Rice huller for rice processing

Abstract

The utility model relates to a rice huller for rice processing, which comprises a granary, a feeding hopper is arranged on the granary, a chamber for hulling grains is arranged in the granary, a hull breaking unit is arranged in the chamber, and a vibrating screen located below the hull breaking unit is arranged in the chamber; a conveying pipe communicated with the cavity is arranged at the bottom of the granary, a filter drum is arranged in the conveying pipe, an auger is arranged in the filter drum, a through hole communicated with the cavity is formed in the filter drum, and the auger is used for conveying grains in the filter drum in the length direction of the conveying pipe; the air blowing part is respectively communicated with the cavity and the conveying pipe; through cooperative work of the filter cylinder, the auger, the air blowing part and the dust suction part, dust and rice husks in the cavity and the conveying pipe are effectively removed, so that secondary winnowing and filtering are conducted on hulled brown rice, the screening efficiency is further improved, and thorough separation of the brown rice and the rice husks is ensured.

Description

Technical Field

[0001] This application relates to the field of rice processing technology, and in particular to a rice huller for rice processing. Background Technology

[0002] In the rice processing industry, the rice huller, as a device that removes the husks from paddy to obtain brown rice, directly affects the quality and efficiency of subsequent rice processing.

[0003] In practical use, some existing rice hullers typically separate brown rice from rice husks using simple sieving or air separation after the rice has been hulled. However, because rice husks are light and fragile, they easily mix with brown rice during the separation process, resulting in some husks mixed in with the brown rice. This incomplete separation not only affects the purity of the brown rice and reduces the quality of subsequent processing, but also increases the burden on subsequent processing steps and reduces overall processing efficiency.

[0004] To address the aforementioned issues, a rice hulling machine for rice processing has been designed. Utility Model Content

[0005] This application provides a rice huller for rice processing to solve the problem that some existing rice hullers in the related art usually use simple screening or air separation to separate brown rice and rice husks after the rice is hulled, resulting in some rice husks mixed in with the brown rice.

[0006] In a first aspect, a rice huller for rice processing is provided, comprising:

[0007] A grain silo is equipped with a feeding hopper. The grain silo has a chamber for dehulling grains. The chamber is equipped with a hulling unit for dehulling grains. The chamber is also equipped with a vibrating screen located below the hulling unit for screening the dehulled grains.

[0008] The bottom of the grain silo is provided with a conveying pipe that communicates with the chamber. A filter cylinder is provided inside the conveying pipe, and an auger is provided inside the filter cylinder. The filter cylinder has a through hole that communicates with the chamber. The auger is used to convey the grain inside the filter cylinder along the length of the conveying pipe.

[0009] The blowing section is connected to the chamber and the conveying pipe respectively, and is used to blow air into the chamber and the conveying pipe to blow up the rice husks;

[0010] The dust collection unit includes a dust collection chamber disposed on the upper part of the conveying pipe and an air suction pipe disposed above the dust collection chamber. The dust collection chamber is connected to the filter cartridge, and the air suction pipe is connected to the chamber and the dust collection chamber respectively, for adsorbing dust and chaff inside the chamber and the dust collection chamber.

[0011] In some embodiments, the filter cartridge is cylindrical and has vent holes for gas flow, and a slag discharge hole is provided above the filter cartridge;

[0012] The filter cartridge is located above the inside of the conveying pipe, and the filter cartridge divides the conveying pipe to form a ventilation chamber;

[0013] The filter cartridge is provided with a discharge pipe, and the other end of the discharge pipe extends to the outside of the conveying pipe.

[0014] In some embodiments, the air blowing section includes a main air supply pipe, which is connected to two symmetrically arranged air distribution pipes. The upper air distribution pipe is connected to the chamber, and the lower air distribution pipe is connected to the ventilation chamber.

[0015] The other end of the main gas supply pipeline is connected to the air outlet of an external fan.

[0016] In some embodiments, the suction pipe includes multiple suction pipes communicating with the dust collection chamber, a main exhaust pipe is connected between the tops of the multiple suction pipes, a second suction pipe is provided on the main exhaust pipe, and the second suction pipe is communicating with the chamber.

[0017] The other end of the main exhaust pipe is connected to the dust collection box. A second fan is installed on the dust collection box. The air inlet of the second fan is connected to the dust collection box. A filter screen is installed at the air inlet of the second fan.

[0018] In some embodiments, the auger includes a spiral conveying rod rotatably disposed inside the filter cartridge, and a drive motor disposed on the conveying pipe, the output shaft of the drive motor being connected to one end of the spiral conveying rod.

[0019] In some embodiments, the vibrating screen includes two mounting seats disposed opposite each other inside the chamber, the mounting seats being provided with a plurality of springs, a fixing plate being disposed between the tops of the plurality of springs on the same side, a filter screen being disposed between the tops of the two fixing plates, and a vibrating motor being disposed at the bottom of the fixing plate.

[0020] In some embodiments, the shell-breaking unit includes two rotating shafts rotatably disposed inside the chamber, with rubber rollers mounted on the shafts and a gap between the two rubber rollers. Two guide plates are disposed opposite each other inside the chamber, and the guide plates are used to guide the rice grains into the gap between the two rubber rollers.

[0021] The silo is equipped with a shell, one end of the rotating shaft extends into the interior of the shell, and a second drive motor is installed on the shell. The output shaft of the second drive motor is connected to any of the rotating shafts.

[0022] The rotating shaft is equipped with pulleys located inside the housing, and the two pulleys are driven by a belt.

[0023] In some embodiments, the top of the filter cartridge is provided with a feed pipe communicating with the chamber, the conveying pipe is inclined, the end of the conveying pipe away from the feed hole is inclined upward, and the discharge pipe of the filter cartridge is located at the inclined end of the conveying pipe.

[0024] This application provides a rice huller for rice processing. Through the coordinated operation of the filter cylinder, auger, air blowing unit, and dust suction unit, it effectively removes dust and husks from the chamber and conveying pipe, thereby performing secondary air separation filtration on the hulled brown rice, further improving screening efficiency and ensuring complete separation of brown rice from the husks. Simultaneously, it reduces dust emissions, lowers the risk of dust inhalation for operators, and protects their health.

[0025] Through multiple screening and adsorption processes, the purity of the brown rice is ensured, and its quality is improved. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this application;

[0028] Figure 2 A front sectional view provided for an embodiment of this application;

[0029] Figure 3 This is a front sectional view of the conveying pipe connection structure provided in the embodiments of this application;

[0030] Figure 4 A three-dimensional schematic diagram of the connection structure of the delivery pipe, air blowing section and dust suction section provided in an embodiment of this application;

[0031] Figure 5 This is a top sectional view of the shell-breaking unit provided in an embodiment of this application.

[0032] In the diagram: 1. Grain bin; 2. Chamber; 3. Crushing unit; 4. Vibrating screen; 5. Conveying pipe; 6. Filter cartridge; 61. Slag discharge hole; 62. Ventilation chamber; 63. Discharge pipe; 7. Screw conveyor; 8. Air blowing unit; 81. Main air supply pipe; 82. Air distribution pipe; 9. Dust collection unit; 91. Dust collection chamber; 92. Suction pipe; 921. Extraction pipe; 922. Main exhaust pipe; 923. Second extraction pipe; 924. Dust collection box; 31. Rotating shaft; 32. Guide plate; 33. Rubber roller; 34. Shell; 35. Drive motor II; 36. Pulley. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] This application provides a rice huller for rice processing, which solves the problem in some existing rice hullers that, after the rice is hulled, usually use simple screening or air separation to separate brown rice and rice husks, resulting in some rice husks mixed in with the brown rice.

[0035] Please see Figures 1-3 A rice huller for rice processing includes: a grain bin 1 with a feeding hopper thereon; the grain bin 1 has a chamber 2 for dehulling grains inside; the chamber 2 has a hulling unit 3 inside; the hulling unit 3 is used for dehulling grains; and the chamber 2 has a vibrating screen 4 located below the hulling unit 3 inside; the vibrating screen 4 is used for screening the hulled grains.

[0036] The bottom of the grain bin 1 is provided with a conveying pipe 5 that communicates with the chamber 2. A filter cylinder 6 is provided inside the conveying pipe 5. An auger 7 is provided inside the filter cylinder 6. The filter cylinder 6 has a through hole that communicates with the chamber 2. The auger 7 is used to convey the grain inside the filter cylinder 6 along the length of the conveying pipe 5.

[0037] The air blowing section 8 is connected to the chamber 2 and the conveying pipe 5 respectively, and is used to blow air into the chamber 2 and the conveying pipe 5 to blow up the rice husks;

[0038] The dust collection unit 9 includes a dust collection chamber 91 disposed on the upper part of the conveying pipe 5 and an air suction pipe 92 disposed above the dust collection chamber 91. The dust collection chamber 91 is connected to the filter cartridge 6, and the air suction pipe 92 is connected to the chamber 2 and the dust collection chamber 91 respectively, for adsorbing dust and chaff inside the chamber 2 and the dust collection chamber 91.

[0039] Grain feeding and hulling:

[0040] Grain enters the internal chamber 2 of grain silo 1 through the feed hopper on grain silo 1.

[0041] The hulling unit 3 dehulls the grains in chamber 2, separating the outer husks from the inner brown rice.

[0042] Preliminary screening and air blowing treatment:

[0043] The hulled grain mixture, containing brown rice and husks, falls into a vibrating screen 4 located below the hulling unit 3. The vibrating screen 4, through vibration, partially separates the husks from the brown rice. Simultaneously, the air blowing unit 8 blows air into the chamber 2 and the conveying pipe 5, blowing up the husks and dust. The suction pipe 92 adsorbs and removes the blown-up husks and dust from the chamber 2, initially purifying the environment within the chamber 2.

[0044] Grain conveying and secondary screening:

[0045] After initial screening, the brown rice and residual husks enter the filter cartridge 6 inside the conveying pipe 5. As the auger 7 inside the filter cartridge 6 rotates, it transports the brown rice and residual husks along the length of the conveying pipe 5. Simultaneously, the air blowing unit 8 continues to blow air into the conveying pipe 5. The through holes on the filter cartridge 6 allow the gas to pass through, blowing up the transported husks and dust, causing them to float in the dust collection chamber 91. The dust collection pipe 92 then adsorbs the husks and dust inside the dust collection chamber 91. This process achieves secondary air separation filtration, further improving the purity of the brown rice.

[0046] Through the coordinated operation of the filter cartridge 6, auger 7, air blowing unit 8, and dust suction unit 9, dust and husks inside chamber 2 and conveying pipe 5 are effectively removed, thus performing secondary air separation filtration on the hulled brown rice, further improving screening efficiency and ensuring complete separation of brown rice from husks. At the same time, it reduces dust emissions, lowers the risk of dust inhalation for operators, and protects their health.

[0047] Through multiple screening and adsorption processes, the purity of the brown rice is ensured, and its quality is improved.

[0048] By combining the shelling unit 3 and the vibrating screen 4, efficient dehulling and preliminary screening of grains are achieved.

[0049] like Figure 2 and Figure 3 As shown, the filter cylinder 6 in this embodiment is cylindrical and has ventilation holes for gas flow. A slag discharge hole 61 is provided on the top of the filter cylinder 6. The filter cylinder 6 is located above the inside of the conveying pipe 5, and the filter cylinder 6 separates the conveying pipe 5 to form a ventilation chamber 62. A discharge pipe 63 is provided on the filter cylinder 6, and the other end of the discharge pipe 63 extends to the outside of the conveying pipe 5.

[0050] The auger 7 inside the filter cartridge 6 begins to rotate, conveying the brown rice and residual husks within the cartridge. Due to differences in density, size, and other physical properties between the husks and brown rice, some of the husks begin to separate from the brown rice under the action of the auger 7. The filter cartridge 6 is equipped with ventilation holes that allow gas to flow. Simultaneously, the air blowing unit 8 blows air into the conveying pipe 5. The gas enters the filter cartridge 6 through the ventilation chamber 62 and the ventilation holes, further agitating the husks and dust, making it easier for them to separate from the brown rice.

[0051] Gas carrying rice husks and dust enters the dust collection chamber 91 through the slag discharge hole 61 of the filter cartridge 6. The dust collection chamber 91 provides a temporary storage space for the gas, rice husks, and dust. Under the adsorption effect of the suction pipe 92, the rice husks and dust are effectively adsorbed.

[0052] like Figure 2 and Figure 4 As shown, in one embodiment, the air blowing section 8 includes a main air supply pipe 81, and two symmetrically arranged air distribution pipes 82 are connected to the main air supply pipe 81. The upper air distribution pipe 82 is connected to the chamber 2, and the lower air distribution pipe 82 is connected to the ventilation chamber 62. The other end of the main air supply pipe 81 is connected to the air outlet of an external fan.

[0053] After the external fan starts, it generates an airflow with a certain pressure and delivers the airflow to the main air supply pipe 81, which is connected to the air outlet. The main air supply pipe 81 serves as the main channel for gas delivery, stably guiding the airflow generated by the external fan to the subsequent distribution pipe 82.

[0054] The main gas supply pipe 81 is connected to two symmetrically arranged gas distribution pipes 82. When the gas flow enters the main gas supply pipe 81, it will enter the two gas distribution pipes 82 respectively.

[0055] The upper air distribution pipe 82 is connected to the chamber 2. The airflow entering the air distribution pipe 82 will enter the interior of the chamber 2 through its connection with the chamber 2. In the chamber 2, the airflow can act on impurities such as rice husks and dust, blowing them up so that they are more easily adsorbed by the subsequent dust collection unit 9.

[0056] The lower air distribution pipe 82 is connected to the ventilation chamber 62, and the airflow entering the air distribution pipe 82 will enter the ventilation chamber 62. In the ventilation chamber 62, the airflow can enter the interior of the filter cartridge 6 through the air vents on the filter cartridge 6, blowing air onto the mixture of rice husks and brown rice inside the filter cartridge 6, further promoting the separation of rice husks and brown rice, and at the same time blowing up some rice husks and dust, making it easier for the dust collection unit 9 to adsorb them.

[0057] like Figure 3 and Figure 4As shown, in one embodiment, the suction pipe 92 includes a plurality of suction pipes 921 communicating with the dust collection chamber 91. A main exhaust pipe 922 is connected between the tops of the plurality of suction pipes 921. A second suction pipe 923 is provided on the main exhaust pipe 922 and is connected to the chamber 2. The other end of the main exhaust pipe 922 is connected to the dust collection box 924. A second fan is provided on the dust collection box 924. The air inlet of the second fan is connected to the dust collection box 924, and a filter screen is provided at the air inlet of the second fan.

[0058] The suction chamber 91 contains blown-up rice husks and dust. Multiple suction pipes 921 are connected to the suction chamber 91. When the second fan is started, the negative pressure generated by the second fan draws the gas, along with the rice husks and dust, into the suction chamber 91 through the suction pipes 921. The tops of the multiple suction pipes 921 are connected to a main exhaust pipe 922, so the gas and impurities drawn in from each suction pipe 921 converge into the main exhaust pipe 922.

[0059] The second exhaust pipe 923 is connected to the chamber 2. Under the influence of the negative pressure generated by the second fan, the rice husks and dust blown up in the chamber 2 also enter the main exhaust pipe 922 through the second exhaust pipe 923.

[0060] The main exhaust pipe 922 delivers the mixture of gas, chaff, and dust from the suction chamber 91 and chamber 2 to the dust collection box 924. The dust collection box 924 serves as a temporary storage container to collect this mixture.

[0061] A filter screen is installed at the air inlet of fan two. The filter screen can block impurities such as rice husks and dust, allowing only purified gas to pass through. Finally, the gas is discharged from fan two into the external environment.

[0062] like Figure 3 and Figure 4 As shown, in one embodiment, the auger 7 includes a spiral conveying rod rotatably disposed inside the filter cartridge 6, and a drive motor disposed on the conveying pipe 5, the output shaft of the drive motor being connected to one end of the spiral conveying rod.

[0063] When the drive motor starts, its output shaft begins to rotate. Since the output shaft of the drive motor is directly connected to one end of the screw conveyor, according to the principle of mechanical transmission, the rotational power of the drive motor will be transmitted to the screw conveyor through the output shaft, so that the screw conveyor will obtain the power to rotate.

[0064] The screw conveyor is located inside the filter cylinder 6. When it starts to rotate, the screw blades on its surface exert a pushing force on the materials such as brown rice and residual husks inside the filter cylinder 6. Driven by the screw blades, the materials are conveyed along the axial direction of the filter cylinder 6.

[0065] As the screw conveyor continues to rotate, the material is constantly transported from one end of the filter cylinder 6 to the other. During this process, the material tumbles and moves continuously inside the filter cylinder 6, which is beneficial for further separation of the husk and brown rice.

[0066] like Figure 2 As shown, in one embodiment, the vibrating screen 4 includes two mounting seats disposed opposite each other inside the chamber 2. Multiple springs are provided on the mounting seats. A fixing plate is provided between the tops of the multiple springs on the same side. A filter screen is provided between the tops of the two fixing plates. A vibration motor is provided at the bottom of the fixing plate.

[0067] When it is necessary to screen the grains, the vibrating motor at the bottom of the fixed plate is activated. Once the vibrating motor starts working, it will generate periodic excitation force.

[0068] The vibration force generated by the vibrating motor is transmitted to the spring through the fixed plate. As an elastic element, the spring undergoes periodic compression and stretching deformation under the vibration force. This elastic deformation of the spring causes the fixed plate and the filter screen fixed to it to vibrate vertically. Under the vibration of the filter screen, the grains continuously bounce and move on it. The pore size of the filter screen allows brown rice to pass through.

[0069] like Figure 2 and 5 As shown, the shell-breaking unit 3 in this embodiment includes two rotating shafts 31 rotatably disposed inside the chamber 2. Each rotating shaft 31 is equipped with a rubber roller 33, and there is a gap between the two rubber rollers 33. Two guide plates 32 are disposed opposite each other inside the chamber 2, and the guide plates 32 are used to guide the rice grains into the gap between the two rubber rollers 33. A housing 34 is disposed on the grain silo 1. One end of each rotating shaft 31 extends into the housing 34. A second drive motor 35 is disposed on the housing 34, and the output shaft of the second drive motor 35 is connected to either rotating shaft 31. A pulley 36 is disposed on each rotating shaft 31 inside the housing 34, and the two pulleys 36 are driven by a belt.

[0070] After the rice is put into chamber 2, the two guide plates 32 arranged opposite each other inside chamber 2 play a guiding role, which can accurately guide the rice to the gap between the two rubber rollers 33, ensuring that the rice can smoothly enter the hulling area.

[0071] After the second drive motor 35 mounted on the housing 34 is started, its output shaft is connected to any one of the rotating shafts 31, driving the rotating shaft 31 to start rotating. When the second drive motor 35 drives one rotating shaft 31 to rotate, the pulley 36 on that rotating shaft 31 will also rotate. Through the transmission action of the belt, the power is transmitted to the pulley 36 on the other rotating shaft 31, thereby enabling the two rotating shafts 31 to rotate relative to each other.

[0072] Two rotating shafts 31 rotate relative to each other, causing the rubber rollers 33 mounted on the shafts 31 to rotate relative to each other as well. There is a certain gap between the rubber rollers 33. When the rice is guided into the gap between the two rubber rollers 33, the outer shell of the rice is broken open under the squeezing and friction of the rubber rollers 33, thus realizing the rice hulling operation.

[0073] like Figure 2 and Figure 3 As shown, in another embodiment, the top of the filter cartridge 6 is provided with a feed pipe communicating with the chamber 2, the conveying pipe 5 is inclined, the end of the conveying pipe 5 away from the feed hole is inclined upward, and the discharge pipe 63 of the filter cartridge 6 is located at the inclined end of the conveying pipe 5.

[0074] The mixture of brown rice and rice husks enters the filter cartridge 6 through the feed pipe under the action of gravity.

[0075] The conveying pipe 5 is set at an angle, with the end away from the feed hole tilting upwards. This tilt is conducive to moving smoothly to the higher part of the conveying pipe 5 under the action of subsequent driving force, which facilitates the subsequent collection of brown rice.

[0076] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0077] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A rice huller for rice processing, characterized by, It includes: The silo (1) is provided with a feed hopper, and the inside of the silo (1) has a chamber (2) for grain hulling, and the inside of the chamber (2) is provided with a hulling unit (3) for grain hulling, and the inside of the chamber (2) is provided with a vibrating screen (4) below the hulling unit (3), which is used for screening the hulling grain; The bottom of the silo (1) is provided with a conveying pipe (5) communicating with the chamber (2), and the inside of the conveying pipe (5) is provided with a filter cylinder (6), and the inside of the filter cylinder (6) is provided with an auger (7), and the filter cylinder (6) has a through hole communicating with the chamber (2), and the auger (7) is used for conveying the grain in the filter cylinder (6) along the length of the conveying pipe (5); The air blowing part (8) is respectively communicated with the chamber (2) and the conveying pipe (5), and is used for blowing air into the chamber (2) and the conveying pipe (5), and blowing up the chaff; The dust suction part (9) includes a dust suction chamber (91) arranged on the upper part of the conveying pipe (5), and a suction pipeline (92) arranged above the dust suction chamber (91), the dust suction chamber (91) is communicated with the filter cylinder (6), and the suction pipeline (92) is respectively communicated with the chamber (2) and the dust suction chamber (91), and is used for adsorbing the dust and chaff in the chamber (2) and the dust suction chamber (91).

2. The huller for rice processing according to claim 1, characterized in that: The filter cylinder (6) is cylindrical, and is provided with a vent hole for air flow, and the filter cylinder (6) is provided with a residue discharge hole (61) above; The filter cylinder (6) is located above the inside of the conveying pipe (5), and the filter cylinder (6) divides the conveying pipe (5) to form an air chamber (62); The filter cylinder (6) is provided with a discharge pipe (63), and the other end of the discharge pipe (63) extends to the outside of the conveying pipe (5).

3. The huller for rice processing according to claim 2, characterized in that: The air blowing part (8) includes a gas supply main pipeline (81), and the gas supply main pipeline (81) is communicated with two symmetrical gas distribution pipes (82) above and below, the upper gas distribution pipe (82) is communicated with the chamber (2), and the lower gas distribution pipe (82) is communicated with the air chamber (62); The other end of the gas supply main pipeline (81) is communicated with the air outlet of the external air blower.

4. The huller for rice processing according to claim 1, characterized in that: The suction pipeline (92) includes a plurality of suction pipes (921) communicated with the dust suction chamber (91), and the top of the plurality of suction pipes (921) is communicated with a main exhaust pipe (922), and the main exhaust pipe (922) is provided with a second suction pipe (923), and the second suction pipe (923) is communicated with the chamber (2). The main exhaust pipe (922) is communicated with a dust collecting box (924), a fan two is arranged on the dust collecting box (924), an air inlet of the fan two is communicated with the dust collecting box (924), and a filter screen is arranged at the air inlet of the fan two.

5. The rice huller according to claim 1, wherein: The auger (7) comprises a spiral conveying rod rotatably arranged in the filter cylinder (6), and a driving motor arranged on the conveying pipe (5), and an output shaft of the driving motor is connected with one end of the spiral conveying rod.

6. The rice huller according to claim 1, wherein: The vibrating screen (4) comprises two mounting seats oppositely arranged in the chamber (2), a plurality of springs are arranged on the mounting seats, a fixed plate is arranged between the top portions of the springs on the same side, a filter screen is arranged between the top portions of the two fixed plates, and a vibrating motor is arranged at the bottom of the fixed plate.

7. The rice huller according to claim 1, wherein: The hulling unit (3) comprises two rotating shafts (31) oppositely arranged in the chamber (2), rubber rollers (33) are arranged on the rotating shafts (31), the rubber rollers (33) have a gap therebetween, and two guide plates (32) are oppositely arranged in the chamber (2), and the guide plates (32) are used for guiding the rice into the gap between the rubber rollers (33); A shell (34) is arranged on the granary (1), one end of the rotating shaft (31) extends into the shell (34), a driving motor two (35) is arranged on the shell (34), and an output shaft of the driving motor two (35) is connected with any rotating shaft (31); A belt pulley (36) is arranged on the rotating shaft (31) and located in the shell (34), and the two belt pulleys (36) are driven by a belt.

8. The rice huller according to claim 2, wherein: A feeding pipe is arranged at the top of the filter cylinder (6) and communicated with the chamber (2), the conveying pipe (5) is arranged in an inclined manner, the conveying pipe (5) is inclined upward at the end away from the feeding hole, and the discharge pipe (63) of the filter cylinder (6) is located at the end of the conveying pipe (5) inclined upward.

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