A copper-containing wastewater treatment device and method

Abstract

The present invention belongs to the technical field of wastewater treatment, and specifically, is a copper-containing wastewater treatment device and method, including a sedimentation tank; a cavity is provided inside the sedimentation tank, a motor is fixedly connected to the bottom of the cavity, a power shaft is provided at the output end of the motor, a first cylinder is rotatably connected to the top of the cavity through a circular groove, an auger piece is fixedly connected to the power shaft, and the auger piece is in contact with the inner wall of the first cylinder, an L cylinder is rotatably connected to the top of the first cylinder, and one end of the L cylinder is tilted downward, and the top of the sedimentation tank is fixedly connected to the end of the L cylinder that is set downward through a fixed block; the present invention divides the sedimentation tank into upper and lower layers, so that the sedimentation efficiency is increased under the same floor area, and at the same time, a stirring plate and an L-shaped scraper are linked by a power gear, and a sealing ring, a lifting blocking ring and other components are cooperated to achieve uniform diffusion of the precipitant, efficient synchronization of precipitation and liquid treatment, and flexible regulation and control to improve the overall sedimentation efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, in particular to a device and method for treating copper-containing wastewater. Background Art

[0002] The treatment of copper-containing wastewater is the process of purifying copper-containing industrial wastewater. Copper-containing wastewater mainly comes from industries such as electroplating, electronics, and copper mining. If it is directly discharged, it will cause serious pollution to the environment. There are various treatment methods. The most common ones are chemical precipitation, which adds precipitants such as sodium sulfide and sodium hydroxide to precipitate copper ions and separate them; the ion exchange method uses ion exchange resins to adsorb copper ions; membrane separation technology relies on semipermeable membranes to intercept copper ions. In addition, there are electrolysis methods, etc. The treated water can meet the discharge standard or reuse standard, reducing the harm to water bodies and soil. At the same time, the recovered copper resources can be reused to achieve a win-win situation of economic and environmental benefits.

[0003] In the prior art, there are the following problems: first, due to the requirements of the site or processing cost, the height and radius of the sedimentation tank are generally set proportionally, and the distance for the sediment to reach the bottom of the tank is fixed, but a shorter sedimentation bottoming distance will increase the sedimentation efficiency;

[0004] Secondly, in the prior art, the upper layer of water is generally extracted first and then the bottom sediment is cleaned. The extraction of the upper layer of water and the cleaning of the sediment cannot be performed at the same time, which is time-consuming. For this reason, the present invention provides a copper-containing wastewater treatment device and method. Summary of the invention

[0005] In order to make up for the shortcomings of the existing technology, due to the requirements of the site or treatment cost, the height and radius of the sedimentation tank are generally set in proportion. The distance for the sediment to reach the bottom of the tank is fixed, but a shorter sedimentation bottoming distance will increase the sedimentation efficiency; in the existing technology, the upper layer of water is generally extracted first and then the bottom sediment is cleaned. The extraction of the upper layer of water and the cleaning of the sediment cannot be carried out at the same time, which is quite time-consuming.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a copper-containing wastewater treatment device and method described in the present invention include a sedimentation tank; a cavity is provided inside the sedimentation tank, a motor is fixedly connected to the bottom of the cavity, a power shaft is provided at the output end of the motor, a first cylinder is rotatably connected to the top of the cavity through a circular groove, an auger piece is fixedly connected to the power shaft, and the auger piece is in contact with the inner wall of the first cylinder, an L cylinder is rotatably connected to the top of the first cylinder, and one end of the L cylinder is tilted downward, and the top of the sedimentation tank is fixedly connected to one end of the L cylinder that is set downward through a fixed block; a fixing ring is fixedly connected to the inner wall of the sedimentation tank, a semi-ring shell is fixedly connected to the inner wall of the fixing ring, and the lower edge of the semi-ring shell at the center is fixedly connected to the inner wall of the semi-ring shell. The end is rotatably connected with the first cylinder, a sealing ring is provided inside the semi-annular shell, and the first cylinder is fixedly connected to the sealing ring through an L ring, and the outer circular wall of the sealing ring is rotatably connected to the inner wall of the fixed ring; the cross-section of the bottom of the sedimentation tank is conical, and the fixed ring, the semi-annular shell and the sealing ring together constitute a circular ring with a conical cross-section, and the cones are all set downward; a transmission member is provided in the first cylinder, and the rotation of the first cylinder is controlled by the transmission member; a power gear is fixedly connected to the power shaft, a gear ring is fixedly connected to the inner wall of the cavity, and a scraping and stirring member is provided in the sedimentation tank; a pair of conveying grooves are opened on the first cylinder, and the conveying grooves correspond to the bottom of the sedimentation tank and the position of the sealing ring respectively, and a sealing member is provided at the conveying groove.

[0007] Preferably, the scraping and stirring member includes a lower ring block; the bottom of the sedimentation tank is rotatably connected to the lower ring block through a lower ring groove, the fixed ring is rotatably connected to the upper ring block through an upper ring groove, and the bottom of the cavity is rotatably connected to the bottom ring block through a bottom ring groove, the upper ring block and the lower ring block are both rotatably connected to a rotating rod through a through groove, and the bottom of the rotating rod is rotatably connected to the bottom ring block, the rotating rod is fixedly connected to a transmission gear, and the transmission gear is respectively meshed with the gear ring and the power gear; a pair of L-shaped scrapers are fixedly connected to the top of the upper ring block and the lower ring block, and a group of L-shaped scrapers are respectively in contact with the bottom of the sedimentation tank, the fixed ring, and the top and side walls of the semi-ring shell; a group of stirring plates are fixedly connected to the rotating rods of the upper and lower parts of the fixed ring; an inner ring box is provided on the inner ring wall of the sedimentation tank, and the inner ring box and the stirring plate are positioned correspondingly, a group of spray holes are provided on the inner ring box, and a pair of drug inlet pipes are provided outside the sedimentation tank, and the drug inlet pipes are communicated with the inner ring box.

[0008] Preferably, the transmission member includes a column groove; a column groove is opened in the first cylinder, a group of right triangular blocks are fixedly connected to the power shaft, a group of square grooves are opened on the inner wall of the column groove, a group of square groove side walls are fixedly connected with straight trapezoidal blocks through springs, and the inclined surfaces of the right triangular blocks and the straight trapezoidal blocks are corresponding to each other.

[0009] Preferably, the sealing member includes a circular plate; a circular plate is sleeved on the outer circular wall of the first cylinder, and the top of the circular plate is rotatably connected to the inner ring block and the outer ring block through the inner ring groove and the outer ring groove respectively; a pair of lifting blocking rings are slidably connected to the outer circular wall of the first cylinder, and the position of the lifting blocking rings and the conveying groove corresponds to each other, the lifting blocking rings are located in the L ring, a pair of connecting columns are fixedly connected to the top of the inner ring block, and the top of the connecting columns passes through the sedimentation tank and is fixedly connected to the lifting blocking ring at the proximal end, the top of the lifting blocking ring at the proximal end of the connecting column is rotatably connected to a rotating ring, the top of the rotating ring is fixedly connected to a vertical rod, and the top of the vertical rod passes through the sealing ring and is fixedly connected to the lifting blocking ring; a pair of electric push rods are fixedly connected to the top of the cavity through a pair of placement grooves, and the telescopic ends of the electric push rods are fixedly connected to the top of the outer ring block.

[0010] Preferably, the rotating rod is composed of a top rod, a bottom rod and a connecting rod, an upper circular groove is provided at the bottom of the top rod, a lower circular groove is provided at the top of the bottom rod, the connecting rod is slidably connected between the upper circular groove and the lower circular groove, a group of limit blocks are fixedly connected to the inner walls of the upper circular groove and the lower circular groove, a limit groove is provided on the outer circular wall of the connecting block, and the limit block is slidably connected in the limit groove, and the top of the circular plate is rotatably connected to the connecting rod through the rotating groove.

[0011] Preferably, the top of the circular plate is slidably connected to a sliding block through a sliding groove, the top of the sliding block is fixedly connected to a square box, the bottom of the square box is fixedly connected to the top of the circular plate through a spring, the side wall of the square box is slidably connected to a sliding plate, the side wall of the sliding plate is fixedly connected to a sliding plug through a spring, and the sliding plug and the limit groove are adapted, the top of the circular plate is slidably connected to a lifting plate through a square sliding groove, the side wall of the sliding plate is fixedly connected to a displacement rod, and the displacement rod passes through the square box and the lifting plate, the side wall of the square box is fixedly connected to the side wall of the lifting plate through a spring, the top of the circular plate is fixedly connected to an extrusion block, and the cross-section of the extrusion block is a right-angled trapezoid, and the inclined surface of the extrusion block corresponds to the position of the end of the displacement rod.

[0012] Preferably, a position sensor is provided at the top of the cavity, and the positions of the position sensor and the circular plate correspond.

[0013] A method for treating copper-containing wastewater, applicable to the above-mentioned copper-containing wastewater treatment device, comprises the following steps:

[0014] S1: First, the plugging ring is controlled to rotate by the motor and the transmission parts to separate the wastewater into two parts, the upper and lower parts, so as to reduce the sedimentation distance of the sediment, and then the precipitant and flocculant are injected into the wastewater in the upper and lower parts of the sedimentation tank through the inner ring box;

[0015] S2: Then the motor drives the L-shaped scraper and the stirring plate to rotate slowly to stir the precipitant injected into the sedimentation tank so that it is evenly mixed with the wastewater;

[0016] S3: Finally, after sedimentation, the electric push rod drives the circular plate and the lifting ring to rise at the same time, and the power shaft drives the dragon plate to rotate to transport the sediment out of the sedimentation tank.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A copper-containing wastewater treatment device and method described in the present invention drives a power shaft and an auger blade to rotate in a first cylinder through a motor to transport sediment. The first cylinder is controlled to rotate by a transmission member. When the first cylinder rotates, it drives a blocking ring to rotate out of a semi-annular shell, so that the semi-annular shell, the blocking ring and the fixed ring form a closed conical partition disposed downward, thereby dividing the sedimentation tank into two upper and lower sedimentation parts, so that in sedimentation tanks with the same diameter, the distance from the bottom of the sediment is shortened, thereby increasing the sedimentation efficiency.

[0019] 2. The copper-containing wastewater treatment device and method described in the present invention, through the rotation of the stirring plate, the precipitant is sprayed out through the spray holes on the inner ring box, and is driven to diffuse by the stirring plate at a relatively large distance, thereby avoiding the problem of uneven diffusion of the precipitant. Through the above design, the sedimentation tank can treat different types of wastewater, and is suitable for more types of wastewater.

[0020] 3. The copper-containing wastewater treatment device and method described in the present invention drives the circular plate and the connecting rod to rise by an electric push rod. At the same time, the limit block on the connecting rod is separated from the limit groove in the bottom rod, but the bottom end of the connecting rod is still in the bottom rod, so that when the sediment is scraped off the bottom of the sedimentation tank, the rotation of the stirring plate is prevented from driving the liquid to flow excessively, affecting the sediment to gather in the low-lying area in the center.

[0021] 4. The copper-containing wastewater treatment device and method described in the present invention, when the sliding block does not correspond to the limit groove position, the sliding block is still in contact with the connecting rod. When the stirring plate rotates under the action of the liquid, the sliding block can be matched with the limit groove. The elastic setting of the side wall of the sliding block can prevent the electric push rod from rising a fixed distance, so that when the lifting and lowering blocking ring rises to a fixed position, the sliding block cannot be inserted because the sliding block does not correspond to the limit groove position, resulting in the sliding block being squeezed and the workpiece being deformed. By limiting the rotation of the connecting rod and then limiting the rotation of the rotating rod, it can be avoided that the stirring plate is affected by the liquid when moving, resulting in self-rotation, causing fluctuations in the wastewater and affecting the precipitation of the sediment.

[0022] 5. The copper-containing wastewater treatment device and method described in the present invention can monitor the rising distance of the circular plate through the establishment of a position sensor, and then control the lifting and lowering blocking ring to be in a state of not blocking the feed trough, and the sliding block to be in a position to limit the rotation of the rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 is a front cross-sectional view of the present invention;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0028] Figure 5 is a side cross-sectional view of the present invention;

[0029] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0030] Figure 7 It is a three-dimensional diagram of the internal structure of the sedimentation tank in the present invention;

[0031] Figure 8 It is a top cross-sectional view in the present invention;

[0032] Fig. 9 yes Figure 8 Enlarged view of point D in the middle;

[0033] Fig.10 yes Figure 8 Enlarged view of point E in the middle;

[0034] Fig.11 It is a three-dimensional diagram and an exploded diagram of some structures at the plugging ring;

[0035] Fig.12 This is the internal front view sectional exploded view of the rotating rod.

[0036] In the figure: 1, sedimentation tank; 11, cavity; 12, motor; 13, power shaft; 14, first cylinder; 15, auger piece; 16, L cylinder; 17, fixed ring; 18, half ring shell; 19, plugging ring; 191, L ring; 192, power gear; 193, gear ring; 194, conveying trough; 2, lower ring block; 21, upper ring block; 22, rotating rod; 23, bottom ring block; 24, transmission gear; 25, L-shaped scraper; 26, stirring plate; 27, inner ring box; 28, medicine inlet pipe; 3. Column slot; 31. Straight triangle block; 32. Square slot; 33. Straight trapezoidal block; 4. Round plate; 41. Inner ring block; 42. Outer ring block; 43. Lifting and lowering ring; 44. Connecting column; 45. Electric push rod; 5. Top rod; 51. Bottom rod; 52. Connecting rod; 53. Upper circular groove; 54. Lower circular groove; 55. Limit block; 56. Limit groove; 6. Sliding block; 61. Square box; 62. Sliding plate; 63. Sliding plug block; 64. Lifting and lowering plate; 65. Displacement rod; 66. Extrusion block. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] Embodiment 1

[0039] like Figures 1 to 12As shown, a copper-containing wastewater treatment device and method according to an embodiment of the present invention comprises a sedimentation tank 1; a cavity 11 is provided inside the sedimentation tank 1, a motor 12 is fixedly connected to the bottom of the cavity 11, a power shaft 13 is provided at the output end of the motor 12, a first cylinder 14 is rotatably connected to the top of the cavity 11 through a circular groove, an auger piece 15 is fixedly connected to the power shaft 13, and the auger piece 15 is in contact with the inner wall of the first cylinder 14, an L cylinder 16 is rotatably connected to the top of the first cylinder 14, and one end of the L cylinder 16 is tilted downward, so The top of the sedimentation tank 1 is fixedly connected to one end of the L-tube 16 which is set downward through a fixed block; the inner wall of the sedimentation tank 1 is fixedly connected to a fixed ring 17, the inner wall of the fixed ring 17 is fixedly connected to a semi-ring shell 18, and the lower end of the center edge of the semi-ring shell 18 is rotatably connected to the first tube 14, and a blocking ring 19 is provided inside the semi-ring shell 18, and the first tube 14 is fixedly connected to the blocking ring 19 through an L ring 191, and the outer wall of the blocking ring 19 is rotatably connected to the inner wall of the fixed ring 17; the bottom cross-section of the sedimentation tank 1 is conical, and the fixed ring 17 and the semi-ring shell 18 and the blocking ring 19 together form a circular ring with a conical cross-section, and the cones are both set downward; a transmission member is provided in the first cylinder 14, and the rotation of the first cylinder 14 is controlled by the transmission member; a power gear 192 is fixedly connected to the power shaft 13, a gear ring 193 is fixedly connected to the inner wall of the cavity 11, and a scraping stirring member is provided in the sedimentation tank 1; a pair of conveying grooves 194 are opened on the first cylinder 14, and the conveying grooves 194 correspond to the bottom of the sedimentation tank 1 and the position of the blocking ring 19 respectively, and a blocking member is provided at the conveying groove 194 When working, the motor 12 drives the power shaft 13 and the auger blades to rotate in the first cylinder 14, so as to transport the sediment. The first cylinder 14 is controlled to rotate by the transmission member. When the first cylinder 14 rotates, the blocking ring 19 is driven to rotate out of the semi-annular shell 18, so that the semi-annular shell 18, the blocking ring 19 and the fixing ring 17 form a closed conical downwardly arranged partition, thereby dividing the sedimentation tank 1 into two upper and lower sedimentation parts, so that the sedimentation tank 1 with the same diameter has a shorter distance from the bottom of the sedimentation tank 1, thereby increasing the sedimentation efficiency.

[0040] Further, such as Figure 7 As shown, by setting the fan-shaped angle of the semi-annular shell 18 to exceed 180 degrees, the sealing ring 19 can be rotated to any position, and part of its volume is located in the semi-annular shell 18, so that the sealing effect of the upper and lower layers of wastewater is better; at the same time, a balanced water pressure structure is set outside the precipitant (this is a prior art and can be achieved in many ways, so no further details are given here) to balance the water pressure of the upper and lower parts of the fixed ring 17; a through groove is opened on the top of the L cylinder 16, so that the sediment entering the L cylinder 16 can be pushed by external force (the accumulated sediment can be pushed manually or by using a pushing device) to avoid accumulation, and a filtering structure is set at the outlet of the L cylinder to separate the treated wastewater and sediment.

[0041] The scraper and stirrer comprises a lower ring block 2; the bottom of the sedimentation tank 1 is rotatably connected to the lower ring block 2 through the lower ring groove, the fixed ring 17 is rotatably connected to the upper ring block 21 through the upper ring groove, the bottom of the cavity 11 is rotatably connected to the bottom ring block 23 through the bottom ring groove, the upper ring block 21 and the lower ring block 2 are both rotatably connected to the rotating rod 22 through the through groove, and the bottom of the rotating rod 22 is rotatably connected to the bottom ring block 23, the rotating rod 22 is fixedly connected to the transmission gear 24, and the transmission gear 24 is respectively meshed with the gear ring 193 and the power gear 192; the upper ring block A pair of L-shaped scrapers 25 are fixedly connected to the top of the lower ring block 21 and the lower ring block 2, and a group of L-shaped scrapers 25 are respectively in contact with the bottom of the sedimentation tank 1, the fixed ring 17, and the top and side wall of the semi-ring shell 18; a group of stirring plates 26 are fixedly connected to the rotating rods 22 of the upper and lower parts of the fixed ring 17; an inner ring box 27 is provided on the inner ring wall of the sedimentation tank 1, and the positions of the inner ring box 27 and the stirring plates 26 correspond to each other, and a group of spray holes are provided on the inner ring box 27, and a pair of drug inlet pipes 28 are provided outside the sedimentation tank 1, and the drug inlet pipes 28 are connected to the inner ring box 27; when working, the drug inlet pipes 28 are connected to the inner ring box 27 by the movement. The power shaft 13 drives the power gear 192 to rotate, and the transmission gear 24, the gear ring 193, and the power gear 192 are all meshed, so that the transmission gear 24 drives the rotating rod 22 and the L-shaped scraper 25 to rotate with the first cylinder 14 as the axis, and at the same time the upper ring block 21 and the lower ring block 2 are rotated, and the rotating rod 22 drives the stirring plate 26 to rotate, and the precipitant is sprayed out through the spraying hole on the inner ring box 27, and is driven to diffuse by the stirring plate 26 with a relatively large distance, thereby avoiding the problem of uneven diffusion of the precipitant, and the stirring plate 26 is close to the outer ring of the sedimentation tank 1, and the sediment is accumulated downward. At the bottom end of the conical structure, that is, the proximal end of the first barrel 14, the stirring plate 26 is far away from the accumulation place where the sediment slides and settles, so that the operation of the stirring plate 26 and the L-shaped scraper 25 does not affect the extraction of liquid from the upper and lower parts of the sedimentation tank 1 and the simultaneous transportation and scraping of the sediment, thereby increasing the efficiency of sediment scraping and transportation and liquid discharge. Among them, the sediment on the top of the sealing ring 19, when it rotates, its top contacts the side wall of the semi-annular shell 18, and is scraped off by the semi-annular shell 18, and as the conical angle is established, it falls straight to the proximal end of the first barrel 14 and is transported out.

[0042] The transmission member includes a column groove 3; a column groove 3 is opened in the first cylinder 14, a group of straight triangular blocks 31 are fixedly connected to the power shaft 13, and a group of square grooves 32 are opened on the inner wall of the column groove 3, and a group of side walls of the square grooves 32 are fixedly connected with straight trapezoidal blocks 33 through springs, and the inclined surfaces of the straight triangular blocks 31 and the straight trapezoidal blocks 33 correspond to each other; during operation, when the straight triangular block 31 is driven to rotate by the positive rotation of the power shaft 13, when its inclined surface corresponds to the inclined surface position of the straight trapezoidal block 33, a pair of inclined surfaces are squeezed to make the straight trapezoidal block 33 slide into the square groove 32, at this time, the first cylinder 14 will not drive the sealing ring 19 to rotate through the L ring 191, and will not separate the wastewater, when the power shaft 13 is reversed, the straight triangular block 31 directly contacts the straight trapezoidal block 33 directly, so that the first cylinder 14 can be driven to rotate by the power shaft 13, thereby completing the work of separating the wastewater into upper and lower parts.

[0043] Furthermore, strong magnetic blocks are arranged at the edge of the semi-annular shell 18 and the edge sealing ring 19, so as to achieve a better sealing effect for separating the wastewater.

[0044] The sealing member includes a circular plate 4; a circular plate 4 is sleeved on the outer circular wall of the first cylinder 14, and the top of the circular plate 4 is rotatably connected to an inner ring block 41 and an outer ring block 42 through an inner ring groove and an outer ring groove respectively; a pair of lifting blocking rings 43 are slidably connected to the outer circular wall of the first cylinder 14, and the positions of the lifting blocking rings 43 and the conveying groove 194 correspond, and the lifting blocking rings 43 are located in the L ring 191, and a pair of connecting columns 44 are fixedly connected to the top of the inner ring block 41, and the top of the connecting column 44 passes through the sedimentation tank 1 and is fixedly connected to the lifting blocking ring 43 at the proximal end, and the top of the lifting blocking ring 43 at the proximal end of the connecting column 44 is rotatably connected to a rotating ring, and the top of the rotating ring is fixedly connected to a vertical rod, and the top of the vertical rod passes through the sealing ring 19 and is fixedly connected to the lifting ring 43. The blocking-reducing rings 43 are fixedly connected; a pair of electric push rods 45 are fixedly connected to the top of the cavity 11 through a pair of placement grooves, and the telescopic ends of the electric push rods 45 are fixedly connected to the top of the outer ring block 42; when working, the pair of electric push rods 45 work to drive the circular plate 4 and the connecting column 44 to move downward, and then drive the lifting and lowering blocking ring 43 to block the conveying groove 194. When sedimentation is completed, the circular plate 4 and the lifting and lowering blocking ring 43 are driven downward again, and then the sediment transportation work is completed. When the circular plate 4 drives the connecting column 44 to rotate, it is prevented from getting stuck by rotating the inner ring. When the blocking ring 19 rotates, the rotating ring is driven to rotate by the vertical rod, so that the pair of lifting and lowering blocking rings 43 are driven to rotate without affecting each other, and only the lifting and lowering are synchronized.

[0045] Embodiment 2

[0046] like Figures 2 to 12As shown, the rotating rod 22 is composed of a top rod 5, a bottom rod 51 and a connecting rod 52. The bottom of the top rod 5 is provided with an upper circular groove 53, and the top of the bottom rod 51 is provided with a lower circular groove 54. The connecting rod 52 is slidably connected between the upper circular groove 53 and the lower circular groove 54. The inner walls of the upper circular groove 53 and the lower circular groove 54 are fixed with a group of limit blocks 55. The outer circular wall of the connecting block is provided with a limit groove 56, and the limit block 55 is slidably connected in the limit groove 56. The top of the circular plate 4 is rotatably connected to the connecting rod 52 through the rotating groove. When working, when the sediment is exhausted and slides down and accumulates along the conical structure at the bottom of the sedimentation tank 1, it is The electric push rod 45 drives the circular plate 4 and the connecting rod 52 to rise. At the same time, the limit block 55 on the connecting rod 52 is disengaged from the limit groove 56 in the bottom rod 51, but the bottom end of the connecting rod 52 is still in the bottom rod 51, so that when the sediment is scraped off the bottom of the sedimentation tank 1, the stirring plate 26 is prevented from rotating to drive the liquid to flow excessively, affecting the sediment to gather in the low-lying area in the center. At this time, the stirring plate 26 will not rotate actively, but will still rotate with the L-shaped scraper 25 around the first tube 14 as the axis. The moving speed of the stirring plate 26 and the L-shaped scraper 25 is slow, and the stirring plate 26 is located in the outer circle of the sedimentation tank 1 and rotates slowly, which has little effect on the wastewater state and will not affect the sedimentation.

[0047] The top of the circular plate 4 is slidably connected to a sliding block 6 through a sliding groove, and a square box 61 is fixedly connected to the top of the sliding block 6, and the bottom of the square box 61 is fixedly connected to the top of the circular plate 4 through a spring, and a sliding plate 62 is slidably connected to the side wall of the square box 61, and a sliding plug 63 is fixedly connected to the side wall of the sliding plate 62 through a spring, and the sliding plug 63 is adapted to the limiting groove 56, and the top of the circular plate 4 is slidably connected to a lifting plate 64 through a square sliding groove, and a displacement rod 65 is fixedly connected to the side wall of the sliding plate 62, and the displacement rod 65 passes through the square box 61 and the lifting plate 64, and the side wall of the square box 61 is fixedly connected to the side wall of the lifting plate 64 through a spring, and an extrusion block 66 is fixedly connected to the top of the circular plate 4, and the cross-section of the extrusion block 66 is a right-angled trapezoid, and the inclined surface of the extrusion block 66 corresponds to the position of the end of the displacement rod 65; when working, the circular plate 4 rises, driving the extrusion block 66 to rise, at this time, the square box 61 and the top of the cavity 11 are in contact and extruded, and at the same time, the extrusion block 66 The displacement rod 65 is squeezed by the inclined surface, and the displacement rod 65 drives the sliding plate 62 and the sliding plug block 63 to move. The spring on the side wall of the sliding plug block 63 enables it to have a telescopic condition when it is plugged into the limit groove 56 of the connecting rod 52, so that when the sliding plug block 63 does not correspond to the position of the limit groove 56, the sliding plug block 63 is still in contact with the connecting rod 52, and when the stirring plate 26 rotates under the action of the liquid, the sliding plug block 63 can match the limit groove 56. The elastic setting of the side wall of the sliding plug block 63 can prevent the electric push rod 45 from rising a fixed distance, so that when the lifting and lowering ring 43 rises to a fixed position, the sliding plug block 63 does not correspond to the position of the limit groove 56 and cannot be inserted, resulting in the sliding plug block 63 being squeezed and the workpiece being deformed. By limiting the rotation of the connecting rod 52 and then limiting the rotation of the rotating rod 22, it can be avoided that the stirring plate 26 is affected by the liquid when moving, resulting in self-rotation, causing fluctuations in the wastewater and affecting the sedimentation.

[0048] A position sensor is provided at the top of the cavity 11, and the position of the position sensor corresponds to that of the circular plate 4. During operation, the position sensor can monitor the rising distance of the circular plate 4, thereby controlling the lifting and lowering blocking ring 43 to be in a state of not blocking the feed trough, and the sliding block 63 to be in a position to limit the rotation of the rotating rod 22.

[0049] A method for treating copper-containing wastewater, applicable to the above-mentioned copper-containing wastewater treatment device, comprises the following steps:

[0050] S1: First, the plugging ring 19 is controlled to rotate by the motor 12 and the transmission member to separate the wastewater into two parts, the upper and lower parts, so as to reduce the sedimentation distance of the sediment, and then the precipitant and flocculant are injected into the wastewater in the upper and lower parts of the sedimentation tank 1 through the inner ring box 27;

[0051] S2: Then the motor 12 drives the L-shaped scraper 25 and the stirring plate 26 to rotate slowly to stir the precipitant injected into the sedimentation tank 1 so that it is evenly mixed with the wastewater;

[0052] S3: Finally, after sedimentation, the electric push rod 45 drives the circular plate 4 and the lifting blocking ring 43 to rise at the same time, and the power shaft 13 drives the dragon plate to rotate, so that the sediment is transported out of the sedimentation tank 1.

[0053] Working principle: The motor 12 drives the power shaft 13 and the auger blade to rotate in the first cylinder 14 to transport the sediment. The first cylinder 14 is controlled to rotate by the transmission member. When the first cylinder 14 rotates, it drives the blocking ring 19 to rotate out of the semi-ring shell 18, so that the semi-ring shell 18, the blocking ring 19 and the fixed ring 17 form a closed conical downwardly arranged partition, thereby dividing the sedimentation tank 1 into two upper and lower sedimentation parts, so that the sedimentation tank 1 with the same diameter has a shorter distance from the bottom of the sediment, thereby increasing the sedimentation efficiency. The power shaft 13 drives the power gear 192 to rotate, and the transmission gear 24 and the gear ring 193 and the power gear 192 are all meshed, so that the transmission gear 24 drives the rotating rod 22 and the L-shaped scraper 25 to move the first cylinder 1. 4 is the axis to rotate, and at the same time, the upper ring block 21 and the lower ring block 2 are rotated, and the rotating rod 22 drives the stirring plate 26 to rotate, and the precipitant is sprayed out through the spraying holes on the inner ring box 27, and is driven to diffuse by the stirring plate 26 with a relatively large distance, thereby avoiding the problem of uneven diffusion of the precipitant, and the stirring plate 26 is close to the outer ring of the sedimentation tank 1, and the sediment is accumulated downward to the bottom end of the conical structure, that is, the proximal end of the first cylinder 14, and the stirring plate 26 is far away from the accumulation place where the sediment slides and settles, so that the work of the stirring plate 26 and the L-shaped scraper 25 does not affect the extraction of liquid from the upper and lower parts of the sedimentation tank 1 and the simultaneous transportation and scraping of the sediment, thereby increasing the efficiency of sediment scraping, transportation and liquid discharge, wherein the sediment on the top of the blocking ring 19, when it rotates When the power shaft 13 rotates, its top contacts the side wall of the semi-ring shell 18, and is scraped off by the semi-ring shell 18, and with the establishment of the cone angle, it falls to the near end of the first straight cylinder 14 and is transported out. When the power shaft 13 rotates forward to drive the straight triangular block 31 to rotate, when its inclined surface corresponds to the inclined surface position of the straight trapezoidal block 33, a pair of inclined surfaces squeeze, so that the straight trapezoidal block 33 slides into the square groove 32. At this time, the first cylinder 14 will not drive the sealing ring 19 to rotate through the L ring 191, and will not separate the wastewater. When the power shaft 13 is reversed, the straight triangular block 31 directly contacts the straight trapezoidal block 33 directly, so that the power shaft 13 can drive the first cylinder 14 to rotate, thereby completing the work of separating the wastewater into upper and lower parts, and driving the circular plate 4 through a pair of electric push rods 45. The connecting column 44 moves downward, thereby driving the lifting blocking ring 43 to block the conveying groove 194. When the sedimentation is completed, the circular plate 4 and the lifting blocking ring 43 are driven downward, and then the sediment conveying work is completed. When the circular plate 4 drives the connecting column 44 to rotate, the inner ring rotates to avoid jamming. When the blocking ring 19 rotates, the rotating ring is driven to rotate by the vertical rod, so that the pair of lifting blocking rings 43 are driven to rotate without affecting each other, and only need to be lifted synchronously. When the sediment is exhausted and slides down and accumulates along the conical structure at the bottom of the sedimentation tank 1, the circular plate 4 and the connecting rod 52 are driven to rise by the electric push rod 45. At the same time, the limit block 55 on the connecting rod 52 is disengaged from the limit groove 56 in the bottom rod 51, but the bottom end of the connecting rod 52 is still in the bottom rod 51.When the sediment is scraped off the bottom of the sedimentation tank 1, the stirring plate 26 is prevented from rotating to drive the liquid to flow excessively, which affects the sediment to gather in the low-lying area in the center. At this time, the stirring plate 26 will not rotate actively, but will still rotate with the L-shaped scraper 25 around the first tube 14. The moving speed of the stirring plate 26 and the L-shaped scraper 25 is slow, and the stirring plate 26 is located in the outer circle of the sedimentation tank 1. The slow rotation has little effect on the state of the wastewater and will not affect the sedimentation. The circular plate 4 rises and drives the extrusion block 66 to rise. At this time, the square box 61 and the top of the cavity 11 are in contact and squeezed. At the same time, the extrusion block 66 squeezes the displacement rod 65 through the inclined surface, and makes the displacement rod 65 drive the sliding plate 62 and the sliding plug block 63 to move, wherein the spring on the side wall of the sliding plug block 63 enables it to have a telescopic condition when it is plugged into the limit groove 56 of the connecting rod 52, so that when the sliding plug block 63 is not in the position of the limit groove 56 When the sliding block 63 corresponds to the connecting rod 52, the sliding block 63 is still in contact with the connecting rod 52. When the stirring plate 26 rotates under the action of the liquid, the sliding block 63 can match the limiting groove 56. The elastic setting of the side wall of the sliding block 63 can prevent the electric push rod 45 from rising a fixed distance. When the lifting and lowering blocking ring 43 rises to a fixed position, the sliding block 63 does not correspond to the position of the limiting groove 56 and cannot be inserted, resulting in the sliding block 63 being squeezed and causing the workpiece to deform. By limiting the rotation of the connecting rod 52 and then limiting the rotation of the rotating rod 22, the stirring plate 26 can be prevented from being affected by the liquid when moving, causing self-rotation, causing wastewater to fluctuate, and affecting the sedimentation. By setting up a position sensor, the rising distance of the circular plate 4 can be monitored, and then the lifting and lowering blocking ring 43 can be controlled to be in a state of not blocking the feed trough, and the sliding block 63 is in a position to limit the rotation of the rotating rod 22.

[0054] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A copper-containing wastewater treatment device, characterized in that: The invention comprises a sedimentation tank (1); a cavity (11) is provided inside the sedimentation tank (1); a motor (12) is fixedly connected to the bottom of the cavity (11); a power shaft (13) is provided at the output end of the motor (12); a first cylinder (14) is rotatably connected to the top of the cavity (11) via a circular groove; a screw blade (15) is fixedly connected to the power shaft (13); the screw blade (15) is in contact with the inner wall of the first cylinder (14); an L cylinder (16) is rotatably connected to the top of the first cylinder (14); one end of the L cylinder (16) is arranged tilted downward; the top of the sedimentation tank (1) is fixedly connected to the end of the L cylinder (16) arranged downward via a fixing block; a fixing ring (17) is fixedly connected to the inner wall of the sedimentation tank (1); a semi-ring shell (18) is fixedly connected to the inner wall of the fixing ring (17); the lower end of the central edge of the semi-ring shell (18) is rotatably connected to the first cylinder (14); the semi-ring shell (18) is provided inside The sealing ring (19) is fixedly connected to the sealing ring (19) through an L ring (191), and the outer wall of the sealing ring (19) and the inner wall of the fixing ring (17) are rotatably connected; the bottom cross section of the sedimentation tank (1) is conical, and the fixing ring (17), the semi-ring shell (18) and the sealing ring (19) together form a circular ring with a conical cross section, and the cones are all arranged downward; a transmission member is arranged in the first tube (14), and the first tube (14) ) is controlled by a transmission member; a power gear (192) is fixedly connected to the power shaft (13), a gear ring (193) is fixedly connected to the inner wall of the cavity (11), and a scraping and stirring member is provided in the sedimentation tank (1); a pair of conveying grooves (194) are opened on the first cylinder (14), and the conveying grooves (194) correspond to the bottom of the sedimentation tank (1) and the position of the sealing ring (19) respectively, and a sealing member is provided at the conveying groove (194).

2. A copper-containing wastewater treatment device according to claim 1, characterized in that: The scraping and stirring member comprises a lower ring block (2); the bottom of the sedimentation tank (1) is rotatably connected to the lower ring block (2) via a lower ring groove; the fixing ring (17) is rotatably connected to the upper ring block (21) via an upper ring groove; the bottom of the cavity (11) is rotatably connected to the bottom ring block (23) via a bottom ring groove; the upper ring block (21) and the lower ring block (2) are both rotatably connected to a rotating rod (22) via a through groove; the bottom of the rotating rod (22) is rotatably connected to the bottom ring block (23); a transmission gear (24) is fixedly connected to the rotating rod (22), and the transmission gear (24) is respectively meshed with the gear ring (193) and the power gear (192); the upper A pair of L-shaped scrapers (25) are fixedly connected to the top of the ring block (21) and the lower ring block (2), and a group of L-shaped scrapers (25) are respectively in contact with the top and side walls of the sedimentation tank (1), the fixed ring (17), and the semi-ring shell (18); a group of stirring plates (26) are fixedly connected to the rotating rods (22) of the upper and lower parts of the fixed ring (17); an inner ring box (27) is provided on the inner ring wall of the sedimentation tank (1), and the positions of the inner ring box (27) and the stirring plates (26) correspond to each other, and a group of spray holes are provided on the inner ring box (27); a pair of drug inlet pipes (28) are provided outside the sedimentation tank (1), and the drug inlet pipes (28) and the inner ring box (27) are connected.

3. A copper-containing wastewater treatment device according to claim 2, characterized in that: The transmission member comprises a column slot (3); the first cylinder (14) is provided with a column slot (3); a group of straight triangular blocks (31) are fixedly connected to the power shaft (13); a group of square slots (32) are provided on the inner wall of the column slot (3); a group of side walls of the square slots (32) are fixedly connected with straight trapezoidal blocks (33) via springs; and the inclined surfaces of the straight triangular blocks (31) and the straight trapezoidal blocks (33) correspond to each other.

4. A copper-containing wastewater treatment device according to claim 3, characterized in that: The blocking member comprises a circular plate (4); the circular plate (4) is sleeved on the outer circular wall of the first cylinder (14); the top of the circular plate (4) is rotatably connected to an inner ring block (41) and an outer ring block (42) via an inner ring groove and an outer ring groove respectively; a pair of lifting blocking rings (43) are slidably connected to the outer circular wall of the first cylinder (14), and the positions of the lifting blocking rings (43) and the conveying groove (194) correspond to each other, the lifting blocking rings (43) are located in the L ring (191), and the top of the inner ring block (41) is fixedly connected to a pair of connecting columns (44), and the top of the connecting column (44) passes through the sedimentation tank (1) and is fixedly connected to the lifting and closing ring (43) at the proximal end; the top of the lifting and closing ring (43) at the proximal end of the connecting column (44) is rotatably connected to a rotating ring, the top of the rotating ring is fixedly connected to a vertical rod, and the top of the vertical rod passes through the sealing ring (19) and is fixedly connected to the lifting and closing ring (43); a pair of electric push rods (45) are fixedly connected to the top of the cavity (11) through a pair of placement grooves, and the telescopic ends of the electric push rods (45) are fixedly connected to the top of the outer ring block (42).

5. A copper-containing wastewater treatment device according to claim 4, characterized in that: The rotating rod (22) is composed of a top rod (5), a bottom rod (51) and a connecting rod (52); an upper circular groove (53) is provided at the bottom of the top rod (5); a lower circular groove (54) is provided at the top of the bottom rod (51); the connecting rod (52) is slidably connected between the upper circular groove (53) and the lower circular groove (54); a group of limit blocks (55) are fixedly connected to the inner walls of the upper circular groove (53) and the lower circular groove (54); a limit groove (56) is provided on the outer circular wall of the connecting rod (52); and the limit block (55) is slidably connected in the limit groove (56); the top of the circular plate (4) is rotatably connected to the connecting rod (52) via the rotating groove.

6. A copper-containing wastewater treatment device according to claim 5, characterized in that: The top of the circular plate (4) is slidably connected to a sliding block (6) via a sliding groove, the top of the sliding block (6) is fixedly connected to a square box (61), the bottom of the square box (61) is fixedly connected to the top of the circular plate (4) via a spring, the side wall of the square box (61) is slidably connected to a sliding plate (62), the side wall of the sliding plate (62) is fixedly connected to a sliding block (63) via a spring, and the sliding block (63) is matched with the limiting groove (56), the top of the circular plate (4) is fixedly connected to a square box (61), the bottom of the square box (61) is fixedly connected to the top of the circular plate (4) via a spring, The square slide groove is slidably connected with a lifting plate (64); a displacement rod (65) is fixedly connected to the side wall of the sliding plate (62); and the displacement rod (65) passes through the square box (61) and the lifting plate (64); the side wall of the square box (61) is fixedly connected to the side wall of the lifting plate (64) through a spring; an extrusion block (66) is fixedly connected to the top of the circular plate (4); and the cross section of the extrusion block (66) is a right-angled trapezoid; the inclined surface of the extrusion block (66) corresponds to the position of the end of the displacement rod (65).

7. A copper-containing wastewater treatment device according to claim 6, characterized in that: A position sensor is provided at the top of the cavity (11), and the positions of the position sensor and the circular plate (4) correspond to each other.

8. A method for treating copper-containing wastewater, applied to a copper-containing wastewater treatment device as described in claim 7, characterized in that: The following steps are involved: S1: First, the plugging ring (19) is controlled to rotate by the motor (12) and the transmission member to separate the wastewater into two parts, the upper and lower parts, so as to reduce the sedimentation distance of the sediment, and then the precipitant and flocculant are injected into the wastewater in the upper and lower parts of the sedimentation tank (1) in sequence through the inner ring box (27); S2: Then, the motor (12) drives the L-shaped scraper (25) and the stirring plate (26) to rotate slowly to stir the precipitant injected into the sedimentation tank (1) so that the precipitant is evenly mixed with the wastewater; S3: Finally, after sedimentation, the electric push rod (45) drives the circular plate (4) and the lifting and blocking ring (43) to rise simultaneously, and the power shaft (13) drives the auger (15) to rotate, so that the sediment is transported out of the sedimentation tank (1).

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