Water conservancy and hydropower dam bottom sand cleaning device

Abstract

The utility model discloses a water conservancy and hydropower dam bottom sand cleaning device, and relates to the technical field of dam bottom sand cleaning, the water conservancy and hydropower dam bottom sand cleaning device comprises a box body, a bottom plate is fixedly connected to the bottom of a filtering assembly, bottom filtering grooves are arrayed on the surface of the bottom plate at equal intervals, and a vertical filtering plate is fixedly connected to the interior of the box body; second filtering grooves are arrayed in the surface of the vertical filtering plate at equal intervals, a rotating shaft is driven by a motor to rotate, smashing teeth are made to rotate through rotation of the rotating shaft, hardened sludge at the bottom of a dam is smashed, the situation that a pipeline is blocked by the sludge is prevented, the smashed sludge is filtered through the second filtering grooves and the bottom filtering groove and then sucked by a slurry pump, and the sludge is recycled. And the sludge is discharged from the conveying pipe, metal possibly existing in the sludge is adsorbed through the magnetic rod, and the situation that blades of the slurry pump are damaged by the metal is avoided. And the second filter tank and the bottom filter tank are used for filtering sludge sucked into the slurry pump, so that large impurities such as stones are prevented from being sucked into the slurry pump, and normal operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of dam bottom sand cleaning, in particular to a dam bottom sand cleaning device for a water conservancy and hydropower dam. Background Art

[0002] A water conservancy dam refers to a dike that blocks water from a river, a water-blocking dike in a reservoir, a river, etc. Generally, a reservoir dam is mainly composed of a main dam, a secondary dam, a gravity dam, a normal spillway, an emergency spillway, a new emergency spillway, a Lingzheng channel culvert and a power station. Currently, during the operation of a water conservancy and hydropower dam, it is necessary to use a sand and silt removal device at the bottom of the water conservancy and hydropower dam to clean the silt.

[0003] After searching the existing public patent number: CN202121170193.7, the public patent name is: a sand and silt removal device for the bottom of a water conservancy and hydropower dam, comprising a box, a crushing box is fixedly connected to the bottom of the inner cavity of the box, a first motor is fixedly connected to the top of the crushing box, a crushing rod is fixedly connected to the bottom of the output end of the first motor, the bottom of the crushing rod penetrates the inner cavity of the crushing box, and the bottom of the crushing box is connected to a corrugated hose, and the bottom of the corrugated hose penetrates the outside of the box. The utility model solves the problem that the pipeline of the existing water conservancy and hydropower dam bottom sand and silt removal device is prone to blockage and low silt removal efficiency by arranging a first motor, a crushing rod, a corrugated hose, a second motor, a rotating disk, an adjusting rod, a push plate, a push rod, a spring, a baffle, a cylinder, a moving wheel, a crushing tooth plate, a third motor, a cam, a control rod and an elastic sheet. The sand and silt removal device for the bottom of a water conservancy and hydropower dam has the advantages of pipeline anti-blocking and high silt cleaning efficiency.

[0004] However, the above device cannot filter the sludge, and impurities such as stones in the sludge may damage the equipment, which has certain shortcomings. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a sand-clearing device for the bottom of a water conservancy and hydropower dam, which solves the problem that silt cannot be filtered and impurities such as stones may damage the equipment.

[0007] Technical Solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sand-clearing device for the bottom of a water conservancy and hydropower dam, comprising: a box body, a rotating roller is rotatably connected to the bottom of the box body, an inspection cover is arranged on the top of the box body, a mud pump is fixedly installed on the inspection cover, a conveying pipe is fixedly connected to the water outlet of the mud pump, a lifting ring is symmetrically arranged on the top of the inspection cover, and a filter assembly is arranged in the box body;

[0009] The bottom of the filter assembly is fixedly connected to a bottom plate, the surface of the bottom plate has bottom filter slots in an equidistant array, the inside of the box is fixedly connected to a vertical filter plate, the surface of the vertical filter plate has second filter slots in an equidistant array, and the box is fixedly connected to a magnetic rod.

[0010] Preferably, the inspection cover is provided with a feed port having the same size as the water inlet of the mud pump, and the mud pump is arranged directly above the magnetic rod.

[0011] Preferably, a crushing assembly is provided on the box body, and the crushing assembly includes mounting blocks, and the mounting blocks are symmetrically arranged on the inner wall of the box body, and a rotating shaft is rotatably connected between two groups of the mounting blocks, and a circular array of crushing teeth is provided on the surface of the rotating shaft, and a motor is fixedly installed on one side of the mounting block.

[0012] Preferably, a lifting assembly is provided on the box body, and the lifting assembly includes a slide groove, the slide groove is opened on the surface of the box body, the mounting block is slidably connected in the slide groove, a spring is fixedly connected between the mounting block and the slide groove, and an electromagnet is fixedly connected to the bottom of the box body.

[0013] Preferably, one end of the spring is fixedly connected to the top of the slide slot, and the other end of the spring is fixedly connected to the top of the mounting block, and an iron block is arranged in the mounting block.

[0014] Preferably, a counterweight assembly is provided in the box body, and the counterweight assembly includes a counterweight water tank, which is fixedly connected to the inside of the box body, and a water pipe is fixedly connected to the bottom of the counterweight water tank, and a solenoid valve connected to the water pipe is provided on the water pipe.

[0015] Preferably, the pulverizing teeth are spaced the same distance from the second filter slots, and the pulverizing teeth and the second filter slots are arranged in a one-to-one correspondence.

[0016] Beneficial Effects

[0017] The utility model provides a device for clearing sand from the bottom of a water conservancy and hydropower dam, which has at least the following beneficial effects compared with the prior art:

[0018] The motor drives the rotating shaft to rotate, and the rotation of the rotating shaft causes the crushing teeth to rotate, crushing the hardened sludge at the bottom of the dam to prevent the sludge from clogging the pipeline. The crushed sludge is filtered through the second filter tank and the bottom filter tank and then sucked into the mud pump. The sludge is discharged from the delivery pipe, and the metal that may exist in the sludge is adsorbed by the magnetic rod to prevent the metal from damaging the blades of the mud pump. The second filter tank and the bottom filter tank filter the sludge sucked into the mud pump to prevent large impurities such as stones from being sucked into the mud pump, ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the counterweight assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the crushing component of the utility model.

[0023] In the figure: 1. Box body; 2. Inspection cover; 3. Mud pump; 4. Delivery pipe; 5. Lifting ring; 6. Rotating roller; 7. Counterweight assembly; 701. Counterweight water tank; 702. Solenoid valve; 703. Water delivery pipe; 8. Filter assembly; 801. Bottom plate; 802. Bottom filter tank; 803. Vertical filter plate; 804. Second filter tank; 805. Magnetic rod; 9. Crushing assembly; 901. Mounting block; 902. Rotating shaft; 903. Crushing teeth; 904. Motor; 10. Lifting assembly; 1001. Slide; 1002. Spring; 1003. Electromagnet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-4 The utility model provides a technical solution: a box body 1, a rotating roller 6 is rotatably connected to the bottom of the box body 1, an inspection cover 2 is arranged on the top of the box body 1, a mud pump 3 is fixedly installed on the inspection cover 2, a conveying pipe 4 is fixedly connected to the water outlet of the mud pump 3, a lifting ring 5 is symmetrically arranged on the top of the inspection cover 2, and a filter assembly 8 is arranged in the box body 1;

[0027] A bottom plate 801 is fixedly connected to the bottom of the filter assembly 8, and bottom filter slots 802 are arranged in an equidistant array on the surface of the bottom plate 801. A vertical filter plate 803 is fixedly connected to the inside of the box body 1, and second filter slots 804 are arranged in an equidistant array on the surface of the vertical filter plate 803. A magnetic rod 805 is fixedly connected to the inside of the box body 1.

[0028] Analysis of the above content: The sludge and water at the bottom of the box 1 are pumped out through the mud pump 3 and discharged through the delivery pipe 4. The sucked sludge is filtered through the bottom filter tank 802 and the second filter tank 804 to filter large particles of impurities and stones in the sludge. The metal present in the sludge is adsorbed by the magnetic rod 805 to improve the filtering effect and avoid damage to the mud pump 3.

[0029] Embodiment 2:

[0030] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a feed port having the same size as the water inlet of the mud pump 3 is opened on the inspection cover 2 , and the mud pump 3 is arranged directly above the magnetic rod 805 .

[0031] Analysis of the above content: The metals such as iron that can be attracted by magnetic force in the sludge are filtered by the magnetic rod 805. The sludge and sand are pumped out from the bottom of the dam by the mud pump 3 to avoid accumulation.

[0032] Embodiment three:

[0033] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a crushing assembly 9 is arranged on the box 1, and the crushing assembly 9 includes a mounting block 901, and the mounting block 901 is symmetrically arranged on the inner wall of the box 1. A rotating shaft 902 is rotatably connected between two groups of mounting blocks 901, and a crushing tooth 903 is arranged in a circular array on the surface of the rotating shaft 902, and a motor 904 is fixedly installed on one side of the mounting block 901. The crushing teeth 903 and the second filter slot 804 have the same spacing, and the crushing teeth 903 and the second filter slot 804 are arranged one by one.

[0034] Analysis of the above content: The motor 904 drives the rotating shaft 902 and the crushing teeth 903 to rotate, and the rotation of the crushing teeth 903 is used to crush the silt and sand at the bottom of the dam to prevent the compacted silt from clogging the pipeline.

[0035] Embodiment 4:

[0036] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a lifting assembly 10 is arranged on the box body 1, and the lifting assembly 10 includes a slide groove 1001, the slide groove 1001 is opened on the surface of the box body 1, the mounting block 901 is slidably connected in the slide groove 1001, a spring 1002 is fixedly connected between the mounting block 901 and the slide groove 1001, and an electromagnet 1003 is fixedly connected to the bottom of the box body 1.

[0037] Analysis of the above content: Under the action of the electromagnet 1003, the mounting block 901 is adsorbed, the spring 1002 is pulled open, and the mounting block 901 moves downward, allowing the crushing teeth 903 to contact the silt at the bottom of the dam to facilitate crushing the silt. Under the action of the spring 1002 and the electromagnet 1003, the height of the crushing teeth 903 is adjusted to facilitate adjustment of the thickness of the crushed silt.

[0038] Embodiment five:

[0039] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: one end of the spring 1002 is fixedly connected to the top of the slide slot 1001, and the other end of the spring 1002 is fixedly connected to the top of the mounting block 901, and an iron block is arranged in the mounting block 901.

[0040] Analysis of the above content: The mounting block 901 is magnetically adsorbed by the electromagnet 1003, and the sliding groove 1001 makes the mounting block 901 more stable when moving up and down.

[0041] Embodiment six:

[0042] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: a counterweight assembly 7 is arranged in the box body 1, and the counterweight assembly 7 includes a counterweight water tank 701, which is fixedly connected to the inside of the box body 1, and a water pipe 703 is fixedly connected to the bottom of the counterweight water tank 701, and a solenoid valve 702 connected to the water pipe 703 is arranged on the water pipe 703.

[0043] Analysis of the above content: Open the solenoid valve 702, water enters the counterweight water tank 701, increases the weight of the box body 1, increases the pressure of the crushing teeth 903 on the sludge, and facilitates the crushing of the sludge.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for clearing sand from the bottom of a water conservancy and hydropower dam, characterized in that: include: A box body (1), the bottom of the box body (1) is rotatably connected to a rotating roller (6), the top of the box body (1) is provided with an inspection cover (2), a mud pump (3) is fixedly mounted on the inspection cover (2), a water outlet of the mud pump (3) is fixedly connected to a delivery pipe (4), a lifting ring (5) is symmetrically provided on the top of the inspection cover (2), and a filter assembly (8) is provided in the box body (1); The bottom of the filter assembly (8) is fixedly connected to a bottom plate (801), the surface of the bottom plate (801) has bottom filter slots (802) arranged in an equidistant array, the interior of the box body (1) is fixedly connected to a vertical filter plate (803), the surface of the vertical filter plate (803) has second filter slots (804) arranged in an equidistant array, and the interior of the box body (1) is fixedly connected to a magnetic rod (805).

2. A device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 1, characterized in that: The inspection cover (2) is provided with a feed inlet having the same size as the water inlet of the mud pump (3), and the mud pump (3) is arranged directly above the magnetic rod (805).

3. A device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 1, characterized in that: The housing (1) is provided with a crushing assembly (9), the crushing assembly (9) comprising a mounting block (901), the mounting block (901) being symmetrically arranged on the inner wall of the housing (1), a rotating shaft (902) being rotatably connected between two groups of the mounting blocks (901), a circumferential array of crushing teeth (903) being arranged on the surface of the rotating shaft (902), and a motor (904) being fixedly mounted on one side of the mounting block (901).

4. A device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 3, characterized in that: The box body (1) is provided with a lifting assembly (10), the lifting assembly (10) comprising a slide groove (1001), the slide groove (1001) being opened on the surface of the box body (1), the mounting block (901) being slidably connected in the slide groove (1001), a spring (1002) being fixedly connected between the mounting block (901) and the slide groove (1001), and an electromagnet (1003) being fixedly connected to the bottom of the box body (1).

5. A device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 4, characterized in that: One end of the spring (1002) is fixedly connected to the top of the slide groove (1001), and the other end of the spring (1002) is fixedly connected to the top of the mounting block (901), and an iron block is arranged inside the mounting block (901).

6. The device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 1, characterized in that: A counterweight assembly (7) is arranged inside the box body (1), and the counterweight assembly (7) comprises a counterweight water tank (701). The counterweight water tank (701) is fixedly connected to the inside of the box body (1), and a water pipe (703) is fixedly connected to the bottom of the counterweight water tank (701), and a solenoid valve (702) connected to the water pipe (703) is arranged on the water pipe (703).

7. The device for clearing sand from the bottom of a water conservancy and hydropower dam according to claim 3, characterized in that: The pulverizing teeth (903) and the second filter groove (804) have the same spacing, and the pulverizing teeth (903) and the second filter groove (804) are arranged in a one-to-one correspondence.

Images