Water conservancy and hydropower dam desilting equipment

Abstract

The invention discloses water conservancy and hydropower dam desilting equipment which aims at solving the problems that due to sludge hardening, suction is difficult, the suction effect is poor, the suction number is small, and the working efficiency of a desilting device is low. The desilting equipment comprises a cylindrical sewage collecting pipe with one closed end and further comprises at least one sludge suction assembly, each sludge suction assembly comprises a sludge suction pipe communicated with the sewage collecting pipe, a filter cover is arranged at a water inlet of each sludge suction pipe, and the filter covers can reduce the situation that large particles enter the sewage collecting pipes in the sludge suction process; the driving assembly comprises a driving shaft coaxially arranged with the sewage collecting pipe, the driving shaft is rotatably mounted in the sewage collecting pipe, and the driving assembly further comprises a driving structure for driving the driving shaft to rotate through water flow. And the working efficiency of the dredging device is low.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower maintenance equipment, and in particular relates to a water conservancy and hydropower dam silt removal equipment. Background Art

[0002] The current water conservancy hub is an organic complex composed of hydraulic structures that control and dominate water flow, and are built in accordance with relevant national standards to develop and utilize river hydropower resources. They are arranged in reasonable locations, cooperate and coordinate with each other, and thus achieve hydraulic and water conservancy tasks. It includes water retaining structures and water discharge structures. The representative form of water retaining structures is called dam. It can be divided into earth dam, gravity dam, concrete panel rockfill dam and arch dam. The main water-blocking structure in the dyke-type hydropower station is also called a river dam. Its function is to raise the water level of the river and form an upstream regulating reservoir.

[0003] With the gradual development of the economy, the number of dams is increasing day by day, and the safety issues brought about by it are also being taken seriously. Dams are built in the river channel to intercept the river. As the use time increases, a large amount of sand and silt will accumulate at the bottom of the dam. These accumulated sand and silt will also cause a clustering effect. The silt will become compacted at the bottom of the dam. The agglomerated silt and sand and gravel can easily block the pipeline. The compaction of the silt makes it difficult to absorb, resulting in poor absorption effect, small absorption amount, and low efficiency of the dredging device.

[0004] For example, 202110373611.0, the patent name is a silt removal device and treatment system for water conservancy and hydropower engineering dams, and the specific technical solution is: it includes a separation tank, with silt outlets and water outlets at both ends of the separation tank, and a sewage inlet on one side of the separation tank; a rotating shaft and spiral blades spiraling around the rotating shaft and abutting against the cylinder wall are provided in the separation tank; a filter is provided at the water outlet; the separation tank is provided with a power mechanism for driving the rotating shaft to rotate. Compared with the prior art, the present invention is a silt removal device and treatment system for water conservancy and hydropower dams that is simple to clean, easy to maintain, and can effectively separate mud and water and reduce energy consumption, but it cannot adapt to and solve the above-mentioned technical problems, and because it works underwater, there is a risk of water leakage when using a motor as a driving source, which increases the maintenance cost and manufacturing cost during subsequent use. Summary of the invention

[0005] (1) Technical issues to be resolved In view of the deficiencies in the prior art, the purpose of the present invention is to provide a water conservancy and hydropower dam silt clearing equipment to solve the problem that the silt is difficult to absorb due to compaction, resulting in poor absorption effect, small absorption amount and low working efficiency of the silt clearing device.

[0006] (2) Technical solution In order to solve the above technical problems, the present invention provides a silt removal device for a water conservancy and hydropower dam, which includes a cylindrical sewage collecting pipe with one end being closed. The device can be directly applied to a silt removal ship or used alone. It also includes at least one set of mud suction components, the mud suction components include a mud suction pipe connected to the sewage collecting pipe, and a filter cover is provided at the water inlet of the mud suction pipe, and the filter cover can reduce the large particles from entering the sewage collecting pipe during the mud suction process; The drive assembly also includes a drive shaft coaxially arranged with the sewage collecting pipe and rotatably installed inside the sewage collecting pipe, one end of the drive shaft extends out of the sewage collecting pipe, and the drive assembly also includes a drive structure that drives the drive shaft to rotate by water flow; It also includes a mixing assembly located at the closed end of the sewage collecting pipe, the mixing assembly includes a plurality of mixing rods installed at one end of the driving shaft extending out of the sewage collecting pipe, the driving structure drives the driving shaft to rotate and the driving shaft drives the mixing rods to rotate, the mixing rods can stir and diffuse the sludge at the suction position to achieve the purpose of sucking the sludge.

[0007] The driving structure includes a first turbine installed on the driving shaft. The first turbine drives the shaft to rotate, thereby driving the mixing rod to rotate.

[0008] Preferably, the driving structure includes a driving pipe connected to the sewage collecting pipe, and a driving shaft is rotatably installed inside the driving pipe, a second turbine is installed on the driving shaft, a first bevel gear is installed on one end of the driving shaft close to the driving shaft, and a second bevel gear meshing with the first bevel gear is installed on the driving shaft. Without installing the first turbine, by setting the driving pipe, the driving pipe is kept at a certain distance from the mud suction pipe, when negative pressure is generated inside the sewage collecting pipe due to the action of the sewage pump, clean water will enter from the inside of the driving pipe, and at this time, the second turbine will be driven to rotate, so as to realize the rotation of the driving shaft through the meshing of the first bevel gear and the second bevel gear.

[0009] Furthermore, the angle between the axes of the multiple mud suction pipes and the axis of the sewage collecting pipe is less than degrees.

[0010] Furthermore, an anti-blocking mechanism is provided inside the mud suction pipe, and the anti-blocking mechanism includes a scraper that can clean the filter cover, and one side of the scraper is in contact with the filter cover.

[0011] Furthermore, the anti-blocking mechanism also includes a rotating shaft coaxially arranged with the mud suction pipe, and the scraper is fixedly connected to the end of the rotating shaft close to the filter cover, and a third bevel gear is installed on the end of the rotating shaft away from the scraper, and a fourth bevel gear meshing with the third bevel gear is installed on the driving shaft. During the operation of the driving shaft, the third bevel gear meshes with the fourth bevel gear to drive the rotating shaft to rotate, that is, the scraper is driven to rotate. During the rotation of the scraper, the sand and stones blocked on the filter cover are scraped off and pushed away from the filter cover, thereby ensuring that the filter cover is always unobstructed during the process of sucking mud.

[0012] Furthermore, a first protective cover in which the first bevel gear and the second bevel gear are placed and a second protective cover in which the third bevel gear and the fourth bevel gear are placed are provided inside the sewage collecting pipe.

[0013] Furthermore, a sleeve is slidably mounted on one end of the driving shaft extending out of the sewage collecting pipe, and a spline extending along the axis of the driving shaft is provided between the sleeve and the driving shaft.

[0014] Furthermore, the mixing rod is installed at the bottom of the casing, and a plurality of scraper rods are fixed on the mixing rod. When the mixing rod rotates, it drives the scraper rods to stir the sludge, thereby improving the diffusion effect of the sludge. At the same time, through the action of the casing, the mixing rod can automatically follow the sludge to sink after the sludge at the bottom is continuously cleaned. The maximum sliding length of the casing can be adjusted according to the thickness of the sludge layer in different use environments to achieve sufficient stirring of the sludge layer.

[0015] Furthermore, a counterweight is installed on the casing, and the counterweight can increase the depth of the scraper rod inserted into the mud.

[0016] Furthermore, multiple mixing rods are rotatably mounted on the sleeve, and multiple sockets are provided at the bottom of the sewage collecting pipe, whose number and position correspond to the mixing rods one by one. The mixing rod is rotated to make it rotate upward and close to the sewage collecting pipe, and the mixing rod is fixed by the socket on the sewage collecting pipe, thereby reducing the area occupied by the mixing rod.

[0017] (3) Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: The present invention can prevent the turbine from colliding with the sludge, thereby increasing the service life of the turbine and reducing the cost of subsequent maintenance. The sludge suction pipe is closer to the bottom, further improving the sludge suction effect.

[0018] The present invention ensures that the filter cover remains unobstructed during the sludge suction process, reduces the need for manual cleaning at a later stage, greatly improves the use effect of the device, and uses its own power source for operation, thus further saving costs.

[0019] The function of the sleeve in the present invention enables the mixing rod to automatically sink with the sludge after the bottom sludge is continuously cleaned, and continue to stir the sludge below, which has a better use effect and increases the depth of the scraper rod inserted into the sludge to further improve the scraping effect of the sludge, thereby improving the sludge suction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the first turbine adopted as a whole in the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the second turbine used as a whole in the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the interior of the overall front of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the overall internal shaft side of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the inner shaft side of the protective cover of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the inner shaft side of the protective cover of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the overall driving method of the present invention.

[0027] Figure 8 It is a structural schematic diagram of a partially enlarged spline of the present invention.

[0028] The markings in the attached drawings are: 1. sewage collecting pipe; 2. mud suction pipe; 3. driving shaft; 4. first turbine; 5. filter cover; 6. sleeve; 7. holder; 8. mixing rod; 9. scraper rod; 10. driving pipe; 11. second turbine; 12. driving shaft; 13; 14. second protective cover; 15. spline; 16. second bevel gear; 17. first bevel gear; 18. fourth bevel gear; 19. third bevel gear; 20. rotating shaft; 21. scraper; 22. counterweight. DETAILED DESCRIPTION

[0029] This specific implementation method is a water conservancy and hydropower dam silt removal equipment, and its structural schematic diagram is as follows Figure 1-Figure 8 As shown, the dredging equipment includes a cylindrical sewage collecting pipe 1 with one end being closed. When in use, the sewage collecting pipe 1 is connected to the sewage pump through a pipeline. The device can be directly applied to the dredging ship, and can also be used alone, which is more convenient. It also includes at least one set of mud suction components, which includes a mud suction pipe 2 connected to the sewage collecting pipe 1, and a filter cover 5 is provided at the water inlet of the mud suction pipe 2. The filter cover 5 can reduce the large particles from entering the sewage collecting pipe 1 during the sludge suction process, thereby avoiding damage to the sewage pump. Arranging multiple mud suction pipes 2 can increase the efficiency of sludge suction; It also includes a driving assembly, which includes a driving shaft 3 coaxially arranged with the sewage collecting pipe 1 and rotatably installed inside the sewage collecting pipe 1, with one end of the driving shaft 3 extending out of the sewage collecting pipe 1, and the driving assembly also includes a driving structure that drives the driving shaft 3 to rotate by water flow. It is also possible to install a motor inside the sewage collecting pipe 1 and drive the driving shaft 3 to rotate. This is another embodiment of the present application; It also includes a mixing component located at the closed end of the sewage collecting pipe 1, which includes a plurality of mixing rods 8 installed at one end of the driving shaft 3 extending out of the sewage collecting pipe 1. The mixing rods 8 can stir and diffuse the sludge at the suction position to achieve the purpose of sucking the sludge.

[0030] See also Figure 1 and 3 -8 is the first embodiment of the present application, and the driving structure includes a first turbine 4 installed on the driving shaft 3.

[0031] When the first turbine 4 is installed, when negative pressure is generated inside the sewage collecting pipe 1 due to the action of the sewage pump, water flows inside the sewage collecting pipe 1. When it passes through the first turbine 4, it pushes the first turbine 4 to rotate, thereby driving the drive shaft 3 to rotate, and then driving the mixing rod 8 to rotate.

[0032] See also Figure 2-7 In the second embodiment of the present application, the driving structure includes a driving pipe 10 connected to the sewage collecting pipe 1, and a driving shaft 12 is rotatably installed inside the driving pipe 10, a second turbine 11 is installed on the driving shaft 12, and a first bevel gear 17 is installed on one end of the driving shaft 12 close to the driving shaft 3, and a second bevel gear 16 meshing with the first bevel gear 17 is installed on the driving shaft 3.

[0033] When the above-mentioned scheme is adopted, the first turbine 4 is not installed. By setting the driving pipe 10, the driving pipe 10 is kept at a certain distance from the mud suction pipe 2. When negative pressure is generated inside the sewage collecting pipe 1 due to the action of the sewage pump, clean water will enter from the driving pipe 10, and at this time, the second turbine 11 will be driven to rotate, so as to realize the rotation of the driving shaft 3 through the engagement of the first bevel gear 17 and the second bevel gear 16. This method can avoid the collision of the turbine with the mud, thereby increasing the service life of the turbine and reducing the cost of subsequent maintenance.

[0034] See also Figure 1 , 2 4-7 are based on the first embodiment or the second embodiment of the present application, and the angle between the axis of the plurality of mud suction pipes 2 and the axis of the sewage collecting pipe 1 is less than 45 degrees.

[0035] The mud suction pipe 2 is arranged obliquely so that the mud suction pipe 2 is closer to the bottom, thereby further improving the effect of sucking mud.

[0036] See also Figure 5-8On the basis of the first embodiment or the second embodiment of the present application, an anti-blocking mechanism is provided inside the mud suction pipe 2, and the anti-blocking mechanism includes a scraper 21 that can scrape the filter cover 5, and one side of the scraper 21 is in contact with the filter cover 5. The anti-blocking mechanism also includes a rotating shaft 20 coaxially arranged with the mud suction pipe 2, and the scraper 21 is fixedly connected to one end of the rotating shaft 20 close to the filter cover 5, and a third bevel gear 19 is installed on the end of the rotating shaft 20 away from the scraper 21, and a fourth bevel gear 18 meshing with the third bevel gear 19 is installed on the drive shaft 3.

[0037] In order to prevent the filter cover 5 from being blocked by sand and stones during the sludge suction process during use, an anti-blocking mechanism is installed, that is, the driving shaft 3 will drive the rotating shaft 20 to rotate through the meshing of the third bevel gear 19 and the fourth bevel gear 18 during operation, that is, the scraper 21 will drive the rotation. During the rotation process, the scraper 21 will scrape off the sand and stones blocked on the filter cover 5 and push them away from the filter cover 5, thereby ensuring that the filter cover 5 always remains unobstructed during the sludge suction process, reducing the work required for manual cleaning in the later stage, greatly improving the use effect of the device, and using its own power source for operation, which is more cost-effective.

[0038] See also Figure 1-3 On the basis of the first embodiment or the second embodiment of the present application, a first protective cover 13 with the first bevel gear 17 and the second bevel gear 16 disposed inside the sewage collecting pipe 1 and a second protective cover 14 with the third bevel gear 19 and the fourth bevel gear 18 disposed inside the sewage collecting pipe 1 are provided inside.

[0039] The protective cover can protect the meshing effect of the first bevel gear 17, the second bevel gear 16, the third bevel gear 19 and the fourth bevel gear 18, avoiding sludge from remaining inside the gear gaps, thereby improving the meshing effect and service life thereof.

[0040] See also Figure 1-8 On the basis of the first embodiment or the second embodiment of the present application, a sleeve 6 is slidably installed on one end of the driving shaft 3 extending out of the sewage collecting pipe 1, and a spline 15 extending along the axis of the driving shaft 3 is provided between the sleeve 6 and the driving shaft 3, and a mixing rod 8 is installed at the bottom of the sleeve 6, and a plurality of scraping rods 9 are fixed on the mixing rod 8.

[0041] During use, the scraper rod 9 will be inserted into the sludge first. Therefore, when the mixing rod 8 rotates, it will drive the scraper rod 9 to stir the sludge, thereby improving the diffusion effect of the sludge. At the same time, through the action of the sleeve 6, the mixing rod 8 will automatically follow the sludge to sink after the bottom sludge is continuously cleaned, and continue to stir the sludge below, so as to achieve better use effect. In addition, the maximum sliding length of the sleeve 6 can be adjusted according to the thickness of the sludge layer in different use environments to achieve sufficient stirring of the sludge layer, so as to achieve better use effect. A counterweight block 22 is installed on the sleeve 6. The counterweight block 22 can improve the smoothness of the sleeve 6 during the sliding process, and can increase the depth of the scraper rod 9 inserted into the sludge, so as to further improve the scraping effect of the sludge, and can further improve the effect of scraping off the compacted sludge, thereby improving the sludge absorption efficiency.

[0042] See also Figure 1-4 On the basis of the first embodiment or the second embodiment of the present application, a plurality of mixing rods 8 are rotatably mounted on the sleeve 6 , and a plurality of holders 7 whose number and position correspond one-to-one with the mixing rods 8 are provided at the bottom of the sewage collecting pipe 1 .

[0043] When the device is folded up, it is only necessary to rotate the mixing rod 8 upward to be close to the sewage collecting pipe 1, and fix the mixing rod 8 through the holder 7 on the sewage collecting pipe 1, thereby reducing the floor space occupied by the mixing rod 8 and improving the convenience of storage of the device.

[0044] The solution in the present application can avoid the collision of the turbine with the sludge, thereby increasing the service life of the turbine and reducing the cost of subsequent maintenance. The sludge suction pipe is closer to the bottom, further improving the sludge suction effect, and ensuring that the filter cover is always unobstructed during the sludge suction process, reducing the need for manual cleaning in the later stage, greatly improving the use effect of the device, and using its own power source for operation, which is more cost-effective. The function of the sleeve in the present application can make the mixing rod automatically sink with the sludge after the bottom sludge is continuously cleaned, and continue to stir the sludge below, which has a better use effect and increases the depth of the scraper rod inserted into the sludge to further improve the scraping effect of the sludge, thereby improving the sludge suction efficiency.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A silt removal device for a water conservancy and hydropower dam, the silt removal device comprising a cylindrical sewage collecting pipe (1) with one end being closed, characterized in that: It also comprises at least one set of mud suction components, the mud suction components comprising a mud suction pipe (2) connected to the sewage collecting pipe (1), and a filter cover (5) is provided at the water inlet of the mud suction pipe (2); It also includes a driving assembly, the driving assembly including a driving shaft (3) arranged coaxially with the sewage collecting pipe (1), the driving shaft (3) being rotatably mounted inside the sewage collecting pipe (1), one end of the driving shaft (3) extending out of the sewage collecting pipe (1), and the driving assembly also including a driving structure for driving the driving shaft (3) to rotate by water flow; It also includes a mixing assembly located at the closed end of the sewage collecting pipe (1), the mixing assembly comprising a plurality of mixing rods (8) mounted on the end of the driving shaft (3) extending out of the sewage collecting pipe (1); The driving structure drives the driving shaft (3) to rotate, and the driving shaft (3) drives the mixing rod (8) to rotate; The drive structure comprises a first turbine (4) mounted on a drive shaft (3).

2. A water conservancy and hydropower dam desilting equipment according to claim 1, characterized in that: The driving structure comprises a driving pipe (10) connected to the sewage collecting pipe (1), and a driving shaft (12) is rotatably mounted inside the driving pipe (10), a second turbine (11) is mounted on the driving shaft (12), a first bevel gear (17) is mounted on one end of the driving shaft (12) close to the driving shaft (3), and a second bevel gear (16) meshing with the first bevel gear (17) is mounted on the driving shaft (3).

3. The water conservancy and hydropower dam desilting equipment according to claim 1, characterized in that: The included angle between the axes of the multiple mud suction pipes (2) and the axis of the sewage collecting pipe (1) is less than 45 degrees.

4. The water conservancy and hydropower dam desilting equipment according to claim 1, characterized in that: An anti-blocking mechanism is provided inside the mud suction pipe (2), and the anti-blocking mechanism comprises a scraper (21) capable of scraping the filter cover (5), and one side of the scraper (21) is in contact with the filter cover (5).

5. The water conservancy and hydropower dam desilting equipment according to claim 4, characterized in that: The anti-blocking mechanism further comprises a rotating shaft (20) arranged coaxially with the mud suction pipe (2), and the scraper (21) is fixedly connected to an end of the rotating shaft (20) close to the filter cover (5), a third bevel gear (19) is mounted on an end of the rotating shaft (20) away from the scraper (21), and a fourth bevel gear (18) meshing with the third bevel gear (19) is mounted on the drive shaft (3).

6. The water conservancy and hydropower dam desilting equipment according to claim 5, characterized in that: The sewage collecting pipe (1) is provided with a first protective cover (13) in which the first bevel gear (17) and the second bevel gear (16) are disposed, and a second protective cover (14) in which the third bevel gear (19) and the fourth bevel gear (18) are disposed.

7. The water conservancy and hydropower dam desilting equipment according to claim 1, characterized in that: A sleeve (6) is slidably mounted on one end of the drive shaft (3) extending out of the sewage collecting pipe (1), and a spline (15) extending along the axis of the drive shaft (3) is provided between the sleeve (6) and the drive shaft (3).

8. The water conservancy and hydropower dam desilting equipment according to claim 7, characterized in that: The mixing rod (8) is installed at the bottom of the sleeve (6), and a plurality of scraping rods (9) are fixed on the mixing rod (8).

9. The water conservancy and hydropower dam desilting equipment according to claim 8, characterized in that: A counterweight (22) is mounted on the sleeve (6).

10. The water conservancy and hydropower dam desilting equipment according to claim 1, characterized in that: The multiple mixing rods (8) are all rotatably mounted on the sleeve (6), and the bottom of the sewage collecting pipe (1) is provided with multiple holders (7) whose number and positions correspond one-to-one with the mixing rods (8).

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