A single-drum rotary dryer for easy feeding of fly ash

Abstract

This utility model discloses a single-cylinder rotary dryer for easy feeding of fly ash, including a base and an outer cylinder. A drying frame is rotatably connected to the inner wall of the outer cylinder, with one end of the drying frame extending out of the surface of the outer cylinder. A dust collection cylinder is provided inside the opening of the drying frame, and a horizontal plate is fixedly connected to the inner wall of the dust collection cylinder. An exhaust fan is installed on the surface of the horizontal plate, and conical mesh frames are fixedly connected to both ends of the dust collection cylinder. By setting a dust collection cylinder inside the opening of the drying frame and using an exhaust fan to draw air into the drying frame, this utility model can create a negative pressure adsorption field at the moment of feeding, intercepting and collecting the raised dust through the conical mesh frames at both ends into the dust collection cylinder, preventing dust from overflowing and polluting the workshop environment, and significantly improving the environmental performance of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of fly ash drying technology, specifically a single-drum rotary dryer for fly ash that is easy to feed. Background Technology

[0002] In the field of industrial solid waste treatment and resource utilization, fly ash, as a byproduct of industries such as thermal power generation, requires drying as a key step in achieving comprehensive utilization. Single-drum rotary dryers, due to their simple structure and large processing capacity, have become commonly used equipment for drying fly ash.

[0003] Traditional single-drum rotary fly ash dryers, which use direct tilting or belt conveyor feeding, generate large amounts of dust due to the fine particle characteristics of fly ash, polluting the working environment and potentially causing respiratory health problems for operators. Simultaneously, dust accumulation can clog the feeding channel, affecting feeding efficiency and continuity, making it difficult to meet the demands of environmentally friendly production and efficient drying. Therefore, a new technical solution is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a single-drum rotary dryer for fly ash that facilitates feeding, thereby solving the problem mentioned in the background art that traditional single-drum rotary dryers for fly ash, when using direct tilting or belt conveyor feeding, easily generate a large amount of dust, polluting the working environment due to the fine particle characteristics of fly ash.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-cylinder rotary dryer for easy feeding of fly ash, comprising a base and an outer cylinder, wherein a drying frame is rotatably connected to the inner wall of the outer cylinder, one end of the drying frame extends out of the surface of the outer cylinder, a dust suction cylinder is provided inside the opening of the drying frame, a horizontal plate is fixedly connected to the inner wall of the dust suction cylinder, an exhaust fan is installed on the surface of the horizontal plate, and conical mesh frames are fixedly connected to both ends of the dust suction cylinder opening.

[0006] In this technical solution, by setting a dust collection cylinder inside the opening of the drying frame and using an exhaust fan to draw air into the drying frame, a negative pressure adsorption field can be formed at the moment of feeding. The dust raised is intercepted by the conical mesh frames at both ends and collected in the dust collection cylinder, preventing dust from overflowing and polluting the workshop environment, and significantly improving the environmental performance of the equipment.

[0007] Preferably, connecting rods are fixedly connected to the inner walls of the drying frames on both the upper and lower sides of the vacuum cleaner, and a cleaning brush is fixedly connected to the end of the connecting rod facing the conical mesh frame. Several electric heating tubes are fixedly connected to the inner wall of the vacuum cleaner on one side of the exhaust fan.

[0008] Preferably, a support frame is fixedly connected to the outer surface of the outer cylinder opening side, the surface of the support frame facing the outer cylinder opening side is fixedly connected to one end of a support rod, and the other end of the support rod is fixedly connected to a horizontal plate inside the vacuum cleaner cylinder.

[0009] Preferably, a servo motor is fixedly connected to the outer wall of the outer cylinder, and the tail end of the drive shaft of the servo motor is connected to the drying frame via a coupling.

[0010] Preferably, two hot air blowers are installed at the top of the outer cylinder, the hot air blowers draw air downwards and the air outlet is located inside the outer cylinder, and air outlets are opened on the outer cylinder sidewalls on both the upper and lower sides of the servo motor.

[0011] Preferably, two vertical frames are fixedly connected to the surface of the base, the outer cylinder is rotatably connected between the two vertical frames, and two electric telescopic cylinders are rotatably connected to the top of the base through a hinge seat. The top of the electric telescopic cylinder is rotatably connected to the upper outer cylinder through a hinge seat.

[0012] Preferably, a spiral plate is fixedly connected to the inner wall of the drying frame outside the dust collection cylinder, and a rotating ring is fixedly connected to the outer surface of the drying frame at the contact position with the outer cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting a dust collection cylinder inside the opening of the drying frame and using an exhaust fan to draw air into the drying frame, can create a negative pressure adsorption field at the moment of feeding, intercepting the dust raised by the conical mesh frames at both ends and collecting it in the dust collection cylinder, thus preventing dust from overflowing and polluting the workshop environment, and significantly improving the environmental performance of the equipment.

[0015] 2. This utility model features conical mesh frames at both ends of the dust collection cylinder and cleaning brushes on the inner wall of the drying frame. These brushes clean the mesh surface simultaneously as the drying frame rotates, preventing dust accumulation and clogging of the air inlet, and ensuring a continuously unobstructed dust collection channel. The outer spiral plate, rotating with the drying frame, compresses and tumbles the material, breaking up clumps and distributing it evenly, allowing the material to enter the drying area in a loose state. Combined with hot air delivered through the openings of the drying frame by a hot air blower, the heat exchange area of ​​the material increases, effectively improving drying efficiency compared to traditional equipment. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is an overall view of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the dust collection cylinder of this utility model.

[0020] In the diagram: 1. Base; 2. Vertical frame; 3. Outer cylinder; 4. Drying frame; 401. Servo motor; 402. Rotating ring; 5. Air outlet; 6. Hot air blower; 7. Support rod; 701. Support frame; 8. Horizontal plate; 9. Dust collection cylinder; 10. Exhaust fan; 11. Conical mesh frame; 12. Electric heating element; 13. Spiral plate; 14. Electric telescopic cylinder; 15. Connecting rod; 16. Cleaning brush. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A single-drum rotary dryer for easy feeding of fly ash, see [link / reference]. Figures 1 to 3 The system includes a base 1 and an outer cylinder 3. A drying frame 4 is rotatably connected to the inner wall of the outer cylinder 3. A rotating ring 402 is fixedly connected to the outer surface of the drying frame 4 at the contact point with the outer cylinder 3. The contact point between the rotating ring 402 and the outer cylinder 3 is very smooth, which can both support the drying frame 4 and allow the drying frame 4 to rotate normally. A servo motor 401 is fixedly connected to the outer wall of the outer cylinder 3. The tail end of the drive shaft of the servo motor 401 is connected to the drying frame 4 through a coupling. After the servo motor 401 is started, it drives the drying frame 4 to rotate, thereby causing the material inside to tumble and rotate, increasing the contact area with the hot air, and thus improving the drying efficiency.

[0023] Specifically, such as Figure 2 and Figure 3 As shown, a support frame 701 is fixedly connected to the outer surface of the outer cylinder 3 on one side of the opening. The surface of the support frame 701 facing the opening of the outer cylinder 3 is fixedly connected to one end of the support rod 7. The other end of the support rod 7 is fixedly connected to the horizontal plate 8 inside the dust collection cylinder 9. One end of the drying frame 4 extends out of the surface of the outer cylinder 3. The dust collection cylinder 9 is provided inside the opening of the drying frame 4. The horizontal plate 8 is fixedly connected to the inner wall of the dust collection cylinder 9. An exhaust fan 10 is installed on the surface of the horizontal plate 8. The dust collection cylinder 9 is fixedly supported by the support frame 701 and the support rod 7. When adding material, the exhaust fan 10 is started and blows air into the inside of the drying frame 4, thereby sucking up the dust and preventing it from flying freely and affecting the surrounding air environment, thus improving the environmental friendliness of the device. Conical mesh frames 11 are fixedly connected to both ends of the dust collection cylinder 9. The conical mesh frames 11 can intercept the dust and prevent it from entering the interior of the dust collection cylinder 9.

[0024] It should be noted that, as Figure 1 and Figure 2As shown, two vertical frames 2 are fixedly connected to the surface of the base 1, and the outer cylinder 3 is rotatably connected between the two vertical frames 2. The top of the base 1 is rotatably connected to two electric telescopic cylinders 14 through a hinge seat. The top of the electric telescopic cylinder 14 is rotatably connected to the upper outer cylinder 3 through the hinge seat. After the electric telescopic cylinder 14 is started, it can drive the outer cylinder 3 to change the angle. When feeding, the electric telescopic cylinder 14 on one side of the opening of the outer cylinder 3 extends and the one on the other side shortens, so that the opening is tilted upward. Therefore, when feeding, the material can slide and avoid leakage. At the same time, when discharging, the opening end of the outer cylinder 3 is turned downward, and the material can gradually slide out. With the pushing action of the spiral plate 13 when the drying frame 4 rotates in the opposite direction, the discharge efficiency can be improved.

[0025] Furthermore, such as Figure 2 As shown, connecting rods 15 are fixedly connected to the inner walls of the drying frames 4 on both the upper and lower sides of the dust collection cylinder 9. A cleaning brush 16 is fixedly connected to the end of the connecting rod 15 facing the conical mesh frame 11. During the feeding process, materials and dust will inevitably accumulate on the surface of the conical mesh frame 11. As the drying frame 4 rotates, the cleaning brush 16 on its inner wall will gradually sweep across the surface of the conical mesh frame 11, thereby effectively reducing blockage and ensuring smooth airflow. Several electric heating tubes 12 are fixedly connected to the inner wall of the dust collection cylinder 9 on one side of the exhaust fan 10. While the exhaust fan is running, the electric heating tubes 12 are energized and heated, which can assist the hot air blower 6 in heating and drying the materials inside the drying frame 4 from the side, thus improving the drying efficiency. A spiral plate 13 is fixedly connected to the inner wall of the drying frame 4 on the outer side of the dust collection cylinder 9. When the materials pass through the spiral plate 13, they are squeezed and rolled, thereby reducing agglomeration and improving the subsequent drying efficiency.

[0026] It is worth noting that, such as Figure 1 and Figure 2 As shown, two hot air blowers 6 are installed at the top of the outer cylinder 3. The hot air blowers 6 draw air downwards and the air outlets 5 are located inside the outer cylinder 3. Air outlets 5 are opened on the side walls of the outer cylinder 3 on both the upper and lower sides of the servo motor 401. The hot air blowers 6 blow air into the interior of the outer cylinder 3. The two hot air blowers 6 at the top of the outer cylinder 3 deliver hot air downwards. The airflow enters the interlayer between the drying frame 4 and the outer cylinder 3 through the air outlets 5 on the inner side wall of the outer cylinder 3. Then, it penetrates the material layer through the evenly distributed sieve holes on the wall of the drying frame 4 to achieve circumferential heating. This pore design ensures the hot air penetration efficiency and prevents the leakage of undried fly ash particles. The air outlets 5 keep the air duct unobstructed so that water vapor and hot air can be discharged normally.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A fly ash single-cylinder rotary dryer with ease of feeding, comprising a base (1) and an outer cylinder (3), characterized in that: A drying frame (4) is rotatably connected to the inner wall of the outer cylinder (3). One end of the drying frame (4) extends out of the surface of the outer cylinder (3). A dust collection tube (9) is provided inside the opening of the drying frame (4). A horizontal plate (8) is fixedly connected to the inner wall of the dust collection tube (9). An exhaust fan (10) is installed on the surface of the horizontal plate (8). Conical mesh frames (11) are fixedly connected to the openings at both ends of the dust collection tube (9).

2. A fly ash single drum rotary dryer for facilitating feeding as claimed in claim 1 wherein: Connecting rods (15) are fixedly connected to the inner walls of the drying frames (4) on both the upper and lower sides of the dust collection cylinder (9). A cleaning brush (16) is fixedly connected to one end of the connecting rod (15) facing the conical mesh frame (11). Several electric heating tubes (12) are fixedly connected to the inner wall of the dust collection cylinder (9) on one side of the exhaust fan (10).

3. A fly ash single drum rotary dryer for facilitating feeding as claimed in claim 2 wherein: A support frame (701) is fixedly connected to the outer surface of the opening side of the outer cylinder (3). The surface of the support frame (701) facing the opening side of the outer cylinder (3) is fixedly connected to one end of the support rod (7). The other end of the support rod (7) is fixedly connected to the horizontal plate (8) inside the dust collection cylinder (9).

4. A single-drum rotary dryer for easy feeding of fly ash according to claim 1, characterized in that: A servo motor (401) is fixedly connected to the outer wall of the outer cylinder (3), and the end of the drive shaft of the servo motor (401) is connected to the drying frame (4) via a coupling.

5. A fly ash single drum rotary dryer for facilitating feeding as claimed in claim 4 wherein: Two hot air blowers (6) are installed at the top of the outer cylinder (3). The hot air blowers (6) draw air downward and the air outlet (5) is located inside the outer cylinder (3). The outer cylinder (3) side walls on both the upper and lower sides of the servo motor (401) are provided with air outlets (5).

6. A fly ash single drum rotary dryer for facilitating feeding as claimed in claim 1, wherein: Two vertical frames (2) are fixedly connected to the surface of the base (1). The outer cylinder (3) is rotatably connected between the two vertical frames (2). Two electric telescopic cylinders (14) are rotatably connected to the top of the base (1) through a hinge seat. The top of the electric telescopic cylinder (14) is rotatably connected to the upper outer cylinder (3) through a hinge seat.

7. A fly ash single drum rotary dryer for facilitating feeding as claimed in claim 1, wherein: A spiral plate (13) is fixedly connected to the inner wall of the drying frame (4) on the outside of the dust collection cylinder (9), and a rotating ring (402) is fixedly connected to the outer surface of the drying frame (4) at the contact position with the outer cylinder (3).

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