Mud scraper with quickly replaceable blades

Abstract

The utility model provides a can replace the scraper of quick of mud scraper, including including pool body and support board, support board is located pool body top, and the bottom center position of pool body is equipped with the blowdown hopper, be equipped with the drive motor on the support board, drive motor output is equipped with the pivot, and the pivot runs through support board and extends to the inside of pool body, the symmetry of pivot wall is equipped with the extension rod, and the extension rod bottom is welded with the connecting rod, and the both sides of connecting rod are equipped with first slide rail and second slide rail, connecting block, the top of connecting block is equipped with the installation sliding block and the location sliding block, the installation sliding block is compatible with first slide rail and is connected slidingly, and the location sliding block is compatible with second slide rail and is connected slidingly, and connecting block is uniformly provided with a plurality of along first slide rail through the installation sliding block, and the bottom of connecting block is articulated with the scraper, and the scraper is close to the bottom wall in the inside of pool body, can quickly dismount or install the scraper when maintaining and installing, improve maintenance efficiency, reduce downtime.

Description

Technical Field

[0001] This utility model relates to the field of sludge scrapers, and more particularly to a sludge scraper with quick-replacement scrapers. Background Technology

[0002] Sludge thickening tanks play a vital role in wastewater treatment. The main purpose of thickening is to reduce the volume of sludge, thereby lowering the cost of subsequent treatment. Traditional sludge thickening tanks use mechanical or gravity methods to increase the residence time of the sludge in the tank, gradually separating the internal water and achieving the purpose of thickening.

[0003] A sludge scraping mechanism for a sludge scraper is disclosed in Chinese patent application number CN202021947831.7. A motor frame is mounted above the working bridge, and a motor is mounted above the motor frame. A rotating shaft is mounted on the output shaft of the motor. A clamping collar is mounted on the outer wall of the rotating shaft, and a lifting mechanism is mounted above the clamping collar. Sludge scraping mechanisms are mounted on both sides of the rotating shaft and are fixedly connected to the rotating shaft. Two lifting lugs are mounted above each sludge scraping mechanism, and both lugs are fixedly connected to the clamping collar via ropes. Concentrating grids are installed inside the sludge scraping mechanism. An underwater bearing assembly is mounted at one end of the rotating shaft, and a sludge discharge pipe is mounted on one side of the underwater bearing assembly.

[0004] However, the above-mentioned patent has certain defects in use. Because the scraper is in contact with sludge for a long time, it is prone to wear. When the scraper needs to be replaced during the maintenance or installation of the sludge scraper, multiple fasteners need to be disassembled, which takes a long time to disassemble and reassemble, affecting the operating efficiency of the equipment.

[0005] To address this issue, a sludge scraper with quickly replaceable scrapers is proposed. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a sludge scraper with quick-replacement scrapers.

[0007] This utility model is achieved using the following technical solution: A sludge scraper with quick-replacement scrapers includes a tank body and a support plate. The support plate is located at the top of the tank body. A sludge discharge hopper is provided at the center of the bottom of the tank body. A drive motor is provided on the support plate. A rotating shaft is provided at the output end of the drive motor. The rotating shaft extends through the support plate into the tank body. Extension rods are symmetrically provided on the peripheral wall of the rotating shaft. A connecting rod is welded to the bottom of the extension rod. A first slide rail and a second slide rail are provided on both sides of the connecting rod. The connecting block has an installation slider and a positioning slider on its top. The installation slider is adapted to and slidably connected to the first slide rail, and the positioning slider is adapted to and slidably connected to the second slide rail. Multiple connecting blocks are evenly arranged along the first slide rail via the installation slider. A scraper is hinged to the bottom of the connecting block and is in close contact with the bottom wall of the pool body.

[0008] As a preferred embodiment of this utility model, the rotating shaft is provided with multiple rotating arms on its peripheral wall, and the rotating arms are provided with side sweeping plates at their ends, which are in close contact with the inner side wall of the tank body; the end of the rotating shaft extends into the sewage hopper, and the rotating shaft is provided with multiple stirring rods on its peripheral wall, the stirring rods being located at the lower part of the rotating shaft and inside the sewage hopper, the extension rods being located at the middle part of the rotating shaft, and the rotating arms being located at the upper part of the rotating shaft.

[0009] As a preferred embodiment of this utility model, the first slide rail has a plurality of positioning holes evenly distributed on it, the mounting slider is provided with a pressing ball that cooperates with the positioning hole, and a spring is provided between the pressing ball and the mounting slider. The second slide rail has a plurality of insertion holes evenly distributed thereon, and the positioning slider is provided with a pin that is opposite to the insertion hole.

[0010] As a preferred embodiment of this utility model, the bottom of the support plate is provided with a sludge inlet hopper, the sludge inlet hopper is provided with a sludge inlet main pipe, the sludge inlet main pipe extends through the tank body to the outside, and the sludge discharge hopper is provided with a sludge discharge main pipe.

[0011] As a preferred embodiment of this utility model, an overflow weir is provided at the top of the inner side of the pool body. The overflow weir is arranged around the inner wall of the pool body to form a water collection trough. A main drain pipe is provided in the water collection trough. The main drain pipe passes through the side wall of the pool body and extends to the outside.

[0012] As a preferred embodiment of this utility model, the scraper has a protective layer at its bottom.

[0013] Compared with existing technologies, the advantages of this utility model are: 1. By setting a first slide rail and a second slide rail on both sides of the connecting rod welded to the bottom of the extension rod, when installing the scraper, the mounting slider on the top of the connecting block is embedded in the first slide rail, and the positioning slider is embedded in the second slide rail. The initial fixation is achieved by the cooperation of the pressing ball and the positioning hole, and then the locking is completed by inserting the pin into the socket. The scraper can be quickly disassembled or installed during maintenance and installation, improving maintenance efficiency and reducing downtime.

[0014] 2. By setting the side sweeping plate to fit against the inner side wall of the tank, sludge or impurities attached to the side wall can be removed when the shaft rotates, preventing accumulation and affecting the treatment effect.

[0015] 3. The stirring rod agitates the sediment in the sludge discharge hopper to prevent caking and ensure that the sludge is discharged smoothly through the main discharge pipe. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the pool body of this utility model; Figure 2 This is a cross-sectional view of the internal structure of the pool body of this utility model; Figure 3 This is a structural diagram of the rotating shaft of this utility model; Figure 4 This is a first-view structural diagram of the connecting rod of this utility model; Figure 5 This is a second-view structural diagram of the connecting rod of this utility model; Figure 6 This is a partial sectional view of the scraper of this utility model. In the diagram: 1. Pool body; 11. Support plate; 2. Drive motor; 21. Rotating shaft; 22. Rotating arm; 221. Side sweeping plate; 3. Extension rod; 31. Connecting rod; 311. First slide rail; 312. Second slide rail; 32. Insertion hole; 33. Pressing ball; 331. Spring; 34. Positioning hole; 4. Scraper; 41. Connecting block; 411. Mounting slider; 412. Positioning slider; 42. Pin; 43. Protective layer; 5. Stirring rod; 6. Sludge inlet hopper; 61. Sludge inlet main pipe; 7. Sludge outlet hopper; 71. Sludge outlet main pipe; 8. Overflow weir; 81. Water collection trough; 82. Drainage main pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Example: Please see Figures 1-5 A sludge scraper with quick-replacement scrapers includes a tank body 1 and a support plate 11. The support plate 11 is located at the top of the tank body 1. A sludge discharge hopper 7 is provided at the center of the bottom of the tank body 1. A drive motor 2 is provided on the support plate 11. A rotating shaft 21 is provided at the output end of the drive motor 2. The rotating shaft 21 extends through the support plate 11 into the tank body 1. Extension rods 3 are symmetrically provided on the circumferential wall of the rotating shaft 21. A connecting rod 31 is welded to the bottom of the extension rod. A first slide rail 311 and a second slide rail 311 are provided on both sides of the connecting rod 31.

[0019] In this embodiment, specific reference is made. Figure 1 as well as Figure 2The main body of the tank 1 is the main structure of the thickening tank. A support plate 11 is set on the top of the tank body 1 along the center. The sludge hopper 7 is connected to the bottom center of the tank body 1. The sludge inside the tank body 1 enters the sludge collection hopper. A drive motor 2 is installed at the top of the center of the support plate 11. When the drive motor 2 starts, it drives the rotating shaft 21 to rotate, which in turn drives the extension rod 3 and the connecting rod 31 to rotate synchronously. The connecting rod 31 is specifically welded to the bottom of the extension rod 3. The connecting rod 31 is slightly inclined to ensure that the scraper 4 installed later can run close to the bottom of the tank and effectively scrape off the deposited sludge.

[0020] The connecting block 41 has an installation slider 411 and a positioning slider 412 on its top. The installation slider 411 is adapted to and slidably connected to the first slide rail 311, and the positioning slider 412 is adapted to and slidably connected to the second slide rail 312. Multiple connecting blocks 41 are evenly arranged along the first slide rail 311 via the installation slider 411. A scraper 4 is hinged to the bottom of the connecting block 41. The scraper 4 is in close contact with the inner bottom wall of the tank body 1. The inner bottom of the tank body 1 is slightly inclined to facilitate the sludge to converge towards the central sludge discharge hopper 7.

[0021] In this embodiment, the connecting block 41 is installed on the fixed scraper 4. The scraper 4 is hinged or fixed to the bottom of the connecting block 41. A positioning slider 412 and an installation slider 411 are provided on the top of the connecting block 41, which slide in cooperation with the second slide rail 312 and the first slide rail 311, respectively. When installation is required, the connecting block 41 is pushed into the corresponding slide rail, the installation slider 411 is embedded in the first slide rail 311, and the positioning slider 412 is embedded in the second slide rail 312, so as to realize the stable sliding of the connecting block 41 along the direction of the first slide rail 311 and the second slide rail 312, which facilitates installation and disassembly.

[0022] Specifically, the rotating shaft 21 has multiple rotating arms 22 on its peripheral wall, and the rotating arms 22 have side sweeping plates 221 at their ends, which are in close contact with the inner side wall of the tank body 1; the end of the rotating shaft 21 extends into the sewage hopper 7, and the rotating shaft 21 has multiple stirring rods 5 on its peripheral wall, which are located at the lower part of the rotating shaft 21 and inside the sewage hopper 7, the extension rod 3 is located in the middle of the rotating shaft 21, and the rotating arms 22 are located at the upper part of the rotating shaft 21.

[0023] In this embodiment, specific reference is made. Figure 3On the rotating shaft 21, the extension rod 3 is located in the middle of the outer peripheral wall of the rotating shaft 21. A rotating arm 22 is provided on the upper outer peripheral wall of the rotating shaft 21, and a stirring rod 5 is provided on the lower part of the outer peripheral wall of the rotating shaft 21. The end of the rotating shaft 21 extends into the inside of the sludge discharge hopper 7, and the stirring rod 5 is located inside the sludge discharge hopper 7. When rotating synchronously with the rotating shaft 21, it disturbs the concentrated sludge to prevent caking and blockage. A side sweeping plate 221 is installed at the end of the rotating arm 22. The side sweeping plate 221 is close to the inner side wall of the tank. When rotating with the rotating shaft 21, it removes the sludge attached to the side wall to avoid siltation. The sweeping plate gradually scrapes off the sludge on the side wall and guides it to the scraping area of ​​the scraper 4. As the rotating shaft 21 rotates, the extension rod 3 drives the connecting rod 31 and the scraper 4 to make a circular motion along the bottom of the tank. The scraper 4 is close to the bottom surface of the tank under the traction of the inclined connecting rod 31, and continuously pushes the deposited sludge towards the central sludge discharge hopper 7.

[0024] Specifically, the first slide rail 311 has a plurality of positioning holes 34 evenly distributed on it, the mounting slider 411 is provided with a pressing ball 33 that cooperates with the positioning hole 34, and a spring 331 is provided between the pressing ball 33 and the mounting slider 411. The second slide rail 312 has a plurality of insertion holes 32 evenly distributed on it, and the positioning slider 412 is provided with a pin 42 corresponding to the insertion hole 32.

[0025] In this embodiment, specific reference is made. Figure 6 Multiple positioning holes 34 are formed along the length of the first slide rail 311. The pressing ball 33 on the mounting slider 411 is engaged in the corresponding positioning hole 34 under the action of the spring 331, so as to achieve precise fixing and quick assembly and disassembly of the connecting block 41. During installation, when the mounting slider 411 is embedded in the first slide rail 311, the pressing ball 33 is compressed by the force of the spring 331. The mounting slider 411 slides along the first slide rail 311 to the designated position and then springs into the positioning hole 34 to complete the initial positioning. During disassembly, simply press the ball 33 to make it sink out of the positioning hole 34 and slide it out. Multiple insertion holes 32 are evenly distributed on the second slide rail 312. After the pressing ball 33 is engaged in the corresponding positioning hole 34, the positioning slider 412 moves to the corresponding insertion hole 32 and inserts the pin 42. The pin 42 is a bolt, which can cooperate with the positioning slider 412 to achieve secondary positioning and enhance the stability of operation.

[0026] Specifically, the bottom of the support plate 11 is provided with a sludge inlet hopper 6, the sludge inlet hopper 6 is provided with a sludge inlet main pipe 61, the sludge inlet main pipe 61 extends through the pool body 1 to the outside, and the sludge discharge hopper 7 is provided with a sludge discharge main pipe 71.

[0027] In this embodiment, the function of the main sewage inlet pipe 61 is to evenly introduce the sewage to be treated into the sewage inlet hopper 6, and then distribute it into the tank for sedimentation treatment. Subsequently, the drive motor 2 is started to drive the side sweeping plate 221, stirring rod 5 and scraper 4 on the rotating shaft 21 to rotate synchronously for cleaning. Under the scraping of the scraper 4, the deposited sludge is gradually pushed to the sewage discharge hopper 7 in the center of the tank. With the continuous disturbance of the concentrated sludge by the stirring rod 5, the dirt is discharged to the outside through the sewage discharge main pipe 71 installed on the sewage discharge hopper 7.

[0028] Specifically, an overflow weir 8 is provided at the top of the interior of the pool body 1. The overflow weir 8 is arranged around the inner wall of the pool body 1 to form a water collection trough 81. A drainage main pipe 82 is provided in the water collection trough 81. The drainage main pipe 82 passes through the side wall of the pool body 1 and extends to the outside.

[0029] In this embodiment, an overflow weir 8 is provided on the inner wall of the top of the pool body 1. After the dirt in the sewage settles, the dirt settles downwards, while the clean water is evenly collected into the water collection tank 81 through the overflow weir 8. The clean water flows into the water collection tank 81 through the water passage hole of the overflow weir 8 and is discharged through the outlet pipe, thus realizing the separation of clean and dirty water.

[0030] Specifically, the scraper 4 has a protective layer 43 at its bottom.

[0031] In this embodiment, the scraper 4 is specifically an arc-shaped stainless steel plate. The outer wall and bottom of the scraper 4 are provided with a protective layer 43. When the scraper 4 is in operation, it will directly contact the inner wall of the pool body 1. The protective layer 43 is made of silicone material, which effectively prevents wear caused by hard friction between the scraper 4 and the pool wall and extends the service life of the equipment.

[0032] The principle of this utility model is as follows: the sewage to be treated is evenly introduced into the sewage inlet hopper 6 from the sewage inlet main pipe 61. After being dispersed by the sewage inlet hopper 6, it enters the interior of the tank body 1. When the sewage is continuously injected and reaches the set water level of the tank body, the drive motor 2 is started and drives the rotating shaft 21 to rotate. When the rotating shaft 21 rotates, it will drive the rotating arm 22, the extension rod 3, and the stirring rod 5 located in the sewage discharge hopper 7 to rotate. When the rotating arm 22 rotates, it drives the side sweeping plate 221 to make a circular motion along the inner wall of the pool. The side sweeping plate 221 is in close contact with the inner side wall of the pool. When it rotates with the rotating shaft 21, it removes the sludge attached to the side wall to avoid sludge accumulation. The sweeping plate gradually scrapes off the sludge on the side wall and guides it to the scraping area of ​​the scraper 4. As the extension rod 3 rotates, it drives the scraper 4 to continuously scrape away the sludge deposited at the bottom of the pool and push it toward the sludge discharge hopper 7 in the center of the pool. At the same time, the stirring rod 5 agitates the concentrated sludge during rotation to prevent caking and ensure that the sludge is discharged smoothly through the main discharge pipe 71.

[0033] The installation process of scraper 4 is as follows: push the connecting block 41 into the corresponding slide rail, embed the mounting slider 411 into the first slide rail 311, embed the positioning slider 412 into the second slide rail 312, when the mounting slider 411 is embedded into the first slide rail 311 and slides along the first slide rail 311, press the ball 33 to compress the spring 331, the mounting slider 411 slides along the first slide rail 311 to the designated position and then pops into the positioning hole 34 to complete the initial positioning. After the ball 33 is pressed into the corresponding positioning hole 34, the positioning slider 412 moves to the corresponding insertion hole 32, insert the pin 42, and the installation is completed.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A sludge scraper with quick-replacement scrapers, comprising a tank body (1) and a support plate (11), the support plate (11) being located at the top of the tank body (1), a sludge discharge hopper (7) being provided at the center of the bottom of the tank body (1), and a drive motor (2) being provided on the support plate (11), characterized in that: The output end of the drive motor (2) is provided with a rotating shaft (21), which extends through the support plate (11) into the pool body (1). The rotating shaft (21) is symmetrically provided with extension rods (3) on the periphery of the rotating shaft (21), and a connecting rod (31) is welded to the bottom of the extension rod. The connecting rod (31) is provided with a first slide rail (311) and a second slide rail (312) on both sides. A connecting block (41) is provided with an installation slider (411) and a positioning slider (412) on its top. The installation slider (411) is adapted to and slidably connected to the first slide rail (311), and the positioning slider (412) is adapted to and slidably connected to the second slide rail (312). Multiple connecting blocks (41) are evenly arranged along the first slide rail (311) through the installation slider (411). A scraper (4) is hinged to the bottom of the connecting block (41), and the scraper (4) is in close contact with the inner bottom wall of the pool body (1).

2. The sludge scraper with quick-replacement scrapers according to claim 1, characterized in that: The rotating shaft (21) has multiple rotating arms (22) on its peripheral wall. The rotating arm (22) has a side sweeping plate (221) at its end, and the side sweeping plate (221) is in close contact with the inner side wall of the tank body (1). The end of the rotating shaft (21) extends into the sewage hopper (7). The rotating shaft (21) has multiple stirring rods (5) on its peripheral wall. The stirring rods (5) are located at the lower part of the rotating shaft (21) and inside the sewage hopper (7). The extension rod (3) is located in the middle part of the rotating shaft (21), and the rotating arm (22) is located at the upper part of the rotating shaft (21).

3. The sludge scraper with quick-replacement scrapers according to claim 1, characterized in that: The first slide rail (311) has a plurality of positioning holes (34) evenly distributed on it. The mounting slider (411) is provided with a pressing ball (33) that cooperates with the positioning hole (34), and a spring (331) is provided between the pressing ball (33) and the mounting slider (411). The second slide rail (312) has a plurality of insertion holes (32) evenly distributed on it, and the positioning slider (412) is provided with a pin (42) opposite to the insertion hole (32).

4. The sludge scraper with quick-replacement scrapers according to claim 2, characterized in that: The bottom of the support plate (11) is provided with a sludge inlet hopper (6), and a sludge inlet main pipe (61) is provided on the sludge inlet hopper (6). The sludge inlet main pipe (61) extends through the pool body (1) to the outside. The sludge outlet hopper (7) is provided with a sludge outlet main pipe (71).

5. The sludge scraper with quick-replacement scrapers according to claim 1, characterized in that: An overflow weir (8) is provided at the top of the interior of the pool body (1). The overflow weir (8) is arranged around the inner wall of the pool body (1) to form a water collection trough (81). A main drain pipe (82) is provided in the water collection trough (81). The main drain pipe (82) passes through the side wall of the pool body (1) and extends to the outside.

6. The sludge scraper with quick-replacement scrapers according to claim 1, characterized in that: The scraper (4) has a protective layer (43) at its bottom.

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