Proportioning device and method of organic-inorganic compound fertilizer for cigarettes

Abstract

The invention relates to the related technical field of compound fertilizer proportioning devices, in particular to a tobacco organic-inorganic compound fertilizer proportioning device which comprises a support, a mixing tank is fixedly connected to one end of the support, a transmission shaft is connected to one end of the mixing tank through a bearing, and stirring blades are fixedly connected to one side of the surface of the transmission shaft. One end of the transmission shaft is fixedly connected with a driving motor, one side of the surface of the inner wall of the mixing tank is fixedly connected with a first axial baffle, one side of the surface of the mixing tank is fixedly connected with a side plate, and the other side of the surface of the side plate is fixedly connected with a second axial baffle. According to the proportioning device for the organic-inorganic compound fertilizer for the cigarettes, through a first sealing ring at a side plate, a second sealing ring at a discharge port and an openable cover plate of a storage box, the overall sealing performance of the device is effectively enhanced, materials are prevented from being affected with damp, dust is prevented from escaping during mixing, and the problem that use of a traditional device is affected due to sealing defects is solved.

Description

Technical Field

[0001] This invention relates to the technical field of compound fertilizer proportioning devices, and in particular to a proportioning device and method for an organic-inorganic compound fertilizer for tobacco. Background Technology

[0002] Organic-inorganic compound fertilizer for tobacco is a special fertilizer designed to address the decline in organic matter in tobacco fields. It aims to increase soil organic matter, improve the rhizosphere soil of tobacco plants, promote root development, and facilitate application. However, tobacco fields are often located in mountainous and hilly areas with complex terrain, making it difficult for large-scale straw pulverizing and returning machinery to the field. After straw is returned, additional measures such as irrigation and nitrogen fertilizer application are required, making the process relatively difficult and affecting the effectiveness of straw return. Furthermore, tobacco fields continuously cropped in the same location cannot directly return tobacco straw, as this poses a significant ecological risk of pathogen transmission, leading to a lack of straw return. This technology integrates the soil-aggregate structure-improving effect of straw particles with the nutrient supply capacity of nitrogen, phosphorus, and potassium to tobacco plants. It can be applied in holes during transplanting or in strips during ridging, without the need for temporary mixing or preparation, making it convenient to use. It is a key vehicle for promoting ecological tobacco cultivation and realizing the resource utilization of straw while reducing fertilizer use and increasing efficiency. Due to the differences in soil conditions among different tobacco varieties and planting areas, and the different fertilizer requirements of tobacco at different growth stages, compound fertilizers need to be able to precisely mix organic substrates and inorganic nutrients according to needs in order to ensure the improvement of tobacco quality and soil sustainability. Therefore, the demand for specialized mixing devices is becoming increasingly urgent.

[0003] In the current process of organic-inorganic compound fertilizer formulation, traditional organic-inorganic compound fertilizer formulation devices generally suffer from complex structure and cumbersome operation. It is difficult to control the feeding ratio of multiple materials, which is time-consuming, labor-intensive, and difficult to guarantee the formulation accuracy. The stirring or mixing effect of the mixing unit is not good, making it difficult to achieve uniform distribution of organic particles and inorganic fertilizers. In addition, there are also deficiencies in sealing and adaptability. They cannot flexibly adapt to the needs of multiple raw materials and multiple formulations of tobacco-specific fertilizers, and are prone to material moisture or dust leakage during mixing due to sealing defects, affecting formulation efficiency and user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a proportioning device and method for organic-inorganic compound fertilizers for tobacco. This invention addresses the problems of existing organic-inorganic compound fertilizer proportioning devices, which generally suffer from complex structures and cumbersome operations, making it difficult to control the feeding ratio of multiple materials, resulting in time-consuming, labor-intensive processes and difficulty in ensuring proportioning accuracy. Furthermore, the mixing unit's stirring or mixing effect is poor, making it difficult to achieve a uniform distribution of organic particles and inorganic fertilizers. In addition, there are shortcomings in sealing and adaptability; they cannot flexibly adapt to the needs of multiple raw materials and proportions in tobacco-specific fertilizers, and are prone to material dampness or dust dispersion during mixing due to sealing defects, affecting proportioning efficiency and user experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a proportioning device for organic-inorganic compound fertilizer for tobacco, comprising a support, a mixing tank fixedly connected to one end of the support, a drive shaft bearingly connected to one end of the mixing tank, a stirring blade fixedly connected to one side of the drive shaft, a drive motor fixedly connected to one end of the drive shaft, a first axial baffle fixedly connected to one side of the inner wall surface of the mixing tank, a side plate fixedly connected to one side of the surface of the mixing tank, a second axial baffle fixedly connected to the other side of the side plate, and a discharge port fixedly connected to the other end of the mixing tank. A cap is threaded onto one side of the feed inlet surface, and a connecting shell is fixedly connected to the other side of the mixing tank surface. A storage box is fixedly connected to one end of the connecting shell. A first sliding groove is formed on one side of the inner wall surface of the connecting shell, and a second sliding groove is formed on one end of the connecting shell surface. A limit groove is formed on the other end of the connecting shell surface. A guide rail is fixedly connected to one end of the inner wall surface of the connecting shell. A slider is slidably connected to one side of the guide rail surface. A sealing plate is fixedly connected to one end of the slider. A connecting block is fixedly connected to one end of the sealing plate surface. A transmission rod is bearing-connected to one side of the connecting block.

[0006] Preferably, a first sealing ring is fitted and connected to one side of the side plate surface, a second sealing ring is fitted and connected to one end of the outlet surface, and a cover plate is hinged to one end of the storage box.

[0007] Preferably, the mixing tank is inclined, and the storage tank is provided in four sets.

[0008] Preferably, the stirring blades are provided in three sets, and the first axial baffle is provided in three sets.

[0009] Preferably, one side of the mixing tank is provided with a concave structure that matches the size of the side plate, and one end of the discharge port is provided with a concave structure that matches the size of the cap.

[0010] Preferably, the sealing plate is slidably connected to the first sliding groove, and the connecting block is slidably connected to the second sliding groove.

[0011] Preferably, the transmission rod fits into the limiting groove, and the limiting groove is provided in four sets.

[0012] Preferably, the mixing tank is in close contact with the first sealing ring.

[0013] Preferably, the cap fits tightly against the second sealing ring.

[0014] A method for formulating an organic-inorganic compound fertilizer for tobacco, the specific steps of which are as follows:

[0015] S1 Unit Pre-inspection: Check the sealing of the mixing tank, confirm the fit and sealing of the side plate and the mixing tank through the first sealing ring, and the firmness of the threaded connection of the cover at the discharge port to ensure there is no risk of leakage;

[0016] S2 Raw Material Loading: Open the hinged covers of the four storage bins and load straw pellets, urea, diammonium phosphate, and potassium sulfate into the storage bins respectively; after loading, close the covers to prevent the raw materials from getting damp or foreign matter from getting in.

[0017] S3 Proportion Adjustment: For each group of storage bins, manually operate the corresponding transmission rod, insert the transmission rod into the limit groove at different positions, drive the sealing plate to slide along the guide rail and the first sliding groove, adjust the opening of the sealing plate in the connecting shell, control the amount of raw materials fed per unit time in each storage bin, and meet the preset proportion requirements of tobacco compound fertilizer.

[0018] S4 Mixing Operation: Start the drive motor, which drives the transmission shaft to rotate, and the three sets of stirring blades on the surface of the transmission shaft rotate accordingly; the three sets of first axial baffles on the inner wall of the mixing tank cooperate with the second axial baffles on the side plate to stir the raw materials entering the mixing tank through the connecting shell, so that the straw particles and inorganic nutrients are evenly mixed.

[0019] S5 Discharge Collection: After mixing, rotate the cover at the discharge port. Under the sealing action of the second sealing ring, unscrew the cover, and the mixed organic-inorganic compound fertilizer for tobacco will be discharged from the discharge port. If cleaning is required, the side plate can be removed to clean and maintain the inside of the mixing tank.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The proportioning device for this type of organic-inorganic compound fertilizer for tobacco uses four sets of storage boxes in conjunction with transmission rods, limiting grooves and sliding sealing plates to accurately and conveniently adjust the feeding amount of each material, flexibly adapting to the needs of multiple raw materials and multiple proportions for tobacco-specific fertilizers, and solving the problems of difficult proportioning accuracy and cumbersome operation of traditional devices;

[0022] 2. The mixing device for this type of organic-inorganic compound fertilizer for tobacco uses an inclined mixing tank combined with three sets of stirring blades, three sets of first axial baffles and second axial baffles on the side plate. This allows for multi-directional stirring of the material, significantly improving the mixing uniformity of organic particles and inorganic fertilizers, and overcoming the shortcomings of poor mixing effect of traditional devices.

[0023] 3. The proportioning device for this type of organic-inorganic compound fertilizer for tobacco effectively enhances the overall sealing performance of the device through the first sealing ring on the side plate, the second sealing ring at the discharge port, and the openable cover of the storage box. This not only prevents the material from getting damp but also prevents dust from escaping during mixing, thus improving the problem of traditional devices being affected by sealing defects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance and structure of the construction protection component of the present invention;

[0025] Figure 2 This is a schematic diagram of the interlocking structure of the connecting shell and the storage box of the present invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure in which the connecting shell, storage box, and limiting groove of the present invention cooperate with each other;

[0028] Figure 5 This is a schematic diagram of the interaction structure of the mixing tank, the first axial baffle, and the second axial baffle of the present invention.

[0029] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0030] Figure 7 This is a schematic diagram of the interaction structure of the drive shaft, stirring blade and first axial baffle of the present invention.

[0031] Figure 8 This is a schematic diagram of the interoperable structure of the mixing tank, side plate, and storage bin of this invention;

[0032] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C.

[0033] In the diagram: 1. Support; 2. Mixing tank; 3. Drive shaft; 4. Stirring blade; 5. Drive motor; 6. First axial baffle; 7. Side plate; 8. First sealing ring; 9. Second axial baffle; 10. Discharge port; 11. Cover; 12. Second sealing ring; 13. Connecting shell; 14. Storage box; 15. Cover plate; 16. First sliding groove; 17. Second sliding groove; 18. Limiting groove; 19. Guide rail; 20. Slider; 21. Sealing plate; 22. Connecting block; 23. Drive rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This embodiment discloses a proportioning device for an organic-inorganic compound fertilizer for tobacco, as shown in the attached diagram. Figure 1-9 As shown, the system includes a support 1, a mixing tank 2 fixedly connected to one end of the support 1, a drive shaft 3 bearing-connected to one end of the mixing tank 2, a stirring blade 4 fixedly connected to one side of the drive shaft 3, a drive motor 5 fixedly connected to one end of the drive shaft 3, a first axial baffle 6 fixedly connected to one side of the inner wall surface of the mixing tank 2, a side plate 7 fixedly connected to one side of the surface of the mixing tank 2, a second axial baffle 9 fixedly connected to the other side of the surface of the side plate 7, a discharge port 10 fixedly connected to the other end of the mixing tank 2, a cap 11 threadedly connected to one side of the surface of the discharge port 10, a connecting shell 13 fixedly connected to the other side of the surface of the mixing tank 2, a storage box 14 fixedly connected to one end of the connecting shell 13, a first sliding groove 16 formed on one side of the inner wall surface of the connecting shell 13, a second sliding groove 17 formed on one end of the surface of the connecting shell 13, and a limit groove 18 formed on the other end of the surface of the connecting shell 13. A guide rail 19 is fixedly connected to one end of the inner wall surface. A slider 20 is slidably connected to one side of the guide rail 19 surface. A sealing plate 21 is fixedly connected to one end of the slider 20. A connecting block 22 is fixedly connected to one end of the sealing plate 21 surface. A transmission rod 23 is connected to one side of the connecting block 22 by a bearing. During use, the transmission rod 23 corresponding to each group of storage boxes 14 is first adjusted. The transmission rod 23 drives the sealing plate 21 to slide along the guide rail 19, adjusting the opening of the sealing plate 21 in the connecting shell 13, thereby controlling the amount of material discharged from each storage box 14. Then, the drive motor 5 is started, which drives the transmission shaft 3 to rotate. The stirring blade 4 on the transmission shaft 3 rotates accordingly. At the same time, the first axial baffle 6 on the inner wall of the mixing tank 2 cooperates with the second axial baffle 9 on the side plate 7 to stir and mix the material entering the mixing tank 2. After mixing, the sealing cover 11 is unscrewed, and the mixed compound fertilizer is discharged from the discharge port 10.

[0036] Furthermore, a first sealing ring 8 is fitted and connected to one side of the surface of the side plate 7, a second sealing ring 12 is fitted and connected to one end of the surface of the discharge port 10, and a cover plate 15 is hinged to one end of the storage box 14. During use, the cover plate 15 of the storage box 14 can be opened to add raw materials such as straw pellets and urea. After adding, the cover plate 15 is closed to prevent the raw materials from getting damp or foreign matter from entering. When the side plate 7 is connected to the mixing tank 2, the first sealing ring 8 can enhance the sealing between the two to prevent materials from leaking out from the gaps during the mixing process. When the cover 11 is screwed on the discharge port 10, the second sealing ring 12 can improve the sealing of the discharge port 10 to prevent materials from leaking out from the discharge port 10 during the mixing process.

[0037] Furthermore, the mixing tank 2 is set at an angle, and there are four sets of storage boxes 14. The angled setting of the mixing tank 2 facilitates the movement of materials towards the discharge port 10 under their own gravity, improving the smoothness of the discharge after mixing. The four sets of storage boxes 14 can store four raw materials: straw pellets, urea, diammonium phosphate, and potassium sulfate, respectively, to meet the ratio requirements of organic and inorganic components in the organic-inorganic compound fertilizer for tobacco.

[0038] Furthermore, three sets of stirring blades 4 and three sets of first axial baffles 6 are provided. With the three sets of stirring blades 4, the material can be stirred from different angles, improving the uniformity of material mixing. With the three sets of first axial baffles 6, the material can be stirred in multiple directions in conjunction with the stirring blades 4, further enhancing the mixing effect and ensuring the stable distribution of organic and inorganic components.

[0039] Furthermore, one side of the mixing tank 2 is provided with a concave structure that matches the size of the side plate 7, and one end of the discharge port 10 is provided with a concave structure that matches the size of the cover 11. The arrangement of the mixing tank 2 and the side plate 7 facilitates the precise assembly of the side plate 7 and the mixing tank 2. At the same time, the concave structure, together with the first sealing ring 8, can better ensure the connection sealing. The arrangement of the discharge port 10 and the cover 11 makes the connection between the cover 11 and the discharge port 10 tighter. Combined with the second sealing ring 12, leakage is further prevented. Moreover, the threaded connection makes it easy to disassemble and assemble the cover 11, which is convenient for material discharge and equipment cleaning.

[0040] Furthermore, the sealing plate 21 is slidably connected to the first sliding groove 16, and the connecting block 22 is slidably connected to the second sliding groove 17. Through the setting of the sealing plate 21 and the first sliding groove 16, the first sliding groove 16 plays a guiding role in the sliding of the sealing plate 21, ensuring that the sealing plate 21 moves smoothly along the predetermined trajectory and accurately adjusts the opening of the feed port. Through the setting of the connecting block 22 and the second sliding groove 17, the second sliding groove 17 provides sliding space and guidance for the connecting block 22, making the transmission rod 23 more stable when driving the sealing plate 21 to move, and improving the accuracy of the feed amount adjustment.

[0041] Furthermore, the transmission rod 23 is fitted with the limiting groove 18, which has four sets. Through the setting of the transmission rod 23 and the limiting groove 18, the limiting groove 18 can limit and fix the transmission rod 23, so that the sealing plate 21 is kept in the adjusted opening position, avoiding the displacement of the sealing plate 21 due to material pushing force and other factors, and ensuring stable material feeding. The setting of four sets of limiting grooves 18 can provide multiple opening adjustment levels to meet the precise control requirements of different nutrient ratios.

[0042] Furthermore, the mixing tank 2 is tightly fitted with the first sealing ring 8. The combination of the mixing tank 2 and the first sealing ring 8 effectively enhances the sealing between the mixing tank 2 and the side plate 7, preventing material leakage from the connection gap between the two during the mixing process, ensuring the sealing of the mixing environment, and reducing the escape of dust, thereby improving the environmental friendliness and cleanliness of the product.

[0043] Furthermore, the cap 11 and the second sealing ring 12 fit tightly together. The setting of the cap 11 and the second sealing ring 12 can significantly improve the sealing performance of the outlet 10, prevent the material from leaking from the outlet 10 during the mixing process, ensure the smooth progress of the mixing operation, and also facilitate the quick unscrewing of the cap 11 after the mixing is completed.

[0044] A method for formulating an organic-inorganic compound fertilizer for tobacco, the specific steps of which are as follows:

[0045] S1 device pre-inspection: Check the sealing of mixing tank 2, confirm the sealing state of side plate 7 and mixing tank 2 through the first sealing ring 8, and the thread connection of cover 11 at outlet 10 to ensure there is no risk of leakage.

[0046] S2 Raw material loading: Open the cover plate 15 connected by the hinge on the four sets of storage boxes 14, and load straw pellets, urea, diammonium phosphate and potassium sulfate into the storage boxes 14 respectively; after loading, close the cover plate 15 to prevent the raw materials from getting damp or foreign matter from getting in.

[0047] S3 Proportion Adjustment: For each group of storage bins 14, manually operate the corresponding transmission rod 23, insert the transmission rod 23 into the limiting groove 18 at different positions, drive the sealing plate 21 to slide along the guide rail 19 and the first sliding groove 16, adjust the opening of the sealing plate 21 in the connecting shell 13, control the amount of raw materials fed per unit time in each storage bin 14, and meet the preset proportion requirements of tobacco compound fertilizer.

[0048] S4 Mixing Operation: Start the drive motor 5, drive the transmission shaft 3 to rotate, and the three sets of stirring blades 4 on the surface of the transmission shaft 3 rotate accordingly; the three sets of first axial baffles 6 on the inner wall of the mixing tank 2 cooperate with the second axial baffles 9 on the side plate 7 to stir the raw materials entering the mixing tank 2 through the connecting shell 13, so that the straw particles and inorganic nutrients are evenly mixed.

[0049] S5 Discharge Collection: After mixing, rotate the cover 11 at the discharge port 10. Under the sealing action of the second sealing ring 12, unscrew the cover 11 and the mixed organic-inorganic compound fertilizer for tobacco is discharged from the discharge port 10. If cleaning is required, the side plate 7 can be removed to clean and maintain the inside of the mixing tank 2.

[0050] Working Principle: During use, by opening the hinged cover plates 15 of the four sets of storage bins 14, straw pellets, urea, diammonium phosphate, and potassium sulfate are respectively loaded into the four sets of storage bins 14. After loading, the cover plates 15 are closed to prevent the materials from getting damp or foreign matter from entering. For each set of storage bins 14, the corresponding transmission rod 23 is manually operated to move the transmission rod 23 from its current position in the limiting groove 18 to the target position. The four sets of limiting grooves 18 correspond to different opening degrees of the sealing plates 21. During this process, the sealing plates 21 slide along the guide rail 19 inside the connecting shell 13 and move in the first sliding groove 16. The connecting block 22 slides synchronously in the second sliding groove 17, thereby adjusting the opening degree of the material outlet of the storage bins 14 to achieve precise control of the material discharge per unit time and meet the ratio requirements of compound fertilizer for tobacco. The drive motor 5 is started, which drives the transmission shaft 3 to rotate, and the three sets of stirring blades 4 on the surface of the transmission shaft 3 rotate accordingly. Meanwhile, the mixing tank 2 is tilted, and the three sets of first axial baffles 6 fixedly connected to its inner wall cooperate with the second axial baffles 9 on the surface of the side plate 7. After the material enters the mixing tank 2 from the storage box 14 through the connecting shell 13, under the stirring action of the stirring blades 4 and the guiding action of the first axial baffles 6 and the second axial baffles 9, the straw particles and nitrogen, phosphorus, and potassium inorganic raw materials are fully mixed to ensure stable nutrient distribution. After mixing, the screw-connected cover 11 on the surface of the discharge port 10 is rotated. The second sealing ring 12 between the cover 11 and the discharge port 10 ensures the sealing effect. After opening the cover 11, the mixed organic-inorganic compound fertilizer for tobacco is discharged from the discharge port 10, completing the entire process of proportioning and mixing. If it is necessary to clean or maintain the inside of the mixing tank 2, the bolts connecting the side plate 7 and the mixing tank 2 can be unscrewed. The first sealing ring 8 between the side plate 7 and the mixing tank 2 ensures the sealing performance. After removing the side plate 7, it is easy to operate.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A proportioning device for an organic-inorganic compound fertilizer for tobacco, comprising a support frame (1), characterized in that, One end of the bracket (1) is fixedly connected to a mixing tank (2), and one end of the mixing tank (2) is bearing connected to a drive shaft (3). A stirring blade (4) is fixedly connected to one side of the surface of the drive shaft (3), and a drive motor (5) is fixedly connected to one end of the drive shaft (3). A first axial baffle (6) is fixedly connected to one side of the inner wall surface of the mixing tank (2), and a side plate (7) is fixedly connected to one side of the surface of the mixing tank (2). A second axial baffle (9) is fixedly connected to the other side of the surface of the side plate (7). A discharge port (10) is fixedly connected to the other end of the mixing tank (2). A cap (11) is threadedly connected to one side of the surface of the discharge port (10), and a fixed connection is made to the other side of the surface of the mixing tank (2). A connecting shell (13) is connected to a storage box (14) at one end of the connecting shell (13). A first sliding groove (16) is provided on one side of the inner wall surface of the connecting shell (13). A second sliding groove (17) is provided on one end of the surface of the connecting shell (13). A limit groove (18) is provided on the other end of the surface of the connecting shell (13). A guide rail (19) is fixedly connected to one end of the inner wall surface of the connecting shell (13). A slider (20) is slidably connected to one side of the surface of the guide rail (19). A sealing plate (21) is fixedly connected to one end of the slider (20). A connecting block (22) is fixedly connected to one end of the surface of the sealing plate (21). A transmission rod (23) is bearing connected to one side of the connecting block (22).

2. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: A first sealing ring (8) is fitted and connected to one side of the surface of the side plate (7), a second sealing ring (12) is fitted and connected to one end of the surface of the discharge port (10), and a cover plate (15) is hinged to one end of the storage box (14).

3. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: The mixing tank (2) is set at an angle, and the storage tank (14) is set in four sets.

4. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: The stirring blades (4) are provided in three sets, and the first axial baffle (6) is provided in three sets.

5. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: The mixing tank (2) has a concave structure on one side that matches the size of the side plate (7), and the discharge port (10) has a concave structure at one end that matches the size of the cover (11).

6. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: The sealing plate (21) is slidably connected to the first sliding groove (16), and the connecting block (22) is slidably connected to the second sliding groove (17).

7. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 1, characterized in that: The transmission rod (23) fits into the limiting groove (18), and the limiting groove (18) is provided in four sets.

8. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 2, characterized in that: The mixing tank (2) is tightly fitted with the first sealing ring (8).

9. The proportioning device for an organic-inorganic compound fertilizer for tobacco as described in claim 2, characterized in that: The cap (11) fits tightly against the second sealing ring (12).

10. A method for formulating an organic-inorganic compound fertilizer for tobacco, comprising a formulating device for an organic-inorganic compound fertilizer for tobacco as described in any one of claims 1-9, characterized in that, The specific steps are as follows: S1 device pre-inspection: Check the sealing of the mixing tank (2), confirm the sealing state of the side plate (7) and the mixing tank (2) through the first sealing ring (8), and the thread connection of the cover (11) at the outlet (10) to ensure there is no risk of leakage; S2 Raw material loading: Open the cover plate (15) connected by the hinge on the four sets of storage boxes (14), and load straw pellets, urea, diammonium phosphate and potassium sulfate into the storage boxes (14) respectively; after loading, close the cover plate (15) to prevent the raw materials from getting damp or foreign matter from getting in. S3 Proportion Adjustment: For each group of storage bins (14), manually operate the corresponding transmission rod (23), insert the transmission rod (23) into the limiting groove (18) at different positions, drive the sealing plate (21) to slide along the guide rail (19) and the first sliding groove (16), adjust the opening of the sealing plate (21) in the connecting shell (13), control the amount of raw materials in each storage bin (14) per unit time, and meet the preset proportion requirements of compound fertilizer for tobacco. S4 Mixing Operation: Start the drive motor (5), the drive motor (5) drives the transmission shaft (3) to rotate, and the three sets of stirring blades (4) on the surface of the transmission shaft (3) rotate accordingly; the three sets of first axial baffles (6) on the inner wall of the mixing tank (2) cooperate with the second axial baffles (9) on the side plate (7) to stir the raw materials entering the mixing tank (2) through the connecting shell (13), so that the straw particles and inorganic nutrients are evenly mixed; S5 Discharge Collection: After mixing, rotate the cover (11) at the discharge port (10). Under the sealing action of the second sealing ring (12), unscrew the cover (11) and the mixed organic-inorganic compound fertilizer for tobacco is discharged from the discharge port (10). If cleaning is required, the side plate (7) can be removed to clean and maintain the inside of the mixing tank (2).

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