CN111069055B

CN111069055B - Impurity removal device and impurity removal method before fine processing of rice

Info

Publication number: CN111069055B
Application number: CN201911353369.XA
Authority: CN
Inventors: 李琴; 陈本雄; 蔡树成
Original assignee: Heilongjiang Fuyou Jiabao Agricultural Technology Co ltd
Current assignee: Heilongjiang Fuyou Jiabao Agricultural Technology Co.,Ltd.
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2021-01-22
Anticipated expiration: 2039-12-25
Also published as: CN111069055A

Abstract

The invention relates to an impurity removing device and an impurity removing method before rice finish machining, the device comprises a supporting table, a dust raising bin arranged on the supporting table, a dust raising mechanism arranged on the dust raising bin, a conveying frame fixedly connected with the supporting table, a rice conveying mechanism and an impurity removing mechanism, wherein the dust raising bin comprises a blanking sliding plate, the conveying frame comprises a lower layer rotating supporting frame and an upper layer rotating supporting frame positioned above the lower layer rotating supporting frame, the rice conveying mechanism comprises a plurality of lower layer rotating rollers rotatably arranged on the lower layer rotating supporting frame and rice conveying belts sleeved on all the lower layer rotating rollers, the impurity removing mechanism comprises an impurity removing motor, a transition gear, a driven gear and an impurity conveying mechanism arranged on the upper layer rotating supporting frame, the device provided by the invention has a simple structure, and can realize streamlined impurity removing treatment for first round impurity removing of rice, the separation is effective, and the impurity removal is rapid.

Description

Impurity removal device and impurity removal method before fine processing of rice

Technical Field

The invention relates to the technical field of grain processing, and particularly provides an impurity removal device and an impurity removal method before fine processing of rice.

Background

The rice is inevitably contaminated after being harvested, and from the source of the impurities, the impurities in the rice mainly come from the following sources:

1) when sowing, due to impure seeds, different grains or diseases are mixed;

2) the grain harvesting is rough in the links of threshing, piling and drying, cleaning, screening and the like, so that roots, stems, leaves, weed seeds and the like of the rice are remained in the rice;

3) the food is eaten by pests during storage, loses edible value and is mixed with pest excrement, insect corpses and the like;

from the category of impurities, the impurities in rice are mainly classified into the following types:

1) heavy impurities, the specific gravity of the heavy impurities is heavier than that of the rice;

2) light impurities: the specific weight is lighter than that of the rice (comprising shriveled rice, dust, imperfect grains, immature grains, insect pest grains and the like);

3) straw, ear of rice, weeds, and the like;

4) sand and stone;

5) barnyard grass: a weed seed is provided.

Before the fine processing of the rice, in order to avoid the impurity doping in the rice after the fine processing from affecting the quality of the rice, and also in order to ensure the safety of the grain, the existence of the factor threatening the health of the human body is avoided, so that the corresponding impurity removal treatment of the rice is necessary. The invention provides an impurity removal device and an impurity removal method before fine processing of paddy, which are mainly used for treating light impurities, straw, spike straw and weeds mixed in the harvested paddy, namely performing a first round of impurity removal treatment on impurities which are easy to separate and remove.

Disclosure of Invention

In order to solve the problems, the invention provides an impurity removing device and an impurity removing method before fine processing of rice, which can solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: the utility model provides an edulcoration device before corn finish machining, includes a supporting bench, installs raise dust storehouse, setting on the supporting bench are in raise dust mechanism on the raise dust storehouse, with a supporting bench fixed connection's carriage, corn conveying mechanism and edulcoration mechanism, the raise dust storehouse includes the blanking slide, the carriage includes the lower floor and rotates the support frame and be located the upper strata rotation support frame of support frame top is rotated to the lower floor, wherein:

the rice conveying mechanism comprises a plurality of lower-layer rotating rollers rotatably mounted on the lower-layer rotating support frame and a rice conveying belt sleeved on all the lower-layer rotating rollers, the lower-layer rotating rollers are positioned on the same horizontal plane and are linearly and uniformly arranged, and the blanking sliding plate extends to the upper part of the rice conveying belt;

the impurity removing mechanism comprises an impurity removing motor, a transition gear, a driven gear and an impurity conveying mechanism arranged on the upper rotating support frame, the impurity removing motor is fixedly arranged on the side wall of the support table, a driving gear is arranged on an output shaft of the impurity removing motor and is fixedly connected with the shaft end of one of the lower rotating rollers, the transition gear is rotatably arranged on the side wall of the upper rotating support frame, the impurity conveying mechanism extends towards the front end of the conveying of the rice conveying mechanism, the impurity conveying mechanism comprises a plurality of upper rotating rollers rotatably arranged on the upper rotating support frame, impurity conveying belts sleeved on all the upper rotating rollers and a plurality of rake hook assemblies fixedly distributed along the impurity conveying belts, and the upper rotating rollers are positioned on the same horizontal plane and are linearly and uniformly distributed, the rake hook assembly comprises a fixed strip fixedly installed on the sundry material conveying belt and rake hooks which are linearly and uniformly distributed along the fixed strip, the linear distribution direction of the rake hooks is vertical to the movement direction of the sundry material conveying belt, the rake hooks are arranged in a manner of facing the conveying direction of the rice conveying belt, the driven gear is fixedly installed at the shaft end of one of the upper rotating rollers, the transition gear is located between the driving gear and the driven gear, the transition gear is meshed with the driving gear, and the driven gear is meshed with the transition gear.

Preferably, the dust raising mechanism comprises a motor fixing plate fixedly mounted on the side wall of the dust raising bin, a dust raising motor fixedly mounted on the motor fixing plate, two fan shafts correspondingly fixedly mounted on two opposite side walls of the dust raising bin, a ventilation frame with bearings and a fan shaft rotatably mounted on the ventilation frame with bearings, one end of each fan shaft is fixedly connected with an output shaft of the dust raising motor, four fan blades are uniformly distributed on the fan shaft relative to a central shaft, and the fan blades are located in the dust raising bin.

Preferably, the upper end of the supporting table is provided with two heightening seats for supporting and installing the dust raising bin, and the blanking sliding plate is positioned between the two heightening seats.

Preferably, the feed inlet has been seted up to the upper end in raise dust storehouse, is located the feeder hopper is installed to the feed inlet position, the bottom in raise dust storehouse is located department has seted up the blanking mouth under the feed inlet, is located install the position of blanking mouth the blanking slide, the side in raise dust storehouse is the air outlet, is located raise dust commentaries on classics tuber pipe is installed to the position of air outlet.

Preferably, a discharge hole is formed in the bottom end of the lower rotating support frame, the conveying front end of the rice conveying mechanism is located above the discharge hole, a sundry sliding plate is arranged at the front end of the upper rotating support frame, and the sundry conveying mechanism extends to the position above the sundry sliding plate.

In addition, the invention also provides an impurity removing method before fine processing of the rice, which comprises the following steps:

s1, starting device: starting the dust raising mechanism to enable the dust raising mechanism to be in a standby working state, simultaneously starting the impurity removing motor, and driving the impurity removing motor to enable the rice conveying belt and the impurity conveying belt to be in a moving state;

s2, throwing rice: throwing rice into the dust raising bin;

s3, dust raising treatment: removing light impurities such as shriveled grains, dust, imperfect grains, immature grains and insect pest grains mixed in the rice thrown into the dust raising bin through a dust raising mechanism;

s4, removing sundries: the rice after dust raising treatment falls on a rice conveyer belt, and the miscellaneous material conveyer belt drives a rake hook to further take away and remove miscellaneous materials such as rice straw, rice spike straw, weeds and the like in the rice;

s5, bagging: and bagging the rice subjected to impurity removal.

The technical scheme has the following advantages or beneficial effects:

the invention provides a pre-finishing impurity removal device for rice, which is provided with a dust raising mechanism and an impurity removal mechanism, wherein rice firstly passes through the dust raising mechanism, light impurities such as shriveled rice, dust, imperfect grains, immature grains, insect pest grains and the like are separated and removed through a winnowing principle, then the rice passes through the impurity removal mechanism, on one hand, the rice can be directly bagged after being conveyed forwards by a rice conveying mechanism, on the other hand, in the forward conveying process, a rake hook arranged in the impurity removal mechanism can intercept miscellaneous materials such as rice straws, rice spike rods, weeds and the like mixed in the rice, and after the miscellaneous materials are separated, the miscellaneous materials are separated and conveyed through an miscellaneous material conveying belt.

Drawings

The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic perspective view of a device for removing impurities before fine processing of rice according to the present invention at a first viewing angle;

FIG. 2 is a schematic perspective view of an impurity removing device before fine processing of rice according to the present invention at a second viewing angle;

FIG. 3 is a schematic perspective view of an impurity removing device before fine processing of rice according to the present invention at a third viewing angle;

FIG. 4 is a front view of an impurity removing device before fine processing of rice provided by the invention;

FIG. 5 is a top view of an impurity removing device before fine processing of rice provided by the present invention;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a cross-sectional view C-C of FIG. 5;

fig. 8 is a partially enlarged schematic view at a in fig. 1.

In the figure: 1. a support table; 11. a padding seat; 2. a dust raising bin; 21. a feed inlet; 211. a feed hopper; 22. a blanking port; 221. a blanking sliding plate; 23. an air outlet; 231. a dust raising air transfer pipe; 3. a dust raising mechanism; 31. a motor fixing plate; 32. a dust raising motor; 33. a ventilation frame with a bearing; 34. a fan shaft; 341. a fan blade; 4. a carriage; 41. a lower layer rotating support frame; 411. a discharge port; 42. an upper layer rotating support frame; 421. a sundry sliding plate; 5. a rice conveying mechanism; 51. a lower layer rotating roller; 52. a rice conveying belt; 6. an impurity removal mechanism; 61. an impurity removal motor; 611. a drive gear; 62. a transition gear; 63. a driven gear; 64. a sundry material conveying mechanism; 641. an upper layer rotating roller; 642. a miscellaneous material conveyer belt; 643. a rake hook assembly; 6431. a fixing strip; 6432. and (5) raking a hook.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.

Referring to fig. 1-8, an edulcoration device before corn finish machining, including a supporting bench 1, install raise dust storehouse 2 on a supporting bench 1, set up raise dust mechanism 3 on raise dust storehouse 2, with a supporting bench 1 fixed connection's carriage 4, corn conveying mechanism 5 and edulcoration mechanism 6, raise dust storehouse 2 includes blanking slide 221, carriage 4 includes that the lower floor rotates support frame 41 and is located the upper strata rotation support frame 42 that the support frame 41 top was rotated to the lower floor, wherein:

the rice conveying mechanism 5 comprises seven lower-layer rotating rollers 51 rotatably mounted on the lower-layer rotating support frame 41 and rice conveying belts 52 sleeved on all the lower-layer rotating rollers 51, the seven lower-layer rotating rollers 51 are positioned on the same horizontal plane and are linearly and uniformly arranged, and the blanking sliding plate 221 extends to the upper part of the rice conveying belts 52; the rice after dust raising treatment falls out of the discharging opening 22 and slides down onto the rice conveyer belt 52 from the discharging sliding plate 221, and the rice conveyer belt 52 conveys the rice forward.

The impurity removing mechanism 6 comprises an impurity removing motor 61, a transition gear 62, a driven gear 63 and a impurity conveying mechanism 64 arranged on an upper layer rotating support frame 42, the impurity removing motor 61 is fixedly welded on the side wall of the support table 1, a driving gear 611 is arranged on an output shaft of the impurity removing motor 61, the driving gear 611 is fixedly connected with the shaft end of a lower layer rotating roller 51 positioned at the innermost side, the transition gear 62 is rotatably arranged on the side wall of the upper layer rotating support frame 42, the impurity conveying mechanism 64 extends towards the front of the front conveying end of the rice conveying mechanism 5, the impurity conveying mechanism 64 comprises eight upper layer rotating rollers 641 rotatably arranged on the upper layer rotating support frame 42, impurity conveying belts 642 sleeved on all the upper layer rotating rollers 641 and a plurality of rake hook assemblies 643 fixedly distributed along the impurity conveying belts 642, the eight upper layer rotating rollers 641 are positioned on the same horizontal plane and are linearly and uniformly distributed, the rake hook assembly 643 comprises a fixed strip 6431 fixedly and fixedly arranged on the sundry conveying belt 642 in an adhering mode and rake hooks 6432 (the rake hooks 6432 are perpendicular to the fixed strip 6431) evenly distributed along the fixed strip 6431 in a straight line, the straight distribution direction of the rake hooks 6432 is perpendicular to the movement direction of the sundry conveying belt 642, the rake hooks 6432 are arranged to face the conveying direction of the rice conveying belt 52, a driven gear 63 is fixedly arranged at the shaft end of an upper layer rotating roller 641 which is located on the outermost side and close to the blanking sliding plate 221, a transition gear 62 is located between the driving gear 611 and the driven gear 63, the transition gear 62 is meshed with the driving gear 611, and the driven gear 63 is meshed with the transition gear.

When the impurity removing motor 61 is started, the output shaft drives the driving gear 611 to rotate, so that the lower layer rotating roller 51 fixedly connected with the driving gear 611 rotates along with the driving gear, so as to drive the rice conveying belt 52 to move forward, the rice conveying belt 52 drives the rice to convey forward, the driving gear 611 is driven by the transmission of the transition gear 62, so as to drive the driven gear 63 to rotate through the transition gear 62, and then drive the upper layer rotating roller 641 fixedly connected with the driven gear 63 to rotate along with the driven gear 63, because the driven gear 63 and the driving gear 611 rotate in the same direction, so that the conveying directions of the impurity conveying belt 642 and the rice conveying belt 52 are the same, during the forward conveying of the rice, the rake hook assembly 643 moves along with the impurity conveying mechanism 64, the rake hook 6432 in a moving state on the lower end face of the impurity conveying belt 642 always moves forward in the conveying direction of the rice, and the rake hooks 6432 in a linear arrangement on the fixed bar 6431 intercept the impurity materials (the impurity materials include impurities) in the rice which are continuously conveyed forward Straw, ear stem, weed, etc.), the miscellaneous materials will be caught by the hook 6432, which catches the miscellaneous materials, will be in an inverted state as the miscellaneous materials conveyer 642 moves forward, the miscellaneous materials will be discharged onto the upper end surface of the miscellaneous materials conveyer 642, and then the miscellaneous materials will fall toward the miscellaneous materials slide 421, and the rice, from which the miscellaneous materials are removed, will fall from the discharge port 411.

Further, raise dust mechanism 3 includes motor fixed plate 31 of welded fastening installation on 2 lateral walls of raise dust storehouse, raise dust motor 32 through bolt fixed mounting on motor fixed plate 31, two correspond the fan shaft 34 of welded fastening installation on two take bearing ventilation frames 33 and rotation installation on two take bearing ventilation frames 33 on two relative lateral walls of raise dust storehouse 2, fan shaft 34 one end and raise dust motor 32's output shaft fixed connection, fan shaft 34 is gone up and is had four flabellum 341 to central axis evenly distributed, flabellum 341 is located raise dust storehouse 2.

After the dust raising motor 32 is started, the dust raising motor 32 drives the fan shaft 34 to rotate, the fan blades 341 discharge the generated wind from the air outlet 23, when the rice is thrown into the dust raising bin 2 from the feed hopper 211, the rice with relatively large mass basically falls down into the area of the blanking port 22 and slides out of the blanking sliding plate 221, and light impurities such as shriveled grains, dust, imperfect grains, immature grains, insect pest grains and the like contained in the rice are discharged from the air outlet 23 along with the light impurities by the air separation principle.

Furthermore, two raising seats 11 for supporting and installing the dust raising bin 2 are arranged at the upper end of the supporting platform 1, and the blanking sliding plate 221 is located between the two raising seats 11.

Further, a feed inlet 21 has been seted up to the upper end of raise dust storehouse 2, is located feed inlet 21 position and installs feeder hopper 211 through the bolt, and the bottom of raise dust storehouse 2 is located feed inlet 21 and has seted up blanking mouth 22 under, and the position welding that is located blanking mouth 22 installs blanking slide 221, and the side of raise dust storehouse 2 is air outlet 23, and the position that is located air outlet 23 installs raise dust rotary air pipe 231 through the bolt. Corn falls to discharge gate 411 from feed inlet 21 department, and raise dust commentaries on classics tuber pipe 231 rotates the wind direction to vertical upwards from the horizontal direction, plays the effect that reduces air outlet 23 wind speed on the one hand, and on the other hand conveniently collects light miscellaneous concentration such as flat millet, dust, imperfect grain, immature grain, insect pest grain in the below position that is located raise dust commentaries on classics tuber pipe 231.

Further, a discharge hole 411 is formed in the bottom end of the lower rotating support frame 41, the conveying front end of the rice conveying mechanism 5 is located above the discharge hole 411, a sundry sliding plate 421 is arranged at the front end of the upper rotating support frame 42, and the sundry conveying mechanism 64 extends to the upper side of the sundry sliding plate 421. The unhusked rice through the edulcoration carries forward through unhusked rice conveying mechanism 5, will fall from discharge gate 411, consequently can directly bag the unhusked rice in discharge gate 411 position, and miscellaneous material such as straw, weeds that are detained after 6 edulcorations of edulcoration mechanism will be carried to miscellaneous material slide 421 by miscellaneous material conveyer belt 642 on, can concentrate the collection and carry out miscellaneous material clearance.

s1, starting device: starting the dust raising mechanism 3 to be in a standby state, starting the impurity removing motor 61 at the same time, and driving the impurity removing motor 61 to enable the rice conveying belt 52 and the impurity conveying belt 642 to be in a moving state;

s2, throwing rice: rice is put into the dust raising bin 2;

s3, dust raising treatment: light impurities such as shriveled grains, dust, imperfect grains, immature grains and insect pest grains mixed in the rice thrown into the dust raising bin 2 are removed through the dust raising mechanism 3; in the dust raising process, light impurities accumulated after impurity removal and separation are timely cleaned;

s4, removing sundries: the rice after dust raising treatment falls on the rice conveyer belt 52, and the miscellaneous material conveyer belt 642 drives the rake hook 6432 to further take away and remove miscellaneous materials such as rice straw, rice spike straw and weeds in the rice; collecting and cleaning the generated sundries in time;

s5, bagging: and bagging the rice subjected to the impurity removal.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. The utility model provides an edulcoration device before corn finish machining, includes brace table (1), installs raise dust storehouse (2), setting on brace table (1) are in raise dust mechanism (3) on raise dust storehouse (2), with brace table (1) fixed connection's carriage (4), corn conveying mechanism (5) and edulcoration mechanism (6), its characterized in that: raise dust storehouse (2) are including blanking slide (221), carriage (4) include lower floor and rotate support frame (41) and be located the upper strata of lower floor rotation support frame (41) top rotates support frame (42), wherein:

the rice conveying mechanism (5) comprises a plurality of lower-layer rotating rollers (51) rotatably mounted on the lower-layer rotating support frame (41) and rice conveying belts (52) sleeved on all the lower-layer rotating rollers (51), the lower-layer rotating rollers (51) are positioned on the same horizontal plane and are uniformly arranged in a straight line, and the blanking sliding plate (221) extends to the upper part of the rice conveying belts (52);

edulcoration mechanism (6) are in including edulcoration motor (61), transition gear (62), driven gear (63) and setting miscellaneous material conveying mechanism (64) on upper strata rotation support frame (42), edulcoration motor (61) fixed mounting be in on the lateral wall of brace table (1), be equipped with drive gear (611) on the output shaft of edulcoration motor (61), just drive gear (611) and one of them axle head fixed connection of lower floor rotor roll (51), transition gear (62) rotate to be installed on the lateral wall of upper strata rotation support frame (42), miscellaneous material conveying mechanism (64) are towards the place ahead of the transport foremost of corn conveying mechanism (5) is extended, miscellaneous material conveying mechanism (64) include that a plurality of rotations are installed upper strata rotor roll (641), cover on upper strata rotation support frame (42) are established all miscellaneous material conveyer belt (642) on upper strata rotor roll (641) and edge miscellaneous material is defeated to be defeated A plurality of harrow hook assemblies (643) fixedly distributed on the conveying belt (642), a plurality of upper layer rotating rollers (641) are positioned on the same horizontal plane and are uniformly distributed in a straight line, the rake hook assembly (643) comprises a fixing strip (6431) fixedly arranged on the sundry conveying belt (642) and rake hooks (6432) which are uniformly distributed along the fixing strip (6431), the linear distribution direction of the rake hook (6432) is vertical to the motion direction of the sundry material conveying belt (642), the rake hook (6432) is disposed facing the conveying direction of the rice conveying belt (52), the driven gear (63) is fixedly arranged at the shaft end of one of the upper layer rotating rollers (641), the transition gear (62) is located between the driving gear (611) and the driven gear (63), the transition gear (62) is meshed with the driving gear (611), and the driven gear (63) is meshed with the transition gear (62);

feed inlet (21) have been seted up to the upper end in raise dust storehouse (2), are located feeder hopper (211) are installed to feed inlet (21) position, the bottom in raise dust storehouse (2) is located feed inlet (21) are located down and have been seted up blanking mouth (22), are located install the position of blanking mouth (22) blanking slide (221), the side in raise dust storehouse (2) is air outlet (23), is located raise dust rotary air pipe (231) are installed to the position of air outlet (23).

2. The impurity removing device before fine processing of rice according to claim 1, wherein: raise dust mechanism (3) are including fixed mounting motor fixed plate (31), fixed mounting on raise dust storehouse (2) lateral wall motor fixed plate (32), two on motor fixed plate (31) correspond fixed mounting take bearing ventilation frame (33) and rotate on two relative lateral walls in raise dust storehouse (2) and install two fan shaft (34) on take bearing ventilation frame (33), fan shaft (34) one end with the output shaft fixed connection of raise dust motor (32), it has four flabellum (341) to center shaft evenly distributed on fan shaft (34), flabellum (341) are located in raise dust storehouse (2).

3. The impurity removing device before fine processing of rice according to claim 1, wherein: the upper end of the supporting table (1) is provided with two heightening seats (11) for supporting and installing the dust raising bin (2), and the blanking sliding plate (221) is located between the two heightening seats (11).

4. The impurity removing device before fine processing of rice according to claim 1, wherein: the bottom of lower floor rotation support frame (41) is equipped with discharge gate (411), the transport front end of corn conveying mechanism (5) is located the top position of discharge gate (411), the front end of upper strata rotation support frame (42) is equipped with miscellaneous material slide (421), miscellaneous material conveying mechanism (64) stretch to the top of miscellaneous material slide (421).

5. The impurity removing device before fine processing of rice according to any one of claims 1 to 4, wherein: the impurity removal method for removing impurities before the fine processing of the paddy by adopting the device is as follows:

s1, starting device: starting the dust raising mechanism (3) to be in a standby working state, simultaneously starting the impurity removing motor (61), and driving the impurity removing motor (61) to enable the rice conveying belt (52) and the impurity conveying belt (642) to be in a moving state;

s2, throwing rice: rice is put into the dust raising bin (2);

s3, dust raising treatment: light impurities such as shriveled grains, dust, imperfect grains, immature grains and insect pest grains mixed in the rice thrown into the dust raising bin (2) are removed through a dust raising mechanism (3);

s4, removing sundries: the rice after dust raising treatment falls on a rice conveying belt (52), and the miscellaneous material conveying belt (642) drives the rake hook (6432) to further take away and remove miscellaneous materials such as rice straw, rice spike straw, weeds and the like in the rice;

s5, bagging: and bagging the rice subjected to impurity removal.