven by a mechanism which takes advantage of the rotation of the rotor to drive the pump. It follows that the pump only works when the rotor is rotating. Moreover, such a pump is rather sensitive to sludge passing through the cooling coils on the rotor.
• the proposed fluidal/hydraulic swivel joint presents the following main features:
• connections including a pair of a forward and a return connection to the stationary circuit portion, and a pair of a forward and a return connection to the rotary circuit portion;
• FIG.7 is a perspective vertical section of the annular swivel joint of FIGS.6A-C;
• FIG.8 is vertical cross-sectional view of an annular swivel joint according to FIGS.1 -4 illustrating a first embodiment of a venting device;
• FIG.12 is a vertical cross-sectional view of an annular swivel joint according to a fourth embodiment, which corresponds to a rotational position with coinciding lines B-B and D-D in FIGS.5A-B.
• both sidewalls 136 of the hood 126 is recurved around the upper end of the sidewalls 134 of the trough 114 in order to provide a chicane or labyrinth-like seal that reduces exposure of the gaps 138 to the dust-laden atmosphere from inside the housing 18.
• the sidewalls 134 of the trough 1 14 are provided with swellings 137.
• the hood 126 is further provided at the upper recurved end of each sidewall 136 with circumferentially distributed injection pipes 139 connected to an appropriate gas supply.
• the injection pipes 139 are operated to inject inert gas, e.g.
• operation of the fluidal swivel joint 200 of FIGS.5-7 is substantially identical, whereas operation of the fluidal swivel joint 100 of FIGS.1 -4 differs mainly in the inverted forward and return connections 102, 104; 106, 108 and therewith the opposite coolant circulation sense and, moreover in the manner by which the circuits 30, 32 are vented.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Metallurgy (AREA)
• Materials Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Organic Chemistry (AREA)
• Joints Allowing Movement (AREA)
• Vertical, Hearth, Or Arc Furnaces (AREA)
• Blast Furnaces (AREA)
• Muffle Furnaces And Rotary Kilns (AREA)
• Furnace Details (AREA)
• Sealing Devices (AREA)

Priority Applications (15)

Applications Claiming Priority (2)

Related Child Applications (2)

Publications (1)

Family

ID=42077829

Family Applications (1)

Country Status (17)

Cited By (3)

Families Citing this family (6)

Citations (11)

• 2009
  • 2009-08-26 LU LU91601A patent/LU91601B1/en active
• 2010
  • 2010-08-26 AU AU2010288454A patent/AU2010288454B2/en active Active
  • 2010-08-26 WO PCT/EP2010/062494 patent/WO2011023772A1/en not_active Ceased
  • 2010-08-26 MX MX2012002358A patent/MX2012002358A/es active IP Right Grant
  • 2010-08-26 TW TW099128767A patent/TWI519752B/zh active
  • 2010-08-26 CN CN201080038163.9A patent/CN102483304B/zh active Active
  • 2010-08-26 EP EP10745279.9A patent/EP2470846B1/en active Active
  • 2010-08-26 IN IN1410DEN2012 patent/IN2012DN01410A/en unknown
  • 2010-08-26 US US13/389,483 patent/US9146057B2/en active Active
  • 2010-08-26 KR KR1020127007804A patent/KR101626833B1/ko active Active
  • 2010-08-26 CA CA2770250A patent/CA2770250C/en active Active
  • 2010-08-26 UA UAA201203440A patent/UA103114C2/ru unknown
  • 2010-08-26 BR BR112012004207-6A patent/BR112012004207B1/pt active IP Right Grant
  • 2010-08-26 EA EA201200320A patent/EA022180B1/ru not_active IP Right Cessation
  • 2010-08-26 JP JP2012526066A patent/JP5863653B2/ja active Active
  • 2010-08-26 PL PL10745279T patent/PL2470846T3/pl unknown
• 2012
  • 2012-02-14 ZA ZA2012/01088A patent/ZA201201088B/en unknown
• 2015
  • 2015-07-30 US US14/814,212 patent/US9897379B2/en active Active

Patent Citations (14)

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