Sugarcane nitrogen-fixing bacterial agent drying and crushing equipment

Abstract

The invention relates to the technical field of solid material drying and smashing, and discloses sugarcane nitrogen-fixing microbial inoculum drying and smashing equipment which comprises a drying machine, an auger conveyor and a smashing machine body, a first supporting seat is arranged at the bottom of the drying machine, and a second supporting seat is arranged at the bottom of the smashing machine body. A crushing chamber is arranged under the crusher body, the two ends of the auger conveyor are located under the drying machine and over the crusher body respectively, the drying machine is arranged on one side of the top of the first supporting seat, and a heat recovery mechanism is arranged on the other side of the top of the first supporting seat. A screening mechanism is arranged on one side of the top of the second supporting base. The heat energy utilization rate is increased through a closed hot gas recovery system, automatic connection of drying and smashing links is achieved through auger conveying and blast conveying, efficient flow dividing is achieved in combination with power sweeping and a double-layer screening structure, the energy efficiency, the screening precision and the product percent of pass are remarkably improved, and continuous and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of solid material drying and crushing, and specifically to a drying and crushing device for sugarcane nitrogen-fixing bacteria agents. Background Art

[0002] At present, with the continuous development of agricultural production, sugarcane nitrogen-fixing bacteria agents, as an important biological fertilizer, have been widely used in agricultural production. Especially in sugarcane planting, they can effectively promote the soil nitrogen cycle, improve soil fertility and crop yield. However, in the production process, how to efficiently and energy-savingly dry and crush sugarcane nitrogen-fixing bacteria agents remains a technical problem. During the drying process, the removal of moisture and the effective recovery of hot air, and during the crushing process, how to finely screen the bacteria agent particles and ensure the efficient transportation of materials all face great challenges.

[0003] In view of the above problems, in the prior art, many devices adopt a single drying and crushing step, usually carried out separately. This step-by-step treatment not only results in uncoordinated operation of the device, but also has the problem of low energy utilization efficiency. Most drying devices only heat materials through external heat sources and it is difficult to recycle hot air. At the same time, the screening method of the crushing device is too simple, the particle screening is not fine enough, and there are often cases where unqualified particles cannot be excluded in time.

[0004] In addition, the existing drying and crushing devices generally have some significant deficiencies. First, the thermal energy utilization efficiency is relatively low, and most of the hot air generated during the drying process is wasted and cannot be effectively recycled. Second, most of the screening systems in the crushing process are not designed precisely enough to accurately separate particles of different particle sizes, resulting in some unqualified particles being left in the finished product, affecting the quality of the product. Moreover, during the operation of the device, the transportation and flow of materials rely relatively on manual operation and lack sufficient automation support, resulting in a decrease in production efficiency. In addition, the structural design of the existing device is relatively loose, and the coordination between modules is poor, which easily leads to unsmooth transportation and processing of materials, further affecting the stability and continuous operation ability of the device. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a drying and crushing device for sugarcane nitrogen-fixing bacteria agents, which solves the problems of insufficient heat energy recovery, low screening accuracy, and poor material transportation efficiency in the existing drying and crushing devices for sugarcane nitrogen-fixing bacteria agents.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent, comprising a dryer, a screw conveyor, and a pulverizer main body. A support base one is provided at the bottom of the dryer, and a support base two is provided at the bottom of the pulverizer main body. A pulverizing chamber is provided directly below the pulverizer main body. The two ends of the screw conveyor are respectively located directly below the dryer and directly above the pulverizer main body. A dryer is provided on one side of the top of the support base one, and a heat recovery mechanism is provided on the other side of the top of the support base one. A screening mechanism is provided on one side of the top of the support base two, and a blower is provided on the other side of the top of the support base two. The screening mechanism includes a collection box one, a bacteria agent collection component, a screening component, and a power component. The power component is located directly below the screening component, and the collection box one is located directly in front of the power component. The screening component includes a screening chamber, which is fixedly connected to the side wall of the pulverizing chamber. A screening plate one is installed on the side of the screening chamber close to the pulverizing chamber, and a screening plate two is provided in the middle of the screening chamber. The aperture of the screening plate two is smaller than the aperture of the screening plate one.

[0007] Preferably, the bacteria agent collection component includes a bacteria agent collection box. A drawer cabinet is slidably connected inside the bacteria agent collection box. A fan is installed at the center of the top of the bacteria agent collection box, and a conveying pipe two is installed at the top of the fan. The end of the conveying pipe two away from the fan is fixedly connected to the inside of the screening chamber, and the end of the conveying pipe two is located between the screening plate one and the screening plate two.

[0008] Preferably, a conveying pipe one is provided at the center of the top of the collection box one, and the top of the conveying pipe one is located inside the screening chamber.

[0009] Preferably, the power component includes an outer box. A partition is fixedly connected to one side inside the outer box. A driving motor two is provided on the top of the partition. The output end of the driving motor two is fixedly connected to a turntable. A stress rod is provided on the side of the turntable away from the driving motor two. The stress rod is fixedly connected at a position away from the center of the turntable. A slider is slidably connected inside the outer box. The stress rod is slidably connected inside the slider. A top rod is fixedly connected to the top of the slider, and a brush plate is installed at the end of the top rod.

[0010] Preferably, two limiting bent rods are symmetrically provided at the end of the stress rod, and two sliding grooves are symmetrically opened on the outer side of the slider. The limiting bent rods are slidably connected inside the sliding grooves.

[0011] Preferably, the output end of the blower is fixedly connected to a first air delivery pipe, and one end of the first air delivery pipe far from the blower is fixedly connected to the inside of the crushing chamber. A second air delivery pipe is installed inside the first air delivery pipe, and one end of the second air delivery pipe far from the first air delivery pipe is fixedly connected to the end of the screening chamber.

[0012] Preferably, a driving assembly is arranged outside the main body of the crusher. The driving assembly includes a first driving motor, and a motor support seat is arranged at the bottom of the first driving motor. Two hob cutters are arranged inside the crushing chamber, and the output end of the first driving motor is fixedly connected to the end of one of the hob cutters. Transmission gears are installed at the ends of the two hob cutters far from the first driving motor, and the two transmission gears are meshed with each other.

[0013] Preferably, the heat recovery mechanism includes a gas drying assembly. The gas drying assembly includes a drying box. A plurality of groups of side sliding guide rails are symmetrically arranged on both sides inside the drying box, and a plurality of drying filter plates are slidably connected between the plurality of groups of side sliding guide rails.

[0014] Preferably, heat recovery pipes are installed on both sides outside the drying box, and one end of each of the two heat recovery pipes far from the drying box is fixedly connected to the inside of the dryer. A hot air release pipe is arranged at the top of the drying box, and the top of the hot air release pipe is fixedly connected to the inside of the dryer.

[0015] Preferably, a heat delivery pipe is fixedly connected to the output end of the dryer, and the top of the heat delivery pipe is located inside the dryer. A feed inlet is installed on one side of the dryer.

[0016] The present invention provides a drying and crushing device for sugarcane nitrogen-fixing bacteria agent. It has the following beneficial effects:

[0017] 1. By setting a closed hot air recovery circulation system, the present invention effectively avoids waste of heat energy. The dryer and the heat recovery mechanism work together. While drying the material, the moisture is timely extracted from the drying chamber and the hot air is reused after being processed by the drying filter plates, improving the thermal efficiency, reducing the energy consumption, and being particularly suitable for continuous material processing occasions.

[0018] 2. The present invention adopts a double structure of auger transportation and air-blowing air flow transportation to realize automatic connection during the process of material drying to crushing. The connection design of the blower with the first air delivery pipe and the second air delivery pipe not only strengthens the suspension and dispersion state of the material during the crushing process, but also effectively assists the particles to pass through the screening process, improving the screening efficiency and the particle size control accuracy.

[0019] 3. The screening mechanism of the present invention uses a brush plate driven by a second driving motor to contact the screening plate periodically for cleaning, preventing particle blockage and thus affecting subsequent screening. Combined with a double-layer screening structure, it realizes the efficient diversion, processing and collection of large particles, qualified particles and fine powder. At the same time, the fan and the second conveying pipe assist in the directional collection of qualified particles, improving the stability of the whole machine and the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present invention;

[0021] Figure 2 is a schematic structural view of the transmission gear of the present invention;

[0022] Figure 3 is a schematic structural view of the dryer of the present invention;

[0023] Figure 4 is a schematic structural view of the drying filter plate of the present invention;

[0024] Figure 5 is a schematic structural view of the second conveying pipe of the present invention;

[0025] Figure 6 is a schematic structural view of the blower of the present invention;

[0026] Figure 7 is a schematic structural view of the brush plate of the present invention;

[0027] Figure 8 is a schematic structural view of the turntable of the present invention.

[0028] Wherein, 1. Dryer; 101. Feed inlet; 2. Screw conveyor; 3. Main body of crusher; 31. Driving assembly; 311. First driving motor; 312. Motor support seat; 313. Transmission gear; 32. Crushing chamber; 321. Hob; 4. Dryer; 401. Heat supply pipe; 5. First support seat; 6. Second support seat; 7. Screening mechanism; 71. First collection box; 711. First conveying pipe; 72. Bactericide collection assembly; 721. Bactericide collection box; 722. Drawer cabinet; 723. Second conveying pipe; 724. Fan; 73. Screening assembly; 731. Screening chamber; 732. First screening plate; 733. Second screening plate; 74. Power assembly; 741. Outer box; 742. Brush plate; 743. Partition; 744. Second driving motor; 745. Turntable; 746. Jack; 747. Slide block; 748. Force-bearing rod; 749. Limit bent rod; 750. Chute; 8. Heat recovery mechanism; 81. Gas drying assembly; 811. Drying box; 812. Side sliding guide rail; 813. Drying filter plate; 82. Hot gas recovery pipe; 83. Hot gas release pipe; 9. Blower; 901. First blast pipe; 902. Second blast pipe. DETAILED DESCRIPTION OF THE INVENTION

[0029] Next, in combination with the accompanying drawings of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] Please refer to the attached Figure 1 - attached Figure 2 , the embodiment of the present invention provides a drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent, including a drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent, including a dryer 1, a screw conveyor 2 and a pulverizer main body 3. An inlet 101 is installed on one side of the dryer 1 for the entry of moist sugarcane nitrogen-fixing bacteria agent. A support base one 5 is arranged at the bottom of the dryer 1 through a support structure to carry the entire drying device. A support base two 6 is arranged at the bottom of the pulverizer main body 3 to ensure its stable operation. A pulverizing chamber 32 is provided directly below the pulverizer main body 3. The screw conveyor 2 is arranged horizontally, and its two ends are respectively correspondingly arranged directly below the dryer 1 and directly above the pulverizer main body 3 to connect the drying and pulverizing links and realize the automatic conveying of the dried materials. A dryer 4 is installed on one side of the top of the support base one 5. The output end of the dryer 4 is connected with a heat delivery pipe 401. The heat delivery pipe 401 extends upward, and its top is located in the internal space of the dryer 1 to form a hot gas circulation path, so that the hot gas enters the dryer 1 to heat and dry the materials. A heat recovery mechanism 8 is installed on the other side of the top of the support base one 5, located above the top of the dryer 1, to process the moisture in the drying process and send the dried hot gas back into the dryer 1 again, thereby forming a closed-loop hot gas flow system. A screening mechanism 7 is provided on one side of the top of the support base two 6 to screen the particle size of the pulverized bacteria agent particles, and a blower 9 is provided on the other side of the top of the support base two 6 to provide the air flow power required in the pulverizing process to realize the synergistic effect of air flow pulverization and particle size classification. The overall structure of the device is compact, the functions of each module are clear, and a continuous operation process of feeding, drying, conveying, pulverizing and screening is formed in sequence.

[0031] Please refer to the attached Figure 5 - attached Figure 8, the screening mechanism 7 includes a first collection box 71, a bactericide collection component 72, a screening component 73, and a power component 74. Among them, the power component 74 is arranged directly below the screening component 73 to provide drive for the screening process. The first collection box 71 is arranged directly in front of the power component 74 to collect small particles or waste particles after secondary screening. The screening component 73 includes a screening chamber 731, which is fixedly connected to the side wall of the crushing chamber 32 so that the crushed bactericide can be directly introduced into the screening chamber 731 for screening. A first screening plate 732 is installed on one side of the screening chamber 731 close to the crushing chamber 32 to preliminarily screen the granular material, enabling the qualified bactericide particles to enter the screening chamber 731, while the larger bactericide particles continue to be processed in the crushing chamber 32 until they are qualified. A second screening plate 733 is arranged in the middle, and its aperture is smaller than that of the first screening plate 732 for further fine screening to screen out particles and impurities that are too small in particle size and unqualified. A first conveying pipe 711 is arranged at the center of the top of the first collection box 71, and the first conveying pipe 711 extends upward into the interior of the screening chamber 731 to realize the automatic conveying of small particles and impurities into the collection box. The bactericide collection component 72 includes a bactericide collection box 721. A drawer cabinet 722 is slidably connected inside the bactericide collection box 721 to facilitate the regular removal of qualified bactericide particles. A fan 724 is installed at the center of the top of the bactericide collection box 721. The fan 724 is used to form an air flow to assist the movement of particles. Its top is connected to the interior of the screening chamber 731 through a second conveying pipe 723. The end of the second conveying pipe 723 far from the fan 724 is fixedly connected to the interior of the screening chamber 731, and its end is located between the first screening plate 732 and the second screening plate 733, so that the bactericide particles meeting the particle size requirements can enter the bactericide collection box 721 by means of the air flow. The power component 74 includes an outer box 741. A partition 743 is fixedly connected to one side inside the outer box 741. A second driving motor 744 is installed on the top of the partition 743. The output end of the second driving motor 744 is fixedly connected to a turntable 745. A force-bearing rod 748 is fixed on the side of the turntable 745 far from the center of the motor. The end of the force-bearing rod 748 is slidably connected inside a slider 747. After starting the second driving motor 744, the slider 747 can slide up and down inside the outer box 741. A vertical upward push rod 746 is connected to its top. A brush plate 742 is installed at the end of the push rod 746. Driven by the push rod 746, the brush plate 742 can contact and clean the first screening plate 732 inside the screening chamber 731, reducing the adhesion of bactericide particles and preventing the blockage of the first screening plate 732 after a long time, realizing a continuous and stable screening process. Two limiting bent rods 749 are symmetrically arranged on both sides of the end of the force-bearing rod 748. Two sliding grooves 750 are opened on the outer side of the slider 747, which are slidably connected and matched with the limiting bent rods 749 to increase the sliding stability of the force-bearing rod 748 inside the slider 747. The entire screening mechanism 7 has a compact structure and coordinated positions between components, which is beneficial to integrating the functions of screening, collection, and power transmission into the same system and improving the operating efficiency of the equipment.

[0032] Please refer to the attached Figure 5 and the attached Figure 6 , the main function of the blower 9 is to provide air flow to support the auxiliary function of the air flow during the crushing and screening processes. The output end of the blower 9 is fixedly connected to the input end of the first air drum pipe 901 through a connecting member. The first air drum pipe 901 is arranged along the equipment structure, and the end far from the blower 9 is fixedly connected to the inside of the crushing chamber 32. The first air drum pipe 901 plays a role in guiding the air flow provided by the blower 9 into the inside of the crushing chamber 32, increasing the contact time between the microbial agent material and the hob 321 in the crushing chamber 32, and also providing the power for the crushed microbial agent to enter the screening chamber 731, driving the crushed microbial agent particles to pass through the first screening plate 732 and the second screening plate 733 for sorting. A second air drum pipe 902 is also installed inside the first air drum pipe 901. The distal end of the second air drum pipe 902 is fixedly connected to the end of the screening chamber 731, so that the unqualified particles and impurities stored in the screening chamber 731 can enter the first collection box 71 through the first conveying pipe 711; the second air drum pipe 902 can also reduce the blockage of the first screening plate 732 and the second screening plate 733 by particles, reducing the retention of materials with unqualified particle sizes, thereby achieving a more efficient crushing and screening effect.

[0033] Please refer to the attached Figure 2 , the attached Figure 5 and the attached Figure 6 , a driving assembly 31 is provided on the outer side of the main body 3 of the crusher. The core part of the driving assembly 31 is the first driving motor 311. The first driving motor 311 is stably installed on the outer side of the main body 3 of the crusher through a motor support seat 312. The output end of the first driving motor 311 is fixedly connected to the end of one of the hobs 321 through a coupling. The power of the first driving motor 311 is transmitted to the hob 321 through this connection, driving it to rotate for crushing work. In order to ensure that the two hobs 321 can rotate synchronously and maintain a stable rotational speed during the crushing process, transmission gears 313 are respectively installed at the ends of the two hobs 321 far from the first driving motor 311. These transmission gears 313 ensure the coordinated operation of the two groups of hobs 321 through meshing with each other. The meshing between the transmission gears 313 ensures the efficient transmission of the driving force and avoids the problem of uneven crushing caused by the asynchronous power between the hobs 321.

[0034] Please refer to the attached Figure 2 - the attached Figure 4, the heat recovery mechanism 8 is mainly used to recover the hot air generated during the drying process and remove moisture through the gas drying component 81, improving the energy utilization efficiency. The core part of the gas drying component 81 is the drying box 811. The design of the drying box 811 takes into account the effective treatment of air flow and the recycling of hot air to ensure that moisture is fully removed. On both sides inside the drying box 811, multiple groups of side-sliding guide rails 812 are symmetrically arranged. Multiple drying filter plates 813 smoothly slide inside the drying box 811 through the side-sliding guide rails 812 to form a series of drying filter layers. The surface and filter layer of the drying filter plates 813 are used to effectively adsorb and filter the moisture in the hot air, improving the air drying effect. On both sides outside the drying box 811, hot air recovery pipes 82 are respectively installed. An intake fan is arranged inside the hot air recovery pipes 82. The hot air recovery pipes 82 can introduce the hot air with moisture in the dryer 1 into the drying box 811 to dehumidify the hot air. One end of the two hot air recovery pipes 82 far from the drying box 811 is connected to the inside of the dryer 1 to ensure the high efficiency of hot air recovery. A hot air release pipe 83 is arranged at the top of the drying box 811. The hot air release pipe 83 is mainly responsible for discharging the hot air filtered inside the drying box 811. The top of the hot air release pipe 83 is fixedly connected to the inside of the dryer 1. Through this connection method, it is ensured that the recovered hot air can be timely and effectively recycled back into the dryer 1 to form a hot air circulation system, improving the energy recovery rate and reducing energy consumption.

[0035] Working principle: The moist sugarcane nitrogen-fixing bacteria agent first enters the dryer 1 through the feed inlet 101. The hot air inside the dryer 1 heats and dries the bacteria agent. During the drying process, the moisture is removed by the heat recovery mechanism 8 and returned to the dryer 1 for reuse. The dried bacteria agent is transported from the bottom of the dryer 1 to the crusher main body 3 through the auger conveyor 2. Inside the crusher main body 3, the dried bacteria agent is crushed by the hob 321, and the blower 9 provides air flow support to bring the crushed bacteria agent particles into the screening chamber 731. Inside the screening mechanism 7, the screening chamber 731 conducts particle size screening through the first screening plate 732 and the second screening plate 733. The qualified bacteria agent particles enter the bacteria agent collection box 721, and the unqualified particles are discharged through the air flow and enter the first collection box 71. The power component 74 of the screening mechanism 7 drives the brush plate 742 to clean the first screening plate 732 through the second drive motor 744 to ensure the smooth progress of the screening process. Finally, the qualified bacteria agent particles screened and collected are sent into the bacteria agent collection box 721, while the unqualified particles and impurities are recycled into the first collection box 71. During the whole process, the hot air is circulated through the air recovery pipe 82 and the hot air release pipe 83 to ensure the effective recovery of energy.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent, comprising a dryer (1), a screw conveyor (2) and a main body of a pulverizer (3), characterized in that, A support base one (5) is provided at the bottom of the dryer (1), a support base two (6) is provided at the bottom of the crusher main body (3), a crushing chamber (32) is provided directly below the crusher main body (3), both ends of the auger conveyor (2) are respectively located directly below the dryer (1) and directly above the crusher main body (3), a dryer (4) is provided on one side of the top of the support base one (5), a heat recovery mechanism (8) is provided on the other side of the top of the support base one (5), a screening mechanism (7) is provided on one side of the top of the support base two (6), a blower (9) is provided on the other side of the top of the support base two (6), the screening mechanism (7) includes a collection box one (71), a fungicide collection component (72), a screening component (73) and a power component (74), the power component (74) is located directly below the screening component (73), and the collection box one (71) is located directly in front of the power component (74), the screening component (73) includes a screening chamber (731), the screening chamber (731) is fixedly connected to the side wall of the crushing chamber (32), a screening plate one (732) is installed on one side of the screening chamber (731) close to the crushing chamber (32), and a screening plate two (733) is provided in the middle of the screening chamber (731), the aperture of the screening plate two (733) is smaller than the aperture of the screening plate one (732).

2. The drying and pulverizing equipment for sugarcane nitrogen-fixing bactericide according to claim 1, characterized in that, The fungicide collection component (72) includes a fungicide collection box (721), a drawer cabinet (722) is slidably connected inside the fungicide collection box (721), a fan (724) is installed at the center of the top of the fungicide collection box (721), and a second conveying pipe (723) is installed at the top of the fan (724), one end of the second conveying pipe (723) far from the fan (724) is fixedly connected to the inside of the screening chamber (731), and the end of the second conveying pipe (723) is located between the screening plate one (732) and the screening plate two (733).

3. A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent according to claim 1, characterized in that, A first conveying pipe (711) is provided at the center of the top of the collection box one (71), and the top of the first conveying pipe (711) is located inside the screening chamber (731).

4. A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent according to claim 1, characterized in that, The power component (74) includes an outer box (741), a partition (743) is fixedly connected to one side inside the outer box (741), a second driving motor (744) is provided on the top of the partition (743), an output end of the second driving motor (744) is fixedly connected to a turntable (745), a stress rod (748) is provided on one side of the turntable (745) far from the second driving motor (744), the stress rod (748) is fixedly connected to a position far from the center of the turntable (745), a slider (747) is slidably connected inside the outer box (741), the stress rod (748) is slidably connected inside the slider (747), a top rod (746) is fixedly connected to the top of the slider (747), and a brush plate (742) is installed at the end of the top rod (746).

5. A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent according to claim 4, characterized in that Two limiting bent rods (749) are symmetrically arranged at the end of the stress rod (748), and two sliding grooves (750) are symmetrically formed on the outer side of the slider (747). The limiting bent rods (749) are slidably connected to the inside of the sliding grooves (750).

6. The drying and pulverizing equipment for sugarcane nitrogen-fixing bacteria agent according to claim 1, wherein The output end of the blower (9) is fixedly connected with a first air delivery pipe (901). One end of the first air delivery pipe (901) far away from the blower (9) is fixedly connected to the inside of the crushing chamber (32). A second air delivery pipe (902) is installed inside the first air delivery pipe (901). One end of the second air delivery pipe (902) far away from the first air delivery pipe (901) is fixedly connected to the end of the screening chamber (731).

7. A drying and crushing device for sugarcane nitrogen-fixing bacteria agent according to claim 1, characterized in that, A driving assembly (31) is arranged outside the crusher main body (3). The driving assembly (31) includes a first driving motor (311). A motor support base (312) is arranged at the bottom of the first driving motor (311). Two hob cutters (321) are arranged inside the crushing chamber (32). The output end of the first driving motor (311) is fixedly connected to the end of one of the hob cutters (321). Transmission gears (313) are installed at the ends of the two hob cutters (321) far away from the first driving motor (311), and the two transmission gears (313) are meshed with each other.

8. A drying and pulverizing device for sugarcane nitrogen-fixing bactericide according to claim 1, characterized in that, The heat recovery mechanism (8) includes a gas drying assembly (81). The gas drying assembly (81) includes a drying box (811). Multiple groups of side sliding guide rails (812) are symmetrically arranged on both sides inside the drying box (811). A plurality of drying filter plates (813) are slidably connected between the multiple groups of side sliding guide rails (812).

9. A drying and pulverizing device for sugarcane nitrogen-fixing bacteria agent according to claim 8, characterized in that, Hot air recovery pipes (82) are installed on both outer sides of the drying box (811). One ends of the two hot air recovery pipes (82) far away from the drying box (811) are fixedly connected to the inside of the dryer (1). A hot air release pipe (83) is arranged at the top of the drying box (811). The top of the hot air release pipe (83) is fixedly connected to the inside of the dryer (1).

10. The drying and pulverizing equipment for sugarcane nitrogen-fixing bacteria agent according to claim 1, characterized in that, The output end of the dryer (4) is fixedly connected with a heat delivery pipe (401). The top of the heat delivery pipe (401) is located inside the dryer (1). A feed inlet (101) is installed on one side of the dryer (1).

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