Device for removing sludge in water-collecting well of hydropower station

Abstract

The utility model relates to the technical field of sludge cleaning, and discloses a device for cleaning sludge in a water collecting well of a hydropower station, which comprises a main outer cylinder, a sludge outlet pipe is connected to the right side of the main outer cylinder in a penetrating manner, a drainage pipe for drainage is arranged below the sludge outlet pipe, and a main spiral blade is rotatably connected to the inside of the main outer cylinder. A motor is arranged at the top of the main outer barrel, the output end of the motor is fixedly connected with a main spiral blade, an auxiliary spiral blade is in threaded connection with the lower portion of the main spiral blade, the auxiliary spiral blade is sleeved with an auxiliary outer barrel, an upper connecting disc is fixedly connected with the lower portion of the main outer barrel, and a lower connecting disc is fixedly connected with the upper portion of the auxiliary outer barrel. A through groove is formed in the upper connecting disc, sludge cleaning can be better conducted on water collecting wells with different depths, meanwhile, the cleaned sludge can be filtered, water in the sludge can be better recycled into the water collecting wells, and waste is not likely to be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge cleaning, in particular to a sludge removing device in a water collecting well of a hydropower station. Background Art

[0002] Foundation pit dewatering refers to the dewatering work done to ensure that the foundation pit can be constructed under dry conditions, to prevent slope instability, foundation sand flow, pit bottom uplift, pit bottom pipe burst and reduced foundation bearing capacity when the groundwater level is higher than the bottom of the excavation during the excavation of the foundation pit. At present, the main methods of foundation pit dewatering are: open ditch plus water collection well dewatering, and then placing a drainage pump in the water collection well. The outlet of the drainage pump is directly connected to the outside world. When in use, the water can be directly discharged through the water pump. At the same time, in order to prevent the collapse of the water collection well, a dewatering well pipe is placed in the water collection well to support the water collection well. However, during the excavation and transportation of earthwork, it is inevitable that some miscellaneous soil will fall into the water collection well, resulting in the well depth not meeting the design requirements and failing to play the role of dewatering. Therefore, the staff needs to clean up the silt in the water collection well in time.

[0003] In the related art, reference can be made to the Chinese patent with announcement number CN211621924U, which specifically discloses a new type of sludge cleaning device for water collection wells. When the new type of sludge cleaning device for water collection wells is used, the clamping part slides between the positioning bolt and the motor, and the relative position of the clamping part on the spiral conveying shaft is fixed by the positioning bolt. Then the motor is started, the motor will drive the spiral conveying shaft to rotate, and the spiral blade fixed on the spiral conveying shaft will also drive the sludge in the water collection well to move upward between the spiral blade and the mounting barrel until it reaches the mud conveying pipe from the mud outlet. As the spiral conveying shaft rotates, the spiral blade continuously transports the sludge upward, and the sludge in the mud conveying pipe also flows out of the mud conveying pipe under the squeeze of the sludge in the mounting barrel. After the cleaning is completed, the operating motor stops, and then the positioning bolt is unscrewed, the sliding clamping part is embedded in the clamping groove on the mounting barrel, and then the positioning bolt is screwed into the positioning hole, thereby fixing the clamping part to prevent the clamping part from slipping from the clamping groove. Then start the motor, the motor output shaft drives the screw conveying shaft to rotate, and the screw conveying shaft also drives the installation barrel to rotate through the clamping piece, so that the installation barrel also moves upward relative to the support plate, and the installation plate also slides upward on the support rod until the installation barrel is rotated out of the support plate. Through one motor, the screw conveying shaft can be driven to clean the sludge, and the cleaning device can also be driven to be taken out from the water collection well, which is very convenient and labor-saving.

[0004] The applicant discovered that there were deficiencies in the use of the above-mentioned new type of sludge cleaning device for a water collection well: although the sludge inside the water collection well could be cleaned, the length of the mounting tube and the spiral blades were fixed, and only the sludge in the water collection well at a specified depth could be processed. At the same time, the well water would be discharged together with the sludge during the lifting process, resulting in a waste of well water.

[0005] In view of this, the present technical solution proposes a silt removal device in a water collection well of a hydropower station, so as to better solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a device for removing silt in a water collection well of a hydropower station in order to solve the above-mentioned problems.

[0007] The technical solution adopted by the utility model is as follows: a sludge removal device in a water collection well of a hydropower station, comprising a main outer cylinder, a mud outlet pipe is connected through the right side of the main outer cylinder, and a drainage pipe for drainage is arranged below the mud outlet pipe, a main spiral blade is rotatably connected inside the main outer cylinder, a motor is arranged on the top of the main outer cylinder, and the output end of the motor is fixedly connected to the main spiral blade;

[0008] The lower part of the main spiral blade is threadedly connected to an auxiliary spiral blade, and the auxiliary spiral blade is sleeved with an auxiliary outer cylinder, an upper connecting plate is fixedly connected to the lower part of the main outer cylinder, and a lower connecting plate is fixedly connected to the upper part of the auxiliary outer cylinder, a through groove is provided inside the upper connecting plate, and a fixing plate is fixedly connected to the position of the lower connecting plate relative to the through groove, and the fixing plate is inserted in the through groove, a movable groove and a positioning groove are provided inside the fixed plate, and a group of positioning plates are movably inserted inside the movable groove and the positioning groove, an operating plate is fixedly connected to the top of the positioning plate, and a spring is fixedly connected between the operating plate and the inner wall of the movable groove.

[0009] In a preferred embodiment, a mounting plate is fixedly connected above the drainage pipe, and the mounting plate is installed below the mud outlet pipe by bolts, and a filter screen is arranged above the interior of the drainage pipe.

[0010] In a preferred embodiment, an auxiliary plate for overlapping with the water collection well is provided above the main outer cylinder, and lifting rings for cooperating with the lifting device are provided on both sides of the top of the auxiliary plate.

[0011] In a preferred embodiment, a threaded rod is fixedly connected to the shaft of the auxiliary spiral blade, and the threaded rod is threadedly connected to a threaded hole provided below the shaft of the main spiral blade.

[0012] In a preferred embodiment, the height of the fixing plate is greater than the thickness of the upper connecting plate, and the movable groove and the positioning groove are connected structures.

[0013] In a preferred embodiment, the number of the positioning grooves is two, and the positioning grooves are arranged at the front and rear positions of the upper interior of the fixed plate and are connected to the movable groove.

[0014] In a preferred embodiment, a fastening bolt is threadedly connected in the front operation panel, and a threaded hole for use with the fastening bolt is opened inside the rear operation panel.

[0015] To sum up, due to the adoption of the above-mentioned technical scheme, the beneficial effects of the utility model are: it is convenient to better clean the sludge in the water collection wells of different depths, and at the same time the cleaned sludge can be filtered and processed, so that the water in the sludge can be better recovered into the water collection well, which is not easy to cause waste.

[0016] 1. In the utility model, the drainage pipe can be installed at the lower part of the mud outlet pipe by the cooperation of the mounting plate and the bolts, and at the same time, with the cooperation of the filter screen, the water in the sludge can be recovered into the water collection well.

[0017] 2. In the utility model, the main spiral blade and the auxiliary spiral blade can be assembled by threading the auxiliary spiral blade under the main spiral blade, and then the auxiliary outer cylinder is sleeved on the auxiliary spiral blade so that the lower connecting disk fits with the upper connecting disk. At this time, the fixing plate is inserted into the through groove, and the upper connecting disk threaded on the operating plate is removed. At this time, the operating plate pushes the positioning plate to the outside of the positioning groove under the action of the spring, and the positioning plate can be pressed on the top of the upper connecting disk to position the auxiliary outer cylinder for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the drainage pipe of the utility model;

[0020] Figure 3 This is a cross-sectional view of the main outer cylinder and the auxiliary outer cylinder structure of the utility model;

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0022] Markings in the figure: 1-main outer cylinder; 2-mud outlet pipe; 3-drainage pipe; 4-mounting plate; 5-filter screen; 6-auxiliary plate; 7-lifting ring; 8-main spiral blade; 9-motor; 10-auxiliary spiral blade; 11-auxiliary outer cylinder; 12-upper connecting plate; 13-lower connecting plate; 14-through groove; 15-fixed plate; 16-movable groove; 17-positioning groove; 18-positioning plate; 19-operating plate; 20-spring; 21-fastening bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0024] The following will be combined Figure 1-Figure 4 A device for removing silt in a water collection well of a hydropower station according to an embodiment of the utility model is described in detail.

[0025] refer to Figure 1-2 As shown, a silt removal device in a water collection well of a hydropower station comprises a main outer cylinder 1, a mud outlet pipe 2 is connected through the right side of the main outer cylinder 1, and a drainage pipe 3 for drainage is arranged below the mud outlet pipe 2, a mounting plate 4 is fixedly connected above the drainage pipe 3, and the mounting plate 4 is installed below the mud outlet pipe 2 by bolts, and a filter screen 5 is arranged above the inside of the drainage pipe 3.

[0026] refer to Figure 1 As shown, an auxiliary plate 6 for overlapping with the water collection well is arranged above the main outer cylinder 1, and lifting rings 7 for cooperating with the lifting device are arranged on both sides of the top of the auxiliary plate 6. The main outer cylinder 1 is internally rotatably connected with a main spiral blade 8. A motor 9 is arranged on the top of the main outer cylinder 1, and the output end of the motor 9 is fixedly connected to the main spiral blade 8.

[0027] refer to Figure 1 , 3As shown in FIG. 4 , an auxiliary spiral blade 10 is threadedly connected to the lower part of the main spiral blade 8, a threaded rod is fixedly connected to the shaft of the auxiliary spiral blade 10, and the threaded rod is threadedly connected to a threaded hole provided at the lower part of the shaft of the main spiral blade 8, an auxiliary outer cylinder 11 is sleeved on the auxiliary spiral blade 10, an upper connecting plate 12 is fixedly connected to the lower part of the main outer cylinder 1, a lower connecting plate 13 is fixedly connected to the upper part of the auxiliary outer cylinder 11, a through groove 14 is provided inside the upper connecting plate 12, a fixing plate 15 is fixedly connected to the position of the lower connecting plate 13 relative to the through groove 14, and the fixing plate 15 is inserted in the through groove 14, and the height of the fixing plate 15 is greater than the thickness of the upper connecting plate 12. The fixed plate 15 is provided with a movable groove 16 and a positioning groove 17, the movable groove 16 and the positioning groove 17 are connected structures, there are two positioning grooves 17, and the positioning grooves 17 are provided at the front and rear positions above the fixed plate 15 and are connected with the movable groove 16, a group of positioning plates 18 are movably inserted in the movable groove 16 and the positioning groove 17, an operating plate 19 is fixedly connected to the top of the positioning plate 18, and a spring 20 is fixedly connected between the operating plate 19 and the inner wall of the movable groove 16, a fastening bolt 21 is threadedly connected in the front operating plate 19, and a threaded hole used in conjunction with the fastening bolt 21 is provided in the rear operating plate 19.

[0028] The advantages of this application are: it is convenient to better clean the silt in the water collection wells of different depths, and at the same time the cleaned silt can be filtered and processed, so that the water in the silt can be better recovered into the water collection well, which is not easy to cause waste.

[0029] Working principle: When cleaning the silt in the water collection well, select a specified number of auxiliary spiral blades 10 and auxiliary outer cylinders 11 for auxiliary use according to the depth of the water collection well. First, thread the auxiliary spiral blades 10 under the main spiral blades 8 to complete the assembly of the main spiral blades 8 and the auxiliary spiral blades 10. Then, the auxiliary outer cylinder 11 is sleeved on the auxiliary spiral blades 10 so that the lower connecting plate 13 fits with the upper connecting plate 12. At this time, the fixing plate 15 is inserted into the through groove 14, and the upper connecting plate 12 threadedly connected on the operating plate 19 is removed. At this time, the operating plate 19 moves the positioning plate 18 to the fixed position under the action of the spring 20. By pushing the outer side of the positioning groove 17, the positioning plate 18 can be pressed onto the top of the upper connecting plate 12 to position the auxiliary outer cylinder 11, and then the lifting device is cooperated with the lifting ring 7, or the auxiliary plate 6 is overlapped at the wellhead of the water collection well. At this time, the main outer cylinder 1 and the main outer cylinder 1 are inserted into the water collection well, and the motor 9 is started to make the main spiral blade 8 drive the auxiliary spiral blade 10 to rotate. At this time, the sludge in the water collection well enters the mud outlet pipe 2 driven by the main spiral blade 8 and the auxiliary spiral blade 10 for discharge. When the water in the sludge passes through the filter screen 5, the water is transported to the water collection well through the drainage pipe 3.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0032] 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 silt removal device in a water collection well of a hydropower station, comprising a main outer cylinder (1), Features: A mud outlet pipe (2) is connected through the right side of the main outer cylinder (1), and a drainage pipe (3) for drainage is arranged below the mud outlet pipe (2); a main spiral blade (8) is rotatably connected inside the main outer cylinder (1); a motor (9) is arranged on the top of the main outer cylinder (1), and the output end of the motor (9) is fixedly connected to the main spiral blade (8); An auxiliary spiral blade (10) is threadedly connected below the main spiral blade (8), an auxiliary outer cylinder (11) is sleeved on the auxiliary spiral blade (10), an upper connecting plate (12) is fixedly connected below the main outer cylinder (1), and a lower connecting plate (13) is fixedly connected above the auxiliary outer cylinder (11), a through slot (14) is provided inside the upper connecting plate (12), a fixing plate (15) is fixedly connected to the position of the lower connecting plate (13) relative to the through slot (14), and the fixing plate (15) is inserted into the through slot (14), a movable slot (16) and a positioning slot (17) are provided inside the fixing plate (15), and a group of positioning plates (18) are movably inserted inside the movable slot (16) and the positioning slot (17), an operating plate (19) is fixedly connected to the top of the positioning plate (18), and a spring (20) is fixedly connected between the operating plate (19) and the inner wall of the movable slot (16).

2. A silt removal device in a water collection well of a hydropower station as claimed in claim 1, Features: A mounting plate (4) is fixedly connected to the top of the drainage pipe (3), and the mounting plate (4) is mounted below the mud outlet pipe (2) by means of bolts. A filter screen (5) is provided above the interior of the drainage pipe (3).

3. A sludge removal device in a water collection well of a hydropower station as claimed in claim 1, Features: An auxiliary plate (6) for overlapping with the water collection well is arranged above the main outer cylinder (1), and lifting rings (7) for cooperating with the lifting device are arranged on both sides of the top of the auxiliary plate (6).

4. A sludge removal device in a water collection well of a hydropower station as claimed in claim 1, Features: A threaded rod is fixedly connected to the shaft of the auxiliary spiral blade (10), and the threaded rod is threadedly connected to a threaded hole provided below the shaft of the main spiral blade (8).

5. A sludge removal device in a water collection well of a hydropower station as claimed in claim 1, Features: The height of the fixing plate (15) is greater than the thickness of the upper connecting plate (12), and the movable groove (16) and the positioning groove (17) are connected structures.

6. A sludge removal device in a water collection well of a hydropower station as claimed in claim 5, Features: There are two positioning grooves (17), and the positioning grooves (17) are arranged at upper front and rear positions inside the fixed plate (15) and are connected to the movable groove (16).

7. A silt removal device in a water collection well of a hydropower station as claimed in claim 1, Features: A fastening bolt (21) is threadedly connected to the front operating panel (19), and a threaded hole for use with the fastening bolt (21) is provided inside the rear operating panel (19).

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