Sludge conveying system

Abstract

The utility model belongs to the technical field of sludge treatment, and particularly discloses a sludge conveying system which comprises a feeding hopper, a sludge conveying pump and a conveying motor driving the sludge conveying pump to work, the bottom of the feeding hopper is communicated with the sludge conveying pump, the sludge conveying system further comprises an impacting unit and a driving unit, the outer side of the feeding hopper is connected with a supporting block, and the supporting block is connected with the driving unit. The impact unit is in horizontal sliding fit with the supporting block, an elastic piece is connected between the impact unit and the feeding hopper, and the driving unit can drive the impact unit to intermittently impact the feeding hopper. Sludge adhered to the side wall of the feeding hopper can be cleaned, and the sludge is prevented from affecting discharging at the bottom of the feeding hopper.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to a sludge conveying system. Background Technology

[0002] Currently, after the sludge is filtered and dewatered in the sludge dewatering machine, it is transported to the feed hopper of the sludge conveying system. The dewatered sludge is then transported to a designated location by the sludge conveying pump and transported to a sludge recycling and treatment facility by a sludge conveying truck.

[0003] However, after dewatering, the sludge enters the feed hopper and then flows from the bottom outlet of the feed hopper into the sludge conveying pump for transportation. Because the sludge still has moisture, it tends to adhere to the inner wall of the feed hopper as it falls into the hopper. Over time, this can obstruct the bottom outlet of the feed hopper, affecting the feed rate into the sludge conveying pump. It can also cause the sludge to accumulate in the feed hopper, making it difficult to discharge quickly and thus affecting the hopper's loading capacity. Utility Model Content

[0004] This utility model provides a sludge conveying system, which aims to clean the sludge adhering to the side wall of the feed hopper and prevent the sludge from affecting the discharge from the bottom of the feed hopper.

[0005] This utility model is achieved through the following technical solution: a sludge conveying system, including a feed hopper, a sludge conveying pump, and a conveying motor that drives the sludge conveying pump. The bottom of the feed hopper is connected to the sludge conveying pump. The system also includes an impact unit and a drive unit. A support block is connected to the outside of the feed hopper. The impact unit is horizontally slidably engaged with the support block. An elastic element is connected between the impact unit and the feed hopper. The drive unit can drive the impact unit to intermittently impact the feed hopper.

[0006] Compared with existing technologies, this solution has the following advantages and beneficial effects:

[0007] In this solution, an impact unit and a drive unit are set up. The drive unit drives the handheld unit to intermittently impact the feed hopper, thereby causing the feed hopper to vibrate. This facilitates the loosening and falling off of the sludge adhering to the feed hopper, achieving the effect of cleaning the sludge on the side wall of the feed hopper. This avoids a large amount of sludge adhering to the feed hopper and affecting the discharge volume at the bottom of the feed hopper. It also prevents sludge from accumulating in the feed hopper due to the sludge not falling smoothly into the sludge conveying pump, which would affect the loading capacity of the feed hopper and cause it to be filled quickly.

[0008] In this design, an elastic element connects the impact unit and the feed hopper, which, in conjunction with the drive unit, enables the impact unit to reset after intermittent impact, ensuring the smooth operation of the impact vibration.

[0009] Furthermore, it also includes a base, on which a bracket is connected, and on which a mounting platform is mounted. The drive unit includes a drive motor, a camshaft, and a cam. The drive motor is mounted on the mounting platform. One end of the camshaft is fixedly connected to the output shaft of the drive motor, and the other end of the camshaft is rotatably connected to the bracket. The cam is coaxially connected to the camshaft. During the rotation of the cam, it can intermittently push the impact unit to move horizontally and impact the feed hopper.

[0010] In this solution, the drive unit drives the camshaft to rotate via a drive motor, which in turn causes the cam connected to the camshaft to rotate. Due to the special structure of the cam, during one rotation, the cam will push the impact unit to move horizontally and move away from the impact unit, thereby achieving the purpose of intermittently impacting the feed hopper and causing the feed hopper to vibrate.

[0011] Furthermore, the impact unit includes multiple impact blocks, which are spaced apart on one side of the feed hopper. The multiple impact blocks are interconnected by a connecting frame, and the elastic element is connected between the connecting frame and the feed hopper.

[0012] The impact unit in this solution includes multiple impact blocks. These multiple impact blocks can expand the area of ​​impact vibration on the feed hopper, thereby improving the vibration effect of the feed hopper and making the vibration cleaning effect on the sludge adhering to the feed hopper better.

[0013] Furthermore, the number of the support blocks is the same as the number of the impact blocks, and each impact block is provided with a support block at its bottom, with the impact block and the support block sliding together horizontally.

[0014] In this design, a support block is installed at the bottom of each impact block to ensure that the movement of each impact block is more stable.

[0015] Furthermore, a groove is provided on the top of the support block, and the bottom of the impact block is inserted into the groove and slides in cooperation with the groove.

[0016] In this design, a groove is provided on the top of the support block. This groove slides in conjunction with the impact block, which further ensures the smooth movement of the impact block.

[0017] Furthermore, the feed hopper includes a straight cylindrical section and a funnel section that are interconnected. The bottom end of the straight cylindrical section is connected to the top end of the funnel section. A rectangular array of multiple impact blocks is distributed on one side of the straight cylindrical section of the feed hopper. The connecting frame has a rectangular frame structure.

[0018] In this design, the feed hopper is divided into a straight section and a funnel section. The funnel section can concentrate and discharge sludge into the sludge conveying pump for transportation. The straight section is designed with a straight cylindrical structure, so sludge is not easy to adhere to the inner wall of the straight section. Even if sludge adheres to the side wall of the straight section, it will fall off due to its own gravity. Therefore, the straight section can reduce the effect of sludge adhesion.

[0019] Furthermore, a connecting rod is connected to the middle position of the connecting frame, and an impact plate is fixedly connected to the connecting rod. The rotation of the cam in the driving unit can intermittently impact the impact plate.

[0020] In this design, a connecting rod is connected in the middle of the connecting frame, and an impact plate is fixed on the connecting rod. This arrangement makes it easy to set up a single drive unit to drive the entire connecting frame and multiple impact blocks to move synchronously, thereby achieving the impact effect. The arrangement of the connecting rod and impact plate in this design makes it easier to cooperate with the drive unit.

[0021] Furthermore, two vertical plates are fixedly connected to the top of the connecting frame, and a horizontal plate is fixedly connected between the top ends of the two vertical plates. The horizontal plate is located at the top of the feed hopper and can move horizontally.

[0022] The end of the horizontal plate away from the vertical plate extends to the inside of the feed hopper, and the end of the horizontal plate away from the vertical plate is connected to multiple inner layer rods, which are spaced apart along the length of the horizontal plate.

[0023] In this design, the two vertical plates connected to the top of the connecting frame facilitate the connection of the horizontal plates, and the horizontal plates facilitate the connection of multiple inner rods installed inside the feed hopper. The inner rods in this design can move with the impact unit as a whole and impact the inside of the feed hopper. Thus, the interaction between the inner rods and the outer impact blocks can improve the impact vibration effect on the feed hopper.

[0024] Furthermore, in this design, the inner rod is located in the inner layer of the feed hopper, making it less likely for sludge to adhere to the inner wall of the feed hopper. Also, because the inner rod moves intermittently with the impact unit, it can disturb the sludge falling into the feed hopper, making it less likely for the sludge to stick to the inner wall of the feed hopper, and making it easier for the sludge to fall from the bottom of the feed hopper into the sludge transfer pump.

[0025] Furthermore, the outline shape of the inner rod matches the outline shape of the feed hopper.

[0026] The shape of the inner rod matches the shape of the feed hopper, which makes the cleaning effect of the sludge adhering to the inner wall of the feed hopper better and more comprehensive.

[0027] Furthermore, it also includes a weighing sensor and a controller, both of which are electrically connected to the controller. The weighing sensor is capable of detecting the weight of the sludge in the feed hopper.

[0028] This solution includes a weighing sensor. When the weighing sensor detects that the feed hopper has reached the preset weight value, the controller starts the sludge conveying pump. Otherwise, the controller shuts down the sludge conveying pump to prevent it from running and burning out due to dry burning when there is no sludge in the feed hopper. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a partial sectional view in the front view direction of one embodiment of a sludge conveying system of the present invention;

[0031] Figure 2 This is a partial side view of one embodiment of a sludge conveying system according to the present invention;

[0032] Figure 3 This is a partial sectional view in the main view direction of another embodiment of a sludge conveying system of the present invention;

[0033] Figure 4 This is a partial side view of another embodiment of a sludge conveying system according to the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of a sludge conveying system according to the present invention, in which a weighing sensor is installed.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 1. Base, 2. Conveyor motor, 3. Bracket, 4. Sludge conveying pump, 5. Weighing sensor, 6. Mounting platform, 7. Drive motor, 8. Cam, 9. Camshaft, 10. Feed hopper, 11. Impact block, 12. Connecting frame, 12. Connecting rod, 12. Impact plate, 13. Vertical plate, 14. Horizontal plate, 15. Inner rod, 16. Spring, 17. Support block, 18. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0038] like Figures 1-2As shown, as an embodiment of this application, this embodiment provides a sludge conveying system, including a feed hopper 10, a sludge conveying pump 4, and a conveying motor 2 that drives the sludge conveying pump 4. The bottom of the feed hopper 10 is connected to the sludge conveying pump 4. This embodiment also includes a base 1, on which a bracket 3 is connected. In this embodiment, the bracket 3 is provided in two sets, and the two sets of bracket 3 are located on both sides of the feed hopper 10 respectively.

[0039] The bracket 3 is welded or bolted to the base 1. In this embodiment, there are two brackets 3 in each group, and the two brackets 3 are located on both sides of the base 1. In this embodiment, an mounting platform 6 is installed on one of the brackets 3 in each group.

[0040] The sludge conveying system in this embodiment also includes an impact unit and a drive unit. A support block 18 is connected to the outside of the feed hopper 10. In this embodiment, the feed hopper 10 and the support block 18 are welded or screwed together. The impact unit and the support block 18 are horizontally slidably connected. An elastic element is connected between the impact unit and the feed hopper 10. The drive unit can drive the impact unit to intermittently impact the feed hopper 10.

[0041] In this embodiment, the drive unit includes a drive motor 7, a camshaft 9, and a cam 8. Two sets of drive units and impact units are provided in this embodiment, located on opposite sides of the feed hopper 10. The drive units are mounted on two supports located in the same set of supports 3. The drive motor 7 is bolted to the mounting platform 6 of one of the supports 3. One end of the camshaft 9 is fixedly connected to the output shaft of the drive motor 7, and the other end of the camshaft 9 is rotatably connected to the other support 3 via a bearing. The cam 8 is coaxially connected to the camshaft 9 via a key and keyway. During the rotation of the cam 8, it can intermittently push the impact unit to move horizontally and impact the feed hopper 10, causing the feed hopper 10 to vibrate and dislodge the sludge adhering to it, thereby cleaning the sludge on the inner wall of the feed hopper 10.

[0042] In this embodiment, the impact unit includes multiple impact blocks 11, which are spaced apart on one side of the feed hopper 10. Connecting frames 12 connect the multiple impact blocks 11 to each other, and elastic elements connect the connecting frames 12 and the feed hopper 10. Specifically: Figure 1 As shown, the feed hopper 10 includes a straight cylindrical section and a funnel section that are interconnected. The bottom end of the straight cylindrical section is connected to the top end of the funnel section. The straight cylindrical section and the funnel section are welded together or integrally formed. In this embodiment, the cross-section of the straight cylindrical section is rectangular, and the funnel section includes multiple inclined surfaces to form a funnel shape. Figure 2As shown, there are six impact blocks 11. The six impact blocks 11 are arranged in a rectangular array on one side of the straight cylindrical part of the feed hopper 10. In this embodiment, the connecting frame 12 has a rectangular frame structure. The six impact blocks 11 are welded or bolted to the connecting frame 12. The six impact blocks 11 are connected into a whole by the setting of the connecting frame 12.

[0043] like Figure 1 As shown, in this embodiment, the number of support blocks 18 is the same as the number of impact blocks 11. Each impact block 11 has a support block 18 at its bottom. The impact block 11 and the support block 18 slide horizontally together. In one embodiment, the impact block 11 is located on top of the support block 18 and moves horizontally along the top of the support block 18. In another embodiment, a groove is provided on the top of the support block 18. The bottom of the impact block 11 is inserted into the groove and slides with the groove. The groove is not a through groove structure. This can limit the sliding position of the impact block 11, prevent the impact block 11 from sliding out of the groove, and ensure the stability of the sliding of the impact block 11.

[0044] In this embodiment, the elastic element is spring 17. When cam 8 is not pressing the impact block 11, there is a gap between the impact block 11 and the feed hopper 10 under the action of spring 17. When cam 8 rotates, when the far end of cam 8 (i.e. the end away from cam shaft 9) approaches and contacts the impact block 11, it will push the impact block 11 to move towards the feed hopper 10 and impact the feed hopper 10, thereby causing the feed hopper 10 to vibrate. When the far end of cam 8 leaves the impact block 11, the impact block 11 returns to its original position under the action of spring 17. In this way, the impact block 11 can intermittently impact the feed hopper 10 during the rotation of cam 8.

[0045] In another embodiment, such as Figure 2 As shown, a connecting rod 121 is connected to the middle position of the connecting frame 12. The two ends of the connecting rod 121 are respectively welded to the two inner side walls of the connecting frame 12, threaded to be fixed, or screwed to be fixed. An impact plate 13 is fixedly connected to the connecting rod 121. In this embodiment, the impact plate 13 is fixed to the middle of the connecting rod 121 by welding, screws, or other means, and the impact plate 13 is installed on the side facing the cam 8. The rotation of the cam 8 in the drive unit can intermittently impact the impact plate 13. That is, in this embodiment, the cam 8 is set directly opposite the impact plate 13, so that the cam 8 can push the impact plate 13 to move during the rotation of the cam 8, thereby driving the entire connecting frame 12 and multiple impact blocks 11 to reciprocate and impact the feed hopper 10.

[0046] In another embodiment, such as Figure 3 and Figure 4As shown, two vertical plates 14 are fixedly connected to the top of the connecting frame 12. The two vertical plates 14 are spaced apart. The vertical plates 14 are fixed to the top of the connecting frame 12 by welding, screws, or other means. A horizontal plate 15 is fixedly connected between the top ends of the two vertical plates 14. The two sides of the horizontal plate 15 are fixed to the two vertical plates 14 by welding, screws, or other means. The horizontal plate 15 is located at the top of the feed hopper 10 and can move horizontally. In this embodiment, the horizontal plate 15 is in contact with the top end of the feed hopper 10, so that the feed hopper 10 supports the horizontal plate 15.

[0047] like Figure 3 As shown, the end of the horizontal plate 15 away from the vertical plate 14 extends to the inner side of the feed hopper 10, and the end of the horizontal plate 15 away from the vertical plate 14 is connected to multiple inner rods 16. The multiple inner rods 16 are distributed at intervals along the length direction of the horizontal plate 15, and the inner rods 16 are welded and fixed to the horizontal plate 15. In this embodiment, the outline shape of the inner rods 16 matches the outline shape of the feed hopper 10, that is, the inner rods 16 have a vertical part parallel to the straight cylinder part and an inclined part parallel to the funnel part.

[0048] In this embodiment, when the spring 17 is not compressed by the cam 8, the inner rod 16 is in contact with the inner wall of the feed hopper 10. In this embodiment, the inner rod 16 can move synchronously with the movement of the impact block 11. The setting of the inner rod 16 can further reduce the adhesion of sludge to the feed hopper 10, and the setting of the inner rod 16 makes it difficult for sludge to adhere to the inner wall of the feed hopper 10. In addition, when the inner rod 16 moves with the impact block 11, it will also generate an impact on the feed hopper 10, thereby further improving the cleaning effect on the sludge on the inner wall of the feed hopper.

[0049] In this embodiment, a spring 17 is also connected between the vertical plate 14 and the feed hopper 10.

[0050] In another embodiment, such as Figure 5 As shown, a sludge conveying system also includes a weighing sensor 5 and a controller. The weighing sensor 5 and the sludge conveying pump 4 are both electrically connected to the controller. The weighing sensor 5 is installed on the base 1 directly below the feed hopper 10. The weighing sensor 5 is supported on the bottom of the feed hopper 10 and the corresponding sludge conveying pump 4. The weighing sensor 5 can detect the change in the weight of the sludge in the feed hopper 10, indirectly determine the amount of sludge in the feed hopper 10, and thus control the start and stop of the sludge conveying pump to avoid dry burning under no-load conditions. By pre-setting a weight threshold on the controller, the weight threshold set in this embodiment is the minimum safe weight threshold (to prevent insufficient sludge).

[0051] When the weighing sensor 5 detects that the weight of the feed hopper 10 is greater than or equal to the preset weight threshold, the sludge in the feed hopper is sufficient, and the controller controls the sludge conveying pump 4 to start. When the weight of the feed hopper detected by the weighing sensor 5 is less than the preset weight threshold, the sludge in the feed hopper is insufficient or there is no sludge, and the controller controls the sludge conveying pump 4 to stop running. This can effectively prevent the sludge conveying pump 4 from being damaged by dry burning when there is insufficient or no sludge in the feed hopper 10.

[0052] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sludge conveying system, comprising a feed hopper, a sludge conveying pump, and a conveying motor for driving the sludge conveying pump, wherein the bottom of the feed hopper is connected to the sludge conveying pump, characterized in that, It also includes an impact unit and a drive unit. A support block is connected to the outside of the feed hopper. The impact unit slides horizontally with the support block. An elastic element is connected between the impact unit and the feed hopper. The drive unit can drive the impact unit to intermittently impact the feed hopper.

2. The sludge conveying system according to claim 1, characterized in that, It also includes a base, on which a bracket is connected, and on which a mounting platform is mounted. The drive unit includes a drive motor, a camshaft, and a cam. The drive motor is mounted on the mounting platform. One end of the camshaft is fixedly connected to the output shaft of the drive motor, and the other end of the camshaft is rotatably connected to the bracket. The cam is coaxially connected to the camshaft. During the rotation of the cam, it can intermittently push the impact unit to move horizontally and impact the feed hopper.

3. A sludge conveying system according to claim 2, characterized in that, The impact unit includes multiple impact blocks, which are spaced apart on one side of the feed hopper. The impact blocks are connected to each other by a connecting frame, and the elastic element is connected between the connecting frame and the feed hopper.

4. A sludge conveying system according to claim 3, characterized in that, The number of support blocks is the same as the number of impact blocks, and each impact block has a support block at its bottom. The impact block and the support block slide horizontally together.

5. A sludge conveying system according to claim 4, characterized in that, The top of the support block is provided with a sliding groove, and the bottom of the impact block is inserted into the sliding groove and slides in cooperation with the sliding groove.

6. A sludge conveying system according to claim 3, characterized in that, The feed hopper includes a straight cylindrical section and a funnel section that are interconnected. The bottom end of the straight cylindrical section is connected to the top end of the funnel section. A rectangular array of multiple impact blocks is distributed on one side of the straight cylindrical section of the feed hopper. The connecting frame has a rectangular frame structure.

7. A sludge conveying system according to claim 6, characterized in that, A connecting rod is connected to the middle position of the connecting frame, and an impact plate is fixedly connected to the connecting rod. The cam in the driving unit can intermittently impact the impact plate by rotating.

8. A sludge conveying system according to any one of claims 3-7, characterized in that, Two vertical plates are fixedly connected to the top of the connecting frame, and a horizontal plate is fixedly connected between the top ends of the two vertical plates. The horizontal plate is located at the top of the feed hopper and can move horizontally. The end of the horizontal plate away from the vertical plate extends to the inside of the feed hopper, and the end of the horizontal plate away from the vertical plate is connected to multiple inner layer rods, which are spaced apart along the length of the horizontal plate.

9. A sludge conveying system according to claim 8, characterized in that, The outline shape of the inner rod matches the outline shape of the feed hopper.

10. A sludge conveying system according to any one of claims 1-7, characterized in that, It also includes a weighing sensor and a controller. The weighing sensor and the sludge conveying pump are both electrically connected to the controller. The weighing sensor can detect the weight of the sludge in the feed hopper.

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