Thickener for mineral separation

Abstract

The utility model provides a thickener for mineral separation, which belongs to the technical field of thickeners and comprises a pool body, an overflow port and an overflow groove communicated with the overflow port are arranged at the top of the pool body, and the overflow groove is communicated with an overflow pipe. A top frame is erected on the top of the tank body, the feeding barrel is hung in the center of the top frame, a feeding pipe is fixed to one side of the top frame, and the feeding pipe is tangentially connected with the side wall of the feeding barrel; a first driving motor is fixedly arranged in the center of the top frame, and the output end of the first driving motor is connected with a rotating shaft rotationally connected to the lower portion of the top frame. A harrow frame is arranged on the side wall of the rotating shaft, and a scraper is arranged at one end, close to the inner wall of the tank body, of the harrow frame and abuts against the inner wall of the tank body; a compression mechanism is further arranged between the feeding barrel and the rake frame; the bottom of the pool body communicates with a collecting tank, and the bottom of the collecting tank is connected with a tailing outlet pipe. The thickener is short in concentration time, high in concentration efficiency, high in tailing treatment efficiency and treatment capacity and small in occupied area, the quality of tailings is improved, and recycling of resources is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to thickener technical field especially relates to a thickener for ore dressing. BACKGROUND

[0002] In the ore dressing process, the treatment of tailings is an important link. The tailings are often used as filling aggregate in mines, mixed with cementing material for stirring (no cementing material is added when non-cementing filling is used), to form filling slurry meeting the requirements, which is self-flowing or pumped to the backfilling site of the mine through drilling and underground filling pipeline. The tailings used as filling aggregate are mainly from the tailings with low concentration (generally 10-20%) in the dressing plant. The tailings and flocculants have a coagulation reaction in the thickener, and the fine particles are aggregated to form larger flocs. After flocculation, sedimentation and concentration in the thickener, the tailings with high concentration (55-80%) are formed.

[0003] The thickener is a solid-liquid separation equipment based on gravity sedimentation. When the conventional thickener is used to treat tailings with low concentration, the tailings and flocculants form tailings flocs after the addition of flocculants, which can accelerate the sedimentation. However, the water is also wrapped in the tailings flocs, and the water in the tailings flocs cannot be quickly discharged when relying on gravity for sedimentation, resulting in slow thickening speed of the thickener, long time to reach the requirement of stable discharge concentration, long concentration time, low concentration efficiency, low tailings treatment efficiency, and low treatment capacity of the thickener. In order to improve the treatment capacity of the thickener, the subsequent problems such as the increase of the floor area and energy consumption of the thickener are easily caused. SUMMARY

[0004] The utility model provides a kind of thickener for ore dressing to solve the problems such as long concentration time, low concentration efficiency, low tailings treatment efficiency and treatment capacity, large floor area and high energy consumption of the thickener in prior art.

[0005] The utility model provides a kind of thickener for ore dressing, it includes: cylindrical pool body, pool body top is equipped with overflow, and pool body outer side is equipped with the overflow groove being communicated with overflow, overflow groove is communicated overflow pipe;Pool body top center position is erected with top frame, feed barrel is hoisted at the center position of top frame, and top frame one side is fixed with feed pipe, and feed pipe is connected with the tangential connection of the side wall of feed barrel;First drive motor is fixedly arranged in the center position of top frame, and the output end of first drive motor is connected with the rotating shaft being rotatably connected below top frame, and rotating shaft penetrates feed barrel;Rake frame is provided on the side wall of rotating shaft, and one end of rake frame is close to the inner wall of pool body and is provided with scraper, and scraper is abutted with the inner wall of pool body;Compression mechanism is further provided between feed barrel and rake frame;The bottom center of pool body is communicated with collection groove, and the bottom of collection groove is connected with tailings outlet pipe.

[0006] Further, the bottom of the pool body is provided with an inverted conical structure, and the bottom surface of the pool body is arranged at an inclination angle greater than 0° and less than or equal to 60° with respect to the horizontal plane; the bottom of the rake frame abuts against the bottom surface of the pool body.

[0007] Further, the feeding barrel comprises a flow stabilizing barrel, a flow guide plate, helical blades, a fixed bottom ring, and a flow guide plate; the flow stabilizing barrel is of a hollow cylindrical structure, and the feeding pipe is tangentially connected to the side wall of the flow stabilizing barrel; the bottom of the flow stabilizing barrel is connected to the annular flow guide plate, the bottom of the flow guide plate is uniformly provided with a plurality of helical blades in the circumferential direction, and the other ends of all the helical blades extend downward and are connected to the fixed bottom ring; the flow guide plate is arranged on the inner wall of the flow stabilizing barrel and at the connection between the feeding pipe and the flow stabilizing barrel, and the direction of the flow guide plate is consistent with the feeding direction.

[0008] Further, the diameter of the flow stabilizing barrel is greater than the diameter of the fixed bottom ring.

[0009] Further, the compression mechanism comprises a lifting driving member, a lifting plate, a plurality of vertical plates, and a plurality of sieve plates corresponding to the vertical plates; the lifting plate is arranged in parallel below the top frame, the bottom of the lifting plate is uniformly distributed with a plurality of vertical plates in the length direction, and the bottom of each vertical plate is vertically connected with a corresponding sieve plate; and sieve holes are uniformly and densely arranged on each sieve plate.

[0010] Further, the lifting driving member comprises a second driving motor arranged on the top frame, the output end of the second driving motor is connected to a screw rod rotatably arranged below the top frame, the other end of the screw rod is rotatably connected to a support frame arranged in the pool body; a guide rod is further arranged between the top frame and the support frame, and the guide rod is symmetrically arranged with the screw rod; the screw rod is threadedly inserted into the lifting plate, and the guide rod is slidably inserted into the lifting plate; a rotating shaft penetrates through the lifting plate and the support frame, and is rotatably connected to the lifting plate and the support frame.

[0011] Further, the rotating shaft extends to the bottom of the collection tank, and a plurality of scattering blades are arranged on the rotating shaft; all the scattering blades are arranged in a helical manner in the axial direction of the rotating shaft.

[0012] Further, one end of each scattering blade is embedded in the rotating shaft, and the blade surface of each scattering blade is arranged obliquely with respect to the axis of the rotating shaft.

[0013] Further, a clear nozzle is arranged on the wall of the tailings outlet pipe, the clear nozzle is connected to a flushing pump, and the inlet of the flushing pump is connected to the overflow pipe.

[0014] The mineral processing thickener provided by this utility model can rapidly improve the concentration efficiency of tailings by utilizing multiple methods such as gravity settling, compression mechanism compression, and rake frame thickening, shortening the processing time and increasing the tailings processing capacity of the thickener. This results in lower overflow turbidity, higher discharge concentration, improved tailings quality, and facilitates resource recycling. It also helps reduce the footprint of the thickener, lowers energy consumption, and reduces infrastructure construction costs, thus contributing to energy conservation and emission reduction for enterprises. The practicality and production efficiency of this thickener are greatly improved.

[0015] The feed hopper of this thickener creates a swirling effect on the feed, causing it to enter the tank in a spiral flow. This ensures that the particles in the tailings form large flocs under the action of the flocculant, which quickly enter the settling layer, shortening the settling distance of the large flocs. It also avoids the feed directly impacting the already settled material in the tank, which could cause backflow, agitation, or other phenomena that would affect the turbidity of the overflow liquid in the clarification layer. This ensures the stability of the feed and improves the recovery rate and clarity of the overflow liquid.

[0016] The thickener's compression mechanism compresses the moisture in the flocs of the thickening layer, accelerating the settling of large particles in the tailings, speeding up the tailings thickening process, and increasing the tailings compression rate. The agitator plates in the collection tank and the unclogging nozzles on the tailings outlet pipe prevent tailings from accumulating and clogging, thus improving the flowability and discharge efficiency of the tailings. Besides its use in mineral processing, this thickener can also be applied in industries such as chemical, metallurgical, building materials, coal, and wastewater treatment for the concentration and purification of solid-containing liquids. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a mineral processing thickener provided in one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the feed hopper provided in one embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the compression mechanism provided in one embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-pool body, 2-top frame, 3-overflow tank, 4-feeding barrel, 5-collecting tank, 31-overflow pipe, 41-feeding pipe, 42-steady flow barrel, 43-guide plate, 44-spiral piece, 45-fixed bottom ring, 46-drainage plate, 51-tailings outlet pipe, 52-scattering piece, 53-clog-removing nozzle, 54-flushing pump, 61-first driving motor, 62-rotating shaft, 71-rake frame, 72-scraping plate, 81-lifting plate, 82-vertical plate, 83-sieve plate, 84-second driving motor, 85-screw rod, 86-supporting frame, 87-guiding rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0024] As Figure 1 The present application discloses a thickener for ore dressing, which comprises a cylindrical pool body 1, an overflow port is arranged at the top of the pool body 1, an overflow tank 3 communicating with the overflow port is arranged at the outer edge of the pool body 1, and the overflow tank 3 is connected with an overflow pipe 31; a top frame 2 is arranged at the center position of the top of the pool body 1, a feeding barrel 4 is hung at the center position of the top frame 2, a feeding pipe 41 is fixed to one side of the top frame 2 and is tangentially connected with the side wall of the feeding barrel 4; a first driving motor 61 is fixedly arranged at the center position of the top frame 2, the output end of the first driving motor 61 is connected with a rotating shaft 62 rotatingly connected below the top frame 2, and the rotating shaft 62 penetrates through the feeding barrel 4; a rake frame 71 is arranged on the side wall of the rotating shaft 62, a scraping plate 72 is arranged at the end of the rake frame 71 close to the inner wall of the pool body 1, and the scraping plate 72 abuts against the inner wall of the pool body 1; a compression mechanism is further arranged between the feeding barrel 4 and the rake frame 71; a collecting tank 5 is connected with the bottom center of the pool body 1, and a tailings outlet pipe 51 is connected with the bottom of the collecting tank 5.

[0025] When the thickener is in use, the tailings and the flocculating agent are fed into the feed tank 4 through the feed pipe 41, and then continue to enter the pool body 1. Under the action of gravity, the flocs formed by the tailings particles continue to sink and thicken, and finally form a thickening layer, a compression layer, a settling layer and a clarified layer from bottom to top in the pool body 1 of the thickener. The supernatant of the clarified layer is discharged through the overflow pipe 31 into the overflow tank 3, and finally into the wastewater treatment unit. The process of discharging the supernatant is efficient and stable. After the tailings and the flocculating agent are fed, gravity settling is carried out in the settling layer, and then further compression is carried out by the compression mechanism in the compression layer to remove the water entrained in the flocs. Then, in the thickening layer, the raking frame 71 is used for thickening to realize solid-liquid separation, and the concentrated tailings are concentrated to the center position at the bottom of the pool body 1, and finally discharged into the collection tank 5. The high-concentration tailings are discharged into the tailings treatment unit through the tailings outlet pipe 51.

[0026] The raking frame 71 adopts the structure of the raking frame 71 commonly used in the art. During the rotation of the rotating shaft 62 driven by the first driving motor 61, the raking frame 71 drives the surrounding water and materials to move in a vortex shape, scrapes off the materials accumulated in the thickening layer, extrudes and discharges the water therein, and then pushes the concentrated tailings to the middle position at the bottom of the pool body 1 to accelerate the discharging speed of the tailings, and finally sends them to the collection tank 5 below the bottom of the pool body 1. At the same time, the raking frame 71 also drives the scraper 72 to rotate when rotating, which can scrape off the particles adhering to the inner side wall of the pool body 1, reduce the residual solid particles in the thickening layer slurry, and prevent the formation of material accumulation on the side wall of the pool body 1, thereby affecting the thickening effect of the thickening layer.

[0027] When the thickener is in use, the thickening layer, the compression layer, the settling layer and the clarified layer formed in the pool body 1 can all play a role in solid-liquid separation. By using gravity settling, compression by the compression mechanism, thickening by the raking frame 71 and other means, the concentration efficiency of the tailings can be quickly improved, the treatment time is shortened, the tailings treatment capacity of the thickener is increased, the quality of the tailings is improved, which is conducive to resource recycling and utilization, and also helps to reduce the floor area occupied by the thickener, reduce energy consumption, reduce the cost of infrastructure construction, and is conducive to energy saving and emission reduction of enterprises. The practicability and production efficiency of the thickener are greatly improved.

[0028] Further, the bottom of the pool body 1 is provided with a reverse conical structure, and the bottom surface of the pool body 1 is arranged at an inclination angle greater than 0° and less than or equal to 60° with respect to the horizontal plane; the bottom of the raking frame 71 abuts against the bottom surface of the pool body 1. The inclined arrangement of the bottom surface of the pool body 1 can accelerate the collection of tailings to the center position, improve the discharge and discharging speed, and also avoid the accumulation of tailings on the bottom surface of the pool body 1.

[0029] As Figure 2Further, the feeding barrel 4 comprises a steady flow barrel 42, a guide plate 43, a spiral blade 44, a fixed bottom ring 45 and a flow guide plate 46; the steady flow barrel 42 is a hollow cylindrical structure, and the feeding pipe 41 is tangentially connected with the side wall of the steady flow barrel 42; the bottom of the steady flow barrel 42 is connected with the annular guide plate 43, the bottom of the guide plate 43 is uniformly provided with a plurality of spiral blades 44 in the circumferential direction, and the other end of all the spiral blades 44 extends downward and is connected with the fixed bottom ring 45; the flow guide plate 46 is arranged on the inner wall of the steady flow barrel 42 and is arranged at the connection between the feeding pipe 41 and the steady flow barrel 42, and the direction of the flow guide plate 46 is consistent with the feeding direction.

[0030] The feeding barrel 4 is used for receiving the material from the feeding pipe 41, the material transported by the feeding pipe 41 is the mixture of tailings and flocculants, the structure of the feeding barrel 4 has a swirling effect on the feeding, so that the feeding enters the pool body 1 in a spiral flow manner, which can deepen the mixing degree of the tailings and the flocculants in the feeding barrel 4, ensure that the particles in the tailings form large particle flocs under the action of the flocculants, maximize the adsorption of the flocculants, and can also degas the feeding, so that the flocculants and the particles in the tailings are better combined, and even if the feeding flow fluctuates, the flocculation effect can be ensured.

[0031] Further, the diameter of the steady flow barrel 42 is greater than the diameter of the fixed bottom ring 45. Specifically, the mixture of tailings and flocculants is introduced by the flow guide plate 46 and enters the steady flow barrel 42 and the guide plate 43 in a tangential feeding manner, which increases the centrifugal force of the material, and then the material moves downward along the guide of the spiral blade 44, passes through the fixed bottom ring 45, and enters the pool body 1 from the center of the feeding barrel 4 and the pool body 1. Under the guide of the spiral blade 44 and the action of low shear force, the large particle flocs enter the central area of the pool body 1 smoothly and can quickly enter the settling layer, which shortens the settling distance of the large particle flocs, and the fine particle flocs are evenly diffused to the periphery of the pool body 1 through the gaps between the spiral blades 44, which avoids the phenomenon of backflow and turning caused by the direct impact of the feeding on the settled material in the pool body 1, thereby affecting the turbidity of the overflow liquid in the clarification layer, ensuring the stability of the feeding, and improving the recovery rate and clarity of the overflow liquid.

[0032] As Figure 1 and Figure 3Further, the compression mechanism comprises a lifting driving member, a lifting plate 81, a plurality of vertical plates 82 and a plurality of sieve plates 83 corresponding to the vertical plates 82; the lifting plate 81 is arranged in parallel below the top frame 2, and the bottom of the lifting plate 81 is uniformly distributed with a plurality of vertical plates 82 along the length direction thereof; the bottom of each vertical plate 82 is vertically connected with a sieve plate 83 corresponding thereto; each sieve plate 83 is uniformly and densely provided with sieve holes; the lifting driving member comprises a second driving motor 84 arranged on the top frame 2, the output end of the second driving motor 84 is connected with a screw rod 85 rotatably arranged below the top frame 2, the other end of the screw rod 85 is rotatably connected with a support frame 86 arranged in the pool body 1; a guide rod 87 is further arranged between the top frame 2 and the support frame 86, and the guide rod 87 is symmetrically arranged with the screw rod 85; the screw rod 85 is threadedly inserted into the lifting plate 81, and the guide rod 87 is slidably inserted into the lifting plate 81; the rotating shaft 62 penetrates through the lifting plate 81 and the support frame 86, and is rotatably connected with the lifting plate 81 and the support frame 86.

[0033] The compression mechanism is mainly arranged at the position of the compression layer, the second driving motor 84 is connected with the screw rod 85 and is used to drive the screw rod 85 to rotate, under the action of the guide rod 87, the lifting plate 81 can only move up and down, and the lifting plate 81 drives the plurality of vertical plates 82 connected with the bottom to move up and down, and then drives the sieve plates 83 connected with the vertical plates 82 to move up and down. In the process of moving downward, the flocs with large particle size in the compression layer are intercepted by the sieve plates 83 and move downward together, and the moisture in the flocs can be compressed in the process, accelerating the sinking of large particles in the tailings and improving the compression rate of the tailings. When the sieve plates 83 move upward, the small particle flocs and clear liquid gathered above the sieve plates 83 mainly pass through the sieve holes, and will not affect the upward movement of the sieve plates 83, nor will it disturb the flow due to the upward movement of the sieve plates 83. After the sieve plates 83 rise to the specified position, the flocs in the compression layer continue to flocculate and settle for a period of time, and then the lifting plate 81 is lowered and raised according to the foregoing steps, and the process is repeated, thereby continuously pushing the large particle flocs downward, so as to greatly accelerate the concentration process of the tailings and improve the concentration efficiency. It should be noted that the diameter of the sieve holes on the sieve plates 83 is not limited, and can be selected by the person skilled in the art according to the actual production situation, and there can be gaps between adjacent sieve plates 83 and sieve plates 83, and the areas of the sieve plates 83 are different, and the plurality of sieve plates 83 should cover the entire cross section of the pool body 1 as a whole, so as to simultaneously compress the entire compression layer.

[0034] As shown in Figure 1 Further, the rotating shaft 62 extends to the bottom of the collection tank 5, and a plurality of scattering pieces 52 are arranged on the rotating shaft 62; all the scattering pieces 52 are arranged in a spiral on the axial direction of the rotating shaft 62. The collection tank 5 mainly contains tailings with high concentration, in order to prevent the tailings from depositing and blocking in the collection tank 5, the rotating shaft 62 is extended into the collection tank 5, and the scattering pieces 52 are used for low-speed shearing and stirring, so as to accelerate the discharge rate of the tailings outlet pipe 51.

[0035] Further, one end of the stirring sheet 52 is embedded on the rotating shaft 62, and the sheet surface of the stirring sheet 52 is arranged obliquely to the axis of the rotating shaft 62. The oblique spiral stirring sheet 52 can also push and spiral convey the tailings, improve the flow speed, and effectively improve the concentration efficiency and discharge efficiency of the tailings.

[0036] As Figure 1 Further, the tailings outlet pipe 51 is provided with a unblocking nozzle 53 on the pipe wall, the unblocking nozzle 53 is connected with a flushing pump 54, and the inlet of the flushing pump 54 is connected with the overflow pipe 31. In order to prevent the tailings in the tailings outlet pipe 51 from accumulating and blocking, part of the overflow liquid can be sprayed into the pipeline through the unblocking nozzle 53 to improve the flow performance of the tailings and maintain the smoothness of the discharge.

[0037] The thickener for mineral separation of the utility model, when working, the tailings and the flocculating agent are fed into the feed bucket 4 through the feed pipe 41, are guided by the guide plate 46, enter the steady flow bucket 42 and the guide plate 43 in the tangential feeding mode, then the material moves downward along the guide of the spiral sheet 44, the flocculation of the larger particles enters the central area of the pool body 1 through the fixed bottom ring 45, and the flocculation of the fine particles diffuses uniformly to the periphery of the pool body 1 through the gap between the spiral sheets 44 and enters the pool body 1. Under the action of gravity, the flocculation of the tailings particles continuously sinks and thickens, finally gradually forms a thickening layer, a compression layer, a settling layer and a clarified layer from bottom to top in the pool body 1 of the thickener, the supernatant of the clarified layer enters the overflow tank 3 through the overflow port, and finally is sent into the wastewater treatment unit through the overflow pipe 31. The process of discharging the supernatant is efficient and stable, and the water quality of the overflow liquid is less than 300ppm.

[0038] The tailings and the flocculating agent perform gravity settling in the settling layer, and then are further compressed by the compression mechanism. The second driving motor 84 is connected with the lead screw 85 and is used for driving the lead screw 85 to rotate. Under the action of the guide rod 87, the lifting plate 81 can only move up and down, the lifting plate 81 drives the multiple vertical plates 82 connected with the bottom to move up and down, and then drives the sieve plate 83 connected with the vertical plate 82 to move up and down. In the process of moving downward, the flocculation with large particle size in the compression layer is intercepted by the sieve plate 83 and moves downward together, and the moisture in the flocculation can be compressed in the process, so that the sinking of the large particles in the tailings is accelerated. When the sieve plate 83 moves upward, the flow of the flocculation is not disturbed due to the upward movement of the sieve plate 83. After the sieve plate 83 rises to the specified position, the flocculation in the compression layer continues to flocculate and settle for a period of time, then the lifting plate 81 is lowered and raised according to the foregoing steps, and the process is repeated, so that the large particle flocculation is continuously pushed downward, thereby the concentration process of the tailings can be greatly accelerated, and the concentration efficiency is improved.

[0039] The compressed large particle flocculation formed by the sediment layer continues to sink into the thick layer, and the rake frame 71 in the thick layer drives the surrounding water and material to perform a vortex motion in the rotation of the rotating shaft 62 driven by the first driving motor 61, scrapes off the material accumulated in the thick layer and extrudes the water in the material, then pushes the thickened tailings to the middle position at the bottom of the pool body 1, and concentrates the tailings formed after thickening to the center position at the bottom of the pool body 1, and finally discharges into the collecting groove 5. At the same time, the rake frame 71 also drives the scraper 72 to rotate when rotating, which can scrape off the particles attached to the inner side wall of the pool body 1, reduce the residual solid particles in the thick layer slurry, and prevent the formation of material accumulation on the side wall of the pool body 1, thereby affecting the thickening effect of the thick layer.

[0040] The high-concentration tailings formed are concentrated in the collecting groove 5, and the rotating shaft 62 also extends into the collecting groove 5, and the stirring pieces 52 thereon perform low-speed shearing and stirring on the tailings, while pushing and spirally conveying the tailings, improving the flow speed of the tailings, and effectively improving the concentration efficiency and discharge efficiency of the tailings. After the tailings enter the tailings outlet pipe 51, part of the overflow liquid can be periodically sprayed into the pipeline through the unblocking nozzle 53 to improve the flow performance of the tailings and maintain the smoothness of the discharge, and the tailings with a concentration of about 70% are finally discharged into the tailings treatment unit.

[0041] It should be noted that in the present application, the detailed structure of part of the equipment is not described in detail, but is known to those skilled in the art as prior art, and therefore will not be described here. In addition, the parts not involved in the device are the same as or can be realized by using the prior art.

[0042] It should be noted that pressure sensors, flow meters or temperature sensors are provided on the conveying pipelines inside the device between different units and equipment, and different valves such as pressure relief valves, pressure regulating valves, safety valves, etc. are also provided for adjusting and stabilizing the pressure of the whole device, and the opening of the valve can also be adjusted to adjust the flow of the material in the pipeline.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; the technical solutions recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A thickener for mineral processing, characterized by The utility model provides a kind of automatic tailing separation device, including: Cylindrical pool body, the pool body top is equipped with overflow, and the pool body outer side is equipped with overflow groove with the overflow intercommunication, the overflow groove intercommunication overflow pipe;The top center of the pool body is erected with top frame, feed barrel is hoisted at the center position of the top frame, the side of the top frame is fixed with feed pipe, and the feed pipe is connected with the side wall of the feed barrel tangentially;The center of the top frame is fixedly provided with first driving motor, the output end of the first driving motor is connected with rotating shaft connected below the top frame, and the rotating shaft penetrates the feed barrel;Rake frame is arranged on the side wall of the rotating shaft, and the end of the rake frame close to the inner wall of the pool body is provided with scraper, and the scraper is in abutment with the inner wall of the pool body;Compression mechanism is further provided between the feed barrel and the rake frame;The bottom center of the pool body is connected with collection groove, and the bottom of the collection groove is connected with tailing outlet pipe.

2. A thickener for mineral processing according to claim 1, characterized in that The bottom of the pool body is provided as inverted conical structure, and the bottom surface of the pool body is arranged with an inclination angle greater than 0° and less than or equal to 60° with the horizontal plane;The bottom of the rake frame is in abutment with the bottom surface of the pool body.

3. The thickener for mineral processing according to claim 1, characterized by The feed barrel includes flow stabilizing barrel, guide plate, spiral blade, fixed bottom ring and flow guide plate;The flow stabilizing barrel is a hollow cylindrical structure, and the feed pipe is tangentially connected with the side wall of the flow stabilizing barrel;The bottom of the flow stabilizing barrel is connected with the annular guide plate, the bottom of the guide plate is uniformly provided with a plurality of spiral blades in the circumferential direction, and the other end of all the spiral blades extends downward and is connected with the fixed bottom ring;The flow guide plate is arranged on the inner wall of the flow stabilizing barrel and at the connection between the feed pipe and the flow stabilizing barrel, and the direction of the flow guide plate is consistent with the feeding direction.

4. A thickener for mineral processing according to claim 3, characterized in that The diameter of the flow stabilizing barrel is greater than the diameter of the fixed bottom ring.

5. The thickener for mineral processing according to claim 1, characterized by The compression mechanism includes lifting drive, lifting plate, a plurality of vertical plates and a plurality of screen plates corresponding to the vertical plates;The lifting plate is arranged in parallel below the top frame, and a plurality of vertical plates are uniformly distributed on the bottom of the lifting plate along the length direction thereof, and each vertical plate is vertically connected with a screen plate corresponding thereto on the bottom thereof, and each screen plate is uniformly and densely provided with screen holes thereon; The lifting drive includes a second driving motor arranged on the top frame, the output end of the second driving motor is connected with a screw rod rotatably arranged below the top frame, the other end of the screw rod is rotatably connected with a support frame arranged in the pool body;A guide rod is further arranged between the top frame and the support frame, and the guide rod is symmetrically arranged with the screw rod;The screw rod is threadedly inserted into the lifting plate, and the guide rod is slidingly inserted into the lifting plate;The rotating shaft penetrates the lifting plate and the support frame, and is rotatably connected with the lifting plate and the support frame.

6. The thickener for mineral processing according to claim 1, characterized by The rotating shaft extends to the bottom of the collection groove, and a plurality of stirring blades are arranged on the rotating shaft;All the stirring blades are arranged in a spiral in the axial direction of the rotating shaft.

7. A thickener for mineral processing according to claim 6, characterised in that One end of the stirring blade is embedded on the rotating shaft, and the blade surface of the stirring blade is arranged obliquely to the axis of the rotating shaft.

8. A thickener for mineral processing according to any one of claims 1 to 7, characterized in that The tailings outlet pipe is provided with a pipe wall, and a blockage cleaning nozzle is arranged on the pipe wall. The blockage cleaning nozzle is connected with a flushing pump, and the inlet of the flushing pump is connected with the overflow pipe.

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