Efficient flocculent precipitation system for barite mining and dressing wastewater

Abstract

The utility model discloses an efficient flocculent precipitation system for barite mining and dressing wastewater, which belongs to the technical field of mineral mining and dressing wastewater treatment, and comprises a pretreatment box and a precipitation box, the upper side wall of the pretreatment box is communicated with a water inlet valve port, and the upper part of one side of the pretreatment box is provided with an overflow port communicated with the precipitation box; a first filter screen is fixedly connected into the overflow opening, a water outlet valve opening is formed in the upper portion of the side, away from the pretreatment box, of the settling box in a communicating mode, a second filter screen is fixedly connected to the inner wall of the communicating opening of the settling box and the water outlet valve opening, and cleaning mechanisms used for cleaning the first filter screen and the second filter screen are arranged on the pretreatment box and the settling box. According to the utility model, the cleaning mechanism is arranged to clean the first filter screen and the second filter screen, so that the blockage is prevented, the stability of the flocculent precipitation work of barite mining and dressing wastewater is ensured, and the residue discharge mechanism is arranged to forcibly discharge residues from the residue discharge valve port, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral mining wastewater treatment, in particular to a high-efficiency flocculation and sedimentation system for barite mining wastewater. Background Art

[0002] Barite is the most common mineral of barium. It is composed of barium sulfate and is produced in low-temperature hydrothermal veins. Barite is a non-renewable resource and one of China's export-oriented mineral products. It is widely used as a weighting agent for oil and natural gas drilling mud. Its consumption in barium chemicals, fillers and other fields is also increasing year by year. Barite mining wastewater contains a large amount of suspended matter, so it needs to be pretreated. Common pretreatment methods include mechanical filtration, sedimentation and aeration. Mechanical filtration intercepts suspended matter through the filter screen. Sedimentation aggregates suspended matter to form sediment by adding flocculants. Aeration adds bubbles to make suspended matter float, which is convenient for sedimentation.

[0003] In a Chinese patent for a multi-stage sedimentation treatment device for barite ore beneficiation wastewater (patent number: CN211620113U), the device includes: a first sedimentation tank, a second sedimentation tank, a third sedimentation tank, a waste liquid inlet, a treated water outlet, an overflow pipe and a filter screen. The first-stage sedimentation tank is provided with a waste liquid inlet, and the first sedimentation tank, the second sedimentation tank, and the third sedimentation tank are separated by a partition, and an overflow pipe is provided on the adjacent partition. A circle of filter screens for filtering impurities is provided on the outside of the overflow pipe, and a treated water outlet is provided on the third sedimentation tank. The device uses multiple sedimentation tanks to treat wastewater, so that the treatment effect is increased and the treatment efficiency is improved. Due to the use of a filter screen, small-mass impurities that are not easy to precipitate can be filtered out, so that the treatment effect is better. However, the device does not have the function of automatically cleaning the filter screen, the filter screen is easily blocked, and the cleaning takes a long time, wastes manpower, and the sediment discharge and material collection are more troublesome, which affects the efficiency of flocculation sedimentation treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater, comprising a pretreatment tank and a sedimentation tank, wherein the upper side wall of the pretreatment tank is connected to a water inlet valve port, an upper part of one side of the pretreatment tank is provided with an overflow port connected to the sedimentation tank, a first filter screen is fixedly connected in the overflow port, an upper part of a side of the sedimentation tank away from the pretreatment tank is connected to a water outlet valve port, a second filter screen is fixedly connected to the inner wall of the communicating port between the sedimentation tank and the water outlet valve port, a cleaning mechanism for cleaning the first filter screen and the second filter screen is provided on the pretreatment tank and the sedimentation tank, an aeration mechanism is provided on the inner wall of one side of the sedimentation tank, a slag discharge valve port is connected to the bottom of the pretreatment tank and the sedimentation tank, and a slag discharge mechanism is provided in the two slag discharge valve ports;

[0006] The cleaning mechanism includes a casing that is connected to the upper side of the pretreatment box and the sedimentation box, a double-headed motor is fixedly connected to the inner wall of the casing, both ends of the double-headed motor are fixedly connected to a rotating shaft, one end of the two rotating shafts is fixedly connected to a cam, the end of the cam away from its rotation center is hingedly connected to a rocker rod, positioning guide mechanisms are provided on both sides of the first filter screen and the second filter screen, a cleaning brush plate is fixedly connected between the two positioning guide mechanisms, the lower ends of the two rocker rods are respectively hingedly connected to the two cleaning brush plates, and the two cleaning brush plates are respectively set against the filtering surfaces of the first filter screen and the second filter screen.

[0007] As a further solution of the utility model: wherein, the slag discharge mechanism includes a rectangular shell fixed on the lower side of the two slag discharge valve ports, one end of the rectangular shell is fixedly connected to a servo motor, the main shaft end of the servo motor passes through the rectangular shell and is fixedly connected to a rotating rod, and the rotating rod is fixedly connected to a driving bevel gear, and the lower side walls of the two slag discharge valve ports are inserted and rotatably connected with a rotating pin, the lower end of the rotating pin is fixedly connected to a driven bevel gear meshing with the driving bevel gear, and the upper end of the rotating pin is fixedly connected to a spiral discharge rod.

[0008] As a further solution of the utility model: wherein, a through hole communicating with the rectangular shell is opened on the lower side wall of the slag discharge valve port, and the through hole is rotatably connected to the rotating pin through a waterproof bearing.

[0009] As a further solution of the utility model: wherein the aeration mechanism includes an aerator and an aeration pipe connected to the aerator, the aerator is fixed on the outer wall of the sedimentation tank, and the aeration pipe is fixed on the inner wall of the sedimentation tank.

[0010] As a further solution of the utility model: wherein, the positioning guide mechanism includes a positioning rod, the positioning rod is sleeved with a positioning sleeve, and the positioning sleeve is fixedly connected to the cleaning brush plate.

[0011] As a further solution of the utility model: wherein, the horizontal height of the overflow port is higher than the horizontal height of the water outlet valve port.

[0012] As a further solution of the utility model: wherein, a control panel is fixedly connected to one side of the pretreatment box, and the control panel is electrically connected to one end of the cleaning mechanism, the slag discharge mechanism and the aeration mechanism respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This kind of barite mining wastewater efficient flocculation and sedimentation system is equipped with a cleaning mechanism. When the device is performing flocculation and sedimentation on the barite mining wastewater, the double-headed motor is started to drive the two cams on the two rotating shafts to rotate at the same time, thereby pulling the two swing rods to swing, and then pulling the two cleaning brush plates to move back and forth up and down along the surfaces of the first filter and the second filter respectively. The first filter and the second filter can be cleaned at the same time to prevent blockage, thereby ensuring the stability of the flocculation and sedimentation work of the barite mining wastewater, facilitating cleaning, and saving manpower.

[0015] 2. This barite mining wastewater efficient flocculation sedimentation system is equipped with a slag discharge mechanism. When the residue produced by the sedimentation needs to be discharged regularly, the two slag discharge valves are opened, and the servo motor is started to drive the rotating rod to rotate. Since the two active bevel gears are respectively engaged with the two driven bevel gears, the spiral discharge rods on the two rotating pins are driven to rotate at the same time, and the residue can be forced to be discharged from the slag discharge valve, which is convenient for slag discharge and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 For the utility model Figure 2 A schematic diagram of a local enlarged structure;

[0019] Figure 4 It is a schematic diagram of the front cross-sectional structure of two slag discharge valve ports in the utility model.

[0020] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0021] 1. Pretreatment box; 2. Sedimentation box; 3. Water inlet valve port; 4. Overflow port; 5. First filter screen; 6. Water outlet valve port; 7. Second filter screen; 8. Slag outlet valve port; 9. Casing; 10. Double-head motor; 11. Rotating shaft; 12. Cam; 13. Rocker arm; 14. Cleaning brush plate; 15. Rectangular shell; 16. Servo motor; 17. Rotating rod; 18. Active bevel gear; 19. Rotating pin; 20. Driven bevel gear; 21. Spiral discharge rod; 22. Aerator; 23. Aeration pipe; 24. Positioning rod; 25. Positioning sleeve; 26. Control panel. DETAILED DESCRIPTION

[0022] See also Figures 1 to 4 In the practical embodiment, a high-efficiency flocculation and sedimentation system for barite mining and selection wastewater includes a pretreatment tank 1 and a sedimentation tank 2. The upper part of the front side wall of the sedimentation tank 2 is connected to a flocculant inlet, and the upper side wall of the pretreatment tank 1 is connected to a water inlet valve port 3. An upper part of one side of the pretreatment tank 1 is provided with an overflow port 4 connected to the sedimentation tank 2. A first filter screen 5 is fixedly connected to the overflow port 4, which can perform preliminary filtration on the barite mining and selection wastewater to filter out larger impurities. The upper part of the side of the sedimentation tank 2 away from the pretreatment tank 1 is connected to a water outlet port 4. The valve port 6 is used to discharge the waste water after sedimentation. The inner wall of the communication port between the sedimentation tank 2 and the outlet valve port 6 is fixedly connected with a second filter screen 7. The mesh of the first filter screen 5 is larger than the mesh diameter of the second filter screen 7, and the multi-stage filtering effect is good. The pretreatment tank 1 and the sedimentation tank 2 are provided with a cleaning mechanism for cleaning the first filter screen 5 and the second filter screen 7. An aeration mechanism is provided on the inner wall of one side of the sedimentation tank 2. The bottoms of the pretreatment tank 1 and the sedimentation tank 2 are both connected with a slag discharge valve port 8 to discharge the precipitated residue. The two slag discharge valve ports 8 are provided with a slag discharge mechanism;

[0023] The cleaning mechanism includes a casing 9 connected to the upper side of the pretreatment box 1 and the sedimentation box 2, a double-headed motor 10 is fixedly connected to the inner wall of the casing 9, both ends of the double-headed motor 10 are fixedly connected to a rotating shaft 11, one end of the two rotating shafts 11 is fixedly connected to a cam 12, and the end of the cam 12 away from its rotation center is hingedly connected to a swing rod 13, and positioning guide mechanisms are provided on both sides of the first filter screen 5 and the second filter screen 7, and a cleaning brush plate 14 is fixedly connected between the two positioning guide mechanisms, and the lower ends of the two swing rods 13 are respectively hingedly connected to the two cleaning brush plates 14, and the two cleaning brush plates 14 are respectively set against the filtering surfaces of the first filter screen 5 and the second filter screen 7. When the device is performing flocculation and sedimentation on the barite mining wastewater, the double-headed motor 10 is started to drive the two cams 12 on the two rotating shafts 11 to rotate at the same time, thereby pulling the two swing rods 13 to swing, and then pulling the two cleaning brush plates 14 to move back and forth up and down along the surfaces of the first filter screen 5 and the second filter screen 7 respectively. The first filter screen 5 and the second filter screen 7 can be cleaned at the same time to prevent blockage, thereby ensuring the stability of the flocculation and sedimentation work of the barite mining wastewater, facilitating cleaning, and saving manpower.

[0024] like Figure 1 and Figure 4 As shown: the slag discharge mechanism includes a rectangular shell 15 fixed to the lower side of the two slag discharge valve ports 8, one end of the rectangular shell 15 is fixedly connected to a servo motor 16, the main shaft end of the servo motor 16 passes through the rectangular shell 15 and is fixedly connected to a rotating rod 17, and a driving bevel gear 18 is fixedly connected to the rotating rod 17. The lower side walls of the two slag discharge valve ports 8 are both inserted and rotatably connected with a rotating pin 19, the lower end of the rotating pin 19 is fixedly connected to a driven bevel gear 20 meshing with the driving bevel gear 18, and the upper end of the rotating pin 19 is fixedly connected to a spiral discharge rod 21. When it is necessary to discharge the residue produced by precipitation regularly, the two slag discharge valve ports 8 are opened, the servo motor 16 is started to work, and the rotating rod 17 is driven to rotate. Since the two driving bevel gears 18 are respectively meshed with the two driven bevel gears 20, the spiral discharge rods 21 on the two rotating pins 19 are driven to rotate at the same time, so that the residue can be forced to be discharged from the slag discharge valve ports 8, which is convenient for slag discharge and improves work efficiency.

[0025] like Figure 4 As shown: a through hole is provided on the lower side wall of the slag discharge valve port 8 and is connected to the rectangular shell 15. The through hole is rotatably connected to the rotating pin 19 through a waterproof bearing to prevent water leakage.

[0026] like Figure 2 As shown: the aeration mechanism includes an aerator 22 and an aeration pipe 23 connected to the aerator 22. The aerator 22 is fixed on the outer wall of the sedimentation tank 2, and the aeration pipe 23 is fixed on the inner wall of the sedimentation tank 2. When the aerator 22 is started, the wastewater in the sedimentation tank 2 is aerated through the aeration pipe 23, so that the suspended matter floats up and is easy to settle.

[0027] like Figure 3 As shown: the positioning guide mechanism includes a positioning rod 24, a positioning sleeve 25 is sleeved on the positioning rod 24, and the positioning sleeve 25 is fixedly connected to the cleaning brush plate 14. When the cleaning brush plate 14 is displaced, the positioning sleeve 25 is driven to slide on the positioning rod 24, which can ensure that the cleaning brush plate 14 moves straight up and down.

[0028] like Figure 3 As shown: the level of the overflow port 4 is higher than the level of the water outlet valve port 6, which is convenient for automatic overflow.

[0029] like Figure 1 As shown: a control panel 26 is fixedly connected to one side of the pretreatment box 1, and the control panel 26 is electrically connected to one end of the cleaning mechanism, the slag discharge mechanism and the aeration mechanism respectively, and is connected to the double-headed motor 10, the servo motor 16 and the aerator 22. It is easy to operate and has an external power supply. The circuit involved is the existing technology and can be fully implemented by those skilled in the art without further explanation.

[0030] Working principle: When the device is used to treat the barite mining wastewater by flocculation and sedimentation, the wastewater is injected into the pretreatment tank 1 from the water inlet valve port 3, and the wastewater overflows into the sedimentation tank 2 from the overflow port 4. The larger impurities are retained by the first filter screen 5 in the pretreatment tank 1 for pre-filtration treatment. Then, flocculant is added to the sedimentation tank 2 from the flocculant inlet to make the wastewater in the sedimentation tank 2 flocculate, and the aerator 22 is started to work. The wastewater in the sedimentation tank 2 is aerated through the aeration pipe 23 to make the suspended matter float and facilitate sedimentation. The water is discharged from the water outlet valve port 6, and the second filter screen 7 can retain the flocculants in the sedimentation tank 2.

[0031] When the device is performing flocculation and sedimentation work on barite mining wastewater, the double-headed motor 10 is started to drive the two cams 12 on the two rotating shafts 11 to rotate simultaneously, thereby pulling the two swing rods 13 to swing, and then pulling the two cleaning brush plates 14 to move back and forth up and down along the surfaces of the first filter screen 5 and the second filter screen 7 respectively, and the first filter screen 5 and the second filter screen 7 can be cleaned at the same time to prevent blockage, thereby ensuring the stability of the flocculation and sedimentation work of the barite mining wastewater, facilitating cleaning, and saving manpower;

[0032] Secondly, when it is necessary to discharge the residue produced by precipitation regularly, open the two slag discharge valve ports 8, start the servo motor 16, and drive the rotating rod 17 to rotate. Since the two active bevel gears 18 are respectively engaged with the two driven bevel gears 20, the spiral discharge rods 21 on the two rotating pins 19 are driven to rotate at the same time, so that the residue can be forced to be discharged from the slag discharge valve port 8, which is convenient for slag discharge and improves work efficiency.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency flocculation and sedimentation system for barite mining wastewater, comprising a pretreatment tank (1) and a sedimentation tank (2), characterized in that: The upper side wall of the pretreatment tank (1) is connected to a water inlet valve port (3); an upper part of one side of the pretreatment tank (1) is provided with an overflow port (4) connected to the sedimentation tank (2); a first filter screen (5) is fixedly connected to the overflow port (4); an upper part of a side of the sedimentation tank (2) away from the pretreatment tank (1) is connected to a water outlet valve port (6); a second filter screen (7) is fixedly connected to the inner wall of the communication port between the sedimentation tank (2) and the water outlet valve port (6); a cleaning mechanism for cleaning the first filter screen (5) and the second filter screen (7) is provided on the pretreatment tank (1) and the sedimentation tank (2); an aeration mechanism is provided on the inner wall of one side of the sedimentation tank (2); a slag discharge valve port (8) is connected to the bottom of the pretreatment tank (1) and the sedimentation tank (2); and a slag discharge mechanism is provided in the two slag discharge valve ports (8); The cleaning mechanism comprises a casing (9) which is connected to the upper side of the pretreatment box (1) and the sedimentation box (2); a double-headed motor (10) is fixedly connected to the inner wall of the casing (9); both ends of the double-headed motor (10) are fixedly connected to a rotating shaft (11); one end of each of the two rotating shafts (11) is fixedly connected to a cam (12); the end of the cam (12) away from its rotation center is hingedly connected to a swing rod (13); positioning guide mechanisms are provided on both sides of the first filter screen (5) and the second filter screen (7); a cleaning brush plate (14) is fixedly connected between the two positioning guide mechanisms; the lower ends of the two swing rods (13) are respectively hingedly connected to the two cleaning brush plates (14); and the two cleaning brush plates (14) are respectively arranged to abut against the filtering surfaces of the first filter screen (5) and the second filter screen (7).

2. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 1, characterized in that: The slag discharge mechanism comprises a rectangular shell (15) fixed to the lower side of two slag discharge valve ports (8), one end of the rectangular shell (15) is fixedly connected to a servo motor (16), the main shaft end of the servo motor (16) passes through the rectangular shell (15) and is fixedly connected to a rotating rod (17), the rotating rod (17) is fixedly connected to a driving bevel gear (18), the lower side walls of the two slag discharge valve ports (8) are both inserted and rotatably connected with a rotating pin (19), the lower end of the rotating pin (19) is fixedly connected to a driven bevel gear (20) meshing with the driving bevel gear (18), and the upper end of the rotating pin (19) is fixedly connected to a spiral discharge rod (21).

3. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 2, characterized in that: A through hole communicating with the rectangular shell (15) is provided on the lower side wall of the slag discharge valve port (8), and the through hole is rotatably connected to the rotating pin (19) via a waterproof bearing.

4. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 1, characterized in that: The aeration mechanism comprises an aerator (22) and an aeration pipe (23) connected to the aerator (22); the aerator (22) is fixed on the outer wall of the sedimentation tank (2); and the aeration pipe (23) is fixed on the inner wall of the sedimentation tank (2).

5. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 1, characterized in that: The positioning guide mechanism comprises a positioning rod (24), a positioning sleeve (25) is sleeved on the positioning rod (24), and the positioning sleeve (25) is fixedly connected to the cleaning brush plate (14).

6. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 1, characterized in that: The level of the overflow port (4) is higher than the level of the water outlet valve port (6).

7. A high-efficiency flocculation and sedimentation system for barite mining and dressing wastewater according to claim 1, characterized in that: A control panel (26) is fixedly connected to one side of the pretreatment box (1), and the control panel (26) is electrically connected to one end of the cleaning mechanism, the slag discharge mechanism and the aeration mechanism respectively.

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