CN110586227B - Rice impurity removing process - Google Patents
Rice impurity removing process Download PDFInfo
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- CN110586227B CN110586227B CN201910879236.XA CN201910879236A CN110586227B CN 110586227 B CN110586227 B CN 110586227B CN 201910879236 A CN201910879236 A CN 201910879236A CN 110586227 B CN110586227 B CN 110586227B
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- rice
- husk
- roller
- guide plate
- conveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B5/00—Grain treatment not otherwise provided for
- B02B5/02—Combined processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0081—Sorting of food items
Abstract
The invention discloses a rice impurity removal process, which comprises the following steps: putting the rice into an impurity removal machine to remove impurities, then spreading the rice in a drying room, drying the rice, cooling the rice to room temperature, putting the rice cooled to room temperature into a rice mill to remove husks, and putting the rice without husks into an impurity removal device to complete impurity removal; according to the rice husk removing mechanism, the rice husk is recovered through the filter hopper, the rice husk can be removed through the operation of the husk collector to the maximum extent by the tiled rice, the rice husk mixed in the rice can be thoroughly removed by the whole husk removing mechanism, the moldy rice in the rice is removed, the possibility that aflatoxin is generated after the rice is moldy is avoided to be eaten by people, the health of people is ensured, the rice can be classified after broken rice is removed, and the gap between the fixed roller and the movable roller can move on the threaded sleeve seat through rotating the threaded lead screw to drive the movable roller to move to adjust the gap, so that the rice with different varieties can be automatically adjusted according to the classification standards of the rice.
Description
Technical Field
The invention relates to the field of rice production, in particular to a rice impurity removal process.
Background
The rice is used as daily staple food of people, and detection items such as broken rice, imperfect grains, maximum limit of impurities, pesticide residues, water, yellow grains, intermixing, cadmium, arsenic, lead, mercury and the like are important indexes for rice detection; if the impurities in the rice are not removed, the impurities in the following rice can cause certain influence on the health, and the health of people is seriously harmed.
The existing rice impurity removal process only filters sand and stone of rice through a screening device to remove sand and stone particles in the rice, wherein the rice cannot be completely removed in the rice milling and shelling process according to the fact that part of rice hulls are mixed in the rice; meanwhile, rice may mildew due to a series of reasons during harvesting, transportation and storage, the mildewed rice may generate aflatoxin, and the aflatoxin is a toxic substance and seriously harms the health of people due to toxicity generated in the subsequent eating of the mildewed rice; finally, a large amount of broken rice can be generated in the production process of the rice, the broken rice is mixed in the whole rice to cause the subsequent quality problem of the rice, the broken rice becomes mixed impurities in the rice, and the broken rice needs to be removed to ensure the quality of the rice.
Disclosure of Invention
The invention aims to provide a rice impurity removal process, which aims to overcome the defect that sand and stone particles in rice are removed only by filtering sand and stone of the rice through a screening device in the existing rice impurity removal process, wherein the rice cannot be completely removed in the rice milling and shelling process according to the fact that part of rice hulls are mixed in the rice milling and shelling process; meanwhile, rice may mildew due to a series of reasons during harvesting, transportation and storage, the mildewed rice may generate aflatoxin, and the aflatoxin is a toxic substance and seriously harms the health of people due to toxicity generated in the subsequent eating of the mildewed rice; finally, a large amount of broken rice can be generated in the production process of the rice, the broken rice is mixed in the whole rice to cause the subsequent quality problem of the rice, the broken rice becomes the mixed impurities in the rice, and the broken rice needs to be removed to ensure the quality of the rice.
The purpose of the invention can be realized by the following technical scheme:
a rice impurity removing process comprises the following steps:
the method comprises the following steps: placing the rice in a roguing machine to remove impurities, then spreading the rice in a drying room, drying, cooling to room temperature, and putting the rice cooled to room temperature into a rice mill to remove chaff;
step two: putting the rice without the husks into an impurity removal device to remove impurities, guiding the rice into a rice hopper in a husk removal mechanism, driving a rice conveying groove of a rice conveying roller to rotate at a constant speed through a first servo motor, conveying the rice onto a conveying belt, paving the rice by an inclined leveling plate, sucking the rice husks in the rice into a husk collector by a centrifugal fan in the husk collector when the rice passes through the lower part of a husk suction cover, and completing rice husk recovery through a filter hopper;
step three: rice falls into a sliding groove formed by a second grading grid of the mildew removing guide plate through the first grading grid, moves downwards under the action of gravity, ensures that single-grain rice sequentially passes through the limiting guide plate in the downward movement process, induces mildew rice with changed color through the color sensor when passing below the color sensor, sprays the mildew rice to the receiving folded plate through the magnetic suspension spray valve when continuously sliding downwards to pass through the magnetic suspension spray valve, and falls into a storage box along the receiving folded plate to be collected;
step four: the rice falls into the vibration dish that removes garrulous mechanism, carry between two sets board one end through the conveyer way, then fall into between fixed roll and the movable roll, and the clearance between fixed roll and movable roll grow gradually, garrulous rice, the whole rice that the granule is little and the whole rice that the granule is big are falling into the below respectively along with fixed roll and movable roll rotate the in-process that moves down and collect the funnel in, leave in the classification incasement at last, wherein the clearance of fixed roll and movable roll removes and then drives the movable roll removal regulation clearance through rotating the screw lead screw at the screw thread sleeve seat.
As a further scheme of the invention: the impurity removing device comprises a support frame, a shell removing mechanism, a mould removing guide plate and a crushing removing mechanism, wherein the shell removing mechanism is installed at the top of the support frame, the mould removing guide plate is fixed at one end of the shell removing mechanism through a support, and the crushing removing mechanism is installed at the bottom end of the mould removing guide plate and positioned at the top of the support frame;
the husking mechanism comprises a conveyor belt, a blocking seat, a rice hopper, a leveling plate, a husk suction cover, a husk collector and first particle gratings, wherein the blocking seat is arranged on each of two sides of the conveyor belt, the rice hopper is arranged above one end of the conveyor belt, the blocking seats on two sides are connected with two ends of the leveling plate, the husk collector is arranged outside the blocking seat on one side, the husk suction cover is arranged at the top of the husk collector through a connecting pipe, the husk suction cover is positioned above the conveyor belt, and the first particle gratings are arranged on the other end of the conveyor belt and positioned on the inner sides of the blocking seats on two sides;
the top side of the mould removing guide plate is provided with a plurality of second particle grids, the adjacent second particle grids form a sliding groove, a plurality of limiting guide plates are arranged on the inner side of the sliding groove, a plurality of color sensors are arranged above the mould removing guide plate and fixed on a supporting plate above the mould removing guide plate, the color sensors face the sliding groove, a plurality of magnetic suspension spraying valves are arranged on the bottom side of the mould removing guide plate, a receiving folded plate is arranged below the magnetic suspension spraying valves and on the top side of the mould removing guide plate, and a storage box is arranged at the bottom end of the receiving folded plate;
the crushing removing mechanism comprises a vibrating disk, a conveying channel, assembling plates, supporting rods, a mounting frame, a collecting funnel, a grading box, a fixing seat, a fixed roller, a movable roller, a sliding seat, a threaded lead screw, a threaded sleeve seat and a rotating wheel, wherein the vibrating disk is arranged at the top of one end of the supporting frame, the mounting frame is arranged at the top of the other end of the supporting frame, the supporting rods are symmetrically arranged at the top of the mounting frame, the assembling plates are symmetrically arranged at the bottom of the supporting rods, the conveying channel is arranged at the top side of the vibrating disk, one end of the conveying channel is positioned between the two assembling plates, the fixed roller is arranged at one side below the assembling plates and positioned inside the mounting frame, the two ends of the fixed roller are arranged inside the mounting frame through the fixing seat, the movable roller is arranged at one side of the fixed, the inside cover of screw thread cover seat is equipped with the screw thread lead screw, and screw thread lead screw one end and sliding seat fixed mounting, and the other end is located the mounting bracket outside and installs the runner, the collection funnel is installed to fixed roll and activity roller below equidistance, every collect the funnel below and all install hierarchical case.
As a further scheme of the invention: a first servo motor is installed on one side of the rice hopper, the output end of the first servo motor is located inside the rice hopper, a rice conveying roller is installed inside the rice hopper, and a plurality of rice conveying grooves are formed in the periphery of the outer side of the rice conveying roller at equal intervals.
As a further scheme of the invention: the flattening plate is obliquely arranged, the gap between the bottom end of the flattening plate and the top side of the conveying belt is larger than the size of rice grains, bolt columns are arranged at the centers of the two ends of the flattening plate, and the thread columns penetrate through the blocking seats and the nuts to be fixedly connected.
As a further scheme of the invention: the shell collecting machine is internally provided with a filter hopper and a centrifugal fan, the filter hopper is positioned above the inside of the shell collecting machine, and the centrifugal fan is positioned below the inside of the shell collecting machine.
As a further scheme of the invention: remove mould baffle bottom and install a collection rice cover, and collection rice cover bottom is located the vibration dish top.
As a further scheme of the invention: the magnetic suspension spraying valves correspond to the color sensors and the sliding grooves one by one, the second particle grids correspond to the first particle grids, and the limiting guide plates in the sliding grooves are arranged in an inverted 'eight' shape.
As a further scheme of the invention: the fixed roller and the movable roller are arranged at an angle of 30 degrees with the mounting frame, and the gap between the fixed roller and the movable roller is gradually enlarged from the end close to the mould removing guide plate to the other end.
As a further scheme of the invention: the sliding seat is installed with the installation frame in a sliding mode, the threaded screw rod is connected with the threaded sleeve seat in a threaded mode, and the threaded screw rod is connected with the sliding seat in a rotating mode through the bearing.
As a further scheme of the invention: a second servo motor is installed on one side of the mounting frame and drives the fixed roller and the movable roller to rotate.
The invention has the beneficial effects that: according to the rice husk removing mechanism, through reasonable structural design, an impurity removing process is completed through an impurity removing device, rice is guided into a rice hopper in the husk removing mechanism, a first servo motor drives a rice conveying groove of a rice conveying roller to rotate at a constant speed, the rice is conveyed onto a conveying belt, the rice can be ensured to uniformly fall onto the conveying belt, the rice can be prevented from being accumulated after being flattened on the conveying belt through an inclined leveling plate, when the rice passes through the lower part of a husk absorbing cover, a centrifugal fan in the husk collecting machine is operated to suck the rice husks in the rice into the husk collecting machine, the rice husk recovery is completed through a filter hopper, the rice husks can be removed through the operation of the husk collecting machine to the maximum extent by the tiled rice, and the rice husking mechanism can thoroughly remove the mixed rice husks in the;
rice falls into a sliding groove formed by a second grading grid of the mould removing guide plate through the first grading grid, the rice can be evenly distributed through the first grading grid and the second grading grid, the rice is evenly distributed into each sliding groove, the rice moves downwards under the action of gravity, in the moving-downwards process, the lower end of the eight-mounting limiting guide plate is arranged at intervals just convenient for single-grain rice to pass through, the single-grain rice is ensured to sequentially pass through the limiting guide plate, when passing below the color sensor, the color sensor senses mould rice with changed color, when the rice continuously slides downwards through the magnetic suspension spray valve, the mould rice is sprayed to the receiving folded plate through the magnetic suspension spray valve, the mould rice falls into the storage box along the receiving folded plate to be collected, the mould rice in the rice is removed, the situation that aflatoxin is possibly generated after the rice is mildewed is avoided, and the health of people is guaranteed;
the rice falls into the vibration dish that removes garrulous mechanism, carry between two sets board one end through the conveyer way, then fall into between fixed roll and the movable roll, and the clearance grow gradually between fixed roll and movable roll, garrulous rice, the whole rice that the granule is little and the big whole rice of granule just falls into the below through gravity respectively in the clearance of grow gradually along with fixed roll and movable roll rotation, leave in hierarchical incasement at last, can also carry out classification operation to the rice after getting rid of garrulous rice with the rice, wherein the clearance of fixed roll and movable roll removes and then drives the movable roll removal regulation clearance at the screw thread sleeve seat through rotating the screw lead screw, be convenient for carry out autonomic regulation according to the rice of different varieties according to its categorised standard.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the case removing mechanism and the mold removing guide plate according to the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2 according to the present invention;
FIG. 4 is a partial cross-sectional view of the rice hopper of the present invention;
FIG. 5 is a schematic view of the internal structure of the hull collector of the present invention;
FIG. 6 is a schematic view of the shredder mechanism of the present invention;
fig. 7 is a schematic view of the installation structure of the fixed roller and the movable roller according to the present invention.
In the figure: 1. a support frame; 2. a shell removing mechanism; 3. a mould removing guide plate; 4. a shredding mechanism; 5. a conveyor belt; 6. a blocking seat; 7. a rice hopper; 8. a rice conveying roller; 9. a rice conveying groove; 10. a screed plate; 11. a suction shell cover; 12. a shell collecting machine; 13. a first classification grid; 14. a filter hopper; 15. a centrifugal fan; 16. a second classification grid; 17. a limiting guide plate; 18. receiving a folded plate; 19. a magazine; 20. a color sensor; 21. magnetic suspension spray valves; 22. a vibrating pan; 23. a conveying path; 24. a collection plate; 25. a support bar; 26. a mounting frame; 27. a collection funnel; 28. a grading box; 29. a fixed seat; 30. a fixed roller; 31. a movable roller; 32. a sliding seat; 33. a threaded lead screw; 34. a threaded sleeve seat; 35. a rotating wheel.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a rice trash removal process includes the following steps:
the method comprises the following steps: placing the rice in a roguing machine to remove impurities, then spreading the rice in a drying room, drying, cooling to room temperature, and putting the rice cooled to room temperature into a rice mill to remove chaff;
step two: putting the rice without the husks into an impurity removal device to remove impurities, guiding the rice into a rice hopper 7 in a husk removal mechanism 2, driving a rice conveying groove 9 of a rice conveying roller 8 to rotate at a constant speed through a first servo motor, conveying the rice onto a conveyor belt 5, paving the rice by an inclined leveling plate 10, sucking the rice husks in the rice into a husk collector 12 by a centrifugal fan 15 in the husk collector 12 when the rice passes below a husk suction cover 11, and completing rice husk recovery through a filter hopper 14;
step three: rice falls into a sliding groove formed by a second grading grid 16 of the mildew removing guide plate 3 through the first grading grid 13, moves downwards under the action of gravity, ensures that single-grain rice sequentially passes through the limiting guide plate 17 in the downward moving process, induces mildew rice with changed color through the color sensor 20 when passing below the color sensor 20, sprays the mildew rice to the receiving folded plate 18 through the magnetic suspension spraying valve 21 when continuously sliding downwards through the magnetic suspension spraying valve 21, and falls into the storage box 19 along the receiving folded plate 18 to be collected;
step four: the rice falls into except that in garrulous mechanism 4's vibration dish 22, carry two between the one end of assembling board 24 through conveyer way 23, then fall into between fixed roller 30 and the activity roller 31, and the clearance between fixed roller 30 and activity roller 31 enlarges gradually, garrulous rice, the whole rice that the granule is little and the big whole rice of granule is moving down the in-process along with fixed roller 30 and activity roller 31 rotate and fall into below collection funnel 27 respectively, leave in hierarchical case 28 at last, wherein the clearance of fixed roller 30 and activity roller 31 moves and then drives activity roller 31 removal regulation clearance through rotating screw lead screw 33 at screw cover seat 34.
The impurity removing device comprises a support frame 1, a shell removing mechanism 2, a mould removing guide plate 3 and a crushing removing mechanism 4, wherein the top of the support frame 1 is provided with the shell removing mechanism 2, one end of the shell removing mechanism 2 is fixed with the mould removing guide plate 3 through a support, and the bottom end of the mould removing guide plate 3 and the crushing removing mechanism 4 are arranged at the top of the support frame 1;
the husking mechanism 2 comprises a conveyor belt 5, blocking seats 6, a rice hopper 7, a leveling plate 10, a husk absorbing cover 11, a husk collecting machine 12 and first particle separating grids 13, the blocking seats 6 are mounted on two sides of the conveyor belt 5, the rice hopper 7 is mounted above one end of the conveyor belt 5, the blocking seats 6 on two sides are connected with two ends of the leveling plate 10, the husk collecting machine 12 is mounted on the outer side of the blocking seat 6 on one side, the husk absorbing cover 11 is mounted on the top of the husk collecting machine 12 through a connecting pipe, the husk absorbing cover 11 is located above the conveyor belt 5, and a plurality of first particle separating grids 13 are mounted on the other end of the conveyor belt 5 and located on the;
the top side of the mould removing guide plate 3 is provided with a plurality of second particle grids 16, the adjacent second particle grids 16 form a sliding chute, the inner side of the sliding chute is provided with a plurality of limit guide plates 17, a plurality of color sensors 20 with the model number of TCS3200D-TR are arranged above the mould removing guide plate 3, the color sensors 20 are fixed on a support plate above the mould removing guide plate 3, the color sensors 20 face the sliding chute, the bottom side of the mould removing guide plate 3 is provided with a plurality of magnetic suspension spraying valves 21, the receiving folded plate 18 is arranged below the magnetic suspension spraying valves 21 and positioned at the top side of the mould removing guide plate 3, and the bottom end of the receiving folded plate 18 is;
the crushing mechanism 4 comprises a vibrating disk 22, a conveying channel 23, an aggregation plate 24, a supporting rod 25, an installation rack 26, a collecting hopper 27, a grading box 28, a fixed seat 29, a fixed roller 30, a movable roller 31, a sliding seat 32, a threaded lead screw 33, a threaded sleeve seat 34 and a rotating wheel 35, wherein the vibrating disk 22 is installed at the top of one end of the support rack 1, the installation rack 26 is installed at the top of the other end of the support rack 1, the supporting rods 25 are symmetrically installed at the top of the installation rack 26, the aggregation plate 24 is installed at the bottom of the symmetrical supporting rods 25, the conveying channel 23 is installed at the top side of the vibrating disk 22, one end of the conveying channel 23 is located above the two aggregation plates 24, the fixed roller 30 is installed at one side below the aggregation plate 24 and inside the installation rack 26, two ends of the fixed roller 30 are installed inside the installation rack 26 through the fixed, threaded sleeve seats 34 are installed at two ends of one side of the installation frame 26, threaded screws 33 are sleeved inside the threaded sleeve seats 34, one ends of the threaded screws 33 are fixedly installed on the sliding seats 32, the other ends of the threaded screws are located on the outer side of the installation frame 26, rotating wheels 35 are installed on the outer sides of the installation frame, collecting hoppers 27 are installed below the fixed rollers 30 and the movable rollers 31 at equal intervals, and grading boxes 28 are installed below each collecting hopper 27.
First servo motor is installed to 7 one sides of rice fill, and the first servo motor output is located 7 internally mounted of rice fill and has defeated rice roller 8, defeated rice roller 8 outside has equidistantly all around seted up a plurality of and has defeated rice groove 9, drive defeated rice roller 8 through the work of first servo motor and rotate, and defeated rice groove 9 in the defeated rice roller 8 outside guarantees that rice falls into defeated rice groove 9 when defeated rice roller 8 rotates, on the conveyer belt 5 that falls into the below along with rotating, guarantees that the rice evenly carries.
Leveling plate 10 slope sets up, and the clearance on leveling plate 10 bottom and 5 top sides of conveyer belt is greater than the grain of rice size, bolt post is all installed to leveling plate 10 both ends center department, and the screw post all runs through and keeps off seat 6 and nut fixed connection, the inclination of leveling plate 10 is adjusted to the loosening nut, the fixed mounting of leveling plate 10 and fender seat 6 is accomplished to the tightening nut after the adjustment finishes, wherein leveling plate 10 plays limiting displacement to the rice, guarantee that the rice can only follow the clearance between leveling plate 10 and conveyer belt 5 and pass through, guarantee that the rice individual layer tiles on conveyer belt 5.
The filter hopper 14 and the centrifugal fan 15 are installed inside the shell collecting machine 12, the filter hopper 14 is located above the inside of the shell collecting machine 12, the centrifugal fan 15 is located below the inside of the shell collecting machine 12, the centrifugal fan 15 works to generate suction force, rice husks passing through the lower portion of the shell suction cover 11 are sucked into the filter hopper 14, the rice husks are intercepted through the filter hopper 14, and air is exhausted.
The bottom end of the mould removing guide plate 3 is provided with a rice collecting cover, the bottom end of the rice collecting cover is positioned above the vibrating disc 22, and the rice from which the mould rice is removed on the mould removing guide plate 3 is intensively conveyed to the vibrating disc 22 to be distinguished from broken rice and whole rice.
Fixed roll 30 and movable roll 31 are 30 jiaos with mounting bracket 26 and install, are convenient for remove along rolling fixed roll 30 and movable roll 31 under the effect of rice gravity, and the clearance is followed and is removed 3 ends of mould baffle to the other end grow gradually from being close to between fixed roll 30 and the movable roll 31, and broken rice, tiny particle rice and the in-process that the large granule rice moved down loop through the clearance and fall down.
The sliding seat 32 and the mounting frame 26 are installed in a sliding mode, the threaded screw rod 33 is in threaded connection with the threaded sleeve seat 34, and the threaded screw rod 33 is rotatably connected with the sliding seat 32 through a bearing, so that the gap between the fixed roller 30 and the movable roller 31 can be adjusted conveniently.
A second servo motor is installed on one side of the mounting frame 26 and drives the fixed roller 30 and the movable roller 31 to rotate, so that power is provided for the rotation of the fixed roller 30 and the movable roller 31 conveniently.
The operating principle of the impurity removing device is as follows: rice without husks is put into an impurity removal device to remove impurities, the rice is guided into a rice hopper 7 in a husking mechanism 2, a first servo motor drives a rice conveying groove 9 of a rice conveying roller 8 to rotate at a constant speed, the rice is conveyed onto a conveying belt 5, the rice is flattened by an inclined leveling plate 10, when the rice passes through the lower part of a shell suction cover 11, a centrifugal fan 15 in a shell collecting machine 12 works to suck rice husks in the rice into the shell collecting machine 12, the rice husk is recovered by a filter hopper 14, the rice falls into a sliding groove formed by a second particle grating 16 of a mildew removal guide plate 3 through a first particle grating 13, moves downwards under the action of gravity in the moving downwards process, single particles of the rice are ensured to sequentially pass through a limiting guide plate 17, when the rice passes through the lower part of a color sensor 20, the mildew with color change is sensed by the color sensor 20, when the rice continuously slides downwards through a magnetic suspension spray valve 21, the mildew is sprayed to a receiving folded plate 18 through the spray valve 21, fall into the bin 19 along receiving the folded plate 18 and collect, the rice falls into removing in the vibration dish 22 of garrulous mechanism 4, carry between two blocks of collection boards 24 one end through the conveyer way 23, then fall into between fixed roller 30 and the movable roll 31, and the clearance between fixed roller 30 and the movable roll 31 is grow gradually, broken rice, the whole rice that the granule is little and the whole rice that the granule is big fall into below collection funnel 27 respectively along with fixed roller 30 and movable roll 31 rotate the in-process that moves down, deposit in hierarchical case 28 at last, wherein the clearance of fixed roller 30 and movable roll 31 moves at screw thread sleeve seat 34 through rotating screw lead screw 33 and then drives movable roll 31 and slide adjustment clearance on mounting bracket 26.
According to the rice husk removing device, through reasonable structural design, the impurity removing process is completed through an impurity removing device, rice is guided into a rice hopper 7 in a husk removing mechanism 2, a first servo motor drives a rice conveying groove 9 of a rice conveying roller 8 to rotate at a constant speed, the rice is conveyed onto a conveying belt 5, the rice can be guaranteed to uniformly fall onto the conveying belt 5, the rice can be prevented from being accumulated after being paved on the conveying belt 5 through an inclined leveling plate 10, when the rice passes through the lower part of a husk sucking cover 11, a centrifugal fan 15 in a husk collector 12 works to suck the rice husks in the rice into the husk collector 12, the rice husks are recovered through a filter hopper 14, the paved rice can be removed through the work of the husk collector 12 to the maximum extent, and the whole husk removing mechanism 2 can thoroughly remove the mixed rice husks in the rice; the rice falls into the sliding groove formed by the second grading grid 16 of the mould removing guide plate 3 through the first grading grid 13, the first grading grid 13 and the second grading grid 16 can evenly distribute the rice and evenly distribute the rice into each sliding chute, the rice moves downwards under the action of gravity, in the process of moving downwards, the distance between the lower ends of the inverted eight-shaped mounting limit guide plates 17 is just convenient for single-grain rice to pass through, the single-grain rice is ensured to pass through the limit guide plates 17, when passing under the color sensor 20, the moldy rice whose color has been changed is sensed by the color sensor 20, while continuously sliding down the magnetic suspension spray valve 21, the mildew rice is sprayed to the receiving flap 18 through the magnetic suspension spray valve 21, falls into the storage box 19 along the receiving flap 18 and is collected, mildew in the rice is removed, so that aflatoxin which is possibly generated after the rice is mildewed is prevented from being eaten by people, and the health of people is seriously harmed; the rice falls into the vibration dish 22 that removes garrulous mechanism 4, carry between two blocks of set boards 24 one end through conveyer way 23, then fall into between fixed roller 30 and the activity roller 31, and the clearance between fixed roller 30 and activity roller 31 enlarges gradually, garrulous rice, the whole rice that the granule is little and the big whole rice of granule just falls into below collection funnel 27 respectively through gravity in the clearance that the granule is big along with fixed roller 30 and activity roller 31 rotate and grow gradually, deposit in hierarchical case 28 at last, can also carry out hierarchical operation to the rice after getting rid of garrulous rice, wherein the clearance of fixed roller 30 and activity roller 31 moves and then drives activity roller 31 removal regulation clearance at thread sleeve seat 34 through rotating screw lead screw 33, be convenient for carry out autonomic regulation according to the rice of different varieties according to its categorised standard.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The rice impurity removing process is characterized by comprising the following steps:
the method comprises the following steps: placing the rice in a roguing machine to remove impurities, then spreading the rice in a drying room, drying, cooling to room temperature, and putting the rice cooled to room temperature into a rice mill to remove chaff;
step two: guiding rice from which husks are removed into a rice hopper (7) in a husking mechanism (2) of an impurity removing device, driving a rice conveying roller (8) and a rice conveying groove (9) arranged on the rice conveying roller (8) to rotate at a constant speed through a first servo motor, conveying the rice onto a conveying belt (5), paving the rice on the conveying belt (5) through an inclined leveling plate (10), sucking the rice husks in a husk collector (12) by a centrifugal fan (15) in the husk collector (12) when conveying the rice to the lower part of a husk suction cover (11), and recovering the rice husks through a filter hopper (14);
step three: rice after shelling falls into a sliding groove formed by a second grading grid (16) of a mildew removing guide plate (3) after passing through a first grading grid (13), the rice moves downwards under the action of gravity, in the downward moving process, single-grain rice is ensured to sequentially pass through a limiting guide plate (17), when the rice moves downwards below a color sensor (20), mildew with color change is sensed by the color sensor (20), when the rice continuously slides downwards to pass through a magnetic suspension spray valve (21), the mildew is sprayed to a receiving folded plate (18) through the magnetic suspension spray valve (21), and the mildew falls into a storage box (19) along the receiving folded plate (18) to be collected;
step four: the rice after mould removal falls into a vibrating disk (22) of the crushing removal mechanism (4), the rice in the vibrating disk (22) is conveyed between one ends of two gathering plates (24) through a conveying passage (23), then the rice falls between the fixed roller (30) and the movable roller (31), the gap between the fixed roller (30) and the movable roller (31) is gradually enlarged from one end close to the mould removing guide plate (3) to the other end, broken rice, whole rice with small grains and whole rice with large grains respectively fall into a collecting hopper (27) below the fixed roller (30) and the movable roller (31) in the downward moving process along with the rotation of the fixed roller (30) and the movable roller (31) and are finally stored in a grading box (28), wherein the threaded screw rod (33) moves in the threaded sleeve seat (34) by rotating the threaded screw rod (33) so as to drive the movable roller (31) to move, thereby adjusting the gap between the fixed roller (30) and the movable roller (31).
2. The rice impurity removing process according to claim 1, wherein the impurity removing device comprises a support frame (1), a shell removing mechanism (2), a mould removing guide plate (3) and a crushing mechanism (4), the shell removing mechanism (2) is installed at the top of the support frame (1), the mould removing guide plate (3) is fixed at one end of the shell removing mechanism (2) through a support, and the crushing mechanism (4) is installed at the bottom end of the mould removing guide plate (3) and is positioned at the top of the support frame (1);
the rice husk removing mechanism (2) comprises a conveyor belt (5), a blocking seat (6), a rice husk hopper (7), a leveling plate (10), a husk absorbing cover (11), a husk collecting machine (12) and first husk separating grids (13), wherein the blocking seats (6) are arranged on two sides of the conveyor belt (5), the rice husk hopper (7) is arranged above one end of the conveyor belt (5), the blocking seats (6) on two sides are connected with two ends of the leveling plate (10), the husk collecting machine (12) is arranged on the outer side of the blocking seat (6) on one side, the husk absorbing cover (11) is arranged at the top of the husk collecting machine (12) through a connecting pipe, the husk absorbing cover (11) is positioned above the conveyor belt (5), and the first husk separating grids (13) are arranged at the inner sides of the blocking seats (6) on two sides and at the other end of the;
the top side of the mould removing guide plate (3) is provided with a plurality of second particle grids (16), the adjacent second particle grids (16) form a sliding groove, the inner side of the sliding groove is provided with a plurality of limiting guide plates (17), a plurality of color sensors (20) are arranged above the mould removing guide plate (3), the color sensors (20) are fixed on a supporting plate above the mould removing guide plate (3), the color sensors (20) face the sliding groove, the bottom side of the mould removing guide plate (3) is provided with a plurality of magnetic suspension spraying valves (21), a receiving folded plate (18) is arranged below the magnetic suspension spraying valves (21) and positioned on the top side of the mould removing guide plate (3), and the bottom end of the receiving folded plate (18) is provided with a storage box (19);
except that garrulous mechanism (4) includes vibration dish (22), conveyer way (23), set board (24), bracing piece (25), mounting bracket (26), collection funnel (27), hierarchical case (28), fixing base (29), fixed roll (30), activity roller (31), sliding seat (32), screw lead screw (33), thread sleeve seat (34) and runner (35), vibration dish (22) are installed at support frame (1) one end top, mounting bracket (26) is installed at support frame (1) other end top, bracing piece (25) are installed to mounting bracket (26) top symmetry, set board (24) are all installed to bracing piece (25) bottom, conveyer way (23) are installed to vibration dish (22) top side, and conveyer way (23) one end is located the top between two set boards (24), set board (24) below one side and be located mounting bracket (26) internally mounted have fixed roll (30), fixed roll (30) both ends are passed through fixing base (29) and are installed inside mounting bracket (26), movable roller (31) is installed to fixed roll (30) one side, install inside mounting bracket (26) through sliding seat (32) at movable roller (31) both ends, screw thread cover seat (34) are all installed at mounting bracket (26) one side both ends, the inside cover of screw thread cover seat (34) is equipped with screw lead screw (33), and screw lead screw (33) one end and sliding seat (32) movable mounting, and screw lead screw (33) other end is located mounting bracket (26) outside and installs runner (35) at this other end, fixed roll (30) and movable roller (31) below equidistance are installed and are collected funnel (27), every collect funnel (27) below and all install hierarchical case (28).
3. The rice impurity removing process according to claim 2, wherein a first servo motor is installed on one side of the rice hopper (7), a rice conveying roller (8) is installed at the output end of the first servo motor located inside the rice hopper (7), and a plurality of rice conveying grooves (9) are formed in the periphery of the outer side of the rice conveying roller (8) at equal intervals.
4. A rice impurity removing process according to claim 2, wherein the leveling plate (10) is obliquely arranged, the gap between the bottom end of the leveling plate (10) and the top side of the conveyor belt (5) is larger than the size of rice grains, threaded columns are installed at the centers of two ends of the leveling plate (10), and the threaded columns penetrate through the baffle seat (6) and are fixedly connected with nuts.
5. A rice impurity removing process according to claim 2, wherein a filter hopper (14) and a centrifugal fan (15) are installed inside the shell collecting machine (12), the filter hopper (14) is located above the inside of the shell collecting machine (12), and the centrifugal fan (15) is located below the inside of the shell collecting machine (12).
6. A rice impurity removing process according to claim 2, wherein a rice collecting cover is installed at the bottom end of the mold removing guide plate (3), and the bottom end of the rice collecting cover is positioned above the vibrating disc (22).
7. The rice impurity removing process according to claim 2, wherein the magnetic suspension spraying valves (21) correspond to the color sensors (20) and sliding grooves one by one, the second grading grids (16) correspond to the first grading grids (13), and limit guide plates (17) in the sliding grooves are arranged in an inverted V shape.
8. A rice impurity removing process according to claim 2, wherein the fixed roller (30) and the movable roller (31) are respectively installed at an angle of 30 degrees with the installation frame (26).
9. A rice impurity removing process according to claim 2, wherein the sliding seat (32) and the mounting frame (26) are slidably mounted, the threaded screw rod (33) is in threaded connection with the threaded sleeve seat (34), and the threaded screw rod (33) is in rotational connection with the sliding seat (32) through a bearing.
10. A rice impurity removing process according to claim 2, wherein a second servo motor is installed on one side of the installation frame (26), and the second servo motor drives the fixed roller (30) and the movable roller (31) to rotate.
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| CN112058656A (en) * | 2020-08-17 | 2020-12-11 | 江西东坚农业发展有限公司 | Conveyor is used in rice processing |
| CN113843177B (en) * | 2021-10-21 | 2024-01-30 | 湖南省粮油产品质量监测中心 | Rice production line pest egg removing device and method |
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| CN207839407U (en) * | 2017-11-09 | 2018-09-11 | 海南能国米业有限公司 | A kind of rice de-burring machine of high-effect high-quality |
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