CN216860280U - Screening device - Google Patents

Abstract

The utility model relates to a screening device. The screening device comprises a feeding assembly for providing the granular materials; the first static eliminating part is used for eliminating static on the granular materials; the screening assembly is used for screening broken granular materials and complete granular materials; first receipts feed bin subassembly and second receipts feed bin subassembly. Through setting up first static elimination spare in the feed subassembly, eliminate the static between the granule material, solved the problem that can't separate easily because of static gathers each other in the automatic screening process, and then realize the thorough separation of granule material.

Description

Screening device

Technical Field

The utility model relates to the field of medical equipment, in particular to a screening device.

Background

The blood filter adopts macroporous adsorption resin, is a novel high molecular polymer adsorbent particle developed in 20 years, and is generally a spherical particle material. During the resin production process, part of the resin is broken into hemispherical or elliptical resin particle materials. Such damaged resin materials can have a significant impact on the hemocompatibility of the hemofilter, including the risk of clotting, particulate embolization, and the like. The broken hemispherical or oval resin mass cannot be separated by conventional sieving because its diameter is the same as the normal adsorbent.

At present usually through artifical selection mode, nevertheless it is huge to consume the manpower, and the screening process can cause the pollution of adsorbent granule simultaneously, also has the scheme to realize carrying out automated screening to the adsorption resin material simultaneously, but screening and separation are not thorough.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a screening apparatus, which can eliminate static electricity between particle materials, solve the problem that the particle materials cannot be easily separated due to mutual aggregation caused by static electricity in an automatic screening process, and further achieve complete separation of the particle materials.

A screening device for screening particulate material, the screening device comprising a frame; the feeding assembly is arranged on the rack and used for providing the granular materials; the first static eliminating part is arranged at the discharge port of the feeding assembly and is used for eliminating static on the granular materials; the screening assembly is arranged on the rack and comprises a first driving part and a conveyor belt, the driving part drives the conveyor belt to rotate, the conveyor belt is provided with a first rotating end, a first side and a second side, the first side and the second side are positioned on two sides of the first rotating end, the height of the first side is higher than that of the second side, and a discharge port of the feeding assembly is arranged corresponding to the first side of the conveyor belt; for convenience of description, the present embodiment defines one end where the rotating motor is located as a first rotating end, and the other end as a second rotating end.

So set up, through setting up first static elimination spare in the feed subassembly to make the static between the particulate matter that can eliminate the discharge gate output of feed subassembly, and then do not take place the gathering because there is not the adsorption of static between the particulate matter. The particle materials of static elimination enter into the screening subassembly, and through the screening of screening subassembly, complete particle materials and damaged particle materials leave the screening subassembly by the second side direction and the first rotation end direction of screening subassembly respectively, and then have realized the thorough separation of complete particle materials and damaged particle materials.

In one embodiment of the utility model, the screening apparatus further comprises a first receiving bin assembly disposed in correspondence with a second side of the conveyor belt for collecting particulate material moving from the first end to the second side of the conveyor belt; and the second material receiving bin assembly is arranged at the first rotating end of the conveyor belt and used for collecting the granular materials on the conveyor belt.

So set up, through setting up first feeding storehouse subassembly so that complete granule material is accomodate to this screening plant to through setting up second golden material storehouse subassembly so that accomodate damaged granule material, and then realized the separation of complete granule material and damaged granule material.

In one embodiment of the utility model, the screening device further comprises an angle adjusting assembly connected to the conveyor belt for adjusting the inclination angle of the conveyor belt relative to the horizontal plane.

So set up, through setting up angle adjusting part for can adjust the first side height of conveyer belt according to different granule material specifications and motor speed, and then can the hoisting device production flexibility.

In one embodiment of the present invention, the angle adjusting assembly includes an angle adjusting rod, and the angle adjusting rod abuts against the conveyor belt; or the angle adjusting assembly comprises a second driving piece and a driving rod, one end of the driving rod is connected to the conveyor belt, and the other end of the driving rod is connected to the second driving piece.

So set up, through angle adjusting rod to make can be according to the needs of actual production, the angle of the first side of adjustment conveyer belt and horizontal included angle.

In an embodiment of the utility model, the second material receiving bin assembly includes a second material receiving bin and a material removing member, the material removing member is disposed at the first rotating end and used for removing damaged materials on the conveyor belt, and the second material receiving channel is located below the first rotating end and used for accommodating the damaged materials.

So set up, through receiving the feed bin with the second and setting up in the below of first rotation end, be favorable to collecting and storing the material, remove the material piece through setting up at first rotation end, the damaged material that the clearance removed on the material piece breaks away from in the conveyer belt to prevent damaged material adhesion to conveyer belt and can't collect in second and receive the feed bin.

In one embodiment of the present invention, the material removing member is a static eliminator and/or a scraper.

So set up, establish into static eliminator through removing the material piece to eliminate the static between damaged material and the conveyer belt, make damaged material break away from in the conveyer belt and fall into the second and receive the feed bin. And through will remove the material piece and set up to scraping the flitch, then can scrape off the damaged material that adheres to on the conveyer belt in order to break away from in the conveyer belt.

In an embodiment of the present invention, the second receiving bin assembly further includes a collecting bin located below the first rotating end and having a bin opening facing the first rotating end, and a second receiving channel having one end connected to the collecting bin and the other end connected to the second receiving bin.

So set up, through setting up the aggregate bin and with the bin mouth of aggregate bin towards first rotation end to by the aggregate bin collect when damaged granular material falls down by first rotation end, prevent unrestrained in the outside, receive the intercommunication of material passageway in order to realize aggregate bin and second and receive the feed bin through setting up the second, in order to collect damaged material in second and receive the feed bin.

In one embodiment of the utility model, the screening device further comprises a material removing assembly, the material removing assembly comprises a third static eliminating part, the conveyor belt further comprises a second transmission end, and the third static eliminating part is arranged above the second rotation end.

So set up, through set up the third static elimination piece in the second rotates the top of end, further eliminate the static of conveyer belt, prepare for next duty cycle process.

In one embodiment of the utility model, the material removing assembly further comprises a brush, the conveyor belt is provided with a second rotating end, the brush is arranged on the rack close to the conveyor belt, and the brush is positioned above the second rotating end.

So set up, through with the brush set up in the frame is close to the conveyer belt, just the brush is located the second rotates the top of end, helps sweeping the damaged material into second receiving bin and further ensures to go the material effect.

In one embodiment of the present invention, the first receiving bin assembly includes a first receiving channel and a first receiving bin, the first receiving channel is communicated with the first receiving bin, and the first receiving channel is located below the second side of the conveyor belt.

So set up, set up in the below of conveyer belt second side through receiving the material passageway and first receipts material storehouse, be favorable to collecting and storing the material.

In one embodiment of the utility model, the conveyor belt is a stainless steel belt.

So set up, through setting up stainless steel band to the daily cleanness and the maintenance of conveyer belt are convenient for.

In one embodiment of the utility model, the feed assembly comprises a vibratory pan having a discharge opening corresponding to the first side of the conveyor belt.

So set up, through being provided with the vibration dish with the feed subassembly, so that the feed subassembly has realized automatic feed.

Drawings

Fig. 1 is a schematic structural diagram of a screening apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 4 is a schematic structural view of fig. 1 from another view angle.

Reference numerals: 10. a supply assembly; 11. a vibrating pan; 111. a feed inlet; 112. a discharge port; 12. a pipeline; 20. a first static eliminating member; 30. a screen assembly; 31. a first driving member; 32. a conveyor belt; 321. A first side; 322. a second side; 323. a first rotating end; 324. a second rotating end; 33. butting a feed inlet; 40. an angle adjustment assembly; 41. an angle adjusting rod; 50. a first receiving bin assembly; 51. a first material receiving channel; 52. a first receiving bin; 60. a second receiving bin assembly; 61. a second material receiving channel; 62. a second receiving bin; 63. removing the material; 64. a material collecting bin; 70. a material removing component; 71. a third static eliminating member; 72. A brush member; 80. and a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

At present, to the screening of granule material among the prior art scheme, usually through artifical selection mode, nevertheless it is huge to consume the manpower, and the screening process can cause the pollution of granule simultaneously, also has the scheme to realize carrying out automatic screening to the adsorption resin material simultaneously, but screening and separation are not thorough.

Aiming at the technical problem, the utility model provides a screening device which is used for automatically screening granular materials. This sieving mechanism can eliminate the static between the granule material voluntarily to and the complete granule material of automatic screening and damaged granule material. The problem of in the automatic screening process because of static each other gathering can't separate easily is solved, and then realized the thorough separation of complete granule material and damaged granule material.

As shown in fig. 1 to 4, the present invention provides a screening apparatus for screening particulate materials. The screening device includes a frame 80, a feed assembly 10, a first static elimination element 20, a screen assembly 30, a first hopper assembly 50, and a second hopper assembly 60. The feeding assembly 10 is disposed on the frame 80 for providing the particulate materials, the first static eliminating component 20 is fixedly connected to the feeding assembly 10, and the gas injection port of the first static eliminating component 20 is communicated with the inside of the feeding assembly 10 and blows air to the discharge port 112 of the feeding assembly 10 to eliminate static electricity among the particulate materials. Discharge opening 112 of feed assembly 10 is provided with a conduit 12 communicating with screen assemblies 30 to allow particulate material to enter screen assemblies 30 for screening. After the particulate material is screened by the screen subassembly 30, the intact particulate material enters a first bin assembly 50 in communication with the screen assembly 30 and the broken particulate material enters a second bin assembly 60 in communication with the screen assembly 30.

The screening device is characterized in that the gas injection port of the first static eliminating part 20 is communicated with the interior of the feeding assembly 10, so that wind energy of the gas injection port blows to the inner space of the feeding assembly 10 and the discharge port 112, and static electricity between particle materials output by the interior of the feeding assembly 10 and the discharge port 112 can be eliminated. Thus, no agglomeration occurs between the particulate materials due to the absence of electrostatic adsorption. The electrostatic-eliminated particle materials enter the screening assembly 30, and through screening of the screening assembly 30, the complete particle materials and the damaged particle materials enter the first receiving bin 52 and the second receiving bin 62 respectively, so that complete separation of the complete particle materials and the damaged particle materials is achieved.

In the present embodiment, the feeding means of the feeding assembly 10 is a vibrating plate 11. Specifically, the top of the vibration plate 11 is provided with a feed inlet 111 in a rectangular funnel shape for placing the particle materials. A discharge port 112 is arranged on the side surface of the vibration disk 11 and used for discharging the particle materials from the vibration disk 11. The discharge port 112 of the vibration disk 11 is further provided with a pipe 12 for connecting the discharge port 112 of the vibration disk 11 with the screen assembly 30 so that the particulate material can be conveyed from the discharge port 112 of the vibration disk 11 to the screen assembly 30. It is understood that the feeding pattern of the feeding assembly 10 is not limited in this embodiment, and other feeding patterns may be used, as long as the automatic feeding of the particulate material to the screen assembly 30 can be achieved. Preferably, vibratory pan 11 is placed above frame 80 such that vibratory pan 11 and duct 12 at discharge outlet 112 are at a height relative to screen assemblies 30. It is also easier to transport the particulate material from the discharge opening 112 of the vibratory pan 11 to the screen assemblies 30 due to gravitational potential energy.

Further, the top of the vibration plate 11 is further provided with a first static eliminating part 20, which is substantially rectangular, and is vertically and fixedly connected to the vibration plate 11, and a gas injection port of the first static eliminating part 20 is communicated with the inside of the vibration plate 11, so that wind energy of the gas injection port blows to the inner space of the feeding assembly 10 and the discharge port 112, and static electricity between particulate materials output from the inside of the feeding assembly 10 and the discharge port 112 can be eliminated. Preferably, the first static eliminating part 20 is fixedly connected with the vibration plate 11 by using a bracket, so that the first static eliminating part 20 can be stably fixed to the vibration plate 11. The gas injection port of the first static eliminator 20 blows air toward the discharge port 112 in the vibratory pan 11 so that static electricity between the particulate materials in the vibratory pan 11 can be eliminated. Preferably, a static electricity eliminating part with a smaller gas injection port and a larger gas consumption is adopted, so that the wind speed in the vibration disc 11 is high, the gas inflow is large, and a better effect of eliminating static electricity among the particle materials is obtained.

As shown in fig. 2-4, screen assemblies 30 are arranged in the frame 80, and the screen assemblies 30 comprise a first driving member 31 and a conveyor belt 32, wherein the first driving member 31 is used for driving the conveyor belt 32 to rotate, and the rotating direction of the conveyor belt 32 is consistent with that of the driving member. The conveyor belt 32 is provided with a first rotating end 323, a first side 321 and a second side 322 which are positioned at two sides of the first rotating end 323, the first side 321 is higher than the second side 322 so that the complete particle materials can fall to the second side 322 of the conveyor belt 32 by gravity, and the discharge hole 112 of the feeding assembly 10 is arranged corresponding to the first side 321 of the conveyor belt 32. Preferably, the conveyor belt 32 is made of stainless steel, and a stainless steel belt is used as the conveyor belt 32, so that the conveyor belt 32 can be cleaned and maintained conveniently.

Specifically, screen assemblies 30 also include docking feed inlet 33. The butt feed inlet 33 is provided between the pipe 12 of the discharge port 112 of the vibration plate 11 and the conveyor belt 32, and connects the pipe 12 of the discharge port 112 of the vibration plate 11 and the conveyor belt 32. Since the outlet width of the butt feed port 33 is larger than the outlet width of the pipe 12. Therefore, through setting up butt joint feed inlet 33 to the distribution when making particulate material scatter to screening subassembly 30 is more even, changes in the static of eliminating between complete particulate material and damaged particulate material, and then promotes the separation effect of complete particulate material and damaged particulate material.

Preferably, the duct 12 of the outlet 112 of the vibratory pan 11 extends directly into the docking inlet 33, so as to simplify the connection of the vibratory pan 11 to the screen assemblies 30, reducing the structural complexity of the screening apparatus. In addition, screen assemblies 30 may be positioned at an appropriate height above frame 80 to facilitate adjustment of the angle of screen assemblies 30.

As shown in fig. 3, the screening apparatus further includes an angle adjustment assembly 40, the angle adjustment assembly 40 being connected to the conveyor belt 32 for adjusting the angle of inclination of the conveyor belt 32 with respect to the horizontal. Through setting up angle adjusting part 40 for can adjust the first side 321 height of conveyer belt 32 according to different granule material specifications and transmission efficiency, and then can the hoisting device production flexibility.

Specifically, the angle adjustment assembly 40 includes an angle adjustment rod 41, one end of the angle adjustment rod 41 is screwed to the frame 80, and the other end abuts against the first side 321 of the conveyor belt 32. The height of the first side 321 of the conveyor belt 32 is adjusted by adjusting the length of the angle adjustment rod 41 extending out of the frame 80 by screw threads. It will be appreciated that the power source of the angle adjustment assembly 40 is not limited in the present usage model. The adjusting component can select a driving cylinder as a power source, and a driving rod of the driving cylinder is connected to the conveyor belt 32; a drive member and a drive rod may be provided, one end of the drive rod being connected to the conveyor belt 32 and the other end being connected to the second drive member. As long as the adjustment of the height of the first side 321 of the conveyor belt 32 is achieved.

As shown in fig. 3 to 4, the present invention has two receiving bin assemblies, a first receiving bin assembly 50 and a second receiving bin assembly 60. The first receiving bin assembly 50 includes a first receiving channel 51 and a first receiving bin 52, the first receiving channel 51 is connected to the first receiving bin 52, and the first receiving channel 51 is located below the second side 322 of the conveyor belt 32. By providing the first receiving chute 51 and the first receiving bin 52 below the second side 322 of the conveyor belt 32, it is advantageous to collect and store the complete particulate material that falls by gravity from the first side 321 to the second side 322 of the conveyor belt. It should be understood that the shape of the first receiving channel 51 and the first receiving bin 52 is not limited by the present invention, and the present invention can realize the transportation and storage of the complete granular materials.

The second receiving bin assembly 60 comprises a second receiving channel 61 and a second receiving bin 62, the second receiving channel 61 is communicated with the second receiving bin 62, the second receiving channel 61 is located below the first rotating end 323, and the second receiving channel 61 and the second receiving bin 62 are arranged below the first rotating end 323, so that the second receiving channel 61 and the second receiving bin 62 are favorable for collecting damaged granular materials with friction and electrostatic adsorption between the second receiving channel 61 and the conveying belt 32. Optionally, the second hopper assembly 60 may also be provided with a brush 72 (not shown).

The second collecting bin assembly 60 further comprises a collecting bin 64, the collecting bin 64 is located below the first rotating end 323, a bin opening of the collecting bin 64 faces the first rotating end 323, one end of the second collecting channel 61 is communicated with the collecting bin 64, and the other end of the second collecting channel is communicated with the second collecting bin 62. Through setting up the aggregate bin 64 and with the bin mouth of aggregate bin 64 towards first rotation end 323 to be collected by aggregate bin 64 when damaged particulate material falls by first rotation end 323, prevent unrestrained in the outside, receive material passageway 61 through setting up the second and receive the intercommunication in order to realize aggregate bin 64 and second and receive feed bin 62, in order to collect damaged material in second and receive feed bin 62.

The brush 72 is disposed above the first rotating end 323 of the conveyor belt 32 to sweep the particulate material adsorbed on the conveyor belt 32 to the second receiving bin 62, and the brush 72 is disposed above the first rotating end 323 of the conveyor belt 32 to further improve the separation effect between the damaged particulate material and the conveyor belt 32. It should be understood that the present invention does not limit the shapes of the second receiving channel 61 and the second receiving bin 62, and can realize the transportation and storage of the damaged granular materials. In other embodiments of the present invention, the substrate may be,

in the present embodiment, the first rotating end 323 is a driving end, the second rotating end 324 is a driven end, and the first driving member 31 drives the first rotating end 323 to rotate so as to drive the conveyor belt 32, and further drive the second rotating end 324 to rotate. Thus, the rotation of the conveyor belt 32 will rotate in a counter-clockwise direction and cause the eventually tumbling of the broke material into the second receiving bin 62. It is understood that, in other embodiments, the first rotating end 323 can be set as a driven end, the second rotating end 324 can be set as a driving end, and the first driving member 31 should drive the second rotating end 324 to rotate, and the second rotating end 324 drives the conveyor belt 32 to rotate clockwise, and the second collecting bin 62 should be disposed below the second rotating end 324, so as to facilitate the collection of the damaged material. In another embodiment, the first rotating end 323 is configured as a driven end, the second rotating end 324 is configured as a driving end, and the first driving member 31 drives the second rotating end 324 to rotate so as to drive the conveyor belt 32, and thus the first rotating end 323 to rotate. Thus, the rotation of the conveyor belt 32 will rotate in a clockwise direction and cause the eventually falling of the damaged material into the second receiving bin 62. It is understood that the collection of the damaged material can be realized no matter the active end is arranged in front of or behind the conveyor belt 32, the arrangement position of the active end is not particularly limited by the present invention, as long as the damaged material is driven and collected in the second collecting bin 62.

Specifically, the second material receiving bin assembly 60 further comprises a material removing member 63, wherein the material removing member 63 is disposed at the first rotating end 323 and is used for removing the damaged material on the conveyor belt 32. By arranging the material removing member at the first rotating end 323, the damaged material on the conveyor belt 32 is cleaned to be separated from the conveyor belt 32, and the damaged material is prevented from being adhered to the conveyor belt 32 and being unable to be collected in the second material collecting bin 62.

It is understood that the material removing member 63 is a static eliminator and/or a scraper plate. In the present embodiment, the material removing member 63 is a static electricity eliminator, and is disposed above the first rotating end 323, and the air outlet is correspondingly disposed on the conveyor belt 32, so as to eliminate static electricity on the conveyor belt 32, and further eliminate static electricity between the damaged material and the conveyor belt 32, thereby preventing the damaged material from adhering to the conveyor belt.

In other embodiments, the material removing part 63 may be a scraping plate, the scraping plate is disposed below the first rotating end 323, the scraping plate is inclined toward the second material receiving bin 62, and a gap between the scraping plate and the conveyor belt 32 is smaller than a diameter of the damaged material, so that the conveyor belt 32 adhered with the damaged material is scraped by the scraping plate to be separated from the conveyor belt 32 when rotating to the scraping plate, and then the damaged material is collected in the second material receiving bin 62. It will be appreciated that in other embodiments, both electrostatic eliminators and scrapers may be used to clean the damaged material adhering to the exit conveyor.

Specifically, when the damaged particles roll down to the conveyor belt 32 from the discharge port 112 of the vibrating tray 11, the damaged particles stay on the conveyor belt 32 due to friction with the conveyor belt 32, and pass through the material removing member 63 along with the rotation of the conveyor belt 32, after the material removing member 63 eliminates static electricity attached between the particles and the stainless steel belt, the damaged particles fall into the second material receiving channel 61, and then fall into the second material receiving channel 62 via the second material receiving channel 61, the complete particles roll to the first material receiving channel 51, and then fall into the first material receiving channel 52 via the first material receiving channel 51.

As shown in fig. 2 to 4, in order to enhance the effect of removing the broken particulate materials, the present invention further includes a material removing assembly 70, wherein the material removing assembly 70 includes a third static eliminating member 71, and an air outlet of the third static eliminating member 71 corresponds to the conveyor belt 32 of the second rotating end 324. Preferably, two third static eliminating members 71 are provided to improve the efficiency of the third static eliminating members 71 in eliminating static electricity. By providing the stripping assembly 70, the belt 32 is further electrostatically destacked in preparation for the next cycle of belt 32 operation. Further, the material removing assembly 70 further comprises a brush 72, the brush 72 is disposed on the frame 80 near the conveyor belt 32, and the brush 72 is located above the second rotating end 324. It should be noted that the material removing assembly 70 may also be disposed above the second material receiving bin assembly 60 or the second rotating end 324, so as to further enhance the effect of removing the damaged material on the conveyor belt 32.

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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. A screening apparatus for screening particulate material, comprising:

a frame (80);

a feed assembly (10) disposed on the frame (80) for providing particulate material;

a first static eliminating member (20) arranged on the feeding assembly (10) and used for eliminating static on the particle materials;

screen assembly (30), set up in frame (80), screen assembly (30) are including first driving piece (31) and conveyer belt (32), first driving piece (31) drive conveyer belt (32) rotate, conveyer belt (32) are equipped with first rotation end (323) and are located first side (321) and second side (322) of first rotation end (323) both sides, first side (321) place highly is higher than second side (322) place height, discharge gate (112) of feed assembly (10) with conveyer belt (32) first side (321) correspond the setting.

2. A screening apparatus according to claim 1, characterized in that the screening apparatus further comprises a first receiving bin assembly (50) arranged in correspondence with a second side (322) of the conveyor belt (32) for collecting particulate material moving from the first side (321) to the second side (322) of the conveyor belt (32); and

a second hopper assembly (60), said second hopper assembly (60) being disposed at said first rotating end (323) of said conveyor belt (32) for collecting broken particulate material on said conveyor belt (32).

3. A screening apparatus according to claim 1, further comprising an angle adjustment assembly (40), the angle adjustment assembly (40) being connected to the conveyor belt (32) for adjusting the angle of inclination of the conveyor belt (32) relative to the horizontal.

4. A screening apparatus according to claim 3, wherein the angle adjustment assembly (40) comprises an angle adjustment lever (41), the angle adjustment lever (41) being held against the conveyor belt (32); or

The angle adjusting assembly (40) comprises a second driving motor driving part and a driving rod, one end of the driving rod is connected to the conveying belt (32), and the other end of the driving rod is connected to the second driving motor driving part.

5. A screening apparatus according to claim 2, wherein the second hopper assembly (60) comprises a second hopper (62) and a stripper (63), the stripper (63) being arranged at the first rotational end (323) for removing damaged material from the conveyor belt (32), the second hopper (62) being located below the first rotational end (323) for receiving damaged material.

6. A screening apparatus according to claim 5, wherein the material removing member (63) is a static eliminator and/or a scraper.

7. The screening apparatus according to claim 5, wherein the second collecting bin assembly (60) further comprises a collecting bin (64) and a second collecting channel (61), the collecting bin (64) is located below the first rotating end (323) and the bin mouth of the collecting bin (64) faces the first rotating end (323), and the second collecting channel (61) is communicated with the collecting bin (64) at one end and the second collecting bin (62) at the other end.

8. A screening apparatus according to claim 1, wherein the screening apparatus further comprises a stripping assembly (70), the stripping assembly (70) comprising a third static elimination member (71), the conveyor belt (32) further comprising a second rotation end (324), the third static elimination member (71) being arranged above the second rotation end (324).

9. The screening apparatus according to claim 8, wherein the stripping assembly (70) further includes a brush member (72), the brush member (72) being disposed on the frame (80) adjacent the conveyor belt (32), and the brush member (72) being positioned above the second rotational end (324).

10. A screening apparatus according to claim 2, wherein the first receiving bin assembly (50) comprises a first receiving channel (51) and a first receiving bin (52), the first receiving channel (51) being in communication with the first receiving bin (52), the first receiving channel (51) being located below the second side (322) of the conveyor belt (32).

11. A screening apparatus according to claim 1, wherein the conveyor belt (32) is a stainless steel belt.

12. A screening apparatus according to claim 1, wherein the feed assembly (10) comprises a vibrating tray (11), the discharge opening (112) of the vibrating tray (11) corresponding to the first side (321) of the conveyor belt (32).

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