Dehydration vibrating screen with angle-adjustable screen plate

Abstract

The embodiment of the utility model discloses a dewatering vibrating screen with an angle-adjustable screen plate. The dewatering vibrating screen comprises a machine shell, the screen plate and an angle adjusting mechanism. The angle adjusting mechanism comprises a rotating conversion assembly and a connecting piece, the sieve plate is arranged in the machine shell, the fixed end of the sieve plate is rotationally connected with the machine shell, the movable end of the sieve plate is rotationally connected with one end of the connecting piece, and the other end of the connecting piece is connected with the rotating conversion assembly; the rotating conversion assembly is used for providing rotating power and converting the rotating power into linear power of the connecting rod, so that the movable end of the sieve plate does circular motion around the fixed end of the sieve plate with the sieve plate as the radius. The angle adjusting assembly has the advantages of being high in angle adjusting precision, easy and convenient to adjust, good in structural movement stability, high in structural reliability, simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of vibrating screens, in particular to a dewatering vibrating screen with adjustable sieve plate angle. Background Technique

[0002] The dewatering vibrating screen equipment uses the high-frequency and small-amplitude motion of the vibrating screen to gradually separate the slurry containing sand and soil discharged during the shield tunneling process. The separated mud part is adjusted and then transported back to the excavation face, while the separated gravel and soil are directly transported out.

[0003] The screening of the dewatering vibrating screen is based on the different particle sizes of solids. The fine materials smaller than the sieve holes in the material pass through the sieve plate, while the coarse materials larger than the sieve holes remain on the sieve surface to complete the separation process of the coarse and fine materials. When the particle size composition of the material changes greatly, if the fine particles increase, the inclination angle of the sieve plate can be appropriately reduced to increase the residence time of the material on the sieve surface and improve the dewatering effect; if the coarse particles increase, the inclination angle of the sieve plate can be appropriately increased to accelerate the moving speed of the material on the sieve plate and prevent the accumulation of coarse particles from affecting the screening efficiency.

[0004] Most of the existing vibrating screens adjust the inclination angle by adjusting the height difference of the spring support seats on both sides. Since the vibrating screen box is relatively heavy, tools such as a traveling crane, electric hoist, or chain block need to be used to assist in the adjustment, which is time-consuming and laborious, and the center of gravity of the vibrating screen box is likely to be unstable, affecting the vibration operation effect. The existing Chinese patent document CN218108406U discloses a sieve plate adjustable high-efficiency environmental protection vibrating screen, in which an adjusting cylinder is provided at the bottom of the sieve plate as a power support to adjust the inclination angle of the sieve plate. Its cylinder not only has a high cost but also occupies a large space. Since water will drip under the dewatering sieve plate, the cylinder is extremely easy to be damaged by water ingress, and this structure is extremely unsuitable for use in the dewatering vibrating screen equipment for mud and water separation. Content of the Utility Model

[0005] The embodiment of the utility model discloses a dewatering vibrating screen with adjustable sieve plate angle to solve the problem of angle adjustment of the vibrating screen.

[0006] The embodiment of the utility model provides a dewatering vibrating screen with adjustable sieve plate angle, including:

[0007] A machine shell, a sieve plate, and an angle adjustment mechanism; the angle adjustment mechanism includes a rotation conversion component and a connecting piece,

[0008] The sieve plate is arranged inside the machine shell. The fixed end of the sieve plate is rotatably connected to the machine shell, the movable end of the sieve plate is rotatably connected to one end of the connecting piece, and the other end of the connecting piece is connected to the rotation conversion component;

[0009] The rotation conversion component is used to provide rotational power and convert the rotational power into linear power of the connecting piece, so that the movable end of the sieve plate makes a circular motion around the fixed end of the sieve plate with the sieve plate as the radius.

[0010] Further, the other end of the connecting piece is rotatably connected to the machine shell, or the other end of the connecting piece is rotatably connected to the rotation conversion component.

[0011] Further, the rotation conversion component includes an adjusting nut, the connecting piece includes a screw rod, and the adjusting nut is sleeved on the screw rod.

[0012] Further, the rotation conversion component further includes a fixed hinge, the fixed hinge is rotatably connected to the machine shell, and the fixed hinge is sleeved on the screw rod and is movably connected to the screw rod.

[0013] Further, the fixed hinge abuts against the adjusting nut.

[0014] Further, a convex part is arranged at the movable end of the sieve plate, a first round hole is arranged on the convex part, a second round hole is opened at the end of the connecting piece, and the convex part and the end of the connecting piece are rotatably connected by means of a screw passing through the first round hole and the second round hole and a nut is arranged at the end of the screw.

[0015] Further, the angle adjusting mechanism is arranged inside the machine shell and above the sieve plate.

[0016] Further, side holes are arranged on both sides of the fixed end of the sieve plate, a fixed shaft is arranged on the machine shell, the fixed shaft is placed in the side holes, and a shaft end fixing piece is arranged at the end of the fixed shaft.

[0017] Further, an arc-shaped structure is arranged at the machine shell near the movable end of the sieve plate, and the arc-shaped structure is used to keep the machine shell and the movable end of the sieve plate in close contact with equal gaps when the inclination of the sieve plate is adjusted.

[0018] Further, the angle adjusting mechanism is arranged on both sides of the sieve plate.

[0019] It can be seen from the combined technical solutions that the embodiments provided by the present invention have the following advantages:

[0020] The angle adjusting mechanism of this embodiment converts the rotational power into the linear power of the connecting piece through the rotation conversion component, so that the movable end of the sieve plate makes a circular motion around the fixed end of the sieve plate with the sieve plate as the radius, and finally realizes the adjustment of the inclination of the sieve plate. Compared with the cylinder, it has the advantages of high angle adjustment accuracy, easier control and simplicity in adjustment, good structural movement stability and strong structural reliability, and simple structure and low cost. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic cross-sectional view of the structure of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0023] Figure 2 It is a schematic top view of the structure of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0025] Figure 4 It is a schematic top view of the angle adjustment mechanism in a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention ( Figure 2 an enlarged view of part E);

[0026] Figure 5 It is a schematic diagram of the structure of the fixed hinge in a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the angle adjustment mechanism of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the inclined state of the sieve plate of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0029] Figure 8 It is a schematic three-dimensional structure diagram of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiment of the present invention;

[0030] Description of the drawings: 1. Machine shell; 2. Feed slurry inlet; 3. Slag discharge port; 4. Vibrator; 5. Sieve plate; 6. Bracket; 7. Support ear; 8. Split pin; 9. Fixed shaft; 10. Screw; 11. Fixed hinge; 12. Adjusting nut; 13. Spring fixing seat; 111. Arc plate; 101. U-shaped joint; 201. Rotating head; 202. Shaft. Detailed implementation manners

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0035] It should be understood that although each step in the flowchart of the drawings is shown in sequence according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limitation, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same moment, but can be executed at different moments, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0036] The embodiments of the present utility model disclose a dehydration vibrating screen with an adjustable sieve plate angle.

[0037] Please refer to Figure 1-8 , an embodiment of a dehydration vibrating screen with an adjustable sieve plate angle provided in the embodiments of the present utility model includes:

[0038] The casing 1, the sieve plate 5 and the angle adjustment mechanism,

[0039] The sieve plate 5 is arranged inside the casing 1. The fixed end of the sieve plate 5 is rotatably connected to the casing 1, and the movable end of the sieve plate 5 is connected to the angle adjustment mechanism.

[0040] The angle adjustment mechanism is used to provide power to make the movable end of the sieve plate 5 move in a circular motion around the fixed end of the sieve plate 5 with the sieve plate 5 as the radius, thereby realizing the adjustment of the inclination angle of the sieve plate 5.

[0041] In some more specific embodiments, the angle adjustment mechanism includes a rotation conversion component and a connecting piece. One end of the connecting piece is rotatably connected to the movable end of the sieve plate 5, and the other end of the connecting piece is connected to the rotation conversion component. The rotation conversion component is used to provide rotational power and convert the rotational power into linear power of the connecting piece, so that the movable end of the sieve plate 5 moves in a circular motion around the fixed end of the sieve plate 5 with the sieve plate 5 as the radius. It can be understood that the angle adjustment mechanism of this embodiment converts the rotational power into the linear power of the connecting piece through the rotation conversion component to drive the sieve plate 5 to rotate. Compared with the cylinder, it has the advantages of high angle adjustment accuracy, easier adjustment control and simplicity, good structural motion stability and strong structural reliability, and simple structure and low cost.

[0042] It should be noted that the angle adjustment mechanism of this embodiment adopts an angle adjustment mechanism formed based on the principle of converting rotational motion into linear motion. Compared with the structure of the angle adjustment mechanism composed of cylinders, it has the advantages of easier adjustment control and simplicity, good structural motion stability and strong structural reliability, and simple structure and low cost. The specific advantages are described as follows:

[0043] (1) During the process of adjusting the sieve plate angle of the dewatering vibrating screen, if the angle adjustment accuracy is not high, it may lead to a large angle deviation, affecting the flow rate of materials and the dewatering time. Mechanisms that convert rotational motion into linear motion (such as screw-nut mechanisms, etc.) can usually achieve high position accuracy. Through precise design and manufacturing, the displacement of the linear motion can be controlled very accurately, thereby realizing the precise adjustment of the sieve plate inclination, and the adjustment is easy to control and simple;

[0044] (2) Good motion stability: The rotation conversion mechanism can usually provide a relatively stable linear motion. Since its motion is realized through the conversion of mechanical structures, there is no gas compression and release process like that of a cylinder during the motion process, so the motion is more stable, reducing vibration and impact. The motion stability is good and it is not easy to get out of control, which plays a protective role for the sieve plate and its connecting equipment, helps to extend the service life of the equipment, and reduces the equipment maintenance cost;

[0045] (3) Relatively stable mechanical structure: The rotary motion conversion mechanism is usually composed of mechanical components, with a relatively stable structure and not easily affected by external environmental factors. For example, lead screw nut mechanisms, gear rack mechanisms, etc. have a long service life under normal operating conditions. While cylinders rely on gas sealing and compression and are easily affected by factors such as gas quality, temperature, and humidity, and the seals are also prone to wear, resulting in relatively low reliability and lifespan of the cylinders.

[0046] (4) Low maintenance cost: The maintenance of the rotary motion conversion mechanism is relatively simple, generally only requiring regular lubrication and inspection of the wear condition of mechanical components. While cylinders need to regularly inspect components such as seals and filters, and the maintenance cost is relatively high. In addition, in some harsh environments, such as high temperature, high dust, high humidity, etc., the rotary motion conversion mechanism has stronger adaptability and lower maintenance cost.

[0047] In some specific embodiments, the mechanical structure for converting rotary power into linear power includes: nut-screw structure, reel-winding flexible member structure, etc. The nut-screw structure drives the nut to move linearly along the axial direction of the screw by rotating the screw, or drives the screw to move axially by rotating the nut, thereby realizing the conversion of rotary power into linear power. The reel-winding flexible member structure winds ropes, belts, chains and other flexible members by rotating the reel, and pulls the object (sieve plate) connected thereto to move linearly.

[0048] In a more specific embodiment, the other end of the connecting member is rotatably connected to the machine housing 1, or the other end of the connecting member is rotatably connected to the rotary conversion assembly. It can be understood that the rotary conversion assembly only provides linear motion to the connecting member. In specific implementation, the other end of the connecting member being rotatably connected to the machine housing 1 or the rotary conversion assembly can enable the connecting member to rotate while moving linearly in the same plane, so that the movable end of the sieve plate 5 makes a circular motion around the fixed end of the sieve plate with the sieve plate as the radius, realizing the adjustment of the sieve plate angle.

[0049] In a more specific embodiment, the rotary conversion assembly includes an adjusting nut 12, and the connecting member includes a screw 10. When the adjusting nut 12 is sleeved on the screw 10, the rotation of the adjusting nut 12 or the screw 10 will cause relative movement between the adjusting nut 12 and the screw 10.

[0050] In a more specific embodiment, the adjusting nut 12 is the driving member and the screw rod 10 is the driven member. The rotation conversion assembly further includes a fixed hinge 11. The fixed hinge 11 is sleeved on the screw rod 10 and is movably connected to the screw rod 10. The fixed hinge 11 abuts against the adjusting nut 12, and the fixed hinge 11 is rotatably connected to the housing 1. It can be understood that in specific implementation, the fixed hinge 11 and the adjusting nut 12 are closely attached to each other, and are mutually extruded under the action of the pulling force generated by the self-weight of the sieve plate 5 on the screw rod 10. When the adjusting nut 12 rotates while abutting against the fixed hinge 10, relative sliding occurs between the screw rod 10 and the fixed hinge 11. When the adjusting nut 12 is stationary, the screw rod 10 and the fixed hinge 11 remain stable.

[0051] In a more specific embodiment, the fixed hinge 11 includes a rotating head 201 and a shaft 202. The rotating head 201 is the part sleeved on the screw rod 10. A rotating hole groove is formed on one side of the rotating head 201. One end of the shaft 202 is embedded and stuck in the rotating hole groove so that the shaft 202 cannot perform any axial or radial movement in the rotating hole groove and can only perform rotational movement. The other end of the shaft 202 is fixedly connected to the housing 1. In some more specific implementation manners, the rotating head 201 is a cube, and in some other more specific implementation manners, the rotating head 201 is a cylinder.

[0052] In a more specific embodiment, the screw rod 10 is arranged above the sieve plate 5, the adjusting nut 12 is arranged on the side far from the movable end of the sieve plate 5, and the fixed hinge 11 is arranged on the side close to the movable end of the sieve plate 5. The screw rod 10 drops towards the direction close to the movable end of the sieve plate 5 under the action of the gravity of the sieve plate 5. At this time, the adjusting nut 12 can remain stable on one side of the fixed hinge 11, preventing relative movement between the screw rod 10 and the fixed hinge 11, and thus realizing the function of adjusting the movement of the screw rod 10 when the adjusting nut 12 rotates. When the adjusting nut 12 is stationary, it can play a role in stabilizing the screw rod 10.

[0053] In some more specific implementation manners, the screw rod 10 is arranged below the sieve plate 5, the adjusting nut 12 is arranged on the side close to the movable end of the sieve plate 5, and the fixed hinge 11 is arranged on the side far from the movable end of the sieve plate 5. The screw rod 10 drops towards the direction far from the movable end of the sieve plate 5 under the action of the gravity of the sieve plate 5. At this time, the adjusting nut 12 can remain stable on one side of the fixed hinge 11, preventing relative movement between the screw rod 10 and the fixed hinge 11, and thus realizing the function of adjusting the movement of the screw rod 10 when the adjusting nut 12 rotates. When the adjusting nut 12 is stationary, it can play a role in stabilizing the screw rod 10.

[0054] In a more specific embodiment, a nut is added on the side of the fixed hinge 11 far from the adjusting nut 12 to prevent the screw rod 10 from loosening when the acting force between the adjusting nut 12 and the fixed hinge 11 becomes small.

[0055] In a more specific embodiment, a nut is added on the side of the adjusting nut 12 away from the fixed hinge 11 to reinforce the load-bearing capacity of the adjusting nut 12 and prevent the screw rod from falling off.

[0056] In a more specific embodiment, the angle adjusting mechanism is arranged inside the casing 1, which is easy to install.

[0057] In a more specific embodiment, the angle adjusting mechanism is arranged above the sieve plate 5 to prevent the angle adjusting mechanism from being soaked by muddy water.

[0058] In some more specific embodiments, the angle adjusting mechanism is arranged outside the casing 1, which is convenient for operation and completely avoids being stained by muddy water. However, an arc-shaped opening needs to be provided on the side of the casing for the connection and movement of the movable end of the sieve plate and the angle adjusting mechanism outside the casing. At this time, the angle adjusting mechanism can be arranged above or below the sieve plate 5.

[0059] It should be noted that when the angle adjusting mechanism is arranged above the sieve plate 5, the connection end of the screw rod 10 and the sieve plate 5 is lower than the fixed hinge 11. When the angle adjusting mechanism is arranged below the sieve plate 5, the connection end of the screw rod 10 and the sieve plate 5 is higher than the fixed hinge 11.

[0060] It should be noted that the angle adjusting mechanism is installed above the sieve plate 5 and on both inner sides of the casing 1, occupying a small space. By adjusting the adjusting nut 12 on the screw rod, the inclination angle of the sieve plate 1 can be adjusted. The adjustment is simple and easy. The angle adjusting mechanisms on both sides of the sieve plate 1 are adjusted simultaneously to ensure the balance of both sides of the sieve plate 5. The processing technology of the screw rod 10 and the fixed hinge 11 of the angle adjusting mechanism in this embodiment is mainly conventional welding, and most of the materials used are standard parts and conventional profiles. The required materials are less, and the production and manufacturing cost is low.

[0061] In some more specific embodiments, both the rotary driving member and the connecting member are screw rods, and the movable node is internally threaded. When the screw rod is rotated, under the guidance of the movable node, the screw rod generates linear and rotary motions, thereby driving the movable end of the sieve plate to perform a circular motion.

[0062] In some more specific embodiments, the rotary driving member is a reel, the reel is rotatably connected to the casing, the connecting member is a chain or a steel wire rope. One end of the connecting member is connected to the movable end of the sieve plate, and the other end is wound around the reel. It can be understood that by rotating the reel, the telescoping of the connecting member is realized, thereby driving the movable end of the sieve plate to perform a circular motion around the fixed end of the sieve plate with the sieve plate as the radius, and finally realizing the adjustment of the inclination of the sieve plate. When the sieve plate needs to be tilted downward, the turntable is rotated to release a longer connecting member. When the sieve plate needs to be tilted upward, the turntable is rotated to contract the connecting member. The inclination angle of the sieve plate can be accurately controlled by controlling the number of rotation turns and the rotation angle of the turntable.

[0063] In some more specific embodiments, the rotary drive assembly is a lead screw-nut structure or a rack and pinion mechanism. The connecting member is rotatably connected to the rotary drive assembly. It can be understood that during specific implementation, the length of the connecting member is fixed, and the rotary drive assembly drives the other end of the connecting member to move linearly and simultaneously causes the connecting member to rotate, thereby realizing the circular motion of the movable end of the sieve plate. The lead screw-nut structure can provide high precision and stability, and the rack and pinion mechanism can be achieved by selecting appropriate gear and rack parameters.

[0064] The materials used in the angle adjustment mechanism in the above embodiments are mostly standard parts and conventional profiles, with less material required and low production and manufacturing costs.

[0065] In a more specific embodiment, the upper part of the casing 1 is connected to two vibrators 4, and a spring fixing seat 13 is provided below the casing 1. In a more specific embodiment, the spring fixing seats 13 are distributed at the four corners of the casing. The vibrator 4 is a vibration power source, and in cooperation with the spring, it can cause the casing 1 to vibrate, and then drive the sieve plate inside the casing 1 to vibrate.

[0066] In a more specific embodiment, a slurry inlet 2 is provided above the casing, and a slag outlet 3 is provided on one side of the casing 1 away from the slurry inlet 2. In a more specific embodiment, the slurry inlet 2 is located above the movable end of the sieve plate 5, and the slag outlet 3 is located near the fixed end of the sieve plate 5. It can be understood that the slurry to be filtered enters from the slurry inlet 2 and falls onto the movable end of the sieve plate for filtration. At this time, the movable end of the sieve plate 5 can be higher or lower than the fixed end. After the filtration is completed, the movable end of the sieve plate 5 is higher than the fixed end, and the remaining large-particle slurry rolls to the fixed end of the sieve plate 5 and is output from the slag outlet 3. In a more specific embodiment,

[0067] A guiding support is provided at the slag outlet 3. The starting end of the guiding support is located below the end of the fixed end of the sieve plate 5, so that when the large-particle slurry on the sieve plate 5 is output from the slag outlet 3, it can be avoided that there is a gap between the fixed end of the sieve plate 5 and the slag outlet 3, and the large-particle slurry falls into the bottom of the casing 1 from the gap. At the same time, the guiding support makes it smoother for the large particles to roll out of the slag outlet 3 from the sieve plate 5.

[0068] In a more specific embodiment, an arc-shaped structure is provided near the movable end of the sieve plate 5 on the casing 1. The arc-shaped structure is used to keep the casing 1 in close contact with the movable end of the sieve plate 5 at an equal gap when the inclination of the sieve plate 5 is adjusted. In some more specific embodiments, the arc-shaped structure is an arc-shaped plate 111. The movable end of the sieve plate is located below the slurry inlet 2. The inner wall of the casing 1 near the movable end is provided with an arc-shaped plate 111 that matches the movement track of the movable end. When the sieve plate 5 adjusts the inclination angle, it can ensure that the end of the sieve plate 5 and the contact surface of the arc-shaped plate maintain an equal-distance small gap, preventing large-particle slurry from leaking from the edge and ensuring good screening effect. In some more specific embodiments, the arc-shaped structure is an arc-shaped groove on the casing. In some other more specific embodiments, the arc-shaped structure is an arc-shaped sieve mesh, so that when the arc-shaped structure and the movable end of the sieve plate maintain an equal gap, the filtering surface on the side is also increased.

[0069] In some more specific embodiments, a blocking member can be provided at the end of the movable end of the sieve plate 5 to prevent large-particle slurry from leaking from the edge.

[0070] In some more specific embodiments, the slurry inlet 2 is located above the fixed end of the sieve plate 5, and the slag outlet 3 is located near the movable end of the sieve plate 5. It can be understood that the slurry to be filtered enters the fixed end of the sieve plate from the slurry inlet 2. At this time, the movable end of the sieve plate 5 can be higher or lower than the fixed end. After the filtering is completed, the movable end of the sieve plate 5 is lower than the fixed end to discharge the large-particle slurry. In this embodiment, the fixed end of the sieve plate is the starting end of the sieve plate, which always maintains the same distance from the casing, and there is no need to additionally provide an arc-shaped plate 111.

[0071] In a more specific embodiment, the connectors at the movable end of the sieve plate are connected by a hinge structure. A convex member is provided at the movable end of the sieve plate, and a first round hole is provided on the convex member to form an ear 7. The end of the connector is provided with a second round hole of the same size as the first round hole. After the first round hole and the second round hole are coaxially and closely arranged, a screw is passed through from one side, and a nut is fixed on the other side to realize the rotational connection between the connector and the sieve plate. In a more specific embodiment, the end of the connector is provided with a U-shaped joint 101. The third round hole and the fourth round hole are provided on both sides of the U-shaped joint 101. The first round hole is located between the third round hole and the fourth round hole. The screw passes through these round holes one by one from one side, and a nut is fixed on the other side to realize the rotational connection between the connector and the sieve plate. In some more specific embodiments, structures such as ball hinge connection and bushing connection can be used to realize the rotational connection between the connector and the sieve plate.

[0072] In a more specific embodiment, a bracket 6 is provided at the bottom of the sieve plate, and the convex member is fixed on the bracket 6.

[0073] In this embodiment, the sieve plate can be drawn out from the discharge end for maintenance and replacement by removing the screws connecting the U-shaped joint 101 and the screws fixing the sieve plate and the bracket 6, and the maintenance is simple.

[0074] In a more specific embodiment, side holes are provided in brackets 6 at both bottoms of the fixed ends of the sieve plate 5. A fixed shaft 9 is provided on the said casing. The fixed shaft 9 passes through from one side of the side hole to the other side. A through hole is provided at the end of the fixed shaft 9 for inserting a split pin 8, and the split pin 8 is used to clamp the bracket 6 to prevent the sieve plate 5 from falling off the fixed shaft. In some more specific embodiments, shaft end fixing parts such as nuts and shaft end retaining rings can be provided at the end of the fixed shaft 9. In some other more specific embodiments, the fixed end of the sieve plate can be rotatably connected to the casing by means of sliding bearings, rolling bearings, bushing connections, etc.

[0075] In a more specific embodiment, the casing 1, the guiding brackets of the slurry inlet 2 and the slag outlet 3, the lugs 7, the fixed hinge 11, the spring fixing seat 13, and the arc plate 111 are made of carbon steel, the sieve plate 5 is made of polyurethane or stainless steel, and the fixed shaft 9, the screw 10, the adjusting nut 10, and the nut are made of stainless steel.

[0076] In a more specific embodiment, the working principle of a dehydration vibrating screen with an adjustable sieve plate angle is as follows:

[0077] The slurry to be filtered enters the sieve plate 5 of the dehydration vibrating screen from the slurry inlet 2. Under the exciting action of the two exciters 4, the whole vibrating screen produces linear operation with high frequency and small amplitude.

[0078] When the fine particles in the slurry falling on the sieve plate 5 increase, the inclination angle of the sieve plate 5 can be appropriately adjusted. For example, Figure 1 the inclination angle of the sieve plate 5 is adjusted to Figure 7 the sieve plate angle, and the movable end of the sieve plate 5 is higher than the fixed end of the sieve plate 5 and is changed to the movable end of the sieve plate 5 being lower than the fixed end of the sieve plate 5. The adjustment steps are as follows: First, rotate the adjusting nut 12 away from the movable end of the sieve plate 5, and the screw 10 moves towards the movable end of the sieve plate 5. The length of the screw 10 between the movable end of the sieve plate 5 and the fixed hinge 11 becomes longer, and at the same time, the screw 10 rotates clockwise around the shaft 202, that is, the sieve plate 5 inclines towards the bottom of the casing 1. The adjusted angle is adjusted to a suitable inclination angle of the sieve plate 5 according to the particle size state of the incoming material to increase the residence time of the material on the sieve surface and improve the dehydration effect.

[0079] When the coarse particles in the incoming slurry increase, the inclination angle of the sieve plate 5 can be appropriately adjusted. For example, Figure 7 the sieve plate angle is adjusted to Figure 1The angle of the sieve plate 5 changes such that the movable end of the sieve plate 5 is lower than the fixed end of the sieve plate 5 and becomes higher than the fixed end of the sieve plate 5. The adjustment steps are as follows: First, rotate the adjusting nut 12 towards the movable end of the sieve plate 5. The screw rod 10 moves away from the movable end of the sieve plate 5. The length of the screw rod 10 between the movable end of the sieve plate 5 and the fixed hinge 11 becomes shorter, and simultaneously, the screw rod 10 rotates counterclockwise around the shaft 202, that is, the sieve plate 5 inclines towards the top of the machine housing 1. The adjusted angle is adjusted according to the particle size state of the incoming material to an appropriate inclination angle of the sieve plate 5, accelerating the movement speed of the material on the sieve plate and preventing the accumulation of coarse particles from affecting the screening efficiency.

[0080] It should be noted that the terms describing the positional relationship in the above examples and drawings are only for illustrative purposes and should not be construed as a limitation of this patent. The above-described various embodiments of the present invention are merely examples given for clearly explaining the present invention and are not limitations on the implementation modes of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation modes here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A dehydration vibrating screen with adjustable sieve plate angle, characterized in that, Comprising: A casing (1), a sieve plate (5) and an angle adjustment mechanism; the angle adjustment mechanism includes a rotation conversion component and a connecting piece, The sieve plate (5) is arranged inside the casing (1), the fixed end of the sieve plate (5) is rotatably connected to the casing (1), the movable end of the sieve plate (5) is rotatably connected to one end of the connecting piece, and the other end of the connecting piece is connected to the rotation conversion component; The rotation conversion component is used to provide rotational power and convert the rotational power into linear power of the connecting piece, so that the movable end of the sieve plate (5) makes a circular motion around the fixed end of the sieve plate (5) with the sieve plate (5) as the radius.

2. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 1, wherein The other end of the connecting piece is rotatably connected to the casing (1), or the other end of the connecting piece is rotatably connected to the rotation conversion component.

3. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 2, characterized in that, The rotation conversion component includes an adjusting nut (12), and the connecting piece includes a screw rod (10), and the adjusting nut (12) is sleeved on the screw rod (10).

4. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 3, characterized in that, The rotation conversion component further includes a fixed hinge (11), the fixed hinge (11) is rotatably connected to the casing (1), the fixed hinge (11) is sleeved on the screw rod (10) and is movably connected to the screw rod (10).

5. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 4, characterized in that, The fixed hinge (11) abuts against the adjusting nut (12).

6. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 1, wherein A convex member is arranged at the movable end of the sieve plate (5), a first round hole is arranged on the convex member, a second round hole is opened at the end of the connecting piece, and the convex member and the end of the connecting piece are rotatably connected by a screw passing through the first round hole and the second round hole and a nut is arranged at the end of the screw.

7. The dehydrating vibrating screen with adjustable sieve plate angle according to claim 1, wherein The angle adjustment mechanism is arranged inside the casing (1) and above the sieve plate (5).

8. The dehydration vibrating screen with adjustable sieve plate angle according to claim 1, characterized in that, Side holes are arranged on both sides of the fixed end of the sieve plate (5), a fixed shaft (9) is arranged on the casing (1), the fixed shaft (9) is placed in the side holes, and a shaft end fixing piece is arranged at the end of the fixed shaft.

9. The dehydration vibrating screen with adjustable sieve plate angle according to claim 1, characterized in that, An arc-shaped structure is arranged at the casing (1) near the movable end of the sieve plate, and the arc-shaped structure is used to keep the casing (1) and the movable end of the sieve plate (5) in equal-gap fit when the inclination of the sieve plate (5) is adjusted.

10. The dehydration vibrating screen with adjustable sieve plate angle according to claim 1, characterized in that, The angle adjustment mechanism is arranged on both sides of the sieve plate (5).

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