CN114950943A

CN114950943A - Grading and screening equipment for granular materials

Info

Publication number: CN114950943A
Application number: CN202210537632.6A
Authority: CN
Inventors: 徐婷
Original assignee: Wuxi Huamu Machinery Co ltd
Current assignee: Wuxi Huamu Machinery Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-30
Anticipated expiration: 2042-05-17
Also published as: CN114950943B

Abstract

The invention belongs to the field of material preparation, and particularly relates to a grading and screening device for granular materials, which comprises mixing equipment; the end part of the mixing equipment is fixedly connected with a screening barrel; the inner side wall of the screening barrel is fixedly connected with a motor frame; through the filter screen board that sets up No. one, when the material is drenched bonding and is used the mixing plant to mix after caking, pour multiple material into the screening bucket, medium and small granule material sees through the inside mixture that a filter screen board falls into the mixing plant, the scraper blade rotates along with servo motor, the material of scraping a filter screen board terminal surface caking and adhesion, the fan blows hot air drying material, dry back material is ground the scraping of scraper blade and is dropped the mixture, a large amount of materials pile up a filter screen board terminal surface, the scraper blade rotates the scraping, material extrusion sliding plate slides and makes sliding baffle stretch out and shelter from, it draws the scraper roller outwards to turn over the material to connect the stay cord to draw, avoid the scraper blade to roll the effect, utilize the magnetic path to repel magnetic ball constantly to strike a filter screen board at last, avoid filter screen board hole jam influence screening.

Description

Grading and screening equipment for granular materials

Technical Field

The invention belongs to the field of material preparation, and particularly relates to grading and screening equipment for granular materials.

Background

The material is a general term aiming at processed objects in the prior production technology, from liquid to granular solid can be used as the material during processing, the granular material has wide range in the field of feed, and the granular material can be more conveniently absorbed by animals and plants through reasonable size.

A chinese patent publication No. CN212309504U discloses patent titles: the utility model provides an avoid inhomogeneous multiple screening equipment of chemical material granularity, includes the stirring storehouse, the inside swing joint in stirring storehouse has the drive shaft, the right-hand member fixedly connected with drive tooth of drive shaft, the left side fixedly connected with helical gear of drive shaft, the below swing joint who drives the tooth has driven tooth.

When the materials are bagged and stored under the shed for a long time, a small amount of rainwater wets the materials in rainy days, the materials are adhered together after being softened by the rainwater, the materials are partially agglomerated by being dried by sunlight in sunny days, and when the wetted, adhered and agglomerated materials are mixed by using the material mixing machine, the wetted, adhered and agglomerated materials are difficult to be screened for use, so that the problem of uneven material mixing is caused, and the quality of subsequent mixed materials is influenced.

Therefore, the invention provides a grading and screening device for granular materials.

Disclosure of Invention

To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a grading and screening device for particle materials, which comprises mixing equipment; the end part of the mixing equipment is fixedly connected with a screening barrel; the inner side wall of the screening barrel is fixedly connected with a motor frame; the bottom end of the motor frame is fixedly connected with a servo motor; the output end of the servo motor is fixedly connected with a rotating shaft; two groups of scraping plates are fixedly connected to the side wall of the rotating shaft; a first filter screen plate is fixedly connected to the inner side wall of the screening barrel; the surplus material that wets adhesion and caking is deposited at the terminal surface of filter screen board No. one, the servo motor output that motor frame bottom is connected rotates, drive the pivot and rotate the inside wall at filter screen board No. one, the material scraping of interlock scraper blade to filter screen board terminal surface, the scraper blade will wet adhesion and the material of caking and filter screen board hole friction and make it pulverize and drop, the material that can't pulverize for a long time can be taken out by the manual work and further processed, avoid the inside inhomogeneous problem of mixing that appears that the material of large granule falls into mixing apparatus, influence the subsequent absorption of crops.

Preferably, two groups of through holes are formed in the side wall of the screening barrel; the inner side wall of the screening barrel is fixedly connected with a first iron filter screen and is positioned in the through hole; a second iron filter screen is fixedly connected to the inner side wall of the screening barrel and corresponds to the first iron filter screen in position; a fan is mounted on the inner side wall of the screening barrel, and an electric heating wire is arranged on the side wall of the fan; the fan rotates the outside air of extraction and bloies to the inside of screening bucket, the cooperation heater strip blows off hot-blastly, weather the wet material of filter plate terminal surface No. one, No. one the iron filter screen plays the filterable effect to external impurity, No. two iron filter screens play and stop the material and scrape out the effect of ventilation by the scraper blade, can close the fan when the material does not wet not caking, utilize the scraper blade scraping to pulverize the material after the drying simultaneously, the utilization of reinforcing material to the cooperation quick drying material.

Preferably, the inner side wall of the scraper is connected with a sliding plate in a sliding manner; the side wall of the sliding plate is fixedly connected with an elastic part, and one end of the elastic part is fixedly connected with the inner side wall of the scraper; the inner side wall of the scraper is connected with a sliding baffle in a sliding manner, and the sliding baffle is L-shaped; a plurality of groups of scraping brushes are fixedly connected to the bottom end of the scraping plate; the sliding plate simultaneously extrudes the elastic part to shrink and bear force, the gas in the scraper blade is extruded to eject out the sliding baffle plate, the sliding baffle plate is utilized to play a role in preventing the material from turning over the scraper blade, and meanwhile, a plurality of groups of scraping brushes at the bottom end of the scraper blade clean the residual material powder in the holes on the end face of the first filter screen plate, so that the blockage caused by excessive adhesion of the material near the holes is avoided.

Preferably, the inner side wall of the scraper is rotatably connected with a scraping roller, and the side wall of the scraping roller is fixedly connected with a plurality of groups of arc-shaped plates; a connecting pull rope is wound on the side wall of the scraping roller, and one end of the connecting pull rope is fixedly connected with the side wall of the sliding plate; a first torsion spring is arranged inside the scraping roller, and one end of the first torsion spring is fixedly connected with the inner side wall of the scraping plate; the arc of scraping the material roller lateral wall scrapes the material and sweeps, outwards turns away the material, reduces servo motor's load, strengthens the scraping effect of scraper blade, can utilize servo motor reversal to discharge the material when the scraper blade is inside to be blockked up, and when scraper blade department accumulational material was less simultaneously, the elastic component extrusion sliding plate resets, and a torsional spring drives the lateral wall of connecting the stay cord rolling at the scraping roller.

Preferably, two groups of second torsion springs are mounted on the inner side wall of the screening barrel; the side wall of the second torsion spring is fixedly connected with a connecting plate; the connecting plate is Y-shaped; one side of the connecting plate, which is positioned at the end part, is fixedly connected with a magnetic ball; the interior of the scraper is fixedly connected with a magnetic block; the magnetic ball and the magnetic block can repel each other when approaching each other; the magnetic ball utilizes the connecting plate to rotate along with No. two torsional springs and sways downwards, and when the magnetic ball was kept away from to the magnetic path, the torsion of No. two torsional springs drove the magnetic ball rapidly and resets, strikes the bottom surface vibrations of filter plate No. one, and the last and material vibrations of adhesion material drop on with filter plate, avoid the hole influence screening effect of a large amount of materials end and material jam filter plate No. one.

Preferably, the inner side wall of the screening barrel is fixedly connected with a second filter screen plate, and the hole diameter of the second filter screen plate is smaller than that of the first filter screen plate; one end of the connecting plate, which is far away from the second torsion spring, is fixedly connected with a hitting ball and is opposite to the magnetic ball; make its internal mixing that drops mixing apparatus, during the hole of the No. two filter plate of the last adhesion of material that pulverizes simultaneously, the magnetic path is close to the magnetism ball and repels, and the magnetism ball drives the connecting plate and pushes down rapidly, strikes the ball and heavily strikes the terminal surface of No. two filter plate, plays the effect of vibrations, avoids the material to block up the hole influence screening of No. two filter plate.

Preferably, a guide plate is fixedly connected to the bottom end of the second filter screen plate; the inner side wall of the screening barrel is fixedly connected with a third filter screen plate, and the diameter of a hole of the third filter screen plate is the same as that of the second filter screen plate; the middle granular material scrapes sweeps the lateral wall landing to No. three filter plate of scraping into the guide plate on, collects middle granular material, avoids a large amount of middle granular material to cause the jam to No. two filter plate's terminal surface, influences the effect of screening, utilizes No. three filter plate's slope to play the effect to material water conservancy diversion evenly distributed simultaneously.

Preferably, an electric push rod is fixedly connected inside the screening barrel; the output end of the electric push rod is fixedly connected with a matching pressing plate, and the matching pressing plate slides on the inner side wall of the screening barrel; a plurality of groups of crushing needles are fixedly connected to the bottom end of the matching pressing plate, and the crushing needles correspond to the holes of the third filter screen plate; the tip of a crushing needle fixedly connected with the bottom end of the matching pressing plate penetrates through the hole of the third filter screen plate to crush the medium particle materials, and the matching pressing plate is matched with the end face of the third filter screen plate to be attached and rolled, so that the medium particle materials can be recycled.

Preferably, the side wall of the crushing needle is fixedly connected with a plurality of groups of soft scrapers which are fixedly connected to the side wall of the crushing needle in a surrounding manner; when the crushing needle penetrates through the holes of the third filter screen plate, a plurality of groups of soft scraping hairs are driven to clean materials, and the materials are prevented from being adhered to the third filter screen plate in a large quantity.

Preferably, a first friction pad is fixedly connected to the end part of the magnetic ball; a second friction pad is fixedly connected to the bottom end of the knocking ball; the knocking loss of the first filter screen plate is reduced, the second friction pad is used for protecting the bottom surface of the knocking ball, abrasion caused by long-time knocking of the knocking ball and the end surface of the second filter screen plate is avoided, the protection effect is achieved, and the vibrating and screening effect is enhanced.

The invention has the following beneficial effects:

1. the grading and screening device for the granular materials, which is disclosed by the invention, is characterized in that through the arranged first filter screen plate, when the material is wetted, bonded and agglomerated and then mixed by using a mixing device, a plurality of materials are poured into the sieving barrel, small and medium particle materials are mixed in the mixing device through a filter screen plate, the scraper blade rotates along with the output end of the servo motor, the agglomerated and adhered materials accumulated on the end face of the filter screen plate are scraped, a fan is matched to rotate to blow hot air for drying the materials, the materials are scraped and dropped and mixed by the scraper blade after being dried, when a large number of materials are accumulated on the end face of the filter screen plate, the scraper blade rotates and scrapes, the sliding plate slides to enable the sliding baffle to stretch out and shield, the pull rope is matched to pull the scraper roller to turn out the materials, the scraping and rolling effect of the scraper blade is avoided being influenced, finally, the magnetic block is utilized to repel the magnetic ball to continuously knock the bottom face of the filter screen plate, and the blockage of the filter screen plate is avoided influencing the sieving effect.

2. According to the grading and screening equipment for the granular materials, provided by the invention, when finer materials need to be screened, the medium granular materials are screened out by the second filter screen plate, the medium granular materials are scraped into the guide plate by the scraper and slide down, the medium granular materials are accumulated on the third filter screen plate and collected, the end surface of the second filter screen plate is knocked by matching with knocking balls, so that the blockage of holes of the second filter screen plate is avoided, the output end of the electric push rod drives the matching press plate to slide down to crush the medium granular materials, the crushing effect of the medium granular materials is achieved by matching with the crushing needle, and finally, the holes of the third filter screen plate are cleaned by utilizing a plurality of groups of soft scraping hairs, so that a large amount of materials are prevented from being adhered to the third filter screen plate.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of a mixing apparatus of the present invention;

FIG. 2 is a cross-sectional view of a screening can of the present invention;

FIG. 3 is an enlarged view at A of FIG. 2;

FIG. 4 is a cross-sectional view of the flight of the present invention;

FIG. 5 is a schematic view of a mating platen configuration of the present invention;

fig. 6 is a schematic view of a magnetic ball structure in the present invention.

In the figure: 1. a mixing device; 11. a screening barrel; 12. a motor frame; 13. a servo motor; 14. a rotating shaft; 15. a squeegee; 16. a first filter screen plate; 2. an iron filter screen; 21. a second iron filter screen; 22. a fan; 3. a sliding plate; 31. an elastic member; 32. a sliding baffle; 33. scraping the hairbrush; 4. a scraping roller; 41. connecting a pull rope; 42. a first torsion spring; 5. a second torsion spring; 51. a connecting plate; 52. a magnetic ball; 53. a magnetic block; 6. a second filter screen plate; 61. knocking and hitting the ball; 7. a baffle; 71. a third filter screen plate; 8. an electric push rod; 81. matching with a pressing plate; 82. breaking the needle; 9. soft shaving; 91. a first friction pad; 92. and a second friction pad.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to 4, a classifying and screening device for particulate materials according to an embodiment of the present invention includes a mixing device 1; the end part of the mixing device 1 is fixedly connected with a screening barrel 11; the inner side wall of the screening barrel 11 is fixedly connected with a motor frame 12; a servo motor 13 is fixedly connected to the bottom end of the motor frame 12; the output end of the servo motor 13 is fixedly connected with a rotating shaft 14; two groups of scraping plates 15 are fixedly connected to the side wall of the rotating shaft 14; a first filter screen plate 16 is fixedly connected to the inner side wall of the screening barrel 11; when the materials are bagged and stored under a shed for a long time, a small amount of rainwater wets the materials in rainy days, the materials are adhered together after being softened by the rainwater, the materials are partially caked by sunlight in sunny days, when the wetted, adhered and caked materials are mixed by using the mixing device 1, the wetted, adhered and caked materials are difficult to screen and use, so that the problem of uneven material mixing is caused, the absorption of crops is seriously influenced when the materials are used, therefore, when the materials are mixed, a plurality of groups of materials are poured into the screening barrel 11, the materials fall on the end surface of the first filter screen plate 16, medium and small granular materials fall into the mixing device 1 through the first filter screen plate 16 to be mixed, the residual wetted, adhered and caked materials are deposited on the end surface of the first filter screen plate 16, the output end of the servo motor 13 connected with the bottom end of the motor frame 12 rotates to drive the rotating shaft 14 to rotate on the inner side wall of the first filter screen plate 16, the linkage scraper 15 scrapes the materials on the end face of the first filter screen plate 16, the materials which are wetted, adhered and agglomerated are rubbed with the holes of the first filter screen plate 16 by the scraper 15 to be crushed and fall, the materials which cannot be crushed for a long time can be manually taken out for further processing, and the problem that large-particle materials fall into the mixing equipment 1 to be mixed unevenly and influence the subsequent absorption of crops is avoided.

As shown in fig. 1 to 3, two sets of through holes are formed on the side wall of the sieving barrel 11; the inner side wall of the screening barrel 11 is fixedly connected with a first iron filter screen 2 and is positioned in the through hole; a second iron filter screen 21 is fixedly connected to the inner side wall of the screening barrel 11 and corresponds to the first iron filter screen 2 in position; a fan 22 is installed on the inner side wall of the screening barrel 11, and an electric heating wire is arranged on the side wall of the fan 22; after the materials in the bags are wetted by rainwater, partial materials are adhered together, the materials are not convenient to screen and mix, when multiple materials are poured into the screening barrel 11 for mixing, the materials with medium and small particles fall into the mixing device 1 through the first screen plate 16 for mixing, the wetted materials, adhered with agglomerates and large-sized materials are accumulated on the end face of the first screen plate 16 and scraped by the scraper 15, the fan 22 rotates to extract outside air to blow the inside of the screening barrel 11, hot air is blown out by matching with the heating wire, the wet materials on the end face of the first screen plate 16 are dried, the first iron screen 2 plays a role in filtering outside impurities, the second iron screen 21 plays a role in blocking the materials from being scraped out by the scraper 15 to be ventilated, the fan 22 can be closed when the materials are not wetted and agglomerated, meanwhile, the crushed and dried materials are scraped by using the scraper 15, utilization of the materials is enhanced, and the materials are matched for fast drying.

As shown in fig. 2 to 4, a sliding plate 3 is slidably connected to the inner side wall of the scraper 15; the side wall of the sliding plate 3 is fixedly connected with an elastic part 31, and one end of the elastic part 31 is fixedly connected with the inner side wall of the scraper 15; the inner side wall of the scraper 15 is connected with a sliding baffle 32 in a sliding manner, and the sliding baffle 32 is L-shaped; a plurality of groups of scraping brushes 33 are fixedly connected with the bottom end of the scraping plate 15; when a large amount of caking and the material of wetting adhesion pile up when the terminal surface of a filter screen board 16, can directly cross scraper 15 during the scraping, influence scraper 15's scraping and pulverize the stoving effect, so utilize scraper 15's inclined plane cavity to scrape the material, can extrude sliding plate 3 when the material is piled up abundantly and slide, sliding plate 3 extrudes elastic component 31 shrink atress simultaneously, push out sliding baffle 32 with the inside gaseous extrusion of scraper 15, utilize sliding baffle 32 to play the effect that blocks the material and cross scraper 15, the multiunit scraping brush 33 of scraper 15 bottom cleans the remaining material powder of a filter screen board 16 terminal surface hole simultaneously, avoid near hole material adhesion too much to cause the jam.

As shown in fig. 4, the inner side wall of the scraper 15 is rotatably connected with a scraper roll 4, and the side wall of the scraper roll 4 is fixedly connected with a plurality of groups of arc-shaped plates; a connecting pull rope 41 is wound on the side wall of the scraping roller 4, and one end of the connecting pull rope 41 is fixedly connected with the side wall of the sliding plate 3; a first torsion spring 42 is arranged inside the scraping roller 4, and one end of the first torsion spring is fixedly connected with the inner side wall of the scraping plate 15; when a large amount of materials are scraped by the scraper 15, the adhesion and the caking materials increase the load of the output end rotation of the servo motor 13, the servo motor 13 is heated and seriously damaged for a long time, so when the sliding plate 3 is extruded and slides by the materials, the connecting pull rope 41 is driven to pull, the scraper roller 4 rotates along with the pulling of the connecting pull rope 41, the arc plates on the side wall of the scraper roller 4 scrape and sweep the materials, the materials are outwards turned, the load of the servo motor 13 is reduced, the scraping effect of the scraper 15 is enhanced, when the scraper 15 is internally blocked, the materials can be reversely rotated by the servo motor 13 and discharged, meanwhile, when the accumulated materials at the scraper 15 are small, the elastic piece 31 extrudes the sliding plate 3 to reset, and the first torsion spring 42 drives the connecting pull rope 41 to be wound on the side wall of the scraper roller 4.

As shown in fig. 2 to 6, two sets of second torsion springs 5 are mounted on the inner side wall of the sieving barrel 11; the side wall of the second torsion spring 5 is fixedly connected with a connecting plate 51; the connecting plate 51 is Y-shaped; a magnetic ball 52 is fixedly connected to one side of the end part of the connecting plate 51; a magnet 53 is fixedly connected inside the scraper 15; when the magnetic ball 52 and the magnetic block 53 are close to each other, they can repel each other; when a large amount of material ends and adhesion material jam when the hole department of a filter screen board 16, utilize scraper blade 15 to rotate along with pivot 14 and scrape the terminal surface of a filter screen board 16, the magnetic path 53 repels scraper blade 15 when being close to magnetic ball 52, magnetic ball 52 utilizes connecting plate 51 to rotate along with No. two torsional springs 5 and sways downwards, when magnetic path 53 kept away from magnetic ball 52, the torsion of No. two torsional springs 5 drives magnetic ball 52 fast and resets, strike the bottom surface vibrations of a filter screen board 16, with the last adhesion material end of a filter screen board 16 and material vibrations drop, avoid a large amount of material ends and the hole influence screening effect of material jam a filter screen board 16.

As shown in fig. 2 to 3, a second filter screen plate 6 is fixedly connected to the inner side wall of the sieving barrel 11, and the hole diameter of the second filter screen plate 6 is smaller than that of the first filter screen plate 16; one end of the connecting plate 51, which is far away from the second torsion spring 5, is fixedly connected with a hitting ball 61 and is opposite to the magnetic ball 52; when fine materials are required to be mixed, the materials are poured into the sieving barrel 11, small and medium-sized granular materials fall through the holes of the first filter screen plate 16, the small granular materials fall into the mixing equipment 1 through the holes of the second filter screen plate 6 to be mixed, medium-sized granular materials fall on the end face of the second filter screen plate 6, the scraper 15 scrapes and crushes the medium-sized granular materials to enable the small granular materials to fall into the mixing equipment 1 to be mixed, meanwhile, when the crushed materials are adhered to the holes of the second filter screen plate 6, the magnetic blocks 53 are repelled close to the magnetic balls 52, the magnetic balls 52 drive the connecting plate 51 to be quickly knocked down, the knocking balls 61 hit the end face of the second filter screen plate 6 again, the vibration effect is achieved, and the influence on sieving caused by the materials blocking the holes of the second filter screen plate 6 is avoided.

As shown in fig. 2, a flow guide plate 7 is fixedly connected to the bottom end of the second filter screen plate 6; a third filter screen plate 71 is fixedly connected to the inner side wall of the screening barrel 11, and the hole diameter of the third filter screen plate 71 is the same as that of the second filter screen plate 6; no. two filter plate 6's hole diameter is little, be difficult to sieve fast, the screening plug of middle grade granule material piles up at the terminal surface of No. two

filter plate

6, 15 scrapes middle grade granule material of scraper blade, middle grade granule material scrapes sweeps and scrapes into guide plate 7's lateral wall landing to No. three filter plate 71 on, middle grade granule material of centering is collected, avoid a large amount of middle grade granule material to cause the jam to No. two filter plate 6's terminal surface, influence the effect of screening, the slope that utilizes No. three filter plate 71 simultaneously can play the effect to material water conservancy diversion evenly distributed.

As shown in fig. 2 to 5, an electric push rod 8 is fixedly connected inside the sieving barrel 11; the output end of the electric push rod 8 is fixedly connected with a matching pressing plate 81, and the matching pressing plate 81 slides on the inner side wall of the screening barrel 11; a plurality of groups of crushing needles 82 are fixedly connected to the bottom end of the matching pressure plate 81, and the crushing needles 82 correspond to holes of the third screen plate 71; after the medium particle materials are collected on the end face of the third filter screen plate 71, the output end of the electric push rod 8 drives the matching pressing plate 81 to slide downwards, the tip of the crushing needle 82 fixedly connected with the bottom end of the matching pressing plate 81 penetrates through the hole of the third filter screen plate 71 to crush the medium particle materials, and the matching pressing plate 81 is matched with the end face of the third filter screen plate 71 to be attached and rolled, so that the medium particle materials can be recycled.

As shown in fig. 5, a plurality of groups of soft bristles 9 are fixedly connected to the side wall of the crushing needle 82, and the soft bristles 9 are fixedly connected to the side wall of the crushing needle 82 in a surrounding manner; when the material is crushed by the pressing plate 81, part of the material adheres to the holes of the third filter screen plate 71, and the crushing needle 82 penetrates through the holes of the third filter screen plate 71 to drive the plurality of groups of soft bristles 9 to clean the material, so that the material is prevented from adhering to the third filter screen plate 71 in a large amount.

Example two

As shown in fig. 6, a first comparative example, in which another embodiment of the present invention is: a first friction pad 91 is fixedly connected to the end part of the magnetic ball 52; a second friction pad 92 is fixedly connected to the bottom end of the knocking ball 61; the long-time magnetic block 53 repels the magnetic ball 52, the magnetic ball 52 resets and gravity strikes the first screen plate 16, the bottom surface of the first screen plate 16 is damaged, and the stability of the first screen plate 16 is reduced, so that the first friction pad 91 is wrapped at the end position of the magnetic ball 52, the striking loss of the first screen plate 16 is reduced, the second friction pad 92 is used for protecting the bottom surface of the striking ball 61, abrasion caused by long-time striking of the striking ball 61 and the end surface of the second screen plate 6 is avoided, a protection effect is achieved, and the vibration screening effect is enhanced.

The working principle is that when the materials are bagged and stored under a shed for a long time, a small amount of rainwater wets the materials in rainy days, the materials are adhered together after being softened by the rainwater, and the materials are partially caked by sunlight in sunny days, when the wetted, adhered and caked materials are mixed by using the mixing device 1, the wetted, adhered and caked materials are difficult to screen and use, so that the problem of uneven mixing of the materials is caused, the absorption of crops is seriously influenced when the materials are used, so when the materials are mixed, a plurality of groups of materials are poured into the screening barrel 11, the materials fall on the end surface of the first filter screen plate 16, the middle and small granular materials fall into the mixing device 1 through the first filter screen plate 16 to be mixed, the rest wetted, adhered and caked materials are deposited on the end surface of the first filter screen plate 16, the output end of the servo motor 13 connected with the bottom end of the motor frame 12 rotates to drive the rotating shaft 14 to rotate on the inner side wall of the first filter screen plate 16, the linkage scraper 15 scrapes materials on the end face of the first filter screen plate 16, the materials which are wetted, adhered and agglomerated are rubbed with the holes of the first filter screen plate 16 by the scraper 15 to be crushed and fall off, the materials which cannot be crushed for a long time can be manually taken out for further processing, and the problem that large-particle materials fall into the mixing equipment 1 to be mixed unevenly and influence the subsequent absorption of crops is avoided; when rainwater wets materials in the bag, partial materials are adhered together, screening and mixing are inconvenient, when multiple materials are poured into the screening barrel 11 for mixing, middle and small granular materials fall into the mixing equipment 1 through the first filter screen plate 16 for mixing, the wetted, adhered and caked large materials are accumulated on the end face of the first filter screen plate 16 and scraped by the scraping plate 15, the fan 22 rotates to extract outside air to blow the air into the screening barrel 11, hot air is blown out by matching with the heating wire to blow the wet materials on the end face of the first filter screen plate 16, the first iron filter screen 2 plays a role in filtering outside impurities, the second iron filter screen 21 plays a role in blocking the air blown by the scraping plate 15, the fan 22 can be closed when the materials are not wetted and caked, meanwhile, the crushed and dried materials are scraped by the scraping plate 15, utilization of the materials is enhanced, and the materials are matched with rapid drying; when a large amount of caking and wetting and adhering materials are accumulated at the end face of the first filter screen plate 16, the scraping plates 15 can be directly turned over during scraping to influence the scraping, grinding and drying effects of the scraping plates 15, so that the materials are scraped by utilizing the inclined cavity of the scraping plates 15, the sliding plates 3 can be extruded to slide when the materials are accumulated more, the sliding plates 3 simultaneously extrude the elastic parts 31 to contract and bear force, the gas in the scraping plates 15 is extruded out of the sliding baffle plates 32, the sliding baffle plates 32 play a role of preventing the materials from turning over the scraping plates 15, and meanwhile, a plurality of groups of scraping brushes 33 at the bottom ends of the scraping plates 15 clean the residual material powder in the holes at the end face of the first filter screen plate 16, so that the blockage caused by excessive adhesion of the materials near the holes is avoided; when a large amount of materials are scraped by the scraper 15, the adhered and caked materials increase the rotating load of the output end of the servo motor 13, and the servo motor 13 is heated and seriously damaged for a long time, so that when the sliding plate 3 is extruded and slid by the materials, the connecting pull rope 41 is driven to pull, the scraper roller 4 rotates along with the pulling of the connecting pull rope 41, the arc-shaped plate on the side wall of the scraper roller 4 scrapes the materials, the materials are outwards turned, the load of the servo motor 13 is reduced, the scraping effect of the scraper 15 is enhanced, when the scraper 15 is internally blocked, the materials can be discharged by reversely rotating the servo motor 13, meanwhile, when the materials accumulated at the scraper 15 are small, the elastic piece 31 extrudes the sliding plate 3 to reset, and the first torsion spring 42 drives the connecting pull rope 41 to be wound on the side wall of the scraper roller 4; when a large amount of material powder and adhesive materials are blocked at the holes of the first filter screen plate 16, the scraper 15 rotates along with the rotating shaft 14 to scrape the end face of the first filter screen plate 16, the magnetic block 53 is close to the magnetic ball 52 and repels the scraper 15, the magnetic ball 52 rotates along with the second torsion spring 5 by using the connecting plate 51 and swings downwards, when the magnetic block 53 is far away from the magnetic ball 52, the torsion of the second torsion spring 5 quickly drives the magnetic ball 52 to reset, the bottom surface of the first filter screen plate 16 is knocked to vibrate, the material powder and the material adhered to the first filter screen plate 16 are vibrated and fall off, and the problem that the holes of the first filter screen plate 16 are blocked by a large amount of material powder and material to influence the screening effect is avoided; when fine materials are required to be mixed, the materials are poured into the sieving barrel 11, small and medium-sized particle materials fall through the holes of the first filter screen plate 16, the small particle materials fall into the mixing equipment 1 through the holes of the second filter screen plate 6 to be mixed, medium-sized particle materials fall on the end face of the second filter screen plate 6, the scraper 15 scrapes and crushes the medium-sized particle materials to enable the small particle materials to fall into the mixing equipment 1 to be mixed, meanwhile, when the crushed materials are adhered to the holes of the second filter screen plate 6, the magnetic blocks 53 are repelled close to the magnetic balls 52, the magnetic balls 52 drive the connecting plate 51 to be quickly knocked down, the knocking balls 61 hit the end face of the second filter screen plate 6 again, the vibration effect is achieved, and the influence on sieving caused by the materials blocking the holes of the second filter screen plate 6 is avoided; the diameter of the holes of the second filter screen plate 6 is small, rapid screening is difficult, when screening blockage of medium granular materials is accumulated on the end face of the second filter screen plate 6, the scraper 15 scrapes the medium granular materials, the medium granular materials scrape the side wall of the guide plate 7 and slide to the third filter screen plate 71, and the medium granular materials are collected, so that the problem that the end face of the second filter screen plate 6 is blocked by a large amount of medium granular materials to influence the screening effect is avoided, and meanwhile, the slope face of the third filter screen plate 71 can play a role in uniformly distributing the material flow guiding; after the medium particle materials are collected on the end face of the third filter screen plate 71, the output end of the electric push rod 8 drives the matching pressing plate 81 to slide downwards, the tip of a crushing needle 82 fixedly connected with the bottom end of the matching pressing plate 81 penetrates through a hole of the third filter screen plate 71 to crush the medium particle materials, and the matching pressing plate 81 is matched with the end face of the third filter screen plate 71 to be attached and rolled, so that the medium particle materials can be recycled; when the material is crushed by the pressing plate 81, part of the material adheres to the holes of the third filter screen plate 71, and the crushing needle 82 penetrates through the holes of the third filter screen plate 71 to drive the plurality of groups of soft bristles 9 to clean the material, so that the material is prevented from adhering to the third filter screen plate 71 in a large amount.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A classifying and screening device for granular materials is characterized in that: comprising a mixing device (1); a screening barrel (11) is fixedly connected to the end part of the mixing equipment (1); the inner side wall of the screening barrel (11) is fixedly connected with a motor frame (12); a servo motor (13) is fixedly connected to the bottom end of the motor frame (12); the output end of the servo motor (13) is fixedly connected with a rotating shaft (14); two groups of scraping plates (15) are fixedly connected to the side wall of the rotating shaft (14); the inner side wall of the screening barrel (11) is fixedly connected with a first screen plate (16).

2. A device for classifying and screening particulate material as claimed in claim 1, wherein: two groups of through holes are formed in the side wall of the screening barrel (11); a first iron filter screen (2) is fixedly connected to the inner side wall of the screening barrel (11) and is positioned in the through hole; a second iron filter screen (21) is fixedly connected to the inner side wall of the screening barrel (11) and corresponds to the first iron filter screen (2); the fan (22) is installed to the inside wall of screening bucket (11), and the lateral wall of fan (22) is provided with the heating wire.

3. A device for classifying and screening particulate material as claimed in claim 1, wherein: the inner side wall of the scraper (15) is connected with a sliding plate (3) in a sliding way; the side wall of the sliding plate (3) is fixedly connected with an elastic part (31), and one end of the elastic part (31) is fixedly connected with the inner side wall of the scraper (15); the inner side wall of the scraper (15) is connected with a sliding baffle (32) in a sliding manner, and the sliding baffle (32) is L-shaped; the bottom end of the scraping plate (15) is fixedly connected with a plurality of groups of scraping brushes (33).

4. A device for classifying and screening particulate material as claimed in claim 3, wherein: the inner side wall of the scraper (15) is rotatably connected with a scraping roller (4), and the side wall of the scraping roller (4) is fixedly connected with a plurality of groups of arc-shaped plates; a connecting pull rope (41) is wound on the side wall of the scraping roller (4), and one end of the connecting pull rope (41) is fixedly connected with the side wall of the sliding plate (3); the scraping roller (4) is internally provided with a torsion spring (42), and one end of the torsion spring is fixedly connected with the inner side wall of the scraping plate (15).

5. A device for classifying and screening particulate material as claimed in claim 2, wherein: two groups of second torsion springs (5) are mounted on the inner side wall of the screening barrel (11); a connecting plate (51) is fixedly connected to the side wall of the second torsion spring (5); the connecting plate (51) is Y-shaped; a magnetic ball (52) is fixedly connected to one side of the end part of the connecting plate (51); a magnet block (53) is fixedly connected inside the scraper (15); when the magnetic ball (52) and the magnetic block (53) are close to each other, the magnetic ball and the magnetic block can repel each other.

6. A device for classifying and screening particulate material as claimed in claim 5, wherein: a second filter screen plate (6) is fixedly connected to the inner side wall of the screening barrel (11), and the hole diameter of the second filter screen plate (6) is smaller than that of the first filter screen plate (16); one end of the connecting plate (51), which is far away from the second torsion spring (5), is fixedly connected with a hitting ball (61) which is opposite to the magnetic ball (52).

7. A device for classifying and screening particulate material as claimed in claim 6, wherein: a guide plate (7) is fixedly connected to the bottom end of the second filter screen plate (6); the inside wall rigid coupling of screening bucket (11) has No. three filter screen boards (71), and the hole diameter of No. three filter screen boards (71) is the same with No. two filter screen boards (6).

8. An apparatus as claimed in claim 7, wherein the apparatus further comprises: an electric push rod (8) is fixedly connected inside the screening barrel (11); the output end of the electric push rod (8) is fixedly connected with a matching pressing plate (81), and the matching pressing plate (81) slides on the inner side wall of the screening barrel (11); the bottom end of the matching pressing plate (81) is fixedly connected with a plurality of groups of crushing needles (82), and the crushing needles (82) correspond to holes of the third screen plate (71).

9. A device for classifying and screening particulate material as claimed in claim 8, wherein: the side wall of the crushing needle (82) is fixedly connected with a plurality of groups of soft shaving hairs (9), and the soft shaving hairs (9) are fixedly connected to the side wall of the crushing needle (82) in a surrounding mode.

10. A device for classifying and screening particulate material as claimed in claim 6, wherein: a first friction pad (91) is fixedly connected to the end part of the magnetic ball (52); and a second friction pad (92) is fixedly connected to the bottom end of the knocking ball (61).