An impurity separation device for pelletizing livestock and poultry granular feed

Abstract

The present invention discloses an impurity separation device for pelletizing livestock and poultry granular feed, which includes a sieve cylinder. The sieve cylinder is placed horizontally, and the shape of the sieve cylinder is set to be conical. A plurality of pushing plates are arranged on the inner wall of the sieve cylinder. The pushing plates are along the axis direction of the sieve cylinder. A hollow shaft is arranged in the middle of the sieve cylinder, and a plurality of air injection pipes are communicated and arranged on the outer wall of the hollow shaft. An air suction pipeline structure is arranged on the outer wall of the sieve cylinder, and the air suction pipeline structure provides negative pressure suction for the inside of the sieve cylinder; by carrying out throwing, turning and air-blowing separation treatment on the granular feed, it is convenient to quickly separate the dust impurities between the granular feeds and the impurities on the surface of the granular feeds from the granular feeds, facilitating thorough and rapid separation treatment of the granular feeds and impurities, improving the impurity separation effect, thereby improving the production quality of the granular feeds. At the same time, since the granular feeds can be continuously and dynamically screened and impurity removed, the processing speed of the granular feeds is effectively improved, and the work efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of feed processing equipment in emerging strategic industries, and particularly relates to an impurity separation device for poultry and livestock pellet feed granulation. Background Art

[0002] As is well known, the feed consumed by poultry and livestock breeding mainly contains substances such as amino acids, vitamins, and high protein, which can provide the necessary nutrients for animal growth. The feeding of feed is generally carried out in the form of pellets to facilitate animal consumption. After pellet feed is processed by granulation, it needs to be sieved to separate substances such as dust and small granular feed in the pellet feed, so as to improve the purity of the feed. The traditional sieving method usually directly sieves the pellet feed, and small particulate substances such as dust fall off through the sieve holes, so as to achieve the purpose of sieving. However, this sieving method is likely to cause small particulate impurities such as dust to adsorb on the surface of the feed pellets, resulting in incomplete separation of impurities, poor impurity separation effect, affecting the production quality of pellet feed, and at the same time, the impurity separation speed is slow and the working efficiency of the equipment is low. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides an impurity separation device for poultry and livestock pellet feed granulation.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An impurity separation device for poultry and livestock pellet feed granulation, including a sieve cylinder, the sieve cylinder is placed horizontally, the shape of the sieve cylinder is set to be conical, a plurality of pushing plates are arranged on the inner wall of the sieve cylinder, the pushing plates are along the axis direction of the sieve cylinder, a hollow shaft is arranged in the middle of the sieve cylinder, and a plurality of air injection pipes are communicated and arranged on the outer wall of the hollow shaft. A suction pipe structure is arranged on the outer wall of the sieve cylinder, and the suction pipe structure provides negative pressure suction for the inside of the sieve cylinder.

[0006] Further, the suction pipe structure is composed of a plurality of arc-shaped sealing plates and a plurality of air suction groove plates, and the arc-shaped sealing plates and the air suction groove plates are staggered in position. The plurality of arc-shaped sealing plates and the plurality of air suction groove plates form a complete ring. The inner wall of the arc-shaped sealing plate shields the filter holes on the sieve cylinder. A negative pressure pipe is communicated and arranged on the side wall of the air suction groove plate, and the opening direction of the negative pressure pipe is downward.

[0007] Further, conical support hoppers are communicated and arranged at both ends of the sieve cylinder, and the conical support hoppers are rotatably connected with the sieve cylinder. An outer box body is arranged outside the sieve cylinder, and the conical support hoppers are fixed on the outer box body. A feed pipe is communicated and arranged on the conical support hopper at the input end of the sieve cylinder, a discharge pipe is communicated and arranged on the conical support hopper at the output end of the sieve cylinder, a connecting seat is fixed on the outer wall of the air suction groove plate, and the connecting seat is fixed on the inner wall of the outer box body.

[0008] Further, the output end direction of the air injection pipe is along the circumferential direction of the hollow shaft. The end of the hollow shaft passes through the conical support hopper at the output end of the sieve cylinder and is rotatably connected. A rotating sleeve is rotatably sleeved on the hollow shaft. The rotating sleeve is inserted into the sieve cylinder. A connecting rod is fixed on the outer wall of the rotating sleeve, and the outer end of the connecting rod is fixed on the inner wall of the sieve cylinder.

[0009] Further, an aggregate trough is arranged at the bottom of the outer box body, and an air guide barrel is arranged on the side wall of the outer box body. The air guide barrel is internally communicated with the aggregate trough, and a filter plate is covered at the communicating position between the air guide barrel and the aggregate trough;

[0010] A right-angle support plate is arranged on the side wall of the conical support hopper at the output end of the sieve cylinder. The right-angle support plate seals the outer end of the hollow shaft and is rotatably connected with the hollow shaft;

[0011] An air pump is fixed on the outer wall of the outer box body. Air guide pipes are arranged at both the input end and the output end of the air pump. The air guide pipe at the input end of the air pump is communicated with the air guide barrel, and the air guide pipe at the output end of the air pump is installed on the right-angle support plate and passes through the right-angle support plate to be communicated with the hollow shaft.

[0012] Further, a collection bin is communicated and arranged at the bottom of the aggregate trough;

[0013] A rotating shaft is arranged in the aggregate trough. One end of the rotating shaft is rotatably installed on the inner side wall of the aggregate trough, and the other end of the rotating shaft passes through the filter plate and is rotatably installed on the inner side wall of the air guide barrel. A plurality of fan blades are arranged on the outer wall of the rotating shaft in the air guide barrel, and a spiral plate is arranged on the outer wall of the rotating shaft in the aggregate trough. The end of the spiral plate is in contact with the outer side wall of the filter plate.

[0014] Further, it further includes a motor. The motor is fixed on the side wall of the conical support hopper at the output end of the sieve cylinder. A first bevel gear is arranged at the output end of the motor. Two second bevel gears are meshed on the first bevel gear. One of the second bevel gears is fixed on the rotating sleeve, and the other second bevel gear is fixed on the hollow shaft.

[0015] Further, it further includes an outer baffle. The outer baffle is buckled on the outside of the motor, the first bevel gear and the second bevel gears, and the outer baffle is fixed on the side wall of the conical support hopper at the output end of the sieve cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By performing throwing, turning and air-blowing separation treatment on the granular feed, it is convenient to quickly separate the dust impurities between the granular feeds and the impurities on the surface of the granular feeds from the granular feeds, which is convenient for thorough and rapid separation treatment of the granular feeds and the impurities, improves the impurity separation effect, thereby improving the production quality of the granular feeds. At the same time, since the granular feeds can be continuously and dynamically screened and impurity-removed, the processing speed of the granular feeds is effectively increased, and the work efficiency is improved. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the outer box body;

[0020] Figure 3 is Figure 2 a schematic enlarged structure diagram of the air suction groove plate;

[0021] Figure 4 is Figure 3 a schematic structural diagram of the sieve cylinder inside the arc-shaped sealing plate;

[0022] Figure 5 is Figure 3 a left-view structural diagram of the material suction pipeline structure;

[0023] Figure 6 is Figure 4 a schematic cross-sectional structure diagram of the sieve cylinder;

[0024] Figure 7 is Figure 1 a schematic enlarged diagram of the internal structure of the outer baffle;

[0025] Reference numerals in the drawings: 1, sieve cylinder; 2, pushing plate; 3, hollow shaft; 4, air jet pipe; 5, arc-shaped sealing plate; 6, air suction groove plate; 7, negative pressure pipe; 8, conical support hopper; 9, outer box body; 10, feed pipe; 11, discharge pipe; 12, connecting seat; 13, rotating sleeve; 14, connecting rod; 15, air guide barrel; 16, filter plate; 17, right-angle support plate; 18, air pump; 19, air guide pipe; 20, collection bin; 21, rotating shaft; 22, fan blade; 23, spiral plate; 24, motor; 25, first bevel gear; 26, second bevel gear; 27, outer baffle. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0029] As Figure 4 and Figure 6 As shown, an impurity separation device for pellet feed production of livestock and poultry according to the present invention includes a sieve cylinder 1. The sieve cylinder 1 is placed horizontally, and the shape of the sieve cylinder 1 is set to be conical. A plurality of pushing plates 2 are arranged on the inner wall of the sieve cylinder 1. The pushing plates 2 are along the axial direction of the sieve cylinder 1. A hollow shaft 3 is arranged in the middle of the sieve cylinder 1. A plurality of air injection pipes 4 are communicated and arranged on the outer wall of the hollow shaft 3. An air suction pipeline structure is arranged on the outer wall of the sieve cylinder 1, and the air suction pipeline structure provides negative pressure suction for the inside of the sieve cylinder 1.

[0030] Specifically, the pellet feed is introduced into the sieve cylinder 1 through the narrow end of the sieve cylinder 1. The sieve cylinder 1 is rotated, and the sieve cylinder 1 drives a plurality of pushing plates 2 inside it to rotate synchronously. The pushing plates 2 can push the pellet feed in the sieve cylinder 1 to move upward. When the pellet feed moves to the upper side of the sieve cylinder 1, it rolls down along the surface of the pushing plate 2 to the bottom of the sieve cylinder 1, so as to toss and turn the pellet feed. At the same time, due to the conical shape of the sieve cylinder 1, the pellet feed in the sieve cylinder 1 moves along the inner wall of the sieve cylinder 1 towards its wide end during the turning process. Air is blown into the sieve cylinder 1 through the hollow shaft 3 and the air injection pipes 4, so that the air flow conducts air-blowing treatment on the pellet feed in the turning state in the sieve cylinder 1, which is convenient for the dust between the pellet feeds to pass through the filter holes on the sieve cylinder 1 and enter the air suction pipeline structure. Due to the tossing and turning movement of the pellet feed, the surface of the pellet feed is exposed, which is convenient for the air flow to blow away the impurities on the surface of the pellet feed by air-blowing, avoiding the mutual shielding between the pellet feeds and resulting in a decline in the impurity separation effect. The air suction pipeline structure can provide negative pressure suction for the inside of the sieve cylinder 1, thereby accelerating the impurity separation effect. The filter holes on the sieve cylinder 1 can perform sieving treatment on the pellet feed. The pellet feed after impurity separation can be discharged through the wide end of the sieve cylinder 1, thus achieving the purpose of impurity separation of the pellet feed.

[0031] Since the sieve cylinder 1 rotates continuously, granular feed can be continuously introduced into the sieve cylinder 1, so as to realize the continuous screening and separation treatment of the granular feed by the equipment, improve the continuity of the granular feed treatment, and thus improve the working efficiency of the equipment.

[0032] It can be seen that by performing throwing, flipping and air-blowing separation treatment on the granular feed, it is convenient to quickly separate the dust impurities between the granular feeds and the impurities on the surface of the granular feed from the granular feed, which is convenient for thorough and rapid separation treatment of the granular feed and impurities, improves the impurity separation effect, thereby improving the production quality of the granular feed. At the same time, since the granular feed can be continuously and dynamically screened and impurity-removed, the treatment speed of the granular feed is effectively improved and the working efficiency is improved.

[0033] As Figure 5 shown, as an optimization of the above embodiment, the structure of the material suction pipeline is composed of a plurality of arc-shaped sealing plates 5 and a plurality of air suction groove plates 6, and the arc-shaped sealing plates 5 and the air suction groove plates 6 are staggered in position. The plurality of arc-shaped sealing plates 5 and the plurality of air suction groove plates 6 form a complete ring. The inner wall of the arc-shaped sealing plate 5 shields the filter holes on the sieve cylinder 1. A negative pressure pipe 7 is communicated with the side wall of the air suction groove plate 6, and the opening direction of the negative pressure pipe 7 is downward.

[0034] Specifically, the inner wall of the arc-shaped sealing plate 5 can shield the filter holes on the sieve cylinder 1. The plurality of arc-shaped sealing plates 5 and the plurality of air suction groove plates 6 are in a static state. When the filter holes on the sieve cylinder 1 move to the position of the air suction groove plate 6, the inside of the sieve cylinder 1 is communicated with the inside of the air suction groove plate 6. The negative pressure pipe 7 can evacuate the air inside the sieve cylinder 1 through the air suction groove plate 6. When some of the air suction groove plates 6 in the middle of the plurality of air suction groove plates 6 are communicated with the inside of the sieve cylinder 1, the remaining air suction groove plates 6 are in an isolated state from the inside of the sieve cylinder 1. Since the sieve cylinder 1 is in a continuous rotation state, the position of the air suction groove plates 6 communicated with the sieve cylinder 1 among the plurality of air suction groove plates 6 is continuously changed, so that the direction of the air entering the air suction groove plates 6 from the inside of the sieve cylinder 1 is continuously changed. At this time, the air flow inside the sieve cylinder 1 is in a frequent commutation state, so as to perform multi-directional air-blowing treatment on the granular impurities in a flying and flipping state inside the sieve cylinder 1, which is convenient for the air flow to comprehensively clean the impurities on the surface of the granular feed. The impurities flow into the air suction groove plates 6 and the negative pressure pipe 7 along with the air flow, thus realizing the rapid separation of the impurities.

[0035] By adopting the structure of the arc-shaped sealing plate 5 and the air suction groove plate 6, it is possible to prevent the impurities discharged from the sieve cylinder 1 from falling onto the surface of the sieve cylinder 1 again and entering the sieve cylinder 1, thereby avoiding the secondary pollution of the granular feed inside the sieve cylinder 1 by the impurities.

[0036] During actual use, the positions of the plurality of air suction groove plates 6 communicated with the sieve cylinder 1 and the plurality of air suction groove plates 6 isolated from the sieve cylinder 1 are staggered, so as to facilitate the uniform commutation of the air flow inside the sieve cylinder 1.

[0037] As Figures 1 to 3 shown, as an optimization of the above embodiment, both ends of the sieve cylinder 1 are communicated with conical support hoppers 8, and the conical support hoppers 8 are rotatably connected to the sieve cylinder 1. An outer box body 9 is arranged outside the sieve cylinder 1, and the conical support hoppers 8 are fixed on the outer box body 9. A feed pipe 10 is communicated with the conical support hopper 8 at the input end of the sieve cylinder 1, and a discharge pipe 11 is communicated with the conical support hopper 8 at the output end of the sieve cylinder 1. A connecting seat 12 is fixed on the outer wall of the air suction groove plate 6, and the connecting seat 12 is fixed on the inner wall of the outer box body 9.

[0038] Specifically, by arranging the outer box body 9, the sieve cylinder 1, the arc-shaped sealing plate 5, the air suction groove plate 6 and the conical support hoppers 8 can be supported. The two conical support hoppers 8 support the sieve cylinder 1. Granular feed can be introduced into the sieve cylinder 1 through the feed pipe 10, and the granular feed in the sieve cylinder 1 can be discharged through the discharge pipe 11.

[0039] As Figure 6 shown, as an optimization of the above embodiment, the output end direction of the air injection pipe 4 is along the circumferential direction of the hollow shaft 3. The end of the hollow shaft 3 passes through the conical support hopper 8 at the output end of the sieve cylinder 1 and is rotatably connected. A rotating sleeve 13 is rotatably sleeved on the hollow shaft 3. The rotating sleeve 13 is inserted into the sieve cylinder 1, and a connecting rod 14 is fixed on the outer wall of the rotating sleeve 13. The outer end of the connecting rod 14 is fixed on the inner wall of the sieve cylinder 1.

[0040] Specifically, rotate the hollow shaft 3 and the rotating sleeve 13, and make the rotation directions of the hollow shaft 3 and the rotating sleeve 13 opposite. The rotating sleeve 13 drives the sieve cylinder 1 to rotate through the connecting rod 14, and the hollow shaft 3 drives the air injection pipe 4 to rotate, so that the sieve cylinder 1 and the air injection pipe 4 rotate synchronously and in opposite directions. The sieve cylinder 1 can drive the granular feed therein to perform a flying and turning motion, and the air injection pipe 4 can perform a rotating air injection motion. Since the opening of the air injection pipe 4 is along the circumferential direction of the hollow shaft 3, the air ejected by the air injection pipe 4 is in a spiral shape and diffuses outward, which is convenient for the air flow to carry the granular impurities to roll and rotate. At this time, the granular feed performs its own rotating motion, thereby improving the contact effect between the surface of the granular feed and the air flow and improving the impurity removal effect.

[0041] As Figures 1 to 2 shown, as an optimization of the above embodiment, an aggregate trough is arranged at the bottom of the outer box body 9, and an air guide barrel 15 is arranged on the side wall of the outer box body 9. The air guide barrel 15 is communicated with the inside of the aggregate trough, and a filter plate 16 is installed at the communication position between the air guide barrel 15 and the aggregate trough;

[0042] A right-angle support plate 17 is arranged on the side wall of the conical support hopper 8 at the output end of the sieve cylinder 1. The right-angle support plate 17 seals the outer end of the hollow shaft 3 and is rotatably connected to the hollow shaft 3;

[0043] An air pump 18 is fixed on the outer wall of the outer box body 9. Air ducts 19 are arranged at both the input end and the output end of the air pump 18. The air duct 19 at the input end of the air pump 18 is communicated with the air guide barrel 15, and the air duct 19 at the output end of the air pump 18 is installed on the right-angle support plate 17 and passes through the right-angle support plate 17 to be communicated with the hollow shaft 3.

[0044] Specifically, the air pump 18 evacuates the air inside the outer box body 9 through the air duct 19 at its input end, the air guide barrel 15 and the aggregate chute, a negative pressure is formed inside the outer box body 9, and the air inside the sieve cylinder 1 is evacuated through the negative pressure pipe 7 and the suction chute plate 6. The impurities carried in the air fall into the aggregate chute, and the filter plate 16 can block the impurities. The air evacuated by the air pump 18 can be discharged into the hollow shaft 3 through the air duct 19 at its output end, and the air inside the hollow shaft 3 can be discharged back into the sieve cylinder 1 through the air jet pipe 4, so that the air forms a circulating flow inside the equipment. At the same time, the air flow can carry the impurities to move to the outside of the sieve cylinder 1.

[0045] As Figure 2 shown, as an optimization of the above embodiment, a collection bin 20 is communicated and arranged at the bottom of the aggregate chute;

[0046] A rotating shaft 21 is arranged inside the aggregate chute. One end of the rotating shaft 21 is rotatably installed on the inner side wall of the aggregate chute, the other end of the rotating shaft 21 passes through the filter plate 16 and is rotatably installed on the inner side wall of the air guide barrel 15. A plurality of fan blades 22 are arranged on the outer wall of the rotating shaft 21 inside the air guide barrel 15, and a spiral plate 23 is arranged on the outer wall of the rotating shaft 21 inside the aggregate chute. The end of the spiral plate 23 is in contact with the outer side wall of the filter plate 16.

[0047] Specifically, the air flow inside the aggregate chute enters the air guide barrel 15 and pushes the fan blades 22 to rotate. The fan blades 22 drive the rotating shaft 21 and the spiral plate 23 to rotate synchronously. The spiral plate 23 can push the impurities inside the aggregate chute towards the direction of the collection bin 20, so as to facilitate the gathering and collection of the impurities in the collection bin 20. At the same time, the end of the spiral plate 23 can scrape and clean the impurities adsorbed on the surface of the filter plate 16, thereby improving the air permeability of the filter plate 16.

[0048] As Figure 7 shown, as an optimization of the above embodiment, it further includes a motor 24. The motor 24 is fixed on the side wall of the conical support hopper 8 at the output end of the sieve cylinder 1. A first bevel gear 25 is arranged at the output end of the motor 24. Two second bevel gears 26 are meshed on the first bevel gear 25. One of the second bevel gears 26 is fixed on the rotating sleeve 13, and the other second bevel gear 26 is fixed on the hollow shaft 3.

[0049] Specifically, the motor 24 drives the two second bevel gears 26 to rotate synchronously through the first bevel gear 25, and the rotation directions of the two second bevel gears 26 are opposite, so as to drive the hollow shaft 3 and the rotating sleeve 13 to rotate synchronously in opposite directions.

[0050] As Figure 1 shown, as a preference of the above embodiment, it further includes an outer baffle 27, which is buckled on the outer sides of the motor 24, the first bevel gear 25 and the second bevel gear 26, and the outer baffle 27 is fixed on the side wall of the conical support hopper 8 at the output end of the sieve cylinder 1.

[0051] Specifically, by providing the outer baffle 27, it can facilitate the shielding and protection of the motor 24, the first bevel gear 25 and the second bevel gear 26 therein, and improve the safety of the equipment operation.

[0052] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An impurity separation device for pelletizing livestock and poultry granular feed, characterized in that, It includes a sieve cylinder (1), the sieve cylinder (1) is placed horizontally, the shape of the sieve cylinder (1) is set to be conical, a plurality of pushing plates (2) are arranged on the inner wall of the sieve cylinder (1), the pushing plates (2) are along the axial direction of the sieve cylinder (1), a hollow shaft (3) is arranged in the middle of the sieve cylinder (1), and a plurality of air spray pipes (4) are communicated and arranged on the outer wall of the hollow shaft (3). An air suction pipe structure is arranged on the outer wall of the sieve cylinder (1), and the air suction pipe structure provides negative pressure suction for the inside of the sieve cylinder (1). The air suction pipe structure is composed of a plurality of arc-shaped sealing plates (5) and a plurality of air suction groove plates (6), and the arc-shaped sealing plates (5) and the air suction groove plates (6) are staggered in position. The plurality of arc-shaped sealing plates (5) and the plurality of air suction groove plates (6) form a complete ring. The inner wall of the arc-shaped sealing plate (5) shields the filter holes on the sieve cylinder (1). A negative pressure pipe (7) is communicated and arranged on the side wall of the air suction groove plate (6), and the opening direction of the negative pressure pipe (7) is downward. Conical support hoppers (8) are communicated and arranged at both ends of the sieve cylinder (1), and the conical support hoppers (8) are rotatably connected to the sieve cylinder (1). An outer box body (9) is arranged outside the sieve cylinder (1), and the conical support hoppers (8) are fixed on the outer box body (9). A feed pipe (10) is communicated and arranged on the conical support hopper (8) at the input end of the sieve cylinder (1), and a discharge pipe (11) is communicated and arranged on the conical support hopper (8) at the output end of the sieve cylinder (1). A connecting seat (12) is fixed on the outer wall of the air suction groove plate (6), and the connecting seat (12) is fixed on the inner wall of the outer box body (9). The output end direction of the air spray pipe (4) is along the circumferential direction of the hollow shaft (3). The end of the hollow shaft (3) passes through the conical support hopper (8) at the output end of the sieve cylinder (1) and is rotatably connected. A rotating sleeve (13) is rotatably sleeved on the hollow shaft (3). The rotating sleeve (13) is inserted into the sieve cylinder (1), and a connecting rod (14) is fixed on the outer wall of the rotating sleeve (13). The outer end of the connecting rod (14) is fixed on the inner wall of the sieve cylinder (1).

2. The impurity separation device for granulating livestock and poultry pellet feed according to claim 1, characterized in that, An aggregate trough is arranged at the bottom of the outer box body (9), and an air guide barrel (15) is arranged on the side wall of the outer box body (9). The air guide barrel (15) is communicated with the inside of the aggregate trough, and a filter plate (16) is covered at the communicating position of the air guide barrel (15) and the aggregate trough. A right-angle support plate (17) is arranged on the side wall of the conical support hopper (8) at the output end of the sieve cylinder (1). The right-angle support plate (17) blocks the outer end of the hollow shaft (3), and the right-angle support plate (17) is rotatably connected to the hollow shaft (3). An air pump (18) is fixed on the outer wall of the outer box body (9). Air guide pipes (19) are arranged at both the input end and the output end of the air pump (18). The air guide pipe (19) at the input end of the air pump (18) is communicated with the air guide barrel (15), and the air guide pipe (19) at the output end of the air pump (18) is installed on the right-angle support plate (17) and passes through the right-angle support plate (17) to be communicated with the hollow shaft (3).

3. An impurity separation device for pelletizing livestock and poultry granular feed as described in claim 2, characterized in that, A collection bin (20) is communicated and arranged at the bottom of the aggregate trough. A rotating shaft (21) is arranged in the aggregate chute. One end of the rotating shaft (21) is rotatably installed on the inner side wall of the aggregate chute, and the other end of the rotating shaft (21) passes through the filter plate (16) and is rotatably installed on the inner side wall of the air guide barrel (15). A plurality of fan blades (22) are arranged on the outer wall of the rotating shaft (21) in the air guide barrel (15), and a spiral plate (23) is arranged on the outer wall of the rotating shaft (21) in the aggregate chute. The end of the spiral plate (23) contacts the outer side wall of the filter plate (16).

4. The impurity separation device for pelletizing livestock and poultry granular feed according to claim 3, characterized in that, It further includes a motor (24). The motor (24) is fixed on the side wall of the conical support hopper (8) at the output end of the sieve barrel (1). A first bevel gear (25) is arranged at the output end of the motor (24). Two second bevel gears (26) are meshed with the first bevel gear (25). One of the second bevel gears (26) is fixed on the rotating sleeve (13), and the other second bevel gear (26) is fixed on the hollow shaft (3).

5. An impurity separation device for pelletizing livestock and poultry granular feed according to claim 4, characterized in that, It further includes an outer baffle (27). The outer baffle (27) is buckled on the outer sides of the motor (24), the first bevel gear (25) and the second bevel gear (26). The outer baffle (27) is fixed on the side wall of the conical support hopper (8) at the output end of the sieve barrel (1).

Images