A hydraulic engineering management sludge cleaning device

Abstract

The utility model relates to a kind of water conservancy project management sludge cleaning equipment, belong to sludge cleaning equipment technical field.The water conservancy project management sludge cleaning equipment, including: sewage pump and the protective shell being set at sewage pump entrance.The broken mechanism includes the transmission shaft being fixedly connected with the sewage pump impeller, the inner wall of the protective shell is equipped with protection assembly, and the bottom end of the transmission shaft is rotatably connected in protection assembly;By setting multiple groups of staggered relative arrangement shear cutter between broken cutter and shear rod, when sundries enter shear region with water flow, moving knife rotating with broken cutter and fixed cutter on the surface of shear rod will form multiple continuous staggered shear points, produce strong tearing and cutting effect on flexible sundries instead of single direction winding force, to collapse plastic bag, fiber and so on winding object;Meanwhile, the shear structure of multiple levels staggered greatly increases effective cutting times, significantly improves broken efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of silt removal equipment, and in particular to a silt removal equipment for water conservancy project management. Background Technology

[0002] Silt removal equipment for water conservancy projects is used to remove sediment from the bottom of water bodies to maintain flow capacity and reservoir capacity. This equipment is often equipped with a sewage pump as its core suction component. Traditional sewage pumps mainly use a motor to drive a centrifugal impeller to rotate at high speed, creating negative pressure at the pump inlet, drawing in the mud-water mixture, which is then pressurized by the volute before being discharged.

[0003] When a traditional sewage pump is working, the motor drives the main shaft to rotate the impeller at high speed, creating a vacuum negative pressure at the pump inlet, which draws muddy water containing impurities into the pump body. The impeller transfers kinetic energy to the fluid, which is then pressurized by the volute before being discharged. Traditional sewage pumps are often equipped with a single rotary breaker blade, which is directly fixed to the pump main shaft and rotates synchronously with the impeller at high speed. The sharp edge of the blade cuts and crushes the sucked-in solid impurities. However, the rotating blade mainly generates a winding force rather than a shearing force on flexible objects such as plastic bags and long fibers, which can easily lead to entanglement and blockage. Utility Model Content

[0004] Therefore, it is necessary to provide a sludge cleaning device for water conservancy projects to address the problem that traditional sewage pumps are easily entangled and blocked by flexible objects.

[0005] A sludge removal device for water conservancy project management includes: a sewage pump and a protective shell installed at the inlet of the sewage pump.

[0006] The crushing mechanism includes a drive shaft fixedly connected to the impeller of the sewage pump. A protective component is installed on the inner wall of the protective shell. The bottom end of the drive shaft is rotatably connected to the protective component. Multiple crushing blades are fixedly connected to the surface of the drive shaft.

[0007] In one embodiment, the crushing blade is crescent-shaped and positioned above the protective assembly, with one end of the crushing blade away from the drive shaft contacting the inner wall of the protective housing.

[0008] In one embodiment, a plurality of shearing blades are fixedly connected to the lower surface of the breaker blade, and the cross-section of the shearing blades is "E" shaped.

[0009] In one embodiment, the protective assembly includes a mounting bracket installed on the inner wall of the protective housing, the mounting bracket being arranged in a ring shape.

[0010] In one embodiment, a positioning ring is provided inside the mounting bracket, the positioning ring is located at the center of the mounting bracket, and the drive shaft is rotatably connected to the positioning ring.

[0011] In one embodiment, a plurality of shearing rods are fixedly connected between the positioning ring and the mounting bracket. The two sides of the shearing rods are serrated, and a plurality of shearing blades are fixedly connected to the upper surface of the shearing rods. The shearing blades on the surface of the shearing rods and the shearing blades on the lower surface of the crushing blades are arranged alternately opposite each other.

[0012] In one embodiment, a plurality of isolation rods are provided between the positioning ring and the mounting bracket, and the isolation rods are arranged intersecting with the shearing rods.

[0013] In one embodiment, a plurality of first cleaning blades are fixedly connected to the surface of the drive shaft, the first cleaning blades being positioned above the crushing blades, and a plurality of second cleaning blades are fixedly connected inside the protective shell, the second cleaning blades being positioned horizontally between each set of first cleaning blades. Beneficial effects

[0014] 1. By setting multiple sets of staggered shearing blades between the crushing blade and the shearing rod, when debris enters the shearing zone with the water flow, the moving blades that rotate with the crushing blade and the fixed blades fixed on the surface of the shearing rod will form multiple continuous staggered shearing points, which will generate a strong tearing and cutting effect on flexible debris instead of a single-direction winding force, thereby breaking down entangled materials such as plastic bags and fibers; at the same time, the multi-stage staggered shearing structure greatly increases the effective number of cuts, effectively disperses the single impact load, and significantly improves crushing efficiency and reliability. 2. By setting a first cleaning blade and a second cleaning blade above the crusher, after the debris is initially processed by the crusher, the residual long fibers or flexible materials moving with the water flow will be subjected to the cross-cutting action of the two sets of cleaning blades again during the ascent, further cleaning the debris that may be entangled on the drive shaft, further reducing the blockage phenomenon, improving the adaptability to complex sludge and the continuous operation capability of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the crushing mechanism of this utility model; Figure 4This is an exploded view of the crushing mechanism of this utility model; Figure 5 This is a schematic diagram of the overall structure of the protective component of this utility model.

[0017] Figure label: 100. Sewage pump; 200. Protective housing; 300. Crushing mechanism; 310. Drive shaft; 320. Protective component; 321. Mounting bracket; 322. Positioning ring; 323. Shearing rod; 324. Isolation rod; 330. Crushing blade; 331. Shearing blade; 340. First cleaning blade; 341. Second cleaning blade. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined with Figure 1 - Figure 5 This utility model describes a silt removal device for water conservancy engineering management.

[0020] In one embodiment, a sludge removal device for water conservancy project management includes: a sewage pump 100 and a protective shell 200 disposed at the inlet of the sewage pump 100.

[0021] The crushing mechanism 300 includes a drive shaft 310 fixedly connected to the impeller of the sewage pump 100, a protective component 320 installed on the inner wall of the protective shell 200, the bottom end of the drive shaft 310 being rotatably connected to the protective component 320, and a plurality of crushing blades 330 being fixedly connected to the surface of the drive shaft 310.

[0022] The sewage pump 100 in this device is an SWQ sewage pump 100, which mainly consists of a submersible motor, pump body, twisted channel impeller and protective grid. Its working principle is that the motor shaft directly drives the open impeller to rotate at high speed, forming a negative pressure in the volute to draw in sewage containing solid particles and fibers. The solid particles are discharged together with the fluid under the action of centrifugal force. Throughout the entire process, the pump body is always submerged underwater, and the double mechanical seal structure effectively prevents liquid from seeping into the motor chamber.

[0023] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the crusher blade 330 is crescent-shaped and positioned above the protective assembly 320. The end of the crusher blade 330 furthest from the drive shaft 310 contacts the inner wall of the protective housing 200. Multiple shear blades 331 are fixedly connected to the lower surface of the crusher blade 330, and each shear blade 331 has an "E"-shaped cross-section. The protective assembly 320 includes a mounting bracket 321 mounted on the inner wall of the protective housing 200, and the mounting bracket 321 is annularly arranged. A positioning ring 322 is located inside the mounting bracket 321, at its center. The drive shaft 310 is rotatably connected to the positioning ring 322. Multiple shearing rods 323 are fixedly connected between the positioning ring 322 and the mounting bracket 321. The shearing rods 323 have serrated edges on both sides, and multiple shearing blades 331 are fixedly connected to the upper surface of each shearing rod 323. The shearing blades 331 on the surface of the shearing rods 323 are staggered and opposite to the shearing blades 331 on the lower surface of the crusher blade 330. Multiple isolation rods 324 are provided between the positioning ring 322 and the mounting bracket 321, and the isolation rods 324 and the shearing rods 323 are arranged in a cross pattern.

[0024] In this embodiment, the shearing force generated by the rotating blade 330 will directly break large pieces of sludge into small pieces, which will be sucked into the sewage pump 100. Some hard debris will get stuck between the shearing rods 323 when passing through the blade 330. At this time, the rotating blade 330 will break the hard debris into small pieces, which will be sucked into the sewage pump 100 along with the sludge. Materials that are too hard, such as large stones and iron blocks, cannot be broken into small pieces by the shearing blade 331. They will be directly blocked outside the mounting frame 321 by the isolation rod 324 and the shearing rod 323 and will not be sucked into the shearing range of the blade 330. It should be noted that this device, by setting a shearing blade 331 between the crushing blade 330 and the shearing rod 323, works in conjunction with the first cleaning blade 340 and the second cleaning blade 341 to fully crush and cut the flexible material sucked into the sewage pump 100, thereby preventing the flexible material from affecting the sewage pump 100 after entering the sewage pump 100. The crushing mechanism 300 of this device is set at the inlet of the sewage pump 100, and only the drive shaft 310 needs to be connected to the center of the impeller, which will not affect the sewage pump 100. At the same time, the shearing blade 331 of this device is set between the crushing blade 330 and the shearing rod 323, and can also cut hard materials. The specific material can be set according to the user's needs, and will not affect the normal use of the sewage pump 100.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, multiple sets of first cleaning blades 340 are fixedly connected to the surface of the drive shaft 310. The first cleaning blades 340 are positioned above the crushing blade 330. Multiple second cleaning blades 341 are fixedly connected inside the protective shell 200. The second cleaning blades 341 are positioned horizontally between each set of first cleaning blades 340.

[0026] In this embodiment, after the flexible material is broken by the shearing blade 331 between the crushing blade 330 and the shearing rod 323, it will move into the sewage pump 100 along with the sludge. A portion of the flexible material may move towards the surface of the drive shaft 310. At this time, this portion of the flexible material will be confined between multiple sets of first cleaning blades 340. As the first cleaning blade 340 rotates, it cooperates with the second cleaning blade 341 to shear the portion of the flexible material again, and make it completely enter the sewage pump 100 along with the sludge and be discharged.

[0027] Working principle: Place this device in the water area where sludge needs to be cleaned and connect the outlet of the sewage pump 100 to the connecting pipe. Then turn on the power of the sewage pump 100. The sewage pump 100 will start immediately, suck the sludge into the impeller through the inlet, pressurize it and discharge it from the outlet through the connecting pipe. When the sewage pump 100 starts operating, the impeller and the drive shaft 310 rotate synchronously, driving the crusher 330 mounted on the drive shaft 310 to rotate at high speed. After the sludge containing various impurities enters the pump body through the protective shell 200, it is first processed in the primary crushing zone formed by the crusher 330 and the fixed shearing rod 323: large sludge agglomerates and hard debris such as plastic pipes and branches are crushed into smaller particles here, and then enter the pump body with the water flow and are smoothly discharged; however, flexible materials such as plastic bags and long fibers may not be cut immediately when passing through the primary crushing zone, but will become entangled in the gap between the rotating crusher 330 and the stationary shearing rod 323. With the continuous rotation of the crusher 330, these flexible materials will be subjected to strong mechanical tearing and will be pulled apart or torn. Most of the pre-treated flexible fragments will enter the pump body with the mud-water mixture, but a small amount of residue will still extend upward along the surface of the drive shaft 310 and pass through the first cleaning blade 340 and the second cleaning blade 341 to perform secondary or even multiple shearing and crushing on the continuously rising entangled flexible material. This multi-stage collaborative cleaning mechanism ensures that the residual flexible material is completely decomposed and eventually enters the pump body with the mud-water mixture and is discharged smoothly.

[0028] It should be noted that the sewage pump 100 and the protective shell 200 mentioned above are both devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the sewage pump 100 can be powered by the built-in power supply or by the mains power. The specific power supply method can be selected according to the situation, which will not be elaborated here.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A silt removal device for water conservancy project management, characterized in that, include: Sewage pump (100) and protective housing (200) provided at the inlet of sewage pump (100); The crushing mechanism (300) includes a drive shaft (310) fixedly connected to the impeller of the sewage pump (100), a protective component (320) is installed on the inner wall of the protective shell (200), the bottom end of the drive shaft (310) is rotatably connected to the protective component (320), and a plurality of crushing blades (330) are fixedly connected to the surface of the drive shaft (310).

2. The silt removal equipment for water conservancy project management according to claim 1, characterized in that, The crushing blade (330) is crescent-shaped and is positioned above the protective assembly (320). One end of the crushing blade (330) away from the drive shaft (310) is in contact with the inner wall of the protective shell (200).

3. The silt removal equipment for water conservancy project management according to claim 1, characterized in that, The lower surface of the crusher (330) is fixedly connected to multiple sets of shearing blades (331), and the cross-section of the shearing blades (331) is "E" shaped.

4. The silt removal equipment for water conservancy project management according to claim 1, characterized in that, The protective component (320) includes a mounting bracket (321) installed on the inner wall of the protective housing (200), the mounting bracket (321) being arranged in a ring.

5. The silt removal equipment for water conservancy project management according to claim 4, characterized in that, The mounting bracket (321) is provided with a positioning ring (322) inside. The positioning ring (322) is located at the center of the mounting bracket (321). The drive shaft (310) is rotatably connected to the positioning ring (322).

6. The silt removal equipment for water conservancy project management according to claim 5, characterized in that, Multiple shearing rods (323) are fixedly connected between the positioning ring (322) and the mounting bracket (321). The two sides of the shearing rod (323) are serrated. Multiple sets of shearing blades (331) are fixedly connected to the upper surface of the shearing rod (323). The shearing blades (331) on the surface of the shearing rod (323) and the shearing blades (331) on the lower surface of the crushing blade (330) are arranged alternately and oppositely.

7. The silt removal equipment for water conservancy project management according to claim 6, characterized in that, Multiple isolation rods (324) are provided between the positioning ring (322) and the mounting bracket (321), and the isolation rods (324) are arranged crosswise with the shearing rods (323).

8. The silt removal equipment for water conservancy project management according to claim 1, characterized in that, Multiple sets of first cleaning blades (340) are fixedly connected to the surface of the drive shaft (310). The first cleaning blades (340) are positioned above the crushing blade (330). Multiple second cleaning blades (341) are fixedly connected inside the protective shell (200). The second cleaning blades (341) are positioned horizontally between each set of first cleaning blades (340).

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