A purifying device for industrial sewage

Abstract

This invention provides a purification device for industrial wastewater, relating to the field of wastewater purification technology. It includes a support frame with a support box on it. The support box has a flow guide channel and a slag storage tank. A filter box is rotatably connected to the support box via a support rod. A torsion spring is provided between the filter box and the support rod. A composite filter is installed inside the filter box, with filter holes. A baffle is provided on the support box, and a locking block is provided on the filter box. A locking pin is provided on the support box, and a spring is provided between the locking pin and the support box. An adaptive adjustment structure is provided on the side wall of the support box. This adaptive adjustment structure enables adaptive automatic slag unloading based on load changes, eliminating the need for external sensors or electrical control systems. The structure is reliable and the operation is stable, effectively solving the problem of unstable processing caused by the lack of dynamic response in spring-supported impurity removal equipment in the prior art, thus improving the automation level and operating efficiency of industrial wastewater treatment.

Description

Technical Field

[0001] This invention relates to the field of wastewater purification technology, and more specifically to a purification device for industrial wastewater. Background Technology

[0002] Industrial wastewater refers to wastewater that becomes contaminated during various industrial production processes, including process use, equipment cooling, raw material cleaning, and site washing. Its water quality characteristics are complex, typically containing multiple pollutants, primarily heavy metal ions such as mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr), arsenic (As), and zinc (Zn), acidic and alkaline substances, organic pollutants, suspended particulate matter such as silt, dust, and slag, as well as toxic and harmful components such as oils and dyes. These pollutants alter the original physical, chemical, and biological properties of the water body, and if discharged directly without effective treatment, will cause serious harm to the ecological environment and human health.

[0003] Given the increasing scarcity of water resources, effectively purifying and reusing industrial wastewater for non-potable purposes such as production processes, equipment cooling, factory landscaping, or ground cleaning, thus forming a "reclaimed water reuse" system, has become an important technological path to achieve water resource recycling, reduce fresh water consumption, and promote green manufacturing and sustainable development.

[0004] In the prior art, for example, Chinese Invention Patent Publication No. CN115400475B discloses an energy-saving and environmentally friendly purification and impurity removal device for industrial wastewater treatment. This device includes a main impurity removal body and a fixed adjustment device disposed below it. The main impurity removal body consists of a guide frame, a fixed mounting frame, a guide conveying plate, a baffle limiting plate, and a filter device. The guide frame is fixed to the bottom of one end of the fixed mounting frame for introducing wastewater; the guide conveying plate is located at the bottom of the other end for conveying filtered material; the baffle limiting plate is installed on the upper inner side of the fixed mounting frame, located at one end of the guide conveying plate, serving to limit and guide the flow; the filter device is arranged in the middle of the fixed mounting frame, performing the core solid-liquid separation function. The fixed adjustment device adopts a spring structure to adjust the installation height and working posture of the main impurity removal body to adapt to the control of wastewater flow rate and direction under different working conditions, achieving orderly passage of wastewater and removal of impurities. However, this solution has obvious technical defects: the stability of its impurity removal process relies entirely on the elastic support of the spring, lacking rigid positioning and dynamic adjustment mechanisms, making it difficult to adapt to complex and variable wastewater flow fluctuations.

[0005] Based on the above problems, there is an urgent need to provide a purification device for industrial wastewater, an adaptive adjustment structure that is stable, precise in adjustment, and reliable in operation, in order to overcome the problems existing in the prior art. Summary of the Invention

[0006] In response to the problems raised in the background art, the present invention provides a purification device for industrial wastewater to solve these problems, and the present invention will be further described below.

[0007] A purification device for industrial wastewater includes a support frame with a carrier box on the support frame. The carrier box has a flow guide channel and a slag storage tank. A filter box is rotatably connected to the carrier box via a support rod. A torsion spring is provided between the filter box and the support rod. A composite filter is provided inside the filter box. The filter box has filter holes. A baffle is provided on the carrier box. A locking block is provided on the filter box. A locking pin is provided on the carrier box. A spring is provided between the locking pin and the carrier box. An adaptive adjustment structure is provided on the side wall of the carrier box.

[0008] Preferably, the adaptive adjustment structure includes a second gear mounted on the carrier box, a top block on the second gear, and a locking pin engaging with the top block. A short rod is mounted on the carrier box, and a first gear is mounted on the short rod, meshing with the second gear. The first and second gears have different numbers of teeth, creating a difference in transmission ratio. A rotating shaft is mounted on the flow guide channel, and an impeller assembly is mounted on the rotating shaft. The rotating shaft and the short rod are connected by a belt drive. Through the coordinated operation of the first gear, the second gear, the impeller assembly, the top block, and the locking pin, the filter box achieves both rigid positioning and dynamic adjustment.

[0009] Preferably, the rotating shaft is equipped with a rotating wheel, which has a double-layer cylindrical structure. Multiple screws are mounted on the rotating wheel, each screw has blades, and a locking frame is mounted on each screw. The locking frame is slidably connected to the outer cylinder wall of the rotating wheel. A counterweight is mounted on the locking frame. Several guide posts are located between the inner and outer cylinders of the rotating wheel, and these guide posts slide against the counterweight. A spring is located between the counterweight and the inner wall of the outer cylinder of the rotating wheel. Through the centrifugal force of the counterweight, combined with spring balance and a screw drive linkage mechanism, adaptive adjustment of the blade's angle of attack against the airflow is achieved.

[0010] Preferably, the filter box is provided with a guide rod, the guide rod is provided with a sealing frame, the sealing frame is provided with a sealing plate, and a spring is provided between the sealing frame and the filter box. The sealing plate on the sealing frame can achieve dynamic sealing of the filter holes on the filter box.

[0011] Preferably, the filter box is equipped with a receiving frame, an air bladder is installed on the receiving frame, an air guide telescopic tube is installed on the air bladder, a push plate is installed on the air guide telescopic tube, the push plate is slidably connected to the filter box, a spring is installed between the air guide telescopic tube and the filter box, an air release valve is installed on the air guide telescopic tube, a mounting frame is installed on the bracket, a squeezing plate is installed on the mounting frame, an air cylinder is installed on the receiving frame, the air cylinder is connected to the air bladder through a pipe, an air inlet is installed on the air cylinder, a piston is installed on the air cylinder, a return spring is installed between the piston and the air cylinder, a connecting frame is fixedly connected to the bottom of the piston, and the connecting frame is fixedly connected to the mounting frame, realizing the automatic slag pushing action of the push plate.

[0012] Beneficial effects: Compared with the existing technology, this device achieves an adaptive automatic slag unloading function based on load changes through a mechanical self-control mechanism that drives the impeller assembly, belt rotation, differential speed of gear one and gear two, and linkage with the top block by the filtered water flow. It does not require external sensors or electrical control systems, has a reliable structure, and operates stably. It effectively solves the problem of unstable processing caused by the lack of dynamic response in the spring-supported impurity removal equipment in the background technology, and improves the automation level and operating efficiency of industrial wastewater treatment.

[0013] Through the centrifugal effect of the counterweight of the impeller assembly, combined with spring balance and screw drive linkage mechanism, the blade's angle of attack against the flow is adaptively adjusted, enabling it to automatically optimize its force posture according to the water flow velocity. This ensures both start-up sensitivity at low flow rates and improves energy conversion efficiency at high flow rates, thereby enhancing the overall stability and responsiveness of the wastewater purification device under varying operating conditions.

[0014] By combining the squeezing of the extrusion plate and the airbag, the pneumatic slag pushing action of the pusher plate is achieved. Combined with the dynamic sealing mechanism of the sealing frame, the complete removal of filter slag and self-cleaning of the pores are realized, effectively solving the problems of incomplete slag removal, easy clogging, and frequent maintenance of traditional filtration equipment. Attached Figure Description

[0015] Figure 1 : A three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 : A partial structural schematic diagram of the present invention;

[0017] Figure 3 : A schematic diagram of the structure of the relevant components of the impeller assembly of the present invention;

[0018] Figure 4 : A schematic diagram of the structure of the gear 2, the locking pin, the spring 1 and other related components of this invention;

[0019] Figure 5 This invention includes a schematic diagram of the structure of the air cylinder, mounting frame, receiving frame, and other related components.

[0020] Figure 6 : A schematic diagram of the structure of the piston, return spring, spring and other related components of this invention;

[0021] Figure 7 : A schematic diagram of the structure of the vent valve, the air guide telescopic tube, the extrusion plate and other related components of this invention;

[0022] Figure 8 : A schematic diagram of the structure of the sealing frame, guide rod, spring and other related components of this invention;

[0023] In the diagram: 1-Bracket, 11-Carrier box, 12-Filter box, 13-Torsion spring, 14-Guide channel, 141-Mounting groove, 15-Baffle, 16-Slag storage groove, 2-Rotating wheel, 21-Rotating shaft, 22-Belt, 23-Gear 1, 231-Short rod, 24-Gear 2, 25-Top block, 26-Locking pin, 261-Spring 1, 27-Locking block, 3-Blade, 31-Screw, 32-Locking frame, 33-Counterweight, 34-Spring 2, 4-Airbag, 41-Air cylinder, 411-Guide rod, 412-Mounting frame, 413-Receiving frame, 414-Push plate, 42-Connecting frame, 43-Extrusion plate, 44-Air guide telescopic pipe, 45-Piston, 46-Reset spring, 47-Spring 3, 48-Relief valve, 49-Sealing frame, 410-Spring 4. Detailed Implementation

[0024] Next, combine Figures 1-8 A specific embodiment of the present invention will be described in detail below.

[0025] refer to Figure 1 and Figure 2 A purification device for industrial wastewater includes a support 1, on which a carrier box 11 is connected by fasteners. The front side of the carrier box 11 is provided with a guide channel 14 for guiding the purified water to be discharged. The rear side of the carrier box 11 is provided with a slag storage tank 16, which is a frame structure with a sloping side for collecting solid waste and concentrated waste residue generated during the filtration process.

[0026] refer to Figure 2 A filter box 12 is rotatably connected to the middle of the support box 11 via a support rod. The filter box 12 has an open top structure for easy addition of wastewater to be treated. A torsion spring 13 is provided between the filter box 12 and the support rod, which is wound around the support rod to provide the filter box 12 with the driving force for resetting and flipping. The inner cavity of the filter box 12 is equipped with a composite filter for intercepting and separating suspended solids, particulate impurities, and some heavy metal ions in the wastewater. Filter holes are provided on the bottom and front side wall of the filter box 12 to ensure that the purified liquid passes smoothly through the filter material under the action of gravity and flows out from the filter holes, entering the guide channel 14 for clear liquid discharge (the filter holes on the bottom and front side wall of the filter box 12 all guide the flow through the guide channel 14).

[0027] refer to Figure 4 A baffle 15 is fixedly connected to the carrier box 11. The baffle 15 is located on the rear side of the filter box 12 and serves as a lateral limiting structure. Under normal working conditions, it closes the rear of the filter box 12, maintaining its complete open top box shape and preventing sewage leakage.

[0028] refer to Figure 4A locking block 27 is fixedly connected to the side wall of the filter box 12, and a locking pin 26 matching the locking block 27 is slidably connected through the corresponding position of the carrier box 11. A spring 261 is provided between the locking pin 26 and the carrier box 11 to provide a reset elastic force for the locking pin 26.

[0029] In the initial state, the torsion spring 13 is in a pre-tightened energy storage state, while the spring 261 is compressed and deformed. Under the action of the spring force, the locking pin 26 forms a rigid engagement with the locking block 27, thereby achieving mechanical locking of the filter box 12, keeping the filter box 12 in a horizontal and stable position, and ensuring normal filtration operation.

[0030] refer to Figure 4 The side wall of the support box 11 is provided with an adaptive adjustment structure, which is used to automatically trigger the slag discharge action according to the cumulative weight of the sediment in the filter box 12. This structure includes a gear 24 rotatably connected to the outer side wall of the support box 11. A top block 25 is fixedly connected to the outer side wall of the gear 24. The top block 25 and the end of the locking pin 26 form a pressing fit. When the gear 24 rotates, the top block 25 rotates accordingly and pushes the locking pin 26 outward against the elastic force of the spring 261, so that it is disengaged from the locking state with the locking block 27, thereby releasing the lock on the filter box 12.

[0031] refer to Figure 2 and Figure 4 To achieve dynamic matching between the triggering action of the top block 25 and the filter load of the filter box 12, a short rod 231 is also provided on the outside of the support box 11. A gear 23 is keyed to the short rod 231, and gear 23 meshes with gear 24. Gear 23 and gear 24 have different numbers of teeth, resulting in a difference in transmission ratio.

[0032] refer to Figure 2 A rotating shaft 21 is rotatably connected to the top of the flow channel 14 via a support. An installation groove 141 is provided on the flow channel 14. An impeller assembly is mounted on the rotating shaft 21, part of which is located within the installation groove 141 and part extends into the flow channel 14 to effectively receive the impact force of water flow from the filter holes of the filter box 12. The rotating shaft 21 and the short rod 231 are connected by a belt 22 for power transmission.

[0033] During initial operation, the filter box 12 is in a locked horizontal position. Wastewater to be treated is injected through the top opening of the filter box 12. After impurities are intercepted by the internal filter, the purified water flows out through the filter holes at the bottom and front side wall. The water flow impacts the impeller assembly, driving the impeller assembly to rotate, which in turn drives the rotating shaft 21 to rotate. The belt 22 drives the short rod 231 to rotate synchronously, which in turn drives the gear 23 to rotate.

[0034] Due to the difference in transmission ratio between gear 1 23 and gear 2 24, gear 2 24 rotates at a lower speed relative to gear 1 23. As filtration continues, impurities accumulate in the filter box 12, and the weight gradually increases. When the total load reaches a preset threshold, gear 2 24 rotates to a specific phase, and its top block 25 contacts the locking pin 26 and applies a pushing force, forcing the locking pin 26 to disengage from the locking block 27 and releasing the mechanical lock. At this time, under the combined action of the torsion spring 13 and the weight of the object in the filter box 12, the filter box 12 flips around the support rod towards the sludge storage tank 16. The baffle 15 no longer blocks its rear side, and the filter sludge accumulated in the filter box 12 is poured into the sludge storage tank 16 under the action of gravity, completing the automatic sludge discharge. The purified water is collected separately through the guide channel 14.

[0035] This device achieves an adaptive automatic slag unloading function based on load changes through a mechanical self-control mechanism that drives the impeller assembly, belt 22 transmission, gear 1 23, gear 2 24 differential speed linkage with top block 25 via filtered water flow. It requires no external sensors or electrical control system, has a reliable structure and stable operation, and effectively solves the problem of unstable processing caused by lack of dynamic response in spring-supported impurity removal equipment in the background technology, thereby improving the automation level and operating efficiency of industrial wastewater treatment.

[0036] refer to Figure 3 The impeller assembly includes a rotating wheel 2 connected to a key on a rotating shaft 21. The rotating wheel 2 has a double-layer cylindrical structure. The inner cylinder is circumferentially fixed to the rotating shaft 21 by a key to ensure reliable torque transmission; the outer cylinder forms the external support body. Multiple circumferentially evenly distributed screws 31 are rotated on the outer cylinder wall of the rotating wheel 2, and blades 3 are connected to the top of each screw 31 by fasteners.

[0037] In the initial state, the blades 3 are arranged at a preset tilt angle to optimize the impact force on the water flow. A locking bracket 32 ​​is threaded onto the screw 31, and the locking bracket 32 ​​slides through the outer cylinder wall of the rotating wheel 2. The locking bracket 32 ​​extends downward to the end of the mounting cavity inside the rotating wheel 2, where a counterweight 33 is fixedly connected. Several guide posts are provided between the inner and outer cylinders of the rotating wheel 2. The guide posts correspond one-to-one with the counterweight 33 and form a sliding fit to constrain the movement trajectory of the counterweight 33 and ensure its directional movement. A spring 34 is provided between the counterweight 33 and the inner wall of the outer cylinder of the rotating wheel 2 to provide a restoring elastic force for the counterweight 33.

[0038] When purified water flows out of the filter holes at the bottom and front side wall of the filter box 12, it enters the guide channel 14. The water flow impacts the surface of the blade 3, generating a torque that drives the blade 3, screw 31, and rotating wheel 2 to rotate around the shaft 21, thereby driving the shaft 21 to rotate and output power. As the rotation speed increases, the counterweight 33 moves outward along the guide column under the action of centrifugal force, compressing the second spring 34. As the counterweight 33 moves outward, it drives the positioning frame 32 to move upward along the screw 31. Since the positioning frame 32 and the screw 31 are threadedly connected, its axial movement drives the screw 31 to rotate, thereby driving the blade 3 to rotate and adjusting its angle of attack in real time.

[0039] Under low flow conditions, the water flow velocity is low, the impact force on the blade 3 is small, the rotation speed of the rotating wheel 2 and the rotating shaft 21 is low, the centrifugal force on the counterweight 33 is small, and under the dominant action of the second spring 34, the radial displacement of the counterweight 33 is small, the axial movement stroke of the clamping frame 32 is short, the rotation angle of the screw 31 is small, and the deflection amplitude of the blade 3 is small, maintaining a small frontal area, reducing operating resistance, and ensuring that the first gear 23 outputs power smoothly at a low speed.

[0040] Under high flow conditions, the water velocity increases, the impact force on blade 3 intensifies, the rotational speed of rotating wheel 2 and shaft 21 increases significantly, the centrifugal force on counterweight 33 increases, overcoming the elastic force of spring 2 34 and moving outward, resulting in an increase in the axial displacement of the mounting bracket 32. This causes the drive screw 31 to rotate at a larger angle, deflecting blade 3 to a greater upstream position, further improving energy capture efficiency. Simultaneously, it drives gear 1 23 to rotate at high speed, realizing the adaptive speed increase response of the transmission system.

[0041] When the water flow velocity tends to stabilize, the centrifugal force on the counterweight 33 and the restoring force of the second spring 34 reach dynamic equilibrium, the positioning frame 32 stops axial movement, and the angles of the screw 31 and the blade 3 are also fixed. The system enters steady-state operation mode to ensure smooth and reliable transmission output.

[0042] The impeller assembly, through the centrifugal action of the counterweight 33 and the transmission linkage mechanism of the spring 34 and the screw 31, achieves adaptive adjustment of the angle of the blade 3 facing the flow, enabling the blade 3 to automatically optimize its force posture according to the water flow velocity. This ensures both the start-up sensitivity at low flow rates and the energy conversion efficiency at high flow rates, thereby enhancing the operational stability and responsiveness of the entire wastewater purification device under varying operating conditions.

[0043] refer to Figure 8To ensure that the filter residue accumulated inside the filter box 12 can be completely discharged during the slag discharge process and to avoid residual blockage or accumulation, the device has a guide rod 411 fixedly connected to the bottom outer wall of the filter box 12. A sealing frame 49 is slidably connected to the guide rod 411. The sealing frame 49 is equipped with a sealing plate that corresponds one-to-one with the filter holes at the bottom of the filter box 12. It is used to dynamically seal the bottom filter holes during the slag discharge stage. A spring 410 is provided between the sealing frame 49 and the bottom of the filter box 12 to provide the sealing frame 49 with a reset elastic force.

[0044] When the filter box 12 triggers a flipping action due to the load reaching the threshold, it tilts around the support rod towards the slag storage tank 16. During this process, the sealing frame 49 tilts down synchronously with the filter box 12. Since the slag storage tank 16 is a frame structure with an inclined guide surface on one side, the sealing frame 49 contacts the top of the inclined surface during the tilting process and is subjected to a reverse support force, pushing the sealing frame 49 to slide along the guide rod 411 towards the bottom of the filter box 12, compressing the spring 410, so that the sealing plate completely covers the bottom filter hole, realizing the sealing of the channel.

[0045] This design prevents filter residue from leaking into the flow channel 14 from the bottom filter holes, and creates a continuous and flat sliding surface at the bottom of the filter box 12, which significantly improves the smoothness of filter residue sliding and ensures that the filter residue is poured into the slag storage tank 16 completely and quickly under the action of gravity. At the same time, it has a reverse unblocking effect on the filter holes, preventing the channels from becoming blocked due to long-term use.

[0046] refer to Figure 5 , Figure 6 and Figure 7 To further enhance the slag discharge effect, a support frame 413 is fixedly connected to the front outer wall of the filter box 12. An air bag 4 is installed on the support frame 413. An air guide telescopic pipe 44 is connected to the air bag 4. The air guide telescopic pipe 44 passes through the side wall of the filter box 12 and extends to the end of its inner cavity, where a push plate 414 is connected. The push plate 414 is slidably connected to the inner cavity of the filter box 12.

[0047] A spring 47 is provided between the gas guide tube 44 and the filter box 12 to provide the return force for the push plate 414. A vent valve 48 is provided on the gas guide tube 44 to control the timing of gas release.

[0048] refer to Figure 7To achieve automatic inflation and actuation of the airbag 4, a mounting bracket 412 is fixedly connected to the front side of the bracket 1. A compression plate 43 is connected to the bottom of the mounting bracket 412 by fasteners. The compression plate 43 corresponds to the position of the airbag 4 and can apply compression to it during a specific stroke. An air cylinder 41 is slidably connected to the side wall of the receiving bracket 413. The air cylinder 41 is connected to the airbag 4 through a pipe and is used to replenish the airbag 4 with gas. An air inlet is provided on the air cylinder 41. A piston 45 is slidably connected inside the air cylinder 41. A return spring 46 is provided between the piston 45 and the air cylinder 41 to drive the air cylinder 41 to return to its original position. A connecting bracket 42 is fixedly connected to the bottom of the piston 45. The top of the connecting bracket 42 is fixedly connected to the mounting bracket 412 so that the piston 45 remains in a fixed position during the operation of the device.

[0049] When the filter box 12 begins to tilt, the receiving frame 413 moves upward, causing the air bag 4 to move upward and come into contact with the extrusion plate 43. As the tilting angle increases, the air bag 4 is continuously compressed, and the internal gas is transported to the push plate 414 through the gas guide telescopic pipe 44. This pushes the push plate 414 to overcome the elastic force of the spring 3 47 and move into the inner cavity of the filter box 12. The filter residue attached to or retained on the inner wall of the filter box 12 is forcibly pushed towards the residue storage tank 16 to achieve auxiliary residue cleaning. The gas guide telescopic pipe 44 extends synchronously, and the spring 3 47 continues to compress and store energy.

[0050] When the airbag 4 is compressed to its limit position, the vent valve 48 on the air guide telescopic tube 44 contacts the compression plate 43 and is opened under pressure, and the gas inside the air guide telescopic tube 44 is quickly discharged. Subsequently, under the restoring force of the spring 3 47, the push plate 414 drives the air guide telescopic tube 44 to retract and reset, returning to the initial standby state.

[0051] During the airbag 4 being compressed and depressurized, some airflow enters the air cylinder 41 through the pipe, pushing the air cylinder 41 to slide upward against the elastic force of the return spring 46. At the same time, external air is drawn into the air cylinder 41 through the air inlet. When the push plate 414 is reset, the return spring 46 releases its elastic force, driving the air cylinder 41 to move downward, pressing the gas stored inside back into the airbag 4, completing the air supply replenishment and preparing for the next slag discharge action.

[0052] By squeezing and cooperating with the extrusion plate 43 and the air bag 4, the pneumatic slag pushing action of the push plate 414 is realized. Combined with the dynamic sealing mechanism of the sealing frame 49, the complete removal of filter residue and self-cleaning of the pores are achieved, effectively solving the problems of incomplete slag removal, easy clogging, and frequent maintenance of traditional filtration equipment.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A purification device for industrial sewage, comprising a support (1), wherein a bearing box (11) is arranged on the support (1), a flow guide channel (14) and a residue storage groove (16) are arranged on the bearing box (11), the bearing box (11) is rotationally connected with a filter box (12) through a support rod, a torsional spring (13) is arranged between the filter box (12) and the support rod, a composite filter is arranged in an inner cavity of the filter box (12), a filter hole is arranged on the filter box (12), and a baffle (15) is arranged on the bearing box (11), characterized in that: The filter box (12) is provided with a locking block (27), the carrier box (11) is provided with a locking pin (26), a spring (261) is provided between the locking pin (26) and the carrier box (11), and the side wall of the carrier box (11) is provided with an adaptive adjustment structure. ​ 2. The purification device for industrial wastewater according to claim 1, characterized in that: The adaptive adjustment structure includes a second gear (24) mounted on a carrier box (11), a top block (25) mounted on the second gear (24), the top block (25) being pressed into place with a locking pin (26), a short rod (231) mounted on the carrier box (11), a first gear (23) mounted on the short rod (231), and the first gear (23) meshing with the second gear (24). The first gear (23) and the second gear (24) have different numbers of teeth, resulting in a difference in transmission ratio. A rotating shaft (21) is mounted on a flow channel (14), a mounting groove (141) is mounted on the flow channel (14), and an impeller assembly is mounted on the rotating shaft (21). The rotating shaft (21) and the short rod (231) are connected by a belt (22).

3. The purification device for industrial wastewater according to claim 2, characterized in that: The rotating shaft (21) is provided with a rotating wheel (2), which is a double-layer cylindrical structure. The rotating wheel (2) is provided with multiple screws (31), each screw (31) is provided with a blade (3), and a positioning frame (32) is provided on the screw (31). The positioning frame (32) is slidably connected to the outer cylinder wall of the rotating wheel (2). The positioning frame (32) is provided with a counterweight (33). Several guide columns are provided between the inner cylinder and the outer cylinder of the rotating wheel (2). The guide columns are slidably engaged with the counterweight (33). A spring (34) is provided between the counterweight (33) and the inner wall of the outer cylinder of the rotating wheel (2).

4. The purification device for industrial wastewater according to claim 1, characterized in that: The filter box (12) is provided with a guide rod (411), and a sealing frame (49) is provided on the guide rod (411). A sealing plate is provided on the sealing frame (49), and a spring (410) is provided between the sealing frame (49) and the filter box (12).

5. The purification device for industrial wastewater according to claim 4, characterized in that: The filter box (12) is provided with a support frame (413), and an airbag (4) is installed on the support frame (413). The airbag (4) is provided with an air guide telescopic tube (44), the air guide telescopic tube (44) is provided with a push plate (414), the push plate (414) is slidably connected to the filter box (12), the air guide telescopic tube (44) and the filter box (12) are provided with a spring three (47), the air guide telescopic tube (44) is provided with a vent valve (48), the bracket (1) is provided with a mounting bracket (412), the mounting bracket (412) is provided with a squeezing plate (43), the receiving frame (413) is provided with an air cylinder (41), the air cylinder (41) is connected to the airbag (4) through a pipe, the air cylinder (41) is provided with an air inlet, the air cylinder (41) is provided with a piston (45), the piston (45) and the air cylinder (41) are provided with a return spring (46), the bottom of the piston (45) is fixedly connected with a connecting frame (42), and the connecting frame (42) is fixedly connected to the mounting frame (412).

Images