Urban water sewage sludge drier

By employing a continuous drying design and applying hot air directly to the sludge surface, this sludge dryer solves the problems of frequent start-stop cycles and uneven drying found in existing technologies, achieving efficient and uniform sludge drying. It is suitable for compact spaces in wastewater treatment plants.

CN224530807UActive Publication Date: 2026-07-21ANHUI QINGSONG ENVIRONMENTAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI QINGSONG ENVIRONMENTAL ENG CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing sludge dryers for urban water and sewage treatment suffer from problems such as frequent start-stop cycles leading to process interruptions, high energy consumption, uneven drying, large equipment footprint, and difficulty in cleaning and maintenance.

Method used

The system adopts a continuous drying design, which uses a drive motor to drive the transmission belt, drive the transmission shaft and the conveying screw to achieve continuous sludge transport. The hot air generated by the drying fan is used to directly act on the sludge surface to achieve rapid and uniform dewatering and drying of the sludge, thus integrating sludge transport and drying functions.

Benefits of technology

It achieves efficient and continuous sludge drying, improves processing capacity and drying uniformity, reduces equipment space occupation, facilitates cleaning and maintenance, and is suitable for compact sites in wastewater treatment plants.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224530807U_ABST
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Abstract

The utility model discloses city water affair sewage treatment sludge drying machine relates to the field of drying machine, including motor mounting bracket and axle rod mounting bracket, the axle rod mounting bracket fixed mounting is in the upper end of motor mounting bracket, the inboard fixed mounting of motor mounting bracket has drive motor, the upper end swing mounting of axle rod mounting bracket has transmission axle rod, one side fixed mounting of axle rod mounting bracket has the winding and sending cylinder, one end of winding and sending cylinder integrative forming has the mesh cover cylinder, the inside swing mounting of winding and sending cylinder and mesh cover cylinder has winding and sending screw rod, the outside fixed cover of mesh cover cylinder has dry cylinder. The utility model realizes the fast, even dewatering and drying of sludge, forms the efficient continuous sludge conveying and drying integration design, avoids the low efficiency problem of traditional intermittent drying, significantly improves the processing capacity and drying uniformity, and the overall layout is compact, is convenient for cleaning and maintenance, and occupies small space.
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Description

Technical Field

[0001] This utility model relates to the field of dryers, and in particular to a sludge dryer for urban water and sewage treatment. Background Technology

[0002] Urban water and sewage treatment sludge dryers are mechanical facilities used to dry the sludge generated during urban water and sewage treatment. They can remove moisture from the sludge, making it easier for the sludge to be processed in the next step, and are widely used in sewage treatment.

[0003] Most existing equipment uses intermittent drying processes, requiring frequent start-ups and shutdowns for feeding, drying, and unloading. This leads to interruptions in the processing flow, limited throughput per unit time, and a significant increase in energy consumption with each start-up and shutdown. Hot air supply systems are often distributed, and hot air is easily lost during long-distance pipeline transport and is difficult to penetrate evenly into the sludge, resulting in uneven drying and increased energy consumption. Furthermore, the conveying mechanism and drying cylinder are installed separately, occupying a large space. Complex pipeline connections easily accumulate sludge residue, making cleaning and maintenance difficult and unsuitable for the compact site conditions of wastewater treatment plants. Utility Model Content

[0004] The main purpose of this utility model is to provide a sludge dryer for urban water and sewage treatment, which can effectively solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sludge dryer for urban water and sewage treatment includes a motor mounting bracket and a shaft mounting bracket. The shaft mounting bracket is fixedly installed on the upper end of the motor mounting bracket. A drive motor is fixedly installed on the inner side of the motor mounting bracket. A transmission shaft is movably installed on the upper end of the shaft mounting bracket. A conveying drum is fixedly installed on one side of the shaft mounting bracket. A mesh cover is integrally formed on one end of the conveying drum. A conveying screw is movably installed inside the conveying drum and the mesh cover. A drying cylinder is fixedly sleeved on the outer side of the mesh cover. A conveying box is welded to the lower outer side of the drying cylinder. An inlet connector is fixedly installed on one side of the lower end of the conveying box. An air guide hood is fixedly installed on one side of the inlet connector. A drying fan is provided on one side of the air guide hood.

[0007] As a further embodiment of this utility model, a transmission belt is installed on the outer side of the drive motor shaft and the transmission shaft through a pulley, and one end of the transmission shaft passes through the winding drum and is fixedly connected to one end of the winding screw.

[0008] As a further embodiment of this utility model, an input hopper is fixedly installed on the top outer side of the conveying drum, and the input hopper is in communication with the interior of the conveying drum.

[0009] As a further embodiment of this utility model, the conveying box is internally connected to the drying cylinder, and the conveying box is located on one side of the motor mounting bracket and the shaft mounting bracket.

[0010] As a further embodiment of this utility model, the drying fan includes a fan cover, a fan motor, fan blades, and a resistance heating tube. The fan cover is located on one side of the air guide cover, the fan motor is fixedly installed inside the fan cover, the fan blades are fixedly installed on the end of the fan motor shaft, and the resistance heating tube is fixedly installed inside the fan cover and located outside the fan motor.

[0011] As a further embodiment of this utility model, the fan blades are located on one side of the resistance heating tube, and the wind generated by the fan blades blows into the wind guide shroud.

[0012] Compared with the prior art, this utility model has the following beneficial effects: the drive motor drives the transmission belt, which drives the transmission shaft to rotate, thereby driving the conveying screw to continuously convey sludge in the conveying drum and the screen cylinder. After the sludge enters from the feeding hopper, it is evenly pushed to the screen cylinder area. At the same time, the hot air generated by the drying blower enters the conveying box through the air guide and the inlet joint, and then penetrates into the drying drum. The hot air directly acts on the sludge surface through the screen cylinder, realizing the rapid and uniform dewatering and drying of the sludge. This forms an efficient and continuous integrated design for sludge conveying and drying, avoiding the low efficiency problem of traditional intermittent drying, significantly improving the processing capacity and drying uniformity. At the same time, the overall layout is compact, easy to clean and maintain, occupies little space, and is suitable for the limited space of sewage treatment plants. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the urban water and sewage treatment sludge dryer of this utility model;

[0014] Figure 2 This is a rear view of the sludge dryer for urban water and sewage treatment according to this utility model;

[0015] Figure 3 This is a top view of the sludge dryer for urban water and sewage treatment according to this utility model;

[0016] Figure 4 This is a cross-sectional view of the drying cylinder and conveying box in the urban water and sewage treatment sludge dryer of this utility model.

[0017] In the diagram: 1. Motor mounting bracket; 2. Drive motor; 3. Shaft mounting bracket; 4. Transmission shaft; 5. Transmission belt; 6. Conveying drum; 7. Feeding hopper; 8. Mesh cover cylinder; 9. Conveying screw; 10. Drying drum; 11. Conveying box; 12. Inlet connector; 13. Air guide hood; 14. Drying fan; 15. Fan cover; 16. Fan motor; 17. Fan blades; 18. Resistance heating tube. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-4 As shown, please refer to the urban water and wastewater treatment sludge dryer. Figures 1-4 The device includes a motor mounting bracket 1 and a shaft mounting bracket 3. The shaft mounting bracket 3 is fixedly installed on the upper end of the motor mounting bracket 1. A drive motor 2 is fixedly installed on the inner side of the motor mounting bracket 1. A transmission shaft 4 is movably installed on the upper end of the shaft mounting bracket 3. A conveying drum 6 is fixedly installed on one side of the shaft mounting bracket 3. A mesh cover cylinder 8 is integrally formed on one end of the conveying drum 6. A conveying screw 9 is movably installed inside the conveying drum 6 and the mesh cover cylinder 8. A drying cylinder 10 is fixedly sleeved on the outer side of the mesh cover cylinder 8. A conveying box 11 is welded to the lower outer side of the drying cylinder 10. An inlet connector 12 is fixedly installed on one side of the lower end of the conveying box 11. An air guide shroud 13 is fixedly installed on one side of the inlet connector 12. A drying fan 14 is provided on one side of the air guide shroud 13.

[0020] Please refer to this carefully. Figure 1 and Figure 2 A transmission belt 5 is installed on the outer side of the drive motor 2 shaft and the transmission shaft 4 via a pulley. One end of the transmission shaft 4 is inserted into the winding drum 6 and fixedly connected to one end of the winding screw 9.

[0021] Specifically, the drive motor 2 drives the transmission shaft 4 to rotate via the transmission belt 5, and the transmission shaft 4 then drives the winding screw 9 to rotate.

[0022] Please refer to this carefully. Figures 1-4 An input hopper 7 is fixedly installed on the top outer side of the conveying drum 6, and the input hopper 7 is connected to the interior of the conveying drum 6.

[0023] Specifically, the feeding hopper 7 is used to feed sludge, and then the sludge enters the conveying drum 6. The conveying screw 9 conveys the sludge to one side of the conveying drum 6 and the screen cylinder 8.

[0024] Please refer to this carefully. Figures 1-4 The conveyor box 11 is connected to the interior of the drying cylinder 10, and the conveyor box 11 is located on one side of the motor mounting bracket 1 and the shaft mounting bracket 3.

[0025] Please refer to this carefully. Figure 2 The drying fan 14 includes a fan cover 15, a fan motor 16, fan blades 17, and a resistance heating tube 18. The fan cover 15 is located on one side of the air guide cover 13. The fan motor 16 is fixedly installed inside the fan cover 15. The fan blades 17 are fixedly installed on the shaft end of the fan motor 16. The resistance heating tube 18 is fixedly installed inside the fan cover 15 and located outside the fan motor 16.

[0026] Please refer to this carefully. Figure 2 The fan blade 17 is located on one side of the resistance heating tube 18, and the wind generated by the fan blade 17 blows into the wind guide shroud 13.

[0027] Specifically, when the resistance heating tube 18 is energized, it generates resistance and heats the nearby air. The fan motor 16 runs, driving the fan blades 17 to rotate and blow the air to one side. Thus, the air heated by the resistance heating tube 18 is delivered to the air guide shroud 13. The hot air enters the drying cylinder 10 along the air guide shroud 13, the inlet connector 12, and the air guide shroud 13. Therefore, the hot air in the drying cylinder 10 then permeates into the mesh cover cylinder 8 to dry the sludge inside.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge dryer for urban water and sewage treatment, comprising a motor mounting bracket (1) and a shaft mounting bracket (3), wherein the shaft mounting bracket (3) is fixedly mounted on the upper end of the motor mounting bracket (1), characterized in that: A drive motor (2) is fixedly installed on the inner side of the motor mounting bracket (1). A transmission shaft (4) is movably installed on the upper end of the shaft mounting bracket (3). A winding drum (6) is fixedly installed on one side of the shaft mounting bracket (3). A mesh cover cylinder (8) is integrally formed on one end of the winding drum (6). A winding screw (9) is movably installed inside the winding drum (6) and the mesh cover cylinder (8). A drying cylinder (10) is fixedly sleeved on the outer side of the mesh cover cylinder (8). A conveying box (11) is welded to the lower outer side of the drying cylinder (10). An inlet connector (12) is fixedly installed on one side of the lower end of the conveying box (11). An air guide hood (13) is fixedly installed on one side of the inlet connector (12). A drying fan (14) is provided on one side of the air guide hood (13).

2. The urban water and sewage treatment sludge dryer according to claim 1, characterized in that: The drive motor (2) has a drive belt (5) installed on the outer side of the shaft end and the drive shaft (4) via a pulley. One end of the drive shaft (4) is inserted into the winding drum (6) and fixedly connected to one end of the winding screw (9).

3. The urban water and sewage treatment sludge dryer according to claim 1, characterized in that: An input hopper (7) is fixedly installed on the top outer side of the conveying drum (6), and the input hopper (7) is in communication with the interior of the conveying drum (6).

4. The urban water and sewage treatment sludge dryer according to claim 1, characterized in that: The conveying box (11) is internally connected to the drying cylinder (10), and the conveying box (11) is located on one side of the motor mounting bracket (1) and the shaft mounting bracket (3).

5. The urban water and sewage treatment sludge dryer according to claim 1, characterized in that: The drying fan (14) includes a fan cover (15), a fan motor (16), fan blades (17) and a resistance heating tube (18). The fan cover (15) is located on one side of the air guide cover (13). The fan motor (16) is fixedly installed inside the fan cover (15). The fan blades (17) are fixedly installed on the shaft end of the fan motor (16). The resistance heating tube (18) is fixedly installed inside the fan cover (15) and located outside the fan motor (16).

6. The urban water and sewage treatment sludge dryer according to claim 5, characterized in that: The fan blade (17) is located on one side of the resistance heating tube (18), and the wind generated by the fan blade (17) blows into the wind guide shroud (13).