A three-product heavy medium cyclone for spodumene ore separation

Abstract

The invention discloses a three-product heavy medium cyclone for spodumene ore sorting, which relates to the field of heavy medium cyclone technology and comprises a small circular plate, which is used to block fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged at the tail of the vortex. The bottom of the small circular plate is rotatably connected with a pushing mechanism through a rotating bolt. The three-product heavy medium cyclone for spodumene ore sorting, by arranging a small circular plate at the bottom of a cyclone tube to block it, makes the fine-grained spodumene concentrate, middlings and tailings products be squeezed and moved upward in advance, and prevents a small amount of fine-grained spodumene concentrate, middlings and tailings products gradually approaching a discharge port from being mixed with some heavy media and thus being taken out of the discharge port together. The corrugated thin strips are used to stir and separate a large amount of heavy media that spirally moves downward, and prevents a large amount of heavy media from being concentrated and attached together, resulting in a small amount of fine-grained spodumene concentrate, middlings and tailings products being mixed in and taken out of the discharge pipe together.

Description

Technical Field

[0001] The invention relates to the technical field of heavy medium cyclones, and in particular to a three-product heavy medium cyclone for separating spodumene ore. Background Art

[0002] In the process of feeding the full-size (without desludging) three-product non-pressure heavy medium cyclone separation, the separated spodumene concentrate, spodumene middlings and tailings are firstly de-mediumized by a de-medium screen with a sieve opening of 0.3-0.5mm. The part above the screen is coarse-grained spodumene concentrate, middlings and tailings, and the part below the screen is fine-grained ore and heavy medium of spodumene concentrate, middlings and tailings. The part below the screen is fed to the magnetic separator of each product respectively, and the heavy medium is recovered by magnetic separation of each product. The non-magnetic separator of the magnetic separator The products are fine-grained spodumene concentrate, middlings and tailings. This part of the material is fed into the hydrocyclone and dewatering screen for recovery. The overflow of the hydrocyclone enters the sewage treatment process. The products on the dewatering screen are dehydrated fine-grained spodumene concentrate, middlings and tailings. Through this process, on the one hand, the comprehensive yield and comprehensive recovery rate of heavy medium separation will be greatly improved. On the other hand, the three products of concentrate, middlings and tailings can be effectively separated at one time through the pressure-free three-product heavy medium separation process.

[0003] When the cyclone separates the heavy medium and fine-grained spodumene concentrate, middlings and tailings products, a small amount of fine-grained spodumene concentrate, middlings and tailings products that gradually approach the discharge port will be mixed with some heavy medium and thus carried out of the discharge port. Over time, more and more fine-grained spodumene concentrate, middlings and tailings products will be discharged from the discharge port, resulting in waste and difficulty in continuing the dehydration process. Therefore, we proposed a three-product heavy medium cyclone for spodumene ore sorting. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a three-product heavy medium cyclone for spodumene ore sorting, comprising: a cyclone tube, which is used to separate the heavy medium from the fine-grained spodumene concentrate, the middlings and the tailings products through vortex separation, and the outer side of the cyclone tube is provided with a feed pipe; a blocking device, which is used to block the fine-grained spodumene concentrate, the middlings and the tailings products that are about to be discharged at the tail of the vortex, to prevent a small amount of fine-grained spodumene concentrate, the middlings and the tailings products that gradually approach the discharge port from being mixed with some heavy medium and thus being taken out of the discharge port together; a pre-screening device, which is used to separate the heavy medium from the fine-grained spodumene concentrate, the middlings and the tailings products that are about to be discharged at the tail of the vortex, and to prevent the fine-grained spodumene concentrate, the middlings and the tailings products that are gradually approaching the discharge port from being mixed with some heavy medium and thus being taken out of the discharge port together; and a pre-screening device, which is used to separate the heavy medium from the fine-grained spodumene concentrate, the middlings and the tailings products that are about to be discharged from the vortex. and tailings products for preliminary screening treatment, to prevent excess fine material from being discharged from the bottom when a large amount of fine material with a small proportion of heavy medium flows into the bottom of the cyclone; the outer side of the cyclone tube is connected to one side of the feed pipe; wherein the material blocking device comprises: a small circular plate, which is used to block the fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged at the tail of the vortex, and the small circular plate is arranged at the bottom of the cyclone to block it so that the fine-grained spodumene concentrate, middlings and tailings products are squeezed and moved upward in advance, thereby preventing a small amount of fine-grained spodumene concentrate, middlings and tailings products that gradually approach the discharge port from being mixed with some heavy medium and thus being taken out of the discharge port together;

[0005] An overflow pipe is passed through and fixedly connected to the top of the cyclone tube, a discharge pipe is fixedly connected to the bottom of the cyclone tube, and a bent rod is fixedly connected to the outside of the cyclone tube;

[0006] The bottom of the overflow pipe is fixedly connected to the top of the pre-screen device, and one end of the bent rod away from the cyclone tube is fixedly connected to the outside of the material blocking device. Three bent rods are provided, and the three bent rods are evenly distributed on the outside of the material blocking device.

[0007] The bottom of the small circular plate is rotatably connected to a pushing mechanism through a rotating bolt, a fine material round hole is opened on the top of the small circular plate, and a corrugated thin strip is fixedly connected to the top of the small circular plate. The corrugated thin strip is used to stir and separate a large amount of heavy medium that moves downward in a spiral, so as to prevent a large amount of heavy medium from being concentrated and attached together, resulting in a small amount of fine-grained spodumene concentrate, middlings and tailings products being mixed in and taken out of the discharge pipe together. The bottom of the small circular plate is fixedly connected to an annular baffle. When the annular baffle is in friction contact with the heavy medium The fine-grained spodumene concentrate, middlings and tailings products on the surface of the heavy medium will be wiped off, so as to prevent a large amount of fine-grained spodumene concentrate, middlings and tailings products adhering to the surface of the heavy medium from being completely separated by centrifugal force. The outer side of the annular baffle is provided with an outer oblique circular hole, and a large amount of wiped-off fine-grained spodumene concentrate, middlings and tailings products are collected by opening a plurality of outer oblique circular holes, so as to prevent the fine-grained spodumene concentrate, middlings and tailings products that have moved down to the bottom of the cyclone tube from being difficult to move up to the overflow pipe;

[0008] The outer side of the pushing mechanism is fixedly connected to the end of the bent rod away from the vortex tube, a plurality of fine material circular holes are provided, and the plurality of fine material circular holes are evenly distributed on the top of the small circular plate, a plurality of corrugated thin strips are provided, and the plurality of corrugated thin strips are evenly distributed on the top of the small circular plate, and a plurality of outer oblique circular holes are provided, and the plurality of outer oblique circular holes are evenly distributed on the outer side of the annular baffle.

[0009] Furthermore, the pushing mechanism includes an inclined sleeve plate, the top of the inclined sleeve plate passes through and is rotatably connected with a thin round rod, the bottom of the thin round rod is fixedly connected with a driving shaft of a motor, and the outer side of the thin round rod is sleeved and fixedly connected with a spiral scraper, and the spiral rotation of the spiral scraper pushes the collected fine-grained spodumene concentrate, intermediate ore and tailings products to be continuously discharged into the cyclone tube, so as to prevent the fine-grained spodumene concentrate, intermediate ore and tailings products from filling the inside of the annular baffle and making it difficult for the external fine-grained spodumene concentrate, intermediate ore and tailings products to enter through the outer inclined circular hole, and the spiral scraper is used to scrape and clean the inner wall of the annular baffle at all times when rotating, so as to prevent the fine-grained spodumene concentrate, intermediate ore and tailings products in the annular baffle from drying up for a long time and being difficult to remove when the cyclone is not in use, and the outer side of the spiral scraper is fixedly connected with an arc-shaped barb, and the movement time of the arc-shaped barb is The inside of the outer oblique circular hole is intermittently punctured to prevent the fine-grained spodumene concentrate, middlings and tailings products remaining in the outer oblique circular hole from drying up and clogging the outer oblique circular hole when the cyclone is not in use; a long thorn rod is fixedly connected to the outer side of the inclined sleeve plate, and the tip of the long thorn rod pierces a large amount of heavy medium that moves downward and separates them from each other, preventing a large amount of heavy medium from being concentrated and squeezed and stuck between the annular baffle and the discharge pipe, causing blockage; the outer side of the inclined sleeve plate is fixedly connected to an end of the bent rod away from the cyclone tube, the top of the thin round rod is rotatably connected to the bottom of the small circular plate by a rotating bolt, the top of the inclined sleeve plate is fixedly connected to the bottom of the annular baffle, a plurality of the arc-shaped thorn bars are provided, and the plurality of the arc-shaped thorn bars are evenly distributed on the outside of the spiral scraper blade, and four long thorn rods are provided, and the four long thorn rods are evenly distributed on the outside of the inclined sleeve plate.

[0010] Furthermore, the pre-screening device comprises an outer oblique ring plate, the outer surface of which is arranged at the bottom of the overflow pipe and gradually tilts outward to expand its coverage range, so as to prevent a part of the fine-grained spodumene concentrate, middlings and tailings products that are squeezed and moved upward from being located outside the overflow pipe and being difficult to smoothly enter the overflow pipe. An inclined circular hole is provided on the outer side of the outer oblique ring plate, and a plurality of inclined circular holes are provided to pre-screen excess fine-grained spodumene concentrate, middlings and tailings products into the outer oblique ring plate, so as to prevent a large amount of fine materials from pouring into the bottom of the cyclone when the proportion of fine-grained spodumene concentrate, middlings and tailings products is large and the excess fine materials are discharged from the bottom. The bottom of the outer oblique ring plate is fixedly connected to a bottom circular plate, and a bottom circular hole is provided at the bottom of the bottom circular plate. The bottom circular hole provided at the bottom of the bottom circular plate facilitates the passage of fine-grained spodumene concentrate, middlings and tailings products and blocks the heavy medium, so as to prevent fine-grained spodumene from When the proportion of concentrate, middlings and tailings products is large, a small amount of heavy medium is wrapped inside and brought into the overflow pipe. The inner side of the outer oblique ring plate is fixedly connected with an annular arc plate. When the fine-grained spodumene concentrate, middlings and tailings products accumulate to a height exceeding the annular arc plate, they overflow to the center of the outer oblique ring plate to prevent the accumulation height of the fine-grained spodumene concentrate, middlings and tailings products on the annular arc plate from exceeding the inclined circular hole and blocking it, making it difficult for the fine-grained spodumene concentrate, middlings and tailings products on the outer side of the outer oblique ring plate to enter. The top of the outer oblique ring plate is fixedly connected to the bottom of the overflow pipe, a plurality of inclined circular holes are provided, and the plurality of inclined circular holes are evenly distributed on the outer side of the outer oblique ring plate, a plurality of bottom circular holes are provided, and the plurality of bottom circular holes are evenly distributed on the bottom of the bottom circular plate, and three annular arc plates are provided, and the three annular arc plates are evenly distributed on the inner side of the outer oblique ring plate.

[0011] The present invention has the beneficial effects:

[0012] 1. The present invention provides a small circular plate at the bottom of the cyclone to block it so that the fine-grained spodumene concentrate, middlings and tailings products are squeezed and moved upward in advance, thereby preventing a small amount of fine-grained spodumene concentrate, middlings and tailings products gradually approaching the discharge port from being mixed with some heavy media and thus being carried out of the discharge port together. The spiral rotation of the spiral scraper pushes the collected fine-grained spodumene concentrate, middlings and tailings products to be continuously discharged into the cyclone, thereby preventing the fine-grained spodumene concentrate, middlings and tailings products from filling the annular baffle and preventing the external fine-grained spodumene concentrate, middlings and tailings products from being difficult to enter through the outer oblique circular hole. By opening a plurality of oblique circular holes, the excess fine-grained spodumene concentrate, middlings and tailings products are pre-screened and entered into the outer oblique annular plate, thereby preventing the excess fine materials from being discharged from the bottom when a large amount of fine materials flow into the bottom of the cyclone when the proportion of fine-grained spodumene concentrate, middlings and tailings products is large.

[0013] 2. The present invention provides a material blocking device, and provides a small circular plate at the bottom of the cyclone to block it, so that the fine-grained spodumene concentrate, middlings and tailings products are squeezed and moved upward in advance, preventing a small amount of fine-grained spodumene concentrate, middlings and tailings products gradually approaching the discharge port from being mixed with some heavy media and thus being taken out of the discharge port together. The corrugated thin strips are used to stir and separate a large amount of heavy media moving downward in a spiral, preventing a large amount of heavy media from being concentrated and attached together, resulting in a small amount of fine-grained spodumene concentrate, middlings and tailings products being mixed in the discharge port. The inner medium is brought out of the discharge pipe together, and the fine-grained spodumene concentrate, middlings and tailings products on the surface of the heavy medium will be wiped off when the annular baffle plate contacts the heavy medium by friction, preventing a large amount of fine-grained spodumene concentrate, middlings and tailings products adhering to the surface of the heavy medium from being difficult to be completely separated by centrifugal force. A large amount of wiped-off fine-grained spodumene concentrate, middlings and tailings products are collected by opening a plurality of outer oblique circular holes, preventing the fine-grained spodumene concentrate, middlings and tailings products that have moved down to the bottom of the cyclone tube from being difficult to move up to the overflow pipe.

[0014] 3. The present invention provides a pushing mechanism, and the spiral rotation of the spiral scraper pushes the collected fine-grained spodumene concentrate, middlings and tailings products to be continuously discharged into the cyclone tube, so as to prevent the fine-grained spodumene concentrate, middlings and tailings products from filling the inside of the annular baffle while the fine-grained spodumene concentrate, middlings and tailings products outside from being difficult to enter through the outer oblique circular hole. The spiral scraper scrapes and cleans the inner wall of the annular baffle at all times when rotating, so as to prevent the fine-grained spodumene concentrate, middlings and tailings products in the annular baffle from drying up for a long time and being difficult to remove when the cyclone is not used. The arc-shaped barb intermittently punctures the inside of the outer oblique circular hole when moving, so as to prevent the fine-grained spodumene concentrate, middlings and tailings products remaining in the outer oblique circular hole from drying up and clogging the outer oblique circular hole when the cyclone is not used. The tip of the long barb pierces a large amount of heavy medium that moves downward and separates them from each other, so as to prevent a large amount of heavy medium from being concentrated and poured into the annular baffle and being squeezed and stuck between the discharge pipe to cause blockage.

[0015] 4. The present invention provides a pre-screening device. The outer surface of the outer oblique ring plate provided at the bottom of the overflow pipe gradually tilts outward to expand its coverage range, thereby preventing a part of the fine-grained spodumene concentrate, middlings and tailings products that are squeezed and moved upward from being located outside the overflow pipe and being difficult to smoothly enter the overflow pipe. By opening a plurality of oblique circular holes, the excess fine-grained spodumene concentrate, middlings and tailings products are pre-screened into the outer oblique ring plate, thereby preventing a large amount of fine materials from pouring into the bottom of the cyclone when the proportion of fine-grained spodumene concentrate, middlings and tailings products is large and the excess fine materials are discharged from the bottom. When the pyroxene concentrate, middlings and tailings products accumulate to a height exceeding the annular arc plate, they overflow to the center of the outer inclined annular plate to prevent the fine-grained spodumene concentrate, middlings and tailings products on the annular arc plate from accumulating to a height exceeding the inclined circular hole and blocking it, making it difficult for the fine-grained spodumene concentrate, middlings and tailings products on the outside of the outer inclined annular plate to enter. The bottom circular hole facilitates the passage of fine-grained spodumene concentrate, middlings and tailings products and blocks the heavy medium, preventing a small amount of heavy medium from being wrapped inside and brought into the overflow pipe when the proportion of fine-grained spodumene concentrate, middlings and tailings products is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the three-product heavy medium cyclone of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the three-product heavy medium cyclone of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the material blocking device of the present invention;

[0019] Figure 4 It is a schematic diagram of the partial structure of the material blocking device of the present invention;

[0020] Figure 5 It is a schematic diagram of the side section structure of the pusher mechanism of the present invention;

[0021] Figure 6 This is an enlarged structural schematic diagram of the side section A of the material pushing mechanism of the present invention;

[0022] Figure 7 This is a schematic diagram of the bottom structure of the pre-screening device of the present invention;

[0023] Figure 8 This is a schematic diagram of the internal structure of the pre-screening device of the present invention;

[0024] In the figure: 1, swirl tube; 2, feed pipe; 3, material blocking device; 4, pre-screening device; 5, overflow pipe; 6, discharge pipe; 7, bent rod; 301, small round plate; 302, material pushing mechanism; 303, fine material round hole; 304, corrugated thin strip; 305, annular baffle; 306, outer oblique round hole; 3021, inclined sleeve plate; 3022, thin round rod; 3023, motor; 3024, spiral scraper; 3025, arc-shaped barbed strip; 3026, long barbed rod; 401, outer oblique ring plate; 402, inclined round hole; 403, bottom round plate; 404, bottom round hole; 405, annular arc plate. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0026] For the first embodiment, please refer to Figure 1-Figure 6 The present invention is a three-product heavy medium cyclone for spodumene ore separation, comprising:

[0027] A cyclone tube 1 is used to separate heavy medium from fine-grained spodumene concentrate, middlings and tailings products by vortex separation, and a feed pipe 2 is arranged on the outside of the cyclone tube 1;

[0028] The material blocking device 3 is used to block the fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged from the tail of the vortex;

[0029] A pre-screening device 4, which is used for preliminary screening of heavy medium and fine-grained spodumene concentrate, middlings and tailings products;

[0030] The outer side of the cyclone tube 1 is connected to one side of the feed pipe 2;

[0031] Wherein, the material blocking device 3 comprises:

[0032] A small circular plate 301, which is used to block the fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged at the tail of the vortex;

[0033] An overflow pipe 5 is passed through and fixedly connected to the top of the cyclone tube 1, a discharge pipe 6 is fixedly connected to the bottom of the cyclone tube 1, and a bent rod 7 is fixedly connected to the outside of the cyclone tube 1;

[0034] The bottom of the overflow pipe 5 is fixedly connected to the top of the pre-screen device 4, and one end of the bent rod 7 away from the cyclone tube 1 is fixedly connected to the outside of the material blocking device 3. Three bent rods 7 are provided, and the three bent rods 7 are evenly distributed on the outside of the material blocking device 3.

[0035] The bottom of the small circular plate 301 is rotatably connected to a material pushing mechanism 302 through a rotating bolt, a circular hole 303 for fine materials is opened on the top of the small circular plate 301, a corrugated thin strip 304 is fixedly connected to the top of the small circular plate 301, and an annular baffle 305 is fixedly connected to the bottom of the small circular plate 301, and an outer oblique circular hole 306 is opened on the outer side of the annular baffle 305;

[0036] The outer side of the pushing mechanism 302 is fixedly connected to the end of the bent rod 7 away from the cyclone tube 1, a plurality of fine material circular holes 303 are provided, and the plurality of fine material circular holes 303 are evenly distributed on the top of the small circular plate 301, a plurality of corrugated thin strips 304 are provided, and the plurality of corrugated thin strips 304 are evenly distributed on the top of the small circular plate 301, and a plurality of outer oblique circular holes 306 are provided, and the plurality of outer oblique circular holes 306 are evenly distributed on the outer side of the annular baffle 305;

[0037] The pushing mechanism 302 includes an inclined sleeve 3021, the top of the inclined sleeve 3021 penetrates and is rotatably connected with a thin round rod 3022, the bottom of the thin round rod 3022 is fixedly connected to the driving shaft of the motor 3023, the outer side of the thin round rod 3022 is sleeved and fixedly connected with a spiral scraper 3024, the outer side of the spiral scraper 3024 is fixedly connected with an arc-shaped barb 3025, the outer side of the inclined sleeve 3021 is fixedly connected with a long barb 3026, the outer side of the inclined sleeve 3021 is fixedly connected to the end of the bent rod 7 away from the cyclone 1, the top of the thin round rod 3022 is rotatably connected to the bottom of the small circular plate 301 through a rotating bolt, the top of the inclined sleeve 3021 is fixedly connected to the bottom of the annular baffle 305, and the arc-shaped bar 3026 is fixedly connected to the outer side of the inclined sleeve 3021. 025 is provided with multiple arc-shaped barbed bars 3025, and the multiple arc-shaped barbed bars 3025 are evenly distributed on the outside of the spiral scraping blade 3024. Four long barbed bars 3026 are provided, and the four long barbed bars 3026 are evenly distributed on the outside of the inclined sleeve plate 3021. When in use, the heavy medium and the fine-grained spodumene concentrate, the middling ore and the tailings products are injected into the cyclone tube 1 through the feed pipe 2. After the heavy medium and the fine-grained spodumene concentrate, the middling ore and the tailings products enter the cyclone tube 1, they are spirally moved down along the inner wall of the cyclone tube 1. When the heavy medium and the fine-grained spodumene concentrate, the middling ore and the tailings products are spirally moved down along the inner wall of the cyclone tube 1, the centrifugal force will separate the heavy medium from the fine-grained spodumene concentrate, the middling ore and the tailings products, and the separated heavy medium is quickly spirally moved against the inner wall of the cyclone tube 1. The spodumene concentrate, middlings and tailings products move downward rapidly, and the fine-grained spodumene concentrate, middlings and tailings products are continuously squeezed toward the center of the cyclone tube 1 by the heavy medium as they spiral downward. When the proportion of fine-grained spodumene concentrate, middlings and tailings products is relatively large, a portion of the fine-grained spodumene concentrate, middlings and tailings products close to the center of the cyclone tube 1 will contact the pre-screening device 4 and be squeezed into the pre-screening device 4 until they are close to the discharge pipe 6 at the bottom of the cyclone tube 1. Under the blocking cooperation of the material blocking device 3, they are gradually squeezed upward at the center of the cyclone tube 1 to the bottom of the pre-screening device 4 and pass through the pre-screening device 4 into the overflow pipe 5, and enter the sewage treatment process from the overflow pipe 5. When the heavy medium spirally moves downward rapidly to the bottom of the cyclone tube 1, it will fall downward between the discharge pipe 6 and the material blocking device 3 and be discharged. When the pyroxene concentrate, middlings and tailings products spirally move down to the bottom of the cyclone tube 1, they are blocked by the small circular plate 301 and begin to be gradually squeezed and move upward. By setting the small circular plate 301 at the bottom of the cyclone tube 1 to block them, the fine-grained spodumene concentrate, middlings and tailings products are squeezed and moved upward in advance. When a large amount of heavy medium spirally moving down is close to the small circular plate 301, it will contact the corrugated thin strips 304. The corrugated thin strips 304 will stir and separate the large amount of heavy medium spirally moving down. When the heavy medium spirally moves down and is pushed between the discharge pipe 6 and the annular baffle 305, it will frictionally contact with the outer side surface of the annular baffle 305. When the annular baffle 305 frictionally contacts with the heavy medium, the fine-grained spodumene concentrate, middlings and tailings products on the surface of the heavy medium will be wiped off.The erased fine-grained spodumene concentrate, middlings and tailings products are pushed into the outer oblique circular hole 306 together with the spiral downward movement of the heavy medium and pass through the outer oblique circular hole 306 to enter the pushing mechanism 302 inside the annular baffle 305. A large amount of erased fine-grained spodumene concentrate, middlings and tailings products are collected by opening a plurality of outer oblique circular holes 306. When a certain amount of fine-grained spodumene concentrate, middlings and tailings products are collected in the annular baffle 305, the collected fine-grained spodumene concentrate, middlings and tailings products are pushed into the annular baffle 305 by the pushing mechanism 302. The fine spodumene concentrate, middlings and tailings products are pushed upward in a spiral manner and pass through the fine material round hole 303 of the small circular plate 301 and enter the center of the cyclone tube 1 above the small circular plate 301. The fine spodumene concentrate, middlings and tailings products are moved upward together with a large amount of squeezed fine spodumene concentrate, middlings and tailings products. The fine spodumene concentrate, middlings and tailings products enter the annular baffle 305 through the outer oblique round hole 306 and fall on the spiral scraper blade 3024. The motor 3023 is started to drive the thin round rod 3022 on the top to rotate. The rotation of the thin round rod 3022 drives the outer spiral scraper blade 3024 to rotate. The spiral scraper When the blade 3024 rotates, it drives the fine-grained spodumene concentrate, middlings and tailings collected on the outside to move upward in a spiral to the bottom of the small circular plate 301 and pass through the fine material circular hole 303 to enter the center of the cyclone tube 1 at the top. The spiral rotation of the spiral scraping blade 3024 pushes the collected fine-grained spodumene concentrate, middlings and tailings products to be continuously discharged into the cyclone tube 1. When the spiral scraping blade 3024 rotates, it is in contact with the inner wall of the annular baffle 305 at all times, and the spiral scraping blade 3024 is constantly scraping and cleaning the inner wall of the annular baffle 305 at all times. When the spiral scraper blade 3024 rotates, it drives the outer arc-shaped barbed strip 3025 to move together. When the arc-shaped barbed strip 3025 moves, it intermittently punctures the inside of the outer oblique circular hole 306. At the same time, the heavy medium entering the discharge pipe 6 contacts the long barbed rod 3026 on the inclined sleeve 3021 when the spiral moves downward. The tip of the long barbed rod 3026 punctures a large amount of heavy medium moving downward and separates them from each other. The heavy medium discharged from the discharge pipe 6 falls on the inclined sleeve 3021 and slides outward along the inclined surface of the inclined sleeve 3021.

[0038] For the second embodiment, please refer to Figure 1-Figure 8The present invention provides a three-product heavy medium cyclone for separating spodumene ore: the pre-screen device 4 comprises an outer oblique ring plate 401, an outer side of the outer oblique ring plate 401 is provided with an inclined circular hole 402, a bottom circular plate 403 is fixedly connected to the bottom of the outer oblique ring plate 401, a bottom circular hole 404 is opened at the bottom of the bottom circular plate 403, an annular arc plate 405 is fixedly connected to the inner side of the outer oblique ring plate 401, the top of the outer oblique ring plate 401 is fixedly connected to the bottom of the overflow pipe 5, a plurality of inclined circular holes 402 are provided, and the plurality of inclined circular holes 402 are evenly distributed on the outer oblique ring plate 401. On the outside of the oblique ring plate 401, a plurality of bottom circular holes 404 are provided, and the plurality of bottom circular holes 404 are evenly distributed on the bottom of the bottom circular plate 403, and three annular arc plates 405 are provided, and the three annular arc plates 405 are evenly distributed on the inside of the outer oblique ring plate 401. When in use, when the proportion of fine-grained spodumene concentrate, middlings and tailings products is large, a portion of the fine-grained spodumene concentrate, middlings and tailings products that spiral downward near the center of the cyclone 1 will contact the outer oblique ring plate 401 and spiral downward along the surface of the outer oblique ring plate 401, and the outer oblique ring plate 401 disposed at the bottom of the overflow pipe 5 The outer surface of the oblique ring plate 401 gradually tilts outward to expand its coverage area. When the fine-grained spodumene concentrate, middlings and tailings products move downward along the surface of the outer oblique ring plate 401 in a spiral, they will successively pass through the oblique circular holes 402 to enter the inner part of the outer oblique ring plate 401 and fall on the annular arc plate 405. By opening a plurality of oblique circular holes 402, the excess fine-grained spodumene concentrate, middlings and tailings products are pre-screened into the outer oblique ring plate 401. The fine-grained spodumene concentrate, middlings and tailings products that enter the inner side of the outer oblique ring plate 401 are gradually accumulated on the annular arc plate 405. When the fine-grained spodumene concentrate, middlings and tailings products accumulate to a height exceeding the annular arc plate 405, they overflow from the center of the outer oblique annular plate 401, and move upward together with a large amount of fine-grained spodumene concentrate, middlings and tailings products that are squeezed and moved upward to the overflow pipe 5. The inner diameter of the annular arc plate 405 is set to be the same as the radius covered when the fine-grained spodumene concentrate, middlings and tailings products are squeezed and moved upward. The bottom circular hole 404 opened at the bottom of the bottom circular plate 403 facilitates the passage of fine-grained spodumene concentrate, middlings and tailings products and blocks the heavy medium.

[0039] When the present invention is operated and used, heavy medium and fine-grained spodumene concentrate, middlings and tailings products are injected into the cyclone tube 1 through the feed pipe 2. After entering the cyclone tube 1, the heavy medium and fine-grained spodumene concentrate, middlings and tailings products move downward in a spiral along the inner wall of the cyclone tube 1. When the heavy medium and fine-grained spodumene concentrate, middlings and tailings products move downward in a spiral along the inner wall of the cyclone tube 1, the heavy medium is separated from the fine-grained spodumene concentrate, middlings and tailings products by the centrifugal force. The separated heavy medium moves downward in a spiral close to the inner wall of the cyclone tube 1, and the fine-grained spodumene concentrate, middlings and tailings products are continuously squeezed toward the center of the cyclone tube 1 by the heavy medium when they move downward in a spiral. When the proportion of fine-grained spodumene concentrate, middlings and tailings products is relatively large, a part of the heavy medium near the center of the cyclone tube 1 is squeezed toward the center of the cyclone tube 1. The fine-grained spodumene concentrate, middlings and tailings products will contact the pre-screening device 4 and be squeezed into the pre-screening device 4 until they are close to the discharge pipe 6 at the bottom of the cyclone 1. Under the blocking cooperation of the blocking device 3, they are gradually squeezed upward to the bottom of the pre-screening device 4 at the center of the cyclone 1 and pass through the pre-screening device 4 into the overflow pipe 5, and enter the sewage treatment process from the overflow pipe 5. When the heavy medium quickly spirals down to the bottom of the cyclone 1, it will fall downward between the discharge pipe 6 and the blocking device 3 and be discharged. When the fine-grained spodumene concentrate, middlings and tailings products spiral down to the bottom of the cyclone 1, they are blocked by the small circular plate 301 and begin to be gradually squeezed and move upward. By setting the small circular plate 301 at the bottom of the cyclone 1 to block them, the fine-grained spodumene concentrate, middlings and tailings products are The large amount of heavy medium that is squeezed and moved upward in advance and spirally moves downward will contact the corrugated thin strips 304 when it approaches the small circular plate 301. The corrugated thin strips 304 will toggle and separate the large amount of heavy medium that is spirally moved downward. When the heavy medium spirally moves downward and is pushed between the discharge pipe 6 and the annular baffle 305, it will frictionally contact with the outer side surface of the annular baffle 305. When the annular baffle 305 frictionally contacts with the heavy medium, the fine-grained spodumene concentrate, middlings and tailings products on the surface of the heavy medium will be wiped off. The wiped fine-grained spodumene concentrate, middlings and tailings products are pushed into the outer oblique circular hole 306 together with the spiral downward movement of the heavy medium and pass through the outer oblique circular hole 306 to enter the pushing mechanism 302 inside the annular baffle 305. A large amount of heavy medium that is spirally moved downward can be collected by opening a plurality of outer oblique circular holes 306. The fine-grained spodumene concentrate, middlings and tailings products that are erased, when a certain amount of fine-grained spodumene concentrate, middlings and tailings products are collected in the annular baffle 305, the collected fine-grained spodumene concentrate, middlings and tailings products are pushed upward in a spiral manner through the pushing mechanism 302 and pass through the fine material circular hole 303 of the small circular plate 301 to enter the center position of the cyclone tube 1 above the small circular plate 301. The fine-grained spodumene concentrate, middlings and tailings products move upward together with a large amount of squeezed fine-grained spodumene concentrate, middlings and tailings products, and enter the annular baffle 305 through the outer oblique circular hole 306. The fine-grained spodumene concentrate, middlings and tailings products fall on the spiral scraper blade 3024, and the motor 3023 is started to drive the thin round rod 3022 on the top to rotate, and the rotation of the thin round rod 3022 drives the outer spiral scraper blade 3024 to rotate.When the spiral scraper blade 3024 rotates, it drives the fine-grained spodumene concentrate, middlings and tailings collected on the outside to move upward in a spiral to the bottom of the small circular plate 301 and pass through the fine material circular hole 303 to enter the center of the cyclone tube 1 at the top. The spiral rotation of the spiral scraper blade 3024 pushes the collected fine-grained spodumene concentrate, middlings and tailings products to be continuously discharged into the cyclone tube 1. When the spiral scraper blade 3024 rotates, it is in contact with the inner wall of the annular baffle 305 at all times. When the spiral scraper blade 3024 rotates, it scrapes and cleans the inner wall of the annular baffle 305 at all times. When the spiral scraper blade 3024 rotates, it drives the outer arc-shaped barbed strips 3025 The arc-shaped barbed strip 3025 intermittently punctures the inside of the outer oblique circular hole 306 when it moves. At the same time, the heavy medium entering the discharge pipe 6 contacts the long barbed rod 3026 on the inclined sleeve 3021 when the spiral moves downward. The tip of the long barbed rod 3026 punctures a large amount of heavy medium moving downward and separates them from each other. The heavy medium discharged from the discharge pipe 6 falls on the inclined sleeve 3021 and slides outward along the inclined surface of the inclined sleeve 3021. When the proportion of fine-grained spodumene concentrate, middlings and tailings products is large, a part of the fine-grained spodumene concentrate, middlings and tailings that move downward spirally near the center of the cyclone tube 1 The mineral products will contact the outer oblique ring plate 401 and move downward in a spiral along the surface of the outer oblique ring plate 401. The outer surface of the outer oblique ring plate 401 arranged at the bottom of the overflow pipe 5 gradually tilts outward to expand its coverage area. The fine-grained spodumene concentrate, middlings and tailings products will successively pass through the inclined circular holes 402 into the inner part of the outer oblique ring plate 401 and fall on the annular arc plate 405 when they move downward in a spiral along the surface of the outer oblique ring plate 401. By opening a plurality of inclined circular holes 402, the excess fine-grained spodumene concentrate, middlings and tailings products are pre-screened into the outer oblique ring plate 401, and the fine-grained spodumene concentrate entering the inner side of the outer oblique ring plate 401 is , middlings and tailings products gradually accumulate on the annular arc plate 405. When the fine-grained spodumene concentrate, middlings and tailings products accumulate to a height exceeding the annular arc plate 405, they overflow from the center of the outer oblique annular plate 401 and move upward with a large amount of fine-grained spodumene concentrate, middlings and tailings products that are squeezed upward to the overflow pipe 5. The inner diameter of the annular arc plate 405 is set to be the same as the radius covered by the fine-grained spodumene concentrate, middlings and tailings products when they are squeezed upward. The bottom circular hole 404 opened at the bottom of the bottom circular plate 403 facilitates the passage of fine-grained spodumene concentrate, middlings and tailings products and blocks the heavy medium.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A three-product heavy medium cyclone for spodumene ore separation, characterized in that: include: A cyclone tube (1) is used to separate a heavy medium from fine-grained spodumene concentrate, middlings and tailings products by vortex separation. The outer side of the cyclone tube (1) is provided with a feed pipe (2); a material blocking device (3) is used to block the fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged at the tail of the vortex; a pre-screening device (4) is used to perform preliminary screening treatment on the heavy medium and the fine-grained spodumene concentrate, middlings and tailings products; the outer side of the cyclone tube (1) is connected to one side of the feed pipe (2); wherein the material blocking device (3) comprises: a small circular plate (301) is used to block the fine-grained spodumene concentrate, middlings and tailings products that are about to be discharged at the tail of the vortex; the bottom of the small circular plate (301) is rotatably connected to a pushing mechanism (302) via a rotating bolt; the small circular plate (301) is connected to the bottom of the small circular plate (301 ... A fine material circular hole (303) is provided at the top of the plate (301), a corrugated thin strip (304) is fixedly connected to the top of the small circular plate (301), an annular baffle (305) is fixedly connected to the bottom of the small circular plate (301), an outer oblique circular hole (306) is provided on the outer side of the annular baffle (305), and the pushing mechanism (302) comprises an inclined sleeve plate (3021), a thin round rod (3022) is passed through and rotatably connected to the top of the inclined sleeve plate (3021), a driving shaft of a motor (3023) is fixedly connected to the bottom of the thin round rod (3022), a spiral scraping blade (3024) is sleeved and fixedly connected to the outer side of the thin round rod (3022), an arc-shaped thorn strip (3025) is fixedly connected to the outer side of the spiral scraping blade (3024), and a long thorn rod (3026) is fixedly connected to the outer side of the inclined sleeve plate (3021).

2. The three-product heavy medium cyclone for separation of spodumene ore according to claim 1, characterized in that: An overflow pipe (5) penetrates and is fixedly connected to the top of the cyclone tube (1), a discharge pipe (6) is fixedly connected to the bottom of the cyclone tube (1), and a bent rod (7) is fixedly connected to the outside of the cyclone tube (1).

3. The three-product heavy medium cyclone for separation of spodumene ore according to claim 2, characterized in that: The bottom of the overflow pipe (5) is fixedly connected to the top of the pre-screen device (4), and one end of the bent rod (7) away from the cyclone tube (1) is fixedly connected to the outside of the material blocking device (3). Three bent rods (7) are provided, and the three bent rods (7) are evenly distributed on the outside of the material blocking device (3).

4. The three-product heavy medium cyclone for separation of spodumene ore according to claim 1, characterized in that: The outer side of the pushing mechanism (302) is fixedly connected to an end of the bent rod (7) away from the cyclone tube (1); a plurality of fine material circular holes (303) are provided, and the plurality of fine material circular holes (303) are evenly distributed on the top of the small circular plate (301); a plurality of corrugated thin strips (304) are provided, and the plurality of corrugated thin strips (304) are evenly distributed on the top of the small circular plate (301); a plurality of external oblique circular holes (306) are provided, and the plurality of external oblique circular holes (306) are evenly distributed on the outer side of the annular baffle (305).

5. The three-product heavy medium cyclone for separation of spodumene ore according to claim 4, characterized in that: The outer side of the inclined sleeve plate (3021) is fixedly connected to an end of the bent rod (7) away from the cyclone tube (1), the top of the thin round rod (3022) is rotatably connected to the bottom of the small round plate (301) via a rotating bolt, and the top of the inclined sleeve plate (3021) is fixedly connected to the bottom of the annular baffle (305).

6. The three-product heavy medium cyclone for separation of spodumene ore according to claim 1, characterized in that: A plurality of the arc-shaped thorn bars (3025) are provided, and the plurality of the arc-shaped thorn bars (3025) are evenly distributed on the outside of the spiral scraper blade (3024); four long thorn bars (3026) are provided, and the four long thorn bars (3026) are evenly distributed on the outside of the inclined sleeve plate (3021).

7. The three-product heavy medium cyclone for separation of spodumene ore according to claim 1, characterized in that: The pre-screening device (4) comprises an outer oblique ring plate (401), an outer side of the outer oblique ring plate (401) is provided with an inclined circular hole (402), a bottom circular plate (403) is fixedly connected to the bottom of the outer oblique ring plate (401), a bottom circular hole (404) is opened at the bottom of the bottom circular plate (403), and an annular arc plate (405) is fixedly connected to the inner side of the outer oblique ring plate (401).

8. The three-product heavy medium cyclone for separation of spodumene ore according to claim 7, characterized in that: The top of the outer oblique ring plate (401) is fixedly connected to the bottom of the overflow pipe (5); a plurality of the oblique circular holes (402) are provided, and the plurality of the oblique circular holes (402) are evenly distributed on the outside of the outer oblique ring plate (401); a plurality of the bottom circular holes (404) are provided, and the plurality of the bottom circular holes (404) are evenly distributed on the bottom of the bottom circular plate (403); and three annular arc plates (405) are provided, and the three annular arc plates (405) are evenly distributed on the inside of the outer oblique ring plate (401).

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