Submersible sewage pump for dredging coal mine sump

Abstract

The utility model discloses a submersible sewage pump for dredging a coal mine sump. The submersible sewage pump comprises a main body, a crushing mechanism and a water inlet seat, the bottom of the body is provided with a water inlet, and the side of the body is provided with a water outlet. A crushing mechanism is arranged above the water inlet in the main body, the crushing mechanism comprises a motor and a rotating disc, and crushing blades which are elastically connected are arranged on the rotating disc. The main body is provided with a sealing bin corresponding to the motor and a water bin corresponding to the rotating disc, and the bottom of the water bin is provided with a water inlet. A detachable water inlet seat is arranged at the water inlet, and a plurality of filter holes are formed in the water inlet seat. The smashing mechanism can refine impurities entering the main body, and blockage of a water path in the main body caused by particle accumulation is prevented.

Description

Technical Field

[0001] This utility model relates to the field of dredging equipment technology, and in particular to a submersible sewage pump for dredging coal mine water tanks. Background Technology

[0002] Coal mine water sump is a key facility in the underground drainage system of a coal mine, mainly used to collect, settle, and temporarily store mine water, providing stable operating conditions for drainage equipment. Its function is similar to an "underground reservoir," primarily used to prevent water hazards and ensure safe mine production. Submersible sewage pumps are needed to drain excess water from the coal mine water sump. Submersible sewage pumps are submersible sewage pumps, particularly suitable for conveying liquids containing hard solids, fibrous materials, and especially dirty, viscous, or slippery liquids. Because they operate submerged in liquid, submersible sewage pumps can be directly installed inside the coal mine water sump.

[0003] Conventional submersible sewage pumps generally lack a mechanism for crushing and separating impurities. To prevent clogging, a single-layer filter screen is usually installed at the inlet. The water in coal mine sump typically contains gravel or other impurities of varying sizes. When larger particles or a certain amount of impurities accumulate in the submersible sewage pump, clogging problems can easily occur. Utility Model Content

[0004] To overcome the technical problem of clogging in existing submersible sewage pumps, this utility model provides a submersible sewage pump for dredging coal mine water tanks.

[0005] To achieve the above objectives, this utility model proposes a submersible sludge pump for dredging coal mine water tanks, comprising a main body, a crushing mechanism, and a water inlet base. The main body has a water inlet at its bottom and a water outlet on its side. Inside the main body, above the water inlet, is a crushing mechanism comprising a motor and a rotating disk, with elastically connected crushing blades on the rotating disk. A sealed chamber is located on the main body corresponding to the motor, and a water tank is located on the main body corresponding to the rotating disk, with a water inlet at the bottom of the water tank. A detachable water inlet base is provided at the water inlet, and the water inlet base has multiple filter holes.

[0006] Furthermore, the output end of the motor is provided with a rotating shaft, the end of which passes through the bottom surface of the sealing chamber and is fixedly connected to the rotating disk by fasteners. A mechanical seal is provided at the bottom of the sealing chamber corresponding to the position of the rotating shaft.

[0007] Furthermore, the rotating disk has multiple evenly spaced wave plates arranged circumferentially on the side away from the motor. A vertical shaft is provided on the rotating disk at the center of rotation of the multiple wave plates, extending towards the water inlet, and pulverizing blades are provided on the vertical shaft.

[0008] Furthermore, a vertical shaft passes through the rotation center of the crushing blades, and multiple evenly spaced raised ridges are provided on the outer peripheral wall of the vertical shaft. Sliding grooves are provided on the crushing blades corresponding to the raised ridges. An elastic body is provided between the crushing blades and the rotating disk, and a threaded locking nut is provided at the end of the vertical shaft near the water inlet, corresponding to the crushing blades.

[0009] Furthermore, the elastic body is a spring, and the spring has an integrated panel on the outer peripheral wall of the vertical shaft. The crushing blade has an integrated panel at one end of the spring, and the vertical shaft has an integrated limiting plate at the other end of the spring. The limiting plate is located between the spring and the rotating disk.

[0010] Furthermore, moving downwards from the inlet, the inlet seat sequentially includes an integrated connecting cylinder, a sloping side surface, and a spherical bottom surface. The filter holes include first through holes and second through holes. Multiple first through holes with equal spacing are provided circumferentially on the sloping side surface, and multiple second through holes arranged in an array are provided on the spherical bottom surface.

[0011] Furthermore, the inner wall of the connecting cylinder near the inlet end is provided with internal threads, and the outer wall is provided with anti-slip texture. The outer peripheral wall of the main body at the inlet end is provided with external threads that mate with the internal threads.

[0012] Furthermore, the main body has multiple support legs on its outer periphery, with the support legs evenly spaced. The end of each support leg closest to the main body is connected to the main body via a first damping pivot, which has a first knob for adjusting the tension.

[0013] Furthermore, a base plate is provided at the end of the support leg away from the main body, and multiple symmetrically distributed positioning holes are provided on the base plate. A second damping pivot is provided on the support leg corresponding to the position of the base plate, and a second knob for adjusting the tension is provided on the second damping pivot.

[0014] The beneficial effects of this invention are as follows: The crushing mechanism can break down impurities entering the main body, allowing the crushed impurities to be discharged with the water flow. When larger impurities enter the main body, they compress the elastically connected crushing blades and move inward, creating sufficient space within the main body for the impurities to flow out with the water from the outlet, preventing damage to the crushing blades or blockage of the water passages within the main body. The filter holes on the water inlet seat can perform preliminary filtration of the water entering the main body, promptly blocking larger impurities outside the water inlet seat and preventing blockage of the water passages inside the main body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the main body of this utility model;

[0018] Figure 3 This is a schematic diagram of the crushing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the support leg of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the water inlet seat of this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Main body;

[0023] 11. Inlet; 12. Outlet; 13. Sealed chamber; 14. Water tank;

[0024] 131. Mechanical seal; 141. External thread;

[0025] 2. Water inlet seat;

[0026] 21. Connecting cylinder; 22. Sloping side surface; 23. Spherical bottom surface;

[0027] 211. Internal thread; 212. Anti-slip texture; 221. First through hole; 231. Second through hole;

[0028] 3. Crushing mechanism;

[0029] 31. Motor; 32. Rotary disc; 33. Crushing blades; 34. Locking nut;

[0030] 311. Rotating shaft; 321. Wave plate; 322. Vertical shaft; 323. Raised ridge; 324. Limiting plate; 325. Spring; 331. Panel;

[0031] 4. Supporting leg;

[0032] 41. First damping shaft; 42. Second damping shaft; 43. Base plate;

[0033] 431. Positioning hole. Detailed Implementation

[0034] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0035] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1-5 As shown in the figure, this utility model proposes a submersible sludge pump for dredging coal mine water tanks, including a main body 1, a crushing mechanism 3, and a water inlet seat 2. The bottom of the main body 1 is provided with a water inlet 11, and the side of the main body 1 is provided with a water outlet 12. Inside the main body 1, above the water inlet 11, is a crushing mechanism 3, which includes a motor 31 and a rotating disk 32.

[0037] The rotating disk 32 has multiple evenly spaced corrugated plates 321 arranged circumferentially on the side away from the motor 31. A vertical shaft 322 is located at the rotation center of the corrugated plates 321 on the rotating disk 32, extending towards the water inlet 11. Elastically connected crushing blades 33 are mounted on the vertical shaft 322. When the motor 31 drives the rotating disk 32, the corrugated plates 321 can accelerate the water flow in the water tank 14. The rotating disk 32 has elastically connected crushing blades 33. The vertical shaft 322 passes through the rotation center of the crushing blades 33, and multiple evenly spaced protrusions 323 are provided on the outer peripheral wall of the vertical shaft 322. The crushing blades 33 have grooves corresponding to the positions of the protrusions 323. An elastic body is provided between the crushing blades 33 and the rotating disk 32. A threaded locking nut 34 is provided at the end of the vertical shaft 322 near the water inlet 11 corresponding to the crushing blades 33. The engagement of the protrusion 323 and the groove allows the crushing blade 33 to remain relatively fixed circumferentially to the vertical shaft 322, enabling the torque of the motor 31 to be transmitted to the crushing blade 33. Under the action of the elastic body, the crushing blade 33 tends to move closer to the locking nut 34 as it slides along the length of the vertical shaft 322.

[0038] When the elastic body is a spring 325, the spring 325 is provided on the outer peripheral wall of the vertical shaft 322. The crushing blade 33 is provided with an integrated panel 331 at one end corresponding to the spring 325, and the vertical shaft 322 is provided with an integrated limiting plate 324 at the other end corresponding to the spring 325. The limiting plate 324 is located between the spring 325 and the rotating disk 32. In the length direction of the vertical shaft 322, the limiting plate 324 is located below the wave plate 321. Under the action of the limiting plate 324, the crushing blade 33 can be prevented from directly colliding with the wave plate 321. When a large impurity block enters the body 1, the impurity block squeezes the elastically connected crushing blade 33 and moves it away from the water inlet 11, so that enough space is made inside the body 1 for the impurity block to flow out from the water outlet 12. This protects the crushing blade 33 and other components, and keeps the internal water passage of the body 1 unobstructed.

[0039] Motor 31 drives rotating disk 32 to rotate, which in turn drives crushing blades 33 to rotate. Crushing blades 33 pulverize and refine the impurity particles entering the main body 1, causing the pulverized particles to flow out from outlet 12 with the water flow. A sealed chamber 13 is located on the main body 1 corresponding to the position of motor 31, and a water chamber 14 is located on the main body 1 corresponding to the position of rotating disk 32. A water inlet 11 is located at the bottom of the water chamber 14. A rotating shaft 311 is located at the output end of the machine. The end of the rotating shaft 311 away from motor 31 passes through the bottom surface of the sealed chamber 13 and is fixedly connected to the rotating disk 32 by fasteners. A mechanical seal 131 is located at the bottom of the sealed chamber 13 corresponding to the position of the rotating shaft 311. Under the action of the mechanical seal 131, motor 31 can continuously apply torque to the rotating shaft 311 within the water chamber 14, while maintaining a dry working environment within the sealed chamber 13, ensuring the normal operation of motor 31.

[0040] A detachable inlet seat 2 is provided at the inlet 11, and the inlet seat 2 has multiple filter holes. Wastewater containing impurities in the coal mine water tank 14 enters the main body 1 through the inlet 11 at the bottom. The inlet 11 is equipped with a detachable inlet seat 2. The filter holes on the inlet seat 2 can intercept large solid particles (such as stones and coal slag) to prevent large impurities from directly entering the pump body and causing blockage or damage, while allowing water and fine particles to pass through.

[0041] Moving downwards from the inlet 11, the inlet base 2 sequentially includes an integrated connecting cylinder 21, a sloping side surface 22, and a spherical bottom surface 23. The filter holes include a first through hole 221 and a second through hole 231. The inner wall of the connecting cylinder 21 near the inlet 11 has an internal thread 211, and the outer wall has anti-slip textures 212. The outer peripheral wall of the main body 1 at the inlet 11 end has an external thread 141 that mates with the internal thread 211. The engagement of the internal thread 211 and the external thread 141 allows for quick assembly or disassembly of the inlet base 2 and the main body 1, facilitating maintenance or replacement of components. The sloping side surface 22 has multiple equally spaced first through holes 221, and the spherical bottom surface 23 has multiple arrayed second through holes 231. The sloping side surface 22 and the spherical bottom surface 23 increase the filtration area of ​​the inlet base 2 while preventing impurities from adhering to its surface. Water flow and smaller particles of impurities can pass through the first through hole 221 or the second through hole 231, while larger particles of impurities cannot pass through the first through hole 221 or the second through hole.

[0042] Submersible pumps typically need to be installed at the bottom of a coal mine water sump 14 to maintain stable operation. However, the bottom of a conventional coal mine water sump 14 is usually uneven. Multiple support legs 4 are evenly spaced along the outer periphery of the main body 1. The end of each support leg 4 closest to the main body 1 is connected to the main body 1 via a first damping shaft 41, which has a first knob for adjusting tension. The support legs 4 are rotatably connected to the main body 1 via the first damping shaft 41, allowing each support leg 4 to flexibly adjust its relative angle to the main body 1. When the relative angle between each support leg 4 and the main body 1 is determined, tightening the first knob will fix the support legs 4 relative to the main body 1, allowing the main body 1 to be stably assembled on the bottom of the coal mine water sump 14. A base plate 43 is located at the end of each support leg 4 furthest from the main body 1, and multiple symmetrically distributed positioning holes 431 are provided on the base plate 43. Anchor screws or other types of fasteners are installed in the positioning holes 431 to keep the base plate 43 relatively fixed to the bottom surface of the coal mine water sump 14. A second damping shaft 42 is provided at the position of the support leg 4 corresponding to the base plate 43. The second damping shaft 42 is equipped with a second knob for adjusting the tightness. Tightening the second knob will keep the base plate 43 and the support leg 4 relatively fixed. The relative height of the base plate 43 and the support leg 4 can be adjusted by the second damping shaft 42, so that the base plate 43 fits better with the bottom surface of the coal mine water tank 14, thereby achieving relative stability between the submersible pump and the bottom of the coal tank.

[0043] The working principle of this invention is as follows: The motor 31 is started, and the rotating shaft 311 drives the rotating disk 32 to rotate. The wave plate 321 rotates with the rotating disk 32, accelerating the water in the water tank 14, causing the water flow to carry tiny impurity particles quickly into the inlet 11 and out of the outlet 12. The pulverizing blades 33 rotate with the rotating disk 32, pulverizing and refining the impurity blocks in the water tank 14. When larger impurity blocks appear, they compress the pulverizing blades 33, causing them to move away from the inlet 11, creating sufficient space in the water tank 14 for the impurity blocks to flow out of the outlet 12 with the water flow.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A submersible sewage pump for dredging coal mine water tanks, characterized in that, include: The main body (1) has a water inlet (11) at its bottom and a water outlet (12) on its side. The crushing mechanism (3) is provided inside the main body (1) above the water inlet (11). The crushing mechanism (3) includes a motor (31) and a rotating disk (32). The main body (1) is provided with a sealing chamber (13) corresponding to the position of the motor (31), and a water chamber (14) is provided in the main body (1) corresponding to the position of the rotating disk (32). The water inlet (11) is provided at the bottom of the water chamber (14). The rotating disk (32) is provided with elastically connected crushing blades (33). Water inlet seat (2), the water inlet (11) is provided with a detachable water inlet seat (2), the water inlet seat (2) is provided with multiple filter holes.

2. The submersible sewage pump for dredging coal mine water tanks as described in claim 1, characterized in that, The output end of the motor (31) is provided with a rotating shaft (311); the end of the rotating shaft (311) away from the motor (31) passes through the bottom surface of the sealing chamber (13) and is fixedly connected to the rotating disk (32) by fasteners; the bottom of the sealing chamber (13) is provided with a mechanical seal (131) corresponding to the position of the rotating shaft (311).

3. The submersible sewage pump for dredging coal mine water tanks as described in claim 1, characterized in that, The rotating disk (32) has a plurality of evenly spaced wave plates (321) on the circumferential direction of the side away from the motor (31); the rotating disk (32) has a vertical shaft (322) at the rotation center of the plurality of wave plates (321), the vertical shaft (322) extends toward the water inlet (11), and the pulverizing blades (33) are provided on the vertical shaft (322).

4. The submersible sewage pump for dredging coal mine water tanks as described in claim 3, characterized in that, The vertical shaft (322) passes through the rotation center of the crushing blade (33). The outer peripheral wall of the vertical shaft (322) is provided with multiple evenly spaced protrusions (323). The crushing blade (33) is provided with a sliding groove corresponding to the position of the protrusions (323). An elastic body is provided between the crushing blade (33) and the rotating disk (32). The end of the vertical shaft (322) near the water inlet (11) is provided with a threaded locking nut (34) corresponding to the crushing blade (33).

5. The submersible sewage pump for dredging coal mine water tanks as described in claim 4, characterized in that, The elastic body is a spring (325), and the spring (325) is provided on the outer peripheral wall of the vertical shaft (322). The crushing blade (33) is provided with an integrated panel (331) at one end of the spring (325), and the vertical shaft (322) is provided with an integrated limiting plate (324) at the other end of the spring (325). The limiting plate (324) is located between the spring (325) and the rotating disk (32).

6. The submersible sewage pump for dredging coal mine water tanks as described in claim 1, characterized in that, Along the water inlet (11) downwards, the water inlet base (2) sequentially includes an integrated connecting cylinder (21), a sloping side surface (22), and a spherical bottom surface (23); the filter holes include a first through hole (221) and a second through hole (231); the sloping side surface (22) is provided with a plurality of first through holes (221) with the same spacing in the circumferential direction, and the spherical bottom surface (23) is provided with a plurality of second through holes (231) arranged in an array.

7. The submersible sewage pump for dredging coal mine water tanks as described in claim 6, characterized in that, The inner wall of the connecting cylinder (21) near the water inlet (11) is provided with an internal thread (211), and the outer wall is provided with anti-slip texture (212); the outer peripheral wall of the main body (1) at the end of the water inlet (11) is provided with an external thread (141) that matches the internal thread (211).

8. The submersible sewage pump for dredging coal mine water tanks as described in claim 1, characterized in that, The main body (1) has multiple support legs (4) on its outer periphery, and the multiple support legs (4) are evenly spaced; one end of the support leg (4) near the main body (1) is connected to the main body (1) through a first damping shaft (41), and the first damping shaft (41) is provided with a first knob for adjusting the tightness.

9. The submersible sewage pump for dredging coal mine water tanks as described in claim 8, characterized in that, The support leg (4) has a base plate (43) at one end away from the main body (1), and the base plate (43) has a plurality of symmetrically distributed positioning holes (431); the support leg (4) has a second damping shaft (42) at the position corresponding to the base plate (43), and the second damping shaft (42) has a second knob for adjusting the tightness.

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