A fertilizer stirring and fermentation device

Abstract

The utility model belongs to fertilizer fermentation equipment technical field especially points to a kind of fertilizer stirring fermentation device, including the fermentation stirring drum of transverse arrangement, the inner chamber of fermentation stirring drum is provided with helical blade, fermentation stirring drum includes the barrel body surrounded by several circumferentially distributed arc main plate, feed end cover and material return end cover, arc main plate is wavy structure, the side edge between adjacent two arc main plates is inside and outside layering and is fixed by fastening screw, feed end cover and material return end cover are all equipped with annular linkage plate, annular linkage plate and the corresponding end edge of arc main plate are inside and outside layering and are fixed by fastening screw.The utility model barrel body is assembled by several arc main plates, and arc main plate is also designed into wavy structure, which not only facilitates the assembly and disassembly cleaning of barrel body, but also makes barrel body have sufficient supporting strength and lighter overall weight, effectively reduces the cost required by barrel body manufacturing, transportation and storage.

Description

Technical fields:

[0001] This utility model belongs to the technical field of fertilizer fermentation equipment, specifically referring to a fertilizer stirring and fermentation device. Background technology:

[0002] In agricultural production and organic waste treatment, the mixing and fermentation of fertilizers (especially compost) are key technological steps to improve fertilizer efficiency and accelerate decomposition. A Chinese utility model patent (authorization announcement number CN208865540U) discloses a mixing system for adding fermentation bacteria to biomass fertilizers. This system includes a mixing drum with a raised outer ring extending beyond its surface. Two driven rollers are located at the bottom of the outer ring, and a drive wheel is mounted on the outer wall of the drum between the two rings. Inside the drum are spiral mixing blades that move material from left to right as the drum rotates. An end cap with a central hole is located at the left side of the drum, and a feeding funnel is located on the left side of the drum. The outlet of the feeding funnel extends into the drum through the hole in the end cap. Thus, the spiral mixing blades are installed inside the drum, and the rotation of the drum drives the blades to mix, tumble, and axially transport the material.

[0003] However, the above structure has revealed the following problems in practice: 1. High overall strength requirements, heavy weight, and high cost: The drum needs to withstand the weight of the fermentation material, the huge torque generated by stirring, and the heat generated during the fermentation process. Furthermore, for long drums, to ensure the radial and axial rigidity meets requirements to avoid bending and affecting the stable operation of the equipment, the drum must adopt a cylindrical structure with a large wall thickness. This results in significant costs for manufacturing, transportation, storage, and installation. 2. Inconvenient internal cleaning: During fertilizer fermentation, the material easily adheres to the inner wall of the drum and forms stubborn clumps, which not only affects the effective volume but may also become a breeding ground for pathogens, affecting the fermentation quality of subsequent batches. The integrated, sealed drum structure makes internal cleaning extremely difficult, requiring manual entry or the use of specialized cleaning equipment, which is time-consuming, labor-intensive, and poses safety hazards. Summary of the Invention:

[0004] The purpose of this invention is to provide a fertilizer mixing and fermentation device, the cylinder of which is assembled from several arc-shaped main boards, and the arc-shaped main boards are designed with a wave-like structure. This not only facilitates the assembly, disassembly and cleaning of the cylinder, but also gives the cylinder sufficient support strength and a lighter overall weight, effectively reducing the cost required for the manufacture, transportation and storage of the cylinder.

[0005] This utility model is implemented as follows:

[0006] A fertilizer mixing and fermentation device includes a transversely arranged fermentation mixing drum. The inner cavity of the fermentation mixing drum is provided with synchronously rotating spiral blades along its axial direction. The rotating spiral blades drive the fertilizer from the feed end to the discharge end of the fermentation mixing drum. The fermentation mixing drum includes a cylinder surrounded by several circumferentially distributed arc-shaped main plates, and feed end caps and discharge end caps respectively covering the two ends of the cylinder. The arc-shaped main plates are wavy structures that are bent up and down along their circumference. The side edges of two adjacent arc-shaped main plates are stacked inside and outside and fixed by fastening screws. The inner end faces of the feed end cap and the discharge end cap are provided with annular linkage plates that are consistent with the wavy structure of the arc-shaped main plates. The corresponding end edges of the annular linkage plates and the arc-shaped main plates are stacked inside and outside and fixed by fastening screws.

[0007] In the above-mentioned fertilizer mixing and fermentation device, each of the arc-shaped main plates is divided into several arc-shaped combination plates along the axial direction. The annular connecting plate has the same wave-like structure as the arc-shaped combination plates. The corresponding ends of two adjacent arc-shaped combination plates are respectively stacked on the inner and outer sides of the annular connecting plate and fixed by fastening screws.

[0008] In the above-mentioned fertilizer mixing and fermentation device, the two ends of the cylinder are respectively fitted with support ring sleeves that rotate with the outside. The cylinder is fitted with a drive gear sleeve that is connected to the external power source. The inner ring edge of the drive gear sleeve and the support ring sleeve extends outward to form a connecting part. The connecting part is fixedly connected to the arc-shaped main plate of the cylinder by fastening screws.

[0009] In the above-mentioned fertilizer mixing and fermentation device, the feed end cover is provided with a feed assembly hole along its axis, and the lower end of the feed hopper, which is fixedly matched with the outside, is rotatably matched with the feed assembly hole.

[0010] The unloading end cover has an exhaust assembly hole along its axis, and the inner end of the exhaust pipe body, which is fixedly matched with the outside, is rotatably matched with the exhaust assembly hole.

[0011] In the above-mentioned fertilizer mixing and fermentation device, the outer end face of the feed end cover is provided with a feed assembly ring that is sleeved on the lower end of the feed hopper, and a feed mating groove is formed between the feed assembly ring and the feed end cover. The lower end of the feed hopper is provided with a feed rotating protrusion that is rotatably fitted in the feed mating groove.

[0012] The outer end face of the unloading end cover is provided with an exhaust assembly ring that is looped around the inner end of the exhaust pipe body. An exhaust mating groove is formed between the exhaust assembly ring and the unloading end cover. An exhaust rotation protrusion that is rotatably fitted in the exhaust mating groove is provided at the inner end of the exhaust pipe body.

[0013] In the above-mentioned fertilizer mixing and fermentation device, the inner end face of the discharge end cover is provided with an exhaust cover that completely covers the exhaust assembly hole. The outer ring wall of the exhaust cover has several exhaust branch pipes arranged radially along the cylinder. The inner port of the exhaust branch pipe is connected to the exhaust assembly hole, the outer port of the exhaust branch pipe is connected to the inner cavity of the cylinder, and a filter screen is provided at the outer port of the exhaust branch pipe.

[0014] In the above-mentioned fertilizer mixing and fermentation device, the discharge end cover is provided with a discharge port, and a discharge valve plate that can completely block the discharge port is hinged at the discharge port. The discharge end cover is connected to a drive component that is in transmission cooperation with the discharge valve plate through a bracket. The drive component drives the discharge valve plate to rotate hingedly to achieve the blocking or opening of the discharge port.

[0015] In the above-mentioned fertilizer mixing and fermentation device, the outer end of the exhaust pipe is connected to the negative pressure source, an internal temperature sensor is provided on the inner cavity of the fermentation mixing drum, and an external temperature sensor for detecting the surface temperature of the fermentation mixing drum is provided on the outer side of the fermentation mixing drum. Both the internal and external temperature sensors are electrically connected to the control assembly, and the control assembly controls the working state of the negative pressure source according to the signal from the internal or external temperature sensor.

[0016] In the above-mentioned fertilizer mixing and fermentation device, there are two or more spiral blades that are evenly distributed circumferentially on the inner wall of the cylinder, and the corresponding ends of the spiral blades extend spirally to the port where the cylinder is connected to the discharge end cover.

[0017] The outstanding advantages of this utility model compared to the prior art are:

[0018] The cylindrical body of this utility model is assembled from several arc-shaped main boards, and the arc-shaped main boards are designed with a wave-like structure. This not only facilitates the assembly, disassembly and cleaning of the cylindrical body, but also gives the cylindrical body sufficient support strength and a lighter overall weight, effectively reducing the cost required for the manufacture, transportation and storage of the cylindrical body. Attached image description:

[0019] Figure 1 This is a three-dimensional view of the entire utility model;

[0020] Figure 2 This is a structural diagram showing the fit between the two arc-shaped combined plates and between the arc-shaped combined plate and the annular connecting plate of this utility model;

[0021] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 4 This is an overall sectional view of the present invention;

[0023] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0024] Figure 6 yes Figure 5 A magnified view of a section at point C.

[0025] In the diagram: 1. Spiral blade; 2. Cylinder; 3. Feed end cover; 4. Discharge end cover; 5. Annular linkage plate; 6. Arc-shaped combination plate; 7. Annular connecting plate; 8. Support ring sleeve; 9. Drive gear sleeve; 10. Feed hopper; 11. Exhaust pipe body; 12. Feed assembly ring; 13. Feed rotation protrusion; 14. Exhaust assembly ring; 15. Exhaust rotation protrusion; 16. Exhaust main cover; 17. Exhaust branch pipe; 18. Discharge valve plate; 19. Drive assembly. Detailed implementation method:

[0026] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —6:

[0027] A fertilizer mixing and fermentation device includes a transversely arranged fermentation mixing drum. The inner cavity of the fermentation mixing drum is provided with synchronously rotating spiral blades 1 along its axial direction. The rotating spiral blades 1 drive the fertilizer from the feed end to the discharge end of the fermentation mixing drum. The fermentation mixing drum includes a cylinder 2 surrounded by several circumferentially distributed arc-shaped main plates, and a feed end cover 3 and a discharge end cover 4 respectively covering the two ends of the cylinder 2. The arc-shaped main plates are wavy structures that are bent up and down along their circumference. The side edges of two adjacent arc-shaped main plates are stacked inside and outside and fixed by fastening screws. The inner end faces of the feed end cover 3 and the discharge end cover 4 are provided with annular linkage plates 5 that are consistent with the wavy structure of the arc-shaped main plates. The corresponding end edges of the annular linkage plates 5 and the arc-shaped main plates are stacked inside and outside and fixed by fastening screws.

[0028] The cylindrical body 2 of this utility model is assembled from several arc-shaped main boards, and the arc-shaped main boards are designed with a wave-like structure. This not only facilitates the assembly, disassembly and cleaning of the cylindrical body 2, but also gives the cylindrical body 2 sufficient support strength and a lighter overall weight, effectively reducing the cost required for the manufacture, transportation and storage of the cylindrical body 2.

[0029] Considering the relatively long overall length of the cylinder 2, the arc-shaped main board also presents inconveniences in manufacturing, transportation, and storage. Therefore, this embodiment further optimizes the structure of the arc-shaped main board: each of the arc-shaped main boards is divided into several arc-shaped combination plates 6 along the axial direction. The annular connecting plate 7 has the same wave-like structure as the arc-shaped combination plate 6. The corresponding ends of two adjacent arc-shaped combination plates 6 are respectively stacked on the inner and outer sides of the annular connecting plate 7 and fixed by fastening screws.

[0030] To ensure stable rotation of the cylinder 2, support ring sleeves 8 are fitted at both ends of the cylinder 2 to rotate with external components. A drive gear sleeve 9, connected to an external power source, is fitted on the cylinder 2. The inner edges of the drive gear sleeve 9 and the support ring sleeves 8 extend outwards to form a connecting portion, which is fixedly connected to the arc-shaped main plate of the cylinder 2 by fastening screws. Furthermore, in this embodiment, the drive gear sleeve 9 and the two support ring sleeves 8 are respectively fitted onto the same circumferential surface of an annular connecting plate 7. Correspondingly, the tail end of the fastening screw penetrates radially inwards through the connecting portion and the arc-shaped combined plate 6 and is screwed onto the corresponding annular connecting plate 7.

[0031] Furthermore, since the fermentation mixing drum needs to rotate during fertilizer fermentation, the fermentation material can be added simultaneously by opening the feed end cover 3. However, this design requires significant manpower and is very inconvenient. Therefore, in this embodiment, the feed end cover 3 has a feed assembly hole along its axis, and the lower end of the feed hopper 10, which is fixedly fitted to the outside, is rotatably fitted onto the feed assembly hole; that is, the feed hopper 10 is fixed relative to the fermentation mixing drum, and the fermentation material can be fed into the fermentation mixing drum simply by feeding it into the feed hopper 10.

[0032] The feeding hopper 10 and the feeding end cover 3 can be rotated and fitted by bearings. In this embodiment, the outer end face of the feeding end cover 3 is provided with a feeding assembly ring 12 that is sleeved on the lower end of the feeding hopper 10. The feeding assembly ring 12 and the feeding end cover 3 form a feeding mating groove. The lower end of the feeding hopper 10 is provided with a feeding rotation protrusion 13 that is rotatably fitted in the feeding mating groove.

[0033] Meanwhile, considering that the fermentation material will generate a lot of heat during the fermentation process, in order to effectively dissipate heat inside the fermentation mixing drum, the unloading end cover 4 is provided with an exhaust assembly hole along its axis, and the inner end of the exhaust pipe body 11, which is fixedly matched with the outside, is rotatably matched with the exhaust assembly hole.

[0034] Similar to the rotating fit structure between the feed hopper 10 and the feed end cover 3, the outer end face of the discharge end cover 4 is provided with an exhaust assembly ring 14 that is looped around the inner end of the exhaust pipe body 11. An exhaust fit groove is formed between the exhaust assembly ring 14 and the discharge end cover 4. An exhaust rotation protrusion 15 that is rotatably fitted in the exhaust fit groove is provided at the inner end of the exhaust pipe body 11.

[0035] Since the liquid level of the fermentation material inside the fermentation mixing drum may be higher than the position of the exhaust assembly hole, when the fermentation mixing drum is rotating, in order to allow the high-temperature gas inside the fermentation mixing drum to be discharged outward through the exhaust pipe body 11, the inner end face of the discharge end cover 4 is provided with an exhaust main cover 16 that completely covers the exhaust assembly hole. The outer ring wall of the exhaust main cover 16 is circumferentially distributed with a number of exhaust branch pipes 17 arranged radially along the cylinder 2. The inner port of the exhaust branch pipe 17 is connected to the exhaust assembly hole, and the outer port of the exhaust branch pipe 17 is connected to the inner cavity of the cylinder 2. A filter screen is provided at the outer port of the exhaust branch pipe 17 to prevent the fermentation material from entering the exhaust branch pipe 17.

[0036] Furthermore, to allow the fermented fertilizer to be discharged from the discharge end of the fermentation mixing drum, a discharge port is provided on the discharge end cover 4. A discharge valve plate 18, which can completely seal the discharge port, is hinged at the discharge port. The discharge end cover 4 is connected to a drive assembly 19, which is in transmission cooperation with the discharge valve plate 18, via a bracket. The drive assembly 19 drives the discharge valve plate 18 to rotate hingedly, thereby sealing or opening the discharge port. The drive assembly 19 can be a telescopic cylinder or a telescopic motor. A push linkage plate is provided on the outer wall of the discharge valve plate 18. A mating slot is vertically opened on the discharge linkage plate. The telescopic end of the drive cylinder is slidably engaged with the mating slot via a pin.

[0037] In this embodiment, the fermentation material enters the fermentation mixing drum from the feed hopper 10 for fermentation. During the fermentation process, the fermentation mixing drum drives the spiral blades 1 to rotate in both directions to achieve stirring, mixing, and turning of the fermentation material in the fermentation mixing drum. When the fermentation material is fermented to form fertilizer, the fertilizer moves to the discharge end of the fermentation mixing drum under the rotation of the spiral blades 1. The discharge valve plate 18 is driven by the drive assembly 19 to rotate outward and open the discharge port. Under the slow rotation of the fermentation mixing drum and the spiral blades 1, the waste is gradually discharged from the discharge port.

[0038] Furthermore, to further improve the automated control of exhaust temperature within the fermentation mixing drum, the outer end of the exhaust pipe is connected to a negative pressure source. An internal temperature sensor is installed on the inner cavity of the fermentation mixing drum, and an external temperature sensor is installed on the outer side of the fermentation mixing drum to detect the surface temperature of the fermentation mixing drum. Both the internal and external temperature sensors are electrically connected to the control assembly, which controls the operating state of the negative pressure source based on the signals from the internal or external temperature sensors. In this embodiment, the internal temperature sensor is a thermistor temperature sensor, and the external temperature sensor is an infrared temperature sensor.

[0039] In addition, the spiral blades 1 are provided in two or more and are evenly distributed on the inner wall surface of the cylinder 2, and the corresponding ends of the spiral blades 1 extend spirally to the port where the cylinder 2 is connected to the unloading end cover 4.

[0040] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A fertilizer mixing and fermentation device, characterized in that: The fermentation mixing drum includes a horizontally arranged fermentation mixing drum. The inner cavity of the fermentation mixing drum is provided with synchronously rotating spiral blades (1) along its axial direction. The rotating spiral blades (1) drive the fertilizer from the feed end of the fermentation mixing drum to its discharge end. The fermentation mixing drum includes a cylinder (2) surrounded by several circumferentially distributed arc-shaped main plates, and a feed end cover (3) and a discharge end cover (4) respectively covering the two ends of the cylinder (2). The arc-shaped main plates are wavy structures that are bent up and down along their circumference. The side edges of two adjacent arc-shaped main plates are stacked inside and outside and fixed by fastening screws. The inner end faces of the feed end cover (3) and the discharge end cover (4) are provided with annular linkage plates (5) that are consistent with the wavy structure of the arc-shaped main plates. The annular linkage plates (5) and the corresponding end edges of the arc-shaped main plates are stacked inside and outside and fixed by fastening screws.

2. The fertilizer stirring and fermentation device according to claim 1, characterized in that: Each of the arc-shaped main plates is divided into several arc-shaped combination plates (6) along the axial direction. The annular connecting plate (7) has the same wave-like structure as the arc-shaped combination plate (6). The corresponding ends of two adjacent arc-shaped combination plates (6) are respectively stacked inside and outside the two sides of the annular connecting plate (7) and fixed by fastening screws.

3. The fertilizer stirring and fermentation device according to claim 1, characterized in that: The two ends of the cylinder (2) are respectively fitted with support ring sleeves (8) that rotate with the outside. The cylinder (2) is fitted with a drive gear sleeve (9) that is connected to the external power source. The inner ring edge of the drive gear sleeve (9) and the support ring sleeve (8) extends outward to form a connecting part. The connecting part is fixedly connected to the arc-shaped main plate of the cylinder (2) by fastening screws.

4. The fertilizer stirring and fermentation device according to claim 1, characterized in that: The feed end cap (3) has a feed assembly hole along its axis, and the lower end of the feed hopper (10) which is fixedly matched with the outside is rotatably matched on the feed assembly hole. The unloading end cap (4) has an exhaust assembly hole along its axis, and the inner end of the exhaust pipe body (11) which is fixedly matched with the outside is rotatably matched on the exhaust assembly hole.

5. The fertilizer stirring and fermentation device according to claim 4, characterized in that: The outer end face of the feed end cover (3) is provided with a feed assembly ring (12) that is looped around the lower end of the feed hopper (10). A feed mating groove is formed between the feed assembly ring (12) and the feed end cover (3). A feed rotation protrusion (13) that is rotatably fitted in the feed mating groove is provided at the lower end of the feed hopper (10). The outer end face of the unloading end cover (4) is provided with an exhaust assembly ring (14) that is sleeved on the inner end of the exhaust pipe body (11). An exhaust mating groove is formed between the exhaust assembly ring (14) and the unloading end cover (4). An exhaust rotation protrusion (15) that is rotatably fitted in the exhaust mating groove is provided on the inner end of the exhaust pipe body (11).

6. The fertilizer stirring and fermentation device according to claim 4, characterized in that: The inner end face of the unloading end cover (4) is provided with an exhaust cover (16) that completely covers the exhaust assembly hole. The outer ring wall of the exhaust cover (16) is evenly distributed with a number of exhaust branch pipes (17) arranged radially along the cylinder (2). The inner port of the exhaust branch pipe (17) is connected to the exhaust assembly hole, and the outer port of the exhaust branch pipe (17) is connected to the inner cavity of the cylinder (2). A filter screen is provided at the outer port of the exhaust branch pipe (17).

7. A fertilizer stirring and fermentation device according to claim 1 or 4, characterized in that: The unloading end cover (4) is provided with an unloading port, and an unloading valve plate (18) that can completely block the unloading port is hinged at the unloading port. The unloading end cover (4) is connected to a drive assembly (19) that is in transmission cooperation with the unloading valve plate (18) through a bracket. The drive assembly (19) drives the unloading valve plate (18) to rotate hingedly in order to block or open the unloading port.

8. A fertilizer stirring and fermentation device according to claim 4 or 6, characterized in that: The outer end of the exhaust pipe is connected to the negative pressure source. An internal temperature sensor is installed on the inner cavity of the fermentation stirring drum, and an external temperature sensor is installed on the outer side of the fermentation stirring drum to detect the surface temperature of the fermentation stirring drum. Both the internal and external temperature sensors are electrically connected to the control assembly, and the control assembly controls the working state of the negative pressure source according to the signal from the internal or external temperature sensor.

9. The fertilizer stirring and fermentation device according to claim 1, characterized in that: The spiral blades (1) are provided in two or more and are evenly distributed on the inner wall surface of the cylinder (2) in a circumferential direction. The corresponding ends of the spiral blades (1) extend spirally to the port where the cylinder (2) is connected to the unloading end cover (4).

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