SU1507207A3 - Pulsed settling machine for concentration ,particularly, of coal - Google Patents

Abstract

The invention relates to the enrichment of coal and reduces the energy consumption of the jigging machine. For this, it is provided with a pulsation chamber in communication with the cylindrical working compartment 1 and bounded by a vertical wall 15 connected to its conical part, an outer wall 13 and a dividing wall. An arc-curved bottom is welded to the walls 13 and 15, the lower part of which is perforated and communicates with the discharge pipe 17 and the discharge pipe 18. At the bottom of the wall 13 there is a pipe 19 for the bottom water supply, in front of which is a valve 20. Inside the chamber of the working compartment 1 a jigging screen 3 and a float 11 are installed to control the thickness of the layered products at screen 3. A drive shaft (PV) is mounted on the bearings above the water surface in the pulsation chamber. A wheel (PC) is seated on the PV. It consists of a side wall 21 connected to the outer shield 22 and connected to the outer ring 23 on the other hand. Inside the PC there is a perforated rim 24 at an acute angle, 13 PCs above the chute above the wall form tray 25 with a hard bottom 26. To the rim 24 attached scoop blades. Inside the PC, a displacer from two planes 29 installed with a gap is placed on the hub mounted on the PV. Between them there is a curvilinear rigid rim with the formation of symmetric with PV plungers. Drive PV is made in the form of an electric motor, gear 39, couplings 40 and planetary gear. The sinking product under the action of its own weight slides into the chamber of the PC, from which the blades on the rim 24 rises up and goes to the tray 25. When rotating the RO, the propellant is immersed in the liquid and displaces it. The rotational speed of the PV is adjusted to the number of pulsations required for enrichment and can be adjusted by varying the rotational speed of the PV motor. When the displacer plungers are alternately submerged, the enriched coal is loosened and the waste is separated from the concentrate. 4 hp ff, 3 ill.

Description

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arc-curved bottom, the lower part of which is perforated and in communication with the discharge pipe 17 and the discharge pipe 18. At the bottom of the wall 13 there is a pipe 19 for the lower water supply, in front of which a valve 20 is installed. Inside the working compartment 1 there is a jigging screen 3 and a float 11 to control the thickness of the layers of products on screen 3. On the bearings above the surface of the water in the pulsation self-meter there is a drive shaft (PV). A lifting wheel (PC) is seated on the PV, consisting of a side wall 21 connected to an external flap 22, on the other hand connected to an external ring 23. Inside the PC, a perforated rim 24 is mounted at an acute angle, above the wall 13 PCs connected to a chute in the form of a tray 25 with a rigid bottom 26. To the rim 2D attached scoop blades.

Inside the PC, a displacer from two planes 29 installed with a gap is placed on the hub mounted on the PV. Between them there is a curvilinear rigid rim with the formation of symmetric with PV plungers. Drive PV vygpolnen in the form of an electric motor, gear 39,

AO clutches and planetary gear. The sinking product under the action of its own weight slides into the chamber of the PC, from which the blades on the rim 24 rises up and goes to the tray

25. When rotating the PV, the displacer is immersed in the liquid and displaces it. The rotational speed of the PV is adjusted to the number of pulsations required for enrichment and can be adjusted by varying the rotational speed of the PV motor. When the displacer plungers are alternately submerged, the enriched coal is loosened and the waste is separated from the concentrate. 4 hp ff, 3 ill.

This invention relates to the enrichment of coal, in particular.

The purpose of the invention is to reduce the energy intensity of the jigging machine.

Figure 1 shows a jigging pulsating machine, top view; in fig. 2 - section A-A in FIG. 1} in FIG. 3 — section BB in FIG. 2.

A pulsation jigging machine for enrichment, in particular, coal in an aqueous medium, consists of a cylindrical working compartment 1 in the form of a water-filled bath in which the enrichment process takes place. In the liquid works lifting wheel, planted on the drive shaft 2.

The working compartment 1 is divided into lower and upper parts by a jigging screen 3, the upper part being separated from the lifting wheel by a wall A reinforced with a profile in the upper part, the lower part of the working compartment 1 is cut in the direction of the lifting wheel and bounded by an inclined wall 5 The sides of the lifting wheel are equipped with a fluid motion guide 6. The working compartment 1 is equipped with a vent on one side on the shorter side

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A bom 7 for a mineral, under which water nozzles 8 are installed. The wire on which the water nozzle 8 is installed is equipped with a valve 9. On the opposite side of the discharge chute 7 on the shorter side of the working compartment 1 there is a discharge nipple 10 for a light enriched product of beneficial fossil. The working compartment 1 is also equipped with a float 11 for adjusting the thickness of the puffed products on the jigging screen 3. In the working compartment 1 behind the float 11 a movable partition (not shown) is mounted, which directly controls the thickness of the sinking product and dispenses it under the jigging screen 3 onto the inclined wall 5, from where it is guided to the lifting wheel. The vertical walls of the work compartment 1 are supported on a support structure 12 consisting of profiles.

The chamber of the lifting wheel, which at the same time is a pulsation chamber, consists of an outer wall 13, to which the bottom 14 is arc-shaped, and on the other hand is connected to a vertical wall 15,

connected to the inclined wall 5 of the working compartment 1. At the lowest point of the bottom 14 there is a grid 16 located in the outlet port 17 for a heavy product, equipped with a flange in the lower part, which is connected to the flange of the discharge pipe 18, B its lower part has a pipe 19 for supplying the lower water, in front of which a valve 20 is installed.

The lifting wheel consists of a side wall 21 connected to the outer flap 22, and on the other hand to the outer ring 23 on the rim of the flap 22 located on the side of the working compartment 1.

Inside the elevator wheel, a perforated rim 24 is installed at an acute angle, above the side wall 13 of the chamber connected to the chute in the form of a tray 25 having a rigid bottom 26, which leads to a sinking

product with a lifting wheel. To the perforator 25 rotating the outflow of fluid to the outside of the rim 24 are attached cherk from the camera of the lifting wheel, pack vanes 27. Perforated The value of the gear ratio of the plate serves for lifting and dewatering transmission when selecting a sinking product and additionally plays the role of a guide, which directs the flow of liquid under the jigging screen 3 of the working compartment 1. The perforated rim 24 and the scoop vanes 27 for the sinking product are made of wear-resistant sheet material.

A displacer consisting of two plungers made of two lateral planes 29 connected by a curved outer rim 30 can be placed inside the lifting wheel on the hub 28 wedged on the drive shaft 29 connected to the upper and lower portions of the bent sheet 30 removable lining 31, which changes the displacer plunger volume. The displacer in the vertical section has the shape of a closed hourglass.

The drive shaft 2 rotates in the rolling bearings 32 and 33 mounted on the level of liquid in the working compartment 1, the bearing housing 32 rolling rests on the supporting structure 34 consisting of profiles, and the housing 35 of the rolling bearing 33 is suspended on the support beam 36, located near the wall 4 of the working compartment 1. The drive shaft 2 consists of an electric motor 37, a coupling 38,

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you're 40 and planetary gear. A housing 41 of a planetary gear assembly consisting of an internal gear 22, an axle gear 42, and a wheel 44 wedged on the natural shaft 2 is connected to the rolling bearing housing 32.

Planetary wheels 43 are planted on rollers 45, placed in the housing 41 of the planetary gear. The gear wheel 42 is inseparably connected to the flange (shield) 46, welded to the steel 47, mounted on the sleeve 48, planted on the drive shaft 2.

The hub 47 of the second end is connected to the drive ring 49 of the lifting wheel, detachably connected by means of bolts to the side wall 21 of the lifting wheel. The driving ring 49 is separated by a bent element 50 of the outer wall 13, ending with a labyrinth seal 51, to prevent

The enrichment facilities are tested and adjusted to the maximum amount of the sinking product of the mineral. It is also possible to use conventional gear with face engagement to drive the drive shaft 2 and the lift wheel, but in this case the drive of the device is moved relative to the transverse axis by an amount resulting from the distance between the axes of the gear wheels.

Between the displacer and the perforated rim 24 of the lifting wheel is mounted carrier unit 52 in the form of a channel, connected to a retaining beam 36, at both ends of which

there are bolts 53 with balancers 54 suspended from them, made of sheet material, connected at the bottom with a welded sheet 55, which, together with the block 56

limits the passage of fluid to the top of the lift wheel.

A device for enriching coal in an aqueous medium — a pulsating jigging machine — can

to be tkzhe executed two desirable

depending on the required performance.

The enrichment of rock coal in the aquatic environment with the aid of the proposed jigging machine is that the rock to be enriched is dosed evenly using a vibrating hopper or other dispenser to the chute 7, from which it enters the working compartment 1 filled with liquid, where it undergoes the enrichment process . The movement of the product in the working compartment 1 is carried out by means of the upper fluid supplied to this chute through the nozzles 8. The amount of fluid required is controlled by the valve 9. The enriched fossil concentrate is transported in the upper layer in the working compartment 1 with pipe 10, and from there to the dewatering device. At the same time, the product sinking in a liquid with a septum (not provided) is guided under the jigging screen 3 onto the inclined wall 5, from which, under its own weight, slides into the chamber of the lifting wheel, from which scoop blades 27 on the perforated rim 24 rises and It is transferred to a discharge chute 25, with the aid of which it is directed to dewatering devices. The sinking product is also partially dewatered on a perforated rim 24 of the lifting wheel. After dehydration of the fossil interlayers carried out by the lifting wheel, they are crushed and re-enriched in order to recover coal residues. If the lifting wheel takes out the waste (stone), then it is sent to the waste bunker, from which it is loaded onto vehicles and taken to landfill.

The enrichment process of coal occurs due to the pulsation of water excited by the electric motor 37. Rotation from the engine through the coupling 38 is transmitted to the gear transmission 39, the coupling 40 and to the drive shaft 2, on which a double propellant is fixed. As the drive shaft 2 rotates, the displacer is immersed in a liquid, which causes its displacement equal to the volume of the immersed part of the displacer. During one revolution of the drive shaft 2, the plunger is submerged twice, i.e. two pulsations are excited. The magnitude of the Sr amplitude depends on the displacer volume.

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separation 1. The amplitude value can be selected depending on the properties of the enriched coal by empirical testing and preliminary start-up of the enrichment device.

The increase or decrease in the displacer plunger volume is controlled by the overlays 31, which are superimposed or removed during the test run. The rotational speed of the drive shaft 2 is adjusted to the fossil number of pulsations required for enrichment, and it can be infinitely adjustable during operation of the enrichment device in the range of 40-100 cycles / min. This adjustment is made by varying the rotational speed of the electric motor 37 or, if necessary, the hydraulic motor, which can also be used to drive the device. The speed of rotation of the lifting wheel is less than the speed of rotation of the drive shaft 2, since the device uses a planetary gear connected to the hub 47, which is connected to the driving ring 49 nd of the ibeMHoro wheels. The lifting wheel lifts the sinking product at a speed of 1-8 m / s. During rotation of the drive shaft 2, the plungers of the displacer are alternately immersed, which causes the level of liquid in the working compartment 1 to rise by Sr, and thereby loosening the enriched mineral and separating the waste from the concentrate. The heavier grains under the action of pulsation fall on the jigging screen 3 in the working compartment 1, and the lighter grains move with the upper liquid in the working compartment 1 and are discharged through the nozzle 10.

The falling heavy grains accumulate in the layer at the jigging screen 3. The thickness of the layered products is controlled by the float 11, which with the help of a leverage system acts on the hydraulic servo motor that opens or closes the exit slit of the heavy product under the jigging screen 3. The solid product settles into fluid, falls on the inclined wall 5, on which it slides in the direction of the lifting wheel. Bottom water is fed to working compartment 1 through fitting

19, and its quantity is regulated by valve 20,

The pulsation jigging machine with a displacing device is intended, in particular, to enrich the coal fines with granulation up to 50 mm, as well as other minerals.

Claims (2)

Invention Formula 1, Pulsating jigging machine for enrichment, in particular, coal, including a cylindrical working compartment in the form of a water-filled chamber in which a jigging screen is installed, a discharge port for the light and a device for unloading heavy products, a float for adjusting the thickness of the layer products on a jigging screen and a device for pulsating water in the working compartment, characterized in that, in order to reduce energy consumption, it is equipped with a pulsation chamber, which is working compartment and limited connected to the conical part of the worker 30 in the housing of the planetary gear, dental vertical wall and outer wall, which are welded arc-curved bottom, the lower part of which is perforated and communicated with the outlet and outlet pipe, and a dividing wall, the device for unloading a heavy product is made in the form of a lifting wheel mounted on the drive shaft consisting of an outer shield, an outer ring, a side wall, a perforated plate This rim, chute, made in the form of a tray with a rigid bottom, and black blades, is closed by a displacer and perforated and fixed on a perforated rim, the outer shield from the dividing wall is connected to the outer ring, on the opposite side to the side wall, and the perforated rim is mounted on the upper edge of the outer wall at an angle relative to the horizontal inside the lifting wheel and connected to the chute, a device for creating 50 the house of the lift wheel is connected to the supporting beam, the sheets are installed with the possibility of interaction with the pads, and the balance weights are suspended by bolts. 5. Machine on PP. 1-4, which is equipped with removable pads installed in the upper and lower parts of the curvilinear rigid rim. ripple in the working compartment sled-. Nano in the form of a displacer mounted on a hub mounted on the drive shaft of the lifting wheel, consisting of two planes installed with a gap, between which there is a curvilinear stiff rim between which and two pulses are symmetrically symmetric with respect to the drive shaft - the indoor chamber above the water surface. 2. Machine pop, 1, distinguished by the fact that it is equipped with a pipe installed at the bottom of the lifting wheel for supplying the lower water and a valve placed above it. 3, the Machine on PP. 1 and 2, that is, that the lift shaft drive is made in the form of an electric motor, gear train, clutches and planetary gear, which consists of a gear wheel with internal gearing, planetary wheels and wheels planted on the drive shaft, with the planetary wheels planted on rollers arranged The wheel is permanently connected to a flange welded to the hub, which is fixed at one end to a hub mounted on the drive shaft, and the other end is connected to a drive ring, detachably connected to the side wall of the lifting wheel. 4. The machine according to claim 1, characterized in that it is provided with a supporting structure, a supporting beam with bolts and balancers located at both ends, sheets and pads, while the supporting structure is installed between 0 the house of the lift wheel is connected to the supporting beam, the sheets are installed with the possibility of interaction with the pads, and the balance weights are suspended by bolts. 5. Machine on PP. 1-4, which is equipped with removable pads installed in the upper and lower parts of the curvilinear rigid rim. 0 fM.r Yu i l No