Integrated oil-containing wastewater treatment gas floatation tank structure

Abstract

This utility model discloses an integrated dissolved air flotation (DAF) tank structure for treating oily wastewater, relating to the field of wastewater treatment technology. The utility model includes a DAF tank with a baffle fixedly connected to its top and a pressure dissolved air tank on its left side. It also includes a sludge scraping mechanism located inside the DAF tank, comprising a conveyor seat fixedly connected to the top of the DAF tank, a conveyor belt inside the conveyor seat, and several scrapers on the outer surface of the conveyor belt; and a vibration mechanism located on the inner top of the baffle. By incorporating the vibration mechanism, specifically, the scrapers collide with and vibrate against a collision block during movement, causing the sludge adhering to the scrapers to be shaken off, significantly reducing residue. The vibration also pushes the collision block, allowing the scrapers to move away smoothly. This repetitive motion achieves a self-cleaning effect, eliminating the need for frequent cleaning by personnel.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to the structure of an integrated air flotation tank for treating oily wastewater. Background Technology

[0002] An integrated dissolved air flotation tank is a high-efficiency oil-water treatment device that integrates functions such as dissolved air, reaction, separation, and sludge scraping into a compact unit. It is suitable for small and medium-sized oily wastewater treatment scenarios (such as oil fields, refineries, and machining wastewater).

[0003] Traditional dissolved air flotation (DAF) tanks typically have a sludge scraping mechanism at the top. A conveyor belt drives a scraper to remove the floating sludge from the DAF tank. However, the sludge usually adheres to the scraper, and over time, a large amount of sludge accumulates on the scraper. This not only increases the energy consumption of the conveyor belt but also requires staff to clean the scraper regularly, which takes a lot of time and affects wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to provide an integrated flotation tank structure for treating oily wastewater. By setting a vibration mechanism, specifically, the scraper contacts and collides with the collision block during its movement, generating vibration. The scum attached to the scraper is vibrated off, significantly reducing residue, and the collision block is pushed, allowing the scraper to move away smoothly. This process is repeated to achieve a self-cleaning effect for the scraper, eliminating the need for frequent cleaning by staff. This solves the problem that scum usually adheres to the scraper, which over time accumulates a large amount of scum, increasing energy consumption during conveyor belt operation and requiring regular cleaning by staff.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an integrated dissolved air flotation (DAF) tank structure for treating oily wastewater, comprising a DAF tank, a baffle fixedly connected to the top of the DAF tank, a pressure dissolved air tank disposed on the left side of the DAF tank, and further comprising:

[0007] A sludge scraping mechanism is installed inside the dissolved air flotation (DAF) tank. The sludge scraping mechanism includes a conveyor seat fixedly connected to the top of the DAF tank, a conveyor belt inside the conveyor seat, and a plurality of scrapers on the outer surface of the conveyor belt; and

[0008] A vibration mechanism is provided on the inner top of the baffle. The vibration mechanism includes a fixed rod, and a support block is fixedly connected to both the front and back of the fixed rod. The top of the support block is fixedly connected to the top of the inner wall of the baffle. Several collision blocks are rotatably connected to the outside of the fixed rod. A convex plate is fixedly connected to the left side of the collision block. An arc-shaped telescopic rod and a spring are fixedly connected to the convex plate.

[0009] The bottom of the collision block is arc-shaped, the conveyor belt is used to drive several scrapers, and the support block is used to support the fixed rod.

[0010] Furthermore, the top of the arc-shaped telescopic rod and the top of the spring are both fixedly connected to the top of the inner wall of the baffle, and the convex plate and the collision block form a V-shape;

[0011] When the collision block is pushed, the arc-shaped telescopic rod will retract and the spring will be compressed. Limiting rings are provided on both the front and back of the collision block. The inner ring of the limiting ring is fixedly connected to the outer surface of the fixing rod. The limiting ring is used to limit the collision block.

[0012] Furthermore, the conveyor belt is connected to drive rollers on both the left and right sides, and a motor is fixedly connected to the left side of the front of the conveyor seat. The output end of the motor is fixedly connected to the drive roller on the left side through a flange.

[0013] Furthermore, a number of fixing protrusions are fixedly connected to the outer surface of the conveyor belt, the top of the fixing protrusions is provided with positioning grooves, and the top end of the fixing protrusions is provided with threaded holes.

[0014] Furthermore, the scraper is L-shaped, with an insertion hole at the bottom. A positioning protrusion is fixedly connected to the center of the bottom of the scraper, and the positioning protrusion is inserted into the fixing protrusion through a positioning groove. The positioning protrusion is used to position the scraper during installation. The scraper is fixedly connected to the fixing protrusion by screws. The scraper is inserted into the positioning groove on the fixing protrusion through the positioning protrusion at the bottom, thereby positioning the scraper and facilitating subsequent screw installation.

[0015] Furthermore, a bracket is fixedly connected to the outside of the pressure dissolved air tank, and the right side of the bracket is fixedly connected to the left side of the flotation tank. A baffle is fixedly connected to the top left side of the flotation tank, and the baffle is inclined. An opening is provided on the right side of the flotation tank, and a guide plate is fixedly connected to the opening on the right side of the flotation tank. A drain pipe is installed on the right side of the flotation tank, and a valve is installed on the drain pipe. The baffle shell can play a blocking role, reducing the overflow of scum, and the baffle also plays a blocking role, further preventing the overflow of scum.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a vibration mechanism. Specifically, the scraper contacts and collides with the collision block during its movement, generating vibration. This vibration causes the floating scum attached to the scraper to be dislodged, significantly reducing residue. It also pushes the collision block, allowing the scraper to move away smoothly. This process is repeated to achieve a self-cleaning effect, eliminating the need for frequent cleaning by staff.

[0018] 2. This utility model features a fixed protrusion. Specifically, the scraper is inserted into the positioning groove on the fixed protrusion through the positioning protrusion at the bottom and fixed with screws. Therefore, in case of subsequent damage or maintenance, the screws can be removed and the scraper can be pulled to quickly disassemble it, which is convenient for subsequent maintenance. At the same time, one scraper can be disassembled and replaced individually, reducing costs.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the conveyor seat of this utility model;

[0023] Figure 3 This is a front view cross-sectional structural diagram of the baffle shell of this utility model;

[0024] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0025] Figure 5 This is a schematic diagram of the overall structure of the fixing protrusion of this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the scraper of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Flotation tank; 11. Baffle; 12. Pressure dissolved air tank; 121. Support; 13. Guide plate; 14. Drain pipe; 15. Baffle; 2. Sludge scraping mechanism; 21. Conveyor seat; 211. Motor; 212. Drive roller; 22. Conveyor belt; 221. Scraper; 222. Positioning protrusion; 223. Insertion hole; 224. Fixing protrusion; 225. Positioning groove; 226. Threaded hole; 3. Vibration mechanism; 31. Fixing rod; 311. Limiting ring; 32. Support block; 33. Collision block; 331. Protruding plate; 332. Arc-shaped telescopic rod; 333. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] Please see Figures 1-6 As shown, this utility model is an integrated flotation tank structure for treating oily wastewater, including a flotation tank 1, a baffle 11 fixedly connected to the top of the flotation tank 1, a pressure dissolved air tank 12 arranged on the left side of the flotation tank 1, and also including:

[0031] Sludge scraping mechanism 2 is installed inside the flotation tank 1. The sludge scraping mechanism 2 includes a conveyor seat 21 fixedly connected to the top of the flotation tank 1, a conveyor belt 22 inside the conveyor seat 21, and several scrapers 221 on the outer surface of the conveyor belt 22; and

[0032] Vibration mechanism 3 is located on the inner top of the baffle 11. Vibration mechanism 3 includes a fixed rod 31, with support blocks 32 fixedly connected to both the front and back of the fixed rod 31. The top of the support blocks 32 is fixedly connected to the top of the inner wall of the baffle 11. Several collision blocks 33 are rotatably connected to the outside of the fixed rod 31. A protruding plate 331 is fixedly connected to the left side of the collision block 33. An arc-shaped telescopic rod 332 and a spring 333 are fixedly connected to the protruding plate 331. During the movement, the scraper 221 will contact and collide with the collision blocks 33, generating vibration. The scum attached to the scraper 221 will be vibrated off, greatly reducing residue, and will push the collision blocks 33, allowing the scraper 221 to leave smoothly. This repetition can achieve the self-cleaning effect of the scraper 221, eliminating the need for frequent cleaning by staff. The bottom of the collision block 33 is arc-shaped. The conveyor belt 22 is used to drive several scrapers 221, and the support block 32 is used to support the fixed rod 31.

[0033] The top of the arc-shaped telescopic rod 332 and the top of the spring 333 are both fixedly connected to the top of the inner wall of the baffle 11. The convex plate 331 and the collision block 33 form a V-shape. When the collision block 33 is pushed, the arc-shaped telescopic rod 332 will retract and the spring 333 will be squeezed. Limiting rings 311 are provided on the front and back of the collision block 33. The inner ring of the limiting ring 311 is fixedly connected to the outer surface of the fixed rod 31. The limiting ring 311 is used to limit the collision block 33.

[0034] The conveyor belt 22 has drive rollers 212 connected to both the left and right sides inside. The conveyor seat 21 has a motor 211 fixedly connected to the left side of the front. The output end of the motor 211 is fixedly connected to the drive roller 212 on the left side through a flange.

[0035] Several fixed protrusions 224 are fixedly connected to the outer surface of the conveyor belt 22. The top of the fixed protrusion 224 is provided with a positioning groove 225 and the top end of the fixed protrusion 224 is provided with a threaded hole 226.

[0036] The scraper 221 is L-shaped, with an insertion hole 223 at the bottom. A positioning protrusion 222 is fixedly connected to the center of the bottom of the scraper 221. The positioning protrusion 222 is inserted into the fixing protrusion 224 through the positioning groove 225. The positioning protrusion 222 is used to position the scraper 221 during installation. The scraper 221 is fixedly connected to the fixing protrusion 224 with screws. The scraper 221 is inserted into the positioning groove 225 on the fixing protrusion 224 through the positioning protrusion 222 at the bottom and fixed with screws. Therefore, in case of subsequent damage or maintenance, the screws can be removed and the scraper 221 can be pulled to quickly disassemble it, which is convenient for subsequent maintenance. At the same time, one scraper 221 can be disassembled and replaced individually, reducing costs.

[0037] A bracket 121 is fixedly connected to the outside of the pressure dissolved air tank 12. The right side of the bracket 121 is fixedly connected to the left side of the flotation tank 1. A baffle 15 is fixedly connected to the top left side of the flotation tank 1. The baffle 15 is inclined. An opening is opened on the right side of the flotation tank 1. A guide plate 13 is fixedly connected to the opening on the right side of the flotation tank 1. A drain pipe 14 is installed on the right side of the flotation tank 1. A valve is installed on the drain pipe 14.

[0038] One specific application of this embodiment is:

[0039] In operation, starting the motor 211 drives the left-side transmission roller 212 to rotate counterclockwise. The transmission roller 212 then drives the conveyor belt 22. At this time, the scraper 221 will also be driven along with the conveyor belt 22. When the scraper 221 moves to the bottom of the conveyor belt 22, it pushes the scum on the top of the flotation tank 1 and pushes it to the right-side opening of the flotation tank 1, allowing the scum to be discharged through the guide plate 13. During this process, the scraper 221 will contact and collide with the collision block 33, generating vibration. The scum attached to the scraper 221 will be vibrated off, greatly reducing residue. At this time, the scraper 221 will push the collision block 33. The collision block 33 rotates on the fixed rod 31, while the arc-shaped telescopic rod 332 retracts and squeezes the spring 333, so that the scraper 221 can smoothly leave the collision block 33. Then the collision block 33 returns to its original position by elastic force. This process can achieve the self-cleaning effect of the scraper 221, eliminating the need for frequent cleaning by staff. During the scraping process, the baffle 11 can act as a shield to reduce the overflow of scum, and the baffle 15 also acts as a shield to further prevent the overflow of scum. By regularly maintaining and replacing the spring 333, the rebound effect of the collision block 33 can be maintained, avoiding elastic fatigue.

[0040] When scraper 221 is damaged or requires maintenance, the screws on scraper 221 are removed to release the scraper 221 from its fixation. Then, scraper 221 can be pulled to remove it. This method allows scraper 221 to be replaced and maintained separately, reducing costs. When scraper 221 needs to be installed, scraper 221 is inserted into the positioning groove 225 on the fixing protrusion 224 through the positioning protrusion 222 at the bottom to position scraper 221. Then, the screws on scraper 221 are installed so that the screws are threaded into the threaded hole 226 on the fixing protrusion 224 to install and fix scraper 221.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated flotation tank structure for treating oily wastewater, comprising a flotation tank (1), wherein a baffle (11) is fixedly connected to the top of the flotation tank (1), and a pressure dissolved air tank (12) is provided on the left side of the flotation tank (1), characterized in that, Also includes: A sludge scraping mechanism (2) is installed inside the flotation tank (1). The sludge scraping mechanism (2) includes a conveyor seat (21) fixedly connected to the top of the flotation tank (1). A conveyor belt (22) is installed inside the conveyor seat (21), and a plurality of scrapers (221) are installed on the outer surface of the conveyor belt (22). Vibration mechanism (3) is set on the inner top of the baffle (11). The vibration mechanism (3) includes a fixed rod (31). The fixed rod (31) is fixedly connected to a support block (32) on both the front and back sides. The top of the support block (32) is fixedly connected to the top of the inner wall of the baffle (11). Several collision blocks (33) are rotatably connected to the outside of the fixed rod (31). A protruding plate (331) is fixedly connected to the left side of the collision block (33). An arc-shaped telescopic rod (332) and a spring (333) are fixedly connected to the protruding plate (331). The bottom of the collision block (33) is arc-shaped, the conveyor belt (22) is used to drive several scrapers (221), and the support block (32) is used to support the fixing rod (31).

2. The integrated flotation tank structure for treating oily wastewater according to claim 1, characterized in that, The top of the arc-shaped telescopic rod (332) and the top of the spring (333) are both fixedly connected to the top of the inner wall of the baffle (11), and the convex plate (331) and the collision block (33) form a V-shape; When the collision block (33) is pushed, the arc-shaped telescopic rod (332) will retract and the spring (333) will be squeezed.

3. The integrated air flotation tank structure for treating oily wastewater according to claim 2, characterized in that, The collision block (33) is provided with a limiting ring (311) on both the front and back sides. The inner ring of the limiting ring (311) is fixedly connected to the outer surface of the fixing rod (31). The limiting ring (311) is used to limit the collision block (33).

4. The integrated flotation tank structure for treating oily wastewater according to claim 3, characterized in that, The conveyor belt (22) has transmission rollers (212) connected to both the left and right sides inside. The conveyor seat (21) has a motor (211) fixedly connected to the left side of the front. The output end of the motor (211) is fixedly connected to the transmission roller (212) on the left side through a flange.

5. The integrated air flotation tank structure for treating oily wastewater according to claim 4, characterized in that, The outer surface of the conveyor belt (22) is fixedly connected with a number of fixed protrusions (224), the top of the fixed protrusions (224) is provided with a positioning groove (225), and the top end of the fixed protrusions (224) is provided with a threaded hole (226).

6. The integrated air flotation tank structure for treating oily wastewater according to claim 5, characterized in that, The scraper (221) is L-shaped, and the bottom of the scraper (221) has an insertion hole (223). A positioning protrusion (222) is fixedly connected to the center of the bottom of the scraper (221). The positioning protrusion (222) is inserted into the fixing protrusion (224) through the positioning groove (225). The positioning protrusion (222) is used to position the scraper (221) during installation. The scraper (221) is fixedly connected to the fixing protrusion (224) by screws.

7. The integrated flotation tank structure for treating oily wastewater according to claim 2, characterized in that, A bracket (121) is fixedly connected to the outside of the pressure dissolved air tank (12). The right side of the bracket (121) is fixedly connected to the left side of the flotation tank (1). A baffle (15) is fixedly connected to the top left side of the flotation tank (1). The baffle (15) is inclined. An opening is provided on the right side of the flotation tank (1). A guide plate (13) is fixedly connected to the opening on the right side of the flotation tank (1). A drain pipe (14) is installed on the right side of the flotation tank (1). A valve is installed on the drain pipe (14).

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