Drying device for sludge treatment

Abstract

The utility model discloses a drying device for sludge treatment, which comprises a drying shell, the drying shell is arranged on external equipment, an air inlet mechanism is arranged on the drying shell, the air inlet mechanism comprises a motor, a conveying blade, a one-way pipe, a communicating pipe, a conveying mechanism, an abutting sleeve and an adjusting mechanism, the motor is arranged on a support frame, and the conveying blade is arranged on the support frame. A plurality of one-way pipes are arranged, sludge is conveyed into the drying shell, and meanwhile, hot air is introduced into the drying shell through the one-way pipes and the communicating pipes, so that the hot air can enter the sludge from the bottom through the design, and the problem of obstruction during ventilation at the upper end is avoided; meanwhile, due to the arrangement of the receiving groove and the sealing disc on the one-way pipe, it is guaranteed that hot air is introduced under proper pressure, sludge is prevented from flowing backwards, and it is guaranteed that the drying process is smoothly carried out.

Description

Technical Field

[0001] This utility model relates to the field of sludge drying technology, and more specifically, to a sludge drying device for sludge treatment. Background Technology

[0002] In existing sludge treatment technologies, the design and operation of sludge drying devices face several challenges. On one hand, if the drying device introduces hot air through top ventilation, the hot air may not effectively penetrate the sludge layer. This is because the viscosity and porosity of sludge can cause hot air to be blocked at the surface, preventing it from penetrating the interior and thus reducing drying efficiency. In this case, even if hot air is blown in, it may only move along the sludge surface rather than being evenly distributed throughout the entire sludge volume, resulting in uneven drying and affecting the sludge treatment effect.

[0003] On the other hand, if bottom-venting is chosen for sludge drying, there is a risk of clogging. During the sludge drying process, solid particles or flocculent materials may be generated, which can easily accumulate in the bottom-venting pipes, causing blockages. Once a blockage occurs, it not only affects the flow of hot air but may also require shutdown for cleaning, reducing the operating efficiency of the drying unit and increasing maintenance costs. Furthermore, frequent blockages and cleaning operations also pose a threat to the health and safety of operators. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a sludge drying device for sludge treatment to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sludge drying device, comprising a drying shell installed on an external device, an air intake mechanism provided on the drying shell, the air intake mechanism comprising a motor, a conveying blade, a one-way pipe, a connecting pipe, a conveying mechanism, a contact sleeve, and an adjusting mechanism, the motor being mounted on a support frame, the conveying blade being mounted on the extended end of the motor, the conveying blade being rotatably connected inside the drying shell, multiple one-way pipes being provided, and the multiple one-way pipes being respectively connected to the lower end face of the drying shell, one end of the connecting pipe being connected to the external air intake device, and the other end of the connecting pipe being connected to the multiple one-way pipes, the conveying mechanism being mounted on the drying shell, the one-way pipe having a receiving groove, the receiving sleeve having a contact sleeve attached to it, and the adjusting mechanism being mounted on the one-way pipe.

[0008] The present invention is further configured such that the adjusting mechanism includes a sealing disc and a spring, the sealing disc is slidably connected inside the one-way tube, one end of the spring is connected to the sealing disc, and the other end of the spring is connected inside the one-way tube. This design enables the adjusting mechanism to adjust according to the pressure of the hot air entering, ensuring the smooth entry of hot air and the drying effect of sludge.

[0009] The present invention is further configured such that the contact sleeve is provided with a pull rod, and the one-way tube is provided with a receiving sleeve, with the pull rod slidably connected to the receiving sleeve. This configuration enables the adjustment mechanism to achieve precise control of the hot air introduction process through the sliding connection between the pull rod and the receiving sleeve, thereby improving the flexibility and efficiency of the drying process.

[0010] The present invention is further configured such that the contact sleeve is provided with a round head, and multiple vent holes are opened on the lower end face of the one-way tube. The round head allows hot air to enter the sludge evenly through the vent holes, thereby improving the uniformity and efficiency of drying.

[0011] The present invention is further configured such that the conveying mechanism includes a feed hopper and a receiving shell. The feed hopper is installed on an external device, and the two ends of the receiving shell are respectively connected to the drying shell and the feed hopper. This design of the conveying mechanism enables the sludge to be smoothly conveyed from the feed hopper to the drying shell, thereby improving the continuity and efficiency of sludge treatment.

[0012] The present invention is further configured such that a central rod is rotatably provided inside the receiving shell, and multiple paddles are provided on the side wall of the central rod. The rotational design of the central rod and the paddles enables the sludge to be evenly dispersed and propelled during the conveying process, thereby avoiding the accumulation and blockage of sludge.

[0013] The present invention is further configured such that a driven wheel is provided on the intermediate rod, a driving wheel is provided on the conveying blade, and a belt is meshed on the driving wheel and the driven wheel. This belt drive design makes the power transmission between the conveying blade and the intermediate rod smoother, and improves the stability and reliability of sludge conveying.

[0014] The present invention is further provided that the drying shell is provided with a discharge pipe. The design of the discharge pipe allows the dried sludge to be smoothly discharged from the drying shell, thus completing the sludge treatment process.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a sludge drying device for sludge treatment, which has the following beneficial effects:

[0017] 1. The design of the air intake mechanism ensures that hot air can be effectively introduced into the sludge for drying. The sludge is transported into the drying chamber by the motor-driven conveyor blades. At the same time, the one-way pipe and connecting pipe introduce hot air into the drying chamber. This design allows hot air to enter the sludge from the bottom, avoiding the obstruction problem when air is introduced from the top, thus improving the drying efficiency. Meanwhile, the receiving groove and sealing plate on the one-way pipe ensure that the hot air is introduced under appropriate pressure, preventing the backflow of sludge and ensuring the smooth progress of the drying process.

[0018] 2. The adjustment mechanism achieves precise control of the hot air introduction process through the cooperation of the sealing disc and the spring. When the pressure of the hot air exceeds the elastic force of the spring, the sealing disc will move downward, thereby releasing the seal between the contact sleeve and the receiving groove, allowing the hot air to be discharged through the receiving groove. This design allows the hot air introduction process to be adjusted according to the dryness of the sludge and the pressure of the hot air, improving the flexibility and controllability of the drying process.

[0019] 3. The conveying mechanism, through the cooperation of the feed hopper, receiving shell, and intermediate rod, achieves smooth sludge transport. The sludge is first put into the feed hopper, and then transported into the drying shell by the rotation of the receiving shell and intermediate rod, as well as the pushing of the paddle. This design makes the sludge transport process efficient and uniform, avoids the problem of sludge blockage during transport, and improves the overall efficiency of sludge treatment. At the same time, the rotation of the conveying blades and the belt drive ensure the continuous transport of sludge in the drying shell, further improving the drying effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a sludge drying device for sludge treatment according to the present invention.

[0021] Figure 2 This is a cross-sectional view of the drying shell in this utility model;

[0022] Figure 3 This is a cross-sectional view of the one-way tube and the contact sleeve in this utility model;

[0023] Figure 4 This is a schematic diagram of the sealing disc in this utility model;

[0024] Figure 5 This is a cross-sectional view of the one-way tube in this utility model.

[0025] In the diagram: 1. Drying shell; 2. Motor; 3. Conveying blade; 4. One-way pipe; 5. Connecting pipe; 6. Contact sleeve; 7. Receiving groove; 8. Sealing disc; 9. Spring; 10. Pull rod; 11. Receiving sleeve; 12. Round head; 13. Vent hole; 14. Feed hopper; 15. Receiving shell; 16. Intermediate rod; 17. Paddle; 18. Driven wheel; 19. Drive wheel; 20. Belt; 21. Discharge pipe. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5A sludge drying device includes a drying shell 1, which is installed on an external device. The drying shell 1 is equipped with an air intake mechanism, which includes a motor 2, a conveying blade 3, a one-way pipe 4, a connecting pipe 5, a conveying mechanism, a contact sleeve 6, and an adjusting mechanism. The motor 2 is mounted on a support frame, and the conveying blade 3 is installed on the extended end of the motor 2. The conveying blade 3 is rotatably connected inside the drying shell 1. Multiple one-way pipes 4 are provided, and each one-way pipe 4 is connected to the lower end face of the drying shell 1. One end of the connecting pipe 5 is connected to the external air intake device, and the other end of the connecting pipe 5 is connected to the multiple one-way pipes 4. The conveying mechanism is installed on the drying shell 1. A receiving groove 7 is opened on the one-way pipe 4, and a contact sleeve 6 is attached to the receiving sleeve 11. The adjusting mechanism is installed on the one-way pipe 4 and includes a sealing disc 8 and a spring 9. 8 is slidably connected inside the one-way tube 4. One end of the spring 9 is connected to the sealing disc 8, and the other end of the spring 9 is connected inside the one-way tube 4. The contact sleeve 6 is provided with a pull rod 10, and the one-way tube 4 is provided with a receiving sleeve 11. The pull rod 10 is slidably connected to the receiving sleeve 11. The contact sleeve 6 is provided with a round head 12. Multiple ventilation holes 13 are opened on the lower end face of the one-way tube 4. The conveying mechanism includes a feed hopper 14 and a receiving shell 15. The feed hopper 14 is installed on external equipment. The two ends of the receiving shell 15 are respectively connected to the drying shell 1 and the feed hopper 14. A middle rod 16 is rotatably provided inside the receiving shell 15. Multiple paddles 17 are provided on the side wall of the middle rod 16. A driven wheel 18 is provided on the middle rod 16. A driving wheel 19 is provided on the conveying blade 3. A belt 20 meshes with the driving wheel 19 and the driven wheel 18. A discharge pipe 21 is provided on the drying shell 1.

[0030] In this embodiment, when sludge needs to be dried, the sludge is first placed into the feed hopper 14, and then the motor 2 drives the conveyor blade 3 to rotate. The belt 20 drives the paddle 17 to transport the sludge into the drying shell 1. The conveyor blade 3 then drives the sludge to be transported in the drying shell 1, and hot air is introduced through the one-way pipe 4. The sludge is then dried from the bottom, thereby improving the drying effect.

[0031] More specifically, when hot air needs to be introduced, the contact sleeve 6 and the receiving groove 7 inside the one-way pipe 4 are in a sealing process. Then, when the pressure of the hot air exceeds the elastic force of the spring 9, it will drive the sealing disc 8 to move downward, thereby causing the contact sleeve 6 to release the seal between it and the receiving groove 7, and the hot air at the corresponding pressure will be discharged through the receiving groove 7. At this time, because the pressurized sludge will not fall into the one-way pipe 4, the air discharge process is completed.

[0032] In summary, when the equipment is in use or operation: when sludge needs to be dried, the sludge is first placed into the feed hopper 14. Then, the motor 2 drives the conveyor blades 3 to rotate, and the belt 20 drives the deflector 17 to transport the sludge into the drying shell 1. The conveyor blades 3 then transport the sludge within the drying shell 1, and hot air is introduced through the one-way pipe 4. The sludge is then dried from the bottom, thus improving the drying effect. When hot air needs to be introduced, the contact sleeve 6 and the receiving groove 7 inside the one-way pipe 4 are in a sealing process. When the pressure of the hot air exceeds the elastic force of the spring 9, it will drive the sealing disc 8 to move downward, causing the contact sleeve 6 to release the seal between it and the receiving groove 7, and the hot air at the corresponding pressure will be discharged through the receiving groove 7. At this time, because the sludge is under pressure, it will not fall into the one-way pipe 4, thus completing the air discharge process.

[0033] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge drying device for sludge treatment, comprising a drying shell (1), characterized in that, The drying shell (1) is installed on an external device. An air intake mechanism is provided on the drying shell (1). The air intake mechanism includes a motor (2), a conveying blade (3), a one-way pipe (4), a connecting pipe (5), a conveying mechanism, a contact sleeve (6), and an adjusting mechanism. The motor (2) is installed on a support frame. A conveying blade (3) is installed on the extended end of the motor (2). The conveying blade (3) is rotatably connected inside the drying shell (1). Multiple one-way pipes (4) are provided, and multiple one-way pipes (4) are respectively connected to the lower end face of the drying shell (1). One end of the connecting pipe (5) is connected to the external air intake device, and the other end of the connecting pipe (5) is connected to multiple one-way pipes (4). The conveying mechanism is installed on the drying shell. On the shell (1), a receiving groove (7) is provided on the one-way tube (4), and a contact sleeve (6) is attached to the receiving sleeve (11). The adjustment mechanism is installed on the one-way tube (4). The adjustment mechanism includes a sealing disc (8) and a spring (9). The sealing disc (8) is slidably connected inside the one-way tube (4), and one end of the spring (9) is connected to the sealing disc (8), and the other end of the spring (9) is connected to the one-way tube (4). A pull rod (10) is provided on the contact sleeve (6), and a receiving sleeve (11) is provided on the one-way tube (4). The pull rod (10) is slidably connected to the receiving sleeve (11). A round head (12) is provided on the contact sleeve (6), and multiple vent holes (13) are provided on the lower end face of the one-way tube (4).

2. The sludge drying device according to claim 1, characterized in that: The conveying mechanism includes a feed hopper (14) and a receiving shell (15). The feed hopper (14) is installed on an external device, and the two ends of the receiving shell (15) are respectively connected to the drying shell (1) and the feed hopper (14).

3. The sludge drying device according to claim 2, characterized in that: The receiving shell (15) is rotatably provided with a middle rod (16), and multiple paddles (17) are provided on the side wall of the middle rod (16).

4. The sludge drying device according to claim 3, characterized in that: The intermediate rod (16) is provided with a driven wheel (18), the conveying blade (3) is provided with a driving wheel (19), and a belt (20) is meshed on the driving wheel (19) and the driven wheel (18).

5. A sludge drying device according to claim 4, characterized in that: The drying shell (1) is provided with a discharge pipe (21).

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