Powder screening equipment for feed production

Abstract

The utility model discloses powder screening equipment for feed production, which relates to the technical field of feed production and comprises a shell component and a screening component. The shell assembly comprises a screening shell, a plurality of sets of discharging grooves, a feeding pipe and a feeding opening. The screening assembly comprises multiple screening parts and a driving part, multiple screening areas are arranged in the same screening part, the multiple screening parts are concentrically arranged, the inner diameters of the multiple screening parts increase progressively, screening holes are formed in the screening parts, the inner diameters of the screening holes in the different screening parts decrease progressively along with increase of the inner diameters of the screening parts, and the feeding opening communicates with the screening area adjacent to the center of the screening shell; by arranging the multiple sets of screening pieces with the inner diameters increasing progressively and the inner diameters of the screening holes decreasing progressively, feed of different particle sizes is screened, the multiple sets of screening areas are arranged on the screening pieces, when the driving piece drives the screening pieces to rotate, the different screening areas can receive new feed to be screened, and the screened feed is discharged from different discharging grooves; feed of different particle sizes can be sieved and separated, powder in the feed is separated from the feed, and meanwhile the feed can be continuously sieved.

Description

Technical Field

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

[0002] Feed is a food specifically designed to provide nutrition for animals, providing them with energy, protein, and other elements (such as vitamins) to help improve their immunity and growth rate. Therefore, feed plays an important role in agriculture and animal husbandry. Feed production screening equipment is an important piece of equipment widely used in feed production. During the production of pelleted feed, in addition to most qualified feed, there are also feed particles that are too large or too small. At the same time, the presence of debris and powder in the feed affects the quality of the feed.

[0003] Patent CN117102034B discloses a feed production sieving equipment, including a support frame, a housing, a powder suction mechanism, a sorting mechanism, a drive mechanism, and a receiving component. The housing is detachably connected to the support frame. A material discharge port is provided on the outer wall of the housing, and a feed pipe is connected to the outer wall of the housing. The sorting mechanism is rotatably connected to the housing and is used for multiple and continuous sieving of the feed to be sieved to obtain multiple types of feed. The sorting mechanism includes a sieve plate arranged in a vortex pattern within the housing. The sieve plate has a first sieving zone and a second sieving zone. The first sieving zone is used for the first sieving and powdering of the feed to be sieved. The second screening section is used to perform a second screening and sieving of the feed after the first screening and sieving. The dust-collecting mechanism is disposed on the housing, and one end of the dust-collecting mechanism penetrates the housing and is arranged towards the screening plate. The dust-collecting mechanism is used to remove dust from the various types of feed to obtain dust-removed various types of feed. The receiving component is slidably connected to the support and is arranged below the discharge port. The receiving component is used to classify and collect the dust-removed various types of feed. The driving mechanism is disposed on the housing and is connected to the sorting mechanism and the receiving component respectively. The driving mechanism is used to drive the sorting mechanism to rotate continuously and intermittently drive the receiving component to move. This patented technology effectively removes debris and dust from feed, detects and eliminates defective feed particles such as those that are too large or too small, ensuring that the obtained feed particles meet production requirements. It also categorizes and stores the sorted feed, and continuously sieves during the screening process, using suction combined with a sieve plate for dust removal, significantly improving the sieving effect. However, while the spiral sieve plate separates feed of different particle sizes, during the sieving process, qualified feed particles, debris, and powder all fall. Furthermore, both larger and qualified particles exit from the same outlet. During sieving, only after the feed introduced in one batch has been sieved can new feed be introduced. If feed is continuously introduced into the inlet, the qualified feed from the previous screening will mix again with the debris and powder falling later, making sieving difficult. Utility Model Content

[0004] The main purpose of this utility model is to provide a feed production screening equipment to solve the problem that existing feed screening devices are unable to continuously screen large particles, qualified particles, debris and powder during the feed screening process.

[0005] To achieve the above objectives, this utility model provides a feed production sieving device, comprising:

[0006] The housing assembly includes a screening shell and multiple discharge troughs disposed on the screening shell; the screening shell has a screening chamber inside, a feed pipe communicating with the screening chamber is disposed on the screening shell, and a door is disposed on the top of the screening shell; the door has a feed inlet communicating with the feed pipe; the discharge troughs are located in the middle of the screening chamber.

[0007] The screening assembly includes multiple sets of screening components rotatably disposed within a screening chamber and a driving component disposed on a screening shell. Each screening component contains multiple screening zones, and the screening components are concentrically arranged with increasing inner diameters. Each screening component has screening holes, and the inner diameter of the screening holes on different screening components decreases as the inner diameter of the screening component increases. The driving component is connected to a screening screen, and rotates under external force, thereby driving the screening screen to rotate. The feed inlet is connected to a screening zone adjacent to the center of the screening shell.

[0008] As a further improvement of this utility model, the screening shell is a hollow cylinder with one end open, and a through hole is provided at the center of the closed end of the screening shell; a bearing is provided in the through hole; the discharge trough is located on the horizontal side of the through hole.

[0009] As a further improvement of this utility model, the screening component includes a first screening screen, a second screening screen sleeved outside the first screening screen, and a third screening screen sleeved outside the second screening screen; a first screening section is formed between the first screening screen and the through hole, a second screening section is formed between the first screening screen and the second screening screen; a third screening section is formed between the second screening screen and the third screening screen; and a fourth screening section is formed between the third screening screen and the screening shell.

[0010] As a further improvement of this utility model, the first screening screen, the second screening screen, and the third screening screen are respectively provided with dividing screens; the dividing screens divide the interior of the first screening screen, the second screening screen, and the third screening screen into multiple screening areas.

[0011] As a further improvement of this utility model, the plane of one end of the separating screen adjacent to the door is higher than the plane of one end of the adjacent screening shell; the feed inlet is connected to the screening section on the first screening screen, and the feed inlet and the discharge chute are staggered.

[0012] As a further improvement of this utility model, the driving component includes a drive motor and a drive gear connected to the drive motor; a power shaft is provided in the through hole; a driven gear meshing with the drive gear is provided on the power shaft, and the power shaft is connected to the first screening screen, the second screening screen, and the third screening screen respectively.

[0013] The beneficial effects of this utility model are reflected in:

[0014] By setting up multiple sets of screening components with increasing inner diameter and decreasing inner diameter of screening holes, feed of different particle sizes is screened. The screening components are equipped with multiple screening zones. When the drive unit drives the screening components to rotate, different screening zones can accept new feed to be screened. The screened feed is discharged from different discharge troughs, realizing the screening of feed of different particle sizes and separating the powder in the feed from the feed, while continuously screening the feed. Attached Figure Description

[0015] Figure 1 This is a frontal overall structural diagram of a feed production screening device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of the back of a feed production screening device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the screening chamber structure of a feed production screening device according to the present invention;

[0018] Figure 4 This is a schematic diagram of the overall structure of a feed production screening device according to the present invention;

[0019] Figure 5 This is a schematic diagram of the screening component structure of a feed production screening equipment according to the present invention;

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Screening shell; 2. Discharge chute; 3. Screening chamber; 4. Feed pipe; 5. Door body; 6. Screening component; 601. First screening screen; 602. Second screening screen; 603. Third screening screen; 7. Drive component; 701. Drive motor; 702. Drive gear; 8. Screening section; 9. Screening hole; 10. Through hole; 11. Bearing; 12. Hinge; 13. Lock; 14. First screening section; 15. Second screening section; 16. Third screening section; 17. Fourth screening section; 18. Separating screen; 19. Power shaft; 20. Driven gear; 21. Connecting plate; 22. Retaining ring; 23. Discharge pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] In one embodiment, see Figure 1 , 2 3. A feed production screening device according to this utility model includes a shell assembly and a screening assembly.

[0024] The shell assembly includes a screening shell 1, multiple discharge troughs 2 disposed on the screening shell 1, a screening chamber 3 inside the screening shell 1, a feed pipe 4 communicating with the screening chamber 3 on the screening shell 1, a door 5 on the top of the screening shell 1, and a feed inlet communicating with the feed pipe 4 on the door 5; the discharge troughs 2 are located in the middle of the screening chamber 3; the screening assembly includes multiple screening components 6 rotatably disposed in the screening chamber 3, and a drive component 7 disposed on the screening shell 1, multiple screening sections 8 disposed within the same screening component 6, the multiple screening components 6 are concentrically arranged and their inner diameters increase progressively, screening holes 9 are disposed on the screening components 6, the inner diameter of the screening holes 9 on different screening components 6 decreases as the inner diameter of the screening component 6 increases, the drive component 7 is connected to the screening screen, the drive component 7 rotates under the action of external force, thereby driving the screening screen to rotate; the feed inlet is connected to the screening section 8 adjacent to the center of the screening shell 1.

[0025] Further, see Figure 4 The screening shell 1 is a hollow cylinder with one end open. The closed end of the screening shell 1 has a through hole 10 at its center, and a bearing 11 is installed inside the through hole 10. The discharge trough 2 is located on the horizontal side of the through hole 10.

[0026] Preferably, the hollow interior of the screening shell 1 forms a screening cavity 3.

[0027] Preferably, the discharge trough 2 is located to the right of the through hole 10, and the middle part of the discharge trough 2 is on the same horizontal plane as the center of the through hole 10.

[0028] Preferably, the door body 5 and the screening shell 1 are hinged by a hinge 12, and a locking device 13 is provided between the door body 5 and the screening shell 1.

[0029] Further, see Figure 3 , 5 The screening component 6 includes a first screening screen 601, a second screening screen 602 sleeved outside the first screening screen 601, and a third screening screen 603 sleeved outside the second screening screen 602. A first screening section 14 is formed between the first screening screen 601 and the through hole 10, a second screening section 15 is formed between the first screening screen 601 and the second screening screen 602, a third screening section 16 is formed between the second screening screen 602 and the third screening screen 603, and a fourth screening section 17 is formed between the third screening screen 603 and the screening shell 1.

[0030] Preferably, the first screening screen 601, the second screening screen 602, and the third screening screen 603 are all circular ring structures.

[0031] Further, see Figure 3 Each of the first screening tray 601, the second screening tray 602, and the third screening tray 603 is provided with a dividing screen 18, which divides the interior of the first screening tray 601, the second screening tray 602, and the third screening tray 603 into multiple screening sections 8.

[0032] Preferably, the first screening tray 601, the second screening tray 602, and the third screening tray 603 are each provided with four sets of separating screens 18.

[0033] Preferably, the screening holes 9 are located on the first screening screen 601, the second screening screen 602, the third screening screen 603, and the dividing screen 18, respectively, with the number of screening holes 9 on the first screening screen 601, the second screening screen 602, and the third screening screen 603 decreasing sequentially.

[0034] Further, see Figure 1 , 3 The plane of one end of the separating screen 18 adjacent to the door 5 is higher than the plane of one end of the adjacent screening shell 1; the feed inlet is connected to the screening section 8 on the first screening screen 601, and the feed inlet and the discharge chute 2 are staggered.

[0035] Preferably, the feed inlet is connected to the screening section 8 on the opposite side of the discharge trough 2, and the feed inlet is located to the left of the through hole 10.

[0036] In the above configuration, by setting up a first screening screen 601, a second screening screen 602, and a third screening screen 603, with decreasing inner diameters of the screening holes 9 on them, after the feed enters the first screening screen 601 from the feed pipe 4 and the feed inlet, the feed is located to the left of the through hole 10. Driven by the drive component 7, the first screening screen 601, the second screening screen 602, and the third screening screen 603 rotate counterclockwise. As the feed in the first screening screen 601 rotates, its height gradually decreases to the bottom of the screening shell 1. During the rotation of the feed, feed particles of the correct size, feed debris, and powder pass through the screening holes 9 on the first screening screen 601 and enter the second screening screen 602. Larger feed particles remain in the first screening tray 601, while feed debris and powder entering the second screening tray 602 pass through the screening holes 9 on the second screening tray 602 and enter the third screening tray 603. Feed debris remains in the third screening tray 603, and powder enters the fourth screening section 17, thus completing the screening of the feed. As the first screening tray 601, the second screening tray 602, and the third screening tray 603 rotate, the feed in the first screening section 14, the second screening section 15, and the third screening section 16 rotates accordingly and gradually increases in height. When the remaining feed is connected to the discharge trough 2, feed particles of different sizes after screening are discharged from different discharge troughs 2.

[0037] Further, see Figure 5The driving component 7 includes a drive motor 701 and a drive gear 702 connected to the drive motor 701. A power shaft 19 is provided in the through hole 10. A driven gear 20 that meshes with the drive gear 702 is provided on the power shaft 19. The power shaft 19 is connected to the first screening screen 601, the second screening screen 602, and the third screening screen 603 respectively.

[0038] Preferably, one end of the power shaft 19 is inserted into the screening chamber 3, the power shaft 19 is fixedly connected to the inner ring of the bearing 11, and a connecting plate 21 is provided between the power shaft 19 and the first screening screen 601, the second screening screen 602, and the third screening screen 603.

[0039] Preferably, a retaining ring 22 is provided on the power shaft 19, and the retaining ring 22 is located at the closed end of the screening shell 1.

[0040] Preferably, the bottom end of the screening shell 1 is provided with a discharge pipe 23.

[0041] In the above configuration, the drive motor 701 rotates, driving the drive gear 702 to rotate. The drive gear 702 meshes with the driven gear 20, thereby driving the power shaft 19 to rotate. The first screening screen 601, the second screening screen 602, and the third screening screen 603 rotate accordingly, driving the feed to rotate for screening.

[0042] In this embodiment, the feed to be screened enters the screening section 8 on the left side (left side of the through hole 10) of the first screening screen 601 through the feed pipe 4 and the inlet. At this time, there is a gap between the feed to be screened and the bottom of the screening shell 1. As the first screening screen 601 rotates, the height of the feed gradually decreases and it rolls in the first screening screen 601. Larger feed particles remain in the first screening screen 601, while the rest of the feed enters the second screening screen 602 and rolls with it. Feed with the correct particle size remains in the second screening screen 602, while the rest... Feed enters the third screening screen 603. Feed fragments and smaller feed remain in the third screening screen 603, while powder enters the fourth screening section 17 and is discharged from the discharge pipe 23. As the first screening screen 601, the second screening screen 602, and the third screening screen 603 rotate, the feed rotates accordingly, causing its height to decrease and then increase. When the feed rotates to the discharge chute 2, the feed in the screening section 8 opposite to the discharge chute 2 is discharged from the discharge chute 2. Feeds of different particle sizes are discharged from the corresponding discharge chute 2, thus separating the feed.

[0043] During the rotation of the first screening screen 601, the second screening screen 602, and the third screening screen 603, different screening sections 8 within the first screening screen 601 are connected to the feed inlet to receive new feed to be screened, and the above screening process is repeated, thereby enabling continuous screening of feed.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feed production sieving equipment, characterized in that, include: The housing assembly includes a screening shell (1) and multiple discharge troughs (2) disposed on the screening shell (1); the screening shell (1) has a screening chamber (3) inside, and a feed pipe (4) communicating with the screening chamber (3) is provided on the screening shell (1); a door (5) is provided on the screening shell (1); the door (5) has a feed inlet communicating with the feed pipe (4); the discharge troughs (2) are located in the middle of the screening chamber (3); The screening assembly includes multiple screening components (6) rotatably disposed in the screening chamber (3) and a driving component (7) disposed on the screening shell (1). Multiple screening sections (8) are provided in the same screening component (6). The multiple screening components (6) are concentrically arranged and their inner diameters increase. Screening holes (9) are provided on the screening components (6). The inner diameter of the screening holes (9) on different screening components (6) decreases as the inner diameter of the screening component (6) increases. The driving component (7) is connected to the screening screen. The driving component (7) rotates under the action of external force, thereby driving the screening screen to rotate. The feed inlet is connected to the screening section (8) adjacent to the center of the screening shell (1).

2. The feed production screening equipment according to claim 1, characterized in that: The screening shell (1) is a hollow cylinder with one end open. A through hole (10) is provided at the center of the closed end of the screening shell (1). A bearing (11) is provided inside the through hole (10). The discharge trough (2) is located on the horizontal side of the through hole (10).

3. The feed production sieving equipment according to claim 2, characterized in that: The screening component (6) includes a first screening screen (601), a second screening screen (602) sleeved outside the first screening screen (601), and a third screening screen (603) sleeved outside the second screening screen (602); a first screening section (14) is formed between the first screening screen (601) and the through hole (10); a second screening section (15) is formed between the first screening screen (601) and the second screening screen (602); a third screening section (16) is formed between the second screening screen (602) and the third screening screen (603); and a fourth screening section (17) is formed between the third screening screen (603) and the screening shell (1).

4. The feed production screening equipment according to claim 3, characterized in that: The first screening tray (601), the second screening tray (602), and the third screening tray (603) are respectively provided with dividing screens (18); the dividing screens (18) divide the interior of the first screening tray (601), the second screening tray (602), and the third screening tray (603) into multiple screening sections (8).

5. A feed production sieving equipment according to claim 4, characterized in that: The plane of one end of the separating screen (18) adjacent to the door (5) is higher than the plane of one end of the adjacent screening shell (1); the feed inlet is connected to the screening section (8) on the first screening screen (601), and the feed inlet and the discharge chute (2) are staggered.

6. The feed production sieving equipment according to claim 5, characterized in that: The driving component (7) includes a drive motor (701) and a drive gear (702) connected to the drive motor (701); a power shaft (19) is provided in the through hole (10); a driven gear (20) meshing with the drive gear (702) is provided on the power shaft (19); and the power shaft (19) is connected to the first screening screen (601), the second screening screen (602), and the third screening screen (603) respectively.

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