Abstract:
The corridor for transporting abrasive in an impact chamber is laterally limited by longitudinal sections resting on a foundation slab. The corridor has a traction system for moving an axle set along a transport track, the traction system being provided with a substantially horizontal loop including loop return wheels and a loop connector having two bands moving in opposite directions. Each band of the loop connector is placed in an individually assigned guiding slot, arranged on top of the longitudinal section. There is a method for moving an axle set in an impact chamber having a corridor for transporting abrasive, wherein each band of the loop connector is carried in the immediate vicinity of the side edge of the corridor for transporting abrasive, on top of the longitudinal section.
Abstract:
A face conveyor includes a continuous conveyor formed by a conveyor chain with entrainment plates that are connected to chain links and which, when conveying, circulates in an outward run and a return run, each of which are guided in trough portions by trough elements, which are arranged in a row. Guides provided on each trough element include a first guide on a working face side and a second guide at a spacing from a goaf side. The first guide on the working face side is secured on the trough element between the outward run and the return run. The outward run and the return run extend in a laterally offset manner with respect to each other, and the trough portion guiding the entrainment plates in the outward run is open on the working face side.
Abstract:
An assembly for replacing the top sigma sections in a tail drive of an armored face conveyor is described. The assembly joins the sigmas to the top deck in a single unit, providing more robust mounting support. The assembly may also include one or more mounting pins, as well as one or more access doors. The assembly requires no welding to the tail drive.
Abstract:
The present disclosure concerns a system for transporting drill cuttings from an offshore drilling platform. In a representative embodiment, a bulk material storage and conveying system for a waterborne vessel comprises a first conveyor system including one or more upper conveyors extending lengthwise of the vessel. The system also comprises a plurality of containers located below the first conveyor system arranged in one or more rows, and a second conveyor system including one or more lower conveyors located below the one or more containers. The first conveyor system is configured to selectively dispense bulk material into the one or more containers, and the plurality of containers are configured to selectively dispense bulk material onto different locations along the length of the one or more lower conveyors. The system can further include an offloading conveyor assembly configured to convey drill cuttings from the lower conveyors to trucks on land.
Abstract:
A connecting device for connecting an attachment to a side member of a trough pan of an extracting device is provided. The connecting device includes first fittings on a side member and counter fittings on the attachment, which are detachably connectable to the first fittings. At least one retaining piece prevents detachment of fitting and counter fitting. The first fitting tapers upward in a trapeze-shaped manner and the counter fitting tapers upward in a trapeze-shaped manner, so that by a vertical movement, the first fitting and the counter fitting are able to be fitted into each other or to be detached from each other, and the first fitting and counter fitting are provided with locking strips and/or grooves which interlock in a locking state.
Abstract:
A separator system for separating the solids debris from a slurry flowing over a spillway from a storage pit includes a horizontal conveyor horizontally disposed across a flowpath of the slurry below the spillway and including a channel defined by a pair of opposed side members extending upward from a bottom plate having a pattern of perforations formed therein. A plurality of spaced apart paddles oriented in a direction parallel to the channel are fixed to continuous conveyor drive running along the bottom of the trough. A conveyor has a pickup end disposed below the downstream end of the trough and is positioned to catch solid debris that has been carried along by the paddles and convey the solid debris out of the slurry stream.
Abstract:
A conveyor pan 10 for face conveyors in underground coal mining systems has outward race 1 and return race 2, between which a conveyor bottom 9 is formed, with toggle sockets 21, with guide means for a mining machine which can be moved along the wall, in particular a drum cutter-loader, and with a static loading ramp connected on the wall side to the conveyor pan, and extending from the floor to the level of the outward race, by means of which muck can be loaded into the outward race as the face conveyor is advanced. The loading ramp includes an angled guide plate 50, the lower section 51 of which is steeper relative to the conveyor bottom 9 or the floor 11 than the upper section 52.
Abstract:
The invention relates to a conveyor pan (150) for underground face and gate conveyors, with a bottom run (102) and a top run (103) for the guidance of a scraper of a scraper chain, with a frame work construction (101) which has side walls (110) comprising cast parts firmly joined to each other, with an intermediate flange (111) and an upper moulded flange lug (112) extending outwards from it and a lower moulded flange arm (113) as well as a moulded foot flange (120) extending inwards and bordering the bottom run partly to the side. In accordance with the present invention the cast part (110) has at least one step (115) on the inner wall (114) of the intermediate flange (111) for supporting and welding on a plate (105B) forming an intermediate plate, below which the intermediate arm (111) and the flange lug (120) form a profile strengthening (149), and above which the intermediate arm (131) borders to the side an accepting space for the acceptance of an exchangeable tray (104) having rolled side profiles (180) welded to a conveyor base (184).
Abstract:
A conveyor pan 10 for face conveyors in underground coal mining systems has outward race 1 and return race 2, between which a conveyor bottom 9 is formed, with toggle sockets 21, with guide means for a mining machine which can be moved along the wall, in particular a drum cutter-loader, and with a static loading ramp connected on the wall side to the conveyor pan, and extending from the floor to the level of the outward race, by means of which muck can be loaded into the outward race as the face conveyor is advanced. The loading ramp includes an angled guide plate 50, the lower section 51 of which is steeper relative to the conveyor bottom 9 or the floor 11 than the upper section 52.
Abstract:
A drive and tensioning station (10) of a chain scraper conveyor for mining operations with a machine frame base (20) having side cheeks (21) and a conveyor base (22), connected to a line of pans of the chain scraper conveyor, with a tensioning frame head (50) which can be moved in the direction of the line of pans, in whose side cheek plates (51) can be mounted the chain drum (3) for the scraper chain, and with a tensioning drive having at least one tensioning cylinder (6) to move the tensioning frame head (50) relative to the machine frame base (20). The tensioning frame head (50) has a box-like drawer (60) extending out over the side cheek plates (51) toward the pan connecting side, which is guided in a type of drawer guide (26) on the machine frame base (20) and that on the tensioning frame head (50) a top run pan (70) forming a drag plate in the top run (4) and/or a bottom run box (40) forming a drag base in the bottom run are removably fastened.