An efficient combined screening device for stockpiled garbage
Through the design of combined drum screen and air selection equipment, efficient screening of existing garbage is achieved, the problem of inefficient screening in the existing technology is solved, screening efficiency is improved, and energy saving and dust removal effects are taken into account.
Patent Information
- Application Number
- CN202310709570.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-15
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2043-06-15
AI Technical Summary
In the prior art, the screening process of stock waste requires separate screening of size and light weight, resulting in inefficiency.
A combined high-efficiency screening device is designed, combining drum screens and air selection screening equipment, and sizing and slimming are performed simultaneously through the screening cylinder and fan. The wind power and bottom plate height are adjusted by means of a linkage mechanism, and the wind power and dust removal effect are controlled with a vacuum cleaner and infrared distance sensor.
The simultaneous size and light weight of existing garbage is achieved, the screening efficiency is improved, and the convenience and capacity of material collection are taken into account, achieving the effect of energy-saving and dust removal.
Smart Images
Figure CN116713193B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of garbage disposal devices, and in particular to a combined high-efficiency screening device for stockpiled garbage. Background Art
[0002] Stockpiled garbage refers to the undisposed garbage stored in informal or sanitary landfill sites, including various materials of different sizes and weights such as plastic bags, paper, glass, and hard plastics. Therefore, in the subsequent treatment steps of stockpiled garbage, it is necessary to screen the stockpiled garbage.
[0003] There are various ways to screen stockpiled garbage, including screening according to the size of the stockpiled garbage and screening according to the weight of the stockpiled garbage. Among them, when screening according to the size of the stockpiled garbage, a drum screen can be used for screening. The drum screen is a rotary screening device, mainly including a screening cylinder, an electric motor, a reducer, etc. The screening cylinder is provided with screening holes. The screening process is as follows: The material enters from the feed port of the screening cylinder. When the screening cylinder rolls, the material will roll and be conveyed in the screening cylinder under the action of gravity and inertia. If the volume of the material is smaller than the size of the screening holes, it will fall through the screening holes. If the volume of the material is larger than the size of the screening holes, it will continue to be conveyed backward and finally leave the screening cylinder at the tail of the screening cylinder, so as to screen according to the size of the material. When screening according to the weight of the stockpiled garbage, a pneumatic screening device can be used for screening. The pneumatic screening device is a device that uses air flow for screening, mainly composed of a fan, a pneumatic separation chamber, a pipeline, etc. The material enters the pneumatic separation chamber from the feed port, and the air flow is caused by the fan. The material produces differences in the falling positions under the different actions of the air flow force, centrifugal force, and gravity according to its own weight, so as to screen according to the weight of the material.
[0004] Generally, the processes of screening stockpiled garbage using a drum screen and using a pneumatic screening device need to be carried out separately, which results in a relatively low screening efficiency. Therefore, in order to improve the screening efficiency of stockpiled garbage, the inventor has proposed a combined high-efficiency screening device for stockpiled garbage. Summary of the Invention
[0005] In order to improve the screening efficiency of stockpiled garbage, the present application provides a combined high-efficiency screening device for stockpiled garbage.
[0006] The combined high-efficiency screening device for stockpiled garbage provided by the present invention adopts the following technical solutions:
[0007] A combined high-efficiency screening device for stockpiled garbage, comprising a screening cylinder, a fan and a screening box. The screening cylinder is rotatably arranged. The two ends of the screening cylinder in the axial direction are respectively provided as a feed inlet and a discharge outlet. The screening cylinder is inclined so that the height of the feed inlet is higher than the height of the discharge outlet. The circumferential surface of the screening cylinder is provided with sieve holes. The fan is arranged in front of the feed inlet of the screening cylinder and blows air horizontally towards the discharge outlet. The screening box is arranged behind the discharge outlet of the screening cylinder and is rotatably connected to the screening cylinder. A front aggregate bucket and a rear aggregate bucket are sequentially arranged in the screening box along the wind direction.
[0008] Preferably, the screening box includes a box body and a base. The box body is arranged on the base. The box body is rotatably connected to the discharge outlet of the screening cylinder. An air cavity is formed in the box body. A box door is hinged on one side of the box body. Two cavities are concavely provided at the top of the base and are respectively used as the front aggregate bucket and the rear aggregate bucket.
[0009] Preferably, a wind valve is arranged in front of the feed inlet of the screening cylinder. The fan is connected to the wind valve and blows air through the wind valve. A front bottom plate is arranged in the front aggregate bucket in a lifting manner. A rear bottom plate is arranged in the rear aggregate bucket in a lifting manner. A linkage mechanism is arranged among the wind valve, the front bottom plate and the rear bottom plate. When the wind valve is opened, the front bottom plate is controlled to rise and the rear bottom plate is controlled to descend through the linkage mechanism. When the wind valve is closed, the front bottom plate is controlled to descend and the rear bottom plate is controlled to rise through the linkage mechanism.
[0010] Preferably, a plurality of valve plates are arranged in the wind valve from top to bottom. The maximum rotation angle of the valve plates is 90°. When all the valve plates are vertical, the wind valve is in the minimum opening state. When all the valve plates are horizontal, the wind valve is in the maximum opening state.
[0011] Preferably, the linkage mechanism includes a first synchronous component, a second synchronous component and a third synchronous component. The plurality of valve plates of the wind valve are turned in the same direction through the first synchronous component. The front bottom plate and the rear bottom plate are lifted in the opposite direction through the third synchronous component. The first synchronous component and the third synchronous component are movably connected through the second synchronous component.
[0012] Preferably, the third synchronous component includes a third gear, a front rack and a rear rack. The front rack is fixedly connected to the front bottom plate. The rear rack is fixedly connected to the rear bottom plate. The third gear is rotatably arranged in the base. The front rack and the rear rack are respectively engaged on the opposite sides of the third gear. The third gear controls the front rack and the rear rack to lift in the opposite direction.
[0013] Preferably, it further includes a vacuum cleaner having a suction pipe, and the suction pipe of the vacuum cleaner is communicated with the box body of the screening box.
[0014] Preferably, an infrared distance sensor is provided at the bottom of the rear aggregate bucket, a reflector is provided at the bottom of the rear bottom plate, a controller is connected between the infrared distance sensor and the vacuum cleaner, and when the distance measured by the infrared distance sensor shortens, the wind force of the vacuum cleaner is controlled to increase, and when the distance measured by the infrared distance sensor increases, the wind force of the vacuum cleaner is controlled to decrease.
[0015] Preferably, a front slider is connected between the front rack and the front bottom plate, a rear slider is connected between the rear rack and the rear bottom plate, the base is respectively provided with a front strip hole and a rear strip hole for the front slider and the rear slider to lift, and bellows are connected between the front slider and the top and bottom surfaces of the front strip hole, and between the rear slider and the top and bottom surfaces of the rear strip hole.
[0016] Preferably, front guiding slopes are arranged at the front and rear of the top of the front aggregate bucket, the front guiding slopes are in a downhill shape towards the direction of the front aggregate bucket, rear guiding slopes are arranged at the front and rear of the top of the rear aggregate bucket, and the rear guiding slopes are in a downhill shape towards the direction of the rear aggregate bucket.
[0017] The beneficial effects of the present invention are as follows:
[0018] 1. When using the combined high-efficiency screening device for stockpiled waste of the present invention to screen stockpiled waste, there are two screening processes simultaneously. One is that the stockpiled waste is screened by size through the sieve holes in the screening cylinder. If the volume of the stockpiled waste is smaller than the sieve holes, it falls through the sieve holes, otherwise it finally falls directly into the front aggregate bucket through the discharge port. The other is that the stockpiled waste is screened by weight through the wind force of the fan in the screening cylinder. If the weight of the stockpiled waste is lighter, it is blown into the rear aggregate bucket located behind by the wind force of the fan, otherwise it finally falls directly into the front aggregate bucket through the discharge port. Therefore, the combined high-efficiency screening device for stockpiled waste of the present invention can screen according to the size and weight of the stockpiled waste simultaneously, thereby improving the screening efficiency of the stockpiled waste;
[0019] 2. It should be noted that the greater the wind force, the more garbage can be blown into the rear aggregate bin, and the smaller the wind force, the less garbage can be blown into the rear aggregate bin. Therefore, one of the factors affecting the aggregate quantity in the front and rear aggregate bins is the wind force of the fan, and the opening degree of the air valve determines the wind force during the screening process. Additionally, it should be noted that for the front and rear aggregate bins, the height of the front and rear bottom plates has a two-way impact. If the bottom plate height is relatively high, it is convenient for workers to remove all the garbage in the aggregate bin in subsequent steps. If the bottom plate height is relatively low, the capacity of the aggregate bin can be increased. By setting up a linkage mechanism, when the opening degree of the air valve is large and the air volume is large, the front bottom plate will rise to facilitate the removal of the garbage in the front aggregate bin by subsequent workers, and the rear bottom plate will descend to increase the capacity of the rear aggregate bin. Correspondingly, when the opening degree of the air valve is small and the air volume is small, the front bottom plate will descend and the rear bottom plate will rise. Therefore, in the combined high-efficiency screening device for stockpiled garbage of the present invention, the front and rear aggregate bins can change simultaneously with the change of the wind force to balance the convenience of material removal and the capacity.
[0020] 3. The dust raised by the fan during the screening process can be sucked away by a vacuum cleaner. By controlling the wind force of the vacuum cleaner using an infrared distance sensor, the wind force of the vacuum cleaner can change with the wind force of the fan. On the one hand, when the wind force of the fan is small, less dust is raised, and energy can be saved by reducing the wind force of the vacuum cleaner. When the wind force of the fan is large, more dust is raised, and a better dust removal effect can be achieved by increasing the wind force of the vacuum cleaner, thus balancing the energy-saving effect and the dust removal effect. On the other hand, the synchronous change of the wind force of the fan and the vacuum cleaner can make the pressure in the screening cylinder and the screening box more stable. Description of the Drawings
[0021] Figure 1 is the overall structure diagram of the screening device in the embodiment of the present application;
[0022] Figure 2 is the external structure diagram of the base in the embodiment of the present application;
[0023] Figure 3 is the structural cross-sectional view of the base in the embodiment of the present application;
[0024] Figure 4 is the structure diagram of the screening device after removing the outer cover in the embodiment of the present application;
[0025] Figure 5 is Figure 4 the partial enlarged view at A in
[0026] Figure 6 is the structural cross-sectional view of the air valve in the embodiment of the present application;
[0027] Description of reference numerals: 1, screening cylinder; 11, annular groove; 12, sieve holes; 13, mounting table; 14, outer cover; 15, rotary cylinder motor; 16, runner; 2, screening box; 21, box body; 22, base; 221, wire hole; 3, front aggregate bucket; 31, front bottom plate; 32, front guiding slope; 4, rear aggregate bucket; 41, rear bottom plate; 42, rear guiding slope; 43, infrared distance sensor; 44, reflector; 51, fan; 52, air valve; 53, valve plate; 54, first limiting block; 55, second limiting block; 61, first synchronous belt; 62, first synchronous pulley; 71, first gear; 72, second gear; 73, second synchronous pulley; 74, second synchronous belt; 75, reduction box; 81, third gear; 82, front rack; 83, front slider; 84, front strip hole; 85, rear rack; 86, rear slider; 87, rear strip hole; 88, bellows cover; 9, control rod; 10, vacuum cleaner; 101, suction pipe. Specific embodiments
[0028] The following will be combined with the attached Figures 1-6 and embodiments to further illustrate the present invention.
[0029] This embodiment discloses a combined high-efficiency screening device for stockpiled waste.
[0030] Referring to Figure 1 , the combined high-efficiency screening device for stockpiled waste includes a screening cylinder 1, a mounting table 13, a driving assembly, and a screening box 2. The screening cylinder 1 is rotatably arranged. The two ends of the screening cylinder along the axis direction are respectively opened as a feed inlet and a discharge outlet. The screening cylinder 1 is inclined and the height of the feed inlet is higher than the height of the discharge outlet. Specifically, the mounting table 13 and the screening box 2 are arranged front and rear, and the tabletop of the mounting table 13 is inclined downward from front to back. The driving assembly includes a rotary cylinder motor 15 and two runners 16 rotatably arranged on the tabletop of the mounting table 13. The output shaft of the rotary cylinder motor 15 is connected to one of the runners 16. The screening cylinder 1 is a cylindrical cylinder. The circumferential surface of the screening cylinder 1 is provided with annular grooves 11 around its own axis. The number of the annular grooves 11 is two. The two annular grooves 11 are spaced along the axis direction of the screening cylinder 1. The two annular grooves 11 are respectively for the two runners 16 to be embedded. The discharge outlet of the screening cylinder 1 is rotatably connected to the screening box 2. Through the above settings, the rotary cylinder motor 15 drives the rotation of the screening cylinder 1 by driving one of the runners 16, and the rotatable connection between the screening box 2 and the screening cylinder 1 limits the rotation of the screening cylinder 1 to prevent the screening cylinder 1 from disengaging from the two runners 16.
[0031] Referring to Figure 1, a plurality of screening holes 12 are formed on the circumferential surface of the screening cylinder 1. The screening holes 12 are located between two annular grooves 11. It should be noted that, in order to expand the distribution range of the screening holes 12, the two annular grooves 11 can be made as close as possible to the front and rear ends of the screening cylinder 1. Further, a blanking port is formed on the table surface of the mounting table 13. The blanking port is located below the screening holes 12 of the screening cylinder 1 to facilitate the collection of the garbage passing through the screening holes 12.
[0032] Referring to Figure 1 , the combined high-efficiency screening device for stockpiled garbage further includes a blower 51. The blower 51 is arranged in front of the feeding port of the screening cylinder 1 and blows air horizontally towards the discharging port. A front aggregate bucket 3 and a rear aggregate bucket 4 are sequentially arranged in the screening box 2 along the wind direction. Through the above arrangement, when using the combined high-efficiency screening device for stockpiled garbage of the present invention to screen stockpiled garbage, there are two screening processes simultaneously: one is that the stockpiled garbage is sized through the screening holes 12 in the screening cylinder 1. If the volume of the stockpiled garbage is smaller than the screening holes 12, it will fall through the screening holes 12, otherwise it will finally fall directly into the front aggregate bucket 3 through the discharging port. The other is that the stockpiled garbage is screened by weight through the wind force of the blower 51 in the screening cylinder 1. If the weight of the stockpiled garbage is lighter, it will be blown into the rear aggregate bucket 4 located behind by the wind force of the blower 51, otherwise it will finally fall directly into the front aggregate bucket 3 through the discharging port. Therefore, the combined high-efficiency screening device for stockpiled garbage of the present invention can screen according to the size and weight of the stockpiled garbage simultaneously, thereby improving the screening efficiency of the stockpiled garbage.
[0033] In this embodiment, the blower 51 is a centrifugal blower to have sufficient air pressure for the air separation of the stockpiled garbage. In addition, in order to achieve the effects of energy conservation and reasonable adjustment of the air volume and air pressure, the motor of the blower 51 is also connected with a frequency converter.
[0034] Referring to Figure 2 and Figure 3 , the screening box 2 includes a box body 21 and a base 22. The box body 21 is arranged on the base 22. The box body 21 is rotatably connected to the discharging port of the screening cylinder 1. A wind cavity is formed in the box body 21. The wind of the blower 51 finally blows into the wind cavity. One side of the box body 21 is hingedly provided with a box door. Two cavities are concavely formed on the top of the base 22 and are respectively used as the front aggregate bucket 3 and the rear aggregate bucket 4. After the screening is completed, by opening the box door, the staff can take out the garbage in the front aggregate bucket 3 and the rear aggregate bucket 4 for collection.
[0035] Referring to Figures 1 to 3, a wind valve 52 is provided in front of the feed inlet of the screening cylinder 1. The blower 51 is connected to the wind valve 52 and blows air through the wind valve 52. The wind valve 52 is used to control the wind force blown into the screening cylinder 1 and the screening box 2. It should be noted that, the greater the wind force, the more garbage can be blown to the rear aggregate bucket 4, and the smaller the wind force, the less garbage can be blown to the rear aggregate bucket 4. Therefore, one of the factors affecting the aggregate amounts in the front aggregate bucket 3 and the rear aggregate bucket 4 is the wind force of the blower 51. Further, a front bottom plate 31 is arranged to be liftable in the front aggregate bucket 3, and a rear bottom plate 41 is arranged to be liftable in the rear aggregate bucket 4. A linkage mechanism is arranged between the wind valve 52, the front bottom plate 31 and the rear bottom plate 41. During the opening process of the wind valve 52, the front bottom plate 31 is controlled to rise and the rear bottom plate 41 is controlled to descend through the linkage mechanism. During the closing process of the wind valve 52, the front bottom plate 31 is controlled to descend and the rear bottom plate 41 is controlled to rise through the linkage mechanism. For the front aggregate bucket 3 and the rear aggregate bucket 4, the heights of the front bottom plate 31 and the rear bottom plate 41 have a two-way influence. If the bottom plate height is relatively high, it is convenient for the staff to take out all the garbage in the aggregate bucket in the subsequent steps. If the bottom plate height is relatively low, the capacity of the aggregate bucket can be increased. By arranging the linkage mechanism, when the opening degree of the wind valve 52 is relatively large and the air volume is relatively large, the front bottom plate 31 will rise to facilitate the staff in the subsequent steps to take out the garbage in the front aggregate bucket 3, and the rear bottom plate 41 will descend to increase the capacity in the rear aggregate bucket 4. Correspondingly, when the opening degree of the wind valve 52 is relatively small and the air volume is relatively small, the front bottom plate 31 will descend and the rear bottom plate 41 will rise. Therefore, in the combined and highly efficient screening device for stockpiled garbage of the present invention, the front aggregate bucket 3 and the rear aggregate bucket 4 can change simultaneously with the change of the wind force to balance the convenience of material taking and the capacity.
[0036] Refer to Figures 4 to 6 , multiple valve plates 53, a first limit block 54 and a second limit block 55 are arranged in the wind valve 52 from top to bottom. Both ends of the valve plate 53 are connected with a rotating shaft, and the valve plate 53 is rotatably arranged in the wind valve 52 through the rotating shaft. The first limit block 54 and the second limit block 55 are fixedly arranged in the wind valve 52, and the first limit block 54 and the second limit block 55 are used to make the maximum rotation angle of the valve plate 53 be 90°. When multiple valve plates 53 are all vertical, the wind valve 52 is in the minimum opening state, and at this time the valve plate 53 abuts against the first limit block 54. When multiple valve plates 53 are all horizontal, the wind valve 52 is in the maximum opening state, and at this time the valve plate 53 abuts against the second limit block 55.
[0037] Refer to Figure 4 and Figure 5 , the linkage mechanism includes a first synchronization component, a second synchronization component and a third synchronization component. Multiple valve plates 53 of the wind valve 52 achieve synchronous flipping in the same direction through the first synchronization component, the front bottom plate 31 and the rear bottom plate 41 achieve reverse lifting through the third synchronization component, and the first synchronization component and the third synchronization component are movably connected through the second synchronization component.
[0038] Refer to Figures 4 to 6 , the first synchronization component includes a first synchronous belt 61 and a plurality of first synchronous wheels 62. The plurality of first synchronous wheels 62 are coaxially connected to the rotating shafts of the plurality of valve plates 53 one by one, and the plurality of first synchronous wheels 62 are connected by the first synchronous belt 61, so that the plurality of valve plates 53 are adjusted synchronously. Therefore, only one set of the first limiting block 54 and the second limiting block 55 needs to be provided. In this embodiment, the first limiting block 54 and the second limiting block 55 are used to limit the maximum rotation angle of the valve plate 53 located at the uppermost position. Since the plurality of valve plates 53 are adjusted synchronously, this set of the first limiting block 54 and the second limiting block 55 can limit the maximum rotation angles of the plurality of valve plates 53 simultaneously.
[0039] Refer to Figure 1 、 Figure 4 and Figure 5 , the second synchronization component includes a first gear 71, a second gear 72, a second synchronous wheel 73 and a second synchronous belt 74. The first gear 71 is connected to the rotating shaft of the lowermost valve plate 53 through a speed reducer 75. The second gear 72 is rotatably arranged on the mounting table 13, and the first gear 71 meshes with the second gear 72. Two second synchronous wheels 73 are provided, one of the second synchronous wheels 73 is coaxially connected to the second gear 72, and the other second synchronous wheel 73 is rotatably arranged on the base 22 of the screening box 2. The two second synchronous wheels 73 are connected by the second synchronous belt 74. The linkage mechanism further includes a control rod 9. In this embodiment, the control rod 9, one of the second synchronous wheels 73 and the second gear 72 are coaxially connected.
[0040] Refer to Figure 1 , the mounting table 13 and the base 22 are provided with a housing 14 for protecting the first gear 71, the second gear 72, the second synchronous wheel 73 and the second synchronous belt 74.
[0041] Refer to Figure 4 and Figure 5 , the third synchronization component includes a third gear 81, a front rack 82 and a rear rack 85. The front rack 82 is fixedly connected to the front bottom plate 31, the rear rack 85 is fixedly connected to the rear bottom plate 41. The third gear 81 is rotatably arranged in the base 22, and the third gear 81 is coaxially connected to the second synchronous wheel 73 on the base 22. The front rack 82 and the rear rack 85 are respectively engaged on opposite sides of the third gear 81, so that the third gear 81 controls the reverse lifting of the front rack 82 and the rear rack 85.
[0042] The linkage process among the air valve 52, the front bottom plate 31, and the rear bottom plate 41 is as follows: When the control lever 9 is used to control the second synchronous pulley 73 connected thereto to rotate clockwise, the valve plate 53 of the air valve 52 rotates counterclockwise to increase the opening degree of the air valve 52, thereby increasing the wind force. At the same time, the third gear 81 rotates clockwise, causing the front bottom plate 31 to rise and the rear bottom plate 41 to descend, thereby increasing the capacity of the rear aggregate bucket 4; when the control lever 9 is used to control the second synchronous pulley 73 connected thereto to rotate counterclockwise, the valve plate 53 of the air valve 52 rotates clockwise, reducing the opening degree of the air valve 52, and the third gear 81 rotates counterclockwise, causing the front bottom plate 31 to descend and the rear bottom plate 41 to rise.
[0043] In other embodiments, a tension pulley is also provided in the first synchronous assembly and the second synchronous assembly to maintain the tension state of the first synchronous belt 61 and the second synchronous belt 74, so as to maintain good synchronism between the first synchronous pulleys 62 and between the second synchronous pulleys 73. And, in other embodiments, the reduction ratios between the rotating shaft of the valve plate 53 and the first gear 71, and between the second synchronous pulley 73 and the third gear 81 can be adjusted according to actual situations to meet actual usage requirements.
[0044] Refer to Figure 3 , a front slider 83 is connected between the front rack 82 and the front bottom plate 31, and a rear slider 86 is connected between the rear rack 85 and the rear bottom plate 41. The base 22 is respectively provided with a front strip-shaped hole 84 and a rear strip-shaped hole 87 for the front slider 83 and the rear slider 86 to move up and down. The front strip-shaped hole 84 provides space for the sliding of the front slider 83, and the rear strip-shaped hole 87 provides space for the sliding of the rear slider 86. Further, bellows 88 are connected between the front slider 83 and the top and bottom surfaces of the front strip-shaped hole 84, and between the rear slider 86 and the top and bottom surfaces of the rear strip-shaped hole 87. The bellows 88 are provided to prevent garbage from falling out from the front strip-shaped hole 84 or the rear strip-shaped hole 87.
[0045] Refer to Figure 2 and Figure 3 , front guiding slopes 32 are provided at the front and rear of the top of the front aggregate bucket 3. The front guiding slopes 32 slope downward in the direction of the front aggregate bucket 3. Rear guiding slopes 42 are provided at the front and rear of the top of the rear aggregate bucket 4. The rear guiding slopes 42 slope downward in the direction of the rear aggregate bucket 4. And, the front guiding slope 32 located behind the front aggregate bucket 3 is connected to the rear guiding slope 42 located in front of the rear aggregate bucket 4. By providing the front guiding slopes 32 and the rear guiding slopes 42, it is used to reduce the garbage remaining on the top surface of the base 22, so that the garbage can be better aggregated in the front aggregate bucket 3 or the rear aggregate bucket 4.
[0046] Refer to Figures 1 to 3, the combined and efficient screening device for stockpiled garbage further includes a vacuum cleaner 10. The vacuum cleaner 10 is located behind the screening box 2. The vacuum cleaner 10 has a suction pipe 101 and an air outlet. The suction pipe 101 of the vacuum cleaner 10 is communicated with the box body 21 of the screening box 2. The vacuum cleaner 10 can suck away the dust raised by the fan 51 during the screening process. A screen is arranged between the vacuum cleaner 10 and the screening box 2. The screen is arranged to prevent non-dust garbage in the screening box 2 from being sucked into the vacuum cleaner 10. Further, an infrared distance sensor 43 is arranged at the bottom of the rear aggregate bucket 4, and a reflector 44 is arranged at the bottom of the rear bottom plate 41. A controller is connected between the infrared distance sensor 43 and the vacuum cleaner 10. The controller is arranged on the vacuum cleaner 10. When the distance measured by the infrared distance sensor 43 shortens, the controller controls the wind force of the vacuum cleaner 10 to increase. When the distance measured by the infrared distance sensor 43 lengthens, the controller controls the wind force of the vacuum cleaner 10 to decrease. In addition, a wire hole 221 is formed in the base 22 of the screening box 2 for a power line to pass through, so as to facilitate the electrical connection between the infrared distance sensor 43 and the controller arranged on the vacuum cleaner 10. Through the above arrangement, by using the infrared distance sensor 43 to control the magnitude of the wind force of the vacuum cleaner 10, the magnitude of the wind force of the vacuum cleaner 10 can be changed along with the magnitude of the wind force of the fan 51. On the one hand, when the wind force of the fan 51 is small, less dust is raised, and energy conservation can be achieved by reducing the wind force of the vacuum cleaner 10. When the wind force is large, more dust is raised, and a better dust removal effect can be achieved by increasing the wind force of the vacuum cleaner 10, thus taking into account both the energy conservation effect and the dust removal effect. On the other hand, the synchronous change of the wind force of the fan 51 and the wind force of the vacuum cleaner 10 can make the pressure in the screening cylinder 1 and the screening box 2 more stable.
[0047] The above are all the preferred embodiments of the present invention, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A combined and highly efficient screening device for stockpiled garbage, characterized in that: It includes a screening cylinder (1), a blower (51) and a screening box (2). The screening cylinder (1) is rotatably arranged. The two ends of the screening cylinder (1) in the axial direction are respectively provided as a feed inlet and a discharge outlet. The screening cylinder (1) is inclined so that the height of the feed inlet is higher than the height of the discharge outlet. The circumferential surface of the screening cylinder (1) is provided with screening holes (12). The blower (51) is arranged in front of the feed inlet of the screening cylinder (1) and blows air horizontally towards the discharge outlet. The screening box (2) is arranged behind the discharge outlet of the screening cylinder (1) and is rotatably connected to the screening cylinder (1). A front aggregate bucket (3) and a rear aggregate bucket (4) are sequentially arranged in the screening box (2) along the wind direction; The screening box (2) includes a box body (21) and a base (22). The box body (21) is arranged on the base (22). The box body (21) is rotatably connected to the discharge outlet of the screening cylinder (1). A wind cavity is provided in the box body (21). A box door is hinged on one side of the box body (21). Two cavities are concavely provided at the top of the base (22) and are respectively used as the front aggregate bucket (3) and the rear aggregate bucket (4); A wind valve (52) is arranged in front of the feed inlet of the screening cylinder (1). The blower (51) is connected to the wind valve (52) and blows air through the wind valve (52). A front bottom plate (31) is arranged in the front aggregate bucket (3) in a lifting manner. A rear bottom plate (41) is arranged in the rear aggregate bucket (4) in a lifting manner. A linkage mechanism is arranged among the wind valve (52), the front bottom plate (31) and the rear bottom plate (41). During the opening process of the wind valve (52), the front bottom plate (31) is controlled to rise and the rear bottom plate (41) is controlled to descend through the linkage mechanism. During the closing process of the wind valve (52), the front bottom plate (31) is controlled to descend and the rear bottom plate (41) is controlled to rise through the linkage mechanism; A plurality of valve plates (53) are arranged in the wind valve (52) from top to bottom. The maximum rotation angle of the valve plate (53) is 90°. When all the valve plates (53) are vertical, the wind valve (52) is in the minimum opening state. When all the valve plates (53) are horizontal, the wind valve (52) is in the maximum opening state; The linkage mechanism includes a first synchronization component, a second synchronization component and a third synchronization component. The plurality of valve plates (53) of the wind valve (52) are turned in the same direction through the first synchronization component. The front bottom plate (31) and the rear bottom plate (41) are lifted and lowered in the opposite direction through the third synchronization component. The first synchronization component and the third synchronization component are movably connected through the second synchronization component; The third synchronization component includes a third gear (81), a front rack (82) and a rear rack (85). The front rack (82) is fixedly connected to the front bottom plate (31), and the rear rack (85) is fixedly connected to the rear bottom plate (41). The third gear (81) is rotatably arranged in the base (22). The front rack (82) and the rear rack (85) are respectively engaged on opposite sides of the third gear (81). The third gear (81) controls the reverse lifting of the front rack (82) and the rear rack (85).
2. The combined high-efficiency screening device for stockpiled waste according to claim 1, characterized in that: It further includes a vacuum cleaner (10). The vacuum cleaner (10) has a suction pipe (101), and the suction pipe (101) of the vacuum cleaner (10) is communicated with the box body (21) of the screening box (2).
3. The combined and highly efficient screening device for stockpiled waste according to claim 2, wherein: An infrared distance sensor (43) is arranged at the bottom of the rear aggregate bucket (4), and a reflector (44) is arranged at the bottom of the rear bottom plate (41). A controller is connected between the infrared distance sensor (43) and the vacuum cleaner (10). When the distance measured by the infrared distance sensor (43) shortens, it controls the wind force of the vacuum cleaner (10) to increase. When the distance measured by the infrared distance sensor (43) increases, it controls the wind force of the vacuum cleaner (10) to decrease.
4. The combined high-efficiency screening device for stockpiled waste according to claim 1, wherein: A front slider (83) is connected between the front rack (82) and the front bottom plate (31), and a rear slider (86) is connected between the rear rack (85) and the rear bottom plate (41). The base (22) is respectively provided with a front strip hole (84) and a rear strip hole (87) for the front slider (83) and the rear slider (86) to lift. Bellows (88) are connected between the top and bottom surfaces of the front slider (83) and the front strip hole (84), and between the top and bottom surfaces of the rear slider (86) and the rear strip hole (87).
5. The combined and highly efficient screening device for stockpiled waste according to claim 1, characterized in that: Front guiding slopes (32) are arranged at the front and rear of the top of the front aggregate bucket (3). The front guiding slopes (32) slope downwards towards the front aggregate bucket (3). Rear guiding slopes (42) are arranged at the front and rear of the top of the rear aggregate bucket (4). The rear guiding slopes (42) slope downwards towards the rear aggregate bucket (4).
Citation Information
Patent Citations
Air separation treater for sieving garbage
CN1872430A
Vibration winnowing equipment for recycled aggregate of construction waste
CN212664195U