Cleaning device for rice starch production

By designing a rice cleaning device that includes a filter can, a rinsing chamber and a reserved chamber, the problem of debris precipitation on the rice pile in existing equipment is solved, and a more efficient rice cleaning effect and a simplified operation process are achieved.

CN222519359UActive Publication Date: 2025-02-25JIANGSU BABY SUQIAN NAT BIOTECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421293417.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-02-25
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

When cleaning rice in existing rice cleaning equipment, debris and gravel floating in the rice washing water are prone to settle on the rice pile and mix with the rice, affecting the cleaning effect.

Method used

A cleaning device for the production of rice starch is designed, including a cleaning tank, a filter can and a tank lid. The filter can is equipped with filter holes, rinsing chambers and reserved chambers. The debris in the rice are floated to the rinsing chamber by stirring and centrifugal force. and reserve the cavity, and discharge the debris and rice washing water through the outlet pipe and the water pump pipe to prevent the debris from precipitating on the rice pile.

Benefits of technology

It effectively improves the cleaning effect of rice, avoids debris precipitation on the rice pile and mixes with rice, simplifies the subsequent filtration steps, and improves the cleaning efficiency and practicality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

The cleaning device for rice starch production comprises a cleaning tank, a filtering tank and a tank cover, a cavity is formed in the cleaning tank, an annular step is arranged on the inner wall of the cavity, the filtering tank is inserted into the annular step and clamped to the upper end face of the annular step, and in addition, the filtering tank covers the cleaning tank. A plurality of filtering holes communicated with the inner cavity of the filtering tank are uniformly formed in the outer wall of the filtering tank, and a rinsing cavity is formed between the part, located above the annular step, of the outer wall of the filtering tank and the inner wall of the cavity. According to the cleaning device disclosed by the invention, rice can be filtered in the filtering tank when being cleaned, so that sundries such as broken stones doped in the rice float into the rinsing cavity and the reserved cavity along with the movement of rice cleaning water, and the cleaned rice is prevented from being in contact with the sundries such as the broken stones in the rice cleaning water; the situation that when the rice washing water is discharged, sundries such as broken stones floating in the rice washing water are precipitated on a rice pile and mixed with rice is avoided, and the rice washing effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of rice starch processing equipment, in particular to a cleaning device for rice starch production. Background Art

[0002] Rice starch is a type of starch extracted from rice. It has unique physical and chemical properties. Compared with other cereal starch particles, rice starch particles are very small and have uniform particle size. It is mainly used in various foods such as candy, biscuits, bread, jam, jelly, cold drinks, beverages, ice cream, sausages, ham, pastries, solid beverages, infant cakes, instant noodles, etc. as a thickener, filler, excipient and functional factor. At the same time, due to its good freeze-thaw stability, it is also often used in the production of frozen desserts and gravy. It plays an important role in the food, medicine, cosmetics and other industries.

[0003] However, when producing rice starch, rice needs to be cleaned, crushed, soaked, refined, separated and dehydrated and dried to obtain rice starch, and the existing cleaning equipment, when cleaning rice, mostly pours rice into the filter cylinder inside the tank body, allows the rice to be soaked in water, then by stirring the rice, allows the impurities and gravel in the rice to float in the water, finally, the rice washing water is discharged from the drain pipe at the bottom of the tank, and the rice is filtered out, and the cleaning of rice is completed with this, but when the rice washing water is discharged, the floating part of the sundries and gravel in the rice washing water can be deposited on the rice heap and mixed with the rice, affecting the cleaning effect of the rice. Therefore, those skilled in the art provide a kind of cleaning device for rice starch production, to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a cleaning device for rice starch production to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cleaning device for rice starch production comprises: a cleaning tank, a filtering tank and a tank cover, wherein a cavity is provided inside the cleaning tank, an annular step is provided on the inner wall of the cavity, the filtering tank is inserted into the inner wall of the annular step and is engaged with the upper end surface thereof, and a plurality of filter holes are evenly provided on the outer wall of the filtering tank which are connected with the inner cavity thereof, a rinsing cavity is provided between the portion of the outer wall of the filtering tank located above the annular step and the inner wall of the cavity, a reserved cavity is provided between the portion of the outer wall of the filtering tank located below the annular step and the inner wall of the cavity, the inner cavity of the filtering tank is connected with the rinsing cavity and the reserved cavity through the filter holes, a plurality of water outlet pipes are evenly provided at positions of the outer wall of the cleaning tank corresponding to the rinsing cavity, the water outlet pipes penetrate the cleaning tank and are connected with the rinsing cavity, and a filter cap is provided at the bottom of the cleaning tank which is connected with the inner wall of the cleaning tank. A drainage pipe is connected to the reserved cavity, and a second stop valve and a first stop valve are respectively provided inside the drainage pipe and several water outlet pipes, and a water suction pipe is provided on one side of the cleaning tank, and branch pipes are provided at positions corresponding to the outer wall of the water suction pipe and the several water outlet pipes, and one end of the branch pipe away from the water suction pipe is installed at the end of the water outlet pipe and is connected thereto, and the water suction pipe is connected to the rinsing cavity through the branch pipe and the water outlet pipe, and one end of the water suction pipe away from the branch pipe is installed at the input end of the water pump, the tank cover is threadedly installed on the top of the cleaning tank and pressed tightly against the upper end surface of the filter tank, and a motor is provided on the top of the tank cover, and a drive shaft is provided at the output end of the motor, the drive shaft passes through the tank cover and extends to the interior of the filter tank, and a stirring blade is provided on the outer wall of the drive shaft located inside the filter tank.

[0007] Preferably, a through opening is opened at the center of the annular step, the filter tank is inserted into the through opening, and the upper end surface of the filter tank is flush with the upper end surface of the cleaning tank.

[0008] Preferably, the bottom of the outer wall of the filter tank is provided with an annular lug for defining its position, and the end surface area of ​​the annular lug is larger than the opening area of ​​the through port.

[0009] Preferably, two symmetrically distributed limit connecting rods are provided on the top of the outer wall of the filter tank, and a slot is opened at the top of the cleaning tank at a position corresponding to the limit connecting rod. The end of the limit connecting rod away from the filter tank is engaged in the inside of the slot, and the end of the limit connecting rod away from the filter tank is flush with the outer wall of the cleaning tank.

[0010] Preferably, a limiting lug is provided on the top of the cleaning tank, and a threaded ring is provided on the portion of the outer wall of the cleaning tank above the limiting lug, and the tank cover is threadedly mounted on the top of the cleaning tank through the threaded ring and tightly attached to the upper end surface of the limiting lug.

[0011] Preferably, the diameter of the annular support ear is the same as the diameter of the inner cavity of the cavity, and the annular support ear is attached to the inner wall of the cavity.

[0012] Preferably, the branch pipe is inserted into the inside of the water outlet pipe, and a first flange is provided at one end of the water outlet pipe located outside the cleaning tank, a second flange is provided on one side of the outer wall of the branch pipe located on the first flange, the second flange is attached to the outer wall of the first flange, and a fastening bolt is provided on one side of the second flange, the fastening bolt passes through the second flange and is threadedly installed inside the first flange.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] By arranging a filter tank inside the cleaning tank, when washing rice, water can be firstly poured into the cleaning tank, and the water can enter the inner cavity of the filter tank from the filter holes on the filter tank, and then the rice is poured into the filter tank to contact with the water, and then the motor is driven to work to drive the driving shaft at the output end thereof to rotate, and drive the stirring blades installed on the driving shaft to rotate in the filter tank, stirring the rice in the filter tank to move in the water, so that the rice is fully in contact with the water, and the dust on the surface of the rice is washed, and at the same time, the sundries and gravels mixed in the rice float in the water following the movement of the rice, and move from the filter holes to the rinsing chamber and the reserved chamber under the action of centrifugal force, and then the first stop valves in the water outlet pipes are opened in turn, so that the water pump draws the rice washing water at different positions in the rinsing chamber through the water pumping pipe, and the sundries and gravels floating in the rice washing water are drawn out of the cleaning tank, and finally, the stirring of the rice is stopped, and the second stop valve is opened, and the rice is discharged through the drainage pipe. The rice washing water in the reserved cavity is discharged to complete the filtering of the rice and the discharge of the rice washing water, thereby completing the washing of the rice. When washing the rice, the rice can be filtered in the filter tank, and the gravels and other sundries mixed in the rice are allowed to float to the rinsing cavity and the reserved cavity along with the movement of the rice washing water. Then, the rice washing water in the rinsing cavity and the reserved cavity is extracted, and the rice washing water and the gravels and other sundries floating therein are discharged to the outside, so that the washed rice is not allowed to contact with the gravels and other sundries in the rice washing water, and the situation that the gravels and other sundries floating in the rice washing water are deposited on the rice pile and mixed with the rice when the rice washing water is discharged is avoided, thereby improving the washing effect of the rice. Moreover, the filter tank can be directly taken out, and the rice in the filter tank can be rinsed and collected, so that the rice is accumulated at the bottom of the filter tank, thereby avoiding the trouble of the washed rice being inconvenient to be taken out due to the adhesion of the washed rice to the tank wall, further improving the washing effect of the rice, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a cleaning device according to an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the disassembly of the cleaning tank, the filtering tank and the tank cover according to an embodiment of the utility model;

[0017] Figure 3 is a cross-sectional view of a cleaning device according to an embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of a filter tank according to an embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the connection between the filter tank and the cleaning tank according to an embodiment of the utility model.

[0020] In the figure: 1. cleaning tank; 101. cavity; 102. rinsing chamber; 103. reserved chamber; 104. threaded ring; 105. slot; 11. annular step; 111. through port; 12. outlet pipe; 121. first flange; 13. first stop valve; 14. suction pipe; 15. branch pipe; 151. second flange; 16. fastening bolt; 17. limit lug; 18. drain pipe; 19. second stop valve; 2. filter tank; 201. filter hole; 21. annular lug; 22. limit connecting rod; 3. tank cover; 31. motor; 32. drive shaft; 33. stirring blade. DETAILED DESCRIPTION

[0021] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0022] Combination Figure 1-Figure 5As shown, a cavity 101 is provided inside the cleaning tank 1, and an annular step 11 is provided on the inner wall of the cavity 101. The filter tank 2 is inserted into the inner part of the annular step 11 and engaged on its upper end surface, and a plurality of filter holes 201 connected with its inner cavity are evenly provided on the outer wall of the filter tank 2, a rinsing cavity 102 is provided between the portion of the outer wall of the filter tank 2 located above the annular step 11 and the inner wall of the cavity 101, and a reserved cavity 103 is provided between the portion of the outer wall of the filter tank 2 located below the annular step 11 and the inner wall of the cavity 101, the inner cavity of the filter tank 2 is connected with the rinsing cavity 102 and the reserved cavity 103 through the filter holes 201, and a plurality of water outlet pipes 12 are evenly provided at positions corresponding to the outer wall of the cleaning tank 1 and the rinsing cavity 102, the water outlet pipe 12 passes through the cleaning tank 1 and is connected with the rinsing cavity 102, and a drain pipe 1 connected with the reserved cavity 103 is provided at the bottom of the cleaning tank 1 8. A second stop valve 19 and a first stop valve 13 are respectively provided inside the drain pipe 18 and the plurality of water outlet pipes 12, and a water suction pipe 14 is provided on one side of the cleaning tank 1. Branch pipes 15 are provided at positions corresponding to the outer wall of the water suction pipe 14 and the plurality of water outlet pipes 12. One end of the branch pipe 15 away from the water suction pipe 14 is installed at the end of the water outlet pipe 12 and is connected thereto, and the water suction pipe 14 is connected to the rinsing chamber 102 through the branch pipe 15 and the water outlet pipe 12, and one end of the water suction pipe 14 away from the branch pipe 15 is installed at the input end of the water pump. The tank cover 3 is threadedly installed on the top of the cleaning tank 1 and pressed tightly against the upper end surface of the filter tank 2, and a motor 31 is provided on the top of the tank cover 3, and a drive shaft 32 is provided at the output end of the motor 31. The drive shaft 32 passes through the tank cover 3 and extends to the inside of the filter tank 2, and a stirring blade 33 is provided at the portion of the outer wall of the drive shaft 32 located inside the filter tank 2.

[0023] In one embodiment, when washing rice, water can be first poured into the washing tank 1, and water can be allowed to enter the inner cavity of the filter tank 2 from the filter hole 201 on the filter tank 2, and then the rice can be poured into the filter tank 2 to contact with the water, and then the motor 31 can be driven to drive the drive shaft 32 at its output end to rotate, and drive the stirring blade 33 installed on the drive shaft 32 to rotate in the filter tank 2, stirring the rice in the filter tank 2 to move in the water, so that the rice is fully in contact with the water, and the dust on the surface of the rice can be washed, and the gravel and other sundries mixed in the rice can be floated in the water and moved to the rinsing chamber 102 and the reserved chamber 103 under the action of centrifugal force, so that the rice is not allowed to contact with the gravel and other sundries floating in the rice washing water, so as to avoid the trouble of filtering out clean rice in the subsequent sequence due to the mixing of the washed rice with the gravel and other sundries floating in the water, thereby reducing the filtering time of the washed rice and improving the efficiency of rice washing.

[0024] In one embodiment, when the rice washing water is discharged, the first stop valve 13 in each water outlet pipe 12 can be opened in sequence, so that the water pump can extract the rice washing water at different positions in the rinsing chamber 102 through the pumping pipe 14, and the sundries and gravel floating in the rice washing water are extracted out of the cleaning tank 1, and then the second stop valve 19 is opened to allow the rice in the reserved chamber 103 to flow into the drain pipe 18 under the action of its own gravity, and be discharged to the outside of the cleaning tank 1 from the drain pipe 18, thereby completing the discharge of the rice washing water, being able to extract the rice washing water at different positions in the rinsing chamber 102, and discharging the rice washing water in the rinsing chamber 102 and sundries such as gravel floating therein to the outside, preventing the washed rice from contacting with the sundries such as gravel in the rice washing water, avoiding the situation that some sundries and gravel floating in the rice washing water are precipitated on the rice pile and mixed with the rice when the rice washing water is discharged, thereby improving the washing effect of the rice.

[0025] In one embodiment, when the filter tank 2 is installed in the cleaning tank 1 for use, the filter tank 2 can be placed in the cavity 101 in the cleaning tank 1, and the filter tank 2 is inserted into the through hole 111 in the middle position of the annular step 11, and the annular support ear 21 surrounding the outside of the filter tank 2 is tightly attached to the upper end surface of the annular step 11 to limit the position of the filter tank 2 and prevent the filter tank 2 from shaking up and down in the cavity 101. At the same time, the limiting connecting rods 22 installed at both ends of the top of the filter tank 2 are respectively inserted into the two card slots 105 at the top of the cleaning tank 1, and the position of the filter tank 2 is limited by the limiting connecting rods 22 to prevent the filter tank 2 from shaking up and down in the cavity 101. The tank 2 rotates and shakes in the cleaning tank 1 following the movement of the rice. Finally, the tank cover 3 is threadedly installed on the top of the cleaning tank 1 through the threaded ring 104, so that the tank cover 3 is pressed against the top of the filter tank 2 and the limiting lug 17, further limiting the position of the filter tank 2 and ensuring the stability of the installation of the filter tank 2. Moreover, after washing the rice, the filter tank 2 can be directly taken out of the cleaning tank 1, and the rice in the filter tank 2 can be rinsed and collected, so that the rice can be accumulated at the bottom of the filter tank 2, avoiding the trouble of the washed rice adhering to the tank wall and being inconvenient to take out, further improving the washing effect of the rice, and having strong practicality.

[0026] In one embodiment, when the water pump 14 is used, each branch pipe 15 can be respectively inserted into the inside of the corresponding water outlet pipe 12, so that the first flange 121 on the outer wall of the water outlet pipe 12 and the second flange 151 on the outer wall of the branch pipe 15 fit together, and then the first flange 121 and the second flange 151 that fit together are fixed by the fastening bolts 16, thereby completing the connection between the branch pipe 15 and the water outlet pipe 12, and then the first stop valve 13 in each water outlet pipe 12 is opened in turn, so that the water pump draws rice washing water from different positions in the rinsing chamber 102 through the water pump 14, and the sundries and gravel floating in the rice washing water are extracted from the cleaning tank 1, so that the washed rice is not allowed to contact with the sundries such as gravel in the rice washing water, and the sundries such as gravel floating in the rice washing water are prevented from settling on the rice pile, thereby avoiding the trouble of re-filtering and screening the rice in the subsequent sequence due to the sundries such as gravel floating in the rice washing water settling on the rice pile, thereby saving time and labor, and improving the efficiency of rice cleaning.

[0027] The working principle of the utility model is as follows: when washing rice, water can be firstly poured into the washing tank 1, and water can be allowed to enter the inner cavity of the filter tank 2 from the filter hole 201 on the filter tank 2, and then the rice can be poured into the filter tank 2 to contact with the water, and then the motor 31 can be driven to work to drive the drive shaft 32 at its output end to rotate, and drive the stirring blade 33 installed on the drive shaft 32 to rotate in the filter tank 2, so as to stir the rice in the filter tank 2 to move in the water, so that the rice can fully contact with the water, and the dust on the surface of the rice can be washed, so that the gravel and other sundries mixed in the rice can float in the water and move to the rinsing chamber 102 and the reserved chamber 103 under the action of centrifugal force, and then the first stop valve 13 in each water outlet pipe 12 can be opened in sequence, so that the water pump can extract the rice washing water at different positions in the rinsing chamber 102 through the pumping pipe 14, and the sundries and gravel floating in the rice washing water can be extracted out of the washing tank 1, and then the second stop valve 13 can be opened. 19, the rice in the reserved chamber 103 is allowed to flow into the drain pipe 18 under the action of its own gravity, and is discharged from the drain pipe 18 to the outside of the cleaning tank 1, thereby completing the filtration of the rice and the discharge of the rice washing water, thereby completing the cleaning of the rice, and the rice can be filtered in the filter tank 2 when being washed, and the gravel and other sundries mixed in the rice are allowed to float to the rinsing chamber 102 and the reserved chamber 103 with the movement of the rice washing water, and then the rice washing water in the rinsing chamber 102 and the reserved chamber 103 is extracted, and the rice washing water and the gravel and other sundries floating therein are discharged to the outside, so that the washed rice is not allowed to contact with the gravel and other sundries in the rice washing water, and the gravel and other sundries floating in the rice washing water are prevented from settling on the rice pile, and the trouble of re-filtering and screening the rice in the subsequent sequence due to the gravel and other sundries floating in the rice washing water being settling on the rice pile is avoided, which saves time and labor, and improves the cleaning effect of the rice.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cleaning device for rice starch production, comprising: A cleaning tank (1), a filtering tank (2) and a tank cover (3), characterized in that a cavity (101) is provided inside the cleaning tank (1), an annular step (11) is provided on the inner wall of the cavity (101), the filtering tank (2) is inserted into the inner part of the annular step (11) and is engaged with the upper end surface thereof, and a plurality of filter holes (201) are evenly provided on the outer wall of the filtering tank (2) and are connected with the inner cavity thereof, a rinsing cavity (102) is provided between the outer wall of the filtering tank (2) located above the annular step (11) and the inner wall of the cavity (101), and the filtering tank A reserved cavity (103) is provided between the outer wall of the filter tank (2) located below the annular step (11) and the inner wall of the cavity (101); the inner cavity of the filter tank (2) is connected to the rinsing cavity (102) and the reserved cavity (103) through the filter hole (201); and a plurality of water outlet pipes (12) are evenly arranged at positions corresponding to the outer wall of the cleaning tank (1) and the rinsing cavity (102); the water outlet pipes (12) penetrate the cleaning tank (1) and are connected to the rinsing cavity (102); and a water outlet pipe (12) connected to the reserved cavity (103) is arranged at the bottom of the cleaning tank (1). A drain pipe (18) is connected to the cleaning tank (1), wherein the drain pipe (18) and the plurality of water outlet pipes (12) are respectively provided with a second stop valve (19) and a first stop valve (13), and a water extraction pipe (14) is provided on one side of the cleaning tank (1), and branch pipes (15) are provided at positions corresponding to the outer wall of the water extraction pipe (14) and the plurality of water outlet pipes (12), and one end of the branch pipe (15) away from the water extraction pipe (14) is installed at the end of the water outlet pipe (12) and is connected thereto, and the water extraction pipe (14) is connected to the drainage tank (18) through the branch pipe (15) and the water outlet pipe (12). The washing chamber (102) is connected, the end of the water pump (14) away from the branch pipe (15) is installed at the input end of the water pump, the tank cover (3) is threadedly installed on the top of the cleaning tank (1) and pressed tightly against the upper end surface of the filtering tank (2), and a motor (31) is arranged on the top of the tank cover (3), and a driving shaft (32) is arranged at the output end of the motor (31), the driving shaft (32) passes through the tank cover (3) and extends to the interior of the filtering tank (2), and a stirring blade (33) is arranged on the outer wall of the driving shaft (32) located inside the filtering tank (2).

2. A cleaning device for rice starch production according to claim 1, characterized in that, A through opening (111) is provided at the center of the annular step (11), the filter tank (2) is inserted into the through opening (111), and the upper end surface of the filter tank (2) is flush with the upper end surface of the cleaning tank (1).

3. A cleaning device for rice starch production according to claim 2, characterized in that, The bottom of the outer wall of the filter tank (2) is provided with an annular support ear (21) for defining its position, and the end surface area of ​​the annular support ear (21) is larger than the opening area of ​​the through port (111).

4. A cleaning device for rice starch production according to claim 1, characterized in that, Two symmetrically distributed limiting connecting rods (22) are arranged on the top of the outer wall of the filter tank (2); a clamping groove (105) is provided at a position on the top of the cleaning tank (1) corresponding to the limiting connecting rod (22); one end of the limiting connecting rod (22) away from the filter tank (2) is clamped in the inside of the clamping groove (105), and one end of the limiting connecting rod (22) away from the filter tank (2) is flush with the outer wall of the cleaning tank (1).

5. A cleaning device for rice starch production according to claim 1, characterized in that, A limiting lug (17) is provided on the top of the cleaning tank (1), and a threaded ring (104) is provided on the portion of the outer wall of the cleaning tank (1) located above the limiting lug (17); the tank cover (3) is threadedly mounted on the top of the cleaning tank (1) through the threaded ring (104) and is tightly attached to the upper end surface of the limiting lug (17).

6. A cleaning device for rice starch production according to claim 3, characterized in that, The diameter of the annular support ear (21) is the same as the diameter of the inner cavity of the cavity (101), and the annular support ear (21) fits against the inner wall of the cavity (101).

7. A cleaning device for rice starch production according to claim 1, characterized in that, The branch pipe (15) is inserted into the inside of the water outlet pipe (12), and a first flange (121) is provided at one end of the water outlet pipe (12) located outside the cleaning tank (1), and a second flange (151) is provided on the outer wall of the branch pipe (15) located on one side of the first flange (121), the second flange (151) is attached to the outer wall of the first flange (121), and a fastening bolt (16) is provided on one side of the second flange (151), and the fastening bolt (16) passes through the second flange (151) and is threadedly installed inside the first flange (121).