Pet feed drying device

Abstract

The invention belongs to the technical field of feed drying, and discloses a pet feed drying device which comprises a base and a rack, a feed bin is arranged on the rack, a conveying auger is arranged at the bottom of the feed bin, a plurality of discharging pipes are arranged at the bottom of the conveying auger, a drying box and an air blower are arranged on the base, and a plurality of feed conveying pipes are rotationally arranged in the drying box. The side wall of the drying box extends out of the rack to be provided with a mounting plate, a discharging hopper is arranged on the mounting plate, the top end of the conveying pipe penetrates out of the drying box and extends into the discharging hopper, spiral blades are arranged on the inner pipe wall of the conveying pipe, ventilation holes are formed in the pipe wall of the conveying pipe, and an electric heating pipe is arranged in the drying box and located below the conveying pipe. A blowing pipe is arranged below the electric heating pipe, blowing holes are formed in the pipe wall of the upper side of the blowing pipe, an air outlet of the air blower communicates with the blowing pipe, and an exhaust pipe is arranged at the top of the drying box. Feed is dried through hot air when being spirally conveyed in the conveying pipe, so that the granularity of the feed is complete, and the quality of the feed is improved.

Description

Technical Field

[0001] The invention relates to the technical field of feed drying, and in particular to a pet feed drying device. Background Art

[0002] Feed is a general term for food for animals raised by all people. 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, and feed additives.

[0003] When producing feed, multiple raw materials need to be evenly mixed together. Generally, water needs to be added to ensure the adhesion between the raw materials, and then they are processed into granules through a molding machine. At this time, the granular finished product contains a certain amount of water, which is not convenient for long-term storage, so it needs to be dried.

[0004] A Chinese invention patent with publication number CN105432783A discloses an inclined feed dryer, comprising a drying cylinder and a base; the drying cylinder is inclined, and an inlet and outlet are arranged at the upper end of the drying cylinder, which has the dual functions of feeding and discharging; a driving device for driving the drying cylinder to rotate is also arranged at the lower end of the drying cylinder; the drying cylinder is arranged in three layers, including an outer insulation layer, a middle heating layer, and an inner working chamber; the insulation layer is filled with heat-insulating materials, the heating layer is filled with heat-conducting oil, and a heating device is arranged on the heating layer; a spiral blade fixed on the inner wall of the drying cylinder is arranged in the working chamber; by reversing the drying cylinder, the feed can be concentrated at the bottom of the working chamber, and the spiral blade has a stirring effect on the feed at this time, thereby facilitating dehydration, and when the drying cylinder rotates forward, the spiral blade can send the feed out of the working chamber.

[0005] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: the above-mentioned scheme causes the feed to move inside the drying cylinder by rotating the drying cylinder. During the rotation of the cylinder, the feed will fall from the upper part to the lower part. Since the cylinder has a large diameter, the feed will have a large drop difference. In addition, the inner wall of the cylinder is heated by high-temperature heat transfer oil. When the feed is heated and loses water, it falls from a high place to the cylinder wall and impacts, causing the feed particles to break, thereby losing the integrity of the particles and affecting the quality of the finished feed. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a pet food drying device.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a pet feed drying device, comprising a base, a frame is arranged on the base, a silo is arranged on the frame, a feed hopper is arranged on the top of the silo, a horizontally arranged conveying auger is arranged at the discharge port at the bottom of the silo, a plurality of vertical feeding pipes are arranged at intervals along the length direction of the bottom of the conveying auger, the upper end of the feeding pipe is connected with the inner cavity of the conveying auger, a drying box is arranged on the base, a plurality of feeding pipes arranged obliquely upward are rotatably arranged in the drying box, the number of the feeding pipes is consistent with the number of the feeding pipes and corresponds one to one, the bottom end of the feeding pipe is connected with the lower end of the feeding pipe, The side wall of the drying box is extended outward from the frame to be provided with a mounting plate, the mounting plate is provided with a lower hopper, the top ends of the plurality of conveying pipes pass through the drying box and extend outward into the lower hopper, the inner wall of the conveying pipe is provided with spiral blades along its length direction, the wall of the conveying pipe is provided with a plurality of ventilation holes, a plurality of electric heating pipes are provided below the conveying pipe in the drying box, a plurality of blowing pipes are provided below the electric heating pipes, a plurality of blowing holes are provided on the upper wall of the blowing pipe, a blower is also provided on the base, an air outlet of the blower is provided with an air outlet pipe, the air outlet pipe is connected with the plurality of blowing pipes, and an exhaust pipe is also provided on the top of the drying box.

[0008] By adopting the above technical scheme, a silo, a conveying auger, a feeding pipe, a feeding pipe, and a feeding hopper are arranged, so that the feed can be conveyed through the silo, the conveying auger, the feeding pipe, the feeding pipe, and the feeding hopper, and the feeding pipe part is rotated and arranged in the drying box, and then hot air is blown into the drying box through the blower, the air outlet pipe, the blowing pipe, the blowing hole, and the electric heating pipe. When the feeding pipe rotates, the feed is conveyed from bottom to top through the spiral blades, and the hot air enters the pipe through the ventilation holes on the feeding pipe to exchange heat with the feed, evaporates the moisture on the feed and takes it out, and finally the hot air with moisture is discharged from the exhaust pipe, so that the feed is fully in contact with the hot air for heat exchange during the spiral conveying in the feeding pipe, which can effectively ensure that the feed is heated evenly, and no cracks are generated due to thermal stress during drying; the feeding pipe passes through the drying box and is connected to the feeding hopper, so that the feed enters the feeding hopper after cooling outside the drying box for a period of time, further preventing the feed from being broken during the feeding and conveying process, making the feed particle size complete and improving the feed quality.

[0009] Furthermore, a stirring motor is provided on the top of the silo, the output shaft of the stirring motor extends downward into the silo and is connected to a stirring shaft at the end, a stirring frame is provided on the stirring shaft, and the overall contour shape of the stirring frame is the same as the cross-sectional contour shape of the silo.

[0010] By adopting the above technical solution, a stirring motor, a stirring shaft and a stirring frame are provided, and the feed entering the silo is slowly stirred by the stirring frame, which can prevent the feed from sticking together to cause blockage or uneven drying.

[0011] Furthermore, a first support plate with a plate surface perpendicular to the material delivery pipe is provided in the drying box at the bottom end of the material delivery pipe, a plurality of first through holes for the material delivery pipe to pass through are provided on the first support plate, a plurality of first support wheels are rotatably provided on the plate surface of the first support plate at the edges of the first through holes, a first groove is provided in the middle of the first support wheel, a first convex ring is provided on the outer tube wall of the material delivery pipe corresponding to the first groove, and the first groove of the first support wheel is clamped on the first convex ring to form a rolling contact.

[0012] By adopting the above technical solution, a first support plate, a first through hole, a first support wheel, a first groove and a first convex ring are arranged, and the first groove and the first convex ring form rolling contact to provide effective rolling support for the conveying pipe.

[0013] Furthermore, the mounting plate is provided with a second support plate arranged parallel to the first support plate, and the second support plate is provided with a plurality of second through holes for the material conveying pipe to pass through, and a plurality of second support wheels are rotatably arranged on a plate surface of one side of the second support plate at the edge of the second through holes, a second groove is provided in the middle of the second support wheel, a second convex ring is provided on the outer tube wall of the material conveying pipe corresponding to the second groove, and the second groove of the second support wheel is clamped on the second convex ring to form a rolling contact, and a driving wheel is also rotatably arranged on the second support plate on the upper side of the material conveying pipe, a third groove is provided in the middle of the driving wheel, and the third groove of the driving wheel is clamped on the second convex ring to form a rolling contact, and a synchronous wheel arranged coaxially with the driving wheel is also rotatably arranged on the side of the second support plate away from the driving wheel, and a driving motor is provided on the mounting plate located on the side of the second support plate, and a driving wheel is provided on the output shaft of the driving motor, and the adjacent two synchronous wheels and the driving wheel and the adjacent synchronous wheel are connected by a synchronous belt.

[0014] By adopting the above technical solution, a second support plate, a second through hole, a second support wheel, a second groove and a second convex ring are provided, and the second groove and the second convex ring are used to form rolling contact to effectively support the feed pipe. Then, a driving wheel, a synchronous wheel, a driving motor, a driving wheel and a synchronous belt are provided, and the driving motor drives the driving wheel to rotate, thereby driving all synchronous wheels to rotate through the synchronous belt, and then driving all driving wheels to rotate, driving the feed pipe to rotate, and transporting the feed.

[0015] Furthermore, a sleeve whose core overlaps with the core of the feed pipe is provided at the lower end of the feed pipe, the upper side of the sleeve is connected to the lower end of the feed pipe, a sealing plate is provided at one end of the sleeve, and the other end is sleeved on the feed pipe to form a rotational fit with the feed pipe.

[0016] By adopting the above technical solution, a sleeve and a sealing plate are provided, and the sleeve and the material conveying pipe are used to form a rotational fit, so that the discharge pipe and the material conveying pipe can be connected when the material conveying pipe rotates.

[0017] Furthermore, a bellows is provided on the base, the air inlet of the bellows is connected to the exhaust pipe, and the air outlet of the bellows is connected to the air inlet of the blower through the air supply pipe.

[0018] By adopting the above technical solution and setting a bellows, the air coming out of the drying box can be sucked into the blower again to achieve recycling.

[0019] Furthermore, a semiconductor cooling sheet is arranged on the side wall of the bellows, and the bottom of the bellows is generally sloped, with a drainage pipe extending from the bottom of the slope to the outside of the bellows.

[0020] By adopting the above technical solution, a semiconductor refrigeration plate is arranged in the bellows. The hot air coming out of the drying box will be cooled when passing through the semiconductor refrigeration plate, thereby condensing the water vapor brought out, and then the condensed water will be discharged through the drain pipe to ensure that the wind entering the blower is dry wind.

[0021] Furthermore, the plurality of conveying pipes are evenly spaced apart along the length direction of the conveying auger, the arrangement plane of the plurality of electric heating pipes is parallel to the arrangement plane of the plurality of conveying pipes, and the length direction of the blowing pipe is perpendicular to the length direction of the conveying pipe.

[0022] By adopting the above technical scheme, a number of feed pipes are arranged evenly at intervals, which can effectively improve the drying efficiency of the feed; the layout plane of the electric heating pipe is arranged parallel to the layout plane of the feed pipe, which can ensure that the distance from each part of the electric heating pipe to the feed pipe is consistent, thereby ensuring uniform heating in the feed pipe; the length direction of the blowing pipe is arranged perpendicular to the length direction of the feed pipe, which can ensure that the blown air is in full contact with the electric heating pipe, thereby improving the heat exchange efficiency.

[0023] Furthermore, an electromagnetic control valve is provided on the discharge pipe.

[0024] By adopting the above technical solution and arranging an electromagnetic control valve on the discharge pipe, the discharge of each discharge pipe can be controlled separately.

[0025] In summary, the present invention has the following beneficial effects: in the present application, by arranging a feed bin, a conveying auger, a feed discharge pipe, a feed discharge pipe, and a feed hopper, the feed discharge pipe part is rotated and arranged in a drying box, and then hot air is blown into the drying box through a blower, an air outlet pipe, an air blowing pipe, an air blowing hole, and an electric heating pipe. When the feed discharge pipe rotates, the feed is transported from bottom to top through the spiral blades, and the hot air enters the pipe through the ventilation holes on the feed discharge pipe and enters the feed discharge pipe. Heat exchange is carried out to evaporate and take out the moisture on the feed, and finally the hot air with moisture is discharged from the exhaust pipe, so that the feed can fully contact with the hot air for heat exchange when it is spirally conveyed in the conveying pipe, which can effectively ensure that the feed is heated evenly and will not cause cracks due to thermal stress during drying; the conveying pipe passes through the drying box and then connects to the hopper, so that the feed is cooled outside the drying box for a period of time before entering the hopper, which further prevents the feed from being broken during the feeding and conveying process, makes the feed particle size complete, and improves the feed quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a structural schematic diagram of another angle of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the hidden base, frame, and drying box of an embodiment of the present invention; Figure 4 yes Figure 3 A magnified schematic diagram of part A; Figure 5 It is a cross-sectional schematic diagram of the silo, the feeding pipe and the feeding pipe of the embodiment of the present invention; Figure 6 yes Figure 5 An enlarged schematic diagram of part B; Figure 7 It is a schematic structural diagram of the blower and bellows part of an embodiment of the present invention; Figure 8 It is a structural schematic diagram of the bellows part of an embodiment of the present invention; Fig. 9 It is a cross-sectional schematic diagram of a bellows according to an embodiment of the present invention.

[0027] In the figure: 10, base; 11, frame; 20, silo; 21, feed hopper; 22, stirring motor; 23, stirring shaft; 24, stirring frame; 30, conveying auger; 31, feeding pipe; 32, sleeve; 33, sealing plate; 34, electromagnetic control valve; 40, drying box; 41, feeding pipe; 411, spiral blade; 412, ventilation hole; 413, first convex ring; 414, second convex ring; 42, mounting plate; 43, feeding hopper; 44, electric heating pipe; 45, blowing pipe; 451, blowing hole; 46. ​​Exhaust duct; 47. First support plate; 471. First through hole; 472. First support wheel; 473. First groove; 48. Second support plate; 481. Second through hole; 482. Second support wheel; 483. Second groove; 484. Drive wheel; 485. Third groove; 486. Synchronous wheel; 487. Synchronous belt; 50. Blower; 51. Air outlet duct; 60. Drive motor; 61. Driving wheel; 70. Bellows; 71. Air supply duct; 72. Semiconductor refrigeration plate; 73. Drain pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0029] like Figure 1-9 As shown, the embodiment of the present application discloses a pet feed drying device, including a base 10, a frame 11, a silo 20, a conveying auger 30, a feeding pipe 31, a feeding pipe 41, a feeding hopper 43, a drying box 40, an electric heating pipe 44, a blowing pipe 45, a blower 50, an air outlet pipe 51, an exhaust pipe 46, and a bellows 70. After the feed enters the silo 20, it is conveyed out through the conveying auger 30, the feeding pipe 31, the feeding pipe 41, and the feeding hopper 43. During the conveying process, the blower 50 blows air into the drying box 40 through the air outlet pipe 51 and the blowing pipe 45. After being heated by the electric heating pipe 44, the blower 50 enters the feeding pipe 41 and fully contacts the feed conveyed by the spiral therein, takes away the moisture in the feed, and then discharges it through the exhaust pipe 46, thereby drying the feed during the conveying process. Allowing the feed to fully contact and exchange heat with the hot air during spiral conveying in the feed conveying pipe 41 can effectively ensure that the feed is heated evenly, and will not cause cracks due to thermal stress during drying, thereby ensuring the integrity of the feed particle size and improving the feed drying quality.

[0030] Specifically, a frame 11 is provided on the base 10, a silo 20 is provided on the frame 11, and a feed hopper 21 is provided on the top of the silo 20, and the feed hopper 21 is used for feeding. A stirring motor 22 is also provided on the top of the silo 20, and the output shaft of the stirring motor 22 extends downward into the silo 20 and is connected to a stirring shaft 23 at the end, and a stirring frame 24 is provided on the stirring shaft 23, and the overall contour shape of the stirring frame 24 is the same as the cross-sectional contour shape of the silo 20. The stirring motor 22 is a slow motor. After the feed enters the silo 20 from the feeding hopper 21, the stirring motor 22 drives the stirring shaft 23 and the stirring frame 24 to rotate slowly, which can break up the feed in the silo 20 and avoid problems such as feed caking causing blockage and uneven drying. The stirring frame 24 is made into a frame shape with the same cross-sectional contour shape as the silo 20, which can reduce the damage caused by the stirring frame 24 to the feed. An observation window is also provided on the side wall of the silo 20 to facilitate observation of the internal situation of the silo 20.

[0031] A conveying auger 30 is arranged at the discharge port at the bottom of the silo 20. The conveying auger 30 is arranged horizontally as a whole. A plurality of vertical feeding pipes 31 are arranged at intervals along the length direction of the conveying auger 30 at the bottom. The upper end of the feeding pipe 31 is connected to the inner cavity of the conveying auger 30. The feed can be delivered to each feeding pipe 31 through the conveying of the conveying auger 30. An electromagnetic control valve 34 is arranged on each feeding pipe 31. The electromagnetic control valve 34 can control the on-off of the feeding pipe 31 and the feeding speed, so as to facilitate adjustment.

[0032] The drying box 40 is arranged on the base 10, and a plurality of feed pipes 41 arranged obliquely upward are rotatably arranged in the drying box 40, and the top of the feed pipes 41 passes through the drying box 40 and extends outward. The feed pipes 41 are evenly spaced along the length direction of the conveying auger 30, and the number of the feed pipes 41 is consistent with the number of the feed pipes 31 and corresponds to each other. In the specific arrangement, a first support plate 47 whose plate surface is perpendicular to the feed pipe 41 is arranged at the bottom end of the feed pipe 41 in the drying box 40, and a plurality of first through holes 471 for the feed pipe 41 to pass through are arranged on the first support plate 47, and a plurality of first support wheels 472 are rotatably arranged on the plate surface of the first support plate 47 at the edge of the first through hole 471, and a first groove 473 is arranged in the middle of the first support wheel 472, and a first convex ring 413 is arranged on the outer tube wall of the feed pipe 41 corresponding to the first groove 473, and the first groove 473 of the first support wheel 472 is clamped on the first convex ring 413 to form rolling contact, thereby rolling support is provided to the bottom end of the feed pipe 41.

[0033] A mounting plate 42 is provided on the side wall of the drying box 40 extending outward from the frame 11. The mounting plate 42 is provided with a second support plate 48 arranged parallel to the first support plate 47. The second support plate 48 is provided with a plurality of second through holes 481 for the feed pipe 41 to pass through. A plurality of second support wheels 482 are rotatably provided on a side surface of the second support plate 48 at the edge of the second through holes 481. A second groove 483 is provided in the middle of the second support wheel 482. A second convex ring 414 is provided on the outer wall of the feed pipe 41 at a position corresponding to the second groove 483. The second groove 483 of the second support wheel 482 is clamped on the second convex ring 414 to form rolling contact, thereby rolling support is provided for the top end of the feed pipe 41. A driving wheel 484 is also rotatably provided on the second support plate 48 at the upper side of the feed pipe 41. A third groove 485 is provided in the middle of the driving wheel 484. The third groove 485 of the driving wheel 484 is clamped on the second convex ring 414 to form rolling contact. A synchronous wheel 486 coaxially arranged with the driving wheel 484 is also rotatably arranged on the side of the second support plate 48 away from the driving wheel 484, and a driving motor 60 is arranged on the mounting plate 42 on the side of the second support plate 48. A driving wheel 61 is arranged on the output shaft of the driving motor 60, and two adjacent synchronous wheels 486 and a driving wheel 61 and an adjacent synchronous wheel 486 are connected by a synchronous belt 487. In this way, by driving the driving wheel 61 to rotate through the driving motor 60, all the synchronous wheels 486 can be driven to rotate through the synchronous belt 487, thereby driving all the driving wheels 484 to rotate, and then driving the conveying pipe 41 to rotate.

[0034] A sleeve 32 whose core overlaps with the core of the feeding pipe 41 is provided at the lower end of the lower feed pipe 31. The upper side of the sleeve 32 is connected to the lower end of the lower feed pipe 31. A sealing plate 33 is provided at one end of the sleeve 32, and the other end is sleeved on the feeding pipe 41 to form a rotational fit with the feeding pipe 41, so that the lower feed pipe 31 and the feeding pipe 41 can always be connected when the feeding pipe 41 rotates. A spiral blade 411 is provided on the inner wall of the feeding pipe 41 along its length direction. After the feed reaches the bottom end of the feeding pipe 41 from the lower feed pipe 31, the spiral blade 411 is driven to rotate spirally under the rotation of the feeding pipe 41, so that the feed at the bottom end of the feeding pipe 41 is transported to the top end of the feeding pipe 41. A lower hopper 43 is provided on the mounting plate 42 at the top end of the feeding pipe 41, and the top end of the feeding pipe 41 extends into the lower hopper 43, so that the feed transported by the feeding pipe 41 can fall into the collection device through the lower hopper 43.

[0035] A blower 50 and a bellows 70 are also provided on the base 10. The air outlet of the bellows 70 is connected to the air inlet of the blower 50 through an air supply pipe 71. The air outlet of the blower 50 is provided with an air outlet pipe 51. A plurality of blowing pipes 45 are arranged at intervals along the length direction of the air outlet pipe 51. The length direction of the blowing pipe 45 is perpendicular to the length direction of the feeding pipe 41. The blowing pipe 45 extends into the drying box 40. A plurality of blowing holes 451 are provided on the upper side wall of the pipe body of the blowing pipe 45 located in the drying box 40, so that air can be blown into the drying box 40. A plurality of electric heating pipes 44 are provided between the blowing pipe 45 and the feeding pipe 41. The arrangement plane of the plurality of electric heating pipes 44 is parallel to the arrangement plane of the plurality of feeding pipes 41, so that the spacing between the electric heating pipes 44 and the feeding pipe 41 is consistent. A plurality of ventilation holes 412 are provided on the wall of the feed pipe 41. The ventilation holes 412 are arranged in a ring shape along the length direction of the feed pipe 41 to ensure that hot air can be blown in from all angles of the feed pipe 41. The air blown out from the blowing holes 451 of the blowing pipe 45 is heated after passing through the electric heating pipe 44, and then enters the tube cavity of the feed pipe 41 through the ventilation holes 412 on the wall of the feed pipe 41, heating the feed being spirally conveyed, and evaporating the moisture in the feed. An exhaust pipe 46 is also provided on the top of the drying box 40, and the exhaust pipe 46 is connected to the air inlet of the bellows 70. Under the action of the blower 50, the hot air in the drying box 40 can be discharged to achieve a complete cycle of the hot air. A semiconductor cooling sheet 72 is provided on the side wall of the wind box 70, so that the hot air with steam discharged from the drying box 40 will cool down after encountering the semiconductor cooling sheet 72, thereby condensing the water vapor therein, so that the wind entering the blower 50 from the air supply pipe 71 is dry wind, which can effectively ensure the drying effect of the feed. The bottom of the wind box 70 is set in a slope shape as a whole, and a drainage pipe 73 is extended from the bottom end of the slope to the outside of the wind box 70, so that the condensed water can be discharged through the drainage pipe 73.

[0036] The operating principle of a pet feed drying device in this embodiment is as follows: the feed enters the silo 20 from the feed hopper 21, is broken up by the action of the stirring motor 22, the stirring shaft 23 and the stirring frame 24, and then enters the conveying auger 30, is conveyed to each feed pipe 31 by the conveying auger 30, and then reaches the bottom of the feed pipe 41, and is spirally conveyed upward by the spiral blades 411 in the feed pipe 41 under the rotation of the feed pipe 41. The blower 50 sends the outside air to the blowing pipe 45 through the air outlet pipe 51, blows it upward through the blowing hole 451, and is heated to form hot air when passing through the electric heating pipe 44, and continues to go upward through the ventilation hole 412 on the wall of the feeding pipe 41 into the tube cavity of the feeding pipe 41, heating the feed being spirally conveyed, evaporating the moisture in the feed, and taking it away from the ventilation hole 412 on the wall of the feeding pipe 41; under the action of the blower 50, the hot air passing through the feeding pipe 41 reaches the bellows 70 through the exhaust pipe 46, and condenses the water vapor in the feed after contacting the semiconductor cooling sheet 72, and is discharged through the drain pipe 73 at the bottom of the bellows 70; the condensed air is sucked away by the blower 50, and sent to the blowing pipe 45 through the air outlet pipe 51, realizing a complete air cycle. The air at this time is relatively dry, which can effectively improve the drying effect. The moisture of the feed is taken away by the hot air in the process of being spirally conveyed upward, thereby achieving the effect of drying. There is a certain distance between the lower hopper 43 and the drying box 40. After the dried feed is conveyed through the drying box 40, the wall of the feed pipe 41 is in direct contact with the outside air, which can cool the feed in the feed pipe 41. After the feed is dried and cooled, the integrity of the particles can be ensured and the overall hardness can be improved. In this way, after entering the lower hopper 43, the feed falling from the lower hopper 43 also greatly reduces the breakage rate of the feed, thereby further ensuring the drying quality.

[0037] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pet food drying device, comprising a base (10), wherein a frame (11) is arranged on the base (10), wherein: The frame (11) is provided with a silo (20), the top of the silo (20) is provided with a feed hopper (21), the bottom of the silo (20) is provided with a horizontally arranged conveying auger (30) at the discharge port, the bottom of the conveying auger (30) is provided with a plurality of vertical down-feeding pipes (31) arranged at intervals along the length direction thereof, the upper end of the down-feeding pipe (31) is communicated with the inner cavity of the conveying auger (30), the base (10) is provided with a drying box (40), the drying box (40) is provided with a plurality of upwardly obliquely arranged conveying pipes (41) rotatably arranged therein, the number of the conveying pipes (41) is consistent with the number of the down-feeding pipes (31) and corresponds one to one, the bottom end of the conveying pipe (41) is communicated with the lower end of the down-feeding pipe (31), the side wall of the drying box (40) is provided with a mounting plate (42) extending outward from the frame (11), the mounting plate (42) is provided with A lower hopper (43), the top ends of the plurality of feeding pipes (41) pass through the drying box (40) and extend outwardly into the lower hopper (43), the inner wall of the feeding pipe (41) is provided with a spiral blade (411) along the length direction thereof, the wall of the feeding pipe (41) is provided with a plurality of ventilation holes (412), a plurality of electric heating pipes (44) are provided below the feeding pipe (41) in the drying box (40), a plurality of blowing pipes (45) are provided below the electric heating pipes (44), a plurality of blowing holes (451) are provided on the upper wall of the blowing pipes (45), a blower (50) is further provided on the base (10), an air outlet of the blower (50) is provided with an air outlet pipe (51), the air outlet pipe (51) is communicated with the plurality of blowing pipes (45), and an exhaust pipe (46) is further provided on the top of the drying box (40).

2. A pet food drying device according to claim 1, characterized in that: A stirring motor (22) is arranged on the top of the silo (20), the output shaft of the stirring motor (22) extends downward into the silo (20) and is connected to a stirring shaft (23) at the end, a stirring frame (24) is arranged on the stirring shaft (23), and the overall contour shape of the stirring frame (24) is the same as the cross-sectional contour shape of the silo (20).

3. The pet food drying device according to claim 1, characterized in that: A first support plate (47) whose plate surface is perpendicular to the material conveying pipe (41) is arranged in the drying box (40) at the bottom end of the material conveying pipe (41); a plurality of first through holes (471) for the material conveying pipe (41) to pass through are arranged on the first support plate (47); a plurality of first support wheels (472) are rotatably arranged on the plate surface of the first support plate (47) at the edges of the first through holes (471); a first groove (473) is arranged in the middle of the first support wheel (472); a first convex ring (413) is arranged on the outer tube wall of the material conveying pipe (41) at a position corresponding to the first groove (473); the first groove (473) of the first support wheel (472) is clamped on the first convex ring (413) to form rolling contact.

4. A pet food drying device according to claim 3, characterized in that: The mounting plate (42) is provided with a second support plate (48) arranged in parallel with the first support plate (47); the second support plate (48) is provided with a plurality of second through holes (481) for the material conveying pipe (41) to pass through; a plurality of second support wheels (482) are rotatably provided on a side plate surface of the second support plate (48) at the edge of the second through holes (481); a second groove (483) is provided in the middle of the second support wheel (482); a second convex ring (414) is provided on the outer tube wall of the material conveying pipe (41) at a position corresponding to the second groove (483); the second groove (483) of the second support wheel (482) is clamped on the second convex ring (414) to form rolling contact; the second support plate (48) is located at the material conveying pipe (41) and the second support wheel (482) is provided with a plurality of second support wheels (482) at the edge of the second through holes (481); a second groove (483) of the second support wheel (482) is provided at the middle of the second support wheel (482); A driving wheel (484) is also rotatably arranged on the upper side of the tube (41), a third groove (485) is arranged in the middle of the driving wheel (484), and the third groove (485) of the driving wheel (484) is clamped on the second convex ring (414) to form rolling contact. A synchronous wheel (486) arranged coaxially with the driving wheel (484) is also rotatably arranged on the side of the second support plate (48) away from the driving wheel (484). A driving motor (60) is arranged on the mounting plate (42) located on one side of the second support plate (48), and a driving wheel (61) is arranged on the output shaft of the driving motor (60). Two adjacent synchronous wheels (486) and the driving wheel (61) and the adjacent synchronous wheel (486) are connected by a synchronous belt (487).

5. The pet food drying device according to claim 4, characterized in that: The lower end of the feed tube (31) is provided with a sleeve (32) whose core overlaps with the core of the feed tube (41); the upper side of the sleeve (32) is connected with the lower end of the feed tube (31); one end of the sleeve (32) is provided with a sealing plate (33); the other end is sleeved on the feed tube (41) to form a rotational fit with the feed tube (41).

6. The pet food drying device according to claim 1, characterized in that: The base (10) is also provided with a bellows (70), the air inlet of the bellows (70) being connected to the exhaust pipe (46), and the air outlet of the bellows (70) being connected to the air inlet of the blower (50) via the air supply pipe (71).

7. A pet food drying device according to claim 6, characterized in that: A semiconductor cooling sheet (72) is arranged on the side wall of the wind box (70); the bottom of the wind box (70) is generally sloped, and a drainage pipe (73) is arranged at the bottom end of the slope extending outside the wind box (70).

8. The pet food drying device according to claim 1, characterized in that: The plurality of conveying pipes (41) are evenly spaced apart along the length direction of the conveying auger (30); the arrangement plane of the plurality of electric heating pipes (44) is parallel to the arrangement plane of the plurality of conveying pipes (41); and the length direction of the blowing pipe (45) is perpendicular to the length direction of the conveying pipe (41).

9. The pet food drying device according to claim 1, characterized in that: The feed pipe (31) is provided with an electromagnetic control valve (34).

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