SU1553450A1 - Flight working-face conveyer - Google Patents

Abstract

The invention relates to conveyor transport and improves the reliability of the downhole scraper conveyor. The latter consists of the drive and end heads, turning sprockets and a gate of successively installed pans, in which traction chains 4 and 5 are placed, and scrapers 6, made of several elements 10. Chains 4 and 5 round the drive sprockets and are located below and above scrapers 6. Elements 10 scrapers 6 are interconnected and with chains 4 and 5. Each of the pancaps consists of a working and single 12 troughs. The working trough has sidewalls 13 and 14, the bottom 15 and the lower longitudinal shelf 16. Bent down with inclination downward, the side 17 of the bottom 15, the shelf 16 and the side 14 form a channel 18 for chain 4. In channel 18, there are guide elements made in the form of polyhedra ( MG) 19. Face 20 MG 19 is adjacent to side 17 of bottom 15, and face 21 faces sidewall 14. Rib 22 of facets 20 and 21 is located along the mating line of shelf 16 with side 17 of bottom 15. Chain 4 interacts with face 21. Due to the close to the vertical position of the face 21, the spontaneous rise of the center pi 4 along side 17 of the bottom 15. At the same time, the coal trifle freely enters channel 18 and goes along the surface of side 17 of the bottom and along the facets of MG 19. It is possible to carry out MG 19 as a triangular pyramid or wedge. 4 hp f-ly, 6 ill.

Description

The invention relates to a conveyor transport, namely to scrapper conveyors with endless drag chains closed in a horizontal plane.

The aim of the invention is to improve the reliability of the downhole scraper conveyor.

FIG. 1 schematically depicted

The bottomhole scraper conveyor, plan view, FIG. 2 shows section A-A in FIG. 1, in FIG. 3 reshtak, type of viscometer (connecting locks are not shown) j in FIG. 4 - the same, the embodiment; in fig. 5 - position of the chain with scrapers in the area of the sprocket, view in plan; in fig. 6 — node I in FIG. five.

The bottomhole scraper conveyor consists of a natural head 1, an end head 2, a lattice rod 3 and a traction body in the form of chains 4 and 5 with scrapers 6. The lattice wall 3 is formed by successively installed lattices 7, which are interconnected by locks 8. Chain 4 is closed in a horizontal plane. It bends around horizontally mounted sprockets 9 and is located under the scrapers 6. The chain 5 is also closed in a horizontal plane and bends around the corresponding sprockets 9 "It is located above the scrapers 6, which are made of several elements 10 that are hinged together mi

Each of the pan 7 consists of a working chute 11 and an empty chute 12. The working chute 11 includes sidewalls 13 and 14, bottom 15 and lower longitudinal shelf 16. Bent down with inclination down the side 17 of the bottom 15 together with the bottom longitudinal shelf 16 and the sidewall 14 forms a channel 18 for a chain located under the scrapers 6. The conveyor is provided with guide elements that have the shape of polyhedra 19. One of the faces of the polyhedron 20 is adjacent to the downward side 17 of the bottom 15, and the other face 21 faces the sidewall .14 and interacts with the chain 4 Rib 22 gr 20 and 21, it is placed on the bottom of the longitudinal mating line shelves 16 with the folded side 17 of the bottom 15. The polyhedra 19 placed in the channel 18.

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In one embodiment, each guide element is designed as a triangular pyramid. In this design, the guiding elements are mounted at the ends of the pan, and their tops 23 are oriented opposite.

In another embodiment, the polyhedron 19 is made in the form of a wedge facing the sidewall 14 of the pan with a rectangular face 24 and adjacent to the trapezoid face bent down the side 17 of the bottom.

The polyhedra 19 can be installed in the zone of an asterisk 9. Then each polyhedron 19 has a base 25, the cylindrical surface of which is concentric with an asterisk 9, and a visor 26 hanging over the asterisk 9 o

Downhole scraper conveyor works as follows

Under the influence of a drive (not shown), chains 4 and 5, along with scrapers 6, are set in motion along lattice stand 3. Located below scrapers 6, chain 4 interacts with the face 21 of guides made in the form of polyhedra 19. Since the position of face 21 is close to vertical, then spontaneous lifting of the traction chain 4 along the side 17 of the bottom of the 15 pan 7 which is obliquely bent downwards becomes almost impossible. At the same time, the coal fines falling into the channel 18 formed for the chain 4 by the bent side 17 of the bottom 15, the longitudinal shelf 16 and the side wall 14 have the possibility of free exit along the surface of the bent side 17 of the bottom 15 and the inclined faces of the polyhedron 19.

Since the conveyor provides a stable position of the chain with scrapers and the possibility of blocking the chain with coal fines is prevented, the reliability of operation of the conveyor is improved.

Equivalent conditions of the operation of the conveyor in the forward and reverse direction of movement of the traction chain are provided by installing the ends of the pan 7 polyhedrons 19, made in the form of a triangular pyramid or installed in the middle part of the pan 7 polyhedrons 19, made in the form of wedges.

Due to the fact that the polyhedra 19 installed in the zone of the asterisk 9 have bases 25, the surface 5

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which are centered with an asterisk 9 and made with peaks 26 hanging over the asterisk 9, solid inclusions (rock, etc.) are prevented between the teeth of the asterisk 9, which also contributes to the reliability of the device.

Claims (5)

1. Downhole scraper conveyor, including the drive and end heads, horizontally arranged sprockets and becoming of successively installed pan sets, with a chain of traction organ and scraper bars, each of which is made in the form of several elements pivotally connected to each other and with chains, one of which is located under the scrapers in the channel of the working chute, formed by lower longitudinal shelves, sides and sides of the panes bent downwards, characterized in that, in order to increase reliability of the conveyor, it is provided with guide elements placed in the channel, each of which is made in the form of a polyhedron, one face of which is adjacent to the pan side bent downwards, the other face faces the pan side, and the common edge of these faces is 0 5 0 5 0 mating of the lower longitudinal shelf with the bottom of the grate bent down 2o The conveyor according to claim 1, characterized in that each guide element is designed as a triangular pyramid, the top of which is located on the mating line of the lower longitudinal shelf with the bottom of the pan tilted down. 3. Conveyor on PP. 1 and 2, which is based on the fact that the guide elements placed in the channel of one pan, made in the form of triangular pyramids, are located at the ends of the pan, and their vertices are directed towards meeting each other. t. A conveyor according to Claim 1, characterized in that each guide element is designed in the form of a wedge, facing the side panel of the pan with a rectangular face and adjacent to the trapezoid face that is bent down. 5. Conveyor on PP. 1 and 2, which is designed in that the guiding elements, made in the form of triangular pyramids, are installed at the rotary sprocket and made with the visors placed above the latter and with the bases in the form of cylindrical surfaces that are concentric . t " 7e I 6