Germ-remaining preboiled rice flour preparation process and device based on water milling technology

Abstract

The invention discloses a process and device for preparing germ-remaining preboiled rice noodles based on a water milling technology, and relates to the technical field of rice noodle production.The device comprises a treatment box and water milling equipment, the upper end face of the treatment box is fixedly connected with a feeding hopper, the inner wall of the feeding hopper is rotationally connected with a conveying barrel, and a conveying groove is formed in the treatment box; the germ-remaining preboiled rice screening device has the advantages that air flow blown out of the air bellow can separate germ-remaining preboiled rice and brown rice cortex in raw materials, meanwhile, the germ-remaining preboiled rice which does not meet the particle size requirement can be screened out by controlling the air volume of the air bellow, the particle size of the germ-remaining preboiled rice is made to be uniform and consistent, and the germ-remaining preboiled rice screening device is suitable for large-scale popularization and application. The purity of the preboiled rice with the remained germs is guaranteed, the product quality is improved, in the rice milling process, a large amount of dust can be generated when the preboiled rice with the remained germs is crushed, the dust can be adsorbed or settled by water due to the existence of water in water milling rice milling, and flying of the dust in the air is reduced to a great extent.

Description

Technical Field

[0001] The invention relates to the technical field of rice noodle production, in particular to a preparation process and a device of rice noodle with germ-retained parboiled rice based on a water-milling technology. Background Art

[0002] As consumers' health awareness continues to improve, their nutritional requirements for food are also increasing. Parboiled rice noodles with embryos can meet consumers' demand for nutritious and healthy food, and have great development potential in the market. Parboiled rice is made by cleaning rice, soaking, steaming, drying and other treatments before grinding. During the processing, the rice is soaked and steamed, so that the nutrients inside the rice are well preserved, especially some water-soluble vitamins and minerals, which will transfer from the outer layer to the inside. At the same time, the starch is also partially gelatinized, which makes the rice noodles softer and more elastic when processed into rice noodles. The processing method of parboiled rice can also enhance the storage resistance of rice and reduce the invasion of microorganisms and pests, which provides a guarantee for the long-term stable supply of rice noodles raw materials.

[0003] At present, some processing companies of parboiled rice with germ retained still use more traditional manual screening or semi-automatic screening equipment, which has low screening efficiency and cannot meet the needs of large-scale production. In addition, manual screening has problems such as strong subjectivity and high misjudgment rate, making it difficult to ensure the consistency of screening quality. Therefore, we propose a preparation process and device for parboiled rice flour with germ retained based on water milling technology. Summary of the invention

[0004] The invention aims to provide a process and a device for preparing rice flour of germ-retained parboiled rice based on a water-milling technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a preparation process of embryo-retained steamed rice flour based on water-milling technology and a device thereof, comprising a processing box and a water-milling device, the upper end surface of the processing box is fixedly connected with a feed hopper, the inner wall of the feed hopper is rotatably connected with a feed cylinder, a feed trough is provided inside the processing box, a transition box is fixedly connected with the left side surface of the processing box, one end of the feed trough is connected with the interior of the transition box, an air supply pipe is fixedly connected with the upper end surface of the transition box, one end of the air supply pipe is fixedly connected with the side wall of the processing box, a shunt block is fixedly connected with the inner wall of the feed trough, the side wall of the shunt block and the inner wall of the processing box are jointly fixedly connected with a second dust-proof net, the inner wall of the processing box is fixedly connected with a first dust-proof net, the inner wall of the processing box is fixedly connected with a bellows, the bottom end of the feed hopper passes through the inner wall of the processing box and is connected with the feed trough, and a material receiving box is slidably connected with the inner wall of the transition box.

[0006] As a further solution of the present invention: a drying cylinder is installed at the discharge end of the water mill equipment, a filter cylinder is fixedly connected inside the drying cylinder, the inner wall of the filter cylinder is rotatably connected with a spiral blade, a second servo motor is fixedly connected to the side wall of the drying cylinder, the output end of the second servo motor passes through the inner wall of the drying cylinder and is fixedly connected to one end of the spiral blade, a drying box is fixedly connected to the surface of the drying cylinder, a drain pipe is fixedly connected to the surface of the drying cylinder, and one end of the drain pipe is connected to the inside of the drying cylinder.

[0007] As a further solution of the present invention: a first servo motor is fixedly connected to the front of the feed hopper, and an output end of the first servo motor passes through the inner wall of the feed hopper and is fixedly connected to the center of the feed cylinder, and the side wall of the feed cylinder is in contact with the inner wall of the feed hopper.

[0008] As a further solution of the present invention: a connecting pipe is fixedly connected to the front of the processing box, and the bottom end of the connecting pipe is connected to the feed end of the water mill equipment.

[0009] As a further solution of the present invention: both ends of the gas pipeline are respectively connected to the inside of the processing box and the transition box, and both ends of the gas pipeline are provided with dustproof nets.

[0010] As a further solution of the present invention: the shape of the feed trough is provided with two bends, and each bend is transitioned through an arc.

[0011] As a further solution of the present invention: the air outlet end of the bellows faces the first dustproof net, and the connection between the air supply pipe and the processing box is located on the right side of the air inlet end of the bellows.

[0012] As a further solution of the present invention: a controller is fixedly connected to the right side surface of the processing box, and the output end of the controller is electrically connected to the input end of the bellows.

[0013] In addition, the present invention also provides a process for preparing rice flour of embryo-retained parboiled rice based on water-milling technology, comprising the following steps:

[0014] S1, will clean and boil and dry to the paddy that water content is 15% and add in the feed hopper, start the first servomotor and drive the feed tube to rotate the paddy quantitatively delivered to the treatment box, the paddy of agglomeration falls to the feed trough inwall and can be broken up, at this moment, start the bellows and blow in the feed trough, airflow is shunted into two strands through the splitter block, one strand is blown into the feed trough along the splitter block top, airflow can scatter and screen the paddy that falls, airflow can drive the light component brown rice cortex that can blow to move upwards along the feed trough, finally enter in the transition box and settle, airflow is re-entering the treatment box by the air delivery pipe and continues to work;

[0015] The recombinant portion that S2, airflow can't blow and stays the embryo parboiled rice then falls in the connecting pipe of processing box bottom along the feed chute downwards, and simultaneously, another airflow then can carry out secondary screening to the embryo parboiled rice after screening along below the diverter block, can improve the separation degree of embryo parboiled rice and brown rice cortex;

[0016] S3, the screened parboiled rice with embryo left slides along the connecting pipe to the water mill for rice milling, the rice slurry formed after rice milling flows into the filter cylinder, and the drying box and the second servo motor are started at the same time, the drying box can increase the temperature of the drying cylinder to dry the rice slurry, the second servo motor can drive the rice slurry forward through the spiral blade, the water in the rice slurry can be filtered through the filter cylinder, and the filtrate is discharged through the drain pipe, and finally, the parboiled rice flour with embryo left obtained by drying is discharged through the discharge hopper of the drying cylinder.

[0017] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The airflow blown out by the bellows of the present invention can separate the parboiled rice with embryo and the cortex of brown rice in the raw material. At the same time, by controlling the air volume of the bellows, the parboiled rice with embryo that does not meet the particle size requirement can be screened out, so that the particle size of the parboiled rice with embryo is uniform, the purity of the parboiled rice with embryo is ensured, and the quality of the product is improved. In the rice milling process, a large amount of dust is generated when the parboiled rice with embryo is crushed. Due to the presence of water in water-milling rice milling, the dust will be adsorbed or settled by the water, which greatly reduces the flying of dust in the air.

[0019] 2. The present invention can shunt the airflow blown out of the bellows through the shunt block, and the two airflows can screen the embryo-retained parboiled rice twice respectively, which can improve the screening effect of the embryo-retained parboiled rice and avoid the waste of raw materials caused by incomplete screening of the embryo-retained parboiled rice;

[0020] 3. The present invention can realize the conveying of raw materials in the quantitative box and the processing box by controlling the rotation speed of the feed tube, which can prevent a large amount of raw materials from entering the processing box at the same time, resulting in the inability to perform normal screening. At the same time, the feed tube can also prevent the airflow in the feed trough from driving the embryo-retained parboiled rice to be discharged through the feed hopper.

[0021] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the feed hopper in an embodiment of the present invention;

[0024] Figure 3 It is a schematic cross-sectional structural diagram of a processing box in an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the feeding cylinder in an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the cross-sectional structure of a drying drum in an embodiment of the present invention.

[0027] In the figure: 1. processing box; 2. transition box; 3. air pipe; 4. feed hopper; 5. receiving box; 6. connecting pipe; 7. feed cylinder; 8. first servo motor; 9. diverter block; 10. first dustproof net; 11. second dustproof net; 12. feed trough; 13. bellows; 14. controller; 15. water mill equipment; 16. drying cylinder; 17. drying box; 18. drain pipe; 19. second servo motor; 20. spiral blade; 21. filter cylinder. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0029] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Please refer to the attached Figure 1 -Attached Figure 5The invention discloses a process for preparing rice flour with embryo-retained parboiled rice based on water-milling technology and a device thereof, comprising a processing box 1 and a water-milling device 15, wherein the upper end surface of the processing box 1 is fixedly connected with a feed hopper 4, the inner wall of the feed hopper 4 is rotatably connected with a feed cylinder 7, a feed trough 12 is provided inside the processing box 1, a transition box 2 is fixedly connected with the left side surface of the processing box 1, one end of the feed trough 12 is connected with the transition box 2, an air delivery pipe 3 is fixedly connected with the upper end surface of the transition box 2, and dustproof nets are arranged at both ends of the air delivery pipe 3, and the dustproof nets can reduce dust from entering the air delivery pipe 3, thereby reducing Product residue leads to waste of raw materials. One end of the air delivery pipe 3 is fixedly connected to the side wall of the processing box 1. The inner wall of the feeding trough 12 is fixedly connected with a diverter block 9. The diverter block 9 can cut the airflow blown out by the bellows 13. The two airflows after cutting can screen the rice noodles twice, which can improve the purity of the rice noodles. The side wall of the diverter block 9 and the inner wall of the processing box 1 are jointly fixedly connected with a second dustproof net 11. The inner wall of the processing box 1 is fixedly connected with a first dustproof net 10. The inner wall of the processing box 1 is fixedly connected with a bellows 13. By changing the wind force of the bellows 13, the purity of the rice noodles can be improved. The invention can screen rice noodles of various particle sizes and can adapt to rice noodles of various grinding degrees. The bottom end of the feed hopper 4 penetrates the inner wall of the processing box 1 and is connected to the feeding trough 12. The inner wall of the transition box 2 is slidably connected with a receiving box 5. The front of the processing box 1 is fixedly connected with a connecting pipe 6. The bottom end of the connecting pipe 6 is connected to the feeding end of the water mill 15. The two ends of the air delivery pipe 3 are respectively connected to the inside of the processing box 1 and the transition box 2. Dustproof nets are arranged at both ends of the air delivery pipe 3. The shape of the feeding trough 12 is provided with two bends, and each bend is passed through a circular Arc transition, the feed trough 12 is bent twice, which can increase the residence time of the steamed rice with embryo in the feed trough 12. At the same time, the steamed rice with embryo will fall onto the inner wall of the feed trough 12 each time it passes through the bend, which can break up the clumped steamed rice with embryo, and improve the screening effect of the steamed rice with embryo. The air outlet end of the bellows 13 faces the first dustproof net 10, and the connection between the air supply pipe 3 and the processing box 1 is located on the right side of the air inlet end of the bellows 13. The right side of the processing box 1 is fixedly connected with a controller 14, and the output end of the controller 14 is electrically connected to the input end of the bellows 13.

[0031] In the first embodiment, a drying cylinder 16 is installed at the discharge end of the water mill 15, a filter cylinder 21 is fixedly connected inside the drying cylinder 16, a spiral blade 20 is rotatably connected to the inner wall of the filter cylinder 21, a second servo motor 19 is fixedly connected to the side wall of the drying cylinder 16, an output end of the second servo motor 19 penetrates the inner wall of the drying cylinder 16 and is fixedly connected to one end of the spiral blade 20, a drying box 17 is fixedly connected to the surface of the drying cylinder 16, a drain pipe 18 is fixedly connected to the surface of the drying cylinder 16, and one end of the drain pipe 18 is connected to the inside of the drying cylinder 16;

[0032] Specifically, when the spiral blades 20 drive the rice slurry to move, the rice slurry can be squeezed to accelerate the dehydration speed of the rice noodles and increase the drying rate. When the spiral blades 20 rotate, the clumped rice noodles can be broken up to avoid the rice noodles clumping and causing incomplete drying.

[0033] In the second embodiment, a first servo motor 8 is fixedly connected to the front of the feed hopper 4, and an output end of the first servo motor 8 passes through the inner wall of the feed hopper 4 and is fixedly connected to the center of the feeding cylinder 7, and the side wall of the feeding cylinder 7 is in contact with the inner wall of the feed hopper 4;

[0034] Specifically, the first servo motor 8 can drive the feed barrel 7 to rotate and quantitatively deliver the raw materials to the processing box 1. The feed amount of the raw materials can be controlled by adjusting the rotation speed of the feed barrel 7, which can prevent a large amount of raw materials from entering the feed trough 12 at the same time, resulting in the inability to screen the raw materials normally. At the same time, the feed barrel 7 can prevent the airflow in the processing box 1 from blowing out the embryo-retained steamed rice through the feed hopper 4.

[0035] Working principle:

[0036] First, remove impurities in the rice, such as stones, soil and rice husk fragments, and remove incomplete and damaged rice. Then soak the treated rice in warm water at 40°C for 4 hours to allow it to absorb enough water. Then steam the soaked rice at 120°C for 20 minutes to gelatinize the starch in the rice and kill possible microorganisms and pests. Then dry the steamed rice to reduce its moisture content to 15% to obtain brown rice. Then cool the brown rice to room temperature and hull it. Then add the brown rice into the feed hopper 4. Then, the staff starts the first servo motor 8 to drive the feed drum 7 to rotate. The feed drum 7 rotates to separate the cortex and The steamed rice with embryo is quantitatively conveyed to the processing box 1. The feeding of the cortex and the steamed rice with embryo can be achieved by controlling the rotation speed of the feeding cylinder 7, which can prevent a large amount of cortex and steamed rice with embryo from entering the processing box 1 and making it impossible to screen. When the cortex and the steamed rice with embryo enter the feeding trough 12, the staff starts the bellows 13 through the controller 14, and the bellows 13 can blow air into the feeding trough 12. The airflow can be divided into two streams under the cutting of the diverter block 9. One stream can pass through the top of the diverter block 9 to perform the initial screening on the cortex and steamed rice with embryo that slide down along the feeding trough 12, and the airflow can drive the light component cortex to move upward along the feeding trough 12 to the transition box 2, and the light component cortex enters After entering the transition box 2, the steamed rice with embryo left in the transition box 2 is precipitated downward into the material receiving box 5 under the action of gravity, and the airflow re-enters the processing box 1 through the air delivery pipe 3 to work. The recombinant steamed rice with embryo left in the transition box 2 is less affected by the airflow and continues to slide down along the delivery trough 12. Then, another airflow can perform secondary screening on the steamed rice with embryo left in the transition box 2 and blow the remaining light components in the steamed rice with embryo left upward. The screened steamed rice with embryo left in the transition box 2 is slid down along the connecting pipe 6 to the water mill 15 for rice milling. The rice slurry formed after rice milling flows into the filter cylinder 21, and the drying box 17 and the second servo motor 19 are started at the same time. The drying box 17 can continuously feed the steamed rice with embryo left in the drying cylinder 16. Blowing in hot air can increase the temperature of the drying cylinder 16 to dry the rice slurry. The second servo motor 19 can drive the rice slurry to move forward through the spiral blade 20. At the same time, the overfrequency vibration generated by the ultrasonic vibrator installed inside the spiral blade 20 can loosen the agglomerated rice slurry and make the rice slurry remaining on the spiral blade 20 fall off, so that the rice slurry can be smoothly transported in the filter cylinder 21. The moisture in the rice slurry can be filtered through the filter cylinder 21, and the filtrate is discharged through the drain pipe 18. Finally, the dried parboiled rice flour with embryo retained is discharged through the discharging hopper of the drying cylinder 16. At this point, the whole work flow ends.

[0037] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0040] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.

Claims

1. A rice flour device for producing embryo-retained parboiled rice based on water-milling technology, comprising a processing box (1) and a water-milling device (15), characterized in that: The upper end surface of the processing box (1) is fixedly connected to a feed hopper (4), and the inner wall of the feed hopper (4) is rotatably connected to a feed cylinder (7). The interior of the processing box (1) is provided with a feed trough (12). The left side surface of the processing box (1) is fixedly connected to a transition box (2), and one end of the feed trough (12) is connected to the interior of the transition box (2). The upper end surface of the transition box (2) is fixedly connected to an air delivery pipe (3), and one end of the air delivery pipe (3) is fixedly connected to the side wall of the processing box (1). The inner wall of the feed trough (12) is fixedly connected to a diverter block (9), the side wall of the diverter block (9) and the inner wall of the processing box (1) are fixedly connected to a second dustproof net (11), the inner wall of the processing box (1) is fixedly connected to a first dustproof net (10), the inner wall of the processing box (1) is fixedly connected to a bellows (13), the bottom end of the feed hopper (4) passes through the inner wall of the processing box (1) and is connected to the feed trough (12), and the inner wall of the transition box (2) is slidably connected to a receiving box (5).

2. A rice flour device for parboiled rice with embryo retained based on water-milling technology according to claim 1, characterized in that: A drying cylinder (16) is installed at the discharge end of the water mill equipment (15), a filter cylinder (21) is fixedly connected inside the drying cylinder (16), the inner wall of the filter cylinder (21) is rotatably connected with a spiral blade (20), a second servo motor (19) is fixedly connected to the side wall of the drying cylinder (16), the output end of the second servo motor (19) passes through the inner wall of the drying cylinder (16) and is fixedly connected to one end of the spiral blade (20), a drying box (17) is fixedly connected to the surface of the drying cylinder (16), a drain pipe (18) is fixedly connected to the surface of the drying cylinder (16), and one end of the drain pipe (18) is connected to the inside of the drying cylinder (16).

3. A rice flour device for parboiled rice with embryo retained based on water-milling technology according to claim 1, characterized in that: A first servo motor (8) is fixedly connected to the front of the feed hopper (4), and an output end of the first servo motor (8) passes through the inner wall of the feed hopper (4) and is fixedly connected to the center of the feed cylinder (7), and the side wall of the feed cylinder (7) is in contact with the inner wall of the feed hopper (4).

4. A rice flour device for preparing parboiled rice with embryos retained based on water-milling technology according to claim 1, characterized in that: A connecting pipe (6) is fixedly connected to the front of the processing box (1), and the bottom end of the connecting pipe (6) is connected to the feed end of the water mill equipment (15).

5. A rice flour device for preparing parboiled rice with embryos retained based on water-milling technology according to claim 1, characterized in that: Both ends of the air delivery pipe (3) are respectively connected to the interior of the processing box (1) and the transition box (2), and both ends of the air delivery pipe (3) are provided with dustproof nets.

6. A rice flour device for preparing parboiled rice with embryos retained based on water-milling technology according to claim 1, characterized in that: The shape of the feed trough (12) is provided with two bends, and each bend is transitioned through an arc.

7. A rice flour device for preparing parboiled rice with embryo retained based on water-milling technology according to claim 1, characterized in that: The air outlet end of the wind box (13) faces the first dustproof net (10), and the connection between the air supply pipe (3) and the processing box (1) is located on the right side of the air inlet end of the wind box (13).

8. A rice flour device for parboiled rice with embryo retained based on water milling technology according to claim 1, characterized in that: A controller (14) is fixedly connected to the right side of the processing box (1), and the output end of the controller (14) is electrically connected to the input end of the wind box (13).

9. A preparation process for a rice flour device of a germ-free parboiled rice based on a water-milling technology applicable to any one of claims 1-8, characterized in that: S1, the paddy that is dried to a water content of 15% after cleaning and boiling is added into the feed hopper (4), the first servomotor (8) is started to drive the feed tube (7) to rotate and the paddy is quantitatively transported to the processing box (1), the paddy that is agglomerated falls to the inner wall of the feed trough (12) and can be broken up, at this time, the bellows (13) is started to blow air into the feed trough (12), the airflow is shunted into two strands through the diverter block (9), one strand is blown into the feed trough (12) along the top of the diverter block (9), the airflow can scatter and screen the fallen paddy, the airflow can drive the light component brown rice cortex that can be blown to move upwards along the feed trough (12), and finally enter the transition box (2) for sedimentation, and the airflow re-enters the processing box (1) through the air delivery pipe (3) and continues to work; The recombinant portion of the steamed rice with embryo that cannot be blown by the airflow falls downwards along the feed trough (12) into the connecting pipe (6) at the bottom of the treatment box (1). Meanwhile, another airflow carries out secondary screening to the steamed rice with embryo after screening along the bottom of the diverter block (9), thereby improving the separation degree of the steamed rice with embryo and the brown rice cortex; S3, the screened parboiled rice with embryo retained slides along the connecting pipe (6) to the water mill (15) for rice milling, and the rice slurry formed after the rice milling flows into the filter cylinder (21), and the drying box (17) and the second servo motor (19) are started at the same time. The drying box (17) can increase the temperature of the drying cylinder (16) to dry the rice slurry, and the second servo motor (19) can drive the rice slurry to move forward through the spiral blade (20), and the water in the rice slurry can be filtered through the filter cylinder (21), and the filtrate is discharged through the drain pipe (18). Finally, the rice flour of the parboiled rice with embryo retained obtained by drying is discharged through the discharge hopper of the drying cylinder (16).

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