CN112695708A

CN112695708A - Rotational flow sand settling device for hydraulic engineering

Info

Publication number: CN112695708A
Application number: CN202110109198.7A
Authority: CN
Inventors: 周靖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-04-23

Abstract

The invention discloses a rotational flow sand settling device for hydraulic engineering, which comprises a sand settling tank, a track, a drying tank and a mounting plate, wherein a separation block is fixedly arranged on the inner side surface of the sand settling tank, an impeller is welded outside a rotating ring, the track is fixedly arranged on the outer side surface of the sand settling tank, an air lift pump is fixed at the upper end of the sand settling tank, the side surface of the drying tank is mutually connected with the sand settling tank through an overflow pipe, a transmission gear is fixedly arranged in the middle of the outer side surface of the rotating ring, the side surface of the sand settling tank is connected with a limiting cylinder in a penetrating manner, the mounting plate is welded on the inner side of the sand settling tank, an internal thread block is arranged outside a screw rod, and a filter screen plate is arranged. This whirl desilting device for hydraulic engineering adopts neotype structural design for this device can carry out abrasive treatment to the grit that gets into in the desilting pond, avoids massive grit to block up transmission pipeline structure, and is provided with the dry processing structure of grit among the device, improves the effect of husky water separation.

Description

Rotational flow sand settling device for hydraulic engineering

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a rotational flow sand settling device for hydraulic engineering.

Background

Hydraulic engineering is the engineering that control rivers were discharged, and rivers can be mixed with some sand and dust material owing to environmental impact inside at the in-process that discharges, and some need higher project to quality of water to this part of quality of water to arrange the sand and handle, generally adopt the heavy husky device of whirl to carry out water-sand separation processing among the hydraulic engineering, and the sand grain of separation can be retrieved simultaneously and recycled, as construction's auxiliary material, reduces the extravagant phenomenon of environmental material.

With the continuous processing and use of the rotational flow sand settling device, the following problems are found in the use process:

1. application number is CN 201922002794.6's a surface water whirl sand removal device, adopts traditional husky water cyclone separation effect to carry out upper and lower layering to husky water, is not convenient for carry out abrasive treatment to the husky piece that mixes in the rivers at the in-process that uses, piles up the husky piece of adhesion and blocks up pipeline structure easily at the in-process of transmission, influences equipment normal use.

2. And some current whirl sediment devices are not convenient for carry out drying process to the grains of sand of separation at the in-process that uses, and the higher later stage reprocessing that needs of the water content in the grains of sand is handled, and the effect of sand-water separation is relatively poor.

Therefore, a rotational flow sand settling device for hydraulic engineering is needed to be designed aiming at the problems.

Disclosure of Invention

The invention aims to provide a rotational flow sand settling device for water conservancy projects, and aims to solve the problems that the existing rotational flow sand settling devices are inconvenient to grind sand blocks mixed in water flow in the using process, the accumulated and adhered sand blocks easily block a pipeline structure in the conveying process and influence the normal use of equipment, the existing rotational flow sand settling devices are inconvenient to dry separated sand grains in the using process, the water content in the sand grains is high, the later-stage reprocessing is needed, and the sand-water separation effect is poor.

In order to achieve the purpose, the invention provides the following technical scheme: a rotational flow sand settling device for hydraulic engineering comprises a sand settling tank, a track, a drying tank and a mounting plate, wherein a separation block is fixedly mounted on the inner side surface of the sand settling tank, a sand suction pipe is connected to the inner part of the sand settling tank in a penetrating manner, a rotating ring is rotatably connected to the outer part of the sand suction pipe, an impeller is welded to the outer part of the rotating ring, the rotating ring is connected with a grinding disc through a fixing rod, the track is fixedly mounted on the outer side surface of the sand settling tank, an air lift pump is fixed to the upper end of the sand settling tank, the upper end of the air lift pump is connected with the drying tank through a sand guide pipe, a drainer is mounted to the outer side of the sand guide pipe, the side surface of the drying tank is connected with the sand settling tank through an overflow pipe, a transmission shaft is rotatably mounted to the inner side of the drying tank, a fixing frame is welded to the inner part of the drying tank, a transmission gear is, and the internally connected with slide bar of spacing section of thick bamboo, the mounting panel welding is in the inboard of desilting pond, and the lower extreme of mounting panel rotates and installs drive gear to drive gear's lower extreme rotates and is connected with the lead screw, the externally mounted of lead screw has the internal thread piece, and internal thread piece and slide bar interconnect, the internally mounted of drainer has the filter screen board.

Preferably, the swivel is meshed with the driving gear through a transmission gear, the swivel is in an integrated structure with the grinding disc through a fixing rod, and the outer side face of the grinding disc is attached to the inner side face of the separation block.

Preferably, an external slider is installed on the side surface of the track, a positioning plate and a convex block are fixedly installed on the side surface of the external slider, a side rotating shaft is connected to the side surface of the positioning plate, and meanwhile, the convex block is connected with the sliding rod through a supporting rod.

Preferably, the drainer is obliquely arranged outside the sand guide pipe, and the drainer and the overflow pipe form a mutual communication structure through the filter screen plate.

Preferably, the rotary drum is rotatably mounted on the inner side of the fixing frame, the side sliding groove is formed in the side face of the rotary drum, the round rod is welded on the inner side of the fixing frame, and the side sliding block is mounted on the outer portion of the round rod.

Preferably, the slide bar and the limiting cylinder form a telescopic structure, the slide bar is fixedly connected with the internal thread block, and the internal thread block is in threaded connection with the screw rod.

Preferably, the sliding structure is formed by the external sliding block and the track, the external sliding block is connected with the side rotating shaft in a sliding mode through the positioning plate, the external sliding block is connected with one end of the supporting rod in a rotating mode through the convex block, and meanwhile the rotating structure is formed by the other end of the supporting rod and the sliding rod.

Preferably, the side slider and the round bar form a sliding structure, the side slider is connected with the rotary drum in a sliding mode through a side sliding groove, the stand column is welded at the lower end of the side slider, and meanwhile the lower end of the stand column is connected with the push plate through an adjusting rod.

Preferably, the push pedal forms extending structure through adjusting the pole with the stand, and the push pedal forms sliding structure with the mount to the protection casing is installed to the outside bilateral symmetry of stand, and the internally mounted of protection casing has the heating pipe simultaneously, and the mutual intercommunication structure is constituteed with the stand to the protection casing.

Compared with the prior art, the invention has the beneficial effects that: the rotational flow sand settling device for the hydraulic engineering adopts a novel structural design, so that the device can grind sand substances in the guiding device, the smoothness of the sand in the later transmission process is kept, and a sand drying structure is arranged in the device, so that the sand-water separation processing effect is improved;

1. the sand grain conveying device comprises a grinding disc, a fixed rod, a rotating ring, a driving gear and a transmission gear, wherein the grinding disc, the fixed rod and the rotating ring are fixedly connected with each other, and the driving gear and the transmission gear are connected in a meshed manner;

2. the inner thread block is in threaded connection with the sliding rod arranged in the telescopic structure, the driving speed of the sand-settling rotary structure is adjusted according to the size, distribution ratio and the like of the sand grain blocky structure, the driving motor is operated to control the screw rod to rotate, the inner thread block is moved and adjusted outside the screw rod under the control action of the threaded transmission structure, and the corresponding position of the sliding rod at the lower end of the driving gear is controlled, so that the rotating speed of the driving rotating shaft can be controlled;

3. the side slider that sliding construction set up, and the regulation pole that extending structure set up, operation motor control rotary drum rotates, make the horizontal reciprocating motion of side slider under the effect of slide adjusting structure, the side slider drives the stand reciprocating motion of lower extreme at the in-process of horizontal regulation, stand horizontal migration is the regulation pole and adjusts at its lower extreme flexible regulation, control push pedal side direction removes, the sand grain that the push pedal promotes attached bottom the drying tank removes, stand and push pedal are in the sand grain of the in-process that removes with the heat transfer that the heating pipe produced to the drying tank inside, make the moisture evaporation come-up of mixing in the sand grain, the gas of evaporation passes through the overflow pipe liquefaction backward flow to the desilting basin in, the sand grain after the drying is convenient for outwards transmit, improve the device sand and water separation's effect.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a front view of the impeller of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic top view of the grinding disc of the present invention;

FIG. 5 is a front cross-sectional structural view of the drainer of the present invention;

FIG. 6 is a front view of the support rod of the present invention;

FIG. 7 is a schematic side view of the positioning plate of the present invention;

FIG. 8 is a front view of the fixing frame of the present invention;

fig. 9 is a schematic sectional top view of the pillar of the present invention.

In the figure: 1. a desilting pool; 2. a separation block; 3. a sand suction pipe; 4. rotating the ring; 5. an impeller; 6. fixing the rod; 7. a grinding disc; 8. a track; 9. a gas stripping pump; 10. a sand guide pipe; 11. a water drainer; 12. a drying tank; 13. an overflow pipe; 14. a transmission shaft; 15. a fixed mount; 16. a transmission gear; 17. a limiting cylinder; 18. a slide bar; 19. mounting a plate; 20. a drive gear; 21. a screw rod; 22. an internal thread block; 23. a filter screen plate; 24. an outer slider; 25. positioning a plate; 26. a bump; 27. a side rotating shaft; 28. a support bar; 29. a rotating drum; 30. a side chute; 31. a round bar; 32. a side slider; 33. a column; 34. adjusting a rod; 35. pushing the plate; 36. a protective cover; 37. heating the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a rotational flow sand settling device for hydraulic engineering comprises a sand settling tank 1, a separation block 2, a sand suction pipe 3, a rotary ring 4, an impeller 5, a fixed rod 6, a grinding disc 7, a track 8, an air stripping pump 9, a sand guide pipe 10, a drainer 11, a drying tank 12, an overflow pipe 13, a transmission shaft 14, a fixed frame 15, a transmission gear 16, a limit cylinder 17, a slide rod 18, a mounting plate 19, a driving gear 20, a screw rod 21, an internal thread block 22, a filter screen plate 23, an external slide block 24, a positioning plate 25, a convex block 26, a side rotary shaft 27, a support rod 28, a rotary cylinder 29, a side sliding groove 30, a round rod 31, a side slide block 32, a vertical column 33, an adjusting rod 34, a push plate 35, a protective cover 36 and a heating pipe 37, wherein the separation block 2 is fixedly mounted on the inner side surface of the sand settling tank 1, the sand suction pipe 3 penetrates through the sand suction pipe 3, the rotary ring 4 is rotatably, the rotary ring 4 is connected with the grinding disc 7 through a fixed rod 6, the track 8 is fixedly arranged on the outer side surface of the sand settling tank 1, the upper end of the sand settling tank 1 is fixedly provided with an air lift pump 9, the upper end of the air lift pump 9 is connected with a drying tank 12 through a sand guide pipe 10, the outer side of the sand guide pipe 10 is provided with a drainer 11, the side surface of the drying tank 12 is connected with the sand settling tank 1 through an overflow pipe 13, the inner side of the drying tank 12 is rotatably provided with a transmission shaft 14, the inside of the drying tank 12 is welded with a fixed frame 15, the middle position of the outer side surface of the rotary ring 4 is fixedly provided with a transmission gear 16, the side surface of the sand settling tank 1 is connected with a limit cylinder 17 in a penetrating way, the inside of the limit cylinder 17 is connected with a slide rod 18, the mounting plate 19 is welded on the inner side of the sand settling tank 1, an internal thread block 22 is installed on the outer portion of the screw rod 21, the internal thread block 22 is connected with the slide rod 18, and a filter screen plate 23 is installed inside the drainer 11.

In the embodiment, the rotating ring 4 is meshed with the driving gear 20 through the transmission gear 16, the rotating ring 4 and the grinding disc 7 are integrated through the fixing rod 6, the outer side surface of the grinding disc 7 is attached to the inner side surface of the separation block 2, the rotating ring 4 is controlled to rotate outside the sand suction pipe 3 through the transmission structure, the rotating ring 4 drives the grinding disc 7 at the upper end to rotate through the fixing rod 6, sand grains led into the upper end of the sand settling tank 1 are ground on the inner sides of the grinding disc 7 and the separation block 2, so that part of the sand blocks with block structures are ground and processed into small granular structures, the sand grains are prevented from being blocked during later-period conveying in a pipeline structure, and the smoothness of sand grain conveying is improved;

an external slider 24 is arranged on the side surface of the track 8, a positioning plate 25 and a lug 26 are fixedly arranged on the side surface of the external slider 24, the side surface of the positioning plate 25 is connected with a side rotating shaft 27, meanwhile, the lug 26 is mutually connected with the sliding rod 18 through a supporting rod 28, and the power driving structure is formed by operating the part of the transmission structure, so that the rotation of the driving gear 20 is conveniently controlled;

the drainer 11 is obliquely arranged outside the sand guide pipe 10, the drainer 11 and the overflow pipe 13 form a mutual communication structure through the filter screen plate 23, the deposited sand grain structure in the sand basin 1 enters the drying tank 12 through the sand guide pipe 10 and the drainer 11 for reprocessing, when the wet sand grains pass through the drainer 11, the filter screen plate 23 fixed in the drainer 11 is used for sand-water separation, partial moisture in the sand grains is separated, and the drying processing treatment is convenient for the later period;

the inner side of the fixed frame 15 is rotatably provided with a rotary drum 29, the side surface of the rotary drum 29 is provided with a side sliding chute 30, the inner side of the fixed frame 15 is welded with a round rod 31, meanwhile, the outer part of the round rod 31 is provided with a side sliding block 32, and the side sliding block 32 forms a side sliding block 32 control moving structure, so that the side sliding block 32 can be controlled to move transversely and reciprocally, and the function of dispersing sand grains is realized;

the slide rod 18 and the limiting cylinder 17 form a telescopic structure, the slide rod 18 is fixedly connected with the internal thread block 22, the internal thread block 22 is in threaded connection with the screw rod 21, the micro motor is operated to control the screw rod 21 to rotate, the internal thread block 22 is transversely adjusted and moved outside the screw rod 21 under the control of the threaded transmission structure, the internal thread block 22 drives the slide rod 18 with the lower end rotating correspondingly, and the driving speed of the driving gear 20 is controlled;

the external slider 24 and the track 8 form a sliding structure, the external slider 24 is connected with the side rotating shaft 27 in a sliding mode through the positioning plate 25, the external slider 24 is connected with one end of the supporting rod 28 in a rotating mode through the bump 26, meanwhile, the other end of the supporting rod 28 and the slide rod 18 form a rotating structure, the operating motor controls the side rotating shaft 27 to rotate, the side rotating shaft 27 is adjusted in the positioning plate 25 in a sliding mode, the positioning plate 25 and the external slider 24 are controlled to move up and down on the outer side face of the track 8, the external slider 24 pushes the two ends of the supporting rod 28 to rotate, and therefore the slide;

the side sliding block 32 and the round rod 31 form a sliding structure, the side sliding block 32 is connected with the rotary drum 29 in a sliding mode through the side sliding groove 30, the upright column 33 is welded at the lower end of the side sliding block 32, meanwhile, the lower end of the upright column 33 is connected with the push plate 35 through the adjusting rod 34, the rotary drum 29 is controlled to rotate by the motor, the side sliding block 32 transversely and reciprocally moves outside the round rod 31 under the limiting effect of the side sliding groove 30, the side sliding block 32 drives the upright column 33, the adjusting rod 34 and the protective cover 36 to move and adjust inside the drying tank 12, sand grains in the drying tank 12 can be dispersed and processed, the sand grains in the drying tank 12 can be uniformly dried, moisture mixed in the sand grains is evaporated and floats upwards, and hot air is liquefied and flows back to the interior of the sand settling tank 1 through the overflow pipe 13;

push pedal 35 constitutes extending structure through adjusting pole 34 and stand 33, and push pedal 35 constitutes sliding construction with mount 15, and the protection casing 36 is installed to the outside bilateral symmetry of stand 33, the internally mounted of protection casing 36 has heating pipe 37 simultaneously, protection casing 36 constitutes mutual intercommunication structure with stand 33, operation heating pipe 37 produces high temperature heat fast, partly heat is direct to carry out drying process through protection casing 36 to outside grains of sand, another part heat gets into stand 33 through intercommunication structure, in adjusting pole 34 and push pedal 35, enlarge the scope of the device dry grains of sand, improve drying effect.

The working principle is as follows: when the device is used, firstly, according to the structure shown in figures 1-4 and figures 6-7, water flow containing sand grains is guided into the sand basin 1, an external motor is operated to control the side rotating shaft 27 to rotate, the side rotating shaft 27 moves up and down in the positioning plate 25, the positioning plate 25 slides up and down on the outer part of the track 8, the positioning plate 25 controls the two ends of the supporting rod 28 to rotate through the lug 26, the lower end of the supporting rod 28 pushes the sliding rod 18 to move telescopically in the limiting cylinder 17, the sliding rod 18 pushes the driving gear 20 to rotate on the left side in the telescopic movement process (the sliding rod 18 is composed of two rotating rod structures, the front and the rear rod structures are mutually and rotatably connected, one end rod structure is telescopically arranged in the limiting cylinder 17, the other end rod structure is rotatably arranged at the lower end of the internal thread block 22, when one end of the sliding rod 18 pushes the other end to rotate and, the driving gear 20 at the upper end is controlled to rotate and adjust through the internal thread block 22 and the screw rod 21 to realize the driving effect on the driving gear 20), the driving gear 20 is meshed with the transmission gear 16, the transmission gear 16 and the rotary ring 4 rotate under the control effect of a meshed transmission structure, the rotary ring 4 rotates outside the sand suction pipe 3, the rotary ring 4 drives the grinding disc 7 to rotate inside the separation block 2 through the fixed rod 6, the grinding disc 7 grinds large block-shaped sand blocks when rotating inside the separation block 2, the phenomenon that the large block-shaped sand blocks are blocked in a transmission structure in the later sand grain re-transmission process is avoided, the smoothness of equipment transmission is kept, the ground sand grains enter the middle position of the inner side of the sand sedimentation tank 1, the rotary ring 4 drives the impeller 5 fixed outside to rotate, and the impeller 5 assists the sand grains to rapidly swirl and deposit at the bottom of the sand sedimentation tank 1, the primary sand-water separation is realized, meanwhile, the rotational flow rotation and grinding speed is controlled according to the size and proportion of the mixed sand block in the water flow, the micro driving motor is operated to control the screw rod 21 to rotate, the internal thread block 22 is enabled to move transversely under the control of the thread transmission structure, the internal thread block 22 drives the sliding rod 18 with the fixed lower end to move transversely in the moving process, the corresponding position of the sliding rod 18 at the lower end of the driving gear 20 is adjusted, the rotation speed of the driving gear 20 is controlled in the moving process of the sliding rod 18, and the use and adjustment flexibility of the device is improved;

then, according to the structure shown in fig. 1, 5 and 8-9, the deposited sand is accumulated at the bottom of the sand basin 1, the air lift pump 9 is operated to convey the deposited sand structure to the inside of the drying tank 12 through the sand suction pipe 3 and the sand guide pipe 10, when the sand passes through the inside of the drainer 11, the moisture mixed in the sand is discharged downwards through the filter screen plate 23, the water flows into the overflow pipe 13 and finally flows back to the inside of the sand basin 1, the discharged sand enters the inside of the drying tank 12, the motor is operated to control the rotation of the rotary drum 29, the rotary drum 29 drives the side slide blocks 32 to transversely reciprocate through the side slide grooves 30 (the side slide grooves 30 are arranged at the outer side of the rotary drum 29 in a continuous trapezoidal closed loop structure, when the rotary drum 29 rotates, the position where the side slide grooves 30 and the side slide blocks 32 are engaged and slide changes, and the side slide blocks 32 transversely reciprocate at the corresponding position of the lower end of the rotary drum 29 along with the rotation change of the side slide grooves 30), the side sliding block 32 drives the upright column 33 fixed at the lower end to move in the process of transverse sliding, the adjusting rod 34 at the lower end of the upright column 33 automatically stretches and retracts for adjustment, the adjusting rod 34 drives the push plate 35 to obliquely slide at the lower end of the fixing frame 15, the push plate 35 pushes the sand grain structure accumulated at the bottom of the drying tank 12 to keep the dispersibility of the accumulated sand grains, the sand grains are conveniently conveyed outwards, the transmission shaft 14 is controlled to rotate by operating the motor, the transmission shaft 14 obliquely rotates to convey the sand grains outwards to realize sand-water separation, the heating pipe 37 is operated at the same time, heat generated in the heating pipe 37 is conveyed outwards through the protective cover 36, meanwhile, part of heat generated by the heating pipe 37 is distributed into the upright column 33, the adjusting rod 34 and the push plate 35, when the part of structure transversely moves in the drying tank 12, the sand grains in the drying tank 12 are dried, moisture in the sand grains are evaporated and floated, hot gas enters the overflow pipe 13 to be, form comparatively complete drying system, dry structure improves the effect of device husky water reposition of redundant personnel, increases the device's practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sediment device is sunk to whirl for hydraulic engineering, includes desilting pond (1), track (8), drying can (12) and mounting panel (19), its characterized in that: the sand settling tank is characterized in that a separation block (2) is fixedly mounted on the inner side surface of the sand settling tank (1), a sand suction pipe (3) is connected to the inner portion of the sand settling tank (1) in a penetrating mode, a rotating ring (4) is rotatably connected to the outer portion of the sand suction pipe (3), an impeller (5) is welded to the outer portion of the rotating ring (4), the rotating ring (4) is connected with a grinding disc (7) through a fixing rod (6), a track (8) is fixedly mounted on the outer side surface of the sand settling tank (1), an air lift pump (9) is fixed to the upper end of the sand settling tank (1), the upper end of the air lift pump (9) is connected with a drying tank (12) through a sand guide pipe (10), a water drainer (11) is mounted on the outer side of the sand guide pipe (10), the side surface of the drying tank (12) is connected with the sand settling tank (1) through an overflow pipe (13), and a transmission shaft (14), and the inside welding of drying cylinder (12) has mount (15), the lateral surface intermediate position fixed mounting of change (4) has drive gear (16), the side through connection of grit chamber (1) has spacing section of thick bamboo (17), and the internal connection of spacing section of thick bamboo (17) has slide bar (18), mounting panel (19) welding is in the inboard of grit chamber (1), and the lower extreme of mounting panel (19) rotates and installs drive gear (20) to the lower extreme of drive gear (20) rotates and is connected with lead screw (21), the externally mounted of lead screw (21) has interior thread piece (22), and interior thread piece (22) and slide bar (18) interconnect, the internally mounted of drainer (11) has filter plate (23).

2. The rotational flow sand settling device for the water conservancy project according to claim 1, wherein: the rotating ring (4) is meshed with the driving gear (20) through the transmission gear (16), the rotating ring (4) and the grinding disc (7) are of an integrated structure through the fixing rod (6), and the outer side face of the grinding disc (7) is attached to the inner side face of the separating block (2).

3. The rotational flow sand settling device for the water conservancy project according to claim 1, wherein: an external sliding block (24) is installed on the side face of the track (8), a positioning plate (25) and a convex block (26) are fixedly installed on the side face of the external sliding block (24), a side rotating shaft (27) is connected to the side face of the positioning plate (25), and meanwhile the convex block (26) is connected with the sliding rod (18) through a supporting rod (28).

4. The rotational flow sand settling device for the water conservancy project according to claim 1, wherein: the drainer (11) is obliquely arranged outside the sand guide pipe (10), and the drainer (11) and the overflow pipe (13) form a mutual communication structure through the filter screen plate (23).

5. The rotational flow sand settling device for the water conservancy project according to claim 1, wherein: the rotary drum (29) is rotatably mounted on the inner side of the fixing frame (15), a side sliding groove (30) is formed in the side face of the rotary drum (29), a round rod (31) is welded on the inner side of the fixing frame (15), and a side sliding block (32) is mounted on the outer side of the round rod (31).

6. The rotational flow sand settling device for the water conservancy project according to claim 1, wherein: the sliding rod (18) and the limiting cylinder (17) form a telescopic structure, the sliding rod (18) is fixedly connected with the inner thread block (22), and the inner thread block (22) is in threaded connection with the screw rod (21).

7. The rotational flow sand settling device for the water conservancy project according to claim 3, wherein: the external sliding block (24) and the track (8) form a sliding structure, the external sliding block (24) is connected with the side rotating shaft (27) in a sliding mode through the positioning plate (25), the external sliding block (24) is connected with one end of the supporting rod (28) in a rotating mode through the bump (26), and meanwhile the other end of the supporting rod (28) and the sliding rod (18) form a rotating structure.

8. The rotational flow sand settling device for the water conservancy project according to claim 5, wherein: side slider (32) and round bar (31) constitute sliding construction, and side slider (32) pass through side spout (30) and rotary drum (29) sliding connection to the lower extreme welding of side slider (32) has stand (33), and the lower extreme of stand (33) is through adjusting pole (34) and push pedal (35) interconnect simultaneously.

9. The rotational flow sand settling device for the water conservancy project according to claim 8, wherein: push pedal (35) are through adjusting pole (34) and constitute extending structure with stand (33), and push pedal (35) constitute sliding construction with mount (15) to protection casing (36) are installed to the outside bilateral symmetry of stand (33), and the internally mounted of protection casing (36) has heating pipe (37) simultaneously, and mutual intercommunication structure is constituteed with stand (33) in protection casing (36).