Recombinant rice drying and screening processing equipment

Abstract

The invention belongs to the technical field of grain processing, and relates to recombined rice drying and screening processing equipment. The drying device comprises a drying shell, and a feeding barrel and a discharging barrel are arranged on the drying shell. When the device is used, prepared recombined rice is fed into the roller through the feeding cylinder, then the feeding connecting part is closed, the roller and the central flow guide hot air assembly are rotated, the recombined rice is forced to move axially and be thrown in the radial direction when the central flow guide hot air assembly rotates, and hot air is jetted through the annular hot air piece; the central flow guide hot air assembly also sprays hot air at the same time to form crossed hot air flow, gradient drying is formed through cooperation with the quartz infrared radiant panel and the hot air, spiral flow guide and circumferential / axial hot air are adopted to form a three-dimensional vortex, the thermal contact coverage rate of the surface of the recombined rice is greatly increased, the discharging connecting part is opened after drying is completed, and the recombined rice is fed into the screening machine body. The recombined rice is subjected to vibration suspension screening through the air vibration coupling screening bed mechanism, no-dead-corner screening is achieved as much as possible, and the screening penetrating rate of chippings is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of grain processing and relates to reconstituted rice drying and screening processing equipment. Background Art

[0002] In the production and processing of recombinant rice, drying and screening are crucial links. Traditional recombinant rice drying equipment has airflow dead corners during the drying process, resulting in large differences in the local moisture content of the recombinant rice. At the same time, during the screening process, there is a problem that the screening effect at the edge of the vibrating screen is weak, the broken rice powder is easy to clog the mesh, and the separation is not thorough. Therefore, it is urgent to design a recombinant rice drying and screening processing equipment that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a conveying and drying device for recombinant rice processing [application number: 202322022321.9], which includes a box body, a feed hopper is arranged at the upper end of the box body, and a first conveyor belt, a second conveyor belt and a mesh conveyor belt are arranged in sequence in the box body, the first conveyor belt is located below the feed hopper, the second conveyor belt is docked with the first conveyor belt, and the mesh conveyor belt is docked with the second conveyor belt, and a discharge port is arranged at the lower end of the box body; a hot air duct is arranged directly above the first conveyor belt, the second conveyor belt and the mesh conveyor belt, and a plurality of air outlets are opened on the hot air duct; a vibration component is arranged in the middle section of the mesh conveyor belt, and the vibration component includes a sliding rod that can move up and down, and the sliding rod moves downward to push the lower end mesh surface of the mesh conveyor belt to vibrate. However, there are still airflow dead corners in the drying process of this solution, resulting in large differences in the local moisture content of the recombinant rice. At the same time, during the screening process, there are still defects such as weak screening effect in the edge area of ​​the vibrating screen, easy clogging of the mesh by broken rice powder, and incomplete separation. Summary of the invention

[0004] The purpose of the present invention is to provide a reconstituted rice drying and screening processing equipment in view of the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A recombinant rice drying and screening processing equipment comprises a drying shell, on which a feed cylinder and a discharge cylinder are provided, a drum driven by a motor is provided in the drying shell, a rotatable central flow guide hot air component is provided in the drum, an annular hot air piece is arranged on the outer ring of the drum, a quartz infrared radiation plate is embedded in the inner wall of the drum, the annular hot air piece and the quartz infrared radiation plate are arranged alternately, a feed connection part and a discharge connection part are provided in the drum, the feed connection part corresponds to the position of the feed cylinder, the discharge connection part corresponds to the position of the discharge cylinder, a screening body is provided below the discharge cylinder, and an air-vibration coupled screening bed mechanism for screening recombinant rice and powder is provided in the screening body.

[0007] In the above-mentioned reconstituted rice drying and screening processing equipment, the central guide hot air component includes a central rotating drum arranged in the drum, the central rotating drum is driven by a motor, and the central rotating drum is provided with a spiral guide plate and a central hot air pipe, and the spiral guide plate and the central hot air pipe are arranged alternately.

[0008] In the above-mentioned recombinant rice drying and screening processing equipment, nozzles are installed on the central hot air pipe, and the nozzles are arranged in a 45° array.

[0009] In the above-mentioned reconstituted rice drying and screening processing equipment, the annular hot air component includes a hot air blower arranged on the outer ring of the drum, the drum is provided with circumferentially evenly distributed micro-spray holes, the hot air blower is connected to the micro-spray holes, and the quartz infrared radiation plate and the micro-spray holes are staggered.

[0010] In the above-mentioned recombinant rice drying and screening processing equipment, the feed connection part includes a feed channel arranged in the drum, and a feed baffle driven by a linear drive is provided in the feed channel.

[0011] In the above-mentioned recombinant rice drying and screening processing equipment, the discharge connection part includes a discharge channel arranged in the drum, and a discharge baffle driven by a linear drive is provided in the discharge channel.

[0012] In the above-mentioned reconstituted rice drying and screening processing equipment, the air-vibration coupled screen bed mechanism includes a screen plate arranged in a screening body, the screen plate has a plurality of screen holes, the screen plate is provided with a plurality of air flow holes staggered with the screen holes, an injection module is provided at the bottom of the air flow hole, a self-cleaning elastic structure is provided at the bottom of the screen plate, and an edge strengthening screening structure is provided at the edge of the screen plate.

[0013] In the above-mentioned reconstituted rice drying and screening processing equipment, the self-cleaning elastic structure includes an elastic ball fixing cylinder arranged at the bottom of the screen plate, and a silicone elastic ball is installed in the elastic ball fixing cylinder. The elastic ball fixing cylinder, the jet module and the screen hole are arranged alternately.

[0014] In the above-mentioned recombinant rice drying and screening processing equipment, the edge reinforcement screening structure includes an embedded air sweeping nozzle arranged at the frame of the screen plate.

[0015] In the above-mentioned reconstituted rice drying and screening processing equipment, sliding blocks extending into the screening body are provided at both ends of the screen plate, the top of the sliding block is connected to the screening body through a spring, and an eccentric wheel driven by a motor is provided under the sliding block.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. When the present invention is in use, the feed connection part is opened, the prepared recombinant rice is fed into the drum through the feed tube, and then the feed connection part is closed, the drum and the central guide hot air component are rotated, and the recombinant rice is forced to move axially and scattered radially during rotation through the central guide hot air component, and hot air is sprayed through the annular hot air part, and the central guide hot air component also sprays hot air at the same time to form a cross hot air flow, and the quartz infrared radiation plate is used to form a gradient drying with the hot air, and the spiral guide + circumferential / axial hot air is used to form a three-dimensional vortex, which greatly improves the thermal contact coverage rate of the recombinant rice surface, and after the drying is completed, the discharge connection part is opened, and the recombinant rice is fed into the screening body, and the recombinant rice is vibrated and suspended screened by the air-vibration coupled screen bed mechanism, so as to achieve the best possible dead angle screening and improve the debris screening rate.

[0018] 2. When screening recombinant rice, the present invention vibrates the screen plate up and down to cooperate with the screen holes for screening. An upward airflow is generated through the jet module and the airflow holes to achieve a synergistic effect. The vibration disperses the accumulated rice grains, and the airflow lifts the rice grains to achieve secondary suspension screening, which greatly improves the screening rate of debris. The self-cleaning elastic structure can collide with the screen surface with vibration to prevent hole blockage, and the edge-enhanced screening structure uses a pulsed airflow to remove edge accumulated materials.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0022] Figure 3 yes Figure 1 A magnified schematic diagram of point B in the middle.

[0023] Figure 4 yes Figure 1 Enlarged schematic diagram of point C in the middle.

[0024] In the figure: drying shell 1, feed cylinder 2, discharge cylinder 3, drum 4, central guide hot air component 5, annular hot air part 6, quartz infrared radiation plate 7, feed connection part 8, discharge connection part 9, screening body 10, air vibration coupled screen bed mechanism 11, central rotating cylinder 12, spiral guide plate 13, central hot air pipe 14, hot air blower 15, micro spray hole 16, feed channel 17, feed baffle 18, discharge channel 19, discharge baffle 20, screen plate 21, screen hole 22, air flow hole 23, jet module 24, self-cleaning elastic structure 25, edge reinforcement screening structure 26, elastic ball fixing cylinder 27, silicone elastic ball 28, embedded air sweeping nozzle 29, sliding block 30, spring 31, eccentric wheel 32. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, a recombinant rice drying and screening processing equipment comprises a drying shell 1, on which a feed cylinder 2 and a discharge cylinder 3 are provided, a drum 4 driven by a motor is provided in the drying shell 1, a rotatable central flow guide hot air component 5 is provided in the drum 4, an annular hot air piece 6 is arranged on the outer ring of the drum 4, a quartz infrared radiation plate 7 is embedded in the inner wall of the drum 4, the annular hot air piece 6 and the quartz infrared radiation plate 7 are alternately arranged, a feed connection part 8 and a discharge connection part 9 are provided in the drum 4, the feed connection part 8 corresponds to the position of the feed cylinder 2, the discharge connection part 9 corresponds to the position of the discharge cylinder 3, a screening body 10 is provided below the discharge cylinder 3, and an air-vibration coupled screening bed mechanism 11 for screening recombinant rice and powder is provided in the screening body 10.

[0027] In this embodiment, when in use, the feed connection part 8 is opened, the prepared recombinant rice is fed into the drum 4 through the feed tube 2, and then the feed connection part 8 is closed, the drum 4 and the central guide hot air component 5 are rotated, and the recombinant rice is forced to move axially and scattered radially during rotation through the central guide hot air component 5, and hot air is sprayed through the annular hot air part 6, and the central guide hot air component 5 also sprays hot air at the same time to form a cross hot air flow, and cooperates with the quartz infrared radiation plate 7 to form a gradient drying with the hot air, and spiral guide + circumferential / axial hot air is used to form a three-dimensional vortex, which greatly improves the thermal contact coverage rate of the recombinant rice surface, and after drying is completed, the discharge connection part 9 is opened, and the recombinant rice is fed into the screening body 10, and the recombinant rice is vibrated and suspended screened by the air vibration coupling screen bed mechanism 11, so as to achieve as much dead angle screening as possible and improve the debris screening rate.

[0028] Combination Figure 1-4As shown, the central guide hot air assembly 5 includes a central rotating drum 12 arranged in the drum 4, and the central rotating drum 12 is driven by a motor. A spiral guide plate 13 and a central hot air pipe 14 are provided on the central rotating drum 12. The spiral guide plate 13 and the central hot air pipe 14 are staggered. The central hot air pipe 14 is equipped with a nozzle, and the nozzle is arranged in a 45° array.

[0029] Specifically, during drying, the rotation of the central drum 12 drives the spiral guide plate 13 and the central hot air pipe 14 to rotate. The angle of the spiral guide plate 13 is 15°-25°, which can force the reconstituted rice to move axially and be scattered radially. The central hot air pipe 14 is equipped with nozzles, which are arranged in a 45° array to form a cross airflow with the annular hot air member 6. The spiral guide + circumferential / axial hot air is used to form a three-dimensional vortex, which greatly improves the thermal contact coverage of the reconstituted rice surface.

[0030] The annular hot air member 6 includes a hot air blower 15 arranged on the outer ring of the drum 4. The drum 4 is provided with micro spray holes 16 uniformly distributed in the circumferential direction. The hot air blower 15 is connected to the micro spray holes 16. The quartz infrared radiation plate 7 and the micro spray holes 16 are staggered.

[0031] In this embodiment, during the drying process, hot air is sprayed through the hot air blower 15 and the micro-spray hole 16 to carry out large-area drying. The quartz infrared radiation plate 7 (wavelength 2.5-4μm) forms gradient drying (high-temperature surface evaporation + internal moisture migration) with the hot air. The drum 4 is equipped with a distributed temperature and humidity sensor to feed back data to the PLC in real time, and dynamically adjust the hot air temperature (40-80℃) and wind speed (0.5-3m / s).

[0032] Combination Figure 2 As shown, the feed connection portion 8 includes a feed channel 17 arranged in the drum 4, and a feed baffle 18 driven by a linear drive is arranged in the feed channel 17.

[0033] In this embodiment, when feeding is required, the feeding baffle 18 is moved to open the feeding channel 17 .

[0034] Combination Figure 3 As shown, the discharge connection portion 9 includes a discharge channel 19 disposed in the drum 4 , and a discharge baffle 20 driven by a linear drive is disposed in the discharge channel 19 .

[0035] In this embodiment, when material discharge is required, the discharge baffle 20 is moved to open the discharge channel 19. Those skilled in the art should understand that a linear motor can be used as the linear drive.

[0036] The air-vibration coupled sieve bed mechanism 11 includes a sieve plate 21 arranged in the screening body 10, the sieve plate 21 has a plurality of sieve holes 22, the sieve plate 21 is provided with a plurality of airflow holes 23 staggered with the sieve holes 22, an air jet module 24 is provided at the bottom of the airflow holes 23, a self-cleaning elastic structure 25 is provided at the bottom of the sieve plate 21, and an edge strengthening screening structure 26 is provided at the edge of the sieve plate 21.

[0037] In this embodiment, when screening the recombinant rice, the screen plate 21 vibrates up and down, and cooperates with the screen hole 22 for screening. An upward airflow is generated through the jet module 24 and the air flow hole 23 to achieve a synergistic effect. The vibration disperses the accumulated rice grains, and the airflow lifts the rice grains to achieve secondary suspension screening, which greatly improves the debris screening rate. The self-cleaning elastic structure 25 can collide with the screen surface with vibration to prevent clogging, and the edge reinforcement screening structure 26 uses a pulsed airflow to remove edge accumulated materials. Those skilled in the art should understand that the jet module 24 is a prior art and a commercially available micro air pump can be selected.

[0038] Combination Figure 3 As shown, the self-cleaning elastic structure 25 includes an elastic ball fixing cylinder 27 arranged at the bottom of the screen plate 21, and a silicone elastic ball 28 is installed in the elastic ball fixing cylinder 27. The elastic ball fixing cylinder 27, the jet module 24 and the screen hole 22 are arranged alternately.

[0039] In this embodiment, during the vibration of the screen plate 21, the silicone elastic balls 28 can collide with the screen surface along with the vibration to prevent blockage of the holes.

[0040] Combination Figure 1 , Figure 4 As shown, the edge reinforcement screening structure 26 includes an embedded air sweeping nozzle 29 arranged at the frame of the screen plate 21.

[0041] In this embodiment, during the vibration of the screen plate 21 , the embedded air sweeping nozzle 29 clears the edge material accumulation with a pulsed airflow to avoid material accumulation at the edge of the screen plate 21 .

[0042] Combination Figure 4 As shown, both ends of the screen plate 21 are provided with sliding blocks 30 extending into the screening body 10, the top of the sliding block 30 is connected to the screening body 10 through a spring 31, and an eccentric wheel 32 driven by a motor is provided below the sliding block 30.

[0043] In this embodiment, during the screening process, the eccentric wheel 32 is driven to rotate by the motor, and the sliding block 30 and the spring 31 are cooperated to vibrate the screen plate 21 up and down to achieve screening.

[0044] The working principle of the present invention is:

[0045] When feeding is needed, the feeding baffle 18 is moved to open the feeding channel 17, and the prepared recombined rice is fed into the drum 4 through the feeding cylinder 2, and then the feeding channel 17 is closed, and the drum 4 and the central drum 12 are rotated. The rotation of the central drum 12 drives the spiral guide plate 13 and the central hot air pipe 14 to rotate. The angle of the spiral guide plate 13 is 15°-25°, which can force the recombined rice to move axially and be thrown radially. The hot air is sprayed through the hot air blower 15 and the micro-spray hole 16 to dry a large area. The quartz infrared radiation plate 7 (wave Length 2.5-4μm), forming gradient drying with hot air (high temperature surface evaporation + internal moisture migration), the drum 4 is equipped with a distributed temperature and humidity sensor to feed back data to the PLC in real time, dynamically adjust the hot air temperature (40-80℃) and wind speed (0.5-3m / s), the central hot air pipe 14 is equipped with a nozzle, the nozzle is arranged in a 45° array, and forms a cross airflow with the micro-spray hole 16, and adopts spiral guide + circumferential / axial hot air to form a three-dimensional vortex, which greatly improves the thermal contact coverage rate of the recombined rice surface.

[0046] When discharging is required, the discharging baffle 20 is moved to open the discharging channel 19, and the reconstituted rice is fed into the screening body 10. The eccentric wheel 32 is driven by the motor to rotate, and the sliding block 30 and the spring 31 are used to vibrate the screen plate 21 up and down. An upward airflow is generated through the jet module 24 and the air flow hole 23 to achieve a synergistic effect. The vibration disperses the accumulated rice grains, and the airflow lifts the rice grains to achieve secondary suspension screening, which greatly improves the debris screening rate. During the vibration of the screen plate 21, the silicone elastic ball 28 can collide with the screen surface with the vibration to prevent clogging. During the vibration of the screen plate 21, the embedded air sweeping nozzle 29 uses a pulsed airflow to remove the edge accumulation to avoid accumulation of material at the edge of the screen plate 21.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0048] Although the present invention uses the terms such as drying shell 1, feeding cylinder 2, discharging cylinder 3, drum 4, central hot air guide assembly 5, annular hot air member 6, quartz infrared radiation plate 7, feeding connection 8, discharging connection 9, screening body 10, air vibration coupling screening bed mechanism 11, central rotating cylinder 12, spiral guide plate 13, central hot air pipe 14, hot air blower 15, micro spray hole 16, feeding channel 17, feeding baffle 18, discharging channel 19, discharging baffle 20, screen plate 21, screen hole 22, air flow hole 23, jet module 24, self-cleaning elastic structure 25, edge strengthening screening structure 26, elastic ball fixing cylinder 27, silicone elastic ball 28, embedded air sweeping nozzle 29, sliding block 30, spring 31, eccentric wheel 32, etc. more frequently, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention, and interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A recombinant rice drying and screening processing equipment, comprising a drying shell (1), wherein the drying shell (1) is provided with a feed cylinder (2) and a discharge cylinder (3), characterized in that: The drying shell (1) is provided with a drum (4) driven by a motor, the drum (4) is provided with a rotatable central flow guide hot air component (5), the outer ring of the drum (4) is provided with an annular hot air component (6), the inner wall of the drum (4) is embedded with a quartz infrared radiation plate (7), the annular hot air component (6) and the quartz infrared radiation plate (7) are arranged alternately, the drum (4) is provided with a feed connection part (8) and a discharge connection part (9), the feed connection part (8) corresponds to the position of the feed cylinder (2), the discharge connection part (9) corresponds to the position of the discharge cylinder (3), a screening body (10) is provided below the discharge cylinder (3), and a gas vibration coupling screening bed mechanism (11) for screening recombinant rice and powder is provided in the screening body (10).

2. The recombinant rice drying and screening processing equipment according to claim 1, characterized in that: The central flow-guiding hot air assembly (5) comprises a central rotating drum (12) arranged in the drum (4), the central rotating drum (12) being driven by a motor, the central rotating drum (12) being provided with a spiral flow-guiding plate (13) and a central hot air pipe (14), the spiral flow-guiding plate (13) and the central hot air pipe (14) being arranged in an alternating manner.

3. The recombinant rice drying and screening processing equipment according to claim 2, characterized in that: The central hot air pipe (14) is provided with nozzles, which are arranged in a 45° array.

4. The recombinant rice drying and screening processing equipment according to claim 3, characterized in that: The annular hot air component (6) comprises a hot air blower (15) arranged on the outer ring of the drum (4), the drum (4) is provided with micro spray holes (16) uniformly distributed in the circumferential direction, the hot air blower (15) is connected to the micro spray holes (16), and the quartz infrared radiation plate (7) and the micro spray holes (16) are arranged in an alternating manner.

5. The recombinant rice drying and screening processing equipment according to claim 4, characterized in that: The feed connection portion (8) comprises a feed channel (17) arranged in the drum (4), and a feed baffle (18) driven by a linear drive is arranged in the feed channel (17).

6. The recombinant rice drying and screening processing equipment according to claim 5, characterized in that: The discharge connection portion (9) comprises a discharge channel (19) arranged in the drum (4), and a discharge baffle (20) driven by a linear drive is arranged in the discharge channel (19).

7. The recombinant rice drying and screening processing equipment according to claim 1, characterized in that: The air-vibration coupled sieve bed mechanism (11) comprises a sieve plate (21) arranged in a sieving machine body (10), the sieve plate (21) having a plurality of sieve holes (22), the sieve plate (21) having a plurality of airflow holes (23) arranged in an alternating manner with the sieve holes (22), an air jet module (24) being arranged at the bottom of the airflow holes (23), a self-cleaning elastic structure (25) being arranged at the bottom of the sieve plate (21), and an edge strengthening sieving structure (26) being arranged at the edge of the sieve plate (21).

8. The recombinant rice drying and screening processing equipment according to claim 7, characterized in that: The self-cleaning elastic structure (25) comprises an elastic ball fixing cylinder (27) arranged at the bottom of the screen plate (21), a silicone elastic ball (28) is installed in the elastic ball fixing cylinder (27), and the elastic ball fixing cylinder (27), the jet module (24) and the screen hole (22) are arranged in an alternating manner.

9. The recombinant rice drying and screening processing equipment according to claim 7, characterized in that: The edge reinforcement screening structure (26) comprises an embedded air sweeping nozzle (29) arranged at the frame of the screen plate (21).

10. The recombinant rice drying and screening processing equipment according to claim 7, characterized in that: Sliding blocks (30) extending into the screening machine body (10) are provided at both ends of the screen plate (21); the top of the sliding block (30) is connected to the screening machine body (10) via a spring (31); and an eccentric wheel (32) driven by a motor is provided below the sliding block (30).

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