CN113045155A

CN113045155A - Automatic drying device that clears up of silt for hydraulic engineering

Info

Publication number: CN113045155A
Application number: CN202110435038.1A
Authority: CN
Inventors: 刘奕; 马卫民; 张亚涛; 陈火见; 郑万里
Original assignee: First Engineering Bureau Of Henan Water Conservancy
Current assignee: First Engineering Bureau Of Henan Water Conservancy
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-06-29
Anticipated expiration: 2041-04-22
Also published as: CN113045155B

Abstract

The invention discloses an automatic sludge cleaning and drying device for hydraulic engineering, which comprises a bottom plate, wherein one side of the bottom plate is provided with a control box, a lifting mechanism and a sludge treatment mechanism, the other side of the bottom plate is provided with a mounting plate and a sludge suction mechanism, the sludge treatment mechanism comprises a dewatering box, a filter box and a collecting box, the sludge suction mechanism comprises a movable disc, a first connecting disc, a second connecting disc, a motor and a rotating shaft, the sludge suction mechanism is also provided with a drill bit and a filter screen to crush sludge and filter out impurities in the sludge, the sludge is sucked and discharged into a water seepage plate to be dewatered and then discharged into the collecting box to be sterilized, sterilized and dried, water generated by dewatering treatment is discharged into a water body after being filtered and adsorbed by the filter box, waste of water resources is avoided, the sludge can be taken out and recovered more conveniently and rapidly by arranging a collecting frame, and the automation degree of the whole device, the sludge suction and cleaning and drying treatment effect is good, the efficiency is higher, and the practicability is stronger.

Description

Automatic drying device that clears up of silt for hydraulic engineering

Technical Field

The invention relates to the technical field of cleaning devices, in particular to an automatic sludge cleaning and drying device for hydraulic engineering.

Background

Hydraulic engineering is surface water and groundwater for control and allotment, reach the engineering of removing the evil and promoting the purpose and building, also known as hydraulic engineering, hydraulic engineering needs to build the dam, the sluice, different hydraulic structures such as water inlet, and hydraulic engineering is because of silt is loose insecurity relatively before the building, so need clear up the silt in the water, and impurity in the silt is more relatively including the rubbish plastic bag that the mankind lost and thrown etc. easily, adsorb to silt collecting device and cause the jam, and silt collecting device often needs human steering apparatus to carry out the absorption to the silt in the position of silt, silt collecting device causes certain danger easily when meeting deeper silt position.

Chinese patent discloses a silt cleaning device for hydraulic engineering, this cleaning device is through setting up the base, the suction pipe, cooperation such as suction pump and silt case is realized getting to inhale and clearance function to silt, and extrude silt and realize the dehydration processing function, and has simple structure, advantages such as convenient operation, but, the device is when the in-service use, it is difficult for inhaling to easily meet the silt sclerosis, thoughtlessly have stone in the silt, impurity such as pasture and rubbish and then lead to device inner pipe or part to take place the problem of jam, and the purification treatment form to silt is comparatively single, therefore, the practicality is lower.

Disclosure of Invention

The invention aims to provide an automatic sludge cleaning and drying device for hydraulic engineering, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an automatic sludge cleaning and drying device for hydraulic engineering comprises a bottom plate, wherein a mounting plate is connected to one side of the bottom plate, a sludge treatment mechanism is connected to the middle of the other side of the bottom plate, a lifting mechanism and a control box are respectively arranged on two sides of the sludge treatment mechanism, the lifting mechanism and the control box are both arranged on the other side of the bottom plate, a sludge suction mechanism is arranged on one side of the bottom plate away from the lifting mechanism, the sludge suction mechanism is connected with the lifting mechanism through a lifting rope, the sludge treatment mechanism comprises a dewatering box, a filter box and a collecting box which are respectively arranged on two sides of the dewatering box, the bottoms of the dewatering box, the filter box and the collecting box are fixedly connected with the side of the bottom plate, a drain pipe is arranged at the joint of the filter box and the bottom plate, a partition plate is arranged in the middle of the dewatering box, and a water seepage plate is arranged on, the dewatering box is respectively communicated with the filter box and the collecting box through a water outlet pipe and a sludge discharge groove, a filtering combination layer is arranged in the filter box, an air outlet pipe is arranged at the end part of the collecting box, the sludge suction mechanism comprises a movable disc, a first connecting disc, a second connecting disc, a motor and a rotating shaft, the motor is arranged at one side of the movable disc close to the bottom plate, a protective cover is arranged at the periphery of the motor, the center of the outer side end part of the protective cover is connected with a lifting rope, a cylinder body is fixedly connected at the center of the other side of the movable disc, one end of the cylinder body far away from the movable disc is fixedly connected with the first connecting disc, a sludge suction cylinder and a filter screen cylinder are detachably connected at one end of the first connecting disc far away from the movable disc, a plurality of sludge suction holes which are symmetrically distributed at equal intervals are formed in the wall of the, one end of the filter screen cylinder, which is far away from the first connecting disc, is fixedly connected with the rotating shaft through the connecting sleeve, the other end of the filter screen cylinder is an opening, the first connecting disc is arranged in the opening, the side wall of the first connecting disc is attached to the inner wall of the filter screen cylinder, a rotating shaft is arranged in the cylinder body in an inserting mode, one end of the rotating shaft penetrates through the movable disc and is connected with an output shaft of the motor, the other end of the rotating shaft is connected with one side of the second connecting disc, a drill bit is connected to the other side of the second connecting disc, a first mud suction pipe and a second mud suction pipe are arranged on the movable disc, one ends of the first mud suction pipe and the second mud suction pipe are communicated with an inner cavity of the mud suction cylinder, the other ends of the first mud suction pipe and the second mud suction pipe are respectively communicated with two ends of a semicircular pipe, the middle part of the semicircular pipe is communicated with one end of a, the outer side wall of the dewatering box is provided with a sludge pump, and the other end of the sludge inlet pipe is connected with the sludge pump.

As a further scheme of the invention: the collecting box is internally provided with a collecting frame, the collecting frame is a ladder-type frame which can be pulled out from the outside of the collecting box, one side of the collecting box is provided with a rectangular notch, and a sealing ring is arranged at the joint of the collecting frame and the rectangular notch.

As a still further scheme of the invention: the inner top surface of the collecting box is provided with an ultraviolet lamp, and the inner wall of the other side of the collecting box is provided with a drying plate.

As a still further scheme of the invention: the length and width dimensions of the drying plate are respectively matched with the length and height dimensions of the collecting frame.

As a still further scheme of the invention: the filtering combination layer also comprises a filtering net layer, an active carbon adsorption layer and a filtering sponge layer.

As a still further scheme of the invention: the filter net layer is arranged close to the water outlet pipe, the filter sponge layer is arranged close to the water outlet pipe, and the activated carbon adsorption layer is arranged between the filter net layer and the filter sponge layer.

As a still further scheme of the invention: two positioning holes symmetrically distributed along the central axis in the height direction of the movable disc are formed in the movable disc, positioning rods are arranged in the positioning holes, and one ends of the positioning rods are fixedly connected with the side ends of the bottom plate.

Compared with the prior art, the invention has the beneficial effects that: the automatic sludge cleaning and drying device realizes the suction and cleaning and drying treatment of sludge through the matching of the sludge suction mechanism and the sludge treatment mechanism, the sludge suction mechanism is provided with a drill bit to crush the sludge, and then a filter screen cylinder filters stones, garbage and the like mixed in the sludge, thereby effectively preventing pipelines or parts in the device from being blocked, and further improving the subsequent cleaning and drying work of the sludge through purifying the sludge, the sludge is sucked by a sludge pump and discharged into a water seepage plate for dehydration treatment, and then is discharged into a collecting box for sterilization, disinfection and drying treatment, water generated by the dehydration treatment is discharged into a water body after being filtered and adsorbed by a filter box, the waste of water resources is avoided, the sludge can be more conveniently and quickly taken out and recovered through the arrangement of a collecting frame, the automation degree of the whole device is high, the suction and cleaning and drying treatment effects of the sludge are good, the efficiency is higher, has stronger practicality.

Drawings

Fig. 1 is an overall structure schematic diagram of an automatic sludge cleaning and drying device for hydraulic engineering.

Fig. 2 is a structural schematic diagram of a sludge treatment mechanism in an automatic sludge cleaning and drying device for hydraulic engineering.

Fig. 3 is a schematic structural diagram of a sludge suction mechanism in the automatic sludge cleaning and drying device for hydraulic engineering.

Fig. 4 is an enlarged schematic view of a part a in a structural schematic view of a sludge treatment mechanism of an automatic sludge cleaning and drying device for hydraulic engineering.

Wherein: a bottom plate-1, a mounting plate-2, a sludge treatment mechanism-3, a control box-4, a lifting mechanism-5, a sludge suction mechanism-6, a dewatering box-7, a filter box-8, a collection box-9, a sludge inlet pipe-10, a sludge pump-11, a water seepage plate-12, a partition plate-13, a water outlet pipe-14, a filter screen layer-15, an activated carbon adsorption layer-16, a filter sponge layer-17, a water outlet pipe-18, a sludge discharge groove-19, a collection frame-20, an ultraviolet lamp-21, a drying plate-22, an air outlet pipe-23, a sealing ring-24, a movable disc-25, a protective cover-26, a motor-27, a cylinder-28, a rotating shaft-29, a first connecting disc-30, a first sludge suction pipe-31, a second sludge suction pipe-32, a semicircular pipe-33, a folding pipe-34, a sludge suction cylinder-35, a filter screen cylinder-36, a sludge suction hole-37, a connecting sleeve-38, a second connecting disc-39, a drill bit-40, a positioning hole-41 and a positioning rod-42.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The utility model provides an automatic drying device that clears up of silt for hydraulic engineering, includes as shown in fig. 1 bottom plate 1, one side of bottom plate 1 is connected and is provided with mounting panel 2, the opposite side face middle part of bottom plate 1 is connected and is provided with silt processing mechanism 3, the both sides of silt processing mechanism 3 are equipped with hoisting mechanism 5 and control box 4 respectively, hoisting mechanism 5 and control box 4 all install and set up on the opposite side face of bottom plate 1, one side that hoisting mechanism 5 was kept away from to bottom plate 1 is equipped with inhales mud mechanism 6, it links to each other with hoisting mechanism 5 through lifting rope to inhale mud mechanism 6.

The sludge treatment mechanism 3 comprises a dewatering box 7 as shown in fig. 2, and a filter box 8 and a collection box 9 which are respectively arranged at two sides of the dewatering box 7, the bottoms of the dewatering box 7, the filter box 8 and the collection box 9 are fixedly connected with the side end of the bottom plate 1, a drain pipe 18 is arranged at the joint of the filter box 8 and the bottom plate 1, a partition plate 13 is arranged in the middle of the dewatering box 7, a water seepage plate 12 is arranged at one side, away from the bottom plate 1, of the partition plate 13, the dewatering box 7 is respectively communicated with the filter box 8 and the collection box 9 through a water outlet pipe 14 and a sludge discharge groove 19, a filtering combination layer is arranged in the filter box 8, and an air outlet pipe 23 is arranged.

The mud absorbing mechanism 6 comprises a movable disc 25, a first connecting disc 30, a second connecting disc 39, a motor 27 and a rotating shaft 29 as shown in fig. 3, wherein the motor 27 is installed at one side of the movable disc 25 close to the bottom plate 1, a protective cover 26 is installed at the periphery of the motor 27, the center of the outer end of the protective cover 26 is connected with a lifting rope, a cylinder body 28 is fixedly connected at the center of the other side of the movable disc 25, the first connecting disc 30 is fixedly connected at one end of the cylinder body 28 far away from the movable disc 25, a mud absorbing cylinder 35 is detachably connected at one end of the first connecting disc 30 far away from the movable disc 25, a plurality of mud absorbing holes 37 which are symmetrically distributed at equal intervals are formed in the cylinder wall of the mud absorbing cylinder 35, a filter screen cylinder 36 is sleeved at the periphery of the mud absorbing cylinder 35, and one end of the filter screen cylinder 36 far away from the first connecting disc 30 is fixedly connected with, the other end of the filter screen cylinder 36 is an opening, the first connecting disc 30 is arranged in the opening, the side wall of the first connecting disc 30 is attached to the inner wall of the filter screen cylinder 36, the rotating shaft 29 is inserted into the cylinder 28, one end of the rotating shaft 29 penetrates through the movable disc 25 and is connected with the output shaft of the motor 27, the other end of the rotating shaft 29 is connected with one side of the second connecting disc 39, the other side of the second connecting disc 39 is connected with the drill bit 40, the movable disc 25 is provided with the first sludge suction pipe 31 and the second sludge suction pipe 32, one end of the first sludge suction pipe 31 and one end of the second sludge suction pipe 32 are communicated with the inner cavity of the sludge suction cylinder 35, the other end of the first sludge suction pipe 31 and the other end of the second sludge suction pipe 32 are respectively communicated with the two ends of the semicircular pipe 33, the middle part of the semicircular pipe 33 is communicated with one end of the folding pipe 34 shown in fig. 1, and the other end of the folding pipe 34, the outer side wall of the dewatering box 7 is provided with a sludge pump 11, and the other end of the sludge inlet pipe 10 is connected with the sludge pump 11.

Specifically, referring to fig. 2 and 4, a collecting frame 20 is arranged in the collecting box 9, the collecting frame 20 is a ladder-shaped frame which can be pulled out from the outside of the collecting box 9, a rectangular notch is formed in one side of the collecting box 9, a sealing ring 24 is arranged at the joint of the collecting frame 20 and the rectangular notch, the sealing performance of the collecting box 9 is ensured through the sealing ring 24 to prevent gas from being released, an ultraviolet lamp 21 is arranged on the inner top surface of the collecting box 9, a drying plate 22 is arranged on the inner wall of the other side of the collecting box 9, the length and the width of the drying plate 22 are respectively matched with the length and the height of the collecting frame 20, so that the drying plate 22 can comprehensively perform drying treatment on sludge in the collecting frame 20, further, the filtering combination layer further comprises a filtering mesh layer 15, an activated carbon adsorption layer 16 and a filtering sponge layer 17, the filtering mesh layer 15 is arranged close to the water outlet pipe 14, the filtering sponge layer 17 is arranged close to the drain pipe 18, the activated carbon adsorption layer 16 is arranged between the filtering net layer 15 and the filtering sponge layer 17, and water discharged from the water outlet pipe 14 sequentially passes through the filtering net layer 15, the activated carbon adsorption layer 16 and the filtering sponge layer 17 to be filtered step by step, so that the filtering effect is further improved.

When the device is used, the device is firstly installed on a vehicle body or a ship body for work through the installation plate 2, a rechargeable power supply and a control panel are arranged in the control box 4, the top end of the control box 4 is provided with an operation panel, all functional electric parts and the operation panel of the device are linearly connected with the power supply and the control panel through electric wires arranged in the device, the lifting mechanism 5 is operated and controlled through the control box 4 to put the sludge suction mechanism 6 to a proper height position above sludge, then the control motor 27 is started to rotate the rotating shaft 29, the rotating shaft 29 rotates to drive the filter screen cylinder 36 and the drill bit 40 to rotate, at the moment, the drill bit 40 is slowly put down to crush the sludge, other impurities such as stones and garbage mixed in the sludge are filtered through the filter screen cylinder 36, then the sludge pump 11 is controlled to be started to suck the sludge into the sludge suction cylinder 35 from the sludge suction hole 37, sludge sucked into the sludge suction barrel 35 is discharged onto the water seepage plate 12 for dehydration treatment after sequentially passing through the first sludge suction pipe 31, the second sludge suction pipe 32, the semicircular pipe 33, the folding pipe 34 and the sludge inlet pipe 10, the sludge after dehydration treatment flows into the sludge discharge groove 19 along the water seepage plate 12 and is finally discharged into the collection frame 20 for collection, water generated by dehydration treatment is discharged into the filter box 8 through the water outlet pipe 14 and is discharged into a water body through the water discharge pipe 18 after being filtered and adsorbed by the filter screen layer 15, the activated carbon adsorption layer 16 and the filter sponge layer 17, the sludge in the collecting frame 20 is sterilized by the ultraviolet lamp 21 and then dried by the drying plate 22, after the sterilizing and drying treatment, the air outlet pipe 23 is opened by the control valve on the air outlet pipe 23 to discharge the gas in the collecting box 9, then, the sludge in the collection frame 20 can be recovered by drawing the collection frame 20 out of the collection tank 9.

Example two

On the basis of embodiment 1, although the sludge can be well crushed and sucked for subsequent treatment, the movable disc 25 is easy to shake during the vertical movement, and the working stability of the sludge suction mechanism 6 is further affected, therefore, two positioning holes 41 symmetrically distributed along the central axis of the movable disc 25 in the height direction are formed in the movable disc 25 as shown in fig. 1, positioning rods 42 are respectively arranged in the positioning holes 41, and one end of each positioning rod 42 is fixedly connected with the side end of the bottom plate 1.

The length dimension of locating lever 42 and the length dimension size phase-match of lifting rope, make mud suction mechanism 6 can keep ascending stability of horizontal direction when removing through the cooperation of locating lever 42 and locating hole 41, and then guarantee that whole device operating condition remains stable.

To sum up, the automatic sludge cleaning and drying device realizes the suction and cleaning and drying treatment of sludge through the cooperation of the sludge suction mechanism 6 and the sludge treatment mechanism 3, the sludge suction mechanism 6 is provided with a drill 40 to crush the sludge, and then the filter screen cylinder 36 filters stones, garbage and the like mixed in the sludge, so that the blockage of pipelines or parts in the device can be effectively prevented, the subsequent cleaning and drying work of the sludge can be further improved through purifying the sludge, the sludge is sucked by the sludge pump 11 and discharged into the water seepage plate 12 to be dehydrated and then discharged into the collecting box 9 to be sterilized, disinfected and dried, water generated by the dehydration treatment is filtered and adsorbed by the filtering box 8 and then discharged into the water body, the waste of water resources is avoided, the sludge can be taken out and recovered more conveniently and more rapidly through the arrangement of the collecting frame 20, the automatic degree of the whole device is high, the sludge suction and cleaning and drying treatment effect is good, the efficiency is higher, and the practicability is stronger.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides an automatic drying device that clears up of silt for hydraulic engineering, includes bottom plate (1), its characterized in that, one side of bottom plate (1) is connected and is provided with mounting panel (2), the opposite side face middle part of bottom plate (1) is connected and is provided with silt processing mechanism (3), the both sides of silt processing mechanism (3) are equipped with respectively and lift by crane mechanism (5) and control box (4), it all installs the setting on the opposite side face of bottom plate (1) to lift by crane mechanism (5) and control box (4), one side that lifting mechanism (5) were kept away from in bottom plate (1) is equipped with inhales mud mechanism (6), it links to each other with lifting mechanism (5) through lifting rope to inhale mud mechanism (6), silt processing mechanism (3) are including dehydration case (7) and set up rose box (8) and collecting box (9) in dehydration case (7) both sides respectively, dehydration case (7), The bottom of the filter box (8) and the bottom of the collection box (9) are fixedly connected with the side end of the bottom plate (1), a drain pipe (18) is arranged at the joint of the filter box (8) and the bottom plate (1), a partition plate (13) is arranged in the middle of the dewatering box (7), a water seepage plate (12) is arranged on one side, away from the bottom plate (1), of the partition plate (13), the dewatering box (7) is communicated with the filter box (8) and the collection box (9) through a drain pipe (14) and a sludge discharge groove (19) respectively, a filtering combination layer is arranged in the filter box (8), an air outlet pipe (23) is arranged at the end of the collection box (9), the sludge suction mechanism (6) comprises a movable disc (25), a first connecting disc (30), a second connecting disc (39), a motor (27) and a rotating shaft (29), the motor (27) is arranged on one side, close to the bottom plate (, the mud suction device is characterized in that a protective cover (26) is arranged on the periphery of the motor (27), the center of the outer end of the protective cover (26) is connected with a lifting rope, a cylinder body (28) is fixedly connected to the center of the other side of the movable disc (25), a first connecting disc (30) is fixedly connected to one end, far away from the movable disc (25), of the cylinder body (28), a mud suction cylinder (35) and a filter screen cylinder (36) are detachably connected to one end, far away from the movable disc (25), of the first connecting disc (30), a plurality of mud suction holes (37) which are symmetrically distributed at equal intervals are formed in the wall of the mud suction cylinder (35), the filter screen cylinder (36) is sleeved on the periphery of the mud suction cylinder (35), one end, far away from the first connecting disc (30), of the filter screen cylinder (36) is fixedly connected with the rotating shaft (29) through a connecting sleeve (38), and the other end of the filter screen, the mud filter is characterized in that the first connecting disc (30) is arranged in the opening, the side wall of the first connecting disc (30) is attached to the inner wall of the filter screen cylinder (36), a rotating shaft (29) is arranged in the cylinder body (28) in an inserting mode, one end of the rotating shaft (29) penetrates through the movable disc (25) and is connected with an output shaft of the motor (27), the other end of the rotating shaft (29) is connected with one side of the second connecting disc (39), the other side of the second connecting disc (39) is connected with the drill bit (40), the movable disc (25) is provided with a first mud suction pipe (31) and a second mud suction pipe (32), one ends of the first mud suction pipe (31) and the second mud suction pipe (32) are communicated with the inner cavity of the mud suction cylinder (35), the other ends of the first mud suction pipe (31) and the second mud suction pipe (32) are respectively communicated with two ends of the semicircular pipe (33), and the middle of the semicircular pipe (33) is communicated with one end of the folding pipe, the other end of the folding pipe (34) is communicated with one end of the sludge inlet pipe (10), the outer side wall of the dewatering box (7) is provided with a sludge pump (11), and the other end of the sludge inlet pipe (10) is connected with the sludge pump (11).

2. The automatic sludge cleaning and drying device for the water conservancy project according to claim 1, wherein a collecting frame (20) is arranged in the collecting box (9), the collecting frame (20) is a ladder-shaped frame capable of being pulled out from the outside of the collecting box (9), a rectangular notch is formed in one side of the collecting box (9), and a sealing ring (24) is arranged at the joint of the collecting frame (20) and the rectangular notch.

3. The automatic sludge cleaning and drying device for the water conservancy project according to claim 2, wherein an ultraviolet lamp (21) is arranged on the inner top surface of the collecting box (9), and a drying plate (22) is arranged on the inner wall of the other side of the collecting box (9).

4. The automatic sludge cleaning and drying device for the water conservancy project is characterized in that the length and the width of the drying plate (22) are respectively matched with the length and the height of the collecting frame (20).

5. The automatic sludge cleaning and drying device for the water conservancy project according to claim 1, wherein the filtering combination layer further comprises a filtering net layer (15), an activated carbon adsorption layer (16) and a filtering sponge layer (17).

6. The automatic sludge cleaning and drying device for the water conservancy project according to claim 5, wherein the filter screen layer (15) is arranged close to the water outlet pipe (14), the filter sponge layer (17) is arranged close to the water outlet pipe (18), and the activated carbon adsorption layer (16) is arranged between the filter screen layer (15) and the filter sponge layer (17).

7. The automatic sludge cleaning and drying device for the water conservancy project according to claim 1, wherein the movable disc (25) is provided with two positioning holes (41) symmetrically distributed along a central axis of the movable disc (25) in the height direction, positioning rods (42) are arranged in the positioning holes (41), and one end of each positioning rod (42) is fixedly connected with the side end of the bottom plate (1).