Waste incineration power generation slag screening device

Abstract

The utility model belongs to the field of material screening mechanical equipment, and discloses a waste incineration power generation slag screening device which comprises a shell, a feeding hopper is arranged on the shell, a first discharging port and a second discharging port are formed in the side, away from the feeding hopper, of the shell, and a screening box, a vibration exciter and a discharging track are installed in the shell. The screen box comprises a box body, a screen plate and a material bearing plate, a feeding port corresponding to the feeding hopper is formed in the box body, a discharging port is formed in the side, close to the first discharging port and the second discharging port, of the box body, the inclined screen plate and the material bearing plate are installed in the box body, and a hinged cylinder is arranged at the end, close to the feeding port, of the screen plate. The vibration grading incineration residue screening device is compact and reasonable in structural design, capable of screening incineration residues in a vibration grading mode, airtight, free of pollution, adjustable in screen plate, suitable for screening various materials of different types, convenient in screening parameter adjustment and wide in application range, and the vibration grading incineration residue screening device can be used for screening incineration residues in a vibration grading mode.

Description

Technical Field

[0001] This utility model relates to the field of material screening machinery and equipment, specifically a waste incineration power generation slag screening device. Background Technology

[0002] Incineration residue refers to the general term for slag, residual ash, boiler ash, and fly ash produced during the waste incineration process. The residue from municipal solid waste incineration plants mainly consists of two parts: slag produced by the incinerator and fly ash collected by the dust collector. Incineration ash contains a certain amount of heavy metals, which will pollute the environment if not properly treated. Furthermore, most incineration residue can be recycled and reused to produce lightweight aggregates, floor tiles, and wall tiles for building materials. It also has significant market potential in replacing traditional building fillers.

[0003] The sorting of incineration residue mainly utilizes the differences in the physical properties of its components. Various methods exist, with common ones including screening, gravity separation, magnetic separation, and magnetohydrodynamic separation. The residue can be mixed with clay to make red bricks, and coarsely crushed residue can be mixed with sand and cement in appropriate proportions to make concrete blocks and slabs, which are then pressed and steam-cured to obtain the finished products. Screened slag can generally be used as building material. It can be made into lightweight aggregate, floor tiles, and wall tiles. It also has significant market potential in replacing traditional building fillers.

[0004] Existing grading and screening devices are not suitable for screening incineration ash residue after waste incineration. Common grading and screening devices are used in scenarios such as grain, food, sand and gravel mines, and coal mines. Most of these screening devices are open-type screening devices with fixed screening materials. They are more polluting when used to screen incineration ash residue after waste incineration. Moreover, the composition of incineration ash residue after waste incineration is mostly different, and the screening materials are not fixed, requiring multiple adjustments to screening parameters. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a waste incineration power generation ash screening device, which solves the problems mentioned in the background art, such as the high pollution caused by screening incineration ash and the need for multiple adjustments of screening parameters.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a waste incineration power generation slag screening device, comprising a shell, a feeding hopper on the shell, a first discharge port and a second discharge port on the side of the shell away from the feeding hopper, and a screen box, a vibrator and a discharge track installed inside the shell.

[0009] Preferably, the screen box includes a box body, a screen plate and a material support plate. The box body has a feed inlet corresponding to the feed hopper. The box body has a discharge outlet on the side near the first discharge outlet and the second discharge outlet. The box body is equipped with an inclined screen plate and a material support plate. One end of the screen plate and the material support plate are placed below the feed inlet, and the other end extends through the discharge outlet.

[0010] Preferably, both the sieve plate and the material receiving plate are provided with a flared opening at the end near the discharge port.

[0011] Preferably, the screen plate has a hinged cylinder at one end near the feed inlet and an angle adjustment structure at one end near the discharge outlet, and a replaceable mesh plate is installed on the screen plate.

[0012] Preferably, the tilt adjustment structure includes an adjustment rod and a sliding groove. Two sets of sliding grooves are provided on the housing. The adjustment rod is slidably engaged in the sliding groove and is placed at the bottom of the sieve plate. Multiple sets of insertion holes are provided on the adjustment rod and the housing corresponding to the sliding grooves. The adjustment rod is fixed in the sliding groove by a pin.

[0013] Preferably, the discharge track includes a first discharge guide rail and a second discharge guide rail. Both the first and second discharge guide rails are curved inclined guide rails, and the edges of the first and second discharge guide rails are provided with guide edges. One end of the first discharge guide rail is placed below the screen plate, and the other end of the first discharge guide rail is placed at the first discharge port. One end of the second discharge guide rail is placed below the material receiving plate, and the other end of the second discharge guide rail is placed at the second discharge port.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a waste incineration power generation slag screening device, which has the following beneficial effects:

[0016] 1. This waste incineration power generation slag screening device is equipped with a sealed shell, screen box and vibrator. It can use vibration to classify and screen incineration residue. It is sealed and pollution-free. The screen plate is adjustable and suitable for screening a variety of different materials. The screening parameters are easy to adjust and it has wide applicability.

[0017] 2. It is equipped with an inclination adjustment structure. One side of the screen plate is hinged and fixed, and the angle of the screen plate can be changed by changing the position of the adjustment rod on the other side. It is suitable for screening a variety of materials, and the screening parameters are easy to adjust, making it widely applicable.

[0018] 3. Equipped with a replaceable mesh plate, allowing for the replacement of mesh plates with different mesh sizes, suitable for screening various materials, and with convenient adjustment of screening parameters. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the sieve box of this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the sieve box of this utility model;

[0023] Figure 5 This is a schematic diagram of the tilt adjustment structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the discharge guide rail of this utility model.

[0025] In the diagram: 1. Outer shell; 2. Feed hopper; 3. First discharge port; 4. Second discharge port; 5. Screen box; 6. Box body; 7. Screen plate; 8. Material support plate; 9. Feed port; 10. Discharge port; 11. Trumpet mouth; 12. Hinge cylinder; 13. Incline adjustment structure; 14. Mesh plate; 15. Adjusting rod; 16. Sliding groove; 17. Insertion hole; 18. First discharge guide rail; 19. Second discharge guide rail; 20. Guide edge. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 This utility model provides a technical solution:

[0028] A waste incineration power generation slag screening device includes an outer shell 1, a feed hopper 2 on the outer shell 1, a first discharge port 3 and a second discharge port 4 on the side of the outer shell 1 away from the feed hopper 2, and a screen box 5, a vibrator and a discharge track installed inside the outer shell 1. Compared with common grading screening devices, this device has a sealed outer shell outside the screen box 5. Some grading screens have unobstructed screen plates, such as mineral grading screens and grain grading screens. This device is used to screen the incineration residue after waste incineration, which contains a large amount of heavy metals, metal oxides and hydroxides, causing significant pollution. Therefore, it must be shielded and cannot be open-air screening. The incineration residue enters from the feed hopper 2 and exits from the first discharge port 3 and the second discharge port 4 after screening. Grading and screening the incineration residue helps with material reuse.

[0029] Furthermore, the screen box 5 includes a box body 6, a screen plate 7, and a support plate 8. The box body 6 has an inlet 9 corresponding to the feed hopper 2. The box body 6 has an outlet 10 on the side adjacent to the first outlet 3 and the second outlet 4. The inclined screen plate 7 and the support plate 8 are installed inside the box body 6. One end of the screen plate 7 and the support plate 8 are placed below the inlet 9, and the other end extends through the outlet 10. The vibration of the vibrator will drive the screen box 5 to vibrate. The vibration of the screen plate 7 will throw the material up and down on the screen surface and move it in the inclined direction. After the material is thrown up on the screen surface, due to inertia, large particles will move forward along the screen surface and be discharged from the outlet, while small particles will fall into the lower layer through the mesh of the screen, thereby realizing the classification and screening of materials.

[0030] Furthermore, both the sieve plate 7 and the material receiving plate 8 are provided with a flared opening 11 near the discharge port 10. The flared opening 11 facilitates material accumulation and prevents material from falling from the side to the outside of the first discharge guide rail 18 and the second discharge guide rail 19.

[0031] Furthermore, the sieve plate 7 has a hinged cylinder 12 at one end near the feed inlet 9 and an angle adjustment structure 13 at one end near the discharge outlet 10. A replaceable mesh plate 14 is installed on the sieve plate 7. Multiple sets of mesh plates 14 can be preset, and the mesh aperture and distribution of the multiple sets of mesh plates 14 can be set as needed. If different mesh sizes are required during screening, the mesh size can be changed by replacing the mesh plate 14.

[0032] Furthermore, the tilt adjustment structure 13 includes an adjusting rod 15 and a sliding groove 16. Two sets of sliding grooves 16 are provided on the housing 6. The adjusting rod 15 is slidably engaged within the sliding grooves 16, and the adjusting rod 15 is positioned at the bottom of the sieve plate 7. Multiple sets of insertion holes 17 are provided on the adjusting rod 15 and the housing 6 corresponding to the sliding grooves 16. The adjusting rod 15 is fixed within the sliding grooves 16 by pins. The adjusting rod 15 can slide up and down and is fixed at a suitable height using pins. One side of the sieve plate 7 is fixed by a hinged cylinder 12, changing the position of the adjusting rod 15 on the sliding groove 16.

[0033] Furthermore, the discharge track includes a first discharge guide rail 18 and a second discharge guide rail 19. Both the first discharge guide rail 18 and the second discharge guide rail 19 are curved inclined guide rails, and the edges of the first discharge guide rail 18 and the second discharge guide rail 19 are provided with guide edges 20. One end of the first discharge guide rail 18 is placed below the screen plate 7, and the other end of the first discharge guide rail 18 is placed at the first discharge port 3. One end of the second discharge guide rail 19 is placed below the receiving plate 8, and the other end of the second discharge guide rail 19 is placed at the second discharge port 4. The first discharge guide rail 18 and the second discharge guide rail 19 are used to discharge the two groups of materials that have been graded and screened. The first discharge guide rail 18 and the second discharge guide rail 19 have a certain inclination to facilitate material discharge.

[0034] Working principle: When using this device for grading and screening, the incineration residue is fed into the device from the feed hopper 2. The incineration residue falls onto the screen plate 7, which is driven by the vibrator at the bottom to vibrate. The vibration of the screen plate 7 screens the material. Large particles remain on the screen plate 7, while small particles and powder pass through the mesh plate 14 and fall onto the receiving plate 8. The two sets of materials fall onto the first discharge guide rail 18 and the second discharge guide rail 19 respectively through the screen plate 7 and the receiving plate 8 and are discharged through the first discharge port 3 and the second discharge port 4.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste incineration power generation slag screening device, comprising a shell (1), characterized in that: The outer shell (1) is provided with a feeding hopper (2), and the outer shell (1) is provided with a first discharge port (3) and a second discharge port (4) on the side away from the feeding hopper (2). The screen box (5), vibrator and discharge track are installed inside the outer shell (1).

2. The waste incineration power generation slag screening device according to claim 1, characterized in that: The sieve box (5) includes a box body (6), a sieve plate (7) and a material support plate (8). The box body (6) has an inlet (9) corresponding to the feed hopper (2). The box body (6) has an outlet (10) on the side near the first outlet (3) and the second outlet (4). The box body (6) is equipped with an inclined sieve plate (7) and a material support plate (8). One end of the sieve plate (7) and the material support plate (8) are both placed below the inlet (9), and the other end extends through the outlet (10).

3. The waste incineration power generation slag screening device according to claim 2, characterized in that: The sieve plate (7) and the material support plate (8) are both provided with a flared mouth (11) at one end near the discharge port (10).

4. The waste incineration power generation slag screening device according to claim 2, characterized in that: The sieve plate (7) has a hinged cylinder (12) at one end near the feed inlet (9), and an angle adjustment structure (13) at one end near the discharge outlet (10). A replaceable mesh plate (14) is installed on the sieve plate (7).

5. A waste incineration power generation slag screening device according to claim 4, characterized in that: The tilt adjustment structure (13) includes an adjustment rod (15) and a sliding groove (16). Two sets of sliding grooves (16) are provided on the housing (6). The adjustment rod (15) is slidably engaged in the sliding groove (16). The adjustment rod (15) is placed at the bottom of the sieve plate (7). Multiple sets of insertion holes (17) are provided on the adjustment rod (15) and the housing (6) corresponding to the sliding groove (16). The adjustment rod (15) is fixed in the sliding groove (16) by a pin.

6. The waste incineration power generation slag screening device according to claim 2, characterized in that: The discharge track includes a first discharge guide rail (18) and a second discharge guide rail (19). Both the first discharge guide rail (18) and the second discharge guide rail (19) are curved inclined guide rails, and the edges of the first discharge guide rail (18) and the second discharge guide rail (19) are provided with guide edges (20). One end of the first discharge guide rail (18) is placed below the screen plate (7), and the other end of the first discharge guide rail (18) is placed at the first discharge port (3). One end of the second discharge guide rail (19) is placed below the material support plate (8), and the other end of the second discharge guide rail (19) is placed at the second discharge port (4).

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