Rotational flow desilting device for water conservancy project

Abstract

The invention provides a rotational flow desilting device for hydraulic engineering, and relates to the technical field of desilting devices.The rotational flow desilting device comprises a circular water tank and a stirring rolling frame, an annular sand blocking cover is arranged in the peripheral space of the circular water tank in a sleeved mode, and an annular sand guide groove is formed between the annular sand blocking cover and the circular water tank at intervals; a circle of vertical sand throwing groove is formed in the circumferential side wall of the circular water tank in a penetrating mode, and a water flow cutting mechanism sliding up and down is installed on the annular sand guiding groove. Under the centrifugal action of the rotational flow, gravel and a part of water in the water body are thrown to the circumferential side wall of the circular water tank and are thrown into the annular sand guide groove through the circle of vertical sand throwing grooves, and the water flow cutting mechanism is used for intercepting and cutting impact water flow thrown out of the circle of vertical sand throwing grooves. The two L-shaped dowel bars have the use effect of one device with two purposes, and the use effect of one device with two purposes can omit the need of additionally arranging an extraction part for a circle of water cutting frame, so that the structure of the desilting device is simplified, and the overall manufacturing cost of the desilting device is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sand settling devices, and in particular to a cyclone sand settling device for water conservancy projects. Background Art

[0002] The cyclone sedimentation device is a kind of equipment widely used in water treatment and solid particle separation, especially suitable for sediment separation in water conservancy projects.

[0003] Most existing sand settling devices lack a structure that can shorten the length and time of rolling friction between the sand and the inner wall of the water tank. As a result, the sand and the inner wall of the water tank will be in contact and friction for a long distance and a long time after being thrown out of the water. This greatly increases the wear on the water tank, greatly shortens the service life of the water tank, and significantly increases the replacement and maintenance costs of the water tank, which is not conducive to reducing the overall operation and maintenance costs of the sand settling device.

[0004] Although some sand settling devices are equipped with slots on the water tank that can discharge the sand and gravel thrown out by the centrifuge in time, which can shorten the rolling friction distance and time between the sand and gravel and the water tank and avoid the above problems, most of them lack a mechanism that can cut and intercept the sand and gravel and water flow thrown out from the slot. As a result, the discharged sand and gravel will continue to rotate in the container that intercepts the discharged sand and gravel under the rotation impact of the discharged water flow, and cause excessive wear on the inner wall of the interception container, which will also increase the replacement and maintenance cost of the interception container, which is not conducive to reducing the overall operation and maintenance cost of the sand settling device. Summary of the invention

[0005] In view of this, the present invention provides a cyclone sedimentation device for water conservancy projects to solve the problem of being unfavorable for reducing the overall operation and maintenance cost of the sedimentation device.

[0006] The technical solution proposed by the present invention is: a cyclone sedimentation device for water conservancy projects, specifically comprising: a circular water tank and a stirring roller frame, wherein the circular water tank is provided with a stirring roller frame for rotating inside, and the stirring roller frame is used for rotating and stirring the water body containing sand and gravel inside the circular water tank and causing the water body to form a high-speed rotating cyclone;

[0007] An annular sand trap is installed in the peripheral space of the circular water tank, an annular sand guide groove is formed between the annular sand trap and the circular water tank, a circle of vertical sand throwing grooves is penetrated through the circumferential side wall of the circular water tank, and a water flow cutting mechanism that slides up and down is installed in the annular sand guide groove; under the centrifugal action of the vortex, sand and part of the water in the water body are thrown toward the circumferential side wall of the circular water tank, and thrown out into the annular sand guide groove through a circle of vertical sand throwing grooves, and the water flow cutting mechanism is used to intercept and cut the impact water flow thrown out from the circle of vertical sand throwing grooves;

[0008] The top opening of the circular water tank is sealed with a cover plate, and a driving device for rotating and driving the stirring roller frame is fixedly installed at the top center of the cover plate. A rotating driving mechanism is arranged above the driving device, which utilizes the driving force of the driving device to drive the water flow cutting mechanism to slide up and down.

[0009] Furthermore, the water flow cutting mechanism comprises: a retaining ring, a semicircular stress ring, a vertical installation shaft, and a water cutting frame. A circle of vertical installation shafts is welded on the bottom side of the retaining ring. The vertical installation shafts are arranged in groups of two. A water cutting frame is slidably mounted between two vertical installation shafts on each group of vertical installation shafts. A circle of semicircular stress ring is welded on the top of the retaining ring.

[0010] The water cutting frame is composed of a row of arc-shaped water cutting rods arranged at equal intervals in the upper and lower parts and a row of vertical support connecting shafts welded between the middle sections of the row of arc-shaped water cutting rods. Both ends of the row of arc-shaped water cutting rods are provided with U-shaped slide grooves, and the U-shaped slide grooves are slidably matched with the vertical installation shafts. The two ends of the bottommost arc-shaped water cutting rod are fixed to the bottom ends of the two vertical installation shafts by bolts.

[0011] Furthermore, a circle of the vertical installation shafts and a circle of water cutting frames are distributed in the annular sand guide groove, a circle of arc-shaped water cutting rods and a circle of vertical sand throwing grooves are directly opposite to each other inside and outside, and an empty gap is formed between the two.

[0012] Furthermore, an annular opening is formed between the top portion of the circumferential side wall of the circular water tank and the top portion of the annular sand retaining cover, the annular opening is sealed with an annular cover plate, the top portion of a circle of vertical mounting shafts penetrates and slides with the annular cover plate, and the retaining ring is located above the annular cover plate;

[0013] Three groups of vertical mounting shafts arranged at intervals of 120 degrees from the line connecting the center of the cover plate are all equipped with springs, and the spring compression clips are placed between the retaining ring and the annular cover plate;

[0014] Two limit blocks are symmetrically welded to the top end of the vertical installation shaft. When the vertical installation shaft slides upward, the two limit blocks abut against the bottom side of the cover plate.

[0015] Furthermore, the rotary drive mechanism includes: a rotating component and an L-shaped force transmission rod. The rotating component is composed of a sleeve, two mounting blocks symmetrically welded to the top end of the outer periphery of the sleeve, and a swivel welded to the bottom of the two mounting blocks. Two L-shaped force transmission rods are symmetrically rotatably connected to one end of the two mounting blocks away from the sleeve.

[0016] Furthermore, the rotary drive mechanism further comprises: an L-shaped slide plate, a threaded propulsion shaft, a threaded ring, a connecting rod and a pull rod;

[0017] A circle of vertical support shafts are welded to the top of the annular cover plate, and a track ring is welded to the top of the circle of vertical support shafts. Two L-shaped slide plates are symmetrically slidably mounted on the track ring, and two connecting rods are symmetrically rotatably connected between the bent parts of the two L-shaped slide plates and the head ends of the two L-shaped force transmission rods;

[0018] The inner circumference of the track ring is provided with an annular track groove with a T-shaped cross section. The end of the L-shaped slide plate facing the track ring is T-shaped and slides with the annular track groove. The bottom end of the L-shaped slide plate is rotatably mounted with a vertically arranged top pressure wheel.

[0019] The driving device is composed of a motor and a reducer. A vertically arranged driving shaft is rotatably installed through the center of the reducer. The top of the driving shaft is connected to a vertically supported threaded propulsion shaft through a coupling. A threaded ring is screwed onto the threaded section of the threaded propulsion shaft. Two pull rods are symmetrically rotatably connected between the threaded ring and the parts of the two L-shaped force transmission rods close to the sleeve. The bottom end of the driving shaft is fitted through the cover plate and is connected to the top of the stirring roller frame shaft through a coupling.

[0020] Furthermore, when the pressing wheel rolls and abuts against the top of the retaining ring, the pressing wheel presses and abuts against a circle of semicircular force-bearing rings in sequence as it rolls along the retaining ring;

[0021] A limit frame is fixedly installed on the top of the reducer, and the limit frame is composed of a limit ring and two vertical support rods symmetrically welded to the bottom of the limit ring. A track ring groove is opened on the outer periphery of the rotating ring, and the track ring groove is rotatably matched with the limit ring;

[0022] A locking bolt is screwed and installed through the peripheral wall of the limiting ring.

[0023] Furthermore, the bottom side of the threaded propulsion shaft is a hexagonal structure, and a hexagonal slot is provided through the shaft sleeve, the hexagonal slot is inserted and matched with the hexagonal rod section of the threaded propulsion shaft, and the aperture of the hexagonal slot is larger than the rod diameter of the hexagonal rod section of the threaded propulsion shaft;

[0024] The portion of the hexagonal rod section of the threaded propulsion shaft below the shaft sleeve is slidably sleeved with a hexagonal transmission rod sleeve and a sliding sleeve at intervals up and down, and a tightening bolt is screwed and installed through the peripheral wall of the sliding sleeve, and the head end of the tightening bolt is pressed against the hexagonal rod section of the threaded propulsion shaft;

[0025] When the transmission rod sleeve slides upward, it is plugged into the hexagonal slot, and a limiting ring is welded at the bottom of the transmission rod sleeve. A tension spring that is plugged into the hexagonal rod section of the threaded propulsion shaft is connected between the limiting ring and the sliding sleeve. When the limiting ring slides upward with the transmission rod sleeve, it comes into contact with the shaft sleeve.

[0026] Furthermore, when the two L-shaped force transmission rods are swung to a horizontal state, they are used to transmit the rotational driving force of the rotating assembly to the two L-shaped slide plates. When the two L-shaped force transmission rods are swung upward, they are used to pull the annular cover plate upward to extract a circle of water cutting racks from the annular sand guide groove for disassembly and replacement.

[0027] When a circle of the water cutting rack is extracted, the head end of the locking bolt is pressed against the peripheral wall of the track ring groove.

[0028] Furthermore, a water outlet pipe and a water inlet pipe are welded on the circumferential side wall of the circular water tank at intervals, the water outlet pipe and the water inlet pipe are arranged to be inclined toward each other and are both penetrated and welded to the annular sand retaining cover;

[0029] The bottoms of the circular water tank and the annular sand-trapping cover are respectively welded with a conical guide cover and a conical sand guide cover, the conical sand guide cover is sleeved in the peripheral space of the conical guide cover, and a conical sand guide ring groove is formed between the two;

[0030] A circle of vertical hanging shafts is welded on the bottom opening of the conical guide cover, and a sand settling box is welded at the bottom of the circle of vertical hanging shafts. The sand settling box is a top opening and bottom blocking structure, and a sand discharge pipe with a valve is welded at the bottom center of the sand settling box.

[0031] The bottom opening of the conical sand guide cover is welded and fixed to the top opening of the sand settling box, and a circle of sand inlet troughs is formed between a circle of vertical hanging shafts.

[0032] The invention provides a cyclone sedimentation device for water conservancy projects, which has the following beneficial effects:

[0033] 1. When the sand and gravel in the water body are thrown to the circumferential side wall of the circular water tank under the centrifugal action of the vortex, the water body and the sand and gravel mixed therein can be separated, and after the sand and gravel are thrown out, they roll along the circumferential side wall of the circular water tank under the action of the vortex. At this time, a circle of vertical sand throwing troughs can timely discharge the thrown sand and gravel into the annular sand guide trough, which can effectively shorten the rolling friction distance and time between the thrown sand and gravel and the circumferential side of the circular water tank, greatly reduce the wear of the circular water tank by sand and gravel, significantly improve the life of the circular water tank, and help to reduce the operation and maintenance cost of the sand settling device as a whole.

[0034] 2. A circle of water cutting frames corresponds to a circle of vertical sand throwing troughs one by one and is intercepted at the discharge side of a circle of vertical sand throwing troughs. Through the arc-shaped water cutting rod, a circle of water cutting frames follows the retaining ring and a circle of vertical installation shafts to slide up and down, which can cut and intercept the impact water flow thrown out through a circle of vertical sand throwing troughs, destroy the vortex effect of the impact water flow, and avoid the sand and stone thrown out through a circle of vertical sand throwing troughs from continuously rotating in the annular sand guide trough under the vortex effect of the impact water flow and rolling and frictionally contacting with the inner wall of the annular sand retaining cover, causing excessive wear on the annular sand retaining cover. This can effectively extend the service life of the annular sand retaining cover, reduce the replacement and maintenance cost of the annular sand retaining cover, and can also reduce the operation and maintenance cost of the sand settling device as a whole.

[0035] 3. When driving a circle of water cutting racks up and down, it is necessary to plug and match the transmission rod sleeve with the hexagonal slot to connect the threaded propulsion shaft with the rotating component. This allows the rotating component to be driven to rotate by a driving device that drives the stirring roller frame in rotation, so that the retaining ring and the circle of water cutting racks can be driven by the driving force of the driving device. This eliminates the need to additionally configure an up and down sliding drive device for the circle of water cutting racks, which helps to reduce the overall cost and energy consumption of the sand settling device.

[0036] Fourth, the two L-shaped force transmission rods can be used as power transmission components between the rotating assembly and the two L-shaped slides, and can also be used as components for extracting a circle of water cutting racks upwards, having a dual-purpose effect. This can save the need to additionally configure an extraction component for a circle of water cutting racks, help to simplify the structure of the sand settling device and further reduce the overall cost of the sand settling device.

[0037] 5. The upward swing extraction action and downward swing reset installation action of the two L-shaped force transmission rods can be rotationally driven by the driving device, which can save the need to configure an additional extraction and downward insertion installation drive unit for a circle of water cutting frames, which helps to further reduce the cost and energy consumption of the sand settling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0039] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0040] Figure 1 The overall structural diagram of the present invention is shown;

[0041] Figure 2 A schematic diagram of the half-section internal structure of the annular sand-trapping cover and the conical sand-guiding cover in the present invention is shown;

[0042] Figure 3 A schematic diagram showing the installation position of the water cut-off rack in the present invention is shown;

[0043] Figure 4 The schematic diagram of the structure of the circular water tank in the present invention is shown;

[0044] Figure 5 The schematic diagram of the structure of the vertical installation shaft and the water cutting frame in the present invention is shown;

[0045] Figure 6 A schematic diagram of the half-section internal structure of a circular water tank and a sand settling box in the present invention is shown;

[0046] Figure 7 A schematic diagram showing the installation position of the L-shaped slide plate in the present invention is shown;

[0047] Figure 8 A schematic diagram of a half-section structure of a track ring in the present invention is shown;

[0048] Fig. 9 The structure schematic diagram of the rotating assembly in the present invention is shown;

[0049] Fig.10 A schematic diagram showing the disassembly state of the positioning frame and the transmission rod sleeve in the present invention is shown;

[0050] Fig.11 A schematic diagram of a half-section structure of a shaft sleeve and a swivel in the present invention is shown;

[0051] Fig.12 The schematic diagram of the structure of the arc-shaped water cutting rod and the vertical support connecting shaft in the present invention is shown.

[0052] List of reference numerals:

[0053] 1. Circular water tank; 101. Water inlet pipe; 102. Water outlet pipe; 103. Cover plate; 104. Conical guide cover; 105. Vertical hanging shaft; 106. Sand inlet trough; 107. Vertical sand throwing trough;

[0054] 2. Sand settling box; 201. Sand discharge pipe;

[0055] 3. Annular sand-trapping cover; 301. Conical sand-guiding cover; 302. Annular cover plate; 303. Vertical support shaft; 304. Track ring; 3041. Annular track groove; 305. L-shaped slide plate; 3051. Top pressure wheel; 306. Annular sand-guiding groove; 307. Conical sand-guiding ring groove;

[0056] 4. Support seat;

[0057] 5. Driving device; 501. Driving shaft; 502. Threaded propulsion shaft; 503. Threaded ring; 504. Sliding sleeve; 5041. Jacking bolt; 505. Transmission rod sleeve; 5051. Limiting ring; 506. Tension spring; 507. Limiting frame; 5071. Limiting ring; 5072. Vertical support rod; 5073. Locking bolt;

[0058] 6. Retaining ring; 601. Semicircular stress ring; 602. Vertical installation shaft; 6021. Limit block; 603. Water cutter frame; 6031. Arc-shaped water cutter rod; 6032. Vertical support connecting shaft;

[0059] 7. Rotating assembly; 701. Bushing; 7011. Mounting block; 7012. Hexagonal slot; 703. Swivel; 7031. Track ring groove; 704. L-shaped force transmission rod; 705. Connecting rod; 706. Pull rod;

[0060] 8. Mixing roller rack. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0062] The following is an embodiment of the present invention, please refer to Figures 1 to 12 :

[0063] The present invention proposes a cyclone sedimentation device for water conservancy projects, comprising: a circular water tank 1 and a stirring roller 8 (such as Figure 4 As shown), a stirring roller frame 8 is rotatably provided inside the circular water tank 1, and the stirring roller frame 8 is used to rotate and stir the water body containing sand and gravel inside the circular water tank 1 and cause the water body to form a high-speed rotating vortex;

[0064] An annular sand trap 3 is installed in the peripheral space of the circular water tank 1, and an annular sand guide groove 306 is formed between the annular sand trap 3 and the circular water tank 1. A circle of vertical sand throwing grooves 107 is formed on the circumferential side wall of the circular water tank 1, and the annular sand guide groove 306 is installed with a water flow cutting mechanism that slides up and down; under the centrifugal action of the swirling flow, sand and part of the water in the water body are thrown toward the circumferential side wall of the circular water tank 1, and thrown out into the annular sand guide groove 306 through a circle of vertical sand throwing grooves 107, and the water flow cutting mechanism is used to intercept and cut the impact water flow thrown out from the circle of vertical sand throwing grooves 107;

[0065] When the sand and stones in the water body are thrown towards the circumferential side wall of the circular water tank 1 under the centrifugal action of the swirling flow, the separation of the water body and the sand and stones doped therein can be realized. After being thrown out, the sand and stones roll along the circumferential side wall of the circular water tank 1 under the action of the swirling flow. A circle of vertical sand throwing grooves 107 can timely drain the thrown sand and stones into the annular sand guiding groove 306, which can effectively shorten the rolling friction distance and time between the thrown sand and stones and the circumferential side of the circular water tank 1, greatly reduce the wear of the circular water tank 1 by the sand and stones, significantly improve the service life of the circular water tank 1, and is conducive to reducing the operation and maintenance cost of the sedimentation device as a whole;

[0066] The top opening of the circular water tank 1 is sealed with a cover plate 103. At the center of the top end of the cover plate 103, a driving device 5 for rotating and driving the stirring roller frame 8 is fixedly installed. Above the driving device 5, there is a rotary driving mechanism for driving the water flow cutting mechanism to slide up and down by using the driving force of the driving device 5.

[0067] Preferably, the water flow cutting mechanism (as shown in Figure 4 and 12 ) includes: a retaining ring 6, a semi-circular stress ring 601, a vertically installed shaft 602, and a water cutting frame 603. A circle of vertically installed shafts 602 is welded to the bottom side of the retaining ring 6. The vertically installed shafts 602 are arranged in pairs. A water cutting frame 603 is slidably assembled between two vertically installed shafts 602 in each group of vertically installed shafts 602. A circle of semi-circular stress rings 601 is welded to the top end of the retaining ring 6;

[0068] The water cutting frame 603 is jointly composed of a row of arc-shaped water cutting rods 6031 arranged at equal intervals up and down and a row of vertical support connecting shafts 6032 welded between the middle sections of a row of arc-shaped water cutting rods 6031. U-shaped sliding grooves are opened at both ends of a row of arc-shaped water cutting rods 6031. The U-shaped sliding grooves are slidably matched with the vertically installed shafts 602. The two ends of the lowermost arc-shaped water cutting rod 6031 are fixedly locked with the bottom ends of the two vertically installed shafts 602 by bolts.

[0069] Preferably, a circle of vertically installed shafts 602 and a circle of water cutting frames 603 are distributed in the annular sand guiding groove 306. A circle of arc-shaped water cutting rods 6031 and a circle of vertical sand throwing grooves 107 are正对 inside and outside, and there is a vacant gap between them;

[0070] A circle of water cutting frames 603 corresponds to a circle of vertical sand throwing troughs 107 one by one and is intercepted at the discharge side of a circle of vertical sand throwing troughs 107. Through the arc-shaped water cutting rod 6031, a circle of water cutting frames 603 can cut and intercept the impact water flow thrown out by a circle of vertical sand throwing troughs 107 when following the retaining ring 6 and a circle of vertical installation shafts 602 to slide up and down, thereby destroying the vortex effect of the impact water flow, and preventing the sand and stones thrown out by a circle of vertical sand throwing troughs 107 from continuously rotating in the annular sand guide trough 306 under the vortex effect of the impact water flow and rolling frictionally contacting with the inner wall of the annular sand trap 3, causing excessive wear on the annular sand trap 3. This can effectively extend the service life of the annular sand trap 3, reduce the replacement and maintenance cost of the annular sand trap 3, and can also reduce the operation and maintenance cost of the sand settling device as a whole.

[0071] The bolts on the bottom end of the two vertical installation shafts 602 can be loosened by rotating to allow the water cutter frame 603 that has been worn out to be slid down between the two vertical installation shafts 602 for replacement.

[0072] Preferably, an annular opening is formed between the top portion of the circumferential side wall of the circular water tank 1 and the top portion of the annular sand retaining cover 3, and the annular opening is sealed and covered with an annular cover plate 302, and the top portion of a circle of vertical mounting shafts 602 penetrates and slides with the annular cover plate 302, and the retaining ring 6 is located above the annular cover plate 302;

[0073] Three groups of vertical mounting shafts 602 arranged at intervals of 120 degrees from the line connecting the center of the cover plate 103 are all equipped with springs, and the spring compression clips are placed between the retaining ring 6 and the annular cover plate 302;

[0074] Two limit blocks 6021 are symmetrically welded to the top portion of the vertical installation shaft 602 . When the vertical installation shaft 602 slides upward, the two limit blocks 6021 abut against the bottom side of the cover plate 103 .

[0075] Preferably, the rotary drive mechanism (such as Figures 9 to 11 The rotating assembly 7 is composed of a shaft sleeve 701, two mounting blocks 7011 symmetrically welded to the top end of the outer periphery of the shaft sleeve 701, and a swivel 703 welded to the bottom of the two mounting blocks 7011. The two mounting blocks 7011 are symmetrically rotatably connected to two L-shaped force transmission rods 704 at one end away from the shaft sleeve 701.

[0076] Preferably, the rotary drive mechanism (such as Figures 7 to 10 ) further includes: an L-shaped slide plate 305, a threaded propulsion shaft 502, a threaded ring 503, a connecting rod 705 and a pull rod 706;

[0077] A circle of vertical support shafts 303 are welded to the top of the annular cover plate 302, and a track ring 304 is welded to the top of the circle of vertical support shafts 303. Two L-shaped slide plates 305 are symmetrically slidably mounted on the track ring 304, and two connecting rods 705 are symmetrically rotatably connected between the bent parts of the two L-shaped slide plates 305 and the head ends of the two L-shaped force transmission rods 704;

[0078] The inner circumference of the track ring 304 is provided with an annular track groove 3041 with a T-shaped cross section. The end of the L-shaped slide plate 305 facing the track ring 304 is T-shaped and slidably cooperates with the annular track groove 3041. The bottom end of the L-shaped slide plate 305 is rotatably mounted with a vertically arranged top pressing wheel 3051.

[0079] The driving device 5 is composed of a motor and a reducer. A vertically arranged driving shaft 501 is rotatably installed through the center of the reducer. The top of the driving shaft 501 is connected to a vertically supported threaded propulsion shaft 502 through a coupling. A threaded ring 503 is screwed on the threaded section of the threaded propulsion shaft 502. Two pull rods 706 are symmetrically rotatably connected between the threaded ring 503 and the parts of the two L-shaped force transmission rods 704 close to the shaft sleeve 701. The bottom end of the driving shaft 501 is fitted through the cover plate 103 and is connected to the top of the rotating shaft of the stirring roller frame 8 through a coupling.

[0080] Two pull rods 706, two L-shaped force transmission rods 704 and threaded rings 503 are connected together to form two crank rocker mechanisms. Through the two crank rocker mechanisms, the up and down sliding threaded rings 503 can drive the two L-shaped force transmission rods 704 to swing up and down, and the threaded propulsion shaft 502 can rotate forward and reverse to drive the threaded rings 503 to slide up and down and can position the threaded rings 503 in real time, so as to fix the two L-shaped force transmission rods 704 in a horizontal supporting state and a swinging steering use state.

[0081] Preferably, when the pressing wheel 3051 rolls and abuts against the top end of the retaining ring 6, the pressing wheel 3051 presses and abuts against a circle of semicircular force rings 601 in sequence when rolling along the retaining ring 6;

[0082] The top of the reducer is fixedly installed with a limit frame 507 (such as Figures 9 to 10 As shown in FIG. 5 , the limiting frame 507 is composed of a limiting ring 5071 and two vertical support rods 5072 symmetrically welded to the bottom of the limiting ring 5071. A track ring groove 7031 is provided on the outer periphery of the rotating ring 703, and the track ring groove 7031 is rotatably matched with the limiting ring 5071.

[0083] A locking bolt 5073 is screwed through the peripheral wall of the limiting ring 5071 .

[0084] Preferably, the bottom side portion of the threaded propulsion shaft 502 is a hexagonal structure (eg Figures 10 to 11As shown), a hexagonal slot 7012 is formed through the shaft sleeve 701, and the hexagonal slot 7012 is inserted and matched with the hexagonal rod section of the threaded propulsion shaft 502, and the aperture of the hexagonal slot 7012 is larger than the rod diameter of the hexagonal rod section of the threaded propulsion shaft 502;

[0085] The portion of the hexagonal rod section of the threaded propulsion shaft 502 below the shaft sleeve 701 is slidably sleeved with a hexagonal transmission rod sleeve 505 and a sliding sleeve 504 (such as Fig.11 As shown in FIG. 5 , a tightening bolt 5041 is screwed through the peripheral wall of the sliding sleeve 504, and the head end of the tightening bolt 5041 is pressed against the hexagonal rod section of the threaded propulsion shaft 502;

[0086] When the transmission rod sleeve 505 slides upward, it is plugged into the hexagonal slot 7012, and a limit ring 5051 is welded at the bottom of the transmission rod sleeve 505. A tension spring 506 that is plugged into the hexagonal rod section of the threaded propulsion shaft 502 is connected between the limit ring 5051 and the sliding sleeve 504. When the limit ring 5051 slides upward with the transmission rod sleeve 505, it abuts against the shaft sleeve 701.

[0087] When the transmission rod sleeve 505 is plugged into the hexagonal slot 7012 , the threaded propulsion shaft 502 can be transmission-connected with the rotating component 7 . In this state, the driving device 5 can rotationally drive the rotating component 7 through the driving shaft 501 and the threaded propulsion shaft 502 .

[0088] Preferably, the two L-shaped force transmission rods 704 are used to transmit the rotational driving force of the rotating assembly 7 to the two L-shaped slide plates 305 when they are swung to a horizontal state, and the two L-shaped force transmission rods 704 are used to pull the annular cover plate 302 upwards to extract a circle of water cutting racks 603 from the annular sand guide groove 306 for disassembly and replacement;

[0089] When the two L-shaped force transmission rods 704 are swung and placed in a horizontal state, the rotating assembly 7 can drive the two L-shaped slide plates 305 to slide around the track ring 304 through the two L-shaped force transmission rods 704. When the two L-shaped slide plates 305 slide around the track ring 304, they drive the two top pressure wheels 3051 to roll along the top surface of the retaining ring 6 and press against a circle of semicircular force rings 601 in turn. When the two top pressure wheels 3051 press against a circle of semicircular force rings 601 in turn, they can push and drive the retaining ring 6, a circle of vertical installation shafts 602 and a circle of water cutting racks 603 downward. When the two top-pressing wheels 3051 are separated from the two semicircular force-bearing rings 601 at the corresponding positions, the spring on the vertical mounting shaft 602 pushes back to drive the retaining ring 6 and the circle of water-cutting racks 603 to automatically slide up and reset, and then the two top-pressing wheels 3051 and the circle of semicircular force-bearing rings 601 are used together with the rebound push effect of the spring, and the rotating assembly 7 and the two L-shaped force transmission rods 704 can rotate to drive the retaining ring 6 and the circle of water-cutting racks 603 to slide up and down to cut and intercept the impact water flow thrown out of the circle of vertical sand-throwing troughs 107;

[0090] When the water cutting frame 603 is driven up and down, the transmission rod sleeve 505 needs to be plugged into the hexagonal slot 7012 to make the threaded propulsion shaft 502 and the rotating assembly 7 drive connected, so that the rotating assembly 7 can be driven to rotate by the driving device 5 that drives the stirring roller frame 8, so that the retaining ring 6 and the water cutting frame 603 can be driven by the driving force of the driving device 5, so that the need for additional up and down sliding driving devices for the water cutting frame 603 can be eliminated, which helps to reduce the overall cost and energy consumption of the sand settling device;

[0091] When the two L-shaped force transmission rods 704 are swung upward, the track ring 304, the annular cover plate 302, the retaining ring 6 and the one-circle vertical installation shaft 602 can be pulled upward by the two pull rods 706 and the two L-shaped slide plates 305, and the one-circle water cutting frame 603 can be extracted from the annular sand guide groove 306 for disassembly and replacement. The two L-shaped force transmission rods 704 can be used as power transmission components between the rotating component 7 and the two L-shaped slide plates 305, and can also be used as components for extracting the one-circle water cutting frame 603 upward, which has the effect of using one device for two purposes. The use effect of using one device for two purposes can save the need to configure an extraction component for the one-circle water cutting frame 603, which helps to simplify the structure of the sand settling device and further reduce the overall cost of the sand settling device.

[0092] It is worth noting that: when extracting a circle of water cutting rack 603, it is necessary to first rotate and push the locking bolt 5073 so that the head end of the locking bolt 5073 is pressed against the peripheral wall of the track ring groove 7031, and it is also necessary to first loosen the annular cover plate 302 and slide the transmission rod sleeve 505 and the hexagonal slot 7012 away; when driving the circle of water cutting rack 603 up and down, it is necessary to loosen and separate the locking bolt 5073 from the track ring 304;

[0093] When the transmission rod sleeve 505 slides down and is withdrawn from the hexagonal slot 7012, the transmission connection between the rotating assembly 7 and the threaded propulsion shaft 502 can be disconnected. At this time, the driving device 5 rotates and drives the threaded propulsion shaft 502 alone. The threaded propulsion shaft 502 can rotate and propel the threaded ring 503 to slide up and down under the independent drive of the driving device 5, and the two L-shaped force transmission rods 704 are driven to swing up and down to respectively extract, disassemble and replace the old circle of water cutting frame 603 worn out after use and insert and reset the replaced new circle of water cutting frame 603. In this way, the upward swing extraction action and the downward swing reset installation action of the two L-shaped force transmission rods 704 can be driven by the driving device 5 for rotation, which can save the need to configure an additional extraction and insertion installation drive unit for the circle of water cutting frame 603, which is helpful to further reduce the cost and energy consumption of the sand settling device;

[0094] The sliding sleeve 504 can drive the transmission rod sleeve 505 to slide up and down and engage with the hexagonal slot 7012 through the tension spring 506. The tightening bolt 5041 can fix the sliding sleeve 504 in an upward or downward sliding state, and indirectly position the transmission rod sleeve 505 in a state of plugging and matching with the hexagonal slot 7012 or being pulled out. When the transmission rod sleeve 505 is plugged and matched with the hexagonal slot 7012, the transmission rod sleeve 505 may be twisted and misaligned with the hexagonal slot 7012 due to the continuous rotation of the transmission rod sleeve 505 following the threaded propulsion shaft 502. In this case, the transmission rod sleeve 505 is upwardly pulled out of position. The sliding sleeve 504 can temporarily push the transmission rod sleeve 505 against the bottom end of the hexagonal slot 7012 through the tension spring 506. As the transmission rod sleeve 505 and the threaded propulsion shaft 502 continue to rotate, when the transmission rod sleeve 505 and the hexagonal slot 7012 are aligned, the tension spring 506 can directly insert the top of the transmission rod sleeve 505 into the hexagonal slot 7012 to automatically complete the alignment of the transmission rod sleeve 505 and the hexagonal slot 7012. This can save the trouble of manually twisting the transmission rod sleeve 505 and the hexagonal slot 7012 for alignment, and is easy to operate.

[0095] When a circle of water cutting frame 603 is extracted by swinging on two L-shaped force transmission rods 704, the gravity of a circle of water cutting frame 603, a circle of vertical installation shaft 602, retaining ring 6, a circle of semicircular force ring 601 and annular cover plate 302 will transfer the load to the threaded ring 503 through the two L-shaped force transmission rods 704. When the multiple gravity is large, it will generate a large torsional resistance between the threaded ring 503 and the threaded propulsion shaft 502 when it is loaded on the threaded ring 503. Under the action of the torsional resistance, the threaded propulsion shaft 502 may drive the two L-shaped force transmission rods 704 and the rotating group 502, which are disconnected from the transmission connection and are in a freely rotatable state. Component 7 rotates synchronously. If the two L-shaped force transmission rods 704 and the rotating component 7 rotate synchronously with the threaded ring 503, the threaded ring 503 will also be rotated. The threaded ring 503 being rotated synchronously with the threaded propulsion shaft 502 will cause the rotation propulsion function of the threaded propulsion shaft 502 to fail, resulting in the two L-shaped force transmission rods 704 being unable to normally implement the extraction function of a circle of water cutting rack 603. In this case, the locking bolt 5073 can lock and fix the swivel ring 703 and the limit ring 5071 together, limiting the threaded ring 503 from rotating synchronously with the threaded propulsion shaft 502, thereby avoiding the occurrence of the above problems.

[0096] Preferably, the circumferential side wall of the circular water tank 1 is welded with an outlet pipe 102 and an inlet pipe 101 at intervals in the upper and lower directions, and the outlet pipe 102 and the inlet pipe 101 are arranged to be inclined toward each other and are both penetrated and welded with the annular sand trap 3;

[0097] The bottom of the circular water tank 1 and the annular sand trap 3 are respectively welded with a conical guide cover 104 and a conical sand guide cover 301, the conical sand guide cover 301 is sleeved in the peripheral space of the conical guide cover 104, and a conical sand guide ring groove 307 is formed between the two;

[0098] A circle of vertical hanging shafts 105 is welded to the bottom opening of the conical guide cover 104, and a sand settling box 2 is welded to the bottom of the circle of vertical hanging shafts 105. The sand settling box 2 is a top opening and bottom blocking structure, and a sand discharge pipe 201 with a valve is welded at the bottom center of the sand settling box 2;

[0099] The bottom opening of the conical sand guide cover 301 is welded and fixed to the top opening of the sand settling box 2, and a circle of sand inlet troughs 106 are formed between a circle of vertical hanging shafts 105;

[0100] A support seat 4 is welded downwardly on the outer periphery of the conical sand guide cover 301 .

[0101] Working principle: In the water conservancy project, water containing sand and gravel is pumped into the circular water tank 1 through the water inlet pipe 101. After entering the circular water tank 1, the water is rotated and stirred by the stirring roller 8 in the circular water tank 1 to form a high-speed rotating vortex. Under the centrifugal action of the vortex, the sand and gravel in the water are thrown to the circumferential side wall of the circular water tank 1, and thrown out to the annular sand guide groove 306 through a circle of vertical sand throwing troughs 107. The sand and gravel thrown out of the annular sand guide groove 306 are successively settled and guided downward along the annular sand guide groove 306 and the conical sand guide ring groove 307 and discharged through a circle of sand inlet troughs 106 and dropped into the sand settling box 2. The clean water in the circular water tank 1 after sand throwing and filtration is overflowed and discharged through the outlet pipe 102. When the sand settling box 2 is full of sand and gravel, the valve on the sand discharge pipe 201 is opened to discharge the sand and gravel regularly.

[0102] In this article, there are a few points to note:

[0103] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0104] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0105] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A cyclone sedimentation device for water conservancy projects, comprising: A circular water tank (1) and a stirring roller (8), wherein the circular water tank (1) is provided with a stirring roller (8) for rotation inside, and the stirring roller (8) is used for rotating and stirring the water containing sand and gravel inside the circular water tank (1) and causing the water to form a high-speed rotating vortex; The invention is characterized in that an annular sand retaining cover (3) is installed in the peripheral space of the circular water tank (1), an annular sand guide groove (306) is formed between the annular sand retaining cover (3) and the circular water tank (1), a circle of vertical sand throwing grooves (107) are penetrated through the circumferential side wall of the circular water tank (1), and the annular sand guide groove (306) is equipped with a water flow cutting mechanism that slides up and down; under the centrifugal action of the swirling flow, sand and a part of the water in the water body are thrown toward the circumferential side wall of the circular water tank (1), and thrown into the annular sand guide groove (306) through a circle of vertical sand throwing grooves (107), and the water flow cutting mechanism is used to intercept and cut the impact water flow thrown out from the circle of vertical sand throwing grooves (107); The top opening of the circular water tank (1) is sealed with a cover plate (103), and a driving device (5) for rotating and driving the stirring roller (8) is fixedly installed at the center position of the top of the cover plate (103). A rotating driving mechanism is arranged above the driving device (5) for driving the water flow cutting mechanism to slide up and down by using the driving force of the driving device (5).

2. A cyclone sedimentation device for water conservancy projects according to claim 1, characterized in that: The water jet cutting mechanism comprises: a retaining ring (6), a semicircular stress ring (601), a vertical installation shaft (602), and a water cutting frame (603); a circle of vertical installation shafts (602) is welded on the bottom side of the retaining ring (6); the vertical installation shafts (602) are arranged in groups of two, and the water cutting frame (603) is slidably mounted between two vertical installation shafts (602) on each group of vertical installation shafts (602); and a circle of semicircular stress ring (601) is welded on the top of the retaining ring (6); The water cutting frame (603) is composed of a row of arc-shaped water cutting rods (6031) arranged at equal intervals in the upper and lower parts and a row of vertical support connecting shafts (6032) welded between the middle sections of the row of arc-shaped water cutting rods (6031). Both ends of the row of arc-shaped water cutting rods (6031) are provided with a U-shaped slide groove, which is slidably matched with the vertical installation shaft (602). The two ends of the bottommost arc-shaped water cutting rod (6031) are fixed to the bottom end parts of the two vertical installation shafts (602) by bolts.

3. A cyclone sedimentation device for water conservancy projects according to claim 2, characterized in that: A circle of the vertical installation shafts (602) and a circle of water cutting frames (603) are distributed in the annular sand guide groove (306), and a circle of arc-shaped water cutting rods (6031) and a circle of vertical sand throwing grooves (107) are opposite to each other inside and outside, and an empty gap is formed between the two.

4. A cyclone sedimentation device for water conservancy projects according to claim 2, characterized in that: An annular opening is formed between the top end of the circumferential side wall of the circular water tank (1) and the top end of the annular sand retaining cover (3), the annular opening is sealed with an annular cover plate (302), the top end of a circle of vertical mounting shafts (602) penetrates and slides with the annular cover plate (302), and the retaining ring (6) is located above the annular cover plate (302); Three groups of vertical mounting shafts (602) arranged at intervals of 120 degrees from the line connecting the center of the cover plate (103) are all provided with springs, and the spring compression clamp is placed between the retaining ring (6) and the annular cover plate (302); Two limit blocks (6021) are symmetrically welded to the top portion of the vertical installation shaft (602), and when the vertical installation shaft (602) slides upward, the two limit blocks (6021) abut against the bottom side of the cover plate (103).

5. A cyclone sedimentation device for water conservancy projects according to claim 4, characterized in that: The rotary drive mechanism comprises: a rotating assembly (7) and an L-shaped force transmission rod (704); the rotating assembly (7) is composed of a shaft sleeve (701), two mounting blocks (7011) symmetrically welded to the top end of the outer periphery of the shaft sleeve (701), and a rotating ring (703) welded to the bottom of the two mounting blocks (7011); two L-shaped force transmission rods (704) are symmetrically rotatably connected to one end of the two mounting blocks (7011) away from the shaft sleeve (701).

6. A cyclone sedimentation device for water conservancy projects according to claim 5, characterized in that: The rotary drive mechanism further comprises: an L-shaped slide plate (305), a threaded propulsion shaft (502), a threaded ring (503), a connecting rod (705) and a pull rod (706); A circle of vertical support shafts (303) are welded to the top of the annular cover plate (302), and a track ring (304) is welded to the top of the circle of vertical support shafts (303). Two L-shaped slide plates (305) are symmetrically slidably mounted on the track ring (304), and two connecting rods (705) are symmetrically rotatably connected between the bent parts of the two L-shaped slide plates (305) and the head ends of the two L-shaped force transmission rods (704); The inner circumference of the track ring (304) is provided with an annular track groove (3041) with a T-shaped cross section; one end of the L-shaped slide plate (305) facing the track ring (304) is T-shaped and slidably cooperates with the annular track groove (3041); and a vertically arranged top pressing wheel (3051) is rotatably mounted on the bottom end of the L-shaped slide plate (305); The driving device (5) is composed of a motor and a reducer. A vertically arranged driving shaft (501) is rotatably installed through the center of the reducer. The top end of the driving shaft (501) is connected to a vertically supported threaded propulsion shaft (502) through a coupling. A threaded ring (503) is screwed onto the threaded section of the threaded propulsion shaft (502). Two pull rods (706) are symmetrically rotatably connected between the threaded ring (503) and the parts of the two L-shaped force transmission rods (704) close to the shaft sleeve (701). The bottom end of the driving shaft (501) is fitted through the cover plate (103) and is connected to the top end of the rotating shaft of the stirring roller frame (8) through a coupling.

7. A cyclone sedimentation device for water conservancy projects according to claim 6, characterized in that: When the pressing wheel (3051) rolls and abuts against the top end of the retaining ring (6), the pressing wheel (3051) rolls along the retaining ring (6) and sequentially presses and abuts against a circle of semicircular force-bearing rings (601); A limiting frame (507) is fixedly installed at the top of the reducer, and the limiting frame (507) is composed of a limiting ring (5071) and two vertical support rods (5072) symmetrically welded to the bottom of the limiting ring (5071). A track ring groove (7031) is opened on the outer periphery of the rotating ring (703), and the track ring groove (7031) is rotatably matched with the limiting ring (5071); A locking bolt (5073) is screwed and installed through the peripheral wall of the limiting ring (5071).

8. A cyclone sedimentation device for water conservancy projects according to claim 6, characterized in that: The bottom side portion of the threaded propulsion shaft (502) is a hexagonal structure, and a hexagonal slot (7012) is provided through the shaft sleeve (701), the hexagonal slot (7012) is inserted and matched with the hexagonal rod section of the threaded propulsion shaft (502), and the hole diameter of the hexagonal slot (7012) is larger than the rod diameter of the hexagonal rod section of the threaded propulsion shaft (502); The portion of the hexagonal rod section of the threaded propulsion shaft (502) below the shaft sleeve (701) is slidably sleeved with a hexagonal transmission rod sleeve (505) and a sliding sleeve (504) in an upper and lower interval manner, and a tightening bolt (5041) is screwed and installed through the peripheral wall of the sliding sleeve (504), and the head end of the tightening bolt (5041) is in pressing contact with the hexagonal rod section of the threaded propulsion shaft (502); When the transmission rod sleeve (505) slides upward, it is plugged into the hexagonal slot (7012), and a limit ring (5051) is welded to the bottom of the transmission rod sleeve (505). A tension spring (506) that is plugged into the hexagonal rod section of the threaded propulsion shaft (502) is connected between the limit ring (5051) and the sliding sleeve (504). When the limit ring (5051) slides upward with the transmission rod sleeve (505), it comes into contact with the shaft sleeve (701).

9. A cyclone sedimentation device for water conservancy projects according to claim 7, characterized in that: When the two L-shaped force transmission rods (704) are swung to a horizontal state, they are used to transmit the rotational driving force of the rotating assembly (7) to the two L-shaped slide plates (305); when the two L-shaped force transmission rods (704) are swung upward, they are used to pull the annular cover plate (302) upward, so as to extract a circle of water cutting racks (603) from the annular sand guide groove (306) for disassembly and replacement; When a circle of the water cutting rack (603) is extracted, the head end of the locking bolt (5073) is pressed against the peripheral wall of the track ring groove (7031).

10. A cyclone sedimentation device for water conservancy projects according to claim 1, characterized in that: A water outlet pipe (102) and a water inlet pipe (101) are welded to the circumferential side wall of the circular water tank (1) at intervals in the upper and lower directions. The water outlet pipe (102) and the water inlet pipe (101) are arranged to be inclined toward each other and are both welded to the annular sand trap (3). The bottoms of the circular water tank (1) and the annular sand trap (3) are respectively welded with a conical guide cover (104) and a conical sand guide cover (301), the conical sand guide cover (301) is sleeved in the peripheral space of the conical guide cover (104), and a conical sand guide annular groove (307) is formed between the two. A circle of vertical hanging shafts (105) is welded to the bottom opening of the conical guide cover (104), and a sand settling box (2) is welded to the bottom of the circle of vertical hanging shafts (105). The sand settling box (2) is a top opening and bottom blocking structure, and a sand discharge pipe (201) with a valve is welded at the bottom center of the sand settling box (2); The bottom opening of the conical sand guide cover (301) is welded and fixed to the top opening of the sand settling box (2), and a circle of sand inlet grooves (106) are formed between a circle of vertical hanging shafts (105).

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