A feed preliminary screening device

Abstract

The utility model discloses a kind of feed preliminary screening device, it is related to feed production technical field.The utility model includes screening cylinder, the side of screening cylinder is provided with feeding port, the inside of screening cylinder is provided with multistage filtering assembly, and the center position of multistage filtering assembly is provided with material handling assembly between the filter end of multistage filtering assembly several filtering is provided with pusher assembly.The utility model moves between screening cylinder and multistage filtering assembly and carries out screening to feed by pusher assembly, since pusher assembly can interval to feed, so that subsequent feed will not be accumulated to the upper side of mobile feed, and the defined space formed by screening cylinder and multistage filtering assembly can accurately control the feed amount of single processing, so that mobile feed is always in thin layer state with filtering assembly full contact, the above-mentioned setting avoids the screening blind area caused by material accumulation in traditional screening, ensures that multistage filtering assembly is fully screened to each portion of passing feed.

Description

Technical Field

[0001] This utility model belongs to the field of feed production technology, and specifically relates to a feed primary screening device. Background Technology

[0002] In the feed production process, primary screening is an indispensable and crucial step. Its purpose is to remove impurities, lumps, and materials that do not meet the particle size requirements from the feed raw materials, so as to ensure the smooth progress of subsequent processing and the stability of product quality.

[0003] Existing feed primary screening devices mostly adopt the traditional structure of flat screen combined with vibrating screen, and their working principle is mainly to achieve material separation through reciprocating motion. In actual operation, it has been found that when feed raw materials fall onto the screen surface in a concentrated manner, the material tends to form a continuous accumulation layer. Even under vibration, although the surface feed can be screened, the bottom material is difficult to move effectively due to the compression of the upper layer. As a result, some qualified feed particles remain inside the accumulation layer and cannot pass through the screen, causing some qualified feed to fail to be screened out in time, resulting in a significant problem of insufficient screening. Utility Model Content

[0004] In view of the problem that feed accumulates when it moves on the drying net, making it impossible for the screen to fully screen the accumulated feed, this utility model proposes a feed primary screening device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a feed primary screening device, including a screening cylinder, a feeding port is provided on one side of the screening cylinder, a multi-stage filtration assembly is provided inside the screening cylinder, a pushing assembly is provided between several filter ends of the multi-stage filtration assembly, a conveying assembly is provided at the center of the multi-stage filtration assembly, and a discharge assembly is provided at the bottom of the multi-stage filtration assembly.

[0007] The feeding pusher is used to move the feed outside the multi-stage filtration assembly so that the multi-stage filtration assembly can filter the feed. The conveying assembly is used to discharge the filtered feed from the inside of the screening cylinder. The discharge assembly is used to discharge the filtered impurities from the inside of the screening cylinder.

[0008] Furthermore, the multi-stage filtration assembly includes a first filter cylinder disposed inside the sieving cylinder, and a second filter cylinder and a third filter cylinder sequentially sleeved on the outer side of the first filter cylinder. Filter holes are formed on the upper surfaces of the first filter cylinder, the second filter cylinder and the third filter cylinder, and one end of the first filter cylinder, the second filter cylinder and the third filter cylinder are fixedly connected to the inner wall of the sieving cylinder.

[0009] Furthermore, the pushing assembly includes a rotating groove, which is opened on one side of the inner wall of the screening cylinder. A rotating disk is rotatably connected inside the rotating groove, and a de-drying pushing plate is fixedly connected to one side of the rotating disk. Multiple pushing plates are arranged in a circumferential array between the first filter cylinder, the second filter cylinder, and the third filter cylinder, and reinforcing rings are fixedly connected between several pushing plates.

[0010] Furthermore, a connecting plate is fixedly connected to one side of the rotating disk, the connecting plate extends to the outside of the screening cylinder, a driven gear is fixedly connected to the outer surface of the connecting plate, a driving gear meshes with the outer surface of the driven gear, a storage box is fixedly installed on the outside of the screening cylinder, a pusher motor is fixedly installed on the outside of the storage box, and the output end of the pusher motor is fixedly connected to the driving gear.

[0011] Furthermore, a plurality of support grooves are provided on one side of the rotating disk, and support rings are fixedly connected to the other ends of the first filter cylinder, the second filter cylinder and the third filter cylinder, and the plurality of support rings are rotatably connected to the corresponding support grooves.

[0012] Furthermore, the material conveying assembly includes a converging hopper, which is fixedly connected inside the first filter cylinder. A material conveying frame is fixedly connected to the bottom of the converging hopper. A rotating roller is rotatably connected inside the material conveying frame. A material conveying belt is provided on the outer surface of the rotating roller. One end of the material conveying frame extends into the interior of the screening cylinder. A material conveying motor is fixedly connected to the outer side of the material conveying frame. The output end of the material conveying motor is fixedly connected to the rotating roller.

[0013] Furthermore, the discharge assembly includes a discharge trough, which is located at the bottom of the second filter cylinder. The discharge trough passes through the third filter cylinder and the screening cylinder in sequence, and a discharge hopper is fixedly connected to the bottom outer surface of the screening cylinder corresponding to the discharge trough.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model allows feed to be fed into the screening cylinder and multi-stage filtration components through the feeding port. The pushing component then moves the feed between the two, causing the multi-stage filtration components to screen the feed. Because the pushing component can space the feed, subsequent feed will not accumulate on top of the moving feed. Furthermore, the limited space formed by the screening cylinder and the multi-stage filtration components allows for precise control of the amount of feed processed per batch, ensuring that the moving feed is always in full contact with the filtration components in a thin layer. This design effectively avoids the screening blind spots caused by material accumulation in traditional screening, ensuring that the multi-stage filtration components fully screen each batch of feed, significantly improving screening efficiency and accuracy.

[0016] 2. This utility model uses a rotating disc to drive several pusher plates to rotate between multiple filter cylinders. The filtered impurities are then pushed by the pusher plates to the discharge trough. Under their own weight, the impurities fall directly from the filter cylinder and the screening cylinder through the discharge trough and discharge hopper. This design ensures that the filtered impurities are discharged promptly, so that when the pusher plates push the feed again, there are no impurities between two adjacent pusher plates. Furthermore, the pusher plates and filter cylinders dynamically shield the sides of the discharge trough, effectively preventing feed particles that do not meet the screening requirements from prematurely discharging from the discharge trough.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the external outline structure of this utility model;

[0020] Figure 2 This is a bottom view of the sieve cylinder structure of this utility model;

[0021] Figure 3 This is a side sectional view of the screening cylinder of this utility model;

[0022] Figure 4 This is a schematic diagram of the pusher plate structure of this utility model;

[0023] Figure 5 For the present utility model Figure 4 Rear view structural diagram;

[0024] Figure 6 This is a schematic diagram of the multi-stage filtration component structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the material conveying component of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Screening cylinder; 2. Feeding port; 3. Multi-stage filtration assembly; 301. First filter cylinder; 302. Second filter cylinder; 303. Third filter cylinder; 304. Filter holes; 4. Pushing assembly; 401. Rotating groove; 402. Rotating disc; 403. Pushing plate; 404. Reinforcing ring; 405. Connecting disc; 406. Driven gear; 407. Driven gear; 408. Storage box; 409. Pushing motor; 5. Conveying assembly; 501. Converging hopper; 502. Conveying frame; 503. Rotating roller; 504. Conveying belt; 505. Conveying motor; 6. Discharge assembly; 601. Discharge trough; 602. Discharge hopper; 7. Support groove; 8. Support ring. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Please see Figures 1-7 As shown, this utility model is a feed primary screening device, including a screening cylinder 1, a feeding port 2 is provided on one side of the screening cylinder 1, a multi-stage filtration assembly 3 is provided inside the screening cylinder 1, a pushing assembly 4 is provided between several filter ends of the multi-stage filtration assembly 3, a conveying assembly 5 is provided at the center of the multi-stage filtration assembly 3, and a discharge assembly 6 is provided at the bottom of the multi-stage filtration assembly 3.

[0031] The feeding pusher 4 is used to move the feed outside the multi-stage filtration assembly 3 so that the multi-stage filtration assembly 3 can complete the filtration of the feed. The conveying assembly 5 is used to discharge the filtered feed from the inside of the screening cylinder 1. The discharge assembly 6 is used to discharge the filtered impurities from the inside of the screening cylinder 1.

[0032] When screening feed, feed is fed into the screening cylinder 1 through the feeding port 2. At this time, the feed is between the multi-stage filter assembly 3 and the screening cylinder 1. Then, the pushing assembly 4 is driven so that the pushing end of the pushing assembly 4 moves outside the multi-stage filter assembly 3. At the same time, the feed moves outside the multi-stage filter assembly 3 under the push of the pushing end, so that the multi-stage filter assembly 3 can screen the moving feed step by step. During this process, the screened feed can fall directly to the conveying assembly 5 and move out from the inside of the multi-stage filter assembly 3 and the screening cylinder 1 under the transport of the conveying assembly 5. The filtered impurities move to the bottom of the multi-stage filter assembly 3 under the push of the pushing end and can fall directly from the inside of the multi-stage filter assembly 3 and the screening cylinder 1 through the discharge assembly 6.

[0033] After the feed is fed into the screening cylinder 1 and the multi-stage filter assembly 3 through the feeding port 2, the pushing component 4 pushes the feed to move between the two and causes the multi-stage filter assembly 3 to screen the feed. Since the pushing component 4 can space the feed, the subsequent feed will not accumulate on the top of the moving feed. Moreover, the limited space formed by the screening cylinder 1 and the multi-stage filter assembly 3 can accurately control the amount of feed processed at one time, so that the moving feed is always in full contact with the filter assembly in a thin layer. The above settings effectively avoid the screening blind spots caused by material accumulation in traditional screening, and ensure that the multi-stage filter assembly 3 fully screens each batch of feed, significantly improving screening efficiency and accuracy.

[0034] In one embodiment, the multi-stage filtration assembly 3 includes a first filter cylinder 301, which is disposed inside the sieving cylinder 1. A second filter cylinder 302 and a third filter cylinder 303 are sequentially sleeved on the outside of the first filter cylinder 301. Filter holes 304 are provided on the upper surfaces of the first filter cylinder 301, the second filter cylinder 302 and the third filter cylinder 303. One end of the first filter cylinder 301, the second filter cylinder 302 and the third filter cylinder 303 is fixedly connected to the inner wall of the sieving cylinder 1.

[0035] After the feed is fed into the screening cylinder 1, the feed can form a thinner side between the screening cylinder 1 and the third filter cylinder 303. At this time, the pushing component 4 can push the feed, so that the feed can move towards the top of the third filter cylinder 303. During the movement, the third filter cylinder 303, the second filter cylinder 302 and the first filter cylinder 301 can screen the feed step by step through the corresponding filter holes 304. At the same time, the screened feed can fall directly into the interior of the first filter cylinder 301, while the filtered impurities are pushed by the pushing component 4 to the bottom of the screening cylinder 1, the third filter cylinder 303 and the second filter cylinder 302. The step-by-step filtering of feed can improve the filtering effect of the feed.

[0036] In one embodiment, the pushing assembly 4 includes a rotating groove 401, which is formed on one side of the inner wall of the screening cylinder 1. A rotating disk 402 is rotatably connected inside the rotating groove 401. A desiccation pushing plate 403 is fixedly connected to one side of the rotating disk 402. Multiple pushing plates 403 are arranged in a circumferential array between the first filter cylinder 301, the second filter cylinder 302, and the third filter cylinder 303. A reinforcing ring 404 is fixedly connected between several pushing plates 403.

[0037] By rotating the rotating disk 402, the rotating disk 402 can drive several pusher plates 403 to move continuously between the screening cylinder 1, the third filter cylinder 303, the second filter cylinder 302 and the first filter cylinder 301; the setting of the reinforcing ring 404 makes it less likely for the pusher plates 403 to deform when the feed is pushed.

[0038] In one embodiment, for the aforementioned rotating disk 402, a connecting disk 405 is fixedly connected to one side of the rotating disk 402. The connecting disk 405 extends to the outside of the screening cylinder 1. A driven gear 406 is fixedly connected to the outer surface of the connecting disk 405. A driving gear 407 meshes with the outer surface of the driven gear 406. A storage box 408 is fixedly installed on the outside of the screening cylinder 1. A pusher motor 409 is fixedly installed on the outside of the storage box 408. The output end of the pusher motor 409 is fixedly connected to the driving gear 407.

[0039] By driving the pusher motor 409, the pusher motor 409 drives the connecting disk 405 to rotate through the driving gear 407 and the driven gear 406. At the same time, the connecting disk 405 drives the rotating disk 402 to rotate inside the rotating groove 401.

[0040] In one embodiment, for the aforementioned rotating disk 402, a plurality of support grooves 7 are provided on one side of the rotating disk 402, and support rings 8 are fixedly connected to the other ends of the first filter cylinder 301, the second filter cylinder 302 and the third filter cylinder 303, and the plurality of support rings 8 are rotatably connected to the corresponding support grooves 7.

[0041] The support groove 7 can support the other end of several filter cylinders through the support ring 8. At the same time, one end of several filter cylinders is fixedly connected to the inner wall of the screening cylinder 1. At this time, both ends of several filter cylinders have support points, so that the stability of the filter cylinders can be guaranteed when filtering feed. At the same time, when the rotating disk 402 rotates, the support groove 7 can rotate outside the support ring 8, so that the rotation of the rotating disk 402 will not be hindered.

[0042] In one embodiment, the material conveying assembly 5 includes a converging hopper 501, which is fixedly connected inside the first filter cylinder 301. A material conveying frame 502 is fixedly connected to the bottom of the converging hopper 501. A rotating roller 503 is rotatably connected inside the material conveying frame 502. A material conveying belt 504 is provided on the outer surface of the rotating roller 503. One end of the material conveying frame 502 extends into the interior of the screening cylinder 1. A material conveying motor 505 is fixedly connected to the outer side of the material conveying frame 502. The output end of the material conveying motor 505 is fixedly connected to the rotating roller 503.

[0043] The filtered feed can fall directly into the collection hopper 501. Under the guidance of the collection hopper 501, the feed can fall onto the conveyor belt 504. At this time, the conveyor motor 505 can drive the conveyor belt 504 to move inside the conveyor frame 502 through the rotating roller 503, so that the conveyor belt 504 can continuously move the filtered feed out from the inside of the first filter cylinder 301 and the screening cylinder 1. The above settings can effectively prevent the filtered feed from accumulating inside the first filter cylinder 301.

[0044] In one embodiment, the discharge assembly 6 includes a discharge trough 601, which is located at the bottom of the second filter cylinder 302. The discharge trough 601 passes through the third filter cylinder 303 and the screening cylinder 1 in sequence. A discharge hopper 602 is fixedly connected to the bottom outer surface of the screening cylinder 1 corresponding to the discharge trough 601.

[0045] The filtered impurities can be moved to the discharge trough 601 by the pusher plate 403. At this time, the impurities can fall directly into the discharge hopper 602 under their own gravity and fall from the inside of the screening cylinder 1 under the guidance of the discharge hopper 602. In the above configuration, since several pusher plates 403 and filter cylinder can dynamically block the two sides of the discharge trough 601, the phenomenon of feed being discharged from the discharge trough 601 before filtration is completed is avoided.

[0046] Through the above technical solution, 1. After the feed is fed into the screening cylinder 1 and the multi-stage filtration assembly 3 through the feeding port 2, the pushing assembly 4 pushes the feed to move between the two and makes the multi-stage filtration assembly 3 screen the feed. Since the pushing assembly 4 can space the feed, the subsequent feed will not accumulate on the top of the moving feed. Moreover, the limited space formed by the screening cylinder 1 and the multi-stage filtration assembly 3 can accurately control the amount of feed processed at one time, so that the moving feed is always in full contact with the filtration assembly in a thin layer. The above settings effectively avoid the screening blind spots caused by material accumulation in traditional screening, and ensure that the multi-stage filtration assembly 3 fully screens each batch of feed, significantly improving screening efficiency and accuracy; 2. Through the rotating disc 402 The pusher plates 403 rotate between multiple filter cylinders, causing the filtered impurities to move to the discharge trough 601 under their own weight. The impurities then fall directly from the filter cylinder and the screening cylinder 1 through the discharge trough 601 and discharge hopper 602. This arrangement ensures timely discharge of filtered impurities, preventing impurities from being present between adjacent pusher plates 403 when the pusher plates 403 push the feed again. Furthermore, the pusher plates 403 and the filter cylinders dynamically shield the sides of the discharge trough 601, effectively preventing feed particles that do not meet screening requirements from prematurely discharging from the discharge trough 601.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feed primary screening device, comprising a screening cylinder (1), characterized in that, A feeding port (2) is provided on one side of the screening cylinder (1). A multi-stage filtration assembly (3) is provided inside the screening cylinder (1). A pushing assembly (4) is provided between several filtration ends of the multi-stage filtration assembly (3). A conveying assembly (5) is provided at the center of the multi-stage filtration assembly (3). A discharge assembly (6) is provided at the bottom of the multi-stage filtration assembly (3). The feeding pusher (4) is used to move the feed outside the multi-stage filtration assembly (3) so that the multi-stage filtration assembly (3) can filter the feed. The conveying assembly (5) is used to discharge the filtered feed from the inside of the screening cylinder (1). The discharge assembly (6) is used to discharge the filtered impurities from the inside of the screening cylinder (1).

2. The feed primary screening device according to claim 1, characterized in that, The multi-stage filtration assembly (3) includes a first filter cylinder (301), which is disposed inside the sieving cylinder (1). A second filter cylinder (302) and a third filter cylinder (303) are sequentially sleeved on the outside of the first filter cylinder (301). Filter holes (304) are opened on the upper surfaces of the first filter cylinder (301), the second filter cylinder (302) and the third filter cylinder (303). One end of the first filter cylinder (301), the second filter cylinder (302) and the third filter cylinder (303) are fixedly connected to the inner wall of the sieving cylinder (1).

3. The feed primary screening device according to claim 2, characterized in that, The feeding assembly (4) includes a rotating groove (401), which is opened on one side of the inner wall of the screening cylinder (1). A rotating disk (402) is rotatably connected inside the rotating groove (401). A desiccant feeding plate (403) is fixedly connected to one side of the rotating disk (402). Multiple feeding plates (403) are arranged in a circumferential array between the first filter cylinder (301), the second filter cylinder (302), and the third filter cylinder (303). A reinforcing ring (404) is fixedly connected between several feeding plates (403).

4. The feed primary screening device according to claim 3, characterized in that, A connecting plate (405) is fixedly connected to one side of the rotating disk (402). The connecting plate (405) extends to the outside of the screening cylinder (1). A driven gear (406) is fixedly connected to the outer surface of the connecting plate (405). A driving gear (407) meshes with the outer surface of the driven gear (406). A storage box (408) is fixedly installed on the outside of the screening cylinder (1). A pusher motor (409) is fixedly installed on the outside of the storage box (408). The output end of the pusher motor (409) is fixedly connected to the driving gear (407).

5. The feed primary screening device according to claim 3, characterized in that, The rotating disk (402) has several support grooves (7) on one side. The other end of the first filter cylinder (301), the second filter cylinder (302) and the third filter cylinder (303) are all fixedly connected to support rings (8). Several support rings (8) are rotatably connected to the corresponding support grooves (7).

6. The feed primary screening device according to claim 2, characterized in that, The material conveying assembly (5) includes a converging hopper (501), which is fixedly connected inside the first filter cylinder (301). A material conveying frame (502) is fixedly connected to the bottom of the converging hopper (501). A rotating roller (503) is rotatably connected inside the material conveying frame (502). A material conveying belt (504) is provided on the outer surface of the rotating roller (503). One end of the material conveying frame (502) extends into the interior of the screening cylinder (1). A material conveying motor (505) is fixedly connected to the outer side of the material conveying frame (502). The output end of the material conveying motor (505) is fixedly connected to the rotating roller (503).

7. The feed primary screening device according to claim 2, characterized in that, The discharge assembly (6) includes a discharge trough (601), which is located at the bottom of the second filter cylinder (302). The discharge trough (601) passes through the third filter cylinder (303) and the screening cylinder (1) in sequence. The bottom outer surface of the screening cylinder (1) is fixedly connected to the discharge hopper (602) corresponding to the discharge trough (601).

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