Hazardous waste screening device

Abstract

The utility model relates to the technical field of screening-out devices, in particular to a hazardous waste screening-out device which comprises a screening box internally provided with two screening plates; the support frame is used as a main support; the motor is installed on the supporting frame and used for providing driving force; the two sets of driving mechanisms are symmetrically distributed on the two sides of the screening box and used for driving the screening box to do reciprocating motion; the single-group driving mechanism comprises a rotating disc, a driving mechanism and a driving mechanism, wherein a positioning groove is formed in the rotating disc; the driving block is arranged in the positioning groove in a sliding manner; a straight notch tangent to the driving block is formed in the driven piece; one end of the connecting frame is mounted on the driven part, and the other end of the connecting frame is connected with the screening box; the transmission mechanism is arranged on the supporting frame and used for being connected with the motor to drive the driving mechanism; the transmission mechanism comprises a first transmission rod on which a first bevel gear is mounted, one end of the first bevel gear is engaged with a second bevel gear, and one end of the second bevel gear is connected to the output end of the motor; third bevel gears are installed on the two sides of the first transmission rod correspondingly.

Description

Technical Field

[0001] The present application relates to the technical field of screening devices, in particular to a hazardous waste screening device. Background Art

[0002] In the process of hazardous waste treatment, screening is an important step for classifying waste according to particle size for subsequent treatment or recycling. Existing screening devices often have problems such as low screening efficiency and insufficient screening accuracy. In addition, traditional screening devices are not convenient for adjusting screening parameters according to different screening materials (different materials have different physical properties, such as particle size distribution, density, shape, etc., which will affect the screening efficiency and quality).

[0003] In view of this, the present application proposes a hazardous waste screening device to solve this problem. Summary of the Invention

[0004] The purpose of the present application aims to solve at least one of the above technical defects.

[0005] To this end, an object of the present application is to provide a hazardous waste screening device to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] To achieve the above object, an embodiment of one aspect of the present application provides a hazardous waste screening device, including: a screening box with two screening plates inside; a support frame for main support; a motor installed on the support frame for providing driving force; two sets of driving mechanisms symmetrically distributed on both sides of the screening box for driving the screening box to move reciprocally; a single set of driving mechanism including: a rotating disk with a positioning groove opened thereon; a driving block slidably arranged in the positioning groove; a follower with a straight slot opening tangent to the driving block; a connecting frame with one end installed on the follower and the other end connected to the screening box; a transmission mechanism arranged on the support frame for connecting the motor to drive the driving mechanism.

[0007] Preferably, according to any of the above solutions, the transmission mechanism includes: a first transmission rod with a first bevel gear installed thereon, one end of the first bevel gear meshing with a second bevel gear, and one end of the second bevel gear connected to the output end of the motor; third bevel gears are installed on both sides of the first transmission rod, and one end of each third bevel gear meshes with a fourth bevel gear; a second transmission rod with a fifth bevel gear installed at one end and connected to the fourth bevel gear at the other end; one end of the fifth bevel gear meshes with a sixth bevel gear, and the sixth bevel gear is installed on the rotating disk.

[0008] Preferably, according to any of the above solutions, the two screening plates are inclined and arranged vertically, and the screen hole specification of the lower screening plate is smaller than that of the upper screening plate.

[0009] Preferably, in any of the above solutions, a feed pipe is installed on the screening box, and a valve is provided on the feed pipe; three discharge slots are provided on the screening box in a vertical distribution; three sealing plates are detachably arranged on the screening plate to seal the three discharge slots respectively.

[0010] Preferably, in any of the above solutions, a round hole is provided on the support frame, and the rotating disk is rotatably arranged in the round hole; a positioning block is fixedly provided on the support frame, and a limiting slot is provided on the positioning block.

[0011] Preferably, in any of the above solutions, a first support block is installed on the support frame, and the first transmission rod is rotatably arranged in the first support block; second support blocks are installed at both ends of the support frame, and the second transmission rod is rotatably arranged in the second support block.

[0012] Preferably, in any of the above solutions, connection holes are provided at both ends of the positioning slot; a limiting rod is installed on the driven member, and the limiting rod is slidably arranged in the limiting slot.

[0013] Preferably, in any of the above solutions, the driving mechanism further includes a lead screw, the lead screw is rotatably arranged in the connection hole, the driving block is threadedly connected to the lead screw, and an operating rod is fixedly provided at one end of the lead screw.

[0014] Compared with the prior art, the advantages and beneficial effects of the present application are as follows:

[0015] 1. By driving the screening box to move reciprocally through the driving mechanism, the screening efficiency can be improved, making it easier for fine particles to pass through the sieve holes, and the screening efficiency is higher.

[0016] 2. By controlling the lead screw, the movement amplitude of the screening box can be adjusted. Increasing the movement stroke of the screening can improve the vibration amplitude of the sieve mesh, thereby improving the fluidity of the material on the sieve surface, making it easier for fine particles to pass through the sieve holes, improving the screening efficiency, and helping to reduce the chance of sieve hole blockage.

[0017] 3. The movement amplitude of the screening movement can be adjusted according to different screening materials. By reasonably adjusting the screening movement amplitude, the efficiency and stability of the screening process can be ensured.

[0018] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1Schematic diagram of the first perspective according to an embodiment of the present application;

[0021] Figure 2 Schematic diagram of the second perspective according to an embodiment of the present application;

[0022] Figure 3 Schematic cross-sectional view of the screening box according to an embodiment of the present application;

[0023] Figure 4 Schematic diagram of a partial view according to an embodiment of the present application;

[0024] Figure 5 Schematic diagram of the transmission mechanism according to an embodiment of the present application;

[0025] Figure 6 Schematic diagram of the driving mechanism according to an embodiment of the present application;

[0026] Figure 7 Schematic diagram of the installation of the follower according to an embodiment of the present application;

[0027] Figure 8 Schematic diagram of the movement trajectory of the driving block according to an embodiment of the present application;

[0028] Figure 9 Schematic exploded view of the lead screw according to an embodiment of the present application.

[0029] In the figure: 1. Screening box, 101. Screening plate, 102. Feed pipe, 2. Support frame, 201. Positioning block, 3. Motor, 4. Driving mechanism, 401. Rotating disk, 402. Driving block, 403. Follower, 404. Connecting frame, 405. Limiting rod, 406. Lead screw, 5. Transmission mechanism, 501. First transmission rod, 502. First bevel gear, 503. Second bevel gear, 504. Third bevel gear, 505. Fourth bevel gear, 506. Second transmission rod, 507. Fifth bevel gear, 508. Sixth bevel gear, 6. Sealing plate. Detailed implementation manners

[0030] As Figures 1 to 9 shown, a hazardous waste screening device includes:

[0031] A screening box 1 with two screening plates 101 provided inside;

[0032] A support frame 2 for main support;

[0033] A motor 3 installed on the support frame 2 for providing driving force;

[0034] Two groups of driving mechanisms 4 symmetrically distributed on both sides of the screening box 1 for driving the screening box 1 to perform reciprocating motion;

[0035] A single group of driving mechanisms 4 includes:

[0036] The rotating disk 401 is provided with positioning grooves thereon.

[0037] The driving block 402 is slidably arranged in the positioning groove.

[0038] The driven member 403 is provided with a straight groove opening tangent to the driving block 402 thereon.

[0039] The connecting frame 404 has one end mounted on the driven member 403 and the other end connected to the screening box 1.

[0040] The transmission mechanism 5 is arranged on the support frame 2 and is used to connect the motor 3 to drive the drive mechanism 4.

[0041] Further, as Figure 5 shown, the transmission mechanism 5 includes:

[0042] The first transmission rod 501 is provided with a first bevel gear 502 thereon. One end of the first bevel gear 502 meshes with a second bevel gear 503, and one end of the second bevel gear 503 is connected to the output end of the motor 3.

[0043] Both sides of the first transmission rod 501 are provided with third bevel gears 504, and one end of each third bevel gear 504 meshes with a fourth bevel gear 505.

[0044] The second transmission rod 506 has one end provided with a fifth bevel gear 507 and the other end connected to the fourth bevel gear 505.

[0045] One end of the fifth bevel gear 507 meshes with a sixth bevel gear 508, and the sixth bevel gear 508 is mounted on the rotating disk 401.

[0046] Further, as Figure 3 shown, the two screening plates 101 are inclinedly installed and are distributed vertically. The aperture size of the screening plate 101 at the lower position is smaller than that of the screening plate 101 at the upper position, corresponding to two different levels of screening, namely primary and secondary screening.

[0047] Further, as Figure 3 shown, the screening box 1 is provided with a feed pipe 102, and a valve is arranged on the feed pipe 102. The setting of the valve is used to control the opening and closing of the feed pipe 102.

[0048] The screening box 1 is provided with three discharge slots distributed vertically. The position of the upper discharge slot corresponds to the upper screening plate 101 and is used to discharge the waste remaining on the screening plate 101 at that place. The position of the middle discharge slot corresponds to the lower screening plate 101 and is used to discharge the waste remaining on the screening plate 101 at that place. The lower discharge slot is used to discharge the waste sifted through the lower screening plate 101.

[0049] Three sealing plates 6 are detachably arranged on the screening plate 101 to seal the three discharge grooves respectively.

[0050] Furthermore, a round hole is formed in the support frame 2, and the rotating disc 401 is rotatably arranged in the round hole;

[0051] A positioning block 201 is fixedly arranged on the support frame 2, and a limiting groove is formed in the positioning block 201.

[0052] Furthermore, a first support block is installed on the support frame 2, and the first transmission rod 501 is rotatably arranged in the first support block;

[0053] Second support blocks are installed at both ends of the support frame 2, and the second transmission rod 506 is rotatably arranged in the second support blocks.

[0054] Furthermore, connection holes are formed at both ends of the positioning groove;

[0055] A limiting rod 405 is installed on the driven member 403, and the limiting rod 405 is slidably arranged in the limiting groove. The limiting rod 405 cooperates with the limiting groove to limit the movement track of the driven member 403.

[0056] Furthermore, the driving mechanism 4 further includes a lead screw 406. The lead screw 406 is rotatably arranged in the connection hole, the driving block 402 is threadedly connected to the lead screw 406, and an operating rod is fixedly arranged at one end of the lead screw 406;

[0057] The lead screw 406 is provided for adjusting the position of the driving block 402 in the positioning groove, so as to match different screening strokes.

[0058] A hazardous waste screening device has the following working principle:

[0059] 1); Feeding is carried out through the feeding pipe 102. After the feeding is completed, the feeding pipe 102 is closed through a valve;

[0060] The motor 3 drives the second bevel gear 503, thereby driving the meshing first bevel gear 502 to rotate. The first bevel gear 502 drives the first transmission rod 501. The first transmission rod 501 drives the third bevel gears 504 at both ends thereof, drives the meshing fourth bevel gears 505. The fourth bevel gears 505 drive the second transmission rod 506. The second transmission rod 506 drives the fifth bevel gear 507, drives the meshing sixth bevel gear 508, thereby driving the rotating disc 401 to rotate. The rotating disc 401 drives the driving block 402 to move. The driving block 402 drives the driven member 403 to move under the limitation of the limiting rod 405 and the limiting groove. The driven member 403 drives the connecting frame 404, thereby driving the screening box 1 to move up and down reciprocally for screening.

[0061] 2); When it is necessary to adjust the movement stroke of the screening box 1, rotate the operating rod to drive the lead screw 406 to rotate. The lead screw 406 drives the driving block 402 to slide under the limitation of the positioning groove, thereby changing the movement track of the driving block 402 driven by the rotating disk 401 (the track is a circle with different diameters, which can be referred to Figure 8 ), thereby changing the stroke of the screening box 1 during movement to match different screening

[0062] Note: Different materials require different screening movement amplitudes. For example:

[0063] Particle size distribution:

[0064] Coarser materials: Coarser materials usually require a larger screening movement amplitude to ensure that the materials can smoothly pass through the sieve holes and improve the screening efficiency;

[0065] Finer materials: Finer materials may require a smaller screening movement amplitude to reduce the jumping phenomenon of the materials and improve the screening accuracy;

[0066] Density:

[0067] Materials with a larger density: Materials with a larger density may require a larger screening movement amplitude to overcome the influence of gravity and make it easier for the materials to pass through the sieve holes;

[0068] Materials with a smaller density: Materials with a smaller density may require a smaller screening movement amplitude to reduce the jumping phenomenon of the materials and improve the screening accuracy;

[0069] Shape:

[0070] Materials with irregular shapes: Materials with irregular shapes may require a larger screening movement amplitude to help them pass through the sieve holes;

[0071] Materials with regular shapes: Materials with regular shapes may require a smaller screening movement amplitude to reduce the jumping phenomenon of the materials and improve the screening accuracy;

[0072] Humidity:

[0073] Materials with a higher humidity: Materials with a higher humidity may require a larger screening movement amplitude to help disperse the particles and reduce the adhesion between the materials.

Claims

1. A hazardous waste screening device, characterized in that: include: A screening box having two screening plates disposed therein; Support frame, used as the main support; A motor, mounted on the support frame, for providing driving force; Two sets of driving mechanisms are symmetrically distributed on both sides of the screening box, and are used to drive the screening box to reciprocate; A single drive mechanism includes: A rotating disk having a positioning groove thereon; A driving block is slidably arranged in the positioning groove; A follower having a straight slot tangent to the driving block; A connecting frame, one end of which is mounted on the follower and the other end is connected to the screening box; The transmission mechanism is arranged on the support frame and is used to connect the motor to drive the drive mechanism.

2. A hazardous waste screening device according to claim 1, characterized in that: The transmission mechanism comprises: A first transmission rod, on which a first bevel gear is mounted, one end of the first bevel gear is meshed with a second bevel gear, and one end of the second bevel gear is connected to an output end of the motor; A third bevel gear is installed on both sides of the first transmission rod, and a fourth bevel gear is meshed with one end of the third bevel gear; A second transmission rod, one end of which is provided with a fifth bevel gear, and the other end of which is connected to the fourth bevel gear; One end of the fifth bevel gear is meshed with a sixth bevel gear, and the sixth bevel gear is mounted on the rotating disk.

3. A hazardous waste screening device according to claim 1, characterized in that: The two screening plates are installed obliquely and distributed up and down, and the sieve hole specifications of the screening plate located below are smaller than the sieve hole specifications of the screening plate located above.

4. A hazardous waste screening device according to claim 1, characterized in that: A feed pipe is installed on the screening box, and a valve is provided on the feed pipe; The screening box is provided with three discharge troughs distributed up and down; The screening plate is provided with three detachable sealing plates for sealing the three discharge troughs respectively.

5. The hazardous waste screening device according to claim 1, characterized in that: The support frame is provided with a circular hole, and the rotating disk is rotatably arranged in the circular hole; A positioning block is fixedly provided on the support frame, and a limiting groove is provided on the positioning block.

6. A hazardous waste screening device according to claim 2, characterized in that: A first support block is mounted on the support frame, and the first transmission rod is rotatably disposed in the first support block; Second support blocks are installed at both ends of the support frame, and the second transmission rod is rotatably arranged in the second support block.

7. A hazardous waste screening device according to claim 5, characterized in that: Both ends of the positioning groove are provided with connection holes; A limiting rod is installed on the driven member, and the limiting rod is slidably arranged in the limiting groove.

8. A hazardous waste screening device according to claim 7, characterized in that: The driving mechanism also includes a screw rod, which is rotatably arranged in the connecting hole, and the driving block is threadedly connected to the screw rod, and an operating rod is fixedly arranged at one end of the screw rod.

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