Circulating type dust removal device for rice processing

Abstract

The utility model discloses a circulating dust removal device for rice processing. The circulating dust removal device comprises a dust removal shell and a separation mechanism, a feeding pipe is arranged on the top wall of the dust removal shell in a penetrating manner; the separation mechanism comprises a driving shaft, a rotating seat, first separation stirring rods, a bevel gear, a bevel gear ring and second separation stirring rods, the driving shaft is rotationally connected to the top wall of the dust removal shell through a first bearing, the rotating seat is arranged at the upper end of the outer side of the driving shaft, and the symmetrically-distributed first separation stirring rods are rotationally connected to the outer side of the rotating seat through a second bearing; a bevel gear ring is arranged on the inner wall of the dust removal shell, bevel gears are arranged at the ends, away from the center of the dust removal shell, of the first separation stirring rods, the bevel gears are all connected with the bevel gear ring in a meshed mode, and second separation stirring rods are arranged at the lower end of the driving shaft. Dust on the surface of the rice is fully separated from the rice through collision force, and the dust removal effect of the device on the rice is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a circulating dust removal device for rice processing. Background Art

[0002] Rice is a finished product made from paddy rice after processes such as cleaning, husking, milling, and finished product sorting. During the processing of rice, dust needs to be removed by a dust removal device. Some dust removal devices for rice processing include an outer shell, a circulating air pipe is provided between the upper and lower walls of the outer shell, and a blower is connected in series inside the circulating air pipe. When dust is removed from the rice, the air flow inside the device is circulated between the circulating air pipe and the outer shell by the blower. During the process of vertically falling from the inside of the device, the dust in the rice is carried into the circulating air pipe by the circulating air flow. The dust is separated from the circulating air flow by the filter assembly in the circulating air pipe, thereby realizing the circulating dust removal operation of the rice. However, the adsorption force between some dust on the surface of the rice is strong, and this part of the dust impurities cannot be separated from the rice during the free fall of the rice, resulting in some dust still remaining on the surface of the rice after dust removal. The dust removal effect of the rice needs to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a circulating dust removal device for rice processing. During the circulating dust removal process of rice, the device can vertically rotate and horizontally rotate and collide the vertically falling rice through a transmission element, and utilize the collision force to fully separate the dust on the surface of the rice, effectively improving the dust removal effect of the device on rice, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a circulating dust removal device for rice processing, comprising a dust removal shell and a separation mechanism;

[0005] Dust removal shell: a feed pipe is provided through the top wall;

[0006] Separation mechanism: It includes a driving shaft, a rotating seat, a separation stirring rod 1, a bevel gear, a bevel gear ring and a separation stirring rod 2. The driving shaft is rotatably connected to the top wall of the dust removal shell through a bearing 1. The upper end of the outer side of the driving shaft is provided with a rotating seat. The outer side of the rotating seat is rotatably connected to a symmetrically distributed separation stirring rod 1 through a bearing 2. The inner wall of the dust removal shell is provided with a bevel gear ring. The end of the separation stirring rod 1 away from the center of the dust removal shell is provided with a bevel gear, and the bevel gears are meshed with the bevel gear ring. The lower end of the driving shaft is provided with a separation stirring rod 2. During the circulating dust removal process of rice, the device can perform vertical rotation and horizontal rotation collision on the vertically falling rice through the transmission element, and utilize the collision force to fully separate the dust on the surface of the rice from it, effectively improving the dust removal effect of the device on rice.

[0007] Furthermore, it also includes a single chip microcomputer, which is located outside the dust removal shell. The input end of the single chip microcomputer is electrically connected to the external power supply, which is convenient for controlling electrical components.

[0008] Furthermore, the separation mechanism also includes a rotating annular seat, which is rotatably connected to the upper end of the inner wall of the dust removal shell through a large diameter bearing, and the separation stirring rod 1 is rotatably connected to the rotating annular seat through bearing 3. The rotating annular seat wraps the bevel gear and the bevel gear ring to prevent rice and dust from contacting the bevel gear and the bevel gear ring.

[0009] Furthermore, a low-speed motor is provided on the upper side of the dust removal shell, the input end of the low-speed motor is electrically connected to the output end of the single-chip microcomputer, and the output shaft of the low-speed motor is fixedly connected to the upper end of the drive shaft, providing power for the device to rotate and collide with the rice for dust removal.

[0010] Furthermore, a discharge pipe is provided through the conical bottom wall of the dust removal shell, a circulating feed pipe is provided at the right end of the discharge pipe through a screw conveyor, the lower end of the circulating feed pipe passes through the top wall of the dust removal shell, a discharge pipe is provided through the middle of the inner wall of the discharge pipe, the right end of the discharge pipe is connected in series with solenoid valve 1, and the middle part of the discharge pipe is connected in series with solenoid valve 2, solenoid valve 1, solenoid valve 2 and the input end of the screw conveyor are electrically connected to the output end of the single-chip microcomputer, so that the rice in the device is dust-removed and circulated.

[0011] Furthermore, a dust removal pipe is provided through the top wall of the dust removal shell, an annular pipe is provided at the lower end of the dust removal pipe, and evenly distributed air intake pipes are provided through the inner wall of the annular pipe. The upper ends of the air intake pipes all pass through the conical bottom wall of the dust removal shell. An induced draft fan is connected in series to the upper end of the dust removal pipe, and the input end of the induced draft fan is electrically connected to the output end of the single-chip microcomputer. A dust collecting pipe is provided through the middle of the dust removal pipe to perform air circulation dust removal operations on the rice in the device.

[0012] Furthermore, an inclined filter screen is provided in the middle of the dust removal pipe, which is installed in conjunction with the dust collecting pipe. A circular filter screen is provided at the upper end of the inner part of the air inlet pipe to filter and separate rice dust impurities carried in the circulating air flow in the device.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the circulating dust removal device for rice processing has the following advantages:

[0014] When the rice is subjected to a circulating dust removal operation, the driving shaft, the rotating seat, the separating stirring rod 1, the bevel gear, the bevel gear ring, the separating stirring rod 2 and the low-speed motor can perform vertical rotation and horizontal rotation collision on the vertically falling rice, and the collision force is utilized to fully separate the dust on the surface of the rice, thereby effectively improving the dust removal effect of the device on the rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the dust removal pipe of the utility model.

[0018] In the figure: 1 dust removal shell, 2 single chip microcomputer, 3 separation mechanism, 31 drive shaft, 32 rotating seat, 33 separation stirring rod 1, 34 bevel gear, 35 bevel gear ring, 36 rotating annular seat, 37 separation stirring rod 2, 4 low speed motor, 5 feeding pipe, 6 solenoid valve 1, 7 discharge pipe, 8 solenoid valve 2, 9 screw conveyor, 10 circulation feed pipe, 11 dust removal pipe, 12 induced draft fan, 13 dust collecting pipe, 14 annular pipe, 15 air intake pipe, 16 inclined filter. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , this embodiment provides a technical solution: a circulating dust removal device for rice processing, comprising a dust removal shell 1 and a separation mechanism 3;

[0021] Dust removal shell 1: its top wall is penetrated by a feed pipe, and also includes a single-chip microcomputer 2, the single-chip microcomputer 2 is located outside the dust removal shell 1, the input end of the single-chip microcomputer 2 is electrically connected to the external power supply, the conical bottom wall of the dust removal shell 1 is penetrated by a feed pipe 5, the right end of the feed pipe 5 is provided with a circulating feed pipe 10 through a screw conveyor 9, the lower end of the circulating feed pipe 10 passes through the top wall of the dust removal shell 1, and the middle part of the inner wall of the feed pipe 5 is penetrated by a discharge pipe 7, the right end of the feed pipe 5 is connected in series with an electromagnetic valve 1 6, and the middle part of the discharge pipe 7 is connected in series with an electromagnetic valve 2 8, the input ends of the electromagnetic valve 1 6, the electromagnetic valve 2 8 and the screw conveyor 9 are all electrically connected to the output end of the single-chip microcomputer 2, the dust removal shell 1 is penetrated by a dust removal pipe 11, and an annular pipe 14 is provided at the lower end of the dust removal pipe 11. The inner wall of the annular pipe 14 is penetrated by evenly distributed air intake pipes 15. The upper ends of the air intake pipes 15 all pass through the conical bottom wall of the dust removal shell 1. The upper end of the dust removal pipe 11 is connected in series with an induced draft fan 12. The input end of the induced draft fan 12 is electrically connected to the output end of the single-chip microcomputer 2. A dust collecting pipe 13 is penetrated in the middle of the dust removal pipe 11. An inclined filter screen 16 is provided in the middle of the dust removal pipe 11. The inclined filter screen 16 is installed in conjunction with the dust collecting pipe 13. A circular filter screen is provided on the upper end of the inner part of the air intake pipe 15. When the rice is dusted, the lower end of the dust collecting pipe 13 is connected to the external The closed dust box is connected. First, the rice enters the device through the feed pipe. A control valve is connected in series in the middle of the feed pipe. After the rice enters the device, the control valve is closed. Then the single-chip microcomputer 2 starts the induced draft fan 12. The induced draft fan 12 runs through the negative pressure to make the air flow inside the device blow out through the intake pipe 15. The air flow at the bottom of the device moves upward and carries the dust in the rice into the dust removal pipe 11. The dust impurities in the air flow in the dust removal pipe 11 are filtered through the inclined filter 16. The dust impurities pass through the dust collecting pipe 13 along the inclined surface of the inclined filter 16 and enter the external closed dust box. The filtered air flow enters again through the annular pipe 14 and the intake pipe 15 At the bottom of the device, a cyclic pneumatic dust removal operation is performed on the rice, and the circular filter screen is used to prevent the rice at the bottom of the device from entering the air inlet pipe 15. During the rice dust removal process, the single-chip microcomputer 2 starts the solenoid valve 16 and the screw conveyor 9, so that the rice at the bottom of the device is lifted by the screw conveyor 9 through the discharge pipe 5, so that the rice at the bottom of the device is moved to the upper end of the device again through the circulating feed pipe 10. By performing dust removal and circulation transportation on the rice, the dust removal effect of the device on the rice is improved. After the rice dust removal is completed, the single-chip microcomputer 2 closes the solenoid valve 16 and opens the solenoid valve 28 to collect the rice through the discharge pipe 7;

[0022] Separation mechanism 3: It includes a drive shaft 31, a rotating seat 32, a separation stirring rod 1 33, a bevel gear 34, a bevel gear ring 35 and a separation stirring rod 2 37. The drive shaft 31 is rotatably connected to the top wall of the dust removal shell 1 through a bearing 1. The upper end of the outer side of the drive shaft 31 is provided with a rotating seat 32. The outer side of the rotating seat 32 is rotatably connected to a symmetrically distributed separation stirring rod 1 33 through a bearing 2. The inner wall of the dust removal shell 1 is provided with a bevel gear ring 35. The end of the separation stirring rod 1 33 away from the center of the dust removal shell 1 is provided with a bevel gear 34. The bevel gears 34 are all meshed with the bevel gear ring 35. The lower end of the drive shaft 31 is provided with a separation stirring rod 2 37. The separation mechanism 3 also includes a rotating annular seat 3 6. The rotating annular seat 36 is rotatably connected to the upper end of the inner wall of the dust removal shell 1 through a large diameter bearing. The separation stirring rod 33 is rotatably connected to the rotating annular seat 36 through a bearing 3. A low-speed motor 4 is provided on the upper side of the dust removal shell 1. The input end of the low-speed motor 4 is electrically connected to the output end of the single-chip microcomputer 2. The output shaft of the low-speed motor 4 is fixedly connected to the upper end of the drive shaft 31. When the rice is circulating in the device for dust removal, the single-chip microcomputer 2 starts the low-speed motor 4 so that its output shaft drives the drive shaft 31 to rotate, and the drive shaft 31 drives the rotating seat 32 to rotate. During the rotation of the rotating seat 32, the meshing connection between the bevel gear 34 and the bevel gear ring 35 is used to make the separation stirring rod The separation stirring rod 1 33 rotates around its own axis, thereby performing a vertical rotation collision on the rice vertically falling inside the device. The driving shaft 31 drives the separation stirring rod 2 37 to rotate horizontally synchronously, thereby performing a horizontal rotation collision on the rice vertically falling inside the device. By performing horizontal and vertical rotation collisions on the rice vertically falling inside the device, the dust on the surface of the rice is fully separated, thereby improving the dust removal effect of the device in the rice processing process. During the movement of the separation stirring rod 1 33, the rotating annular seat 36 is driven to move synchronously. The bevel gear 34 and the bevel gear ring 35 are located inside the rotating annular seat 36. The upper and lower edges of the rotating annular seat 36 are connected to the dust removal shell 1 through the large diameter bearing. The inner wall is rotatably connected, and the bevel gear 34 and the bevel gear ring 35 are wrapped by rotating the annular seat 36 to prevent rice and dust from contacting the bevel gear 34 and the bevel gear ring 35. The outer sides of the separation stirring rod 1 33 and the separation stirring rod 2 37 are provided with a silicone coating. The silicone coating allows the separation stirring rod 1 33 and the separation stirring rod 2 37 to flexibly collide with the rice to avoid the rice from being broken due to the impact of the collision. During the circulating dust removal process of rice, the device can perform vertical rotation and horizontal rotation collision on the vertically falling rice through the transmission element, and use the collision force to fully separate the dust on the surface of the rice, effectively improving the dust removal effect of the device on rice.

[0023] The working principle of a circulating dust removal device for rice processing provided by the utility model is as follows: when the rice is subjected to dust removal processing, the lower end of the dust collecting pipe 13 is connected to an external closed dust collecting box, the rice is first allowed to enter the device through the feeding pipe, the middle part of the feeding pipe is connected in series with a control valve, the control valve is closed after the rice enters the device, and then the single chip microcomputer 2 starts the induced draft fan 12, the induced draft fan 12 operates through the negative pressure so that the air flow inside the device is blown out through the air inlet pipe 15, the air flow at the bottom of the device moves upward and carries the dust in the rice into the dust removal pipe 11, the dust impurities in the air flow in the dust removal pipe 11 are filtered through the inclined filter screen 16, and the dust impurities are blown away along the inclined filter screen 16. The inclined surface of the filter screen 16 enters the external closed dust collection box through the dust collecting pipe 13, and the filtered air flow enters the bottom of the device through the annular pipe 14 and the air inlet pipe 15 again, thereby performing a cyclic pneumatic dust removal operation on the rice. The circular filter screen prevents the rice at the bottom of the device from entering the air inlet pipe 15. During the rice dust removal process, the single-chip microcomputer 2 starts the solenoid valve 6 and the screw conveyor 9, so that the rice at the bottom of the device is lifted by the screw conveyor 9 through the discharge pipe 5, so that the rice at the bottom of the device is moved to the upper end of the device again through the circulating feed pipe 10. By performing dust removal and circulation transportation on the rice, the dust removal effect of the device on the rice is improved. When the rice is circulating in the device for dust removal, the single chip microcomputer 2 starts the low-speed motor 4 so that its output shaft drives the driving shaft 31 to rotate, and the driving shaft 31 drives the rotating seat 32 to rotate. During the rotation of the rotating seat 32, the meshing connection between the bevel gear 34 and the bevel gear ring 35 causes the separation stirring rod 1 33 to rotate around its own axis, thereby performing a vertical rotation collision on the rice vertically falling inside the device, and the driving shaft 31 drives the separation stirring rod 2 37 to rotate horizontally synchronously, thereby performing a horizontal rotation collision on the rice vertically falling inside the device. By performing horizontal and vertical rotation collision on the rice vertically falling in the device, the dust on the surface of the rice is filled. The separation is carried out separately, thereby improving the dust removal effect of the device in the rice processing process. The separation stirring rod 1 33 drives the rotating annular seat 36 to move synchronously during movement. The rotating annular seat 36 wraps the bevel gear 34 and the bevel gear ring 35 to prevent rice and dust from contacting the bevel gear 34 and the bevel gear ring 35. The outer sides of the separation stirring rod 1 33 and the separation stirring rod 2 37 are both provided with a silicone coating. The silicone coating allows the separation stirring rod 1 33 and the separation stirring rod 2 37 to flexibly collide with the rice to avoid rice breakage due to impact collision. After the rice dust removal is completed, the single chip computer 2 closes the solenoid valve 1 6 and opens the solenoid valve 2 8, and collects the rice through the discharge pipe 7.

[0024] It is worth noting that the single chip microcomputer 2 disclosed in the above embodiment can adopt MSP430, the low-speed motor 4 can adopt D140TYD, the screw conveyor 9 can adopt GX200 type screw feeder, and the induced draft fan 12 can adopt F4-72. The single chip microcomputer 2 controls the operation of the low-speed motor 4, the screw conveyor 9 and the induced draft fan 12 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circulating dust removal device for rice processing, characterized in that: It comprises a dust removal shell (1) and a separation mechanism (3); Dust removal shell (1): a feed pipe is provided through the top wall thereof; The separation mechanism (3) comprises a driving shaft (31), a rotating seat (32), a separation stirring rod (33), a bevel gear (34), a bevel gear ring (35) and a separation stirring rod (37). The driving shaft (31) is rotatably connected to the top wall of the dust removal shell (1) through a bearing (1). The upper end of the outer side of the driving shaft (31) is provided with a rotating seat (32). The outer side of the rotating seat (32) is rotatably connected to a symmetrically distributed separation stirring rod (33) through a bearing (2). The inner wall of the dust removal shell (1) is provided with a bevel gear ring (35). The end of the separation stirring rod (33) away from the center of the dust removal shell (1) is provided with a bevel gear (34). The bevel gear (34) is meshed with the bevel gear ring (35). The lower end of the driving shaft (31) is provided with a separation stirring rod (37).

2. The circulating dust removal device for rice processing according to claim 1, characterized in that: It also includes a single chip microcomputer (2), which is located outside the dust removal shell (1), and an input end of the single chip microcomputer (2) is electrically connected to an external power supply.

3. The circulating dust removal device for rice processing according to claim 1, characterized in that: The separation mechanism (3) further comprises a rotating annular seat (36), which is rotatably connected to the upper end of the inner wall of the dust removal shell (1) via a large-diameter bearing, and the separation stirring rod (33) is rotatably connected to the rotating annular seat (36) via a bearing (3).

4. The circulating dust removal device for rice processing according to claim 2, characterized in that: A low-speed motor (4) is provided on the upper side of the dust removal housing (1); the input end of the low-speed motor (4) is electrically connected to the output end of the single-chip microcomputer (2); and the output shaft of the low-speed motor (4) is fixedly connected to the upper end of the drive shaft (31).

5. The circulating dust removal device for rice processing according to claim 2, characterized in that: The conical bottom wall of the dust removal shell (1) is penetrated by a feed pipe (5), the right end of the feed pipe (5) is provided with a circulating feed pipe (10) through a screw conveyor (9), the lower end of the circulating feed pipe (10) passes through the top wall of the dust removal shell (1), and the middle part of the inner wall of the feed pipe (5) is penetrated by a discharge pipe (7), the right end of the feed pipe (5) is connected in series with a solenoid valve 1 (6), the middle part of the discharge pipe (7) is connected in series with a solenoid valve 2 (8), and the input ends of the solenoid valve 1 (6), the solenoid valve 2 (8) and the screw conveyor (9) are all electrically connected to the output end of the single chip computer (2).

6. The circulating dust removal device for rice processing according to claim 2, characterized in that: The top wall of the dust removal shell (1) is penetrated by a dust removal pipe (11), the lower end of the dust removal pipe (11) is provided with an annular pipe (14), the inner wall of the annular pipe (14) is penetrated by evenly distributed air intake pipes (15), the upper ends of the air intake pipes (15) all pass through the conical bottom wall of the dust removal shell (1), the upper end of the dust removal pipe (11) is connected in series with an induced draft fan (12), the input end of the induced draft fan (12) is electrically connected to the output end of the single-chip computer (2), and a dust collecting pipe (13) is penetrated in the middle of the dust removal pipe (11).

7. The circulating dust removal device for rice processing according to claim 6, characterized in that: The middle part of the dust removal pipe (11) is provided with an inclined filter screen (16), which is installed in conjunction with the dust collecting pipe (13), and the inner upper end of the air inlet pipe (15) is provided with a circular filter screen.

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