Phosphorite flotation wastewater treatment device with automatic deslagging function

Abstract

The invention discloses a phosphorite flotation wastewater treatment device with an automatic deslagging function, the phosphorite flotation wastewater treatment device comprises a box body, a coagulating basin, a slag scraping mechanism, a material collecting mechanism, a discharging pipe, a liquid collecting tank and a liquid discharging pipe, the slag scraping mechanism comprises a slope bottom and a screening mechanism, the slope bottom and the screening mechanism form a liquid collecting tank, the material collecting mechanism comprises a material collecting tank, and the liquid collecting tank is arranged in the liquid collecting tank. The coagulating basin, the slope bottom, the screening mechanism, the material collecting basin and the liquid collecting tank are all fixedly connected with the box body, the coagulating basin is connected with the slope bottom through a pipeline, the liquid collecting tank is connected with the screening mechanism through a pipeline, the material collecting basin is fixedly connected with the material discharging pipe, and the liquid collecting tank is fixedly connected with the liquid discharging pipe; the invention relates to the technical field of wastewater treatment equipment, and discloses a phosphorite flotation wastewater treatment device which can effectively precipitate phosphorite flotation wastewater, automatically scrape, collect and discharge precipitates, and through repeated slag scraping operation and matched detection of the wastewater, wastewater with sludge flows back, the removal rate of sludge waste residues is increased, and the wastewater treatment effect is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment equipment, in particular to a phosphate ore flotation wastewater treatment device with an automatic slag discharge function. Background Art

[0002] Wastewater from phosphate flotation usually exhibits high concentrations of phosphorus, suspended solids, chemical oxygen demand, and a variety of heavy metal ions. These characteristics work together to create significant technical challenges for wastewater treatment. In particular, excessive phosphorus discharge can easily lead to eutrophication of water bodies, posing a serious threat to the balance of the ecological environment.

[0003] In current technical practice, the method of adding flocculants such as lime and aluminum salts is widely used to promote the formation of insoluble precipitates of phosphorus, heavy metals and other substances in wastewater, thereby achieving their removal. However, the precipitate has a high humidity and its solid physical properties show a loose structure, which makes it difficult for conventional screening equipment to efficiently and thoroughly remove sludge precipitates. In addition, this method may also cause the precipitate to dissolve again in the wastewater, thereby preventing the wastewater treatment from achieving the desired effect. Summary of the invention

[0004] The object of the present invention is to provide a phosphate ore flotation wastewater treatment device with an automatic slag discharge function to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a phosphate ore flotation wastewater treatment device with automatic slag discharge function comprises a casing, a coagulation tank, a scraping mechanism, a gathering mechanism, a discharge pipe, a liquid collecting tank and a discharge pipe, the scraping mechanism comprises a slope bottom and a screening mechanism, the slope bottom and the screening mechanism constitute a liquid accumulation tank, the gathering mechanism comprises an gathering tank, the coagulation tank, the slope bottom, the screening mechanism, the gathering tank and the liquid collecting tank are all fixedly connected to the casing, the coagulation tank is connected to the slope bottom through a pipeline, the liquid collecting tank is connected to the screening mechanism through a pipeline, the gathering tank is fixedly connected to the discharge pipe, and the liquid collecting tank is fixedly connected to the discharge pipe.

[0006] The present invention discloses a device for treating wastewater from phosphate ore flotation. The wastewater from phosphate ore flotation is passed into a coagulation tank, and chemical reagents are added to form insoluble precipitates of phosphorus, heavy metals and the like in the wastewater. The wastewater with the precipitates flows into a liquid accumulation tank through a pipeline, and is left to stand for a period of time so that the suspended solid particles in the wastewater settle to the bottom to form sludge, thereby realizing solid-liquid separation. A scraping mechanism pushes the sludge and wastewater to move along the bottom of the slope away from the coagulation tank, a small part of the sludge and wastewater enters a screening mechanism and flows back to the liquid accumulation tank, and most of the sludge is pushed into a collecting tank by the scraping mechanism and discharged from a discharge pipe. The scraping mechanism repeats the scraping operation until the wastewater entering the screening mechanism does not contain sludge, and the screening mechanism passes the wastewater into a liquid collection tank and is discharged from the discharge pipe.

[0007] Furthermore, the scraping mechanism also includes a first side frame, a first motor, a sprocket, a chain and a scraper mechanism. The first side frame is fixedly connected to the box and the first motor. The first side frame is provided with a first through hole. The output end of the first motor is rotatably connected to the first through hole. The output end of the first motor is fixedly connected to the sprocket. The sprocket and the chain are connected by meshing transmission. The chain is provided with a first assembly hole. The scraper mechanism includes a cross bar, and the first assembly hole is fixedly connected to the cross bar.

[0008] During the scraping operation, the first motor outputs a fixed-axis torque to the sprocket, which engages with the chain through rotating sprockets assembled on the two sets of first side frames. The sprocket transmits the torque to the chain, and the chain reciprocates between the two sets of sprockets. The chain drives the cross bar and the scraping mechanism to move through the first assembly hole, and the scraping mechanism pushes the sludge and wastewater to move along the bottom of the slope away from the coagulation tank.

[0009] Furthermore, the scraper mechanism also includes a spring arc frame, an angle adjustment mechanism, a bucket, a pressure sensing mechanism and a slag sweeping mechanism. The spring arc frame is provided with a second assembly hole, the second assembly hole is fixedly connected to the cross bar, the angle adjustment mechanism is fixedly connected to the spring arc frame, the bucket is fixedly connected to the angle adjustment mechanism, the pressure sensing mechanism and the slag sweeping mechanism, and the angle adjustment mechanism is connected to the pressure sensing mechanism via an electrical signal.

[0010] The cross bar is assembled with a spring arc frame through the second assembly hole. The cross bar drives the bucket to push the sludge and wastewater along the bottom of the slope away from the coagulation tank through the spring arc frame and the angle adjustment mechanism. The pressure sensing mechanism presses against the bottom of the slope to send an electrical signal to the angle adjustment mechanism. The angle adjustment mechanism outputs torque to the bucket, so that the bucket always fits the bottom of the slope to prevent sludge and wastewater from flowing into the liquid accumulation pool through the gap between the bucket and the bottom of the slope. The slag sweeping mechanism ensures that most of the sludge remains in the bucket.

[0011] Furthermore, the angle adjustment mechanism includes a bottom cylinder, a second motor and a top cylinder. The bottom cylinder is fixedly connected to the spring arc frame and the second motor. The bottom cylinder is provided with an annular groove. The top cylinder is rotatably connected to the annular groove. The top cylinder is fixedly connected to the bucket. The top cylinder is provided with a convex column. The convex column is fixedly connected to the output end of the second motor. The pressure sensing mechanism includes a pressure sensor. The second motor and the pressure sensor are connected through electrical signals.

[0012] The second motor outputs a fixed-axis torque to the boss according to the electrical signal of the pressure sensor. The boss drives the top cylinder to rotate in the annular groove. The bottom cylinder is equipped with a spring arc frame, and the top cylinder is equipped with a bucket. The top cylinder rotates in the annular groove to drive the bucket to adjust the inclination angle so that the bucket always fits the bottom of the slope.

[0013] Furthermore, the pressure sensing mechanism also includes a connecting frame, an outer cylinder, a chassis, an extrusion rod and a second spring. The connecting frame is fixedly connected to the bucket and the outer cylinder, the chassis is fixedly connected to the extrusion rod, the second spring is fixedly connected to the outer cylinder and the extrusion rod, the pressure sensor is fixedly connected to the outer cylinder, and the extrusion rod is in contact with the pressure sensor.

[0014] The chassis contacts the bottom of the slope, and the chassis is equipped with an extrusion rod. The end of the extrusion rod away from the chassis contacts the pressure sensor. The end of the extrusion rod away from the chassis is connected to the outer cylinder through a second spring. When the extrusion rod slides along the axis of the outer cylinder, the second spring deforms, and the extrusion rod contacts the pressure sensor to send an electrical signal to the second motor.

[0015] Furthermore, the slag sweeping mechanism is provided with several groups, and the several groups of slag sweeping mechanisms are linearly evenly distributed along the cross bar. The slag sweeping mechanism includes a bent rod, an inner plate, a stop block, a third spring, a gear ring, an outer shell and a pulley seat. The bent rod is fixedly connected to the bucket and the inner plate. The inner plate is provided with a groove. The stop block is rotatably connected to the groove. The third spring is fixedly connected to the stop block and the groove. The gear ring is provided with an inner bevel gear pair, and the outer shell is provided with an inner gear pair. The stop block meshes with the tooth surface of the inner bevel gear pair, the gear ring meshes with the tooth surface of the inner gear pair, the gear ring is rotatably connected to the inner plate, the pulley seat is fixedly connected to the outer shell, and the pulley seat is provided with several groups, and the several groups of pulley seats are evenly distributed along the circumference of the inner plate.

[0016] When the bucket pushes the sludge and wastewater to move along the bottom of the slope away from the coagulation tank, the sludge is first scraped into the bucket, and the sewage moves along the bottom of the slope away from the coagulation tank, reacting on the slag sweeping mechanism. The elastic deformation of the third spring causes the stop block to press against the inner bevel tooth pair. When the tooth ring rotates in the specified direction, the inner bevel tooth pair contacts the stop block, causing the stop block to rotate and compress the third spring. After compression, the third spring recovers its deformation to cause the stop block to repeatedly press against the inner bevel tooth pair. The tooth ring is pressed by the stop block and cannot rotate in the specified direction. That is, the outer shell can only rotate in one direction through the tooth ring meshing with the tooth surface of the inner tooth pair. The pulley seat is used to make the outer shell and the bottom of the slope rolling contact to reduce friction. Several groups of slag sweeping mechanisms are linearly evenly distributed along the cross bar, and two adjacent groups of slag sweeping mechanisms are arranged in a mirror image with opposite specified rotation directions. The sludge sediment is swept into the bucket by the two groups of relatively rotating sludge.

[0017] Furthermore, the screening mechanism includes a side plate, a flow rate sensor, an outer cabin, a diverter plate and a third motor. The side plate is fixedly connected to the bottom of the slope, the flow rate sensor and the outer cabin. The third motor is fixedly connected to the outer cabin. The output end of the third motor is fixedly connected to the diverter plate. The third motor is connected to the flow rate sensor through electrical signals. A drain port and a reflux port are provided on the side plate. The drain port is provided in several groups. The several groups of drain ports are linearly evenly distributed along the side plate. The reflux port is connected to the side of the outer cabin close to the coagulation tank through a pipe, and the liquid collecting tank is connected to the side of the outer cabin away from the coagulation tank through a pipe.

[0018] When the bucket pushes the sludge and wastewater to move along the bottom of the slope away from the coagulation tank, the sludge is first scraped into the bucket, and the wastewater is pushed by the bucket into the outer cabin through the drain port. The flow rate sensor judges the sludge content in the wastewater according to the flow rate and sends an electrical signal to the third motor. When the wastewater contains sludge, the third motor outputs a directional fixed-axis torque to the diverter plate, and the diverter plate rotates to connect the outer cabin close to the coagulation tank with the reflux port through a pipe. The wastewater with sludge flows back to the liquid accumulation tank through the pipe and the reflux port. When the wastewater does not contain sludge, the third motor outputs a reverse fixed-axis torque to the diverter plate, and the diverter plate rotates in the opposite direction to connect the outer cabin away from the coagulation tank with the liquid collecting tank through a pipe, and the wastewater flows to the liquid collecting tank for discharge.

[0019] Furthermore, the material collecting mechanism also includes a second side frame, a fourth motor and a brush cylinder. The second side frame is fixedly connected to the box body and the fourth motor, and the output end of the fourth motor is fixedly connected to the brush cylinder.

[0020] When the bucket moves to the bottom of the slope away from one end of the coagulation tank, sludge remains in the bucket. As the bucket moves away from the bottom of the slope along the chain to the side of the brush cylinder, the fourth motor outputs a fixed-axis torque to drive the brush cylinder to rotate. The rotation of the brush cylinder scrapes the remaining sludge in the bucket into the aggregate tank.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention designs a scraper mechanism, through which the second motor outputs a fixed-axis torque to the convex column according to the electrical signal of the pressure sensor, and drives the bucket to adjust the inclination angle through the rotation of the top cylinder in the ring groove, so that the bucket always fits the bottom of the slope, and prevents sludge and wastewater from flowing into the accumulating pool from the gap between the bucket and the bottom of the slope; the present invention designs a slag sweeping mechanism, through which the elastic deformation of the third spring causes the stop block to press against the inner bevel gear pair, and when the gear ring rotates in a specified direction, the inner bevel gear pair contacts the stop block, causing the stop block to rotate and compress the third spring, and the third spring recovers its deformation after compression, causing the stop block to repeatedly press against the inner bevel gear pair, and the gear ring is pressed by the stop block and cannot rotate in the specified direction, that is, the outer shell can only rotate in one direction through the meshing of the gear ring with the tooth surface of the inner gear pair, and the two adjacent sets of slag sweeping mechanisms are arranged in a mirror image with opposite specified rotation directions, and the sludge precipitation is caused by the two sets of relative rotation The sludge is swept into the bucket to ensure that most of the sludge remains in the bucket; the present invention designs a screening mechanism, the wastewater is pushed by the bucket into the outer cabin through the drain port, the flow rate sensor judges the sludge content in the wastewater according to the flow rate and sends an electrical signal to the third motor, when the wastewater contains sludge, the third motor outputs a directional fixed-axis torque to the diverter plate, and the wastewater with sludge flows back to the liquid accumulation tank through the pipeline and the reflux port, when the wastewater does not contain sludge, the third motor outputs a reverse fixed-axis torque to the diverter plate, the diverter plate rotates in the opposite direction to make the outer cabin away from the coagulation tank side connected to the liquid collecting tank through the pipeline, and the wastewater flows to the liquid collecting tank for discharge; the present invention can effectively precipitate the phosphate ore flotation wastewater, automatically scrape and collect the precipitate, detect the wastewater by repeated scraping operations, make the wastewater with sludge flow back, improve the removal rate of sludge and waste residue, and greatly improve the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the scraping mechanism of the present invention; Figure 3 for Figure 2 A local enlarged schematic diagram of area A; Figure 4 It is a schematic diagram of the structure of the scraper mechanism of the present invention; Figure 5 for Figure 2 A local enlarged schematic diagram of region B; Figure 6 It is a structural schematic diagram of the angle adjustment mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the pressure sensing mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the slag sweeping mechanism of the present invention; Fig. 9 It is a schematic diagram of the screening mechanism structure of the present invention.

[0023] In the figure: 1, box body; 2, coagulation tank; 3, scraper mechanism; 31, slope; 32, first side frame; 321, first through hole; 33, first motor; 34, sprocket; 35, chain; 351, first assembly hole; 36, scraper mechanism; 361, cross bar; 362, spring arc frame; 3621, second assembly hole; 363, angle adjustment mechanism; 3631, bottom cylinder; 36311, annular groove; 3632, second motor; 3633, top cylinder; 36331, convex column; 364, bucket; 365, pressure sensing mechanism; 3651, connecting frame; 3652, outer cylinder; 3653, chassis; 3654, extrusion rod; 3655, second spring; 3656, pressure sensor sensor; 366, slag sweeping mechanism; 3661, bent rod; 3662, inner plate; 36621, groove; 3663, stop block; 3664, third spring; 3665, gear ring; 36651, inner helical gear pair; 3666, outer shell; 36661, inner gear pair; 3667, pulley seat; 37, screening mechanism; 371, side plate; 3711, drain outlet; 3712, reflux outlet; 372, flow rate sensor; 373, outer cabin; 374, diverter plate; 375, third motor; 38, liquid accumulation pool; 4, gathering mechanism; 41, gathering pool; 42, second side frame; 43, fourth motor; 44, brush cylinder; 5, discharge pipe; 6, liquid collecting tank; 7, discharge pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 , Figure 2 As shown, the present invention provides a technical solution of a phosphate ore flotation wastewater treatment device with automatic slag discharge function, including a casing 1, a coagulation tank 2, a scraping mechanism 3, a collecting mechanism 4, a discharge pipe 5, a liquid collecting tank 6 and a discharge pipe 7, the scraping mechanism 3 includes a slope bottom 31 and a screening mechanism 37, the slope bottom 31 and the screening mechanism 37 form a liquid accumulation tank 38, the collecting mechanism 4 includes an collecting tank 41, the coagulation tank 2, the slope bottom 31, the screening mechanism 37, the collecting tank 41, and the liquid collecting tank 6 are all fixedly connected to the casing 1, the coagulation tank 2 is connected to the slope bottom 31 through a pipeline, the liquid collecting tank 6 is connected to the screening mechanism 37 through a pipeline, the collecting tank 41 is fixedly connected to the discharge pipe 5, and the liquid collecting tank 6 is fixedly connected to the discharge pipe 7.

[0026] The present invention is a device for treating phosphate ore flotation wastewater. The phosphate ore flotation wastewater is passed into a coagulation tank 2, and chemical reagents are added to form insoluble precipitates of phosphorus, heavy metals, etc. in the wastewater. The wastewater with precipitates is passed into a liquid accumulation tank 38 through a pipeline, and is allowed to stand for a period of time so that the suspended solid particles in the wastewater settle to the bottom to form sludge, thereby realizing solid-liquid separation. A scraping mechanism 3 pushes the sludge and wastewater to move along a slope bottom 31 away from the coagulation tank 2, a small part of the sludge and wastewater enters a screening mechanism 37 and flows back to the liquid accumulation tank 38, and most of the sludge is pushed into a collecting tank 41 by the scraping mechanism 3 and discharged from a discharge pipe 5. The scraping mechanism 3 repeats the scraping operation until the wastewater entering the screening mechanism 37 does not contain sludge, and the screening mechanism 37 passes the wastewater into a liquid collection tank 6 and is discharged from a discharge pipe 7.

[0027] like Figure 2 , Figure 3 As shown, the scraper mechanism 3 also includes a first side frame 32, a first motor 33, a sprocket 34, a chain 35 and a scraper mechanism 36. The first side frame 32 is fixedly connected to the box body 1 and the first motor 33. The first side frame 32 is provided with a first through hole 321. The output end of the first motor 33 is rotatably connected to the first through hole 321. The output end of the first motor 33 is fixedly connected to the sprocket 34. The sprocket 34 and the chain 35 are connected by meshing transmission. The chain 35 is provided with a first assembly hole 351. The scraper mechanism 36 includes a cross bar 361. The first assembly hole 351 is fixedly connected to the cross bar 361.

[0028] During scraping operation, the first motor 33 outputs a fixed-axis torque to the sprocket 34, which is engaged with the chain 35 by rotating the sprocket 34 assembled on the two sets of first side frames 32. The sprocket 34 transmits the torque to the chain 35, and the chain 35 reciprocates between the two sets of sprockets 34. The chain 35 drives the cross bar 361 and the scraping mechanism 3 to move through the first assembly hole 351, and the scraping mechanism 3 pushes the sludge and wastewater to move along the slope bottom 31 away from the coagulation tank 2.

[0029] like Figure 4 , Figure 5 As shown, the scraper mechanism 36 also includes a spring arc frame 362, an angle adjustment mechanism 363, a bucket 364, a pressure-sensing mechanism 365 and a slag sweeping mechanism 366. The spring arc frame 362 is provided with a second assembly hole 3621, the second assembly hole 3621 is fixedly connected to the cross bar 361, the angle adjustment mechanism 363 is fixedly connected to the spring arc frame 362, the bucket 364 is fixedly connected to the angle adjustment mechanism 363, the pressure-sensing mechanism 365 and the slag sweeping mechanism 366, and the angle adjustment mechanism 363 and the pressure-sensing mechanism 365 are connected via electrical signals.

[0030] The cross bar 361 is assembled with the spring arc frame 362 through the second assembly hole 3621. The cross bar 361 drives the bucket 364 through the spring arc frame 362 and the angle adjustment mechanism 363 to push the sludge and wastewater along the bottom of the slope 31 to move away from the coagulation tank 2. The pressure sensing mechanism 365 presses against the bottom of the slope 31 to send an electrical signal to the angle adjustment mechanism 363. The angle adjustment mechanism 363 outputs a torque to the bucket 364, so that the bucket 364 always fits the bottom of the slope 31, avoiding the sludge and wastewater from flowing from the gap between the bucket 364 and the bottom of the slope 31 to the liquid accumulation pool 38. The slag sweeping mechanism 366 ensures that most of the sludge remains in the bucket 364.

[0031] like Figure 6 As shown, the angle adjustment mechanism 363 includes a bottom cylinder 3631, a second motor 3632 and a top cylinder 3633, the bottom cylinder 3631 is fixedly connected to the spring arc frame 362 and the second motor 3632, the bottom cylinder 3631 is provided with an annular groove 36311, the top cylinder 3633 is rotatably connected to the annular groove 36311, the top cylinder 3633 is fixedly connected to the bucket 364, the top cylinder 3633 is provided with a convex column 36331, the convex column 36331 is fixedly connected to the output end of the second motor 3632, the pressure sensing mechanism 365 includes a pressure sensor 3656, and the second motor 3632 is connected to the pressure sensor 3656 through an electrical signal.

[0032] The second motor 3632 outputs a fixed-axis torque to the boss 36331 according to the electrical signal of the pressure sensor 3656, and the boss 36331 drives the top cylinder 3633 to rotate in the annular groove 36311. The bottom cylinder 3631 is equipped with a spring arc frame 362, and the top cylinder 3633 is equipped with a bucket 364. The top cylinder 3633 rotates in the annular groove 36311 to drive the bucket 364 to adjust the inclination angle, so that the bucket 364 always fits the bottom of the slope 31.

[0033] like Figure 7 As shown, the pressure sensing mechanism 365 also includes a connecting frame 3651, an outer cylinder 3652, a chassis 3653, an extrusion rod 3654 and a second spring 3655. The connecting frame 3651 is fixedly connected to the bucket 364 and the outer cylinder 3652. The chassis 3653 is fixedly connected to the extrusion rod 3654. The second spring 3655 is fixedly connected to the outer cylinder 3652 and the extrusion rod 3654. The pressure sensor 3656 is fixedly connected to the outer cylinder 3652, and the extrusion rod 3654 is in contact with the pressure sensor 3656.

[0034] The chassis 3653 contacts the slope bottom 31, and the chassis 3653 is equipped with an extrusion rod 3654. The end of the extrusion rod 3654 away from the chassis 3653 contacts the pressure sensor 3656. The end of the extrusion rod 3654 away from the chassis 3653 is connected to the outer cylinder 3652 through the second spring 3655. When the extrusion rod 3654 slides along the axis of the outer cylinder 3652, the second spring 3655 is deformed, and the extrusion rod 3654 contacts the pressure sensor 3656 to send an electrical signal to the second motor 3632.

[0035] like Figure 2 , Figure 8 As shown, the slag sweeping mechanism 366 is provided with several groups, and the several groups of slag sweeping mechanisms 366 are linearly evenly distributed along the cross bar 361. The slag sweeping mechanism 366 includes a bent rod 3661, an inner plate 3662, a stopper 3663, a third spring 3664, a gear ring 3665, an outer shell 3666 and a pulley seat 3667. The bent rod 3661 is fixedly connected to the bucket 364 and the inner plate 3662. A groove 36621 is provided on the inner plate 3662. The stopper 3663 is rotatably connected to the groove 36621. The third spring 3664 is connected to the stopper 3663 and the groove 36621 are fixedly connected, the gear ring 3665 is provided with an inner bevel gear pair 36651, the outer shell 3666 is provided with an inner gear pair 36661, the stop block 3663 is meshed with the tooth surface of the inner bevel gear pair 36651, the gear ring 3665 is meshed with the tooth surface of the inner gear pair 36661, the gear ring 3665 is rotatably connected to the inner disk 3662, the pulley seat 3667 is fixedly connected to the outer shell 3666, and the pulley seat 3667 is provided with a plurality of groups, and the plurality of pulley seats 3667 are evenly distributed along the circumference of the inner disk 3662.

[0036] When the bucket 364 pushes the sludge and wastewater to move along the slope bottom 31 away from the coagulation tank 2, the sludge is first scraped into the bucket 364, and the sewage moves along the slope bottom 31 away from the coagulation tank 2 and reacts on the slag sweeping mechanism 366. The elastic deformation of the third spring 3664 causes the stop block 3663 to press against the inner bevel gear pair 36651. When the gear ring 3665 rotates in a specified direction, the inner bevel gear pair 36651 contacts the stop block 3663, causing the stop block 3663 to rotate and compress the third spring 3664. The third spring 3664 recovers after being compressed. The block 3663 is changed to repeatedly press against the inner bevel gear pair 36651, and the gear ring 3665 is pressed by the block 3663 and cannot rotate in the specified direction, that is, the outer shell 3666 can only rotate in one direction through the engagement of the gear ring 3665 with the tooth surface of the inner gear pair 36661, and the pulley seat 3667 is used to make the outer shell 3666 and the slope bottom 31 rolling contact to reduce friction, and several groups of slag sweeping mechanisms 366 are linearly evenly distributed along the cross bar 361, and two adjacent groups of slag sweeping mechanisms 366 are arranged in mirror image with opposite specified rotation directions, and the sludge sediment is swept into the bucket 364 by the two groups of relatively rotating sludge.

[0037] like Fig. 9 As shown, the screening mechanism 37 includes a side plate 371, a flow rate sensor 372, an outer cabin 373, a diverter plate 374 and a third motor 375. The side plate 371 is fixedly connected to the slope bottom 31, the flow rate sensor 372 and the outer cabin 373. The third motor 375 is fixedly connected to the outer cabin 373. The output end of the third motor 375 is fixedly connected to the diverter plate 374. The third motor 375 is connected to the flow rate sensor 372 through an electrical signal. A drain port 3711 and a reflux port 3712 are provided on the side plate 371. The drain port 3711 is provided in several groups. The several groups of drain ports 3711 are linearly evenly distributed along the side plate 371. The reflux port 3712 is connected to the side of the outer cabin 373 close to the coagulation tank 2 through a pipeline. The liquid collecting tank 6 is connected to the side of the outer cabin 373 away from the coagulation tank 2 through a pipeline.

[0038] When the bucket 364 pushes the sludge and wastewater to move along the bottom of the slope 31 away from the coagulation tank 2, the sludge is first scraped into the bucket 364, and the wastewater is pushed by the bucket 364 into the outer cabin 373 through the drain port 3711. The flow rate sensor 372 judges the sludge content in the wastewater according to the flow rate and sends an electrical signal to the third motor 375. When the wastewater contains sludge, the third motor 375 outputs a directional fixed-axis torque to the diverter plate 374. The diverter plate 374 rotates to make the outer cabin 373 close to the coagulation tank 2 and connected to the reflux port 3712 through a pipe. The wastewater with sludge flows back to the liquid accumulation tank 38 through the pipe and the reflux port 3712. When the wastewater does not contain sludge, the third motor 375 outputs a reverse fixed-axis torque to the diverter plate 374. The diverter plate 374 rotates in the opposite direction to make the outer cabin 373 away from the coagulation tank 2 and connected to the liquid collecting tank 6 through a pipe, and the wastewater flows to the liquid collecting tank 6 for discharge.

[0039] like Figure 2 As shown, the material collecting mechanism 4 also includes a second side frame 42 , a fourth motor 43 and a brush cylinder 44 . The second side frame 42 is fixedly connected to the box body 1 and the fourth motor 43 , and the output end of the fourth motor 43 is fixedly connected to the brush cylinder 44 .

[0040] When the bucket 364 moves to the bottom of the slope 31 away from the end of the coagulation tank 2, sludge remains in the bucket 364. As the bucket 364 leaves the bottom of the slope 31 and moves to the side of the brush cylinder 44 along the chain 35, the fourth motor 43 outputs a fixed-axis torque to drive the brush cylinder 44 to rotate. The brush cylinder 44 rotates to scrape the sludge remaining in the bucket 364 into the aggregate tank 41.

[0041] The working principle of the present invention is as follows: chemical reagents are added to the phosphate ore flotation wastewater in the coagulation tank 2, and the wastewater is passed into the effluent tank 38 to form sludge and settling, thereby achieving solid-liquid separation. The first motor 33 outputs a fixed-axis torque to the sprocket 34, and the chain 35 reciprocates between the two sets of sprockets 34. The second motor 3632 drives the bucket 364 to adjust the inclination angle through the top cylinder 3633 in the annular groove 36311 according to the electrical signal of the pressure sensor 3656, so that the bucket 364 starts to move. Finally, the bucket 364 pushes the sludge and wastewater to move along the slope bottom 31 away from the coagulation tank 2. The sludge is first scraped into the bucket 364. When the wastewater moves along the slope bottom 31 away from the coagulation tank 2, it reacts on the slag sweeping mechanism 366. The outer shell 3666 can only rotate in one direction through the tooth ring 3665 and the tooth surface of the inner gear pair 36661. The two adjacent sets of slag sweeping mechanisms 366 are arranged in mirror images with the specified rotation directions in opposite directions, and the sludge settles. The sludge is swept into the bucket 364 by two sets of relatively rotating sludge, and the wastewater is pushed by the bucket 364 into the outer chamber 373 through the drain port 3711. The flow rate sensor 372 judges the sludge content in the wastewater according to the flow rate and sends an electrical signal to the third motor 375. When the wastewater contains sludge, the third motor 375 outputs a directional fixed-axis torque to the diverter plate 374, and the wastewater with sludge flows back to the liquid accumulation tank 38 through the pipeline and the reflux port 3712. When the wastewater does not contain sludge, the third motor 375 outputs a directional fixed-axis torque to the diverter plate 374. The third motor 375 outputs a reverse fixed-axis torque to the diverter plate 374, and the wastewater flows to the liquid collecting tank 6 for discharge. When the bucket 364 moves to the bottom of the slope 31 away from one end of the coagulation tank 2, the sludge remains in the bucket 364. As the bucket 364 moves away from the bottom of the slope 31 along with the chain 35 to the side of the brush cylinder 44, the fourth motor 43 outputs a fixed-axis torque to drive the brush cylinder 44 to rotate. The brush cylinder 44 rotates to scrape the remaining sludge in the bucket 364 into the aggregate tank 41.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A phosphate ore flotation wastewater treatment device with automatic slag discharge function, characterized in that: The wastewater treatment device comprises a housing (1), a coagulation tank (2), a scraping mechanism (3), a collecting mechanism (4), a discharge pipe (5), a liquid collecting tank (6) and a discharge pipe (7); the scraping mechanism (3) comprises a sloped bottom (31) and a screening mechanism (37); the sloped bottom (31) and the screening mechanism (37) form a liquid accumulation tank (38); the collecting mechanism (4) comprises an collecting tank (41); the coagulation tank (2), the sloped bottom (31), the screening mechanism (37), the collecting tank (41) and the liquid collecting tank (6) are all fixedly connected to the housing (1); the coagulation tank (2) is connected to the sloped bottom (31) via a pipeline; the liquid collecting tank (6) is connected to the screening mechanism (37) via a pipeline; the collecting tank (41) is fixedly connected to the discharge pipe (5); and the liquid collecting tank (6) is fixedly connected to the discharge pipe (7).

2. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 1 is characterized in that: The scraper mechanism (3) further comprises a first side frame (32), a first motor (33), a sprocket (34), a chain (35) and a scraper mechanism (36); the first side frame (32) is fixedly connected to the box body (1) and the first motor (33); a first through hole (321) is provided on the first side frame (32); an output end of the first motor (33) is rotatably connected to the first through hole (321); an output end of the first motor (33) is fixedly connected to the sprocket (34); the sprocket (34) and the chain (35) are connected by meshing transmission; a first assembly hole (351) is provided on the chain (35); the scraper mechanism (36) comprises a cross bar (361); and the first assembly hole (351) is fixedly connected to the cross bar (361).

3. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 2 is characterized in that: The scraper mechanism (36) further comprises a spring arc frame (362), an angle adjustment mechanism (363), a bucket (364), a pressure sensing mechanism (365) and a slag sweeping mechanism (366); the spring arc frame (362) is provided with a second assembly hole (3621); the second assembly hole (3621) is fixedly connected to the cross bar (361); the angle adjustment mechanism (363) is fixedly connected to the spring arc frame (362); the bucket (364) is fixedly connected to the angle adjustment mechanism (363), the pressure sensing mechanism (365) and the slag sweeping mechanism (366); and the angle adjustment mechanism (363) and the pressure sensing mechanism (365) are connected via an electrical signal.

4. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 3 is characterized in that: The angle adjustment mechanism (363) comprises a bottom cylinder (3631), a second motor (3632) and a top cylinder (3633); the bottom cylinder (3631) is fixedly connected to the spring arc frame (362) and the second motor (3632); the bottom cylinder (3631) is provided with an annular groove (36311); the top cylinder (3633) is rotatably connected to the annular groove (36311); the top cylinder (3633) is fixedly connected to the bucket (364); the top cylinder (3633) is provided with a convex column (36331); the convex column (36331) is fixedly connected to the output end of the second motor (3632); the pressure sensing mechanism (365) comprises a pressure sensor (3656); the second motor (3632) and the pressure sensor (3656) are connected via an electrical signal.

5. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 4 is characterized in that: The pressure sensing mechanism (365) further includes a connecting frame (3651), an outer cylinder (3652), a chassis (3653), an extrusion rod (3654) and a second spring (3655); the connecting frame (3651) is fixedly connected to the bucket (364) and the outer cylinder (3652); the chassis (3653) is fixedly connected to the extrusion rod (3654); the second spring (3655) is fixedly connected to the outer cylinder (3652) and the extrusion rod (3654); the pressure sensor (3656) is fixedly connected to the outer cylinder (3652); and the extrusion rod (3654) is in contact with the pressure sensor (3656).

6. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 3 is characterized by: The slag sweeping mechanism (366) is provided with a plurality of groups, and the plurality of groups of the slag sweeping mechanism (366) are linearly evenly distributed along the cross bar (361). The slag sweeping mechanism (366) comprises a bent rod (3661), an inner plate (3662), a stop block (3663), a third spring (3664), a gear ring (3665), an outer shell (3666) and a pulley seat (3667). The bent rod (3661) is fixedly connected to the bucket (364) and the inner plate (3662). A groove (36621) is provided on the inner plate (3662). The stop block (3663) is rotatably connected to the groove (36621). The third spring (3664) is connected to the stop block. (3663) and the groove (36621) are fixedly connected, the gear ring (3665) is provided with an inner bevel gear pair (36651), the outer shell (3666) is provided with an inner gear pair (36661), the stop block (3663) is meshed with the tooth surface of the inner bevel gear pair (36651), the gear ring (3665) is meshed with the tooth surface of the inner gear pair (36661), the gear ring (3665) is rotatably connected to the inner disk (3662), the pulley seat (3667) is fixedly connected to the outer shell (3666), and the pulley seat (3667) is provided with a plurality of groups, and the plurality of groups of pulley seats (3667) are evenly distributed along the circumference of the inner disk (3662).

7. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 1, characterized in that: The screening mechanism (37) comprises a side plate (371), a flow rate sensor (372), an outer chamber (373), a flow divider (374) and a third motor (375); the side plate (371) is fixedly connected to the slope bottom (31), the flow rate sensor (372) and the outer chamber (373); the third motor (375) is fixedly connected to the outer chamber (373); an output end of the third motor (375) is fixedly connected to the flow divider (374); and the third motor (375) is fixedly connected to the outer chamber (373). ) is connected to the flow rate sensor (372) through an electrical signal, the side plate (371) is provided with a drain port (3711) and a return port (3712), the drain port (3711) is provided with a plurality of groups, and the plurality of groups of drain ports (3711) are linearly evenly distributed along the side plate (371), the return port (3712) is connected to the side of the outer chamber (373) close to the coagulation tank (2) through a pipeline, and the liquid collecting tank (6) is connected to the side of the outer chamber (373) away from the coagulation tank (2) through a pipeline.

8. The phosphate ore flotation wastewater treatment device with automatic slag discharge function according to claim 1, characterized in that: The material collecting mechanism (4) further comprises a second side frame (42), a fourth motor (43) and a brush cylinder (44); the second side frame (42) is fixedly connected to the box body (1) and the fourth motor (43); and the output end of the fourth motor (43) is fixedly connected to the brush cylinder (44).

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