Device for improving dehydration performance of fine tailing slime

Abstract

The utility model relates to the technical field of tailing slime dehydration, in particular to a device for improving the dehydration performance of fine tailing slime, which comprises a dehydration mechanism, a moving mechanism mounted on the dehydration mechanism, a cleaning mechanism mounted on the moving mechanism, a pushing mechanism mounted on the moving mechanism, an air blowing mechanism mounted on the cleaning mechanism, and a discharging mechanism mounted on the air blowing mechanism. A collecting mechanism is mounted at the bottom of the dewatering mechanism, and a filtering mechanism is mounted on the collecting mechanism; the dewatering mechanism facilitates efficient dewatering work on tailing slime, the moving mechanism and the cleaning mechanism are matched to facilitate shoveling and cleaning filter cakes generated by the dewatering mechanism, and the pushing mechanism is matched to facilitate the moving mechanism to push a filter plate, so that better automatic cleaning work is realized; the blowing mechanism is beneficial to blowing away attached chippings during cleaning of the cleaning mechanism, and the collecting mechanism and the filtering mechanism are beneficial to classified collection and storage of falling filter cakes and water.

Description

Technical Field

[0001] The utility model relates to the technical field of tail coal slime dehydration, in particular to a device for improving the dehydration performance of fine tail coal slime. Background Art

[0002] Coal continues to play an important role in national economic and social development. With the increasing mechanization of coal mining, the proportion of fine coal slime in the raw coal continues to increase, now accounting for approximately 25% to 30% of the raw coal.

[0003] Currently, the mainstream process for treating coal sludge water involves concentrating the tailings after flotation in a concentrator. The concentrated tailings then enter a filter press, with the filtrate returned directly to the circulating water tank for use as circulating water. Due to the small particle size and large specific surface area of ​​the coal sludge, especially the high clay content in the tailings after flotation, dewatering the sludge becomes even more difficult. Furthermore, the addition of commonly used flocculants results in high hydrophilicity on the mineral surface and poor permeability in the filter cake. This results in high moisture content in the tailings, creating storage and transportation issues and increasing water replenishment at the coal preparation plant, impacting production. Dewatering the tailings primarily involves increasing the pressing pressure and time to further reduce the filter cake moisture content. Increasing the pressing pressure increases energy consumption, significantly increasing production costs; increasing the pressing time reduces equipment throughput, impacting the coal preparation plant's processing capacity. Therefore, it is crucial to further reduce the moisture content of the coal sludge filter cake without changing existing process conditions. Moreover, the filter cake produced by the current filter press is rather troublesome to clean, and the moisture generated during compression and the filter cake are not easily separated and stored, thus affecting subsequent recycling and processing. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a device for improving the dehydration performance of fine tailing coal slime.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a device for improving the dehydration performance of fine tail coal slime, comprising a dehydration mechanism, a moving mechanism installed on the dehydration mechanism, a cleaning mechanism installed on the moving mechanism, a pushing mechanism installed on the moving mechanism, an air blowing mechanism installed on the cleaning mechanism, a collecting mechanism installed at the bottom of the dehydration mechanism, and a filtering mechanism installed on the collecting mechanism.

[0006] Specifically, the dehydration mechanism includes a flotation machine, one end of the flotation machine is connected to a concentrator, one end of the concentrator is connected to a stirring barrel, one side of the stirring barrel is connected to a steam generator, the bottom of the stirring barrel is connected to a filter press, the bottom of the concentrator is connected to a circulation pool, one end of the filter press is connected to the circulation pool through a pipeline, and a plurality of stacked filter plates are slidably connected to the filter press.

[0007] Specifically, the moving mechanism includes a mounting frame, which is installed on the filter press. The mounting frame is an "N"-shaped structure. The two ends of the bottom of the mounting frame are slidably connected to the side walls of the filter press through sliders and guide rails. Stepper motors are respectively installed at the two ends of the bottom of the mounting frame. Gears are installed on the output shaft of the stepper motor. Racks are installed on both sides of the filter press, and the gears are engaged with the racks.

[0008] Specifically, the cleaning mechanism includes a driving cylinder, two driving cylinders are installed on the top of the mounting frame, and a mounting block is slidably connected to the bottom of the mounting frame. The output shafts at the bottom of the two driving cylinders are detachably connected to the top of the mounting block, and symmetrically distributed scrapers are installed on both sides of the mounting block. The scraper is an arc-shaped structure, and one side of the scraper is a wavy structure.

[0009] Specifically, there are card slots on both sides of the mounting block, and connecting blocks are slidably connected to the two card slots. The card slots and one side of the connecting block are both "convex" shaped structures, and the two groups of scrapers are respectively fixedly connected vertically to one side of the two connecting blocks.

[0010] Specifically, the pushing mechanism includes a control cylinder, which is installed on both sides of the mounting frame respectively, and a push block is installed on the output shaft of the control cylinder. The push block is an "L"-shaped structure, and the push block is slidingly connected to one side of the mounting frame through the control cylinder. A clamping block is installed inside one end of the push block, and the clamping block is a trapezoidal structure. The clamping block is slidingly connected to the inside of the push block through a resistance spring, and one end of the clamping block extends to the outside of the push block, and one end of the clamping block is in contact with the side wall of the filter press.

[0011] Specifically, the blowing mechanism includes an air inlet pipe, which is slidably connected to the center of the mounting frame. The bottom of the air inlet pipe is connected to the inner side of the top of the mounting block. The bottom of the mounting block is a trapezoidal structure. Multiple equidistantly distributed nozzles are installed on both sides of the bottom of the mounting block, and the ends of multiple nozzles extend into the interior of the mounting block and are connected to the air inlet pipe.

[0012] Specifically, the collecting mechanism includes a collecting box. Two collecting boxes are installed at the bottom of the filter press. A plurality of universal wheels are respectively installed at the bottom of the two collecting boxes.

[0013] Specifically, a drainage pipe is installed on one side of each of the two collecting boxes, and the drainage pipe is connected to the circulation pool. Two handles are installed on both sides of each of the two collecting boxes.

[0014] Specifically, the filtering mechanism includes a fixed frame, the fixed frame is installed inside the two collecting boxes, and a filter screen is provided on the top side of the two collecting boxes, and the bottom edge of the filter screen is in conflict with the fixed frame.

[0015] Specifically, two locking grooves are respectively provided on the top sides of both ends of the fixing frame, and buckles are fixedly connected to both ends of the filter screen. The locking grooves and the buckles are both "convex" shaped structures, and the buckles are engaged with the inside of the locking grooves.

[0016] The beneficial effects of the utility model are:

[0017] (1) The utility model discloses a device for improving the dewatering performance of fine tail coal slime, which is conducive to the efficient dewatering of tail coal slime by installing a dewatering mechanism, so that the moisture content of tail coal slime is less than 20%, that is: the tail coal slime water after flotation by the flotation machine is added with filter aids and thermosensitive polymers and then enters the concentrator, the overflow of the concentrator enters the circulating water pool, the bottom flow enters the stirring barrel of the filter press workshop, and a hot steam generating device is introduced into the stirring barrel. Under the condition that the temperature in the stirring barrel is higher than the turbidity temperature of the thermosensitive polymer, the slurry is fed into the filter press by a pump, and the dewatering work is achieved through the cooperation of multiple filter plates. The filtrate squeezed by the filter press enters the circulating water pool, and the filter cake is cleaned and sold as tail coal slime. On the basis of ensuring the existing process of the coal preparation plant, the effect of significantly reducing the moisture content of tail coal slime can be achieved, and the moisture content of tail coal slime is less than 20%.

[0018] (2) The utility model discloses a device for improving the dewatering performance of fine tail coal slime, which is conducive to scraping and cleaning the filter cake produced by the dewatering mechanism equipment through the cooperation of the moving mechanism and the cleaning mechanism, and the operation is more convenient and quick, that is: through the installation of the guide rail and the slider, the mounting frame and the filter press can slide freely, through the operation of the stepping motor, the gear and the rack are rolled, which is conducive to the drive control of the mounting frame, and the certain position control of the mounting frame is realized, which is convenient for removing the filter cake, through the installation of the driving cylinder, it is convenient to connect the mounting block, through the installation of the mounting block, it is convenient to install two sets of symmetrical scrapers, through the operation of the driving cylinder, the mounting block drives the scraper to slide down, which is conducive to scraping the filter cake on the opposite sides of the two filter plates, and when the driving cylinder rises, the scraper can scrape upward again, so that the filter cake is cleaned more cleanly, through the opening of the card slot, it is convenient to detachably install the connecting block, and through the installation of the connecting block, it is convenient to fix the scraper, thereby facilitating the subsequent disassembly and assembly of the connecting block, and then the maintenance of the scraper.

[0019] (3) The utility model discloses a device for improving the dewatering performance of fine tail coal slime, which is conducive to the mobile mechanism pulling the filter screen in the dewatering equipment through the cooperation of the pushing mechanism, thereby realizing better automatic cleaning work, that is: by controlling the installation of the cylinder, it is conducive to the connection of the push block, and the block is extended to the outside of the push block by the resistance of the resistance spring. By controlling the operation of the cylinder, the push block slides on one side of the filter press, and the block contacts and contracts with the filter plate on the side wall of the filter press, so that the block can slide to one side of the filter plate, and the block is reset under the elastic force of the resistance spring, realizing the contact between the block and the side wall of the filter plate. By controlling the contraction of the cylinder, the push block is reset in the opposite direction, which is conducive to pulling the filter plate to a certain position, making it convenient for the scraper to scrape and clean the other side of the filter plate, and so on, realizing the cleaning work on both sides of the filter plate.

[0020] (4) The device for improving the dehydration performance of fine tail coal slime described in the present invention is conducive to blowing away the attached debris when the cleaning mechanism is cleaning through the installation of the blowing mechanism, so as to achieve better cleaning effect. That is: through the installation of the air inlet pipe, it is conducive to connection with the external air pipe. The external gas enters the interior of the installation block through the air inlet pipe and is sprayed out through multiple nozzles, which is conducive to the gas spraying and flushing when cleaning the filter plate, so that the attached debris can be well washed away.

[0021] (5) The utility model discloses a device for improving the dewatering performance of fine tail coal slime, which is conducive to the classification, collection and storage of fallen filter cakes and squeezed water through the cooperation of the collecting mechanism and the filtering mechanism, and at the same time the stored water is exported and recycled, that is: through the installation of the collecting box, it is convenient to receive and store the cleaned filter cakes; through the installation of the universal wheel, it is convenient to pull out and move the collecting box, and it is convenient to transfer and process the collected debris; through the installation of the handle, it is convenient to pull and control the collecting box, and realize the transportation and cleaning of the collecting box; through the installation of the drain pipe, it is convenient to collect and export the residual water, and realize re-circulation processing; through the installation of the fixed frame, it is convenient to place the filter net, so as to realize the reception of the filter cake and the filtration and collection of the water, so as to separate the debris and the water, and facilitate the subsequent export and recycling processing; through the opening of the locking slot, it is convenient to install the buckle, so as to realize the stable and firm installation of the filter net; through the buckle and separation, it is convenient to disassemble and maintain the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between the mounting bracket and the filter press of the utility model;

[0025] Figure 3This is a schematic diagram of the connection structure between the mounting block and the mounting frame of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the slider and the guide rail of the utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the scraper and the mounting block of the utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the push block and the control cylinder of the utility model;

[0029] Figure 7 This is a schematic diagram of the connection structure between the filter screen and the collection box of the utility model;

[0030] Figure 8 This is a schematic diagram of the connection structure between the lock slot and the fixing frame of the utility model;

[0031] Figure 9 This is a schematic diagram of the connection structure between the buckle and the filter screen of the utility model.

[0032] Figure: 1. Dehydration mechanism; 101. Flotation machine; 102. Thickener; 103. Circulation tank; 104. Mixing drum; 105. Steam generator; 106. Filter press; 2. Moving mechanism; 201. Mounting frame; 202. Stepper motor; 203. Guide rail; 204. Rack; 205. Slider; 206. Gear; 3. Cleaning mechanism; 301. Drive cylinder; 302. Mounting block; 303. Scraper; 304. Connector Block; 305, card slot; 4, pushing mechanism; 401, control cylinder; 402, pushing block; 403, card block; 404, resistance spring; 5, blowing mechanism; 501, air inlet pipe; 502, nozzle; 6, collecting mechanism; 601, collecting box; 602, universal wheel; 603, handle; 604, drain pipe; 7, filtering mechanism; 701, filter screen; 702, fixing frame; 703, buckle; 704, lock slot; 8, filter plate. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, the device for improving the dewatering performance of fine tail coal slime described in the utility model includes a dewatering mechanism 1, a moving mechanism 2 is installed on the dewatering mechanism 1, a cleaning mechanism 3 is installed on the moving mechanism 2, a pushing mechanism 4 is installed on the moving mechanism 2, a blowing mechanism 5 is installed on the cleaning mechanism 3, a collecting mechanism 6 is installed at the bottom of the dewatering mechanism 1, and a filtering mechanism 7 is installed on the collecting mechanism 6.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the dehydration mechanism 1 includes a flotation machine 101, one end of the flotation machine 101 is connected to a thickener 102, one end of the thickener 102 is connected to a stirring barrel 104, one side of the stirring barrel 104 is connected to a steam generator 105, the bottom of the stirring barrel 104 is connected to a filter press 106, the bottom of the thickener 102 is connected to a circulation pool 103, one end of the filter press 106 is connected to the circulation pool 103 through a pipeline, and a plurality of stacked filter plates 8 are slidably connected to the filter press 106. The tail coal slime water after flotation by the flotation machine 101 is added with filter aids and temperature-sensitive polymers and then enters the The thickener 102 is described, and the overflow of the thickener 102 enters the circulating water pool, and the underflow enters the stirring barrel 104 in the filter press workshop. Hot steam is introduced into the stirring barrel 104. While ensuring that the temperature in the stirring barrel 104 is higher than the cloud point temperature of the thermosensitive polymer, the slurry is fed into the filter press 106 by a pump, and dehydration is achieved through the cooperation of multiple filter plates 8. The filtrate squeezed by the filter press 106 enters the circulating water pool, and the filter cake is cleaned and sold as tail coal slime. On the basis of ensuring the existing process of the coal preparation plant, the effect of significantly reducing the moisture content of the tail coal slime can be achieved, and the moisture content of the tail coal slime is less than 20%.

[0036] Specifically, such as Figure 2 、 Figure 3 and Figure 4 As shown, the moving mechanism 2 includes a mounting frame 201, and the mounting frame 201 is installed on the filter press 106. The mounting frame 201 is an "n"-shaped structure. The two ends of the bottom of the mounting frame 201 are slidably connected to the side walls of the filter press 106 through sliders 205 and guide rails 203. Stepper motors 202 are respectively installed at the two ends of the bottom of the mounting frame 201. The output shaft of the stepper motor 202 is installed with a gear 206. Racks 204 are installed on both sides of the filter press 106. The gear 206 is engaged with the rack 204. The installation of the guide rails 203 and the slider 205 facilitates the free sliding of the mounting frame 201 and the filter press 106. The operation of the stepper motor 202 causes the gear 206 and the rack 204 to roll, which is beneficial to the drive control of the mounting frame 201, realizes the certain position control of the mounting frame 201, and facilitates the removal of filter cakes.

[0037] Specifically, such as Figure 2 、 Figure 3 and Figure 5 The cleaning mechanism 3 includes a driving cylinder 301, two driving cylinders 301 are installed on the top of the mounting frame 201, and a mounting block 302 is slidably connected to the bottom of the mounting frame 201. The output shafts at the bottom of the two driving cylinders 301 are detachably connected to the top of the mounting block 302, and symmetrically distributed scrapers 303 are respectively installed on both sides of the mounting block 302. The scrapers 303 are arc-shaped structures, and one side of the scrapers 303 is a wavy structure. The installation of the driving cylinder 301 is conducive to the connection of the mounting block 302, and the installation of the mounting block 302 is conducive to the installation of two sets of symmetrical scrapers 303. Through the operation of the driving cylinder 301, the mounting block 302 drives the scrapers 303 to slide down, which is conducive to shoveling the filter cakes on the opposite sides of the two filter plates 8. When the driving cylinder 301 rises, the scrapers 303 can also scrape upward again, so that the filter cake is cleaned more cleanly.

[0038] Specifically, such as Figure 5 As shown, the mounting block 302 is provided with a card slot 305 on both sides, and the two card slots 305 are slidably connected to a connecting block 304. The card slot 305 and one side of the connecting block 304 are both "convex" shaped structures. The two groups of scrapers 303 are respectively vertically fixedly connected to one side of the two connecting blocks 304. The opening of the card slot 305 facilitates the detachable installation of the connecting block 304. The installation of the connecting block 304 facilitates the fixation of the scraper 303, thereby facilitating the subsequent disassembly and assembly of the connecting block 304, and then the maintenance of the scraper 303.

[0039] Specifically, such as Figure 3 and Figure 6As shown, the pushing mechanism 4 includes a control cylinder 401, and the control cylinders 401 are respectively installed on both sides of the mounting frame 201. The output shaft of the control cylinder 401 is installed with a push block 402, and the push block 402 is an "L"-shaped structure. The push block 402 is slidably connected to one side of the mounting frame 201 through the control cylinder 401. A clamping block 403 is installed inside one end of the push block 402, and the clamping block 403 is a trapezoidal structure. The clamping block 403 is slidably connected to the inside of the push block 402 through a resistance spring 404. One end of the clamping block 403 extends to the outside of the push block 402, and one end of the clamping block 403 is in conflict with the side wall of the filter press 106. The installation of the control cylinder 401 is conducive to the connection of the push block 402, and the resistance spring 4 04, the block 403 extends to the outside of the push block 402, and through the operation of the control cylinder 401, the push block 402 slides on one side of the filter press 106, and the block 403 contacts and contracts with the filter plate 8 on the side wall of the filter press 106, so that the block 403 can slide to the side of the filter plate 8, and the block 403 is reset under the elastic force of the contact spring 404, so that the block 403 contacts the side wall of the filter plate 8, and the control cylinder 401 contracts, so that the push block 402 moves in the opposite direction and resets, which is beneficial to pulling the filter plate 8 to a certain position, making it convenient for the scraper 303 to scrape and clean the other side of the filter plate 8, and so on, to achieve the cleaning work on both sides of the filter plate 8.

[0040] Specifically, such as Figure 2 、 Figure 3 and Figure 5 As shown, the blowing mechanism 5 includes an air inlet pipe 501, and the air inlet pipe 501 is slidably connected to the center of the mounting frame 201, and the bottom of the air inlet pipe 501 is connected to the inner side of the top of the mounting block 302. The bottom of the mounting block 302 is a trapezoidal structure, and multiple equidistantly distributed nozzles 502 are installed on both sides of the bottom of the mounting block 302. The ends of multiple nozzles 502 extend to the interior of the mounting block 302 and are connected to the air inlet pipe 501. The installation of the air inlet pipe 501 is conducive to connection with an external air pipe. External gas enters the interior of the mounting block 302 through the air inlet pipe 501 and is ejected through multiple nozzles 502, which is conducive to gas ejection and flushing when cleaning the filter plate 8, so that the attached debris can be well washed away.

[0041] Specifically, such as Figure 2 and Figure 7As shown, the collecting mechanism 6 includes a collecting box 601. Two collecting boxes 601 are installed at the bottom of the filter press 106. A plurality of universal wheels 602 are installed at the bottom of the two collecting boxes 601. The installation of the collecting boxes 601 facilitates the receiving and storage of the cleaned filter cakes. The installation of the universal wheels 602 facilitates the extraction and movement of the collecting boxes 601, thereby facilitating the transfer and processing of the collected debris.

[0042] Specifically, such as Figure 7 As shown, a drain pipe 604 is installed on one side of each of the two collecting boxes 601, and the drain pipe 604 is connected to the circulation pool 103. Two handles 603 are installed on both sides of the two collecting boxes 601. The installation of the handles 603 facilitates the pulling and manipulation of the collecting boxes 601, thereby realizing the transportation and cleaning of the collecting boxes 601. The installation of the drain pipe 604 facilitates the collection and discharge of residual water, thereby realizing recirculation processing.

[0043] Specifically, such as Figure 7 As shown, the filtering mechanism 7 includes a fixed frame 702, a fixed frame 702 is installed inside the two collecting boxes 601, and a filter screen 701 is provided on the top side of the two collecting boxes 601. The bottom edge of the filter screen 701 is in conflict with the fixed frame 702. The installation of the fixed frame 702 facilitates the placement of the filter screen 701, thereby realizing the access to the filter cake and filtering and collecting the moisture, realizing the separation of debris and moisture, and facilitating the subsequent export and circulation processing.

[0044] Specifically, such as Figure 7 and Figure 8 As shown, two locking slots 704 are respectively provided on the top sides of both ends of the fixing frame 702, and the two ends of the filter screen 701 are fixedly connected with buckles 703. The locking slots 704 and the buckles 703 are both "convex" shaped structures. The buckles 703 are engaged with the inside of the locking slots 704. The opening of the locking slots 704 facilitates the engagement and installation of the buckles 703, thereby achieving a stable and firm installation of the filter screen 701. The separation of the buckles 703 from the filter screen facilitates the disassembly and maintenance of the filter screen 701.

[0045] When the utility model is used, the tail coal slurry after flotation by the flotation machine 101 is first added with a filter aid and a temperature-sensitive polymer and then enters the concentrator 102 (the coagulant used is a coagulant commonly used in coal preparation plants, such as polyaluminum chloride; the temperature-sensitive polymer flocculant used is a polymer of N-isopropyl acrylamide and N-(3-dimethylaminopropyl) methacrylamide (5%) (poly(NIPAM-DMAPMA)) or a polymer of N,N-diethyl-2-acrylamide (95%) and N-(3-dimethylaminopropyl) methacrylamide (5%) (poly(DEAAM-DMAPMA)), which adopts an oxidation-reduction initiation system for free radical polymerization and has a molecular weight of about 6 million). The overflow enters the circulating water pool, and the underflow enters the mixing barrel 104 of the filter press workshop. Hot steam is introduced into the mixing barrel 104. Under the condition that the temperature in the mixing barrel 104 is higher than the cloud point temperature of the thermosensitive polymer (the hot steam will make the slurry temperature higher than the cloud point temperature of the thermosensitive polymer flocculant. At this temperature, the flocculant changes from the hydrophilic phase to the hydrophobic phase. The cloud point temperature of poly (NIPAM-DMAPMA) is 45 ° C, and the cloud point temperature of poly (DEAAM-DMAPMA) is 37 ° C), the slurry is fed into the filter press 106 by the pump. The dehydration work is achieved through the cooperation of multiple filter plates 8. The filtrate squeezed by the filter press 106 enters the circulating water pool, and the filter cake is cleaned and sold as tail coal slime. On the basis of ensuring the existing process of the coal preparation plant The effect of significantly reducing the moisture content of the tail coal slime can be achieved, and the moisture content of the tail coal slime is lower than 20%. The installation of the guide rail 203 and the slider 205 is conducive to the free sliding of the mounting frame 201 and the filter press 106. The operation of the stepping motor 202 makes the gear 206 and the rack 204 roll, which is conducive to the drive control of the mounting frame 201, and realizes a certain position control of the mounting frame 201, which is convenient for removing the filter cake. The installation of the driving cylinder 301 is conducive to the connection of the mounting block 302. The installation of the mounting block 302 is conducive to the installation of two sets of symmetrical scrapers 303. The operation of the driving cylinder 301 makes the mounting block 302 drive the scraper 303 to slide down, which is conducive to shoveling the filter cake on the opposite sides of the two filter plates 8. When the driving cylinder 301 rises, The scraper 303 can also scrape upwards again to make the filter cake clean more clean. The opening of the card slot 305 is conducive to the detachable installation of the connecting block 304. The installation of the connecting block 304 is conducive to the fixation of the scraper 303, thereby facilitating the subsequent disassembly and assembly of the connecting block 304, and then the maintenance of the scraper 303. The installation of the control cylinder 401 is conducive to the connection of the push block 402. The card block 403 is extended to the outside of the push block 402 under the interference of the interference spring 404. By controlling the operation of the control cylinder 401, the push block 402 slides on one side of the filter press 106, and the card block 403 contacts and contracts with the filter plate 8 on the side wall of the filter press 106, so that the card block 403 can slide to the side of the filter plate 8, and the card block 403 is reset under the elastic force of the interference spring 404.The card block 403 is brought into contact with the side wall of the filter plate 8, and the contraction of the control cylinder 401 is controlled to make the push block 402 move in the opposite direction and reset, which is conducive to pulling the filter plate 8 to a certain position, making it convenient for the scraper 303 to scrape and clean the other side of the filter plate 8. Similarly, the cleaning work on both sides of the filter plate 8 is achieved. The installation of the air inlet pipe 501 is conducive to connection with the external air pipe. The external air enters the interior of the mounting block 302 through the air inlet pipe 501 and is sprayed out through multiple nozzles 502, which is conducive to the gas spraying and flushing when cleaning the filter plate 8, so that the attached debris is well washed away. The installation of the collection box 601 is conducive to the access and storage of the cleaned filter cake. The installation of the universal wheel 602 is conducive to the extraction and removal of the collection box 601. The handle 603 is installed to facilitate the pulling and manipulation of the collection box 601, so as to realize the transportation and cleaning of the collection box 601. The drain pipe 604 is installed to facilitate the collection and drainage of residual water for re-circulation. The fixed frame 702 is installed to facilitate the placement of the filter 701, so as to realize the access of the filter cake and the filtration and collection of water, so as to separate the debris and water, and facilitate the subsequent drainage and recycling. The locking slot 704 is opened to facilitate the engagement and installation of the buckle 703, so as to realize the stable and firm installation of the filter 701. The buckle 703 is separated from the filter 701, so as to facilitate the disassembly and maintenance of the filter 701.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for improving the dehydration performance of fine tailings, characterized in that: The invention comprises a dehydration mechanism (1), a moving mechanism (2) is installed on the dehydration mechanism (1), a cleaning mechanism (3) is installed on the moving mechanism (2), a pushing mechanism (4) is installed on the moving mechanism (2), an air blowing mechanism (5) is installed on the cleaning mechanism (3), a collecting mechanism (6) is installed at the bottom of the dehydration mechanism (1), and a filtering mechanism (7) is installed on the collecting mechanism (6); The dehydration mechanism (1) comprises a flotation machine (101), one end of the flotation machine (101) is connected to a concentrator (102), one end of the concentrator (102) is connected to a stirring barrel (104), one side of the stirring barrel (104) is connected to a steam generating device (105), the bottom of the stirring barrel (104) is connected to a filter press (106), the bottom of the concentrator (102) is connected to a circulation pool (103), one end of the filter press (106) is connected to the circulation pool (103) via a pipeline, and a plurality of stacked filter plates (8) are slidably connected to the filter press (106); The moving mechanism (2) comprises a mounting frame (201), the mounting frame (201) being mounted on the filter press (106), the mounting frame (201) being an "N"-shaped structure, the bottom ends of the mounting frame (201) being slidably connected to the side walls of the filter press (106) via sliders (205) and guide rails (203), the bottom ends of the mounting frame (201) being respectively mounted with stepping motors (202), the output shaft of the stepping motor (202) being mounted with gears (206), racks (204) being mounted on both sides of the filter press (106), the gears (206) being meshed with the racks (204); The cleaning mechanism (3) comprises a driving cylinder (301), two driving cylinders (301) are mounted on the top of the mounting frame (201), a mounting block (302) is slidably connected to the bottom of the mounting frame (201), the output shafts at the bottom of the two driving cylinders (301) are detachably connected to the top of the mounting block (302), and symmetrically distributed scrapers (303) are respectively mounted on both sides of the mounting block (302).

2. The device for improving the dewatering performance of fine tailings according to claim 1, characterized in that: The scraper (303) is an arc-shaped structure, and one side of the scraper (303) is a wave-shaped structure.

3. The device for improving the dewatering performance of fine tailings according to claim 1, characterized in that: The mounting block (302) is provided with clamping grooves (305) on both sides, and the two clamping grooves (305) are slidably connected to connecting blocks (304). One side of the clamping grooves (305) and the connecting blocks (304) are both convex-shaped structures, and the two groups of scrapers (303) are respectively vertically fixedly connected to one side of the two connecting blocks (304).

4. The device for improving the dewatering performance of fine tailings according to claim 1, characterized in that: The pushing mechanism (4) comprises a control cylinder (401), and the control cylinders (401) are respectively installed on both sides of the mounting frame (201). A pushing block (402) is installed on the output shaft of the control cylinder (401). The pushing block (402) is an "L"-shaped structure. The pushing block (402) is slidably connected to one side of the mounting frame (201) through the control cylinder (401). A clamping block (403) is installed inside one end of the pushing block (402). The clamping block (403) is a trapezoidal structure. The clamping block (403) is slidably connected to the inside of the pushing block (402) through a contact spring (404). One end of the clamping block (403) extends to the outside of the pushing block (402), and one end of the clamping block (403) contacts the side wall of the filter press (106).

5. The device for improving the dewatering performance of fine tailings according to claim 1, characterized in that: The blowing mechanism (5) comprises an air inlet pipe (501), the air inlet pipe (501) is slidably connected to the center of the mounting frame (201), the bottom of the air inlet pipe (501) is connected to the inner side of the top of the mounting block (302), the bottom of the mounting block (302) is a trapezoidal structure, and a plurality of nozzles (502) are installed on both sides of the bottom of the mounting block (302) at equal intervals, and the ends of the plurality of nozzles (502) extend into the interior of the mounting block (302) and are connected to the air inlet pipe (501).

6. The device for improving the dewatering performance of fine tailings according to claim 1, characterized in that: The collecting mechanism (6) comprises a collecting box (601), two collecting boxes (601) are installed at the bottom of the filter press (106), and a plurality of universal wheels (602) are respectively installed at the bottom of the two collecting boxes (601).

7. The device for improving the dewatering performance of fine tailings according to claim 6, characterized in that: A drainage pipe (604) is installed on one side of each of the two collecting boxes (601), and the drainage pipe (604) is connected to the circulation pool (103). Two handles (603) are installed on both sides of each of the two collecting boxes (601).

8. The device for improving the dewatering performance of fine tailings according to claim 7, characterized in that: The filtering mechanism (7) comprises a fixing frame (702), the fixing frame (702) being installed inside the two collecting boxes (601), and a filter screen (701) being provided on the top side of the two collecting boxes (601), the bottom edge of the filter screen (701) being in contact with the fixing frame (702).

9. The device for improving the dewatering performance of fine tailings according to claim 8, characterized in that: Two locking grooves (704) are respectively provided on the top sides of both ends of the fixing frame (702), and buckles (703) are fixedly connected to both ends of the filter screen (701). Both the locking grooves (704) and the buckles (703) are convex-shaped structures, and the buckles (703) are engaged with the inside of the locking grooves (704).

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