An environmentally friendly deep-water dredging suction device

Abstract

The invention discloses an environment-friendly deep-water dredging suction device, comprising a deep dredging pump, an overflow cover, a rotating shaft, a fixing seat and an underwater driving device, wherein the deep dredging pump is fixedly connected above the overflow cover, and a first fixing plate and a second fixing plate are respectively connected to left and right ends below the overflow cover, a rotating shaft is horizontally installed between the first fixing plate and the second fixing plate, and the rotating shaft consists of a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is rotatably connected to the first fixing plate, and the other end of the first rotating shaft is fixedly connected to the second rotating shaft, the diameter of the first rotating shaft is smaller than the diameter of the second rotating shaft, a plurality of blade teeth are arranged on the outer wall of the rotating shaft, the blade teeth are evenly distributed on the outer wall of the rotating shaft, the blade teeth on the first rotating shaft are flush with the outer edges of the blade teeth on the second rotating shaft, an underwater driving device is installed inside the second rotating shaft, the underwater driving device is fixed by the fixing seat, the fixing seat is fixedly connected to the second fixing plate, and a floating oil seal device is installed on the output end of the underwater driving device.

Description

Technical Field

[0001] The invention relates to the technical field of dredging, and in particular to an environmentally friendly deep-water dredging cutter suction device. Background Art

[0002] At present, there are a large number of hydropower stations and large dams in my country. As they have been in operation for many years, due to the flushing and gathering of upstream water, a large amount of silt has accumulated in front of the station (dam) and the water depth has become shallower. In the long run, the power station will be scrapped and unable to work normally. The existing silt desilting equipment, the mud pump extraction depth is generally less than 15 meters, and the two-stage pump does not exceed 30 meters. The pump has low deep suction efficiency, poor sealing, short service life, and is not suitable for deep water operations. Summary of the invention

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an environmentally friendly deep-water dredging suction device to solve the problems raised in the background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides an environment-friendly deep-water dredging suction device, comprising a deep dredging pump, an overflow cover, a rotating shaft, a fixing seat and an underwater driving device, wherein the deep dredging pump is fixedly connected above the overflow cover, a water outlet interface is arranged at the top center of the overflow cover, a suction port is arranged below the deep dredging pump, a discharge port is arranged on one side of the deep dredging pump, the suction port is sealedly connected to the water outlet interface, a first fixing plate and a second fixing plate are connected to the left and right ends below the overflow cover respectively, a rotating shaft is horizontally installed between the first fixing plate and the second fixing plate, the rotating shaft consists of a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is rotatably connected to the first fixing plate, the other end of the first rotating shaft is fixedly connected to the second rotating shaft, and the first rotating shaft is fixedly connected to the second rotating shaft. The diameter is smaller than the diameter of the second rotating shaft, a plurality of blade teeth are arranged on the outer wall of the rotating shaft, the blade teeth are evenly distributed on the outer wall of the rotating shaft, the blade teeth on the first rotating shaft are flush with the outer edges of the blade teeth on the second rotating shaft, the second rotating shaft is in the shape of a circular cover, a gap is left between the side of the second rotating shaft away from the first rotating shaft and the second fixed plate, an underwater driving device is installed inside the second rotating shaft, the underwater driving device is fixed by the fixing seat, the fixing seat is fixedly connected to the second fixing plate, a floating oil sealing device is installed on the output end of the underwater driving device, the output end of the underwater driving device is connected to the side wall of the second rotating shaft, the other end of the underwater driving device is connected to the side wall of the overflow cover, and the underwater driving device drives the rotating shaft to rotate.

[0006] Preferably, the blade teeth are arranged obliquely on the rotating shaft, and the blade teeth on the first rotating shaft are inclined in opposite directions to the blade teeth on the second rotating shaft.

[0007] Preferably, the first rotating shaft is connected to the first fixing plate via a bearing, and the bearing is installed in a bearing support device.

[0008] Preferably, the fixing seat is cylindrical, one end of the fixing seat is fixed to the underwater driving device through a flange, and the other end of the fixing seat is connected to the second fixing plate. A through hole is opened in the middle of the second fixing plate, and the underwater driving device is passed through and fixed in the through hole.

[0009] Preferably, reinforcing ribs are provided on the overflow cover.

[0010] Preferably, a lifting ring is welded on the overflow cover.

[0011] Preferably, the underwater driving device is a hydraulic motor driving device.

[0012] Preferably, there are two rotating shafts, and the first rotating shaft and the second rotating shaft of the two rotating shafts are arranged alternately.

[0013] Preferably, a rotation speed sensor is installed on the rotating shaft.

[0014] The beneficial effects of the present invention are:

[0015] 1. The environmentally friendly deep-water dredging suction device of the present invention effectively combines a deep dredging pump, an overflow cover, an underwater drive device and a floating oil seal technology, has a simple structure, and the extraction depth can reach 100 meters underwater. It has high extraction concentration, high extraction efficiency, good sealing, and long service life. It also has environmental protection effects and is suitable for deep-water operations. It has good effects and strong practicality.

[0016] 2. The present invention installs a floating oil seal device at the output end of the underwater driving device and utilizes the floating oil seal sealing technology to solve the problem that the current ordinary driving device cannot adapt to operations at a water depth greater than 30 meters due to reverse sealing. After the floating oil seal device is installed, the pressure resistance value of the underwater driving device can reach 5MPa, preventing external high-pressure water from entering the underwater driving device.

[0017] 3. The present invention achieves environmental dredging by providing an overflow hood, which covers the stirred sludge to ensure that as much sludge as possible enters the deep dredging pump, reducing turbidity in the surrounding waters and achieving environmental dredging.

[0018] 4. In the present invention, the first rotating shaft, the second rotating shaft and the blade teeth work together to stir and cut the underwater sludge. The stirring and cutting effect on the sludge is better by setting the diameter of the first rotating shaft smaller than that of the second rotating shaft and the sum of the diameter of the first rotating shaft and the length of the blade teeth to be consistent with the sum of the diameter of the second rotating shaft and the length of the blade teeth.

[0019] 5. The present invention fixes the underwater driving device and the rotating shaft by arranging a fixing seat and a fixing plate. The underwater driving device and the fixing seat are both arranged in the internal space of the second rotating shaft. The structure is compact and reasonable, space is saved, and transportation is convenient. The sludge can be effectively isolated so that the sludge cannot contact the underwater driving device, thereby protecting the underwater driving device.

[0020] 6. The overflow cover of the present invention is provided with reinforcing ribs to increase the overall strength of the overflow cover, and the overflow cover is provided with lifting rings to facilitate the lifting work of the device before and after operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A structural schematic diagram (cross-sectional view) of an environmentally friendly deep-water dredging suction device provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0024] Figure 3 A bottom view of an environmentally friendly deep-water dredging suction device provided in an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-deep dredging pump, 2-overflow cover, 3-rotating shaft, 4-fixed seat, 5-underwater driving device, 6-knife teeth, 7-floating oil seal device, 8-bearing, 9-bearing support device, 11-suction port, 12-discharge port, 21-first fixed plate, 22-second fixed plate, 31-first rotating shaft, 32-second rotating shaft, 51-output end, 221-water outlet interface, 201-lifting ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Example:

[0030] like Figure 1-3 As shown, the present invention provides an environmentally friendly deep-water dredging suction device, comprising a deep dredging pump 1, an overflow cover 2, a rotating shaft 3, a fixing seat 4 and an underwater driving device 5. The deep dredging pump 1 is fixedly connected above the overflow cover 2 by bolts, and the overflow cover 2 serves as a cover for the stirred sludge to ensure that as much stirred sludge as possible enters the deep dredging pump 1, thereby reducing turbidity in surrounding waters and playing a role in environmental dredging.

[0031] A water outlet interface 221 is provided at the top center of the overflow hood 2, and a suction port 11 is provided below the deep silt removing pump 1. The suction port 11 is sealed and connected to the water outlet interface 221. Under the action of the deep silt removing pump 1, the stirred sludge reaches the suction port 11 through the water outlet interface 221 and is sucked into the deep silt removing pump 1. A discharge port 12 is provided on one side of the deep silt removing pump 1, and the extracted sludge is discharged to a designated location on land through the discharge port 12 and a pipeline.

[0032] A first fixed plate 21 and a second fixed plate 22 are welded to the left and right ends below the overflow cover 2, respectively. A rotating shaft 3 is horizontally installed between the first fixed plate 21 and the second fixed plate 22. The rotating shaft 3 consists of a first rotating shaft 31 and a second rotating shaft 32. One end of the first rotating shaft 31 is rotatably connected to the first fixed plate 21, and the other end of the first rotating shaft 31 is fixedly connected to the second rotating shaft 32. The diameter of the first rotating shaft 31 is smaller than the diameter of the second rotating shaft 32. A plurality of blade teeth 6 are arranged on the outer wall of the rotating shaft 3. The blade teeth 6 are evenly distributed on the outer wall of the rotating shaft 3. The blade teeth 6 are used to complete the stirring and cutting effect on the bottom silt. The blade teeth 6 on the first rotating shaft 31 are flush with the outer edges of the blade teeth 6 on the second rotating shaft 3, thereby ensuring that the rotation radius of the entire rotating shaft is consistent during operation.

[0033] The second rotating shaft 32 is in the shape of a circular cover, and a gap is left between the side of the second rotating shaft 32 away from the first rotating shaft 31 and the second fixed plate 22. An underwater driving device 5 is installed inside the second rotating shaft 32. The underwater driving device 5 is a hydraulic motor driving device. The underwater driving device 5 is fixed by the fixing seat 4, and the fixing seat 4 is welded on the second fixed plate 22. A floating oil seal device 7 is installed on the output end 51 of the underwater driving device 5. After the floating oil seal device 7 is installed, the pressure resistance value of the underwater driving device 5 can reach 5Mpa, which prevents external high-pressure water from entering the underwater driving device 5. The output end 51 of the underwater driving device 5 is connected to the side wall of the second rotating shaft 32, and the other end of the underwater driving device 5 is connected to the second fixed plate 22. The underwater driving device 5 drives the rotating shaft 3 to rotate.

[0034] Furthermore, the blade teeth 6 are tiltedly arranged on the rotating shaft 3, and the blade teeth 6 on the first rotating shaft 31 and the blade teeth 6 on the second rotating shaft 32 are tilted in opposite directions. This arrangement has a better cutting effect on the sludge and a higher cutting efficiency.

[0035] Furthermore, the first rotating shaft 31 is connected to the first fixing plate 21 via a bearing 8 , and the bearing 8 is installed in a bearing support device 9 .

[0036] Furthermore, the fixing seat 4 is cylindrical, one end of the fixing seat 4 is fixed with the underwater driving device 5 through a flange, and the other end of the fixing seat 4 is connected to the second fixing plate 22. A through hole is opened in the middle of the second fixing plate 22, and the underwater driving device 5 is passed through and fixed in the through hole.

[0037] Furthermore, the overflow cover 2 is provided with reinforcing ribs (not shown in the figure) to increase the strength of the overflow cover.

[0038] Furthermore, a lifting ring 201 is welded on the overflow cover 22 to facilitate lifting after the dredging work is completed.

[0039] Furthermore, there are two rotating shafts 3 , and the first rotating shaft 31 and the second rotating shaft 32 of the two rotating shafts 3 are arranged in a staggered manner.

[0040] Furthermore, a rotation speed sensor (not shown) is installed on the rotating shaft 3 to continuously monitor the rotation speed value, and when the rotation speed exceeds the set value, an alarm is issued.

[0041] Working principle: When working, the environmentally friendly deep-water dredging suction device is extended to the deep water area, and the shaft 3 starts to rotate under the drive of the underwater driving device 5. The blades 6 on the shaft 3 stir and cut the underwater silt. Under the action of the deep dredging pump 1, the stirred silt falls into the overflow cover 2, and reaches the suction port 11 through the water outlet interface 221, and is sucked into the deep dredging pump 1. The extracted silt is discharged to the designated location on land through the discharge port 12 and the pipeline.

[0042] The environmentally friendly deep-water dredging suction device can be hoisted or extended to a deep-water area through a telescopic rod to stir and extract the bottom silt.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An environmentally friendly deep-water dredging suction device, characterized in that: It includes a deep silt removal pump, an overflow cover, a rotating shaft, a fixing seat and an underwater driving device, wherein the deep silt removal pump is fixedly connected above the overflow cover, a water outlet interface is arranged at the top center of the overflow cover, a suction port is arranged below the deep silt removal pump, a discharge port is arranged on one side of the deep silt removal pump, the suction port is sealedly connected to the water outlet interface, a first fixing plate and a second fixing plate are connected to the left and right ends below the overflow cover respectively, a rotating shaft is horizontally installed between the first fixing plate and the second fixing plate, the rotating shaft consists of a first rotating shaft and a second rotating shaft, one end of the first rotating shaft is rotatably connected to the first fixing plate, the other end of the first rotating shaft is fixedly connected to the second rotating shaft, and the diameter of the first rotating shaft is smaller than that of the second rotating shaft diameter, a plurality of blade teeth are arranged on the outer wall of the rotating shaft, the blade teeth are evenly distributed on the outer wall of the rotating shaft, the blade teeth on the first rotating shaft are flush with the outer edges of the blade teeth on the second rotating shaft, the second rotating shaft is in the shape of a circular cover, a gap is left between the side of the second rotating shaft away from the first rotating shaft and the second fixed plate, an underwater driving device is installed inside the second rotating shaft, the underwater driving device is fixed by the fixing seat, the fixing seat is fixedly connected to the second fixing plate, a floating oil sealing device is installed on the output end of the underwater driving device, the output end of the underwater driving device is connected to the side wall of the second rotating shaft, the other end of the underwater driving device is connected to the side wall of the overflow cover, and the underwater driving device drives the rotating shaft to rotate.

2. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: The blade teeth are arranged obliquely on the rotating shaft, and the blade teeth on the first rotating shaft are inclined in opposite directions to the blade teeth on the second rotating shaft.

3. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: The first rotating shaft is connected to the first fixing plate via a bearing, and the bearing is installed in a bearing support device.

4. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: The fixing seat is cylindrical, one end of the fixing seat is fixed with the underwater driving device through a flange, and the other end of the fixing seat is connected to the second fixing plate. A through hole is opened in the middle of the second fixing plate, and the underwater driving device is passed through and fixed in the through hole.

5. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: The overflow cover is provided with reinforcing ribs.

6. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: A lifting ring is welded on the overflow cover.

7. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: The underwater driving device is a hydraulic motor driving device.

8. An environmentally friendly deep-water dredging suction device according to any one of claims 1 to 7, characterized in that: There are two rotating shafts, and the first rotating shaft and the second rotating shaft of the two rotating shafts are arranged in a staggered manner.

9. The environmentally friendly deep-water dredging suction device according to claim 1, characterized in that: A rotation speed sensor is installed on the rotating shaft.

Images