CN210079783U

CN210079783U - Ore sorting machine

Info

Publication number: CN210079783U
Application number: CN201920812065.4U
Authority: CN
Inventors: 黄亚飞
Original assignee: ZHUZHOU TIANQIAO SHUNCHEN COAL PREPARATION MACHINERY CO Ltd
Current assignee: ZHUZHOU TIANQIAO SHUNCHEN COAL PREPARATION MACHINERY CO Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-02-18
Anticipated expiration: 2029-05-31

Abstract

The ore separator comprises a separator barrel, an overflow area arranged at the top of the separator barrel, a material feeder arranged at the top of the overflow area, a density sensor extending into the separator barrel along the axial direction, a pressure bin arranged at the bottom of the separator barrel, a water distribution plate communicated with the pressure bin and the separator barrel, an ascending flow pipeline system communicated with the pressure bin, and an automatic discharging device used for controlling the opening and closing of a discharging port at the bottom of the separator barrel, and further comprises a stirring device capable of rotating along the circumferential direction and lifting along the axial direction in the separator barrel, wherein the stirring device extends into the separator barrel along the axial direction and expands along the radial direction in the separator barrel, and the stirring device, the density sensor and the automatic discharging device are uniformly and coordinately controlled by a controller. The utility model discloses thoroughly solved the problem of ore dressing separator water distribution board hole jam, it is more stable that the internal separation flow field of separator cylinder is difficult for forming the swirl in the separation region, the mismatch when having significantly reduced the separation, selects separately the precision and obtains improving, has reduced the clean coal loss.

Description

Ore sorting machine

Technical Field

The utility model relates to an ore separator belongs to sorting equipment technical field.

Background

The ore separator can be used for grading materials with different granularity levels, can also be used for separating materials with narrow granularity levels, and is particularly widely applied to the coal separation industry. The ore separator makes the pre-desliming of raw coal possible due to its simple structure, accurate control and good separation effect, and its greatest characteristic is that it can effectively separate coal slime only by circulating water without any medium and agent, and its successful operation greatly reduces the coal slime amount entering the following heavy medium system. When the ore sorting machine works, the ore pulp material is fed into a feeding system of the equipment, water is pumped into a pressure bin at the bottom of the sorting machine by a pump according to preset pressure and flow velocity and is uniformly distributed to the bottom of the ore sorting machine through a water distribution plate to form stable upward water flow, and descending materials meet the upward water flow to form an interference layer. The particles in the feed do the disturbing sedimentation movement in the sorting machine, and the disturbing sedimentation velocity has difference due to the different density among the particles, thereby providing the basis for sorting. When the material reaches a stable state, the discharge valve is controlled by a signal sent by a density control system in the interference bed layer, particles with the density higher than the average density of the interference bed layer in the feed material enter heavy products and are discharged through a discharge port at the bottom, and materials with low density are discharged through overflow, so that the sorting process is completed.

Practice tests show that the ore separator has obvious separation effect on easy-separation coal separation, can obviously reduce the ash content of clean coal, and has poor separation effect on difficult-separation coal separation. The core problem of ore separator separation is, there will be stable rising rivers, and a large amount of heavy products can produce the phenomenon of blockking up the water distribution diaphragm hole when the sorter bottom is gathered, and comparatively general, then it is uneven to have led to the rising stream distribution, and the pressure fluctuation is great, and the flow field is unstable in the sorter, easily forms the swirl in the separation region, has increased the mismatch when sorting, selects separately the precision and receives the restriction, always appears the phenomenon that the waste rock takes the cleaned coal and the cleaned band waste rock, has influenced product quality, causes the cleaned coal loss. Finally, the separation effect is influenced, and the influence on the separation of the coal difficult to separate is larger.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ore separator has thoroughly solved the problem of ore separator water distribution board hole jam, and the internal separation flow field of separator cylinder is more stable, is difficult for forming the swirl in the separation region, and the mismatch when having significantly reduced the separation obtains improving, has reduced the clean coal loss.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the ore separator comprises a separator barrel, an overflow area arranged at the top of the separator barrel, a material feeder arranged at the top of the overflow area, a density sensor extending into the separator barrel along the axial direction, a pressure bin arranged at the bottom of the separator barrel, a water distribution plate communicated with the pressure bin and the separator barrel, an ascending flow pipeline system communicated with the pressure bin, and an automatic discharging device used for controlling the opening and closing of a discharging port at the bottom of the separator barrel.

Preferably, the top of the overflow area is provided with a mounting frame, and the density sensor, the automatic discharging device and the stirring device are respectively arranged on the mounting frame.

Preferably, the stirring device comprises a hydraulic telescopic cylinder which is axially arranged and can be axially stretched and retracted, stirring blades which are arranged on the periphery of the hydraulic telescopic cylinder and can be lifted along with the stretching of the hydraulic telescopic cylinder, and a motor for controlling the rotation of the hydraulic telescopic cylinder, the hydraulic telescopic cylinder and the motor are arranged on the mounting frame, the hydraulic telescopic cylinder extends into the separator cylinder, and the stirring blades are positioned in the separator cylinder and are radially arranged.

Preferably, the stirring blades are axially and separately distributed on the hydraulic telescopic cylinder in multiple layers, the number of the stirring blades on each layer is at least two, the initial axial position of the stirring blade on the uppermost layer is positioned below the density sensor, and the initial axial position of the stirring blade on the lowermost layer is close to the water distribution plate.

Preferably, the hydraulic telescopic cylinder is arranged along the central axis of the separator cylinder body, and the included angle between the paddle and the hydraulic telescopic cylinder is small.

Preferably, automatic discharge device include along take out to the setting and have the flexible function of axial arrange material hydraulic telescoping rod and adorn at row material hydraulic telescoping rod flexible end and with the corresponding discharge outlet stopper of the bottom discharge outlet of sorter barrel, row material hydraulic telescoping rod fix on the mounting bracket, and stretch into to the bottom discharge outlet of sorting machine barrel in, the discharge outlet stopper is sealed with the bottom discharge outlet of sorter barrel.

Preferably, the hydraulic telescopic cylinder is a hollow hydraulic telescopic cylinder, and the discharge hydraulic telescopic rod coaxially penetrates through the hydraulic telescopic cylinder and extends into a discharge port at the bottom of the cylinder body of the sorting machine.

The utility model discloses a theory of operation is:

when the ore separator works, materials are fed from the material feeder, water is pumped into the pressure bin through the ascending flow pipeline system according to preset pressure and flow velocity, the water is uniformly distributed into the separator barrel through the water distribution plate to form stable ascending water flow, and the descending materials meet the ascending water flow to form an interference layer; the particles in the feed material do interfering sedimentation movement in the sorting machine, because of the difference of the density between the heavy product and the light product, the interfering sedimentation velocity has difference, the particles with the density higher than the average density of the interfering bed layer in the feed material enter the heavy product and are discharged through a discharge outlet at the bottom of the sorting machine, the materials with low density are discharged from an overflow area, and the sorting process is completed; after the density of the bottom of the separator cylinder reaches a certain degree, the controller controls the stirring device to be opened according to the sensing signal of the sealing sensor, the stirring device starts to rotate, the materials are loosened in the cylinder, the stirring device can do lifting motion according to the accumulation condition of heavy products, the rotation is from bottom to top, the separation flow field in the separator cylinder is more stable, vortexes are not easily formed in the separation area, the heavy products are secondarily separated, the sunk light products enter the overflow area again, and the heavy products are prevented from being excessively accumulated at the bottom of the cylinder to form unsmooth discharge and blockage of water distribution plate holes.

The utility model has the advantages that:

1. the problem of ore separator water distribution plate hole jam has thoroughly been solved, and the sorting flow field is more stable in the sorter barrel, is difficult for forming the swirl in the separation region, and the mismatch when having significantly reduced the selection is selected separately, and the sorting precision obtains improving, has reduced the clean coal loss.

2. The stirring device rotates to the flow field in the separator cylinder body, so that a separation process is added for some materials which are not completely separated, and large-particle light products sinking to the bottom float up under the lifting action of the stirring device, so that the large-particle light products enter an overflow area, clean coal can be greatly reduced and enter a gangue system, and the loss of coal is recovered.

3. The rotation of the stirring device enables a large amount of heavy products at the position of the water distribution plate to be quickly discharged through the discharge port, the gravity flow time of the heavy products is reduced, the blockage probability of the discharge port of the ore separator is greatly reduced, and meanwhile, the processing capacity of the ore separator is also improved.

4. The automatic discharging device and the stirring device are designed in a coaxial penetrating mode, the occupied space of equipment in the separator cylinder is reduced, the material separation space of the separator is improved, and the separation efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following describes an embodiment of the present invention in detail with reference to fig. 1.

The ore separator comprises a separator barrel 1, an overflow area 2 arranged at the top of the separator barrel 1, a material feeder 3 arranged at the top of the overflow area 2, a density sensor 4 axially extending into the separator barrel 1, a pressure bin 5 positioned at the bottom of the separator barrel 1, a water distribution plate 6 communicated with the pressure bin 5 and the separator barrel 1, an ascending pipeline system 7 communicated with the pressure bin 5 and an automatic discharging device 8 used for controlling the opening and closing of a discharging port at the bottom of the separator barrel 1, and is characterized by further comprising a stirring device 9 capable of rotating along the circumferential direction and lifting along the axial direction in the separator barrel 1, wherein the stirring device 9 axially extends into the separator barrel 1 and radially expands in the separator barrel 1, and the stirring device 9, the density sensor 4 and the automatic discharging device 8 are coordinately controlled by a controller.

In the ore separator shown in the figure, when the ore separator works, materials are fed from a feeding device, water is pumped into a pressure bin 5 through an ascending flow pipeline system 7 according to preset pressure and flow rate and is uniformly distributed into a separator barrel 1 through a water distribution plate 6 to form stable ascending water flow, and descending materials meet the ascending water flow to form an interference layer; the particles in the feed material do interfering sedimentation movement in the sorting machine, because of the difference of the density between the heavy product and the light product, the interfering sedimentation velocity has difference, the particles with the density higher than the average density of the interfering bed layer in the feed material enter the heavy product and are discharged through a discharge outlet at the bottom of the sorting machine, the materials with low density are discharged from an overflow area, and the sorting process is completed; after the density of the bottom of the separator cylinder reaches a certain degree, the controller controls the stirring device 9 to be opened according to the sensing signal of the sealing sensor 4, the stirring device starts to rotate, so that materials are loosened in the cylinder, the stirring device 9 can do lifting motion according to the accumulation condition of heavy products, the rotation is from bottom to top, a separation flow field in the separator cylinder 1 is more stable, vortexes are not easily formed in a separation area, the heavy products are secondarily separated, the sunken light products enter an overflow area again, and the heavy products are prevented from being excessively accumulated at the bottom of the cylinder to form unsmooth discharge and blockage of water distribution plate holes.

Wherein, the top of the overflow area 2 is provided with a mounting rack 10, and the density sensor 4, the automatic discharging device 8 and the stirring device 9 are respectively arranged on the mounting rack 10. The installation of the density sensor 4, the automatic discharging device 8 and the agitating device 9 is facilitated.

Wherein, agitating unit 9 include along the axial setting and can follow the flexible hydraulic stretching cylinder 91 of axial and adorn in the flexible cylinder 91 periphery of hydraulic stretching cylinder 91 and along with the flexible stirring paddle 92 and the motor 93 that is used for controlling the flexible cylinder 91 pivoted of hydraulic stretching cylinder 91 that goes up and down, hydraulic stretching cylinder 91 and motor 93 dress are on mounting bracket 10, hydraulic stretching cylinder 91 stretches into to sorter barrel 1 in, stir paddle 92 and be located sorter barrel 1 in and along radial setting. The hydraulic telescopic cylinder 91 realizes the lifting of the stirring blades 92, the stirring blades 92 can move in two directions of lifting and rotating in the separator cylinder 1, so that materials are loose in the cylinder, according to the accumulation condition of heavy products, the stirring device can do lifting movement, the rotation is from bottom to top, the separation flow field in the separator cylinder is more stable, vortexes are not easily formed in the separation area, the heavy products are separated for the second time, the sunk light products enter the overflow area again, and the heavy products are prevented from being excessively accumulated at the bottom of the cylinder to form unsmooth discharge and blockage of water distribution plate holes.

The stirring blades 92 are axially and separately distributed on the hydraulic telescopic cylinder 91 in multiple layers, the number of the stirring blades 92 on each layer is at least two, the stirring efficiency and the stirring effectiveness are improved, the initial axial position of the stirring blade 92 on the uppermost layer is positioned below the density sensor 4, the initial axial position of the stirring blade 92 on the lowermost layer is close to the water distribution plate 6, and heavy products can be effectively prevented from being excessively accumulated at the bottom of the cylinder body to form unsmooth discharge and blockage of holes of the water distribution plate.

The hydraulic telescopic cylinder 91 is arranged along the central axis of the separator cylinder 1, the included angle between the stirring blade 92 and the hydraulic telescopic cylinder 91 is small at 90 degrees, and the stirring efficiency of the single stirring blade 92 is improved.

Wherein, automatic discharge device 8 include along take out to setting up and have the flexible function of axial arrange material hydraulic telescoping rod 81 and dress arrange the flexible end of material hydraulic telescoping rod 81 and with the corresponding discharge outlet stopper 82 of the bottom discharge outlet of sorter barrel 1, arrange material hydraulic telescoping rod 81 and fix on mounting bracket 10, and stretch into to the bottom discharge outlet of sorting machine barrel 1 in, discharge outlet stopper 82 is sealed with the bottom discharge outlet of sorter barrel 1. The lifting of the discharging port plug 82 is controlled by the extension and retraction of the discharging hydraulic telescopic rod 81, so that the opening and closing of the discharging port at the bottom of the separator cylinder 1 are controlled.

Wherein, hydraulic telescoping cylinder 91 be cavity formula hydraulic telescoping cylinder, row material hydraulic telescoping rod 81 coaxial pass hydraulic telescoping cylinder 91 and stretch into to the bottom bin outlet of sorting machine barrel 1, make the coaxial agitating unit 9 that runs through of automatic discharging device 8, reduce the equipment occupation space in the sorting machine barrel, improve the sorting material space of sorter, promote sorting efficiency.

The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. The ore separator comprises a separator cylinder (1), an overflow area (2) arranged at the top of the separator cylinder (1), a feeder (3) arranged at the top of the overflow area (2), a density sensor (4) axially extending into the separator cylinder (1), a pressure bin (5) positioned at the bottom of the separator cylinder (1), a water distribution plate (6) communicated with the pressure bin (5) and the separator cylinder (1), an upflow pipeline system (7) communicated with the pressure bin (5) and an automatic discharging device (8) used for controlling the opening and closing of a discharging port at the bottom of the separator cylinder (1), and is characterized by further comprising a stirring device (9) which can rotate in the circumferential direction and lift in the axial direction in the separator cylinder (1), wherein the stirring device (9) axially extends into the separator cylinder (1) and radially expands in the separator cylinder (1), the stirring device (9), the density sensor (4) and the automatic discharging device (8) are coordinately controlled by the controller.

2. The ore separator according to claim 1, characterized in that the top of the overflow area (2) is provided with a mounting frame (10), and the density sensor (4), the automatic discharging device (8) and the stirring device (9) are respectively arranged on the mounting frame (10).

3. The ore separator according to claim 2, wherein the stirring device (9) comprises a hydraulic telescopic cylinder (91) which is axially arranged and can be axially stretched and retracted, a stirring paddle (92) which is arranged on the periphery of the hydraulic telescopic cylinder (91) and can be lifted along with the stretching of the hydraulic telescopic cylinder (91) and a motor (93) for controlling the rotation of the hydraulic telescopic cylinder (91), the hydraulic telescopic cylinder (91) and the motor (93) are arranged on the mounting frame (10), the hydraulic telescopic cylinder (91) extends into the separator cylinder (1), and the stirring paddle (92) is positioned in the separator cylinder (1) and is radially arranged.

4. The ore separator according to claim 3, characterized in that the stirring paddles (92) are axially spaced in multiple layers on the hydraulic telescopic cylinder (91), the number of the stirring paddles (92) in each layer is at least two, the initial axial position of the stirring paddle (92) in the uppermost layer is located below the density sensor (4), and the initial axial position of the stirring paddle (92) in the lowermost layer is close to the water distribution plate (6).

5. The ore separator according to claim 4, characterized in that the hydraulic telescopic cylinder (91) is arranged along the central axis of the separator cylinder (1), and the included angle between the stirring paddle (92) and the hydraulic telescopic cylinder (91) is 90 degrees.

6. The ore separator according to claim 3, characterized in that the automatic discharging device (8) comprises a discharging hydraulic telescopic rod (81) which is arranged along the drawing direction and has an axial telescopic function and a discharging port plug (82) which is arranged at the telescopic end of the discharging hydraulic telescopic rod (81) and corresponds to the bottom discharging port of the separator cylinder (1), the discharging hydraulic telescopic rod (81) is fixed on the mounting frame (10) and extends into the bottom discharging port of the separator cylinder (1), and the discharging port plug (82) seals the bottom discharging port of the separator cylinder (1).

7. The ore separator according to claim 6, characterized in that the hydraulic telescopic cylinder (91) is a hollow hydraulic telescopic cylinder, and the discharging hydraulic telescopic rod (81) coaxially penetrates through the hydraulic telescopic cylinder (91) and extends into the bottom discharge port of the separator cylinder (1).