A kind of recombination rice drying screening processing equipment

Abstract

The present application belongs to the technical field of grain processing, and relates to a recombined rice drying and screening processing equipment. The present application comprises a drying shell, wherein the drying shell is provided with a feeding cylinder and a discharging cylinder. In use, the prepared recombined rice is fed into the roller through the feeding cylinder, and then the feeding connection part is closed. The roller and the center flow guide hot air assembly are rotated. The center flow guide hot air assembly forcibly moves the recombined rice in the axial direction and radially spreads the recombined rice when rotating. Hot air is sprayed through the annular hot air part, and the center flow guide hot air assembly also sprays hot air, forming intersecting hot air flows. The quartz infrared radiation plate is combined to form a gradient drying with the hot air. A three-dimensional vortex is formed by the spiral flow guide and the circumferential / axial hot air, which greatly improves the surface thermal contact coverage of the recombined rice. After drying, the discharging connection part is opened, the recombined rice is fed into the screening machine body, and the recombined rice is vibrated and suspended and screened through the air vibration coupled screen bed mechanism, so that the screening is as complete as possible without dead angles, and the broken rice screening rate is improved.

Description

Technical Field

[0001] This invention belongs to the field of grain processing technology and relates to a reconstituted rice drying and screening processing equipment. Background Technology

[0002] In the production and processing of reconstituted rice, drying and screening are crucial steps. Traditional reconstituted rice drying equipment suffers from airflow dead zones during the drying process, leading to significant local differences in moisture content. Simultaneously, during screening, the vibrating screen's edge areas exhibit weak screening efficiency, with broken rice powder easily clogging the mesh and resulting in incomplete separation. Therefore, there is an urgent need to design a reconstituted rice drying and screening processing equipment that can overcome these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a conveying and drying device for reconstituted rice processing [Application No.: 202322022321.9], which includes a box body with a feeding hopper at the top. Inside the box body, a first conveyor belt, a second conveyor belt, and a mesh conveyor belt are arranged in sequence. The first conveyor belt is located below the feeding hopper, the second conveyor belt is connected to the first conveyor belt, and the mesh conveyor belt is connected to the second conveyor belt. A discharge port is provided at the bottom of the box body. Hot air ducts are provided directly above the first, second, and mesh conveyor belts, and multiple air outlets are opened on the hot air ducts. A vibration component is provided in the middle section of the mesh conveyor belt. The vibration component includes a sliding rod that can move up and down. When the sliding rod moves downward, it can push the lower mesh surface of the mesh conveyor belt to vibrate. However, this solution still has dead air zones during the drying process, resulting in large differences in the local moisture content of the reconstituted 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, and broken rice powder easily clogging the mesh, resulting in incomplete separation. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a reconstituted rice drying and screening processing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A reconstituted rice drying and screening processing device includes a drying shell, a feeding cylinder and a discharging cylinder on the drying shell, a motor-driven drum inside the drying shell, a rotatable central guiding hot air assembly inside the drum, annular hot air components arranged around the outer ring of the drum, a quartz infrared radiation plate embedded in the inner wall of the drum, the annular hot air components and the quartz infrared radiation plate being alternately arranged, a feeding connection part and a discharging connection part inside the drum, the feeding connection part corresponding to the position of the feeding cylinder, the discharging connection part corresponding to the position of the discharging cylinder, a screening body below the discharging cylinder, and a pneumatic vibration coupled sieve bed mechanism for screening reconstituted rice and powder inside the screening body.

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

[0008] In the aforementioned reconstituted rice drying and screening processing equipment, the central hot air pipe is equipped with nozzles 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 disposed on the outer ring of the drum, the drum is provided with circumferentially distributed micro-spray holes, the hot air blower is connected to the micro-spray holes, and the quartz infrared radiation plate is staggered with the micro-spray holes.

[0010] In the above-mentioned reconstituted rice drying and screening processing equipment, the feeding connection part includes a feeding channel disposed inside the drum, and the feeding channel is provided with a feeding baffle driven by a linear driver.

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

[0012] In the above-mentioned reconstituted rice drying and screening processing equipment, the air vibration coupling screen bed mechanism includes a screen plate disposed in the screening machine body, the screen plate having a plurality of screen holes, the screen plate having a plurality of airflow holes arranged alternately with the screen holes, the bottom of the airflow holes being provided with an air jet module, the bottom of the screen plate being provided with a self-cleaning elastic structure, and the edge of the screen plate being provided with an edge-reinforced screening structure.

[0013] In the above-mentioned reconstituted rice drying and screening processing equipment, the self-cleaning elastic structure includes an elastic ball fixing cylinder disposed at the bottom of the screen plate, the elastic ball fixing cylinder is filled with silicone elastic balls, and the elastic ball fixing cylinder, the air jet module and the screen holes are arranged alternately.

[0014] In the aforementioned reconstituted rice drying and screening processing equipment, the edge-enhanced screening structure includes an embedded air-sweeping nozzle disposed at the edge of the screen plate.

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

[0016] Compared with existing technologies, the advantages of this invention are:

[0017] 1. In use, the feeding connection is opened, and the prepared reconstituted rice is fed into the drum through the feeding cylinder. Then the feeding connection is closed. The drum and the central guide hot air assembly are rotated. The central guide hot air assembly forces the reconstituted rice to move axially and is radially scattered during rotation. Hot air is sprayed through the annular hot air component, and hot air is also sprayed by the central guide hot air assembly at the same time, forming a cross hot air flow. Combined with the quartz infrared radiation plate, it forms a gradient drying with the hot air. The spiral guide + circumferential / axial hot air form a three-dimensional vortex, which greatly improves the heat contact coverage of the reconstituted rice surface. After drying is completed, the discharge connection is opened, and the reconstituted rice is fed into the screening machine. The reconstituted rice is vibrated and suspended for screening by the air vibration coupling screen bed mechanism to achieve screening with as few dead corners as possible and improve the screening rate of debris.

[0018] 2. In the process of screening reconstituted rice, the screen plate vibrates up and down, and the screening is carried out in conjunction with the screen holes. An upward airflow is generated through the jet module and airflow holes to achieve a synergistic effect. The vibration disperses the rice grain accumulation, and the airflow lifts the rice grain 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 the vibration to prevent the holes from clogging. The edge-reinforced screening structure uses pulsed airflow to remove the edge accumulation.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0022] Figure 3 yes Figure 1 Enlarged diagram of point B in the middle.

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

[0024] In the diagram: 1. Drying shell; 2. Feeding cylinder; 3. Discharge cylinder; 4. Drum; 5. Central guide hot air assembly; 6. Annular hot air component; 7. Quartz infrared radiation plate; 8. Feeding connection; 9. Discharge connection; 10. Screening machine body; 11. Air vibration coupling screen bed mechanism; 12. Central rotating drum; 13. Spiral guide plate; 14. Central hot air pipe; 15. Hot air blower; 16. Micro nozzle; 17. Feeding channel; 18. Feeding baffle; 19. Discharge channel; 20. Discharge baffle; 21. Screen plate; 22. Screen hole; 23. Airflow hole; 24. Air jet module; 25. Self-cleaning elastic structure; 26. Edge-reinforced screening structure; 27. Elastic ball fixing cylinder; 28. Silicone elastic ball; 29. ​​Embedded air sweeping nozzle; 30. Sliding block; 31. Spring; 32. Eccentric wheel. Detailed Implementation

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

[0026] like Figure 1-4 As shown, a reconstituted rice drying and screening processing equipment includes a drying shell 1, a feeding cylinder 2 and a discharging cylinder 3 on the drying shell 1, a motor-driven drum 4 inside the drying shell 1, a rotatable central guiding hot air assembly 5 inside the drum 4, an annular hot air component 6 arranged around the outer ring of the drum 4, a quartz infrared radiation plate 7 embedded in the inner wall of the drum 4, the annular hot air component 6 and the quartz infrared radiation plate 7 being staggered, a feeding connection part 8 and a discharging connection part 9 inside the drum 4, the feeding connection part 8 corresponding to the position of the feeding cylinder 2, and the discharging connection part 9 corresponding to the position of the discharging cylinder 3, a screening body 10 below the discharging cylinder 3, and a pneumatic vibration coupled sieve bed mechanism 11 for screening reconstituted rice and powder inside the screening body 10.

[0027] In this embodiment, during use, the feeding connection 8 is opened, and the prepared reconstituted rice is fed into the drum 4 through the feeding cylinder 2. Then, the feeding connection 8 is closed, and the drum 4 and the central guiding hot air assembly 5 are rotated. The central guiding hot air assembly 5 forces the reconstituted rice to move axially and is radially scattered during rotation. Hot air is sprayed through the annular hot air component 6, and the central guiding hot air assembly 5 also sprays hot air at the same time, forming a cross hot air flow. Combined with the quartz infrared radiation plate 7, it forms a gradient drying with the hot air. The spiral guiding + circumferential / axial hot air form a three-dimensional vortex, which greatly improves the heat contact coverage of the reconstituted rice surface. After drying is completed, the discharge connection 9 is opened, and the reconstituted rice is fed into the screening machine body 10. The reconstituted rice is vibrated and suspended for screening through the air vibration coupling screen bed mechanism 11 to achieve screening with as few dead angles as possible and improve the screening rate of debris.

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

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

[0030] The annular hot air component 6 includes a hot air blower 15 disposed on the outer ring of the drum 4. The drum 4 is provided with circumferentially distributed micro-spray holes 16. The hot air blower 15 is connected to the micro-spray holes 16. The quartz infrared radiation plate 7 is staggered with the micro-spray holes 16.

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

[0032] Combination Figure 2 As shown, the feeding connection part 8 includes a feeding channel 17 disposed in the roller 4, and a feeding baffle 18 driven by a linear driver is provided in the feeding 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 part 9 includes a discharge channel 19 disposed inside the roller 4, and a discharge baffle 20 driven by a linear driver is provided inside the discharge channel 19.

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

[0036] The air vibration coupling screen bed mechanism 11 includes a screen plate 21 disposed in the screening machine body 10. The screen plate 21 has a plurality of screen holes 22. The screen plate 21 is provided with a plurality of airflow holes 23 that are staggered with the screen 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 screen plate 21. An edge-reinforced screening structure 26 is provided at the edge of the screen plate 21.

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

[0038] Combination Figure 3 As shown, the self-cleaning elastic structure 25 includes an elastic ball fixing cylinder 27 disposed at the bottom of the screen plate 21. The elastic ball fixing cylinder 27 is filled with silicone elastic balls 28. The elastic ball fixing cylinder 27, the air 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 ball 28 can collide with the screen surface to prevent clogging.

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

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

[0042] Combination Figure 4 As shown, the screen plate 21 has sliding blocks 30 extending into the screening machine body 10 at both ends. The top of the sliding block 30 is connected to the screening machine body 10 by a spring 31. 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 work together to vibrate the screen plate 21 up and down to achieve screening.

[0044] The working principle of this invention is:

[0045] When feeding is required, the feeding baffle 18 is moved to open the feeding channel 17, allowing the prepared reconstituted rice to be fed into the drum 4 through the feeding cylinder 2. The feeding channel 17 is then closed. The drum 4 and the central rotating drum 12 are rotated. The rotation of the central rotating drum 12 drives the spiral guide plate 13 and the central hot air pipe 14 to rotate. The spiral guide plate 13 has an angle of 15°-25°, which forces the reconstituted rice to move axially and spread radially. Hot air is sprayed through the hot air blower 15 and the micro-spray nozzles 16 for large-area drying. The quartz infrared radiation plate 7 (wave) The drum (2.5-4μm in length) forms a gradient drying process with the hot air (high-temperature surface evaporation + internal moisture migration). Distributed temperature and humidity sensors inside the drum 4 provide real-time data feedback to the PLC, dynamically adjusting the hot air temperature (40-80℃) and wind speed (0.5-3m / s). Nozzles are mounted on the central hot air duct 14, arranged in a 45° array, forming a cross-airflow with the micro-nozzles 16. The spiral guide combined with circumferential / axial hot air creates a three-dimensional vortex, significantly improving the thermal contact coverage of the reconstituted rice surface.

[0046] When discharge is required, the discharge baffle 20 is moved to open the discharge channel 19, allowing the reconstituted rice to be fed into the screening machine body 10. The motor drives the eccentric wheel 32 to rotate, which, together with the sliding block 30 and the spring 31, vibrates the screen plate 21 up and down. The jet module 24 and the airflow hole 23 generate an upward airflow, achieving a synergistic effect. The vibration disperses the rice grain accumulation, and the airflow lifts the rice grain to achieve secondary suspension screening, greatly improving the screening rate of debris. During the vibration of the screen plate 21, the silicone elastic ball 28 can collide with the screen surface to prevent clogging. During the vibration of the screen plate 21, the embedded air sweeping nozzle 29 removes the edge accumulation with pulsed airflow, preventing material accumulation at the edge of the screen plate 21.

[0047] The specific embodiments described herein are merely illustrative examples of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention.

[0048] Although this document frequently uses terms such as drying shell 1, feed cylinder 2, discharge cylinder 3, drum 4, central guide hot air assembly 5, annular hot air component 6, quartz infrared radiation plate 7, feed connection part 8, discharge connection part 9, screening machine body 10, air vibration coupling screen bed mechanism 11, central rotating drum 12, spiral guide plate 13, central hot air pipe 14, hot air blower 15, micro nozzle 16, feed channel 17, feed baffle 18, discharge channel 19, discharge baffle 20, screen plate 21, screen hole 22, airflow hole 23, jet module 24, self-cleaning elastic structure 25, edge-reinforced 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., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention, and interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A reconstituted rice drying and screening processing device, 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 equipped with a drum (4) driven by a motor. The drum (4) is equipped with a rotatable central guide hot air assembly (5). The drum (4) is surrounded by annular hot air components (6). The inner wall of the drum (4) is embedded with a quartz infrared radiation plate (7). The annular hot air components (6) and the quartz infrared radiation plate (7) are staggered. The drum (4) is equipped with a feeding connection part (8) and a discharging connection part (9). The feeding connection part (8) corresponds to the position of the feeding cylinder (2). The discharging connection part (9) corresponds to the position of the discharging cylinder (3). A screening machine body (10) is provided below the discharging cylinder (3). The screening machine body (10) is equipped with a pneumatic vibration coupling sieve bed mechanism (11) for screening reconstituted rice and powder. The central guide hot air assembly (5) includes a central rotating drum (12) disposed inside the drum (4). The central rotating drum (12) is driven by a motor. The central rotating drum (12) is provided with a spiral guide plate (13) and a central hot air pipe (14). The spiral guide plate (13) and the central hot air pipe (14) are arranged alternately. The central hot air pipe (14) is equipped with nozzles arranged in a 45° array. The air vibration coupling screen bed mechanism (11) includes a screen plate (21) disposed in the screening machine body (10). The screen plate (21) has a plurality of screen holes (22). The screen plate (21) is provided with a plurality of airflow holes (23) that are staggered with the screen holes (22). The bottom of the airflow holes (23) is provided with an air jet module (24). The bottom of the screen plate (21) is provided with a self-cleaning elastic structure (25). The edge of the screen plate (21) is provided with an edge-reinforced screening structure (26). The self-cleaning elastic structure (25) includes an elastic ball fixing cylinder (27) disposed at the bottom of the screen plate (21). The elastic ball fixing cylinder (27) is filled with silicone elastic balls (28). The elastic ball fixing cylinder (27), the air jet module (24) and the screen holes (22) are staggered.

2. The reconstituted rice drying and screening processing equipment according to claim 1, characterized in that, The annular hot air component (6) includes a hot air blower (15) disposed on the outer ring of the drum (4). The drum (4) is provided with circumferentially distributed micro-spray holes (16). The hot air blower (15) is connected to the micro-spray holes (16). The quartz infrared radiation plate (7) is staggered with the micro-spray holes (16).

3. The reconstituted rice drying and screening processing equipment according to claim 2, characterized in that, The feeding connection part (8) includes a feeding channel (17) disposed in the roller (4), and a feeding baffle (18) driven by a linear driver is provided in the feeding channel (17).

4. The reconstituted rice drying and screening processing equipment according to claim 3, characterized in that, The discharge connection part (9) includes a discharge channel (19) disposed in the drum (4), and a discharge baffle (20) driven by a linear driver is provided in the discharge channel (19).

5. The reconstituted rice drying and screening processing equipment according to claim 1, characterized in that, The edge-reinforced screening structure (26) includes an embedded air-sweeping nozzle (29) disposed at the edge of the screen plate (21).

6. The reconstituted rice drying and screening processing equipment according to claim 1, characterized in that, The screen plate (21) has sliding blocks (30) at both ends that extend into the screening machine body (10). The top of the sliding block (30) is connected to the screening machine body (10) by a spring (31). An eccentric wheel (32) driven by a motor is provided below the sliding block (30).

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