阅读说明：本技术 一种环保用垃圾场垃圾分离滚筒筛装置 (Environment-friendly garbage separation drum screen device for garbage yard ) 是由 姜朋 于 2021-08-22 设计创作，主要内容包括：本发明提供了一种环保用垃圾场垃圾分离滚筒筛装置,包括带倾斜斗转动支撑架,带倾斜斗转动支撑架上转动连接有转动滚筒,转动滚筒的两端分别设有进料口和大料出料口,带倾斜斗转动支撑架上设有细料出口,其中,所述的转动滚筒上设有齿形长条筛孔,带倾斜斗转动支撑架上转动连接有带轴驱动清理齿轮,带轴驱动清理齿轮与齿形长条筛孔相啮合,带轴驱动清理齿轮设有配套驱动电机,在筛分的过程中完成对筛孔的清理,其能够在筛分的过程中完成对筛孔的清理。(The invention provides an environment-friendly garbage field garbage separation drum screen device which comprises a rotating support frame with an inclined hopper, wherein the rotating support frame with the inclined hopper is rotatably connected with a rotating drum, a feed inlet and a large material discharge outlet are respectively formed in two ends of the rotating drum, and a fine material outlet is formed in the rotating support frame with the inclined hopper.)

1. The utility model provides a garbage yard rubbish separation drum sieve device for environmental protection, includes that the area slope is fought and is rotated support frame (1), rotates on the area slope is fought and is connected with rotation cylinder (4) rotation support frame (1), and the both ends of rotating cylinder (4) are equipped with feed inlet (5) and aniseed discharge gate (8) respectively, are equipped with thin material export (7), its characterized in that on the area slope is fought and is rotated support frame (1): the rotary drum (4) is provided with a toothed long-strip sieve mesh (6), the rotary support frame (1) with the inclined bucket is connected with a belt shaft driving cleaning gear (2) in a rotating mode, the belt shaft driving cleaning gear (2) is meshed with the toothed long-strip sieve mesh (6), and the belt shaft driving cleaning gear (2) is provided with a matched driving motor.

2. The environmental protection garbage site garbage separation drum sieve device according to claim 1, further comprising: and the friction wheel (3) is connected to one side, close to the feed inlet (5), of the belt shaft driving cleaning gear (2), and the friction wheel (3) is in friction connection with the rotating roller (4).

3. The environmental protection garbage site garbage separation drum sieve device according to claim 2, further comprising: the feeding support box (9) is arranged on one side close to the feeding port (5), the two sides of the feeding support box (9) are symmetrically provided with an air inlet channel (13) and an air outlet channel (15), and the air inlet channel (13) and the air outlet channel (15) are communicated with the interior of the feeding support box (9); a first intake check valve (10) disposed in the intake passage (13); the feeding device comprises a feeding hopper (12), wherein a piston (14) is further arranged at the lower end of the feeding hopper (12), the feeding hopper (12) and the piston (14) are both in sliding connection with a feeding supporting box (9), and the piston (14) is arranged inside the feeding supporting box (9); the vibration spring (11) is sleeved on the feeding hopper (12); and the first air outlet one-way valve (16) is arranged in the air outlet channel (15).

4. The environmental protection garbage site garbage separation drum sieve device according to claim 3, further comprising: a dust collecting hopper (17) arranged right above the tooth-shaped long sieve pores (6); a cam (18) which is rotationally connected above the dust hopper (17); the rotating end of the cam motor (19) is connected to the cam (18); a first movable seat (20) which is in contact with the cam (18); a cleaning hole (21); a buzzer plug (22); a cross-shaped limiting pin (23) is screwed; the second movable seat (24) with the piston is provided, the cleaning hole (21) is arranged on the second movable seat (24) with the piston, and the buzzer plug (22) is connected on the second movable seat (24) with the piston; the return spring (25) is sleeved on the second movable seat (24) with the piston; the air pressure change box (26) is arranged above the dust collecting hopper (17), the second movable seat (24) with the piston is connected with the air pressure change box (26) in a sliding way, and two ends of the reset spring (25) are respectively connected to the air pressure change box (26) and the second movable seat (24) with the piston; the air inlet pipe (27) is arranged below the air pressure change box (26), and the air inlet pipe (27) is communicated with the dust hopper (17); the air outlet pipe (28) is connected above the air pressure change box (26); a handle filter plate (29) with a buckle, which is connected on the dust hopper (17) in a sliding way; the decompression plug (30) is connected to one end, far away from the cam (18), of the first movable seat (20); the first embedded groove (31) is arranged on the second movable seat (24) with the piston, the first embedded groove (31) is communicated with the cleaning hole (21), and the first movable seat (20) and the decompression plug (30) are in sliding connection with the first embedded groove (31); the pin matching threaded hole (32), the buzzer plug (22) and the first movable seat (20) are both provided with the pin matching threaded hole (32), and the cross-shaped limiting pin (23) is screwed to be connected in the pin matching threaded hole (32); a second intake check valve (33) provided in the intake pipe (27); the second air outlet one-way valve (34) is arranged in the air outlet pipe (28); the second embedded groove (44) is arranged on the first movable seat (20) and corresponds to the buzzer plug (22), and a socket matched with the buzzer plug (22) is arranged in the second embedded groove (44); and the buzzer (45) is arranged on the first movable seat (20).

5. The environmental protection garbage site garbage separation drum sieve device according to claim 4, further comprising: the impeller (39) with the shaft is rotatably connected to the lower end of the air outlet pipe (28); the belt pulley (35) is connected to the belt shaft impeller (39) and is provided with a driving part for driving the belt pulley (35) to rotate; the light material collecting hopper (36) is arranged below the air outlet pipe (28), and the impeller (39) with the shaft is rotationally connected with the light material collecting hopper (36); one end of the overflow air pipe (37) is communicated with the light material collecting hopper (36); the light material discharge channel (38) is communicated with the light material collecting hopper (36), and the other end of the overflow air pipe (37) is communicated with the light material collecting hopper (36); the air injection channels (40) are arranged on the shaft-bearing impeller (39), the horizontal outlets of the air injection channels (40) are arranged in the middle between every two blades of the shaft-bearing impeller (39), and the upper ends of the air injection channels (40) are communicated with the air outlet pipe (28); the rotating disc (41) with the opening is connected to the impeller (39) with the shaft, the rotating disc (41) with the opening is rotatably connected into the light material collecting hopper (36), the screw shaft (42) is rotatably connected into the light material collecting hopper (36), and a driving motor is arranged to drive the screw shaft (42) to rotate; and the light substance inlet (43) is arranged below the light substance collecting hopper (36), and the light substance inlet (43) is positioned above the large material outlet (8).

6. The environmental protection garbage separation drum screen device for the garbage site according to claim 4 or 5, wherein: when the second movable seat (24) with the piston cannot move and the cross-shaped limiting pin (23) is screwed, the first movable seat (20) can move towards the second movable seat (24) with the piston, the buzzer plug (22) can be inserted into the second embedded groove (44) and is connected with the socket matched with the buzzer plug (22), and the buzzer (45) is powered on and makes a sound.

7. The environmental protection garbage separation drum sieve device for the garbage site according to claim 5, characterized in that: and the second air outlet one-way valve (34) is opened once every half cycle of rotation of the impeller (39) with the shaft for air exhaust.

8. The environmental protection refuse dump garbage separation drum sieve device according to any one of claims 1 to 5, wherein: the friction wheel (3) is made of rubber.

9. The environmental protection refuse dump garbage separation drum sieve device according to any one of claims 1 to 5, wherein: the material of the rotary drum (4) is high manganese steel.

10. The environmental protection refuse dump garbage separation drum sieve device according to any one of claims 1 to 5, wherein: the rotary roller (4) is installed at an inclination angle of 17 degrees when being installed.

Technical Field

The invention relates to a rotary screen device, in particular to an environment-friendly garbage site garbage separation rotary screen device.

Background

In the use of drum sieve, what very easily takes place during the jam of sieve mesh especially in the refuse classification of refuse dump handles, during the first section feed, when a large amount of mixtures directly fall into drum sieve, jam the front end sieve mesh easily, and do not have better processing mode at present, clear up through the mode of shutting down mostly, waste time and energy, influence normal activity duration easily, reduce efficiency has increased the human cost, so a refuse dump garbage separation drum sieve device for environmental protection has been invented.

Disclosure of Invention

The invention aims to provide an environment-friendly garbage yard garbage separation drum screen device which can clean screen holes in the screening process.

In order to solve the technical problem, the invention provides an environment-friendly garbage field garbage separation drum screen device which comprises a rotating support frame with an inclined hopper, wherein the rotating support frame with the inclined hopper is rotatably connected with a rotating drum, two ends of the rotating drum are respectively provided with a feeding hole and a large material discharging hole, the rotating support frame with the inclined hopper is provided with a fine material outlet, the rotating drum is provided with a toothed long strip screen hole, the rotating support frame with the inclined hopper is rotatably connected with a belt shaft driving cleaning gear, the belt shaft driving cleaning gear is meshed with the toothed long strip screen hole, the belt shaft driving cleaning gear is provided with a matched driving motor, and cleaning of the screen hole is completed in the screening process.

Further, refuse separation drum sieve device for refuse dump for environmental protection still includes: the friction wheel is connected to one side of being close to the feed inlet on the belt shaft drive clearance gear, and friction wheel and rotation cylinder frictional connection can not cause too big rigidity collision and wearing and tearing to the drive unit.

Further, refuse separation drum sieve device for refuse dump for environmental protection still includes: the feeding support box is arranged at one side close to the feeding port, the two sides of the feeding support box are symmetrically provided with an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are communicated with the interior of the feeding support box; the first air inlet one-way valve is arranged in the air inlet channel; the piston is arranged at the lower end of the feeding hopper, the feeding hopper and the piston are both connected with the feeding supporting box in a sliding manner, and the piston is arranged inside the feeding supporting box; the vibration spring is sleeved on the feeding hopper; the first air outlet one-way valve is arranged in the air outlet channel, so that the feeding can be realized, and meanwhile, the drainage of materials is completed.

Further, refuse separation drum sieve device for refuse dump for environmental protection still includes: the dust collecting hopper is arranged right above the tooth-shaped long-strip sieve pores; the cam is rotationally connected above the dust hopper; the rotating end of the cam motor is connected to the cam; the first movable seat is in contact with the cam; cleaning the holes; a buzzer plug; the cross-shaped limiting pin is screwed; the cleaning hole is formed in the second movable seat with the piston, and the buzzer plug is connected to the second movable seat with the piston; the return spring is sleeved on the second movable seat with the piston; the air pressure change box is arranged above the dust collecting hopper, the second movable seat with the piston is connected with the air pressure change box in a sliding manner, and two ends of the reset spring are respectively connected to the air pressure change box and the second movable seat with the piston; the air inlet pipe is arranged below the air pressure change box and communicated with the dust collecting hopper; the air outlet pipe is connected above the air pressure change box; the filtering plate with the buckle handle is connected to the dust collecting hopper in a sliding way; the decompression plug is connected to one end, far away from the cam, of the first movable seat; the first embedded groove is arranged on the second movable seat with the piston, the first embedded groove is communicated with the cleaning hole, and the first movable seat and the decompression plug are both in sliding connection with the first embedded groove; the pin is matched with the threaded hole, the buzzer plug and the first movable seat are both provided with pin matching threaded holes, and the cross-shaped limiting pin is screwed to be connected in the pin matching threaded hole; the second air inlet one-way valve is arranged in the air inlet pipe; the second air outlet one-way valve is arranged in the air outlet pipe; the second embedded groove is arranged on the first movable seat and corresponds to the buzzer plug in position, and a socket matched with the buzzer plug is arranged in the second embedded groove; the buzzer is arranged on the first movable seat, the dust raising problem in the operation process of the drum screen is solved, and meanwhile, the rigid damage caused by blockage can be prevented.

Further, refuse separation drum sieve device for refuse dump for environmental protection still includes: the impeller with the shaft is rotatably connected to the lower end of the air outlet pipe; the belt pulley is connected to the belt shaft impeller and is provided with a driving part for driving the belt pulley to rotate; the light material collecting hopper is arranged below the air outlet pipe, and the impeller with the shaft is rotationally connected with the light material collecting hopper; one end of the overflow air pipe is communicated with the light material collecting hopper; the light material discharge channel is communicated with the light material collecting hopper, and the other end of the overflow air pipe is communicated with the light material collecting hopper; the air injection channels are arranged on the impeller with the shaft, the horizontal outlet of the air injection channel is arranged in the middle between every two blades of the impeller with the shaft, and the upper end of the air injection channel is communicated with the air outlet pipe; the rotating disc with the opening is connected to the impeller with the shaft, the rotating disc with the opening is rotatably connected into the light material collecting hopper, the screw shaft is rotatably connected into the light material collecting hopper, and a driving motor is arranged to drive the screw shaft to rotate; and the light material inlet is arranged below the light material collecting hopper and positioned above the large material discharge port to complete the collection and drainage of the light materials.

Further, when taking piston second sliding seat unable removal, when taking to twist the cross flower spacer pin and can breaking, first sliding seat can be to taking piston second sliding seat motion, and the buzzer plug can insert in the second embedded groove and with buzzer plug matched with socket switch-on, buzzer power switch-on and sound, report to the police during the jam.

Furthermore, every time the impeller with the shaft rotates for half a circle, the second air outlet one-way valve is opened for exhausting air, so that the light materials can be conveniently drained.

Further, the material of the friction wheel is rubber.

Further, the material of the rotary drum is high manganese steel.

Further, the rotating drum is installed while maintaining an inclination angle of 17 degrees at the time of installation.

To sum up, adopt above-mentioned device, can accomplish the clearance to the sieve mesh at the in-process of screening, can not cause too big rigidity collision and wearing and tearing to the drive unit, accomplish the drainage to the material when can realizing the feed, solved the raise dust problem of drum sieve operation in-process, rigidity damage when simultaneously can preventing to block up the emergence and report to the police when blockking up, the completion is collected the drainage to light material.

Drawings

Fig. 1 is a schematic view of a first overall structure of an environmental-friendly garbage separation drum screen device in a garbage yard.

Fig. 2 is a partially enlarged structural schematic view of a portion a of fig. 1 of the environmental protection garbage disposal separation drum screen device according to the present invention.

Fig. 3 is a partially enlarged sectional structural view of a portion B of fig. 1 of the environmental protection garbage separation drum screen device of the garbage site according to the present invention.

Fig. 4 is a schematic view of a second overall structure of the garbage separation drum screen device for an environmental protection garbage site according to the present invention.

Fig. 5 is a first schematic sectional view of the environmental protection garbage separation drum screen device.

Fig. 6 is a partially enlarged structural schematic view of a portion C of fig. 5 of the environmental protection garbage separation trommel device of the garbage site according to the present invention.

Fig. 7 is a partially enlarged structural schematic view of a portion D of fig. 5 of the environmental protection garbage disposal separation drum screen apparatus according to the present invention.

Fig. 8 is a second schematic sectional view of the environmental protection garbage separation drum screen device.

Fig. 9 is a third schematic sectional view of the environmental protection garbage separation drum screen device.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in the attached drawings, the embodiment of the invention provides an environment-friendly garbage field garbage separation drum sieve device, which comprises a rotating support frame 1 with a tilting hopper, wherein the rotating support frame 1 with the tilting hopper is rotatably connected with a rotating drum 4, two ends of the rotating drum 4 are respectively provided with a feed inlet 5 and a large material discharge outlet 8, the rotating support frame 1 with the tilting hopper is provided with a fine material outlet 7, the rotating drum 4 is provided with a toothed strip sieve pore 6, the rotating support frame 1 with the tilting hopper is rotatably connected with a belt shaft driving cleaning gear 2, the belt shaft driving cleaning gear 2 is meshed with the toothed strip sieve pore 6, the belt shaft driving cleaning gear 2 is provided with a matched driving motor, the matched motor of the belt shaft driving cleaning gear 2 can drive the belt shaft driving cleaning gear 2 to rotate, the belt shaft driving cleaning gear 2 can drive the rotating drum 4 to rotate through meshing with the toothed strip sieve pore 6, rotate cylinder 4 and rotate and to carry out the rotation screening to the rubbish of adding from feed inlet 5, little material can be along the rectangular sieve mesh 6 downstream of profile of tooth then discharge from thin material export 7, big material can discharge from big material discharge gate 8, the in-process of the rectangular sieve mesh 6 meshing of band shaft drive clearance gear 2 and profile of tooth, can directly extrude some thin materials of jam in the rectangular sieve mesh 6 of profile of tooth, can play like this and prevent to block up, and will be extruded out after the jam takes place, so can not form big extrusion force, prevent that band shaft drive clearance gear 2 from receiving excessive wearing and tearing.

In this embodiment, the garbage separation drum sieve device for environmental protection garbage site further includes: friction wheel 3, connect the one side that is close to feed inlet 5 on band spool drive clearance gear 2, friction wheel 3 with rotate 4 frictional connection of cylinder, friction wheel 3 can play the effect of rotation helping hand with the synchronous rotation of band spool drive clearance gear 2, prevent simultaneously that band spool drive clearance gear 2 from bearing too big moment at driven in-process, prevent that the extruded in-process of meshing in-process from taking place the card section, guarantee power transmission's continuity.

In this embodiment, the garbage separation drum sieve device for environmental protection garbage site further includes: the feeding supporting box 9 is arranged on one side close to the feeding port 5, the two sides of the feeding supporting box 9 are symmetrically provided with an air inlet channel 13 and an air outlet channel 15, and the air inlet channel 13 and the air outlet channel 15 are both communicated with the interior of the feeding supporting box 9; a first intake check valve 10 provided in the intake passage 13; a feeding hopper 12, a piston 14 is further arranged at the lower end of the feeding hopper 12, the feeding hopper 12 and the piston 14 are both connected with a feeding supporting box 9 in a sliding manner, and the piston 14 is arranged inside the feeding supporting box 9; the vibration spring 11 is sleeved on the feeding hopper 12; a first air outlet one-way valve 16 arranged in the air outlet channel 15 for discharging the materials, wherein the materials are discharged on the feeding hopper 12, the feeding hopper 12 can be pressed downwards to compress the vibration spring 11 and then rebound under the elastic force of the vibration spring 11, so that the materials can be fed in a self-weight vibration mode, meanwhile, in the process that the feeding hopper 12 vibrates up and down in a reciprocating mode, the piston 14 can be driven to reciprocate up and down, the piston 14 can repeatedly cause the pressure difference change inside the feeding support box 9, so that the external air is continuously sucked into the feeding support box 9 from the first air inlet one-way valve 10 and then is sprayed out from the first air outlet one-way valve 16 after being pressurized, the spraying direction is just the garbage movement direction, thereby playing a role in assisting the movement and providing a transverse air blast, so that the light materials in the movement can be moved towards the discharging direction, and the heavy materials, the light materials and the small materials can be separated, And (5) grading.

In this embodiment, the garbage separation drum sieve device for environmental protection garbage site further includes: a dust hopper 17 arranged right above the tooth-shaped long sieve pores 6; a cam 18 which is rotatably connected above the dust hopper 17; the rotating end of the cam motor 19 is connected to the cam 18; a first movable seat 20 in contact with the cam 18; cleaning holes 21; a buzzer plug 22; the cross-shaped limiting pin 23 is screwed; the second movable seat 24 with the piston, the cleaning hole 21 is arranged on the second movable seat 24 with the piston, and the buzzer plug 22 is connected on the second movable seat 24 with the piston; the return spring 25 is sleeved on the second movable seat 24 with the piston; the air pressure change box 26 is arranged above the dust collecting hopper 17, the second movable seat 24 with the piston is in sliding connection with the air pressure change box 26, and two ends of the return spring 25 are respectively connected to the air pressure change box 26 and the second movable seat 24 with the piston; an air inlet pipe 27 arranged below the air pressure change box 26, wherein the air inlet pipe 27 is communicated with the dust hopper 17; the air outlet pipe 28 is connected above the air pressure change box 26; a filtering plate 29 with buckle, which is connected to the dust hopper 17 in a sliding way; a decompression plug 30 connected to one end of the first movable seat 20 far from the cam 18; the first embedded groove 31 is arranged on the second movable seat 24 with the piston, the first embedded groove 31 is communicated with the cleaning hole 21, and the first movable seat 20 and the decompression plug 30 are both in sliding connection with the first embedded groove 31; the pin matching threaded hole 32 is formed, the buzzer plug 22 and the first movable seat 20 are both provided with the pin matching threaded hole 32, and the cross flower limiting pin 23 is screwed and connected in the pin matching threaded hole 32; a second intake check valve 33 provided in the intake pipe 27; a second outlet check valve 34 disposed in the outlet pipe 28; the second embedded groove 44 is arranged on the first movable seat 20 and corresponds to the buzzer plug 22 in position, and a socket matched with the buzzer plug 22 is arranged in the second embedded groove 44; a buzzer 45 arranged on the first movable seat 20, the cam motor 19 can drive the cam 18 to rotate when operating, the cam 18 can drive the first movable seat 20 to do reciprocating linear motion by matching with the reset spring 25, the first movable seat 20 can drive the second movable seat 24 with the piston to do reciprocating motion, the second movable seat 24 with the piston can cause the pressure change in the air pressure change box 26, thereby continuously sucking the air below the dust hopper 17 upwards through the filtering of the belt buckle filter plate 29 and then discharging the air from the second air inlet one-way valve 33, the instantaneous change of the pressure can help the dust and the like to be separated from the rotating roller 4, thereby achieving good dust collecting effect, simultaneously helping the light substances to be improved and separated from the heavy substances, matching with the rotating and screening effect of the rotating roller 4, when the second air inlet one-way valve 33, When the second outlet check valve 34 fails to perform a pressure change in the air pressure change tank 26, the cross-shaped limiting pin 23 is twisted to generate protective fracture, so that the cam 18 drives the first movable seat 20 to move when rotating, because the cross-shaped limiting pin 23 is broken by screwing, the second movable seat 24 with the piston is in a blocked state, at the moment, the first movable seat 20 can drive the decompression plug 30 to move towards the air pressure change box 26, the buzzer plug 22 is inserted into the second embedded groove 44 and is communicated with the socket matched with the buzzer plug 22, the power supply of the buzzer 45 is communicated and sounds, and the working personnel is reminded of the fault condition at the moment, the loss in the process is only one limiting pin 23 with the cross flowers screwed, and the cleaning hole 21 can be cleaned by introducing a cleaning agent into the air pressure change box 26 or maintained by introducing a lubricating agent after maintenance by replacing a new limiting pin 23 with the cross flowers screwed.

In this embodiment, the garbage separation drum sieve device for environmental protection garbage site further includes: the impeller 39 with a shaft is rotatably connected to the lower end of the air outlet pipe 28; the belt pulley 35 is connected to the belt shaft impeller 39 and is provided with a driving part for driving the belt pulley 35 to rotate; a light material collecting hopper 36 arranged below the air outlet pipe 28, and an impeller 39 with a shaft is rotatably connected with the light material collecting hopper 36; one end of the overflow air pipe 37 is communicated with the light material collecting hopper 36; the light material discharge channel 38 is communicated with the light material collecting hopper 36, and the other end of the overflow air pipe 37 is communicated with the light material collecting hopper 36; the air injection channels 40 are arranged on the impeller 39 with the shaft, the middle position between every two blades of the impeller 39 with the shaft is provided with a horizontal outlet of the air injection channel 40, and the upper ends of the air injection channels 40 are communicated with the air outlet pipe 28; the rotating disc 41 with the opening is connected to the impeller 39 with the shaft, the rotating disc 41 with the opening is rotatably connected in the light material collecting hopper 36, the screw shaft 42 is rotatably connected in the light material collecting hopper 36, and a driving motor is arranged to drive the screw shaft 42 to rotate; a light material inlet 43 arranged below the light material collecting hopper 36, the light material inlet 43 is arranged above the large material outlet 8, a belt pulley 35 is driven to rotate by the operation of a motor matched with the belt pulley 35, a belt shaft impeller 39 is driven to rotate by the rotation of the belt pulley 35, upward gas flow is formed by the rotation of the belt shaft impeller 39, so that negative pressure is formed at the light material inlet 43, upward attraction is formed on the light material at the large material outlet 8, the heavy material and the light material are completely separated, the light material can be well introduced into the light material collecting hopper 36 by matching with the transverse gas sprayed by the first gas outlet one-way valve 16, then the light material respectively enters between two adjacent blades of the belt shaft impeller 39, and the second gas outlet one-way valve 34 is opened once every half cycle of the rotation of the belt shaft impeller 39, so that instantaneous high-pressure gas can be sprayed from a transverse pipe orifice between the two blades, the garbage in the light material collecting hopper 36 where the screw shaft 42 is located is instantaneously pushed to the screw shaft 42, the operation of a motor matched with the screw shaft 42 drives the screw shaft 42 to rotate, the light material garbage is pushed to the light material discharging channel 38, and the upward airflow formed by the impeller 39 with the shaft is filtered by the rotating disc 41 with the opening and then is vertically blown downwards into the light material discharging channel 38 through the reversing of the overflow air pipe 37, so that the light materials can be helped to smoothly move downwards in the light material discharging channel 38, and the effect of smooth discharging is achieved.

In this embodiment, the friction wheel 3 is made of rubber, and plays a role of a rotation assisting force.

In this embodiment, the material of the rotating drum 4 is high manganese steel, which plays a role in wear resistance.

In this embodiment, the rotating drum 4 is installed at an inclination angle of 17 degrees during installation, so that the garbage can advance during the screening process.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: can accomplish the clearance to the sieve mesh at the in-process of screening, can not cause too big rigidity collision and wearing and tearing to the drive unit, accomplish the drainage to the material when can realizing the feed, solve the raise dust problem of drum sieve operation in-process, rigidity when simultaneously can prevent to block up the emergence is damaged and is reported to the police when blockking up, accomplishes and collects the drainage to light material.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.