Waste gas recycling device for sludge processing
By designing a waste gas reuse device for sludge processing, the device utilizes conveyor rollers to conduct heat from the waste gas to preheat the sludge, and then cuts it into strips with cutting blades. Combined with heating wires and air inlets, the device solves the problem of energy waste in waste gas during sludge treatment and improves drying efficiency and economy.
Patent Information
- Application Number
- CN202520178200.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-05
AI Technical Summary
During sludge treatment, the discharge of hot and humid waste gas results in energy waste, and existing technologies have failed to effectively utilize the heat from the waste gas.
A waste gas recycling device for sludge processing was designed. The waste gas heat is conducted through a conveyor roller to preheat the sludge, and the sludge is cut into strips by a cutting blade. The drying efficiency is improved by using heating wires and air inlets. The waste gas is discharged through a fan and then treated.
This enables the reuse of waste gas heat, improves sludge drying efficiency, reduces energy waste, and enhances the economics of sludge treatment.
Smart Images

Figure CN223866510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge treatment technology, and in particular to a device for reusing waste gas from sludge processing. Background Technology
[0002] Sludge treatment aims to deeply render sludge harmless, completely eliminating its pollution and harm to humans. However, sludge treatment requires evaporating moisture to reduce its water content. This requires heating and drying the sludge, during which some hot, humid waste gas is discharged, wasting energy. Therefore, those skilled in the art provide a sludge processing waste gas reuse device to solve the problems mentioned in the background. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sludge processing waste gas reuse device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A sludge processing waste gas reuse device includes a box body, with a set of support plates fixedly connected to both sides of the box body, and conveying rollers rotatably connected between the support plates in the same set, and a conveyor belt drivingly connected between the two conveying rollers.
[0006] A storage hopper is fixedly connected between the tops of one set of support plates. A hollow rotating roller is rotatably connected between the two sides of the storage hopper. A set of cutting blades for cutting sludge is fixedly connected to the circumference of each rotating roller. The two sets of cutting blades are used in conjunction. Rotary joints are installed at both ends of the two rotating rollers. A communicating air outlet box is fixedly connected to the top of the box. A communicating intermediate pipe is fixedly connected to one side of the air outlet box. The intermediate pipe is fixedly connected to two rotating joints on the same side. A communicating exhaust pipe is installed between the two rotating joints on the other side.
[0007] As a further embodiment of this utility model, a fan is installed on one side of the box, and the exhaust end of the fan is fixedly connected to an exhaust pipe, which is fixedly connected to a connecting pipe.
[0008] As a further embodiment of this utility model, a second motor is fixedly connected to one side of the outer wall of the storage hopper, an output gear is fixedly connected to one end of the output shaft of the second motor, and transmission gears are fixedly connected to the circumference of both rotating rollers. The two transmission gears mesh, and one of the transmission gears meshes with the output gear.
[0009] As a further improvement of this utility model, multiple heating wires are fixedly connected between the inner walls of both sides of the box.
[0010] As a further improvement of this utility model, multiple through air inlets are provided on both sides of the box.
[0011] As a further embodiment of this utility model, a first motor is fixedly connected to one side of one of the support plates, and one end of the output shaft of the first motor is fixed to one of the conveying rollers.
[0012] As a further improvement of this invention, a viewing window is provided on one side of the housing.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. By designing the drive roller as hollow, the waste gas evaporated during the sludge drying process can pass through the drive roller, and then conduct heat through the drive roller to preheat the sludge, so that the hot air can be reused and energy waste can be reduced.
[0015] 2. By using the drive roller and the cutting blade together, the sludge can be cut into strips when it enters the conveyor belt, which facilitates the drying of the sludge and improves its drying efficiency.
[0016] 3. By setting air inlets on both sides of the chamber, air can enter the chamber through both sides, which, in conjunction with the heating wire, facilitates the drying of sludge. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of a sludge processing waste gas recycling device proposed in this utility model;
[0018] Figure 2 This is a cross-sectional structural schematic diagram of a sludge processing waste gas recycling device proposed in this utility model;
[0019] Figure 3 This is a cross-sectional view of the storage hopper of a sludge processing waste gas recycling device proposed in this utility model.
[0020] In the diagram: 1. Housing; 2. Air outlet box; 3. Support plate; 4. Storage hopper; 5. Intermediate pipe; 6. First motor; 7. Conveyor roller; 8. Conveyor belt; 9. Air inlet; 10. Heating wire; 11. Fan; 12. Second motor; 13. Output gear; 14. Rotating roller; 15. Cutting blade; 16. Transmission gear; 17. Rotary joint; 18. Connecting pipe; 19. Exhaust pipe. Detailed Implementation
[0021] 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. It should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", and "setting" should be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.
[0022] Reference Figures 1-3 A sludge processing waste gas reuse device includes a box body 1. A set of support plates 3 are fixedly connected to both sides of the box body 1. Conveying rollers 7 are rotatably connected between the support plates 3. A conveying mesh belt 8 is driven between the two conveying rollers 7. The conveying mesh belt 8 has a breathable effect and is used to convey sludge for easy drying.
[0023] A storage hopper 4 is fixedly connected to the top of one set of support plates 3. A hollow rotating roller 14 is rotatably connected between the two sides of the storage hopper 4. A set of cutting blades 15 for cutting sludge is fixedly connected to the circumference of the rotating roller 14. The two sets of cutting blades 15 are used in conjunction. Rotary joints 17 are installed at both ends of the two rotating rollers 14. A communicating air outlet box 2 is fixedly connected to the top of the box 1. A communicating intermediate pipe 5 is fixedly connected to one side of the air outlet box 2. The intermediate pipe 5 is fixedly connected to the two rotating joints 17 on the same side. A communicating exhaust pipe 18 is installed between the two rotating joints 17 on the other side. The hot and humid exhaust gas enters the rotating roller 14 through the air outlet box 2 and the intermediate pipe 5, thereby preheating the raw material being cut, improving the sludge drying efficiency, and reducing energy waste.
[0024] In this utility model, a fan 11 is installed on one side of the housing 1. The exhaust end of the fan 11 is fixedly connected to an exhaust pipe 19. The exhaust pipe 19 is fixedly connected to a connecting pipe 18. When the fan 11 is started, the fan 11 extracts the humid and hot exhaust gas inside the housing 1. Finally, the exhaust gas is discharged through the fan 11 to the exhaust gas treatment equipment for further treatment.
[0025] In particular, a second motor 12 is fixedly connected to one side of the outer wall of the storage hopper 4. An output gear 13 is fixedly connected to one end of the output shaft of the second motor 12. Transmission gears 16 are fixedly connected to the circumference of the two rotating rollers 14. The two transmission gears 16 mesh, and one of the transmission gears 16 meshes with the output gear 13. The second motor 12 drives one of the transmission gears 16 to rotate through the output gear 13. Under the action of the two transmission gears 16, the rotating rollers 14 and the cutting blades 15 rotate, thereby cutting the sludge into strips for easy drying.
[0026] It should be noted that multiple heating wires 10 are fixedly connected between the inner walls on both sides of the chamber 1. The heating wires 10 increase the temperature inside the chamber 1, which facilitates the drying of sludge.
[0027] In this utility model, multiple through air inlets 9 are provided on both sides of the box body 1, and the air inlets 9 are used for the entry of fresh air.
[0028] In particular, a first motor 6 is fixedly connected to one side of one of the support plates 3, and one end of the output shaft of the first motor 6 is fixed to one of the conveying rollers 7. The first motor 6 is used to drive the conveying rollers 7 to rotate.
[0029] It should be noted that a viewing window is provided on one side of the box 1, which makes it convenient for people to observe.
[0030] Working principle: During use, the sludge to be dried is conveyed to the storage hopper 4 through the conveying equipment. Then, the first motor 6, the second motor 12, and the heating wire 10 are started. The second motor 12 drives one of the transmission gears 16 to rotate through the output gear 13. Under the action of the two transmission gears 16, the rotating roller 14 and the cutting blade 15 rotate, thereby cutting the sludge into strips for easy drying. At the same time, the first motor 6 drives the conveyor roller 7 to rotate, which in turn drives the conveyor belt 8 to rotate, thereby conveying the cut sludge. Meanwhile, the heating wire 10 is used to increase the temperature inside the chamber 1, thereby increasing the drying efficiency. During drying, the blower 11 is started. The blower 11 draws out the hot and humid exhaust gas from the chamber 1. The hot and humid exhaust gas enters the rotating roller 14 through the air outlet box 2 and the intermediate pipe 5, thereby preheating the cut raw material, improving the drying efficiency of the sludge, and reducing energy waste. Finally, the exhaust gas is discharged to the exhaust gas treatment equipment through the blower 11 for further treatment.
[0031] In this application, the structures and connections not described in detail are all prior art, and their structures and principles are well known, so they will not be described in detail here.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A sludge processing waste gas recycling device, comprising a housing (1), characterized in that, A set of support plates (3) are fixedly connected to both sides of the box (1), and a conveyor roller (7) is rotatably connected between the support plates (3) in the same set, and a conveyor belt (8) is connected between the two conveyor rollers (7). A storage hopper (4) is fixedly connected between the tops of one set of support plates (3). A hollow rotating roller (14) is rotatably connected between the two sides of the storage hopper (4). A set of cutting blades (15) for cutting sludge is fixedly connected to the circumference of the rotating roller (14). The two sets of cutting blades (15) are used in conjunction. Rotary joints (17) are installed at both ends of the two rotating rollers (14). A communicating air outlet box (2) is fixedly connected to the top of the box (1). A communicating intermediate pipe (5) is fixedly connected to one side of the air outlet box (2). The intermediate pipe (5) is fixedly connected to the two rotating joints (17) on the same side. A communicating exhaust pipe (18) is installed between the two rotating joints (17) on the other side.
2. The sludge processing waste gas reuse device according to claim 1, characterized in that, A fan (11) is installed on one side of the housing (1), and the exhaust end of the fan (11) is fixedly connected to an exhaust pipe (19), which is fixedly connected to a connecting pipe (18).
3. The sludge processing waste gas reuse device according to claim 1, characterized in that, A second motor (12) is fixedly connected to one side of the outer wall of the storage hopper (4). An output gear (13) is fixedly connected to one end of the output shaft of the second motor (12). A transmission gear (16) is fixedly connected to the circumference of the two rotating rollers (14). The two transmission gears (16) mesh, and one of the transmission gears (16) meshes with the output gear (13).
4. The sludge processing waste gas reuse device according to claim 1, characterized in that, Multiple heating wires (10) are fixedly connected between the inner walls of the two sides of the box (1).
5. The sludge processing waste gas reuse device according to claim 4, characterized in that, Multiple through-holes (9) are provided on both sides of the box (1).
6. The sludge processing waste gas reuse device according to claim 1, characterized in that, One of the support plates (3) is fixedly connected to one side of a first motor (6), and one end of the output shaft of the first motor (6) is fixed to one of the conveying rollers (7).
7. The sludge processing waste gas reuse device according to claim 1, characterized in that, A viewing window is provided on one side of the box (1).