A solid-liquid separation device for wastewater treatment

Abstract

This utility model discloses a solid-liquid separation device for wastewater treatment, relating to the field of wastewater treatment technology. It includes a support platform, a processing box mounted above the support platform, and two horizontally arranged crushing rollers inside the processing box. An end-face gear is connected to a transmission mechanism that drives a filter screen to vibrate. A rolling structure to assist filter screen vibration is provided between one side of the filter screen's top and the support platform. This utility model precisely transmits power to the crushing rollers through gear one, gear two, and a toothed belt in the transmission assembly, enabling the two crushing rollers to perform synchronous and efficient crushing operations via the meshing of spur gears. Simultaneously, gear two is connected to the end-face gear shaft, further transmitting power to the transmission mechanism to drive the filter screen to reciprocate. This design achieves synchronous driving of the two key functions of crushing and filter screen vibration from a single power source, greatly simplifying the power system structure, reducing the number of power devices, and lowering energy consumption and equipment costs.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a solid-liquid separation device for wastewater treatment. Background Technology

[0002] With the acceleration of industrialization and urbanization, the amount of wastewater discharged has increased significantly, containing a large amount of suspended solids (such as particulate matter, silt, and biological slime). If these solids are discharged directly without treatment, it will lead to water pollution, pipe blockage, and increased subsequent treatment costs. Therefore, solid-liquid separation has become a key link in wastewater treatment.

[0003] Most existing solid-liquid separation devices use static filters. During the filtration process, solid matter tends to accumulate on the surface of the filter screen, forming a filter cake layer. As the filter cake layer continues to thicken, the filtration resistance of the filter screen gradually increases, resulting in a significant decrease in filtration speed.

[0004] For example, CN221491605U discloses a solid-liquid separation device for anti-clogging industrial wastewater treatment. This device includes an anti-clogging structure. Industrial wastewater enters through an inlet above a coarse filter screen for the first filtration, trapping suspended impurities above the screen. The wastewater then enters a metal filter screen for a second filtration, and finally, an activated carbon layer for a final filtration. However, the coarse filter screen, metal filter screen, and activated carbon layer are all designed in parallel. Since each filter screen is stationary, large particles can quickly accumulate on the surface of the coarse filter screen, forming a thick filter cake layer. This causes severe clogging of the coarse filter screen in a short time, significantly reducing the filtration speed. Therefore, frequent manual disassembly and cleaning are required, affecting the overall processing efficiency of the equipment.

[0005] Therefore, it is necessary to invent a solid-liquid separation device for wastewater treatment to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a solid-liquid separation device for wastewater treatment, which solves the problem that when the filter screen is in a static state, the filtration speed decreases significantly, affecting the efficiency of solid-liquid separation treatment of wastewater.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a solid-liquid separation device for wastewater treatment, comprising a support platform, a processing box arranged above the support platform, two crushing rollers arranged horizontally inside the processing box, a motor housing arranged on one side of the outside of the processing box and mounted on the top surface of the support platform, a servo motor arranged inside the processing box, the output end of the servo motor being connected to one of the crushing rollers through a transmission assembly, an inclined filter screen arranged at the discharge end of the processing box, an end face gear arranged on one side of the filter screen and mounted on the side wall of the support platform through a rotating shaft, the end face gear being connected to a transmission mechanism for driving the filter screen to vibrate, and a rolling structure for assisting the vibration of the filter screen being arranged between one side of the top of the filter screen and the support platform.

[0008] Furthermore, the feed end of the processing box is hinged with a box cover, which can be closed when the equipment is working, effectively preventing wastewater and solid impurities from splashing out of the processing box.

[0009] Furthermore, the transmission assembly includes a first gear and a second gear, with a toothed belt tensioned between the first gear and the second gear. The first gear is connected to the output end of the servo motor, and the second gear is connected to the end face gear shaft. The servo motor serves as a power source, outputting power through the first gear, and can smoothly and efficiently transmit power to the second gear.

[0010] Furthermore, each of the two crushing rollers has a spur gear mounted on its shaft end and located on the outside of the processing box. The two spur gears mesh with each other, enabling the two crushing rollers to rotate synchronously in opposite directions.

[0011] Furthermore, the transmission mechanism includes a first transmission gear, which is connected to one side of the end face gear. A second transmission gear is meshed above the first transmission gear, and the second transmission gear is connected to one of the crushing rollers. The transmission mechanism connects the vibration system of the filter screen with the rotation system of the crushing rollers, enabling the two to work in coordination.

[0012] Furthermore, two pinions are meshed on the other side of the end gear, and a rotating rod is connected between the two pinions. A disc is connected to each end of the rotating rod, and a slot is formed on the disc. A pin is installed within the slot and can slide within the slot. The pin is hinged to a connecting rod on the side wall of the filter screen. The slot on the disc, the pin, and the connecting rod hinged to the side wall of the filter screen constitute a crank-connecting rod mechanism. When the disc rotates, the pin slides within the slot, causing the filter screen to reciprocate through the connecting rod. This vibration effectively prevents solid matter from accumulating on the filter screen surface to form a filter cake layer, reducing filtration resistance and increasing filtration speed.

[0013] Furthermore, the rolling structure includes a ball bearing disposed on one side of the top of the filter screen. A groove is formed at the contact position between the support platform and the ball bearing. The ball bearing can slide along the direction of the groove. The structure of the ball bearing and the groove provides stable support and guidance for the vibration of the filter screen, ensuring that the filter screen reciprocates within a specified range.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model uses gear one, gear two and toothed belt in the transmission assembly to accurately transmit power to the crushing roller, so that the two crushing rollers can carry out synchronous and efficient crushing operation by means of the meshing of spur gears. At the same time, gear two is connected to the end of the end gear shaft, which further transmits power to the transmission mechanism to drive the filter screen to generate reciprocating vibration. This design realizes the synchronous drive of the two key functions of crushing and filter screen vibration by a single power source, which greatly simplifies the power system structure, reduces the number of power equipment, and reduces energy consumption and equipment cost.

[0016] 2. This utility model achieves a good synergistic working mode through the rotation of the crushing roller and the vibration of the filter screen. The crushing roller breaks large solid materials in the wastewater into smaller particles, creating favorable conditions for subsequent solid-liquid separation. Meanwhile, the reciprocating vibration of the filter screen effectively prevents the small solid particles after crushing from accumulating and clogging the filter screen, ensuring that the liquid can pass through the filter screen smoothly and that the solid materials can be separated and discharged more effectively. The two work together to make the entire wastewater treatment process smoother and more efficient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the processing box of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the spur gear of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the transmission component of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the end face gear and pinion of this utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the ball and groove of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support platform; 2. Processing box; 3. Box cover; 4. Crushing roller; 5. Motor box; 6. Servo motor; 7. Transmission assembly; 701. Gear 1; 702. Gear 2; 703. Toothed belt; 8. Spur gear; 9. Filter screen; 10. End face gear; 11. Transmission gear 1; 12. Transmission gear 2; 13. Pinion; 14. Rotating rod; 15. Disc; 16. Slot; 17. Shaft pin; 18. Connecting rod; 19. Ball bearing; 20. Groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-6 The solid-liquid separation device for wastewater treatment shown includes a support platform 1, a processing box 2 above the support platform 1, a box cover 3 hinged to the feed end of the processing box 2, two crushing rollers 4 arranged horizontally inside the processing box 2, a motor box 5 located on the outside of the processing box 2 and mounted on the top surface of the support platform 1, a servo motor 6 inside the processing box 2, the output end of the servo motor 6 being connected to one of the crushing rollers 4 via a transmission assembly 7, the transmission assembly 7 including a first gear 701 and a second gear 702, a toothed belt 703 tensioned between the first gear 701 and the second gear 702, the first gear 701 being connected to the output end of the servo motor 6, the second gear 702 being connected to the shaft end of the end face gear 10, and a spur gear 8 being mounted on the shaft end of each of the two crushing rollers 4 and located on the outside of the processing box 2, and the two spur gears 8 meshing.

[0027] In this embodiment, after the servo motor 6 is started, the power is transmitted to one of the crushing rollers 4 through the transmission assembly 7 composed of gear 1 701, toothed belt 703 and gear 2 702. Since the spur gears 8 at the shaft ends of the two crushing rollers 4 mesh with each other, the two crushing rollers 4 can rotate synchronously and in opposite directions to crush large solid materials in the wastewater entering the treatment tank 2, reduce the size of the solid materials, and create favorable conditions for subsequent solid-liquid separation.

[0028] An inclined filter screen 9 is provided at the discharge end of the processing box 2. An end face gear 10 is provided on one side of the filter screen 9 and is mounted on the side wall of the support platform 1 through a rotating shaft. The end face gear 10 is connected to a transmission mechanism that drives the filter screen 9 to vibrate. A rolling structure that assists the vibration of the filter screen 9 is provided between one side of the top of the filter screen 9 and the support platform 1. The transmission mechanism includes a first transmission gear 11, which is connected to one side of the end face gear 10. A second transmission gear 12 is meshed above the first transmission gear 11. The second transmission gear 12 is connected to one of the crushing rollers 4.

[0029] In this embodiment, during the rotation of the crushing roller 4, the rotational power of the crushing roller 4 is transmitted to the end face gear 10 through the meshing of the second transmission gear 12 and the first transmission gear 11, providing a basic power source for the subsequent driving of the filter screen 9 to vibrate, and realizing the power correlation between the crushing operation and the vibration drive of the filter screen 9.

[0030] Two small gears 13 are meshed on the other side of the end gear 10. A rotating rod 14 is connected between the two small gears 13. The two ends of the rotating rod 14 are connected to a disc 15. A strip groove 16 is opened on the disc 15. A shaft pin 17 is set in the strip groove 16 and can slide in the strip groove 16. The shaft pin 17 is hinged to the side wall of the filter screen 9 by a connecting rod 18. The rolling structure includes a ball 19 set on one side of the top of the filter screen 9. A rolling groove 20 is opened at the contact position between the support platform 1 and the ball 19. The ball 19 can slide along the direction of the rolling groove 20.

[0031] In this embodiment, when the end face gear 10 rotates, it drives the two small gears 13 to rotate, which in turn causes the rotating rod 14 and the disc 15 to rotate. The design of the strip groove 16 and the shaft pin 17 on the disc 15 allows the shaft pin 17 to slide in the strip groove 16 while rotating with the disc 15. The rotational motion of the disc 15 is converted into the reciprocating linear motion of the filter screen 9 through the connecting rod 18, thereby realizing the vibration of the filter screen 9. This prevents solid matter from accumulating and clogging on the filter screen 9 and ensures that the liquid can pass through the filter screen 9 smoothly. When the filter screen 9 vibrates reciprocally under the action of the transmission mechanism, the ball bearing 19 slides in the roller groove 20. The side walls on both sides of the filter screen 9 discharge end are slidably connected to the side walls of the bottom support legs of the support platform 1, providing auxiliary support and guidance for the vibration of the filter screen 9.

[0032] Working principle of this utility model:

[0033] Refer to the instruction manual appendix Figure 1-6 When using this utility model, firstly, the wastewater to be treated is slowly poured into the treatment tank 2, and the servo motor 6 is started. The servo motor 6 starts to run, and its output end drives the gear 1 701 to rotate. The gear 1 701 drives the gear 2 702 to rotate through the toothed belt 703. The gear 2 702 then transmits the power to one of the crushing rollers 4 connected to it. Since the spur gears 8 at the shaft ends of the two crushing rollers 4 mesh, the other crushing roller 4 will rotate synchronously and in the opposite direction. The two crushing rollers 4 crush the large solid materials in the wastewater entering the treatment tank 2, breaking the large solid materials into smaller particles.

[0034] As the crushing roller 4 rotates, the second transmission gear 12, connected to one of the crushing rollers 4, also begins to rotate. The second transmission gear 12 meshes with the first transmission gear 11, transmitting the rotational power of the crushing roller 4 to the first transmission gear 11. The first transmission gear 11 then drives the end face gear 10 to rotate. When the end face gear 10 rotates, it drives the two small gears 13 meshed with it to rotate. The two small gears 13 drive the rotating rod 14 and the disc 15 to rotate, allowing the shaft pin 17 to slide within the strip groove 16 while rotating with the disc 15. The shaft pin 17 is hinged to the side wall of the filter screen 9 via the connecting rod 18, thereby... The rotational motion of the disc 15 is converted into the reciprocating linear motion of the filter screen 9, thus achieving the vibration of the filter screen 9. Under the action of the transmission mechanism, the filter screen 9 vibrates back and forth. At the same time, the ball bearing 19 on one side of the top of the filter screen 9 slides in the groove 20 of the support platform 1. The side walls on both sides of the discharge end of the filter screen 9 are slidably connected to the side walls of the bottom support legs of the support platform 1, providing auxiliary support and guidance for the vibration of the filter screen 9. Under the vibration of the filter screen 9, the crushed solid matter in the wastewater will not accumulate and block the filter screen 9. The liquid can be discharged smoothly through the pores of the filter screen 9, while the solid matter is trapped on the filter screen 9 and slides out through the discharge end.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for wastewater treatment, comprising a support platform (1), characterized in that: A processing box (2) is set above the support platform (1). Two crushing rollers (4) are arranged horizontally inside the processing box (2). A motor box (5) is set on one side of the outside of the processing box (2) and installed on the top surface of the support platform (1). A servo motor (6) is set inside the processing box (2). The output end of the servo motor (6) is connected to one of the crushing rollers (4) through a transmission component (7). An inclined filter screen (9) is set at the discharge end of the processing box (2). An end face gear (10) is set on one side of the outside of the filter screen (9) and is installed on the side wall of the support platform (1) through a rotating shaft. The end face gear (10) is connected to a transmission mechanism that drives the filter screen (9) to vibrate. A rolling structure that assists the vibration of the filter screen (9) is provided between the top side of the filter screen (9) and the support platform (1).

2. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The feed end of the processing box (2) is hinged with a box cover (3).

3. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The transmission assembly (7) includes a first gear (701) and a second gear (702). A toothed belt (703) is tensioned between the first gear (701) and the second gear (702). The first gear (701) is connected to the output end of the servo motor (6), and the second gear (702) is connected to the shaft end of the end face gear (10).

4. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: Each of the two crushing rollers (4) has a spur gear (8) mounted on its shaft end and located on the outside side of the processing box (2), and the two spur gears (8) mesh with each other.

5. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The transmission mechanism includes a first transmission gear (11), which is connected to one side of the end face gear (10). A second transmission gear (12) is meshed above the first transmission gear (11), and the second transmission gear (12) is connected to one of the crushing rollers (4).

6. A solid-liquid separation device for wastewater treatment according to claim 5, characterized in that: The end face gear (10) is meshed with two small gears (13) on the other side. A rotating rod (14) is connected between the two small gears (13). The two ends of the rotating rod (14) are respectively connected to a disc (15). A strip groove (16) is opened on the disc (15). A shaft pin (17) is provided in the strip groove (16) and can slide in the strip groove (16). The shaft pin (17) is hinged to the side wall of the filter screen (9) by a connecting rod (18).

7. A solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The rolling structure includes a ball (19) disposed on one side of the top of the filter screen (9), and a groove (20) is formed at the contact position between the support platform (1) and the ball (19), and the ball (19) can slide along the direction of the groove (20).

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