A kind of waste water treatment system gas floatation tank's bubble scraping device

Abstract

The utility model relates to wastewater treatment technical field discloses a kind of bubble scraping device of wastewater treatment system air flotation tank, including air flotation tank body, the back of air flotation tank body is connected with transmission pipeline, the front of air flotation tank body is connected with outlet pipeline, the utility model is rotated by servo motor drive screw rod in moving mechanism inside installation block, drive first sliding block connected with it screw thread and move along first sliding groove stable linearly, further drive first sliding block right side connecting block, the horizontal movement of rotating shaft and scraper outside rotating shaft rotationally connected in connecting block is generated to cover air flotation tank body surface, to realize the preliminary extension of scraper to air flotation tank surface foam coverage range, avoid the partial omission problem caused by unstable movement of foam, guarantee the basic coverage effect of subsequent bubble scraping operation, and maintain the normal process of wastewater transmission and discharge in wastewater treatment system, do not affect overall processing rhythm.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a foam scraping device for an air flotation tank in a wastewater treatment system. Background Technology

[0002] With the continuous expansion of industrial production scale and increasingly stringent environmental protection requirements, the discharge of various types of wastewater continues to increase. Among them, wastewater containing complex components has brought enormous pressure to the environment. Against this backdrop, efficient wastewater treatment technologies have emerged and are constantly developing. Air flotation, as an important solid-liquid separation method, is widely used. It utilizes tiny bubbles to attach suspended matter and make it float to the water surface to form a foam layer, thereby achieving the separation of pollutants from water. However, if a large amount of accumulated foam is not cleaned in time, it will affect the normal operation of the system and the treatment effect. This has led to the development of foam scraping devices specifically for air flotation tanks. These devices can effectively collect and discharge surface foam, ensuring the stability and efficiency of the air flotation process, and have become an indispensable key link in wastewater treatment systems.

[0003] Traditional foam scraping devices have significant drawbacks. In terms of coverage efficiency, traditional devices mostly rely on manual scraping, making it difficult to stably and consistently cover the entire area of ​​the flotation tank. This often results in some areas where foam cannot be reached, leading to low coverage efficiency. Furthermore, in terms of thoroughness and flexibility, the scraper angle is not easy to adjust, which can easily lead to foam residue. Additionally, it is difficult to adjust the scraper's movement speed and angle according to the actual foam conditions, resulting in poor flexibility and an inability to adapt to the foam scraping needs under different operating conditions within the flotation tank. Consequently, this affects the stability of the subsequent wastewater treatment process. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a foam scraping device for an air flotation tank in a wastewater treatment system.

[0005] This utility model is achieved using the following technical solution: a foam scraping device for a flotation tank in a wastewater treatment system, comprising a flotation tank body, a transmission pipe connected to the back of the flotation tank body, an outlet pipe connected to the front of the flotation tank body, and an installation block connected to the top of the flotation tank body, and further comprising:

[0006] A moving mechanism, the moving mechanism including a threaded rod rotatably connected inside the mounting block, the threaded rod having a first sliding block externally threadedly connected to it;

[0007] A rotating mechanism, comprising a convex shaft rotatably connected inside the mounting block, wherein a scraper is provided on the inner side of the mounting block.

[0008] As a further improvement to the above solution, the mounting block has a first sliding groove inside, a servo motor is connected to the back of the mounting block, and the threaded rod is connected to the output end of the servo motor.

[0009] The above technical solution provides a stable power source and motion guidance foundation for the moving mechanism, avoiding the problems of unstable rotation of the threaded rod and inability of the first sliding block to move in a directional manner due to lack of power drive or track constraints. It ensures the stability of the horizontal movement trajectory of the scraper and lays the power and structural foundation for expanding the foam coverage area and avoiding local omissions.

[0010] As a further improvement to the above solution, the first sliding block is slidably connected inside the first sliding groove, a connecting block is connected to the right side of the first sliding block, and a connecting plate is connected to the top of the first sliding block.

[0011] The above technical solution realizes the transmission of power from the moving mechanism to the rotating shaft and the rotating mechanism, avoiding the situation where the first sliding block deviates or the power cannot be effectively transmitted when it moves, further ensuring the accuracy of the horizontal movement of the scraper, and at the same time building a connecting bridge for the coordinated operation of the moving mechanism and the rotating mechanism.

[0012] As a further improvement to the above solution, a second sliding groove is provided inside the mounting block, a drive motor is connected to the back of the mounting block, and the convex shaft is connected to the output end of the drive motor.

[0013] The above technical solution provides stable power output and motion guidance for the rotating mechanism, avoiding problems such as disordered rotation of the cam shaft and inability of the second sliding block to slide in an orderly manner due to insufficient power or lack of track constraint. It ensures that the subsequent angle adjustment and rotation scraping action of the scraper can be carried out stably, providing power support for efficient foam removal and avoiding residue.

[0014] As a further improvement to the above solution, a second sliding block is slidably connected inside the second sliding groove. The second sliding block is connected to the bottom of the connecting plate, and a connecting sleeve is rotatably connected inside the second sliding block. The connecting sleeve is slidably connected to the outside of the convex shaft.

[0015] The above technical solution enables the synchronous movement of the moving mechanism and the rotating mechanism, avoiding the problem that the scraper can only move or rotate in isolation due to the disconnection of their movements. It ensures that the scraper can rotate synchronously during horizontal movement, providing structural linkage guarantee for the coordinated operation of "horizontal movement + rotation scraping".

[0016] As a further improvement to the above solution, a first bevel gear is connected to the outside of the connecting sleeve, and a rotating shaft is rotatably connected inside the second sliding block. The end of the rotating shaft away from the second sliding block is rotatably connected inside the connecting block.

[0017] The above technical solution provides a stable transmission path and structural support for the meshing transmission of the first bevel gear and the subsequent second bevel gear, avoiding the problem of bevel gear misalignment and power transmission interruption caused by the shaking of the rotating shaft, ensuring that the power of the rotating mechanism can be effectively transmitted to the scraper, and ensuring the stability of the scraper's rotation and scraping.

[0018] As a further improvement to the above solution, a second bevel gear is connected to the outside of the rotating shaft, the second bevel gear meshing with the first bevel gear, and the scraper is connected to the outside of the rotating shaft.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention utilizes a servo motor in a moving mechanism to drive a threaded rod to rotate inside an installation block. This rotation causes a first sliding block, which is threadedly connected to the first sliding block, to move smoothly and linearly along a first sliding groove. Consequently, the connecting block on the right side of the first sliding block, the rotating shaft connected within the connecting block, and the scraper outside the rotating shaft generate a horizontal movement trajectory covering the surface of the flotation tank. This achieves the initial expansion of the foam coverage area on the surface of the flotation tank by the scraper, avoiding the problem of partial foam leakage due to unstable movement. This ensures the basic coverage effect of subsequent foam scraping operations and maintains the normal flow of wastewater transmission and discharge in the wastewater treatment system without affecting the overall treatment rhythm.

[0021] This invention utilizes a drive motor in a rotating mechanism to rotate a cam shaft, causing the external connecting sleeve of the cam shaft to drive a second sliding block to slide back and forth along a second sliding groove. Simultaneously, the first bevel gear outside the connecting sleeve meshes with the second bevel gear outside the rotating shaft, driving the rotating shaft and scraper to produce precise angle adjustment and rotational scraping actions. Combined with the horizontal movement of the scraper driven by the moving mechanism, the scraper forms a coordinated operation of "horizontal movement + rotational scraping," thereby achieving efficient and thorough removal of foam from the surface of the flotation tank. This avoids foam residue caused by uneven scraping force or monotonous actions, while ensuring the continuity of wastewater treatment within the flotation tank, reducing the adverse effects of foam on subsequent effluent quality, and improving the overall operational stability and treatment effect of the wastewater treatment system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall back structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the scraper part of this utility model;

[0025] Figure 4 This is a schematic diagram of the moving mechanism structure of this utility model;

[0026] Figure 5 This utility model Figure 4 Enlarged view of section A in the middle;

[0027] Explanation of key symbols:

[0028] 1. Flotation tank body; 2. Moving mechanism; 3. Rotating mechanism; 11. Transmission pipe; 12. Outlet pipe; 13. Mounting block; 14; 15; 201. First sliding groove; 202. Servo motor; 203. Threaded rod; 204. First sliding block; 205. Connecting block; 206. Connecting plate; 301. Second sliding groove; 302. Drive motor; 303. Protruding shaft; 304. Second sliding block; 305. Connecting sleeve; 306. First bevel gear; 307. Rotating shaft; 308. Second bevel gear; 309. Scraper. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figures 1 - 5 This embodiment of a wastewater treatment system includes a foam scraping device for an air flotation tank, comprising an air flotation tank body 1, a transmission pipe 11 connected to the back of the air flotation tank body 1, an outlet pipe 12 connected to the front of the air flotation tank body 1, and an mounting block 13 connected to the top of the air flotation tank body 1. It also includes:

[0032] The moving mechanism 2 includes a threaded rod 203 rotatably connected inside the mounting block 13, and a first sliding block 204 is externally threaded to the threaded rod 203.

[0033] The rotating mechanism 3 includes a convex shaft 303 rotatably connected inside the mounting block 13, and a scraper 309 is provided on the inner side of the mounting block 13.

[0034] The mounting block 13 has a first sliding groove 201 inside, and a servo motor 202 is connected to the back of the mounting block 13. A threaded rod 203 is connected to the output end of the servo motor 202.

[0035] The first sliding block 204 is slidably connected inside the first sliding groove 201. A connecting block 205 is connected to the right side of the first sliding block 204, and a connecting plate 206 is connected to the top of the first sliding block 204.

[0036] First, the servo motor 202 in the moving mechanism 2 is started, which drives the threaded rod 203 connected to it to rotate inside the mounting block 13. The rotation of the threaded rod 203 is converted into the linear movement of the first sliding block 204 along the first sliding groove 201. As the first sliding block 204 moves, the connecting block 205 on its right side and the connecting plate 206 on the top will also move synchronously, and drive the second sliding block 304 to move, so that the connecting sleeve 305 inside it slides outside the convex shaft 303.

[0037] The mounting block 13 has a second sliding groove 301 inside, and a drive motor 302 is connected to the back of the mounting block 13. A convex shaft 303 is connected to the output end of the drive motor 302.

[0038] The second sliding groove 301 is internally slidably connected to a second sliding block 304, which is connected to the bottom of the connecting plate 206. The second sliding block 304 is internally rotatably connected to a connecting sleeve 305, which is slidably connected to the outside of the convex shaft 303.

[0039] The connecting sleeve 305 is externally connected to a first bevel gear 306, and the second sliding block 304 is internally rotatably connected to a rotating shaft 307. The end of the rotating shaft 307 away from the second sliding block 304 is rotatably connected to the inside of the connecting block 205.

[0040] A second bevel gear 308 is connected to the outside of the rotating shaft 307. The second bevel gear 308 meshes with the first bevel gear 306. The scraper 309 is connected to the outside of the rotating shaft 307.

[0041] When the drive motor 302 is started, the output end of the drive motor 302 will drive the cam shaft 303 to rotate inside the mounting block 13. The connecting sleeve 305, which is slidably connected to the outside of the cam shaft 303, will drive the externally fixed first bevel gear 306 and the externally fixed second bevel gear 308 of the rotating shaft 307 to mesh with each other as the cam shaft 303 rotates and its rotational connection with the second sliding block 304 rotates. The rotation of the first bevel gear 306 will drive the second bevel gear 308 to rotate synchronously, thereby causing the rotating shaft 307 connected to the second bevel gear 308 to rotate. The rotation of the rotating shaft 307 will directly drive the externally fixed scraper 309 to adjust its angle and rotate for scraping.

[0042] The implementation principle of the foam scraping device in the flotation tank of the wastewater treatment system in this embodiment is as follows: When the flotation tank body 1 needs to perform foam scraping operation, the servo motor 202 in the moving mechanism 2 is first started. The output end of the servo motor 202 will drive the threaded rod 203 connected to it to rotate inside the mounting block 13. Since the first sliding block 204 externally threaded to the threaded rod 203 is slidably connected to the first sliding groove 201 inside the mounting block 13, the rotation of the threaded rod 203 will be converted into the linear movement of the first sliding block 204 along the first sliding groove 201. As the moving block 204 moves, the connecting block 205 on its right side and the connecting plate 206 on top will also move synchronously, driving the second sliding block 304 to move, so that the connecting sleeve 305 inside it slides outside the convex shaft 303. The rotating shaft 307 rotatably connected inside the connecting block 205 will move together within the top range of the flotation tank body 1, thereby causing the scraper 309 fixed outside the rotating shaft 307 to move horizontally. This movement allows the scraper 309 to initially cover the surface area of ​​the flotation tank body 1, laying the foundation for subsequent precise foam removal.

[0043] While the moving mechanism 2 drives the scraper 309 to move horizontally, the rotating mechanism 3 is also started simultaneously to realize the rotation of the scraper 309. The drive motor 302 fixed on the back of the mounting block 13 is started. The output end of the drive motor 302 will drive the cam shaft 303 to rotate inside the mounting block 13. The connecting sleeve 305 slidably connected to the outside of the cam shaft 303 will, with the rotation of the cam shaft 303 and its own rotational connection with the second sliding block 304, drive the externally fixed first bevel gear 306 and the externally fixed second bevel gear 308 of the rotating shaft 307 to mesh with each other. The rotation of the first bevel gear 306 will drive the second bevel gear 308 to rotate synchronously, thereby causing the rotating shaft 307 connected to the second bevel gear 308 to rotate. The rotation of the rotating shaft 307 will directly drive the externally fixed scraper 309 to adjust its angle and rotate. At this time, the scraper 309 realizes horizontal movement under the drive of the moving mechanism 2 and rotational scraping under the drive of the rotating mechanism 3. The two work together to efficiently scrape the foam on the surface of the flotation tank body 1.

[0044] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A foam-scraping device for a flotation tank in a wastewater treatment system, comprising a flotation tank body (1), wherein a transmission pipe (11) is connected to the back of the flotation tank body (1), an outlet pipe (12) is connected to the front of the flotation tank body (1), and an mounting block (13) is connected to the top of the flotation tank body (1), characterized in that, Also includes: The moving mechanism (2) includes a threaded rod (203) rotatably connected inside the mounting block (13), and the threaded rod (203) is externally threaded to a first sliding block (204); The rotating mechanism (3) includes a convex shaft (303) rotatably connected inside the mounting block (13), and a scraper (309) is provided on the inner side of the mounting block (13).

2. The foam scraping device for the flotation tank of a wastewater treatment system as described in claim 1, characterized in that: The mounting block (13) has a first sliding groove (201) inside, and a servo motor (202) is connected to the back of the mounting block (13). The threaded rod (203) is connected to the output end of the servo motor (202).

3. The foam scraping device for a flotation tank in a wastewater treatment system as described in claim 2, characterized in that: The first sliding block (204) is slidably connected inside the first sliding groove (201), a connecting block (205) is connected to the right side of the first sliding block (204), and a connecting plate (206) is connected to the top of the first sliding block (204).

4. The foam scraping device for the flotation tank of a wastewater treatment system as described in claim 1, characterized in that: The mounting block (13) has a second sliding groove (301) inside, and a drive motor (302) is connected to the back of the mounting block (13). The convex shaft (303) is connected to the output end of the drive motor (302).

5. The foam scraping device for the flotation tank of a wastewater treatment system as described in claim 4, characterized in that: The second sliding groove (301) is slidably connected to a second sliding block (304), which is connected to the bottom of the connecting plate (206). The second sliding block (304) is rotatably connected to a connecting sleeve (305), which is slidably connected to the outside of the convex shaft (303).

6. The foam scraping device for a flotation tank in a wastewater treatment system as described in claim 5, characterized in that: The connecting sleeve (305) is externally connected to a first bevel gear (306), and the second sliding block (304) is internally rotatably connected to a rotating shaft (307). The end of the rotating shaft (307) away from the second sliding block (304) is rotatably connected to the inside of the connecting block (205).

7. The foam scraping device for a flotation tank in a wastewater treatment system as described in claim 6, characterized in that: A second bevel gear (308) is connected to the outside of the rotating shaft (307), and the second bevel gear (308) meshes with the first bevel gear (306). The scraper (309) is connected to the outside of the rotating shaft (307).

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