An automatic cleaning system for deep processing of rice

Abstract

This invention discloses an automatic cleaning system for deep rice processing, relating to the field of rice deep processing technology. The system includes a cleaning tank with an inlet and an outlet located on the left and right sides, respectively. The middle section of the cleaning tank, from left to right, comprises a rinsing zone, a separation zone, and a purification zone. The cleaning tank is equipped with a conveying mechanism and multiple aeration pipe groups. The upper part of the cleaning tank has a spraying mechanism located in the rinsing and purification zones, and an auxiliary mechanism located in the separation zone. A sewage discharge mechanism is symmetrically arranged on the front and rear walls of the cleaning tank. The advantages are: this invention performs efficient and continuous cleaning of rice in three stages—rice rinsing, impurity separation, and spray purification—with water depth gradually decreasing. This not only allows the rice sufficient time and depth for thorough immersion, ensuring even cleaning and improving cleaning efficiency, but also promptly removes impurities to prevent secondary contamination and improves the space utilization of the equipment.

Description

Technical Field

[0001] This invention relates to the field of rice deep processing technology, and in particular to an automatic cleaning system for rice deep processing. Background Technology

[0002] Deep processing of rice refers to the process of using paddy rice or ordinary white rice as raw materials and processing them with physical, chemical or biological technologies to produce new types of rice products with high added value, high nutrition, stronger functionality or altered morphological characteristics. In modern deep processing of rice, in order to remove impurities on the surface of rice and ensure the purity of the product, it is necessary to carry out processes such as washing, wetting and dehydrating the raw rice.

[0003] Currently, the most common automatic rice washing equipment for deep processing is the conveyor belt rice washing machine. It uses water flow impact and bubble bursting to separate and remove dust, bran, and impurities adhering to the surface of the rice grains. The working process involves continuous feeding, a combination of bubble and spray washing, and conveyor discharge. However, during continuous washing, the conveyor equipment is usually horizontal, and to ensure thorough cleaning, it is typically continuous and long, occupying a large space. Secondly, the floating rice grains at the beginning of feeding cannot be completely submerged by the water flow, making it difficult to wash away surface dust and impurities effectively and promptly. During bubble washing, some light impurities that have been detached may be repeatedly impacted by the spray water and pushed underwater, failing to be discharged in time and continuing to adhere to the surface of the discharged rice, causing secondary pollution. Furthermore, in areas with high aeration, dense bubbles surge upwards, violently pushing the rice grains upwards to the sides, leading to some rice layers accumulating around the edges and uneven thickness in certain areas, resulting in insufficient cleaning.

[0004] Therefore, in order to improve space utilization and cleaning effect, this invention provides an automatic cleaning system for deep processing of rice. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing an automatic cleaning system for deep processing of rice.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cleaning system for deep processing of rice, including a cleaning tank, wherein the cleaning tank includes an inlet and an outlet respectively disposed on the left and right sides, and the middle part of the cleaning tank is provided with a rinsing zone, a separation zone and a purification zone from left to right.

[0007] The cleaning tank is equipped with a conveying mechanism and multiple aeration pipe groups. The upper part of the cleaning tank is equipped with a spraying mechanism located in the rinsing zone and the purification zone, and an auxiliary mechanism located in the separation zone. Sewage discharge mechanisms are symmetrically arranged on the front and rear walls of the cleaning tank.

[0008] Rice is conveyed in a washing tank in a stepped manner from left to right via a conveyor mechanism, passing through a rinsing zone, a separation zone, and a purification zone in sequence. In the rinsing zone, the rice enters the rinsing stage, where corresponding spray mechanisms and aeration pipe groups flush the light, floating rice grains underwater, allowing the rice to be fully soaked in deep water. In the separation zone, the rice enters the impurity separation stage, where corresponding aeration pipe groups, sewage discharge mechanisms, and auxiliary mechanisms work together to float impurities with bubbles and lift the rice in a stepped manner, deeply cleaning the rice and light impurities and promoting the timely removal of impurities. In the purification zone, the rice enters the spray purification stage, where corresponding spray mechanisms rinse and purify the rice lifted off the water surface. Through the rice rinsing stage, impurity separation stage, and spray purification stage, the rice undergoes a highly efficient stepped cleaning operation with water depth decreasing from deep to shallow.

[0009] In the aforementioned automatic cleaning system for deep rice processing, the conveying mechanism includes a drive wheel set, a driven wheel set, and a motor symmetrically arranged on the cleaning tank. The drive wheel set and the driven wheel set are both equipped with a conveying component. The drive wheel set drives the conveying component to convey rice from left to right, and the driven wheel set guides the conveying component to a stepped conveying trajectory.

[0010] In the aforementioned automatic cleaning system for deep rice processing, the drive wheel assembly includes three drive wheels rotatably connected to the front and rear side walls of the cleaning tank. The three drive wheels are respectively rotatably connected to the lower left side, the upper right side, and the lower right side of the cleaning tank. All three drive wheels are driven by a motor to rotate clockwise.

[0011] In the aforementioned automatic cleaning system for deep rice processing, the conveying component includes multiple mesh belt segments that are hinged together end to end, and several air bubble passages are evenly provided on the mesh belt segments. The driven wheel assembly includes multiple guide wheels that are rotatably connected to the front and rear side walls of the cleaning tank, and the guide wheels limit the mesh belt segments.

[0012] In the aforementioned automatic cleaning system for deep rice processing, multiple aeration pipe groups are distributed in the rinsing zone and the separation zone, and the aeration pipe groups are distributed parallel to the stepped sections of the conveying components. Each aeration pipe group consists of a main air pipe and multiple aeration branch pipes symmetrically connected to the side wall of the main air pipe. The spraying mechanism includes a water pipe installed in the front and back direction on the cleaning tank, and multiple spray heads evenly distributed on the water pipe.

[0013] In the aforementioned automatic cleaning system for deep rice processing, the front and rear side walls of the cleaning tank are both double-layered hollow detachable structures. The sewage discharge mechanism includes overflow channels symmetrically opened on the front and rear inner walls of the cleaning tank. The height of the overflow channels is lower than the high position of the right side of the stepped section of the conveying component, and the height of the overflow channels is consistent with the top height of the discharge port.

[0014] In the aforementioned automatic cleaning system for deep rice processing, a sewage discharge channel is provided in the front and rear side walls of the double-layered hollow cleaning tank. The upper part of the sewage discharge channel is connected to the overflow tank, and a sewage discharge port is opened in the lower part of the left side wall of the cleaning tank. The left part of the sewage discharge channel is connected to the sewage discharge port, and the bottom of the sewage discharge channel slopes from the upper right to the lower left.

[0015] In the above-mentioned automatic cleaning system for deep rice processing, the auxiliary mechanism includes a sewage discharge component and a partition plate installed on the cleaning tank. The sewage discharge component is equipped with a brush roller and includes two water pipes symmetrically installed on the cleaning tank. The middle of the water pipes symmetrically connects to two flushing heads. A support rod assembly located between the two water pipes symmetrically connected to the cleaning tank is fixedly connected to the cleaning tank.

[0016] In the aforementioned automatic cleaning system for deep rice processing, the support rod assembly includes two support rods symmetrically installed on the left and right sides. The middle of the support rods is rotatably connected to a paddle corresponding to the flushing head, and the left and right corresponding paddles are fixedly connected to a drain roller.

[0017] In the above-mentioned automatic cleaning system for deep rice processing, the bottom walls of two support rods are symmetrically and fixedly connected with support frames in the shape of an inverted convex character. A brush roller is rotatably connected between the two support frames, and the brush roller is located above the horizontal section of the conveying component. A partition is fixedly connected to the front and rear walls of the cleaning tank and is located between the separation zone and the purification zone.

[0018] Compared with existing technologies, the advantages of this invention are as follows: This invention performs a highly efficient and continuous cleaning operation on rice through three stages: rice rinsing stage, impurity separation stage, and spray purification stage, with water depth gradually decreasing. This not only improves the cleaning effect and removes impurities in a timely manner to prevent secondary pollution, but also improves the space utilization of the equipment.

[0019] 1. During the rice rinsing stage, the conveyor component is located in a deeper part of the rinsing area. In conjunction with the water flow impact force of the spray head, a small portion of the light, floating rice grains are impacted into the water. This prevents the floating rice grains from not being completely submerged by the water flow, as the dust and impurities on their surface are difficult to be effectively washed away by the air bubbles. This ensures that the rice grains are completely submerged in the water, allowing the rice sufficient time and depth to be fully moistened. The water penetrates into the microscopic crevices on the surface of the rice grains and the junction between the rice grains and impurities, making the attached impurities loose and easy to peel off by the air bubbles.

[0020] 2. During the impurity separation stage, the rice grains are gradually tilted from their horizontal position by the lifting of the conveying components. This gradually raises the turbid wastewater away from the bottom towards the upper layer of clean water. The tilting of the conveying components, combined with the physical friction of the air bubbles and brush rollers in the aeration tube group, further cleans the rice grains. This helps to turn over the bottom layer of rice, improve the problem of accumulation around the edges and uneven thickness of the rice layer in some areas, and make the cleaning thorough and uniform. In addition, the front and rear discharge rollers accelerate the discharge of light impurities, preventing the separated impurities from re-adhering to the surface of the clean rice grains and causing secondary pollution.

[0021] 3. During the spray purification stage, the baffle blocks impurities on the water surface in the left separation zone, and the spray head sprays the rice to rinse away residual wastewater and a few impurities on the surface of the rice, further improving the cleaning and purification effect. Attached Figure Description

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure.

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the front sidewall of the cleaning tank.

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the cleaning tank.

[0026] Figure 4 This is a schematic diagram of the transmission component.

[0027] Figure 5 This is a partial structural diagram of the auxiliary mechanism.

[0028] Figure 6 This is a schematic diagram of the auxiliary mechanism from below.

[0029] In the diagram: 1. Cleaning tank; 11. Feed inlet; 12. Rinsing area; 13. Separation area; 14. Purification area; 15. Discharge outlet; 2. Conveying mechanism; 21. Conveying assembly; 211. Mesh belt section; 212. Bubble passage inlet; 22. Drive wheel assembly; 23. Driven wheel assembly; 24. Motor; 3. Aeration pipe assembly; 4. Spraying mechanism; 41. Water pipe one; 42. Spray head; 5. Sewage discharge mechanism; 51. Overflow trough; 52. Sewage discharge channel; 53. Sewage outlet; 6. Auxiliary mechanism; 61. Sewage discharge assembly; 611. Water pipe two; 612. Flushing head; 613. Support rod assembly; 614. Paddle blades; 615. Sewage discharge roller; 62. Brush roller; 63. Baffle plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figures 1 to 3 An automatic cleaning system for deep processing of rice includes a cleaning tank 1. The cleaning tank 1 includes an inlet 11 and an outlet 15 respectively located on the left and right sides. The middle part of the cleaning tank 1 is provided with a rinsing zone 12, a separation zone 13 and a purification zone 14 arranged from left to right.

[0032] Reference Figures 1 to 3 The cleaning tank 1 is equipped with a conveying mechanism 2 and multiple aeration pipe groups 3. The upper part of the cleaning tank 1 is equipped with a spraying mechanism 4 located in the rinsing zone 12 and the purification zone 14, and an auxiliary mechanism 6 located in the separation zone 13. The front and rear walls of the cleaning tank 1 are symmetrically equipped with a sewage discharge mechanism 5.

[0033] Reference Figures 1 to 4 The conveying mechanism 2 includes a drive wheel assembly 22, a driven wheel assembly 23, and a motor 24 symmetrically arranged on the washing tank 1. The drive wheel assembly 22 and the driven wheel assembly 23 are jointly provided with a conveying component 21. The drive wheel assembly 22 drives the conveying component 21 to convey rice from left to right, and the driven wheel assembly 23 guides the conveying component 21 to a stepped conveying trajectory. The drive wheel assembly 22 includes three drive wheels rotatably connected to the front and rear side walls of the washing tank 1. The three drive wheels are respectively rotatably connected to the lower left side, the upper right side, and the lower right side of the washing tank 1. All three drive wheels are driven to rotate clockwise by the motor 24. The conveying component 21 includes multiple mesh belt segments 211 that are hinged together end to end. Several air bubble passages 212 are evenly opened on the mesh belt segments 211. The driven wheel assembly 23 includes multiple guide wheels rotatably connected to the front and rear side walls of the washing tank 1. The guide wheels limit the mesh belt segments 211.

[0034] Reference Figures 2 to 3 Multiple aeration pipe groups 3 are distributed in the rinsing zone 12 and the separation zone 13. The aeration pipe groups 3 are distributed in parallel with the stepped section of the conveying component 21. Each aeration pipe group 3 consists of a main vent pipe and multiple aeration branch pipes symmetrically connected to the side wall of the main vent pipe.

[0035] Reference Figures 1 to 2 The spraying mechanism 4 includes a water pipe 41 installed in the front and back direction on the cleaning tank 1, and a plurality of spray heads 42 evenly distributed on the water pipe 41.

[0036] Reference Figures 1 to 3The front and rear side walls of the cleaning tank 1 are both double-layered hollow and detachable structures. The sewage discharge mechanism 5 includes overflow channels 51 symmetrically opened on the front and rear inner walls of the cleaning tank 1. The height of the overflow channels 51 is lower than the right high position of the stepped section of the conveying component 21. The height of the overflow channels 51 is consistent with the top height of the discharge port 15. A sewage discharge channel 52 is provided in the double-layered hollow front and rear side walls of the cleaning tank 1. The upper part of the sewage discharge channel 52 is connected to the overflow channel 51. A sewage discharge port 53 is opened in the lower part of the left side wall of the cleaning tank 1. The left part of the sewage discharge channel 52 is connected to the sewage discharge port 53. The bottom of the sewage discharge channel 52 is inclined from the upper right to the lower left.

[0037] Reference Figure 3 , Figure 5 and Figure 6 The auxiliary mechanism 6 includes a drain assembly 61 and a partition 63 mounted on the cleaning tank 1. The drain assembly 61 is equipped with a brush roller 62 and includes two water pipes 611 symmetrically mounted on the cleaning tank 1. The middle of the water pipes 611 is symmetrically connected to two flushing heads 612. A support rod assembly 613 is fixedly connected to the cleaning tank 1 between the two water pipes 611. The support rod assembly 613 includes two support rods symmetrically mounted on the left and right. The middle of the support rods is rotatably connected to a paddle 614 corresponding to the flushing head 612. A drain roller 615 is fixedly connected between the left and right corresponding paddles 614. The bottom walls of the two support rods are symmetrically fixedly connected to a support frame in the shape of an inverted U. The brush roller 62 is rotatably connected between the two support frames. The brush roller 62 is located above the stepped horizontal section of the conveying assembly 21. The partition 63 is fixedly connected to the front and rear walls of the cleaning tank 1 between the separation zone 13 and the purification zone 14.

[0038] The cleaning tank 1 is equipped with a circulating water inlet mechanism (existing mature technology, not described in detail here, and not shown in the figure), and the water level in the cleaning tank 1 is always kept level with the top of the discharge port 15. Rice is fed into the inlet 11 and discharged from the outlet 15. In the washing tank 1, the rice is conveyed in a stepped manner from left to right by the conveying mechanism 2, passing sequentially through the rinsing zone 12, the separation zone 13, and the purification zone 14. In the rinsing zone 12, the rice is rinsed, where the corresponding spraying mechanism 4 and aeration pipe group 3 flush the light, floating rice grains into the water from both above and below, ensuring the rice is fully immersed in deep water. In the separation zone 13, the rice undergoes impurity separation, where the corresponding aeration pipe group 3, the sewage discharge mechanism 5, and the auxiliary mechanism 6 work together to float impurities using bubbles and lift the rice in a stepped manner, deeply cleaning the rice and light impurities and promoting timely discharge of impurities. In the purification zone 14, the rice is rinsed and purified by the corresponding spraying mechanism 4. Through the rice rinsing, impurity separation, and spray purification stages, the rice undergoes a highly efficient, stepped cleaning process with varying water depths.

[0039] Rice is conveyed in the washing tank 1 in a stepped manner from left to right by the conveyor component 21. When transitioning between the lower and higher horizontal levels, the mesh belt segment 211 is inclined. Through vertical stacking, a longer total washing path can be achieved in a smaller footprint, thus improving space utilization.

[0040] The aeration tube assembly 3 generates countless tiny, uniform bubbles in the water. As the bubbles pass through the bubble inlet 212 and rise, they continuously impact the surface of the rice grains submerged in the water. Through the upward movement of the bubbles, impurities are peeled off from the surface of the rice grains and float to the surface of the water.

[0041] In the rinsing zone 12, the rice is rinsed. The corresponding spray mechanism 4 and aeration pipe group 3 flush the light, floating rice grains into the water from both above and below, ensuring the rice is fully immersed in deep water. Specifically: After the rice is fed into the inlet 11, most of the rice is immersed in water and falls upwards and downwards towards the conveyor component 21, which is horizontal. The aeration pipe group 3 aerates the rice grains for initial bubble cleaning. At this time, a small portion of the light, floating rice grains float on the surface. Water with a certain impact force is sprayed through the spray head 42, pushing these grains into the water. This prevents the floating rice grains from being completely submerged, thus ensuring that surface dust and impurities are effectively washed away by the bubble cleaning.

[0042] The water in the rinsing zone 12 is relatively deep, and after being impacted by the water flow from the spray head 42, all the rice grains are submerged in the water. The rice has enough time and depth to be fully moistened, and the water penetrates into the micro-crevices on the surface of the rice grains and the junction between the rice grains and impurities. The attached impurities become loose and are easily removed by the air bubbles.

[0043] In the separation zone 13, the impurity separation stage begins. The corresponding aeration pipe group 3, sewage discharge mechanism 5, and auxiliary mechanism 6 work together to float impurities with bubbles and lift the rice in a stepped manner to deeply clean the rice and light impurities and promote timely discharge of impurities. Specifically, the conveying component 21 lifts and conveys the rice from left to right in a stepped manner. As the conveying component 21 is lifted, the water depth where the rice is located gradually becomes shallower, and the turbid sewage away from the bottom gradually moves towards the upper layer of clear water. The tilt of the conveying component 21, in conjunction with the bubbles of the aeration pipe group 3, performs advanced bubble cleaning of the rice grains. The tilted surface helps to turn over the bottom layer of rice, improving the problem of accumulation around the rice grains and uneven thickness of the rice layer caused by the bubbles. This ensures that all rice grains have the opportunity to be directly impacted by the bubbles and spray water, improving the uniformity of cleaning and facilitating deep cleaning.

[0044] In the horizontal section of the conveying component 21, the brush roller 62 breaks up some of the rice grain clumps through physical friction, further removing some of the bran and blemishes from the surface of the rice.

[0045] Impurities detach from the surface of the rice grains and float to the surface of the water. At this time, the water jet head 612 tilts and sprays water to impact the paddle 614. The paddle 614 rotates, driving the discharge roller 615 to rotate. The rear discharge roller 615 rotates clockwise forward, and the front discharge roller 615 rotates counterclockwise backward. The two discharge rollers 615 push the impurities toward the overflow grooves 51 on the corresponding front and rear side walls, accelerating the discharge of light impurities. The light impurities are discharged from the cleaning tank 1 in a timely manner through the discharge channel 52 and the discharge port 53, preventing the separated impurities from re-attaching to the clean rice grain surface and causing secondary pollution.

[0046] It should be noted that both water pipe 41 and water pipe 611 are connected to a water storage device (not shown in the figure) outside the washing tank 1 via a water pump (not shown in the figure). The water sprayed from the spray head 42 is in an umbrella shape, while the water sprayed from the rinsing head 612 is in a column shape. The brush roller 62 is made of food-grade, soft, and elastic material, such as nylon or polypropylene, and gently contacts the surface of the rice layer. This equipment is suitable for washing brown rice or washing white rice before it is refined into rice noodles or rice vermicelli, so the integrity of the rice grains is not a high requirement.

[0047] In the purification zone 14, the rice enters the spray purification stage. The rice lifted off the water surface is rinsed and purified by the corresponding spray mechanism 4. Specifically, the conveyor component 21 lifts the rice off the water surface and into the purification zone 14. The partition 63 blocks impurities on the water surface in the left separation zone 13. The spray head 42 sprays the rice to rinse and remove residual wastewater and a few impurities from the surface of the rice, further improving the cleaning and purification effect.

[0048] This invention performs a step-by-step, high-efficiency cleaning of rice by using a rice rinsing stage, an impurity separation stage, and a spray purification stage, with the water depth decreasing from deep to shallow. The rice is lifted and conveyed from left to right in a stepped manner by a conveying component 21 and passes through the rinsing zone 12, the separation zone 13, and the purification zone 14 in sequence. Within a certain cleaning path, the footprint is reduced and the space utilization rate is improved. In the rinsing zone 12, the rice is rinsed. The corresponding sewage discharge mechanism 5 and aeration pipe group 3 flush the light, floating rice grains into the water from both above and below, allowing the rice to be fully soaked in deep water. The floating rice grains are completely submerged by the water flow, and the rice has enough time and depth to be fully soaked. Surface dust and impurities are difficult to effectively wash away by the air bubbles. In the separation zone 13, the impurity separation stage begins. The corresponding aeration pipe group 3, sewage discharge mechanism 5, and auxiliary mechanism 6 work together to float impurities with air bubbles and lift the rice in a stepped manner, gradually raising the turbid sewage away from the bottom towards the upper layer of clear water. This thoroughly agitates the bottom layer of rice, ensuring that all rice grains have the opportunity to be directly impacted by air bubbles and spray water, improving the uniformity of the cleaning and accelerating the discharge of light impurities. This prevents the separated impurities from re-adhering to the clean rice grain surface and causing secondary pollution. In the purification zone 14, the spray purification stage begins. The corresponding sewage discharge mechanism 5 rinses and purifies the rice that has been lifted out of the water surface, removing residual wastewater and a small amount of impurities from the rice surface, thus achieving continuous and efficient cleaning operations.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rice deep processing automatic cleaning system comprising a cleaning tank, characterized in that, The cleaning tank comprises an inlet and an outlet arranged respectively on the left and right parts, and a washing area, a separation area and a purification area are sequentially arranged from left to right in the middle part of the cleaning tank; The inside of the cleaning tank is provided with a conveying mechanism and a plurality of aeration pipe groups, the upper part of the cleaning tank is provided with a spraying mechanism arranged in the washing area and the purification area and an auxiliary mechanism arranged in the separation area, and a sewage discharge mechanism is symmetrically arranged on the front and back walls of the cleaning tank; The plurality of aeration pipe groups are arranged in the washing area and the separation area, and the aeration pipe groups are arranged in parallel with the stepped section of the conveying assembly; The auxiliary mechanism comprises a sewage discharge assembly and a partition plate arranged on the cleaning tank, the sewage discharge assembly is provided with a brush roller, the sewage discharge assembly comprises two water passing pipes two symmetrically arranged on the cleaning tank, the middle part of the water passing pipe two is symmetrically connected with two water flushing heads, and the cleaning tank is fixedly connected with a support rod group between the two water passing pipes two; The support rod group comprises two support rods symmetrically arranged, the middle part of the support rod is rotatably connected with a paddle corresponding to the water flushing head, and the left and right corresponding paddles are fixedly connected with a sewage discharge roller. The rice is conveyed by the conveying mechanism in the cleaning tank from left to right in a stepped manner and sequentially passes through the washing area, the separation area and the purification area, enters the rice washing stage in the washing area, the light and floating rice grains are flushed into the water by the corresponding spraying mechanism and aeration pipe group, and the rice is fully soaked in deep water; in the separation area, the corresponding aeration pipe group, sewage discharge mechanism and auxiliary mechanism cooperate to float the impurities by bubbles and lift the rice in a stepped manner to clean the rice and light impurities deeply and discharge the impurities in time; in the purification area, the rice lifted out of the water surface is flushed and purified by the corresponding spraying mechanism; the rice is subjected to a stepped and efficient cleaning operation from deep to shallow water depth through the rice washing stage, the impurity separation stage and the spraying and purification stage; The conveying mechanism comprises a driving wheel group, a driven wheel group and a motor symmetrically arranged on the cleaning tank, the driving wheel group and the driven wheel group are provided with a conveying assembly, the driving wheel group drives the conveying assembly to convey the rice from left to right, and the transmission track of the conveying assembly is stepped by the driven wheel group; The driving wheel group comprises three driving wheels rotatably connected to the front and back side walls of the cleaning tank, the three driving wheels are rotatably connected to the left lower side, the right upper side and the right lower side of the cleaning tank respectively, and the three driving wheels are all driven to rotate clockwise by the motor; The conveying assembly comprises a plurality of net belt sections hingedly connected end to end, and a plurality of bubble passing openings are uniformly formed in the net belt section, the driven wheel group comprises a plurality of guide wheels rotatably connected to the front and back side walls of the cleaning tank, and the guide wheels limit the net belt section.

2. The rice deep processing automatic cleaning system according to claim 1, characterized in that, The aeration pipe group is composed of a main air pipe and a plurality of aeration branch pipes symmetrically connected to the side wall of the main air pipe, and the spraying mechanism comprises a water passing pipe one arranged on the cleaning tank in front and back directions, and a plurality of spraying heads are uniformly arranged on the water passing pipe one.

3. The rice deep processing automatic cleaning system according to claim 1, characterized in that, The front and rear side walls of the cleaning tank are double-layer hollow detachable structures, the pollution discharge mechanism comprises overflow grooves symmetrically arranged on the inner walls of the front and rear walls of the cleaning tank, and the height of the overflow grooves is lower than the high position of the right part of the stepped section of the conveying assembly and is consistent with the top height of the discharge port.

4. The rice deep processing automatic cleaning system according to claim 3, characterized in that, The double-layer hollow front and rear side walls of the cleaning tank are provided with a pollution discharge channel, the upper part of the pollution discharge channel is communicated with the overflow groove, the lower part of the left side wall of the cleaning tank is provided with a pollution discharge port, the left part of the pollution discharge channel is communicated with the pollution discharge port, and the bottom of the pollution discharge channel is inclined from the upper right to the lower left.

5. The rice deep processing automatic cleaning system according to claim 1, characterized in that, The bottom walls of the two support rods are symmetrically and fixedly connected with support frames in inverted L-shaped structures, brush rollers are rotatably connected between the two support frames, the brush rollers are arranged above the stepped horizontal section of the conveying assembly, and the partition plates are fixedly connected to the front and rear walls of the cleaning tank and located between the separation area and the purification area.

Images