Rice cleaning device, cleaning method and automatic sterile rice production line

Abstract

The invention discloses a rice cleaning device, a cleaning method and an automatic sterile rice production line, the rice cleaning device comprises a cleaning cylinder, the cleaning cylinder comprises an outer cylinder body and an inner cylinder body which can be separated, and a stirring cleaning mechanism for cleaning rice is arranged in the inner cylinder body; the stirring and cleaning mechanism comprises a power assembly and a stirring part connected with the driving end of the power assembly, a cleaning roller is arranged in the center of the stirring part, a spiral cleaning flow channel is formed between the cleaning roller and the wall face of the stirring part, and rice is pre-cleaned in the cleaning flow channel before entering the cleaning cylinder to be stirred and cleaned; the rice cleaning device is applied to an automatic sterile rice production line, the cleaning effect on rice can be guaranteed, residual particulate matter impurities in the rice can be greatly reduced or eliminated, and therefore the rice production quality of the production line can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of rice production equipment, and in particular to a rice cleaning device, a cleaning method and an automatic aseptic rice production line. Background Art

[0002] Sterile rice, also known as sterile instant rice, refers to a high-quality fast food rice produced on a large scale industrially. After being sterilized in a high-temperature and high-pressure environment, the rice is directly sealed in a packaging container containing clean nitrogen in a sterile and dust-free environment, so that it can be preserved for a long time and can be eaten directly or simply heated.

[0003] Its production is characterized by intensive, standardized and industrialized production. In the prior art, many aseptic rice production processes are disclosed. Before steaming, the rice needs to be washed, soaked and other processing procedures. At present, the washing of rice mainly relies on the direct disturbance of the stirring shaft and the use of water flow to rinse the rice. However, this method has poor washing uniformity and cannot achieve a good washing effect, resulting in impurities in the washed rice, which affects the taste and quality of the rice finally produced. Summary of the invention

[0004] Technical purpose: In view of the shortcomings of existing rice production lines in rice cleaning, the present invention discloses a rice cleaning device, a cleaning method and an automatic aseptic rice production line.

[0005] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution: A rice cleaning device comprises a cleaning cylinder, wherein the cleaning cylinder comprises a detachable outer cylinder body and an inner cylinder body, wherein a stirring and cleaning mechanism for cleaning rice is arranged in the inner cylinder body, wherein the stirring and cleaning mechanism comprises a power assembly and a stirring member connected to a driving end of the power assembly, wherein a cleaning roller is arranged at the center of the stirring member, and a spiral cleaning flow channel is formed between the cleaning roller and a wall surface of the stirring member, and the rice is pre-cleaned in the cleaning flow channel before entering the cleaning cylinder for stirring and cleaning.

[0006] Preferably, the stirring element of the present invention includes a feeding portion located at the upper part and a guide portion located at the lower part for cooperating with a cleaning roller to form a cleaning flow channel. The feeding portion adopts a trumpet-shaped opening structure to form a feeding area for rice and cleaning water to enter. A spiral feeding groove is provided on the inner wall of the guide portion. When the stirring element rotates relative to the cleaning roller, the rice enters the spiral feeding groove from the feeding portion and is transported as the stirring element moves downward until it is separated from the guide portion of the stirring element and falls into the cleaning cylinder.

[0007] Preferably, the outer wall of the guide portion of the stirring element of the present invention is provided with fins for flow disturbance, and along the axial direction of the guide portion, the fins are divided into several sections, and two adjacent sections of the fins are respectively inclined to different circumferential directions of the guide portion.

[0008] Preferably, the stirring and cleaning mechanism of the present invention is movably arranged above the inner cylinder through a lifting frame, and a cleaning mechanism for separating floating objects in the cleaning water is arranged on the inner cylinder.

[0009] Preferably, the cleaning mechanism of the present invention comprises a drainage groove arranged on the upper wall of the inner cylinder, and an angle adjustment component arranged at the bottom of the inner cylinder for tilting the inner cylinder toward the side where the drainage groove is located.

[0010] Preferably, the cleaning cylinder of the present invention is connected with a screening mechanism for pre-sorting particles in rice, wherein the screening mechanism comprises a slanted screening plate and a vibration assembly arranged below the screening plate, and the vibration assembly assists the movement of rice on the screening plate.

[0011] Preferably, a plurality of screening grooves are arranged longitudinally on the screening plate of the present invention, and screening baffles are arranged in a direction perpendicular to the screening grooves, the screening baffles are arranged staggered with each other in the direction of the screening grooves, the lower screening baffle is located in the end area of ​​the upper screening baffle, and the screening baffles form a secondary screening structure to separate the rice and particulate impurities flowing on the screening plate; the screening baffle adopts an inclined structure with the middle part higher than the two ends.

[0012] The present invention also discloses a rice cleaning method. The rice cleaning device is used. The rice after screening enters the cleaning flow channel formed between the stirring element and the cleaning roller. The power component drives the stirring element to rotate and drives the rice to move downward. During the rotation of the stirring element, cleaning water is injected into the stirring element synchronously. In the cleaning flow channel, the cleaning roller is used to pre-clean the rice. As the stirring element rotates, the pre-cleaned rice falls from the lower end of the flow guide element into the inner cylinder. After the rice to be washed completely falls into the inner cylinder, the stirring element is used to stir it, the water flow is used to rinse the rice, and the washing water is updated according to the set washing times, and finally the rice is washed.

[0013] Preferably, when the stirring member is used for stirring, the stirring member is driven to rotate by a power assembly, and the fins on the stirring member disturb the water flow. The fins with different inclination directions have different abilities to disturb the water flow when the stirring member rotates, so that the water flow forms flow stratification in the inner cylinder, thereby enhancing the rinsing of the rice.

[0014] The invention discloses an automatic aseptic rice production line, which comprises a rice bin, a rice washing device, a soaking and filling device, a rice cooking device and a rice packaging device which are arranged in sequence. The rice washing device and the rice cleaning device clean the rice transported from the rice bin, and then send the rice into the soaking and filling device for soaking, and then fill the rice into the rice cooking device for rice production.

[0015] Beneficial effects: The rice cleaning device, cleaning method and aseptic rice automatic production line disclosed in the present invention have the following beneficial effects: 1. Before stirring and cleaning the rice, the present invention first performs pre-cleaning through a cleaning channel between a stirring member and a cleaning roller, controls the cleaning rate by using the cleaning channel, and simultaneously utilizes friction to improve the cleaning effect, thereby facilitating the separation of rice from surface impurities or dirt and improving the cleaning quality.

[0016] 2. The stirring element of the present invention uses a feeding part with a trumpet-shaped structure at the upper part, which is convenient for conveying rice and washing water, and can play the role of pre-storing the conveyed rice to avoid the mismatch between the conveying rate and the washing rate, resulting in part of the rice directly entering the inner cylinder without pre-cleaning.

[0017] 3. In the present invention, fins are arranged on the outer wall of the flow guide portion of the stirring element, and adjacent fins are inclined in different circumferential directions. When the stirring element is rotated to disturb the washing water, flow stratification will occur between adjacent fins due to the different disturbance effects of the fins, thereby enhancing the flushing impact between the water flow of the washing water and the rice, thereby improving the uniformity of the washing and ensuring the washing effect.

[0018] 4. The present invention provides a cleaning mechanism on the inner cylinder, which can remove some floating objects while stirring and cleaning, thereby ensuring the cleaning quality, simplifying the cleaning steps and improving the cleaning efficiency.

[0019] 5. The present invention uses a screening mechanism to screen and remove residual particulate impurities in the rice before the rice enters the washing cylinder. The screening plate is used to guide the conveying during screening. The screening baffle plate is arranged in a direction perpendicular to the screening groove to guide and disperse the flow direction of the rice on the screening plate, thereby preventing part of the rice from being unscreened and allowing impurities to enter the washing cylinder. At the same time, the screening baffle plate can extend the flow path of the rice on the screening plate, thereby extending the screening time and ensuring the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0021] Figure 1 This is the overall structural diagram of the cleaning cylinder of the present invention; Figure 2 This is a structural diagram of the stirring and cleaning mechanism of the present invention; Figure 3 It is a cross-sectional view along the axis direction of the cleaning roller of the present invention; Figure 4 This is a structural diagram of the screening plate surface of the present invention; Figure 5 is a cross-sectional view of the screening baffle of the present invention; Among them, 1-cleaning cylinder, 2-outer cylinder, 3-inner cylinder, 4-power assembly, 5-stirring element, 6-cleaning roller, 7-feeding part, 8-flow guide part, 9-fin, 10-lifting frame, 11-drainage trough, 12-angle adjustment assembly, 13-screening plate, 14-screening trough, 15-screening baffle, 16-cleaning flow channel, 17-motor, 18-connecting plate, 19-connecting rod. DETAILED DESCRIPTION

[0022] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by way of explanation of the apparatus, composition and materials of the present disclosure, rather than limitation. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations may be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0023] like Figure 1-Figure 5 As shown, the present invention discloses a rice cleaning device, comprising a cleaning cylinder 1, wherein the cleaning cylinder 1 comprises a detachable outer cylinder body 2 and an inner cylinder body 3, wherein a stirring and cleaning mechanism for cleaning rice is arranged in the inner cylinder body 3, and the outer cylinder body 2 is arranged at the outside, and is used to support the inner cylinder body and receive cleaning water for discharge; the stirring and cleaning mechanism comprises a power assembly 4 and a stirring member 5 connected to the driving end of the power assembly 4, wherein a cleaning roller 6 is arranged at the center of the stirring member 5, and a spiral cleaning flow channel 16 is formed between the cleaning roller 6 and the wall surface of the stirring member 5, and the rice is pre-cleaned in the cleaning flow channel 16 before entering the cleaning cylinder 1 for stirring and cleaning.

[0024] The present invention arranges the inner cylinder 3 and the outer cylinder 2 in a separable form, and both are provided with drainage pipes. After the rice is washed, the inner cylinder 3 can be directly taken out to facilitate the transportation of the rice. The corresponding stirring and cleaning mechanism needs to be able to move the position so as not to affect the operation of the inner cylinder 3. For this purpose, the stirring and cleaning mechanism of the present invention is movably arranged above the inner cylinder 3 through the lifting frame 10 as a whole, and the position can be adjusted by using a manipulator or other means that can drive the lifting frame 10 to move in space.

[0025] like Figure 2 and Figure 3As shown, in a specific embodiment, the stirring member 5 of the present invention includes a feeding portion 7 located at the upper part and a guide portion 8 located at the lower part for cooperating with the cleaning roller 6 to form a cleaning flow channel. The feeding portion 7 adopts a trumpet-shaped opening structure to form a feeding area for rice and cleaning water to enter. The inner wall of the guide portion 8 is provided with a spiral feeding groove. When the stirring member 5 rotates relative to the cleaning roller 6, the rice enters the spiral feeding groove from the feeding portion 7, and is transported with the downward movement of the stirring member until it is separated from the guide portion 8 of the stirring member 5 and falls into the cleaning cylinder. The pre-cleaning structure formed by the stirring member 5 of the present invention does not need to occupy additional equipment space, and can be completed directly in the cleaning cylinder, which is conducive to simplifying the equipment installation and reducing the space occupied by the equipment and the corresponding rice production line; at the same time, the trumpet-shaped structure of the feeding portion 7 can buffer and temporarily store the conveyed rice, and gradually use gravity to automatically move the rice smoothly according to the feeding rate of the spiral feeding groove.

[0026] When the feed part 7 is set to a trumpet-shaped opening structure, the corresponding power component is driven by a motor 17. A connecting disk 18 is set at the driving end of the motor 17, and the connecting disk 18 is connected to the feed part 7 through a connecting rod 19 on the connecting disk 18 to realize the rotational drive of the stirring element 5 to avoid interference between the power component and the cleaning roller 6. The cleaning roller 6 can be installed and fixed in a manner that cooperates with the bearing of the connecting disk 18.

[0027] The stirring element 5 can stir and clean the cleaning water and rice in the inner cylinder by directly setting a stirring shaft outside the stirring element 5. Considering that only setting a stirring shaft is prone to uneven stirring, which affects the final cleaning effect, the outer wall of the guide part 8 of the stirring element 5 of the present invention is provided with fins 9 for disturbing the flow. Along the axial direction of the guide part 8, the fins 9 are divided into several sections, and the adjacent two sections of the fins are inclined to different circumferential directions of the guide part 8, such as Figure 2 As shown, because the inclination directions of the fins are inconsistent, when the stirring element 5 is driven by the power assembly, the different inclination directions cause different water flow forces on the corresponding areas. Therefore, even at the same rotation speed, a flow velocity difference will be formed at the junction, thereby enhancing the cleaning impact effect between the water flow and the rice and improving the cleaning efficiency.

[0028] In addition, the stirring and washing mechanism of the present invention is provided with a cleaning mechanism on the inner cylinder 3 for separating floating objects in the washing water, and the floating objects and impurities remaining in the rice are removed by the cleaning mechanism. To improve efficiency, the cleaning mechanism of the present invention is designed to be able to clean synchronously during the stirring and washing process. The cleaning mechanism includes a drainage groove 11 arranged at the upper cylinder wall position of the inner cylinder, and an angle adjustment component 12 arranged at the bottom of the inner cylinder 3 for tilting the inner cylinder 3 toward the side where the drainage groove is located. The angle adjustment component 12 adopts a device that can be raised and lowered and adjusted and is arranged at the bottom of the inner cylinder 3, for example Cylinders, electric cylinders, etc., by adjusting the height, the inner cylinder 3 can be tilted at a certain angle, so that the cleaning water on the upper part can be discharged from the drain groove 11 with floating objects and enter the outer cylinder 2; cleaning is completed simultaneously while stirring, saving cleaning time and improving efficiency; in order to improve the stability of the position of the inner cylinder 3 during the tilting process, a groove that cooperates with the driving end of the angle adjustment component can be set at the bottom of the inner cylinder 3 to avoid detachment. After cleaning is completed, the cleaning water inside the inner cylinder 3 enters the outer cylinder 2 from the drain pipe set at the bottom, and is collected by the outer cylinder 2 and discharged uniformly.

[0029] like Figure 4 and Figure 5 As shown, the cleaning cylinder 1 of the present invention is also connected to a screening mechanism for pre-sorting particulate matter in rice, the screening mechanism includes an inclined screening plate 13 and a vibration assembly arranged below the screening plate 13, which can be directly realized by using a vibrator, and the vibration assembly assists the movement of rice on the screening plate 13; a plurality of screening slots 14 are arranged on the screening plate 13 in the longitudinal direction, and a screening baffle 15 is arranged in a direction perpendicular to the screening slots 14, the cross-section of the screening baffle is a nearly U-shaped arc structure, the screening baffles 15 are mutually staggered along the direction of the screening slots 14, the lower screening baffle is located at the end area of ​​the upper screening baffle, and the screening baffle 15 forms a secondary screening structure to separate the rice and particulate impurities flowing on the screening plate 13, and screening holes can be opened on the plate surface of the screening baffle 15 along the moving direction of the rice to extend the overall screening path, and continue to screen the particulate matter while moving the guide; as shown Figure 5 As shown, in order to facilitate the movement of rice during the screening process, the screening baffle 15 of the present invention adopts an inclined structure with the middle portion higher than the two ends. The screening baffle 15 at the edge of the screening plate 13 can also be designed to be inclined toward the inner side of the plate so that accumulation occurs at the edge due to poor flow. The residual impurities contained in the rice can be further removed by the screening mechanism, and the screening effect can be improved while occupying limited equipment space.

[0030] The present invention also discloses a rice cleaning method. The rice cleaning device is used. The rice after screening enters the cleaning flow channel formed between the stirring element and the cleaning roller. The power component drives the stirring element to rotate and drives the rice to move downward. During the rotation of the stirring element, cleaning water is injected into the stirring element synchronously. In the cleaning flow channel, the cleaning roller is used to pre-clean the rice. As the stirring element rotates, the pre-cleaned rice falls from the lower end of the flow guide element into the inner cylinder. After the rice to be washed falls completely into the inner cylinder, a stirring member is used to stir the rice. When the stirring member is used to stir the rice, the stirring member is driven to rotate by a power assembly, and the fins on the stirring member disturb the water flow. The fins with different inclination directions have different disturbance capabilities on the water flow when the stirring member rotates, so that the water flow forms a flow stratification in the inner cylinder, and the washing of the rice is strengthened. The rice is washed by the water flow, and the washing water is replaced according to the set number of washing times, and the rice water generated by the washing is discharged from the drain pipes of the inner cylinder and the outer cylinder. A filter is set at the drain port of the inner cylinder to prevent the rice from flowing out of the corresponding drain pipe when the water is changed in the middle of washing, and finally the washing of the rice is completed.

[0031] The present invention discloses an automatic production line for aseptic rice, comprising a rice bin, a rice washing device, a soaking and filling device, a rice cooking device and a rice packaging device which are arranged in sequence. The rice washing device uses the above-mentioned rice cleaning device to clean the rice transported from the rice bin, and then sends the rice into the soaking and filling device for soaking, and then fills the rice into the rice cooking device for rice production. When transferring the rice, the inner cylinder can be directly moved out as a whole for transportation to reduce the difficulty of transfer, for example, the inner cylinder can be directly clamped by a robot for transportation or other existing transportation methods can be adopted.

[0032] The rice cleaning device of the present invention is used in an automatic aseptic rice production line to ensure the cleaning effect of rice, greatly reduce or eliminate residual particulate impurities in the rice, thereby ensuring the rice production quality of the production line. At the same time, the cleaning device of the present invention can also be used in cleaning use scenarios of other crops of the same category according to usage requirements, which is also within the protection scope of the present application.

Claims

1. A rice cleaning device, characterized in that: The invention comprises a cleaning cylinder (1), wherein the cleaning cylinder (1) comprises a detachable outer cylinder (2) and an inner cylinder (3), wherein a stirring and cleaning mechanism for cleaning rice is arranged in the inner cylinder (3), wherein the stirring and cleaning mechanism comprises a power assembly (4) and a stirring member (5) connected to a driving end of the power assembly (4), wherein a cleaning roller (6) is arranged at the center of the stirring member (5), and a spiral cleaning flow channel (16) is formed between the cleaning roller (6) and the wall surface of the stirring member (5), and before the rice enters the cleaning cylinder (1) for stirring and cleaning, it is pre-cleaned in the cleaning flow channel (16).

2. A rice cleaning device according to claim 1, characterized in that: The stirring member (5) comprises a feeding portion (7) located at the top and a guide portion (8) located at the bottom for cooperating with the cleaning roller (6) to form a cleaning flow channel. The feeding portion (7) adopts a trumpet-shaped opening structure to form a feeding area for rice and cleaning water to enter. The inner wall of the guide portion (8) is provided with a spiral feeding groove. When the stirring member (5) rotates relative to the cleaning roller (6), the rice enters the spiral feeding groove from the feeding portion (7) and is transported as the stirring member moves downward until it is separated from the guide portion (8) of the stirring member (5) and falls into the cleaning cylinder.

3. A rice cleaning device according to claim 2, characterized in that: The outer wall of the flow guide portion (8) of the stirring member (5) is provided with fins (9) for disturbing the flow. Along the axial direction of the flow guide portion (8), the fins (9) are divided into a plurality of sections, and two adjacent sections of the fins are respectively inclined in different circumferential directions of the flow guide portion (8).

4. A rice cleaning device according to claim 1, characterized in that: The stirring and cleaning mechanism is movably arranged above the inner cylinder (3) via a lifting frame (10), and a cleaning mechanism for separating floating objects in the cleaning water is arranged on the inner cylinder (3).

5. A rice cleaning device according to claim 4, characterized in that: The cleaning mechanism comprises a drainage groove (11) arranged on the upper wall of the inner cylinder, and an angle adjustment component (12) arranged on the bottom of the inner cylinder (3) for tilting the inner cylinder (3) towards the side where the drainage groove is located.

6. A rice cleaning device according to claim 1, characterized in that: The cleaning cylinder (1) is connected to a screening mechanism for pre-sorting particles in the rice, the screening mechanism comprising a screening plate (13) arranged obliquely and a vibration component arranged below the screening plate (13), the vibration component assisting the movement of the rice on the screening plate (13).

7. A rice cleaning device according to claim 6, characterized in that: A plurality of screening slots (14) are arranged in the longitudinal direction of the screening plate (13), and screening baffles (15) are arranged in a direction perpendicular to the screening slots (14); the screening baffles (15) are arranged in a staggered manner along the direction of the screening slots (14); the lower screening baffles are located at the end region of the upper screening baffles; the screening baffles (15) form a secondary screening structure to separate rice and particulate impurities flowing on the screening plate (13); and the screening baffles (15) are of an inclined structure with the middle portion being higher than the two ends.

8. A rice cleaning method, using the rice cleaning device according to any one of claims 1 to 7, characterized in that: The rice after screening enters the cleaning flow channel formed between the stirring element and the cleaning roller. The power assembly drives the stirring element to rotate, driving the rice to move downward. During the rotation of the stirring element, cleaning water is simultaneously injected into the stirring element. In the cleaning flow channel, the cleaning roller is used to pre-clean the rice. As the stirring element rotates, the pre-cleaned rice falls from the lower end of the guide element into the inner cylinder. After the rice to be washed completely falls into the inner cylinder, the stirring element is used to stir it, the water flow is used to rinse the rice, and the washing water is updated according to the set washing times, and finally the rice is washed.

9. A rice cleaning method according to claim 8, characterized in that: When the stirring element is used for stirring, the stirring element is driven to rotate by the power assembly, and the fins on the stirring element disturb the water flow. The fins with different inclination directions have different disturbance abilities on the water flow when the stirring element rotates, so that the water flow forms flow stratification in the inner cylinder, thereby enhancing the washing of the rice.

10. An automatic sterile rice production line, characterized in that: The invention comprises a rice bin, a rice washing device, a soaking and filling device, a rice cooking device and a rice packaging device which are arranged in sequence. The rice washing device uses the rice cleaning device described in any one of claims 1 to 7 to clean the rice transported from the rice bin, and then sends the rice into the soaking and filling device for soaking, and then fills the rice into the rice cooking device for rice making.

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