Feed particle screening machine
By introducing the design of slow flow bars and collecting troughs in the feed pellet screening machine, the problems of feed pellet breakage and dust generation during the screening process are solved, achieving a more efficient screening effect and a higher pass rate.
Patent Information
- Application Number
- CN202422679316.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing feed pellet screening machines are prone to problems such as pellet breakage, incomplete screening and dust generation during the screening process.
A feed pellet screening machine was designed, which included a feed hopper, a feed shell, a screen box, a screen frame, a perforated screen plate and a slow-flow strip. The slow-flow strip was used to extend the travel time of the feed on the screen plate, and the collecting trough was used to seal the lower space of the screening to prevent dust.
It effectively reduces the breakage of feed particles, ensures the thoroughness of screening, prevents dust during the screening process, and improves screening efficiency and product qualification rate.
Smart Images
Figure CN223312444U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to feed production and processing, and particularly relates to a feed particle screening machine. Background Art
[0002] Feed is a general term for food for animals raised by humans. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten varieties of feed raw materials, such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, feed additives, etc. Feed is usually made by crushing and mixing various raw materials, and then granulating them through a pelletizer to form qualified materials. However, after granulation, a screening machine is usually required to screen them, and feed pellets with suitable and qualified particle sizes are selected for packaging before they can be sold. However, the relevant screening machines have the following disadvantages in actual use:
[0003] First, feed pellets are pelletized by a pelletizer. However, after pelleting and during transportation, the particle size is not completely uniform, so screening is required. During screening, when the feed is introduced onto the sieve plate in the screening machine, the falling process may cause the feed pellets to be broken into smaller particles again, which will greatly reduce the qualified rate.
[0004] Secondly, conventional screening methods are nothing more than natural falling or vibration screening (rotary vibration screens are usually not suitable for feed screening). In this type of screening method, feed particles pass through the screen at a high speed and cannot be effectively screened completely. If the amount screened at one time is too large, it is easy for small particles of feed to pass through the screen plate, resulting in incomplete screening and requiring multiple reciprocating screenings, which is time-consuming and labor-intensive.
[0005] Finally, the screening process may generate dust, affecting the surrounding environment. Utility Model Content
[0006] The purpose of the utility model is to provide a feed pellet screening machine. By arranging a distribution hopper, a distribution shell, a screen box, a screen frame, a punched screen plate, a slow-flow strip, a collecting trough, and a cover plate, the utility model solves the problems that the feed may be broken when it is fed from a high place for screening, the speed of the feed passing through the screen plate is too fast during screening, resulting in incomplete screening, and the dust that may be generated during the feed screening process.
[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0008] The utility model is a feed particle screening machine, comprising a screen box, a collecting trough, a distribution hopper, a distribution shell, a screen frame and a slow-flow cloth, wherein a collecting trough is arranged below the screen box, a cover plate is arranged on the upper end cover of the screen box, a distribution hopper is arranged above the cover plate, and a distribution shell is slidably arranged in the lower inner cavity of the distribution hopper, an inclined screen frame is fixed on the inner wall of the screen box, a punched screen plate is fixed in the screen frame, and evenly distributed slow-flow strips are fixed on the punched screen plate, and a slow-flow cloth is also fixed in the screen box below the screen frame; the lower part of the distribution shell penetrates the cover plate and extends to a higher point on the upper surface of the screen frame.
[0009] Furthermore, legs are symmetrically fixed on both outer side walls of the screen box, the cross section of the collecting trough is consistent with the cross section of the screen box, and the bottom surface of the collecting trough is flush with the bottom surface of the legs.
[0010] Furthermore, a discharge port is provided through the end of the screen box on the lower end of the perforated screen plate, and a discharge hopper is fixed to the outer end surface of the screen box outside the discharge port.
[0011] Furthermore, a slag discharge port is provided at one end of the slow flow cloth close to the discharge port, and the slag discharge port is also located at the lower end of the slow flow cloth, and the slow flow cloth is parallel to the screen frame.
[0012] Furthermore, the cover plate is threaded with bolts distributed at equal distances, and the lower parts of the bolts are screwed into the two long side arms on the top of the screen box.
[0013] Furthermore, ear plates 1 are fixed on both outer walls of the lower part of the material distribution hopper, and ear plates 2 are fixed on both outer walls of the material distribution shell, and a screw is threadedly connected in each ear plate 1, and the bottom end of the screw passes through the cover plate and is rotatably connected to the upper end of the ear plate 2 below it; symmetrically distributed reinforcing ribs are also fixed on both outer walls of the material distribution hopper, and the bottom ends of the reinforcing ribs are fixed on the cover plate.
[0014] Furthermore, limiting grooves are provided on both inner walls of the lower part of the cloth hopper, and symmetrically distributed limiting strips are fixed on the outer wall of the cloth shell outside the second ear plate, and the limiting strips are slidably arranged in the limiting grooves adjacent thereto; a cloth notch is provided at the bottom end of the cloth shell.
[0015] The utility model has the following beneficial effects:
[0016] The utility model solves the problem that feed may be broken when it is fed into and screened from a high place by arranging a distribution hopper, a distribution shell and a screen box; a certain amount of feed to be screened is stored in the distribution hopper, and the screw is rotated to control its downward movement, thereby moving the distribution shell downward until the distribution notch at the bottom end of the distribution shell is as close to the punching screen plate as possible (the premise is to ensure smooth discharge of the material); at this time, the gap between the distribution notch and the punching screen plate is small, and the falling stroke of the feed falling onto the punching screen plate is short, thereby minimizing the problem of the feed being impacted and broken when it falls, and ensuring a high pass rate as much as possible.
[0017] The utility model solves the problem of incomplete screening caused by too fast speed of feed passing through the screen plate during feed screening by arranging a screen frame, a punched screen plate and a slow-flow strip. After the feed enters the punched screen plate in the screen frame, it gradually slides down along the upper surface of the punched screen plate (it can be selected whether to add a vibration source for vibration screening according to actual needs). After sliding down a certain distance, it will be temporarily blocked by the slow-flow strip until a large amount of feed impacts the feed on the slow-flow strip, and then it will continue to slide down until it is blocked by the next slow-flow strip again. This is repeated, which effectively prolongs the travel time of the feed on the punched screen plate and reduces the travel speed, so that the feed can be fully screened.
[0018] The utility model solves the problem of dust that may be generated during the feed screening process by arranging a screen box, a collecting trough and a cover plate. During the screening operation, the collecting trough seals the lower part of the screen box to collect the small particles of feed screened out and prevents them from leaking out. The upper part of the screen box is sealed by the cover plate, and dust will not be generated during the screening process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.
[0020] Figure 1 It is a three-dimensional diagram of a feed pellet screening machine;
[0021] Figure 2 is a cross-sectional view of the screen box;
[0022] Figure 3 This is the connection diagram of the cover plate and the fabric hopper;
[0023] Figure 4 It is the structural diagram of the collection tank;
[0024] Figure 5 This is the connection diagram between the fabric hopper and the fabric shell;
[0025] Figure 6 This is the connection diagram of the fabric hopper and the fabric shell after the cutaway view;
[0026] Figure 7 It is a cross-sectional view of the fabric hopper;
[0027] Figure 8 A cross-sectional view of the fabric shell.
[0028] Reference numerals:
[0029] 1. Screen box; 101. Support legs; 102. Discharge port; 103. Discharge hopper; 2. Collecting trough; 3. Cover plate; 301. Bolt; 4. Distribution hopper; 401. Reinforcement rib plate; 402. Ear plate 1; 403. Screw; 404. Limiting groove; 5. Distribution shell; 501. Ear plate 2; 502. Limiting strip; 503. Distribution slot; 6. Screen frame; 601. Perforated screen plate; 602. Slow-flow strip; 7. Slow-flow cloth; 701. Slag discharge port. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0031] See also Figure 1-8 As shown, the utility model is a feed pellet screening machine, comprising a screen box 1, a collecting trough 2, a distribution hopper 4, a distribution shell 5, a screen frame 6 and a slow-flow cloth 7. The collecting trough 2 is provided below the screen box 1, the upper end cover of the screen box 1 is provided with a cover plate 3, a distribution hopper 4 is provided above the cover plate 3, and a distribution shell 5 is slidably provided in the lower inner cavity of the distribution hopper 4, an inclined screen frame 6 is fixed on the inner wall of the screen box 1, and a punched screen plate 601 is fixed in the screen frame 6, and evenly distributed slow-flow strips 602 are fixed on the punched screen plate 601, and a slow-flow cloth 7 is also fixed in the screen box 1 below the screen frame 6; the lower part of the distribution shell 5 passes through the cover plate 3 and extends to the higher part of the upper surface of the screen frame 6;
[0032] The screen box 1 serves as the main screening place, with a screen frame 6 arranged inside it, and a perforated screen plate 601 fixed inside the screen frame 6 for screening the feed passing through. The upper end of the screen box 1 is closed by a cover plate 3, and the cloth hopper 4 is used for cloth. The feed enters the cloth shell 5 through the cloth hopper 4, and then enters the top of the screen frame 6 through the cloth shell 5, contacts the perforated screen plate 601, and is screened by the perforated screen plate 601. The feed gradually slides down along the upper surface of the perforated screen plate 601. After sliding down for a distance, it will be temporarily blocked by the slow flow bar 602 until a large amount of feed impacts the feed on the slow flow bar 602, and then it will continue to slide down until it is blocked by the next slow flow bar 602 again, and this process is repeated until it is completely screened and discharged; the small particles of feed that pass through the perforated screen plate 601 will fall on the slow flow cloth 7 and slowly fall along the slow flow cloth 7, instead of directly falling into the collecting trough 2, to avoid secondary damage and breakage.
[0033] Support legs 101 are symmetrically fixed on both outer side walls of the screen box 1. The cross section of the collecting trough 2 is consistent with the cross section of the screen box 1, and the bottom surface of the collecting trough 2 is flush with the bottom surface of the support legs 101.
[0034] The screen box 1 is supported by the legs 101 . The collecting trough 2 is placed under the screen box 1 so as to be exactly in line with the height of the legs 101 , thereby sealing the lower space of the screen box 1 . The collecting trough 2 is used to collect small particle feed that passes through the perforated screen plate 601 .
[0035] A discharge port 102 is provided through the end of the screen box 1 at the lower end of the perforated screen plate 601, and a discharge hopper 103 is fixed to the outer end surface of the screen box 1 outside the discharge port 102; the feed screened on the perforated screen plate 601 is finally discharged from the discharge port 102 and transported outward along the discharge hopper 103.
[0036] A slag discharge port 701 is provided at one end of the slow flow cloth 7 close to the discharge port 102, and the slag discharge port 701 is also located at the lower end of the slow flow cloth 7, and the slow flow cloth 7 is parallel to the screen frame 6;
[0037] The small particles of feed collected on the slow-flow cloth 7 eventually slide down along its surface and fall into the collecting trough 2 from the slag discharge port 701 .
[0038] The cover plate 3 is screwed with equidistantly distributed bolts 301 , and the lower parts of the bolts 301 are screwed into the two long side arms on the top of the screen box 1 ; the cover plate 3 is fixed to the top of the screen box 1 by the bolts 301 .
[0039] Ear plates 1 402 are fixed to both outer walls of the lower portion of the distribution hopper 4, and ear plates 2 501 are fixed to both outer walls of the distribution shell 5. A screw 403 is screwed into each ear plate 1 402, and the bottom end of the screw 403 passes through the cover plate 3 and is rotatably connected to the upper end of the ear plate 2 501 below it. Symmetrically distributed reinforcing ribs 401 are also fixed to both outer walls of the distribution hopper 4, and the bottom ends of the reinforcing ribs 401 are fixed to the cover plate 3.
[0040] The reinforcing rib 401 of the distribution hopper 4 is fixed to the cover plate 3 and maintains sufficient structural strength. When adjusting the position of the distribution shell 5, the screw 403 is rotated to make the screw 403 descend in the ear plate 1 402, thereby making the ear plate 2 501 descend, and then driving the distribution shell 5 to descend, so that the distribution shell 5 is as close to the punching screen plate 601 as possible.
[0041] Limiting grooves 404 are provided on both inner walls of the lower portion of the material distribution hopper 4. Symmetrically distributed limiting strips 502 are fixed to the outer wall of the material distribution shell 5 outside the second ear plate 501, and the limiting strips 502 are slidably arranged in the limiting grooves 404 adjacent thereto. A material distribution notch 503 is provided at the bottom end of the material distribution shell 5.
[0042] When the material distribution shell 5 moves downward, the limiting bar 502 slides down in the limiting groove 404 to ensure the stability of the downward movement of the material distribution shell 5 without tilting. The material in the material distribution shell 5 is finally guided from the material distribution groove 503 to the punching screen plate 601.
[0043] The specific working principle of the present invention is as follows: first, the screen box 1 serves as the main screening place, and a screen frame 6 is arranged inside the screen frame 6. A perforated screen plate 601 is fixed inside the screen frame 6 for screening the feed passing through. The cover plate 3 is fixed to the top of the screen box 1 with bolts 301. The screen box 1 is supported by legs 101. The collecting trough 2 is placed under the screen box 1. The position of the cloth shell 5 is then adjusted, and the screw 403 is rotated to make the screw 403 descend in the ear plate 1 402, thereby making the ear plate 2 501 descend, and then driving the cloth shell 5 to descend. During the downward movement of the cloth shell 5, the limit bar 502 slides down in the limit slot 404 to ensure the stability of the downward movement of the cloth shell 5 until the cloth slot 5 at the bottom of the cloth shell 5 is opened. 03 is as close to the perforated screen plate 601 as possible (the premise is to ensure smooth discharge). At this time, the gap between the feeding slot 503 and the perforated screen plate 601 is small, and the feed falling onto the perforated screen plate 601 has a short falling stroke. The feed gradually slides down along the upper surface of the perforated screen plate 601. After sliding down for a distance, it will be temporarily blocked by the slow-flow strip 602 until a large amount of feed hits the feed on the slow-flow strip 602. It will continue to slide down until it is blocked by the next slow-flow strip 602 again. This is repeated until it is discharged from the discharge port 102 along the discharge hopper 103. The small particles of feed that pass through the perforated screen plate 601 will fall on the slow-flow cloth 7, slowly fall along the slow-flow cloth 7, and fall from the slag discharge port 701 into the collecting tank 2.
[0044] The screening process can choose whether to add a vibration source for vibration screening (such as a vibration motor, etc.) according to actual needs. Vibration screening is an existing conventional technology, so the vibration source is omitted in the accompanying drawings.
[0045] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.
Claims
1. A feed pellet screening machine, comprising a screen box (1), a collecting trough (2), a distribution hopper (4), a distribution shell (5), a screen frame (6) and a slow-flow cloth (7), characterized in that: A collecting trough (2) is provided below the screen box (1), a cover plate (3) is provided on the upper end cover of the screen box (1), a distribution hopper (4) is provided above the cover plate (3), and a distribution shell (5) is slidably provided in the lower inner cavity of the distribution hopper (4), an inclined screen frame (6) is fixed on the inner wall of the screen box (1), and a punched screen plate (601) is fixed in the screen frame (6), and evenly distributed slow flow strips (602) are fixed on the punched screen plate (601), and a slow flow cloth (7) is also fixed in the screen box (1) below the screen frame (6); the lower part of the distribution shell (5) penetrates the cover plate (3) and extends to a higher point on the upper surface of the screen frame (6).
2. A feed pellet screening machine according to claim 1, characterized in that: Support legs (101) are symmetrically fixed on both outer side walls of the screen box (1), the cross section of the collecting trough (2) is consistent with the cross section size of the screen box (1), and the bottom surface of the collecting trough (2) is flush with the bottom surface of the support legs (101).
3. A feed pellet screening machine according to claim 1, characterized in that: A discharge port (102) is provided through the end of the screen box (1) at the lower end of the perforated screen plate (601), and a discharge hopper (103) is fixed to the outer end surface of the screen box (1) outside the discharge port (102).
4. A feed pellet screening machine according to claim 3, characterized in that: A slag discharge port (701) is provided at one end of the slow-flow cloth (7) close to the discharge port (102), and the slag discharge port (701) is also located at the lower end of the slow-flow cloth (7), and the slow-flow cloth (7) is parallel to the screen frame (6).
5. A feed pellet screening machine according to claim 1, characterized in that: The cover plate (3) is threaded with bolts (301) distributed at equal intervals, and the lower parts of the bolts (301) are screwed into the two long side arms at the top of the screen box (1).
6. A feed pellet screening machine according to claim 1, characterized in that: Ear plates (402) are fixed on both outer side walls of the lower part of the distribution hopper (4), and ear plates (501) are fixed on both outer side walls of the distribution shell (5), and a screw rod (403) is screwed in each ear plate (402), and the bottom end of the screw rod (403) passes through the cover plate (3) and is rotatably connected to the upper end of the ear plate (501) below it; symmetrically distributed reinforcing ribs (401) are also fixed on both outer side walls of the distribution hopper (4), and the bottom ends of the reinforcing ribs (401) are fixed on the cover plate (3).
7. A feed pellet screening machine according to claim 6, characterized in that: Limiting grooves (404) are provided on both inner walls of the lower portion of the material distribution hopper (4), and symmetrically distributed limiting strips (502) are fixed on the outer wall of the material distribution shell (5) outside the second ear plate (501), and the limiting strips (502) are slidably arranged in the limiting grooves (404) adjacent thereto; a material distribution notch (503) is provided at the bottom end of the material distribution shell (5).