A drying treatment device for livestock manure

Abstract

The application relates to the field of livestock and poultry manure treatment, in particular to a drying treatment equipment for livestock and poultry manure, which comprises a drying main body structure, a stirring and conveying assembly and a hot air circulation assembly. The stirring and conveying assembly is provided with a spiral shaft, spiral blades and material breaking teeth, and through holes are arranged on the surface of the material breaking teeth; the hot air circulation assembly comprises a hot air box body, a heating pipe and a fan; and the flow guide plate is designed as an inclined flow guide piece and is provided with a wear-resistant coating. The application realizes the synergistic effect of stirring and conveying and hot air circulation, increases the contact area of the material and the hot air, improves the drying efficiency, avoids the accumulation of the material and the short circuit phenomenon of the hot air, and optimizes the utilization rate of the hot air. The damp discharge port baffle adjusts the opening and closing degree through a counterweight block, so that the drying stability is ensured. The application solves the problems of high energy consumption, low efficiency and poor material adaptability of the existing equipment, and has obvious practicability.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection and agricultural waste treatment technology, specifically a drying equipment for livestock and poultry manure. Background Technology

[0002] In livestock and poultry farming, manure treatment is a crucial factor affecting environmental sanitation and resource utilization. Currently, some manure treatment equipment based on technologies such as high-temperature drying, natural sun-drying, or fermentation has emerged on the market. However, these devices often have limitations in their mechanical structure design, consume a lot of energy, and have low processing efficiency. In addition, some equipment has poor adaptability to different materials during operation, making it difficult to meet the needs of farms of different sizes.

[0003] For example, the Chinese invention patent (application number: 202110234567.8) discloses a "drying device for livestock and poultry manure," whose specification states that it includes a drying chamber, a stirring shaft inside the drying chamber, multiple sets of stirring blades mounted on the stirring shaft, a feed inlet on one side of the drying chamber, a discharge outlet on the other side, a hot air inlet at the top of the drying chamber, and a dehumidification outlet at the bottom. The stirring shaft is connected to a drive motor via a transmission mechanism. This application improves drying efficiency by combining stirring and hot air; however, in practical applications, the design of its stirring structure has limited ability to uniformly process materials, and the equipment maintenance is relatively complex. The aforementioned patent can corroborate the shortcomings of the existing technology.

[0004] Therefore, we have made improvements to this and proposed a drying equipment for livestock and poultry manure. Utility Model Content

[0005] The purpose of this invention is to solve the limitations of existing livestock and poultry manure drying equipment in terms of mechanical structure design, high energy consumption, low processing efficiency, and poor adaptability to materials.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a drying device for livestock and poultry manure, comprising a main drying structure, a stirring and conveying assembly, and a hot air circulation assembly. The stirring and conveying assembly is located inside the main drying structure, with a driving device and a driven device at each end. The hot air circulation assembly is located at the top of the main drying structure. The efficient drying of livestock and poultry manure is achieved through the coordinated action of the stirring and conveying assembly and the hot air circulation assembly. A guide plate is provided on the outer side of the stirring and conveying assembly, fixed to the inner wall of the main drying structure, and multiple flow channels are formed between the guide plates.

[0007] The mixing and conveying assembly includes a spiral shaft with multiple spiral blades welded to its surface. A crushing tooth is provided between adjacent spiral blades, and the end of each crushing tooth has a tapered structure. Several through holes with a diameter of 2mm to 5mm are formed on the surface of each crushing tooth. One end of the spiral shaft is connected to a drive device via a bearing, and the other end is connected to a driven device via a bearing. The drive device includes a motor and a reducer. The motor is connected to the input shaft of the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the spiral shaft via a keyway.

[0008] The hot air circulation assembly includes a hot air box with a hot air outlet at the bottom, which is connected to the main drying structure via a pipe. An air inlet is located at the top of the hot air box, and a filter screen with a mesh size of 80 to 120 is installed at the inlet. Heating tubes arranged in a U-shape are installed inside the hot air box, with both ends fixed to the inner wall of the box by bolts. A fan is also installed inside the hot air box, fixed to the inner wall by a bracket, with its outlet facing the hot air outlet.

[0009] The guide plate includes multiple inclined guide vanes with an inclination angle of 30° to 45°. The surface of each guide vane is coated with a wear-resistant coating with a thickness of 0.5mm to 1mm. A support frame is located at the bottom of the guide plate. The support frame is bolted to the inner wall of the drying main structure. The support frame has an L-shaped cross-section. The vertical portion of the support frame is welded to the bottom of the guide plate, and the horizontal portion is bolted to the inner wall of the drying main structure.

[0010] The bottom of the main drying structure is equipped with a vent, which is connected to an external dehumidification system via a pipe. An internal baffle is installed inside the vent, connected to the inner wall of the vent via a hinge. A counterweight with a weight of 0.5 kg to 1 kg is located at the bottom of the baffle. One side of the main drying structure has a feed inlet, and the other side has a discharge outlet. Both the feed inlet and discharge outlet are connected to external pipes via flanges. An internal guide plate is installed inside the feed inlet, with an inclination angle of 45° to 60° and an anti-slip texture on its surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By incorporating a mixing and conveying assembly and a hot air circulation assembly, the system achieves mixing and crushing of livestock and poultry manure during the drying process, driven by a spiral shaft and consisting of spiral blades and crushing teeth. This increases the contact area between the material and the hot air, improving drying efficiency. Simultaneously, the through-holes on the surface of the crushing teeth separate some fine particles during mixing, further enhancing material uniformity. The guide plate design ensures that the material flows along a specific path within the main drying structure, preventing material accumulation and hot air short-circuiting, thus improving hot air utilization. Furthermore, the baffle inside the exhaust port, adjusted by a counterweight, allows for control of the exhaust volume according to actual needs, ensuring the stability of the drying process. This invention solves the problems of high energy consumption, low processing efficiency, and poor material adaptability in existing livestock and poultry manure drying equipment, demonstrating significant technological advancement and practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout relationship of the drying main structure, the stirring and conveying component, and the hot air circulation component.

[0013] Figure 2 This is a structural schematic diagram of the mixing and conveying assembly, highlighting the structural details of the spiral shaft, spiral blades, and crushing teeth, where the crushing teeth have tapered ends and through holes on their surfaces.

[0014] Figure 3 This is a schematic diagram of the internal structure of the hot air circulation assembly, showing the arrangement of the heating pipes, fan, and filter screen inside the hot air box. The heating pipes are arranged in a U-shape.

[0015] Figure 4 This is a schematic diagram of the flow guide plate, showing the tilt angle of the flow guide plate and its wear-resistant coating. It also shows the connection method between the support frame and the inner wall of the drying main structure.

[0016] Figure 5 This is a structural diagram of the vent, showing the design where the baffle is connected to the inner wall of the vent via a hinge, and the opening and closing degree is adjusted by a counterweight.

[0017] The attached figures are labeled as follows: 1. Drying main structure; 2. Mixing and conveying assembly; 3. Hot air circulation assembly; 4. Spiral shaft; 5. Spiral blades; 6. Crushing teeth; 7. Through hole; 8. Drive device; 9. Driven device; 10. Hot air box; 11. Hot air outlet; 12. Air inlet; 13. Filter screen; 14. Heating tube; 15. Fan; 16. Guide plate; 17. Guide vane; 18. Support frame; 19. Exhaust port; 20. Baffle; 21. Counterweight; 22. Feed inlet; 23. Discharge port; 24. Guide plate. Detailed Implementation

[0018] This utility model provides a drying device for livestock and poultry manure, the specific implementation of which is described in conjunction with the attached drawing. Figure 1 To be continued Figure 5 Please provide a detailed explanation. For example... Figure 1 As shown, the equipment includes a drying main structure 1, a stirring and conveying assembly 2, and a hot air circulation assembly 3. The drying main structure 1 is a rectangular sealed box, inside which the stirring and conveying assembly 2 is located. A driving device 8 and a driven device 9 are respectively located at both ends of the stirring and conveying assembly 2. The hot air circulation assembly 3 is located at the top of the drying main structure 1 and is connected to the drying main structure 1 via a pipe. A guide plate 16 is provided on the outer side of the stirring and conveying assembly 2. The guide plate 16 is fixed to the inner wall of the drying main structure 1, and multiple flow channels are formed between the guide plates 16, which guide the flow of materials.

[0019] The specific structure of the mixing and conveying component 2 is as follows: Figure 2 As shown, the device includes a spiral shaft 4, with multiple spiral blades 5 welded to its surface. Crushing teeth 6 are located between adjacent spiral blades 5, with tapered ends. Several through holes 7, ranging in diameter from 2mm to 5mm, are formed on the surface of the crushing teeth 6. One end of the spiral shaft 4 is connected to a drive device 8 via a bearing, and the other end is connected to a driven device 9 via a bearing. The drive device 8 includes a motor and a reducer. The motor is connected to the input shaft of the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the spiral shaft 4 via a keyway. Driven by the drive device 8, the spiral shaft 4 rotates, and the spiral blades 5 push the material along the axial direction of the spiral shaft 4. Simultaneously, the crushing teeth 6 crush the material. The through holes 7 on the surface of the crushing teeth 6 allow some fine particles to pass through during the crushing process, thereby increasing the uniformity of the material.

[0020] The specific structure of the hot air circulation component 3 is as follows: Figure 3 As shown, the system includes a hot air chamber 10, with a hot air outlet 11 at the bottom, connected to the main drying structure 1 via a pipe. An air inlet 12 is located at the top of the hot air chamber 10, with a filter screen 13 installed at the inlet 12. The filter screen 13 has a mesh size of 80 to 120 mesh. Heating tubes 14 are arranged in a U-shape and fixed to the inner wall of the hot air chamber 10, with both ends bolted to the inner wall. A fan 15 is also installed inside the hot air chamber 10, fixed to the inner wall by a bracket, with its outlet facing the hot air outlet 11. When the fan 15 is started, air enters the hot air chamber 10 through the air inlet 12, is filtered by the filter screen 13, heated by the heating tubes 14, forming hot air, which then enters the main drying structure 1 through the hot air outlet 11.

[0021] The specific structure of the deflector 16 is as follows: Figure 4 As shown, the system includes multiple inclined guide vanes 17, with an inclination angle of 30° to 45°. The surface of each guide vane 17 is coated with a wear-resistant coating with a thickness of 0.5 mm to 1 mm. A support frame 18 is located at the bottom of the guide plate 16. The support frame 18 is bolted to the inner wall of the drying main structure 1. The support frame 18 has an L-shaped cross-section. The vertical portion of the support frame 18 is welded to the bottom of the guide plate 16, and the horizontal portion is bolted to the inner wall of the drying main structure 1. The design of the guide vanes 17 allows the material to flow along a specific path inside the drying main structure 1, preventing material accumulation.

[0022] The bottom of the drying main structure 1 is provided with a dehumidification port 19, which is connected to an external dehumidification system through a pipe. A baffle 20 is provided inside the dehumidification port 19, which is connected to the inner wall of the port 19 via a hinge. A counterweight 21 is provided at the bottom of the baffle 20, and the weight of the counterweight 21 is 0.5 kg to 1 kg. Figure 5 As shown, the baffle 20's opening and closing degree is adjusted by the counterweight 21. When the internal moisture pressure of the drying main structure 1 is high, the baffle 20 automatically opens to discharge moisture; when the moisture pressure is low, the baffle 20 closes to reduce heat loss. The drying main structure 1 has a feed inlet 22 on one side and a discharge outlet 23 on the other side. Both the feed inlet 22 and the discharge outlet 23 are connected to external pipes via flanges. The feed inlet 22 has a guide plate 24 inside, with an inclination angle of 45° to 60° and an anti-slip texture on its surface. The design of the guide plate 24 allows materials to smoothly enter the drying main structure 1 without clogging.

[0023] In practical applications, the material enters the drying main structure 1 through the feed inlet 22, and the guide plate 24 guides the material to the working area of ​​the mixing and conveying component 2. After the drive device 8 is started, the motor drives the spiral shaft 4 to rotate through the reducer, and the spiral blades 5 push the material to move axially along the spiral shaft 4. At the same time, the crushing teeth 6 crush the material and separate some fine particles. After the fan 15 in the hot air circulation component 3 is started, air enters the hot air box 10 through the air inlet 12, is filtered by the filter screen 13, and is heated by the heating tube 14 to form hot air. The hot air enters the drying main structure 1 through the hot air outlet 11 and comes into contact with the material. The guide plate 16 guides the material to flow along a specific path, increasing the contact time between the material and the hot air and improving the drying efficiency. The moisture generated during the drying process is discharged through the vent 19, and the baffle 20 automatically adjusts the opening and closing degree according to the moisture pressure to control the amount of moisture discharged. After drying is completed, the material is discharged from the discharge port 23.

[0024] In the above embodiments, the connection and positional relationships between the components are clear, and the stirring and conveying assembly 2 and the hot air circulation assembly 3 work together to achieve efficient drying of livestock and poultry manure.

[0025] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principles of this utility model are further explained below in conjunction with specific application scenarios.

[0026] First, the material is conveyed to the feed inlet 22 via an external conveying device, and the guide plate 24 guides the material to the working area of ​​the mixing and conveying assembly 2. The guide plate 24 is designed with an inclination angle of 45° to 60°, and its surface is provided with anti-slip texture to effectively prevent material accumulation or blockage during entry. After the material enters the drying main structure 1, the drive device 8 is started, and the motor drives the spiral shaft 4 to rotate through the reducer. The spiral blades 5 then push the material along the axial direction of the spiral shaft 4. At the same time, the crushing teeth 6 crush the material. The conical design of its ends can effectively cut into the material blocks, while the through holes 7 on the surface of the crushing teeth 6 allow some fine particles to pass through, thereby improving the uniformity of the material. This process, through the combination of mechanical force and structural design, achieves adaptive processing of materials with different particle sizes, significantly improving the equipment's adaptability to materials.

[0027] Next, the hot air circulation assembly 3 starts working. After the fan 15 starts, air enters the hot air chamber 10 through the air inlet 12. The filter screen 13 installed at the air inlet 12 can effectively filter impurities in the outside air, ensuring the quality of the air entering the system. The filtered air is heated by the heating tubes 14 to form hot air. The heating tubes 14 are arranged in a U-shape, which increases the heat exchange area and improves the heating efficiency. The hot air enters the drying main structure 1 through the hot air outlet 11 and comes into contact with the material. Due to the design of the guide plate 16, the material flows along a specific path inside the drying main structure 1, increasing the contact time between the material and the hot air, thereby improving the utilization rate of the hot air. The tilt angle of the guide plate 17 is 30° to 45°, and the wear-resistant coating on its surface effectively extends the service life of the guide plate 16 while reducing the frictional resistance during the material flow process.

[0028] During the drying process, the moisture in the material gradually evaporates, forming humid air, which is discharged through the vent 19. The baffle 20's opening and closing degree is adjusted by a counterweight 21. When the internal humid air pressure of the drying main structure 1 is high, the baffle 20 automatically opens to discharge the humid air; when the humid air pressure is low, the baffle 20 closes to reduce heat loss. This design achieves a dynamic balance between humid air discharge and heat retention through a simple mechanical structure, ensuring both drying effect and reduced energy consumption.

[0029] Finally, the thoroughly dried material is discharged from the outlet 23. The outlet 23 is connected to an external pipeline via a flange, facilitating integration with other equipment and enabling continuous production. Throughout the process, the mixing and conveying assembly 2 and the hot air circulation assembly 3 work together. The material is continuously moved forward by the screw shaft 4, while being crushed by the crushing teeth 6 and continuously heated by the hot air, ultimately reaching the ideal dry state. Through the above steps, this invention achieves highly efficient drying of livestock and poultry manure, solving the problems of high energy consumption, low processing efficiency, and poor adaptability to materials in existing technologies, demonstrating significant technological progress and practicality.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying treatment device for livestock and poultry manure, characterized in that, The equipment includes a drying main structure (1), which is equipped with a stirring and conveying assembly (2) inside. The stirring and conveying assembly (2) is equipped with a driving device (8) and a driven device (9) at both ends. The drying main structure (1) is equipped with a hot air circulation assembly (3) at the top. The stirring and conveying assembly (2) is equipped with a guide plate (16) on the outside. The guide plate (16) is fixed on the inner wall of the drying main structure (1), and multiple guide channels are formed between the guide plates (16).

2. The drying equipment for livestock and poultry manure according to claim 1, characterized in that, The stirring and conveying assembly (2) includes a spiral shaft (4), on which multiple spiral blades (5) are welded. Between two adjacent spiral blades (5), there are crushing teeth (6). The ends of the crushing teeth (6) are tapered. Several through holes (7) are opened on the surface of the crushing teeth (6). The diameter of the through holes (7) is 2mm to 5mm. One end of the spiral shaft (4) is connected to the drive device (8) through a bearing, and the other end is connected to the driven device (9) through a bearing.

3. The drying equipment for livestock and poultry manure according to claim 2, characterized in that, The drive device (8) includes a motor and a reducer. The motor is connected to the input shaft of the reducer via a coupling, and the output shaft of the reducer is fixedly connected to the helical shaft (4) via a keyway.

4. The drying equipment for livestock and poultry manure according to claim 1, characterized in that, The hot air circulation assembly (3) includes a hot air box (10), with a hot air outlet (11) at the bottom of the hot air box (10). The hot air outlet (11) is connected to the drying main structure (1) through a pipe. The top of the hot air box (10) is provided with an air inlet (12). A filter screen (13) is installed at the air inlet (12). The mesh size of the filter screen (13) is 80 to 120 mesh. The interior of the hot air box (10) is provided with a heating tube (14) and a fan (15). The heating tube (14) is arranged in a U-shape and fixed on the inner wall of the hot air box (10). The fan (15) is fixed on the inner wall of the hot air box (10) by a bracket.

5. The drying equipment for livestock and poultry manure according to claim 1, characterized in that, The guide plate (16) includes a plurality of inclined guide vanes (17), the inclination angle of the guide vanes (17) is 30° to 45°, the surface of the guide vanes (17) is provided with a wear-resistant coating, the thickness of the wear-resistant coating is 0.5mm to 1mm, and the bottom of the guide plate (16) is provided with a support frame (18), the support frame (18) is fixed to the inner wall of the drying main structure (1) by bolts.

6. A drying treatment device for livestock and poultry manure according to claim 5, characterized in that, The cross-section of the support frame (18) is L-shaped. The vertical part of the support frame (18) is welded to the bottom of the guide plate (16), and the horizontal part is fixed to the inner wall of the drying main structure (1) by bolts.

7. The drying equipment for livestock and poultry manure according to claim 1, characterized in that, The bottom of the drying main structure (1) is provided with a dehumidification port (19), which is connected to an external dehumidification system through a pipe. The interior of the dehumidification port (19) is provided with a baffle (20), which is connected to the inner wall of the dehumidification port (19) through a hinge. The bottom of the baffle (20) is provided with a counterweight (21), which weighs 0.5 kg to 1 kg.

8. The drying equipment for livestock and poultry manure according to claim 1, characterized in that, The drying main structure (1) has a feed inlet (22) on one side and a discharge outlet (23) on the other side. Both the feed inlet (22) and the discharge outlet (23) are connected to external pipes through flanges. The feed inlet (22) has a guide plate (24) inside. The guide plate (24) has an inclination angle of 45° to 60° and the surface of the guide plate (24) has anti-slip texture.

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