WO2015135849A1 - Goulotte ou paroi déflectrice équipée d'un dispositif chauffant pour l'extraction à ciel ouvert - Google Patents

Goulotte ou paroi déflectrice équipée d'un dispositif chauffant pour l'extraction à ciel ouvert Download PDF

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Publication number
WO2015135849A1
WO2015135849A1 PCT/EP2015/054729 EP2015054729W WO2015135849A1 WO 2015135849 A1 WO2015135849 A1 WO 2015135849A1 EP 2015054729 W EP2015054729 W EP 2015054729W WO 2015135849 A1 WO2015135849 A1 WO 2015135849A1
Authority
WO
WIPO (PCT)
Prior art keywords
chute
elements
flexible heating
wear protection
wall
Prior art date
Application number
PCT/EP2015/054729
Other languages
German (de)
English (en)
Inventor
Steffen Nowak
Thomas Stenzel
Original Assignee
Takraf Gmbh
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 Takraf Gmbh filed Critical Takraf Gmbh
Priority to CA2942712A priority Critical patent/CA2942712A1/fr
Priority to EA201600620A priority patent/EA201600620A1/ru
Publication of WO2015135849A1 publication Critical patent/WO2015135849A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/20—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids
    • B65G11/206—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids for bulk
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/181—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels including a conveyor

Definitions

  • Chute or baffle wall for use in surface mining comprising a heating device
  • the invention relates to a chute or baffle wall for use in surface mining with a heater.
  • Chutes are used in open-cast mining to convey the material to be conveyed from a good job site to a further conveyor.
  • Such chutes are z. B. used together with paddle wheels, wherein the chutes are designed and arranged so that they lead the falling off the bucket wheel conveyed out of the bucket wheel on a conveyor belt.
  • the lower edge of the rigidly arranged chute is located above the conveyor belt.
  • a solution is known in which rigid heating elements are mounted on the outside of the chute facing away from the conveyed material, in order to prevent freezing of the conveyed material or, in the case of sticky, e.g. Clay-containing material to dry this on the wear protection elements and to achieve a chipping of the wear protection plates by the resulting in the conveyed residual stresses and the impact loads through the bainguteintrag.
  • the disadvantage of these solutions is that first the massive body of the chute must be heated and the heat is then introduced into the wear protection elements, which are in contact with the conveyed.
  • the invention is based on the object, a chute nzw.
  • a baffle for use in opencast mining, which prevents the caking and freezing of conveyed material under various conditions.
  • the chute or impact wall according to the invention for use in an open pit mine has a heating device which has flexible heating elements on the side of the wear protection elements facing away from the conveyed material.
  • the heating energy is applied directly to the wear protection elements.
  • the heating elements are mounted between the wear protection elements and the outer wall of the conveyor.
  • a thermal insulation layer is provided between the heating elements and the outer wall of the conveyor.
  • the flexible heating elements consist of two plastic plates or synthetic rubber plates in the flexible heating wires or heating foils are introduced.
  • these flexible heating wires or heating foils are introduced waterproof.
  • the plastic plates are a fiber-plastic composite, such as glass fiber reinforced silicone plates.
  • a synthetic rubber plates neoprene plates are preferably used.
  • the flexible heating elements are insensitive to vibrations and shock loads that are triggered by the falling conveyed material in the area of material transfer.
  • the flexible heating elements depending on the conditions of use, heated to a temperature between 80 ° C to 200 ° C. Most advantageously, the flexible heating elements are heated to a temperature of 180 ° C, which increases the surface temperature of the wear protection elements up to 140 ° C.
  • the flexible heating elements can be used up to an ambient temperature of -50 ° C.
  • the size and shape of the flexible heating elements can be adapted to the contour of the surface to be heated.
  • holes, recesses or slots in large geometrical variability can be introduced.
  • surfaces with irregular surface contours can also be covered or heated with these flexible heating elements.
  • thermostats can be vulcanized as a temperature controller or as a temperature limiter on the heating element.
  • the flexible heating elements are arranged on the side facing away from the conveyed material of the wear protection elements between one or more wear protection elements and the outer wall of the conveyor.
  • the wear protection elements are based with their edge surfaces on spacer plates and centrally on one or more support plates.
  • the central support plates may be positively or materially connected to the outer wall of the conveyor to fix their position during assembly of the flexible heating elements. Particularly advantageous to prevent the spacer plates ingress of conveyed material in the installation space of the flexible heating elements.
  • the wear protection elements are made of wear resistant materials, e.g. armored wear sheets, wear resistant composite panels or wear plates of suitable steel (e.g., S355) which is preferably cured and / or tempered to improve wear characteristics.
  • wear resistant materials e.g. armored wear sheets, wear resistant composite panels or wear plates of suitable steel (e.g., S355) which is preferably cured and / or tempered to improve wear characteristics.
  • Spacer plates and support plates are preferably at least as thick as the heating elements.
  • the flexible heating elements which have a thermal insulation layer, are installed so that the thermal insulation layer faces the outer wall of the conveyor.
  • the heat transfer advantageously takes place predominantly in the direction of the wear protection elements to be heated.
  • the thermal insulation layer is made of non or low thermal conductivity materials.
  • the wear protection elements are connected together with the spacer plates with the outer wall of the conveyor form fit or cohesively.
  • the wear of the heating elements and the required number of connecting elements is reduced.
  • the positive or cohesive connection by means of a method selected from screwing, riveting, welding or gluing.
  • At least one temperature measuring element is contained in the heating device according to the invention.
  • the temperature measuring element is preferably arranged between the outer wall of the conveyor and the wear protection elements and placed so that the temperature of the wear protection elements is measured. Further preferably, the temperature measuring element is connected in a feedback loop with one or more thermostats.
  • the temperature measuring element is a platinum measuring resistor.
  • connection cables for heating elements and the connections of the temperature measuring elements are led out through bores to the rear out of the wall element.
  • the supply lines can be summarized in distribution boxes there.
  • FIG. 1 shows a perspective view of a chute for a bucket wheel excavator with the heating device according to the invention on the side facing the impeller,
  • Figure 2 is a view of the paddle wheel opposite side wall of a
  • FIG. 3 shows a sectional view of a heating element with a wear protection element arranged above it.
  • Figure 1 and Figure 2 show an arrangement of flexible heating elements (2) on the side walls (7) of a chute (1) for a bucket wheel excavator.
  • the flexible heating elements (2) are adapted in shape to the contour of the side walls (7) and can thereby be mounted close to the lower edge of the side walls (7).
  • Figure 3 shows a sectional view of the inventive arrangement of a flexible heating element (2) between an outer wall (7) of the chute and a wear protection element (4).
  • a wear protection element (4) of 12 mm thickness which is screwed together with spacer plates (5) by means of countersunk screws M16 (8) on an outer wall (7) of the chute.
  • the wear protection element (4) is centered on a support plate (6) of 50 mm in diameter, which is connected to the outer wall (7) by means of a plug weld.
  • the flexible heating elements (2) have a central recess, with which they are advantageously fixed during assembly on the inclined walls on the support plates (6).
  • the depth of the pocket can be adjusted, which is formed by the arranged around the spacer plates and in which the flexible heating element (2) is arranged protected from contact with conveyed.
  • the spacer plates are 5 mm thick.
  • the flexible heating elements (2) bear with their thermal insulation layer (3) on the outer wall (7) of the chute.
  • a platinum measuring resistor (9) is inserted, which detects the heating temperature.
  • the connection cables of the flexible heating element and the temperature sensor are led out through holes in the wall elements.

Abstract

Le dispositif chauffant selon l'invention comprend des éléments chauffants souples (2), de taille et de forme adaptables au contour de la surface à chauffer, qui sont disposés sur le côté de la goulotte (1) ou de la paroi déflectrice tourné vers le produit transporté. Les éléments chauffants souples sont disposés entre des éléments de paroi (7) et des éléments de protection contre l'usure. Ces éléments de protection contre l'usure reposent par leurs surfaces de bord sur des plaques d'écartement et au centre sur une plaque de soutien, protégeant ainsi les éléments chauffants souples (2) du contact avec le produit transporté. L'utilisation du dispositif chauffant permet d'empêcher le produit transporté de geler et de coller aux goulottes et aux parois déflectrices.
PCT/EP2015/054729 2014-03-14 2015-03-06 Goulotte ou paroi déflectrice équipée d'un dispositif chauffant pour l'extraction à ciel ouvert WO2015135849A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2942712A CA2942712A1 (fr) 2014-03-14 2015-03-06 Goulotte ou paroi deflectrice equipee d'un dispositif chauffant pour l'extraction a ciel ouvert
EA201600620A EA201600620A1 (ru) 2014-03-14 2015-03-06 Скат или отбойная стенка для использования на открытой разработке, содержащий нагревательное устройство

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014204773.0 2014-03-14
DE102014204773.0A DE102014204773A1 (de) 2014-03-14 2014-03-14 Heizvorrichtung für Schurren und Prallwände

Publications (1)

Publication Number Publication Date
WO2015135849A1 true WO2015135849A1 (fr) 2015-09-17

Family

ID=52629581

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/054729 WO2015135849A1 (fr) 2014-03-14 2015-03-06 Goulotte ou paroi déflectrice équipée d'un dispositif chauffant pour l'extraction à ciel ouvert

Country Status (4)

Country Link
CA (1) CA2942712A1 (fr)
DE (1) DE102014204773A1 (fr)
EA (1) EA201600620A1 (fr)
WO (1) WO2015135849A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109827320B (zh) * 2019-01-07 2021-04-13 中国华冶科工集团有限公司 一种矿山溜槽加热装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508593A1 (de) * 1974-02-27 1975-08-28 Nihon Tsusho Kk Schutzplatte
JP2006051887A (ja) * 2004-08-12 2006-02-23 Iwaki Kensetsu Unyu Kk 貨物保温自動車
JP2007145171A (ja) * 2005-11-28 2007-06-14 Nissan Diesel Motor Co Ltd ダンプトラック

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945938A (en) * 1958-06-10 1960-07-19 Syntron Co Heated liner for trough feeders
US4078729A (en) * 1976-10-21 1978-03-14 Gary Lynn Foltz Manure spreader vehicle with heated floor
US5285047A (en) * 1992-08-06 1994-02-08 Petrelli Michael S Method and apparatus for preventing carry back in a rail car using an on-board heating device
AU2071701A (en) * 1999-12-10 2001-06-18 Thermion Systems International A thermoplastic laminate fabric heater and methods for making same
US20060278631A1 (en) * 2005-06-10 2006-12-14 Challenge Carbon Technology Co., Ltd. Of Taiwan Laminate fabric heater and method of making
US20100051604A1 (en) * 2008-05-28 2010-03-04 Vladimir Nikolayevich Davidov Safe planar electrical heater
DE202009000136U1 (de) * 2008-07-29 2009-05-20 Beier, Gerhard M., Dipl.-Ing. Infrarot-CNT-Heizeinrichtung
DE202010009208U1 (de) * 2010-06-17 2010-09-16 Futurecarbon Gmbh Flexibles Heizelement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508593A1 (de) * 1974-02-27 1975-08-28 Nihon Tsusho Kk Schutzplatte
JP2006051887A (ja) * 2004-08-12 2006-02-23 Iwaki Kensetsu Unyu Kk 貨物保温自動車
JP2007145171A (ja) * 2005-11-28 2007-06-14 Nissan Diesel Motor Co Ltd ダンプトラック

Also Published As

Publication number Publication date
DE102014204773A1 (de) 2015-09-17
EA201600620A1 (ru) 2016-12-30
CA2942712A1 (fr) 2015-09-17

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