Special fertilizer production equipment for saline-alkali soil

Abstract

The utility model relates to the technical field of production equipment, in particular to special fertilizer production equipment for saline-alkali soil, which comprises a pushing device, a stirring device and a power device, the pushing device is provided with a pushing roller, one end of the pushing roller is provided with a raw material inlet, the other end of the pushing roller is provided with a pushing outlet, and the stirring device is provided with a stirring roller. A discharge hole is formed in one end of the stirring drum, and a stirring inlet is formed in the other end of the stirring drum and communicated with the pushing outlet; a stirring rotating shaft and stirring blades are further arranged in the stirring roller, the multiple stirring blades are fixedly connected to the stirring rotating shaft, and one end of the stirring rotating shaft is in transmission connection with the power device; the stirring roller is provided with a spraying device, and the spraying device is used for spraying an acidity regulator into the stirring roller, so that the formed special fertilizer is discharged from the discharge hole. In conclusion, through optimization of the whole process of conveying, mixing and adjusting, efficient, low-consumption and multifunctional production equipment for the special fertilizer for the saline-alkali soil is constructed, and key equipment support is provided for ecological restoration and agricultural yield increase of the saline-alkali soil.

Description

Technical Field

[0001] This utility model relates to the technical field of production equipment, and in particular to a fertilizer production equipment for saline-alkali land. Background Technology

[0002] Saline-alkali land is characterized by low temperatures, poor soil quality, and poor soil structure due to the accumulation of salt in the soil. In particular, alkaline soil has a high pH value, low organic matter content, and a high concentration of harmful anions and cations, which seriously affects crop growth. Fertilization of saline-alkali land mainly uses organic fertilizers and high-efficiency compound fertilizers. Although organic fertilizers can buffer harmful ions and promote crop root and seedling growth through a large amount of organic matter, traditional organic fertilizers have limited ability to regulate soil pH and are difficult to effectively reduce soil alkalinity and replace harmful sodium ions, resulting in insufficient improvement effect of saline-alkali land.

[0003] The existing fertilizer production equipment has the following problems in meeting the production needs of fertilizers specifically for saline-alkali land:

[0004] Insufficient stability of raw material conveying: Organic fertilizer raw materials (such as humus) have high viscosity, and traditional feeding devices are prone to slippage and blockage of raw materials, which affects continuous production.

[0005] Limited pH adjustment capability: Traditional mixing equipment cannot efficiently mix acidity regulators (such as ferrous sulfate solution) during fertilizer production, resulting in a weak pH adjustment effect of the finished fertilizer on saline-alkali land.

[0006] Low power transmission efficiency: Traditional equipment often uses multiple motors to drive the pushing and stirring devices separately, which is complex in structure, expensive, and difficult to adapt to the high torque and low speed transmission requirements of viscous materials. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] This utility model provides a fertilizer production equipment for saline-alkali land, including a pushing device, a stirring device, and a power device. The power device is connected to the pushing device and the stirring device respectively and provides operating power. The pushing device is equipped with a pushing roller, one end of which has a raw material inlet and the other end has a pushing outlet. The stirring device is equipped with a stirring roller, one end of which has a discharge port and the other end has a stirring inlet that communicates with the pushing outlet, so that the raw material in the pushing roller flows directly into the stirring inlet of the stirring roller through the pushing outlet, achieving continuous conveying. The stirring roller is also equipped with a stirring shaft and stirring blades. Multiple stirring blades are fixed to the stirring shaft, one end of which is connected to the power device, so that the power device drives the stirring shaft to rotate, thereby driving the blades to stir the raw material in the stirring roller. A spraying device is provided on the end wall of the stirring roller near the stirring inlet. The spraying device is used to spray an acidity regulator into the stirring roller, so that the acidity regulator and the raw material are stirred and mixed in the stirring roller to form a special fertilizer that is discharged from the discharge port.

[0009] Furthermore: the spraying device includes atomizing nozzles and spray pipes, with the spray pipes connected to an external storage tank to uniformly spray liquid into the mixing drum.

[0010] Furthermore, the pushing device is also equipped with a pushing shaft and pushing blades. The pushing shaft is rotatably connected to the pushing roller and installed on the axis of the pushing roller, and one end of the pushing shaft is connected to the power device. The pushing blades are spirally fixed to the pushing shaft.

[0011] Furthermore, the pitch of the pusher blades gradually increases from the raw material inlet to the pusher outlet.

[0012] Furthermore: the stirring shaft of the stirring device is rotatably connected to the stirring drum and installed on the central axis of the stirring drum, and multiple stirring blades are distributed in a spiral shape around the stirring shaft.

[0013] Furthermore: the power unit is equipped with a power motor, a power output wheel and a first belt, with the power output wheel fixedly connected to the output shaft of the power motor; the pushing device is also equipped with a pushing driven wheel, which is drivenly connected to the pushing shaft; the first belt is respectively sleeved on the power output wheel and the pushing driven wheel, thereby forming a transmission connection between the power output wheel and the pushing driven wheel.

[0014] Furthermore: the diameter of the driven wheel for pushing the material is larger than the diameter of the power output wheel.

[0015] Furthermore, the power unit is also equipped with a second belt, and the stirring device is also equipped with a stirring driven wheel. The stirring driven wheel is driven and connected to the stirring shaft. The second belt is respectively sleeved on the stirring driven wheel and the power output wheel, so that the power output wheel and the stirring driven wheel form a transmission connection.

[0016] Furthermore: the diameter of the driven agitator wheel is larger than the diameter of the power output wheel.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Highly efficient pH adjustment capability: A spraying device is installed in the mixing drum, which can precisely spray acidity regulators (such as ferrous sulfate solution) while mixing raw materials (organic fertilizer). The ferrous ions (Fe²⁺) in ferrous sulfate react with alkaline components such as sodium carbonate and sodium bicarbonate in saline-alkali soil to produce sodium sulfate, ferric hydroxide, and carbon dioxide, effectively lowering the soil pH and making the soil acidity and alkalinity more suitable for crop growth.

[0019] 2. Improves soil structure and fertility: While lowering the pH value, it can also replace sodium ions that are harmful to plants, reducing soil salt accumulation. The generated ferric hydroxide precipitate can improve soil aggregate structure, increase soil porosity, and enhance aeration and water retention.

[0020] 3. Promote healthy crop growth: The improved soil environment is more conducive to crop root development and improves nutrient absorption efficiency, thereby promoting healthy crop growth and increasing yield.

[0021] 4. Continuous and stable production: The coordinated operation of the pushing device and the mixing device enables continuous conveying and mixing of raw materials. In particular, the pushing device uses gradually pitched pushing blades, which ensures smooth conveying of viscous materials (such as humus) and effectively avoids clogging problems.

[0022] 5. Integrated power transmission: The power unit drives both the pusher shaft and the mixing shaft simultaneously via belt drive. The structure is compact and the transmission efficiency is high, ensuring stable operation and production efficiency of the equipment.

[0023] Through the above improvements, this utility model optimizes the entire process of "transportation-mixing-adjustment" to construct a high-efficiency, low-consumption, and multifunctional fertilizer production equipment for saline-alkali land, providing key equipment support for ecological restoration and agricultural production increase in saline-alkali land.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the material pushing device and the stirring device of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the mixing drum and spraying device of this utility model;

[0028] Figure 3 This is a schematic diagram of the pusher shaft and pusher blades of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the stirring shaft and stirring blades of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the atomizing nozzle and nozzle pipe of this utility model;

[0031] Figure 6 This is a schematic diagram of the power device of this utility model.

[0032] The reference numerals and names in the figure are as follows:

[0033] 10 Pushing device; 11 Pushing drum; 12 Raw material inlet; 13 Pushing outlet; 14 Pushing shaft; 15 Pushing blade; 16 Pushing driven wheel; 20 Mixing device; 21 Mixing drum; 22 Mixing inlet; 23 Discharge outlet; 24 Mixing shaft; 25 Mixing blade; 26 Mixing driven wheel; 30 Spraying device; 31 Atomizing nozzle; 32 Spray pipe; 40 Power unit; 41 Power motor; 42 Power output wheel; 43 First belt; 44 Second belt. Detailed Implementation

[0034] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Please see Figures 1 to 6In this embodiment of the present invention, a fertilizer production equipment for saline-alkali land includes a pushing device 10, a stirring device 20, and a power device 40. The power device 40 is connected to the pushing device 10 and the stirring device 20 respectively and provides operating power. The pushing device 10 is provided with a pushing roller 11, one end of which is provided with a raw material inlet 12 and the other end with a pushing outlet 13. The stirring device 20 is provided with a stirring roller 21, one end of which is provided with a discharge port 23 and the other end with a stirring inlet 22 that communicates with the pushing outlet 13, so that the raw material in the pushing roller 11 flows directly into the stirring roller 21 through the pushing outlet 13. The mixing inlet 22 enables continuous conveying; the mixing drum 21 is also equipped with a mixing shaft 24 and mixing blades 25. Multiple mixing blades 25 are fixed to the mixing shaft 24. One end of the mixing shaft 24 is connected to a power device 40, which drives the mixing shaft 24 to rotate, thereby driving the blades to mix the raw materials in the mixing drum 21; a spraying device 30 is provided on the end wall of the mixing drum 21 near the mixing inlet 22. The spraying device 30 is used to spray an acidity regulator into the mixing drum 21, so that the acidity regulator and the raw materials are mixed in the mixing drum 21 to form a special fertilizer that is discharged from the outlet 23.

[0036] Specifically, saline-alkali land is a type of salt accumulation, referring to soil where the salt content negatively impacts crop growth. Saline-alkali land is generally characterized by low temperatures, poor soil quality, and poor soil structure, especially alkaline soils containing carbonates or biphosphates. These soils have a high pH value, are alkaline, have low organic matter content, low fertility, poor physical and chemical properties, and contain many harmful anions and cations, making it difficult for crops to sprout. The fertilization principle for saline-alkali soil is to primarily apply organic fertilizers and high-efficiency compound fertilizers, while controlling the use of low-concentration chemical fertilizers. Organic fertilizers contain a large amount of organic matter, which buffers harmful anions and cations in the soil, promoting root development and seedling growth. However, traditional organic fertilizers have limited pH-regulating capabilities. Therefore, it is necessary to design specialized fertilizer production equipment for saline-alkali land to mix and spray acidity regulators, thereby improving the pH-regulating ability of organic fertilizers and enhancing their effectiveness in improving saline-alkali land.

[0037] This invention provides a spraying device 30 at one end of the mixing drum 21 near the mixing inlet 22. During the mixing process of the mixing device 20, an acidity regulator (such as ferrous sulfate solution) is sprayed into the mixing drum 21, thereby producing a special fertilizer for saline-alkali land with stronger pH adjustment capabilities. When the special fertilizer is applied to the saline-alkali land, the ferrous ions (Fe²⁺) in it react with alkaline components such as sodium carbonate and sodium bicarbonate in the soil to generate sodium sulfate, ferric hydroxide, and carbon dioxide.

[0038] This process not only lowers the soil pH but also replaces harmful sodium ions, reducing salt accumulation and creating a healthier growing environment for crop roots. The sprayed ferrous sulfate solution, mixed with the raw materials, forms a specialized fertilizer. When applied to the soil, Fe²⁺ reacts with alkaline components (such as Na₂CO₃ and NaHCO₃) to generate Fe(OH)₃, Na₂SO₄, and CO₂, thereby lowering the pH and replacing sodium ions.

[0039] like Figure 2 and Figure 5 As shown, preferably, the spraying device 30 includes an atomizing nozzle 31 and a spray pipe 32. The spray pipe 32 is connected to an external storage tank, and the liquid is introduced and sprayed evenly into the mixing drum 21 through the atomizing nozzle 31.

[0040] Specifically, several atomizing nozzles 31 can be installed on the cylinder wall of the mixing drum 21 near the mixing inlet 22, and kept in communication with the spray pipe 32. The spray pipe 32 delivers the acidity regulator stored in the external storage tank to the atomizing nozzles 31, so that it is evenly sprayed onto the raw materials in the mixing drum 21. After being stirred by the mixing device 20, the organic fertilizer is transformed into a special fertilizer with acidity regulator, which can be used for the corresponding saline-alkali land.

[0041] Secondly, in order to drive the liquid to be transported to the nozzle 32 and the nozzle, a liquid pump (not shown in the figure) in the prior art can be installed between the nozzle 32 and the external storage tank, so that the liquid is driven to form a certain high pressure and then transported to the nozzle 32 and the nozzle, so that the liquid at the nozzle can form a spray and be evenly sprayed onto the raw material.

[0042] like Figure 1 and Figure 3 As shown, preferably, the pushing device 10 is further provided with a pushing shaft 14 and a pushing blade 15. The pushing shaft 14 is rotatably connected to the pushing roller 11 and installed on the axis of the pushing roller 11, and one end of the pushing shaft 14 is connected to the power device 40. The pushing blade 15 is spirally fixed to the pushing shaft 14.

[0043] Specifically, since there are many types of raw materials for organic fertilizer, and some of them have a certain viscosity, such as humus, it is preferable to set a pushing shaft 14 and a pushing blade 15 in the pushing device 10 to power the conveying of the raw materials and make them smoothly enter the pushing outlet 13 in order to transport them normally.

[0044] Secondly, the pusher shaft 14 can be driven to the power device 40. The power device 40 drives the pusher shaft 14 to rotate, which in turn drives the spirally distributed pusher blades 15 to rotate, thereby pushing the raw material from the raw material inlet 12 to the pusher outlet 13, thus achieving smooth raw material transportation.

[0045] like Figure 3 As shown, preferably, the pitch of the pusher blade 15 gradually increases from the raw material inlet 12 to the pusher outlet 13.

[0046] Specifically, to ensure the stability of the material conveying by the pusher device 10 and prevent blockage, the pitch of the spirally distributed pusher blades 15 is preferably set to a gradually increasing pitch. That is, from one end of the material inlet 12 to the other, the pitch of the pusher blades 15 gradually increases. The smaller pitch at the material inlet 12 increases the blades' gripping and pushing ability on the material, preventing the material from slipping due to initial inertia or accumulation. Meanwhile, the increased pitch at the outlet 23 reduces the resistance of the blades on the material, avoiding excessive compression or blockage, which is especially suitable for easily agglomerated or sticky materials (such as humus). Therefore, the gradually increasing pitch design can achieve more efficient and stable conveying by dynamically adapting to the material state. The pitch of the pusher blades 15 gradually increases from the material inlet 12 to the pusher outlet 13. The smaller pitch enhances the initial gripping force, while the larger pitch reduces the resistance at the rear end, preventing blockage by sticky materials.

[0047] like Figure 2 and Figure 4 As shown, preferably, the stirring shaft 24 of the stirring device 20 is rotatably connected to the stirring drum 21 and installed on the central axis of the stirring drum 21, and multiple stirring blades 25 are spirally distributed around the stirring shaft 24.

[0048] Specifically, in order to mix and convey the raw materials in the mixing drum 21, it is preferable to set multiple mixing blades 25 on the mixing shaft 24 and arrange the mixing blades 25 in a spiral shape so that while mixing, the mixed raw materials can also be conveyed to the discharge port 23, so that after the entire mixing stroke of the mixing drum 21, the uniformly mixed raw materials can be discharged from the discharge port 23.

[0049] Secondly, the original organic fertilizer is mixed evenly with the acidity regulator during the mixing process at the front end of the mixing drum 21, and then mixed and discharged at the rear end of the mixing drum 21, thus obtaining a special fertilizer for saline-alkali land. This special fertilizer can be directly transported to saline-alkali land for application using fertilizer trucks, or it can be transported to an existing post-processing system for further processing. For example, granulation equipment can be used to produce granular fertilizer, or spray-coating slow-release equipment can be used to produce slow-release fertilizer.

[0050] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, preferably, the power unit 40 is provided with a power motor 41, a power output wheel 42 and a first belt 43, and the power output wheel 42 is fixedly connected to the output shaft of the power motor 41; the pushing device 10 is also provided with a pushing driven wheel 16, which is drivenly connected to the pushing shaft 14; the first belt 43 is respectively sleeved on the power output wheel 42 and the pushing driven wheel 16, so that the power output wheel 42 and the pushing driven wheel 16 form a transmission connection.

[0051] Specifically, in order to output power to the feeding device 10, preferably, a power motor 41 and a power output wheel 42 are provided in the power device 40, and are respectively rotatably connected to the power output wheel 42 and the feeding driven wheel 16 via a first belt 43. The power motor 41 runs, drives the power output wheel 42 to rotate synchronously, and drives the first belt 43 to rotate, thereby driving the feeding driven wheel 16 to rotate, driving the feeding shaft 14 and the feeding blade 15 to rotate synchronously, and then driving the raw material in the feeding drum 11 to move towards the mixing inlet 22, thus completing the raw material conveying operation.

[0052] Secondly, the power motor 41 can be a two-phase or three-phase motor as used in existing technology, which has high output power and can simultaneously drive the pushing device 10 and the stirring device 20 to operate. The first belt 43 is preferably a high-speed toothed narrow V-shaped belt with a V-shaped edge, which is a type of transmission belt with a specification of SPZX1550.

[0053] like Figure 1 and Figure 2 As shown, preferably, the diameter of the pusher wheel 16 is larger than the diameter of the power output wheel 42.

[0054] Specifically, to increase the torque of the pusher shaft 14, it is preferable to set the diameter of the driven pusher wheel 16 to be larger than the diameter of the power output wheel 42, so that the rotational speed of the power output wheel 42 is higher than that of the driven pusher wheel 16. Through the transmission of the first belt 43, the driven pusher wheel 16 can achieve a high torque and low speed power effect. The high-torque driven pusher wheel 16 can drive the pusher shaft 14 and the pusher blades 15, apply a greater force to the raw material, and push the raw material to be conveyed in the pusher roller 11, which is particularly suitable for conveying organic fertilizer with high viscosity.

[0055] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, preferably, the power unit 40 is further provided with a second belt 44, and the stirring device 20 is further provided with a stirring driven wheel 26. The stirring driven wheel 26 is driven to the stirring shaft 24. The second belt 44 is respectively sleeved on the stirring driven wheel 26 and the power output wheel 42, so that the power output wheel 42 and the stirring driven wheel 26 form a driving connection.

[0056] Specifically, in order to output power to the stirring device 20, preferably, a second belt 44 is rotatably connected to the power output wheel 42 and the stirring driven wheel 26 respectively, so that the power motor 41 runs, drives the power output wheel 42 to rotate, and drives the second belt 44 to rotate, thereby driving the stirring driven wheel 26 to rotate, driving the stirring shaft 24 and the stirring blades 25 to rotate synchronously, thereby driving the raw materials in the stirring drum 21 to perform tumbling and stirring operations. Under the push of the spiral distribution structure of the stirring blades 25, the raw materials are gradually and evenly mixed during the stirring process and gradually move towards the discharge port 23, and finally discharged from the discharge port 23.

[0057] Secondly, the second belt 44 can be a high-speed toothed narrow V-shaped belt with the same specifications as the first belt 43, to ensure transmission synchronization. Furthermore, both the first belt 43 and the second belt 44 receive power from the power output pulley 42 of the power motor 41, allowing a single power motor 41 to drive both the pushing device 10 and the stirring device 20, simplifying the equipment assembly process and saving production costs. The power unit 40 drives the pushing driven pulley 16 via the first belt 43 and the stirring driven pulley 26 via the second belt 44. Both belts are mounted on the same power output pulley 42, achieving synchronous drive by a single motor.

[0058] like Figure 1 and Figure 2 As shown, preferably, the diameter of the driven stirring wheel 26 is larger than the diameter of the power output wheel 42.

[0059] Specifically, to increase the torque of the stirring shaft 24, the diameter of the driven stirring wheel 26 is set to be larger than the diameter of the power output wheel 42. This allows the driven stirring wheel 26 to generate greater torque under the drive of the second belt 44, driving the stirring blades 25 to stir and convey the raw materials. The diameter ratio of the driven pushing wheel 16 to the power output wheel 42 is 1.5:1 to 2:1, and the diameter ratio of the driven stirring wheel 26 to the power output wheel 42 is 1.2:1 to 1.8:1. Increasing the diameter of the driven wheels improves the torque, adapting to the conveying requirements of viscous materials.

[0060] The power motor 41 drives the first belt 43 and the second belt 44 via the power output wheel 42, which in turn drive the pushing shaft 14 and the stirring shaft 24 to rotate. The raw material enters the pushing drum 11 from the feed inlet, is pushed to the pushing outlet 13 by the spirally distributed pushing blades 15, and then flows into the stirring inlet 22 of the stirring drum 21. At the same time, the spraying device 30 sprays an acidity regulator into the stirring drum 21. After being mixed and conveyed by the spirally distributed stirring blades 25, the finished fertilizer is discharged from the discharge outlet 23.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A fertilizer production equipment specifically for saline-alkali land, characterized in that, The device includes a pushing device (10), a stirring device (20), and a power device (40). The power device (40) is connected to the pushing device (10) and the stirring device (20) respectively and provides operating power. The pushing device (10) is provided with a pushing roller (11). One end of the pushing roller (11) is provided with a raw material inlet (12) and the other end is provided with a pushing outlet (13). The stirring device (20) is provided with a stirring roller (21). One end of the stirring roller (21) is provided with a discharge port (23) and the other end is provided with a stirring inlet (22) and connected to the pushing outlet (13), so that the raw material in the pushing roller (11) flows directly into the stirring inlet (22) of the stirring roller (21) through the pushing outlet (13). To achieve continuous conveying; the mixing drum (21) is also equipped with a mixing shaft (24) and mixing blades (25). Multiple mixing blades (25) are fixed to the mixing shaft (24). One end of the mixing shaft (24) is connected to the power device (40) so that the power device (40) drives the mixing shaft (24) to rotate, thereby driving the blades to mix the raw materials in the mixing drum (21); a spraying device (30) is provided on the end wall of the mixing drum (21) near the mixing inlet (22). The spraying device (30) is used to spray acidity regulator into the mixing drum (21) so that the acidity regulator and the raw materials are mixed in the mixing drum (21) to form special fertilizer that is discharged from the outlet (23).

2. The fertilizer production equipment for saline-alkali land according to claim 1, characterized in that, The spraying device (30) includes an atomizing nozzle (31) and a spray pipe (32). The spray pipe (32) is connected to an external storage tank and sprays liquid evenly into the mixing drum (21).

3. The fertilizer production equipment for saline-alkali land according to claim 1, characterized in that, The feeding device (10) is also provided with a feeding shaft (14) and a feeding blade (15). The feeding shaft (14) is rotatably connected to the feeding roller (11) and installed on the axis of the feeding roller (11). One end of the feeding shaft (14) is connected to the power device (40). The feeding blade (15) is spirally fixed to the feeding shaft (14).

4. The fertilizer production equipment for saline-alkali land according to claim 3, characterized in that, The pitch of the pusher blade (15) gradually increases from the raw material inlet (12) to the pusher outlet (13).

5. The fertilizer production equipment for saline-alkali land according to claim 1, characterized in that, The stirring shaft (24) of the stirring device (20) is rotatably connected to the stirring drum (21) and installed on the central axis of the stirring drum (21), and multiple stirring blades (25) are spirally distributed around the stirring shaft (24).

6. The fertilizer production equipment for saline-alkali land according to claim 1, characterized in that, The power unit (40) is equipped with a power motor (41), a power output wheel (42) and a first belt (43). The power output wheel (42) is fixed to the output shaft of the power motor (41). The pushing device (10) is also equipped with a pushing driven wheel (16), which is connected to the pushing shaft (14). The first belt (43) is respectively sleeved on the power output wheel (42) and the pushing driven wheel (16), so that the power output wheel (42) and the pushing driven wheel (16) form a transmission connection.

7. The fertilizer production equipment for saline-alkali land according to claim 6, characterized in that, The diameter of the pusher wheel (16) is larger than the diameter of the power output wheel (42).

8. The fertilizer production equipment for saline-alkali land according to claim 6, characterized in that, The power unit (40) is also provided with a second belt (44), and the stirring device (20) is also provided with a stirring driven wheel (26). The stirring driven wheel (26) is connected to the stirring shaft (24). The second belt (44) is respectively sleeved on the stirring driven wheel (26) and the power output wheel (42), so that the power output wheel (42) and the stirring driven wheel (26) form a transmission connection.

9. The fertilizer production equipment for saline-alkali land according to claim 8, characterized in that, The diameter of the driven agitator (26) is larger than the diameter of the power output agitator (42).

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