Energy-saving water circulation type full-automatic vibration screening device and control system thereof

Abstract

The invention discloses an energy-saving water circulation type full-automatic vibration screening device and a control system thereof, and belongs to the technical field of mechanical screening, the energy-saving water circulation type full-automatic vibration screening device is characterized in that a cross-shaped vibration screen matched with a screening cylinder and a lifting box in rotary operation are arranged, and a multi-stage screening module integrating space overturning, double-group alternating and screened object lifting circulation is integrated; multiple traditional procedures are integrated into a single machine to be completed, that is, through the rotating action of the cross-shaped vibrating screen, the gravity transfer of screened objects and the external circulation of the screened objects, on one hand, three-level efficient separation and collection of the screened objects are completed under the action of single-layer rotating circulation and water washing and scouring, and on the other hand, three-level efficient separation and collection of the screened objects are achieved; on the other hand, the cross-shaped vibrating screen changes roles (bearing faces / screen faces) in the rotating process, the risk that screen holes are blocked is thoroughly eliminated through reverse washing scouring and overturning vibration dumping, in addition, closed-loop water saving is achieved through coupling with the water circulation technology, and the cross-shaped vibrating screen is particularly suitable for high-water-content scenes such as gravel aggregate grading and mineral washing and selecting; and the advantages in water saving and automation levels are obvious.

Description

Technical Field

[0001] This invention relates to the field of mechanical screening technology, and more specifically, to an energy-saving water-circulating fully automatic vibration screening device and its control system. Background Technology

[0002] Industries such as metallurgy, coal, mining, and cement use a large amount of bulk sieve materials in their production processes. These sieve materials come in various sizes, and a screening process is generally used to screen out sieve materials of suitable size. Then, a water washing process is used to remove the powder and clay from the surface of the screened sieve materials. This traditional screening method requires two processes to process the sieve materials. To address the shortcomings of the traditional screening process, water washing and screening are combined in a coordinated manner, as disclosed in the main content of patent number CN102407223A.

[0003] However, it is still difficult to avoid the fact that multiple screens (such as the first screen plate and the second screen plate) need to be designed for multi-stage screening. Different particle sizes of impurities can be classified and processed through layered screening. Multiple screens can be installed horizontally or vertically in layers. Although horizontally inclined installation makes it easier to collect the undersize material, it requires a large installation space. Although vertically in layers requires a small installation space, it is not easy to collect the oversize and undersize materials separately in a timely manner. Furthermore, neither horizontally inclined installation nor vertically layered installation of the screen body can effectively solve the problem of screen hole clogging. Therefore, an energy-saving water-circulating fully automatic vibrating screening device and its control system are proposed. Summary of the Invention

[0004] The purpose of this invention is to solve existing practical problems. Compared with existing technologies, it provides an energy-saving water-circulating fully automatic vibration screening device and its control system. The purpose of this invention can be achieved through the following technical solutions: One of the solutions provided by the present invention is an energy-saving water circulation type fully automatic vibrating screening device, which includes a base with a sewage tank and a screening cylinder fixedly installed on the upper end of the base. A cross-shaped vibrating screen is installed inside the screening cylinder by rotation drive. A vibrating motor for vibrating the cross-shaped vibrating screen is fixed at the front end of the screening cylinder. Feeding channels are embedded in the upper sides of the rear end of the screening cylinder. A discharge port is opened at the bottom of the screening cylinder. Spray pipes are distributed on both sides of the upper end of the screening cylinder. The cross-shaped vibrating screen includes a rotating shaft that rotates around the axis of the screening cylinder. A fine screen is fixed horizontally on the outer end wall of the rotating shaft, and a coarse screen is fixed vertically. The screening cylinder has a discharge port located below the horizontal plane of its axis. A lifting box adapted to the discharge port is slidably installed on the outer end of the screening cylinder. A return port adapted to the discharge outlet of the lifting box is opened on the upper end of the screening cylinder on the side away from the discharge port. The sewage tank has a discharge trough at the top center that is connected to the discharge port, and a side groove corresponding to the discharge port is opened at the upper side of the sewage tank. A drain conveying assembly is installed inside the sewage tank, and a water circulation mechanism connected to the sewage tank and the spray pipe is also provided on one side of the base.

[0005] Furthermore, a rotational space is reserved between the fine screen, the coarse screen, and the inner wall of the screening cylinder to match the installation position of the spray pipe, and a connecting platform installed in the rotational space is fixedly connected to the left and right opposite inner walls of the screening cylinder.

[0006] Furthermore, a guide platform is fixedly connected to the inner wall of the lower end of the discharge port, and the end of the guide platform away from the inner wall of the screening cylinder is movably connected to the outer wall of the fine screen and the coarse screen.

[0007] Furthermore, the front and rear end walls of the screening cylinder located between the discharge port and the return port are fixedly installed with annular electric guide rails for circumferential conveying of the lifting box, and the lifting box has a feeding chute connected to the discharge port on the side facing the discharge port.

[0008] Furthermore, the sewage tank has discharge openings adapted to the drain conveying assembly on the front and rear sides and the side near the side opening. The drain conveying assembly includes a drain ramp 1 and a drain ramp 2 fixedly connected to the left and right and slidably installed on the front and rear discharge openings, and a drive cylinder fixedly installed on the side discharge opening and inclined outward and downward.

[0009] Furthermore, the first and second drainage ramps are respectively connected by a pair of discharge openings distributed in front and behind in opposite directions and are inclined downwards. Drainage holes are opened on the bottom wall of the first, second and third drainage ramps, and discharge ports are opened at the bottom of the inclined ends of the first, second and third drainage ramps.

[0010] Furthermore, a pair of drive cylinders are fixedly installed at the end of the screening cylinder away from the third draining channel. The telescopic ends of the pair of drive cylinders penetrate the sewage tank and are fixedly connected to the end wall of the first draining channel. The ends of the first and second draining channels that are far apart from each other slide on a pair of discharge openings distributed in front and behind through a sliding sleeve.

[0011] Furthermore, the water circulation mechanism includes a filter dewatering machine connected to the sewage tank. The outlet of the filter dewatering machine is connected to a water storage tank, and the outlet of the water storage tank is connected to a spray pipe through a circulation pipe.

[0012] The second solution provided by the present invention: a control system for an energy-saving water circulation type fully automatic vibration screening device, including an operation information monitoring module, an equipment control module, and a storage module; The operation information monitoring module is used to monitor the working status of the vibrating screening device, including the flow rate of the screened material, the vibration parameters, rotation parameters, and water circulation control parameters of the cross-shaped vibrating screen, and sends monitoring signals to the equipment control module according to the working status. The equipment control module is used to receive control commands from the operator terminal and monitoring signals sent by the operation information monitoring module, and make control and processing decisions based on the monitoring signals; The storage module is used to store historical operating parameter records of each module of the vibration screening device.

[0013] Compared with the prior art, the advantages of this invention are: 1. This solution integrates a multi-stage screening module with "spatial flipping + double-group alternation + screen material lifting circulation" by setting up a cross-shaped vibrating screen adapted to the screening cylinder and a lifting box that rotates along the outer wall of the screening cylinder. This integrates the traditional multi-process into a single machine. Through the rotation of the cross-shaped vibrating screen, the gravity operation of the screened material, and the external circulation of the screened material, the screened material can complete three-stage efficient separation and collection under the action of single-layer rotation circulation and water washing. On the other hand, the cross-shaped vibrating screen changes its role (receiving surface / screen surface) during rotation. Through reverse water washing and flipping vibration, the risk of screen hole blockage is completely eliminated. It is particularly suitable for high moisture content scenarios such as sand and gravel aggregate grading and mineral washing and beneficiation, and has significant advantages in water saving and automation.

[0014] 2. Based on the above, a drainage mechanism is added inside the sewage tank to drain the mixture of screened material and water from multiple screening stages, which facilitates the timely collection of screened material from each screening stage. In addition, by coupling with water circulation technology, a closed-loop water treatment system is achieved, realizing the water treatment goal of efficient screening and cleaning with zero discharge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the structure at the junction of the base and the screening cylinder of the present invention; Figure 3 This is a cross-sectional view of the inside of the screening cylinder during the first-stage screening process of the present invention; Figure 4 This is a schematic diagram of the structure of the spray pipe of the present invention; Figure 5 This is a cross-sectional view of the screening cylinder during the first-stage screening process of the present invention; Figure 6 This is a cross-sectional view of the inside of the screening cylinder when the material on the screen is exported after the first-stage screening process of the present invention. Figure 7 This is a cross-sectional view of the screening cylinder when the material on the screen is extracted after the first-stage screening process according to the present invention. Figure 8This is a cross-sectional view of the inside of the screening cylinder during secondary screening according to the present invention; Figure 9 This is a cross-sectional view of the screening cylinder during the secondary screening process of the present invention; Figure 10 This is a cross-sectional view of the inside of the screening cylinder when the oversize material is discharged after the secondary screening process according to the present invention; Figure 11 This is a cross-sectional view of the inside of the screening cylinder during the continuous discharge of the oversize material after the secondary screening process of the present invention. Figure 12 This is a schematic diagram of the structure at the junction of the base and the drainage mechanism of the present invention; Figure 13 This is a schematic diagram of the drainage mechanism of the present invention.

[0016] Explanation of the labels in the diagram: 1. Base; 101. Wastewater tank; 102. Material discharge chute 1; 103. Side chute opening; 2. Screening cylinder; 201. Feeding channel; 202. Material discharge port; 203. Discharge port; 204. Return port; 205. Connecting platform; 206. Guide platform; 3. Cross-shaped vibrating screen; 31. Rotating shaft; 32. Fine screen; 33. Coarse screen; 4. Rotary motor; 5. Vibrating motor; 6. Circular electric guide rail; 7. Lifting box; 8. Spray pipe; 9. Drainage mechanism; 91. Drainage ramp one; 92. Drainage ramp two; 93. Drive push cylinder; 94. Drainage ramp three; 10. Filter dehydrator; 11. Water storage tank; 12. Circulation pipe. Detailed Implementation

[0017] 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 a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example 1: This invention discloses an energy-saving water-circulating fully automatic vibration screening device. Please refer to [link / reference]. Figures 1-4 It includes a base 1 with a sewage tank 101 and a screening cylinder 2 fixedly installed on its upper end. A cross-shaped vibrating screen 3 is rotatably installed inside the screening cylinder 2. A rotary motor 4 that drives the cross-shaped vibrating screen 3 to rotate is fixed at the rear end of the screening cylinder 2. A vibrating motor 5 that vibrates the cross-shaped vibrating screen 3 is fixed at the front end of the screening cylinder 2. The upper sides of the rear end of the screening cylinder 2 are fitted with feeding channels 201 that feed material to the cross-shaped vibrating screen 3. The bottom of the screening cylinder 2 is provided with a discharge port 202. Spray pipes 8 are distributed on both sides of the upper end of the screening cylinder 2. Each spray pipe 8 is fixedly installed with a nozzle that sprays horizontally towards the middle of the screening cylinder 2. The inner ends of the multiple spray pipes 8 are connected to an external water source through an annular pipe.

[0019] The fine screen 32, the coarse screen 33 and the inner wall of the screening cylinder 2 are all reserved with a rotation space that matches the installation position of the spray pipe 8. The left and right inner walls of the screening cylinder 2 are fixedly connected with a connecting platform 205 installed in the rotation space. The upper surface of the connecting platform 205 is an inclined surface that is inclined upward toward the inner wall of the screening cylinder 2, which does not affect the horizontal vibration screening of the screened material. The front and rear end walls of the screening cylinder 2, located between the discharge port 203 and the return port 204, are fixedly equipped with annular electric guide rails 6 for circumferential conveying of the lifting box 7. The lifting box 7 has a feed chute connected to the side facing the discharge port 203. A guide platform 206 is fixedly connected to the lower inner wall of the discharge port 203. The end of the guide platform 206 away from the inner wall of the screening cylinder 2 is movably connected to the outer wall of the fine screen 32 and the coarse screen 33. The bottom surface of the guide platform 206 and the discharge port 203 are inclined downwards. On the one hand, during the rotation of the cross-shaped vibrating screen 3, the material on the screen is conveyed to the lifting box 7 through the guide platform 206 and the discharge port 203.

[0020] Basic working principle: Please refer to Figure 3 and Figure 5 In the initial state, a pair of fine screens 32 are arranged horizontally. The material to be processed is quantitatively fed into the pair of fine screens 32 through a pair of feed channels 201. The vibration motor 5 is started, and the vibration motor 5 drives the entire cross-shaped rotating vibrating screen to vibrate at high frequency. Under vibration, the material is diffused from one end of the fine screen 32 to the other end, and the pair of horizontally arranged fine screens 32 vibrate synchronously. At the same time, the spray pipe 8 is started to spray and rinse the screened material evenly on the horizontal plane of a pair of fine screens 32. The fine screens 32 intercept medium and large particles, while small particles pass through. The small particles filtered out are discharged through the discharge port 202 for subsequent dewatering. The wastewater flows into the wastewater pool 101, realizing the first water washing and screening. Please see Figures 6-9 Then, the cross-shaped vibrating screen 3 is rotated clockwise. The screen material on the left-side drainage chute 2 92 falls onto the gradually leveling coarse screen 33 after clockwise rotation, while the screen material on the right-side drainage chute 2 92 falls into the lifting box 7 through the discharge port 203 during rotation. The function is as follows: After the material falling from the fine screen 32 on one side is collected, it rotates upward in a circular motion until it is conveyed to the top and then falls onto the coarse screen 33 on the left side through the return port 204. In this way, after the screen plate structure rotates 90 degrees as a whole, the material on the screen after the first screening is evenly distributed on a pair of horizontally arranged coarse screens 33 for the second-level horizontal vibration screening. After secondary screening, the undersize material is medium-sized particles, while the oversize material consists of large particles that remain on coarse sieve 33. Please refer to [link / reference]. Figures 10-11 Then, rotate the cross-shaped vibrating screen 3 clockwise. First, the material on the coarse screen 33 near the discharge port 203 is discharged through the exposed discharge port 203. Then, continue to rotate the cross-shaped vibrating screen 3. The material on the other coarse screen 33 is poured onto the fine screen 32. When the fine screen 32 moves to the guide platform 206, the material on the coarse screen 33 is completely discharged from the side opening, realizing multi-stage water washing and screening.

[0021] By setting up a cross-shaped vibrating screen adapted to the screening cylinder and an lifting box that rotates along the outer wall of the screening cylinder, a multi-stage screening module integrating "space flipping + double-group alternation + screening material lifting circulation" is integrated to realize the integration of traditional multi-process into a single machine. That is, through the rotation of the cross-shaped vibrating screen, the gravity operation of the screened material, and the external circulation of the screened material, the screened material completes three-stage efficient separation and collection under the action of single-layer rotation circulation and water washing. In addition, the cross-shaped vibrating screen 3 continuously changes its role (receiving surface / screen surface) during rotation, and thoroughly removes the risk of screen hole blockage through reverse water washing and flipping vibration tilting.

[0022] Example 2: Based on Example 1, this example adds a draining mechanism 9 inside the sewage tank 101 for draining and collecting the mixture of screened material and water from the multi-stage screening, and adds a water circulation mechanism to achieve closed-loop water circulation, as detailed below: Please see Figure 2 and Figure 12 , Figure 13 The sewage tank 101 has a discharge trough 102 at the top of the middle section, which is connected to the discharge port 202. The sewage tank 101 has a side groove 103 at the upper side, which corresponds to the position of the discharge port 203. The sewage tank 101 is equipped with a drain conveying assembly that is compatible with the discharge trough 102 and the side groove 103. The sewage tank 101 has discharge openings that are compatible with the drain conveying assembly on the front and rear sides of the upper end and on the side near the side groove 103. The drain conveying assembly includes a drain ramp 91 and a drain ramp 92 that are fixedly connected to each other and slidably installed on a pair of front and rear discharge openings, and a drive cylinder 93 that is fixedly installed on the side discharge opening and is inclined downwards outwards. The drain ramp 91 and the drain ramp 92 pass through a pair of front and rear discharge openings in opposite directions and are inclined downwards. Drainage holes are provided on the bottom walls of drainage sloping channels 1 91, 2 92 and 3 94, and discharge ports are provided at the bottom of the inclined ends of drainage sloping channels 1 91, 2 92 and 3 94. Collection boxes corresponding to the positions of the discharge ports are provided at the front, back and outer sides of the base 1.

[0023] A pair of drive cylinders 93 are fixedly installed at the end of the screening cylinder 2 away from the third drainage chute 94. The telescopic ends of the pair of drive cylinders 93 penetrate the sewage tank 101 and are fixedly connected to the end wall of the first drainage chute 91. The ends of the first drainage chute 91 and the second drainage chute 92 that are far apart from each other slide on a pair of discharge openings distributed in front and behind through a sliding sleeve. During the first-stage vibratory screening, the first drainage chute 91 is located directly below the discharge port 202. The undersize material from the fine screen 32 mixed with the rinsing water falls from 302 into the first drainage chute 91 and moves downwards along the inclined surface of the first drainage chute 91 toward the discharge port. During this process, after the water is drained through the drainage holes, the undersize material falls into the collection box through the discharge port. During the second-stage vibratory screening, the first drainage chute 91 and the second drainage chute 92 are pushed horizontally by the drive cylinder 93 until the second drainage chute 92 moves to below the discharge port 202. The undersize material from another group is collected by the inclined chute using the second chute 92. After the secondary screening is completed, the oversize material falls into the third chute 94 through the discharge port 203 and the side trough 103. The inclined chute is used for collection. Since the oversize material has been washed multiple times, the water content is low when it finally falls. Therefore, the length of the third chute 94 can be appropriately shortened.

[0024] It should be added that, in order to improve the cleaning effect of the primary and secondary screened materials, spray pipes inclined towards the center can be installed on both sides of the bottom of the discharge port 203 to perform secondary compensation rinsing on the screened materials falling into the first and second drainage inclined channels 91 and 92, so that fine mud and sand can be discharged through the drainage holes and separated from the screened materials.

[0025] A water circulation mechanism is also provided on one side of the base 1, which is connected to the sewage tank 101 and the spray pipe 8. The water circulation mechanism includes a filter dewatering machine 10 connected to the sewage tank 101. A water storage tank 11 is connected to the outlet of the filter dewatering machine 10. The outlet of the water storage tank 11 is connected to the spray pipe 8 through the circulation pipe 12. The flushing water flows into the sewage tank 101, and is pumped into the filter dewatering machine 10 through the pipeline and water circulation pump for filtration. The filtered clean water flows back into the water storage tank 11 and acts on the spray pipe 8 through the circulation pipe 12 to achieve closed-loop water circulation.

[0026] Example 3: A control system for an energy-saving water-circulating fully automatic vibration screening device, comprising an operation information monitoring module, an equipment control module, and a storage module; The operation information monitoring module is used to monitor the working status of the vibrating screening device, including the material flow rate, vibration parameters (amplitude, frequency) of the cross-shaped vibrating screen 3, rotation parameters (rotation frequency) and water circulation control parameters (inlet water flow rate, pressure), and sends monitoring signals to the equipment control module according to the working status; The equipment control module is used to receive control commands from the operator terminal and monitoring signals sent by the operation information monitoring module, and make control and processing decisions based on the monitoring signals; The storage module is used to store historical operating parameter records of each module of the vibration screening device. Based on the historical operating parameters, a superior screening and washing scheme is formulated. By coupling vibration screening with water circulation technology and combining intelligent control, the goal of efficient screening and cleaning and zero discharge water treatment is achieved. It is particularly suitable for high moisture content scenarios such as sand and gravel aggregate grading and mineral washing and beneficiation, and has significant advantages in water saving and automation.

[0027] This invention integrates a multi-stage screening module with "spatial flipping + double-group rotation + screen material lifting and circulation" by setting a cross-shaped vibrating screen 3 adapted to the screening cylinder 2 and a lifting box 7 that rotates along the outer wall of the screening cylinder 2. This integrates the traditional multi-process into a single machine. Through the rotation of the cross-shaped vibrating screen 3, the gravity operation of the screened material, and the external circulation of the screened material, the screened material achieves three-stage efficient separation under the action of water washing and rinsing, and the drainage mechanism 9 achieves step-by-step drainage and collection of the screened material. On the other hand, the cross-shaped vibrating screen 3 changes its role as the receiving surface / screen surface during rotation, and the risk of screen hole blockage is thoroughly eliminated through reverse water washing and flipping vibration. In addition, the coupling with water circulation technology realizes closed-loop water circulation, which is particularly suitable for high moisture content scenarios such as sand and gravel aggregate grading and mineral washing and beneficiation. It has significant advantages in water saving and automation.

[0028] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving water-circulating fully automatic vibrating screening device, comprising a base (1) with a sewage tank (101) and a screening cylinder (2) fixedly installed on the upper end of the base (1), characterized in that: The screening cylinder (2) is equipped with a cross-shaped vibrating screen (3) inside. A vibrating motor (5) for vibrating the cross-shaped vibrating screen (3) is fixed at the front end of the screening cylinder (2). Feeding channels (201) are embedded on the upper sides of the rear end of the screening cylinder (2). A discharge port (202) is opened at the bottom of the screening cylinder (2). Spray pipes (8) are distributed on both sides of the upper end inside the screening cylinder (2). The cross-shaped vibrating screen (3) includes a rotating shaft (31) that rotates around the axis of the screening cylinder (2). A fine screen (32) is fixed horizontally on the outer end wall of the rotating shaft (31), and a coarse screen (33) is fixed vertically. A discharge port (203) is provided on the lower side of the horizontal plane of the axis of the screening cylinder (2). A lifting box (7) that matches the discharge port (203) is slidably installed on the outer end of the screening cylinder (2). A return port (204) that matches the discharge outlet of the lifting box (7) is provided on the upper end of the screening cylinder (2) away from the discharge port (203). The sewage tank (101) has a material drop trough (102) and a side trough (103) connected to the material drop port (202) and the discharge port (203) respectively at the top center and the upper side. The sewage tank (101) is equipped with a drain conveying assembly. The base (1) is also equipped with a water circulation mechanism connected to the sewage tank (101) and the spray pipe (8) on one side.

2. The energy-saving water-circulating fully automatic vibration screening device according to claim 1, characterized in that: The fine screen (32), the coarse screen (33) and the inner wall of the screening cylinder (2) are all reserved with a rotation space that matches the installation position of the spray pipe (8). The left and right inner walls of the screening cylinder (2) are fixedly connected with connecting platforms (205) installed in the rotation space.

3. The energy-saving water-circulating fully automatic vibration screening device according to claim 2, characterized in that: The lower inner wall of the discharge port (203) is fixedly connected to a guide platform (206), and the end of the guide platform (206) away from the inner wall of the screening cylinder (2) is movably connected to the outer wall of the fine screen (32) and the coarse screen (33).

4. The energy-saving water-circulating fully automatic vibrating screening device according to claim 1, characterized in that: The screening cylinder (2) is fixedly equipped with an annular electric guide rail (6) for circumferential conveying of the lifting box (7) on both the front and rear end walls between the discharge port (203) and the return port (204).

5. The energy-saving water-circulating fully automatic vibrating screening device according to claim 1, characterized in that: The sewage tank (101) has discharge openings on the front and rear sides and the side near the side opening (103) at the top. The drain conveying assembly includes a drain ramp 1 (91) and a drain ramp 2 (92) fixedly connected to the left and right and slidably installed on the front and rear discharge openings, and a drive cylinder (93) fixedly installed on the side discharge opening and tilted outward and downward.

6. The energy-saving water-circulating fully automatic vibration screening device according to claim 5, characterized in that: The first (91) and the second (92) of the drainage sluice pass through a pair of discharge openings distributed in front and behind each other in opposite directions and are inclined downwards. Drainage holes are provided on the bottom walls of the first (91), the second (92) and the third (94) of the drainage sluice, and discharge ports are provided at the bottom of the inclined ends of the first (91), the second (92) and the third (94) of the drainage sluice, and discharge ports are provided at the bottom of the inclined ends of the drainage sluice, the second (92) and the third (94) of the drainage sluice.

7. The energy-saving water-circulating fully automatic vibration screening device according to claim 6, characterized in that: A pair of drive cylinders (93) are fixedly installed at the end of the screening cylinder (2) away from the third drainage chute (94). The telescopic ends of the pair of drive cylinders (93) pass through the sewage tank (101) and are fixedly connected to the end wall of the first drainage chute (91).

8. The energy-saving water-circulating fully automatic vibrating screening device according to claim 1, characterized in that: The water circulation mechanism includes a filter dewatering machine (10) connected to the sewage tank (101). The water outlet of the filter dewatering machine (10) is connected to a water storage tank (11). The water outlet of the water storage tank (11) is connected to the spray pipe (8) through a circulation pipe (12).

9. A control system for an energy-saving water-circulating fully automatic vibrating screening device, characterized in that: It includes an operation information monitoring module, an equipment control module, and a storage module; The operation information monitoring module is used to monitor the working status of the vibrating screening device, including the flow rate of the screened material, the vibration parameters, rotation parameters and water circulation control parameters of the cross-shaped vibrating screen (3), and sends monitoring signals to the equipment control module according to the working status. The equipment control module is used to receive control commands from the operator terminal and monitoring signals sent by the operation information monitoring module, and make control and processing decisions based on the monitoring signals; The storage module is used to store historical operating parameter records of each module of the vibration screening device.

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