Method for preliminarily cleaning rice
Technical Field
The invention belongs to the technical field of rice production equipment, and particularly relates to a preliminary cleaning method for rice.
Background
The paddy is a finished product prepared by the steps of cleaning paddy, hulling paddy, milling paddy, finishing the finished product and the like. The cleaning process is to remove various impurities mixed in the paddy by using proper equipment and proper method flow and proper operation method so as to improve the quality of the paddy finished product, and simultaneously remove iron nails, scrap iron and the like in the paddy by using magnets so as to ensure the production safety; the rice hulling process is to use a rubber roller rice huller or a carborundum rice huller to hulle the rice and separate the hulls from the brown rice; the rice milling process is that the brown rice is milled by a rice mill and rubbed to separate the cortex from the endosperm, and then the treatments such as rice brushing, bran removal, crushing, rice airing and the like are carried out, so that the paddy with the required grade can be obtained; the modern novel rice is further processed by applying color sorting, winnowing, bacteria and dust removal, sterilization and insect prevention, antibiosis, oxygen resistance, enzyme inhibition, bionic packaging and the like so that the rice is more sanitary and safe, fresh, fragrant and nutritional and has less loss.
Some rice production facility that have now adopt iron nail, iron fillings etc. in magnet with the corn to detach when carrying out the corn clearance, nevertheless contact between magnet absorption's iron nail, iron fillings etc. and the corn that flows like this, cause the corn to drop with striking such as iron nail, iron fillings on the magnet, reduced the cleaning efficiency of magnet to iron material in the corn, need clear up once more, increased corn production processes, increased the cost. Therefore, the method for primarily cleaning the rice can remove the ferrous substances in the rice through magnetism, improve the stability of the ferrous substances, avoid the ferrous substances from being mixed in the rice again and effectively improve the efficiency of cleaning the rice.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a preliminary rice cleaning method, which aims to improve the connection strength between a ferrous substance and an annular magnet by arranging gauze on the inner side of the annular magnet and utilizing the gauze and a gap between the gauze and the inner side of the annular magnet, effectively reduce the probability of the ferrous substance falling off from the annular magnet, improve the cleaning quality, and preliminarily clean rice by utilizing clear water, improve the cleanness of the surface of the rice and reduce the workload of secondary cleaning.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a method for preliminarily cleaning rice, which comprises the following steps:
s1: taking out a screening module in the fine processing and screening equipment for the organic rice;
s2: a plurality of annular magnets with different outer diameters are taken, gauze is bonded on the inner side of each annular magnet, a gap is reserved between the gauze and the inner side of each annular magnet, the annular magnets with the two different outer diameters are respectively installed on the inner wall of the outer cylinder and the inner wall of the inner cylinder in the screening module in the organic rice fine-processing screening equipment in S1, and then the screening module is reset; annular magnets are arranged on the inner walls of the outer barrel and the inner barrel at intervals, materials such as iron nails and iron chips in rice are screened by utilizing the magnetism of the annular magnets, iron materials are adsorbed on the annular magnets, the rice continuously moves, when the rice moves, the rice pushes the iron materials adsorbed on the annular magnets, the iron materials are easily separated from the annular magnets, sharp corners or bulges of the iron materials can be hooked with gauze by utilizing the gauze, the probability of hooking is improved by utilizing the gap between the gauze and the annular magnets, the iron materials are prevented from falling off, the content of the iron materials in the rice is effectively reduced, and the impurity removal efficiency is improved;
s3: spraying the paddy to be screened by using clean water, air-drying the sprayed paddy by using an air cooler, and putting the air-dried paddy into the screening module of the organic rice fine-processing screening equipment in S2 for screening; the paddy to be screened is sprayed, so that the paddy is preliminarily cleaned, the clean water can remove dust on the surface of the paddy on one hand, and soil blocks with high adhesion strength on the surface of the paddy can absorb the clean water on the other hand, so that the soil blocks expand and relax, the adhesion force of the soil blocks is reduced, the soil blocks are conveniently removed, and the cleanness degree of the paddy is effectively improved;
s4: starting a motor, an air pump and a dust remover on the organic rice fine-processing screening equipment in the S3, wherein the motor drives a screening module to screen, and the dust remover removes dust from air; the transmission shaft is driven to rotate by the motor, so that the screening module screens the dried rice, the rice with full grains is separated from the rice with flat grains, the workload of screening in the later period is reduced, the screening efficiency is improved, when the screening module rotates, the separation of expanded soil blocks and the rice is accelerated, the dust is removed by the dust remover, and the dust removal effect on the surface of the rice is improved;
the organic rice finishing and screening equipment in the S1-S4 comprises a box body and a screening module; the dust collector is also arranged on the outer side of the box body and is communicated with the air pump through a guide pipe, a partition plate is fixedly connected to the middle position inside the box body and divides the box body into two sub cavities, a motor is arranged on the right side of the partition plate at the bottom of a top plate inside the box body and is in transmission connection with a transmission shaft rotatably connected with the inside of the box body, and a cam and a driving wheel are arranged inside the box body; the cams are symmetrically arranged by taking the vertical center line of the partition plate as a reference, the two cams are respectively arranged at two ends of the transmission shaft, and a driving wheel is arranged between the two cams; the top of the partition board is provided with a circular groove, the bottom end of the circular groove on the partition board is rotatably connected with a discharging plate, and the bottom of the partition board is positioned at the inner sides of the two sub-cavities and is fixedly connected with an elastic sieve plate; wherein,
the discharging plates are symmetrically arranged by taking a vertical central line of the partition plate as a reference, a plurality of dust removing brushes are fixedly connected to the tops of the discharging plates at equal intervals, a discharging groove is formed in the discharging plate and located obliquely below the dust removing brushes, a baffle is hinged to the position, corresponding to the discharging groove, of the bottom of each discharging plate through a torsion spring, an extrusion spring is fixedly connected between the bottom of the top end of one discharging plate and the top of the bottom end of the other discharging plate, and the extrusion springs are used for enabling the discharging plates to shake; one end of the top of the baffle is fixedly connected with the push rod, the top end of the push rod is contacted with one end of the long shaft of the cam, and the baffle is used for discharging the paddy intermittently; the driving wheel is positioned on the inner side of the circular groove and is arranged in the middle of the transmission shaft;
the screening module comprises a support frame, an outer cylinder and an inner cylinder; the support frames are symmetrically arranged by taking a vertical central line of the box body as a reference, the bottom ends of the support frames are spirally connected with the top of the box body, an outer cylinder is rotatably connected between the two support frames, and a feeding hole is arranged at the top of each support frame; the inner cylinder is fixedly connected to the horizontal center line position inside the outer cylinder, the driven wheel is fixedly connected to the middle position outside the outer cylinder, and the driven wheel is meshed with the driving wheel; the inner wall of the outer barrel and the inner wall of the inner barrel are respectively provided with a first helical blade and a second helical blade, and the outer barrel and the inner barrel are respectively communicated with the two sub-cavities through material conveying pipes; the first helical blade and the second helical blade are used for pushing the paddy to move, and the helical directions of the first helical blade and the second helical blade are opposite; conical through holes are uniformly distributed in the wall thickness of the inner cylinder, sealing discs are arranged on the positions, corresponding to the conical through holes, of the inner cylinder, and connecting rods are fixedly connected to the sealing discs; a material shoveling module is arranged between one end of the connecting rod and the inner wall of the outer barrel; the sealing disk is used for controlling the opening and closing of the conical through hole.
When the rice screening machine works, the bottom parts of two sides of the box body are respectively provided with the discharge port and the sand outlet, screened rice and sand can be separately collected after screening is finished, the transmission shaft is driven to rotate by the motor, the transmission shaft drives the driven wheel to rotate by the driving wheel, the outer cylinder rotates along with the rotation, the rice is introduced into the inner side of the outer cylinder from the inner side of the right side mounting rack through the feed port, at the moment, the rice moves to the left side under the action of the first helical blade in the outer cylinder, the rice and crushed rice with small particle size enter the inner cylinder through the tapered through hole in the inner cylinder, when the outer cylinder drives the inner cylinder to synchronously rotate, the second helical blade in the inner cylinder pushes the rice in the inner cylinder to move to the right side, so that the rice with large particle size and the rice with small particle size are screened, the crushed rice is screened out, and when the inner cylinder rotates, the sealing disc at, rice in the inner barrel is prevented from being discharged through the opened conical through hole, the sealing disc at the top of the inner barrel moves downwards under the action of gravity, the connecting rod and the shoveling module limit the sealing disc, the conical through hole at the top of the inner barrel is opened, part of rice is screened to the inside of the inner barrel, and then the screened rice is respectively guided into the two sub-cavities;
after being discharged by a conveying pipe, the rice respectively falls to the tops of two discharging plates, when the rice is contacted with one discharging plate, one end of the discharging plate moves downwards to extrude an extrusion spring corresponding to the discharging plate, so that the top end of the other discharging plate moves upwards to accelerate the flow of the rice on the other discharging plate, a dust removal brush is convenient to clean the surface of the rice, when the extrusion spring rebounds, the top end of the discharging plate is driven to move upwards, the rice on the top end of the discharging plate moves upwards along with the extrusion spring, then the extrusion spring pulls the top end of the discharging plate to move downwards, the rice falls on the top of the discharging plate after moving upwards under the action of inertia and collides with the top end of the discharging plate, and therefore the fine sand doped in the rice is convenient to move to the position contacted with the top of the discharging plate;
when the transmission shaft rotates, the cam rotates along with the cam, when the cam rotates for each circle, one end of the long shaft of the cam pushes the top end of the push rod to move downwards once, the top end of the push rod is connected with the roller in a rotating mode, the roller is contacted with the cam, so that the push rod is conveniently pushed by the cam, when the push rod moves downwards, the baffle plate is opened, rice and fine sand fall through the discharging groove, the top of the discharging plate is fixedly connected with the rectangular baffle plate which is positioned below the discharging groove in an inclined mode, the rice is prevented from moving to the hinged position of the two discharging plates, the two discharging plates are prevented from being damaged, the air pump guides air containing dust into the dust remover through the exhaust pipe to remove dust, the content of particles in the air is reduced, the fine sand leaks through sieve holes in the discharging plate below, the rice is discharged and collected through the discharge hole in the box body, when the top, thereby make corn intermittent type formula drop through the blowing groove and clear away fine sand on the blowing board of below, fine sand drops to the bottom of box through the elasticity sieve, and corn drops earlier and continues the degritting on the elasticity sieve, discharges through sand outlet at last, effectively improves the content of fine sand in the corn like this.
Install spiral brush on the inner wall of inner tube, and spiral brush revolve to opposite with No. two helical blade soon, spiral brush's internal diameter is greater than No. two helical blade's internal diameter, and spiral brush is used for clearing up the surface of corn.
The during operation, when the inner tube rotates, the corn that drives inside particle diameter is little and the broken corn rotates when moving right, make collision each other between the corn, the dust on corn surface spreads to in the air, when the corn in the inner tube rotates, the spiral brush clears up the surface of corn, the spiral direction that utilizes the spiral brush is opposite with No. two helical blade's spiral direction, can prolong the length of time that corn moved in the inner tube, thereby the cleaning efficiency of spiral brush to corn has been improved, effectively improve the quality of dust removal, improve the clean degree on corn surface, and simultaneously, the internal diameter of spiral brush is greater than No. two helical blade's internal diameter, move when being convenient for the corn rotates, improve screening efficiency.
The shoveling module comprises a rectangular elastic plate and a pull rope; one end of the rectangular elastic plate is fixedly connected with the connecting rod, pull ropes are fixedly connected between the other end of the rectangular elastic plate and the inner wall of the outer barrel, and between the two sides of the rectangular elastic plate and the outer wall of the inner barrel, and the rectangular elastic plate is used for shoveling paddy; the pull rope is used for limiting the sealing disc.
When the rice scraper works, when rice is guided between the outer barrel and the inner barrel, the rice is mostly accumulated at the bottom of a gap between the outer barrel and the inner barrel, when the outer barrel drives the inner barrel to rotate, the scraper module rotates along with the inner barrel, the rectangular elastic plate scrapes the rice at the bottom to the top of the inner barrel, the contact probability of the rice and the tapered through hole on the inner barrel is increased, the rice is prevented from being accumulated at the bottom of the outer barrel, the screening efficiency of the inner barrel on the rice is improved, meanwhile, when the inner barrel rotates, the tapered through hole at the top of the inner barrel is opened, the pull rope is arranged between the top of the rectangular elastic plate and the inner wall of the outer barrel, the bottom end of the rectangular elastic plate limits the sealing disc through the connecting rod, the connecting rod is provided with two connecting blocks for dredging the tapered through hole, the other two pull ropes are used for keeping the rectangular elastic plate horizontally arranged, improve the shoveling efficiency.
Sieve holes are uniformly distributed on the bottom end of the discharging plate, and the bottom of the discharging plate corresponding to the sieve holes is elastically connected with a vibrating plate through an extension spring; a plurality of bulges are uniformly distributed on the top of the vibrating plate, and the vibrating plate is used for vibrating the discharging plate.
The during operation, when the baffle is opened, corn on the blowing board drops through the blowing groove, when the corn that drops contacts with the top of below blowing board, strike below blowing board, this moment, the bottom of below blowing board moves down, the extrusion spring is tensile, the corn on blowing board upper strata moves to below elasticity sieve along the bottom of the blowing board of slope on, the volume of the bottom corn of below blowing board reduces, the extrusion spring kick-backs, the bottom of pulling below blowing board shifts up, at this moment, the vibration board receives the bottom separation of inertia effect and blowing board, extension spring extends, then extension spring pulling vibration board resumes original position, arch on the vibration board collides with the bottom of blowing board, make the blowing board vibrate, the fine sand in the corn drops to elasticity sieve through the sieve mesh with higher speed, drop to the bottom of box again.
The top of the elastic sieve plate is fixedly connected with an elastic sleeve, and an elastic lug is bonded on the inner wall of one side of the elastic sleeve; the bottom of the material placing plate is hinged with a shifting lever, a plurality of clamping teeth are arranged on one side, adjacent to the elastic lug, of the bottom end of the shifting lever at equal intervals, the plurality of clamping teeth and the elastic lug are distributed in a staggered mode, and the elastic lug is used for enabling the elastic sieve plate to vibrate.
The during operation, when the bottom of blowing board receives the corn that the intermittent type dropped to act on, the cooperation extrusion spring makes the vertical position of blowing board bottom do intermittent type's change from top to bottom, when blowing board bottom moved down, the latch and the elastic projection bump of driving lever bottom, drive the elastic sleeve vibration, the elastic sleeve drives the vibration of elastic sieve plate, when moving up in the blowing board bottom, the latch bumps with elastic projection once more, thereby make the vibration of elastic sieve plate once more, be favorable to the fine sand in the corn on the elastic sieve plate through the bottom that drops to the elastic sieve plate like this, the degritting efficiency of corn has effectively been improved.
And the annular spraying frame is fixedly connected to the inner wall of the box body below the material discharging plate and communicated with the dust remover, and is used for blowing dust and enabling dust to move upwards.
The during operation, pass through the exhaust tube with the urceolus when the air pump, the air at inner tube and box top is taken out, the inside that the air of taking out lets in the dust remover, the dust that the dust remover will let in the air is detached, then the inside that the clean air after the dust removal lets in the box once more, spout a blowout through the annular again, spun clean air blows grey to the corn, improve the clean degree on corn surface, and simultaneously, the air that the diffusion has the dust with higher speed of spun air shifts up in the inside of box, discharge through the exhaust tube, effectively reduce the content of the inside dust of box, the dust removal quality of corn has been improved, the work load of secondary clearance has been reduced.
The invention has the following beneficial effects:
1. according to the invention, the screening module is rotated by the motor, iron substances in the air-dried rice are removed by the annular magnets arranged on the inner walls of the inner barrel and the outer barrel, and the annular magnets can remove iron from the rice in multiple stages, so that the content of the iron substances in the rice is effectively reduced; through setting up the gauze on annular magnet, utilize the gauze to make the closed angle or the arch of irony material collude with the gauze and link to each other, the clearance between gauze and the annular magnet improves the probability of colluding even, and then avoids irony material to drop, effectively reduces irony material's in the corn content, improves edulcoration efficiency.
2. According to the invention, the rice is sprayed by using the clean water, the dust on the surface of the rice can be removed by the sprayed clean water, the cleanliness of the rice is effectively improved, and the high-adhesion-strength soil blocks on the surface of the rice can absorb water and swell by the sprayed clean water, so that the adhesion force of the soil blocks is reduced, the soil blocks can be conveniently removed, and the cleanliness of the rice is effectively improved.
3. According to the invention, the outer cylinder and the inner cylinder are arranged, the first helical blade and the second helical blade are respectively arranged on the inner walls of the outer cylinder and the inner cylinder, rice can be conveniently screened by the first helical blade and the second helical blade, and crushed rice with small particle size in the rice can be screened, so that the screening efficiency is improved, the discharging plate is matched with the extrusion spring for use, so that fine sand and the rice can be conveniently separated, and meanwhile, the cam is used for intermittently opening the baffle plate for intermittently discharging, so that the sand removing efficiency of the rice is improved.
Drawings
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic view showing the construction of the fine finishing and screening apparatus for organic rice according to the present invention;
FIG. 3 is a schematic cross-sectional view taken at A in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken at B in FIG. 2;
in the figure: the device comprises a box body 1, a partition plate 11, an annular spraying frame 12, a dust remover 13, an air pump 14, an elastic sieve plate 15, a screening module 2, a support frame 21, an outer cylinder 22, a first spiral blade 221, an inner cylinder 23, a second spiral blade 231, a sealing disc 232, a driven wheel 24, a motor 3, a transmission shaft 31, a cam 32, a driving wheel 33, a discharging plate 4, a baffle plate 41, a vibrating plate 42, a deflector rod 43, a dust removing brush 44, an extrusion spring 45, an air exhaust pipe 5, a shoveling module 6, a rectangular elastic plate 61, a pull rope 62, an elastic sleeve 7 and an elastic lug 71.
Detailed Description
A method of preliminary cleaning of rice according to the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, the method for preliminary cleaning of rice according to the present invention comprises the following steps:
s1: taking out a screening module in the fine processing and screening equipment for the organic rice;
s2: a plurality of annular magnets with different outer diameters are taken, gauze is bonded on the inner side of each annular magnet, a gap is reserved between the gauze and the inner side of each annular magnet, the annular magnets with the two different outer diameters are respectively installed on the inner wall of the outer cylinder and the inner wall of the inner cylinder in the screening module in the organic rice fine-processing screening equipment in S1, and then the screening module is reset; annular magnets are arranged on the inner walls of the outer barrel and the inner barrel at intervals, materials such as iron nails and iron chips in rice are screened by utilizing the magnetism of the annular magnets, iron materials are adsorbed on the annular magnets, the rice continuously moves, when the rice moves, the rice pushes the iron materials adsorbed on the annular magnets, the iron materials are easily separated from the annular magnets, sharp corners or bulges of the iron materials can be hooked with gauze by utilizing the gauze, the probability of hooking is improved by utilizing the gap between the gauze and the annular magnets, the iron materials are prevented from falling off, the content of the iron materials in the rice is effectively reduced, and the impurity removal efficiency is improved;
s3: spraying the paddy to be screened by using clean water, air-drying the sprayed paddy by using an air cooler, and putting the air-dried paddy into the screening module of the organic rice fine-processing screening equipment in S2 for screening; the paddy to be screened is sprayed, so that the paddy is preliminarily cleaned, the clean water can remove dust on the surface of the paddy on one hand, and soil blocks with high adhesion strength on the surface of the paddy can absorb the clean water on the other hand, so that the soil blocks expand and relax, the adhesion force of the soil blocks is reduced, the soil blocks are conveniently removed, and the cleanness degree of the paddy is effectively improved;
s4: starting a motor, an air pump and a dust remover on the organic rice fine-processing screening equipment in the S3, wherein the motor drives a screening module to screen, and the dust remover removes dust from air; the transmission shaft is driven to rotate by the motor, so that the screening module screens the dried rice, the rice with full grains is separated from the rice with flat grains, the workload of screening in the later period is reduced, the screening efficiency is improved, when the screening module rotates, the separation of expanded soil blocks and the rice is accelerated, the dust is removed by the dust remover, and the dust removal effect on the surface of the rice is improved;
as shown in fig. 2 to 4, the organic rice finishing and screening apparatus in S1 to S4 includes a case 1 and a screening module 2; the screening module 2 is installed at the top of the box body 1, the air pump 14 is installed at the top of the outer side of the box body 1, the air pump 14 is communicated with the screening module 2 and the top of the box body 1 through the exhaust pipe 5, the dust remover 13 is also installed at the outer side of the box body 1 and located below the air pump 14, the dust remover 13 is communicated with the air pump 14 through a guide pipe, the partition plate 11 is fixedly connected to the middle position inside the box body 1, the box body 1 is divided into two sub-cavities by the partition plate 11, the motor 3 is installed at the bottom of the top plate inside the box body 1 and located on the right side of the partition plate 11, the motor 3 is in transmission connection with the transmission shaft 31 in rotation connection with the inside; the cams 32 are symmetrically arranged by taking a vertical central line of the partition plate 11 as a reference, the two cams 32 are respectively arranged at two ends of the transmission shaft 31, and a driving wheel 33 is arranged between the two cams 32; the top of the partition board 11 is provided with a circular groove, the bottom end of the circular groove on the partition board 11 is rotatably connected with a material discharging plate 4, and the bottom of the partition board 11 is positioned at the inner sides of the two sub-cavities and is fixedly connected with an elastic sieve plate 15; wherein,
the discharging plates 4 are symmetrically arranged by taking a vertical central line of the partition plate 11 as a reference, a plurality of dust removing brushes 44 are fixedly connected to the tops of the discharging plates 4 at equal intervals, a discharging groove is formed in the discharging plate 4 and is positioned obliquely below the dust removing brushes 44, a baffle plate 41 is hinged to the position, corresponding to the discharging groove, of the bottom of each discharging plate 4 through a torsion spring, an extrusion spring 45 is fixedly connected between the bottom of the top end of one discharging plate 4 and the top of the bottom end of the other discharging plate 4, and the extrusion springs 45 are used for enabling the discharging plates 4 to shake; one end of the top of the baffle plate 41 is fixedly connected with a push rod, the top end of the push rod is contacted with one end of the long shaft of the cam 32, and the baffle plate 41 is used for discharging the paddy intermittently; the driving wheel 33 is positioned at the inner side of the circular groove, and the driving wheel 33 is arranged at the middle position of the transmission shaft 31;
the screening module 2 comprises a support frame 21, an outer cylinder 22 and an inner cylinder 23; the supporting frames 21 are symmetrically arranged by taking a vertical central line of the box body 1 as a reference, the bottom ends of the supporting frames 21 are spirally connected with the top of the box body 1, an outer cylinder 22 is rotatably connected between the two supporting frames 21, and a feeding hole is formed in the top of each supporting frame 21; the inner cylinder 23 is fixedly connected to the horizontal center line position inside the outer cylinder 22, the driven wheel 24 is fixedly connected to the middle position outside the outer cylinder 22, and the driven wheel 24 is meshed with the driving wheel 33; the inner walls of the outer cylinder 22 and the inner cylinder 23 are respectively provided with a first helical blade 221 and a second helical blade 231, and the outer cylinder 22 and the inner cylinder 23 are respectively communicated with the two sub-cavities through material conveying pipes; the first helical blade 221 and the second helical blade 231 are used for pushing the rice to move, and the helical directions of the first helical blade 221 and the second helical blade 231 are opposite; conical through holes are uniformly distributed in the wall thickness of the inner cylinder 23, sealing discs 232 are arranged on the inner cylinder 23 at positions corresponding to the conical through holes, and connecting rods are fixedly connected to the sealing discs 232; a material shoveling module 6 is arranged between one end of the connecting rod and the inner wall of the outer cylinder 22; the sealing disk 232 serves to control the opening and closing of the tapered through-hole.
When the rice screening machine works, the bottom parts of two sides of the box body 1 are respectively provided with the discharge port and the sand outlet, screened rice and sand can be separately collected after screening is finished, the motor 3 drives the transmission shaft 31 to rotate, the transmission shaft 31 drives the driven wheel 24 to rotate through the driving wheel 33, the outer cylinder 22 rotates along with the rotation, the rice is introduced into the inner side of the outer cylinder 22 through the inner side of the right side mounting rack through the feed inlet, at the moment, the rice moves to the left side under the action of the first helical blade 221 in the outer cylinder 22, for the rice with small particle size and crushed rice fragments, the rice and crushed rice fragments enter the inner cylinder 23 through the tapered through hole in the inner cylinder 23, when the outer cylinder 22 drives the inner cylinder 23 to synchronously rotate, the second helical blade 231 in the inner cylinder 23 pushes the rice in the inner cylinder 23 to move to the right side, thereby screening the rice with large particle size and the rice with small, when the inner cylinder 23 rotates, the conical through hole is sealed by the sealing disc 232 at the bottom of the inner cylinder 23 under the action of gravity, rice in the inner cylinder 23 is prevented from being discharged through the opened conical through hole, at the moment, the sealing disc 232 at the top of the inner cylinder 23 moves downwards under the action of gravity, the connecting rod and the shoveling module 6 limit the sealing disc 232, the conical through hole at the top of the inner cylinder 23 is opened, part of rice is screened to the inside of the inner cylinder 23, and then the screened rice is respectively guided into the two sub-cavities;
after being discharged through the conveying pipe, the rice respectively falls to the tops of the two discharging plates 4, when the rice is contacted with one discharging plate 4, one end of the discharging plate 4 moves downwards to extrude the corresponding extrusion spring 45, so that the top end of the other discharging plate 4 moves upwards to accelerate the rice on the other discharging plate 4 to flow, the surface of the rice is conveniently cleaned by the dust removal brush 44, when the extrusion spring 45 rebounds, the top end of the discharging plate 4 is driven to move upwards, the rice on the top end of the discharging plate 4 moves upwards along with the extrusion spring 45, then the top end of the discharging plate 4 is pulled by the extrusion spring 45 to move downwards, the rice falls on the top of the discharging plate 4 after moving upwards under the action of inertia and collides with the top end of the discharging plate 4, and therefore the fine sand doped in the rice is conveniently moved to the position contacted with the top of the discharging plate 4;
when the transmission shaft 31 rotates, the cam 32 rotates along with the transmission shaft, when the cam 32 rotates for one circle, one end of the long shaft of the cam 32 pushes the top end of the push rod to move downwards once, the top end of the push rod is connected with a roller in a rotating manner, the roller is contacted with the cam 32, so that the push rod is pushed by the cam 32 conveniently, when the push rod moves downwards, the baffle 41 is opened, rice and fine sand fall through the discharging groove, the top of the discharging plate 4 is fixedly connected with the rectangular baffle plate below the discharging groove, the rice is prevented from moving to the hinged position of the two discharging plates 4, the two discharging plates 4 are prevented from being damaged, the air pump 14 guides air containing dust into the dust remover 13 through the exhaust pipe 5 for dust removal, the content of particles in the air is reduced, the fine sand leaks through sieve holes on the discharging plate 4 below, the rice is discharged and collected through the discharging hole on the box body 1, when the top end of the push rod, the blowing groove seals to make corn intermittent type formula drop to clear away the fine sand on the blowing board 4 of below through the blowing groove, the fine sand drops to the bottom of box 1 through elasticity sieve 15, and corn drops earlier and continues the degritting on elasticity sieve 15, discharges through the sand outlet at last, effectively improves the content of fine sand in the corn like this.
Install spiral brush on the inner wall of inner tube 23, and spiral brush's the direction of turning soon to opposite with No. two helical blade 231, spiral brush's internal diameter is greater than No. two helical blade 231's internal diameter, and spiral brush is used for clearing up the surface of corn.
The during operation, when inner tube 23 rotates, the corn that drives inside particle diameter is little and the broken corn rotates when moving right, make collision each other between the corn, the dust on corn surface spreads to in the air, when the corn in inner tube 23 rotates, the spiral brush clears up the surface of corn, the spiral direction that utilizes the spiral brush is opposite with No. two helical blade 231's spiral direction, can prolong the length of time that the corn moved in inner tube 23, thereby the cleaning efficiency of spiral brush to corn has been improved, effectively improve the quality of dust removal, improve the clean degree on corn surface, and simultaneously, the internal diameter of spiral brush is greater than No. two helical blade 231's internal diameter, move when the corn of being convenient for rotates, improve screening efficiency.
The shoveling module 6 comprises a rectangular elastic plate 61 and a pull rope 62; one end of the rectangular elastic plate 61 is fixedly connected with the connecting rod, pull ropes 62 are fixedly connected between the other end of the rectangular elastic plate 61 and the inner wall of the outer cylinder 22 and between two sides of the rectangular elastic plate 61 and the outer wall of the inner cylinder 23, and the rectangular elastic plate 61 is used for shoveling paddy; the pull cord 62 is used to restrain the sealing disc 232.
When the rice screening device works, when rice is guided between the outer cylinder 22 and the inner cylinder 23, most of the rice is accumulated at the bottom of a gap between the outer cylinder 22 and the inner cylinder 23, when the outer cylinder 22 drives the inner cylinder 23 to rotate, the material shoveling module 6 rotates along with the rotation, the rectangular elastic plate 61 shovels the rice at the bottom to the top of the inner cylinder 23, the probability of contact between the rice and the tapered through hole on the inner cylinder 23 is increased, the rice is prevented from accumulating at the bottom of the outer cylinder 22, the screening efficiency of the inner cylinder 23 on the rice is improved, meanwhile, when the inner cylinder 23 rotates, the tapered through hole at the top of the inner cylinder 23 is opened, the pull rope 62 is arranged between the top of the rectangular elastic plate 61 and the inner wall of the outer cylinder 22, the bottom end of the rectangular elastic plate 61 limits the sealing disc 232 through the connecting rod, the connecting rod is provided with two connecting blocks for dredging the tapered through hole, the other two pull, thereby guaranteeing that the effective material shoveling area of the rectangular elastic plate 61 is maximum and improving the material shoveling efficiency.
Sieve holes are uniformly distributed on the bottom end of the discharging plate 4, and the bottom of the discharging plate 4 is elastically connected with a vibrating plate 42 through an extension spring at the position corresponding to the sieve holes; a plurality of protrusions are uniformly distributed on the top of the vibration plate 42, and the vibration plate 42 is used for vibrating the discharging plate 4.
When the rice discharging device works, when the baffle 41 is opened, the rice on the discharging plate 4 falls through the discharging groove, when the falling rice is contacted with the top of the discharging plate 4 below, impacting the lower discharging plate 4, wherein the bottom end of the lower discharging plate 4 moves downwards, the extrusion spring 45 stretches, the rice on the upper layer of the discharging plate 4 moves to the lower elastic sieve plate 15 along the bottom end of the inclined discharging plate 4, the amount of the rice on the bottom end of the lower discharging plate 4 is reduced, the extrusion spring 45 rebounds to pull the bottom end of the lower discharging plate 4 to move upwards, at the moment, the vibrating plate 42 is separated from the bottom end of the discharging plate 4 under the action of inertia, the extension spring stretches, then extension spring pulling vibration plate 42 resumes the primary importance, and the arch on the vibration plate 42 bumps with the bottom of blowing board 4, makes blowing board 4 vibrate, and the fine sand in the grain drops to elastic sieve 15 through the sieve mesh with higher speed on, drops to the bottom of box 1 again.
The top of the elastic sieve plate 15 is fixedly connected with the elastic sleeve 7, and an elastic lug 71 is bonded on the inner wall of one side of the elastic sleeve 7; the bottom end of the material discharging plate 4 is hinged with a shifting lever 43, a plurality of clamping teeth are arranged on the bottom end of the shifting lever 43 at equal intervals on one side adjacent to the elastic lug 71, the plurality of clamping teeth and the elastic lug 71 are distributed in a staggered mode, and the elastic lug 71 is used for enabling the elastic sieve plate 15 to vibrate.
The during operation, when the bottom of blowing board 4 receives the corn that the intermittent type dropped to function, cooperation extrusion spring 45 makes the vertical position of blowing board 4 bottom do intermittent type change from top to bottom, when blowing board 4 bottom moves down, the latch and the elastic projection 71 of driving lever 43 bottom bump, it vibrates to drive elastic sleeve 7, elastic sleeve 7 drives elastic sieve 15 vibration, when blowing board 4 bottom shifts up, the latch bumps with elastic projection 71 once more, thereby make elastic sieve 15 vibrate once more, be favorable to the fine sand in the corn on elastic sieve 15 through the bottom that drops to elastic sieve 15 like this, the degritting efficiency of corn has effectively been improved.
An annular spraying frame 12 is fixedly connected to the inner wall of the box body 1 below the material discharging plate 4, the annular spraying frame 12 is communicated with a dust remover 13, and the annular spraying frame 12 is used for blowing dust and enabling the dust to move upwards.
During operation, when air pump 14 takes outer tube 22, the air at inner tube 23 and box 1 top out through exhaust tube 5, the air of taking out lets in the inside of dust remover 13, dust remover 13 will let in the dust in the air and detach, then dust remover 13 lets in the inside of box 1 once more with the clean air after the dust removal, spout frame 12 blowout through the annular again, spun clean air blows the ash to the corn, improve the clean degree on corn surface, and simultaneously, the air that the spun air diffusion has the dust with higher speed shifts up in the inside of box 1, discharge through exhaust tube 5, effectively reduce the content of the inside dust of box 1, the dust removal quality of corn has been improved, the work load of secondary clearance has been reduced.
The specific use flow is as follows:
when the rice screening machine is used, the bottom parts of two sides of the box body 1 are respectively provided with the discharge port and the sand outlet, screened rice and sand can be separately collected after screening is finished, the motor 3 drives the transmission shaft 31 to rotate, the transmission shaft 31 drives the driven wheel 24 to rotate through the driving wheel 33, the outer cylinder 22 rotates along with the rotation, air-dried rice is introduced into the inner side of the outer cylinder 22 from the inner side of the right side mounting rack through the feed inlet, at the moment, the rice moves to the left side under the action of the first helical blade 221 in the outer cylinder 22, and for rice with small particle size and crushed rice, the rice enters the inner cylinder 23 through the tapered through hole in the inner cylinder 23, when the outer cylinder 22 drives the inner cylinder 23 to synchronously rotate, the second helical blade 231 in the inner cylinder 23 pushes the rice in the inner cylinder 23 to move to the right side, so that the rice with large particle size and the crushed rice are screened out, when the inner cylinder 23 rotates, the sealing disc 232 at the bottom of the inner cylinder 23 seals the tapered through hole under the action of gravity, so that rice in the inner cylinder 23 is prevented from being discharged through the opened tapered through hole, at the moment, the sealing disc 232 at the top of the inner cylinder 23 moves downwards under the action of gravity, the connecting rod and the shoveling module 6 limit the sealing disc 232, the tapered through hole at the top of the inner cylinder 23 is opened, part of rice is screened to the inner part of the inner cylinder 23, then, the screened rice is respectively guided into the two sub-cavities and respectively falls to the tops of the two discharging plates 4 after being discharged through the conveying pipe, when the rice is contacted with one discharging plate 4, one end of the discharging plate 4 moves downwards to extrude the extrusion spring 45 corresponding to the discharging plate, so that the top end of the other discharging plate 4 moves upwards to accelerate the flow of the rice on the other discharging plate 4, and the surface of the rice is conveniently cleaned by the dust removal brush, when the extrusion spring 45 rebounds, the top end of the discharging plate 4 is driven to move upwards, the rice on the top end of the discharging plate 4 moves upwards along with the extrusion spring 45, then the extrusion spring 45 pulls the top end of the discharging plate 4 to move downwards, the rice moves upwards under the action of inertia and then falls on the top of the discharging plate 4 to collide with the top end of the discharging plate 4, so that the fine sand doped in the rice can move to a position contacted with the top end of the discharging plate 4, when the transmission shaft 31 rotates, the cam 32 rotates along with the extrusion spring, when the cam 32 rotates for each circle, one end of the long shaft of the cam 32 pushes the top end of the push rod to move downwards, the roller is rotatably connected to the top end of the push rod and is contacted with the cam 32, so that the cam 32 can push the push rod conveniently, when the push rod moves downwards, the baffle plate 41 is opened, the rice and the fine sand fall through the discharging groove, the top end of the discharging, the rice is prevented from moving to the hinged position of the two discharging plates 4 and being damaged, the air pump 14 guides air containing dust into the dust remover 13 through the air outlet pipe 5 to remove dust, the content of particulate matters in the air is reduced, fine sand leaks out through sieve pores on the discharging plates 4 below, the rice is discharged and collected through a discharge port on the box body 1, when the top end of the push rod is separated from the cam 32, the baffle plate 41 is closed by the torsional spring, the discharging groove is closed, so that the rice intermittently drops onto the discharging plates 4 below through the discharging groove to remove the fine sand, the fine sand drops onto the bottom of the box body 1 through the elastic sieve plate 15, the rice drops onto the elastic sieve plate 15 to continue to remove the sand, when the inner barrel 23 rotates, the rice with small particle size inside and the broken rice are driven to move rightwards and simultaneously rotate, mutual collision between the rice is realized, and the dust on the surface of the rice is diffused into the air, when the paddy in the inner cylinder 23 rotates, the spiral brush cleans the surface of the paddy, the spiral direction of the spiral brush is opposite to the spiral direction of the second spiral blade 231, when the paddy is guided between the outer cylinder 22 and the inner cylinder 23, the paddy is mostly accumulated at the bottom of the gap between the outer cylinder 22 and the inner cylinder 23, when the outer cylinder 22 drives the inner cylinder 23 to rotate, the shoveling module 6 rotates along with the rotation, the rectangular elastic plate 61 shovels the paddy at the bottom to the top of the inner cylinder 23, the contact probability of the paddy and the conical through hole on the inner cylinder 23 is increased, the paddy is prevented from accumulating at the bottom of the outer cylinder 22, the screening efficiency of the inner cylinder 23 on the paddy is improved, meanwhile, when the inner cylinder 23 rotates, the conical through hole at the top of the inner cylinder 23 is opened, the pull rope 62 is arranged between the top of the rectangular elastic plate 61 and the inner wall of the outer cylinder 22, the bottom end of the rectangular elastic plate 61 limits the sealing disc 232 through the, used for dredging the taper through hole, the other two pull ropes 62 are used for keeping the rectangular elastic plate 61 horizontally arranged, when the baffle 41 is opened, the rice on the discharging plate 4 falls through the discharging groove, when the falling rice contacts with the top of the discharging plate 4 below, the discharging plate 4 below is impacted, at the moment, the bottom end of the discharging plate 4 below moves downwards, the extrusion spring 45 stretches, the rice on the upper layer of the discharging plate 4 moves to the elastic sieve plate 15 below along the bottom end of the inclined discharging plate 4, the amount of the rice on the bottom end of the discharging plate 4 below is reduced, the extrusion spring 45 rebounds, the bottom end of the discharging plate 4 below is pulled to move upwards, at the moment, the vibrating plate 42 is separated from the bottom end of the discharging plate 4 under the inertia effect, the extension spring extends, then the extension spring pulls the vibrating plate 42 to restore to the original position, the bulge on the vibrating plate 42 collides with the bottom of the discharging plate 4, so that the discharging plate 4 vibrates, when the bottom end of the discharging plate 4 is acted by the rice dropped intermittently, the vertical position of the bottom end of the discharging plate 4 is changed intermittently up and down by matching with the extrusion spring 45, when the bottom end of the discharging plate 4 moves downwards, the latch at the bottom end of the deflector rod 43 collides with the elastic lug 71 to drive the elastic sleeve 7 to vibrate, the elastic sleeve 7 drives the elastic sieve plate 15 to vibrate, when the bottom end of the discharging plate 4 moves upwards, the latch collides with the elastic lug 71 again to vibrate the elastic sieve plate 15 again, when the air pump 14 pumps out the air at the top of the outer cylinder 22, the inner cylinder 23 and the box body 1 through the exhaust pipe 5, the pumped air is introduced into the dust remover 13, the dust remover 13 removes the dust in the introduced air, then the dust remover 13 introduces the cleaned air after dust removal into the inside of the box body 1 again and sprays out the cleaned air through the annular spraying frame 12, the sprayed cleaned air blows the rice to improve the cleaning degree of the surface of the, meanwhile, the sprayed air accelerates the air with dust to move upwards in the box body 1 and is discharged through the air exhaust pipe 5, and the content of the dust in the box body 1 is effectively reduced.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
Industrial applicability
According to the invention, the gauze is arranged on the annular magnet, sharp corners or bulges of iron substances can be hooked with the gauze by utilizing the gauze, and the probability of hooking is improved by the gap between the gauze and the annular magnet, so that the iron substances are prevented from falling off, the content of the iron substances in the rice is effectively reduced, and the impurity removal efficiency is improved; the rice is sprayed by using the clear water, the dust on the surface of the rice can be removed by the sprayed clear water, the cleanliness of the rice is effectively improved, and the high-adhesion-strength soil blocks on the surface of the rice can absorb water and swell by the sprayed clear water, so that the adhesion force of the soil blocks is reduced, the soil blocks can be conveniently removed, and the cleanliness of the rice is effectively improved; therefore, the method for primarily cleaning the rice is useful in the technical field of rice production equipment.