Composting equipment for producing sludge organic fertilizer

Abstract

The utility model relates to the technical field of sludge organic fertilizer production equipment, and particularly discloses composting equipment for sludge organic fertilizer production. The device comprises a machine body and a tank body, the machine body is rotationally connected with two screw rods, and the two screw rods are driven by a power device to rotate at the same time; the two screw rods jointly support a moving body, a vertical shaft is rotationally connected to the moving body, the vertical shaft extends into the groove body and is fixedly provided with a plurality of material turning arms, a driving gear is fixed to the vertical shaft, a rack is fixed to the machine body, and the driving gear is meshed with the rack; the upper end of the vertical shaft is provided with a rotary joint communicated with the air supply hole. The material turning arm and the vertical shaft in the composting equipment can perform dual physical effects on materials through movement and rotation, the turning effect is good, the efficiency is high, air can be pumped into a material pile, aeration is sufficient and efficient, and therefore the composting efficiency and effect are improved. The composting equipment is low in operation energy consumption, high in utilization rate of the internal space of the tank body, easy to clean, compact in structure and easy to implement.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge organic fertilizer production equipment, and in particular to a composting equipment for sludge organic fertilizer production. Background Technology

[0002] In the production of sludge organic fertilizer, composting of pretreated sludge is a crucial process, typically accomplished using composting equipment such as composting tanks and reactors. Composting equipment usually requires an internal stirring mechanism to agitate the material during the composting cycle, preventing caking and anaerobic fermentation, thereby improving the efficiency and quality of composting. Currently, the stirring mechanisms in composting equipment are mostly spiral agitators. These mechanisms are large and heavy, and their large agitation area results in high energy consumption, low energy utilization, and increased energy costs. Furthermore, the stirring mechanism occupies a significant amount of internal space, leading to low composting space utilization and greatly increasing the difficulty of cleaning and maintaining the equipment's internal walls.

[0003] Furthermore, during the composting cycle of sludge, aeration of the material pile is necessary to shorten the fermentation process and improve fermentation quality. Existing composting equipment typically only delivers air into the equipment cavity and then uses stirring to bring the material into contact with the air. This requires maintaining stirring for a long time and with sufficient stirring force, further increasing the energy cost of composting, and there is still considerable room for improvement in aeration efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a composting device for producing sludge organic fertilizer. This device can turn over the material and inject air into the pile, thereby improving composting efficiency and quality. Furthermore, through its scientifically designed structure, this composting device possesses multiple technical advantages, including simple structure, ease of implementation, high space utilization, and low energy consumption.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A composting device for producing organic fertilizer from sludge includes a body with a trough fixed on it. Two screws are rotatably connected to the body, extending horizontally along the length of the trough. A power device for driving the two screws to rotate simultaneously is fixed to the body. The two screws jointly support a movable body, which is threaded into the two screws via two threaded holes. A vertically extending shaft is rotatably connected to the movable body, extending into the trough and having several tilting arms fixed thereon. A drive gear is fixed to the shaft, and a rack extending horizontally along the length of the trough is fixed to the body, meshing with the drive gear. Air inlets are provided on the tilting arms, and a rotary joint is installed at the upper end of the shaft. Flow channels connecting the rotary joint and the air inlets are provided inside the shaft and the tilting arms.

[0007] Furthermore, the two screws are distributed vertically, the vertical shaft is located on one side of the two screws, the drive gear is located below the movable body, and the rack is located below the screws.

[0008] Furthermore, both ends of the screw are equipped with synchronous gears, and the two synchronous gears on the two screws located at the same end of the groove mesh with each other, and one end of one screw is connected to the power device for transmission.

[0009] Furthermore, a protective cover is provided above the tank and a feed inlet is reserved, with a movable cover on the feed inlet.

[0010] Furthermore, the two inner sidewalls of the tank are inclined, making the inner cavity of the tank narrower at the bottom and wider at the top, and the length of the turning arm gradually decreases from top to bottom.

[0011] Furthermore, the outside of the turning arm is covered with a rubber sleeve, and the rubber sleeve has a self-closing hole, which is a straight or cross-shaped cut on the side wall of the rubber sleeve.

[0012] Compared with existing technologies, the beneficial technical effects of this composting equipment are as follows:

[0013] 1. When this composting equipment processes sludge, the turning arm and vertical shaft can exert a dual physical action on the material through movement and rotation, resulting in excellent turning effect and high efficiency. During the turning process, air can be injected into the material pile, ensuring sufficient and efficient aeration. This improves the efficiency and effectiveness of composting.

[0014] 2. When this composting equipment turns over materials, the vertical shaft and the turning arm move to gradually turn over materials at different positions. This results in a smaller workload, lower energy consumption, and more stable operation. The turning arm and vertical shaft occupy less space in the tank, making the internal space of the tank more efficient and easier to clean and maintain. The position movement and rotation of the vertical shaft and the turning arm are all powered by the same power unit. The two screws provide support, guidance, and drive for the moving parts. Based on the above structural features, the components of this composting equipment have extremely high utilization, and the transmission structure is very simple, compact, and easy to implement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0016] Figure 1 This is one of the schematic diagrams of the overall structure of the composting equipment in the embodiment.

[0017] Figure 2 This is the second schematic diagram of the overall structure of the composting equipment in the embodiment.

[0018] Figure 3 This is the third schematic diagram of the overall structure of the composting equipment in the embodiment.

[0019] Figure 4 This is a schematic diagram of the structure of the composting equipment in the embodiment after partial cross-section.

[0020] Figure 5 This is a schematic diagram of the structure of the column and the tipping arm in the embodiment.

[0021] Figure 6 This is a schematic diagram of the cooperation structure between the flipping arm and the rubber sleeve in the embodiment.

[0022] In the diagram, 1. Support leg, 2. Machine body, 3. Tank, 4. Feed inlet, 5. Screw, 6. Rack, 7. Rotary joint, 8. Moving body, 9. Synchronous gear, 10. Power unit, 11. Tilting arm, 12. Vertical shaft, 13. Drive gear, 14. Protective cover, 15. Discharge port, 16. Air inlet, 17. Threaded hole, 18. Hose, 19. Rubber sleeve, 20. Self-closing hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] See Figures 1-5 As shown, this embodiment discloses a composting device for producing sludge organic fertilizer, which includes a body 2 with support legs 1 at the bottom. A trough 3 is fixed on the body 2, and the trough 3 has a long, narrow inner cavity for composting. The upper end of the trough 3 is open for material feeding, and the lower end of the trough 3 has at least one discharge port 15 that can be switched on and off for material discharge. Two parallel screws 5 are rotatably connected to the body 2, and the two screws 5 are located above the trough 3 and extend horizontally along the length of the trough 3. A power device 10 is fixed on the body 2, and the power device 10 is connected to the two screws 5. When the power device 10 is running, the two screws 5 rotate simultaneously. The two screws 5 jointly support a movable body 8, which has two threaded holes 17. The two threaded holes 17 are respectively fitted onto the two screws 5 and engaged by threads. Thus, when the two screws 5 rotate simultaneously... The moving body 8 is driven to move along the length of the tank 3. A vertically extending shaft 12 is rotatably connected to the moving body 8. The shaft 12 extends into the tank 3 and is fixed with several material-turning arms 11. A drive gear 13 is fixed on the shaft 12, and the center lines of the shaft 12 and the drive gear 13 coincide. A rack 6 extending horizontally along the length of the tank 3 is fixed on the machine body 2, and the drive gear 13 meshes with the rack 6. Based on the above design, when the shaft 12 moves with the moving body 8, the drive gear 13 will roll along the rack 6, thereby causing the shaft 12 to drive the material-turning arms 11 to rotate, so as to stir the material in the tank 3. An air inlet 16 is provided on the material-turning arm 11. A rotary joint 7 is installed at the upper end of the shaft 12. A flow channel is provided inside the shaft 12 and the material-turning arm 11 to connect the rotary joint 7 and the air inlet 16. The flow channel is used for air flow.

[0025] When using this composting equipment to compost sludge, the material can be turned over as needed to improve its looseness and aeration, prevent caking, and avoid the formation of an anaerobic environment within the compost pile, thereby improving composting efficiency and quality. Specifically, the power unit 10 drives the two screws 5 to rotate, and the rotation direction of the screws 5 is adjusted intermittently. The moving body 8 drives the vertical shaft 12 and the turning arm 11 to move back and forth along the length of the tank 3, causing the material in the tank 3 to turn over. At the same time, during the reciprocating movement of the vertical shaft 12 and the turning arm 11, under the cooperation of the drive gear 13 and the rack 6, the vertical shaft 12 and the turning arm 11 will rotate, and the turning arm 11 will stir the material, further improving the turning effect.

[0026] This composting equipment has an aeration function, which can supply fresh air to the material pile during the composting cycle. Specifically, when using the equipment, the input end of the rotary joint 7 is connected to the external air supply equipment via the hose 18 or spring tube. The vertical shaft 12 and the turning arm 11 turn the material in the aforementioned manner, and the air inlet 16 of the turning arm 11 introduces fresh air into the material pile to achieve a good aeration effect.

[0027] When this composting equipment turns over the materials, the vertical shaft 12 and the turning arm 11 gradually turn over the materials at different positions by moving. The workload is small, the energy consumption is low, and the operation is more stable. The turning arm 11 and the vertical shaft 12 occupy little space in the tank 3, which makes the internal space of the tank 3 highly utilized and easy to clean and maintain. The position movement and rotation of the vertical shaft 12 and the turning arm 11 are all powered by the same power unit 10. The two screws 5 provide multiple functions such as support, guidance and drive for the moving body 8. Based on these design features, the components in this composting equipment have extremely high utilization rate, the transmission structure is very simple and compact, and it is easy to implement.

[0028] When this composting equipment turns over the material, the turning arm 11 and the vertical shaft 12 can exert a dual physical action on the material through movement and rotation, resulting in excellent turning effect and high efficiency. During the turning of the material, air can be injected into the material pile, ensuring sufficient and efficient aeration. Thus, the efficiency and effect of composting can be guaranteed.

[0029] like Figure 1 , Figure 4As shown, in a preferred embodiment, the two screws 5 are distributed vertically, the vertical shaft 12 is located on one side of the two screws 5, the drive gear 13 is located below the movable body 8, and the rack 6 is located below the screws 5. This significantly optimizes the structural layout of the above components, improving structural compactness, fit strength, and stress rationality. Simultaneously, based on this design feature, the two screws 5 can provide stable support for the movable body 8, eliminating the need for additional components such as slide rails or grooves for the movable body 8 during implementation, further enhancing the ease of implementation of this composting equipment.

[0030] like Figures 1-3 As shown, in a preferred embodiment, both ends of the screw 5 are equipped with synchronous gears 9. The two synchronous gears 9 on the two screws 5, located at the same end of the groove 3, mesh with each other. One end of one screw 5 is connected to the power device 10 for transmission. Thus, when the power device 10 drives the corresponding screw 5 to rotate, that screw 5 drives the other screw 5 to rotate through the synchronous gear 9, thereby enabling the two screws 5 to move synchronously in opposite directions, and thus jointly drive the floating body 8 to move. In addition, the two screws 5 can also establish a synchronous transmission connection through pulleys and synchronous belts.

[0031] like Figure 1 , Figure 2 As shown, in a preferred embodiment, a protective cover 14 is provided above the tank 3 and a feed inlet 4 is reserved to protect the components on the upper side of the tank 3 and reduce heat loss during the composting process; in addition, a movable cover can also be provided on the feed inlet 4 to block it, so as to further reduce heat loss.

[0032] like Figure 4 As shown, in a preferred embodiment, the two inner sidewalls of the trough 3 are inclined, making the inner cavity of the trough 3 narrower at the bottom and wider at the top, thereby reducing the pressure on the material in the lower part of the trough and ensuring looseness; correspondingly, the length of the turning arm 11 gradually shortens from top to bottom, which can make the force on the vertical shaft 12 more reasonable and stable while ensuring the turning effect on the material.

[0033] like Figure 6 As shown, in a preferred embodiment, the material turning arm 11 is covered with a rubber sleeve 19, and the rubber sleeve 19 has a self-closing hole 20. The self-closing hole 20 is a straight or cross-shaped cut on the side wall of the rubber sleeve 19. Thus, during the aeration process, the material turning arm 11 has a high air pressure. After the air is discharged through the air inlet 16, it will drive the self-closing hole 20 to open, thereby discharging into the material pile. When no aeration is being carried out, the self-closing hole 20 can automatically return to the closed state to prevent material or water in the material pile from entering the interior of the material turning arm 11 and to prevent air passage blockage.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0035] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A composting device for producing organic fertilizer from sludge, comprising a body and a trough fixed on the body; characterized in that: Two screws are rotatably connected to the machine body, extending horizontally along the length of the groove. A power device for driving the two screws to rotate simultaneously is fixed on the machine body. The two screws jointly support a movable body, which is threaded into the two screws via two threaded holes. A vertically extending shaft is rotatably connected to the movable body, extending into the groove and fixed with several tilting arms. A drive gear is fixed on the shaft, and a rack extending horizontally along the length of the groove is fixed on the machine body. The drive gear meshes with the rack. Air inlets are provided on the tilting arms, and a rotary joint is installed at the upper end of the shaft. A flow channel connecting the rotary joint and the air inlets is provided inside the shaft and the tilting arms.

2. The composting equipment for producing sludge organic fertilizer according to claim 1, characterized in that: The two screws are arranged vertically, the vertical shaft is located on one side of the two screws, the drive gear is located below the moving body, and the rack is located below the screws.

3. The composting equipment for producing sludge organic fertilizer according to claim 1, characterized in that: Both ends of the screw are equipped with synchronous gears, and the two synchronous gears located at the same end of the groove on the two screws mesh with each other. One end of one screw is connected to the power device for transmission.

4. The composting equipment for producing organic fertilizer from sludge according to claim 1, characterized in that: The tank is equipped with a protective cover and a pre-reserved feed inlet, which is fitted with a movable cover.

5. The composting equipment for producing sludge organic fertilizer according to claim 1, characterized in that: The two inner walls of the trough are inclined, making the inner cavity of the trough narrower at the bottom and wider at the top, and the length of the turning arm gradually decreases from top to bottom.

6. The composting equipment for producing organic fertilizer from sludge according to claim 1, characterized in that: The material turning arm is covered with a rubber sleeve, and the rubber sleeve has a self-closing hole, which is a straight or cross-shaped cut on the side wall of the rubber sleeve.

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