Vibrating screen with classified filtering function

Abstract

The utility model provides a vibrating screen for classified filtration, and relates to the technical field of filtration equipment, and the vibrating screen is characterized in that the vibrating screen is used for achieving classified filtration on raw materials discharged by an extruder and comprises a first frame body, the first frame body is of a horizontally-arranged frame structure, and the extruder is arranged on one side, in the length direction, of the first frame body; the extruder is provided with a discharge port, and the side, close to the extruder, of the first frame body is located below the discharge port of the extruder; a first filter sieve and a second filter sieve are sequentially arranged between the two sides, facing each other, of the first frame in the length direction away from the extruder, the first filter sieve is provided with a plurality of first leakage holes, the second filter sieve is provided with a plurality of second leakage holes, and the diameter of the first leakage holes is larger than that of the second leakage holes. The vibrating screen with the graded filtering function has the beneficial effects that graded filtering is achieved on raw materials discharged by an extruder, and the raw materials are prevented from being stacked.

Description

Technical Field

[0001] The present application relates to the technical field of filtering equipment, and in particular to a vibrating screen for graded filtering. Background Art

[0002] During the production process, the raw materials need to be cut and processed by the extruder, and then transported to the dehydrator by water for dehydration in order to facilitate subsequent processing. Before the raw materials enter the dehydrator along with the water flow, they can be pre-separated on a vibrating screen to increase the dehydration speed.

[0003] When the traditional pre-separable vibrating screen structure dehydrates the raw materials, some of the raw materials have irregular shapes after processing and are easily stuck in the drain holes of the vibrating screen, resulting in accumulation of the raw materials subsequently transported, affecting the subsequent feeding of the dehydrator and resulting in poor use effect. For example, the processed raw materials appear as a rectangular raw material with greater friction and more edges and corners, which is easily hindered by the bottom drain plate and stays at the bottom of the drain plate. The subsequent raw materials are easily affected and cause accumulation.

[0004] Improvements are urgently needed to address the above issues. Utility Model Content

[0005] The purpose of the present application is to provide a vibrating screen for graded filtration, which has the advantages of achieving graded filtration of raw materials discharged from an extruder and preventing accumulation of raw materials.

[0006] The present application provides a vibrating screen for graded filtration, which is used to grade and filter raw materials discharged from an extruder. The technical solution is as follows:

[0007] The first frame body comprises a first frame body which is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body along the length direction, the extruder is provided with a discharge port, and a side of the first frame body close to the extruder is located below the discharge port of the extruder;

[0008] A first filter screen and a second filter screen are sequentially arranged between the two sides of the first frame facing each other along the length direction away from the extruder. The first filter screen is provided with a plurality of first leakage holes, and the second filter screen is provided with a plurality of second leakage holes. The diameter of the first leakage holes is greater than the diameter of the second leakage holes.

[0009] The vibrating screen for graded filtration provided in the present application is used to achieve graded filtration of raw materials discharged from an extruder, and includes a first frame body, the first frame body is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body along the length direction, the extruder is provided with a discharge port, and the side of the first frame body close to the extruder is located below the discharge port of the extruder; a first filter screen and a second filter screen are sequentially arranged between the two sides of the first frame facing each other along the length direction away from the extruder, the first filter screen is provided with a plurality of first leakage holes, and the second filter screen is provided with a plurality of second leakage holes, and the diameter of the first leakage holes is greater than the diameter of the second leakage holes. Through the above structure, when the raw materials are discharged from the discharge port of the extruder, the raw materials will fall onto the first filter screen at the first frame. With the transportation of water flow, the raw materials will move along the first filter screen to the second filter screen. Since the water flow at the first filter screen is large, it is very easy for the raw materials to accumulate together quickly, and the water flow cannot be discharged in time. In this case, the diameter of the first leakage hole of the first filter screen is larger than the diameter of the second leakage hole of the second filter screen, so most of the water flow at the first filter screen will be discharged in time, and at the same time, it will not affect the water flow to transport the raw materials to the second filter screen. The smaller raw materials will fall out through the first leakage hole of the first filter screen, and the larger raw materials will reach the second filter screen. The second filter screen also plays a further discharge role on the water flow at the current position to prevent the raw materials from gathering together. Through the cooperation of the first filter screen and the second filter screen, the raw materials discharged from the extruder are graded and filtered to prevent the accumulation of raw materials.

[0010] Further, in the present application, the first frame is provided with a first discharge port on a side close to the second filter screen and away from the first filter screen.

[0011] The vibrating screen for graded filtration provided in the present application has a first frame body with a first discharge port on a side close to the second filter screen and away from the first filter screen, which is used to discharge the larger raw materials at the position of the second filter screen after the smaller raw materials are discharged, thereby achieving graded filtration and facilitating subsequent collection.

[0012] Further, in the present application, the height of the first discharge port is lower than the height of the second filter screen.

[0013] The vibrating screen for graded filtration provided in the present application has a first discharge port whose height is lower than that of the second filter screen, which facilitates the raw materials to reach the first discharge port smoothly along with the water flow, and prevents the raw materials from being transported untimely or having poor transport effects due to the small water flow at the second filter screen. It also prevents the raw materials from piling up, thereby facilitating graded filtration of the raw materials.

[0014] Further, in the present application, guide plates are provided on both sides of the first frame body facing each other between the second filter screen and the first discharge port, and the height of the guide plates gradually decreases from the second filter screen in the direction of the first discharge port.

[0015] The vibrating screen for graded filtration provided by the present application has guide plates arranged on the two sides of the first frame facing each other between the second filter screen and the first discharge port, and the height of the guide plates gradually decreases from the second filter screen in the direction of the first discharge port. Since most of the water flow will be discharged when passing through the first filter screen and the second filter screen, the above structure can effectively improve the raw material conveying effect between the second filter screen and the first discharge port, realize rapid guided conveying of raw materials, and enable the raw materials between the second filter screen and the first discharge port to quickly move to the first discharge port and be discharged in time.

[0016] Furthermore, in the present application, a collecting box is provided below the first frame body near the first filter screen and the second filter screen, a second discharge port is provided at the bottom of the collecting box on a side close to the second filter screen and away from the first filter screen, and a drainage port is provided at the bottom of the collecting box.

[0017] Further, in the present application, the height of the water discharge port is lower than the height of the second discharge port.

[0018] Further, in the present application, the length of the first filter screen is smaller than the length of the second filter screen.

[0019] Furthermore, in the present application, the first filter screen and the second filter screen are spliced ​​to form a whole screen, and the top surface height of the whole screen gradually decreases along the length direction of the first frame as it moves away from the extruder.

[0020] Furthermore, in the present application, the first frame is provided with a surrounding plate around the edge of the entire screen, and the height of the surrounding plate is higher than the height of the entire screen.

[0021] Furthermore, in the present application, the first leakage hole and the second leakage hole are both circular through-hole structures.

[0022] As can be seen from the above, the present application provides a vibrating screen for graded filtration, which is used to achieve graded filtration of raw materials discharged from an extruder, and includes a first frame body, the first frame body is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body along the length direction, the extruder is provided with a discharge port, and the side of the first frame body close to the extruder is located below the discharge port of the extruder; a first filter screen and a second filter screen are sequentially arranged between the two sides of the first frame facing each other along the length direction away from the extruder, the first filter screen is provided with a plurality of first leakage holes, and the second filter screen is provided with a plurality of second leakage holes, and the diameter of the first leakage holes is greater than the diameter of the second leakage holes. Through the above structure, after the raw materials are discharged from the discharge port of the extruder, the raw materials will fall onto the first filter screen at the first frame body, and along with the conveying of the water flow, the raw materials will move along the first filter screen to the second filter screen. Since the water flow at the first filter screen is relatively large, it is very easy for the raw materials to accumulate together quickly, and the water flow cannot be discharged in time. In this case, the diameter of the first leakage hole of the first filter screen is larger than the diameter of the second leakage hole of the second filter screen, and most of the water flow at the first filter screen will be discharged in time, while the water flow will not affect the conveying of the raw materials to the second filter screen. The smaller raw materials will fall out through the first leakage hole of the first filter screen, and the larger raw materials will reach the second filter screen. The second filter screen also plays a further discharge role on the water flow at the current position to prevent the raw materials from gathering together. Through the cooperation of the first filter screen and the second filter screen, the raw materials discharged from the extruder are graded and filtered to prevent the accumulation of raw materials. The first frame body is provided on a side close to the second filter screen and away from the first filter screen. There is a first discharge port, which is used to discharge the larger raw materials at the position of the second filter screen after the smaller raw materials are discharged, so as to achieve graded filtration and facilitate subsequent collection; the height of the first discharge port is lower than the height of the second filter screen, which is conducive to the raw materials to reach the first discharge port smoothly with the water flow, and prevents the raw materials from being transported untimely or poorly due to the small water flow at the second filter screen, and also prevents the raw materials from piling up, so as to facilitate the graded filtration of the raw materials; the two sides of the first frame body facing each other are provided with guide plates between the second filter screen and the first discharge port, and the height of the guide plates gradually decreases from the second filter screen along the direction of the first discharge port. Since most of the water will be discharged when passing through the first filter screen and the second filter screen, the above structure can effectively improve the raw material conveying effect between the second filter screen and the first discharge port, realize the rapid guided conveying of the raw materials, and make the raw materials between the second filter screen and the first discharge port quickly move to the first discharge port and be discharged in time.

[0023] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present application. The purpose and other advantages of the present application can be achieved and obtained through the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of a graded filtration vibrating screen provided in this application.

[0025] Figure 2 This is the second structural schematic diagram of a vibrating screen for graded filtration provided in this application.

[0026] Figure 3 A cross-sectional view of a vibrating screen for graded filtration provided in the present application.

[0027] In the figure: 1. first frame; 2. first filter screen; 201. first leakage hole; 3. second filter screen; 301. second leakage hole; 4. first discharge port; 5. guide plate; 6. collection box; 7. second discharge port; 8. drainage port; 9. enclosure. DETAILED DESCRIPTION

[0028] The technical solutions in the present application will be clearly and completely described below in conjunction with the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] Please refer to Figures 1 to 3As shown, the present application provides a vibrating screen for graded filtration, which is used to achieve graded filtration of raw materials discharged from an extruder, including a first frame body 1, the first frame body 1 is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body 1 along the length direction, the extruder is provided with a discharge port, and the side of the first frame body 1 close to the extruder is located below the discharge port of the extruder; a first filter screen 2 and a second filter screen 3 are sequentially arranged between the two sides of the first frame body 1 facing each other along the length direction away from the extruder, the first filter screen 2 is provided with a plurality of first leakage holes 201, the second filter screen 3 is provided with a plurality of second leakage holes 301, and the diameter of the first leakage holes 201 is greater than the diameter of the second leakage holes 301.

[0031] Specifically, when the traditional pre-separable vibrating screen structure dehydrates the raw materials, some of the raw materials have irregular shapes after processing and are easily stuck in the drain holes of the vibrating screen, resulting in accumulation of the raw materials subsequently transported, affecting the subsequent feeding of the dehydrator and resulting in poor use effect. For example, the processed raw materials appear as a rectangular raw material with greater friction and more edges and corners, which is easily hindered by the leakage of the bottom drain plate and stays at the bottom of the drain plate. The subsequent raw materials are easily affected and cause accumulation. Therefore, in order to solve the above problems, the vibrating screen for graded filtration provided in the present application is used to realize graded filtration of raw materials discharged from an extruder, and includes a first frame body 1, the first frame body 1 is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body 1 along the length direction, the extruder is provided with a discharge port, and the side of the first frame body 1 close to the extruder is located below the discharge port of the extruder; a first filter screen 2 and a second filter screen 3 are sequentially arranged between the two sides of the first frame body 1 facing each other along the length direction away from the extruder, the first filter screen 2 is provided with a plurality of first leakage holes 201, and the second filter screen 3 is provided with a plurality of second leakage holes 301, and the diameter of the first leakage hole 201 is greater than the diameter of the second leakage hole 301. Through the above structure, when the raw materials are discharged from the discharge port of the extruder, the raw materials will fall onto the first filter screen 2 at the first frame 1. With the transportation of water flow, the raw materials will move along the first filter screen 2 to the second filter screen 3. Since the water flow at the first filter screen 2 is large, it is very easy for the raw materials to accumulate quickly, and the water flow cannot be discharged in time. In this case, the diameter of the first leakage hole 201 of the first filter screen 2 is larger than the diameter of the second leakage hole 301 of the second filter screen 3, so most of the water flow at the first filter screen 2 is discharged in time, and at the same time, it does not affect the water flow to transport the raw materials to the second filter screen 3. The smaller raw materials fall out through the first leakage hole 201 of the first filter screen 2, and the larger raw materials reach the second filter screen 3. The second filter screen 3 also plays a further discharge role on the water flow at the current position to prevent the raw materials from gathering together. Through the cooperation of the first filter screen 2 and the second filter screen 3, the raw materials discharged from the extruder are graded and filtered to prevent the accumulation of raw materials.

[0032] In some preferred embodiments, the first frame body 1 is provided with a first discharge port 4 on a side close to the second filter screen 3 and away from the first filter screen 2 .

[0033] Specifically, the first frame 1 is provided with a first discharge port 4 on a side close to the second filter screen 3 and away from the first filter screen 2, which is used to discharge the larger raw materials at the position of the second filter screen 3 after the smaller raw materials are discharged, thereby realizing graded filtration and facilitating subsequent collection.

[0034] In some preferred embodiments, the height of the first discharge port 4 is lower than the height of the second filter screen 3 .

[0035] Specifically, the height of the first discharge port 4 is lower than the height of the second filter screen 3, which facilitates the raw materials to reach the first discharge port 4 smoothly with the water flow, and prevents the raw materials from being transported untimely or having poor transport effects due to the small water flow at the second filter screen 3. It also prevents the raw materials from piling up, thereby facilitating the graded filtration of the raw materials.

[0036] In some preferred embodiments, guide plates 5 are provided between the second filter screen 3 and the first discharge port 4 on both sides of the first frame 1 facing each other, and the height of the guide plates 5 gradually decreases from the second filter screen 3 along the direction of the first discharge port 4.

[0037] Specifically, guide plates 5 are provided between the second filter screen 3 and the first discharge port 4 on the two sides of the first frame 1 facing each other, and the height of the guide plates 5 gradually decreases from the second filter screen 3 in the direction of the first discharge port 4. Since the water flow will be mostly discharged when passing through the first filter screen 2 and the second filter screen 3, the above structure can effectively improve the raw material conveying effect between the second filter screen 3 and the first discharge port 4, realize the rapid guided conveying of the raw materials, and make the raw materials between the second filter screen 3 and the first discharge port 4 move quickly to the first discharge port 4 and be discharged in time. In this embodiment, the upper surface of the guide plate 5 is a smooth and polished structure, which realizes the smooth guided conveying of the raw materials, facilitates the decomposition and filtration of the raw materials, and prevents the accumulation of the raw materials.

[0038] In some preferred embodiments, a collecting box 6 is provided below the first frame 1 near the first filter screen 2 and the second filter screen 3, a second discharge port 7 is provided at the bottom of the collecting box 6 on a side close to the second filter screen 3 and away from the first filter screen 2, and a drain port 8 is provided at the bottom of the collecting box 6.

[0039] Specifically, in order to effectively discharge and collect the water flow that transports the raw materials, and to effectively collect the raw materials with smaller sizes, in the present embodiment, a collecting box 6 is provided below the first frame 1 near the first filter screen 2 and the second filter screen 3, and a second discharge port 7 is provided at the bottom of the collecting box 6 on the side close to the second filter screen 3 and away from the first filter screen 2, for discharging and subsequently collecting the raw materials with smaller sizes, and a drain port 8 is provided at the bottom of the collecting box 6 for efficiently discharging the water flow, preventing excessive accumulation of water flow, which affects the transportation and discharge of the raw materials, and avoiding the phenomenon of raw materials piling up.

[0040] In some preferred embodiments, the height of the drain port 8 is lower than the height of the second discharge port 7 .

[0041] Specifically, in order to facilitate the discharge of raw materials while achieving efficient discharge of water, in the present embodiment, the height of the drain port 8 is lower than the height of the second discharge port 7. Through the arrangement of the above-mentioned structure, the water is discharged in time through the drain port 8. When the raw materials reach the second discharge port 7, the water has been discharged in time from the drain port 8 at a higher height, thereby preventing excessive accumulation of water and affecting the discharge of raw materials from the second discharge port 7, thereby ensuring the discharge effect of the second discharge port 7 on the raw materials.

[0042] In some preferred embodiments, the length of the first filter screen 2 is shorter than the length of the second filter screen 3 .

[0043] Specifically, the flow rate of water at the first filter screen 2 is larger, and the flow rate of water at the second filter screen 3 is smaller. Therefore, in order to enable the first filter screen 2 and the second filter screen 3 to discharge the water more reasonably and efficiently, and at the same time prevent excessive or insufficient water flow at the second filter screen 3, in the present embodiment, the length of the first filter screen 2 is smaller than the length of the second filter screen 3. Through the arrangement of the above structure, the first filter screen 2 can discharge most of the water flow in time, prevent excessive accumulation of water flow at the second filter screen 3, avoid affecting the transportation and discharge of raw materials, and prevent the accumulation of raw materials. At the same time, the length of the first filter screen 2 is smaller than the length of the second filter screen 3, which is also conducive to the water flow reaching the second filter screen 3 to transport the raw materials to the first discharge port 4 more smoothly and reasonably, thereby realizing graded filtration of raw materials.

[0044] In some preferred embodiments, the first filter screen 2 and the second filter screen 3 are spliced ​​to form a whole screen, and the top surface height of the whole screen gradually decreases along the length direction of the first frame 1 as it moves away from the extruder.

[0045] Specifically, in order to further facilitate the transportation of raw materials by water flow and realize the smooth transmission and graded discharge of raw materials, in the present embodiment, the first filter screen 2 and the second filter screen 3 are spliced ​​to form a whole screen, and the top surface height of the whole screen gradually decreases along the length direction of the first frame 1 as it moves away from the extruder. Through the arrangement of the above structure, the water flow and the raw materials will produce a more stable and efficient transportation effect under the action of gravity when passing through the first filter screen 2 and the second filter screen 3, so that the water flow has a more powerful transportation effect on the raw materials, ensuring that the smaller raw materials are discharged from the first filter screen 2 in time, and the larger raw materials continue to be transported to the second filter screen 3 until they are discharged from the first discharge port 4, thereby realizing graded filtration of the raw materials and preventing the raw materials from piling up.

[0046] In some preferred embodiments, the first frame 1 is provided with a surrounding plate 9 around the edge of the entire screen, and the height of the surrounding plate 9 is higher than the height of the entire screen.

[0047] Specifically, in order to prevent water from overflowing the first frame 1 during the transportation of raw materials and to avoid affecting the transportation effect of the raw materials, in the present embodiment, the first frame 1 is provided with a panel 9 around the edge of the entire screen, and the height of the panel 9 is higher than the height of the entire screen. Through the arrangement of the above structure, the water flow is directional transported within the constraint of the panel 9, and a smooth and efficient transportation effect is achieved for the raw materials. With the cooperation of the first filter screen 2 and the second filter screen 3, graded filtration of the raw materials is achieved, and accumulation of the raw materials is also prevented.

[0048] In some preferred embodiments, the first leakage hole 201 and the second leakage hole 301 are both circular through-hole structures.

[0049] Specifically, the raw material discharged from the extruder is usually in a strip-shaped structure. Therefore, in order to achieve efficient graded filtration for the strip-shaped raw materials and prevent the strip-shaped raw materials from piling up on the first filter screen 2 and the second filter screen 3, in the present embodiment, the first leakage hole 201 and the second leakage hole 301 are both circular through-hole structures. The first leakage hole 201 and the second leakage hole 301 of the circular through-hole structure can achieve separate filtering effects on the strip-shaped raw materials with a higher fault tolerance rate, so that the smaller raw materials can be discharged from the first leakage hole 201 of the first filter screen 2 in time, and the larger raw materials pass through the second filter screen 3 and arrive at the first discharge port 4 for discharge. At the same time, the discharge is prevented from being affected by the accumulation of raw materials.

[0050] In some preferred embodiments, the two side enclosures 9 in the length direction of the first frame body 1 are gradually arranged closer to each other as they approach the first discharge port 4 .

[0051] Specifically, in order to enable the raw materials to be discharged through the first discharge port 4 conveniently and efficiently, in the present embodiment, the side panels 9 on the length direction of the first frame 1 are gradually arranged to be close to each other as they approach the first discharge port 4. When the raw materials move along the first filter screen 2 and the second filter screen 3 to the guide plate 5, under the action of the above-mentioned panels 9, the raw materials will gradually approach the first discharge port 4 along the panels 9 on both sides. In particular, the raw materials located at the two side positions will be brought together under the action of the panels 9. As a result, when the raw materials reach the first discharge port 4, they will be discharged through the first discharge port 4 in a concentrated and efficient manner, which is conducive to the graded filtration of the raw materials.

[0052] Through the above technical scheme, the vibrating screen for graded filtration provided by the present application is used to realize graded filtration of raw materials discharged from an extruder, and includes a first frame body 1, the first frame body 1 is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame body 1 along the length direction, the extruder is provided with a discharge port, and the side of the first frame body 1 close to the extruder is located below the discharge port of the extruder; a first filter screen 2 and a second filter screen 3 are sequentially arranged between the two sides of the first frame body 1 facing each other along the length direction away from the extruder, the first filter screen 2 is provided with a plurality of first leakage holes 201, the second filter screen 3 is provided with a plurality of second leakage holes 301, and the diameter of the first leakage hole 201 is larger than the diameter of the second leakage hole 301. Through the above structure, when the raw materials are discharged from the discharge port of the extruder, the raw materials will fall onto the first filter screen 2 at the first frame 1. With the transportation of water flow, the raw materials will move along the first filter screen 2 to the second filter screen 3. Since the water flow at the first filter screen 2 is large, it is very easy for the raw materials to accumulate quickly, and the water flow cannot be discharged in time. In this case, the diameter of the first leakage hole 201 of the first filter screen 2 is larger than the diameter of the second leakage hole 301 of the second filter screen 3, so most of the water flow at the first filter screen 2 is discharged in time, and at the same time, it does not affect the water flow to transport the raw materials to the second filter screen 3. The smaller raw materials fall out through the first leakage hole 201 of the first filter screen 2, and the larger raw materials reach the second filter screen 3. The second filter screen 3 also plays a further discharge role on the water flow at the current position to prevent the raw materials from gathering together. Through the cooperation of the first filter screen 2 and the second filter screen 3, the raw materials discharged from the extruder are graded and filtered to prevent the accumulation of raw materials; the first frame 1 is close to the second filter screen 3 and away from the first filter screen 2. A first discharge port 4 is provided on the side, which is used to discharge the larger raw materials at the position of the second filter screen 3 after the smaller raw materials are discharged, so as to achieve graded filtration and facilitate subsequent collection; the height of the first discharge port 4 is lower than the height of the second filter screen 3, which is conducive to the raw materials to reach the first discharge port 4 smoothly with the water flow, and prevents the raw materials from being transported untimely or poorly due to the small water flow at the second filter screen 3, and also prevents the raw materials from piling up together, so as to facilitate the graded filtration of the raw materials; guide plates 5 are provided between the second filter screen 3 and the first discharge port 4 on both sides of the first frame 1 facing each other, and the height of the guide plates 5 gradually decreases from the second filter screen 3 along the direction of the first discharge port 4. Since the water flow will be mostly discharged when passing through the first filter screen 2 and the second filter screen 3, through the above structure, the raw material conveying effect between the second filter screen 3 and the first discharge port 4 can be effectively improved, and the rapid guided conveying of the raw materials can be achieved, so that the raw materials between the second filter screen 3 and the first discharge port 4 can be quickly moved to the first discharge port 4 and discharged in time.

[0053] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A vibrating screen for graded filtration, used for graded filtration of raw materials discharged from an extruder, characterized in that: The invention comprises a first frame (1), wherein the first frame (1) is a horizontally arranged frame structure, an extruder is arranged on one side of the first frame (1) along the length direction, the extruder is arranged with a discharge port, and a side of the first frame (1) close to the extruder is located below the discharge port of the extruder; A first filter screen (2) and a second filter screen (3) are sequentially arranged between two sides of the first frame (1) facing each other along a length direction away from the extruder; the first filter screen (2) is provided with a plurality of first leakage holes (201); the second filter screen (3) is provided with a plurality of second leakage holes (301); and the diameter of the first leakage holes (201) is greater than the diameter of the second leakage holes (301).

2. The vibrating screen for graded filtration according to claim 1, characterized in that: The first frame (1) is provided with a first discharge port (4) on a side close to the second filter screen (3) and away from the first filter screen (2).

3. The vibrating screen for graded filtration according to claim 2, characterized in that: The height of the first discharge port (4) is lower than the height of the second filter screen (3).

4. The vibrating screen for graded filtration according to claim 3, characterized in that: Guide plates (5) are arranged on two sides of the first frame (1) facing each other between the second filter screen (3) and the first discharge port (4), and the height of the guide plates (5) gradually decreases from the second filter screen (3) in the direction of the first discharge port (4).

5. The vibrating screen for graded filtration according to claim 1, characterized in that: A collecting box (6) is arranged below the first frame body (1) near the first filter screen (2) and the second filter screen (3); a second discharge port (7) is arranged at the bottom of the collecting box (6) on a side near the second filter screen (3) and away from the first filter screen (2); and a drainage port (8) is arranged at the bottom of the collecting box (6).

6. The vibrating screen for graded filtration according to claim 5, characterized in that: The height of the water discharge port (8) is lower than the height of the second material discharge port (7).

7. The vibrating screen for graded filtration according to claim 1, characterized in that: The length of the first filter screen (2) is shorter than the length of the second filter screen (3).

8. The vibrating screen for graded filtration according to claim 1, characterized in that: The first filter screen (2) and the second filter screen (3) are spliced ​​together to form a whole screen, and the height of the top surface of the whole screen gradually decreases along the length direction of the first frame (1) as it moves away from the extruder.

9. The vibrating screen for graded filtration according to claim 8, characterized in that: The first frame (1) is provided with a surrounding plate (9) at the edge of the entire screen, and the height of the surrounding plate (9) is higher than the height of the entire screen.

10. The vibrating screen for graded filtration according to claim 1, characterized in that: The first leakage hole (201) and the second leakage hole (301) are both circular through-hole structures.

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