WO2007063402A2 - Tremie - Google Patents

Tremie Download PDF

Info

Publication number
WO2007063402A2
WO2007063402A2 PCT/IB2006/003428 IB2006003428W WO2007063402A2 WO 2007063402 A2 WO2007063402 A2 WO 2007063402A2 IB 2006003428 W IB2006003428 W IB 2006003428W WO 2007063402 A2 WO2007063402 A2 WO 2007063402A2
Authority
WO
WIPO (PCT)
Prior art keywords
hopper
bin
frame
outlet
rock
Prior art date
Application number
PCT/IB2006/003428
Other languages
English (en)
Other versions
WO2007063402A3 (fr
Inventor
Eduard Hermanus Jacobus Swart
Original Assignee
Eduard Hermanus Jacobus Swart
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 Eduard Hermanus Jacobus Swart filed Critical Eduard Hermanus Jacobus Swart
Publication of WO2007063402A2 publication Critical patent/WO2007063402A2/fr
Publication of WO2007063402A3 publication Critical patent/WO2007063402A3/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
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/44—Devices for emptying otherwise than from the top using reciprocating conveyors, e.g. jigging conveyors
    • 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
    • B65G27/00—Jigging conveyors
    • B65G27/08—Supports or mountings for load-carriers, e.g. framework, bases, spring arrangements

Definitions

  • This invention relates to a hopper, more particularly but not exclusively, to a hopper for use in underground mining operations.
  • crushed rock from the head of an underground mine shaft is placed in a bin for transport away from the mine working.
  • the rock in this bin is then manually unpacked onto a conveyor belt which transports the rock to a location for further processing.
  • a hopper comprising a bin having an outlet and being mounted on a frame to be vibratable.
  • a further feature of the invention provides for the hopper to have a rectangular open top and to be configured to receive ore from a front-end loader in an underground working; preferably for the hopper to be less than 2m in height.
  • the frame is further provided for the frame to be collapsible for transport and storage; and for two three-phase motors (34) connected to eccentric drives beneath the bin (4) to serve as vibrators.
  • Figure 1 is a front elevation of an embodiment of a hopper
  • Figure 2 is a top plan view of the hopper of Figure 1 ;
  • Figure 3 is a side elevation of the hopper of Figure 1 ;
  • Figure 4 is a side elevation of the hopper of Figure 1 in a collapsed position.
  • a hopper (2) has a bin (4) mounted on a frame (6).
  • the bin (4) has a rectangular open top (10), shown more clearly in Figure 2, with a front (12), back (14), sides (16) and floor (18).
  • the sides (16) are inwardly inclined from the top (10) while the floor (18) is inclined downwardly from the back (14) to the front (12).
  • Grizzly bars (20) cover the top (10) and a square outlet (8) is centrally positioned in the front (12) extending upwardly from the floor (18).
  • the frame (6) has four legs (22), each leg movably mounted to skids (24) by means of two hinges (30, 31).
  • a pair of spaced-apart cross beams (25) extend normally between the skids (24) and a pair of horizontal beams (28) are attached to the top of the legs (22) and extend on either side (16) of the bin (4).
  • Diagonal bracings (26) join the legs (22) to the cross beams (25) and springs (32) are mounted on the horizontal beams (28) and support the bin (4) about its sides (16).
  • Two three-phase 2.2kW motors (34) connected to eccentric drives beneath the bin (4) serve as vibrators.
  • the hopper (2) can be collapsed as illustrated in Figure 4.
  • the legs (22) lie substantially parallel to and along the length of the skids (24) and the horizontal beams (28).
  • Five anchor points (not illustrated) are provided on the frame (6) such that once the hopper (2) is maneuvered into its desired location the frame (6) can be lifted using a 5 ton chain and block attached to the anchor points.
  • the weight of the skids (24) pulls the legs (22) from their folded position into a vertical position by slidably rotating the hinge points (30, 31) in opposite directions along the skids (24) and the horizontal beams (28).
  • Adjustable mounts can be attached to each leg of the frame to provide for leveling and final positioning of the bin (4).
  • Each leg (22) of the frame (6) is bolted to the ground using four bolts. Once erected the motors (34) can be mounted beneath the bin (4).
  • a chute (not shown) is attached to the outlet (8) such that the chute is positioned above a conveyer belt.
  • the top (10) of the hopper and the gaps between the grizzly bars (20) are sufficiently large that rock can be placed in the hopper (2) by means of a front end loader.
  • Rock fed into the bin (4) through the opening at the top (10) using a front-end loader slides down the floor of the bin towards the outlet (8) and down the chute onto the conveyor.
  • the vibrating motion of the bin (4) prevents the rock from becoming jammed in the bin (4) or the outlet (8).
  • motors (34) By controlling the weight settings on the motors (34) the feed from the bin (4) can be controlled.
  • motors (34) set at 80% weight should deliver a feed of between 150 and 200 tons per hour.
  • Both motors (34) should be set at the same weight settings to ensure a smooth delivery of rock and to prevent damage to the conveyor belt. Weight settings are adjusted by varying the off-centre adjustment of the eccentric drives in a known manner.
  • One of the motors (34) causes a horizontal cyclical vibration while the other causes a vertical cyclical vibration so that, in combination, a desired diagonal cyclical vibration pattern is achieved.
  • the hopper allows for automatic loading by means of a front-end loader and rock is delivered automatically, continuously and at a constant rate to a conveyor belt avoiding the need for manual unloading of the hopper.
  • the vibration of the hopper further prevents rock from jamming in the outlet or the chute.
  • the delivery rate can also be adjusted such that damage to the conveyor is substantially reduced if not completely eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

L'invention concerne une trémie (2) comprenant un caisson de stockage (4) présentant une décharge (8) et monté sur un châssis (6) pouvant être animé d'un mouvement de vibration. Le caisson (4) présente une partie supérieure rectangulaire ouverte (10) et est d'une hauteur inférieure à 2 mètres pour permettre à la trémie (2) de recevoir du minerai provenant d'un chargeur à benne frontale dans une exploitation souterraine. La partie supérieure (10) est recouverte de barreaux de crible (20), et le fond (18) du caisson (4) est incliné vers le bas, en direction de la décharge (8). Deux moteurs triphasés (34) connectés à des entraînements à excentriques au-dessous du caisson (4) servent de vibreurs, et le châssis (6) est repliable pour le transport et le stockage.
PCT/IB2006/003428 2005-12-01 2006-12-01 Tremie WO2007063402A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2005/09734 2005-12-01
ZA200509734 2005-12-01

Publications (2)

Publication Number Publication Date
WO2007063402A2 true WO2007063402A2 (fr) 2007-06-07
WO2007063402A3 WO2007063402A3 (fr) 2009-04-16

Family

ID=38092621

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/003428 WO2007063402A2 (fr) 2005-12-01 2006-12-01 Tremie

Country Status (2)

Country Link
WO (1) WO2007063402A2 (fr)
ZA (1) ZA200804662B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120102776A1 (en) * 2010-11-03 2012-05-03 Ag Growth International, Inc. Collapsible aeration system for retrofitting a grain bin
EP2716581A1 (fr) * 2012-10-08 2014-04-09 Portasilo Limited Section de plancher vibratoire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550752A (en) * 1968-11-08 1970-12-29 Vaughn Gregor Automatic storage system for non-free flowing products
US4337878A (en) * 1978-06-05 1982-07-06 Astec Industries, Inc. Method of weighing and dispensing material from a surge bin
US5292006A (en) * 1992-01-08 1994-03-08 Girts Jr David M Screening apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550752A (en) * 1968-11-08 1970-12-29 Vaughn Gregor Automatic storage system for non-free flowing products
US4337878A (en) * 1978-06-05 1982-07-06 Astec Industries, Inc. Method of weighing and dispensing material from a surge bin
US5292006A (en) * 1992-01-08 1994-03-08 Girts Jr David M Screening apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120102776A1 (en) * 2010-11-03 2012-05-03 Ag Growth International, Inc. Collapsible aeration system for retrofitting a grain bin
US8793891B2 (en) * 2010-11-03 2014-08-05 Ag Growth International, Inc. Collapsible aeration system for retrofitting a grain bin
US9470454B2 (en) 2010-11-03 2016-10-18 Ag Growth International Inc. Collapsible aeration system for retrofitting a grain bin
EP2716581A1 (fr) * 2012-10-08 2014-04-09 Portasilo Limited Section de plancher vibratoire
WO2014056861A1 (fr) * 2012-10-08 2014-04-17 Portasilo Limited Section de plancher vibrant

Also Published As

Publication number Publication date
WO2007063402A3 (fr) 2009-04-16
ZA200804662B (en) 2009-06-24

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