Sludge sampling device for sewage treatment plant

Abstract

The utility model discloses a sewage treatment plant sludge sampling device which comprises a sampling barrel outer barrel, the inner wall of the sampling barrel outer barrel is rotatably connected with a sampling barrel inner barrel, both sides of the lower end surface of the sampling barrel inner barrel are fixedly connected with sludge scrapers, the inner wall of the lower end of the sampling barrel inner barrel is in threaded connection with a solid pointed cone, and the inner wall of the lower end of the sampling barrel inner barrel is in threaded connection with the solid pointed cone. A connecting rod slidably penetrates through the top of the sampling barrel inner barrel, a pushing column is fixedly connected to the lower end of the connecting rod, and operating rods are fixedly connected to the tops of the two sides of the sampling barrel outer barrel. The sludge sampling device for the sewage treatment plant, provided by the utility model, is accurate in sampling, simple and convenient to operate and low in cost, and is free from the condition that the sludge storage time is different according to different sludge yields and different capacities of sludge transport vehicles; and the method can be used for quickly and simply sampling for inspection, enhancing the supervision of the sludge moisture content and accurately representing the sampling depth.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge sampling, and particularly relates to a sludge sampling device for a sewage treatment plant. Background Art

[0002] With the rapid development of the sewage treatment industry, the sludge output has increased significantly. There is a contradiction between the current limited sludge treatment capacity and the growing sludge in each city, resulting in the gradual increase of the control requirements for sludge moisture content in relevant policies.

[0003] At present, the surplus sludge of some sewage treatment plants is dehydrated by a dehydrator and then transported to a sludge transport vehicle for temporary storage by a conveyor. After the sludge transport vehicle is full, it is transported out for disposal. The sludge storage time varies according to the sludge production rate and the capacity of the sludge transport vehicle. Therefore, the moisture content of the sludge piled on the surface cannot accurately reflect the true value. In order to quickly and simply sample and send it for inspection and strengthen the supervision of sludge moisture content, a device with accurate sampling, simple operation and low cost is needed.

[0004] Based on the above situation, the sewage treatment plant needs to develop a sludge sampling device for the sewage treatment plant with accurate sampling, simple operation and low cost according to the actual conditions. Content of the Utility Model

[0005] The purpose of the utility model is to propose a sludge sampling device for a sewage treatment plant in view of the deficiencies of the prior art, so as to solve the problem that the moisture content of the sludge piled on the surface cannot accurately reflect the true value after the surplus sludge of the sewage treatment plant in the prior art is dehydrated by a dehydrator and then transported to a sludge transport vehicle for temporary storage by a conveyor.

[0006] The technical purpose of the utility model is realized by the following technical solutions:

[0007] A sludge sampling device for a sewage treatment plant includes an outer sampling cylinder. The inner wall of the outer sampling cylinder is rotatably connected with an inner sampling cylinder. Both sides of the lower end surface of the inner sampling cylinder are fixedly connected with scraping plates. The lower end inner wall of the inner sampling cylinder is threadedly connected with a solid pointed cone. A connecting rod slidably penetrates through the top of the inner sampling cylinder. The lower end of the connecting rod is fixedly connected with a pushing column. Both sides of the top of the outer sampling cylinder are fixedly connected with operating rods. Both sides of the top of the inner sampling cylinder are fixedly connected with fixing rods. The upper end of the connecting rod is fixedly connected with a handle. The surface of the outer sampling cylinder is engraved with scales.

[0008] Preferably, a limit and rebound mechanism is installed on the surface of the upper end of the connecting rod. The limit and rebound mechanism includes a round block and a spring. The round block is sleeved and welded on the surface of the upper end of the connecting rod.

[0009] Preferably, the spring is movably sleeved on the surface of the upper end of the connecting rod, and both ends of the spring are fixedly connected to the top of the inner cylinder of the sampling cylinder and the bottom of the round block respectively.

[0010] Preferably, a fixing mechanism is installed at the top of the inner cylinder of the sampling cylinder. The fixing mechanism includes a connecting block and a fixing bolt. One end of the connecting block close to the inner cylinder of the sampling cylinder is fixedly connected to the right side of the top of the inner cylinder of the sampling cylinder, and the fixing bolt is threadedly penetrated and embedded on the surface of the end of the connecting block away from the inner cylinder of the sampling cylinder.

[0011] Preferably, a limiting block is fixedly connected to the top of the outer cylinder of the sampling cylinder through a bolt, and the bottom of the limiting block contacts the top of the inner cylinder of the sampling cylinder.

[0012] Preferably, a movable plate is rotatably connected to the surface of the solid pointed cone through a damping rotating shaft, and a groove adapted to the movable plate is formed on the surface of the solid pointed cone.

[0013] Preferably, the outer cylinder and the inner cylinder of the sampling cylinder can be made of stainless steel or PVC, and the shape of the mud scraping plate is arc-shaped.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] A sludge sampling device for a sewage treatment plant provided by the utility model has accurate sampling, simple operation and low cost. It is not affected by the problem that the storage time of sludge varies due to different sludge production rates and the capacities of sludge transport vehicles, resulting in the moisture content of the sludge piled on the surface being unable to accurately reflect the true value. It can quickly and simply sample and send for inspection, strengthen the supervision of sludge moisture content, and can accurately represent the sampling depth. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial front view, sectional and three-dimensional structural schematic diagram of an embodiment of the utility model.

[0018] Figure 3 It is a partial top view, sectional and three-dimensional structural schematic diagram of an embodiment of the utility model.

[0019] Figure 4 It is a top view, sectional and three-dimensional structural schematic diagram of the utility model in a closed state in an embodiment.

[0020] In the above-mentioned drawings: 1. Outer cylinder of the sampling cylinder; 2. Inner cylinder of the sampling cylinder; 3. Mud scraping plate; 4. Solid pointed cone; 5. Connecting rod; 6. Thrust column; 7. Operating rod; 8. Fixed rod; 9. Handle; 10. Scale; 11. Limit and rebound mechanism; 12. Fixing mechanism; 13. Limit block; 14. Movable plate; 15. Groove; 111. Round block; 112. Spring; 121. Connecting block; 122. Fixed bolt. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As a preferred embodiment of the present invention, as Figures 1 - 4 shown, this embodiment provides a sludge sampling device for a sewage treatment plant, including an outer cylinder 1 of the sampling cylinder. The inner wall of the outer cylinder 1 of the sampling cylinder is rotatably connected with an inner cylinder 2 of the sampling cylinder. Both sides of the lower end surface of the inner cylinder 2 of the sampling cylinder are fixedly connected with mud scraping plates 3. The inner wall of the lower end of the inner cylinder 2 of the sampling cylinder is threadedly connected with a solid pointed cone 4. The top of the inner cylinder 2 of the sampling cylinder is slidably penetrated by a connecting rod 5. The lower end of the connecting rod 5 is fixedly connected with a thrust column 6. Both sides of the top of the outer cylinder 1 of the sampling cylinder are fixedly connected with operating rods 7. Both sides of the top of the inner cylinder 2 of the sampling cylinder are fixedly connected with fixed rods 8. The upper end of the connecting rod 5 is fixedly connected with a handle 9. The surface of the outer cylinder 1 of the sampling cylinder is engraved with a scale 10.

[0023] When the above-mentioned embodiment is implemented, rotate the inner cylinder 2 of the sampling cylinder to rotate the mud scraping plate 3, so that the openings on the lower end surfaces of the inner cylinder 2 of the sampling cylinder and the outer cylinder 1 of the sampling cylinder are closed. Thread the solid pointed cone 4 onto the inner wall of the lower end of the inner cylinder 2 of the sampling cylinder. This can reduce the resistance during installation and facilitate the removal of the mud sample during removal. Insert the device into the sludge according to the sampling depth. The scale 10 can accurately indicate the sampling depth. Then hold the fixed rod 8 and rotate it to drive the inner cylinder 2 of the sampling cylinder to rotate, opening the openings on the lower end surfaces of the inner cylinder 2 of the sampling cylinder and the outer cylinder 1 of the sampling cylinder. Then hold the operating rod 7 and rotate it counterclockwise, thereby driving the outer cylinder 1 of the sampling cylinder and the mud scraping plate 3 to rotate. The mud scraping plate 3 can scrape the sludge into the sampling cylinder during rotation. Then rotate the inner cylinder 2 of the sampling cylinder again to close the opening on the lower end surface of the outer cylinder 1 of the sampling cylinder. Remove the device, take off the solid pointed cone 4, hold the handle 9 and push the connecting rod 5 to move, so that the thrust column 6 moves to push out the mud sample in the sampling cylinder.

[0024] In some embodiments, as Figure 1 and Figure 2As shown, a limit and rebound mechanism 11 is mounted on the surface of the upper end of the connecting rod 5. The limit and rebound mechanism 11 includes a round block 111 and a spring 112. The round block 111 is sleeved and welded on the surface of the upper end of the connecting rod 5.

[0025] In this embodiment, in order to limit the pushing column 6 to cooperate with the pushing out of the mud sample and the sampling amount, under the action of the elastic force of the spring 112, the round block 111 and the connecting rod 5 are limited, and then the pushing column 6 is limited so that it will not move randomly. When sampling, the mud sample entering the sampling cylinder is limited. When holding the handle 9 and pushing the connecting rod 5 to move, and then making the pushing column 6 move to push out the mud sample in the sampling cylinder, the spring 112 deforms. After the mud sample is pushed out, under the action of the spring 112 rebounding, the round block 111, the connecting rod 5, the pushing column 6 and the handle 9 return to their original positions.

[0026] In some embodiments, such as Figure 1 and Figure 2 As shown, the spring 112 is movably sleeved on the surface of the upper end of the connecting rod 5. The two ends of the spring 112 are respectively fixedly connected to the top of the inner cylinder 2 of the sampling cylinder and the bottom of the round block 111.

[0027] In this embodiment, in order to ensure that after the mud sample is pushed out, the round block 111, the connecting rod 5, the pushing column 6 and the handle 9 return to their original positions. When holding the handle 9 and pushing the connecting rod 5 to move, and then making the pushing column 6 move to push out the mud sample in the sampling cylinder, the spring 112 deforms. After the mud sample is pushed out, under the action of the spring 112 rebounding, the round block 111, the connecting rod 5, the pushing column 6 and the handle 9 return to their original positions.

[0028] In some embodiments, such as Figure 1 and Figure 2 As shown, a fixing mechanism 12 is mounted on the top of the inner cylinder 2 of the sampling cylinder. The fixing mechanism 12 includes a connecting block 121 and a fixing bolt 122. One end of the connecting block 121 close to the inner cylinder 2 of the sampling cylinder is fixedly connected to the right side of the top of the inner cylinder 2 of the sampling cylinder. The fixing bolt 122 is threadedly penetrated and embedded on the surface of the end of the connecting block 121 away from the inner cylinder 2 of the sampling cylinder.

[0029] In this embodiment, it is mainly considered to avoid the rotation of the inner cylinder 2 of the sampling cylinder relative to the outer cylinder 1 of the sampling cylinder when the device is inserted into the sludge, the sludge is sampled and the device is taken out. When inserting the sludge, the openings on the lower end surfaces of the inner cylinder 2 of the sampling cylinder and the outer cylinder 1 of the sampling cylinder are closed and limited to avoid opening during the insertion process, resulting in the entry of mud samples at non-sampling depths into the sampling cylinder. Similarly, the same situation is avoided when taking out the device.

[0030] In some embodiments, such as Figure 1 and Figure 2 As shown, a limit block 13 is fixedly connected to the top of the outer cylinder 1 of the sampling cylinder through a bolt. The bottom of the limit block 13 contacts the top of the inner cylinder 2 of the sampling cylinder.

[0031] This embodiment mainly considers limiting the inner cylinder 2 of the sampling cylinder to avoid separation between the inner cylinder 2 and the outer cylinder 1 of the sampling cylinder.

[0032] In some embodiments, as Figure 1 , Figure 3 and Figure 4 shown, a movable plate 14 is rotatably connected to the surface of the solid pointed cone 4 through a damping rotating shaft, and a groove 15 adapted to the movable plate 14 is provided on the surface of the solid pointed cone 4.

[0033] This embodiment mainly considers that in order to facilitate the installation and removal of the solid pointed cone 4 on the inner cylinder 2 of the sampling cylinder, the movable plate 14 is rotated so that one end thereof is disengaged from the groove 15, and then it is convenient to drive the solid pointed cone 4 to rotate for installation or removal.

[0034] In some embodiments, as Figure 1 and Figure 2 shown, the outer cylinder 1 and the inner cylinder 2 of the sampling cylinder can be made of stainless steel, and the shape of the sludge scraping plate 3 is arc-shaped.

[0035] This embodiment mainly considers that the sludge scraping plate 3 can scrape the sludge into the sampling cylinder during rotation when in use.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A sludge sampling device for a sewage treatment plant, comprising a sampling tube and an outer tube (1), characterized in that: The inner wall of the sampling tube outer tube (1) is rotatably connected to the sampling tube inner tube (2), and both sides of the lower end surface of the sampling tube inner tube (2) are fixedly connected to scraper plates (3). The inner wall of the lower end of the sampling tube inner tube (2) is threadedly connected to a solid pointed cone (4). A connecting rod (5) is slidably penetrated through the top of the sampling tube inner tube (2), and the lower end of the connecting rod (5) is fixedly connected to a push column (6). The tops of both sides of the sampling tube outer tube (1) are fixedly connected to operating rods (7), and both sides of the top of the sampling tube inner tube (2) are fixedly connected to fixing rods (8). The upper end of the connecting rod (5) is fixedly connected to a handle (9), and the surface of the sampling tube outer tube (1) is engraved with scales (10).

2. A sludge sampling device for a sewage treatment plant according to claim 1, characterized in that: A limit rebound mechanism (11) is installed on the surface of the upper end of the connecting rod (5), the limit rebound mechanism (11) comprising a round block (111) and a spring (112), the round block (111) being sleeved and welded on the surface of the upper end of the connecting rod (5).

3. A sludge sampling device for a sewage treatment plant according to claim 2, characterized in that: The spring (112) is movably sleeved on the surface of the upper end of the connecting rod (5), and the two ends of the spring (112) are respectively fixedly connected to the top of the inner tube (2) of the sampling tube and the bottom of the round block (111).

4. A sludge sampling device for a sewage treatment plant according to claim 1, characterized in that: A fixing mechanism (12) is installed at the top of the sampling tube inner tube (2), and the fixing mechanism (12) comprises a connecting block (121) and a fixing bolt (122). An end of the connecting block (121) close to the sampling tube inner tube (2) is fixedly connected to the right side of the top of the sampling tube inner tube (2), and the fixing bolt (122) is threadedly penetrated and embedded in the surface of the connecting block (121) at an end away from the sampling tube inner tube (2).

5. A sludge sampling device for a sewage treatment plant according to claim 1, characterized in that: The top of the sampling tube outer tube (1) is fixedly connected to a limiting block (13) by means of bolts, and the bottom of the limiting block (13) is in contact with the top of the sampling tube inner tube (2).

6. A sludge sampling device for a sewage treatment plant according to claim 1, characterized in that: The surface of the solid pointed cone (4) is rotatably connected to a movable plate (14) via a damping shaft, and a groove (15) matching the movable plate (14) is formed on the surface of the solid pointed cone (4).

7. A sludge sampling device for a sewage treatment plant according to claim 1, characterized in that: The sampling tube outer tube (1) and the sampling tube inner tube (2) can be made of stainless steel or PVC, and the scraper (3) is in an arc shape.

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