Feed surface dust removal device

Abstract

The application discloses a feed surface floating powder removing device and relates to the technical field of feed production.The device comprises a straight cylinder, a blow pipe, a first conical cylinder and a driving device.The inner side wall of the straight cylinder is provided with a flow guide spiral channel, and the cross section of the flow guide spiral channel is rectangular.The blow pipe is arranged on the upper end of the straight cylinder and is in communication with the flow guide spiral channel.The upper side wall of the blow pipe is provided with a feeding port.The first conical cylinder is arranged on the lower side of the straight cylinder.The upper end of the cavity of the first conical cylinder is in communication with the flow guide spiral channel and the cavity of the straight cylinder.The upper end of the first conical cylinder is larger than the lower end.The inner wall of the first conical cylinder is provided with a first soft hair brush layer.The lower end of the first conical cylinder is provided with a first discharging port.The first conical cylinder can rotate around its axis.The axis of the straight cylinder is coincident with the axis of the first conical cylinder.The driving device is arranged on the outer side of the first conical cylinder.The driving device is in rotational driving connection with the first conical cylinder.The device provided by the application has high powder removing efficiency and can avoid damage to feed particles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of feed production. More particularly, the present application relates to a device for removing surface floating powder of feed. BACKGROUND

[0002] In the field of feed production, a granulator is widely used. During the processing, some powder will adhere to the surface of the feed particles. The powder will not affect the quality or quantity of the feed itself, but will have an adverse effect on the transportation, storage or use of the feed. Therefore, producers have high requirements for the cleanliness of the surface of the feed and have a powder removal process. Generally, high-frequency vibration has a good effect on removing the floating powder of the particles, but repeated high-frequency vibration of the feed particles will easily cause the feed particles to be broken.

[0003] Patent (publication number CN115228735B) discloses a device for removing surface floating powder of livestock and poultry feed, which comprises a cylinder body, two opposite ports of the cylinder body, a first cylinder cover and a second cylinder cover embedded in the two opposite ports of the cylinder body to cover the corresponding ports, a negative pressure bag, the negative pressure bag comprises an air bag and a baffle plate arranged in the cylinder body, wherein the outer peripheral wall of the baffle plate completely contacts the inner wall of the cylinder body, and the air bag is arranged between the second cylinder cover and the baffle plate, so that the inner cavity of the air bag can move to shrink or expand when the baffle plate approaches or moves away from the second cylinder cover, and an adsorption and discharge part, the adsorption and discharge part comprises a central shaft and a plurality of penetrating members arranged in a ring around the central shaft, a pipe is installed at the baffle plate and is hard connected with the central shaft, and a specially designed penetrating member is combined to implement diffusion stirring, floating powder adsorption and discharge treatment measures on the feed particles with floating powder on the surface, so as to improve the surface cleanliness of the feed particles. The mechanism is very complex. The floating powder adsorption work on the feed particles is realized by penetrating the feed particles through the penetrating member 72. All the feed particles cannot be contacted once and need to be penetrated repeatedly, so the powder removal efficiency is low. Moreover, the continuous feeding cannot be realized, which also affects the powder removal efficiency. In addition, the feed particles are also extruded during the penetrating process, and the repeated penetration will easily damage the feed particles. SUMMARY

[0004] The purpose of the present application is to provide a device for removing surface floating powder of feed, which has high powder removal efficiency and avoids damage to the feed particles.

[0005] In order to achieve the purposes and other advantages of the present application, a device for removing surface floating powder of feed is provided, which comprises:

[0006] a straight cylinder, the inner side wall of which is provided with a flow guide spiral channel, and the cross section of the flow guide spiral channel is rectangular;

[0007] an air blowing pipe, which is arranged on the upper end of the straight cylinder and communicates with the flow guide spiral channel, and the upper side wall of the air blowing pipe is provided with a feeding port;

[0008] A first frustum is arranged at the lower side of the straight cylinder, the upper end of the first frustum is communicated with the spiral flow guide channel and the straight cylinder cavity, the upper end of the first frustum is larger than the lower end, the inner wall of the first frustum is provided with a first soft brush layer, the lower end of the first frustum is arranged as a first discharge port, the first frustum can rotate around its axis, and the axis of the straight cylinder is coincident with the axis of the first frustum.

[0009] A driving device is arranged at the outer side of the first frustum, and the driving device is in rotational driving connection with the first frustum.

[0010] Further, the application further comprises:

[0011] A flow guide cone is arranged at the inner lower end of the first frustum, the upper end of the flow guide cone is smaller than the lower end, the lower end of the flow guide cone is aligned with the lower end of the first frustum and is provided with a gap to form the first discharge port.

[0012] Further, the application further comprises:

[0013] A second frustum is arranged at the lower end of the first frustum, the upper end of the second frustum is larger than the lower end, and the lower end of the second frustum is arranged as a second discharge port.

[0014] The top end of the flow guide cone is provided with a through hole, and the flow guide cone is provided with a fan inside.

[0015] Further, the upper end of the flow guide cone is further provided with a flow guide pipe communicated with the through hole.

[0016] Further, the outer side wall of the spiral flow guide channel is provided with a second soft brush layer.

[0017] Further, the upper side of the air blowing pipe is provided with an air deflector in front of the feeding port along the air inlet direction, and the air deflector is arranged to be inclined along the wind direction.

[0018] Further, the driving device comprises a motor, and the output end of the motor is provided with a driving bevel gear.

[0019] The transmission gear set comprises a driven bevel gear and a driving gear coaxially arranged.

[0020] The outer side of the first frustum is provided with a tooth ring.

[0021] The driving bevel gear is in meshing connection with the driven bevel gear, and the driving gear is in meshing connection with the tooth ring.

[0022] Further, the inner wall of the first frustum is provided with a plurality of convex strips arranged in an annular array and along the generatrix direction, and the convex strips are located between the inner wall of the first frustum and the first soft brush layer.

[0023] The application at least has the following beneficial effects:

[0024] The feed surface floating powder removal device provided by the application sets a rotating first conical cylinder at the lower end of a flow guide spiral channel, and sets a first soft brush layer on the inner wall of the first conical cylinder, so that the dust between feed particles, the floating powder adhered to the surface of the feed particles with relatively weak adhesion, and the floating powder adhered to the surface of the feed particles with relatively strong adhesion can be removed. During the whole process, the air blowing pipe continuously inputs airflow and feed particles to be separated, and the dust between feed particles and the floating powder adhered to the surface of the feed particles with relatively weak adhesion are separated in the flow guide spiral channel, and then the first conical cylinder rotates, so that, firstly, the feed particles settled from the flow guide spiral channel are evenly distributed to the first soft brush layer, so as to avoid the local concentration of the feed particles and affect the powder removal efficiency, and also avoid the mutual extrusion and damage of the feed particles; secondly, when the feed particles sink along the first soft brush layer, the first soft brush layer can clean the floating powder on the surface of the feed particles and also drive the feed particles to rotate, so as to generate centrifugal force and make the feed particles adhere to the first soft brush layer; thirdly, the sliding distance of the feed particles on the first soft brush layer is also prolonged, which is beneficial to powder removal. The device can continuously work and improve the powder removal efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a structural schematic diagram of a feed surface floating powder removal device according to an embodiment of the application.

[0026] Figure 2 FIG. 2 is a sectional view taken along B-B direction in FIG. 1. Figure 1

[0027] In the drawings of the embodiments of the application, 1 is a straight cylinder, 11 is a flow guide spiral channel, 111 is a second soft brush layer, 2 is an air blowing pipe, 21 is a feeding port, 22 is an air guide plate, 3 is a first conical cylinder, 31 is a first soft brush layer, 32 is a first discharging port, 33 is a gear ring, 34 is a convex strip, 4 is a driving device, 41 is a motor, 42 is a driving bevel gear, 43 is a driven bevel gear, 44 is a driving gear, 5 is a flow guide cone, 51 is a through hole, 52 is a fan, 53 is a flow guide pipe, 6 is a second conical cylinder, and 61 is a second discharging port. DETAILED DESCRIPTION

[0028] The application will be further described in detail below with reference to the drawings, so that those skilled in the art can implement the application according to the description.

[0029] ​It should be noted that in the description of the present application, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] As Figure 1 shown, the present application provides a feed surface powder removal device, comprising:

[0031] A straight cylinder 1 is provided with a flow guide spiral channel 11 inside the side wall for guiding the feed particles to be removed powder, and the cross section of the flow guide spiral channel 11 is rectangular.

[0032] A blowpipe 2 is provided on the upper end of the straight cylinder 1 and communicates with the flow guide spiral channel 11, the blowpipe 2 inputs air to the flow guide spiral channel 11, and the upper side wall of the blowpipe 2 is provided with a feed inlet 21 for inputting feed particles to be removed powder.

[0033] A first conical cylinder 3 is provided on the lower side of the straight cylinder 1, the upper end of the cavity of the first conical cylinder 3 communicates with the flow guide spiral channel 11 and the cavity of the straight cylinder 1, for receiving the feed particles to be removed powder flowing from the flow guide spiral channel 11, and simultaneously discharging the separated powder through the cavity of the straight cylinder 1, the upper end of the first conical cylinder 3 is larger than the lower end, the inner wall of the first conical cylinder 3 is provided with a first soft hair brush layer 31, the first soft hair brush layer 31 is provided with soft hair brushes for removing the powder on the surface of the feed particles to be removed powder, and also protecting the feed particles, the lower end of the first conical cylinder 3 is provided with a first discharge port 32 for outputting the feed particles, the first conical cylinder 3 can rotate around its axis, the axis of the straight cylinder 1 coincides with the axis of the first conical cylinder 3, the first conical cylinder 3 rotates, one, the feed particles settled from the flow guide spiral channel 11 can be evenly distributed to the first soft hair brush layer 31, avoiding the local concentration of the feed particles affecting the powder removal efficiency, and also avoiding the mutual extrusion and damage of the feed particles; two, when the feed particles sink along the first soft hair brush layer 31, the first soft hair brush layer 31 can also drive the feed particles to rotate while sweeping the powder on the surface of the feed particles, generating centrifugal force to make the feed particles adhere to the first soft hair brush layer 31; three, the sliding distance of the feed particles on the first soft hair brush layer 31 is also prolonged, which is beneficial to powder removal and improves the powder removal efficiency.

[0034] A driving device 4 is provided on the outer side of the first conical cylinder 3, and the driving device 4 is in driving connection with the first conical cylinder 3.

[0035] The working principle of the feed surface powder removal device provided by the present application is as follows:

[0036] The flowing air and the feed particles to be dedusted (including the dust between the feed particles and the floating dust adhered to the surface of the feed particles) enter the straight cylinder 1 from the blowing pipe 2, rotate downward along the guide spiral channel 11, the air flow rotates under the guidance of the guide spiral channel 11, forming a downward rotating flow, the feed particles rotate to the outer side wall of the guide spiral channel 11, enter the first conical cylinder 3 downward, the floating dust between the feed particles rotates to the inner side wall of the guide spiral channel 11, the floating dust adhered to the surface of the feed particles which is relatively weak will also be separated from the feed particles due to the rotating centrifugal effect of the feed particles, rotate to the inner side wall of the guide spiral channel 11, and the floating dust rotating to the inner side wall of the guide spiral channel 11 flows out of the guide spiral channel 11 downward, and is discharged from the cavity of the straight cylinder 1 under the driving of the wind pressure. The feed particles and the floating dust adhered to the surface of the feed particles which is relatively strong rotate under the combined action of the downward rotating flow, the gravity of the feed particles and the downward inertia and the centrifugal force generated by the rotation of the first conical cylinder 3, and generate a rotating motion close to the first soft brush layer 31. In the process of rotating motion, the floating dust adhered to the surface of the feed particles which is relatively strong is separated from the feed particles under the action of the soft brush of the first soft brush layer 3 and joins the rotating flow, and the feed particles continuously sink along the first soft brush layer 31, and finally sink to the first discharge port 32 and leave the device from the first discharge port 32. Because the first conical cylinder 3 is arranged with a large upper end and a small lower end, most of the rotating flow will be discharged from the cavity of the straight cylinder 1, and a small part will be discharged from the first discharge port 32. In actual use, a feed particle collecting device can be placed below the first discharge port 32 to store the feed particles which have been dedusted, and a fan can be placed beside the feed particle collecting device to blow away the rotating flow discharged from the first discharge port 32, so as to avoid that the separated floating dust falls and adheres to the feed particles.

[0037] In summary, the feed surface floating dust removal device provided by the present application can remove the dust between the feed particles, the floating dust adhered to the surface of the feed particles which is relatively weak and the floating dust adhered to the surface of the feed particles which is relatively strong by arranging the rotating first conical cylinder 3 at the lower end of the guide spiral channel 11 and arranging the first soft brush layer 31 on the inner wall of the first conical cylinder. In the whole process, the blowing pipe 2 continuously inputs the flowing air and the feed particles to be separated, the dust between the feed particles and the floating dust adhered to the surface of the feed particles which is relatively weak are first separated in the guide spiral channel 11, and then the first conical cylinder 3 rotates, which can make the feed particles sinking from the guide spiral channel 11 spread to the first soft brush layer 31, avoid the local concentration of the feed particles and affect the dedusting efficiency, and also avoid the mutual extrusion and damage of the feed particles; secondly, the first soft brush layer 31 can drive the feed particles to rotate and generate centrifugal force while sweeping the floating dust on the surface of the feed particles, so that the feed particles adhere to the first soft brush layer 31; thirdly, the sliding distance of the feed particles on the first soft brush layer 31 is prolonged, which is conducive to dedusting. The device can work continuously and improve the dedusting efficiency.

[0038] The driving device 4 comprises a motor 41, the output end of which is provided with a driving bevel gear 42;

[0039] The transmission gear set comprises a driven bevel gear 43 and a driving gear 44 coaxially arranged;

[0040] The first conical cylinder 3 is externally provided with a tooth ring 33;

[0041] The driving bevel gear 42 is in meshing connection with the driven bevel gear 43, and the driving gear 44 is in meshing connection with the tooth ring 33.

[0042] When the motor 41 works, the first conical cylinder 3 can be driven to rotate through gear transmission, so that the driving device 4 is in rotational driving connection with the first conical cylinder 3.

[0043] As a preferred solution, it further comprises:

[0044] A flow guide cone 5 is arranged at the lower end inside the first conical cylinder 3, the upper end of the flow guide cone 5 is smaller than the lower end, the lower end of the flow guide cone 5 is aligned with the lower end of the first conical cylinder 3 and is provided with a gap, forming the first discharge port 32 for output of feed particles. Most of the rotational flow from the flow guide spiral channel 11 is guided by the flow guide cone 5 to form an internal rotational flow upward and is discharged from the straight cylinder 1, only a very small part is discharged from the gap between the lower end of the flow guide cone 5 and the lower end of the first conical cylinder 3, so that most of the floating powder separated from the feed particles is discharged from the straight cylinder 1. The axis of the flow guide cone 5 coincides with the axis of the first conical cylinder 3.

[0045] As a preferred solution, it further comprises:

[0046] A second conical cylinder 6 is arranged at the lower end of the first conical cylinder 3 in communication, the axis of the second conical cylinder 6 coincides with the axis of the first conical cylinder 3;

[0047] The upper end of the second conical cylinder 6 is larger than the lower end, and the lower end of the second conical cylinder 6 is arranged as a second discharge port 61 for output of feed particles;

[0048] The top end of the flow guide cone 5 is provided with a through hole 51, and the inside of the flow guide cone 5 is provided with a fan 52. When working, the fan 52 generates upward wind.

[0049] A very small portion of the rotating flow discharged from the gap between the lower end of the guide cone 5 and the lower end of the first truncated cone 3 carries floating powder that has been separated from the feed particles. The second truncated cone 6 is designed with a larger upper end and a smaller lower end. On the one hand, it can guide the rotating flow descending into the second truncated cone 6 to flow back upward under the action of the fan 52, pass through the through hole 51, and finally be discharged from the straight cylinder 1 cavity. On the other hand, the feed particles can fall along the side wall of the second truncated cone 6, avoiding direct impact damage. Furthermore, the upper end of the guide cone 5 is also provided with a guide pipe 53 communicating with the through hole 51, so that the rotating flow flowing back upward from the second truncated cone 6 can better reach the straight cylinder 1 cavity.

[0050] As a preferred embodiment, the outer wall of the guide spiral channel 11 is provided with a second soft brush layer 111, which is provided with soft brushes to remove floating powder from the surface of the feed particles to be de-powdered, while also protecting the feed particles.

[0051] As a preferred embodiment, an air guide plate 22 is provided on the upper side of the air blowing pipe 2 in front of the feed inlet 21 along the air inlet direction. The air guide plate 22 is inclined in the direction of the wind to avoid affecting the feeding of feed pellets.

[0052] As a preferred option, such as Figure 2 As shown, the inner wall of the first frustum-shaped cylinder 3 is provided with multiple protrusions 34 arranged in a circular array and along its generatrix. The protrusions 34 are located between the inner wall of the first frustum-shaped cylinder 3 and the first soft brush layer 31. This causes the feed particles to be lifted up when passing through the protrusions 34, resulting in a sudden change of direction, which helps to separate the floating powder and feed particles.

[0053] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A feed surface powder removal device, characterized in that, include: A straight cylinder (1) has a flow-guiding spiral channel (11) inside its side wall, and the cross-section of the flow-guiding spiral channel (11) is rectangular; A blower pipe (2) is provided at the upper end of the straight cylinder (1) and is connected to the guide spiral channel (11). The upper side wall of the blower pipe (2) is provided with a feed inlet (21). The first truncated cone (3) is disposed on the lower side of the straight cylinder (1). The upper end of the cavity of the first truncated cone (3) is connected to the guide spiral channel (11) and the cavity of the straight cylinder (1). The first truncated cone (3) is set with a larger upper end and a smaller lower end. The inner wall of the first truncated cone (3) is provided with a first soft brush layer (31). The lower end of the first truncated cone (3) is set as a first discharge port (32). The first truncated cone (3) can rotate around its axis. The axis of the straight cylinder (1) coincides with the axis of the first truncated cone (3). A driving device (4) is disposed outside the first frustum cylinder (3), and the driving device (4) is rotatably connected to the first frustum cylinder (3); The inner wall of the first frustum cylinder (3) is provided with a plurality of protruding strips (34) arranged in a circular array and along its generatrix direction. The protruding strips (34) are located between the inner wall of the first frustum cylinder (3) and the first soft brush layer (31).

2. The feed surface powder removal device as described in claim 1, characterized in that, Also includes: A guide cone (5) is set inside the lower end of the first truncated cone (3). The guide cone (5) is set with a smaller upper end and a larger lower end. The lower end of the guide cone (5) is aligned with the lower end of the first truncated cone (3) and has a gap, forming the first discharge port (32).

3. The feed surface powder removal device as described in claim 2, characterized in that, Also includes: The second frustum (6) is connected to the lower end of the first frustum (3). The upper end of the second frustum (6) is larger than the lower end. The lower end of the second frustum (6) is set as the second discharge port (61). The top of the guide cone (5) is provided with a through hole (51), and a fan (52) is provided inside the guide cone (5).

4. The feed surface powder removal device as described in claim 1, characterized in that, The upper end of the guide cone (5) is also provided with a guide pipe (53) that communicates with the through hole (51).

5. The feed surface powder removal device as described in claim 1, characterized in that, The outer wall of the flow-guiding spiral channel (11) is provided with a second soft brush layer (111).

6. The feed surface powder removal device as described in claim 1, characterized in that, The air blower (2) has an air guide plate (22) on the upper side of the air inlet (21) along the air inlet direction. The air guide plate (22) is inclined in the direction of the wind.

7. The feed surface powder removal device as described in claim 1, characterized in that, The drive device (4) includes: a motor (41) with a drive bevel gear (42) at its output end. The transmission gear set includes a coaxial driven bevel gear (43) and a driving gear (44). The first frustum tube (3) is provided with a toothed ring (33) on its outside; The driving bevel gear (42) meshes with the driven bevel gear (43), and the driving gear (44) meshes with the gear ring (33).

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