Three-arm rotating wheel for cleaning sawtooth weir and scum baffle of sewage sedimentation tank

Abstract

The invention relates to the technical field of sewage treatment equipment, in particular to a three-arm rotating wheel for cleaning a sawtooth weir and a scum baffle of a sewage sedimentation tank, which comprises a bracket arranged on the left side of a rotating bridge frame, the right end of the bracket is rotatably connected with the rotating bridge frame through a hinge, and the left end of the bracket is sleeved with a rotatable drum; three groups of rotating wheel arms are fixedly arranged on the rotating drum at equal angles along the circumferential surface, brushes for cleaning are arranged on the front and rear sides and the outer end surface of the three groups of rotating wheel arms, a cross rod is longitudinally and fixedly arranged in the bracket, the position of the cross rod does not influence the rotation of the rotating wheel arms, a hanging buckle for connecting a hook is welded on the cross rod, and the hook is hung on the hanging buckle. The right side of the hook is fixedly connected with a hoisting steel wire rope; the right end of the hoisting steel wire rope is wound on the electric capstan. By designing the three-arm rotating wheel structure, the saw-tooth weir and the scum baffle are automatically cleaned, the cleaning efficiency is greatly improved, the cleaning period is shortened, the manual labor intensity is reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to a three-arm rotor for cleaning a sawtooth weir and a scum baffle of a sewage sedimentation tank. Background Art

[0002] If a scum baffle is installed in the sedimentation tank of a sewage treatment plant, a support plate of the scum baffle is generally provided in a direction perpendicular to the scum baffle. The support plate is located between the scum baffle and the serrated weir plate, and is perpendicular to the serrated weir plate, and is fixed to the sump together with the serrated weir plate.

[0003] The weir mouth of the sawtooth weir is often blocked by the scum that is missed, which affects the sedimentation effect. Green algae often breed in the rectangular space formed by the scum baffle, sawtooth weir and support plate, which makes the site messy. The roots of the algae will increase the corrosion of the sawtooth weir and the scum baffle. Therefore, it is necessary to regularly clean the weir mouth of the sawtooth weir and remove the green algae between the scum baffle and the sawtooth weir.

[0004] If a brush with the same width as the scum baffle and the sawtooth weir is hung behind the rotary sludge suction bridge of the sedimentation tank, and the scum and green algae are scraped off with the brush, the brush cannot pass due to the horizontal block of the support plate, and the purpose of cleaning cannot be achieved. Therefore, there are still many sewage treatment plants that complete the cleaning of the sawtooth weir and the scum baffle by workers manually cleaning, which is a large workload and not timely. Therefore, as mentioned above, it is necessary to design a device that can overcome the obstruction of the support plate and effectively clean the sawtooth weir and the scum baffle. Summary of the invention

[0005] In view of the existing deficiencies, the present invention aims to provide a three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank, so as to solve the problems of low cleaning efficiency and heavy workload in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A three-arm wheel for cleaning a sawtooth weir and a scum baffle in a sewage sedimentation tank, comprising a bracket arranged on the left side of a rotating bridge frame, the right end of the bracket being rotatably connected to the rotating bridge frame by a hinge, a rotatable drum being sleeved on the left end of the bracket, three groups of wheel arms being fixedly provided at equal angles along a circumferential surface on the drum, brushes for cleaning being provided on the front and rear sides and outer end surfaces of the three groups of wheel arms, a cross bar being fixedly provided longitudinally inside the bracket, and the position of the cross bar not affecting the rotation of the wheel arm, a hook being welded on the cross bar for connecting a hook, a hook being hung on the hook, a lifting wire rope being fixedly connected to the right side of the hook, the right end of the lifting wire rope being wound around an electric winch, and the electric winch being fixedly mounted on the rotating bridge frame by bolts.

[0008] Furthermore, the rotating wheel arm is configured as an arc-shaped structure, and its arc is in the shape of a cycloid, and the equation of the cycloid is determined according to the rotation speed of the rotating bridge.

[0009] Furthermore, the front and rear sides and the outer end of the rotating wheel arm are provided with slots, and removable buckle plates are provided inside the slots on the front and rear sides. The brushes on the front and rear side surfaces of the rotating wheel arm are fixed on the buckle plates in a vertical structure, and a removable top plate is provided inside the slots at the outer end. The brush at the outer end of the rotating wheel arm is fixed on the top plate in a structure consistent with the extension direction of the outer end of the rotating arm.

[0010] Furthermore, the width of the brush at the outer end of the rotor arm is the same as the width of the support plate between the sawtooth weir and the scum baffle in the sedimentation tank, and the total length of the brushes on the front and rear sides of the rotor arm is greater than the spacing width between the sawtooth weir and the scum baffle.

[0011] Furthermore, the installation height of the rotating drum is higher than the top height of the scum baffle and has an appropriate distance from the top height of the support plate, and the length of the rotor arm is twice the distance from the rotating drum to the bottom end of the scum baffle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention realizes automatic cleaning of the sawtooth weir and the scum baffle by designing a three-arm rotor structure, which greatly improves the cleaning efficiency, shortens the cleaning cycle, reduces the labor intensity and reduces the labor cost.

[0014] 2. The cycloid shape design of the rotary arm in the present invention enables the rotary arm to more smoothly cross the obstruction of the support plate, thereby improving the cleaning quality and ensuring the normal operation of the rotary arm. At the same time, it more effectively converts the horizontal force into the vertical force, thereby improving the cleaning effect.

[0015] 3. The brush of the present invention can be installed in various ways, such as being inserted into a slot or fixed by screws, thus ensuring the stability and durability of the brush.

[0016] 4. The electric winch provided in the present invention is connected to the bracket through the lifting wire rope, which is convenient for adjusting the cleaning height of the three-arm rotating wheel, and at the same time facilitates the maintenance and replacement of the three-arm rotating wheel, thereby improving the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram from another angle of the present invention.

[0019] Figure 3 It is a front view of the present invention.

[0020] Figure 4 It is a schematic diagram of the local structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the rotating wheel arm and the brush in the present invention.

[0022] Figure 6 It is a schematic diagram of the use state of the present invention.

[0023] In the figure: 1. brush; 1.1. buckle plate; 1.2. top plate; 2. rotating wheel arm; 21. slot; 3. rotating drum; 4. bracket; 5. rotating bridge; 6. electric winch; 7. cross bar; 8. lifting wire rope; 9. hook; 10. hinge; 11. hook. DETAILED DESCRIPTION

[0024] The following will be combined with 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 making creative work are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figures 1 to 6 As shown, a three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank comprises a bracket 4 arranged on the left side of a rotating bridge frame 5, the right end of the bracket 4 is rotatably connected to the rotating bridge frame 5 by a hinge 10, a rotatable drum 3 is sleeved on the left end of the bracket 4, three groups of wheel arms 2 are fixedly arranged at equal angles along the circumferential surface of the drum 3, this layout ensures uniformity and comprehensiveness of cleaning, the front and rear sides and the outer end surfaces of the three groups of wheel arms 2 are all provided with brushes 1 for cleaning, this arrangement can ensure that the sawtooth weir and the scum baffle are cleaned in all directions during the rotation process, a cross bar 7 is fixedly arranged longitudinally inside the bracket 4, and the position of the cross bar 7 does not affect the rotation The wheel arm 2 rotates, and a hook 11 for connecting the hook 9 is welded on the cross bar 7. The hook 9 is hung on the hook 11. A lifting wire rope 8 is fixedly connected to the right side of the hook 9. The right end of the lifting wire rope 8 is wound around the electric winch 6, and the electric winch 6 is fixedly installed on the rotating bridge frame 5 by bolts. By controlling the retraction and extension of the electric winch 6, the three-arm turntable can be easily lifted or lowered to meet the cleaning needs of different heights. At the same time, it is convenient to lift the rotating arm to replace the brush 1. This design solves the problem that the cleaning work of the sawtooth weir and the scum baffle is usually completed by workers manually cleaning in the prior art, which has a large workload and is not timely, and the cleaning efficiency is low.

[0027] In this embodiment, the rotating arm 2 is configured as an arc structure, and its curvature is in the shape of a cycloid, and the equation of the cycloid is determined according to the rotational speed of the rotating bridge 5. The rotating arm 2 is made into a cycloid-shaped curvature, which can more effectively transfer the linear force of the rotating arm 2 to the end of the rotating arm 2 and convert it into a vertical force, thereby more smoothly crossing the obstruction of the support plate.

[0028] In this embodiment, the front and rear sides and the outer end of the wheel arm 2 are provided with a slot 21, and a detachable gusset plate 1.1 is provided inside the slots 21 on the front and rear sides. The brushes 1 on the front and rear sides of the wheel arm 2 are fixed on the gusset plate 1.1 in a vertical structure, and a detachable top plate 1.2 is provided inside the slots 21 on the outer end. The brush 1 on the outer end of the wheel arm 2 is fixed on the top plate 1.2 in a structure consistent with the extension direction of the outer end of the wheel arm 2. This design adopts a detachable structural design, which is convenient for disassembling and replacing the brush 1 on the wheel arm 2.

[0029] In this embodiment, the width of the brush 1 at the outer end of the rotor arm 2 is the same as the width of the support plate between the serrated weir and the scum baffle in the sedimentation tank, which is convenient for cleaning the surface of the support plate. The total length of the brushes 1 on the front and rear sides of the rotor arm 2 is greater than the spacing width between the serrated weir and the scum baffle. This design enables the elastic brush 1 to always fit on the inner side surfaces of the serrated weir and the scum baffle, thereby cleaning the contact surfaces on both sides.

[0030] In this embodiment, the installation height of the drum 3 is higher than the top height of the scum baffle, and has an appropriate distance from the top height of the support plate. This design prevents the rotor arm 2 from colliding with the scum baffle during rotation, avoiding the risk of equipment damage. At the same time, the higher installation position also enables the rotor arm 2 to more effectively cover the area above the scum baffle, ensuring thorough cleaning. The length of the rotor arm 2 is twice the distance from the drum 3 to the bottom end of the scum baffle. This design ensures that the rotor arm 2 can completely cover the entire area from the drum 3 to the bottom end of the scum baffle during rotation, including the side and bottom of the scum baffle. The longer length of the rotor arm 2 provides a larger cleaning area and stronger cleaning force, which helps to remove stubborn dirt and impurities and keep the sawtooth weir and the scum baffle clean.

[0031] The working principle of the three-arm wheel for cleaning the sawtooth weir and the scum baffle of the sewage sedimentation tank is as follows: under the drag of the sedimentation tank rotating bridge 5, the three-arm wheel slides and rotates between the scum baffle and the sawtooth weir, and at least one wheel arm 2 is submerged in water during the rotation to play a cleaning role. When the wheel arm 2 rotates, the wheel arm 2 submerged in water drives the brush 1 thereon to move between the sawtooth weir and the scum baffle. Since the total width of the wheel arm 2 and the brushes 1 on both sides is slightly larger than the distance from the scum baffle to the sawtooth weir, the elastic brush 1 plays a role in cleaning the contact surfaces on both sides, and can clean up the impurities on the contact surfaces on the inner side of the scum baffle and the sawtooth weir. When the three-arm wheel moves forward and the end of one of the wheel arms 2 hits the support plate, due to the appropriate height distance between the rotating drum 3 and the top of the support plate, a downward component force is formed between the end of the wheel arm 2 and the support plate, causing the wheel arm 2 to rotate and slide downward along the contact surface of the support plate, thereby cleaning the support plate and allowing the wheel to cross the support plate by rotating, avoiding the support plate from blocking the brush 1.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank, characterized in that: The invention comprises a bracket (4) arranged on the left side of a rotating bridge frame (5), the right end of the bracket (4) being rotatably connected to the rotating bridge frame (5) via a hinge (10), the left end of the bracket (4) being sleeved with a rotatable drum (3), three groups of rotating wheel arms (2) being fixedly arranged at equal angles along the circumferential surface of the drum (3), the front and rear sides and the outer end surfaces of the three groups of rotating wheel arms (2) being provided with brushes (1) for cleaning, a cross bar (7) being fixedly arranged inside the bracket (4) in the longitudinal direction, and the position of the cross bar (7) not affecting the rotation of the rotating wheel arm (2), a hook (11) being welded on the cross bar (7) for connecting a hook (9), the hook (9) being hung on the hook (11), a lifting wire rope (8) being fixedly connected to the right side of the hook (9), the right end of the lifting wire rope (8) being wound around an electric winch (6), and the electric winch (6) being fixedly installed on the rotating bridge frame (5) via bolts.

2. The three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank according to claim 1, characterized in that: The rotating wheel arm (2) is configured as an arc-shaped structure, and its arc is in the shape of a cycloid, and the equation of the cycloid is determined according to the rotation speed of the rotating bridge (5).

3. The three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank according to claim 2, characterized in that: The front and rear sides and the outer end of the rotating wheel arm (2) are provided with a slot (21), the slots (21) on the front and rear sides are provided with a detachable buckle plate (1.1), the brushes (1) on the front and rear sides of the rotating wheel arm (2) are fixed on the buckle plate (1.1) in a vertical structure, the slots (21) on the outer end are provided with a detachable top plate (1.2), and the brush (1) on the outer end of the rotating wheel arm (2) is fixed on the top plate (1.2) in a structure consistent with the extension direction of the outer end of the rotating wheel arm (2).

4. The three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank according to claim 3, characterized in that: The width of the brush (1) at the outer end of the rotor arm (2) is the same as the width of the support plate between the sawtooth weir and the scum baffle in the sedimentation tank, and the total length of the brushes (1) on the front and rear sides of the rotor arm (2) is greater than the spacing width between the sawtooth weir and the scum baffle.

5. The three-arm wheel for cleaning the sawtooth weir and scum baffle of a sewage sedimentation tank according to claim 4, characterized in that: The installation height of the rotating drum (3) is higher than the top height of the scum baffle plate and has an appropriate distance from the top height of the support plate. The length of the rotating wheel arm (2) is twice the distance from the rotating drum (3) to the bottom end of the scum baffle plate.

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