Pumping device mounted in sludge receiving pit

Abstract

The utility model relates to a pumping device mounted in a sludge receiving pit. The pumping device comprises a fixed base, a first mounting frame, a sludge screw pump, a conveying steel pipe and a second mounting frame, the first mounting frame is arranged on the fixed base and rotationally connected with the fixed base, the sludge screw pump is fixedly arranged on the first mounting frame, the central axis of the sludge screw pump and the ground form an acute angle, the conveying steel pipe is fixedly connected with the discharging end of the sludge screw pump, and the second mounting frame is fixedly connected with the conveying steel pipe; and the second mounting frame comprises a frame body and universal wheels. According to the sludge conveying device, in the process that a sludge screw pump pumps sludge into a sludge receiving pit, a worker can push a second mounting frame, so that a first mounting frame and a fixed base rotate relatively, a discharging opening of a conveying steel pipe changes accordingly, the stacking area of the sludge is enlarged, and the stacking height of the sludge after pumping is reduced; and subsequent sludge transfer is facilitated.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a pumping device installed in a sludge receiving pit. Background Technology

[0002] Sludge treatment centers are the main sites for processing sludge. During the sludge treatment process, the sludge needs to be sent to a sludge receiving pit, where it undergoes anaerobic digestion and fermentation to decompose the organic matter. Subsequently, workers further process the sludge in the receiving pit through filtration and dewatering, transforming the sludge from a liquid to a solid state for easier transportation and processing. Finally, the dried sludge is used in agriculture and forestry, sanitary landfills, incineration, or the production of building materials.

[0003] Because the sludge receiving pit has high walls and the sludge entering the pit has a high water content, it is often necessary to install pumping devices inside and outside the pit to transport the sludge. However, in existing technologies, the discharge port of the pumping device generally remains unchanged, causing the sludge to easily accumulate after exiting the discharge port, thus affecting subsequent sludge transfer. Utility Model Content

[0004] In order to reduce the accumulation height of sludge in the sludge receiving pit and facilitate subsequent sludge transfer, this application provides a pumping device installed in the sludge receiving pit.

[0005] This application provides a pumping device installed in a sludge receiving pit, which adopts the following technical solution:

[0006] A pumping device installed in a sludge receiving pit includes a fixed base, a first mounting frame, a sludge screw pump, a conveying steel pipe, and a second mounting frame. The first mounting frame is disposed on the fixed base and is rotatably connected to the fixed base. The sludge screw pump is fixedly mounted on the first mounting frame, and the central axis of the sludge screw pump is set at an acute angle to the ground. The conveying steel pipe is fixedly connected to the discharge end of the sludge screw pump. The second mounting frame is fixedly connected to the conveying steel pipe. The second mounting frame includes a frame body and casters. One end of the frame body is fixedly connected to the conveying steel pipe, and the other end of the frame body is fixedly connected to the casters.

[0007] By adopting the above technical solution, during the process of pumping sludge into the sludge receiving pit by the sludge screw pump, the staff can push the second mounting frame, thereby causing the first mounting frame to rotate relative to the fixed base. The discharge port of the conveying steel pipe also changes accordingly, expanding the sludge accumulation area and reducing the sludge accumulation height after pumping, so as to facilitate the subsequent transfer of sludge.

[0008] Optionally, the second mounting bracket further includes a handwheel, a screw, and an abutment plate; the screw is vertically arranged and threadedly connected to the bracket body, one end of the screw is fixedly connected to the handwheel, and the other end of the screw is fixedly connected to the abutment plate; the abutment plate is horizontally arranged and is used to abut against the ground.

[0009] By adopting the above technical solution, the workers can turn the handwheel to make the abutment plate abut against the ground, thereby fixing the position of the second mounting frame and reducing the movement of the second mounting frame, so as to facilitate the pumping device to pump sludge into the sludge receiving pit.

[0010] Optionally, the second mounting bracket further includes a wear-resistant rubber pad, which is fixed to the abutment plate on the side away from the screw, and is used to abut against the ground.

[0011] By adopting the above technical solution, a wear-resistant rubber pad is set on the side of the contact plate near the ground. The wear-resistant rubber pad has a certain deformation capacity, which makes the wear-resistant rubber pad fit tightly against the ground, thereby improving the friction between the wear-resistant rubber pad and the ground and improving the stability of the pumping device operation.

[0012] Optionally, a traction assembly is also included, which includes two winches located on both sides of the conveying steel pipe. The traction ropes of the two winches are connected to the second mounting frame, and the two winches are connected to the back-end controller. The two winches alternately pull the second mounting frame.

[0013] By adopting the above technical solution, the second mounting frame is alternately pulled by two winches, so that when the sludge screw pump pumps sludge into the sludge receiving pit, the position of the discharge port of the conveying steel pipe can be dynamically changed to reduce the accumulation of sludge around the pit wall, thereby facilitating the subsequent sludge transportation.

[0014] Optionally, the conveying steel pipe includes a first pipe section and a second pipe section that are connected to each other. The first pipe section is fixedly connected to the discharge end of the sludge screw pump, and the central axis of the first pipe section is coaxial with the central axis of the sludge screw pump. The second pipe section is located on the same vertical plane as the first pipe section and is horizontally arranged.

[0015] By adopting the above technical solution, the second pipe section is set horizontally, so that when the sludge is pumped out from the outlet of the conveying steel pipe, the sludge has an initial velocity in the horizontal direction, thereby increasing the pumping distance of the sludge and reducing the accumulation of sludge around the pit wall, so as to facilitate the subsequent sludge transportation.

[0016] Optionally, the conveying steel pipe further includes a third pipe section, which is connected to the second pipe section. The third pipe section and the second pipe section are located on the same vertical plane, and the third pipe section and the second pipe section are set at an obtuse angle.

[0017] By adopting the above technical solution, the third pipeline is set at an angle, which can convert part of the gravitational potential energy of the sludge into kinetic energy in the horizontal direction, thereby further increasing the pumping distance of the sludge in the horizontal direction and reducing the accumulation of sludge around the pit wall.

[0018] Optionally, the diameter of the third pipe segment decreases along the direction away from the second pipe segment.

[0019] By adopting the above technical solution, the diameter of the third pipe section decreases, thereby increasing the pumping speed of the sludge when it is pumped out from the outlet of the conveying steel pipe, increasing the pumping distance of the sludge in the horizontal direction, reducing the accumulation of sludge around the pit wall, and thus facilitating the subsequent transportation of sludge.

[0020] Optionally, the first pipe segment and the second pipe segment, and the second pipe segment and the third pipe segment are all fixedly connected by bolts.

[0021] By adopting the above technical solution, the first and second pipe sections, as well as the second and third pipe sections, are all fixedly connected by bolts, which facilitates the installation of the conveying steel pipes by the workers. Furthermore, the workers can select the shape of the conveying steel pipes according to the size of the sludge receiving pit, thus facilitating operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. During the process of pumping sludge into the sludge receiving pit by the sludge screw pump, the operator can push the second mounting frame, which causes the first mounting frame to rotate relative to the fixed base. The discharge port of the conveying steel pipe also changes accordingly, expanding the sludge accumulation area and reducing the sludge accumulation height after pumping, so as to facilitate the subsequent transfer of sludge.

[0024] 2. By turning the handwheel, the worker can make the contact plate abut against the ground to fix the position of the second mounting bracket and reduce the movement of the second mounting bracket, so as to facilitate the pumping device to pump sludge into the sludge receiving pit;

[0025] 3. By alternately pulling the second mounting frame with two winches, the position of the discharge port of the conveying steel pipe can be dynamically changed when the sludge screw pump pumps sludge into the sludge receiving pit, so as to reduce the accumulation of sludge around the pit wall and facilitate the subsequent sludge transportation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the pumping device in Example 1.

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 This is a schematic diagram of the pumping device in Example 2.

[0029] Figure 4 This is a schematic diagram of the pumping device in Example 3.

[0030] Explanation of reference numerals in the attached drawings: 1. Fixed base; 2. First mounting bracket; 21. Rotating plate; 22. Frame body; 3. Sludge screw pump; 4. Conveying steel pipe; 41. First pipe section; 42. Second pipe section; 43. Third pipe section; 5. Second mounting bracket; 51. Frame body; 52. Casters; 53. Handwheel; 54. Screw; 55. Abutment plate; 56. Wear-resistant rubber pad; 6. Traction assembly; 61. Winch. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] Example 1

[0033] This application discloses a pumping device installed in a sludge receiving pit. The pumping device can be located inside or outside the sludge receiving pit; it can be located outside the sludge receiving pit to pump sludge into the pit; or it can be located inside the sludge receiving pit to transfer sludge from outside the pit to the central area of ​​the pit. In this embodiment, the pumping device can be located outside the sludge receiving pit to pump sludge into the pit.

[0034] Reference Figure 1 The pumping device installed in the sludge receiving pit includes a fixed base 1, a first mounting frame 2, a sludge screw pump 3, a conveying steel pipe 4, and a second mounting frame 5.

[0035] Reference Figure 1 The first mounting bracket 2 is disposed on the fixed base 1 and is rotatably connected to the fixed base 1. In this embodiment, the first mounting bracket 2 includes a rotating plate 21 and a frame body 22. The frame body 22 is fixed on the rotating plate 21, and the rotating plate 21 is rotatably connected to the fixed base 1. The rotating plate 21 and the fixed base 1 can be rotatably connected by means of ball bearings, circular tracks, etc. This application does not limit the specific rotatable connection method between the rotating plate 21 and the fixed base 1. In this embodiment, the rotating plate 21 and the fixed base 1 are rotatably connected by ball bearings.

[0036] Reference Figure 1The sludge screw pump 3 is bolted to the frame 22, and its central axis forms an acute angle with the ground. The conveying steel pipe 4 is fixedly connected to the discharge end of the sludge screw pump 3. The discharge port of the conveying steel pipe 4 is located above the sludge receiving pit. The feed end of the sludge screw pump 3 can be connected to the storage tank of the sludge transport vehicle through a conveying hose, thereby pumping the sludge in the storage tank to the sludge receiving pit.

[0037] Reference Figure 1 The second mounting frame 5 is fixedly connected to the conveying steel pipe 4. The second mounting frame 5 includes a frame body 51 and a caster wheel 52. One end of the frame body 51 is fixedly connected to the conveying steel pipe 4, and the other end of the frame body 51 is fixedly connected to the caster wheel 52. Thus, the operator can push the second mounting frame 5 to rotate the position of the sludge screw pump 3 and the conveying steel pipe 4, thereby adjusting the position of the discharge port of the conveying steel pipe 4.

[0038] Reference Figure 1 and Figure 2 The second mounting frame 5 also includes a handwheel 53, a screw 54, an abutment plate 55, and a wear-resistant rubber pad 56. The screw 54 is vertically positioned and threadedly connected to the frame body 51. One end of the screw 54 is fixedly connected to the handwheel 53, and the other end is fixedly connected to the abutment plate 55. The abutment plate 55 is horizontally positioned, and the wear-resistant rubber pad 56 is fixed to the side of the abutment plate 55 away from the screw 54, and is used to abut against the ground. In this embodiment, the area of ​​the wear-resistant rubber pad 56 is larger than the area of ​​the abutment plate 55. By rotating the handwheel 53, the operator causes the wear-resistant rubber pad 56 on the abutment plate 55 to abut against the ground, thereby fixing the position of the second mounting frame 5 and reducing its movement, thus facilitating the pumping device to pump sludge into the sludge receiving pit. The wear-resistant rubber pad 56 has a certain deformation capacity, which allows the wear-resistant rubber pad 56 to come into close contact with the ground, thereby increasing the friction between the wear-resistant rubber pad 56 and the ground and improving the stability of the pumping device operation.

[0039] The implementation principle of a pumping device installed in a sludge receiving pit according to an embodiment of this application is as follows:

[0040] Reference Figure 1 and Figure 2 During the process of pumping sludge into the sludge receiving pit by the sludge screw pump, the staff can push the second mounting frame 5, which causes the first mounting frame 2 and the fixed base 1 to rotate relative to each other. The discharge port of the conveying steel pipe 4 also changes accordingly, expanding the sludge accumulation area and reducing the sludge accumulation height after pumping, so as to facilitate the subsequent transfer of sludge.

[0041] Reference Figure 1 and Figure 2When it is necessary to fix the position of the discharge port of the conveying steel pipe 4, the operator turns the handwheel 53 so that the wear-resistant rubber pad 56 on the abutment plate 55 abuts against the ground to fix the position of the second mounting frame 5, reduce the movement of the second mounting frame 5, so as to facilitate the pumping device to pump sludge into the sludge receiving pit and improve the stability of the pumping device operation.

[0042] Example 2

[0043] The difference between Example 2 and Example 1 is as follows:

[0044] Reference Figure 3 The pumping device also includes a traction assembly 6, which comprises two winches 61 positioned on either side of the conveying steel pipe 4. The traction ropes of both winches 61 are connected to the second mounting frame 5, and both winches 61 are connected to a back-end controller. The two winches 61 alternately pull the second mounting frame 5. By alternately pulling the second mounting frame 5 with the two winches 61, the position of the discharge port of the conveying steel pipe 4 can be dynamically changed when the sludge screw pump 3 pumps sludge into the sludge receiving pit, reducing sludge accumulation around the pit wall and facilitating subsequent sludge transport. It is worth noting that when the traction assembly 6 pulls the second mounting frame 5, the wear-resistant rubber pad 56 on the second mounting frame 5 separates from the ground.

[0045] Example 3

[0046] The difference between Example 3 and Example 2 is as follows:

[0047] Reference Figure 4 The conveying steel pipe 4 includes a first pipe section 41, a second pipe section 42, and a third pipe section 43 connected in sequence. The first pipe section 41, the second pipe section 42, and the third pipe section 43 are located on the same vertical plane, and the first pipe section 41 and the second pipe section 42, and the second pipe section 42 and the third pipe section 43 are all fixedly connected by bolts.

[0048] Reference Figure 4 The first pipe section 41 is fixedly connected to the discharge end of the sludge screw pump 3, and the central axis of the first pipe section 41 is coaxial with the central axis of the sludge screw pump 3; the second pipe section 42 is horizontally arranged, and the third pipe section 43 is arranged at an obtuse angle to the second pipe section 42.

[0049] Reference Figure 4 The second pipe section 42 is set horizontally, so that when the sludge is pumped out from the discharge port of the conveying steel pipe 4, the sludge has an initial velocity in the horizontal direction; at the same time, the third pipe is set at an inclination, so that part of the gravitational potential energy of the sludge can be converted into kinetic energy in the horizontal direction, thereby further increasing the pumping distance of the sludge in the horizontal direction and reducing the accumulation height of the sludge around the pit wall, so as to facilitate the subsequent sludge transportation.

[0050] Reference Figure 4 Meanwhile, in this embodiment, the diameter of the third pipe section 43 decreases along the direction away from the second pipe section 42; thus, when the sludge is pumped out from the outlet of the conveying steel pipe 4, the pumping speed of the sludge can be increased, the pumping distance in the horizontal direction of the sludge can be increased, the accumulation of sludge around the pit wall can be reduced, thereby facilitating the subsequent conveying of sludge.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pumping device installed in a sludge receiving pit, characterized in that: The system includes a fixed base (1), a first mounting frame (2), a sludge screw pump (3), a conveying steel pipe (4), and a second mounting frame (5). The first mounting frame (2) is mounted on the fixed base (1) and is rotatably connected to the fixed base (1). The sludge screw pump (3) is fixed on the first mounting frame (2), and the central axis of the sludge screw pump (3) is set at an acute angle to the ground. The conveying steel pipe (4) is fixedly connected to the discharge end of the sludge screw pump (3). The second mounting frame (5) is fixedly connected to the conveying steel pipe (4). The second mounting frame (5) includes a frame body (51) and casters (52). One end of the frame body (51) is fixedly connected to the conveying steel pipe (4), and the other end of the frame body (51) is fixedly connected to the casters (52).

2. The pumping device installed in the sludge receiving pit according to claim 1, characterized in that: The second mounting bracket (5) also includes a handwheel (53), a screw (54), and an abutment plate (55); the screw (54) is vertically arranged and threadedly connected to the bracket body (51); one end of the screw (54) is fixedly connected to the handwheel (53), and the other end of the screw (54) is fixedly connected to the abutment plate (55); the abutment plate (55) is horizontally arranged and is used to abut against the ground.

3. The pumping device installed in the sludge receiving pit according to claim 2, characterized in that: The second mounting bracket (5) also includes a wear-resistant rubber pad (56), which is fixed to the side of the abutment plate (55) away from the screw (54) and is used to abut against the ground.

4. The pumping device installed in the sludge receiving pit according to claim 1, characterized in that: It also includes a traction assembly (6), which includes two winches (61). The two winches (61) are located on both sides of the conveying steel pipe (4). The traction ropes of the two winches (61) are connected to the second mounting frame (5). The two winches (61) are connected to the background controller. The two winches (61) alternately pull the second mounting frame (5).

5. The pumping device installed in the sludge receiving pit according to claim 1, characterized in that: The conveying steel pipe (4) includes a first pipe section (41) and a second pipe section (42) that are connected to each other. The first pipe section (41) is fixedly connected to the discharge end of the sludge screw pump (3), and the central axis of the first pipe section (41) is coaxial with the central axis of the sludge screw pump (3). The second pipe section (42) is located on the same vertical plane as the first pipe section (41), and the second pipe section (42) is horizontally arranged.

6. The pumping device installed in the sludge receiving pit according to claim 5, characterized in that: The conveying steel pipe (4) also includes a third pipe section (43), which is connected to the second pipe section (42). The third pipe section (43) and the second pipe section (42) are located on the same vertical plane, and the third pipe section (43) and the second pipe section (42) are set at an obtuse angle.

7. The pumping device installed in the sludge receiving pit according to claim 6, characterized in that: The diameter of the third pipe segment (43) decreases along the direction away from the second pipe segment (42).

8. The pumping device installed in the sludge receiving pit according to claim 6, characterized in that: The first pipe segment (41) and the second pipe segment (42), and the second pipe segment (42) and the third pipe segment (43) are all fixedly connected by bolts.

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