Rice production line suitable for standardized production of organic rice

Abstract

The utility model provides a rice production line suitable for standardized production of organic rice, which comprises a screening device, grain ridging devices, a rice milling device and a polishing device, the screening device is in butt joint with different grain ridging devices, brown rice processed by different grain ridging devices is in butt joint with different rice milling chambers, and primary rice output by the rice milling chambers enters the polishing device to obtain polished rice; wherein the peeling mechanisms in the different grain ridging devices, the rice milling mechanisms in the different rice milling chambers and the polishing mechanism in the polishing device all comprise a plurality of first rollers and second rollers which are opposite in rotating direction, and in the rotating process, processing cavities with gradually-changed sizes are formed between first convex blocks on the first rollers and second convex blocks on the second rollers; the machining cavity comprises a feeding section, a first machining section, a second machining section and a discharging section. According to the utility model, a mechanism for treating the surface of unhusked rice or rice in the rice processing technology is simplified, and the broken rice rate in the technological process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rice production, and in particular to a rice production line suitable for the standardized production of organic rice. Background Art

[0002] A rice production line typically includes: rice cleaning, ridge and husk separation, brown rice cleaning, rice milling, white rice grading, color sorting and polishing, and packaging. Through this processing line, the rice is transformed into fine rice. During the husk separation, rice milling, and polishing processes, specific rotating rollers are typically used. The friction between the rice and the rollers removes the rice's outer skin, or polishes the rice surface to create a smoother surface, thereby improving the rice's quality. However, due to the varying sizes of rice, the selection of roller type often fails to account for rice that doesn't meet the specifications. This can result in some rice being overprocessed, resulting in broken grains, while others may be underprocessed, leaving the outer skin untreated. While screening and sorting can address these differences in rice size, allowing for sorted processing, it doesn't prevent smaller rice grains from being screened out, resulting in the continued problem of broken rice. Utility Model Content

[0003] The embodiment of the utility model provides a rice production line suitable for the standardized production of organic rice, so as to solve the technical problem of high broken rice rate in the rice processing process.

[0004] The utility model provides a rice production line suitable for the standardized production of organic rice, comprising a screening device, a ridge device, a rice milling device, and a polishing device. The screening device comprises a plurality of discharge ports, and different discharge ports are connected to different ridge devices. The rice milling device is provided with a plurality of rice milling chambers. The brown rice processed by different ridge devices is connected to different rice milling chambers respectively. The first-grade rice output by the rice milling chamber enters the polishing device for processing to obtain polished rice.

[0005] The screening device is provided with a plurality of screens and a rolling plate, the screens are arranged relatively tilted, the rolling plate is connected to the lowest end of the screens, and the screens are arranged to vibrate in a direction perpendicular to the screen surface and rotate along the circumference of the screens;

[0006] The peeling mechanism in different ridge devices, the rice milling mechanism in different rice milling chambers, and the polishing mechanism in the polishing device all include multiple first rollers and second rollers, the first rollers are adjacent to the second rollers and rotate in opposite directions, the first rollers include first convex blocks, and the second rollers include second convex blocks. During rotation, a processing cavity with a gradually changing volume is formed between the first convex blocks and the second convex blocks, and the processing cavity includes a feeding section, a first processing section, a second processing section, and a discharging section.

[0007] Optionally, a slag cleaning mechanism is further provided above the first roller and the second roller, and the slag cleaning mechanism includes an air pipe horizontal to the surface of the first roller and the second roller, and a plurality of strip-shaped air outlets are provided on the air pipe, and the strip-shaped air outlets are aligned with the processing chamber.

[0008] Optionally, a debris removal transmission mechanism is further included between the ridge device and the rice milling device, and the debris removal transmission mechanism includes: a vibrating conveyor belt, a first fan, and a silo. The filter material is arranged at the discharge port of the vibrating conveyor belt, the first fan is arranged above the vibrating conveyor belt and is configured to remove light impurities, and the silo is configured to connect with the feed port of the rice milling device.

[0009] Optionally, the screening device is a multi-layer structure, each layer of the structure includes a second fan, and the rotation directions of adjacent screens are opposite.

[0010] Optionally, the first roller and the second roller of the polishing device include water outlets, and the first roller and the second roller include water storage chambers.

[0011] Optionally, the water outlet is arranged on the inner wall of the processing chamber, and the water outlet direction is tangential to the inner wall of the processing chamber.

[0012] Optionally, a drying mechanism is further included, which is arranged at the discharge port of the polishing device. A vibration table is provided in the middle area of the conveyor belt of the drying mechanism, and a heating unit is provided above the conveyor belt.

[0013] Optionally, it further includes a color sorting device and a packaging mechanism, wherein the color sorting device is arranged after the rice milling device and before the polishing device, and the packaging mechanism is arranged after the polishing device. The color sorting device selects the polished rice according to a preset color; the packaging mechanism is configured to classify and package the polished rice.

[0014] The beneficial effects of the utility model are:

[0015] 1) The surface treatment mechanism of paddy or rice in rice processing was optimized, which reduced the broken rice rate during the process;

[0016] 2) The structure of the screening device was optimized to improve the quality and efficiency of screening;

[0017] 3) Providing air vents on the rollers during processing can not only effectively remove impurities on the roller surface, but also allow the paddy or rice to rotate in the processing cavity between the rollers to prevent it from being squeezed;

[0018] 4) The rollers of the polishing device are equipped with water columns that are tangential to the inner wall of the processing chamber, which increases the polishing effect of the rice and reduces the friction between the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic top view of a rice production line suitable for standardized production of organic rice provided in the present application;

[0020] Figure 2 A schematic diagram showing the forward internal structure of the screening device in this application;

[0021] Figure 3 A forward schematic diagram showing the relative positions of the first roller, the second roller, and the slag cleaning mechanism in this application;

[0022] Figure 4 A schematic diagram showing the planar structure of the process from rice entering the processing chamber to rice exiting the processing chamber in this application;

[0023] Figure 5 It is a schematic diagram showing the forward structure of the drying mechanism in this application.

[0024] In the picture:

[0025] 1: screening device; 11: screen; 12: rolling plate;

[0026] 2: Ridge device; 4: Polishing device;

[0027] 3: rice milling device; 31: rice milling room;

[0028] 6: first roller; 61: first protrusion;

[0029] 7: second roller; 71: second protrusion;

[0030] 8: processing chamber; 81: feeding section; 82: first processing section; 83: second processing section; 84: discharging section;

[0031] 9: slag cleaning mechanism; 10: impurity removal and transmission mechanism;

[0032] 111: conveyor belt; 112: vibration table; 113: heating unit. DETAILED DESCRIPTION

[0033] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, with reference to the accompanying drawings. Furthermore, the phrases "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0034] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or terminal device comprising the element.

[0035] A rice production line typically includes: paddy cleaning, ridge and husk separation, brown rice cleaning, rice milling, white rice grading, color sorting and polishing, and packaging. The rice cleaning equipment is primarily used to remove impurities such as sand, straw, and shriveled rice from the rice, ensuring that the rice entering the next process is clean and free of impurities. The ridge and husk separation equipment removes the outer shell of the rice through friction and impact, while the husk separator effectively separates the husk from the brown rice. The brown rice cleaning equipment further cleans the brown rice to ensure its quality. The rice milling equipment removes the surface cortex of the brown rice to obtain white rice through the friction of its internal sand rollers and iron rollers. The white rice grading equipment classifies rice into different grades based on particle size and integrity. The color sorting and polishing equipment uses optical principles to identify and remove discolored grains from the rice, while the polishing machine further removes bran powder from the rice surface, making the rice surface smoother.

[0036] In the aforementioned processes of hull separation, rice milling, and polishing, specific rotating rollers are usually used to remove the rice skin by utilizing the friction between the rice grains or the rollers, or to polish the rice surface to make it smoother, thereby improving the quality of rice processing. However, due to the difference in the specifications of the rice grains or the rice size, it is often impossible to take into account the rice that does not meet the specifications when selecting the type of roller, which will cause some rice to be over-processed, resulting in broken grains, and some rice to be not processed thoroughly, with the surface skin not being cleaned. Although the size difference of rice or rice grains can be solved by screening and classification, and they can be classified and processed after screening, it cannot change the fact that rice grains with smaller size differences cannot be screened out, and the problem of broken rice will still occur. Therefore, the present invention further optimizes the corresponding structure to solve the problem of high broken rice rate during rice processing.

[0037] The utility model provides a rice production line suitable for the standardized production of organic rice. Figure 1As shown, the rice production line includes a screening device 1, a ridge device 2, a rice milling device 3, and a polishing device 4. The screening device 1 includes multiple discharge ports, each of which connects to a different ridge device 2. The rice milling device 3 is provided with multiple rice milling chambers 31. The brown rice processed by different ridge devices 2 connects to different rice milling chambers 31. The first-grade rice output by the rice milling chambers 31 enters the polishing device 4 for processing to obtain polished rice. The rice production line provided by the present invention mainly includes a screening device 1 for screening rice of different sizes. After screening, the rice of different sizes enters different ridge devices 2. The ridge devices 2 respectively hull the different rice grains to obtain brown rice of different sizes. These brown rice of different sizes enter different rice milling chambers 31 of the rice milling device 3 to obtain first-grade rice of different sizes. Finally, the first-grade rice is polished in the polishing device 4 to obtain polished rice. The utility model screens and separates rice grains according to their specifications and sizes, and then removes the outer skin and the skin to obtain different types of polished rice. Rice of multiple specifications can be processed at one time to obtain multiple types of polished rice, thereby improving the efficiency of rice processing.

[0038] Among them, such as Figure 2 As shown, a plurality of screens 11 and roller plates 12 are provided in the screening device 1. The roller plates 12 are connected to the discharge tongue of the screen 11. The discharge tongue is set at the lowest end of the screen 11. The screen 11 is set to vibrate in a direction perpendicular to the mesh surface and rotate circumferentially along the screen 11, so that the rice is subjected to the friction force of the surface of the screen 11. Under the action of rotation, the friction force is amplified and increased, so that the outer coat of the rice is worn by the screen 11 many times, which is convenient for removal later. In addition, in the utility model, the screen 11 is relatively tilted, and the screen 11 is cleaned and rotated, so that the rice is convenient to screen under the action of centrifugal force and gravity, and the rice that is finally screened flows out from the discharge tongue. The function of the roller plate 12 is to receive the rice screened by the screen 11 and send it to the discharge tongue, which is a connecting role.

[0039] It should be noted that the peeling mechanisms in different ridge devices 2, the rice milling mechanisms in different rice milling chambers 31, and the polishing mechanism in the polishing device 4 in the aforementioned rice production line all include multiple first rollers 6 and second rollers 7. The first roller 6 is adjacent to the second roller 7 and rotates in opposite directions. The first roller 6 includes a first convex block 61 and the second roller 7 includes a second convex block 71. During the rotation process, a processing cavity 8 with a gradually changing volume is formed between the first convex block 61 and the second convex block 71. The processing cavity 8 includes a feeding section 81, a first processing section 82, a second processing section 83, and a discharging section 84.

[0040] like Figure 3 and Figure 4As shown, the first protrusion 61 and the second protrusion 71 on the first roller 6 and the second roller 7 interact with each other to form a processing chamber 8 for extruding and processing rice. The processing chamber 8 includes a feeding section 81 for the rice to enter. The section has a large input and a small output, and is in the shape of a long strip, so that the rice is straightened and fed into the first processing section 82 along its length. The size difference between the first processing section 82 and the second processing section 83 is intended to allow the rice to be processed in the first processing section 82 and then finely processed in the second processing section 83. During the processing, the first roller 6 and the second roller 7 are respectively an emery roller with greater friction and an iron roller with less friction. The rotating emery rollers can easily squeeze and rub the outer coat of the rice to remove it.

[0041] In addition, rollers of different specifications are arranged in different rice milling chambers 31, that is, the sizes of the processing cavities 8 formed are different, which is intended to process brown rice of different specifications.

[0042] like Figure 3 As shown, a slag cleaning mechanism 9 is further provided above the first roller 6 and the second roller 7. The slag cleaning mechanism 9 includes an air pipe horizontal to the surfaces of the first roller 6 and the second roller 7, and is provided with a plurality of strip-shaped air outlets on the air pipe. The strip-shaped air outlets are aligned with the processing chamber 8. The provision of air outlet holes on the processing rollers can not only effectively remove impurities on the roller surfaces, but also allow the paddy or rice to rotate in the processing chamber 8 between the rollers to prevent it from being squeezed.

[0043] like Figure 1 As shown, a conveyor mechanism 10 for removing impurities is installed between the ridge assembly 2 and the rice milling assembly 3. This mechanism 10 comprises a vibrating conveyor belt, a first fan, and a silo. A filter is located at the discharge port of the vibrating conveyor belt. The first fan is mounted above the vibrating conveyor belt and is configured to remove light impurities. The silo is connected to the feed port of the rice milling assembly 3. The first fan draws the outer coverings of the rice grains mixed with the brown rice into a recovery device. The vibration of the conveyor belt temporarily separates the brown rice from the conveyor belt, allowing the first fan to pick up any fallen rice grains.

[0044] In some embodiments, the screening device 1 is a multi-layered structure, with each layer including a second fan, and adjacent screens 11 rotating in opposite directions. The second fan functions like the first fan, removing the outer covering of rice grains that fall off during the screening process. Furthermore, adjacent screens 11 rotate in opposite directions to adjust the direction of the rice grains, increase filtering difficulty, and improve screening accuracy.

[0045] In some embodiments, the first roller 6 and the second roller 7 of the polishing device 4 include a water outlet, and the first roller 6 and the second roller 7 include a water storage cavity. The water outlet is set on the inner wall of the processing cavity 8, and the water outlet direction is tangential to the inner wall of the processing cavity 8.

[0046] In this embodiment, in order to improve the polishing effect and reduce the resistance of polishing, a water storage chamber is set in the first roller 6 and the second roller 7, and the pressure is controlled to spray water along the inner wall of the processing chamber 8. On the one hand, the powder in the processing chamber 8 can be washed away as quickly as possible, and on the other hand, the surface gloss of the produced polished rice can be increased, thereby improving the quality of polished rice processing.

[0047] In addition, the surface moisture of the polished rice needs to be dried after adding water and polishing, that is, it also includes a drying mechanism, such as Figure 5 As shown, a drying mechanism is installed at the discharge port of the polishing device 4 to dry the polished rice after polishing to prevent quality problems such as deterioration after subsequent packaging. A vibration table 112 is installed in the middle area of the conveyor belt 111 of the drying device, and a heating unit 113 is installed above the conveyor belt 111. This heating unit 113 uses infrared lamps to heat the polished rice from directly above the conveyor belt 111. In addition, to prevent the polished rice from being dried on only one side while the side attached to the conveyor belt 111 is not dried, a section of the conveyor belt 111 is selected and the vibration table 112 is used to control the vibration of the conveyor belt 111, thereby bouncing the polished rice on its surface to fully dry the entire rice grain.

[0048] The production line also includes a color sorting device and a packaging mechanism. The color sorting device is located after the rice milling device 3 and before the polishing device 4. The packaging mechanism is located after the polishing device 4. The color sorting device sorts the polished rice according to a predetermined color quality; the packaging mechanism is configured to sort and package the polished rice. The color sorting device is used to remove or sort rice kernels of poor color or defective kernels and is a key inspection and screening mechanism in high-quality rice production lines. The corresponding equipment can be based on existing related equipment. The packaging mechanism is an automatic packaging machine, which is also conventional and is not specifically limited in this embodiment.

[0049] Finally, the utility model provides a rice production line suitable for standardized production of organic rice, including a screening device 1, a ridge device 2, a rice milling device 3, and a polishing device 4. Different discharge ports of the screening device 1 are connected to different ridge devices 2, and the brown rice processed by different ridge devices 2 are connected to different rice milling chambers 31 respectively. The first-grade rice output by the rice milling chamber 31 enters the polishing device 4 to obtain polished rice; wherein, a plurality of screens 11 and rolling plates 12 are provided in the screening device 1, and the screens 11 are relatively inclined. The screens 11 are arranged to be moved along a direction perpendicular to the screen. The hulling mechanism within each ridge unit 2, the rice milling mechanism within each rice milling chamber 31, and the polishing mechanism within the polishing unit 4 all include a plurality of first rollers 6 and second rollers 7. The first rollers 6 and second rollers 7 are adjacent and rotate in opposite directions. During rotation, a processing chamber 8 with a gradually changing volume is formed between the first protrusion 61 on the first roller 6 and the second protrusion 71 on the second roller 7. The processing chamber 8 includes an inlet section 81, a first processing section 82, a second processing section 83, and a discharge section 84. The present invention simplifies the mechanism for surface treatment of paddy or rice during rice processing, reducing the rate of broken rice during the process.

[0050] It should be noted that the above embodiments all belong to the same utility model concept, and the descriptions of each embodiment have different focuses. For any details not described in a particular embodiment, reference can be made to the descriptions of other embodiments. The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in conjunction with each other.

[0051] The above embodiments merely illustrate the implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A rice production line suitable for standardized production of organic rice, comprising a screening device (1), a ridge-raising device (2), a rice milling device (3), and a polishing device (4); the screening device (1) comprises a plurality of discharge ports, different discharge ports are connected to different ridge-raising devices (2); the rice milling device (3) is provided with a plurality of rice milling chambers (31); the brown rice processed by different ridge-raising devices (2) are connected to different rice milling chambers (31), respectively; the first-grade rice output from the rice milling chambers (31) enters the polishing device (4) and is processed to obtain polished rice; It is characterized by: The screening device (1) is provided with a plurality of screens (11) and a rolling plate (12), the screens (11) are arranged to be relatively inclined, the rolling plate (12) is connected to the lowest end of the screens (11), and the screens (11) are arranged to vibrate in a direction perpendicular to the screen surface and to rotate circumferentially along the screens (11); The peeling mechanisms in different ridge devices (2), the rice milling mechanisms in different rice milling chambers (31), and the polishing mechanisms in the polishing device (4) all include a plurality of first rollers (6) and second rollers (7). The first rollers (6) and the second rollers (7) are adjacent to each other and rotate in opposite directions. During the rotation process, a processing cavity (8) with a gradually changing volume is formed between the first convex block (61) on the first roller (6) and the second convex block (71) on the second roller (7). The processing cavity (8) includes a feeding section (81), a first processing section (82), a second processing section (83), and a discharging section (84).

2. The rice production line suitable for standardized production of organic rice according to claim 1, characterized in that: The first roller (6) and the second roller (7) also include a slag cleaning mechanism (9), which includes an air pipe horizontal to the surface of the first roller (6) and the second roller (7), and a plurality of strip-shaped air outlets are provided on the air pipe, and the strip-shaped air outlets are aligned with the processing chamber (8).

3. The rice production line suitable for standardized production of organic rice according to claim 1, characterized in that: A debris removal transmission mechanism (10) is further provided between the ridge device (2) and the rice milling device (3). The debris removal transmission mechanism (10) comprises: a vibrating transmission belt, a first fan, and a silo. The filter material is provided at the discharge port of the vibrating transmission belt. The first fan is provided on the vibrating transmission belt and is configured to remove light impurities. The silo is configured to dock with the feed port of the rice milling device (3).

4. The rice production line suitable for standardized production of organic rice according to claim 1, characterized in that: The screening device (1) is a multi-layer structure, each layer of the structure comprises a second fan, and the rotation directions of adjacent screens (11) are opposite.

5. The rice production line suitable for standardized production of organic rice according to claim 1, characterized in that: The first roller (6) and the second roller (7) of the polishing device (4) comprise water outlets, and the first roller (6) and the second roller (7) comprise water storage chambers.

6. The rice production line suitable for standardized production of organic rice according to claim 5, characterized in that: The water outlet is arranged on the inner wall of the processing chamber (8), and the water outlet direction is tangential to the inner wall of the processing chamber (8).

7. The rice production line suitable for standardized production of organic rice according to claim 6, characterized in that: It also includes a drying mechanism, which is arranged at the discharge port of the polishing device (4), a vibration table (112) is provided in the middle area of the conveyor belt (111) of the drying mechanism, and a heating unit (113) is provided on the conveyor belt (111).

8. The rice production line suitable for standardized production of organic rice according to claim 6, characterized in that: It also includes a color sorting device and a packaging mechanism, wherein the color sorting device is arranged after the rice milling device (3) and before the polishing device (4), and the packaging mechanism is arranged after the polishing device (4). The color sorting device selects the polished rice according to a preset color; and the packaging mechanism is arranged to classify and package the polished rice.

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