Multistage processing device for mine wastewater and processing technology thereof

Abstract

The present application relates to wastewater treatment technical field, especially provide a kind of multistage processing equipment of mine wastewater and processing technology thereof.The multistage processing equipment of mine wastewater includes: sedimentation tank, rotating frame, multiple supports.Sedimentation tank is used to deposit impurities in mine wastewater;Rotating frame is rotatably arranged in sedimentation tank about the axis of sedimentation tank, and rotating frame is provided with sludge discharge pipe leading to the outside world;Multiple supports are arranged in the lower of rotating frame with interval, and rotate synchronously with rotating frame;Each support is provided with a suction pipe, and the bottom end of suction pipe is provided with suction port, and the top end is connected to sludge discharge pipe through connecting pipe;Each suction port is provided with openable switch board, and the opening degree of switch board and the thickness of impurities deposited in sedimentation tank are positively correlated.The scheme of the present application, by setting switch board at suction port, and making the opening degree of switch board and the thickness of impurities deposited in sedimentation tank are positively correlated, thereby improving the processing efficiency and processing quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to a multi-stage treatment device for mine wastewater and a treatment process thereof. BACKGROUND

[0002] A large amount of wastewater is generated during mine production, which needs to be treated in multiple stages, and after reaching the standard, part of it is recycled and the other part is discharged. The sedimentation tank is an important part of wastewater treatment, and a large amount of sediment will settle at the bottom of the tank during the process of treating wastewater. The existing technology usually uses a mud scraper or a mud suction machine to clean the sludge, but the mud scraper is easy to stir up the sludge in the water, reducing the sedimentation efficiency of impurities and affecting the cleaning quality. In addition, the mud suction machine and the mud scraper in the existing technology leave a gap of 10-30 cm with the bottom of the tank to prevent the equipment from being damaged, but this also causes the settled sludge to be unable to be completely cleaned, affecting the cleaning quality. In addition, the amount of sludge settled in the sedimentation tank fluctuates greatly, and during the process of mud suction by the mud suction machine, when there is too much sludge, the internal pipe is easy to be blocked; when there is too little sludge, too much water is sucked, affecting the efficiency and quality of wastewater treatment. SUMMARY

[0003] The purpose of the present application is to improve the treatment quality and reduce the risk of blockage.

[0004] In particular, the present application provides a multi-stage treatment device for mine wastewater, comprising: a sedimentation tank for sedimenting impurities in mine wastewater; a rotating frame rotatably arranged in the sedimentation tank about the axis of the sedimentation tank, and a mud discharge pipe leading to the outside is arranged on the rotating frame; a plurality of supports are arranged in the lower part of the rotating frame in intervals and rotate synchronously with the rotating frame; a mud suction pipe is arranged in each support, and the bottom end of the mud suction pipe is provided with a mud suction port, and the top end of the mud suction pipe is connected to the mud discharge pipe through a connecting pipe; an openable switch plate is arranged at each mud suction port, and the opening degree of the switch plate is positively correlated with the thickness of the sedimented impurities in the sedimentation tank.

[0005] Further, one end of the switch plate is connected with a first cable, the first cable passes through the support and is connected with the rotating frame; and a compression spring is arranged on the first cable, one end of the compression spring abuts against the support, and the other end abuts against the switch plate; the switch plate is configured to move along the end face of the mud suction port under the traction of the first cable to open or close the mud suction port.

[0006] Further, the support is hinged to the rotating frame, and the support is arranged obliquely from bottom to top towards the rotating direction of the rotating frame; the first cable is located at one end of the support towards the rotating direction of the rotating frame.

[0007] Further, the bottom end of the switch plate is provided with a plurality of support columns arranged in intervals, the support columns are fixedly connected with the support, and are used for supporting the switch plate and scraping off the impurities on the switch plate when the switch plate moves.

[0008] Further, the switch plate connected to one end of the first cable is further provided with a plurality of guide columns, the plurality of guide columns pass through the support, and the axis of the guide column is parallel to the moving direction of the switch plate.

[0009] Optionally, the support is hinged to the rotating frame, and the support is configured to adjust the rotating angle of the support according to the pressure difference between the top and bottom ends of the suction pipe, so that the height change of the suction port from the bottom surface of the sedimentation tank is positively correlated with the pressure difference between the top and bottom ends of the suction pipe.

[0010] Further, the multi-stage treatment device for mine wastewater further comprises: an induction valve arranged on the support and communicated with the suction pipe; a rotating plate is arranged in the induction valve, the rotating plate is arranged obliquely to the flow direction of the liquid in the suction pipe, and a torsional spring is arranged between the rotating plate and the side wall of the induction valve; one end of the rotating plate close to the side wall of the induction valve is fixed with a rotating shaft, both ends of the rotating shaft pass through the wall surface of the induction valve, and a rotating wheel is fixed to the rotating shaft; a second cable is arranged on the side of the support away from the rotating direction of the rotating frame, one end of the second cable is connected to the rotating frame, and the other end of the second cable is connected to the rotating wheel.

[0011] Further, a platform is arranged on the rotating frame, and a slidable sliding shaft is arranged on the platform; one end of the second cable away from the rotating wheel is connected to the sliding shaft; a guide block is arranged on the platform, and an inclined surface is formed on the side of the guide block facing the sliding shaft; the sliding shaft abuts against the inclined surface; an adjusting arm is arranged on the support, and when the support rotates away from the bottom surface of the sedimentation tank, the adjusting arm pushes the sliding shaft to slide upward along the inclined surface, so that the tension of the second cable increases.

[0012] The application further provides a mine wastewater treatment process, which adopts the multi-stage treatment device for mine wastewater.

[0013] The application has the following advantages:

[0014] The multi-stage treatment device for mine wastewater and the treatment process thereof of the application adjust the opening degree of the switch plate according to the thickness of the deposited impurities in the sedimentation tank, so that the opening degree of the suction port is adapted to the thickness of the deposited impurities in the sedimentation tank. When the impurities accumulate thicker, the opening degree of the suction port is larger, so that the suction pipe can suck more impurities, thereby improving the treatment efficiency. When the thickness of the impurities is smaller, the opening degree of the suction port is correspondingly reduced, so that the water content in the liquid sucked by the suction pipe is not too high, and the treatment quality is not affected.

[0015] Further, the multi-stage processing device for mine wastewater and the processing method thereof of the present application, the support is movable relative to the rotating frame, so that the height of the suction port from the bottom surface of the sedimentation tank is adjustable. The height between the suction port and the bottom surface of the sedimentation tank is adjusted according to the change of the pressure difference between the top and bottom ends of the suction pipe, so that the change of the height between the suction port and the bottom surface of the sedimentation tank is positively correlated with the change of the pressure difference between the top and bottom ends of the suction pipe. When the pressure difference between the top and bottom ends of the suction pipe increases (i.e., when the impurities attached to the suction pipe affect the smoothness of the liquid flow), the suction port is moved away from the bottom surface of the sedimentation tank, so that the suction port is away from the impurities and more water can be sucked. The flow of the liquid with higher water content is used to flush the suction pipe, so that the suction of the suction pipe is restored to be smooth, and the risk of blockage of the suction pipe is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Some specific embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings, which are presented by way of illustration and not of limitation. The same reference numbers in the drawings indicate the same or similar components or parts. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a multi-stage processing device for mine wastewater according to an embodiment of the present application;

[0018] Figure 2 is a structural schematic diagram of another angle of a multi-stage processing device for mine wastewater according to an embodiment of the present application;

[0019] Figure 3 is a structural schematic diagram of a rotating frame and a support according to an embodiment of the present application;

[0020] Figure 4 is Figure 3 is a schematic enlarged view of region A in FIG. 4;

[0021] Figure 5 is a structural schematic diagram of another angle of a rotating frame and a support according to an embodiment of the present application;

[0022] Figure 6 is a structural schematic diagram of a platform and a support according to an embodiment of the present application;

[0023] Figure 7 is a structural schematic diagram of another angle of a platform and a support according to an embodiment of the present application;

[0024] Figure 8 is a schematic sectional view of a platform and a support according to an embodiment of the present application;

[0025] Figure 9 is Figure 8 is a schematic enlarged view of region B in FIG. 6;

[0026] Figure 10 is Figure 8 is a schematic enlarged view of the region C in

[0027] Figure 11 is a schematic structural view of the platform and the support from another angle according to an embodiment of the present application.

[0028] wherein:

[0029] 100, sink; 200, rotating frame; 210, sludge discharge pipe; 211, sludge discharge port; 220, wastewater inlet pipe; 230, platform; 240, sliding shaft; 250, guide block; 251, inclined surface; 260, collection frame; 270, scraper; 280, walking frame; 300, support; 310, sludge suction pipe; 311, first section; 312, second section; 320, sludge suction port; 330, connecting pipe; 340, switch plate; 341, first cable; 342, compression spring; 343, guide column; 350, support column; 360, induction valve; 361, rotating plate; 362, rotating shaft; 363, rotating wheel; 370, second cable; 380, adjusting arm; 381, through slot. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely used to explain the present application and should not be used to limit the present application.

[0031] The terms "first", "second", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0032] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0033] The present application provides a multi-stage processing device for mine wastewater. Figures 1 to 11 The present application provides a multi-stage processing device for mine wastewater.

[0034] The present application provides a multi-stage processing device for mine wastewater. The multi-stage processing device for mine wastewater can generally comprise a sedimentation tank 100, a rotating frame 200, and a plurality of supports 300.

[0035] The sedimentation tank 100 is used for sedimentation of impurities in mine wastewater. The rotating frame 200 is rotatably arranged in the sedimentation tank 100 about an axis of the sedimentation tank 100, and the rotating frame 200 is provided with a sludge discharge pipe 210 leading to the outside. The plurality of supports 300 are arranged in intervals below the rotating frame 200 and rotate synchronously with the rotating frame 200. Each support 300 is provided with a sludge suction pipe 310, and the bottom end of the sludge suction pipe 310 is provided with a sludge suction port 320, and the top end of the sludge suction pipe 310 is connected to the sludge discharge pipe 210 through a connecting pipe 330. An openable switch plate 340 is arranged at each sludge suction port 320, and the opening degree of the switch plate 340 is positively correlated with the thickness of the sedimented impurities in the sedimentation tank 100.

[0036] The scheme of the present application adjusts the opening degree of the switch plate 340 according to the thickness of the sedimented impurities in the sedimentation tank 100, so that the opening degree of the sludge suction port 320 is adapted to the thickness of the sedimented impurities in the sedimentation tank 100. The thicker the impurities accumulate, the greater the opening degree of the sludge suction port 320, so that the sludge suction pipe 310 can suck more impurities, thereby improving the processing efficiency. The smaller the thickness of the impurities accumulation, the smaller the opening degree of the sludge suction port 320, thereby avoiding the sludge suction pipe 310 from sucking too much water while sucking impurities, thereby improving the processing quality.

[0037] As shown in Figure 1 , the sedimentation tank 100 is provided with a wastewater inlet pipe 220 for injecting mine wastewater to be treated into the sedimentation tank 100. As shown in Figure 2 , Figure 3 , the sludge discharge port 211 of the sludge discharge pipe 210 is preferably lower than the sludge suction port 320 of the sludge suction pipe 310, so that sludge suction is performed by siphon effect. In other embodiments, the sludge discharge pipe 210 can be connected with a pump body for suction.

[0038] In order to adjust the opening degree of the switch plate 340, in some embodiments, one end of the switch plate 340 is connected with a first cable 341, the first cable 341 is connected with the rotating frame 200 through the support 300. And a compression spring 342 is arranged on the first cable 341, one end of the compression spring 342 abuts against the support 300, and the other end abuts against the switch plate 340. The switch plate 340 is configured to move along the end face of the sludge suction port 320 under the traction of the first cable 341 to open or close the sludge suction port 320.

[0039] The scheme of the embodiment is that the first cable 341 and the compression spring 342 are arranged to make the switch plate 340 translate along the end surface of the suction port 320 under the pulling of the first cable 341 and the elastic force of the compression spring 342, so as to make the suction port 320 open or close. The structure is simple, the cost is low, and the operation is stable. The first cable 341 is preferably a steel cable.

[0040] In order to adjust the opening degree of the switch plate 340, in other embodiments, the switch plate 340 can be hinged to the support 300, and the rotation of the switch plate 340 is controlled by a motor, so as to realize the opening and closing control of the suction port 320.

[0041] In some embodiments provided with the first cable 341, the position of the first cable 341 on the rotating frame 200 is adjustable, so as to adjust the initial opening degree of the suction port 320. The initial opening degree of the suction port 320 is matched with the type of impurities. When the impurities need a larger suction force to be sucked, the initial opening degree of the suction port 320 is larger, so as to ensure the cleaning effect.

[0042] In some embodiments provided with the first cable 341, in order to realize the winding of the first cable 341, the support 300 is hinged to the rotating frame 200, and the support 300 is arranged to be inclined from bottom to top towards the rotating direction of the rotating frame 200. The first cable 341 is located at one end of the support 300 towards the rotating direction of the rotating frame 200.

[0043] The scheme of the embodiment is that the support 300 is hinged to the rotating frame 200, and the support 300 is arranged to be inclined from bottom to top towards the rotating direction of the rotating frame 200. When the rotating frame 200 rotates, the support 300 rotates relative to the rotating frame 200 under the pushing of the impurities deposited and accumulated, so as to make the first cable 341 pull the switch plate 340 to move.

[0044] The thicker the impurities deposited in the sedimentation tank 100, the greater the angle of the support 300 rotating away from the rotating frame 200 under the pushing of the impurities when the rotating frame 200 rotates, so as to make the first cable 341 be pulled for a greater distance, and thus the opening degree of the switch plate 340 is greater. When the rotating frame 200 rotates, the support 300 rotates spontaneously under the pushing of the impurities. The opening degree of the suction port 320 is matched with the thickness of the impurities, the processing efficiency is improved, the structure is simple, the cost is low, and the operation is stable.

[0045] Further, the rotatable support 300 can be set to have a small initial distance from the bottom surface of the sedimentation tank 100, or even be close to the bottom surface of the sedimentation tank 100, so as to improve the treatment quality. Meanwhile, the support 300 can be rotated under the pushing of the impurities, so as to avoid the support 300 from being stuck. Further, the rotation of the support 300 relative to the rotating frame 200 under the pushing of the impurities also makes the height between the suction port 320 and the bottom surface of the sedimentation tank 100 positively correlated with the thickness of the impurities. The greater the thickness of the impurities, the greater the rotation angle of the support 300 relative to the rotating frame 200, so that the height of the suction port 320 from the bottom surface of the sedimentation tank 100 is greater, thereby avoiding the excessive impurities in the liquid sucked by the suction port 320 from causing the suction pipe 310 to be blocked.

[0046] As shown in Figure 7 , Figure 8 , with the increase of the rotation angle of the support 300, the opening degree of the suction port 320 is continuously increased, and the size of the suction port 320 in the vertical direction is also continuously increased, so that the suction pipe 310 can suck the upper water while sucking the lower impurities, thereby reducing the risk of the suction pipe 310 being blocked.

[0047] In some embodiments provided with the first cable 341, in order to realize the winding of the first cable 341, the support 300 can be fixed relative to the rotating frame 200. The sedimentation tank 100 is provided with a sensor for detecting the thickness of the impurities. The rotating frame 200 is provided with a motor connected with the first cable 341, and the motor controls the first cable 341 to be wound or loosened according to the detection result of the sensor, so as to make the suction port 320 open or closed.

[0048] In some embodiments in which the first cable 341 is used to pull the switch plate 340 to move, the bottom end of the switch plate 340 is provided with a plurality of support columns 350 arranged at intervals, and the support columns 350 are fixedly connected with the support 300, for supporting the switch plate 340 and scraping off the impurities on the switch plate 340 when the switch plate 340 moves.

[0049] The scheme of this embodiment can not only support the switch plate 340, but also scrape off the impurities attached to the switch plate 340 when the switch plate 340 moves, so as to ensure the smooth operation of the switch plate 340.

[0050] As shown in Figure 11As shown, in some embodiments in which the switch plate 340 is moved by the first cable 341, a plurality of first cables 341 can also be arranged on the switch plate 340, and the end of the switch plate 340 connected to the first cable 341 can be provided with a plurality of guide columns 343. The plurality of guide columns 343 pass through the support 300 and are staggered with the plurality of first cables 341. The axis of the guide column 343 is parallel to the moving direction of the switch plate 340, so that the movement of the switch plate 340 is more stable and smooth. A compression spring 342 can be sleeved on the guide column 343, so that the reset of the switch plate 340 is more smooth.

[0051] In further embodiments, the position of the support 300 relative to the rotating frame 200 is adjustable, and the support 300 is configured to adjust the height of the suction port 320 from the bottom surface of the settling tank 100 according to the change in the pressure difference between the top and bottom ends of the suction pipe 310; wherein the change in the height between the suction port 320 and the bottom surface of the settling tank 100 is positively correlated with the change in the pressure difference between the top and bottom ends of the suction pipe 310.

[0052] The scheme of the present embodiments provides that the support 300 is movable relative to the rotating frame 200, so that the height of the suction port 320 from the bottom surface of the settling tank 100 is adjustable. The height between the suction port 320 and the bottom surface of the settling tank 100 is adjusted according to the change in the pressure difference between the top and bottom ends of the suction pipe 310, so that the change in the height between the suction port 320 and the bottom surface of the settling tank 100 is positively correlated with the change in the pressure difference between the top and bottom ends of the suction pipe 310. When the pressure at the top and bottom ends of the suction pipe 310 increases (i.e. when blockage occurs in the suction pipe 310, causing poor flow of liquid), the support 300 is controlled to move, so that the height between the suction port 320 and the bottom surface of the settling tank 100 increases, and the suction port 320 moves away from the impurities, thereby reducing the content of impurities in the liquid sucked into the suction pipe 310 and increasing the water content. The flow of liquid with higher water content washes away the impurities attached to the suction pipe 310, thereby restoring the smoothness of the suction of the suction pipe 310 and reducing the risk of blockage of the suction pipe 310.

[0053] In some preferred embodiments, the top and bottom ends of the suction pipe 310 can be respectively provided with pressure sensors for detecting the change in the liquid pressure at the top and bottom ends of the suction pipe 310.

[0054] In order to make the position of the support 300 relative to the rotating frame 200 adjustable, in some embodiments, the support 300 is hinged to the rotating frame 200, and the support 300 is configured to adjust the rotation angle of the support 300 according to the change in the pressure difference between the top and bottom ends of the suction pipe 310, so that the change in the height of the suction port 320 from the bottom surface of the settling tank 100 is adapted to the change in the pressure difference between the top and bottom ends of the suction pipe 310.

[0055] The scheme of the embodiment sets the support 300 and the rotating frame 200 in hinged connection, and adjusts the height of the suction port 320 from the bottom surface of the sedimentation tank 100 by rotating the support 300, so that the structure is simple, and the operation is stable and reliable. In addition, the rotating mode of the support 300 not only makes the adjustable range of the suction port 320 larger, but also increases the height between the suction port 320 and the bottom surface of the sedimentation tank 100 by rotating the support 300 by a smaller angle, so that the adjustment is more sensitive and convenient.

[0056] In order to adjust the position of the support 300 relative to the rotating frame 200, in other embodiments, the support 300 can adopt a telescopic structure, the part close to the rotating frame 200 is fixedly connected with the rotating frame 200, and the part away from the rotating frame 200 is telescopic, so that the height of the suction port 320 from the bottom surface of the sedimentation tank 100 is adjustable.

[0057] In some embodiments in which the support 300 is hinged with the rotating frame 200, the multi-stage treatment device for mine wastewater can generally further comprise: an inductive valve 360 and a second cable 370. The inductive valve 360 is arranged on the support 300 and is in communication with the suction pipe 310. A rotating plate 361 is arranged in the inductive valve 360, the rotating plate 361 is arranged obliquely to the flow direction of the liquid in the suction pipe 310, and a torsion spring is arranged between the rotating plate 361 and the side wall of the inductive valve 360. One end of the rotating plate 361 close to the side wall of the inductive valve 360 is fixed with a rotating shaft 362, both ends of the rotating shaft 362 pass through the wall surface of the inductive valve 360, and a rotating wheel 363 is fixed. The second cable 370 is arranged on the side of the support 300 away from the rotating direction of the rotating frame 200, one end is connected with the rotating frame 200, and the other end is connected with the rotating wheel 363.

[0058] The scheme of the embodiment is that the sensing valve 360 is arranged in communication with the suction pipe 310, and the rotating plate 361 is arranged in the sensing valve 360. The rotation of the rotating plate 361 is driven by the liquid flowing in the suction pipe 310, so that the rotation of the rotating plate 361 is related to the flow of the liquid flowing in the suction pipe 310. When the impurities attached in the suction pipe 310 are too much to cause the liquid to flow not smoothly, the rotating plate 361 is subjected to a smaller pushing force of the liquid, and under the elastic force of the torsion spring, the rotating plate 361 rotates towards the direction away from the side wall of the sensing valve 360, and then drives the rotating wheel 363 to rotate synchronously through the rotating shaft 362, so that the second cable 370 is reeled. The reeling of the second cable 370 drives the rotation of the support 300, so that the suction port 320 is away from the bottom surface of the sedimentation tank 100, thereby increasing the water content of the liquid sucked into the suction pipe 310, and further using the flushing of the liquid with higher water content to restore the suction pipe 310 to normal. After the liquid flowing in the suction pipe 310 flows smoothly, the rotating plate 361 is pressed against the elastic force of the torsion spring and close to the side wall of the sensing valve 360 under the pushing of the flowing liquid, thereby driving the rotating wheel 363 to rotate and the second cable 370 to be unwound. The unwinding of the second cable 370 drives the rotation of the support 300 under the action of gravity, so that the suction port 320 is close to the bottom surface of the sedimentation tank 100, thereby causing the suction pipe 310 to suck more impurities and improve the processing efficiency. Preferably, the second cable 370 is a steel cable.

[0059] As shown in Figure 9 The suction pipe 310 includes a first section 311 and a second section 312. The sensing valve 360 is arranged between the first section 311 and the second section 312, and the top and bottom ends thereof are in communication with the first section 311 and the second section 312, respectively. One end of the torsion spring (not shown in the figure) is connected with the rotating plate 361, and the other end is connected with the side wall of the sensing valve 360.

[0060] In other embodiments in which the support 300 is hinged with the rotating frame 200, a motor can be arranged on the rotating frame 200, and the hinge point between the support 300 and the rotating frame 200 is connected with the motor, so that the support 300 is directly driven to rotate by the motor.

[0061] In further embodiments, the rotating frame 200 is provided with a platform 230, and the platform 230 is provided with a slidable sliding shaft 240. One end of the second cable 370 away from the rotating wheel 363 is connected with the sliding shaft 240. The platform 230 is provided with a guide block 250, and an inclined surface 251 is formed on the side of the guide block 250 facing the sliding shaft 240. The sliding shaft 240 abuts against the inclined surface 251. The support 300 is provided with an adjusting arm 380. When the support 300 rotates away from the bottom surface of the sedimentation tank 100, the adjusting arm 380 pushes the sliding shaft 240 to slide upwards along the inclined surface 251, so that the tension of the second cable 370 is increased.

[0062] AsFigure 7 As shown, one end of the adjusting arm 380 is fixedly connected to the bracket 300. When the bracket 300 rotates relative to the rotating frame 200, it drives the adjusting arm 380 to rotate synchronously. An arc-shaped through groove 381 is formed on the adjusting arm 380, and the sliding shaft 240 passes through the through groove 381.

[0063] In this embodiment, the end of the second cable 370 furthest from the turntable 363 is connected to a slidable sliding shaft 240. An adjusting arm 380 pushes the sliding shaft 240 upwards along the inclined surface 251 when the support 300 rotates, thus ensuring that the second cable 370 remains taut even after the support 300 rotates. Even when the thickness of the impurities deposited in the settling tank 100 changes, causing the support 300 to rotate relative to the rotating frame 200, the rotating plate 361 can still rotate according to the pressure changes in the suction pipe 310. This rotation is then actuated by the second cable 370, reducing the risk of blockage in the suction pipe 310.

[0064] Furthermore, in this embodiment, by setting a guide block 250 with an inclined surface 251 on the platform 230, when the support 300 rotates relative to the rotating frame 200, the sliding shaft 240 slides along the inclined surface 251 of the guide block 250. This results in a greater tension force on the second cable 370 when the rotation angle of the support 300 is greater (i.e., when the sludge suction port 320 is closer to the rotating frame 200). As the thickness of the impurities deposited in the sedimentation tank 100 increases, and the support 300 rotates to move the sludge suction port 320 away from the bottom surface of the sedimentation tank 100, the tension force on the second cable 370 increases with the greater rotation angle of the support 300. This causes the support 300 to rotate further, resulting in a larger rotation angle, thereby preventing excessive impurities from being sucked into the sludge suction pipe 310 and reducing the risk of blockage.

[0065] like Figure 1 As shown, the settling tank 100 may also be equipped with a collection frame 260 for discharging suspended impurities, and a rotating scraper 270. When the scraper 270 rotates, it pushes the suspended impurities on the water surface into the collection frame 260 and then discharges them. The settling tank 100 may also be equipped with a traveling frame 280 fixed to the settling tank 100 for easy use and maintenance of the equipment.

[0066] The specific working process of the multi-stage mine wastewater treatment equipment provided by the present invention will be described in conjunction with the above embodiments: taking the embodiment in which the support 300 and the rotating frame 200 are hinged as an example:

[0067] Wastewater inlet pipe 220 injects mine wastewater into sedimentation tank 100, where impurities in the mine wastewater settle and accumulate.

[0068] The rotating frame 200 rotates and the support 300 rotates synchronously. The suction pipe 310 sucks the liquid at the bottom of the sink 100 and discharges the liquid through the communication pipe and the discharge pipe 210.

[0069] During the rotation of the rotating frame 200, the support 300 rotates relative to the rotating frame 200 under the thrust of the impurities. When the impurities deposited in the sink 100 are thick, the support 300 rotates towards the rotating frame 200 under the thrust of the impurities, so that the first cable 341 is stretched, and the switch plate 340 is pulled, so that the opening degree of the suction port 320 is increased, and the processing efficiency is improved. When the impurities deposited in the sink 100 become thin, the support 300 rotates away from the rotating frame 200 under the action of gravity, so that the suction port 320 is closer to the impurities. At the same time, the first cable 341 is relaxed, so that the switch plate 340 is pushed under the action of the compression spring 342, so that the opening degree of the suction port 320 is reduced, so as to avoid that the liquid sucked by the suction port 320 has too high water content, which affects the processing quality.

[0070] During the suction of the liquid by the suction pipe 310, when the liquid in the suction pipe 310 flows unsmoothly, the rotating plate 361 is subjected to a smaller thrust of the liquid, and under the elastic force of the torsion spring, the rotating plate 361 rotates away from the side wall of the inductive valve 360, and then drives the rotating wheel 363 to rotate synchronously through the rotating shaft 362, so that the second cable 370 is wound. The winding of the second cable 370 drives the rotation of the support 300, so that the suction port 320 is away from the bottom surface of the sink 100, so that the water content of the liquid sucked by the suction pipe 310 is increased, and then the liquid with higher water content is used to flush the suction pipe 310 to restore the normal state. At the same time, the upward rotation of the support 300 also stretches the first cable 341, so that the opening degree of the suction port 320 is increased, so that the suction force of the suction pipe 310 is increased, and the flushing effect of the suction pipe 310 is improved.

[0071] After the liquid in the suction pipe 310 flows smoothly, under the thrust of the flowing liquid, the rotating plate 361 resists the elastic force of the torsion spring and approaches the side wall of the inductive valve 360, thereby driving the rotating wheel 363 to rotate, so that the second cable 370 is unwound. The unwinding of the second cable 370 drives the rotation of the support 300 under the action of gravity, so that the suction port 320 is close to the bottom surface of the sink 100, so that the suction pipe 310 sucks more impurities, and the processing efficiency is improved. At the same time, the downward rotation of the support 300 also relaxes the first cable 341, so that the opening degree of the suction port 320 is reduced, so that the water content in the liquid sucked by the suction pipe 310 is reduced, and the processing quality is ensured.

[0072] The embodiment also provides a mine wastewater treatment process, which adopts the multi-stage mine wastewater treatment device of any one of the above, and comprises the following steps: injecting the mine wastewater to be treated into the sedimentation tank 100; controlling the rotary frame 200 to rotate, and adjusting the opening degree of the opening and closing plate 340 at the bottom end of the suction pipe 310 according to the thickness of the impurities deposited in the sedimentation tank 100, so that the impurities accumulated on the bottom surface of the sedimentation tank 100 are sucked into the suction pipe 310 and discharged from the sludge discharge pipe 210 through the connecting pipe 330; wherein the opening degree of the opening and closing plate 340 and the thickness of the impurities deposited in the sedimentation tank 100 are positively correlated.

[0073] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present disclosure.

[0074] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, however, it should not be understood as the limitation on the scope of the present application. It should be pointed out that, for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A multi-stage processing apparatus for mine wastewater, characterized by, The utility model relates to a mine wastewater treatment device, including: a sedimentation tank for precipitating impurities in mine wastewater; a rotating frame arranged rotatably around the axis of the sedimentation tank in the sedimentation tank, and a sludge discharge pipe leading to the outside world is arranged on the rotating frame; a plurality of supports are arranged at intervals below the rotating frame and rotate synchronously with the rotating frame; each of the supports is provided with a suction pipe, the bottom end of the suction pipe is provided with a suction port, and the top end of the suction pipe is connected to the sludge discharge pipe through a connecting pipe; an openable switch plate is arranged at each of the suction ports, and the opening degree of the switch plate is positively correlated with the thickness of the precipitated impurities in the sedimentation tank; one end of the switch plate is connected to a first cable, the first cable is connected to the rotating frame through the support, and a compression spring is arranged on the first cable, one end of the compression spring abuts against the support, and the other end of the compression spring abuts against the switch plate; the switch plate is configured to move along the end surface of the suction port under the traction of the first cable to open or close the suction port; the support is hinged to the rotating frame, and the support is configured to adjust the rotation angle of the support according to the pressure difference between the top and bottom ends of the suction pipe, so that the change in the height of the suction port from the bottom surface of the sedimentation tank is positively correlated with the change in the pressure difference between the top and bottom ends of the suction pipe.

2. The multi-stage treatment apparatus for mine wastewater according to claim 1, characterized by, the support is hinged to the rotating frame, and the support is arranged obliquely from bottom to top towards the rotation direction of the rotating frame; one end of the first cable is located towards the rotation direction of the rotating frame.

3. The multi-stage mine wastewater treatment apparatus according to claim 1, characterized by, the bottom end of the switch plate is provided with a plurality of support columns arranged at intervals, the support columns are fixedly connected to the support, and the support columns are used for supporting the switch plate and scraping off impurities on the switch plate when the switch plate moves.

4. The multi-stage mine wastewater treatment apparatus according to claim 1, characterized by, one end of the switch plate connected to the first cable is also provided with a plurality of guide columns, the guide columns pass through the support, and the axis of the guide columns is parallel to the moving direction of the switch plate.

5. The multi-stage mine wastewater treatment apparatus according to claim 1, characterized by, Further including: an induction valve arranged on the support and communicating with the suction pipe; a rotating plate is arranged in the induction valve, the rotating plate is arranged obliquely to the flow direction of the liquid in the suction pipe, a torsion spring is arranged between the rotating plate and the side wall of the induction valve; one end of the rotating plate close to the side wall of the induction valve is fixedly connected to a rotating shaft, and the two ends of the rotating shaft pass through the wall surface of the induction valve and are fixedly connected to a rotating wheel; a second cable is arranged on the side of the support away from the rotation direction of the rotating frame, one end of the second cable is connected to the rotating frame, and the other end of the second cable is connected to the rotating wheel.

6. The multi-stage treatment apparatus for mine wastewater according to claim 5, characterized by, a platform is arranged on the rotating frame, a sliding shaft is slidably arranged on the platform; one end of the second cable away from the rotating wheel is connected to the sliding shaft; a guide block is arranged on the platform, one side of the guide block towards the sliding shaft is formed with an inclined surface; the sliding shaft abuts against the inclined surface; an adjusting arm is arranged on the support, when the support rotates away from the bottom surface of the sedimentation tank, the adjusting arm pushes the sliding shaft to slide upwards along the inclined surface, so that the tension of the second cable increases.

7. A mine wastewater treatment process, characterised in that, The multistage processing device for mine wastewater according to any one of claims 1 to 6 comprises the following steps: injecting the mine wastewater to be processed into a sedimentation tank; controlling the rotation of the rotating frame and adjusting the opening degree of the opening and closing plate at the bottom end of the suction pipe according to the thickness of the impurities deposited in the sedimentation tank, so that the impurities accumulated on the bottom surface of the sedimentation tank are sucked into the suction pipe and discharged from the sludge discharge pipe through the connecting pipe; wherein the opening degree of the opening and closing plate and the thickness of the impurities deposited in the sedimentation tank are positively correlated.

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