Slag screening device for household garbage incineration power plant

Abstract

The utility model belongs to the field of waste incineration treatment, particularly relates to a slag screening device for a household waste incineration power plant, and aims to solve the problems that part of foreign matters are stuck in screening holes and are difficult to thoroughly clean in the mode in the prior art. The following scheme is provided: the slag screening device comprises a bracket and a roller rotationally arranged at the top of the bracket, a plurality of groups of screen holes are formed in the surface of the roller, and a plurality of screen holes are formed in each group; the driving mechanism is used for driving the roller to roll, and the driving mechanism is arranged at the top of the support; the cleaning mechanism is used for cleaning foreign matters clamped in the screen holes, slag is directly put into the roller and then continuously rolls, so that small-size slag can directly fall out through the screen holes to be screened when the slag moves, regular cleaning operation can be conveniently carried out through the cleaning mechanism, the foreign matters clamped in the screen holes are effectively removed, and the cleaning efficiency is improved. And the normal screening work is prevented from being influenced by excessive foreign matters.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, and in particular to a slag screening device for municipal solid waste incineration power plants. Background Technology

[0002] The slag produced during the incineration of municipal solid waste has a complex composition, containing a large amount of recyclable materials such as metals, glass, and ceramics, as well as non-combustible ash. In the pretreatment and metal recovery stages of the slag, devices such as drum screens are used for screening to separate large materials (such as coarse stones, slag, plastic bags, and cloth) from fine particles.

[0003] Existing drum screens are typically cleaned using rotating brushes or belts, but some foreign objects can become stuck in the screen holes, making thorough cleaning difficult. Therefore, a screening device is needed that can simultaneously perform normal slag screening and conveniently and effectively clean the screen holes. Utility Model Content

[0004] The purpose of this invention is to solve the problem that some foreign objects can get stuck in the screen holes in the existing technology, and to propose a slag screening device for municipal solid waste incineration power plants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A slag screening device for a municipal solid waste incineration power plant includes a support frame and a drum rotatably mounted on top of the support frame. The surface of the drum has multiple sets of screen holes, and each set has multiple screen holes.

[0007] A drive mechanism for driving the roller to roll is provided on the top of the support.

[0008] A cleaning mechanism is used to clean foreign objects stuck inside the screen holes. The cleaning mechanism is set on the top of the support and includes multiple cleaning rods. Multiple mounting brackets are fixedly set on the top of the support. The same sliding plate is slidably set inside the multiple mounting brackets. The multiple cleaning rods are all fixedly set on the bottom of the sliding plate, and the multiple cleaning rods respectively cooperate with multiple screen holes in the same group.

[0009] In one possible design, the cleaning mechanism further includes an eccentric rod, a fixed plate is fixedly mounted on the top of the slide plate, a horizontal hole is opened on one side of the fixed plate, a fixed frame is fixedly mounted on the top of the bracket, a rotating rod is rotatably mounted on one side of the fixed frame, a turntable is fixedly mounted on one end of the rotating rod, one end of the eccentric rod is fixedly mounted on one side of the turntable, and the other end of the eccentric rod is located inside the horizontal hole.

[0010] In one possible design, a mounting plate is fixedly installed on the top of the fixed plate, and a second servo motor is fixedly installed on the inner wall of the top of the mounting plate. One end of the rotating rod rotatably passes through the fixed frame and is fixedly installed with the output shaft of the second servo motor.

[0011] In one possible design, a single-tooth gear is fixedly sleeved on the outer wall of the rotating rod, and a transmission gear is fixedly sleeved on the outer wall of the roller, with the single-tooth gear meshing with the transmission gear.

[0012] In one possible design, the drive mechanism includes two rotating shafts, and multiple mounting seats are fixedly provided on both sides of the top of the bracket. The rotating shafts are rotatably disposed within the multiple mounting seats on the same side, and multiple tires are fixedly fitted on the outer wall of the rotating shafts. The outer walls of the tires are in contact with the outer wall of the roller.

[0013] In one possible design, the drive mechanism further includes a first servo motor, which is fixedly mounted on the top of the bracket. The outer wall of the output shaft of the first servo motor and the outer wall of one of the rotating shafts are both fixedly fitted with sprockets, and the outer walls of the two sprockets are fitted with the same chain.

[0014] In this application, during actual use, a first servo motor is driven. This servo motor drives a rotating shaft via a sprocket and chain, which in turn drives a tire to rotate. This, in turn, causes a drum that is in contact with the tire to roll. When slag is fed into the drum, it will roll, and slag smaller than the screen aperture will fall directly off, while the remaining slag will continue to roll until it is discharged through the other end of the drum, thus achieving screening. When it is necessary to periodically clean the drum to remove foreign objects stuck inside the screen aperture, a second servo motor is driven. This second servo motor drives a rotating rod to rotate, which in turn drives an eccentric rod to rotate via a turntable. The eccentric rod, when rotating, will... The internal movement of the moving horizontal hole causes the eccentric rod to rotate upwards, which in turn moves the fixed plate upwards. Conversely, when the eccentric rod rotates downwards, it moves the fixed plate downwards. This means that when the rotating rod rotates once, the fixed plate moves up and down once. The fixed plate, through the sliding plate, drives the cleaning rod to make the same movement. When the cleaning rod moves downwards, it pushes out the foreign objects stuck inside the screen holes, thus cleaning them. Furthermore, when the rotating rod rotates, it drives the single-tooth gear to rotate. Each time the rotating rod rotates once, it drives the transmission gear to rotate, which in turn drives the drum to rotate at a certain angle. This allows the drum to automatically rotate after cleaning one set of screen holes, thus cleaning the next set of screen holes.

[0015] In this utility model, the slag screening device for municipal solid waste incineration power plants can remove foreign objects stuck inside the screen holes through the cleaning component, thus avoiding the phenomenon that a large number of foreign objects will get stuck inside and affect the screening efficiency after long-term use.

[0016] In this invention, when in use, the slag is directly fed into the inside of the drum. Through continuous rolling, smaller slags will fall directly through the screen holes for screening as they move. The cleaning mechanism allows for convenient periodic cleaning, effectively removing foreign objects stuck inside the screen holes and preventing excessive foreign objects from affecting normal screening operations. Attached Figure Description

[0017] Figure 1 This is a left-side structural schematic diagram of a slag screening device for a municipal solid waste incineration power plant proposed in this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of the structure of section A;

[0019] Figure 3 This is a right-side structural schematic diagram of a slag screening device for a municipal solid waste incineration power plant proposed in this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure of section B.

[0021] In the diagram: 1. Support frame; 2. Servo motor No. 1; 3. Roller; 4. Shaft; 5. Tire; 6. Mounting frame; 7. Screen hole; 8. Slide plate; 9. Cleaning rod; 10. Fixing frame; 11. Fixing plate; 12. Horizontal hole; 13. Eccentric rod; 14. Turntable; 15. Rotating rod; 16. Mounting plate; 17. Servo motor No. 2; 18. Single tooth gear; 19. Transmission gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Reference Figure 1-2 A screening device includes: a support 1 and a roller 3 rotatably mounted on top of the support 1. The surface of the roller 3 has multiple sets of screen holes 7, each set having multiple screen holes. Slag is fed into the roller 3 through one end, so that smaller slag particles fall directly through the screen holes 7 as the roller rotates, while the remaining slag is discharged through the other end of the roller 3, thus achieving screening. A drive mechanism is located on top of the support 1 to drive the roller 3 to rotate. A cleaning mechanism is also located on top of the support 1 to clean foreign objects stuck inside the screen holes 7.

[0025] Specifically, the cleaning mechanism includes multiple cleaning rods 9. Multiple mounting brackets 6 are fixedly installed on the top of the support 1. A single sliding plate 8 is slidably mounted inside each mounting bracket 6. The cleaning rods 9 are all fixedly installed at the bottom of the sliding plate 8. When the sliding plate 8 moves downwards, the cleaning rods 9 at its bottom insert into the same set of screen holes 7, thereby pushing out foreign objects stuck inside for cleaning. The cleaning mechanism also includes an eccentric rod 13. A fixing plate 11 is fixedly installed on the top of the sliding plate 8. A horizontal hole 12 is opened on one side of the fixing plate 11. A fixing frame 10 is fixedly installed on the top of the support 1. A rotating rod 15 is rotatably mounted on one side of the fixing frame 10. A turntable 14 is fixedly installed at one end of the rotating rod 15. One end of the eccentric rod 13 is fixedly installed on one side of the turntable 14, and the other end of the eccentric rod 13 is located inside the horizontal hole 12, used to drive the sliding plate 8 and cleaning rods 9 to reciprocate, thereby cleaning foreign objects stuck inside the screen holes 7.

[0026] Furthermore, a mounting plate 16 is fixedly installed on the top of the fixed plate 11, and a second servo motor 17 is fixedly installed on the inner wall of the top of the mounting plate 16. One end of the rotating rod 15 rotates through the fixed frame 10 and is fixedly installed on the output shaft of the reducer of the second servo motor 17. The second servo motor 17 drives the rotating rod 15 to rotate, thereby driving the reciprocating motion of the sliding plate 8 and the cleaning rod 9. A single-tooth gear 18 is fixedly sleeved on the outer wall of the rotating rod 15, and a transmission gear 19 is fixedly sleeved on the outer wall of the roller 3, and the single-tooth gear 18 meshes with the transmission gear 19.

[0027] Specifically, when the roller 3 needs to be cleaned periodically to remove foreign objects stuck inside the screen holes 7, the second servo motor 17 is driven. The second servo motor 17 drives the rotating rod 15 to rotate. The rotating rod 15 drives the eccentric rod 13 to rotate through the turntable 14. When the eccentric rod 13 rotates, it will drive the interior of the transverse hole 12 to move. When the eccentric rod 13 rotates to the top, it will drive the fixed plate 11 to move upward. Conversely, when the eccentric rod 13 rotates to the bottom, it will drive the fixed plate 11 to move downward. So that when the rotating rod 15 rotates once, it will drive the fixed plate 11 to move up and down once. The fixed plate 11 drives the cleaning rod 9 to make the same movement through the slide plate 8. When the cleaning rod 9 moves downward, it will push out the foreign objects stuck inside the screen holes 7, thus cleaning them. When the rotating rod 15 rotates, it will drive the single-tooth gear 18 to rotate. Every time the rotating rod 15 rotates once, it will drive the transmission gear 19 to rotate, thus driving the roller 3 to rotate a certain angle. So that after cleaning a set of screen holes 7, it can automatically rotate to clean the next set of screen holes 7.

[0028] This application can be used in the field of waste incineration treatment, or in other fields applicable to this application.

[0029] Example 2

[0030] refer to Figure 3-4An improvement upon Embodiment 1: A slag screening device for municipal solid waste incineration power plants, applied to the field of waste incineration treatment, includes a drive mechanism comprising two rotating shafts 4. Multiple mounting seats are fixedly installed on both sides of the top of a support 1, and the rotating shafts 4 are rotatably mounted within these mounting seats on the same side. Multiple tires 5 are fixedly fitted onto the outer wall of the rotating shafts 4, with the outer walls of the tires 5 fitting against the outer wall of the roller 3. The drive mechanism also includes a primary servo motor 2, fixedly mounted on the top of the support 1. A sprocket is fixedly fitted onto the outer wall of the output shaft of the primary servo motor 2's reducer and the outer wall of one of the rotating shafts 4, and the outer walls of the two sprockets are fitted with the same chain.

[0031] Specifically, the servo motor 2 drives the sprocket and chain transmission, which in turn drives the shaft 4 to rotate. The tire 5 on the shaft 4 comes into contact with the outer wall of the roller 3 to generate friction, which drives the roller 3 to roll.

[0032] However, as is well known to those skilled in the art, the working principles and wiring methods of servo motor 2 and servo motor 17 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0033] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slag screening device for a municipal solid waste incineration power plant, characterized in that, include: The support (1) and the roller (3) rotatably disposed on the top of the support (1) have multiple sets of openings on the surface of the roller (3), and each set has multiple sieve holes (7). A drive mechanism for driving the roller (3) to roll is provided on the top of the support (1); The cleaning mechanism is used to clean foreign objects stuck inside the sieve holes (7). The cleaning mechanism is set on the top of the support (1). The cleaning mechanism includes multiple cleaning rods (9). Multiple mounting brackets (6) are fixedly set on the top of the support (1). The same sliding plate (8) is slidably set inside the multiple mounting brackets (6). The multiple cleaning rods (9) are all fixedly set on the bottom of the sliding plate (8), and the multiple cleaning rods (9) are respectively matched with multiple sieve holes (7) in the same group.

2. The slag screening device for municipal solid waste incineration power plants according to claim 1, characterized in that, The cleaning mechanism also includes an eccentric rod (13), a fixed plate (11) is fixedly installed on the top of the slide plate (8), a horizontal hole (12) is opened on one side of the fixed plate (11), a fixed frame (10) is fixedly installed on the top of the bracket (1), a rotating rod (15) is rotatably installed on one side of the fixed frame (10), a turntable (14) is fixedly installed at one end of the rotating rod (15), one end of the eccentric rod (13) is fixedly installed on one side of the turntable (14), and the other end of the eccentric rod (13) is located inside the horizontal hole (12).

3. The slag screening device for municipal solid waste incineration power plants according to claim 2, characterized in that, A mounting plate (16) is fixedly installed on the top of the fixed plate (11), and a second servo motor (17) is fixedly installed on the inner wall of the top of the mounting plate (16). One end of the rotating rod (15) rotates through the fixed frame (10) and is fixedly installed with the output shaft of the second servo motor (17).

4. A slag screening device for a municipal solid waste incineration power plant according to claim 3, characterized in that, The outer wall of the rotating rod (15) is fixedly fitted with a single toothed gear (18), and the outer wall of the roller (3) is fixedly fitted with a transmission gear (19), and the single toothed gear (18) meshes with the transmission gear (19).

5. A slag screening device for a municipal solid waste incineration power plant according to claim 1, characterized in that, The drive mechanism includes two rotating shafts (4), and multiple mounting seats are fixedly provided on both sides of the top of the bracket (1). The rotating shafts (4) are rotatably disposed in multiple mounting seats on the same side, and multiple tires (5) are fixedly sleeved on the outer wall of the rotating shafts (4).

6. A slag screening device for a municipal solid waste incineration power plant according to claim 5, characterized in that, The outer wall of the tire (5) is in contact with the outer wall of the roller (3).

7. A slag screening device for a municipal solid waste incineration power plant according to claim 6, characterized in that, The drive mechanism also includes a first servo motor (2), which is fixedly mounted on the top of the bracket (1).

8. A slag screening device for a municipal solid waste incineration power plant according to claim 7, characterized in that, The outer wall of the output shaft of the first servo motor (2) and the outer wall of one of the rotating shafts (4) are both fixedly fitted with sprockets, and the outer walls of the two sprockets are fitted with the same chain.

Images