Multi-stage drum screen

Abstract

The utility model provides a multistage drum screen, which belongs to the technical field of material screening, and comprises a box body, a feed port is arranged at the left end of the box body, a screening component is arranged in the box body, the screening component comprises a motor arranged on an inclined surface at the right end of the box body, a groove is arranged at the right end of the box body, and a first rotating rod is fixedly connected onto an output shaft of the motor. A driving gear is arranged in the middle of the first rotating rod, sliding grooves are formed in the left side and the right side of the interior of the box body correspondingly, a screen drum is slidably connected into the sliding grooves, the screen drum is obliquely arranged downwards from left to right, an inner toothed plate is arranged on the right side of the interior of the screen drum, and the driving gear is in meshed connection with the inner toothed plate; according to the multi-stage material screening device, not only can multi-stage screening of materials be achieved through rotation of the screening drum, but also the materials can be driven to be dispersed through the connecting plate, screening of the materials is facilitated, and the working efficiency of the multi-stage material screening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, in particular to a multi-stage drum screen. Background Art

[0002] The drum screen is a widely used machine in sorting technology. It controls the garbage sorting by the particle size. It has high sorting accuracy. The drum screen is generally divided into several sections, which can be determined according to the specific situation. The screen holes are arranged from small to large, and the screen holes on each section have the same aperture. In actual use, some existing multi-stage drum screens rely on the tilt setting of the screen drum and continuously rotate to perform multi-stage screening operations on the material. However, the material may remain on the bottom side of the screen plate, which is not conducive to the screening of the material and affects the working efficiency of the device. Utility Model Content

[0003] In view of this, the utility model provides a multi-stage drum screen, which can not only realize multi-stage screening of materials through the rotation of the screen drum, but also drive the material to be dispersed through the connecting plate, which is beneficial to the screening of materials and improves the working efficiency of the device.

[0004] In order to solve the above technical problems, the utility model provides a multi-stage drum screen, comprising a box body, a feed inlet is opened at the left end of the box body, and a screening assembly is arranged inside the box body;

[0005] The screening assembly includes a motor arranged on the inclined surface at the right end of the box body, a groove is provided at the right end of the box body, a first rotating rod is fixedly connected to the output shaft of the motor, a driving gear is provided at the middle part of the first rotating rod, slide grooves are provided on the left and right sides of the interior of the box body, a screen cylinder is slidably connected in the slide groove, the screen cylinder is arranged to be inclined downward from left to right, an internal tooth plate is provided on the right side of the interior of the screen cylinder, the driving gear is meshed and connected with the internal tooth plate, evenly distributed screen holes are provided on the surface of the screen cylinder, partitions are provided on the left and right sides of the interior of the screen cylinder, through grooves are provided on the surfaces of the partitions, a second rotating rod is rotatably connected in the groove, a driven gear is provided at the right end of the second rotating rod, the driving gear is meshed and connected with the driven gear, the left and middle sides of the second rotating rod The ends are all provided with evenly distributed connecting plates, which are all located on the left side of the partition. When screening materials, the staff can pour materials into the screen drum through the feed port, and then the staff can start the motor to make the first rotating rod drive the active gear to rotate, and under the action of the thread, drive the screen drum and the second rotating rod to realize opposite rotation movement. Under the inclination of the screen drum, the material moves to the right and falls downward through the screen hole. The rotation of the screen drum enhances the screening effect of the material. During the screening operation, part of the material may accumulate at the bottom left of the partition, and the second rotating rod drives the connecting plate to rotate. Since the connecting plate is in an arc shape, it can drive the material to rise and pass through the through slot for screening.

[0006] The diameter of the sieve holes at the left end of the sieve drum is smaller than the sieve holes in the middle of the sieve drum, and the diameter of the sieve holes in the middle of the sieve drum is smaller than the sieve holes at the right end of the sieve drum. The sieve holes at the right end of the sieve drum have the same diameter as the through slot. Due to the different sizes of the sieve holes, multi-stage screening of materials can be achieved.

[0007] Support plates are respectively arranged on the left and right sides of the interior of the box, and the screen drum is slidably connected to the support plates to ensure the support stability of the screen drum.

[0008] A first screening chamber is provided at the left end of the interior of the box body, a first discharge port is provided at the front end of the first screening chamber, a first solenoid valve is arranged on the surface of the first discharge port, a second screening chamber is provided between the two support plates, a second discharge port is provided at the front end of the second screening chamber, a second solenoid valve is arranged on the surface of the second discharge port, a third screening chamber is provided at the right end of the interior of the box body, a third discharge port is provided at the front end of the third screening chamber, a third solenoid valve is arranged on the surface of the third discharge port, smaller materials will fall into the first screening chamber, and the staff can open the first solenoid valve to discharge them, medium materials will fall into the second screening chamber, and the staff can open the second solenoid valve to discharge them, and larger materials will fall into the third screening chamber, and the staff can open the third solenoid valve to discharge them.

[0009] An inclined plate is arranged at the inner bottom end of the box body, and the inclined plate is arranged to be inclined upward from front to back. The inclined plate is arranged in coordination with the first discharge port, the second discharge port and the third discharge port, and the inclined plate facilitates the discharge of materials.

[0010] A dust box is provided at the rear end of the box body, a fan is provided inside the dust box, a slot connected to the dust box is opened at the rear end of the box body, and a box door is connected to the rear end of the dust box by a hinge. Dust will be generated during the screening operation. The staff can start the fan to draw the dust into the dust box, and the staff can open the box door to clean the dust.

[0011] Support legs are arranged at the four corners of the bottom end of the box body.

[0012] In summary, compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0013] 1. When the utility model is used, not only can the multi-stage screening of materials be realized through the rotation of the screen drum, but also the material can be driven to disperse through the connecting plate, which is beneficial to the screening of materials and improves the working efficiency of the device.

[0014] 2. When the utility model is used, the diameter of the sieve holes at the left end of the sieve drum is smaller than the sieve holes in the middle of the sieve drum, and the diameter of the sieve holes in the middle of the sieve drum is smaller than the sieve holes at the right end of the sieve drum. The sieve holes at the right end of the sieve drum are the same as the diameter of the through slot. Due to the different sizes of the sieve holes, multi-stage screening of materials can be achieved.

[0015] 3. When the utility model is used, support plates are respectively arranged on the left and right sides of the interior of the box body, and the screen drum is slidably connected to the support plates, thereby ensuring the support stability of the screen drum.

[0016] 4. When the utility model is used, a dust box is provided at the rear end of the box body, a fan is provided inside the dust box, a slot connected to the dust box is provided at the rear end of the box body, and a box door is connected to the rear end of the dust box through a hinge. Dust will be generated during the screening operation. The staff can start the fan to draw the dust into the dust box, and the staff can open the box door to clean the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic structural diagram of the internal cross-section of the groove of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the left side section of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the upper side of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure enlarged at point A of the utility model.

[0022] Explanation of the reference numerals: 100, casing; 200, feed port; 300, screening assembly; 301, motor; 302, groove; 303, first rotating rod; 304, driving gear; 305, screen cylinder; 306, inner tooth plate; 307, screen hole; 308, partition; 309, through groove; 310, second rotating rod; 311, driven gear; 312, connecting plate; 400, support plate; 501, first screening chamber; 502, first discharge port; 503, first solenoid valve; 601, second screening chamber; 602, second discharge port; 603, second solenoid valve; 701, third screening chamber; 702, third discharge port; 703, third solenoid valve; 800, inclined plate; 910, dust collecting box; 920, support leg. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-5 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0024] According to one embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown: This embodiment provides a multi-stage drum screen, including a box body 100, a feed inlet 200 is opened at the left end of the box body 100, and a screening assembly 300 is arranged inside the box body 100;

[0025] The screening assembly 300 includes a motor 301 arranged on the right end inclined surface of the box body 100, a groove 302 is provided at the right end of the box body 100, a first rotating rod 303 is fixedly connected to the output shaft of the motor 301, a driving gear 304 is provided in the middle of the first rotating rod 303, and a slide groove is provided on the left and right sides of the interior of the box body 100, a screen cylinder 305 is slidably connected in the slide groove, the screen cylinder 305 is inclined downward from left to right, an inner tooth plate 306 is provided on the right side of the interior of the screen cylinder 305, and the driving gear 304 is meshed with the inner tooth plate 306 The surface of the screen drum 305 is provided with evenly distributed screen holes 307, the inner left and right sides of the screen drum 305 are respectively provided with partitions 308, the surfaces of the partitions 308 are provided with through grooves 309, the groove 302 is rotatably connected with a second rotating rod 310, the right end of the second rotating rod 310 is provided with a driven gear 311, the driving gear 304 is meshed and connected with the driven gear 311, the left and middle ends of the second rotating rod 310 are provided with evenly distributed connecting plates 312, and the connecting plates 312 are all located on the left side of the partition 308. During the screening operation, the staff can pour the material into the screen drum 305 through the feed port 200, and then the staff can start the motor 301, so that the first rotating rod 303 drives the driving gear 304 to rotate, and under the action of the thread, the screen drum 305 and the second rotating rod 310 are driven to achieve opposite rotation. Under the inclination of the screen drum 305, the material moves to the right and falls downward through the screen hole 307. The rotation of the screen drum 305 enhances the screening effect of the material, and during the screening operation, part of the material may be accumulated. At the bottom left side of the partition 308, the second rotating rod 310 drives the connecting plate 312 to rotate. Since the connecting plate 312 is in an arc shape, it can drive the material to rise through the through slot 309 for screening. The diameter of the sieve hole 307 at the left end of the sieve drum 305 is smaller than the sieve hole 307 in the middle of the sieve drum 305, and the diameter of the sieve hole 307 in the middle of the sieve drum 305 is smaller than the sieve hole 307 at the right end of the sieve drum 305. The sieve hole 307 at the right end of the sieve drum 305 has the same diameter as the through slot 309. Due to the different sizes of the sieve holes 307, multi-stage screening of the material can be achieved.

[0026] According to another embodiment of the present invention, Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, support plates 400 are respectively provided on the left and right sides of the interior of the box body 100, and the screen drum 305 is slidably connected to the support plate 400 to ensure the support stability of the screen drum 305. A first screening chamber 501 is provided at the left end of the interior of the box body 100, and a first discharge port 502 is provided at the front end of the first screening chamber 501, and a first solenoid valve 503 is provided on the surface of the first discharge port 502. A second screening chamber 601 is provided between the two support plates 400, and a second discharge port 602 is provided at the front end of the second screening chamber 601, and a second solenoid valve 603 is provided on the surface of the second discharge port 602. A third screening chamber 701 is provided at the right end of the interior of the box body 100, and a third discharge port 702 is provided at the front end of the third screening chamber 701, and a third solenoid valve 703 is provided on the surface of the third discharge port 702. Smaller materials will fall into the first screening chamber 501, and the staff can open the first solenoid valve 503 to discharge it, and moderate materials will fall. The material enters the second screening chamber 601, and the staff can open the second solenoid valve 603 to discharge it. The larger material will fall into the third screening chamber 701, and the staff can open the third solenoid valve 703 to discharge it. An inclined plate 800 is arranged at the bottom of the interior of the box body 100, and the inclined plate 800 is arranged to be inclined upward from front to back. The inclined plate 800 is arranged in coordination with the first discharge port 502, the second discharge port 602 and the third discharge port 702. The inclined plate 800 facilitates the discharge of materials. A dust collecting box 910 is arranged at the rear end of the box body 100, and a fan is arranged inside the dust collecting box 910. A slot connected to the dust collecting box 910 is opened at the rear end of the box body 100, and a box door is connected to the rear end of the dust collecting box 910 through a hinge. Dust will be generated during the screening operation, and the staff can start the fan to draw the dust into the dust collecting box 910. The staff can open the box door to clean the dust, and support legs 920 are arranged at the four corners of the bottom end of the box body 100.

[0027] The use method of the utility model is as follows: when performing material screening operations, the staff can pour the material into the screen drum 305 through the feed port 200, and then the staff can start the motor 301, so that the first rotating rod 303 drives the driving gear 304 to rotate, and under the action of the thread, the screen drum 305 and the second rotating rod 310 are driven to achieve opposite rotational movement. Under the inclination of the screen drum 305, while the material moves to the right, the material will fall downward through the screen hole 307. The rotation of the screen drum 305 enhances the screening effect of the material. During the screening operation, part of the material may accumulate at the left bottom of the partition 308. The second rotating rod 310 drives the connecting plate 312 to rotate. Since the connecting plate 312 is in an arc shape, it can drive the material to rise and pass through the through slot 309 to achieve screening. Dust will be generated during the screening operation. The staff can start the fan to draw the dust into the dust collecting box 910. Due to the different sizes of the sieve holes 307, multi-stage screening of materials can be achieved. Smaller materials will fall into the first screening chamber 501, and the staff can open the first solenoid valve 503 to discharge them. Moderate materials will fall into the second screening chamber 601, and the staff can open the second solenoid valve 603 to discharge them. Larger materials will fall into the third screening chamber 701, and the staff can open the third solenoid valve 703 to discharge them. The inclined plate 800 facilitates the discharge of materials. The utility model can not only achieve multi-stage screening of materials through the rotation of the screen drum 305, but also drive the dispersion of materials through the connecting plate 312, which is beneficial to the screening of materials and improves the working efficiency of the device.

[0028] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-stage drum screen, comprising a box (100), wherein a feed inlet (200) is provided at the left end of the box (100), characterized in that: A screening assembly (300) is arranged inside the box (100); The screening assembly (300) comprises a motor (301) arranged on the right end inclined surface of the box (100), a groove (302) is provided at the right end of the box (100), a first rotating rod (303) is fixedly connected to the output shaft of the motor (301), a driving gear (304) is provided in the middle of the first rotating rod (303), a sliding groove is provided on the left and right sides of the box (100), a screen cylinder (305) is slidably connected in the sliding groove, the screen cylinder (305) is arranged to be inclined downward from left to right, an inner tooth plate (306) is provided on the right side of the screen cylinder (305), and the driving gear (304) and the inner tooth plate (306) are connected to each other. The meshing connection is such that the surface of the sieve drum (305) is provided with evenly distributed sieve holes (307), the left and right sides of the interior of the sieve drum (305) are respectively provided with partitions (308), the surfaces of the partitions (308) are provided with through grooves (309), a second rotating rod (310) is rotatably connected in the groove (302), a driven gear (311) is provided at the right end of the second rotating rod (310), the driving gear (304) is meshingly connected with the driven gear (311), and evenly distributed connecting plates (312) are provided at the left and middle ends of the second rotating rod (310), and the connecting plates (312) are all located on the left side of the partition (308).

2. A multi-stage drum screen as claimed in claim 1, characterized in that: The diameter of the sieve holes (307) at the left end of the sieve cylinder (305) is smaller than the diameter of the sieve holes (307) in the middle of the sieve cylinder (305), and the diameter of the sieve holes (307) in the middle of the sieve cylinder (305) is smaller than the diameter of the sieve holes (307) at the right end of the sieve cylinder (305), and the diameter of the sieve holes (307) at the right end of the sieve cylinder (305) is the same as that of the through slot (309).

3. A multi-stage drum screen as claimed in claim 1, characterized in that: Support plates (400) are respectively arranged on the left and right sides of the box body (100), and the screen drum (305) is slidably connected to the support plates (400).

4. A multi-stage drum screen as claimed in claim 3, characterized in that: A first screening chamber (501) is provided at the left end of the interior of the box body (100), a first discharge port (502) is provided at the front end of the first screening chamber (501), and a first solenoid valve (503) is provided on the surface of the first discharge port (502); a second screening chamber (601) is provided between the two support plates (400), a second discharge port (602) is provided at the front end of the second screening chamber (601), and a second solenoid valve (603) is provided on the surface of the second discharge port (602); a third screening chamber (701) is provided at the right end of the interior of the box body (100), a third discharge port (702) is provided at the front end of the third screening chamber (701), and a third solenoid valve (703) is provided on the surface of the third discharge port (702).

5. A multi-stage drum screen as claimed in claim 4, characterized in that: An inclined plate (800) is provided at the inner bottom end of the box body (100), and the inclined plate (800) is arranged to be inclined upward from front to back. The inclined plate (800) is arranged in coordination with the first discharge port (502), the second discharge port (602) and the third discharge port (702).

6. A multi-stage drum screen as claimed in claim 1, characterized in that: A dust box (910) is arranged at the rear end of the box body (100), a fan is arranged inside the dust box (910), a slot connected to the dust box (910) is opened at the rear end of the box body (100), and a box door is connected to the rear end of the dust box (910) via a hinge.

7. A multi-stage drum screen as claimed in claim 1, characterized in that: Support legs (920) are provided at four corners of the bottom end of the box body (100).

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