River channel silt screw conveyor with screening function

Abstract

The present application discloses a kind of riverway silt screw conveyer with screening function, it is related to silt transfer technical field, including: conveyor body, auxiliary plate, square frame shell, the conveyor body, auxiliary plate, square frame shell are in same horizontal plane, still include: particle size judging component, screening collection adjustment component, the screening collection adjustment component is located in the middle part of particle size judging component;The design of the arc ring shape of the hole flow-converging plate can effectively improve the accuracy of particle size determination;The arc ring design of the hole flow-converging plate can detain the mixed body of silt and sand particles, which allows silt of different particle sizes to be collected in a relatively stable environment, avoiding the problem of inaccurate particle size determination caused by rapid flow of silt;Through the above-mentioned manner, the proportion information of sand particles of different particle sizes can be more accurately obtained, providing reliable data support for subsequent screening and processing work, and improving the accuracy of particle size determination.

Description

Technical Field

[0001] This invention relates to the field of sediment transfer technology, specifically to a river sediment screw conveyor with screening function. Background Technology

[0002] With the continuous development of society and economy and people's increasing emphasis on environmental protection, the importance of river dredging has become increasingly prominent. In current river dredging practices, screw conveyors are often used to transport mixtures of mud, water, and sand in rivers; however, existing screw conveyors have significant shortcomings in river dredging applications.

[0003] Firstly, existing screw conveyors, when used for river dredging, are limited to the conveying function and cannot effectively screen the mud-water-sand mixture during the conveying process. River mud and sand come in various forms and types, including muddy water, fine sand, medium-coarse sand, gravel, and pebbles. Different particle sizes of mud and sand have vastly different uses, and without efficient screening, it is difficult to achieve rational utilization of resources. For example, fine sand has broad application prospects in the construction industry and can be used as a high-quality building material; however, the unscreened mixture cannot be used directly in construction and must undergo a series of tedious screening operations. This undoubtedly greatly increases the number of steps in the work and consumes more time.

[0004] Furthermore, subsequent screening work requires a greater investment of manpower, resources, and equipment, further increasing the cost of river dredging. Simultaneously, there will be significant resource consumption; for example, additional space is needed to house the screening equipment and temporarily store the mud-water-sand mixture to be screened, and the rental or use of such space requires financial investment. In addition, a large amount of energy, such as electricity and fuel, is needed to operate the screening equipment. On the equipment side, specialized screening machines need to be purchased, and maintenance and upkeep are required during use, further increasing costs.

[0005] Therefore, this invention proposes a river sediment screw conveyor with screening function to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a river sediment screw conveyor with screening function to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a river sediment screw conveyor with screening function, comprising: a conveyor body, an auxiliary plate, and a square frame shell, wherein the conveyor body, the auxiliary plate, and the square frame shell are on the same horizontal plane, and further comprising: a particle size determination component and a screening and collection adjustment component, wherein the screening and collection adjustment component is located in the middle of the particle size determination component; the particle size determination component is used to determine the proportion of sand particles of different sizes in the water flow; the screening and collection adjustment component is used to adjust the collection method according to the proportion of different sand particles determined by the particle size determination component.

[0008] Preferably, the particle size determination component includes a perforated flow-gathering plate fixed to the inner wall of a square frame shell. A rotating shaft A is fixedly connected to the middle of the inner wall of the square frame shell, and a connecting rod is fixedly connected to the rotating shaft A. A first screening chamber is fixedly connected to one end of the perforated flow-gathering plate, and a second screening chamber is fixedly connected to the other end of the perforated flow-gathering plate. Screening holes are fixedly connected at equal intervals on the first screening chamber.

[0009] Preferably, a partition plate is fixedly connected inside the first screening chamber, a transfer port is opened through the side end face of the first screening chamber, a storage ring is rotatably connected to the end face of the first screening chamber via a column shaft, the first screening chamber and the storage ring fit well together, a counterweight is fixedly connected to the bottom of the storage ring, and a gravity sensor is fixedly connected to the inner arc surface of the storage ring.

[0010] Preferably, the screening and collection adjustment assembly includes a parts compartment fixedly connected to a square frame shell, a fluid guide vertically slidably connected to the parts compartment, and a baffle plate fixedly connected to the inner wall of the square frame shell.

[0011] Preferably, a collection chamber is provided on one side of the fluid guide, and collection holes are provided at equal intervals on the collection chamber. A transfer tube is fixedly connected to the bottom of the collection holes, and an electric telescopic rod is fixedly connected to the bottom of the collection chamber. A rotating wheel is rotatably connected to the bottom of the electric telescopic rod.

[0012] Preferably, a support frame is fixedly connected to the inner cavity of the parts compartment, a rotating shaft B is rotatably connected to the support frame, a circular piece is fixedly connected through the rotating shaft B, and the rotating shaft B is inserted into the off-axis center of the circular piece.

[0013] Preferably, the storage ring body is provided with a drainage hole.

[0014] Preferably, the collection chamber, collection hole, transfer tube, electric telescopic rod, rotating wheel, and support frame are a group, namely, the particle size collection group.

[0015] Compared with existing technologies, this invention provides a river sediment screw conveyor with screening function, which has the following advantages: 1. This invention, through the design of a particle size determination component, takes samples during the conveyor body's transport of the sediment mixture, and determines the proportion of sand particles of different sizes in the total sand particles during the sampling process. This has the following advantages: Firstly, it optimizes the subsequent processing flow; the particle size proportion information obtained from the sampling provides an important basis for subsequent screening and processing; the parameters and working mode of the screening equipment can be adjusted according to the proportion, making the screening process more efficient and accurate; for example, if the proportion of coarse sand is large, the equipment can be adjusted in time to increase the processing speed, which helps to plan subsequent processing steps in advance and reduce unnecessary operations and equipment investment.

[0016] Secondly, it improves the efficiency of river cleaning work; sampling and analysis can be carried out without stopping the conveyor itself, without affecting the overall progress of river cleaning; compared with the traditional method of conveying first and then analyzing separately, it saves a lot of time and improves work efficiency; it can provide real-time data support for river cleaning work, so that operators can adjust their work strategies in a timely manner according to changes in proportion, ensuring that the cleaning work is always carried out efficiently.

[0017] Thirdly, it improves resource utilization efficiency. By sampling and determining the proportion of sand particles of different sizes during transportation, the composition of river sediment can be understood more accurately. Based on the proportion information, targeted resource utilization planning can be carried out, and sand particles of different sizes can be applied to appropriate fields, which greatly improves resource utilization efficiency.

[0018] 2. The present invention, through the design of the screening and collection adjustment component, can effectively improve the accuracy and efficiency of screening; it can be adapted to sand particles of different sizes in mud and water, and can achieve precise screening of sand particles of different sizes. It can better adapt to the actual composition of mud and sand mixtures, and avoid the problem of incomplete or over-screening of some sand particles due to fixed screening settings, thereby improving the accuracy and efficiency of screening.

[0019] Furthermore, it enhances the adaptability and flexibility of the equipment. This design allows the conveyor body to adapt to different river channels or different stages of sediment mixtures. In different river environments, the particle size distribution of sediment varies greatly. This adaptability adjustment function ensures that the equipment can effectively perform screening work under various conditions, improving the adaptability and flexibility of the equipment. Whether in rivers with more medium and coarse sand or in rivers with more fine sand, the equipment can achieve better screening results through adaptability adjustment, reducing the possibility of needing to replace the equipment or carry out large-scale modifications due to changes in sediment characteristics.

[0020] 3. This invention, through the design of the perforated flow-collecting plate with an arc-shaped ring, can effectively improve the accuracy of particle size determination. Specifically, the arc-shaped ring design of the perforated flow-collecting plate can trap the mud-water-sand mixture, allowing mud and sand of different particle sizes to be collected in a relatively stable environment, avoiding the problem of inaccurate particle size determination caused by rapid mud and sand flow. Through the above method, the proportion of sand particles of different sizes can be obtained more accurately, providing reliable data support for subsequent screening and processing. For example, in practical applications, when the mixture flows rapidly, fine sand may be entrained by coarse sand, making it difficult to accurately determine its true proportion. The design of the perforated flow-collecting plate can effectively avoid this situation and improve the accuracy of particle size determination.

[0021] 4. This invention utilizes two adjacent collection chambers at different heights. The higher chamber acts as a barrier to obstruct the flow of the mud-water-sand mixture, thus hindering its flow. This obstruction and the resulting impact and backflow action facilitate better sand entry into the collection chamber's cavity through the collection holes. This improves sand collection efficiency. Compared to designs without this feature, the sand collection process is more orderly and efficient, reducing sand loss and increasing the collection rate. For example, in practical applications, without this obstruction and backflow design, sand might flow rapidly through the collection area with the mixture, leading to incomplete collection. This design, however, allows for the effective collection of more sand particles.

[0022] At the same time, the controllability of the collection process is enhanced. By setting up two adjacent collection chambers and using their height difference to control the flow of the mixture and the collection of sand particles, the entire collection process becomes more controllable. Operators can adjust the height difference of the collection chambers according to actual needs to adapt to mixtures with different mud and sand compositions and different working requirements. This controllability improves the equipment's adaptability to different working conditions and ensures that sand particles can be effectively collected under various circumstances. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the main body of the present invention.

[0024] Figure 2 The diagram shows the relevant structures of the conveyor body, auxiliary plate, square frame shell, and perforated flow-gathering plate of the present invention.

[0025] Figure 3 This is a structural diagram of the particle size determination component of the present invention during operation.

[0026] Figure 4 This is a side view of the main structure of the present invention.

[0027] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle.

[0028] Figure 6 This is a structural diagram of the first screening cavity, partition plate, and transfer port in this invention.

[0029] Figure 7 The diagram shows the relevant structure of the particle size determination component and the screening, collection and adjustment component of this invention.

[0030] Figure 8 For the purposes of this invention, relevant structural diagrams of the adjustment components were collected and screened.

[0031] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point B in the middle.

[0032] Figure 10 This is a cross-sectional view of the square frame shell and parts compartment of the present invention.

[0033] In the diagram: 1. Conveyor body; 2. Auxiliary plate; 3. Square frame shell.

[0034] 4. Particle size determination component; 401. Perforated flow-gathering plate; 402. Rotating shaft A; 403. Connecting rod; 404. First screening chamber; 405. Screening hole; 406. Separator plate; 407. Transfer port; 408. Storage ring; 409. Counterweight; 410. Gravity sensor.

[0035] 5. Screening and collection adjustment components; 501. Parts compartment; 502. Fluid guide; 503. Baffle plate; 504. Collection compartment body; 505. Collection hole; 506. Transfer hose; 507. Electric telescopic rod; 508. Rotating wheel; 510. Rotating shaft B; 511. Circular disc. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0038] Example: Please refer to Figures 1 to 7As shown: In order to solve the problems mentioned in the technical solution, this application provides a river sediment screw conveyor with screening function, including: conveyor body 1, auxiliary plate 2, square frame shell 3, the conveyor body 1, auxiliary plate 2, and square frame shell 3 are on the same horizontal plane, and also includes: particle size judgment component 4 and screening collection adjustment component 5, the screening collection adjustment component 5 is located in the middle of particle size judgment component 4.

[0039] The particle size determination component 4 is used to determine the proportion of sand particles of different sizes in the water flow. The particle size determination component 4 includes a perforated flow-gathering plate 401 fixed to the inner wall of a square frame shell 3. A rotating shaft A402 is fixedly connected to the middle of the inner wall of the square frame shell 3. A connecting rod 403 is fixedly connected to the rotating shaft A402. A first screening chamber 404 is fixedly connected to one end of the perforated flow-gathering plate 401, and a second screening chamber is fixedly connected to the other end of the perforated flow-gathering plate 401. The first screening chamber 404... The upper part is fixedly connected with screening holes 405 at equal intervals. A partition plate 406 is fixedly connected inside the first screening cavity 404. A transfer port 407 is opened through the side end face of the first screening cavity 404. A storage ring 408 is rotatably connected to the end face of the first screening cavity 404 through a column shaft. The first screening cavity 404 and the storage ring 408 fit well. A counterweight block 409 is fixedly connected to the bottom of the storage ring 408. A gravity sensor 410 is fixedly connected to the inner arc surface of the storage ring 408.

[0040] Among them, particle size determination component 4 is mainly used to determine the proportion of sand particles of different sizes in the water flow.

[0041] The perforated flow collector 401 features an arc-shaped design, primarily used to retain the mud-water-sand mixture conveyed from the conveyor body 1, facilitating the collection of particles of different sizes and aiding in determining the proportion of different particle sizes. One end of the perforated flow collector 401 is equipped with an electrically operated sealing plate, mainly used to seal the opening of the perforated flow collector 401 facing the conveyor body 1 during particle size determination.

[0042] Screening holes 405 are mainly used for sand particles smaller than their own size to enter and be transferred through separator plates 406.

[0043] The separator 406 is mainly used for transferring sand particles that enter the first screening chamber 404.

[0044] The transfer port 407 is mainly used to transfer sand particles in the first screening chamber 404 to the receiving ring 408.

[0045] The storage ring 408 has a drainage hole.

[0046] When the gravity sensor 410 performs gravity measurement, the connecting rod 403 needs to be adjusted to a horizontal position via the rotating shaft A402. This allows excess water, excluding sand particles, to be drained out through the drainage holes on the receiving ring 408. The screening hole 405, the separator plate 406, the transfer port 407, the receiving ring 408, the counterweight 409, and the gravity sensor 410 form a group, namely the particle size and weight feedback group.

[0047] The second screening chamber contains another set of particle size and weight feedback groups, the only difference being that the pore size of the screening holes 405 is different from that of the first set.

[0048] A further embodiment: Please refer to Figure 1 , Figure 2 , Figures 7 to 10 As shown: The screening and collection adjustment component 5 is used to adjust the collection method according to the proportion of different sand particles determined by the particle size judgment component 4. The screening and collection adjustment component 5 includes a parts compartment 501 fixedly connected in a square frame shell 3. A guide fluid 502 is vertically slidably connected to the parts compartment 501. A baffle plate 503 is fixedly connected to the inner wall of the square frame shell 3. A collection compartment 504 is provided on one side of the guide fluid 502. Collection holes 505 are equidistantly opened on the collection compartment 504. A transfer tube 506 is fixedly connected to the bottom of the collection hole 505. An electric telescopic rod 507 is fixedly connected to the bottom of the collection compartment 504. A rotating wheel 508 is rotatably connected to the bottom of the electric telescopic rod 507. A support frame is fixedly connected to the inner cavity of the parts compartment 501. A rotating shaft B510 is rotatably connected to the support frame. A circular piece 511 is fixedly connected through the rotating shaft B510. The rotating shaft B510 is inserted into the off-axis center of the circular piece 511.

[0049] Among them, the screening and collection adjustment component 5 is mainly used to adjust the collection method based on the proportion of different sand particles determined by the particle size judgment component 4.

[0050] The baffle 503 is mainly used to prevent the mud-water-sand mixture from being transferred away without being screened.

[0051] When two adjacent collection chambers 504 are at different heights, the relatively higher collection chamber 504 will act as a barrier to block the flow of the mud-water-sand mixture, thereby obstructing the flow of the mud-water-sand mixture and causing it to surge back after impact, so that the sand particles in the mud-water-sand mixture can enter the inner cavity of the collection chamber 504 through the collection hole 505.

[0052] The electric telescopic pole 507 is electrically connected to the main controller of the device and the gravity sensor 410.

[0053] The collection chamber 504, collection hole 505, transfer hose 506, electric telescopic rod 507, rotating wheel 508, and support frame form a group, namely the particle size collection group; multiple groups can be set according to specific conditions, the only difference being the diameter of the collection hole 505.

[0054] The disc 511 is mainly used in conjunction with the rotary wheel 508.

[0055] The working principle of all the contents in the above embodiments is as follows: It should be noted that the device is mainly used in application scenarios such as riverbanks where there are mostly sand particles of different sizes.

[0056] The following is the working process of particle size determination component 4: After the screw conveyor is set up on the riverbank with mud, water and sand particles, the conveyor body 1 can use the screw conveyor blades to transport the mud, water and sand particles that have entered the shell from low to high.

[0057] During the conveying process, the mud-water-sand mixture being conveyed is located in the lower part of the inner cavity of the conveyor body 1. The mud-water-sand mixture, conveyed by the spiral conveyor blades in the conveyor body 1, is further conveyed to the square frame shell 3. For further details, please refer to the attached document. Figure 2 and appendix Figure 3 As the mud-water-sand mixture enters, it moves along the inner arc surface of the perforated concentrator 401 under the obstruction of the perforated concentrator 401, thus constraining the mixture for a certain period of time. During this process, the rotating shaft A402, through the connecting rod 403, drives the first screening chamber 404 and the second screening chamber, which have different particle size holes at both ends, to rotate around the rotating shaft A402. During the confinement of the mud-water-sand mixture, sand particles of different sizes in the mixture will enter through the sieve holes 405 on the rotating first screening chamber 404. Specifically, taking the first screening chamber 404 as an example, when the first screening chamber 404 rotates around the rotating shaft A402, sand particles smaller than the size of the sieve hole 405 in the mud-water-sand mixture constrained by the perforated concentrator 401 will enter the first screening chamber 404. Further details can be found in the appendix. Figure 5 and appendix Figure 6When sand grains enter the first screening chamber 404, they are initially distributed on both sides of the partition plate 406. However, due to the arc-shaped guide, as the first screening chamber 404 rotates around the rotation axis A402, the sand grains on one side of the partition plate 406, i.e., the side not located at the transfer port 407, will eventually follow the arc surface into the side where the transfer port 407 is located, and ultimately enter the receiving ring 408 on one side of the first screening chamber 404 through the transfer port 407. It should be noted that, because a counterweight 409 is provided at the bottom of the receiving ring 408, the receiving ring 408 remains stationary during the rotation of the first screening chamber 404 around the rotation axis A402. In a state of constant change, after the device is started for a certain period of time, once the sand particles enter the collection ring 408, the particle size determination process can begin. When the gravity sensor 410 measures gravity, the connecting rod 403 needs to be adjusted to a horizontal position via the rotating shaft A402. This allows excess water, excluding sand particles, to be transferred out through the drainage holes on the collection ring 408 and into the first and second screening chambers. After the above steps are completed, the two gravity sensors 410 in the collection ring 408 and the second screening chamber will weigh the sand particles to determine the proportion of sand particles of different sizes in the river. This feedback will then be used to adjust the screening and collection adjustment component 5.

[0058] Furthermore, by designing the particle size determination component 4, sampling is performed during the conveyor body 1 when transporting the mud-sand mixture. The operation of determining the proportion of sand particles of different sizes in the total sand particles during sampling can optimize the subsequent processing flow. The particle size proportion information obtained from the sampling provides an important basis for subsequent screening and processing. The parameters and working mode of the screening equipment can be adjusted according to the proportion, making the screening process more efficient and accurate. For example, if the proportion of coarse sand is large, the equipment can be adjusted in time to increase the processing speed, which helps to plan subsequent processing steps in advance and reduce unnecessary operations and equipment investment.

[0059] It can improve the efficiency of river cleaning work; sampling and analysis can be carried out without stopping the conveyor body 1, without affecting the overall progress of river cleaning; compared with the traditional method of conveying first and then analyzing separately, it saves a lot of time and improves work efficiency; it can provide real-time data support for river cleaning work in a timely manner, so that operators can adjust their work strategies in a timely manner according to the changes in proportion, ensuring that the cleaning work is always carried out efficiently.

[0060] Improving resource utilization efficiency: By sampling and determining the proportion of sand particles of different sizes during transportation, the composition of river sediment can be understood more accurately. Based on the proportion information, targeted resource utilization planning can be carried out, and sand particles of different sizes can be applied to appropriate fields, which greatly improves resource utilization efficiency.

[0061] Furthermore, the perforated flow-collecting plate 401, with its arc-shaped design, effectively improves the accuracy of particle size determination. Specifically, the arc-shaped design of the perforated flow-collecting plate 401 can trap the mud-water-sand mixture, allowing different particle sizes to be collected in a relatively stable environment, avoiding inaccurate particle size determination caused by rapid mud-sand flow. Through this method, the proportion of sand particles of different sizes can be obtained more accurately, providing reliable data support for subsequent screening and processing. For example, in practical applications, when the mixture flows rapidly, fine sand may be entrained by coarse sand, making it difficult to accurately determine its true proportion. The design of the perforated flow-collecting plate 401 can effectively avoid this situation and improve the accuracy of particle size determination.

[0062] Please refer to the above work process. Figures 1 to 7 .

[0063] The following describes the working process of the screening and collection adjustment component 5: Furthermore, after the particle size determination component 4 determines the particle size distribution, the device's main controller adjusts the extension distance of the electric telescopic rod 507, thereby indirectly adjusting the height of the collection chamber 504. (See attached diagram.) Figure 10 and appendix Figure 8 Since the collection chamber 504, collection hole 505, transfer tube 506, electric telescopic rod 507, rotating wheel 508 and support frame are known to be a group, namely the particle size collection group; multiple groups can be set according to specific circumstances. The only difference is the diameter of the collection hole 505. Another group of collection chambers 504 adjacent to the collection chamber 504 and the guide fluid 502 are also controlled by a telescopic rod similar to the electric telescopic rod 507 to adjust the height.

[0064] Furthermore, once the initial heights of the adjacent guide fluid 502 and collection chamber 504 are adjusted, the device enters a stage where it can efficiently screen and collect sand particles of different sizes according to the proportion of the mud-water-sand mixture.

[0065] Furthermore, the eccentrically fixed disc 511 on the rotating shaft B510 pushes against the rotating wheel 508 as the shaft rotates, causing the adjusted-length electric telescopic rod 507 to move the collection chamber 504 upwards. Additionally, since the disc 511 is eccentrically fixed to the rotating shaft B510, as the disc 511 rotates, the rotating wheel 508, which is in contact with the disc 511, moves the collection chamber 504 on the electric telescopic rod 507 downwards. Similarly, the disc 511 eccentrically fixed to the rotating shaft B510 also moves the guide fluid 502 and the collection chamber 504 up and down via a telescopic rod similar to the electric telescopic rod 507. It is known that the eccentric positions of adjacent discs 511 are different; please refer to the appendix. Figure 9Therefore, the guide fluid 502 and the collection chamber 504 will be in a state of alternating up and down movement.

[0066] For further details, please refer to the appendix. Figure 7 When the mud-water-sand mixture moves toward the direction of the guide fluid 502 and the multiple collection chambers 504, the alternating up-and-down movement of the guide fluid 502 and the collection chambers 504 will obstruct the flow.

[0067] Furthermore, through the guidance of the flow guide 502 and the two adjacent collection chambers 504, when their heights are inconsistent, the relatively higher collection chamber 504 acts as a barrier to obstruct the flow of the mud-water-sand mixture. This obstruction of the flow and the resulting impact and backflow action help the sand particles enter the inner cavity of the collection chamber 504 more effectively through the collection hole 505 and be transferred by the transfer tube 506. This improves the sand collection efficiency. Compared to the absence of this design, the sand collection process is more orderly and efficient, reducing sand loss during collection and increasing the collection rate. For example, in practical applications, without this obstruction and impact backflow design, sand particles may flow rapidly through the collection area with the mixture, resulting in incomplete collection. The above design allows more sand particles to be effectively collected.

[0068] Meanwhile, the controllability of the collection process is enhanced; by setting up two adjacent collection chambers 504 and using their height difference to control the flow of the mixture and the collection of sand particles, the entire collection process becomes more controllable; operators can adjust the height difference of the collection chambers 504 according to actual needs to adapt to mixtures with different mud and sand compositions and different working requirements; this controllability improves the equipment's adaptability to different working conditions and ensures that sand particles can be effectively collected under various circumstances.

[0069] Furthermore, the design of the screening and collection adjustment component 5 can effectively improve the accuracy and efficiency of screening; it can be adapted to sand particles of different sizes in mud and water, and can achieve precise screening of sand particles of different sizes. It can better adapt to the actual composition of mud and sand mixtures and avoid the problem of incomplete or over-screening of some sand particles due to fixed screening settings, thereby improving the accuracy and efficiency of screening.

[0070] Furthermore, the design enhances the adaptability and flexibility of the equipment. This design enables the conveyor body 1 to adapt to different river channels or different stages of sediment mixtures. In different river environments, the particle size distribution of sediment varies greatly. This adaptability adjustment function ensures that the equipment can effectively perform screening work under various conditions, improving the adaptability and flexibility of the equipment. Whether in a river channel with more medium and coarse sand or in a river channel with more fine sand, the equipment can achieve better screening results through adaptability adjustment, reducing the possibility of needing to replace the equipment or carry out large-scale modifications due to changes in sediment characteristics.

[0071] Please refer to the above work process. Figure 1 , Figure 2 , Figures 7 to 10 .

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A river channel sediment screw conveyor with a screening function, comprising: The conveyor body, the auxiliary plate, the square frame shell are in the same horizontal plane, characterized by further comprising: a particle size judgment assembly, a screening and collecting adjustment assembly, the screening and collecting adjustment assembly is located in the middle of the particle size judgment assembly; the particle size judgment assembly is used for judging the proportion of different particle sizes of sand particles in the water flow; the screening and collecting adjustment assembly is used for adjusting the collection mode according to the proportion of different sand particles judged by the particle size judgment assembly; The particle size judgment assembly comprises a hole flow plate fixed in the inner wall of the square frame shell, a rotating shaft A is fixedly connected to the middle of the inner wall of the square frame shell, two connecting rods are fixedly connected to the rotating shaft A, a first screening cavity is fixedly connected to the connecting rod on one side, a second screening cavity is fixedly connected to the connecting rod on the other side, and screening holes are fixedly connected to the first screening cavity at equal intervals; another group of particle size weight feedback groups are arranged in the second screening cavity, and the only difference is that the hole diameters of the screening holes in the two groups are different; The first screening cavity is fixedly connected with a partition plate, a transfer opening is formed through the side end face of the first screening cavity, a receiving ring body is rotationally connected to the end face of the first screening cavity through a column shaft, the first screening cavity and the receiving ring body are well fitted, a counterweight is fixedly connected to the bottom of the receiving ring body, and a gravity sensor is fixedly connected to the inner arc surface of the receiving ring body; a water drain hole is formed in the receiving ring body; during rotation of the first screening cavity around the rotating shaft A as the rotation center, the receiving ring body is always in a constant state; after sand particles enter the receiving ring body within a certain unit time after the device is started, the particle size judgment work can be started; when the gravity sensor measures the gravity, the connecting rods need to be adjusted to be horizontal through the rotating shaft A, so that the excess water in the first screening cavity and the second screening cavity is transferred out through the water drain hole in the receiving ring body; after the above steps are completed, the two gravity sensors in the receiving ring body and the second screening cavity weigh the weight of the sand particles, so as to judge the proportion of sand particles with different particle sizes in the river, and the screening and collecting adjustment assembly is adjusted through feedback; The screening and collecting adjustment assembly comprises a part warehouse fixedly connected in the square frame shell, and a flow guide body is vertically and slidably connected to the part warehouse; and a shielding plate is fixedly connected to the inner cavity wall of the square frame shell; One side of the flow guide body is provided with a collection warehouse body, a plurality of collection holes are formed in the collection warehouse body at equal intervals, a transfer pipe belt is fixedly connected to the bottom of the collection hole, an electric telescopic rod is fixedly connected to the bottom of the collection warehouse body, and a rotating wheel is rotationally connected to the bottom of the electric telescopic rod; The inner cavity of the part warehouse is fixedly connected with a support frame, a rotating shaft B is rotationally connected to the support frame, a circular plate is fixedly connected to the rotating shaft B, and the rotating shaft B is inserted into the eccentric shaft of the circular plate; When the mixture of mud, water and sand particles moves towards the flow guide body and the collection warehouse body, the up-and-down alternating flow guide body and the collection warehouse body hinder the flow. By setting two adjacent collecting bins and using the height difference to control the flow of the mixture and the collection of sand particles.

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