River silt collection device

Abstract

The present invention relates to the technical field of river channel management, and discloses a river channel silt collection device, comprising a support base on which a pump body is mounted, an agitator wheel being rotatably provided on the support base through a driving mechanism, the agitator wheel comprising a plurality of agitator plates equidistantly arranged in the circumference, the agitator plates being provided with filter holes penetrating their free end faces, the silt passing through the filter holes during the rotation of the agitator wheel to filter out solids in the silt, the suction port of the pump body being sealedly connected to a sludge suction pipe, the mouth of the sludge suction pipe being located in the rotation area of ​​the filter holes; and a scraper member being provided on the support base and arranged opposite to the agitator wheel. The present invention can utilize the cooperation between the agitator wheel and the scraper member to greatly reduce the solids contained in the sludge entering the pump body through the sludge suction pipe, and can greatly reduce the wear of the inner wall of the pump body and the rotor, thereby increasing the service life of the pump body.

Description

Technical Field

[0001] The present invention relates to the technical field of river channel regulation, and in particular to a river channel silt collection device. Background Art

[0002] Long-term neglect of river cleaning can easily lead to silt accumulation, which not only affects the normal flow of water but also easily causes water pollution. Therefore, silt cleaning is essential in river management. Silt sludge is a potential high-quality "secondary resource" with high water content, high calorific value, and rich organic matter and nutrients. Therefore, the sludge cleared can be collected and reused.

[0003] For example, the Chinese invention patent with application number CN201811043115.3, publication (announcement) number CN109056876B, and name “River Silt Collection Device” discloses “recovery coagulation tank, coagulation recovery agitator, protector, base, sludge absorption pump, coagulant feed pipe, water inlet pipe, recovery pipe with valve, folding pipe, sludge feed recovery pipe, regulator and sludge suction pipe”. When working, the folding pipe is placed above the sludge area, the driving motor and the sludge absorption pump are connected to electricity, and the driving motor drives the left pulley, the connecting sleeve and the multiple stirring wings to rotate. The connecting sleeve and multiple stirring wings play a mixing and stirring role in the recovery coagulation tank. The left pulley drives the stirring wheel to rotate through the belt. The rotating stirring wheel breaks up the sludge under the folding pipe, reduces the surface tension of the sludge, and makes the sludge absorption pump's extraction more convenient and rapid. The sludge flows into the recovery coagulation tank through the folding pipe, the sludge suction pipe, the sludge absorption pump and the sludge feed recovery pipe. The coagulant feed pipe and the water inlet pipe enter the coagulant and water respectively, so that the drier sludge is diluted and decomposed. After being stirred by the connecting sleeve and multiple stirring wings, it is recycled through the recovery pipe with a valve.

[0004] The river silt collection device provided by the above-mentioned invention patent stirs the silt that has not been sucked into the silt absorption pump through a rotating stirring wheel to make the silt looser and reduce the surface tension of the silt, thereby avoiding the phenomenon that the silt cannot be recovered due to weak silt absorption force. However, its disadvantage is that since solid matter, such as gravel, mortar, etc., is easily mixed into the silt, the solid matter will be sucked into the pump body along with the silt. If there are more solid matter entering the pump body, the wear of the inner wall of the pump body and the pump body drill will be greatly increased, thereby reducing the service life of the pump body. Therefore, how to reduce the content of solid matter in the silt before the silt is sucked into the pump body is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to provide a river silt collection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a river silt collection device, comprising a support base on which a pump body is installed, and a stirring wheel is arranged on the support base through a driving mechanism to rotate.

[0007] The stirring wheel includes a plurality of stirring plates arranged equidistantly in the circumference, each of which is provided with a filtering hole extending through its free end surface. During the rotation of the stirring wheel, sludge passes through the filtering hole to filter out solid matter in the sludge. The suction port of the pump body is sealedly connected to a sludge suction pipe, and the pipe opening of the sludge suction pipe is located in the rotation area of ​​the filtering hole.

[0008] It also includes a scraping member arranged on the support seat and opposite to the stirring wheel. During the rotation of the stirring wheel, the downstream sides of multiple stirring plates are driven to slide and abut against the scraping member in turn to scrape the filtered solids from the free end of the stirring plate to the outside of the rotating area of ​​the filter hole.

[0009] The above-mentioned river channel silt collection device, the stirring wheel also includes a turntable and a connecting column, one end of the connecting column is coaxially fixedly connected to the turntable, and the other end is coaxially fixedly connected to the output end of the driving mechanism, and multiple stirring plates are arranged equidistantly around the circumference and fixedly installed on the outer circumferential surface of the turntable.

[0010] The above-mentioned river channel silt collection device, the scraper includes a rotating wheel, on which a plurality of scraping columns arranged equidistantly in the circumference are fixedly provided, and a support column coaxially arranged with the rotating wheel is fixedly installed on the support seat, and the rotating wheel is rotatably sleeved on the support column.

[0011] In the above-mentioned river channel silt collection device, the downstream side surfaces of the multiple stirring plates are driven to slide and abut against the outer peripheral surfaces of the multiple scrapers in sequence in the process of rotation of the stirring wheel. During the abutment between the stirring plates and the scrapers, the stirring plates push the scrapers to slide away from the stirring plates to scrape out the solids filtered out on the stirring plates to the inner side of the scraper rotation area.

[0012] In the above-mentioned river channel silt collection device, scrapers are fixedly installed on the outer sides of the multiple scraper columns, and the thickness of the scraper is smaller than the radius of the scraper column. During the contact between the stirring plate and the scraper column, the stirring plate pushes the multiple scraper columns and the multiple scrapers to rotate around the rotating support column so that the scraper can fill the silt in its rotating area into the rotating area of ​​the filter hole.

[0013] The above-mentioned river channel silt collection device has multiple groups of connecting plates fixedly installed on the rotating wheel, which are fixedly connected to multiple scraping columns one by one. Each group of connecting plates includes two connecting plates arranged at intervals. The interval between the two connecting plates corresponds to the stirring plate and can allow the stirring plate to be inserted.

[0014] In the above-mentioned river channel silt collecting device, a through hole is provided on the stirring plate, and the through hole is located on the side of the filter hole close to the center of the stirring wheel.

[0015] In the above-mentioned river channel silt collection device, the number of the scraping columns is nine, and the number of the stirring plates is three.

[0016] The above-mentioned river channel silt collection device, the sludge suction pipe includes a hard pipe sealedly connected to the suction port of the pump body, the bottom of the hard pipe passes through the support seat and is sealedly connected to a hard bent pipe, the hard bent pipe is staggered with multiple stirring plates, and the pipe mouth of the hard bent pipe extends into the rotating area of ​​the filter hole.

[0017] The above-mentioned river channel silt collection device, the sludge suction pipe includes a hard tube sealedly connected to the suction port of the pump body, the bottom of the hard tube passes through the support seat and is sealedly connected to a hose, and the pipe mouth of the hose is located in the rotating area of ​​the filter hole.

[0018] Beneficial effect: In the above technical scheme, the present invention provides a river silt collection device, which can filter the solid matter contained in the silt during the process of the stirring plate rotating and stirring the silt by opening a filter hole on the stirring plate, and the filtered solid matter is pushed by the rotating stirring plate toward the scraper that slides and abuts against its downstream side. When the downstream side of the stirring plate abuts against the scraper, it slides relative to the scraper, so that the scraper scrapes off the solid matter filtered out of the stirring plate, and the scraped solid matter enters the outside of the rotating area of ​​the filter hole. At this time, the solid matter contained in the silt in the rotating area of ​​the filter hole is greatly reduced. Since the sludge suction pipe mouth is located in the rotating area of ​​the filter hole, the solid matter contained in the sludge entering the pump body through the sludge suction pipe is greatly reduced, which can greatly reduce the wear of the pump body wall and the rotor, thereby improving the service life of the pump body and effectively solving the shortcomings of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the structure of a river silt collection device when installing a hard elbow pipe provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a river silt collection device when a hose is installed according to an embodiment of the present invention;

[0022] Figure 3A schematic diagram of the three-dimensional structure between the stirring wheel and the scraping member provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of a stirring plate provided in an embodiment of the present invention;

[0024] Figure 5 A schematic top view of the stirring wheel and the scraping member when the scraper provided by the embodiment of the present invention just contacts the downstream side of the stirring plate;

[0025] Figure 6 A schematic top view of the stirring wheel and the scraping member when the scraper provided in an embodiment of the present invention slides to the free end of the stirring plate.

[0026] Description of reference numerals:

[0027] 1. Support base; 101. Support column; 2. Stirring wheel; 201. Turntable; 202. Connecting column; 203. Stirring plate; 2031. Through hole; 2032. Filter hole; 3. Scraper; 301. Rotating wheel; 302. Connecting plate; 303. Scraping column; 304. Scraper; 4. Stirring tank; 5. Stirring motor; 6. Pump body; 7. Driving mechanism; 8. Hard pipe; 9. Hard bent pipe; 10. Hose. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-6 As shown, an embodiment of the present invention provides a river silt collection device, comprising a support base 1 on which a pump body 6 is mounted. A stirring wheel 2 is rotatably provided on the support base 1 via a driving mechanism 7. The stirring wheel 2 comprises a plurality of stirring plates 203 equidistantly arranged in the circumferential direction. The stirring plates 203 are provided with filtering holes 2032 extending through their free end surfaces. During the rotation of the stirring wheel 2, silt passes through the filtering holes 2032 to filter out solid matter in the silt. A sludge suction pipe is sealedly connected to the suction port of the pump body 6, and the sludge suction pipe orifice is located in the rotation area of ​​the filtering holes 2032.

[0030] It also includes a scraper 3 arranged on the support seat 1 and arranged opposite to the stirring wheel 2. During the rotation of the stirring wheel 2, the downstream sides of multiple stirring plates 203 are driven to slide and abut against the scraper 3 in turn to scrape the filtered solid matter to the outside of the rotating area of ​​the filter hole 2032.

[0031] The riverbed silt collection device provided in this embodiment is used for recycling silt. The words about direction and position provided in this embodiment are relative to the accompanying drawings. The "downstream" in this embodiment is relative to the rotation direction of the stirring wheel 2. Specifically, the pump body 6 is fixedly mounted on the support seat 1 for absorbing silt. A stirring tank 4 is mounted on the support seat 1. A stirring motor 5 is fixedly mounted on the top of the stirring tank 4. The output shaft of the stirring motor 5 passes through the stirring tank 4 and extends to the interior of the stirring tank 4. A rotating roller (not shown in the figure) is provided inside the stirring tank 4. The rotating roller is coaxially fixedly connected to the output shaft of the stirring motor 5 or connected with a coaxial key. A plurality of stirring fins (not shown in the figure) are fixedly mounted on the rotating roller. Starting the stirring motor 5 can drive the rotating roller and the plurality of stirring fins to rotate. The pump body 6 includes a suction port and a discharge port. The suction port of the pump body 6 is sealed and connected to a sludge suction pipe. The mouth of the mud pipe is located in the sludge, and the discharge port of the pump body 6 is connected to the inner cavity of the mixing tank 4 through a connecting pipe. The pump body 6 is started to generate negative pressure in the mud suction pipe. Under the action of the negative pressure, the sludge is sucked into the pump body 6 from the mouth of the mud suction pipe, and then transported to the mixing tank 4 through the pump body 6. The mixing tank 4 is provided with a coagulant feed pipe for injecting coagulant, a water inlet pipe for injecting water, and a recovery pipe with a valve for discharging the stirred sludge. The coagulant and water are injected into the mixing tank 4 to contact with the sludge, and are evenly mixed under the action of the rotation of multiple stirring fins. After the mixing is completed, the valve on the recovery pipe is opened to recover the mixed sludge. The driving mechanism 7 is a motor, which is fixedly mounted on the support seat 1. The stirring wheel 2 is fixedly connected or keyed to the output shaft of the driving mechanism 7. Starting the driving mechanism 7 can drive the stirring wheel 2 to rotate. The driving mechanism 7, the stirring motor 5 and the pump body 6 are all controlled by the controller (not shown in the figure) to start and stop. Of course, the setting of the driving mechanism 7 can also be cancelled, and the stirring motor 5 can be used to drive the stirring wheel 2 to rotate. This is the existing technology and will not be described in detail.The stirring wheel 2 is used to stir the sludge that has not been sucked into the pump body 6 to facilitate the suction of the pump body 6. The stirring wheel 2 includes a plurality of stirring plates 203 arranged axially and equidistantly. When the driving mechanism 7 is started, the plurality of stirring plates 203 are driven to rotate. During operation, the plurality of stirring plates 203 are located in the sludge. When the plurality of stirring plates 203 rotate, the sludge is stirred. A plurality of filtering holes 2032 are provided on the stirring plate 203. The filtering holes 2032 are rectangular. The plurality of filtering holes 2032 are arranged at intervals in the height direction. The sludge can pass through the filtering holes 2032, but the solid matter in the sludge cannot pass through the filtering holes 2032 due to its large volume. When multiple stirring plates 203 rotate, the purpose of filtering solid matter in the sludge can be achieved. The filtered solid matter will abut on the downstream side of the stirring plate 203 or be stuck in the downstream opening of the filter hole 2032. The filter hole 2032 passes through the end face of the free end of the stirring plate 203 (the free end refers to the end away from the center of the stirring wheel 2), so that when a force is applied toward the free end of the downstream side of the stirring plate 203, the solid matter abutting on the downstream side of the stirring plate 203 can slide out from the free end of the stirring plate 2032 along the filter hole 2032 without causing obstruction of the solid matter, so as to achieve the scraping of the solid matter. The mouth of the mud suction pipe sealedly connected to the suction port of the pump body 6 is located in the rotating area of ​​the filter hole 2032 (referring to the annular area formed when the filter hole 2032 rotates), and the mouth of the mud suction pipe is located in the sludge. The depth of the mud suction pipe mouth inserted into the sludge is less than the depth of the bottom of the stirring plate 203 inserted into the sludge, so that the sludge sucked into the pump body 6 is the sludge stirred by the stirring plate 203, specifically the sludge in the circular area formed by the rotation of the filter hole 2032. The scraper 3 is used to slide and abut against the downstream side surfaces of the rotating multiple stirring plates 203 in sequence, and as the stirring plates 203 rotate, the scraper 3 will abut against the downstream side surfaces of the stirring plates 203 and slide toward the free ends of the stirring plates 203, so that the solid matter abutting against the downstream side surfaces of the stirring plates 203 can be scraped out from the free ends of the stirring plates 203. Since the solid matter leaves the free ends of the stirring plates 203, the scraped solid matter will leave the annular area formed when the filter holes 2032 rotate, and enter outside the annular area formed when the filter holes 2032 rotate, that is, enter the outside of the rotating area of ​​the filter holes 2032, so that the solid matter contained in the sludge located in the rotating area of ​​the filter holes 2032 is greatly reduced, and the sludge suction pipe mouth is located in the rotating area of ​​the filter holes 2032, so that the solid matter contained in the sludge entering the sludge suction pipe and the pump body 6 is greatly reduced, which can reduce the wear of the inner wall of the pump body 6 and the rotor. In the existing technology, since solid objects such as gravel and mortar are easily mixed into the sludge, the solid objects will be sucked into the pump body along with the sludge. If a large amount of solid objects enter the pump body, the wear of the inner wall of the pump body and the pump body drill will be greatly increased, thereby reducing the service life of the pump body. Therefore, how to reduce the content of solid objects in the sludge before it is sucked into the pump body is a technical problem that needs to be solved urgently.

[0032] In this embodiment, by opening the filter hole 2032 on the stirring plate 203, the solid matter contained in the sludge can be filtered during the process of the stirring plate 203 rotating and stirring the sludge. The filtered solid matter is pushed by the rotating stirring plate 203 toward the scraper 3 that slides against its downstream side. When the downstream side of the stirring plate 203 abuts against the scraper 3, it slides relative to the scraper 3, so that the scraper 3 scrapes off the solid matter filtered on the stirring plate 203, and the scraped solid matter enters the outside of the rotating area of ​​the filter hole 2032. At this time, the solid matter contained in the sludge in the rotating area of ​​the filter hole 2032 is greatly reduced. Since the sludge suction pipe mouth is located in the rotating area of ​​the filter hole 2032, the solid matter contained in the sludge entering the pump body 6 through the sludge suction pipe is greatly reduced, which can greatly reduce the wear of the inner wall of the pump body 6 and the rotor, thereby improving the service life of the pump body and effectively solving the shortcomings of the prior art.

[0033] In this embodiment, the stirring wheel 2 further includes a rotating disk 201 and a connecting post 202. The connecting post 202 is vertically arranged, one end of the connecting post 202 is coaxially fixedly connected to the rotating disk 201, and the other end is coaxially fixedly connected to the output end of the driving mechanism 7. A plurality of stirring plates 203 are circumferentially equidistantly arranged and fixedly mounted on the outer circumference of the rotating disk 201. By starting the driving mechanism 7 to drive the connecting post 202 to rotate, the connecting post 202 drives the plurality of stirring plates 203 to rotate synchronously to achieve stirring of the sludge.

[0034] The scraper 303 is a vertically arranged cylinder, and a support column 101 coaxially arranged with the rotating wheel 301 is fixedly installed on the support seat 1. The rotating wheel 301 is rotatably sleeved on the support column 101, and the scraper 303 is used to abut against the downstream side of the rotating stirring plate 203. When the rotating stirring plate 203 abuts against the scraper 303, it can push the multiple scrapers 303 to rotate around the support seat 1. When the stirring plate 203 and the scraper 303 rotate at the same time, the stirring plate 203 abutting against each other slides relative to the scraper 303, and the scraper 303 gradually slides toward the end of the stirring plate 203 until the scraper 303 separates from the stirring plate 203, so that the scraper 303 can scrape the solid matter filtered out by the stirring plate 203 from the free end of the scraper 303.

[0035] Specifically, during the rotation of the stirring wheel 2, the downstream side surfaces of the multiple stirring plates 203 are driven to slide and abut against the outer peripheral surfaces of the multiple scrapers 303 in sequence. During the abutment between the stirring plates 203 and the scrapers 303, the stirring plates 203 push the scrapers 303 to slide away from the stirring plates 203 to scrape the solids filtered out of the stirring plates 203 to the inner side of the rotation area of ​​the scrapers 303, that is, the solids are scraped into the inner side of the ring formed when the scrapers 303 rotate, and at the same time are located on the outer side of the ring formed when the filter holes 2032 rotate. At this time, the stirring plates 203 are separated from the scrapers 303. , then the side surface of the upstream stirring plate 203 again slides against the outer surface of the upstream scraper 303, so that the solids filtered from the upstream stirring plate 203 are scraped out again to the outside of the ring formed by the rotation of the filter hole 2032, and this cycle is repeated, so that the solids contained in the sludge in the rotating area of ​​the filter hole 2032 are continuously removed. The sludge suction pipe orifice is located in the rotating area of ​​the filter hole 2032, and the sludge sucked in is the sludge in the rotating area of ​​the filter hole 2032. Therefore, the solids contained in the sludge entering the pump body 6 are greatly reduced, thereby protecting the pump body 6. Moreover, the solids scraped out by the scraper 303 each time are piled in the same position, so that the filtered solids can be collected in a centralized manner.

[0036] The scraper 304 is fixedly mounted on the outside of the plurality of scraper posts 303. The thickness of the scraper 304 is smaller than the radius of the scraper post 303, so that only the scraper post 303 is in contact with the stirring plate 203, and the scraper 304 is not in contact with the stirring plate 203. The function of the scraper 304 is to push the sludge in the rotating area of ​​the scraper 304. During the contact between the stirring plate 203 and the scraper post 303, the stirring plate 203 pushes the plurality of scraper posts 303 and the plurality of scraper posts 304 to rotate around the rotating support column 101 so that the scraper 304 fills the sludge in its rotating area into the rotating area of ​​the filter hole 2032, thereby preventing the sludge from being sucked in by the sludge suction pipe, resulting in a small amount of sludge in the rotating area of ​​the filter hole 2032, and making it impossible for the sludge suction pipe to suck in the sludge. Specifically, in the process of the mud suction pipe continuously sucking in silt, the amount of silt near the mud suction pipe will continue to decrease, that is, the amount of silt in the rotating area of ​​the filter hole 2032 will continue to decrease, causing a height difference between the silt in the rotating area of ​​the filter hole 2032 and the silt outside it, specifically, a height difference is caused between the silt around the mud suction pipe and the silt outside the rotating area of ​​the filter hole 2032. The silt outside the rotating area of ​​the filter hole 2032 can only flow toward the mud suction pipe under the action of gravity to fill the continuously decreasing silt, but the silt itself is sticky, so that the silt flows slowly only under the action of gravity, and thus cannot be filled in time, which can easily lead to the mud suction pipe being unable to suck in silt due to lack of silt. In this embodiment, the rotating agitator plate 203 cleverly drives the scraper 3 to rotate. This rotation of the scraper 3 drives the multiple scrapers 304 to rotate. During the rotation of the multiple scrapers 304, one scraper 304 can push the sludge outside the rotation area of ​​the filter holes 2032 directly into the vicinity of the sludge suction pipe, thereby quickly filling the sludge near the sludge suction pipe and effectively preventing the sludge suction pipe from being unable to absorb the sludge. Due to the height difference between the sludge around the sludge suction pipe and the sludge outside the rotation area of ​​the filter holes 2032, the filled sludge drops in height after entering the sludge suction pipe, preventing it from being pushed away again by the scraper 304. This repeated process continuously achieves the automatic filling of sludge as the agitator plate 203 drives the scraper 3 to rotate. As can be seen, the scraper 3 not only cleans the solids filtered by the agitator plate 203, but also unexpectedly fills the sludge near the sludge suction pipe.

[0037] In this embodiment, a plurality of groups of connecting plates 302 are fixedly mounted on the rotating wheel 301, and are fixedly connected to a plurality of scraping columns 303 in a one-to-one correspondence. Each group of connecting plates 302 includes two connecting plates 302 arranged at intervals. The interval between the two connecting plates 302 corresponds to the stirring plate 203 and can allow the stirring plate 203 to be inserted, so that when the stirring plate 203 pushes the scraping column 303, the free end of the stirring plate 203 can be inserted into the interval between the two connecting plates 302 to avoid the stirring plate 203, so that the scraping column 303 always abuts against the side of the stirring plate 203 before sliding to the free end of the stirring plate 203, so that the scraping column 303 can perform a stable and continuous scraping operation on the solid matter filtered out by the stirring plate 203.

[0038] Among them, a through hole 2031 is opened on the stirring plate 203, and the through hole 2031 is located on the side of the filter hole 2032 close to the center of the stirring wheel 2. When the scraper 303 abuts the side of the stirring plate 203, the scraper 303 is located between the through hole 2031 and the filter hole 2032, so that the scraper 303 cannot reach the rotation area of ​​the through hole 2031, and then the through hole 2031 does not need to filter the solid matter in the sludge. The opening of the through hole 2031 is larger than the opening of the filter hole 2032. During the rotation of the stirring plate 203, the sludge and solid matter in the sludge located in the rotation area of ​​the through hole 2031 will directly pass through the through hole 2031, thereby reducing the resistance of the sludge to the stirring plate 203, thereby reducing the torque exerted on the driving mechanism 7.

[0039] In this embodiment, the number of scrapers 303 is nine, the number of stirring plates 203 is three, and the relationship between the stirring wheel 2 and the scraper 3 during operation is as follows: Figures 5 to 6 As shown, when the number of scrapers 303 is nine and the number of stirring plates 203 is three, the scrapers 303 can be brought closer to the inner side of the stirring plate 203 when abutting against the downstream side of the stirring plate 203, thereby increasing the length of the filter hole 2032 to allow the stirring plate 203 to filter out more solids, and then enabling the scrapers 303 to scrape off more solids.

[0040] In this embodiment, the structure of the mud suction pipe is as follows: the mud suction pipe includes a rigid tube 8 that is sealedly connected to the suction port of the pump body 6. The bottom of the rigid tube 8 passes through the support base 1 and is sealedly connected to a rigid curved tube 9. The rigid curved tube 9 is staggered with the multiple stirring plates 203, and the tube mouth of the rigid curved tube 9 extends into the rotating area of ​​the filter hole 2032. Because the rigid curved tube 9 is staggered with the multiple stirring plates 203, the mud suction pipe does not contact the rotating stirring plates 203, thereby ensuring smooth rotation of the stirring plates 203 while the tube mouth of the mud suction pipe can be stably located in the rotating area of ​​the filter hole 2032.

[0041] The structure of the mud suction pipe can also be as follows: the mud suction pipe includes a hard pipe 8 that is sealedly connected to the suction port of the pump body 6, the bottom of the hard pipe 8 passes through the support base 1 and is sealedly connected to a hose 10, the hard pipe 8 is fixedly connected to the support base 1, and the nozzle of the hose 10 is located in the rotation area of ​​the filter hole 2032. The hose 10 is elastic, and the elasticity of the hose 10 enables it to deform. When the stirring plate 203 rotates, it can push the hose 10 to bend so that the stirring plate 203 passes over the hose 10. After that, the hose 10 automatically recovers its deformation under the action of its own elastic force to be inserted into the sludge, so that even if the hose 10 is not staggered with the multiple stirring plates 203, it will not affect the rotation of the stirring plates 203 and the position of the mud suction pipe nozzle (that is, in the rotation area of ​​the filter hole 2032).

[0042] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A river silt collection device, comprising a support base (1) on which a pump body (6) is mounted, wherein a stirring wheel (2) is rotatably provided on the support base (1) via a driving mechanism (7), and characterized in that: The stirring wheel (2) comprises a plurality of stirring plates (203) arranged equidistantly in the circumferential direction, and the stirring plates (203) are provided with filter holes (2032) penetrating the free end surfaces thereof. During the rotation of the stirring wheel (2), sludge passes through the filter holes (2032) to filter out solid matter in the sludge. The suction port of the pump body (6) is sealedly connected to a sludge suction pipe, and the pipe opening of the sludge suction pipe is located in the rotation area of ​​the filter holes (2032); It also includes a scraping member (3) disposed on the support seat (1) and arranged opposite to the stirring wheel (2), wherein the stirring wheel (2) drives the downstream side surfaces of the plurality of stirring plates (203) to slide against the scraping member (3) in sequence during rotation, so as to scrape the filtered solid matter from the free ends of the stirring plates (203) to the outside of the rotation area of ​​the filter hole (2032); The scraping member (3) comprises a rotating wheel (301), a plurality of scraping columns (303) arranged equidistantly in the circumferential direction are fixedly provided on the rotating wheel (301), a support column (101) coaxially arranged with the rotating wheel (301) is fixedly mounted on the support seat (1), and the rotating wheel (301) is rotatably sleeved on the support column (101); During the rotation of the stirring wheel (2), the downstream side surfaces of the plurality of stirring plates (203) are driven to alternately slide and abut against the outer peripheral surfaces of the plurality of scraping columns (303) in sequence. During the abutment between the stirring plates (203) and the scraping columns (303), the stirring plates (203) push the scraping columns (303) to slide away from the stirring plates (203) to scrape out the solid matter filtered from the stirring plates (203) to the inner side of the rotation area of ​​the scraping columns (303); A scraper (304) is fixedly mounted on the outer sides of the plurality of scraper columns (303), wherein the thickness of the scraper (304) is smaller than the radius of the scraper column (303). During the contact between the stirring plate (203) and the scraper column (303), the stirring plate (203) pushes the plurality of scraper columns (303) and the plurality of scraper columns (304) to rotate around the rotating support column (101), so that the scraper (304) fills the silt in its rotating area into the rotating area of ​​the filter hole (2032).

2. The river silt collection device according to claim 1, characterized in that: The stirring wheel (2) further comprises a rotating disk (201) and a connecting column (202), one end of the connecting column (202) being coaxially fixedly connected to the rotating disk (201), and the other end being coaxially fixedly connected to the output end of the driving mechanism (7), and a plurality of stirring plates (203) being equidistantly arranged in a circumferential direction and fixedly mounted on the outer peripheral surface of the rotating disk (201).

3. The river silt collection device according to claim 1, characterized in that: A plurality of groups of connecting plates (302) are fixedly mounted on the rotating wheel (301) and are fixedly connected to the plurality of scraping columns (303) in a one-to-one correspondence. Each group of connecting plates (302) includes two connecting plates (302) spaced apart. The space between the two connecting plates (302) corresponds to the stirring plate (203) and can accommodate the stirring plate (203) to be inserted.

4. The river silt collection device according to claim 1, characterized in that: A through hole (2031) is provided on the stirring plate (203), and the through hole (2031) is located on a side of the filter hole (2032) close to the center of the stirring wheel (2).

5. The river silt collection device according to claim 1, characterized in that: The number of the scraping columns (303) is nine, and the number of the stirring plates (203) is three.

6. The river silt collection device according to claim 1, characterized in that: The mud suction pipe comprises a hard pipe (8) sealedly connected to the suction port of the pump body (6); the bottom of the hard pipe (8) passes through the support seat (1) and is sealedly connected to a hard curved pipe (9); the hard curved pipe (9) is staggered with a plurality of stirring plates (203); and the pipe mouth of the hard curved pipe (9) extends to the rotation area of ​​the filter hole (2032).

7. The river silt collection device according to claim 1, characterized in that: The mud suction pipe comprises a hard pipe (8) sealedly connected to the suction port of the pump body (6); the bottom of the hard pipe (8) passes through the support seat (1) and is sealedly connected to a hose (10); the pipe mouth of the hose (10) is located in the rotation area of ​​the filter hole (2032).

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