Automatic mud scraping and slag removing equipment for air flotation device

Abstract

The utility model provides automatic sludge scraping and slag removing equipment for an air floatation device, which belongs to the technical field of sewage treatment equipment and aims to solve the problem that sludge adhered to a scraping plate is difficult to remove after the existing sludge scraping equipment scrapes sludge, the automatic sludge scraping and slag removing equipment comprises a barrel and the scraping plate rotationally connected in the barrel, the scraping plate is attached to the inner wall of the barrel, and the barrel is provided with a plurality of air holes. The barrel is in transmission connection with a first motor; the wave ring is arranged on the scraper blade, and an annular wave surface is arranged at the lower part of the wave ring; the abutting ring is arranged on the periphery of the wave ring in a sliding and sleeving mode, and a lifting device for driving the abutting ring to move up and down is arranged on the upper portion of the abutting ring; a sleeve is installed in the middle of the scraper, and a transmission rod is slidably arranged in the sleeve in a sleeved mode. The roller is mounted at the top of the scraping plate, and the roller is arranged below the annular wavy surface; and the elastic piece can apply upward elastic force to the scraping plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewage treatment equipment, and more specifically, it relates to an automatic sludge scraping and slag removal device for an air flotation device. Background Technology

[0002] Dissolved air flotation devices work by dissolving air under pressure or releasing air under vacuum, causing dissolved air in the water to form microbubbles (20-100 μm in diameter), which then adhere to suspended particles and float to the surface for separation.

[0003] For example, a circular mechanical sludge flotation device with application number CN202210699926.9 includes: a flotation unit, an inlet pipe, and an air-water mixing tank. The flotation unit is arranged from the inside out with a central shaft, a guide baffle, and a sludge separating plate. One end of the central shaft is connected to the output shaft of a reduction motor, and the other end is connected to a sludge scraper located at the bottom of the flotation unit. The top of the flotation unit is equipped with a scum scraper, a scum flow channel, a scum collection tank, and a clear water tank. The scum scraper is connected to the central shaft. The shaft is fixedly connected; the scum flow channel is closed at one end near the central shaft, and the other end of the scum flow channel is open and connected to the scum collection tank, which is equipped with a scum discharge pipe; the clear water tank is equipped with a water discharge pipe; the bottom of the air flotation tank is equipped with a sludge discharge pipe; the air-water mixing tank is equipped with a compressed air inlet pipe, a front dissolved air inlet pipe and a dissolved air water inlet pipe; the dissolved air water inlet pipe and the inlet pipe outlet are located between the central shaft and the guide baffle, and the dissolved air water inlet pipe outlet is below the inlet pipe outlet, which is a simple structure.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it was discovered that after scraping mud, existing mud scraping equipment leaves mud and grime adhering to the scraper blades, which is difficult to remove.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an automatic sludge scraping and slag removal device for air flotation devices, in order to achieve a more practical purpose. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic sludge scraping and slag removal device for an air flotation device, so as to solve the problem that the existing sludge scraping equipment will have mud and scale adhering to the scraper after scraping, which is difficult to remove.

[0007] The purpose and effectiveness of this utility model's automatic sludge scraping and slag removal device for an air flotation apparatus are achieved through the following specific technical means:

[0008] An automatic sludge scraping and slag removal device for an air flotation unit includes:

[0009] The cylinder body and a scraper rotatably connected inside the cylinder body, the scraper being in contact with the inner wall of the cylinder body, and the cylinder body being driven by a first motor;

[0010] A wave ring is disposed on a scraper, and the lower part of the wave ring is provided with an annular wave surface;

[0011] Abutting ring, wherein the abutting ring is slidably sleeved on the outer periphery of the corrugated ring, and a lifting device is provided on the upper part of the abutting ring to drive it to move up and down;

[0012] A sleeve is installed in the middle of the scraper, and a transmission rod is slidably sleeved inside the sleeve;

[0013] Roller, the top of the scraper is equipped with a roller, the roller is located below the annular wave surface;

[0014] An elastic element capable of applying an upward elastic force to the scraper.

[0015] Furthermore, a groove is provided inside the sleeve, and a protrusion is provided on the outer periphery of the transmission rod, the protrusion being slidably connected to the groove.

[0016] Furthermore, the elastic element is a spring, a crossbeam is fixedly connected to the top of the cylinder, a wave ring and a first motor are fixedly connected to the crossbeam, one end of the spring is fixedly connected to the crossbeam, and the other end of the spring is fixedly connected to the sleeve.

[0017] Furthermore, the lifting device includes a rack arranged vertically and fixedly connected to the abutment ring, a guide sleeve fixedly connected to the abutment ring, a gear meshing with the rack, a second motor connected to the gear transmission, and a guide shaft slidably connected to the guide sleeve, wherein the guide shaft is fixedly connected to the crossbeam.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention, by setting an abutment ring 14, enables the scraper 12 to stably scrape and wash the inner surface of the cylinder 11 when rotating. After the abutment ring 14 rises, the annular wave surface 151 at the bottom of the wave ring 15 abuts against the roller 121. The roller 121 undulates along the annular wave surface 151, and the spring 124 therein pulls the scraper 12, so that the scraper 12 vibrates up and down when rotating, shaking off the dirt adhering to the surface of the scraper 12, thereby achieving the function of conveniently cleaning the dirt on the surface of the scraper 12. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an automatic sludge scraping and slag removal device for an air flotation apparatus according to this utility model.

[0021] Figure 2 This is an exploded structural diagram of an automatic sludge scraping and slag removal device for an air flotation apparatus according to this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 11. Cylinder body, 12. Scraper, 121. Roller, 122. Sleeve, 123. Transmission rod, 124. Spring, 13. First motor, 14. Abutment ring, 15. Wave ring, 151. Annular wave surface, 16. Lifting device, 161. Rack, 162. Guide sleeve, 163. Gear, 164. Second motor, 165. Guide shaft. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example

[0028] As attached Figure 1 To be continued Figure 2 As shown:

[0029] This utility model provides an automatic sludge scraping and slag removal device for an air flotation apparatus, comprising:

[0030] The cylinder 11 and the scraper 12 are rotatably connected inside the cylinder 11. The scraper 12 is in contact with the inner wall of the cylinder 11. The cylinder 11 is connected to a first motor 13.

[0031] A wave ring 15 is disposed on a scraper 12, and an annular wave surface 151 is provided at the lower part of the wave ring 15.

[0032] Abutting ring 14 is slidably sleeved on the outer periphery of the wave ring 15, and a lifting device 16 is provided on the upper part of the abutting ring 14 to drive it to move up and down.

[0033] A sleeve 122 is installed in the middle of the scraper 12, and a transmission rod 123 is slidably sleeved inside the sleeve 122;

[0034] Roller 121 is mounted on the top of scraper 12 and is positioned below the annular wave surface 151.

[0035] The elastic element is capable of applying an upward elastic force to the scraper 12.

[0036] In this embodiment, by setting an abutment ring 14, the scraper 12 can stably scrape and wash the inner surface of the cylinder 11 when it rotates. After the abutment ring 14 rises, the annular wave surface 151 at the bottom of the wave ring 15 abuts against the roller 121. The roller 121 moves up and down along the annular wave surface 151, and the spring 124 therein pulls the scraper 12, so that the scraper 12 vibrates up and down when it rotates, shaking off the dirt adhering to the surface of the scraper 12, so as to facilitate the cleaning of the dirt on the surface of the scraper 12.

[0037] The sleeve 122 has a groove, and the transmission rod 123 has a protrusion on its outer periphery, which is slidably connected to the groove.

[0038] The combination of the slot and the convex strip ensures that the transmission rod 123 and the sleeve 122 slide against each other, and also enables the transmission of rotational power.

[0039] The elastic element is a spring 124. A crossbeam is fixedly connected to the top of the cylinder 11. A wave ring 15 and a first motor 13 are fixedly connected to the crossbeam. One end of the spring 124 is fixedly connected to the crossbeam, and the other end of the spring 124 is fixedly connected to the sleeve 122.

[0040] The lifting device 16 includes a vertically arranged rack 161 fixedly connected to the abutment ring 14, a guide sleeve 162 fixedly connected to the abutment ring 14, a gear 163 meshing with the rack 161, a second motor 164 driven by the gear 163, and a guide shaft 165 slidably connected to the guide sleeve 162. The guide shaft 165 is fixedly connected to the crossbeam. The second motor 164 drives the gear 163 to rotate forward and backward, thereby driving the rack 161 to move up and down, which in turn drives the abutment ring 14 to move up and down, so as to realize the switching between the stable rotation and the shaking state of the scraper 12. When the abutment ring 14 abuts against the roller 121, the scraper 12 is in a stable rotation state; when the abutment ring 14 disengages from the roller 121 and the annular wave surface 151 of the wave ring 15 abuts against the roller 121, the scraper 12 is in a shaking state.

[0041] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic sludge scraping and slag removal device for an air flotation apparatus, characterized in that: The cylinder (11) and the scraper (12) rotatably connected inside the cylinder (11) are connected to the inner wall of the cylinder (11). The cylinder (11) is connected to a first motor (13). A wave ring (15) is disposed on a scraper (12), and an annular wave surface (151) is disposed at the lower part of the wave ring (15). Abutting ring (14) is slidably sleeved on the outer periphery of the wave ring (15), and a lifting device (16) is provided on the upper part of the abutting ring (14) to drive it to move up and down. A sleeve (122) is installed in the middle of the scraper (12), and a transmission rod (123) is slidably sleeved inside the sleeve (122). Roller (121), the top of the scraper (12) is equipped with roller (121), the roller (121) is located below the annular wave surface (151); An elastic element that can apply an upward elastic force to the scraper (12).

2. The automatic sludge scraping and slag removal equipment for an air flotation device as described in claim 1, characterized in that: The sleeve (122) is provided with a groove, and the transmission rod (123) is provided with a protrusion on its outer periphery. The protrusion is slidably connected to the groove.

3. The automatic sludge scraping and slag removal equipment for an air flotation device as described in claim 1, characterized in that: The elastic element is a spring (124). A crossbeam is fixedly connected to the top of the cylinder (11). A wave ring (15) and a first motor (13) are fixedly connected to the crossbeam. One end of the spring (124) is fixedly connected to the crossbeam, and the other end of the spring (124) is fixedly connected to the sleeve (122).

4. The automatic sludge scraping and slag removal equipment for an air flotation device as described in claim 3, characterized in that: The lifting device (16) includes a rack (161) that is vertically arranged and fixedly connected to the abutment ring (14), a guide sleeve (162) that is fixedly connected to the abutment ring (14), a gear (163) that meshes with the rack (161), a second motor (164) that is drivenly connected to the gear (163), and a guide shaft (165) that is slidably connected to the guide sleeve (162). The guide shaft (165) is fixedly connected to the crossbeam.

Images