A rice polishing and milling integrated processing system

Abstract

The application discloses a kind of rice processing system of hulling and milling integration, including feed hopper, hulling assembly, rice milling assembly and the impurity removal cylinder of connecting hulling outlet and rice milling import, the side of the impurity removal cylinder is connected with the impurity removal pipe, the side of the impurity removal cylinder is set with the blast pipe corresponding with the position of the impurity removal pipe, the bottom of the impurity removal pipe is provided with broken rice collection groove, the broken rice collection groove is communicated with the feed end of the impurity removal cylinder by rice guide pipe, the rice guide pipe is provided with humidification tank for the surface of broken rice and freezing cylinder for the surface water freezing of broken rice, the rice processing system of hulling and milling integration in the application can carry out continuous processing of hulling and rice milling of grain, remove impurities and collect broken rice after hulling, carry out milling treatment with brown rice after humidification and freezing of broken rice, improve the quality of rice milling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rice processing, and particularly relates to a combined hulling and milling rice processing system. BACKGROUND

[0002] The rice processing process is generally divided into cleaning, hulling, milling, grading and finished product processing procedures to obtain milled rice. The hulling is used to remove the husks of the rice to obtain brown rice, and air blowing is needed after the hulling to remove impurities and separate the brown rice from the rice and the broken rice produced in the hulling. The milling is used to peel and polish the brown rice to obtain milled rice. In the process of polishing the brown rice, the husks of the brown rice are removed by friction between the brown rice and the polishing disc and the brown rice, and there are gaps between the brown rice particles, resulting in incomplete contact friction between the brown rice, and the friction effect between the rice particles is not ideal. Moreover, the brown rice is dried after the hulling and the air blowing, and the dried husks are prone to cracking after the polishing and the pressure rising, which is not conducive to the smooth surface of the rice. SUMMARY

[0003] The present application aims to solve the problem of cracking of the surface of the brown rice after the hulling in the prior art, and provides a combined hulling and milling rice processing system.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A combined hulling and milling rice processing system, comprising a feeding hopper, a hulling assembly, a milling assembly and a foreign matter removing cylinder connected between the hulling outlet and the milling inlet.

[0006] Specifically, the hulling assembly comprises a hulling top disc and a hulling bottom disc which are relatively rotatable, the hulling top disc is connected with the rack in the axial direction through a hulling adjusting cylinder, the hulling bottom disc is rotatably connected with the rack, and the rack is provided with a hulling motor for driving the rotation of the hulling bottom disc. The hulling top disc and the hulling bottom disc form a hulling channel between the opposite surfaces thereof, and the hulling adjusting cylinder is used to adjust the size of the gap of the hulling channel. The rice passes through the space between the relatively rotated hulling top disc and hulling bottom disc to obtain brown rice.

[0007] Preferably, a friction space is further arranged between the hulling top disc and the hulling bottom disc, and the friction space is located in front of the rice inlet of the hulling channel. The friction space is used for friction between the rice particles and for pre-wearing of the husks of the rice.

[0008] Further, the rice milling assembly comprises a fixedly arranged rice milling top disc and a rotationally arranged rice milling bottom disc, the rice milling top disc is connected with the frame in the axial direction through a rice milling adjusting cylinder, the rice milling bottom disc is rotationally connected with the frame, and the frame is provided with a rice milling motor for driving the rotation of the rice milling bottom disc. The rice milling top disc and the rice milling bottom disc form a rice milling channel between the opposite surfaces thereof, and the rice milling adjusting cylinder is used for adjusting the gap size of the rice milling channel. The brown rice passes between the rice milling top disc and the rice milling bottom disc after relative rotation to obtain the milled rice.

[0009] Further, the husking top disc, the husking bottom disc, the rice milling top disc and the rice milling bottom disc are coaxially arranged. The impurity removing cylinder is located between the husking bottom disc and the rice milling bottom disc and is fixedly connected with the frame. The number of the impurity removing cylinders is multiple, and the multiple impurity removing cylinders are arranged in a ring shape on the frame. The top of the impurity removing cylinder is provided with a collecting ring, and the collecting ring is used for connecting the outlet of the husking channel between the husking top disc and the husking bottom disc and the inlet of each impurity removing cylinder. The bottom of the impurity removing cylinder is provided with a dispersing ring, and the dispersing ring is used for connecting the inlet of the rice milling channel between the rice milling top disc and the rice milling bottom disc and the outlet of each impurity removing cylinder.

[0010] One side of the above-mentioned impurity removing cylinder is connected with an impurity removing pipe, one side of the impurity removing cylinder is provided with a blowing pipe corresponding to the position of the impurity removing pipe, and the wind blown out by the blowing pipe can blow the husks and broken rice of the brown rice passing through the impurity removing cylinder into the impurity removing pipe and discharge the husks and broken rice through the impurity removing pipe.

[0011] Further, the bottom of the impurity removing pipe is provided with a broken rice collecting groove, the broken rice collecting groove is connected with the feeding end of the impurity removing cylinder through a rice guiding pipe, and the rice guiding pipe is provided with a humidifying box and a freezing cylinder for water on the surface of the broken rice. The broken rice collecting groove is used for collecting the broken rice, the humidifying box is used for wetting the surface of the broken rice, and the freezing cylinder is used for freezing the water on the surface of the broken rice. The rice guiding pipe can guide the broken rice into the feeding end of the impurity removing cylinder, and the broken rice will be subjected to humidification and freezing treatment before entering the impurity removing cylinder, so that ice rice particles are obtained. The ice rice particles have the weight of the ice blocks, so they will not be blown into the impurity removing pipe by the blowing pipe but will enter the rice milling channel between the rice milling top disc and the rice milling bottom disc to be subjected to the rice milling treatment together with the brown rice. In the rice milling channel, the temperature is increased, the ice on the surface of the ice rice particles is melted into water, the brown rice in the rice milling channel is wetted, the rice milling quality is improved, and the granularity of the broken rice is small, so the broken rice can fill the gaps between the brown rice and the friction between the rice grains is strengthened.

[0012] Preferably, the inside of the humidifying box is provided with a humidifying nozzle and a mesh screen, the upper space of the mesh screen is connected with the rice guiding pipe, the humidifying nozzle is located above the mesh screen, and a drain pipe is arranged below the mesh screen. The broken rice in the rice guiding pipe is wetted by the humidifying nozzle after passing through the mesh screen of the humidifying box, and the excess water on the surface of the broken rice is discharged from the drain pipe.

[0013] Preferably, the freezing cylinder comprises a fixed cylinder, a movable sleeve and a rotating sleeve arranged coaxially, the movable sleeve is communicated with the metering pipe, support springs are arranged between the inner wall of the fixed cylinder and the outer wall of the movable sleeve, the movable sleeve has a movable space between the fixed cylinder and the movable sleeve, and the movable sleeve is movable in the movable space and is always communicated with the metering pipe during the movement.

[0014] The inner wall of the rotating sleeve is rotationally and sealingly connected with the outer wall of the fixed cylinder, one end of the rotating sleeve is provided with a gear ring, and the rack is provided with a driving member for driving the gear ring to rotate. The fixed cylinder is provided with an inner air guide hole, the rotating sleeve is provided with an outer air guide hole for communicating with the inner air guide hole, the outer air guide hole is fixedly provided with an air guide groove outside, and the air guide groove is connected with external cold air. The number of the inner air guide holes in the circumferential direction is multiple rows, and the number of the outer air guide holes in the circumferential direction is single row. During the rotation of the rotating sleeve, the outer air guide hole passes through each row of inner air guide holes in the circumferential direction in turn, the outer air guide hole intermittently communicates the air guide groove and the movable space of the fixed cylinder, and the cold air can enter the movable space of the fixed cylinder from different directions in turn, so that a freezing environment is formed outside the movable sleeve, and the broken rice particles can be frozen in the movable sleeve; the cold air can also push the movable sleeve from different directions, so that the movable sleeve vibrates, the broken rice particles in the movable sleeve jump, the broken rice particles are prevented from adhering to each other in the movable sleeve, and it is ensured that the broken rice particles form single ice rice particles.

[0015] In order to maintain the continuous air inlet of the air guide groove, one side of the fixed cylinder is provided with a coaxial air guide ring, one side of the air guide ring is provided with a rotating ring plate which is rotationally and sealingly connected with the air guide ring, the inner space of the air guide ring is connected with a cold air inlet pipe, the cold air inlet pipe is connected with a refrigerator, and the air guide space of the air guide groove is communicated with the inner space of the air guide ring through an air inlet pipe. When the rotating sleeve and the air guide groove rotate, the rotating ring plate and the air inlet pipe rotate, and the cold air in the inner space of the air guide ring continuously enters the air guide groove.

[0016] Further, the rice milling outlet of the rice milling assembly is provided with a screening cylinder for screening the broken rice, the screening cylinder is provided with a screen plate, a broken rice outlet pipe and a milled rice outlet pipe, the upper space of the screen plate is communicated with the milled rice outlet pipe, and the lower space of the screen plate is communicated with the broken rice outlet pipe. After rice milling, the rice particles enter the screening cylinder from the rice milling outlet of the rice milling assembly, the screen plate screens the rice particles, the broken rice passes through the screen plate and is discharged from the broken rice outlet pipe, and the milled rice passes through the milled rice outlet pipe from above the screen plate and is collected.

[0017] The rice milling and screening integrated rice processing system can continuously process the grains of cereal, remove the impurities after hulling and collect the broken rice, and the broken rice particles can wet the brown rice and increase the moisture of the surface of the brown rice after being humidified and frozen, so that the surface friction between the brown rice is enhanced and the quality of the milled rice is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic diagram of a rice processing system with a combined hulling and milling function.

[0019] Figure 2 Fig. 2 is a structural schematic diagram of a humidifying box of the rice processing system with a combined hulling and milling function.

[0020] Figure 3 Fig. 3 is a structural schematic diagram of a freezing cylinder of the rice processing system with a combined hulling and milling function.

[0021] Figure 4 Fig. 4 is a structural schematic diagram of a cylindrical surface of the freezing cylinder of the rice processing system with a combined hulling and milling function.

[0022] Figure 5 Fig. 5 is a structural schematic diagram of a top view of a debris removal cylinder of the rice processing system with a combined hulling and milling function.

[0023] In the figure, 1 is a feeding hopper, 2 is a hulling top disc, 3 is a debris removal cylinder, 4 is a debris removal pipe, 5 is a blast pipe, 6 is a milling top disc, 7 is a rice guide pipe, 8 is a humidifying box, 9 is a freezing cylinder, 10 is a dispersing disc, 11 is a milling bottom disc, 12 is a hulling bottom disc, 13 is a screening cylinder, 14 is a broken rice collection tank, 15 is a material guide block, 21 is a hulling adjusting cylinder, 31 is a collection ring, 32 is a dispersing ring, 61 is a milling adjusting cylinder, 81 is a humidifying nozzle, 82 is a mesh screen, 83 is a drain pipe, 91 is a fixed cylinder, 92 is a movable sleeve, 93 is a supporting spring, 94 is a rotating sleeve, 95 is a gas guide groove, 96 is a gas guide ring, 911 is an inner gas guide hole, 941 is an outer gas guide hole, 942 is a gear ring, 951 is a gas guide space, 952 is an air inlet pipe, 961 is a rotating ring plate, 121 is a friction space, 122 is a hulling passage, 131 is a screen plate, and 132 is a broken rice outlet pipe and 133 is a milled rice outlet pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments.

[0025] Embodiment 1

[0026] Reference Figure 1 A rice processing system with a combined hulling and milling function includes a feeding hopper 1, a hulling assembly, a milling assembly, and a debris removal cylinder 3 connecting a hulling outlet and a milling inlet.

[0027] Specifically, the husking assembly includes a husking top disc 2 and a husking bottom disc 12 which are relatively rotatable, the husking top disc 2 is connected with the frame in the axial direction through a husking adjusting cylinder 21, the husking bottom disc 12 is rotatably connected with the frame, and the frame is provided with a husking motor for driving the husking bottom disc 12 to rotate. The husking top disc 2 and the husking bottom disc 12 form a husking channel 122 between the opposite surfaces thereof, and the husking adjusting cylinder 21 is used for adjusting the gap size of the husking channel 122. The husked rice is obtained by passing the husked rice between the husking top disc 2 and the husking bottom disc 12 after relative rotation.

[0028] The inside of the feeding hopper 1 is provided with a conical guide block 15 for guiding the rice in the feeding hopper 1 to the inlet of the husking channel 122.

[0029] Further, the milling assembly includes a fixedly arranged milling top disc 6 and a rotatably arranged milling bottom disc 11, the milling top disc 6 is connected with the frame in the axial direction through a milling adjusting cylinder 61, the milling bottom disc 11 is rotatably connected with the frame, and the frame is provided with a milling motor for driving the milling bottom disc 11 to rotate. The milling top disc 6 and the milling bottom disc 11 form a milling channel between the opposite surfaces thereof, and the milling adjusting cylinder 61 is used for adjusting the gap size of the milling channel. The milled rice is obtained by passing the husked rice between the milling top disc 6 and the milling bottom disc 11 after relative rotation.

[0030] Further, the husking top disc 2, the husking bottom disc 12, the milling top disc 6 and the milling bottom disc 11 are coaxially arranged. The impurity removing cylinder 3 is located between the husking bottom disc 12 and the milling bottom disc 11, and the impurity removing cylinder 3 is fixedly connected with the frame. Referring to Figure 1 and 5 The number of the impurity removing cylinder 3 is multiple, and the multiple impurity removing cylinders 3 are arranged in a ring around the frame. The top of the impurity removing cylinder 3 is provided with a collecting ring 31 for connecting the outlet of the husking channel 122 between the husking top disc 2 and the husking bottom disc 12 and the inlet of each impurity removing cylinder 3. The bottom of the impurity removing cylinder 3 is provided with a dispersing ring 32 for connecting the inlet of the milling channel between the milling top disc 6 and the milling bottom disc 11 and the outlet of each impurity removing cylinder 3.

[0031] One side of the above-mentioned impurity removing cylinder 3 is connected with the impurity removing pipe 4, and the other side of the impurity removing cylinder 3 is provided with a blast pipe 5 corresponding to the position of the impurity removing pipe 4, and the wind blown by the blast pipe 5 can blow the husked rice passing through the impurity removing cylinder 3 into the impurity removing pipe 4 and then discharged through the impurity removing pipe 4.

[0032] Further, the bottom of the impurity removal pipe 4 is provided with a broken rice collecting groove 14 for collecting broken rice, and the broken rice collecting groove 14 is communicated with the feeding end of the impurity removal cylinder 3 through a rice guide pipe 7. The rice guide pipe 7 includes a vertical spiral screw rice feeding pipe section and an inclined downward guide section, and a humidifying box 8 and a freezing cylinder 9 for surface water freezing of broken rice are arranged on the guide section, the guide section of the rice guide pipe 7 extends to the top of the impurity removal cylinder 3, and a dispersion disc 10 is arranged inside the guide section of the impurity removal cylinder 3 for dispersion of broken rice, so that the broken rice uniformly enters the impurity removal cylinder 3.

[0033] The humidifying box 8 is used for wetting the surface of broken rice, and the freezing cylinder 9 is used for freezing the surface water of broken rice. The rice guide pipe 7 can guide the broken rice into the feeding end of the impurity removal cylinder 3. Before entering the impurity removal cylinder 3, the broken rice will be subjected to humidification and freezing treatment in the humidifying box 8 and the freezing cylinder 9, and ice rice particles will be obtained. The ice rice particles have the weight of ice blocks, so they will not be blown by the air blowing pipe 5 to the impurity removal pipe 4, but will enter the milling channel between the milling top disc 6 and the milling bottom disc 11 to be milled together with the brown rice. In the milling channel, the temperature rises, the ice on the surface of the ice rice particles melts into water, which can wet the brown rice inside the milling channel, improve the milling quality, and at the same time, the particle size of the broken rice is small, which can fill the gaps between the brown rice and strengthen the friction between the rice particles.

[0034] Reference Figure 2 The inside of the humidifying box 8 is provided with a humidifying nozzle 81 and a mesh screen 82, the upper space of the mesh screen 82 is communicated with the rice guide pipe 7, the humidifying nozzle 81 is located above the mesh screen 82, and a drain pipe 83 is arranged below the mesh screen 82. The broken rice in the rice guide pipe 7 passes through the mesh screen 82 of the humidifying box 8 and is wetted by the humidifying nozzle 81, and the excess water on the surface of the broken rice is drained through the drain pipe 83.

[0035] Reference Figure 3 And Figure 4 The freezing cylinder 9 includes a fixed cylinder 91, a movable sleeve 92 and a rotating sleeve 94 arranged coaxially, the movable sleeve 92 is communicated with the rice guide pipe 7, support springs 93 are arranged between the inner wall of the fixed cylinder 91 and the outer wall of the movable sleeve 92, there is a movable space between the fixed cylinder 91 and the movable sleeve 92, the movable sleeve 92 can move inside the movable space, and the movable sleeve 92 always keeps communication with the rice guide pipe 7 during the movement.

[0036] The inner wall of the rotating sleeve 94 is in rotational sealing connection with the outer wall of the fixed cylinder 91, one end of the rotating sleeve 94 is provided with a gear ring 942, and the rack is provided with a driving member for driving the gear ring 942 to rotate. The fixed cylinder 91 is provided with an inner air guide hole 911, and the rotating sleeve 94 is provided with an outer air guide hole 941 for communicating with the inner air guide hole 911. The outer air guide hole 941 is fixedly provided with an air guide groove 95 outside, and the air guide groove 95 is connected with external cold air. The number of the inner air guide holes 911 in the circumferential direction is multiple rows, and the number of the outer air guide holes 941 in the circumferential direction is single row. During the rotation of the rotating sleeve 94, the outer air guide hole 941 passes through each row of inner air guide holes 911 in the circumferential direction in turn. The outer air guide hole 941 intermittently communicates the air guide groove 95 and the moving space of the fixed cylinder 91, and the cold air can enter the moving space of the fixed cylinder 91 from different directions in turn, so as to form a refrigeration environment outside the movable sleeve 92, and the broken rice particles can be frozen in the movable sleeve 92. The cold air can also push the movable sleeve 92 from different directions, so that the movable sleeve 92 vibrates, the broken rice particles in the movable sleeve 92 jump, the broken rice particles are prevented from adhering to each other in the movable sleeve 92, and it is ensured that the broken rice particles form single ice rice particles.

[0037] In order to keep the continuous air inlet of the air guide groove 95, with reference to Figure 4 , one side of the fixed cylinder 91 is provided with a coaxial air guide ring 96, one side of the air guide ring 96 is provided with a rotating ring plate 961 in rotational sealing connection with the air guide ring 96, and the inner space of the air guide ring 96 is connected with a cold air inlet pipe. The cold air inlet pipe is connected with a refrigerator, and the air guide space 951 of the air guide groove 95 is in communication with the inner space of the air guide ring 96 through an air inlet pipe 952. When the rotating sleeve 94 and the air guide groove 95 rotate, the rotating ring plate 961 and the air inlet pipe 952 follow the rotation, so that the cold air in the inner space of the air guide ring 96 continuously enters the air guide groove 95.

[0038] With reference to Figure 1 , the rice milling outlet of the rice milling assembly is provided with a screening cylinder 13 for screening broken rice. The screening cylinder 13 is provided with a sieve plate 131, a broken rice outlet pipe 132 and a milled rice outlet pipe 133. The upper space of the sieve plate 131 is in communication with the milled rice outlet pipe 133, and the lower space of the sieve plate 131 is in communication with the broken rice outlet pipe 132. After rice milling, the rice enters the screening cylinder 13 from the rice milling outlet of the rice milling assembly, the sieve plate 131 screens the rice, the broken rice passes through the sieve plate 131 and goes out from the broken rice outlet pipe 132, and the milled rice passes through the milled rice outlet pipe 133 from above the sieve plate 131 and is collected.

[0039] The working process of the rice milling and polishing integrated rice processing system in the embodiment is as follows:

[0040] Step one: adjust the gap of the husking passageway 122 between the husking top disc 2 and the husking bottom disc 12 by the husking adjusting cylinder 21, and adjust the gap of the milling passageway between the milling top disc 6 and the milling bottom disc 11 by the milling adjusting cylinder 61, so as to reach the target requirement.

[0041] Start the husking motor and the milling motor, so that the husking bottom disc 12 and the milling bottom disc 11 are in the rotating working state, open the air blowing pipe 5, and start the feeding motor of the rice guiding pipe 7 and the rotating driving part of the rotating sleeve 94.

[0042] Step two: the grains enter the husking passageway 122 between the husking top disc 2 and the husking bottom disc 12 from the feeding hopper 1, and are husked to obtain brown rice.

[0043] Step three: the brown rice enters the collecting ring 31, and then enters each impurity removing cylinder 3 from the collecting ring 31, the husks and broken rice of the brown rice passing through the impurity removing cylinder 3 are blown into the impurity removing pipe 4 by the air blown out by the air blowing pipe 5, and are discharged through the impurity removing pipe 4 to obtain clean brown rice.

[0044] At the same time, the broken rice falls into the broken rice collecting groove 14 of the impurity removing pipe 4, the broken rice is sent to the humidifying box 8 by the rice guiding pipe 7, the broken rice passes through the screen 82 of the humidifying box 8 and is wetted by the humidifying nozzle 81, then the wetted broken rice enters the movable sleeve 92 of the freezing cylinder 9, and the outer air guiding hole 941 of the rotating sleeve 94 passes through each row of inner air guiding hole 911 in the circumferential direction in the rotating process of the rotating sleeve 94, so that the cold air enters the movable space of the fixed cylinder 91 from different directions in turn, and a freezing environment is formed outside the movable sleeve 92, the broken rice particles can be frozen inside the movable sleeve 92, the cold air also pushes the movable sleeve 92 from different directions, the movable sleeve 92 vibrates, the broken rice particles jump inside the movable sleeve 92, and single ice rice particles are formed, the ice rice particles enter the impurity removing cylinder 3 from the dispersing disc 10 of the rice guiding pipe 7, and are mixed with the clean brown rice inside the impurity removing cylinder 3.

[0045] Step four: the ice rice particles and the clean brown rice enter the milling passageway between the milling top disc 6 and the milling bottom disc 11 together to be milled. In the milling passageway, the temperature rises, the ice on the surface of the ice rice particles melts into water, the brown rice inside the milling passageway is wetted, the milling quality is improved, and the granularity of the broken rice is small, so the broken rice can be filled in the gap of the brown rice to strengthen the friction between the rice particles.

[0046] Step five: after the milling is completed, the rice particles enter the screening cylinder 13 from the milling outlet of the milling passageway, the screening plate 131 screens the rice particles, the broken rice passes through the screening plate 131 from the broken rice outlet pipe 132, and the polished rice passes through the polished rice outlet pipe 133 from above the screening plate 131.

[0047] Example 2

[0048] Reference Figure 1In this embodiment, different from the embodiment 1, a friction space 121 is arranged between the top rice huller disc 2 and the bottom rice huller disc 12, the friction space 121 is located in front of the rice inlet of the rice huller channel 122, and the friction space 121 is used for friction between the rice grains and pre-wear of the rice grain surface.

[0049] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A combined husking and milling system for rice processing, comprising a feed hopper (1), a husking assembly, a milling assembly, and a debris removal cylinder (3) connecting the husking outlet and the milling inlet, one side of the debris removal cylinder (3) being connected to a debris removal pipe (4), and one side of the debris removal cylinder (3) being provided with an air blowing pipe (5) corresponding to the position of the debris removal pipe (4), characterized in that, The impurity removing pipe (4) is provided with a broken rice collecting groove (14) at the bottom, the broken rice collecting groove (14) is communicated with the feeding end of the impurity removing cylinder (3) through a rice guide pipe (7), the rice guide pipe (7) is provided with a humidifying box (8) for wetting the surface of the broken rice and a freezing cylinder (9) for water freezing on the surface of the broken rice, and the broken rice is subjected to humidification by the humidifying box (8) and freezing by the freezing cylinder (9) in sequence and then is subjected to milling treatment together with the brown rice; the milling outlet of the rice milling assembly is provided with a screening cylinder (13) for screening the broken rice; The husking assembly comprises a fixed husking top disc (2) and a rotating husking bottom disc (12), the rice milling assembly comprises a fixed rice milling top disc (6) and a rotating rice milling bottom disc (11), the top of the impurity removing cylinder (3) is communicated with the outlet of a husking channel (122) between the husking top disc (2) and the husking bottom disc (12), and the bottom of the impurity removing cylinder (3) is communicated with the inlet of a rice milling channel between the rice milling top disc (6) and the rice milling bottom disc (11). The husking top disc (2), the husking bottom disc (12), the rice milling top disc (6) and the rice milling bottom disc (11) are coaxially arranged.

2. The polishing and milling integrated rice processing system according to claim 1, wherein, A friction space (121) is further arranged between the husking top disc (2) and the husking bottom disc (12), and the friction space (121) is located in front of the rice inlet of the husking channel (122).

3. The polishing and milling integrated rice processing system according to claim 2, wherein, The humidifying box (8) is provided with a humidifying nozzle (81) and a mesh screen (82) in the inside, the upper space of the mesh screen (82) is communicated with the rice guide pipe (7), the humidifying nozzle (81) is located above the mesh screen (82), and a drain pipe (83) is arranged below the mesh screen (82).

4. The polishing and milling integrated rice processing system according to claim 1, 2 or 3, characterized in that, The freezing cylinder (9) comprises a fixed cylinder (91), a movable sleeve (92) and a rotating sleeve (94) which are coaxially arranged, the movable sleeve (92) is communicated with the rice guide pipe (7), the support spring (93) is arranged between the inner wall of the fixed cylinder (91) and the outer wall of the movable sleeve (92), the inner wall of the rotating sleeve (94) is rotatably and sealingly connected with the outer wall of the fixed cylinder (91), the inner air guide hole (911) is arranged on the fixed cylinder (91), the outer air guide hole (941) for intermittently communicating with the inner air guide hole (911) is arranged on the rotating sleeve (94), and the air guide groove (95) is fixedly arranged outside the outer air guide hole (941).

5. The polishing and milling integrated rice processing system according to claim 4, wherein, One side of the fixed cylinder (91) is provided with the coaxial air guide ring (96), one side of the air guide ring (96) is provided with the rotating ring plate (961) which is rotatably and sealingly connected with the air guide ring (96), and the internal space of the air guide ring (96) is connected with the cold air inlet pipe. The air guide space (951) of the air guide groove (95) is communicated with the internal space of the air guide ring (96) through the air inlet pipe (952).

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