A pre-treatment device for incineration residues before kiln

Abstract

The application discloses a pretreatment device for incineration residues before entering a kiln, and relates to the technical field of residue pretreatment. The application comprises a box body, which is provided with a feeding port, a treatment cavity and a discharging port in sequence from top to bottom. The treatment cavity is provided with two discharging ports distributed in an up-down mode. An inclined sieve plate corresponding to the discharging ports is arranged in the treatment cavity. The mesh size of the upper inclined sieve plate is larger than that of the lower inclined sieve plate. The opposite sides of the treatment cavity are both connected with a collecting cavity. Two magnetic attraction mechanisms are arranged in the treatment cavity and distributed in an up-down mode. The two magnetic attraction mechanisms can adsorb and strip metal parts to the collecting cavity during the falling of the residues. In use, the residues, large impurities, metal parts and small impurities can be separated through the synergistic mode of double screening and magnetic separation, and the synergistic removal effect is improved.

Description

Technical Field

[0001] This application relates to the field of residue pretreatment technology, specifically to a pretreatment device for incineration residue before it enters the kiln. Background Technology

[0002] The residue produced after the incineration of industrial and municipal solid waste is complex in composition, often containing unburned large pieces of material and metal parts. Currently, many treatment processes directly feed these residues into rotary kilns for secondary processing such as high-temperature melting. However, direct feeding into the kiln presents significant problems: First, the metal parts in the residue are hard and can easily scratch or wear the refractory kiln lining as they roll with the material inside the kiln, shortening the kiln's lifespan and increasing maintenance costs. Second, unburned large pieces of debris may affect the overall incineration efficiency due to incomplete combustion, and may even cause ring formation and blockage inside the kiln due to the molten material adhering to the kiln wall, seriously affecting the continuity and stability of production. While existing technologies employ simple screens or magnetic separators for pretreatment, their functions are limited; they can only separate magnetic metals or screen materials of specific particle sizes. They are not effective in removing magnetic metals and large impurities in a coordinated manner. Therefore, a pretreatment device for incineration residue before it enters the kiln is proposed. Utility Model Content

[0003] The purpose of this application is to address the technical problem that while existing technologies employ simple screens or magnetic separators for pretreatment, these methods are limited in function, either only capable of separating magnetic metals or only capable of screening materials of a specific particle size, resulting in poor performance in the combined removal of magnetic metals and large impurities. This application provides a pretreatment device for incineration residue before it enters the kiln.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution: A pretreatment device for incineration residue before it enters the kiln includes: The box has an inlet, a processing chamber and an outlet connected vertically. The processing chamber has two discharge ports distributed vertically. The processing chamber is equipped with inclined screen plates of equal number and corresponding to the discharge ports. The screen aperture of the upper inclined screen plate is larger than that of the lower inclined screen plate. The opposite sides of the processing chamber are connected to a collection chamber. Two magnetic attraction mechanisms are installed inside the processing chamber and distributed vertically, which can attract and peel metal parts into the collection chamber during the fall of the residue.

[0005] Furthermore, the housing is provided with a Y-shaped collection channel that communicates with both collection chambers.

[0006] Furthermore, the box body is equipped with a crushing chamber, the crushing chamber is equipped with a crushing mechanism, and the box body is equipped with a guiding mechanism that can guide the debris discharged from the two discharge ports into the crushing chamber.

[0007] Furthermore, the crushing mechanism includes two crushing rollers, a gear pair, and a crushing motor. The two crushing rollers are rotatably mounted in the crushing chamber and are connected by the gear pair. The crushing motor is mounted on the housing and its output shaft is connected to one of the crushing rollers.

[0008] Furthermore, the guiding mechanism includes a guide cylinder, which has an outlet and two inlets. The two inlets are respectively connected to two discharge ports, and the outlet is connected to the crushing chamber.

[0009] Furthermore, the inclined screen plates are slidably disposed within the processing chamber and a spring is provided between them. The two inclined screen plates are driven by a drive mechanism to slide synchronously in one direction.

[0010] Furthermore, the drive mechanism includes a drive motor, a chain and sprocket assembly, two drive shafts, two cams, and two rollers. Both drive shafts are rotatably mounted inside the processing chamber. The two cams are respectively mounted on the two drive shafts. The two rollers are respectively rotatably mounted on the two inclined screen plates. The drive motor is mounted on the housing and its output shaft is connected to one of the drive shafts. The two drive shafts are connected by a chain and sprocket assembly.

[0011] Furthermore, the magnetic attraction mechanism includes a cylinder push rod, a movable plate, multiple fixed rods, and multiple magnetic rings. The cylinder push rod is mounted on the housing and its movable end is connected to the movable plate. The multiple fixed rods are all mounted on the movable plate and slide through the housing. The multiple magnetic rings are respectively mounted on the multiple fixed rods.

[0012] The beneficial effects of this application are as follows: When in use, this application can separate residues, large debris, metal parts and small debris through the synergistic method of dual screening and magnetic separation, thereby improving the synergistic removal effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural view of this application; Figure 2 This is a three-dimensional sectional view of this application; Figure 3 This application Figure 2 Enlarged view of point A in the middle; Figure 4 This is a three-dimensional sectional view from another perspective of this application; Figure 5 This is another perspective sectional view of this application; Figure 6 This application Figure 5 Enlarged view of point B in the middle; Figure 7 This application Figure 5 Enlarged view of point C in the middle; Figure 8 This application Figure 5 Enlarged view of point D in the middle.

[0014] Reference numerals: 1. Box body; 2. Feed inlet; 3. Processing chamber; 4. Discharge outlet; 5. Discharge port; 6. Inclined screen plate; 7. Collection chamber; 8. Collection channel; 9. Crushing chamber; 10. Crushing roller; 11. Gear pair; 12. Crushing motor; 13. Guide cylinder; 14. Outlet; 15. Inlet; 16. Spring; 17. Drive motor; 18. Chain and sprocket assembly; 19. Drive shaft; 20. Cam; 21. Roller; 22. Cylinder push rod; 23. Moving plate; 24. Fixed rod; 25. Magnetic ring. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0016] like Figures 1-7 As shown, one embodiment of this application discloses a pretreatment device for incineration residue before it enters the kiln, comprising: The box 1 has an inlet 2, a processing chamber 3, and an outlet 4 connected vertically. The box 1 is vertical. The bottom of the processing chamber 3 is sloping with the lower part facing the outlet 4 to facilitate the smooth discharge of residue. The processing chamber 3 has two discharge ports 5 distributed vertically. The processing chamber 3 is equipped with inclined screen plates 6 of equal number and corresponding to the discharge ports 5. The two inclined screen plates 6 are distributed vertically. The screen aperture of the upper inclined screen plate 6 is larger than that of the lower inclined screen plate 6. Large debris in the residue cannot pass through the upper inclined screen plate 6, and metal parts and smaller debris in the residue cannot pass through the lower inclined screen plate 6. The opposite sides of the processing chamber 3 are connected to a collection chamber 7. The collection chamber 7 has a collection port. The bottom of the collection chamber 7 is sloping with the lower part facing the collection port. Two magnetic attraction mechanisms are both set in the processing chamber 3 and distributed vertically. They can attract and peel metal parts into the collection chamber 7 during the fall of the residue. The magnetic attraction mechanism has two working states: attraction state and peeling state. Initially, both magnetic suction mechanisms are in the suction state. During use, the residue is fed into the feed inlet 2 and falls into the processing chamber 3. During this process, large debris in the residue is first screened by the inclined screen plate 6 above. The large debris rolls down along the inclined direction of the screen plate 6 and is discharged through the discharge port 5 above. The residue continues to fall, and the magnetic suction mechanisms attract metal parts during this descent. One magnetic suction mechanism switches to the peeling state, while the other metal part remains in the suction state, peeling the previously attracted metal part into the collection chamber 7. Then, the magnetic suction mechanism in the peeling state switches back to the collecting state. When the magnetic attraction mechanism is switched from the adsorption state to the peeling state, it is repeated to achieve uninterrupted operation. The metal parts are discharged through the collection port of the collection chamber 7, and then the smaller impurities in the residue are screened by the inclined screen plate 6 below. The smaller impurities roll down along the inclined direction of the inclined screen plate 6 and are discharged through the discharge port 5 below. Finally, the residue continues to fall and is discharged through the discharge port 4, so as to separate the residue, large impurities, metal parts and small impurities. The synergistic removal effect is good. The design of the two inclined screen plates 6 can also prevent large impurities from falling directly on the magnetic attraction mechanism, which plays a protective role. In summary, when used, this application can separate residues, large debris, metal parts, and small debris through a combined method of dual screening and magnetic separation, thereby improving the synergistic removal effect.

[0017] like Figures 1-4 As shown, a further technical solution of this application is disclosed. The housing 1 is provided with a collection channel 8 that is Y-shaped and connected to both collection chambers 7. The collection channel 8 is vertical and fixed on the housing 1. The collection channel 8 has two upper openings and one lower opening. The two upper openings are respectively connected to the collection openings of the two collection chambers 7. Referring to the above, during use, the metal parts in the two collection chambers 7 can be collected through the collection channel 8, so as to facilitate the centralized processing of the metal parts and make it more convenient to use.

[0018] like Figures 2-8 As shown, a further technical solution of this application is disclosed. The box 1 is constructed with a crushing chamber 9, which is located below the processing chamber 3. A crushing mechanism is provided in the crushing chamber 9, which can crush the debris. A guiding mechanism is provided on the box 1, which can guide the debris discharged from the two discharge ports 5 into the crushing chamber 9. Referring to the above, during use, the debris discharged from the two discharge ports 5 is guided into the crushing chamber 9 by the guiding mechanism, and then the debris is crushed by the crushing mechanism to finally obtain residue with relatively uniform particle size and no debris, which is discharged through the bottom of the crushing chamber 9 for subsequent processing and to make it more convenient to use.

[0019] like Figures 2-5As shown, the specific structure of the crushing mechanism of this application is disclosed. The crushing mechanism includes two crushing rollers 10, a gear pair 11 and a crushing motor 12. The axis of the crushing rollers 10 is in the horizontal direction. Both crushing rollers 10 are rotatably arranged in the crushing chamber 9 and are connected by transmission through the gear pair 11. The gear pair 11 includes two meshing gears. The two gears are coaxially fixed on the two crushing rollers 10 respectively. The crushing motor 12 is arranged on the housing 1 and its output shaft is connected to one of the crushing rollers 10. The crushing motor 12 is fixed on the housing 1. Referring to the above, when in use, the crushing motor 12 is turned on, the output shaft rotates, which drives one of the crushing rollers 10 to rotate, and through the gear pair 11 drives the other crushing roller 10 to rotate synchronously in the opposite direction. The two synchronously rotating crushing rollers 10 together crush the debris.

[0020] like Figures 1-8 As shown, the specific structure of the guiding mechanism of this application is disclosed. The guiding mechanism includes a guide cylinder 13, which is vertical and fixed on the box 1. The guide cylinder 13 is constructed with an outlet 14 and two inlets 15. The two inlets 15 are respectively connected to two discharge ports 5, and the outlet 14 is connected to the crushing chamber 9. Referring to the above, during use, the debris discharged from the discharge port 5 rolls into the guide cylinder 13 through the inlet 15, and then rolls into the crushing chamber 9 along the outlet 14, so as to guide the debris discharged from the two discharge ports 5 into the crushing chamber 9.

[0021] like Figure 7 As shown, a further technical solution of this application is disclosed. The inclined screen plate 6 is slidably disposed in the processing chamber 3 and a spring 16 is disposed between the two. The inclined screen plate 6 slides in the vertical direction, and the spring 16 is in the vertical direction and its two ends are fixedly connected to the inclined screen plate 6 and the processing chamber 3 respectively. The two inclined screen plates 6 are driven to slide synchronously in one direction by a drive mechanism. Synchronous reverse sliding means synchronous upward sliding. Referring to the above, in the initial state, both inclined screen plates 6 are at their lowest positions, and both springs 16 are in a compressed state. During use, the drive mechanism drives the two inclined screen plates 6 to slide synchronously upward to the highest position, and both springs 16 are stretched. Afterward, both springs 16 return to their natural state, and the two inclined screen plates 6 slide together to the lowest position, and both springs 16 are compressed. This process is repeated to achieve synchronous reciprocating sliding of the two inclined screen plates 6, generating vibration, improving screening efficiency while preventing clogging.

[0022] like Figure 7As shown, the specific structure of the drive mechanism of this application is disclosed. The drive mechanism includes a drive motor 17, a chain and sprocket assembly 18, two drive shafts 19, two cams 20, and two rollers 21. The two drive shafts 19 are rotatably disposed in the processing chamber 3. The two drive shafts 19 are distributed vertically and their axes are horizontal. The two cams 20 are respectively disposed on the two drive shafts 19 and are coaxially fixed on the drive shafts 19. The two rollers 21 are respectively rotatably disposed on the two inclined screen plates 6 and their axes are horizontal. The drive motor 17 is disposed on the housing 1 and its output shaft is connected to one of the drive shafts 19. The drive motor 17 is fixed on the housing 1. The two drive shafts 19 are connected by a chain and sprocket assembly 18. The chain and sprocket assembly 18 includes two sprockets and a chain. The two sprockets are coaxially fixed on the two drive shafts 19, and the chain is wound around the two sprockets. Referring to the above, in the initial state, both inclined screen plates 6 are at their lowest positions, and the two rollers 21 roll and overlap with the circumferential surfaces of the two cams 20 respectively. During use, the drive motor 17 is activated, and the output shaft rotates, driving the two drive shafts 19 to rotate synchronously through the chain and sprocket assembly 18. The two cams 20 rotate together with the two drive shafts 19 respectively. When the cam 20 rotates one revolution, the rollers 21 roll and overlap with the circumferential surface and the protruding surface in turn. When the rollers 21 roll and overlap with the protruding surface, they will force the rollers 21 and the inclined screen plates 6 to move upward together to the highest position. Conversely, when the rollers 21 roll and overlap with the circumferential surface, the rollers 21 and the inclined screen plates 6 move downward together to the lowest position, so as to drive the two inclined screen plates 6 to slide synchronously in one direction.

[0023] like Figures 2-3 As shown, the specific structure of the magnetic attraction mechanism of this application is disclosed. The magnetic attraction mechanism includes a cylinder push rod 22, a movable plate 23, multiple fixed rods 24 and multiple magnetic rings 25. The cylinder push rod 22 is disposed on the housing 1 and its movable end is connected to the movable plate 23. The cylinder push rod 22 is horizontal and fixed on the housing 1. The multiple fixed rods 24 are all disposed on the movable plate 23 and slide through the housing 1. The multiple fixed rods 24 are all horizontally fixed on the movable plate 23 and are evenly distributed. The multiple magnetic rings 25 are respectively disposed on the multiple fixed rods 24 and are fixed on the fixed rods 24. Referring to the above, in the initial state, the movable end of the cylinder push rod 22 extends, and the moving plate 23, the fixed rod 24, and the magnetic ring 25 are all in the initial position. The magnetic ring 25 is located on the path of the residue falling, which is the adsorption state. When the residue falls, the metal part is attached to the magnetic ring 25 by the magnetic adsorption effect of the magnetic ring 25. Then, by retracting the movable end of the cylinder push rod 22, the moving plate 23, the fixed rod 24, the magnetic ring 25, and the metal part can be moved together to the limit position. During this process, the metal part is peeled away from the magnetic ring 25 by the box 1 and falls into the collection chamber 7, which is the peeling state. This achieves the adsorption and peeling of the metal part into the collection chamber 7 during the fall of the residue.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pretreatment device for incineration residue before it enters the kiln, characterized in that, include: The box (1) has an inlet (2), a processing chamber (3) and an outlet (4) connected vertically. The processing chamber (3) has two discharge ports (5) distributed vertically. The processing chamber (3) is equipped with an inclined screen plate (6) that is equal in number and corresponding to the discharge port (5). The screen aperture of the upper inclined screen plate (6) is larger than that of the lower inclined screen plate (6). The opposite sides of the processing chamber (3) are connected to a collection chamber (7). Two magnetic attraction mechanisms are set in the processing chamber (3) and distributed vertically, which can attract and peel the metal parts into the collection chamber (7) during the fall of the residue.

2. The pretreatment device for incineration residue before it enters the kiln according to claim 1, characterized in that, The box (1) is provided with a Y-shaped collection channel (8) that is connected to both collection chambers (7).

3. The pretreatment device for incineration residue before it enters the kiln according to claim 1, characterized in that, The box (1) has a crushing chamber (9) inside, and a crushing mechanism is provided inside the crushing chamber (9). The box (1) is provided with a guiding mechanism, which can guide the debris discharged from the two discharge ports (5) into the crushing chamber (9).

4. The pretreatment device for incineration residue before it enters the kiln according to claim 3, characterized in that, The crushing mechanism includes two crushing rollers (10), a gear pair (11) and a crushing motor (12). The two crushing rollers (10) are rotatably arranged in the crushing chamber (9) and are connected by the gear pair (11). The crushing motor (12) is arranged on the housing (1) and its output shaft is connected to one of the crushing rollers (10).

5. The pretreatment device for incineration residue before it enters the kiln according to claim 3, characterized in that, The guiding mechanism includes a guide cylinder (13), which has an outlet (14) and two inlets (15). The two inlets (15) are connected to two discharge ports (5) respectively, and the outlet (14) is connected to the crushing chamber (9).

6. The pretreatment device for incineration residue before it enters the kiln according to claim 1, characterized in that, The inclined screen plate (6) is slidably disposed in the processing chamber (3) and a spring (16) is provided between them. The two inclined screen plates (6) are driven to slide synchronously in one direction by a drive mechanism.

7. The pretreatment device for incineration residue before it enters the kiln according to claim 6, characterized in that, The drive mechanism includes a drive motor (17), a chain and sprocket assembly (18), two drive shafts (19), two cams (20), and two rollers (21). The two drive shafts (19) are rotatably disposed in the processing chamber (3). The two cams (20) are respectively disposed on the two drive shafts (19). The two rollers (21) are respectively rotatably disposed on the two inclined screen plates (6). The drive motor (17) is disposed on the housing (1) and its output shaft is connected to one of the drive shafts (19). The two drive shafts (19) are connected by a chain and sprocket assembly (18).

8. The pretreatment device for incineration residue before it enters the kiln according to claim 1, characterized in that, The magnetic attraction mechanism includes a cylinder push rod (22), a movable plate (23), multiple fixed rods (24) and multiple magnetic rings (25). The cylinder push rod (22) is mounted on the housing (1) and its movable end is connected to the movable plate (23). The multiple fixed rods (24) are all mounted on the movable plate (23) and slide through the housing (1). The multiple magnetic rings (25) are respectively mounted on the multiple fixed rods (24).

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