CA2025888A1 - Level probe for a shaft furnace - Google Patents

Level probe for a shaft furnace

Info

Publication number
CA2025888A1
CA2025888A1 CA002025888A CA2025888A CA2025888A1 CA 2025888 A1 CA2025888 A1 CA 2025888A1 CA 002025888 A CA002025888 A CA 002025888A CA 2025888 A CA2025888 A CA 2025888A CA 2025888 A1 CA2025888 A1 CA 2025888A1
Authority
CA
Canada
Prior art keywords
motor
winding drum
speed
furnace
torque
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002025888A
Other languages
French (fr)
Other versions
CA2025888C (en
Inventor
Emile Breden
Emile Lonardi
Edgar Kraemer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
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 Paul Wurth SA filed Critical Paul Wurth SA
Publication of CA2025888A1 publication Critical patent/CA2025888A1/en
Application granted granted Critical
Publication of CA2025888C publication Critical patent/CA2025888C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • 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 peculiar to furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • 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 peculiar to furnaces of these types
    • F27B1/28—Arrangements of monitoring devices, of indicators, of alarm devices
    • 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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0035—Devices for monitoring the weight of quantities added to the charge
    • F27D2021/0042—Monitoring the level of the solid charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Coke Industry (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Blast Furnaces (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The probe comprises a probe foot (16) which is suspended on a suspension means such as a cable or a chain (18) attached to a winding drum (20) mounted in a sealed casing (22) above the furnace (10) and which communicates with the interior of the latter via a vertical sleeve (24) passing through the upper wall of the furnace, an electric motor (30) associated with a reducer (32) for actuating the winding drum (20), and detection means (34,36) for detecting the unwinding and winding up of the winding drum (20) in order to control the speed and torque of the motor. The motor is a servomotor (30), the speed and torque of which are controlled automatically as a function of the detection means (34, 36) by comparison of the actual speed of the motor (30) with data of desired values dependent on the position of the probe foot (16).
CA002025888A 1989-11-03 1990-09-20 Level probe for a shaft furnace Expired - Fee Related CA2025888C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU87617A LU87617A1 (en) 1989-11-03 1989-11-03 LEVEL PROBE FOR TANK OVEN
LU87617 1989-11-03

Publications (2)

Publication Number Publication Date
CA2025888A1 true CA2025888A1 (en) 1991-05-04
CA2025888C CA2025888C (en) 2001-08-21

Family

ID=19731196

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002025888A Expired - Fee Related CA2025888C (en) 1989-11-03 1990-09-20 Level probe for a shaft furnace

Country Status (6)

Country Link
BR (1) BR9005586A (en)
CA (1) CA2025888C (en)
DE (1) DE4029406C2 (en)
GB (1) GB2237662B (en)
IT (1) IT1243866B (en)
LU (1) LU87617A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2443417A1 (en) 2009-06-17 2012-04-25 Voestalpine Stahl GmbH Method and device for calculating a surface of a filling material of a container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136845A1 (en) * 1991-11-08 1993-05-13 Heel Gmbh & Co Messtechnik Kg Level meter esp. for wells, pipes or boreholes - has measuring probe on end of cable wound around limited width of drum in well mouth
WO2016189557A1 (en) * 2015-05-27 2016-12-01 Qualical International Srl Level measuring device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109184A (en) * 1979-02-13 1980-08-22 Victor Co Of Japan Ltd Rotational speed control system
DE3149220A1 (en) * 1981-12-11 1983-06-30 VEGA Grieshaber -GmbH & Co, 7622 Schiltach Electromechanical level measuring instrument
US4434874A (en) * 1982-03-10 1984-03-06 Westinghouse Electric Corp. Elevator system
JPS5917472A (en) * 1982-07-21 1984-01-28 三菱電機株式会社 Generator for speed pattern of elevator
LU84992A1 (en) * 1983-09-07 1985-06-04 Wurth Paul Sa DEVICE FOR DETERMINING THE PROFILE OF THE LOADING SURFACE OF A TANK OVEN
DE3332912C1 (en) * 1983-09-13 1984-10-31 Krohne Meßtechnik GmbH & Co KG, 4100 Duisburg Circuit arrangement for a level measuring device with a touch plate
JPS615462A (en) * 1984-05-31 1986-01-11 Fujitsu Ltd Stop lock system
JPS61117598U (en) * 1984-12-29 1986-07-24
GB8703559D0 (en) * 1987-02-16 1987-03-25 Westinghouse Brake & Signal Operating door/brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2443417A1 (en) 2009-06-17 2012-04-25 Voestalpine Stahl GmbH Method and device for calculating a surface of a filling material of a container

Also Published As

Publication number Publication date
IT9021887A1 (en) 1992-04-26
GB2237662A (en) 1991-05-08
IT9021887A0 (en) 1990-10-26
LU87617A1 (en) 1991-07-22
DE4029406C2 (en) 2001-12-20
IT1243866B (en) 1994-06-28
BR9005586A (en) 1991-09-17
CA2025888C (en) 2001-08-21
GB2237662B (en) 1993-12-08
DE4029406A1 (en) 1991-05-08
GB9020118D0 (en) 1990-10-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed