CN217094315U

CN217094315U - Rotary circular sieve

Info

Publication number: CN217094315U
Application number: CN202123072949.7U
Authority: CN
Inventors: 李振岩; 阮青海; 马凤德
Original assignee: Jiangsu Famsun Intelligent Technology Co Ltd
Current assignee: Jiangsu Famsun Intelligent Technology Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-08-02
Anticipated expiration: 2031-12-08

Abstract

The utility model relates to a rotary circular sieve, include: the first shell is a cavity with openings at the upper end and the lower end, the upper end of the first shell forms a feeding hole, and the lower end of the first shell forms a discharging hole; the screening device comprises an annular first side wall, a first bottom plate, at least one discharging barrel and a screen, wherein the first side wall and the discharging barrel are fixedly connected to two sides of the first bottom plate respectively, at least one first opening penetrating through the thickness of the first bottom plate and communicated with the discharging barrel is formed in the first bottom plate, a first discharging channel communicated with a discharging port is formed between the first side wall and the first shell, and the screen is arranged on the first side wall in a concave manner in a covering mode; the driving device is arranged on the first shell, is in transmission connection with the screen and is used for driving the screen to rotate; the material guide device is arranged below the screen and is tightly attached to the first bottom plate; the motion of guide device on first bottom plate can prevent that the material from piling up on the bottom plate, avoids the emergence of putty condition, realizes the efficiency and the output of screening, avoids the loss of material.

Description

Rotary circular sieve

Technical Field

The utility model relates to a screening equipment technical field especially relates to a rotary circular sieve.

Background

With the rapid growth of population and the increase of the demand of people for meat and egg food, the feed is widely used as food for animals raised in agriculture or animal husbandry, and the existing feed is mainly prepared by processing more than ten raw materials such as corn, wheat, sorghum, soybean, rapeseed meal, vinasse, cottonseed meal, peanut meal, sunflower seed meal, rice bran, wheat bran, soybean meal and the like.

During the feed processing, can all use the primary cleaning sieve to filter the raw and other materials that will dope impurity when preparing raw and other materials, the primary cleaning sieve that has now can carry out preliminary clearance screening to grains such as wheat, maize, rice, the primary cleaning sieve mainly adopts the shale shaker at present, through applying the vibration power to screen cloth structure, realize the components of a whole that can function independently of impurity and raw and other materials, but current shale shaker exists that the structure is comparatively complicated, area is great, the problem of easy putty, and to the problem of easy putty, although current shale shaker has installed the vibrations ball additional, but still can't realize thorough cleanness.

Therefore, it is very important to provide a rotary circular sieve with simple structure and less material blockage.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a rotary circular sieve which has a simple structure and is less prone to material blockage.

The utility model provides a rotary circular sieve, include:

the first shell is a cavity with openings at the upper end and the lower end, the upper end of the first shell forms a feeding hole, and the lower end of the first shell forms a discharging hole;

the screening device comprises an annular first side wall, a first bottom plate, at least one discharging barrel and a screen, wherein two sides of the first bottom plate are fixedly connected with the first side wall and the discharging barrel respectively, at least one first opening penetrating through the thickness of the first bottom plate and communicated with the discharging barrel is formed in the first bottom plate, a first discharging channel communicated with the discharging port is formed between the first side wall and the first shell, and the screen is arranged on the first side wall in a concave manner in a covering manner;

the driving device is arranged in the first shell, is in transmission connection with the screen and is used for driving the screen to rotate;

and the material guide device is arranged below the screen and is tightly attached to the first bottom plate.

In the rotary circular sieve, the driving device acts to drive the screen and the material guiding device to rotate, materials entering from the feeding hole fall onto the screen, at the moment, the materials rotate along with the screen and climb in the screen in an inner concave shape, impurities such as large impurities and stones contained in the materials are thrown out to the outside from the screen under the action of inertia, the impurities are discharged to the discharging hole through a first discharging channel between the first shell and the first side wall to guide out the rotary circular sieve, finished products in the materials fall back along the screen, one part of the materials directly fall into the discharging barrel through the first opening through meshes of the screen, the other part of the materials fall onto the first bottom plate and are pushed into the first opening through the material guiding device tightly attached to the first bottom plate and fall into the discharging barrel, the finished products are guided out of the rotary circular sieve, the sieving of the materials is realized, and the inner concave structure of the screen can prevent the materials from gathering and stacking on the screen to influence the sieving of the materials, simultaneously can increase the discharge area of material, avoid the emergence of the putty condition, the motion of guide device on first bottom plate can prevent moreover that the material from piling up on the bottom plate, avoids the emergence of the putty condition, realizes the efficiency and the output of screening, avoids the loss of material. And screening plant and drive arrangement set up in first casing to the produced rotary drive of drive arrangement adopts vibration drive's shale shaker for current, above-mentioned rotary circular sieve's simple structure is small and exquisite.

In one embodiment, the screen mesh comprises a flat screen positioned on the bottom plate and a throwing screen expanding upwards and outwards along the outer edge of the flat screen, the driving device comprises at least one group of pressing assemblies, each pressing assembly comprises a pressing cover and a pressing seat, and the pressing seats and the pressing covers are respectively arranged on the upper side and the lower side of the flat screen and clamp the flat screen through the connection of the pressing seats and the pressing covers.

In one embodiment, the material guiding device comprises a plurality of first scraping plates, and the plurality of first scraping plates are arranged on the pressing seat, are tightly attached to the first bottom plate and extend towards the outer edge of the screen.

In one embodiment, the first scrapers are uniformly distributed along the circumferential direction of the pressing seat.

In one embodiment, the side of the first scraper close to the first bottom plate is provided with an adhesive tape.

In one embodiment, the material guiding device further comprises a plurality of material guiding plates, and the material guiding plates are mounted on the two first scraping plates along a tangential direction of the outer circular surface of the pressing base.

In one embodiment, the discharging barrel is arranged between the two first scraping plates and is positioned in the revolution coverage area of the guide plate.

In one embodiment, the rotary circular sieve further comprises a scraping device and a mounting frame, the mounting frame is erected in the first shell and located above the screen, the scraping device comprises a plurality of second scrapers, and the second scrapers are distributed along the circumferential direction of the first side wall and detachably mounted below the mounting frame and tightly attached to the throwing sieve.

In one embodiment, the rotary circular screen further comprises a connecting device, the connecting device comprises a plurality of support plates and a plurality of connecting rods, the plurality of support plates are mounted on the mounting frame, the connecting rods are rotatably mounted on the mounting frame, and the second scraper is obliquely mounted on the connecting rods in the vertical direction.

In one embodiment, the rotary circular sieve further comprises a material homogenizing cover, a support rod protrudes from one side of the supporting plate far away from the first side wall, the material homogenizing cover is arranged on the support rod, a first end of the material homogenizing cover is covered on the middle area of the sieve screen, and a second end of the material homogenizing cover protrudes towards the feed inlet.

Drawings

Fig. 1 is a schematic structural view of a rotary circular sieve provided by the present invention;

fig. 2 is a cross-sectional view of a rotary circular screen provided by the present invention;

fig. 3 is a cross-sectional view of another rotary circular screen provided by the present invention;

fig. 4 is a cross-sectional view of a rotary circular sieve provided by the present invention after a first shell is removed;

fig. 5 is a schematic structural view of the rotary circular sieve provided by the present invention after the first casing is removed;

fig. 6 is a cross-sectional view of a module composed of a screening device and a driving device in a rotary circular sieve provided by the present invention;

FIG. 7 is a bottom view of the module comprising the screening device and the driving device of FIG. 6;

FIG. 8 is a schematic structural diagram of a module formed by the sieving device and the driving device in FIG. 6;

FIG. 9 is a schematic structural view of the rotary circular sieve in FIG. 1 with the top cover removed;

fig. 10 is a schematic view of the module formed by the scraping device and the homogenizing cover in fig. 9.

Reference numerals:

10. rotating the circular sieve;

100. a first housing; 110. a feed inlet; 120. a discharge port; 130. an outer housing; 140. a discharge shell; 150. a top cover; 160. an access door;

200. a screening device; 210. a second housing; 211. a first side wall; 212. a first base plate; 213. a discharging barrel; 220. screening a screen; 221. a plane screen; 222. throwing and screening; 230. a blocking plate;

300. a drive device; 310. a first rotation driving unit; 311. a drive motor; 312. a commutator; 313. rotating the rod; 320. a transmission unit; 321. a drive shaft; 322. a transmission seat; 323. fixing a sleeve; 324. a bearing; 325. a sealing plate; 326. a mounting base; 327. a flange plate; 330. a compression assembly; 331. a compression cover; 332. a pressing seat;

400. a first discharge channel;

500. a material guiding device; 510. a first squeegee; 511. an adhesive tape; 520. a material guide plate;

600. a scraping device; 610. a second squeegee;

700. a mounting frame;

800. a connecting device; 810. a support plate; 811. a support bar; 820. a connecting rod;

900. a material homogenizing cover; 910. a first end; 920. a second end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

The technical solution provided by the embodiments of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides a rotary circular sieve 10 for separating impurities from finished products in a feed processing material, the rotary circular sieve 10 includes several parts of a first casing 100, at least one sieving device 200 and a driving device 300, the number of the sieving devices 200 may be one, two or more than two, wherein:

the first shell 100 is a cavity with openings at the upper end and the lower end, a feed inlet 110 is formed at the upper end of the first shell 100, the feed inlet 110 is used for inputting materials, a discharge outlet 120 is formed at the lower end of the first shell 100, and the discharge outlet 120 is used for outputting sundries; when specifically setting up, first casing 100 includes shell body 130, ejection of compact casing 140 and top cap 150, ejection of compact casing 140 sets up the below at shell body 130, and ejection of compact casing 140 can be hopper-shaped, the one end that outer shell body 130 was kept away from to ejection of compact casing 140 forms discharge gate 120, top cap 150 covers the upper end of establishing at shell body 130, feed inlet 110 has been seted up on the middle zone of top cap 150, the both sides of top cap 150 can also be provided with access door 160 that can overturn, so that the maintenance of gyration circular screen 10.

Each screening device 200 comprises a second casing 210 and a screen 220, the second casing 210 comprises an annular first side wall 211, a first bottom plate 212 and at least one discharging barrel 213, two sides of the first bottom plate 212 are respectively and fixedly connected with the first side wall 211 and the discharging barrel 213, at least one first opening is arranged on the first bottom plate 212, the first opening penetrates through the first bottom plate 212 along the thickness direction of the first bottom plate 212, and the first opening is communicated with the discharging cylinder 213, and the first discharging passage 400 is formed between the first sidewall 211 and the first housing 100, the first discharging channel 400 is communicated with the discharging hole 120, the first sidewall 211 and the first bottom plate 212 form an annular cavity, the discharging barrel 213 forms a second discharging channel, the second discharge channel extends out of the first shell 100, the annular cavity is opposite to the opening of the feed inlet 110, the screen 220 is concave, and the screen 220 is covered in the annular cavity; when the screen is specifically arranged, the number of the discharging cylinders 213 may be one, two, three or more than three, the discharging cylinders 213 are clamped on the first casing 100 to fix the second casing 210 and the first casing 100, and the screen 220 is arranged on the upper edge of the annular cavity or the upper edge of the screen 220 is flush with the upper edge of the annular cavity in a manner of snap connection, hoop connection or the like.

Specifically, the screen 220 includes a flat screen 221 and a casting screen 222, the casting screen 222 is adapted to the first bottom plate 212, the casting screen 222 is located above the first bottom plate 212, the casting screen 221 is located above the first side wall 211, and the casting screen 221 is extended upwards and outwards along an outer edge of the casting screen 222, the casting screen 221 and the casting screen 222 are of an integral structure, an inner surface of the casting screen 221 is connected with the casting screen 222 and is extended upwards and outwards, the inner surface of the casting screen 221 may be arc-shaped to enable the screen 220 to be smoothly transited everywhere, and the inner surface of the casting screen 221 may also be composed of a plurality of inclined surfaces, although the structure of the screen 220 is not limited to the above form, and may also be in other manners capable of meeting the requirements.

The driving device 300 is disposed in the first casing 100, the driving device 300 is in transmission connection with the screen 220, and the driving device 300 is used for driving the screen 220 to rotate; in a specific arrangement, the driving device 300 includes a first rotation driving unit 310, a transmission unit 320 and at least one set of pressing components 330, the first rotation driving unit 310 is disposed outside the second housing 210; in a specific arrangement, the first rotary driving unit 310 may be in the form of a driving motor 311, a commutator 312, and a rotating rod 313. The number of the pressing assemblies 330 is matched with that of the screening devices 200, each pressing assembly 330 comprises a pressing cover 331 and a pressing seat 332, the pressing seats 332 and the pressing covers 331 are respectively arranged on the upper side and the lower side of the plane screen 221, and the pressing seats 332, the pressing covers 331 and the plane screen 221 are fixed into a whole in a threaded connection mode, a buckling connection mode and the like. In a specific arrangement, a first through hole is formed in the first base plate 212, and the pressing base 332 and the pressing cover 331 clamp the screen 220 and press the screen 220 to the driving unit 320. The transmission unit 320 can be in the structural form of a transmission seat 322, a transmission shaft 321 fixing sleeve 323, a bearing 324, two sealing plates 325 and a mounting seat 326, wherein the transmission seat 322 is mounted at the lower end of the pressing seat 332; one end of the transmission shaft 321 is connected with the first rotary driving unit 310, the other end of the transmission shaft passes through the transmission seat 322 and is connected with the pressing seat 332, the fixing sleeve 323 is arranged on the outer side of one end of the transmission shaft 321 close to the pressing seat 332, a bearing 324 is arranged between the fixing sleeve 323 and the transmission shaft 321, the sealing plate 325 is sleeved on the transmission shaft 321 and fixed at two ends of the fixing sleeve 323, and the sealing plate 325 is respectively in sealing connection with the fixing sleeve 323 and the transmission shaft 321; the mounting base 326 has a supporting leg to be placed on the ground, and the first rotary driving unit 310 is installed below the supporting base.

In the rotary circular sieve 10, the driving device 300 acts to drive the sieve 220 to rotate, the material entering from the feeding hole 110 falls onto the sieve 220, at this time, the material rotates with the sieve 220, and climbs in the concave-inner screen 220, impurities such as large impurities and stones contained in the material are thrown out to the outside from the screen 220 under the inertia effect, and are discharged to the discharge port 120 through the first discharge channel 400 between the first shell 100 and the second shell 210 so as to be guided out of the rotary circular screen 10, the finished product in the material falls back along the screen 220, enters the annular cavity of the second shell 210 through the meshes of the screen 220, and is guided out of the rotary circular sieve 10 through the second discharge channel to realize the sieving of the material, and the interior concave structure of screen cloth 220 can prevent that the material from gathering to pile on screen cloth 220 and influencing the screening of material, can increase the discharge area of material simultaneously, avoids the emergence of putty condition. And the sieving device 200 and the driving device 300 are disposed in the first casing 100, and the rotary driving generated by the driving device 300 is simple and compact with respect to the existing vibrating screen using the vibration driving.

In order to further avoid the occurrence of the blocking situation, as shown in fig. 6, 7 and 8, in a preferred embodiment, the rotary circular screen 10 further includes a material guiding device 500, the material guiding device 500 is installed below the screen 220, and the material guiding device 500 is closely attached to the first bottom plate 212. In the above-mentioned rotary circular sieve 10, the finished product falls back along screen cloth 220 in the material, partly mesh that passes through screen cloth 220 is direct falls into play feed cylinder 213 through first opening, another part falls into to first bottom plate 212 on, and push into first opening and fall into play feed cylinder 213 through guide device 500 hugging closely with first bottom plate 212, realize that the above-mentioned rotary circular sieve 10 of finished product derivation, the motion of guide device 500 on first bottom plate 212 can prevent that the material from piling up on the bottom plate, avoid the emergence of the putty condition, realize the efficiency and the output of screening, avoid the loss of material.

The material guiding device 500 has various structures, and in a preferred embodiment, as shown in fig. 6, 7 and 8, the material guiding device 500 includes a plurality of first scrapers 510, the plurality of first scrapers 510 are mounted on the pressing base 332, and the first scrapers 510 extend toward the outer edge of the screen 220, and the first scrapers 510 are closely attached to the first bottom plate 212. In particular arrangements, the first scraper 510 extends from the edge of the compression seat 332 to the outer edge of the screen 220. In above-mentioned rotary circular sieve 10, the finished product that falls on first bottom plate 212 pushes in first opening and falls into out feed cylinder 213 through first scraper blade 510 that hugs closely with first bottom plate 212, realizes that the above-mentioned rotary circular sieve 10 of finished product derivation, and the motion of first scraper blade 510 on first bottom plate 212 can prevent that the material from piling up on the bottom plate, avoids the emergence of putty condition, realizes the efficiency and the output of screening, avoids the loss of material.

In order to further improve the anti-blocking effect, specifically, the plurality of first scraping plates 510 are uniformly distributed along the circumferential direction of the pressing seat 332, so that the finished products on the first bottom plate 212 can be pushed, and then can be pushed into the first opening, and the pushing effect of the first scraping plates 510 is better. In a specific setting, the arrangement mode of the plurality of first scrapers 510 is not limited to the uniform distribution, and other modes capable of meeting the requirement may be adopted.

In order to avoid damaging the first bottom plate 212, as shown in fig. 6, 7 and 8, specifically, a side of the first scraper 510 close to the first bottom plate 212 is provided with an adhesive strip 511, so that the first scraper 510 and the first bottom plate 212 are in flexible contact to avoid damaging the first bottom plate 212, of course, the adhesive strip 511 may also be replaced by other flexible materials, for example, a side of the first scraper 510 close to the first bottom plate 212 is provided with a strip-shaped structure made of plastic, nylon, or the like.

In order to further improve the anti-blocking effect, as shown in fig. 6, 7 and 8, specifically, the material guiding device 500 further includes a plurality of material guiding plates 520, and the material guiding plates 520 are installed on the two first scraping plates 510 along a tangential direction with respect to the outer circumferential surface of the pressing base 332. In the above-mentioned rotary circular sieve 10, the first scraper blade 510 scrapes off the finished product on the first bottom plate 212, and the scraped finished product is guided into the first opening along the material guide plate 520 and falls into the discharging barrel 213, so as to realize that the finished product is guided out of the above-mentioned rotary circular sieve 10, and the movement of the first scraper blade 510 and the material guide plate 520 on the first bottom plate 212 can better prevent the material from being accumulated on the bottom plate, thereby further avoiding the occurrence of the material blockage situation. In a specific arrangement, each two adjacent first scraping plates 510 are provided with a material guiding plate 520, or the material guiding plate 520 is provided on a specific two adjacent first scraping plates 510, and the material guiding plates 520 are not provided on the other first scraping plates 510, however, the arrangement manner of the material guiding plates 520 is not limited thereto, and may be other manners capable of meeting the requirements.

More specifically, the discharging cylinder 213 is disposed between the two first scraping plates 510, and the discharging cylinder 213 is located in the revolving coverage area of the material guiding plate 520, so as to ensure that the finished products scraped by the first scraping plates 510 can timely and completely enter the discharging cylinder 213 along the material guiding plate 520, and ensure that all the finished products can be guided into the discharging cylinder 213.

In order to prevent the material from blocking the screen 220, as shown in fig. 9 and 10, in a preferred embodiment, the rotary circular screen 10 further includes a scraper device 600 and a mounting bracket 700, the mounting bracket 700 is mounted in the first casing 100, and the mounting bracket 700 is located above the screen 220, when specifically configured, the mounting bracket 700 may be fixed at the lower end of the top cover 150 by means of screw connection, welding, snap connection, and the like, the scraper device 600 includes a plurality of second scrapers 610, the plurality of second scrapers 610 are distributed along the circumferential direction of the first side wall 211, and the second scrapers 610 are detachably mounted below the mounting bracket 700, and the second scrapers 610 are tightly attached to the throwing screen 222. In the rotary circular sieve 10, when the screen 220 rotates, the second scraper 610 scrapes the material on the casting sieve 222, so that the material accumulated on the casting sieve 222 rotates with the screen 220 again and is discharged through the first discharge channel 400 or the second discharge channel, and the material is prevented from blocking the casting sieve 222, which affects the separation effect. And the second scraper 610 can be detached relative to the mounting frame 700, so that the mounting position of the second scraper 610 on the mounting frame 700 can be adjusted, and the materials on the screen 220 can be well scraped.

In order to facilitate the arrangement of the second scraper 610, as shown in fig. 9 and 10, the rotary circular screen 10 further includes a connecting device 800, the connecting device 800 includes a plurality of brackets 810 and a plurality of connecting rods 820, the number of the connecting rods 820 corresponds to the number of the brackets 810, the plurality of brackets 810 are mounted to the mounting frame 700, the connecting rods 820 are mounted to the mounting frame 700, and the connecting rods 820 are rotatable with respect to the mounting frame 700, the second scraper 610 is obliquely mounted to the connecting rods 820 in a vertical direction to achieve the mounting between the second scraper 610 and the mounting frame 700, and the positional relationship between the second scraper 610 and the mounting frame 700 can be adjusted by arranging the connecting device 800, so that the mounting between the second scraper 610 and the mounting frame 700 is facilitated, and the second scraper 610 is inclined at a certain angle with respect to the connecting rods 820 to prevent the second scraper 610 from being broken due to the concentration of stress.

In order to prevent the materials from being piled on the screen 220, as shown in fig. 2, 9 and 10, in a preferred embodiment, the rotary circular screen 10 further comprises a material homogenizing cover 900, wherein the lower end of the upper end and the lower end of the material homogenizing cover 900 is a first end 910, the upper end is a second end 920, the first end 910 covers the middle area of the screen 220, and the second end 920 protrudes towards the feed opening 110, when the materials fall on the material homogenizing cover 900, the materials flow onto the screen 220 along with the material homogenizing cover 900, and the materials are prevented from being piled on the screen 220. Specifically, a supporting rod 811 protrudes from one side of the supporting plate 810 away from the first side wall 211, and the homogenizing cover 900 is disposed on the supporting rod 811, so as to facilitate the disposition of the homogenizing cover 900. Specifically, the cross-sectional area of the second end 920 of the homogenizing cap 900 is gradually reduced in a direction away from the first end 910, so that the second end 920 protrudes with the area decreasing toward the feeding port 110, and the material can be well divided along the side wall of the second end 920. More specifically, the homogenizing cover 900 is a cone-shaped structure, so that the material can be better distributed after passing through the homogenizing cover 900, and the material can be prevented from gathering on the screen 220.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A rotary circular screen, comprising:

2. The rotary circular screen as claimed in claim 1, wherein the screen mesh comprises a flat screen located on the bottom plate and a throwing screen extending upwards and outwards along the outer edge of the flat screen, the driving device comprises at least one group of pressing components, the pressing components comprise pressing covers and pressing seats, and the pressing seats and the pressing covers are respectively arranged on the upper side and the lower side of the flat screen and clamp the flat screen through the connection of the pressing seats and the pressing covers.

3. The rotary circular screen as claimed in claim 2, wherein the material guiding means comprises a plurality of first scrapers mounted on the pressing base and abutting against the first bottom plate and extending toward the outer edge of the screen mesh.

4. The rotary circular screen of claim 3, wherein the plurality of first scrapers are evenly distributed along the circumferential direction of the pressing base.

5. The rotary round screen of claim 3 wherein the first scraper has a glue strip on a side thereof adjacent to the first bottom plate.

6. The rotary circular screen as claimed in claim 3, wherein the material guiding device further comprises a plurality of material guiding plates, and the material guiding plates are mounted on the two first scraping plates along a tangential direction with respect to the outer circumferential surface of the pressing base.

7. The rotary circular screen of claim 6, wherein the discharge barrel is disposed between the two first scrapers and within the rotary coverage area of the guide plate.

8. The rotary circular screen of claim 2, further comprising a scraping device and a mounting frame, wherein the mounting frame is erected in the first housing and located above the screen, the scraping device comprises a plurality of second scrapers, and the second scrapers are distributed along the circumferential direction of the first side wall and detachably mounted below the mounting frame and closely attached to the throwing screen.

9. The rotary round screen of claim 8, further comprising a connecting means, the connecting means comprising a plurality of pallets and a plurality of connecting rods, the plurality of pallets being mounted to the mounting bracket, the connecting rods being rotatably mounted to the mounting bracket, the second scrapers being mounted to the connecting rods at an angle in the vertical direction.

10. The rotary circular screen of claim 9, further comprising a material homogenizing cover, wherein a support rod protrudes from one side of the support plate away from the first side wall, the material homogenizing cover is arranged on the support rod, a first end of the material homogenizing cover is covered on the middle area of the screen mesh, and a second end of the material homogenizing cover protrudes towards the feed inlet.