SU1351670A1 - Flow line for production of crushed stone - Google Patents

Abstract

The invention relates to production lines for the production of shabn mainly from mica waste. The purpose of the invention is to improve the quality of the finished product and reduce its cost. The ZOOnp does not contain a hopper 1, a rotary feeder-screen 10, a jaw crusher 12 in the form of two crushing chambers 23 and 24, formed by fixed shears 13 and 15 and a movable cable 18, in series with conveyors 36 and 37. Mobile nie 18 is installed by a feeder-screen node 10 at the boundary between the supra- and sublattice products of the latter. At the outlet of the crusher 12, devices 40 and 41 of the selective crusher are installed, connected to the final suction system. The material is separated at the feeder-rumble 0, the large product enters the chamber 23, then into the chamber 24, where the small product simultaneously arrives from the feeder-rumble 10 and then undergoes selective elimination of the mica splices in devices 40 and 41. 1 c.p. .f-ly, 2 Il. 39 7..jW. f 3 45,44446 4ff / (O (L with SP C5 O 20th fO-5 5-0,14 Phage. / Aspiration

Description

The invention relates to production lines for the production of rubble mainly from mica waste and can be used in the production of building materials, ore, beneficiation and other industries.

The purpose of the invention is to increase the quality of the finished product, reducing its cost.

FIG. 1 schematically shows the proposed flow line, general view; pas figs. 2 — node I in FIG. one.

The production line of crushed stone from mica waste consists of a receiving bunker 1 with an inclined plane 2, loading plug 3, vibration} U1-o element 4 with teeth 5 and an eccentric drive 6 acting on the lever 7 mounted on the axis 8, and shock-absorbing device 9, rotary feeder - screen 10, tray 11, two-chamber jaw crusher 12 containing fixed cheek 13 with footer plate 14 and fixed cheek 15 with lining plates 16 and 17 of different thickness, shape and size of corrugations of workers surfaces, movable dvustor the lower cheek 18 with lining plates 19 and 20 with different sizes of corrugations of the working surfaces, illuminated on the axis 21, oscillated by an eccentric drive 22. The movable cheek 18 is located between the fixed cheeks 13 and 15 and is installed under the rotary feeder-roar 10 on the boundary of the separation a large above-graded product passing through the feeder-rumble 10, and a small sub-product passing through the feeder-rumble 10. The stationary cheek 3 with the movable cheek 18 forms the chamber 23 of the crushing of the superstructure product a, or a large crushing chamber. A fixed cheek 15 with a movable cheek 18 forms a crushing chamber 24 of an undercut product, or a fine crushing chamber consisting of several successive crushing zones, depending on the number of lining plates of different thickness of the cheek 15. Cheek crusher 12, feeder-screen 10 and part of the receiving bunker) and 1 are enclosed in an enclosure connected to the main aspiration system.

In order to protect the rotary feeder - roar 10 from impacts of the group of rocks when loading the bunker 1, the follower and actuating system is organized in the crusher feed unit, which provides for the presence of the waste material from the processed material 3 above the rotary feeder - screen 10, including a vertical fixed wall 25, a transverse movable beam 26 with a wall 27, in the lower part of which on the hinge 28 a butterfly valve 29 with a capacity of 30 filled with ballast 31 is fixed. In the lower part of the butterfly valve 29 a curtain of

chains 32. In the upper part of the body of the container 30 is made a lever 33, which, when turning the valve 29 with a capacity of 30 relative to the hinge 28, passes over the switch 34 and has the ability to turn it on and off. The movable beam 26 is supported by the ends of the casing 1 and with the help of screws 35 can move in a horizontal plane together with the wall

28, the rotary valve 29, with a capacity of 30 and a curtain of chains 32.

The production line also includes a conveyor 36 for receiving a coarse crushing product with pieces of size O-300 mm from chamber 23, a conveyor 37 for transferring this product to a tray 11, and then to crusher 12 into the cavity of camera 24, tray 38 for receiving the final product crushing with pieces size O-70 mm; conveyor 39 for transferring this product to successively installed devices 40 and 41 to prevent sprouting, substandard mica crystals, to enrich and sort the material into crushed commodity fractions.

The device 40 contains a boot

with a funnel 42, a cover 43, a housing 44, forming with the rotor 45 a vertical rotary crusher. Under the rotor 45 is installed spreader 46, | drive 47. Under the spreader 46 there are 48-50 concentric chambers with discharge nozzles 51

Q and 52 for the withdrawal of crushed stone fractions of 70-40 mm, 40-20 mm and the nozzle 53 for collecting material of size 0--20 mm and transferring it for subsequent processing to the device 41. The device 41 contains a feed funnel 54, 55, body 56, A rotor 57 with a spreader 58 is mounted on the drive 59; chambers 60-62 are mounted on the drive 59 with discharge pipes 63-65 to output crushed stone fractions 20-10, 10-5 mm and sand fraction 5-0.14 mm, and also central chamber 66, through pipe 67

0 connected to an additional aspiration system for suction and dust collection of size O-0.14 mm.

Flow line production of rubble works as follows.

In the position before the initial loading

 the bunker 1 of the original mining ore mass of waste from the dumps, the valve 29 is rotated clockwise relative to the hinge 28 inside the bunker by the force P of the ballast 31 located in the tank 30, and simultaneously the lever 33 passes over the switch 34 and turns it off the automation system is equal to the command to stop the rotation of the rotary feeder-rocket 10. The first portion of the source material is fed without a maximum size lump of rock. As the tank 3 of the bunker 1 is filled, the furnace mass presses the inner surface of the valve 29 and rotates it relative to the hinge 28 counterclockwise to a vertical position, in which it is balanced by the force P of the ballast 31 in the tank 30. Simultaneously when the valve 29 is turned, the lever 33 passes near the switch 34 and includes rotation of the rotary feeder-roar 10.

As the source material is produced from the hopper 1 of the furnace, the mass settles therein lower and there comes a moment when the material remains only in mark 3, and consequently, there is no backwater of the source material to the rotary valve 29, and it is possible under the action of the force P of the ballast. 31 again rotate clockwise relative to the hinge 28 to the inside of the hopper I at an angle a and by the lever 33 turn off the switch 34 to stop the motion of the rotary feeder - roar 10. But in this case, mark 3 is above the rotary feeder-roar 10 remains “The cushion that protects it from the blows of large pieces of rock during the subsequent loading of the bupker 1.

The technological process of processing the original rock mass, mica waste, occurs in the following order.

As a result of the rotation of the working screening, transporting surface of the rotary feeder - roar 10 and oscillation of the vibrating element 4 with the teeth 5, the mountain mass begins to actively move, and loose waste is loosened in the dump. Large pieces of an overlap product with dimensions greater than 300 mm are forcibly lifted from the bottom of the loading bay with the transporting, screening surface of the rotary feeder - screen 10 to its upper point, passing its way through the oscillating rock mass (turning of the pieces of rock takes place and weighted Breed trifles). There is an additional loosening of it and the simultaneous purification of large pieces of adhered particles. With further rotation of the rotor 10, large pieces of 300–900 mm in size (larger than 700 mm, pieces of rock for this material are considered “oversized”) are fed into the jaw crusher 12, the coarse crushing chamber 23 with a receiving window of 1200 × 1500 mm, taking into account the resolution of the “oversize” cutting. After coarse grinding, crushed material with pieces sizes O-300 mm goes to conveyor 36 (which is located along the discharge gap of chamber 23), then via intermediate conveyor (not shown) to conveyor 37, tray 11 and follows it to chamber 24 of fine grinding (in the same crusher on the other hand).

At the same time (i.e., simultaneously), the undersize loosened product, O-300 mm in size, from under the rotary feeder - screen 10 also goes to the tray 11 and follows it into the fine crushing chamber 24 (together with the large-scale crushing product flow supplied conveyor belt

37) in its upper zone formed by a thick lining plate 16 of the cheek 15 and the lining plate 20 of a double-sided mobile sheki 18, where it is divided into size

pieces 150 mm and is fed into the lower zone formed by the furnace lining plate 17 (located under the thick lining plate 16) of the cheek 15 and the lower part of the lining plate 20 of the movable 18.

 In the lower zone, the material is crushed to a size of 70 mm, unloaded onto tray 38, along it onto conveyor 39 and follows a selective extraction, enrichment and sorting into commodity enriched fractions of crushed stone into successively installed

devices 40 and 41.

From conveyor 39.material size O- 70 mm, containing up to 30 percent or more of splices and substandard mica crystals, is discharged into the funnel 42 (devices 40), it follows the middle of the rotor 45, which accelerates, acquires centrifugal force and flies out to the periphery bounded by the inner surface of the hull 44, from which large splices and mica crystals evolve,

5 because they have lower strength compared with the contiguous pieces of rock. Then, at the same time, uniformly sized and annular streams, the material is fed down to the spreader 46, with which it is accelerated,

0 acquires a charge of energy proportional to its masses (and, consequently, its size) and a fan flies in a horizontal plane at the periphery.

Depending on the mass (equal to the size) large pieces of rock with a size of 70-40 mm

5 flies farther and lower into chamber 50, and then into discharge pipes 52. Smaller pieces of 40-20 mm in size are lowered into chamber 49, then into discharge pipes 51.

The rest. Material size O-20 mm.

0

containing small intergrowths smaller than

20 mm is lowered into the central chamber 48 and further along the nozzle 53 enters the next processing sorting device 41, into the feed hopper 54, through it into the rotor 57 area, through which (as in device 40) it accelerates, acquires centrifugal force , flies out of the rotor, strikes the inner surface of the housing 56, resulting in selective ejection of small

splices and fine mica crystals. The material is then lowered in an annular flow onto the spreader 58, on which it is accelerated and fanned out in a horizontal plane.

Pieces of rock, 20–10 mm in size, opus 5, are placed in chamber 62, and then into discharge pipes 65. Pieces of rock, 10–5 m in size, are lowered into chamber 61, and then into discharge pipes 64. Sand 5-0 in size, 14 mm is lowered into the cavity

60, and then enters the discharge nozzles 63. Dust-like particles of a size O-0.14 mm are sucked into the central chamber 66 and are directed through the nozzle 67 into the aspiration system.

The application of the proposed production line makes it possible to organize the technology for the production of crushed stone from waste mica flag-pit ores, which preserves the crushing of raw materials, which allows crushing the raw material from the size of pieces of rock 800–900 mm to a size, for example, 70 mm in one machine, to solve the problem of littering splices and crystals of substandard mica, sorting the product into commercial fractions of crushed stone 70-40, 40--20, 20-10, 10-5 mm with the least amount of less metal-consuming technological equipment and with less expenditures in on construction and installation works.

The invention makes it possible to improve the quality of the finished product and reduce its cost.

Claims (2)

1. A crushed stone production line mainly from mica waste, containing a receiving hopper, rotary feeder-rumble, jaw crusher with lined cheeks, aspiration system and transfer transport, in order to increase the quality of the finished product and reduce its cost , the line is equipped with a selective crushing device installed at the exit of the jaw crusher, and an additional aspiration system; the jaw crusher is made in the form of two series-connected transmental A crushing chamber formed by two fixed and movable cheeks located between them, a movable cheek is installed under the feeder-roar, while the lining of the fixed cheek of the crushing chamber of the sublattice product is made in stepwise decreasing thickness along the material, and the selective crushing device is made in the form of a vertical rotor crusher and centrifugal chambers, the central of which is connected to an additional aspiration system, and a sprinkler mounted under the rotor. 2. Line by n. 1, characterized in that it is provided with at least one additional selective crushing device, wherein the central chamber of the main device is connected to the inlet of the additional one), and the central chamber of the latter is connected to the aspiration system. / 34 35 FIG. 2 Compiled by L. Rudenko Tehred I. VeresKorrektor I. Muska Circulation 573 Subscription VNIIPI USSR State Committee for Inventions and Discoveries 113035, Moscow, F - 35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4 Editor S. Lisin Order 5254/8