Sewage pretreatment equipment for sewage treatment plant

Abstract

The invention relates to the technical field of sewage pretreatment, and discloses sewage pretreatment equipment for a sewage treatment plant, the sewage pretreatment equipment comprises a sewage treatment box, a mixing pipe is fixedly assembled on the side surface of the sewage treatment box, and a sewage discharge frame is fixedly assembled on one side, away from the sewage treatment box, of the mixing pipe; a sewage inlet pipe is fixedly assembled on the side, away from the mixing pipe, of the sewage discharging frame. When a filter plate is accumulated due to impurities conveyed by a sewage inlet pipe, water is continuously supplied into an auxiliary pipe from the interior of the sewage inlet pipe, so that a circular plate is pushed to slide in the auxiliary pipe, a sliding barrel is utilized to drive the side face of a push frame to slide in the inner wall of a sewage discharging frame through a connecting rod, and the push frame is utilized to push the impurities on the surface of the filter plate to move upwards; and the auxiliary air cylinder drives the outer edge of the discharging plate to slide in the inner wall of the cylinder and the inner wall of the sewage discharging frame, an electric push rod is driven to drive a convex rod to move upwards through a push plate and a circular plate, and therefore it is guaranteed that water in the sewage inlet pipe is discharged through a filter plate.

Description

Technical Field

[0001] The invention relates to the technical field of sewage pretreatment, in particular to sewage pretreatment equipment for a sewage treatment plant. Background Art

[0002] Sewage pretreatment in a sewage plant refers to the preliminary purification of sewage during the sewage treatment process to remove suspended matter, sediment and other impurities, providing better conditions for subsequent biological treatment and deep treatment.

[0003] When traditional sewage treatment plants perform sewage pretreatment, they filter the sewage and discharge it into a sewage treatment pool. Then, the drugs required for sewage treatment are added into the sewage treatment pool to contact the sewage, and the drugs and sewage are stirred and mixed to assist in sewage pretreatment. The pretreated sewage is then discharged to the outside of the device.

[0004] However, during operation, the traditional device only uses a simple filter screen and a stirring rack to assist in filtering and stirring the sewage, which makes the filter screen susceptible to clogging due to the accumulation of impurities in the sewage, further affecting the stable supply of sewage. The filter screen needs to be cleaned in a timely manner, which affects the operating efficiency of the device. In addition, the traditional sewage is mixed with drugs in the sewage treatment tank, which makes it difficult to ensure that a large amount of sewage can be efficiently purified, thereby affecting the effective purification of the sewage. Summary of the invention

[0005] The present invention provides a sewage pretreatment device for a sewage treatment plant to solve the problems raised by the above background technology.

[0006] The present invention provides the following technical scheme: a sewage pretreatment equipment for a sewage treatment plant comprises a sewage treatment box, a side of the sewage treatment box is fixedly equipped with a mixing tube, a side of the mixing tube away from the sewage treatment box is fixedly equipped with a sewage discharge frame, a side of the sewage discharge frame away from the mixing tube is fixedly equipped with a sewage inlet pipe, an outer edge of the sewage inlet pipe near the bottom is fixedly equipped with an auxiliary pipe, an outer edge of the auxiliary pipe is provided with a slide groove, an inner wall of the slide groove is slidably connected with a slider, an outer edge of the slider is fixedly equipped with a slide cylinder, and the inner wall of the slide cylinder is slidably sleeved with the outer edge of the auxiliary pipe, the outer edge of the slide cylinder is rotatably connected with a connecting rod, an end of the connecting rod away from the slide cylinder is rotatably connected with a push rack, and the side of the push rack is slidably connected with the inner wall of the sewage discharge frame, a filter plate is fixedly sleeved on the inner wall of the mixing tube near the sewage discharge frame, a reciprocating screw rod assembly is provided on the side of the filter plate, and an adjusting cylinder is provided on the outer edge of the reciprocating screw rod assembly.

[0007] As a preferred technical solution of the present invention, a bidirectional rubber sealing plug is fixedly sleeved on the inner wall of the auxiliary pipe near one end of the sewage inlet pipe, a circular plate is slidably sleeved on the inner wall of the auxiliary pipe, and the outer edge of the circular plate is fixedly sleeved on the inner wall of the slider, and a convex rod is fixedly mounted on the side of the circular plate; The reciprocating screw assembly includes a reciprocating screw body and a limit block, and the side of the reciprocating screw body and the side of the filter plate are fixedly assembled, the inner wall of the reciprocating screw body is threadedly connected to the bottom of the limit block, and the end of the limit block away from the reciprocating screw body is fixedly sleeved with the inner wall of the adjustment cylinder.

[0008] As a preferred technical solution of the present invention, an electric push rod is fixedly mounted on the inner wall of the auxiliary tube near the bottom, a push plate is fixedly sleeved on the output end of the electric push rod, and the outer edge of the push plate is slidably sleeved on the inner wall of the auxiliary tube.

[0009] As a preferred technical solution of the present invention, a double-contact switch 1 is fixedly installed on the inner wall of the sewage discharge frame near the top, a double-contact switch 2 is fixedly installed on the inner wall of the push rack, and the double-contact switch 2 is electrically connected to the electric push rod, a cylinder is fixedly installed on the outer edge of the mixing tube, and the cylinder is electrically connected to the double-contact switch 1, a discharge plate is fixedly sleeved on the output end of the cylinder, a cylinder is fixedly installed on the side of the sewage discharge frame, and the inner wall of the cylinder and the inner wall of the sewage discharge frame are slidably sleeved with the outer edge of the discharge plate, the shape and size of the outer edge of the discharge plate near the bottom are adapted to the shape and size of the inner wall at the top of the push rack, a single-petal sealing gasket is fixedly installed on the inner wall of the sewage discharge frame, and the inner wall of the single-petal sealing gasket is slidably connected to the side of the push rack.

[0010] As a preferred technical solution of the present invention, a fan blade is fixedly sleeved on the outer edge of the adjusting cylinder, and the outer edge of the fan blade is rotatably sleeved on the inner wall of the mixing tube, a medicine inlet pipe is fixedly sleeved on the inner wall of the mixing tube, a threaded stirring blade is fixedly installed on the side of the adjusting cylinder, and a brush plate is fixedly sleeved on the outer edge of the threaded stirring blade.

[0011] As a preferred technical solution of the present invention, an auxiliary frame is fixedly connected to one end of the mixing tube away from the sewage discharge frame, and the inner wall of the auxiliary frame is movably connected to the outer edge of the threaded stirring blade, and a stirring rod is fixedly installed on one end of the threaded stirring blade away from the sewage discharge frame, and an auxiliary rod is fixedly installed on the side of the stirring rod.

[0012] As a preferred technical solution of the present invention, the side of the inner wall of the sewage treatment tank is movably connected with an L-shaped upper plate, the side of the inner wall of the L-shaped upper plate is provided with a limiting groove, and the inner wall of the limiting groove is movably connected to the outer edge of the auxiliary rod, the inner wall of the sewage treatment tank is fixedly equipped with an L-shaped lower plate, and when the outer edge of the auxiliary rod is at the top of the inner wall of the limiting groove, the bottom of the inner wall of the L-shaped lower plate overlaps the bottom of the L-shaped upper plate.

[0013] As a preferred technical solution of the present invention, a plurality of filter plates 1 are fixedly sleeved on the inner wall of the L-shaped upper plate, a plurality of filter plates 2 are fixedly sleeved on the inner wall of the L-shaped lower plate, and the shape, size and quantity of the outer edges of filter plates 2 and 1 are exactly the same.

[0014] As a preferred technical solution of the present invention, a groove is provided at the bottom of the L-shaped upper plate, a protrusion is fixedly mounted at the bottom of the inner wall of the L-shaped lower plate, and the shape and size of the outer edge of the protrusion are adapted to the shape and size of the inner wall of the groove.

[0015] As a preferred technical solution of the present invention, the filter sheet is provided with two grooves adjacent to each other along the X-axis, and the number of the grooves is consistent with the number of the protrusions. A drain pipe is fixedly sleeved on the inner wall of the sewage treatment tank near the bottom.

[0016] The present invention has the following beneficial effects: 1. The sewage treatment plant uses sewage pretreatment equipment, which assists sewage to pass through the filter plate to the inside of the mixing tube through the sewage inlet pipe. When the filter plate is accumulated by impurities transmitted by the sewage inlet pipe, the sewage inlet pipe continuously supplies water, causing the water inside the sewage inlet pipe to flush the inner wall of the two-way rubber sealing plug to the inside of the auxiliary pipe, thereby pushing the circular plate to slide inside the auxiliary pipe, and using the circular plate to drive the slide cylinder to move through the slider, and then using the slide cylinder to drive the side of the push frame to slide in the inner wall of the sewage discharge frame through the connecting rod, and using the push frame to push the impurities on the surface of the filter plate to move up, and The single-petal sealing plug moves up until the double-contact switch 1 and the double-contact switch 2 are connected, so that the auxiliary cylinder drives the outer edge of the discharge plate to slide in the inner wall of the cylinder and the inner wall of the sewage discharge frame, thereby assisting the impurities inside the sewage discharge frame to be discharged from the outside of the device, and driving the electric push rod to move up through the push plate and the circular plate to drive the convex rod, and then using the convex rod and the circular plate to assist the impurities on the inner wall of the two-way rubber sealing plug and the water inside the auxiliary pipe to be discharged into the sewage inlet pipe, and when the circular plate slides up, it drives the slider to move down and reset, thereby ensuring that the water inside the sewage inlet pipe is discharged through the filter plate.

[0017] 2. The sewage pretreatment equipment for the sewage treatment plant uses a filter plate in conjunction with a reciprocating screw assembly, and uses the filter plate to assist in fixing the reciprocating screw assembly. The water inside the sewage inlet pipe pushes the regulating cylinder to rotate on the outer edge of the reciprocating screw assembly through the fan blades and the threaded stirring blades, so that the reciprocating screw assembly assists the regulating cylinder to reciprocate, and when the medicine inlet pipe is used to supply medicine to the inside of the mixing tube, the reciprocating screw assembly rotates and moves, while assisting in stirring and mixing the medicine and sewage, and using the brush plate to scrub and clean the impurities on the inner wall of the mixing tube as the reciprocating screw assembly rotates; When the reciprocating screw assembly drives the stirring rod to rotate, the stirring rod drives the auxiliary rod to rotate, and then the auxiliary rod drives the L-shaped upper plate to move back and forth inside the sewage treatment tank, and then when the filter plate 1 and the filter plate 2 are connected, the auxiliary pre-treated sewage is filtered through the filter plate 1 and the filter plate 2 and discharged to the bottom of the inner wall of the sewage treatment tank, and discharged to the outside through the drain pipe, and when the L-shaped upper plate moves, the groove and the protrusion are pushed to connect and separate, thereby driving the L-shaped upper plate to vibrate on the top of the L-shaped lower plate, and then assisting the filter plate 1 and the filter plate 2 to vibrate, and assisting the inner wall of the filter plate 1 and the filter plate 2 to clean impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mixing tube of the present invention; Figure 3 It is a schematic diagram of the front cross-section structure of the cylinder of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the front cross-section structure of the sewage discharge frame of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 This is a schematic diagram of the L-shaped lower plate and the protrusion structure of the present invention; Figure 8 This is a schematic diagram of the L-shaped upper plate and groove structure of the present invention; Fig. 9 It is a schematic diagram of the front cross-section structure of the present invention.

[0019] In the figure: 1. Sewage treatment tank; 2. Mixing pipe; 3. Sewage discharge frame; 4. Sewage inlet pipe; 5. Auxiliary pipe; 6. Round plate; 7. Slide; 8. Slide cylinder; 9. Sliding block; 10. Connecting rod; 11. Pushing frame; 12. Filter plate; 13. Reciprocating screw rod assembly; 14. Adjusting cylinder; 15. Fan blade; 16. Threaded stirring blade; 17. Brush plate; 18. Electric push rod; 19. Push plate; 20. Protruding rod; 21. Two-way Rubber sealing plug; 22, cylinder; 23, discharge plate; 24, cylinder; 25, double contact switch 1; 26, double contact switch 2; 27, single-petal sealing pad; 28, medicine inlet pipe; 29, auxiliary rack; 30, stirring rod; 31, L-shaped upper plate; 32, limit groove; 33, auxiliary rod; 34, filter plate 1; 35, groove; 36, L-shaped lower plate; 37, filter plate 2; 38, bump; 39, drain pipe; 1301. Reciprocating screw rod body; 1302. Limit block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 9 A sewage pretreatment device for a sewage treatment plant comprises a sewage treatment tank 1, a mixing tube 2 is fixedly mounted on the side of the sewage treatment tank 1, a sewage discharge frame 3 is fixedly mounted on the side of the mixing tube 2 away from the sewage treatment tank 1, a sewage inlet pipe 4 is fixedly mounted on the side of the sewage discharge frame 3 away from the mixing tube 2, an auxiliary pipe 5 is fixedly mounted on the outer edge of the sewage inlet pipe 4 near the bottom, a slide groove 7 is provided on the outer edge of the auxiliary pipe 5, a slider 9 is slidably connected to the inner wall of the slide groove 7, a slide cylinder 8 is fixedly mounted on the outer edge of the slider 9, and the inner wall of the slide cylinder 8 is slidably sleeved with the outer edge of the auxiliary pipe 5, a connecting rod 10 is rotatably connected to the outer edge of the slide cylinder 8, and the end of the connecting rod 10 away from the slide cylinder 8 is rotatably connected to A push frame 11 is provided, and the side of the push frame 11 is slidably connected to the inner wall of the sewage discharge frame 3. A filter plate 12 is fixedly sleeved on the inner wall of the mixing tube 2 close to the sewage discharge frame 3. A reciprocating screw assembly 13 is provided on the side of the filter plate 12. An adjusting cylinder 14 is provided on the outer edge of the reciprocating screw assembly 13. By cooperating with the slider 9 and the slide cylinder 8, the side of the slider 9 is used to slide in the inner wall of the slide groove 7, so that the slider 9 is used to drive the slide cylinder 8 to move. When the side of the slider 9 slides to the top of the inner wall of the slide groove 7 and the bottom of the inner wall of the slide groove 7, the inner wall of the slide cylinder 8 is always in a covering state with the inner wall of the slide groove 7, thereby preventing the slider 9 from moving downward and causing water leakage inside the auxiliary pipe 5.

[0022] In a preferred embodiment, the inner wall of the auxiliary pipe 5 near one end of the sewage inlet pipe 4 is fixedly sleeved with a two-way rubber sealing plug 21, the inner wall of the auxiliary pipe 5 is slidably sleeved with a circular plate 6, and the outer edge of the circular plate 6 is fixedly sleeved with the inner wall of the slider 9, and the side of the circular plate 6 is fixedly equipped with a convex rod 20. By adding the two-way rubber sealing plug 21, the inner wall of the two-way rubber sealing plug 21 is provided with a notch. Under the rubber elasticity of the two-way rubber sealing plug 21 itself, the notch is squeezed by the rubber, and the two-way rubber sealing plug 21 is assisted to form a sealing state. When the filter plate 12 is blocked, the water inside the sewage inlet pipe 4 is blocked by the two-way rubber. The rubber sealing plug 21 generates pressure, thereby impacting the middle notch of the two-way rubber sealing plug 21, forcing the two-way rubber sealing plug 21 to expand, so that sewage is supplied to the inside of the auxiliary pipe 5, and the circular plate 6 is pushed down. By adding the convex rod 20, when the circular plate 6 moves up, the circular plate 6 drives the convex rod 20 to move up, so that the outer edge of the convex rod 20 passes through the notch of the two-way rubber sealing plug 21, thereby preventing impurities from accumulating in the notch of the two-way rubber sealing plug 21. When the circular plate 6 drives the convex rod 20 to move up, the circular plate 6 pushes the sewage between the inner wall of the auxiliary pipe 5 and the top of the circular plate 6 to be discharged to the inside of the sewage inlet pipe 4; The reciprocating screw assembly 13 includes a reciprocating screw body 1301 and a limit block 1302, and the side of the reciprocating screw body 1301 and the side of the filter plate 12 are fixedly assembled, the inner wall of the reciprocating screw body 1301 is threadedly connected to the bottom of the limit block 1302, and the end of the limit block 1302 away from the reciprocating screw body 1301 is fixedly sleeved with the inner wall of the adjusting cylinder 14. Through the coordinated use of the reciprocating screw body 1301 and the limit block 1302, the reciprocating screw body 1301 is a form of a three-dimensional cam pair, which is manifested as two thread grooves with the same pitch and opposite rotation direction, and the two ends are connected by a transition curve, and then the limit block 1302 is used to move along the thread groove outside the reciprocating screw body 1301, so that the limit block 1302 drives the adjusting cylinder 14 to reciprocate while the adjusting cylinder 14 rotates.

[0023] In a preferred embodiment, an electric push rod 18 is fixedly installed on the inner wall of the auxiliary pipe 5 near the bottom, and a push plate 19 is fixedly sleeved on the output end of the electric push rod 18, and the outer edge of the push plate 19 is slidably sleeved with the inner wall of the auxiliary pipe 5. By using the electric push rod 18 and the push plate 19 in coordination, the electric push rod 18 is used to push the push plate 19 upward, so that the push plate 19 slides in the inner wall of the auxiliary pipe 5, and then the push plate 19 pushes the circular plate 6 to drive the convex rod 20 to move upward, thereby ensuring that the circular plate 6 stably pushes the water inside the auxiliary pipe 5 to be discharged.

[0024] In a preferred embodiment, the inner wall of the sewage discharge frame 3 near the top is fixedly equipped with a double-contact switch 1 25, the inner wall of the push frame 11 is fixedly equipped with a double-contact switch 26, and the double-contact switch 26 is electrically connected to the electric push rod 18, the outer edge of the mixing tube 2 is fixedly equipped with a cylinder 22, and the cylinder 22 is electrically connected to the double-contact switch 1 25, the output end of the cylinder 22 is fixedly sleeved with a discharge plate 23, the side of the sewage discharge frame 3 is fixedly equipped with a cylinder 24, and the inner wall of the cylinder 24 and the inner wall of the sewage discharge frame 3 are slidably sleeved with the outer edge of the discharge plate 23, the shape and size of the discharge plate 23 near the bottom outer edge are adapted to the shape and size of the inner wall at the top of the push frame 11, the inner wall of the sewage discharge frame 3 is fixedly equipped with a single-flap sealing gasket 27, and the inner wall of the single-flap sealing gasket 27 is slidably connected to the side of the push frame 11, and the double-contact switch 1 25 and the double-contact switch 2 26 are used in coordination, and the double-contact switch 1 25 and The double-contact switch 26 is in contact, and when the double-contact switch 1 25 and the double-contact switch 2 26 are in contact, the lowest point of the inner wall at the top of the push frame 11 is in the same horizontal plane with the lowest point of the inner wall of the cylinder 24 near the bottom and the lowest point of the outer edge of the discharge plate 23 near the bottom, thereby ensuring that the cylinder 22 drives the outer edge of the discharge plate 23 to slide on the inner wall of the cylinder 24 and the inner wall of the sewage discharge frame 3, thereby assisting the impurities inside the sewage discharge frame 3 to be stably discharged to the outside of the device, and the single-petal sealing gasket 27 is made of rubber material, and the side of the single-petal sealing gasket 27 close to the cylinder 22 is separated from the inner wall of the sewage discharge frame 3. Under normal conditions, due to its own elasticity, the side of the single-petal sealing gasket 27 close to the cylinder 22 is tightly attached to the inner wall of the sewage discharge frame 3 to assist in sealing. Under the push of the push frame 11, the impurities on the top of the push frame 11 push the inner wall of the single-petal sealing gasket 27 to open, thereby assisting the impurities to be stably supplied to the inner cavity of the sewage discharge frame 3; Through the coordinated use of the cylinder 22 and the discharge plate 23, when water flows normally inside the filter plate 12, the outer edge of the discharge plate 23 is limited to the inner wall of the sewage frame 3 and the inner wall of the cylinder 24, and the outer edge of the discharge plate 23 away from the end of the cylinder 22 is used to seal the external sewage outlet of the sewage frame 3, and the inner wall of the slide 7 near the middle is fixedly equipped with a contact sensor, so that when the side of the slider 9 moves in the inner wall of the slide 7, the side of the slider 9 contacts the contact sensor, and the contact sensor is electrically connected to the cylinder 22, so that the slider 9 is used to assist in controlling the cylinder 22 to drive the discharge plate 23 to contract and reset, thereby ensuring that impurities can be stably supplied to the top of the single-petal sealing pad 27, thereby avoiding the discharge plate 23 from blocking the impurities and affecting the stable operation of the device.

[0025] In a preferred embodiment, the outer edge of the adjusting cylinder 14 is fixedly sleeved with a fan blade 15, and the outer edge of the fan blade 15 is rotatably sleeved with the inner wall of the mixing tube 2, the inner wall of the mixing tube 2 is fixedly sleeved with a drug inlet pipe 28, and the side of the adjusting cylinder 14 is fixedly equipped with a threaded stirring blade 16, and the outer edge of the threaded stirring blade 16 is fixedly sleeved with a brush plate 17. By adding the fan blade 15 and the threaded stirring blade 16, the fan blade 15 and the threaded stirring blade 16 can be used to drive the adjusting cylinder 14 to reciprocate and rotate on the outer edge of the reciprocating screw assembly 13 under the impact of water flow, and then the threaded stirring blade 16 is used to assist in mixing the drug and sewage, and the threaded stirring blade 16 is used to drive the brush plate 17 to brush the impurities on the inner wall of the mixing tube 2, thereby preventing the impurities from hanging on the inner wall of the mixing tube 2 and affecting the stable operation of the device.

[0026] In a preferred embodiment, an auxiliary frame 29 is fixedly connected to one end of the mixing tube 2 away from the sewage discharge frame 3, and the inner wall of the auxiliary frame 29 is movably connected to the outer edge of the threaded stirring blade 16, and a stirring rod 30 is fixedly installed on one end of the threaded stirring blade 16 away from the sewage discharge frame 3, and an auxiliary rod 33 is fixedly installed on the side of the stirring rod 30. Through the coordinated use of the auxiliary frame 29 and the threaded stirring blade 16, the auxiliary frame 29 is used to auxiliary support the threaded stirring blade 16, thereby ensuring that when the threaded stirring blade 16 moves and rotates with the adjusting cylinder 14, the threaded stirring blade 16 drives the stirring rod 30 to move and rotate, thereby utilizing the stirring rod 30 to auxiliary stir the medicine and sewage inside the sewage treatment tank 1.

[0027] In a preferred embodiment, the side of the inner wall of the sewage treatment tank 1 is movably connected with an L-shaped upper plate 31, and a limiting groove 32 is provided on the side of the inner wall of the L-shaped upper plate 31, and the inner wall of the limiting groove 32 is movably sleeved with the outer edge of the auxiliary rod 33, and the inner wall of the sewage treatment tank 1 is fixedly equipped with an L-shaped lower plate 36, and when the outer edge of the auxiliary rod 33 is at the top of the inner wall of the limiting groove 32, the bottom of the inner wall of the L-shaped lower plate 36 overlaps with the bottom of the L-shaped upper plate 31, and through the cooperation of the L-shaped upper plate 31 and the limiting groove 32, the threaded stirring blade 16 is used to drive the side of the L-shaped upper plate 31 to slide back and forth in the inner wall of the sewage treatment tank 1 through the stirring rod 30.

[0028] In a preferred embodiment, a plurality of filter plates 1 34 are fixedly sleeved on the inner wall of the L-shaped upper plate 31, and a plurality of filter plates 2 37 are fixedly sleeved on the inner wall of the L-shaped lower plate 36, and the shape, size and number of the outer edges of the filter plates 2 37 and the filter plates 1 34 are completely consistent. By using a plurality of filter plates 1 34 in coordination with a plurality of filter plates 2 37, the bottom of the L-shaped upper plate 31 slides on the bottom of the inner wall of the L-shaped lower plate 36. When the filter plates 1 34 and the filter plates 2 37 are in contact with each other, the water inside the sewage treatment tank 1 is assisted to be filtered through the filter plates 1 34 and the filter plates 2 37, and discharged to the inner wall of the sewage treatment tank 1 near the bottom.

[0029] In a preferred embodiment, a groove 35 is provided at the bottom of the L-shaped upper plate 31, and a protrusion 38 is fixedly installed at the bottom of the inner wall of the L-shaped lower plate 36, and the shape and size of the outer edge of the protrusion 38 are adapted to the shape and size of the inner wall of the groove 35. By using the protrusion 38 in coordination with the groove 35, the inner wall of the groove 35 is fitted with the outer edge of the protrusion 38, thereby assisting the bottom of the L-shaped upper plate 31 to fit with the bottom of the inner wall of the L-shaped lower plate 36, and when the L-shaped upper plate 31 moves, the outer edge of the protrusion 38 and the inner wall of the groove 35 are overlapped and separated, thereby assisting the vibration of the filter plate 1 34, and when the L-shaped upper plate 31 falls, it assists in driving the filter plate 2 37 to vibrate, thereby assisting in cleaning impurities in the filter plates 1 34 and 37.

[0030] In a preferred embodiment, two grooves 35 are provided between adjacent filter plates 1 34 along the X-axis, and the number of the grooves 35 is consistent with the number of the protrusions 38. A drain pipe 39 is fixedly sleeved on the inner wall of the sewage treatment tank 1 near the bottom. By providing two grooves 35 between two adjacent filter plates 1 34 along the X-axis, the protrusions 38 and the grooves 35 are assisted to dock and separate, thereby assisting the vibration of the filter plates 1 34 and 37, thereby promoting the movement of impurities and preventing the impurities from affecting the stable drainage of the filter plates 1 34 and 37. When the filter plates 1 34 are transferred along the L-shaped upper plate 31, the water inside the sewage treatment tank 1 is pushed to shake, thereby assisting the mixing of the medicine and the sewage again.

[0031] Working principle: when the device is in use, the sewage is assisted by the sewage inlet pipe 4 to be transmitted to the inside of the mixing tube 2 through the filter plate 12. When the filter plate 12 is accumulated by the impurities transmitted by the sewage inlet pipe 4, the sewage inlet pipe 4 is continuously supplied with water, causing the water inside the sewage inlet pipe 4 to flush the inner wall of the two-way rubber sealing plug 21 to the inside of the auxiliary pipe 5, thereby pushing the circular plate 6 to slide inside the auxiliary pipe 5, and using the circular plate 6 to drive the slide cylinder 8 to move through the slider 9, and then using the slide cylinder 8 to drive the side of the push frame 11 to slide in the inner wall of the sewage discharge frame 3 through the connecting rod 10, and using the push frame 11 to push the impurities on the surface of the filter plate 12 to move upward, and pass through the single-petal seal. The plug moves up until the double-contact switch 1 25 and the double-contact switch 2 26 are connected, so that the auxiliary cylinder 22 drives the outer edge of the discharge plate 23 to slide in the inner wall of the cylinder 24 and the inner wall of the sewage discharge frame 3, thereby assisting the impurities in the sewage discharge frame 3 to be discharged from the outside of the device, and drives the electric push rod 18 to drive the convex rod 20 to move up through the push plate 19 and the circular plate 6, and then uses the convex rod 20 and the circular plate 6 to assist the two-way rubber sealing plug 21 The inner wall impurities and the internal water of the auxiliary pipe 5 are discharged into the interior of the sewage inlet pipe 4, and when the circular plate 6 moves up and slides, it drives the slider 9 to move down and reset, thereby ensuring that the water in the sewage inlet pipe 4 is discharged through the filter plate 12, and using the filter The plate 12 assists the reciprocating screw assembly 13 to be fixed, and the water inside the sewage inlet pipe 4 pushes the adjusting cylinder 14 to rotate on the outer edge of the reciprocating screw assembly 13 through the fan blades 15 and the threaded stirring blades 16, so that the reciprocating screw assembly 13 assists the adjusting cylinder 14 to reciprocate, so that when the medicine inlet pipe 28 is used to supply medicine to the inside of the mixing tube 2, the reciprocating screw assembly 13 rotates and moves, while assisting the medicine and sewage to be stirred and mixed, and the brush plate 17 is used to brush and clean the impurities on the inner wall of the mixing tube 2 as the reciprocating screw assembly 13 rotates. When the reciprocating screw assembly 13 drives the stirring rod 30 to rotate, the stirring rod 30 drives the auxiliary rod 33 The auxiliary rod 33 is used to drive the L-shaped upper plate 31 to move back and forth inside the sewage treatment tank 1, and when the filter plate 1 34 and the filter plate 2 37 are connected, the auxiliary pre-treated sewage is filtered through the filter plate 1 34 and the filter plate 2 and discharged to the bottom of the inner wall of the sewage treatment tank 1, and discharged to the outside through the drain pipe 39. When the L-shaped upper plate 31 moves, the groove 35 and the protrusion 38 are pushed to connect and separate, thereby driving the L-shaped upper plate 31 to vibrate on the top of the L-shaped lower plate 36, thereby assisting the filter plate 1 34 and the filter plate 2 37 to vibrate, and assisting the inner wall of the filter plate 1 34 and the filter plate 2 37 to clean impurities.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage pretreatment device for a sewage treatment plant, comprising a sewage treatment tank (1), characterized in that: A mixing tube (2) is fixedly mounted on the side of the sewage treatment tank (1); a sewage discharge frame (3) is fixedly mounted on the side of the mixing tube (2) away from the sewage treatment tank (1); a sewage inlet pipe (4) is fixedly mounted on the side of the sewage discharge frame (3) away from the mixing tube (2); an auxiliary pipe (5) is fixedly mounted on the outer edge of the sewage inlet pipe (4) near the bottom; a slide groove (7) is provided on the outer edge of the auxiliary pipe (5); a sliding block (9) is slidably connected to the inner wall of the sliding groove (7); a sliding cylinder (8) is fixedly mounted on the outer edge of the sliding block (9); and the sliding cylinder (8) is fixedly mounted on the outer edge of the sliding block (8). The inner wall of the slide tube (8) is slidably sleeved with the outer edge of the auxiliary tube (5), the outer edge of the slide tube (8) is rotatably connected to a connecting rod (10), the end of the connecting rod (10) away from the slide tube (8) is rotatably connected to a push frame (11), and the side of the push frame (11) is slidably connected to the inner wall of the sewage discharge frame (3), the inner wall of the mixing tube (2) close to the sewage discharge frame (3) is fixedly sleeved with a filter plate (12), the side of the filter plate (12) is provided with a reciprocating screw rod assembly (13), and the outer edge of the reciprocating screw rod assembly (13) is provided with an adjustment cylinder (14).

2. The sewage pretreatment equipment for a sewage treatment plant according to claim 1, characterized in that: A bidirectional rubber sealing plug (21) is fixedly sleeved on the inner wall of the auxiliary pipe (5) close to one end of the sewage inlet pipe (4); a circular plate (6) is slidably sleeved on the inner wall of the auxiliary pipe (5); the outer edge of the circular plate (6) is fixedly sleeved on the inner wall of the sliding block (9); and a convex rod (20) is fixedly mounted on the side of the circular plate (6); The reciprocating screw assembly (13) comprises a reciprocating screw body (1301) and a limit block (1302), and the side surface of the reciprocating screw body (1301) and the side surface of the filter plate (12) are fixedly assembled, the inner wall of the reciprocating screw body (1301) is threadedly connected to the bottom of the limit block (1302), and one end of the limit block (1302) away from the reciprocating screw body (1301) is fixedly sleeved to the inner wall of the adjustment cylinder (14).

3. The sewage pretreatment equipment for a sewage treatment plant according to claim 1, characterized in that: An electric push rod (18) is fixedly mounted on the inner wall of the auxiliary tube (5) near the bottom, a push plate (19) is fixedly sleeved on the output end of the electric push rod (18), and the outer edge of the push plate (19) is slidably sleeved on the inner wall of the auxiliary tube (5).

4. The sewage pretreatment equipment for a sewage treatment plant according to claim 3, characterized in that: A double-contact switch 1 (25) is fixedly mounted on the inner wall of the sewage discharge frame (3) near the top, a double-contact switch 2 (26) is fixedly mounted on the inner wall of the push frame (11), and the double-contact switch 2 (26) is electrically connected to the electric push rod (18), a cylinder (22) is fixedly mounted on the outer edge of the mixing tube (2), and the cylinder (22) is electrically connected to the double-contact switch 1 (25), and an output end of the cylinder (22) is fixedly sleeved with a discharge plate (23) The side of the sewage discharge frame (3) is fixedly equipped with a cylinder (24), and the inner wall of the cylinder (24) and the inner wall of the sewage discharge frame (3) are slidably sleeved with the outer edge of the discharge plate (23). The shape and size of the outer edge of the discharge plate (23) near the bottom are compatible with the shape and size of the inner wall of the top of the push frame (11). The inner wall of the sewage discharge frame (3) is fixedly equipped with a single-flap sealing gasket (27), and the inner wall of the single-flap sealing gasket (27) is slidably connected to the side of the push frame (11).

5. The sewage pretreatment equipment for a sewage treatment plant according to claim 1, characterized in that: The outer edge of the regulating cylinder (14) is fixedly sleeved with a fan blade (15), and the outer edge of the fan blade (15) is rotatably sleeved with the inner wall of the mixing tube (2), and the inner wall of the mixing tube (2) is fixedly sleeved with a medicine inlet pipe (28), and the side of the regulating cylinder (14) is fixedly equipped with a threaded stirring blade (16), and the outer edge of the threaded stirring blade (16) is fixedly sleeved with a brush plate (17).

6. The sewage pretreatment equipment for a sewage treatment plant according to claim 5, characterized in that: An auxiliary frame (29) is fixedly sleeved on one end of the mixing tube (2) away from the sewage discharge frame (3), and the inner wall of the auxiliary frame (29) is movably sleeved on the outer edge of the threaded stirring blade (16). A stirring rod (30) is fixedly mounted on one end of the threaded stirring blade (16) away from the sewage discharge frame (3), and an auxiliary rod (33) is fixedly mounted on the side of the stirring rod (30).

7. The sewage pretreatment equipment for a sewage treatment plant according to claim 6, characterized in that: The side of the inner wall of the sewage treatment box (1) is movably connected to an L-shaped upper plate (31), the side of the inner wall of the L-shaped upper plate (31) is provided with a limiting groove (32), and the inner wall of the limiting groove (32) is movably sleeved with the outer edge of the auxiliary rod (33), and the inner wall of the sewage treatment box (1) is fixedly equipped with an L-shaped lower plate (36), and when the outer edge of the auxiliary rod (33) is at the top of the inner wall of the limiting groove (32), the bottom of the inner wall of the L-shaped lower plate (36) overlaps with the bottom of the L-shaped upper plate (31).

8. The sewage pretreatment equipment for a sewage treatment plant according to claim 7, characterized in that: The inner wall of the L-shaped upper plate (31) is fixedly sleeved with a plurality of filter plates 1 (34), and the inner wall of the L-shaped lower plate (36) is fixedly sleeved with a plurality of filter plates 2 (37), and the outer edges of the filter plates 2 (37) and the filter plates 1 (34) are completely identical in shape, size and number.

9. The sewage pretreatment equipment for a sewage treatment plant according to claim 8, characterized in that: The bottom of the L-shaped upper plate (31) is provided with a groove (35), and the bottom of the inner wall of the L-shaped lower plate (36) is fixedly provided with a protrusion (38), and the shape and size of the outer edge of the protrusion (38) are adapted to the shape and size of the inner wall of the groove (35).

10. The sewage pretreatment equipment for a sewage treatment plant according to claim 9, characterized in that: The filter sheet (34) is provided with two grooves (35) adjacent to each other along the X-axis, and the number of the grooves (35) is consistent with the number of the protrusions (38). A drainage pipe (39) is fixedly sleeved on the inner wall of the sewage treatment tank (1) near the bottom.

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