Granular organic fertilizer production granulator

Abstract

The invention relates to the technical field of granulators, in particular to a granular organic fertilizer production granulator which comprises two spiral feeders which are oppositely and coaxially arranged, a feeding linkage unit is arranged between the two adjacent ends of the two spiral feeders, a main driving unit is arranged below the feeding linkage unit, and the main driving unit is connected with the spiral feeders. Screw-type extruders are respectively and fixedly arranged below the two screw-type feeders, a granule granulating mechanism is respectively arranged at a material extruding pipe orifice at the bottom of each screw-type extruder, and the feeding ends at the upper parts of the two screw-type feeders are both connected with a raw material feeder. When the granulating machine is used for granulating and forming granular organic fertilizer, the raw material feeder at the top is used for feeding, and the fertilizer raw materials can be conveyed in the left direction and the right direction respectively under the action of the spiral feeders on the two sides after feeding; therefore, the purpose of improving the extrusion efficiency or simultaneously producing two types of granular fertilizers with different lengths is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of granulators, in particular to a granulator for producing granular organic fertilizers. Background Art

[0002] In the production and preparation process of granular organic fertilizer, it is usually necessary to go through processes such as raw material collection and pretreatment, fermentation, crushing, screening and mixing, granulation and drying to obtain granular organic fertilizer.

[0003] Among them, the granulation process mainly uses a granulator to complete the molding of granular fertilizers. The quality of granular molding has a certain impact on the fertilizer efficiency of subsequent fertilizers in use. Therefore, how to ensure the quality of granular products in the granulation process has an important impact on controlling the production quality of organic fertilizers.

[0004] After searching, a fertilizer extrusion granulator is disclosed in the patent document with patent application number CN202322362092.5, whose main structure includes an extrusion granulation tank, a screw is rotatably connected inside the extrusion granulation tank, a driving device is installed at a position corresponding to the screw on the extrusion granulation tank, the driving device is connected to the screw, and a fertilizer raw material feeding hopper is externally connected to the position corresponding to the head end of the screw on the extrusion granulation tank; a granulating assembly is provided at the discharge end of the extrusion granulation tank, and a fertilizer particle pretreatment assembly is provided at the other end of the granulation assembly, and the fertilizer particle pretreatment assembly includes a particle pretreatment pipe, and the particle pretreatment pipe is rotatably connected to a guide vane inside.

[0005] It can be seen from its structure that the above-mentioned fertilizer extrusion granulator pressurizes the raw materials inside the extrusion granulation tank by rotating the screw inside the extrusion granulation tank during operation, and finally extrudes and forms the raw materials through the particle template at the end. However, this granulation structure adopts the horizontal side extrusion method, which is easy to cause the granulated particles to bend. Since the newly extruded particles are relatively soft, they are easy to bend downward under the action of gravity. When the particles are long, the adjacent extruded particles gather and pile up into clumps, which affects the bulk particle forming effect.

[0006] Based on this, the present invention optimizes the design for the problems existing in the prior art, and hereby proposes a granulator for producing granular organic fertilizer to better solve the problems existing in the prior art. Summary of the invention

[0007] The present invention is to solve one of the above technical problems, and the technical scheme adopted is: a granulator for producing granular organic fertilizer, comprising two relatively coaxially arranged screw feeders, a feeding linkage unit is arranged between two adjacent ends of the two screw feeders, a total driving unit is arranged below the feeding linkage unit, and the total driving unit is used to drive the two screw feeders to synchronously reversely feed, screw extruders are respectively fixedly arranged below the two screw feeders, the top of each screw extruder is respectively connected to the material discharge end of the corresponding screw feeder above it and the two are internally connected, and a granulating mechanism is respectively installed at the bottom extrusion pipe mouth of each screw extruder, and the granule outlet end of the granulating mechanism is vertically downwardly arranged, the upper feeding ends of the two screw feeders are both connected to a raw material feeder, and the two screw extruders are connected through the extrusion linkage unit.

[0008] In any of the above schemes, it is preferred that the spiral blades arranged inside the two spiral feeders have the same structure but opposite rotation directions, and the bottom of the material discharge end of the spiral feeder is fixed to the top of the feed end of the spiral extruder at its corresponding position.

[0009] In any of the above schemes, it is preferred that the feeding linkage unit includes a horizontally arranged horizontal feeding shaft, both ends of the horizontal feeding shaft are respectively connected to the spiral blade shaft inside the screw feeder at corresponding positions, and a feeding gear is coaxially fixed to the middle outer wall of the horizontal feeding shaft, and the bottom of the feeding gear is meshed with the total drive unit.

[0010] In any of the above schemes, it is preferred that the raw material feeder includes a feed bin arranged above the feeding gear, and the bottom of the feed bin is connected to the upper feed end of the corresponding spiral feeder below it through a two-way pipe.

[0011] In any of the above schemes, it is preferred that the total drive unit includes a vertically arranged total drive gear, the top of the total drive gear is meshed with the feeding gear, the bottom of the total drive gear is meshed with the top of the extrusion linkage unit, the right end of the gear shaft of the total drive gear is connected to the drive motor, and the drive motor is fixed to the top of the screw extruder at the corresponding position through a motor frame.

[0012] In any of the above schemes, it is preferred that the extruder screws arranged inside the two screw extruders have the same structure but opposite rotation directions, and the bottom of the bottom extrusion nozzle in the screw extruder is fixed to the top of the feed end of the particle granulation mechanism at its corresponding position.

[0013] In any of the above schemes, it is preferred that the extrusion linkage unit includes a horizontally arranged horizontal extrusion shaft, both ends of the horizontal extrusion shaft are respectively connected to the ends of the extruder screw inside the screw extruder at corresponding positions, and an extrusion gear is coaxially fixed to the middle outer wall of the horizontal extrusion shaft, and the top of the extrusion gear is meshed with the total drive gear of the total drive unit.

[0014] In any of the above schemes, it is preferred that the particle granulation mechanism includes an extrusion tube bin vertically installed at the bottom of the bottom extrusion nozzle of the screw extruder, a feed nozzle is arranged at the top of the extrusion tube bin, a collection extrusion cavity is arranged inside the extrusion tube bin, and a forming extrusion plate with a plurality of particle extrusion holes is arranged at the bottom of the collection extrusion cavity, the center of the forming extrusion plate protrudes upward and extends to the inside of the collection extrusion cavity to form an installation pipe cap part, a cutting motor is vertically fixedly installed in the bottom space of the installation pipe cap part, and a cutting tool is fixedly installed at the lower end of the motor shaft of the cutting motor, the length of the cutting tool is greater than the radius of the forming extrusion plate, and when the cutting tool rotates, it can quickly cut off each granular organic fertilizer vertically extruded from the particle extrusion hole and make it fall downward to the downstream drying and conveying station.

[0015] In any of the above schemes, it is preferred that the spacing between the top of the cutting tool and the bottom of the forming extrusion plate is adjustable; and the two cutting tools are relatively independent in operation.

[0016] In any of the above schemes, preferably, each of the screw extruders is fixed above the ground via ground frames on both sides of the bottom thereof.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The granular organic fertilizer production granulator of the present invention relies on a raw material feeder on the top to feed the granular organic fertilizer. After feeding, the fertilizer raw materials can be transported to the left and right directions respectively under the action of the spiral feeders on both sides, ensuring that the raw materials enter the interior of the spiral extruder in two directions to complete the extrusion molding, so as to achieve the purpose of improving the extrusion efficiency or producing two types of granular fertilizers of different lengths at the same time.

[0018] 2. When the granular organic fertilizer production granulator of the present invention performs granule extrusion molding, the screw extruders on both sides are set to a reverse extrusion and conveying mode, which effectively ensures a bidirectional granulation effect during granule extrusion granulation.

[0019] 3. The control and installation of the corresponding granulation mechanism can effectively receive the material extruded by the corresponding screw extruder and extrude it downward under pressure. The formed thin strips of fertilizer will be continuously cut by the cutting motor driving the cutting tool to continuously run, and finally the extruded fertilizer will be cut into particles of different lengths.

[0020] 4. The particle extrusion holes on the particle granulation mechanisms on both sides are set according to needs, and controlling the corresponding cutting motor speed can effectively ensure the cutting and forming of fertilizer long particles of different lengths, realizing diversified production and granulation of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the partial internal cross-sectional structure of the present invention.

[0024] Figure 3 It is a partial enlarged structural schematic diagram of the total drive unit of the present invention.

[0025] In the figure, 1, screw feeder; 101, material discharge end; 2, screw extruder; 201, bottom extrusion pipe mouth; 3, horizontal feeding shaft; 4, feeding gear; 5, feeding bin; 6, two-way pipe; 7, total drive gear; 8, driving motor; 9, motor frame; 10, horizontal extrusion shaft; 11, extrusion gear; 12, extrusion pipe bin; 13, feeding pipe mouth; 14, aggregate extrusion cavity; 15, particle extrusion hole; 16, forming extrusion plate; 17, installation of pipe cap; 18, cutting motor; 19, cutting tool; 20, connecting ground frame. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-Figure 3 as shown in .

[0027] Embodiment 1: A granulator for producing granular organic fertilizer, comprising two relatively coaxially arranged screw feeders 1, a feeding linkage unit is arranged between the two adjacent ends of the two screw feeders 1, a total drive unit is arranged below the feeding linkage unit, and the total drive unit is used to drive the two screw feeders 1 to synchronously reversely feed, screw extruders 2 are respectively fixedly arranged below the two screw feeders 1, the top of each screw extruder 2 is respectively connected to the material discharge end 101 of the corresponding screw feeder 1 above it and the two are internally connected, and a granulation mechanism is respectively installed at the bottom extrusion pipe mouth 201 of each screw extruder 2, and the granule outlet end of the granulation mechanism is arranged vertically downward, the upper feeding ends of the two screw feeders 1 are connected to a raw material feeder, and the two screw extruders 2 are connected through the extrusion linkage unit.

[0028] The granular organic fertilizer production granulator of the present invention is fixed to the ground as a whole by the ground frame 20 at the bottom of the screw extruder 2. After the granulator is fixedly installed, the raw materials can be continuously fed into the top of the raw material feeder of the granulator through the external feeding equipment. After the raw materials enter the interior of the raw material feeder, they will continue to enter the interior of the screw feeder 1 on the corresponding side. During the operation of the screw feeder 1, the internal materials can be continuously horizontally spirally conveyed. The materials are finally conveyed downward through the corresponding material discharge end 101 and enter the interior of the corresponding screw extruder 2. The materials that continuously enter the interior of the screw extruder 2 are continuously compressed and horizontally conveyed by the extruder screw inside the screw extruder 2 when the screw extruder 2 is working. After the materials are extruded and formed, they are continuously conveyed to the interior of the granulating mechanism below them through the bottom extrusion pipe port 201. The materials are accumulated inside the granulating mechanism and rely on the granulating mechanism to complete granulation under continuous downward pressure. The granulated fertilizers continue to fall to the downstream granule drying or granule conveying station.

[0029] The whole process of material transmission and particle forming is mainly driven by the main drive unit. During the driving process, the screw extruder 2 continuously squeezes the material and presses it downward after accumulation, finally forming organic fertilizer particles in good condition.

[0030] In any of the above schemes, it is preferred that the spiral blades arranged inside the two spiral feeders 1 have the same structure but opposite rotation directions, and the bottom of the material discharge end 101 of the spiral feeder 1 is fixed to the top of the feed end of the spiral extruder 2 at its corresponding position.

[0031] It should be noted that the spiral feeder 1 of the present invention rotates in opposite directions when working, so as to quickly ensure the convenience and efficiency when conveying material particles to the left and right sides.

[0032] In any of the above schemes, it is preferred that the feeding linkage unit includes a horizontally arranged horizontal feeding shaft 3, both ends of the horizontal feeding shaft 3 are respectively connected to the spiral blade shaft inside the screw feeder 1 at their corresponding positions, and a feeding gear 4 is coaxially fixed to the middle outer wall of the horizontal feeding shaft 3, and the bottom of the feeding gear 4 is meshed with the total drive unit.

[0033] It should be noted that the feeding linkage unit mainly serves the purpose of linking the operation of the screw feeders 1 on both sides thereof. During operation, the driving power is input by the main drive unit, and then the feeding gear 4 is driven to rotate under the driving action of the main drive unit. The feeding gear 4 will rely on the horizontal feeding shaft 3 to drive the spiral blades inside the screw feeder 1 to operate.

[0034] In any of the above schemes, it is preferred that the raw material feeder includes a feed bin 5 arranged above the feeding gear 4, and the bottom of the feed bin 5 is connected to the upper feed end of the corresponding screw feeder 1 below it through a two-way pipe 6.

[0035] The raw material feeder continuously feeds into the feed bin 5 through an external feeding device. When the material enters the feed bin 5, it will directly fall to the upper part of the screw feeder 1 and be received by the screw feeder 1. When the screw feeder 1 is running, it can drive the internal material to be transported along the left and right directions and pass through the material discharge end 101 of the screw feeder 1 into the interior of the screw extruder 2 to complete the subsequent extrusion molding of the material.

[0036] In any of the above schemes, it is preferred that the total drive unit includes a vertically arranged total drive gear 7, the top of the total drive gear 7 is meshed with the feeding gear 4, the bottom of the total drive gear 7 is meshed with the top of the extrusion linkage unit, and the right end of the gear shaft of the total drive gear 7 is connected to the drive motor 8, and the drive motor 8 is fixed to the top of the screw extruder 2 at the corresponding position through the motor frame 9.

[0037] When the main drive unit is working, it relies on the driving motor 8 to drive the current main drive gear 7 to operate. During the rotation of the main drive gear 7, the power can be transmitted downstream and drive the extrusion linkage unit to operate.

[0038] In any of the above schemes, it is preferred that the extruder screws arranged inside the two screw extruders 2 have the same structure but opposite rotation directions, and the bottom of the bottom extrusion nozzle 201 in the screw extruder 2 is fixed to the top of the feed end of the particle granulation mechanism at its corresponding position.

[0039] It should be noted that when the screw extruder 2 is working, it mainly relies on the material discharge end 101 of the screw feeder 1 to transport the material into the interior. The material entering the screw extruder 2 will continuously enter the granulation mechanism during the extrusion molding process. The material inside the granulation mechanism is extruded downward to form, and finally achieve the purpose of rapid extrusion molding and cutting into granular fertilizers of a set length.

[0040] In any of the above schemes, it is preferred that the extrusion linkage unit includes a horizontally arranged horizontal extrusion shaft 10, both ends of which are respectively connected to the ends of the extruder screw inside the screw extruder 2 at corresponding positions, and an extrusion gear 11 is coaxially fixed to the middle outer wall of the horizontal extrusion shaft 10, and the top of the extrusion gear 11 is meshed with the total drive gear 7 of the total drive unit.

[0041] The extrusion linkage unit receives the transmission power from the total drive gear 7 of the extrusion total drive unit. During the transmission process, the total drive gear 7 of the total drive unit drives the extrusion gear 11 to operate. When the extrusion gear 11 is operating, the horizontal extrusion shafts 10 at both ends thereof will drive the corresponding extruder screw inside the screw extruder 2 to operate, thereby achieving the purpose of extruding and molding the internal material.

[0042] Embodiment 2: Compared with Embodiment 1, this embodiment is different in that it also includes the following technical features: In any of the above schemes, it is preferred that the particle granulation mechanism includes an extrusion tube bin 12 vertically installed at the bottom of the bottom extrusion nozzle 201 of the screw extruder 2, a feed nozzle 13 is arranged at the top of the extrusion tube bin 12, an aggregate extrusion cavity 14 is arranged inside the extrusion tube bin 12, and a forming extrusion plate 16 with a plurality of particle extrusion holes 15 is arranged at the bottom of the aggregate extrusion cavity 14, the center of the forming extrusion plate 16 protrudes upward and extends to the inside of the aggregate extrusion cavity 14 to form an installation pipe cap portion 17, a cutting motor 18 is vertically fixedly installed in the bottom space of the installation pipe cap portion 17, and a cutting tool 19 is fixedly installed at the lower end of the motor shaft of the cutting motor 18, the length of the cutting tool 19 is greater than the radius of the forming extrusion plate 16, and when the cutting tool 19 rotates, it can quickly cut off each granular organic fertilizer vertically extruded from the particle extrusion hole 15 and make it fall downward to the downstream drying and conveying station.

[0043] When in use, the particle granulating mechanism of the present invention relies on the extrusion tube bin 12 to receive the material extruded from the screw extruder 2. The material is continuously accumulated and compressed inside the aggregate extrusion chamber 14. When compressed to a certain extent, the material can be continuously extruded downward from each particle extrusion hole 15 of the forming extrusion plate 16. After extrusion, the cutting motor 18 is controlled to rotate, thereby driving the cutting tool 19 connected to the motor shaft of the cutting motor 18 to rotate. In the process of the cutting tool 19 rotating and cutting, the formed thin strips of fertilizer can be quickly cut downward continuously. Controlling the extrusion speed and the cutting speed can realize the cutting of fertilizer particles of a certain length on demand.

[0044] Setting the top of the mounting pipe cap portion 17 to be hemispherical can prevent material from piling up on the top or reduce the amount of material piling up on the top, thereby ensuring smoothness during extrusion molding.

[0045] In any of the above solutions, it is preferred that the spacing between the top of the cutting tool 19 and the bottom of the forming extrusion plate 16 is adjustable; and the two cutting tools 19 are relatively independent in operation.

[0046] The cutting tools 19 on both sides operate relatively independently during cutting, which can effectively ensure that the extruded linear material is cut into granules of different lengths according to different lengths, thereby realizing the production of different types of biofertilizer granules on demand.

[0047] In any of the above solutions, preferably, each of the screw extruders 2 is fixed above the ground via ground frames 20 on both sides of the bottom thereof.

[0048] Specific working principle: The granular organic fertilizer production granulator of the present invention is fixed on the ground as a whole by the ground frame 20 at the bottom of the screw extruder 2.

[0049] After the granulator is fixedly installed, raw materials can be continuously fed into the top of the raw material feeder of the granulator through external feeding equipment. When the material enters the feed bin 5, it will directly fall to the upper part of the screw feeder 1 and be received by the screw feeder 1. When the screw feeder 1 is running, it can drive the internal material to be transported in the left and right directions and pass through the material discharge end 101 of the screw feeder 1 into the interior of the screw extruder 2 to complete the subsequent extrusion molding of the material.

[0050] After the raw material enters the interior of the raw material feeder, it will continue to enter the interior of the screw feeder 1 on the corresponding side.

[0051] During the operation of the screw feeder 1, the material inside can be continuously horizontally spirally conveyed, and the material is finally conveyed downward through the corresponding material discharge end 101 and enters the corresponding screw extruder 2. The material continuously entering the screw extruder 2 is continuously compressed and horizontally conveyed by the extruder screw inside the screw extruder 2 when the screw extruder 2 is working.

[0052] After the material is extruded and formed, it is continuously transported to the granulation mechanism below it through the bottom extrusion pipe port 201. The material is accumulated inside the granulation mechanism and the granulation is completed by the granulation mechanism under continuous downward pressure. The granulated fertilizer granules continuously fall to the downstream granulation drying or granulation conveying station.

[0053] The whole process of material transmission and particle forming is mainly driven by the main drive unit. During the driving process, the screw extruder 2 continuously squeezes the material and presses it downward after accumulation, finally forming organic fertilizer particles in good condition.

[0054] In summary, it can be seen that the granular organic fertilizer production granulator in the present invention relies on a raw material feeder on the top to feed the granular organic fertilizer. After feeding, the fertilizer raw materials can be transported to the left and right directions respectively under the action of the spiral feeders 1 on both sides, ensuring that the raw materials enter the spiral extruder 2 in two directions to complete the extrusion molding, so as to achieve the purpose of improving the extrusion efficiency or producing two types of granular fertilizers of different lengths at the same time; when the granular organic fertilizer production granulator is performing granule extrusion molding, the spiral extruders 2 on both sides are set to a reverse extrusion conveying mode, which effectively ensures that the granules are extruded. Bidirectional granulation effect during extrusion granulation; controlling and installing the corresponding granulation mechanism can effectively receive the material extruded by the corresponding screw extruder 2 and continuously extrude it downward under pressure, and the formed thin strip columnar fertilizer will continuously cut the extruded material while the cutting motor 18 drives the cutting tool 19 to continuously run, and finally achieve the purpose of cutting the extruded fertilizer into particles of different lengths; the particle extrusion holes 15 on the particle granulation mechanisms on both sides are set according to needs, and controlling the corresponding cutting motor 18 speed can effectively ensure the cutting and forming of fertilizer long strip particles of different lengths, realizing diversified production granulation of products.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the protection scope of the present invention.

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A granulator for producing granular organic fertilizer, characterized in that: It comprises two relatively coaxially arranged screw feeders, a feeding linkage unit is arranged between two adjacent ends of the two screw feeders, a total driving unit is arranged below the feeding linkage unit, and the total driving unit is used to drive the two screw feeders to synchronously reversely feed materials, screw extruders are respectively fixedly arranged below the two screw feeders, the top of each screw extruder is respectively connected to the material discharge end of the corresponding screw feeder above it and the two are internally connected, a particle granulating mechanism is respectively installed at the bottom extrusion pipe mouth of each screw extruder, and the particle outlet end of the particle granulating mechanism is vertically downwardly arranged, the upper feeding ends of the two screw feeders are connected to a raw material feeder, and the two screw extruders are connected through the extrusion linkage unit.

2. The granulator for producing granular organic fertilizer according to claim 1, characterized in that: The spiral blades arranged inside the two spiral feeders have the same structure but opposite rotation directions, and the bottom of the material discharge end of the spiral feeder is fixed to the top of the feed end of the spiral extruder at its corresponding position.

3. A granulator for producing granular organic fertilizer according to claim 2, characterized in that: The feeding linkage unit includes a horizontal feeding shaft arranged horizontally, and both ends of the horizontal feeding shaft are respectively connected to the spiral blade shaft inside the spiral feeder at corresponding positions thereof, and a feeding gear is coaxially fixedly connected to the outer side wall of the middle part of the horizontal feeding shaft, and the bottom of the feeding gear is meshed with the total drive unit.

4. The granulator for producing granular organic fertilizer according to claim 3, characterized in that: The raw material feeder comprises a feed bin arranged above the feeding gear, and the bottom of the feed bin is connected to the upper feed end of the corresponding spiral feeder below it through a two-way pipe.

5. A granulator for producing granular organic fertilizer according to claim 4, characterized in that: The total drive unit includes a vertically arranged total drive gear, the top of the total drive gear is meshed with the feeding gear, the bottom of the total drive gear is meshed with the top of the extrusion linkage unit, the right end of the gear shaft of the total drive gear is connected to the drive motor, and the drive motor is fixed to the top of the screw extruder at the corresponding position through a motor frame.

6. A granulator for producing granular organic fertilizer according to claim 5, characterized in that: The extruder screws arranged inside the two screw extruders have the same structure but opposite rotation directions, and the bottom of the bottom extrusion nozzle in the screw extruder is fixed to the top of the feed end of the particle granulation mechanism at its corresponding position.

7. A granulator for producing granular organic fertilizer according to claim 6, characterized in that: The extrusion linkage unit includes a horizontal extrusion shaft arranged horizontally, and both ends of the horizontal extrusion shaft are respectively connected to the ends of the extruder screw inside the screw extruder at corresponding positions thereof, and an extrusion gear is coaxially fixedly connected to the outer side wall of the middle part of the horizontal extrusion shaft, and the top of the extrusion gear is meshed with the total drive gear of the total drive unit.

8. The granulator for producing granular organic fertilizer according to claim 7, characterized in that: The particle granulating mechanism includes an extrusion tube bin vertically installed at the bottom of the bottom extrusion tube port of the screw extruder, a feed tube port is arranged at the top of the extrusion tube bin, an aggregate extrusion cavity is arranged inside the extrusion tube bin, and a forming extrusion plate with a plurality of particle extrusion holes is arranged at the bottom of the aggregate extrusion cavity. The center of the forming extrusion plate protrudes upward and extends to the inside of the aggregate extrusion cavity to form a mounting pipe cap portion, a cutting motor is vertically fixedly installed in the bottom space of the mounting pipe cap portion, and a cutting tool is fixedly installed at the lower end of the motor shaft of the cutting motor. The length of the cutting tool is greater than the radius of the forming extrusion plate. When the cutting tool rotates, it can quickly cut off each granular organic fertilizer vertically extruded from the particle extrusion hole and make it fall downward to the downstream drying and conveying station.

9. A granulator for producing granular organic fertilizer according to claim 8, characterized in that: The spacing between the top of the cutting tool and the bottom of the forming extrusion plate can be adjusted; the two cutting tools are relatively independent in operation.

10. The granulator for producing granular organic fertilizer according to claim 9, characterized in that: Each of the screw extruders is fixed above the ground through ground-connecting frames on both sides of the bottom thereof.

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