Tailing wastewater treatment equipment

Abstract

The invention relates to the technical field of wastewater treatment, and discloses tailing wastewater treatment equipment which comprises a filter box with an opening in the top, a filter mechanism which is arranged in an immersion area and reciprocates up and down by adopting a driving assembly, and the filter mechanism comprises an outer shell and an inner filter cartridge assembly movably connected to the interior of the outer shell; the filtering mechanism reciprocates up and down, so that the overall filtering efficiency is improved. When the servo motor drives the inner filter cartridge to rotate, the spiral blades on the outer side of the inner filter cartridge also rotate synchronously, the inner filter cartridge realizes rotation of the scraper assembly and the auger assembly through the top supporting wheel and the side supporting wheel, an additional power source is not needed, the structure is compact, impurities can be effectively discharged, clear water can be effectively stirred, and the filtering and cleaning effects are improved. When the inner filter cartridge assembly rotates, impurities in the tailing wastewater are primarily filtered and secondarily filtered, and the impurities can be conveyed out of the filter mechanism through rotation of the spiral blade and the auger assembly, so that the filter mechanism is prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a tailings wastewater treatment device. Background Art

[0002] Iron tailings wastewater usually contains a large amount of suspended solids (such as tailings particles, etc.), heavy metal ions (such as lead, mercury, cadmium, chromium, etc.) and harmful substances (such as arsenic, fluoride, etc.). If directly discharged, it will pollute water bodies and soil. Therefore, it is necessary to treat iron tailings wastewater, and this treatment process generally includes filtration, equalization in an adjustment tank, sedimentation treatment, and advanced treatment (including fine filtration, ion exchange treatment, membrane separation treatment, disinfection treatment, and sludge treatment, etc.).

[0003] In terms of equalization in the adjustment tank, sedimentation treatment, and advanced treatment, the existing technologies are relatively mature and have been widely applied, and their treatment of iron tailings wastewater is relatively mature. However, in the filtration of iron tailings wastewater, there is still much room for improvement to improve work efficiency.

[0004] However, the filtration mechanisms of some filtration devices are mostly fixedly arranged, resulting in insufficient contact between tailings wastewater and filtration components, low filtration efficiency, and the inability to quickly and effectively remove impurities in the wastewater. At the same time, the coordinated operation of each component in the existing filtration device is not reasonable enough, and each component often requires an independent power source for driving, resulting in a complex device structure and difficulty in forming good cooperation with the filtration mechanism during operation, making it difficult to improve the filtration efficiency. For this reason, we introduce a tailings wastewater treatment device. Summary of the Invention

[0005] The purpose of the present invention is to provide a tailings wastewater treatment device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A tailings wastewater treatment device includes a filtration tank with an open top, and the water storage tank inside the filtration tank is divided into a submerged area and an impurity area by a slope.

[0008] A filtration mechanism that moves up and down reciprocally by a driving component is provided in the submerged area, and the filtration mechanism includes an outer housing and an inner filtration cylinder assembly movably connected inside the outer housing.

[0009] A servo motor for driving the inner filtration cylinder assembly to rotate is installed at the front of the outer housing, a support wheel assembly for supporting the inner filtration cylinder assembly is provided on the inner side of the rear of the outer housing, and a scraper assembly and a screw conveyor assembly driven by the support wheel assembly are provided at the rear of the outer housing.

[0010] The scraper assembly is located in the impurity area, and the front end of the auger assembly extends to the lower side inside the inner filter cylinder assembly;

[0011] When the inner filter cylinder assembly rotates, it performs primary filtration and secondary filtration on the impurities in the tailings wastewater, and combines with the auger assembly to stir the clear water in the water storage tank, so that the impurities in the tailings wastewater are transported to the impurity area. At this time, the scraper assembly scrapes out the impurities in the impurity area.

[0012] Preferably, the bottom of the filter box is provided with legs, the bottom of the rear end of the filter box is provided with a discharge pipe, and the rear part of the side of the filter box is provided with a discharge groove located at the top of the impurity area.

[0013] Preferably, the driving assembly includes a rotating rod movably installed at the top of the side of the filter box, a support arm assembly and a driving arm fixed on the rotating rod, a cylinder body fixed at the top of the front end of the filter box, and a lifting assembly connected to the output end of the bottom of the cylinder body;

[0014] The top of the side of the filter box is provided with a mounting seat, the rotating rod passes through the mounting seat, the support arm assembly includes a fixed cylinder fixed on the rotating rod, a support plate fixed at the bottom of the fixed cylinder, and a support column movably connected to the bottom of the support plate. The support column supports on the bottom of the outer shell, and the fixed cylinder is located in the corresponding mounting seat;

[0015] The cylinder body is installed on the mounting frame at the top of the front end of the filter box, and the lifting assembly includes a piston rod connected to the output end of the bottom of the cylinder body and an I-shaped seat connected to the bottom of the piston rod;

[0016] The inner end of the driving arm extends into the rear through the slot on the side of the mounting frame and is connected with a cylindrical connecting head, and the cylindrical connecting head extends into the reserved slot on the side of the I-shaped seat.

[0017] Preferably, the outer shell includes a front shell and a rear shell which are assembled and installed front and back. The bottom of the front shell and the rear shell are evenly distributed with water permeable through grooves, and the flange rings on the outer side of the rear end of the front shell and the outer side of the front end of the rear shell are fixedly connected by bolts;

[0018] The outer sides of the front part of the front shell and the outer sides of the rear part of the rear shell are both provided with limiting annular grooves, and the support columns are clamped into the corresponding limiting annular grooves.

[0019] Preferably, an arc-shaped water injection pipe is fixed on the outer side of the front part of the front shell, a water injection pipe head is arranged at the top of the arc-shaped water injection pipe, and a feeding hopper is centrally installed at the top of the front end of the front shell.

[0020] Preferably, the inner filter cylinder assembly includes an inner filter cylinder and spiral blades arranged on the outside of the inner filter cylinder;

[0021] The rear end of the inner filter cylinder is arranged in an open manner, and filter holes are evenly distributed on the surface of the inner filter cylinder;

[0022] A limiting ring seat is provided on the outer side of the front end of the inner filter cylinder, and an annular limiting groove is provided on the outer side of the rear end of the inner filter cylinder;

[0023] A limiting disk is provided in the center of the front end of the inner filter cylinder. After the limiting disk penetrates and extends out of the front housing, a first pulley is fixed;

[0024] The servo motor is fixed on the top of the front end of the front housing. The output end of the servo motor is connected with a second pulley, and a first belt is connected between the second pulley and the first pulley.

[0025] Preferably, the support wheel assembly includes a top support wheel movably installed on the top inner wall of the rear end of the rear housing by a rotating shaft and side support wheels on both sides of the bottom of the inner wall of the rear end of the rear housing. The top support wheel and the side support wheels support on the outer surface of the annular limiting groove.

[0026] Preferably, the scraper assembly includes a scraper shaft movably connected to the rear end of the rear housing, a third pulley fixed to the rear part of the scraper shaft, and a rubber scraper fixed to the front end of the scraper shaft by a connecting arm;

[0027] The rotating shaft at the rear end of the top support wheel penetrates and extends out of the rear housing and is connected with a fourth pulley, and a second belt is connected between the fourth pulley and the third pulley.

[0028] Preferably, the auger assembly includes auger shafts movably connected to both sides below the inside of the rear housing and auger blades fixed on the surface of the auger shafts. The auger shafts extend into the inner filter cylinder;

[0029] The rear end of the auger shaft penetrates and extends out of the rear housing and is connected with a fifth pulley;

[0030] The rotating shaft at the rear end of the side support wheel penetrates and extends out of the rear housing and is connected with a sixth pulley, and a third belt is connected between the sixth pulley and the fifth pulley.

[0031] Preferably, a first leakage outlet and a second leakage outlet are provided at the bottom of the rear end of the rear housing.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: The up-and-down reciprocating movement of the filtering mechanism of the present invention enables more wastewater to have the opportunity to pass through the filtering holes on the surface of the inner filter cylinder for filtration, increasing the filtering area and frequency, and thus improving the overall filtering efficiency. The movement of the filtering mechanism drives the surrounding wastewater to flow, avoiding poor filtering effect due to long-term stillness of local wastewater. When the filtering mechanism moves downward, it will generate a certain pressure on the clear water in the immersion area, making the clear water more forcefully wash the impurities attached to the inner filter cylinder and the spiral blades. When moving upward, it can also change the water flow direction, further enhancing the cleaning effect on the impurities and improving the cleaning effect. This up-and-down movement utilizes the clear water in the water storage tank, improving the comprehensiveness of cleaning.

[0033] When the servo motor drives the inner filter cylinder to rotate, the spiral blades on the outer side of the inner filter cylinder also rotate synchronously. Moreover, the inner filter cylinder enables the rotation of the scraper assembly and the auger assembly through the top support wheel and the side support wheel, without the need for an additional power source. The structure is compact, which can effectively discharge impurities and stir the clear water, improving the filtering and cleaning effects. When the inner filter cylinder assembly rotates, it conducts primary filtering and secondary filtering on the impurities in the tailings wastewater. Through the rotation of the spiral blades and the auger assembly, the impurities can be conveyed out of the filtering mechanism, preventing the filtering mechanism from being blocked. The rotation of the spiral blades and the auger assembly and the up-and-down reciprocating movement of the filtering mechanism are carried out simultaneously to stir the clear water, which is conducive to the full mixing and filtering of the tailings wastewater. Description of the Drawings

[0034] Figure 1 Structural schematic diagram of the filtering mechanism of the present invention at the lowest position;

[0035] Figure 2 Stereoscopic structural schematic diagram of the driving component provided by the present invention;

[0036] Figure 3 Structural schematic diagram of the driving component of the present invention;

[0037] Figure 4 Structural schematic diagram of the connection between the driving component and the filtering mechanism of the present invention;

[0038] Figure 5 Exploded structural schematic diagram of the filtering mechanism of the present invention;

[0039] Figure 6 For the present invention Figure 5 Structural schematic diagram from another perspective;

[0040] Figure 7 Structural schematic diagram of the assembly of the auger assembly, the scraper assembly and the rear housing of the present invention;

[0041] Figure 8 For the present invention Figure 7 Structural schematic diagram from another perspective;

[0042] Figure 9 For the present invention Figure 8 Structural schematic diagram from another perspective;

[0043] Figure 10 Structural schematic diagram of the inner filter cylinder of the present invention;

[0044] Figure 11 Structural schematic diagram of the inner filter cylinder from another perspective of the present invention;

[0045] Figure 12 Structural schematic diagram of the front housing of the present invention;

[0046] Figure 13 Schematic structural diagram of the filtering mechanism of the present invention;

[0047] Figure 14 For the present invention Figure 13 Schematic cross-sectional structure diagram at A-A of the present invention;

[0048] Figure 15 Schematic structural diagram of the filtering mechanism of the present invention at the highest position;

[0049] Figure 16 For the present invention Figure 1 Schematic cross-sectional structure diagram of the present invention.

[0050] In the figure: 1, filtering box; 2, discharge groove; 3, slope; 4, rotating rod; 5, water storage tank; 6, mounting seat; 7, fixed cylinder; 8, support plate; 9, support column; 10, cylinder block; 11, slotted opening; 12, driving arm; 13, I-shaped seat; 14, piston rod; 15, discharge pipe; 16, cylindrical connecting head; 17, rear housing; 18, front housing; 19, limiting annular groove; 20, arc-shaped water injection pipe; 21, water injection pipe head; 22, servo motor; 23, feeding hopper; 24, flange ring; 25, bolt; 26, water permeable through groove; 27, fourth pulley; 28, second belt; 29, sixth pulley; 30, fifth pulley; 31, third belt; 32, third pulley; 33, scraper shaft; 34, connecting arm; 35, rubber scraper; 36, inner filter cylinder; 37, spiral blade; 38, first belt; 39, auger blade; 40, first leakage outlet; 41, second leakage outlet; 42, side support wheel; 43, auger shaft; 44, top support wheel; 45, limiting ring seat; 46, limiting disc; 47, first pulley; 48, second pulley; 49, annular limiting groove; 50, leg; 51, mounting frame. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Embodiment:

[0053] Please refer to Figure 1-16 , the present invention provides a technical solution:

[0054] A tailings wastewater treatment device includes a filtering box 1 with an open top. The water storage tank 5 inside the filtering box 1 is divided into an immersion area and an impurity area by a slope 3;

[0055] The bottom of the filtration tank 1 is provided with legs 50, and the bottom of the rear end of the filtration tank 1 is provided with a discharge pipe 15. The discharge pipe 15 is used to discharge the sewage in the water storage tank 5 after filtering the tailings wastewater.

[0056] At the rear part of the side of the filtration tank 1, there is a discharge groove 2 located at the top of the impurity area. The discharge groove 2 is used to scrape out the impurities in the impurity area through the discharge groove 2 when the scraper assembly rotates.

[0057] In the immersion area, there is a filtration mechanism that reciprocates up and down by means of a drive assembly.

[0058] As Figure 2-4 shown, the drive assembly includes a rotating rod 4 movably installed at the top of the side of the filtration tank 1, a support arm assembly and a drive arm 12 fixed on the rotating rod 4, a cylinder block 10 fixed at the top of the front end of the filtration tank 1, and a lifting assembly connected to the output end at the bottom of the cylinder block 10.

[0059] At the top of the side of the filtration tank 1, there is a mounting seat 6. The rotating rod 4 passes through the mounting seat 6. The support arm assembly includes a fixed cylinder 7 fixed on the rotating rod 4, a support plate 8 fixed at the bottom of the fixed cylinder 7, and a support column 9 movably connected to the bottom of the support plate 8. The support column 9 supports on the bottom of the outer shell, and the fixed cylinder 7 is located within the corresponding mounting seat 6.

[0060] The cylinder block 10 is installed on the mounting frame 51 at the top of the front end of the filtration tank 1. The lifting assembly includes a piston rod 14 connected to the output end at the bottom of the cylinder block 10 and an I-shaped seat 13 connected to the bottom of the piston rod 14.

[0061] The inner end of the drive arm 12 extends through the slot 11 on the side of the mounting frame 51 and is connected with a cylindrical connecting head 16. The cylindrical connecting head 16 extends into the reserved slot on the side of the I-shaped seat 13.

[0062] The cylinder block 10 is a hydraulic cylinder or a pneumatic cylinder or an electric telescopic cylinder, which is controlled by a PLC to work. The cylinder block 10 drives the I-shaped seat 13 to reciprocate up and down through the piston rod 14, so that the I-shaped seat 13 drives the rotating rod 4 and the support arm assembly to rotate reciprocally through the cylindrical connecting head 16 and the drive arm 12.

[0063] The support column 9 on the support arm assembly supports on the bottom of the outer shell, that is, the support column 9 is snapped into the corresponding limit annular groove 19. In this way, the reciprocating rotation of the support arm assembly can realize the reciprocating movement of the filtration mechanism up and down.

[0064] Since the support column 9 supports on the bottom of the outer shell, that is, the support column 9 is snapped into the corresponding limit annular groove 19, such a setting can prevent the filtration mechanism from shifting forward and backward.

[0065] Since the mounting base 6, the rotating rod 4, and the support arm assembly are all located on both sides of the filtering mechanism, when the filtering mechanism moves up and down, it can prevent the filtering mechanism from tilting and rolling down through the top side of the filter tank 1.

[0066] The reciprocating up and down movement of the filtering mechanism has the following advantages:

[0067] I. Improve the filtration efficiency:

[0068] 1. Increase the contact opportunity between the wastewater and the filtering components: The impurities in the tailings wastewater are unevenly distributed. When the filtering mechanism (including the outer housing and the inner filtering cylinder assembly) moves up and down in the immersion area, it can make the inner filtering cylinder assembly (the inner filtering cylinder 36 and the outer spiral blade 37) fully contact with the wastewater at different levels and regions. In this way, more wastewater has the opportunity to pass through the filtering holes on the surface of the inner filtering cylinder 36 for filtration, increasing the filtration area and frequency, and thus improving the overall filtration efficiency.

[0069] 2. Promote the flow and renewal of the wastewater: The movement of the filtering mechanism drives the surrounding wastewater to flow, avoiding the poor filtration effect caused by the long-term stillness of local wastewater. New wastewater is continuously supplemented around the inner filtering cylinder assembly, ensuring the continuous and efficient progress of the filtration process and maintaining the good fluidity of the wastewater in the water storage tank 5.

[0070] II. Enhance the cleaning effect:

[0071] 1. Strengthen the flushing of impurities: When the filtering mechanism moves downward, it will generate a certain pressure on the clear water in the immersion area, making the clear water more forcefully flush the impurities attached to the inner filtering cylinder 36 and the spiral blade 37. When moving upward, it can also change the water flow direction, further enhancing the cleaning effect on the impurities and improving the cleaning effect. This up and down movement utilizes the clear water in the water storage tank 5 to improve the comprehensiveness of the cleaning.

[0072] 2. Improve the utilization rate of clear water: The reciprocating up and down movement enables the filtering mechanism to be cleaned in the clear water at different depths, making full use of the clear water at each level of the water storage tank 5, avoiding the decline of the cleaning ability of local clear water due to overuse, and improving the overall utilization rate of clear water.

[0073] III. Optimize the impurity separation:

[0074] 1. Accelerate the precipitation and transfer of impurities: The movement of the filtering mechanism causes water flow fluctuations, which helps the impurities in the tailings wastewater to precipitate more quickly to the bottom of the outer housing (the front housing 18 and the rear housing 17). With the cooperation of the spiral blade 37 and the auger assembly (the auger shaft 43 and the auger blade 39), the precipitated impurities can be more smoothly transported to the impurity area through the first leakage outlet 40 and the second leakage outlet 41, realizing the effective separation of impurities.

[0075] 2. Reduce the accumulation of impurities on the filter component: By moving up and down, the inner filter cylinder assembly is constantly in contact with and cleaned by clean water, reducing the accumulation of impurities on the filter holes of the inner filter cylinder 36, avoiding the decline of the filtration efficiency caused by the blockage of the filter holes by impurities, and ensuring the stability and continuity of the filtration process.

[0076] The filtering mechanism includes an outer housing and an inner filter cylinder assembly movably connected inside the outer housing;

[0077] The outer housing includes a front housing 18 and a rear housing 17 which are assembled front and back. The bottom of the front housing 18 and the rear housing 17 are evenly distributed with water-permeable through grooves 26. In this way, when the bottom of the outer housing is immersed in the clean water in the immersion area, the clean water can enter the inner filter cylinder 36 through the water-permeable through grooves 26 and the filter holes on the surface of the inner filter cylinder 36;

[0078] The flange rings 24 on the outer side of the rear end of the front housing 18 and the outer side of the front end of the rear housing 17 are fixedly connected by bolts 25. In this way, the assembly and disassembly of the front housing 18 and the rear housing 17 can be realized, so as to clean or replace the inner filter cylinder 36 after subsequent disassembly;

[0079] Limit annular grooves 19 are provided on the outer sides of the front parts of the front housing 18 and the outer sides of the rear parts of the rear housing 17, and the support columns 9 are snapped into the corresponding limit annular grooves 19. Such a setting can prevent the filtering mechanism from shifting forward and backward.

[0080] An arc-shaped water injection pipe 20 is fixed on the outer side of the front part of the front housing 18. A water injection pipe head 21 is provided at the top of the arc-shaped water injection pipe 20. The water injection pipe head 21 is connected to the water outlet of the water pump. The PLC controls the operation of the water pump to introduce clean water into the arc-shaped water injection pipe 20 through the water injection pipe head 21, and finally the clean water flows into the water storage tank 5 inside the filter tank 1 through the bottom of the arc-shaped water injection pipe 20;

[0081] A feeding hopper 23 is centrally installed at the top of the front end of the front housing 18. The tailing wastewater can be introduced into the outer housing through the feeding hopper 23.

[0082] A servo motor 22 for driving the inner filter cylinder assembly to rotate is installed at the front part of the outer housing;

[0083] The inner filter cylinder assembly includes an inner filter cylinder 36 and a spiral blade 37 provided outside the inner filter cylinder 36;

[0084] In this way, when the servo motor 22 drives the inner filter cylinder 36 to rotate, the spiral blade 37 outside the inner filter cylinder 36 also rotates synchronously. When the tailing wastewater is introduced into the outer housing, the spiral blade 37 pushes the larger impurities in the tailing wastewater backward until the larger impurities are pushed into the impurity area through the second leakage outlet 41;

[0085] When the spiral blade 37 rotates to push larger impurities backward, the rotation of the spiral blade 37 also plays a role in further agitating the clear water in the immersion area, accelerating the cleaning speed of the clear water on the larger impurities and improving the cleaning effect;

[0086] When the spiral blade 37 rotates, it can push the newly entered tailings wastewater backward, which is beneficial to the filtration and separation of larger impurities and tailings wastewater in the tailings wastewater. The separated larger impurities gradually fall to the inner bottom wall of the outer housing under the action of gravity until they are pushed into the impurity area through the second leakage port 41;

[0087] Other tailings wastewater flows downward along the surface of the inner filter cylinder 36 until it enters the inner filter cylinder 36 through the filter holes. When the inner filter cylinder 36 rotates, the tailings wastewater in the inner filter cylinder 36 is cleaned and filtered. Part of the filtered impurities accumulates in the inner filter cylinder 36 (when the auger assembly rotates, this part of the impurities is discharged to the impurity area through the first leakage port 40), and the other part also accumulates on the inner bottom wall of the outer housing through the filter holes at the bottom (when the spiral blade 37 rotates, this part of the impurities is discharged to the impurity area through the second leakage port 41);

[0088] The rear end of the inner filter cylinder 36 is open, and filter holes are evenly distributed on the surface of the inner filter cylinder 36;

[0089] As Figure 14 shown, a limit ring seat 45 is provided on the outer side of the front end of the inner filter cylinder 36. The limit ring seat 45 is located at the inner front end of the front housing 18. A circular limit groove 49 is provided on the outer side of the rear end of the inner filter cylinder 36. As Figure 9 shown, the support wheel assembly includes a top support wheel 44 movably mounted on the top inner wall of the rear end of the rear housing 17 by a rotating shaft and side support wheels 42 on both sides of the bottom of the inner wall of the rear end of the rear housing 17. The top support wheel 44 and the side support wheels 42 support on the outer surface of the circular limit groove 49. Such a setting can realize the stable rotational installation of the outer housing on the inner filter cylinder 36;

[0090] A limit disk 46 is provided in the center of the front end of the inner filter cylinder 36. The limit disk 46 passes through and extends out of the front housing 18 and is fixed with a first pulley 47;

[0091] As Figure 13 shown, the servo motor 22 is fixed on the top of the front end of the front housing 18. The output end of the servo motor 22 is connected with a second pulley 48. A first belt 38 is connected between the second pulley 48 and the first pulley 47.

[0092] The servo motor 22 drives the second pulley 48 to rotate. The second pulley 48 drives the first pulley 47 to rotate through the first belt 38. The first pulley 47 drives the inner filter cylinder 36 to rotate in the outer housing.

[0093] A support wheel assembly for supporting the inner filter cartridge assembly is provided on the inner side of the rear part of the outer housing.

[0094] The support wheel assembly includes a top support wheel 44 movably mounted on the top of the inner wall at the rear end of the rear housing 17 by a rotating shaft and side support wheels 42 on both sides at the bottom of the inner wall at the rear end of the rear housing 17. The top support wheel 44 and the side support wheels 42 support on the outer surface of the annular limit groove 49.

[0095] With such a setting, when the inner filter cartridge 36 rotates, under the action of the frictional force between the outer surface of the annular limit groove 49 and the top support wheel 44 and the side support wheels 42, the top support wheel 44 and the side support wheels 42 also rotate simultaneously.

[0096] A scraper assembly and a screw conveyor assembly driven by the support wheel assembly are provided at the rear part of the outer housing.

[0097] The scraper assembly and the screw conveyor assembly respectively achieve power transmission through the rotation of the top support wheel 44 and the side support wheels 42, without an additional power source, with a compact structure, and can effectively discharge impurities and stir clear water, improving the filtering and cleaning effects.

[0098] The scraper assembly is located in the impurity area. The scraper assembly includes a scraper shaft 33 movably connected to the rear end of the rear housing 17, a third pulley 32 fixed to the rear part of the scraper shaft 33, and a rubber scraper 35 fixed to the front end of the scraper shaft 33 by a connecting arm 34.

[0099] The rotating shaft at the rear end of the top support wheel 44 penetrates and extends out of the rear housing 17 and is connected with a fourth pulley 27. A second belt 28 is connected between the fourth pulley 27 and the third pulley 32.

[0100] The inner filter cartridge 36 drives the top support wheel 44 and the fourth pulley 27 to rotate. The fourth pulley 27 drives the third pulley 32 to rotate through the second belt 28. The third pulley 32 drives the connecting arm 34 and the rubber scraper 35 to rotate through the scraper shaft 33, so that the rubber scraper 35 scrapes out the impurities in the impurity area through the discharge groove 2.

[0101] The front end of the screw conveyor assembly extends to the lower side inside the inner filter cartridge assembly. The screw conveyor assembly includes a screw shaft 43 movably connected to both sides below the inside of the rear housing 17 and screw blades 39 fixed to the surface of the screw shaft 43. The screw shaft 43 extends into the inner filter cartridge 36.

[0102] The rear end of the screw shaft 43 penetrates and extends out of the rear housing 17 and is connected with a fifth pulley 30.

[0103] The rotating shaft at the rear end of the side support wheel 42 penetrates and extends out of the rear housing 17 and is connected with a sixth pulley 29. A third belt 31 is connected between the sixth pulley 29 and the fifth pulley 30.

[0104] The inner filter cylinder 36 drives the side support wheels 42 and the sixth pulley 29 to rotate. The sixth pulley 29 drives the fifth pulley 30 to rotate through the third belt 31. The fifth pulley 30 drives the auger shaft 43 and the auger blades 39 to rotate inside the inner filter cylinder 36, so that the auger blades 39 smoothly push the impurities accumulated in the inner filter cylinder 36 out through the first leakage outlet 40 to the impurity area.

[0105] Meanwhile, the auger blades 39 can further stir the clear water in the inner filter cylinder 36, improving the cleaning and filtering of the impurities in the tailings wastewater by the clear water.

[0106] When the inner filter cylinder assembly rotates, it preliminarily filters and secondarily filters the impurities in the tailings wastewater, and combines with the auger assembly to stir the clear water in the water storage tank 5, transporting the impurities in the tailings wastewater to the impurity area. At this time, the scraper assembly scrapes out the impurities in the impurity area.

[0107] A first leakage outlet 40 and a second leakage outlet 41 are provided at the bottom of the rear end of the rear housing 17.

[0108] Specifically, during use, the PLC controls the water pump to introduce clear water into the arc-shaped water injection pipe 20 through the water injection nozzle 21, and the clear water flows into the water storage tank 5.

[0109] Wastewater introduction and drive component operation: The tailings wastewater is introduced into the outer housing through the feeding hopper 23. The PLC controls the cylinder 10 to work, and the cylinder 10 drives the piston rod 14 and the I-shaped seat 13 to reciprocate up and down. The I-shaped seat 13 drives the rotating rod 4 and the support arm assembly to reciprocate through the cylindrical connector 16 and the drive arm 12, and further makes the support column 9 drive the filtering mechanism to reciprocate up and down in the immersion area.

[0110] Inner filter cylinder assembly filtering process: The servo motor 22 drives the second pulley 48 to rotate, and through the first belt 38, the first pulley 47 drives the inner filter cylinder 36 to rotate. The spiral blades 37 on the outer side of the inner filter cylinder 36 rotate synchronously, pushing the larger impurities in the tailings wastewater backward and pushing them into the impurity area through the second leakage outlet 41 (preliminary filtering). At the same time, the spiral blades 37 stir the clear water, accelerating the cleaning of the impurities. Other tailings wastewater enters the cylinder along the filter holes on the surface of the inner filter cylinder 36, and the inner filter cylinder 36 rotates to clean and filter it. Part of the impurities accumulate inside the inner filter cylinder 36, and part of them gather on the inner bottom wall of the outer housing through the bottom filter holes (secondary filtering).

[0111] Support wheel assembly transmission function: When the inner filter cylinder 36 rotates, the annular limit groove 49 on its outer side generates friction with the top support wheel 44 and the side support wheels 42, driving them to rotate.

[0112] The scraper assembly and the auger assembly work: The top support wheel 44 drives the fourth pulley 27 to rotate. Through the second belt 28, the third pulley 32 drives the scraper shaft 33, the connecting arm 34 and the rubber scraper 35 to rotate. The rubber scraper 35 scrapes the impurities in the impurity area out through the discharge chute 2. The side support wheel 42 drives the sixth pulley 29 to rotate. Through the third belt 31, the fifth pulley 30 drives the auger shaft 43 and the auger blade 39 to rotate inside the inner filter cylinder 36, pushing the impurities accumulated in the inner filter cylinder 36 out to the impurity area through the first leakage outlet 40, and at the same time stirring the clear water to improve the cleaning and filtering effect.

[0113] After the filtration is completed, the sewage in the water storage tank 5 is discharged through the discharge pipe 15.

[0114] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tailings wastewater treatment device, including a filter box with an opening at the top, characterized in that: The water storage tank inside the filter tank is divided into a submerged area and an impurity area by a slope; A filtering mechanism that reciprocates up and down by a driving component is provided in the submerged area. The filtering mechanism includes an outer housing and an inner filter cylinder assembly movably connected inside the outer housing; A servo motor for driving the inner filter cylinder assembly to rotate is installed at the front of the outer housing. A support wheel assembly for supporting the inner filter cylinder assembly is provided on the inner side of the rear of the outer housing. A scraper assembly and a screw conveyor assembly driven by the support wheel assembly are provided at the rear of the outer housing; The scraper assembly is located in the impurity area, and the front end of the screw conveyor assembly extends to the lower side inside the inner filter cylinder assembly; When the inner filter cylinder assembly rotates, it preliminarily filters and secondarily filters the impurities in the tailings wastewater, and combines with the screw conveyor assembly to stir the clear water in the water storage tank, so that the impurities in the tailings wastewater are transported to the impurity area. At this time, the scraper assembly scrapes out the impurities in the impurity area.

2. The tailings wastewater treatment equipment according to claim 1, characterized in that: Legs are provided at the bottom of the filter tank. A discharge pipe is provided at the bottom of the rear end of the filter tank. A discharge groove located at the top of the impurity area is provided at the rear side of the filter tank.

3. A tailings wastewater treatment device according to claim 1, characterized in that: The driving component includes a rotating rod movably installed at the top of the side of the filter tank, a support arm assembly and a driving arm fixed on the rotating rod, a cylinder fixed at the top of the front end of the filter tank, and a lifting component connected to the output end at the bottom of the cylinder; A mounting seat is provided at the top of the side of the filter tank. The rotating rod passes through the mounting seat. The support arm assembly includes a fixed cylinder fixed on the rotating rod, a support plate fixed at the bottom of the fixed cylinder, and a support column movably connected to the bottom of the support plate. The support column supports on the bottom of the outer housing. The fixed cylinder is located in the corresponding mounting seat; The cylinder is installed on the mounting frame at the top of the front end of the filter tank. The lifting component includes a piston rod connected to the output end at the bottom of the cylinder and an I-shaped seat connected to the bottom of the piston rod; The inner end of the driving arm extends into the rear through a slot on the side of the mounting frame and is connected with a cylindrical connecting head. The cylindrical connecting head extends into a reserved slot on the side of the I-shaped seat.

4. A tailings wastewater treatment device according to claim 3, characterized in that: The outer housing includes a front housing and a rear housing assembled front and back. Water permeable through slots are evenly distributed at the bottom of the front housing and the rear housing. The flange rings on the outer side of the rear end of the front housing and the outer side of the front end of the rear housing are fixedly connected by bolts; Limiting annular grooves are provided on the outer side of the front of the front housing and the outer side of the rear of the rear housing, and the support columns are clamped into the corresponding limiting annular grooves.

5. A tailings wastewater treatment device according to claim 4, characterized in that: An arc-shaped water injection pipe is fixed on the outer side of the front of the front housing. A water injection pipe head is provided at the top of the arc-shaped water injection pipe. A feeding hopper is centrally installed at the top of the front end of the front housing.

6. The tailings wastewater treatment equipment according to claim 4, wherein: The inner filter cylinder assembly includes an inner filter cylinder and spiral blades provided on the outer side of the inner filter cylinder; The rear end of the inner filter cylinder is open, and filter holes are evenly distributed on the surface of the inner filter cylinder; A limiting ring seat is provided on the outer side of the front end of the inner filter cylinder, and a ring-shaped limiting groove is provided on the outer side of the rear end of the inner filter cylinder; A limiting disk is centrally provided at the front end of the inner filter cylinder. The limiting disk passes through and extends out of the front housing and is fixed with a first belt pulley; The servo motor is fixed at the top of the front end of the front housing. The output end of the servo motor is connected with a second belt pulley. A first belt is connected between the second belt pulley and the first belt pulley.

7. The tailings wastewater treatment equipment according to claim 6, characterized in that: The support wheel assembly includes a top support wheel movably mounted on the top inner wall at the rear end of the rear housing by a rotating shaft and side support wheels on both sides at the bottom of the rear inner wall of the rear housing. The top support wheel and the side support wheels support on the outer surface of the annular limiting groove.

8. A tailings wastewater treatment device according to claim 7, characterized in that: The scraper assembly includes a scraper shaft movably connected to the rear end of the rear housing, a third pulley fixed to the rear part of the scraper shaft, and a rubber scraper fixed to the front end of the scraper shaft by a connecting arm. The rotating shaft at the rear end of the top support wheel penetrates through and extends out of the rear housing and is then connected with a fourth pulley. A second belt is connected between the fourth pulley and the third pulley.

9. A tailings wastewater treatment device according to claim 7, characterized in that: The auger assembly includes auger shafts movably connected to both sides below the interior of the rear housing and auger blades fixed to the surfaces of the auger shafts. The auger shafts extend into the inner filter cylinder. The rear end of the auger shaft penetrates through and extends out of the rear housing and is then connected with a fifth pulley. The rotating shaft at the rear end of the side support wheel penetrates through and extends out of the rear housing and is then connected with a sixth pulley. A third belt is connected between the sixth pulley and the fifth pulley.

10. A tailings wastewater treatment device according to claim 4, characterized in that: A first leakage outlet and a second leakage outlet are provided at the bottom of the rear end of the rear housing.

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