Coal cinder treatment device for thermal power engineering

Abstract

The application discloses a coal cinder processing device for thermal power engineering, which comprises a material cylinder, a grinding disc, a material crushing device and a dispersion cone cover are sequentially arranged in the material cylinder from bottom to top, an electromagnet is arranged on the inner side of the dispersion cone cover, the grinding disc is connected with a first motor and rotates by the first motor, a grinding annular gap is formed between the grinding disc and the inner wall of the material cylinder, a feeding port is arranged on the upper end of the material cylinder, and a discharging port is arranged on the lower end of the material cylinder. When the coal cinder is ground, the dispersion cone cover can suck out the iron particles in the coal cinder, so that the iron particles cannot damage the grinding disc in the grinding annular gap. The material crushing device in the material cylinder can press the coal cinder, so that the coal cinder is crushed into smaller coal cinder blocks, so that the coal cinder can enter the lower grinding annular gap, the coal cinder cannot accumulate on the upper end of the grinding annular gap to cause material blockage, and the working efficiency is not reduced due to the coal cinder accumulation and blockage.

Description

Technical Field

[0001] This invention relates to a coal slag treatment device, and more particularly to a coal slag treatment device for thermal power plants. Background Technology

[0002] Coal ash from thermal power plants refers to the solid waste remaining after coal combustion during the thermal power generation process. While coal ash disposal was once an environmental issue, it is now widely used in building materials, road construction, and other fields, becoming a form of resource recycling. For example, coal ash can be used to manufacture bricks, concrete aggregates, or as an additive in cement production. This not only helps reduce environmental pollution but also lowers the demand for natural resources.

[0003] When processing coal slag, it needs to be ground into fine granules or powder using a crusher or grinding equipment. However, existing grinding mills often encounter problems when grinding coal slag, as the slag may contain iron particles that cannot be separated before grinding. These iron particles, due to their high hardness, can damage the grinding disc during the grinding process, causing wear and reducing the lifespan of the grinding media. Furthermore, the coal slag often contains large lumps that are difficult to fit into the grinding gaps of the grinding disc. These lumps accumulate at one end of the gaps, hindering the entry of other coal slag, leading to material blockage and reduced grinding efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art and provide a coal slag treatment device for thermal power plants.

[0005] The objective of this invention is achieved through the following technical solution: a coal slag treatment device for thermal power engineering, comprising a material cylinder, wherein a grinding disc, a material crushing device, and a dispersing cone are arranged sequentially from bottom to top inside the material cylinder, and an electromagnet is arranged on the inner side of the dispersing cone; the grinding disc is connected to a first motor, which drives the grinding disc to rotate; an abrasive annular gap is formed between the grinding disc and the inner wall of the material cylinder, and a feed inlet is provided at the upper end of the material cylinder, and a discharge outlet is provided at the lower end of the material cylinder.

[0006] Preferably, a movable cone is provided above the dispersion cone, and a lifting drive device is provided inside the dispersion cone for driving the movable cone to move up and down; the movable cone is driven to move between the lower end position and the upper end position by the lifting drive device; when the movable cone is in the lower end position, the movable cone is in contact with the dispersion cone.

[0007] Preferably, the side of the material cylinder is provided with an annular cavity, which is located below the dispersing cone. A flexible receiving ring is provided in the annular cavity, and the lower end of the flexible receiving ring is connected to the bottom of the annular cavity. Several telescopic driving members are evenly distributed on the outer side of the annular cavity. The upper end of the flexible receiving ring is connected to the telescopic driving members, and the upper end of the flexible receiving ring is driven to move radially along the material cylinder by the telescopic driving members. The telescopic driving members switch the flexible receiving ring between a contracted state and an extended state. When the telescopic driving members are in the extended state, the flexible receiving ring is in the extended state. When the telescopic driving members are in the retracted state, the flexible receiving ring is in the contracted state. Several discharge ports are provided on the outer side of the annular cavity. When unloading the magnetic material adsorbed on the surface of the movable cone, the telescopic driving members drive the flexible receiving ring to switch to the extended state, and the lifting driving device drives the movable cone to move to the upper position so that the movable cone separates from the fixed cone. The magnetic material slides down the outer surface of the movable cone onto the flexible receiving ring below.

[0008] Preferably, the telescopic drive component is a cylinder.

[0009] Preferably, the flexible receiving ring is made of rubber and has a thickness of 2-3 mm.

[0010] Preferably, the movable cone is made of plastic.

[0011] Preferably, the material crushing device includes a fixed cylinder and a second motor. The fixed cylinder is connected to the inner wall of the material cylinder by connecting ribs. Several radially movable rods are arranged in the circumferential direction of the fixed cylinder, and the radially movable rods can move radially along the fixed cylinder. A pressure plate is provided at the end of the radially movable rod outside the fixed cylinder, and a sliding shaft is provided at the end of the radially movable rod inside the fixed cylinder. A drive disk is provided in the fixed cylinder, and several inclined grooves corresponding to the sliding shaft are provided on the drive disk. The inclined grooves form an angle with the diameter direction of the drive disk, and the drive shaft extends into the inclined grooves. The drive disk is connected to the second motor through a transmission shaft, and the second motor drives the drive disk to rotate.

[0012] Preferably, the angle between the inclined groove and the diameter direction of the drive disk is 45 degrees.

[0013] Preferably, the first motor is located at the lower end of the material cylinder, and a protective cover is provided on the outside of the first motor.

[0014] Preferably, the width of the abrasive annular gap gradually decreases from top to bottom.

[0015] The beneficial effects of this invention are as follows: When grinding coal slag, the dispersing cone can draw out iron particles from the slag, preventing them from entering the grinding annular gap and damaging the grinding disc. The material crushing device in the feed cylinder can apply pressure to the coal slag, crushing it into smaller slag blocks. This ensures that all the coal slag enters the lower grinding annular gap and prevents it from accumulating at the upper end of the annular gap and causing material blockage, thus avoiding a decrease in work efficiency due to coal slag accumulation and blockage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the material crushing device and the dispersing cone.

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixed cylinder.

[0019] Figure 4 This is a schematic diagram showing the connection between the flexible receiving ring and the telescopic drive component.

[0020] Figure 5 This is a schematic diagram of the magnetic material being ejected according to the present invention.

[0021] In the diagram: 1. Material cylinder, 2. Feed inlet, 3. Grinding disc, 4. Grinding annular gap, 5. Discharge outlet, 6. First motor, 7. Protective cover, 8. Fixed cylinder, 9. Connecting rib plate, 10. Second motor, 11. Drive shaft, 12. Drive disc, 13. Dispersion cone cover, 14. Movable cone cover, 15. Electromagnet, 16. Lifting drive device, 17. Annular cavity, 18. Discharge outlet, 19. Flexible receiving ring, 20. Telescopic drive component, 21. Radial movable rod, 22. Pressure plate, 24. Inclined groove, 25. Sliding shaft, 30. Cinder, 31. Magnetic attractant. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0023] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] like Figures 1 to 5 As shown, a coal slag treatment device for thermal power plants includes a feed cylinder 1. Inside the feed cylinder 1, from bottom to top, are arranged a grinding disc 3, a material crushing device, and a dispersing cone 13. An electromagnet 15 is installed on the inner side of the dispersing cone 13. The grinding disc 3 is connected to a first motor 6, which drives the grinding disc 3 to rotate. An abrasive annular gap 4 is formed between the grinding disc 3 and the inner wall of the feed cylinder 1. A feed inlet 2 is located at the upper end of the feed cylinder 1, and a discharge outlet 5 is located at the lower end of the feed cylinder 1. The first motor 6 is located at the lower end of the feed cylinder 1, and a protective cover 7 is installed on the outside of the first motor 6.

[0026] The inner wall of the lower part of the barrel 1 is conical, the abrasive disc 3 is a frustum structure, and the side of the abrasive disc 3 is also conical. An abrasive annular gap 4 is formed between the side of the abrasive disc 3 and the inner wall of the lower part of the barrel 1, and the width of the abrasive annular gap 4 gradually decreases from top to bottom. The dispersion cone shroud 13 has a conical structure, and the apex of the dispersion cone shroud 13 is located directly below the feed inlet 2.

[0027] In use, coal slag 30 is fed into the feed cylinder 1 through the feed inlet 2. The coal slag 30 passes sequentially from top to bottom through the dispersing cone 13, the material crushing device, and the grinding disc 3. When the coal slag 30 passes through the dispersing cone 13, the dispersing cone 13 disperses the coal slag 30. Furthermore, because an electromagnet 15 is installed inside the dispersing cone 13, the dispersing cone 13 can attract out iron particles from the coal slag 30, preventing iron particles from entering the grinding annular gap 4 and damaging the grinding disc 3. After passing through the dispersing cone 13, the coal slag 30 will... After passing through the material crushing device, the material crushing device applies pressure to the slag 30, thereby crushing the slag 30 into smaller slag blocks. This ensures that all the slag 30 can enter the grinding annular gap 4 below, and prevents the slag 30 from accumulating at the upper end of the grinding annular gap 4 and causing material blockage. After being crushed by the material crushing device, the slag 30 will enter the grinding annular gap 4, and through the rotation of the grinding disc 3, the slag 30 will be ground into smaller slag 30 particles. Finally, the slag 30 particles will be discharged from the discharge port 5 at the lower end of the material cylinder 1.

[0028] A movable cone 14 is positioned above the dispersing cone 13. A lifting drive device 16 is installed inside the dispersing cone 13 to drive the movable cone 14 up and down. The lifting drive device 16 drives the movable cone 14 to move between a lower and upper position. When the movable cone 14 is in the lower position, it is in contact with the dispersing cone 13. Under normal operating conditions, the movable cone 14 is in the lower position, closely adhering to the outer surface of the dispersing cone 13. The movable cone 14 is close to the electromagnet 15. When material (slag 30) falls onto the movable cone 14, the electromagnet 15 can adsorb the iron particles in the slag 30 onto the outer surface of the movable cone 14. After a period of operation, the magnetically attracted material 31 adsorbed on the outer surface of the movable cone 14 needs to be unloaded. At this time, the lifting drive device 16 drives the movable cone 14 to the upper position, forming a gap between the movable cone 14 and the dispersing cone 13. With a fixed spacing, the distance between the movable cone 14 and the electromagnet 15 inside the dispersion cone 13 is relatively large. The magnetic attraction force of the electromagnet 15 on the magnetic attractant 31 on the outer surface of the movable cone 14 is greatly weakened. The electromagnet 15 is unable to attract the magnetic attractant 31 (iron particles) to the outer surface of the movable cone 14, so that the magnetic attractant 31 slides down the surface of the movable cone 14, realizing the separation of the magnetic attractant 31 from the movable cone 14. After the magnetic attractant 31 on the movable cone 14 is cleaned, the movable cone 14 is driven to move downward to the lower end position by the lifting drive device 16, realizing the reset of the movable cone 14.

[0029] In this embodiment, the lifting drive device 16 is an electric cylinder. There are two lifting drive devices 16, which are respectively connected to both sides of the movable cone cover 14.

[0030] Furthermore, an annular cavity 17 is provided on the side of the material cylinder 1, located below the dispersing cone shroud 13. A flexible receiving ring 19 is provided in the annular cavity 17, with its lower end connected to the bottom of the annular cavity 17. Several telescopic driving members 20 are evenly distributed on the outer side of the annular cavity 17. The upper end of the flexible receiving ring 19 is connected to the telescopic driving member 20. The telescopic driving member 20 drives the upper end of the flexible receiving ring 19 to move radially along the material cylinder 1. The telescopic driving member 20 switches the flexible receiving ring 19 between a contracted state and an expanded state. When the telescopic driving member 20 is in a contracted state... When extended, the flexible receiving ring 19 is in an unfolded state; when the telescopic drive 20 is in a retracted state, the flexible receiving ring 19 is in a contracted state; several discharge ports 18 are provided on the outer side of the annular cavity 17; when unloading the magnetic material 31 adsorbed on the surface of the movable cone shroud 14, the telescopic drive 20 drives the flexible receiving ring 19 to switch to the unfolded state, and the lifting drive device 16 drives the movable cone shroud 14 to move to the upper position so that the movable cone shroud 14 separates from the fixed cone shroud, and the magnetic material 31 slides down the outer surface of the movable cone shroud 14 onto the flexible receiving ring 19 below.

[0031] The structure of the flexible receiving ring 19 is as follows: Figure 4 As shown, the flexible receiving ring 19 has an overall annular structure and is made of flexible materials such as rubber, which allows it to bend and has a certain degree of elasticity. The lower end of the flexible receiving ring 19 is fixed to the bottom of the annular cavity 17, and the position of the lower end of the flexible receiving ring 19 is fixed; the upper end of the flexible receiving ring 19 is connected to the telescopic drive member 20, and the shape of the upper end of the flexible receiving ring 19 is controlled by the telescopic movement of the telescopic drive member 20.

[0032] When the flexible receiving ring 19 is in the retracted state, the telescopic drive component 20 is in the retracted state, and the upper end of the flexible receiving ring 19 is pulled outward, resulting in a large opening at the upper end of the flexible receiving ring 19. The state of the flexible receiving ring 19 is as follows: Figure 4 As shown; at this time, the flexible receiving ring 19 is completely hidden in the annular cavity 17, so it will not obstruct the falling of the slag 30; when the magnetic material 31 adsorbed on the surface of the movable cone shroud 14 is unloaded, the flexible receiving ring 19 switches to the unfolded state, the telescopic drive 20 extends outward, the upper end of the flexible receiving ring 19 extends out of the annular cavity 17 and is located at the lower edge of the bottom edge of the movable cone shroud 14, so that the magnetic material 31 (iron particles) sliding down from the movable cone shroud 14 can just fall on the flexible receiving ring 19, and the magnetic material 31 falls down along the flexible receiving ring 19 to the discharge port 18 on the side of the annular cavity 17 and is discharged outward through the discharge port 18.

[0033] In this embodiment, the telescopic drive component 20 is a cylinder.

[0034] In this embodiment, the flexible receiving ring 19 is made of rubber, and the thickness of the flexible receiving ring 19 is 2-3 mm. The movable cone cover 14 is made of plastic.

[0035] Specifically, the material crushing device includes a fixed cylinder 8 and a second motor 10. The fixed cylinder 8 is connected to the inner wall of the material cylinder 1 by a connecting rib plate 9. Several radially movable rods 21 are arranged in the circumferential direction of the fixed cylinder 8, and the radially movable rods 21 can move radially along the fixed cylinder 8. A pressure plate 22 is provided at the end of the radially movable rod 21 outside the fixed cylinder 8, and a sliding shaft 25 is provided at the end of the radially movable rod inside the fixed cylinder 8. A drive disk 12 is provided in the fixed cylinder 8, and several inclined grooves 24 corresponding to the sliding shaft 25 are provided on the drive disk 12. The inclined grooves 24 form an angle with the diameter direction of the drive disk 12, and the drive shaft extends into the inclined grooves 24. The drive disk 12 is connected to the second motor 10 through a transmission shaft 11, and the second motor 10 drives the drive disk 12 to rotate.

[0036] The fixed cylinder 8 has several guide holes along its circumference, and the cross-section of the guide holes is the same as the cross-section of the radial movable rod 21; the radial movable rod 21 passes through the guide holes. The second motor 10 is located at the upper end of the fixed cylinder 8. When the second motor 10 drives the drive disc 12 to rotate, the sliding shaft 25 moves in the inclined groove 24. Under the cooperation of the inclined groove 24 and the sliding shaft 25, the radial moving rod 21 is driven to move radially along the material cylinder 1, thereby driving the pressure plate 22 to move. When the pressure plate 22 moves towards the inner wall of the material cylinder 1, the slag 30 between the pressure plate 22 and the inner wall of the material cylinder 1 will be subjected to the pressure of the pressure plate 22, and thus be crushed into smaller slag blocks. This ensures that the slag blocks can smoothly enter the grinding annular gap 4. Conversely, when the pressure plate 22 moves towards the outer wall of the fixed cylinder 8, the slag 30 between the pressure plate 22 and the outer wall of the fixed cylinder 8 will be subjected to the squeezing action of the pressure plate 22, and thus be crushed into smaller slag blocks, ensuring that the slag blocks can smoothly enter the grinding annular gap 4. The material crushing device applies pressure to the slag 30, causing it to break into smaller slag blocks, ensuring that the slag 30 can enter the grinding annular gap 4 and avoiding a reduction in grinding efficiency due to material blockage.

[0037] The angle between the inclined groove 24 and the diameter direction of the drive disk 12 is 45 degrees.

[0038] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A coal slag treatment device for thermal power plants, characterized in that, The device includes a material cylinder, inside which, from bottom to top, are arranged a grinding disc, a material crushing device, and a dispersing cone. An electromagnet is installed on the inner side of the dispersing cone. The grinding disc is connected to a first motor, which drives the grinding disc to rotate. An abrasive annular gap is formed between the grinding disc and the inner wall of the material cylinder. A feed inlet is provided at the upper end of the material cylinder, and a discharge outlet is provided at the lower end. A movable cone is provided above the dispersing cone, and a lifting drive device is provided inside the dispersing cone to drive the movable cone to move up and down. The lifting drive device drives the movable cone to move between a lower end position and an upper end position. When the movable cone is in the lower end position, it is in contact with the dispersing cone. The side of the material cylinder is provided with an annular cavity, which is located below the dispersion cone. A flexible receiving ring is provided in the annular cavity, and the lower end of the flexible receiving ring is connected to the bottom of the annular cavity. Several telescopic driving elements are evenly distributed on the outside of the annular cavity. The upper end of the flexible receiving ring is connected to the telescopic driving elements. The upper end of the flexible receiving ring is driven to move along the radial direction of the material cylinder by the telescopic driving elements. The flexible receiving ring is switched between a contracted state and an expanded state by the telescopic driving elements. When the telescopic drive component is in the extended state, the flexible receiving ring is in the unfolded state; when the telescopic drive component is in the retracted state, the flexible receiving ring is in the contracted state; several discharge ports are provided on the outer side of the annular cavity; When unloading the magnetic material adsorbed on the surface of the movable cone, the telescopic drive drives the flexible receiving ring to switch to the unfolded state, and the lifting drive drives the movable cone to move to the upper position so that the movable cone separates from the fixed cone. The magnetic material slides down the outer surface of the movable cone onto the flexible receiving ring below.

2. The slag treatment device for thermal power plants according to claim 1, characterized in that, The telescopic drive component is a cylinder.

3. The slag treatment device for thermal power plants according to claim 1, characterized in that, The flexible receiving ring is made of rubber and has a thickness of 2-3 mm.

4. The slag treatment device for thermal power plants according to claim 1, characterized in that, The movable cone is made of plastic.

5. The slag treatment device for thermal power plants according to claim 1, characterized in that, The material crushing device includes a fixed cylinder and a second motor. The fixed cylinder is connected to the inner wall of the material cylinder by a connecting rib. Several radially movable rods are arranged in the circumferential direction of the fixed cylinder, and the radially movable rods can move radially along the fixed cylinder. A pressure plate is provided at the end of the radially movable rod outside the fixed cylinder, and a sliding shaft is provided at the end of the radially movable rod inside the fixed cylinder. A drive disk is provided in the fixed cylinder, and several inclined grooves corresponding to the sliding shaft are provided on the drive disk. The inclined grooves form an angle with the diameter direction of the drive disk, and the sliding shaft extends into the inclined grooves. The drive disk is connected to the second motor through a transmission shaft, and the second motor drives the drive disk to rotate.

6. The slag treatment device for thermal power plants according to claim 5, characterized in that, The angle between the inclined groove and the diameter direction of the drive disk is 45 degrees.

7. The slag treatment device for thermal power plants according to claim 1, characterized in that, The first motor is located at the lower end of the material cylinder, and a protective cover is provided on the outside of the first motor.

8. The slag treatment device for thermal power plants according to claim 1, characterized in that, The width of the abrasive annular gap gradually decreases from top to bottom.

Images