Processing technology of organic rice

Controlling the moisture content of organic rice through two drying processes solves the problem of difficulty in controlling the moisture content of rice before dehulling in the prior art, reducing the rate of broken rice and production costs, and improving the strength of the rice grains and the softness of the outer skin.

CN116474858BActive Publication Date: 2025-06-20HANYIN COUNTY XINXIN RICE CO LTD
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Patent Information

Application Number
CN202310501796.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-06
Publication Date
2025-06-20
Estimated Expiration
2043-05-06

AI Technical Summary

Technical Problem

The prior art is difficult to effectively control the moisture content of organic rice before dehulling, resulting in a high rate of broken rice and an increase in production costs.

Method used

The water content of rice is controlled at 30%-40% after the first drying, and at 15%-17% after the second drying, so as to control the water content of rice before dehulling.

Benefits of technology

By controlling the moisture content of rice, the rate of broken rice during rice processing is reduced, the production cost is reduced, and the strength of the rice grains and the softness of the outer skin are ensured.

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Abstract

The present invention relates to the technical field of rice processing, and more specifically to a processing technology for organic rice. The process includes the following steps: S1: removing impurities from the harvested paddy; S2: putting the paddy after impurity removal into a drying device for primary drying; S3: performing secondary drying through the drying device after primary drying; S4: hulling the dried paddy to obtain brown rice and separating the brown rice from the chaff; S5: putting the brown rice into a rice milling machine to remove the bran and obtain polished rice; S6: grading and screening the polished rice through a color sorter. The drying device includes a bracket, a support plate is fixedly connected to the upper side of the bracket, a plurality of air blowers are fixedly connected inside the support plate, a plurality of flow guiding plates are fixedly connected above the air blowers, a drying plate is fixedly connected to the upper side of the support plate, a plurality of air grooves are opened inside the drying plate, a wind baffle is fixedly connected to the upper side of each air groove, and the upper side of the drying plate is an inclined surface inclined to the right. The beneficial effect is that it is convenient to control the water content of the organic rice before hulling.
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Description

Technical Field

[0001] The present invention relates to the technical field of rice processing, and more specifically to a processing technology for organic rice. Background Art

[0002] Organic rice refers to rice grown by using natural and organic planting methods during the process of rice cultivation, which is completely grown by natural farming methods. It contains more trace elements such as iron, magnesium, calcium and vitamin C, while the content of heavy metals and carcinogenic nitrates is relatively low. The quantity of organic rice is strictly controlled, requiring fixed plots and fixed yields, and there are no such strict requirements for the production of other rice. Therefore, the price of organic rice is relatively high.

[0003] During the process of processing rice, the breakage rate of rice during processing can be reduced by controlling the water content in paddy, thereby reducing production costs. In order to maintain an appropriate water content, it is necessary to dry the paddy before hulling. When the drying time is too long and the water content is too low, water replenishment is also required. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the present invention provides a processing technology for organic rice, and its beneficial effect is that it is convenient to control the water content of organic rice before hulling.

[0005] A processing technology for organic rice, the technology includes the following steps:

[0006] S1: Remove impurities from the harvested paddy;

[0007] S2: Put the impurity-removed paddy into a drying device for primary drying;

[0008] S3: Conduct secondary drying through the drying device after primary drying;

[0009] S4: Hull the dried paddy to obtain brown rice, and separate the rice and the chaff;

[0010] S5: Put the brown rice into a rice milling machine to remove the bran and obtain polished rice;

[0011] S6: Classify and screen the polished rice through a color sorter.

[0012] The water content of the paddy after primary drying in step S2 is 30%-40%.

[0013] The water content of the paddy after secondary drying in step S3 is 15%-17%.

[0014] After screening in step S6, the polished rice is polished.

[0015] The drying device includes a bracket, on the upper side of which a support plate is fixedly connected. Inside the support plate, a plurality of fans are fixedly connected. Above the fans, a plurality of flow guide plates are fixedly connected. On the upper side of the support plate, a drying plate is fixedly connected. Inside the drying plate, a plurality of air grooves are formed. Above each air groove, a wind baffle is fixedly connected. The upper side of the drying plate is an inclined plane sloping to the right. Description of the Drawings

[0016] The following further elaborates on the present invention in detail in conjunction with the drawings and specific implementation methods.

[0017] Figure 1 It is the process flow diagram of the processing technology of organic rice in the present invention;

[0018] Figure 2 It is the structural schematic diagram of the drying device in the present invention;

[0019] Figure 3 It is the structural schematic diagram of the bracket in the present invention;

[0020] Figure 4 It is the structural schematic diagram of the fixing plate in the present invention;

[0021] Figure 5 It is the cross-sectional view of the fixing plate in the present invention;

[0022] Figure 6 It is the cross-sectional view of the support plate and the fixing seat in the present invention;

[0023] Figure 7 In the present invention Figure 6 The enlarged cross-sectional view;

[0024] Figure 8 It is the structural schematic diagram of the support plate and the drying plate in the present invention;

[0025] Figure 9 It is the partial cross-sectional view of the support plate in the present invention;

[0026] Figure 10 It is the structural schematic diagram of the drying plate in the present invention;

[0027] Figure 11 It is the structural schematic diagram of the fixing seat and the rotating rod in the present invention;

[0028] Figure 12 It is the structural schematic diagram of the fixing seat in the present invention;

[0029] Figure 13 It is the cross-sectional view of the rotating rod in the present invention.

[0030] In the figure: bracket 101; storage bin 102; distance measuring device 103; fixing plate 104; rotating shaft 105; magnetic rod 106; magnetic ring 107; motor I 108;

[0031] Support plate 201; blower 202; deflector 203; drying plate 204; air duct 205; wind baffle 206; shunt bin 207; discharge port 208; discharge plate 209; control panel 210; switch Ⅰ 211; switch Ⅱ 212; motor Ⅱ 213; fixed shaft 214;

[0032] Fixed seat 301; limit plate 302; rotating rod 303; drying bin 304; limit groove 305; support rod 306; counterweight 307. Detailed implementation mode

[0033] A processing technology for organic rice, the technology comprising the following steps:

[0034] S1: Remove impurities from the harvested paddy rice;

[0035] S2: Put the paddy rice after impurity removal into a drying device for primary drying;

[0036] S3: Conduct secondary drying through the drying device after primary drying;

[0037] S4: Hull the dried paddy rice to obtain brown rice, and separate the brown rice from the chaff;

[0038] S5: Put the brown rice into a rice milling machine to remove the bran to obtain polished rice;

[0039] S6: Classify and screen the polished rice through a color sorter.

[0040] After the primary drying in step S2, the water content of the paddy rice is 35%; during the primary drying, the water content in the paddy rice can be rapidly reduced, so that the water content of the paddy rice approaches the water content most suitable for hulling the paddy rice, thereby reducing the drying time of the paddy rice.

[0041] After the secondary drying in step S3, the water content of the paddy rice is 15%; when the water content of the paddy rice is too high, the outer skin of the paddy rice is soft and easy to peel off, which can reduce the rolling pressure of the machine during hulling of the paddy rice, but the rice grains have poor strength and are more likely to produce broken rice during the rolling process; when the water content of the paddy rice is too low, the cortex of the rice grains is dry and not easy to peel off, which requires increasing the rolling pressure of the machine during hulling of the paddy rice, and thus is more likely to crush the rice grains, resulting in an increase in the broken rice rate. When the water content of the paddy rice is maintained at 15%, it can ensure a relatively high strength of the rice grains while keeping the outer skin of the paddy rice soft, thereby reducing the broken rice rate during hulling of the paddy rice.

[0042] After the screening in step S6, the polished rice is polished.

[0043] As Figures 1-3 shown in Figures 6 - 10, this example can achieve the effect of drying paddy rice once.

[0044] Since the drying device in the processing technology of organic rice includes a bracket 101, a support plate 201 is fixedly connected to the upper side of the bracket 101, a plurality of air blowers 202 are fixedly connected inside the support plate 201, a plurality of flow guide plates 203 are fixedly connected above the air blowers 202, a drying plate 204 is fixedly connected to the upper side of the support plate 201, and a plurality of air channels 205 are formed inside the drying plate 204; the paddy after impurity removal is placed on the upper side of the drying plate 204, and then the air blowers 202 are started. Thus, the chaotic air generated by the air blowers 202 becomes more uniform after passing through the flow guide plates 203, and the uniform air flows through the air channels 205 to the upper side of the drying plate 204. Then, the air flows through the paddy on the drying plate 204, and the moisture in the paddy is quickly carried away by the air, thereby achieving the effect of quickly reducing the moisture in the paddy and achieving the effect of primary drying.

[0045] As Figures 1-3 , shown in FIGS. 6 - 10, this example can achieve the effect of preventing the paddy from rolling into the air channels 205.

[0046] Since a wind shield 206 is fixedly connected to the upper side of each of the air channels 205 in the processing technology of organic rice, and the upper side of the drying plate 204 is an inclined plane sloping to the right; the wind shield 206 can change the direction of the air flowing out of the air channels 205 so that it flows out along the wind shield 206, thereby blowing the paddy to the right. At the same time, the drying plate 204 sloping to the right can make the paddy roll along its inclined plane sloping to the right. At the same time, the wind shield 206 can prevent the paddy from entering the air channels 205, thereby achieving the effect of preventing the paddy from rolling into the air channels 205.

[0047] As Figures 1-3 , shown in FIGS. 11 - 13, this example can achieve the effect of secondary drying.

[0048] In the processing technology of organic rice, a fixed seat 301 is fixedly connected to the right part of the support 101. A plurality of rotating rods 303 are rotatably connected to the fixed seat 301. A drying bin 304 is fixedly connected to the upper side of each rotating rod 303. A limiting groove 305 is integrally formed on the right side of each drying bin 304. A support rod 306 is fixedly connected to each limiting groove 305. A counterweight 307 is detachably fixedly connected to each support rod 306. The paddy after being dried once is quantitatively moved into the drying bin 304. Due to the existence of the limiting groove 305 on the right side of the drying bin 304, the paddy is squeezed on the left side of the drying bin 304, and thus the center of gravity of the paddy quality is in the left part of the drying bin 304. At this time, the counterweight 307 is hung on the support rod 306 inside the limiting groove 305. Since the counterweight 307 is supported by the support rod 306 in the limiting groove 305 on the right side of the drying bin 304, the center of gravity of the counterweight 307 is in the right part of the drying bin 304. At this time, the weight of the counterweight 307 is less than the weight of the paddy. Since the weight of the paddy with the same volume decreases when the water content decreases, by adjusting the weight of the counterweight 307, when the water content of the paddy is reduced to 15% during the drying process, the weight of the counterweight 307 is greater than the weight of the paddy. At this time, the right part of the drying bin 304 tilts to the right side with a greater gravity, thereby driving the rotating rod 303 to rotate clockwise, and then discharging the paddy with a water content of 15%, thus achieving the effect of secondary drying.

[0049] As Figures 1-3 shown in FIGS. 11-13, this example can achieve the effect of facilitating the discharge of the paddy after secondary drying.

[0050] In the processing technology of organic rice, a plurality of limiting plates 302 are fixedly connected to the left side of the fixed seat 301, and the positions of the plurality of limiting plates 302 are respectively on the left side of the corresponding rotating rod 303. When the weight of the paddy in the drying bin 304 is greater than the weight of the counterweight 307, the drying bin 304 tilts to the left side with a greater gravity. At this time, the limiting plate 302 prevents the rotating rod 303 from moving to the left, thereby preventing the rotating rod 303 from rotating counterclockwise, and further preventing the drying bin 304 from tilting to the left, thus facilitating the drying bin 304 to tilt to the right when the weight of the paddy is less than the counterweight 307, and thus achieving the effect of facilitating the discharge of the paddy after secondary drying.

[0051] When the rotating rod 303 is attached to the upper side of the limiting plate 302, since the upper side surface of the limiting plate 302 is an inclined surface, the rotating rod 303 tilts to the left by a certain angle. At the same time, the limiting plate 302 supports the rotating rod 303, so the rotating rod 303 is not perpendicular, thereby preventing the drying bin 304 from rotating due to accidental vibration or the like.

[0052] As Figures 1-5 shown in FIGS. 11-13, this example can achieve the effect of resetting the drying bin 304 after discharging the paddy.

[0053] In the processing technology of organic rice, a plurality of fixing plates 104 are fixedly connected to the bracket 101. A rotating shaft 105 is rotatably connected to each fixing plate 104. Each rotating shaft 105 is connected to the rotating rod 303 through a nylon thread. A magnetic rod 106 is fixedly connected to the right side of each rotating shaft 105. A motor I 108 is fixedly connected to each fixing plate 104. A magnetic ring 107 is fixedly connected to the left side of each motor I 108. The motor I 108 drives the magnetic ring 107 to rotate; a nylon thread is wound around the rotating shaft 105. When the rotating rod 303 rotates clockwise, the rotating shaft 105 is driven to rotate clockwise through the nylon thread, and then the nylon thread disengages from the rotating shaft 105; when the drying bin 304 discharges paddy, the corresponding motor I 108 is started, which drives the magnetic ring 107 to rotate counterclockwise, then drives the magnetic rod 106 to rotate counterclockwise, then drives the rotating shaft 105 to rotate counterclockwise, then drives the nylon thread to wind around the rotating shaft 105 again, then pulls the rotating rod 303 through the nylon thread, then drives the rotating rod 303 to reset, then drives the drying bin 304 to reset, and then realizes the effect of resetting the drying bin 304 after discharging paddy.

[0054] Since the motor I 108 drives the rotating shaft 105 through the magnetic ring 107 and the magnetic rod 106, the connection between the motor I 108 and the rotating shaft 105 is a flexible connection. When the drying bin 304 drives the rotating rod 303 to rotate, the damping received by the rotating rod 303 is low, which reduces the influence of the damping on the rotation of the drying bin 304; at the same time, by flexibly connecting the motor I 108 and the rotating rod 303 as a load, the motor I 108 will not be affected when the rotating rod 303 is driven to rotate by the drying bin 304, thus preventing the motor I 108 from being overloaded and burned out.

[0055] As Figures 1-13 shown, this example can achieve the effect of starting the corresponding motor I 108 after the drying bin 304 discharges paddy.

[0056] In the processing technology of organic rice, a storage bin 102 is fixedly connected to the right side of the bracket 101. A distance measuring device 103 is fixedly connected to the front side of the storage bin 102; after the drying bin 304 rotates, the paddy in the drying bin 304 is discharged into the storage bin 102, and then the paddy with appropriate moisture content is stored centrally; the distance measuring device 103 emits infrared rays, and when receiving the reflected infrared rays, it can judge the distance between the reflecting surface and the distance measuring device 103, and then judge which one of the plurality of drying bins 304 is discharging paddy. Connect the judgment result of the distance measuring device 103 to the plurality of motors I 108. After the drying bin 304 discharges paddy, the corresponding motor I 108 of the drying bin 304 is started through the distance measuring device 103, and then the effect of starting the corresponding motor I 108 after the drying bin 304 discharges paddy is realized.

[0057] As Figures 1-13As shown, this example can achieve the effect of adding once-dried paddy rice into the drying bin 304.

[0058] Since in the processing technology of organic rice, a diversion bin 207 is fixedly connected to the right side of the drying plate 204, a plurality of discharge ports 208 are formed on the right side of the diversion bin 207, a fixed shaft 214 is fixedly connected to the upper side of each discharge port 208, and a discharge plate 209 is rotatably connected to each fixed shaft 214; the once-dried paddy rice moves to the diversion bin 207 under the action of the wind force guided by the upper inclined surface of the drying plate 204 and the wind baffle 206, and then is diverted inside the plurality of discharge ports 208. After the drying bin 304 is reset, the discharge plate 209 is rotated, and then the once-dried paddy rice flows along the inclined surface into the drying bin 304, thus achieving the effect of adding once-dried paddy rice into the drying bin 304.

[0059] As Figures 1-13 shown, this example can achieve the effect of automatically adding an equal amount of paddy rice into the drying bin 304.

[0060] Since in the processing technology of organic rice, a motor II 213 is fixedly connected to each fixed shaft 214, each motor II 213 drives the corresponding discharge plate 209 to rotate, a control board 210 is fixedly connected to the lower side of the diversion bin 207, a plurality of switches I 211 are fixedly connected to the right side of the control board 210, and the plurality of switches I 211 are respectively connected to the corresponding motor II 213. A switch II 212 is fixedly connected to the front side of each discharge port 208, and each switch II 212 is respectively connected to the corresponding motor II 213; after the drying bin 304 is reset, the left side of the drying bin 304 presses the switch I 211 on the control board 210, thereby starting the corresponding motor II 213, which drives the discharge plate 209 to rotate, thus achieving the effect of automatically adding once-dried paddy rice into the drying bin 304; after the discharge plate 209 rotates for a certain time, it contacts the switch II 212, which drives the motor II 213 to reverse, and then the discharge plate 209 closes. Thus, the opening time of each discharge plate 209 is the same, and an equal amount of paddy rice can be added into the drying bin 304, thereby achieving the effect of automatically adding an equal amount of paddy rice into the drying bin 304.

Claims

1. A processing technology for organic rice, characterized in that: This process includes the following steps: S1: Remove impurities from the harvested paddy rice; S2: Put the paddy rice after impurity removal into a drying device for primary drying; S3: Conduct secondary drying through the drying device after primary drying; S4: Hull the dried paddy rice to obtain brown rice, and separate the brown rice from the rice husks; S5: Put the brown rice into a rice milling machine to remove the bran and obtain polished rice; S6: Classify and screen the polished rice through a color sorter; The drying device includes a support frame (101), a support plate (201) is fixedly connected to the upper side of the support frame (101), a plurality of blowers (202) are fixedly connected inside the support plate (201), a plurality of flow guide plates (203) are fixedly connected above the blowers (202), a drying plate (204) is fixedly connected to the upper side of the support plate (201), a plurality of air grooves (205) are formed inside the drying plate (204), a wind shield (206) is arranged on the upper side of each air groove (205), and the upper side of the drying plate (204) is set as an inclined plane sloping to the right; A fixed seat (301) is fixedly connected to the right part of the support frame (101), a plurality of rotating rods (303) are rotatably connected to the fixed seat (301), a plurality of limiting plates (302) are respectively arranged on the left sides of the corresponding rotating rods (303), a drying bin (304) is fixedly connected to the upper side of each rotating rod (303), a limiting groove (305) is integrally formed on the right side of each drying bin (304), a support rod (306) is fixedly connected inside each limiting groove (305), a counterweight block (307) is detachably fixedly connected to each support rod (306), and a plurality of limiting plates (302) are fixedly connected to the left side of the fixed seat (301).

2. The processing technology for organic rice according to claim 1, characterized in that: In step S2, the water content of the paddy rice after primary drying is 30%-40%.

3. The processing technology for organic rice according to claim 1, characterized in that: In step S3, the water content of the paddy rice after secondary drying is 15%-17%.

4. The processing technology for organic rice according to claim 1, characterized in that: In step S6, the polished rice is polished after screening.

5. The processing technology for organic rice according to claim 1, characterized in that: A plurality of fixing plates (104) are fixedly connected to the support frame (101), a rotating shaft (105) is rotatably connected to each fixing plate (104), each rotating shaft (105) is connected to the rotating rod (303) through a nylon thread, a magnetic rod (106) is fixedly connected to the right side of each rotating shaft (105), a motor I (108) is fixedly connected to each fixing plate (104), a magnetic ring (107) is fixedly connected to the left side of each motor I (108), and the motor I (108) drives the magnetic ring (107) to rotate.

6. The processing technology for organic rice according to claim 2, characterized in that: A storage bin (102) is fixedly connected to the right side of the support frame (101), and a distance measuring device (103) is fixedly connected to the front side of the storage bin (102).

7. The processing technology for organic rice according to claim 1, characterized in that: A diversion bin (207) is fixedly connected to the right side of the drying plate (204), a plurality of discharge ports (208) are formed on the right side of the diversion bin (207), a fixed shaft (214) is fixedly connected to the upper side of each discharge port (208), and a discharge plate (209) is rotatably connected to each fixed shaft (214).

8. The processing technology for organic rice according to claim 7, characterized in that: A motor II (213) is fixedly connected to each of the fixed shafts (214). Each motor II (213) drives the corresponding discharge plate (209) to rotate. A control board (210) is fixedly connected to the lower side of the shunt bin (207). A plurality of switches I (211) are fixedly connected to the right side of the control board (210). The plurality of switches I (211) are respectively connected to the corresponding motors II (213). A switch II (212) is fixedly connected to the front side of each discharge port (208). Each switch II (212) is respectively connected to the corresponding motor II (213).

Citation Information

Patent Citations

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    CN109225394A

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    CN205431865U