Wastewater treatment equipment and method for plastic pipe production

Abstract

The present invention relates to the technical field of wastewater pretreatment for plastic pipe production, and specifically discloses a wastewater treatment device for plastic pipe production, including a sedimentation tank, wherein an inlet is fixedly arranged at the front side of the sedimentation tank, a water outlet is fixedly arranged at one side of the sedimentation tank, an annular plate is fixedly arranged at the inner side of the sedimentation tank, a salvage mechanism is arranged at the inner side of the annular plate, a cover plate is fixedly arranged at the upper side of the sedimentation tank, a drainage mechanism is arranged at the upper side of the cover plate, a cleaning mechanism is arranged at the lower side of the upper side of the cover plate near the drainage mechanism, and the salvage mechanism includes a support plate fixedly arranged at the inner side of the annular plate, and a plurality of groups of inflow holes are opened at the lower side of the support plate. The present invention cleans up these large-volume garbage in the wastewater produced by plastic pipes through the cooperation between the salvage mechanism, the drainage mechanism, and the cleaning mechanism, so as to avoid occupying the space of the sedimentation tank and thus preventing it from affecting the sewage sedimentation effect.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater used in the production of plastic pipes, and specifically discloses a wastewater treatment device and a wastewater treatment method used in the production of plastic pipes. Background Art

[0002] Wastewater treatment: The process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical treatment, catering, etc., and is increasingly entering the daily lives of ordinary people. Since the wastewater from plastic pipe production contains a large amount of suspended matter, non-degradable substances and other large-volume garbage before treatment, such as plastic fragments, resins, fibers, etc., after the wastewater from plastic pipe production directly enters the sedimentation tank, these large-volume garbage will increase the types of pollutants in the wastewater from plastic pipe production, occupy the space of the sedimentation tank, and affect the sedimentation effect of the wastewater from plastic pipe production. Therefore, it is necessary to pre-treat the large-volume garbage in the sewage. At present, the wastewater treatment equipment for plastic pipe production on the market mainly treats impurities in the sewage through filters. When filtering impurities, it will use filters to filter floating objects and suspended matter in the sewage. However, in actual application, once the filter is blocked, it is necessary to manually disassemble the filter and clean it. In this way, the equipment needs to be shut down for processing, which is not convenient for the continuous use of the organization, and will affect the use efficiency of the sewage treatment equipment; secondly, the sewage treatment equipment on the market generally does not accelerate the drainage of the salvaged garbage, and the waiting time is relatively long, thereby reducing the drainage efficiency; in addition, manual cleaning of the filter is time-consuming and labor-intensive, and wastes human resources. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a sewage treatment device and method for plastic pipe production.

[0004] To achieve the above objectives, the present invention provides a wastewater treatment device for plastic pipe production, comprising a sedimentation tank, wherein an inlet is fixedly provided on the front side of the sedimentation tank, a water outlet is fixedly provided on one side of the sedimentation tank, an annular plate is fixedly provided on the inner side of the sedimentation tank, a salvage mechanism is provided on the inner side of the annular plate, a cover plate is fixedly provided on the upper side of the sedimentation tank, a drainage mechanism is provided on the upper side of the cover plate, a cleaning mechanism is provided on the upper side of the cover plate near the lower side of the drainage mechanism, the salvage mechanism comprises a support plate fixedly provided on the inner side of the annular plate, a plurality of groups of inflow holes are provided on the lower side of the support plate, a plurality of groups of outflow holes are provided on the upper side of the support plate, hydraulic cylinders are fixedly installed on the inner side of the sedimentation tank near the two sides, movable shaft frames are fixedly provided on the upper ends of the two groups of hydraulic cylinders, and rotating shaft frames are movably provided on the inner sides of the two groups of movable shaft frames. The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate on the bottom end of the toothed plate, and a toothed plate is provided on the bottom end of the toothed plate.

[0005] In the above technical solution, preferably, the water surface inside the sedimentation tank is lower than the height of the annular plate, square openings are opened on the inner side of the cover plate corresponding to the positions of the two groups of hydraulic cylinders, several groups of inflow holes are evenly arranged in a circle, and the wheel and chain are meshed.

[0006] In the above technical solution, preferably, the fixed frame, several groups of turntables, and control grooves are all made of hydrophobic materials, the fixed frame is in contact with the inner wall of the support plate, the gear and rack are meshed, and several groups of control grooves are inclined.

[0007] In the above technical solution, preferably, several groups of control blocks are limited to slide inside several groups of control grooves, several groups of salvage plates are arranged in a circle, and several groups of sliders are limited to move inside positions of several groups of slide grooves.

[0008] In the above technical scheme, preferably, the drainage mechanism includes two groups of fixing frames fixedly arranged on the upper end of the cover plate near the two sides, the inner sides of the two groups of fixing frames are fixedly provided with fixing covers, the outer sides of the fixing covers are movably sleeved with compression plates, a plurality of groups of reset springs are fixedly connected between the fixing covers and the compression plates, the front and rear sides of the fixing covers are movably provided with round rods, the opposite sides of the two groups of round rods are fixedly provided with control rods, the front and rear sides of the compression plates are fixedly provided with fixing plates near the two groups of control rods, the inner sides of the two groups of fixing plates are provided with rails, and the lower sides of the opposite ends of the two groups of control rods are fixedly provided with blocking blocks.

[0009] In the above technical solution, preferably, slots are provided on the outside of the reset spring corresponding to the positions of the two groups of hydraulic cylinders, the compression plate is slidingly limitedly arranged on the outside of the fixed cover, several groups of the reset springs are in a compressed state, and the clamping block is adapted to the clamping rail.

[0010] In the above technical solution, preferably, the cleaning mechanism includes a fixed seat fixedly arranged on the upper end of the cover plate near one side, a second motor is fixedly installed on the upper end of the fixed seat, a connecting frame is fixedly connected to the lower side of the second motor, and a scraper is fixedly connected to one side of the connecting frame.

[0011] In the above technical solution, preferably, the rotating shaft of the second motor is fixedly connected to the connecting frame, and the bottom surface of the scraper plate is at the same height as the cover plate.

[0012] A three-temperature detection device method is also provided, which is used to operate a wastewater treatment method for plastic pipe production, comprising the following steps:

[0013] S1: First, the first motor drives the gear to rotate, pushes the turntable to rotate, cooperates with several groups of control slots to push several groups of control blocks to move closer to each other, pushes several groups of salvage plates fixedly connected to several groups of control slots inward, and sets several groups of slide blocks to limit the sliding of the inner sides of several groups of slide slots, so that several groups of salvage plates cooperate with the fixed frame to form a closed state, so as to prevent large-volume garbage in the wastewater used for plastic pipe production from increasing the types of pollutants in the wastewater, occupying the sedimentation tank space, and avoiding affecting the sewage sedimentation effect;

[0014] S2: When the fixed frame moves to the upper side of the support plate, the compression plate is pressed downward by a plurality of sets of return springs. The compression plate and the fixed frame are on the upper side of the support plate, and the large volume of garbage between the fixed frame and the compression plate is squeezed. The large volume of garbage is drained out by cooperating with a plurality of sets of outflow holes, thereby reducing the time spent on draining.

[0015] S3: Then when the fixed frame moves to the upper side of the support plate, the compression plate is pressed downward by several groups of return springs. The compression plate and the fixed frame are on the upper side of the support plate, and the large volume of garbage between the fixed frame and the compression plate is squeezed. In conjunction with several groups of outflow holes, the drainage of the large volume of garbage is accelerated to reduce the time spent on drainage.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By starting the first motor installed on the front side of the fixed frame, it drives the gear to rotate, and then the meshing rack rotates, so that the turntable cooperates with the several groups of control grooves opened on the inner side thereof to push the several groups of control blocks to move closer, and at the same time, the several groups of sliding blocks fixed at the lower ends of the several groups of salvage plates slide in the inner positions of the several groups of sliding grooves, thereby pushing the several groups of salvage plates to move closer to each other until they are closed, so as to realize the salvage of large-volume garbage in the plastic pipe production wastewater through the fixed frame and the several groups of salvage plates, prevent it from adding additional types of pollutants in the wastewater, and flexibly control the opening and closing of the several groups of salvage plates to reduce the sinking buoyancy, so as to facilitate the use of the plastic pipe production wastewater entering the sedimentation tank multiple times, and is conducive to the sustainable use of the salvage mechanism.

[0018] By starting two groups of hydraulic cylinders, the two groups of movable shaft frames drive the two groups of rotating wheels to move upward, and the two groups of chains meshing with the two groups of rotating wheels pull the two groups of fixed blocks, the fixed frames, and several groups of salvage plates to move upward, while the first motor and the gear move upward on the inner side of the movable groove, so as to salvage the large volume of garbage in the wastewater produced by the plastic pipe out of the water, avoid the large volume of garbage occupying the space inside the sedimentation tank, and prevent it from affecting the sedimentation effect of the wastewater produced by the plastic pipe.

[0019] The compression plate is pressed down by the fixed cover and several groups of return springs to be located in the middle and upper side of the inner side of the support plate, and is moved to the upper side of the support plate in cooperation with the fixed frame and several groups of salvage plates. The fixed frame and several groups of salvage plates provide an upward thrust, and the compression plate provides a downward pressure, so that the two groups of opposite forces squeeze the large volume of garbage salvaged in the middle, so that the moisture inside the garbage is discharged through several groups of outflow holes and the fixed frame and salvage plates, and then flows back to the inner side of the sedimentation tank through several groups of inflow holes, thereby realizing rapid drainage of the salvaged large volume of garbage, reducing waiting time and improving drainage efficiency.

[0020] By starting two groups of hydraulic cylinders to drive the fixed frame and several groups of salvage plates to continue to move upward, thereby pushing the garbage and the compression plate to move upward, compressing several groups of return springs, and at the same time moving the two groups of fixed plates upward, the two groups of control rods drive the two groups of blocks to be stuck in the lower position of the two groups of rails, and fix the compression plate in a relatively upper position, so as to facilitate the subsequent cleaning of large-volume garbage after drainage, without manual operation, with strong automation, simple structure, and clear and concise.

[0021] When the fixed frame and several groups of salvage plates move to be flush with the cover plate, the second motor installed on the upper side of the fixed seat is started to drive the connecting frame to swing back and forth, so that the connecting frame drives the scraper to clean up the large volume of garbage on the upper sides of the fixed frame and several groups of salvage plates, so as to timely scrape off the garbage attached to the upper sides of the fixed frame and several groups of salvage plates to prevent residue, facilitate the long-term use of the device, and reduce the manpower burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment device for plastic pipe production proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of a partially cutaway top view of a wastewater treatment device for plastic pipe production proposed by the present invention;

[0024] Figure 3 This is a partial cross-sectional structural schematic diagram of a salvage mechanism of a wastewater treatment device for plastic pipe production proposed by the present invention;

[0025] Figure 4 A schematic diagram of a partial explosion structure of a salvage mechanism of a wastewater treatment device for plastic pipe production proposed by the present invention;

[0026] Figure 5 A partial cross-sectional structure diagram of a drainage mechanism of a wastewater treatment device for plastic pipe production proposed by the present invention Figure 1 ;

[0027] Figure 6 A partial cross-sectional structure diagram of a drainage mechanism of a wastewater treatment device for plastic pipe production proposed by the present invention Figure 2 ;

[0028] Figure 7 This is a partial cross-sectional structural schematic diagram of a wastewater treatment device for plastic pipe production proposed by the present invention;

[0029] Figure 8 The invention provides a wastewater treatment device for plastic pipe production. Figure 7 Schematic diagram of the enlarged structure of part A.

[0030] In the figure: 1, sedimentation tank; 2, inlet; 3, outlet; 4, annular plate; 5, salvage mechanism; 51, support plate; 52, inflow hole; 53, outflow hole; 54, hydraulic cylinder; 55, movable shaft frame; 56, rotating wheel; 57, chain; 58, fixed block; 59, fixed frame; 510, first motor; 511, gear; 512, opening; 513, turntable; 514, rack; 515, control slot; 51 6. Control block; 517. Salvage plate; 518. Sliding block; 519. Slide groove; 520. Movable groove; 6. Cover plate; 7. Drain mechanism; 71. Fixed frame; 72. Fixed cover; 73. Compression plate; 74. Return spring; 75. Round rod; 76. Control rod; 77. Fixed plate; 78. Rail; 79. Block; 8. Cleaning mechanism; 81. Fixed seat; 82. Second motor; 83. Connecting frame; 84. Scraper. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1-Figure 8A wastewater treatment device for plastic pipe production shown in the figure comprises a sedimentation tank 1, wherein an inlet 2 is fixedly arranged on the front side of the sedimentation tank 1, an outlet 3 is fixedly arranged on one side of the sedimentation tank 1, an annular plate 4 is fixedly arranged on the inner side of the sedimentation tank 1, a salvaging mechanism 5 is arranged on the inner side of the annular plate 4, a cover plate 6 is fixedly arranged on the upper side of the sedimentation tank 1, a drainage mechanism 7 is arranged on the upper side of the cover plate 6, a cleaning mechanism 8 is arranged on the upper side of the cover plate 6 near the lower side of the drainage mechanism 7, the salvaging mechanism 5 comprises a support plate 51 fixedly arranged on the inner side of the annular plate 4, a plurality of groups of inflow holes 52 are opened on the lower side of the support plate 51, a plurality of groups of outflow holes 53 are opened on the upper side of the support plate 51, hydraulic cylinders 54 are fixedly installed on the inner side of the sedimentation tank 1 near the two sides, movable shaft frames 55 are fixedly arranged on the upper ends of the two groups of hydraulic cylinders 54, rotating wheels 56 are movably arranged on the inner sides of the two groups of rotating wheels 56, chains 57 are movably sleeved on the outer sides of the two groups of rotating wheels 56, and the two groups of chains 57 are The lower ends of the opposite sides are fixedly connected with fixed blocks 58, and the lower ends of the two groups of fixed blocks 58 are fixedly provided with fixed frames 59. The front side of the fixed frame 59 is fixedly installed with a first motor 510, and the lower end of the first motor 510 is fixedly connected with a gear 511. An opening 512 is provided on the outer side of the fixed frame 59 corresponding to the position of the gear 511, and a rotating disk 513 is movably provided on the inner side of the fixed frame 59. A rack 514 is fixedly provided on the front side of the rotating disk 513 corresponding to the position of the gear 511. Several groups of control grooves 515 are provided on the inner side of the disk 513, control blocks 516 are movably provided on the inner sides of the several groups of control grooves 515, salvage plates 517 are fixedly provided on the lower ends of the several groups of control blocks 516, sliders 518 are fixedly provided on the lower ends of the several groups of salvage plates 517, sliding grooves 519 are provided on the lower side of the fixed frame 59 corresponding to the positions of the several groups of sliders 518, and movable grooves 520 are provided on the inner sides of the annular plate 4 and the support plate 51 corresponding to the positions of the gears 511.

[0034] The water surface inside the sedimentation tank 1 is lower than the height of the annular plate 4. Square openings are provided on the inner side of the cover plate 6 corresponding to the positions of the two groups of hydraulic cylinders 54. Several groups of inflow holes 52 are evenly arranged in a circle. The rotating wheel 56 and the chain 57 are meshed. The fixed frame 59, several groups of rotating disks 513, and the control grooves 515 are all made of hydrophobic materials. The fixed frame 59 fits the inner wall of the support plate 51. The gear 511 and the rack 514 are meshed. Several groups of control grooves 515 are inclined. Several groups of control blocks 516 are limited to slide on the inner sides of several groups of control grooves 515. Several groups of salvage plates 517 are arranged in a circle. Several groups of sliders 518 are limited to move on the inner sides of several groups of slide grooves 519.

[0035] By starting the first motor 510 installed on the front side of the fixed frame 59, it drives the gear 511 to rotate, and then the meshing rack 514 rotates, so that the turntable 513 cooperates with the several groups of control grooves 515 opened on the inner side thereof to push the several groups of control blocks 516 to move closer, and at the same time, the several groups of sliders 518 fixed at the lower ends of the several groups of salvage plates 517 slide in the inner positions of the several groups of slide grooves 519, thereby pushing the several groups of salvage plates 517 to move closer to each other until they are closed, so as to realize the salvage of large-volume garbage in the wastewater produced by the plastic pipe through the fixed frame 59 and the several groups of salvage plates 517, prevent it from adding additional types of pollutants in the wastewater, and flexibly control the several groups of salvage The opening and closing of the plate 517 reduces the sinking buoyancy, facilitates the use of the plastic pipe production wastewater entering the sedimentation tank 1 multiple times, and is beneficial to the sustainable use of the salvage mechanism 5. Secondly, by starting the two groups of hydraulic cylinders 54, the two groups of movable shaft frames 55 drive the two groups of rotating wheels 56 to move upward, and cooperate with the two groups of chains 57 meshing with the two groups of rotating wheels 56 to pull the two groups of fixed blocks 58 and the fixed frames 59, and several groups of salvage plates 517 to move upward, and the first motor 510 and the gear 511 move upward on the inner side of the movable groove 520 to realize the salvage of large-volume garbage in the plastic pipe production wastewater out of the water, avoid the large-volume garbage occupying the inner space of the sedimentation tank 1, and prevent it from affecting the sedimentation effect of the plastic pipe production wastewater.

[0036] The drainage mechanism 7 includes two groups of fixed frames 71 fixedly arranged on the upper end of the cover plate 6 near the two sides, a fixed cover 72 is fixedly arranged on the inner side of the two groups of fixed frames 71, a compression plate 73 is movably sleeved on the outer side of the fixed cover 72, and a plurality of groups of return springs 74 are fixedly connected between the fixed cover 72 and the compression plate 73, round rods 75 are movably arranged on the front and rear sides of the fixed cover 72, control rods 76 are fixedly arranged on the opposite sides of the two groups of round rods 75, fixed plates 77 are fixedly arranged on the front and rear sides of the compression plate 73 near the two groups of control rods 76, rails 78 are provided on the inner sides of the two groups of fixed plates 77, and a clamping block 79 is fixedly arranged on the lower side of the opposite end of the two groups of control rods 76.

[0037] Notches are provided on the outside of the reset spring 74 corresponding to the positions of the two groups of hydraulic cylinders 54 , and the compression plate 73 is limitedly slidably arranged on the outside of the fixed cover 72 . Several groups of reset springs 74 are in a compressed state, and the clamping block 79 is adapted to the clamping rail 78 .

[0038] The compression plate 73 is pressed down by the fixed cover 72 and several groups of return springs 74 to be located at the middle and upper side of the inner side of the support plate 51, and at the same time, it cooperates with the fixed frame 59 and several groups of salvage plates 517 to move to the upper side of the support plate 51, and the fixed frame 59 and several groups of salvage plates 517 provide an upward thrust, and the compression plate 73 provides a downward pressure, so that the two groups of opposite forces squeeze the large volume of garbage salvaged in the middle, so that the water inside the garbage is discharged through the several groups of outflow holes 53 and the fixed frame 59 and the salvage plates 517, and then flows back to the inner side of the sedimentation tank 1 through the several groups of inflow holes 52. The large volume of garbage salvaged can be drained quickly, the waiting time can be reduced, and the drainage efficiency can be improved. Then, the two groups of hydraulic cylinders 54 are started to drive the fixed frame 59 and several groups of salvage plates 517 to continue to move upward, thereby pushing the garbage and the compression plate 73 to move upward, compressing several groups of return springs 74, and at the same time moving the two groups of fixed plates 77 upward, so that the two groups of control rods 76 drive the two groups of blocks 79 to be stuck in the lower position of the two groups of rails 78, and fix the compression plate 73 in a relatively upper position, so as to facilitate the subsequent cleaning of the large volume of garbage after drainage, without manual operation, with strong automation, simple structure, and clear and concise operation.

[0039] The cleaning mechanism 8 includes a fixing seat 81 fixedly arranged on the upper end of the cover plate 6 near one side, a second motor 82 is fixedly mounted on the upper end of the fixing seat 81, a connecting frame 83 is fixedly connected to the lower side of the second motor 82, and a scraper 84 is fixedly connected to one side of the connecting frame 83.

[0040] The rotating shaft of the second motor 82 is fixedly connected to the connecting frame 83 , and the bottom surface of the scraper 84 is at the same height as the cover plate 6 .

[0041] When the fixed frame 59 and the several groups of salvage plates 517 move to be flush with the cover plate 6, the second motor 82 installed on the upper side of the fixed seat 81 is started to drive the connecting frame 83 to swing back and forth, so that the connecting frame 83 drives the scraper 84 to clean up the large volume of garbage on the upper side of the fixed frame 59 and the several groups of salvage plates 517, so as to timely scrape off the garbage attached to the upper side of the fixed frame 59 and the several groups of salvage plates 517 to prevent residue, facilitate the long-term use of the device, and reduce the manpower burden.

[0042] A three-temperature detection device method is also provided, which is used to operate a wastewater treatment method for plastic pipe production, comprising the following steps:

[0043] S1: First, the first motor 510 drives the gear 511 to rotate, pushes the turntable 513 to rotate, cooperates with the several groups of control slots 515 to push the several groups of control blocks 516 to move closer to each other, pushes the several groups of salvage plates 517 fixedly connected to the several groups of control slots 515 inward, and sets the inner side of the several groups of slide slots 519 by the several groups of sliders 518 to limit the sliding, so that the several groups of salvage plates 517 cooperate with the fixed frame 59 to form a closed state, so as to prevent the large volume of garbage in the wastewater produced by the plastic pipe from increasing the types of pollutants in the wastewater, occupying the sedimentation tank space, and avoiding affecting the sewage sedimentation effect;

[0044] S2: Then when the fixed frame 59 moves to the upper side of the support plate 51, the compression plate 73 is pressed downward by the plurality of return springs 74, and the compression plate 73 and the fixed frame 59 are both on the upper side of the support plate 51, so as to squeeze the large volume of garbage between the fixed frame 59 and the compression plate 73, and cooperate with the plurality of outflow holes 53 to accelerate the drainage of the large volume of garbage, thereby reducing the time consumed in the drainage;

[0045] S3: Then when the fixed frame 59 moves to the upper side of the support plate 51, the compression plate 73 is pressed downward by several groups of return springs 74. The compression plate 73 and the fixed frame 59 are on the upper side of the support plate 51, and the large volume of garbage between the fixed frame 59 and the compression plate 73 is squeezed, and the drainage of the large volume of garbage is accelerated in cooperation with several groups of outflow holes 53, thereby reducing the time spent on drainage.

[0046] Working principle: When in use, first start the first motor 510 installed on the front side of the fixed frame 59 to drive the gear 511 to rotate, and then the meshing rack 514 is rotated, so that the turntable 513 cooperates with the several groups of control grooves 515 opened on the inner side thereof to push the several groups of control blocks 516 to move closer, and at the same time, the several groups of sliders 518 fixed at the lower ends of the several groups of salvage plates 517 are limited and slide in the inner positions of the several groups of slide grooves 519, thereby pushing the several groups of salvage plates 517 to move closer to each other until they are closed, so as to realize the salvage of large-volume garbage in the wastewater produced by the plastic pipe through the fixed frame 59 and the several groups of salvage plates 517, prevent it from adding additional types of pollutants in the wastewater, and flexibly control the expansion and contraction of the several groups of salvage plates 517. The buoyancy of sinking is reduced, which is convenient for the use of the plastic pipe production sewage entering the sedimentation tank 1 multiple times, and is conducive to the sustainable use of the salvage mechanism 5. Secondly, by starting the two groups of hydraulic cylinders 54, the two groups of movable shaft frames 55 drive the two groups of rotating wheels 56 to move upward, and the two groups of chains 57 meshing with the two groups of rotating wheels 56 pull the two groups of fixed blocks 58 and the fixed frames 59, and several groups of salvage plates 517 to move upward, and the first motor 510 and the gear 511 move upward on the inner side of the movable groove 520 to realize the salvage of large-volume garbage in the plastic pipe production sewage out of the water, so as to avoid the large-volume garbage occupying the inner space of the sedimentation tank 1, thereby preventing it from affecting the sedimentation effect of the plastic pipe production sewage. In addition, the fixed cover 72 and several groups of return springs 74 are used to press The compression plate 73 is pressed downward to be located at the middle and upper side of the inner side of the support plate 51, and at the same time, the fixed frame 59 and the plurality of salvage plates 517 are moved to the upper side of the support plate 51 in cooperation with the fixed frame 59 and the plurality of salvage plates 517, and an upward thrust is provided by the fixed frame 59 and the plurality of salvage plates 517, and a downward pressure is provided by the compression plate 73, so that the two groups of opposite forces squeeze the large volume of garbage salvaged in the middle, so that the water inside the garbage is discharged through the plurality of outflow holes 53 and the fixed frame 59 and the salvage plates 517, and then flows back to the inner side of the sedimentation tank 1 through the plurality of inflow holes 52, so as to realize the rapid drainage of the large volume of garbage salvaged, reduce the waiting time, and improve the drainage efficiency, and then start the two groups of hydraulic cylinders 54 to drive the fixed frame 59 and the plurality of salvage plates 517 to continue to drain. The rubbish that has been drained away is removed by the second motor 82 installed on the upper side of the fixing seat 81, thereby driving the connecting frame 83 to swing back and forth, thereby making the connecting frame 83 drive the scraper 84 to clean the rubbish on the upper side of the fixing frame 59 and the rubbish on the upper side of the fixing frame 59 and the rubbish on the upper side of the fixing seat 81.The garbage attached to the upper side of the fixed frame 59 and the plurality of groups of salvage plates 517 can be scraped off in time to prevent residue, facilitate the long-term use of the device, and reduce the burden of manpower.

[0047] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be connected directly or indirectly through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the description of this specification, if the terms "one embodiment", "some embodiments", "specific embodiments" and the like appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A wastewater treatment device for plastic pipe production, comprising a sedimentation tank (1), characterized in that: An inlet (2) is fixedly provided at the front side of the sedimentation tank (1), a water outlet (3) is fixedly provided at one side of the sedimentation tank (1), an annular plate (4) is fixedly provided at the inner side of the sedimentation tank (1), a salvaging mechanism (5) is provided at the inner side of the annular plate (4), a cover plate (6) is fixedly provided at the upper side of the sedimentation tank (1), a drainage mechanism (7) is provided at the upper side of the cover plate (6), a cleaning mechanism (8) is provided at a position close to the lower side of the drainage mechanism (7) on the upper side of the cover plate (6), and the salvaging mechanism (5) comprises a salvaging mechanism (5) fixedly provided at the annular plate (4) and a cleaning mechanism (8) disposed at the lower side of the drainage mechanism (7). The inner support plate (51) has a plurality of inlet holes (52) formed on the lower side of the support plate (51), and a plurality of outlet holes (53) formed on the upper side of the support plate (51). Hydraulic cylinders (54) are fixedly installed on the inner side of the sedimentation tank (1) near the two sides. The upper ends of the two groups of hydraulic cylinders (54) are fixedly provided with movable shaft frames (55). The inner sides of the two groups of movable shaft frames (55) are movably provided with rotating wheels (56). The outer sides of the two groups of rotating wheels (56) are movably sleeved with chains (57). The lower ends of the two groups of chains (57) on the opposite sides are A fixing block (58) is fixedly connected, a fixing frame (59) is fixedly arranged at the lower end of the two groups of fixing blocks (58), a first motor (510) is fixedly installed on the front side of the fixing frame (59), a gear (511) is fixedly connected to the lower end of the first motor (510), an opening (512) is provided on the outer side of the fixing frame (59) corresponding to the position of the gear (511), a rotating disk (513) is movably arranged on the inner side of the fixing frame (59), a rack (514) is fixedly arranged on the front side of the rotating disk (513) corresponding to the position of the gear (511), and the rotating disk (513) is fixedly arranged at the position of the gear (511). A plurality of control grooves (515) are provided on the inner side of the plurality of control grooves (515), a control block (516) is movably provided on the inner side of the plurality of control grooves (515), a salvage plate (517) is fixedly provided on the lower end of the plurality of control blocks (516), a slider (518) is fixedly provided on the lower end of the plurality of salvage plates (517), a slide groove (519) is provided on the lower side of the fixed frame (59) at positions corresponding to the plurality of sliders (518), and a movable groove (520) is provided on the inner side of the annular plate (4) and the support plate (51) at positions corresponding to the gear (511); The drainage mechanism (7) comprises two groups of fixing frames (71) fixedly arranged at the upper end of the cover plate (6) near both sides, the inner sides of the two groups of fixing frames (71) are fixedly provided with fixing covers (72), the outer sides of the fixing covers (72) are movably sleeved with compression plates (73), a plurality of groups of return springs (74) are fixedly connected between the fixing covers (72) and the compression plates (73), the front and rear sides of the fixing covers (72) are movably provided with round rods (75), the opposite sides of the two groups of round rods (75) are fixedly provided with control rods (76), the front and rear sides of the compression plates (73) are fixedly provided with fixing plates (77) near the two groups of control rods (76), the inner sides of the two groups of fixing plates (77) are provided with clamping rails (78), and the lower sides of the opposite ends of the two groups of control rods (76) are fixedly provided with clamping blocks (79); The cleaning mechanism (8) comprises a fixing seat (81) fixedly arranged at an upper end of the cover plate (6) near one side, a second motor (82) being fixedly mounted on the upper end of the fixing seat (81), a connecting frame (83) being fixedly connected to the lower side of the second motor (82), and a scraper (84) being fixedly connected to one side of the connecting frame (83).

2. A wastewater treatment equipment for plastic pipe production according to claim 1, characterized in that: The water surface inside the sedimentation tank (1) is lower than the height of the annular plate (4), the inner side of the cover plate (6) is provided with square openings corresponding to the positions of the two groups of hydraulic cylinders (54), the plurality of groups of inflow holes (52) are evenly arranged in a circular shape, and the rotating wheel (56) and the chain (57) are meshed.

3. The wastewater treatment equipment for plastic pipe production according to claim 1 is characterized by: The fixed frame (59), the plurality of groups of rotating disks (513), and the control grooves (515) are all made of hydrophobic materials; the fixed frame (59) is in contact with the inner wall of the support plate (51); the gear (511) and the rack (514) are meshed; and the plurality of groups of control grooves (515) are inclined.

4. The wastewater treatment equipment for plastic pipe production according to claim 1, characterized in that: A plurality of control blocks (516) are limitedly slid inside a plurality of control grooves (515), a plurality of salvage plates (517) are arranged in a circle, and a plurality of slide blocks (518) are limitedly movable inside a plurality of slide grooves (519).

5. The wastewater treatment equipment for plastic pipe production according to claim 1, characterized in that: The outer side of the return spring (74) is provided with slots corresponding to the positions of the two groups of hydraulic cylinders (54); the compression plate (73) is limitedly slidably arranged on the outer side of the fixed cover (72); a plurality of groups of the return springs (74) are in a compressed state; and the clamping block (79) is adapted to fit the clamping rail (78).

6. The wastewater treatment equipment for plastic pipe production according to claim 1, characterized in that: The rotating shaft of the second motor (82) is fixedly connected to the connecting frame (83), and the bottom surface of the scraper (84) is at the same height as the cover plate (6).

7. A method for treating wastewater used in the production of plastic pipes, used to operate a wastewater treatment device used in the production of plastic pipes according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: First, the gear (511) is driven to rotate by the first motor (510), so as to push the rotating disk (513) to rotate, and the control blocks (516) are pushed closer to each other in cooperation with the control grooves (515), so as to push the salvage plates (517) fixedly connected to the control grooves (515) inwardly, and the sliding blocks (518) are limitedly slid to the inner sides of the slide grooves (519) so as to close the salvage plates (517) in cooperation with the fixed frame (59), so as to prevent the large volume of garbage in the wastewater produced by the plastic pipe from increasing the types of pollutants in the wastewater, occupying the space of the sedimentation tank, and avoiding affecting the sedimentation effect of the wastewater; S2: When the fixed frame (59) moves to the upper side of the support plate (51), the compression plate (73) is pressed downward by the plurality of return springs (74). The compression plate (73) and the fixed frame (59) are located on the upper side of the support plate (51), and the large volume of garbage between the fixed frame (59) and the compression plate (73) is squeezed, and the plurality of outflow holes (53) are used to accelerate the drainage of the large volume of garbage, thereby reducing the time spent on the drainage. S3: Finally, the second motor (82) drives the connecting frame (83) to swing back and forth, so that the connecting frame (83) drives the scraper (84) to swing back and forth, and the scraper (84) cleans the fixed frame (59) and the plurality of groups of salvage plates (517) moved to the same height as the cover plate (6) back and forth, and scrapes away the garbage attached to the upper side of the fixed frame (59) and the plurality of groups of salvage plates (517) to prevent residue, thereby facilitating the long-term use of the device, achieving high automation, and reducing the burden of manpower.

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