CN210847074U - Large roller screen - Google Patents
Large roller screen Download PDFInfo
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- CN210847074U CN210847074U CN201921569620.1U CN201921569620U CN210847074U CN 210847074 U CN210847074 U CN 210847074U CN 201921569620 U CN201921569620 U CN 201921569620U CN 210847074 U CN210847074 U CN 210847074U
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- roller
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- screen
- mesh roller
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Abstract
A large roller screen includes a base, and a roller screen assembly. The trommel screen assembly comprises a fine mesh roller assembly and a coarse mesh roller assembly. The fine mesh roller assembly comprises a fine mesh roller, a plurality of first through holes and a plurality of first cutters. The coarse-mesh roller assembly comprises a coarse-mesh roller, a plurality of second through holes and a plurality of second cutters. The central axes of the coarse and fine mesh rollers are superposed, and the included angle between the central axes of the coarse and fine mesh rollers and the horizontal plane is an acute angle. The distance from the central shaft of the coarse mesh roller to the horizontal plane is smaller than the distance from the central shaft of the fine mesh roller to the horizontal plane. While the fine mesh roller is rotating, the trash bag is pierced by the first cutter under the action of gravity, and is torn under the action of centrifugal force during the rotation. And when the torn garbage falls from the fine mesh roller to the coarse mesh roller, the garbage with different sizes can fall from the first through hole and the second through hole on the coarse mesh roller and the fine mesh roller as much as possible, so that the purpose of garbage classification is achieved.
Description
Technical Field
The utility model belongs to the technical field of waste classification mechanical equipment, especially a big roller screen.
Background
The municipal refuse treatment in China still belongs to the primary stage, and at present, the municipal refuse is generally subdivided into four groups in China, namely a material refuse group (comprising glass, magnetic or non-magnetic metal, waste paper, rubber and plastic), an organic refuse group (kitchen refuse and biological refuse), an inorganic refuse group (furnace ash, bricks and tiles, ceramics and the like), a toxic and harmful refuse group (waste batteries, waste fluorescent lamps, pesticide containers, overdue medicines, medical wastes and electronic wastes of waste electrical appliances such as waste televisions, telephones, computers and the like). The collection mode of domestic garbage in China is basically mixed collection at present, and although classified collection is promoted in the government offices in 2002, the classified collection of garbage only accounts for 16 percent at present. The main collection methods are roughly divided into three types, one is to place the collection containers in fixed places, such as residential areas, both sides of streets, and other public places. Special sanitation personnel are responsible for collecting the waste in these containers each day. Secondly, a fixed garbage collection station is built in a residential area, and residents can throw household garbage to the garbage station every day.
The residential waste has a characteristic that the residential waste is collected together by plastic bags and then thrown into a bucket. When the resident garbage is collected together, the garbage is firstly needed to be broken when being treated, and the garbage is generally crushed by rolling, the success rate of the crushing is generally below 40 percent, and the subsequent treatment of the garbage is not disturbed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can improve big drum sieve of broken bag rate to solve above-mentioned problem.
A large roller screen includes a base and a roller screen assembly mounted on the base. The drum screen assembly comprises a fine mesh drum assembly and a coarse mesh drum assembly connected with the fine mesh drum assembly. The fine mesh roller assembly comprises a fine mesh roller, a plurality of first through holes formed in the fine mesh roller, and a plurality of first cutters formed in the fine mesh roller. Each of the plurality of first cutters is tapered and extends toward a center of the fine mesh roller. The coarse mesh roller assembly comprises a coarse mesh roller, a plurality of second through holes formed in the coarse mesh roller, and a plurality of second cutters arranged on the inner side wall of the coarse mesh roller. The central axes of the coarse and fine mesh rollers are superposed, and the included angle between the central axes of the coarse and fine mesh rollers and the horizontal plane is an acute angle. The distance from the central shaft of the coarse mesh roller to the horizontal plane is smaller than the distance from the central shaft of the fine mesh roller to the horizontal plane. The first cutter and the second cutter have the same structure.
Further, the aperture of the first through hole is smaller than the aperture of the second through hole.
Furthermore, the first cutter and the second cutter are triangular cutters.
Further, the large roller screen also comprises a group of driving component groups arranged between the base and the roller screen components.
Further, the driving assembly group comprises two first guide rails arranged on the fine mesh roller at intervals and a first guide wheel arranged on the base, and the first guide rails are erected on the first guide wheel and driven by the first guide wheel to rotate.
Further, the driving assembly group comprises a first driving motor for driving the first guide wheel to rotate.
Further, the driving assembly group comprises two second guide rails arranged on the coarse roller at intervals, and a second guide wheel arranged on the base, wherein the second guide rail is erected on the second guide wheel and driven by the second guide wheel to rotate.
Further, the coarse and fine mesh rollers have the same diameter.
Furthermore, the fine mesh roller assembly also comprises a discharge hole arranged at the bottom of the fine mesh roller.
Further, the discharge hole of the coarse mesh roller is the axial free end of the coarse mesh roller.
Compared with the prior art, when the garbage is thrown into the fine mesh roller of the large roller screen, the garbage bag is pierced by the first cutter under the action of gravity while the fine mesh roller rotates, and meanwhile, the garbage bag is torn under the action of centrifugal force during the rotation process, the garbage is thrown out at the same time, the thrown-out garbage falls down if falling from the first through hole when passing through the fine mesh roller, enters the coarse mesh roller if failing to fall from the first through hole, falls down if falling from the second through hole, and is thrown out from the axial free end of the coarse mesh roller if failing to fall. Meanwhile, when the coarse mesh roller and the fine mesh roller rotate, because the included angle between the central axis of the coarse mesh roller and the horizontal plane is an acute angle, namely the coarse mesh roller and the fine mesh roller are obliquely arranged, the garbage bag which is not torn is torn in the process of flowing from the fine mesh roller to the coarse mesh roller in the rotating process. And when the torn garbage falls from the fine mesh roller to the coarse mesh roller, the garbage with different sizes can fall from the first through hole and the second through hole on the coarse mesh roller and the fine mesh roller as much as possible, so that the purpose of garbage classification is achieved.
Drawings
Fig. 1 is a schematic structural view of a large roller screen provided by the present invention.
Fig. 2 is a partial structural schematic view of the large roller screen of fig. 1.
Fig. 3 is a schematic view showing the structure of a fine mesh roller screen provided in the large roller screen of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 3, which are schematic structural views of the large roller screen provided by the present invention. The large roller screen includes a base 10, a trommel assembly 20 mounted on the base 10, and a driving assembly group 30 disposed between the base 10 and the trommel assembly 20. It is contemplated that the large roller screen may include other functional modules, such as assembly components, as well as electrical connections, control modules, etc., as is known to those skilled in the art and will not be described in detail herein.
The base 10 is used to support the trommel assembly 20, which may be designed according to actual needs, and is a frame structure. The base 10 is a wedge-shaped structure.
The trommel assembly 20 includes a fine mesh roller assembly 21 and a coarse mesh roller assembly 22 connected to the fine mesh roller assembly 21. The fine mesh roller assembly 21 includes a fine mesh roller 211, a plurality of first through holes 212 formed in the fine mesh roller 211, a plurality of first cutters 213 formed on the fine mesh roller 211, and a discharge hole 214 formed at the bottom of the fine mesh roller 211. The fine drum 211 is cylindrical to facilitate rotation. The first through hole 212 is used for allowing the garbage in the torn garbage bag to fall down therefrom to enter the discharge port 214. The diameter of the first through hole 212 can be set according to actual needs, for example, by investigating the composition of the residential waste to make appropriate waste fall from the first through hole 212, so as to achieve the purpose of primary classification of the waste. Each of the first cutters 213 is tapered, and may be a three-edged cutter, which may first pierce the trash bag and then be torn by the three-edged cutter under centrifugal force during rotation of the fine mesh drum 211. The discharging hole 214 is used for collecting or conveying the garbage falling from the first through hole 212.
The coarse roller assembly 22 includes a coarse roller 221, a plurality of second through holes 222 formed on the coarse roller 221, and a plurality of second cutters 223 disposed on the inner sidewall of the coarse roller 221. The coarse-mesh roller 221 has the same structure as the fine-mesh roller 211 and has the same diameter. The diameter of the second through hole 222 is larger than that of the first through hole 211 so that garbage that does not fall from the first through hole 211 can fall from the second through hole 222. The garbage, which does not fall from the second through hole 222, is thrown out of the free end of the coarse drum 221 by the centrifugal force. The second cutter 223 has the same structure and function as the first cutter 213, and will not be described in detail. The bottom of the coarse roller 221 of the coarse roller assembly 22 also has an outlet, and a conveyor belt (not shown) may be disposed at the outlet to convey the garbage falling from the second through hole 222 of the coarse roller 221 for further treatment. And the garbage thrown from the free end of the coarse-mesh drum 221 is collected and disposed. The central axes of the coarse and fine mesh rollers 221, 211 are coincident, and the included angle between the central axes of the coarse and fine mesh rollers 221, 211 and the horizontal plane is an acute angle, that is, the roller screen assembly 20 is obliquely arranged, so as to facilitate rolling of the garbage and fall from the first and second through holes 212, 222 in the rolling process. Specifically, the distance from the central axis of the coarse drum 221 to the horizontal plane is smaller than the distance from the central axis of the fine drum 211 to the horizontal plane, that is, the garbage rolls off from the fine drum 211 toward the coarse drum 221.
The driving assembly group 30 includes two first guide rails 31 spaced apart from each other on the fine-mesh roller 211, a first guide wheel 32 disposed on the base 10, two second guide rails 33 spaced apart from each other on the coarse-mesh roller 221, and a second guide wheel 34 disposed on the base 10. The first guide rail 31 is mounted on the first guide wheel 32 and is driven to rotate by the first guide wheel 32. The second guide rail 33 is mounted on the second guide wheel 34 and is driven to rotate by the second guide wheel 34. It is contemplated that the drive assembly group 30 further includes at least one drive motor (not shown). The driving motor may be connected to the first and second guide wheels 32 and 34 by a hinge and may drive the first and second guide wheels 32 and 34 to rotate, thereby driving the fine and coarse rollers 211 and 221 to rotate. The first and second guide rails 31 and 33 are fixedly disposed on the fine and coarse rollers 211 and 221, and generate friction with the first and second guide wheels 32 and 34 by gravity, so that the fine and coarse rollers 211 and 221 can be driven to rotate when the first and second guide wheels 32 and 34 rotate.
It will be appreciated that the large roller screen further comprises two side doors 40 disposed on the sides of the coarse and line rollers 221, 211, respectively. The side door 40 can be locked during operation and can be opened during maintenance, thereby facilitating the use of people.
Compared with the prior art, when the garbage is thrown into the fine mesh roller 211 of the large roller screen, the garbage bag is pierced by the first cutter 213 under the action of gravity while the fine mesh roller 211 rotates, meanwhile, the garbage bag is torn under the action of centrifugal force during the rotation, the garbage is thrown out at the same time, the thrown-out garbage falls down if the thrown-out garbage can fall from the first through hole 212 when passing through the fine mesh roller 211, enters the coarse mesh roller 221 if the thrown-out garbage cannot fall from the first through hole 212, falls down if the thrown-out garbage can fall from the second through hole 222, and is thrown out from the axial free end of the coarse mesh roller 221 if the thrown-out garbage cannot fall. Meanwhile, when the coarse and fine mesh rollers 221 and 211 rotate, since the included angle between the central axes of the coarse and fine mesh rollers 221 and 211 and the horizontal plane is an acute angle, that is, the coarse and fine mesh rollers 221 and 211 are arranged obliquely, the garbage bag which is not torn is torn in the process of flowing from the fine mesh roller 211 to the coarse mesh roller 221 in the rotating process. In the process that the torn garbage falls from the fine mesh roller 211 to the coarse mesh roller 221, the garbage with different sizes can fall from the first through hole 212 and the second through hole 221 on the coarse mesh roller 221 and the fine mesh roller 211 as far as possible, so that the purpose of garbage classification is achieved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (10)
1. A big roller screen is characterized in that: the large roller screen comprises a base and a roller screen assembly erected on the base, the roller screen assembly comprises a fine roller assembly and a coarse roller assembly connected with the fine roller assembly, the fine roller assembly comprises a fine roller, a plurality of first through holes formed in the fine roller and a plurality of first cutters formed in the fine roller, each of the plurality of first cutters is conical and extends towards the center of the fine roller, the coarse roller assembly comprises a coarse roller, a plurality of second through holes formed in the coarse roller and a plurality of second cutters formed in the inner side wall of the coarse roller, the central axes of the coarse roller and the fine roller are overlapped, the included angle between the central axis of the coarse roller and the fine roller and a horizontal plane is an acute angle, and the distance from the central axis of the coarse roller to the horizontal plane is smaller than that from the central axis of the fine roller to the water screen The distance of the planes, the first cutter and the second cutter have the same structure.
2. The large roller screen of claim 1, wherein: the aperture of the first through hole is smaller than the aperture of the second through hole.
3. The large roller screen of claim 1, wherein: the first cutter and the second cutter are triangular cutters.
4. The large roller screen of claim 1, wherein: the large roller screen also comprises a group of driving component groups arranged between the base and the roller screen components.
5. The large roller screen of claim 4, wherein: the driving component group comprises two first guide rails arranged on the fine mesh roller at intervals and a first guide wheel arranged on the base, and the first guide rails are erected on the first guide wheel and driven by the first guide wheel to rotate.
6. The large roller screen of claim 5, wherein: the driving component group comprises a first driving motor for driving the first guide wheel to rotate.
7. The large roller screen of claim 4, wherein: the driving component group comprises two second guide rails arranged on the coarse roller at intervals and a second guide wheel arranged on the base, and the second guide rails are erected on the second guide wheel and driven by the second guide wheel to rotate.
8. The large roller screen of claim 1, wherein: the coarse and fine mesh rollers have the same diameter.
9. The large roller screen of claim 1, wherein: the fine mesh roller assembly further comprises a discharge hole arranged at the bottom of the fine mesh roller.
10. The large roller screen of claim 1, wherein: the discharge hole of the coarse mesh roller is the axial free end of the coarse mesh roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569620.1U CN210847074U (en) | 2019-09-20 | 2019-09-20 | Large roller screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569620.1U CN210847074U (en) | 2019-09-20 | 2019-09-20 | Large roller screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210847074U true CN210847074U (en) | 2020-06-26 |
Family
ID=71296848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921569620.1U Active CN210847074U (en) | 2019-09-20 | 2019-09-20 | Large roller screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210847074U (en) |
-
2019
- 2019-09-20 CN CN201921569620.1U patent/CN210847074U/en active Active
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