Scum collecting device for secondary sedimentation tank

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a secondary sedimentation tank scum collecting device which comprises a supporting plate, a hydraulic cylinder, a moving plate, a rack, a first rotating shaft, a gear and a spiral conveyor. In the using process, the hydraulic cylinder is controlled to work, the movable plate can be driven to do linear motion, and then the rack is driven to do reciprocating motion. The gear can rotate in a reciprocating mode through the meshing effect between the teeth. And finally, the spiral conveyor rotates in a reciprocating manner, so that the collecting opening of the cylinder faces the water surface or the sky. When the collecting opening faces the water surface, the scum can enter the cylinder through the collecting opening. When the collecting opening faces the sky, the spiral conveyor is started, the scum can be pushed to move under the action of automatic gravity and friction force between the scum and the cylinder, and the scum collecting work is completed.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, for example, to a scum collection device for a secondary sedimentation tank. Background Art

[0002] The related art (publication number: CN220237852U) discloses a scum cleaning device on the water surface of a secondary sedimentation tank, including a scraper working bridge installed above the secondary sedimentation tank, a sludge discharge pipe located at the center of the secondary sedimentation tank connected to the middle of the scraper working bridge, a center tube with an upper port higher than the liquid level of the secondary sedimentation tank installed on the sludge discharge pipe, and a second scum baffle connected to the scraper working bridge. A slag pushing motor is also installed on the scraper working bridge. It also includes a slag pushing spiral arranged on the front side of the second slag baffle and connected to the slag pushing motor. A slag storage box with an upper port higher than the liquid level is also installed on the scraper working bridge, and a slag inlet is opened on the inner side of the slag storage box. The outer end of the slag pushing spiral is opposite to the slag inlet. The cleaning device also includes a slag discharge pump, which is connected to the center tube through a slag conveying pipe.

[0003] In the process of implementing the above embodiments, it is found that there are at least the following problems in the related art:

[0004] The scum on the liquid surface of the secondary sedimentation tank is forcibly pushed into the scum storage tank by the scum pushing screw to collect the scum. However, in the screw conveying equipment, the rotating spiral blades can push the material for transportation through the gravity of the material and the friction between the material and the tank wall. Therefore, the scum cannot be pushed to move and collect the scum only by the rotating scum pushing screw.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiment of the present disclosure provides a scum collecting device for a secondary sedimentation tank, so as to collect scum.

[0008] In some embodiments, a secondary sedimentation tank scum collection device includes: a support plate for connecting to a walking ladder of a secondary sedimentation tank; a hydraulic cylinder installed on the support plate; a movable plate connected to the movable end of the hydraulic cylinder, and the plane where the movable plate is located is parallel to the plane where the support plate is located; a rack installed on the movable plate along the movement direction of the movable end of the hydraulic cylinder; a first rotating shaft rotatably installed on the support plate, and the axis of the first rotating shaft is perpendicular to the plane where the support plate is located; a gear installed on the first rotating shaft and meshing with the rack; a screw conveyor, the screw conveyor includes a cylinder connected to the first rotating shaft, the axis of the cylinder coincides with the axis of the first rotating shaft, and the cylinder includes a collecting port opened on its side wall along its axial direction; wherein, when the movable end of the hydraulic cylinder is in an extended state, the collecting port faces the water surface; when the movable end of the hydraulic cylinder is in a retracted state, the collecting port faces the sky.

[0009] Optionally, the screw conveyor further includes: a second rotating shaft, rotatably mounted on the cylinder along the axial direction of the cylinder; a spiral blade, mounted on the second rotating shaft and located inside the cylinder; wherein the rotating shaft can be controlled to rotate to drive the spiral blade to rotate.

[0010] Optionally, the screw conveyor further comprises: a reducer mounted on the outer wall of the cylinder; and a motor mounted on the input end of the reducer; wherein the second rotating shaft is connected to the output end of the reducer.

[0011] Optionally, the screw conveyor further comprises: baffles mounted on the second rotating shaft and located on both sides of the spiral blade along the axial direction of the second rotating shaft, and the baffles on both sides are located inside the cylinder.

[0012] Optionally, the screw conveyor further comprises: a discharge port connected to the side wall of the cylinder for discharging materials.

[0013] Optionally, it also includes: a cushion block installed on the support plate; a guide rail installed on the cushion block along the movement direction of the moving end of the hydraulic cylinder; and a slider slidably installed on the guide rail and connected to the moving plate.

[0014] Optionally, it also includes: a bearing seat installed on the support plate; a bearing installed inside the bearing seat; wherein the first rotating shaft is installed inside the bearing.

[0015] Optionally, it also includes: a support mounted on the support plate; wherein the hydraulic cylinder is mounted on the support.

[0016] Optionally, it also includes: a floating joint installed between the moving end of the hydraulic cylinder and the moving plate.

[0017] The scum collecting device for a secondary sedimentation tank provided in the embodiment of the present disclosure can achieve the following technical effects:

[0018] A secondary sedimentation tank scum collecting device provided by the embodiment of the present disclosure includes a support plate, a hydraulic cylinder, a movable plate, a rack, a first rotating shaft, a gear and a screw conveyor. The support plate is used to be connected to the walking ladder of the secondary sedimentation tank, and then the entire device is fixed to the walking ladder. The hydraulic cylinder is installed on the support plate to provide a driving force. The movable plate is connected to the movable end of the hydraulic cylinder and moves under the drive of the hydraulic cylinder. The rack is installed on the movable plate along the movement direction of the movable end of the hydraulic cylinder to transmit the driving force. The first rotating shaft is rotatably installed on the support plate and can rotate relative to the support plate. The gear is installed on the first rotating shaft and rotates synchronously with the first rotating shaft. The gear and the rack are meshed with each other, and the two together convert the linear motion into rotational motion. The screw conveyor includes a cylinder connected to the first rotating shaft, and the cylinder rotates under the drive of the first rotating shaft. The cylinder includes a collecting port opened on its side wall along its axial direction, and the collecting port is used to collect scum on the water surface. When the movable end of the hydraulic cylinder is in an extended state, the collecting port faces the water surface so that the scum can enter the cylinder through the collecting port. When the movable end of the hydraulic cylinder is in a retracted state, the collecting port faces the sky to prevent the scum from being discharged from the collecting port during the transportation process.

[0019] During use, the hydraulic cylinder is controlled to work, which can drive the moving plate to do linear motion, and then drive the rack to move back and forth. Through the meshing action between the teeth, the gear can rotate back and forth. Then the rotating shaft is driven to rotate back and forth, and finally the screw conveyor rotates back and forth, so that the collection port of the cylinder faces the water surface or the sky. When the collection port faces the water surface, the scum can enter the inside of the cylinder through the collection port. When the collection port faces the sky, the screw conveyor is started, and the scum can be pushed and moved by the automatic gravity and the friction between it and the cylinder, completing the collection of the scum.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 It is a schematic cross-sectional structure diagram of a secondary sedimentation tank scum collection device provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 It is a schematic diagram of the main structure of a secondary sedimentation tank scum collection device provided by an embodiment of the present disclosure;

[0025] Figure 4 It is a side structural schematic diagram of a secondary sedimentation tank slag collection device provided in an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1: Support plate; 2: Hydraulic cylinder; 3: Moving plate; 4: Rack; 5: First rotating shaft; 6: Gear; 7: Cylinder; 8: Second rotating shaft; 9: Spiral blade; 10: Reducer; 11: Motor; 12: Baffle; 13: Discharge port; 14: Pad; 15: Guide rail; 16: Slider; 17: Bearing seat; 18: Support; 19: Floating joint. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0034] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0036] Combination Figures 1 to 4 As shown, the embodiment of the present disclosure provides a secondary sedimentation tank scum collection device, including a support plate 1, a hydraulic cylinder 2, a movable plate 3, a rack 4, a first rotating shaft 5, a gear 6 and a screw conveyor. The support plate 1 is used to be connected to the walking ladder of the secondary sedimentation tank. The hydraulic cylinder 2 is installed on the support plate 1. The movable plate 3 is connected to the movable end of the hydraulic cylinder 2, and the plane where the movable plate 3 is located is parallel to the plane where the support plate 1 is located. The rack 4 is installed on the movable plate 3 along the movement direction of the movable end of the hydraulic cylinder 2. The first rotating shaft 5 is rotatably installed on the support plate 1, and the axis of the first rotating shaft 5 is perpendicular to the plane where the support plate 1 is located. The gear 6 is installed on the first rotating shaft 5 and meshes with the rack 4. The screw conveyor includes a cylinder 7 connected to the first rotating shaft 5, the axis of the cylinder 7 coincides with the axis of the first rotating shaft 5, and the cylinder 7 includes a collection port opened on its side wall along its axial direction. Wherein, when the movable end of the hydraulic cylinder 2 is in an extended state, the collection port faces the water surface. When the moving end of the hydraulic cylinder 2 is in the retracted state, the collecting port faces the sky.

[0037] A secondary sedimentation tank scum collection device provided in an embodiment of the present disclosure includes a support plate 1, a hydraulic cylinder 2, a movable plate 3, a rack 4, a first rotating shaft 5, a gear 6 and a screw conveyor. The support plate 1 is used to be connected to the walking ladder of the secondary sedimentation tank, and then the entire device is fixed to the walking ladder. The hydraulic cylinder 2 is installed on the support plate 1 to provide a driving force. The movable plate 3 is connected to the moving end of the hydraulic cylinder 2 and moves under the drive of the hydraulic cylinder 2. The rack 4 is installed on the movable plate 3 along the movement direction of the moving end of the hydraulic cylinder 2 to transmit the driving force. The first rotating shaft 5 is rotatably installed on the support plate 1 and can rotate relative to the support plate 1. The gear 6 is installed on the first rotating shaft 5 and rotates synchronously with the first rotating shaft 5. The gear 6 and the rack 4 are meshed with each other, and the two together convert the linear motion into rotational motion. The screw conveyor includes a cylinder 7 connected to the first rotating shaft 5, and the cylinder 7 rotates under the drive of the first rotating shaft 5. The cylinder 7 includes a collecting port opened on its side wall along its axial direction, and the collecting port is used to collect scum on the water surface. When the moving end of the hydraulic cylinder 2 is in an extended state, the collecting port faces the water surface, so that the scum can enter the interior of the cylinder 7 through the collecting port. When the moving end of the hydraulic cylinder 2 is in a retracted state, the collecting port faces the sky to prevent the scum from being discharged from the collecting port during the transportation process.

[0038] During use, the hydraulic cylinder 2 is controlled to work, which can drive the moving plate 3 to make linear motion, and then drive the rack 4 to move back and forth. Through the meshing action between the teeth, the gear 6 can rotate back and forth. Then the rotating shaft is driven to rotate back and forth, and finally the screw conveyor rotates back and forth, so that the collection port of the cylinder 7 faces the water surface or the sky. When the collection port faces the water surface, the scum can enter the inside of the cylinder 7 through the collection port. When the collection port faces the sky, the screw conveyor is started, and the scum can be pushed and moved under the action of the automatic gravity and the friction between it and the cylinder 7, completing the collection of the scum.

[0039] Optionally, combined Figure 1 and 3 As shown, the screw conveyor further includes a second rotating shaft 8 and a spiral blade 9. The second rotating shaft 8 is rotatably mounted on the cylinder 7 along the axial direction of the cylinder 7. The spiral blade 9 is mounted on the second rotating shaft 8 and is located inside the cylinder 7. The rotating shaft can be controlled to rotate to drive the spiral blade 9 to rotate.

[0040] In the disclosed embodiment, the screw conveyor further includes a second rotating shaft 8 and a spiral blade 9. The second rotating shaft 8 is used to support and install the spiral blade 9, and the spiral blade 9 is used to push the scum to move. During use, the second rotating shaft 8 can rotate under the drive of an external force, thereby driving the spiral blade 9 to rotate. Then, the scum entering the cylinder 7 can be pushed to move, completing the cleaning and collection of the scum on the water surface.

[0041] Optionally, combined Figure 1 and Figure 3 As shown, the screw conveyor further includes a reducer 10 and a motor 11. The reducer 10 is mounted on the outer wall of the cylinder 7. The motor 11 is mounted on the input end of the reducer 10. The second rotating shaft 8 is connected to the output end of the reducer 10.

[0042] In the disclosed embodiment, the screw conveyor further includes a reducer 10 and a motor 11. The reducer 10 is used to support and install the motor 11, and the motor 11 is used to provide driving force. During use, the motor 11 is controlled to work, and the second rotating shaft 8 can be driven to rotate through the reducer 10, thereby driving the spiral blade 9 to rotate. In addition, the design of the reducer 10 can reduce the rotation speed, thereby increasing the output torque.

[0043] Optionally, combined Figures 1 to 3 As shown, the screw conveyor further includes a baffle 12 . The baffle 12 is mounted on the second rotating shaft 8 , and is located on both sides of the spiral blade 9 along the axial direction of the second rotating shaft 8 , and both baffles 12 on both sides are located inside the cylinder 7 .

[0044] In the disclosed embodiment, the screw conveyor further comprises a baffle 12 mounted on the second rotating shaft 8 and located inside the cylinder 7. Along the axial direction of the second rotating shaft 8, the baffles 12 are located on both sides of the spiral blade 9, and both baffles 12 are used to block scum to prevent the scum from entering the gap between the second rotating shaft 8 and the cylinder 7.

[0045] Optionally, combined Figure 1 and Figure 3 As shown, the screw conveyor further comprises a discharge port 13. The discharge port 13 is connected to the side wall of the cylinder 7 for discharging materials.

[0046] In the disclosed embodiment, the screw conveyor further comprises a discharge port 13 connected to the side wall of the cylinder 7. The discharge port 13 is used to discharge the scum, so as to facilitate the collection of the scum.

[0047] Optionally, combined Figures 1 to 3 As shown, it also includes a cushion block 14, a guide rail 15 and a slider 16. The cushion block 14 is mounted on the support plate 1. The guide rail 15 is mounted on the cushion block 14 along the moving direction of the moving end of the hydraulic cylinder 2. The slider 16 is slidably mounted on the guide rail 15 and connected to the moving plate 3.

[0048] In the disclosed embodiment, a pad 14, a guide rail 15 and a slider 16 are also included. The pad 14 is used to support and raise the position of the guide rail 15 and the slider 16. The guide rail 15 and the slider 16 are used to guide and support to improve the stability of the moving plate 3 during movement and reduce the radial force on the moving end of the hydraulic cylinder 2.

[0049] Optionally, combined Figures 1 to 3As shown, it also includes a bearing seat 17 and a bearing. The bearing seat 17 is installed on the support plate 1. The bearing is installed inside the bearing seat 17. Among them, the first rotating shaft 5 is installed inside the bearing.

[0050] In the disclosed embodiment, a bearing seat 17 and a bearing are also included. The bearing seat 17 is used to support and install the bearing and to limit the bearing. The bearing is used to support and install the rotatable first rotating shaft 5, reduce the friction force on the first rotating shaft 5, and improve the rotation accuracy of the first rotating shaft 5.

[0051] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, it also includes a support 18. The support 18 is installed on the support plate 1. Among them, the hydraulic cylinder 2 is installed on the support 18.

[0052] In the disclosed embodiment, a support 18 is also included which is mounted on the support plate 1. The support seat is used to support and install the hydraulic cylinder 2 so as to facilitate the disassembly and replacement of the hydraulic cylinder 2.

[0053] Optionally, combined Figures 1 to 4 As shown, a floating joint 19 is also included. The floating joint 19 is installed between the moving end of the hydraulic cylinder 2 and the moving plate 3.

[0054] In the disclosed embodiment, a floating joint 19 is also included which is installed between the moving end of the hydraulic cylinder 2 and the moving plate 3. The floating joint 19 is used to reduce the installation error so that the moving end of the hydraulic cylinder 2 can move smoothly, thereby extending the service life of the hydraulic cylinder 2.

[0055] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A secondary sedimentation tank scum collection device, characterized in that: include: A support plate, used to connect with the walking staircase of the secondary sedimentation tank; A hydraulic cylinder mounted on the support plate; A movable plate connected to the movable end of the hydraulic cylinder, wherein the plane where the movable plate is located is parallel to the plane where the supporting plate is located; a rack mounted on the moving plate along the moving direction of the moving end of the hydraulic cylinder; A first rotating shaft is rotatably mounted on the support plate, wherein the axis of the first rotating shaft is perpendicular to the plane where the support plate is located; a gear, mounted on the first rotating shaft and meshing with the rack; A screw conveyor, the screw conveyor comprising a cylinder connected to the first rotating shaft, the axis of the cylinder coincides with the axis of the first rotating shaft, and the cylinder comprises a collecting port opened on its side wall along its axial direction; Wherein, when the moving end of the hydraulic cylinder is in an extended state, the collecting port faces the water surface; when the moving end of the hydraulic cylinder is in a retracted state, the collecting port faces the sky.

2. A secondary sedimentation tank scum collection device according to claim 1, characterized in that: The screw conveyor also includes: A second rotating shaft is rotatably mounted on the cylinder along the axial direction of the cylinder; A spiral blade, mounted on the second rotating shaft and located inside the cylinder; The rotating shaft can be controlled to rotate so as to drive the spiral blade to perform rotational motion.

3. A secondary sedimentation tank scum collection device according to claim 2, characterized in that: The screw conveyor also includes: A reducer, mounted on the outer wall of the cylinder; A motor, mounted at the input end of the reducer; Wherein, the second rotating shaft is connected to the output end of the reducer.

4. A secondary sedimentation tank scum collection device according to claim 2, characterized in that: The screw conveyor also includes: The baffles are installed on the second rotating shaft and are located on both sides of the spiral blade along the axial direction of the second rotating shaft. The baffles on both sides are located inside the cylinder.

5. The secondary sedimentation tank scum collecting device according to claim 1, characterized in that: The screw conveyor also includes: The discharge port is connected to the side wall of the cylinder and is used for discharging materials.

6. A secondary sedimentation tank scum collection device according to any one of claims 1 to 5, characterized in that: Also includes: A cushion block, mounted on the support plate; A guide rail, mounted on the pad along the movement direction of the moving end of the hydraulic cylinder; The slider is slidably mounted on the guide rail and connected to the moving plate.

7. A secondary sedimentation tank scum collection device according to any one of claims 1 to 5, characterized in that: Also includes: A bearing seat, mounted on the support plate; A bearing, installed inside the bearing seat; Wherein, the first rotating shaft is installed inside the bearing.

8. A secondary sedimentation tank scum collection device according to any one of claims 1 to 5, characterized in that: Also includes: A support, mounted on the support plate; Wherein, the hydraulic cylinder is installed on the support.

9. A secondary sedimentation tank scum collection device according to any one of claims 1 to 5, characterized in that: Also includes: A floating joint is installed between the moving end of the hydraulic cylinder and the moving plate.

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