Process device for producing amino acid fertilizer based on waste milk

Abstract

This invention relates to the field of fertilizer production, specifically a process device for producing amino acid fertilizer from waste milk. The device includes a tank equipped with a temperature sensor; a drive unit mounted on the tank, comprising a main shaft and a secondary shaft. The main shaft has a first groove, allowing the secondary shaft to slide along the first groove within the main shaft's inner cavity. The movement direction of the secondary shaft is designated as a first direction. The temperature sensor can regulate the movement range of the secondary shaft based on the material temperature; and a main stirring component with a first chamber. In this invention, the temperature sensor is used to real-time link the drive unit, adjusting the axial displacement of the secondary shaft according to the material temperature. This automatically adjusts the stirring blade angle and the working mode of the secondary stirring component, matching the activity characteristics of the three temperature zones of the protease: low-temperature preheating, optimal enzymatic hydrolysis, and high-temperature warning. This avoids abnormal temperature rise in the material due to shear heat generation during low-temperature stirring and prevents accelerated enzyme inactivation due to continuous stirring during high-temperature stirring, thus stably maintaining the optimal temperature environment for the enzymatic hydrolysis reaction.

Description

Technical Field

[0001] This invention relates to the field of fertilizer production, specifically a process apparatus for producing amino acid fertilizer based on waste milk. Background Technology

[0002] The preparation of amino acid fertilizer by hydrolyzing waste milk protein with protease has mild reaction conditions and excellent fertilizer effect, showing good application prospects. However, the activity of protease is significantly temperature-dependent, and it only has efficient catalytic activity within a specific temperature range. When the temperature is too low, the enzyme activity is inhibited, and when the temperature is too high, it will lead to thermal denaturation and inactivation. Therefore, the entire enzymatic hydrolysis process has high requirements for reaction temperature and material mixing state.

[0003] Traditional stirring paddles have a fixed structure and constant rotation speed, making it difficult to adaptively adjust the stirring conditions according to real-time temperature. During the low-temperature preheating stage, the protease activity is extremely low, and constant high-speed stirring generates a large amount of shear friction heat, causing abnormal temperature rise of the material, increased energy consumption, and uneven local heating. In the optimal activity temperature zone, the fixed stirring paddle has a limited mixing range, which easily leads to material stratification and sedimentation at the bottom of the vessel, making it difficult to achieve uniform dispersion mixing throughout the vessel and limiting catalytic efficiency. In the high-temperature stage, constant stirring continuously generates heat, further accelerating enzyme inactivation and easily causing raw material loss. Summary of the Invention

[0004] The purpose of this invention is to provide a process apparatus for producing amino acid fertilizer from waste milk, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A process apparatus for producing amino acid fertilizer from waste milk, comprising: The tank is equipped with a temperature sensor. A drive unit is mounted on the tank body. The drive unit includes a main shaft and a secondary shaft. The main shaft has a first groove, which allows the secondary shaft to slide along the first groove within the inner cavity of the main shaft. The direction of movement of the secondary shaft is set as a first direction. The temperature sensor can adjust the range of movement of the secondary shaft by the material temperature. The main stirring component is equipped with a first chamber, on which at least three tilt-adjustable stirring blades are provided. When the secondary shaft moves along the first direction, it provides power to adjust the tilt angle of the stirring blades. The auxiliary stirring component is equipped with a second chamber, and a third chamber is rotatably installed inside the second chamber. When the auxiliary shaft controls the moving point along the first direction, the third chamber and the second chamber can be selectively engaged.

[0006] Furthermore, the main shaft is provided with four second grooves, and each second groove contains a movable first slider. One end of each first slider is fixed to the sub-shaft, and the other end is fixed to the inner ring of the bearing. This allows the sub-shaft to move along the first direction when the bearing moves along the first direction, with the first slider moving along the second groove.

[0007] Furthermore, the outer ring of the bearing is fixed with two second sliders, each of which slides on a connecting plate. Each connecting plate is fixed on a base. The bearing is hinged to the first rod via two movable arms. When the bearing is limited by the connecting plates, the first rod moves along the first direction by moving the secondary shaft via the movable arms.

[0008] Furthermore, the secondary shaft is machined into three sections in one piece, which are, in the first direction, a tapered section, a threaded section, and a rectangular section.

[0009] Furthermore, the inner cavity of the first chamber is provided with a first bevel gear, and the first bevel gear is meshed with three second bevel gears. Each second bevel gear is fixedly connected to the stirring blade. The first bevel gear is provided with an internal threaded hole and is threadedly connected to the threaded section in the drive component through the internal threaded hole.

[0010] Furthermore, four second plates with torsion springs are rotatably mounted on the second cabin, and the main shaft of the drive component is rotatably mounted on the second cabin. The main shaft has four third slots, and a second rod is movable in each third slot. One end of each second rod is fixed to a secondary shaft, and the other end of each second rod is fixed to a first plate.

[0011] Furthermore, when the secondary shaft moves to its maximum range of motion in the opposite direction of the first direction, the second rod drives the first plate to contact the second plate, causing the second plate to change its tilt angle.

[0012] Furthermore, the third compartment is slidably connected with four pins, each pin is equipped with a return spring, the other end of each return spring is connected to the inner cavity of the third compartment, and the return spring is preloaded and compressed. The inner cavity of the second compartment is provided with four slots that are adapted to the pins.

[0013] Furthermore, each of the aforementioned pins is fixedly equipped with a connecting handle, and each connecting handle is slidably connected to the conical section of the drive component, so that when the conical section moves along the first direction, the connecting handle controls the sliding position of the pin in the third compartment cavity, thereby selectively controlling the engagement of the pin with the slot.

[0014] Furthermore, the tank body includes a vessel body, a metering and feeding valve is fixedly installed in the vessel body, and a temperature sensor is fixedly installed in the inner cavity of the vessel body. The temperature sensor controls the opening and closing of the metering and feeding valve according to the material temperature signal.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By using a temperature sensor in conjunction with an existing external controller to drive the device in real time, the axial displacement of the secondary shaft is adjusted according to the material temperature. The tilt angle of the stirring blades and the working mode of the secondary stirring device are automatically adjusted to match the activity characteristics of the three temperature zones of protease: low temperature preheating, optimal enzymatic hydrolysis, and high temperature warning. This helps to prevent abnormal temperature rise of the material caused by stirring and shearing heat generation in the low temperature zone and continuous stirring in the high temperature zone from accelerating enzyme inactivation, thus facilitating the maintenance of the optimal temperature environment for the enzymatic hydrolysis reaction. 2. Through the coordinated design of adjustable tilt angle of main agitator and convective feeding of auxiliary agitator, the material is mixed by convective impact in the upper and lower parts of the optimal enzymatic hydrolysis temperature zone, which breaks the problems of material stratification and sedimentation at the bottom of the vessel, allowing waste milk and protease to fully contact and react, which helps to improve the efficiency of catalytic hydrolysis and realize the resource-based, harmless and efficient utilization of waste milk. 3. By using a temperature sensor in conjunction with an existing external controller to control the metering and feeding valve, the amount of enzyme preparation added can be adaptively controlled according to the reaction temperature to prevent waste of enzyme preparation in the high-temperature stage. While ensuring the reaction effect, the utilization rate of raw materials and the quality of amino acid fertilizer production can be maximized. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is an exploded view of the driving component structure in this invention; Figure 4 This is a schematic diagram of the secondary shaft structure in this invention; Figure 5 This is a schematic cross-sectional view of the main stirring component in this invention; Figure 6 This is a schematic diagram of the overall structure of the second cabin in this invention; Figure 7 This is a schematic cross-sectional view of the second cabin structure in this invention; Figure 8 This is a schematic cross-sectional view of the third hull structure in this invention. Figure 9 This is a schematic diagram of the conical section structure in this invention. Figure 10 This is a schematic cross-sectional view of the tank structure in this invention.

[0017] In the diagram: 100, tank body; 110, vessel body; 120, temperature sensor; 121, metering and feeding valve; 200, drive component; 210, main shaft; 211, connecting plate; 212, bearing; 213, first rod; 214, base; 220, secondary shaft; 221, rectangular section; 222, threaded section; 223, conical section; 300, main stirring component; 310, first chamber; 311, first bevel gear; 312, second bevel gear; 320, stirring blade; 400, secondary stirring component; 410, second chamber; 411, second rod; 412, first plate; 413, second plate; 420, third chamber; 421, slot; 422, pin; 423, return spring; 424, connecting handle. Detailed Implementation

[0018] 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.

[0019] Example 1, please refer to Figure 1 - Figure 10 In this embodiment of the invention, a process device for producing amino acid fertilizer based on waste milk includes a tank 100, a drive unit 200, a main stirrer 300 and a secondary stirrer 400; the drive unit 200 is installed on the tank 100, and the main stirrer 300 and the secondary stirrer 400 are both installed on the drive unit 200. In the preparation of amino acid fertilizers by the bio-enzymatic hydrolysis process of waste milk, the existing technology has high requirements for the reaction temperature and the mixing state of the materials throughout the entire enzymatic hydrolysis process. The existing technology is not convenient to adaptively adjust according to the real-time temperature inside the reactor and the corresponding enzyme activity state. In this device, the temperature sensor 120 inside the vessel 110 of the tank 100 serves as the core of intelligent control. It collects the material temperature in real time and links the metering and feeding valve 121 and the hydraulic cylinder to drive the secondary shaft 220 of the drive component 200 to slide axially along the inner cavity of the main shaft 210. This allows for both automatic adjustment of the tilt angle of the stirring blades 320 to adapt to different temperature stages by meshing with the first bevel gear 311 and the second bevel gear 312 inside the first chamber 310 of the main stirring component 300 through the threaded section 222 of the secondary shaft 220, and control of the extension and retraction of the pin 422 of the secondary stirring component 400 via the conical section 223 of the secondary shaft 220, thus enabling the connection between the third chamber 420 and the second... The engagement or disengagement of the chamber 410 simultaneously triggers the first plate 412 and the second plate 413 to switch between two working modes: vertical scraping of the bottom of the vessel and oblique upward feeding. The entire device can automatically match the working conditions of three temperature zones: low temperature preheating, optimal enzymatic hydrolysis, and high temperature warning. It can avoid abnormal temperature rise of materials caused by stirring and shearing in the low temperature zone and prevent thermal denaturation and inactivation of proteases in the high temperature zone, precisely matching the temperature activity characteristics of proteases. It can also form an upward and downward convection impact mixing effect in the optimal enzymatic hydrolysis temperature zone, allowing waste milk and proteases to fully contact and react, ultimately achieving efficient resource utilization and harmless use of waste milk, and stably producing high-efficiency amino acid fertilizer.

[0020] Specifically, such as Figure 3 As shown, the drive unit 200 is equipped with a main spindle 210, which has a first groove. A secondary spindle 220 is movably mounted in the first groove and can move along a first direction. Figure 3 In the direction indicated by the arrow, the bearing 212 limits the first slider with four second grooves. One end of each first slider is fixed to the outer surface of the secondary shaft 220, and the other end of each first slider is fixed to the inner ring of the bearing 212. The outer ring of the bearing 212 is hinged to two movable arms, and the other ends of the two movable arms are hinged to the first rod 213. The first rod 213 is set at the output end of the hydraulic cylinder. The outer ring of the bearing 212 is also fixed to two second sliders. Each second slider slides on the connecting plate 211. The two connecting plates 211 are fixed to the base 214. The top of the base 214 is fixed to a motor. The main shaft 210 is fixedly connected to the output end of the motor. The base 214 is fixedly connected to the top of the tank 100.

[0021] like Figure 3As shown, in this embodiment, the hydraulic cylinder serves as the driving unit for the first rod 213. During operation, it drives the first rod 213 to perform reciprocating motion. The first rod 213 is hinged to the outer ring of the bearing 212 via a movable arm. The outer ring of the bearing 212 is limited on the connecting plate 211 by two second sliders. Simultaneously, the inner ring of the connecting plate 211 is fixed to the secondary shaft 220 by four first sliders. When the bearing 212 is limited, the first rod 213 moves, causing the bearing 212 to move along the first direction. In both forward and reverse motion, the second groove of the main shaft 210 and the sliding groove of the connecting plate 211 can limit the range of motion of the bearing 212. During the above-mentioned motion, the motor always drives the main shaft 210 to rotate. The secondary shaft 220 is set in the cavity of the main shaft 210 and rotates synchronously with the main shaft 210. When the secondary shaft 220 rotates, it is connected to the first rod 213 through the bearing 212. The inner and outer rings of the bearing 212 cooperate with each other, so that the secondary shaft 220 can still be driven by the hydraulic cylinder to move in the first direction during rotation.

[0022] Specifically, such as Figure 4 As shown, the secondary shaft 220 is integrally formed and is divided into three sections, which are, in order from the first direction, a tapered section 223, a threaded section 222, and a rectangular section 221. The rectangular section 221 is rectangular in shape, the threaded section 222 has a threaded groove on its surface, and the tapered section 223 is a hollow tapered cylinder with a guide groove.

[0023] like Figure 4 As shown, in this embodiment, the first groove of the main shaft 210 is adapted to the three segments of the secondary shaft 220. The rectangular segment 221 is rectangular and transitionally fits the first groove of the secondary shaft 220, which makes the rotation of the secondary shaft 220 by the main shaft 210 stable. The middle section of the threaded segment 222 is threaded and has a clearance fit with the first groove, and the two ends are cylindrical and transitionally fit with the first groove. At the same time, the cylindrical groove in the first groove extends along the first direction to prevent the rectangular groove in the first groove from interfering with the movement of the threaded segment 222. One end of the conical segment 223 is cylindrical and connects with the cylinder of the threaded segment 222 and transitionally fits the first groove to prevent material from entering the gap between the main shaft 210 and the secondary shaft 220. The other end is hollow conical and has a clearance fit with the first groove.

[0024] Specifically, such as Figure 5As shown, the main stirring component 300 is provided with a first chamber 310. The top and bottom of the first chamber 310 are fixed by the main shaft 210, so that the main shaft 210 drives the first chamber 310 to move synchronously when rotating. A first bevel gear 311 is rotatably installed in the inner cavity of the first chamber 310. The first bevel gear 311 is provided with an internal threaded hole and is threadedly engaged with the threaded section 222 in the secondary shaft 220. The bottom of the first bevel gear 311 is meshed with three second bevel gears 312. Each second bevel gear 312 is rotatably installed on the first chamber 310 and is transitionally fitted with the first chamber 310 for sealing treatment to prevent material from entering the inner cavity of the first chamber 310. A stirring blade 320 is fixedly installed on each second bevel gear 312.

[0025] like Figure 5 As shown, in this embodiment, the first bevel gear 311 installed in the inner cavity of the first compartment 310 has an internal threaded hole that is threadedly connected to the threaded section 222 of the secondary shaft 220. When the secondary shaft 220 moves in the first direction, the secondary shaft 220 engages with the first bevel gear 311 through the threaded section 222, converting the rotational motion of the secondary shaft 220 into the rotational motion of the first bevel gear 311. When the first bevel gear 311 rotates, it relies on the meshing connection with the three second bevel gears 312 at the bottom to change the direction of rotation, driving the three second bevel gears 312 in the first compartment. The first chamber 310 rotates on the main shaft 210. Each second bevel gear 312 has a stirring blade 320 fixed on it. When the second bevel gear 312 rotates, it adjusts the tilt angle of the stirring blade 320. The working state of the stirring blade 320 can be changed by the forward or reverse movement of the secondary shaft 220 in the first direction. When the stirring blade 320 is in working state, since the first chamber 310 is fixed to the main shaft 210, the three stirring blades 320 make circular motion around the main shaft 210 as the axis under the state of the motor driving the main shaft 210, which stirs and guides the material in the vessel 110.

[0026] Specifically, such as Figure 6 As shown, the auxiliary stirring component 400 includes a second chamber 410. The main shaft 210 of the driving component 200 is rotatably mounted inside the second chamber 410. The main shaft 210 has four third grooves, and each third groove has a movable second rod 411. One end of each second rod 411 is connected to the cylindrical section of the threaded section 222 in the auxiliary shaft 220, and the other end of each second rod 411 is connected to the first plate 412. The second chamber 410 is rotatably connected to the second plate 413 by four torsion springs. One end of the second plate 413 is fixed with a connecting shaft, which is rotatably connected to the second chamber 410. A torsion spring is sleeved between the connecting shaft and the second chamber 410. The elastic force of the torsion spring drives the second plate 413 to be in a vertical initial state.

[0027] like Figure 6 As shown, in this embodiment, when the secondary shaft 220 moves along the first direction, it drives the second rod 411 to move in the third groove opened by the main shaft 210. The initial position of the second rod 411 is the center point of the third groove. At this time, when the secondary shaft 220 moves downward along the first direction, the second rod 411 moves to the bottom of the third groove. At this time, the other end of the second rod 411 drives the first plate 412 to press down. The first plate 412 is inclined. When the first plate 412 is pressed down to a certain extent, the first plate 412 will drive the second plate 413 to become inclined. When the secondary shaft 220 moves upward along the first direction, the first plate 412 stops contacting the second plate 413, and the second plate 413 rebounds to the initial state through the torsion spring. Figure 2 As shown, in the initial state, the second plate 413 and the vessel 110 are perpendicular to each other with a small gap between them. When the second plate 413 rotates, it can be used to drive the movement of the sediment in the vessel 110. In the inclined state, the gap between the second plate 413 and the vessel 110 widens, and when the second plate 413 rotates, it guides the material to move upward with the inclined surface.

[0028] Specifically, such as Figure 7 As shown, the auxiliary stirring component 400 also includes a third chamber 420, which is rotatably connected to the cavity of the second chamber 410. Its top and bottom are both fixed to the main shaft 210. The inner cavity of the second chamber 410 has four slots 421, such as... Figure 8 As shown, the third compartment 420 has four fourth slots, each slot having a slidably connected pin 422. One end of each pin 422 is fixed with a connecting handle 424, and each pin 422 is connected to the fourth slot of the third compartment 420 via a return spring 423. Figure 9 As shown, the conical section 223 of the secondary shaft 220 is a hollow conical cylinder with a guide groove, and the connecting handle 424 is limited to the guide groove.

[0029] like Figure 8 and Figure 9As shown, in this embodiment, when the conical section 223 moves axially along the first direction with the secondary shaft 220, the connecting handle 424 slides synchronously along the guide groove of the conical section 223. The conical inclined surface of the conical section 223 will generate a radial thrust on the connecting handle 424, causing the pin 422 to slide radially within the fourth groove of the third compartment 420, synchronously compressing or releasing the return spring 423. When the secondary shaft 220 moves to the top or bottom of the active stroke along the first direction, the pin 422 extends under the thrust of the return spring 423 and engages with the second compartment 41. When the slot 421 of the 0 engages, the third chamber 420 and the second chamber 410 are locked and rotate synchronously. At this time, the auxiliary stirring component 400 participates in the mixing. When the secondary shaft 220 returns to the initial position (i.e., the center point of the cone section 223 along the first direction is flush with the pin 422), the guide groove of the cone section 223 drives the connecting handle 424 to retract, which in turn drives the pin 422 to retract, releasing the engagement between the third chamber 420 and the second chamber 410. The third chamber 420 rotates independently with the main shaft 210, while the second chamber 410 slows down or stops.

[0030] like Figure 5 As shown, when the secondary shaft 220 moves forward in the first direction to the top of its stroke, it drives the first bevel gear 311 to rotate through the threaded section 222, which in turn drives the second bevel gear 312 to make the stirring blade 320 tilt at a positive angle. As the stirring blade 320 rotates with the main shaft 210, it continuously drives the material to flow upward, such as... Figure 6 As shown, at this time, the second rod 411 moves upward with the secondary shaft 220, the first plate 412 and the second plate 413 disengage, and the second plate 413 remains vertical under the action of the torsion spring, scraping the sediment at the bottom of the vessel to avoid excessive disturbance of the material. like Figure 5 As shown, when the secondary shaft 220 moves in the reverse direction to the top of its stroke, the threaded section 222 drives the first bevel gear 311 in the reverse direction, causing the stirring blade 320 to rotate to a reverse tilt angle. As the stirring blade 320 rotates, it guides the material in the upper middle part of the vessel to flow downwards, such as... Figure 6 As shown, the secondary shaft 220 moves downward, driving the second rod 411 downward. The first plate 412 presses down and drives the second plate 413 to turn into an inclined state. When the second plate 413 rotates with the second chamber 410, it continuously guides and conveys the material at the bottom of the vessel upward. During this process, the downward flow of the stirring blade 320 and the upward feeding of the second plate 413 form a convective impact effect. Under the action of bidirectional convection and mutual collision, the material in the vessel breaks down the stratification and sedimentation phenomenon, allowing the waste milk material and the protease preparation to fully contact and mix evenly, improving the rate and completeness of the enzymatic reaction, and adapting to the viscosity changes during the material hydrolysis process to ensure stable mixing effect.

[0031] like Figure 10As shown, the temperature sensor 120 inside the vessel 110 collects the material temperature in real time. The temperature sensor 120 is electrically connected to the motor, hydraulic cylinder, and metering valve 121 via a PLC controller, converting the temperature signal into mechanical driving force. The metering valve 121 is used to control the amount of enzyme preparation added. Controlling the opening and closing degree of the metering valve 121 adjusts the extension and retraction stroke of the hydraulic cylinder of the first rod 213, limiting the axial movement range of the secondary shaft 220, and realizing fully automatic adaptation of the three temperature zones. Low-temperature preheating section (material temperature < 40℃): The material temperature is lower than the optimal temperature range for enzymatic hydrolysis, the protease activity is extremely low, the metering valve 121 is completely closed, no enzyme preparation is added, the secondary shaft 220 moves to the top of the stroke along the first direction, the stirring blade 320 is at a positive tilt angle, and the secondary stirring component 400 is kept in a vertical scraping state to prevent the generation of additional heat by stirring, shearing and friction, avoid abnormal temperature rise of the material, and stably maintain the low-temperature preheating environment. Optimal enzymatic hydrolysis temperature range (material is in the optimal enzymatic hydrolysis temperature range of 41~59℃): When the temperature reaches the target, the metering valve 121 opens adaptively. The closer the temperature is to the optimal value, the larger the valve opening. The enzyme solution is quantitatively and uniformly injected into the vessel body 110. The secondary shaft 220 moves in the opposite direction to the top of its stroke. The stirring blade 320 has the maximum tilt angle and the mixing range is fully covered. The pin 422 engages to make the secondary stirring component 400 rotate synchronously at high speed. The first plate 412 is pressed down and drives the second plate 413 to turn into an inclined state. The stirring blade 320 and the second plate 413 form a convective impact to maximize the enzymatic hydrolysis efficiency. High temperature warning zone (material temperature > 60℃): When the temperature exceeds the threshold, the protease will be thermally denatured and permanently inactivated. The metering valve 121 is completely closed to stop the addition of enzyme preparation. The secondary shaft 220 returns to the initial position, the stirring blade 320 returns to the small tilt angle state, the stirring intensity is reduced to the minimum, and the auxiliary stirring component 400 is released from the jamming and stops operating to reduce the heat generated by stirring, prevent the protease from thermally denatured and inactivated, and maximize the utilization rate of raw materials.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A process apparatus for producing amino acid fertilizer from waste milk, characterized in that, include: A tank (100) with a temperature sensor (120) installed inside the tank (100). A drive unit (200) is installed on the top of the tank body (100). The drive unit (200) includes a main shaft (210) and a secondary shaft (220). The main shaft (210) has a first groove, which allows the secondary shaft (220) to slide along the first groove in the inner cavity of the main shaft (210). The direction of movement of the secondary shaft (220) is set as a first direction. The main agitator (300) includes a first chamber (310) on which at least three angle-adjustable agitator blades (320) are provided. When the secondary shaft (220) moves along a first direction, it provides power to adjust the angle of the agitator blades (320). The auxiliary stirring component (400) includes a second chamber (410), and a third chamber (420) is rotatably mounted in the inner cavity of the second chamber (410). When the auxiliary shaft (220) controls the moving point along the first direction, the third chamber (420) and the second chamber (410) can be selectively engaged.

2. The process apparatus for producing amino acid fertilizer from waste milk according to claim 1, characterized in that, The tank (100) includes a vessel (110) fixed inside it, on which a metering valve (121) is fixedly installed. A temperature sensor (120) is installed inside the vessel (110). The temperature sensor (120) controls the opening and closing of the metering valve (121) by detecting the material temperature and transmitting the signal to an existing controller.

3. The process apparatus for producing amino acid fertilizer from waste milk according to claim 1, characterized in that, The inner cavity of the first chamber (310) is rotatably connected to a first bevel gear (311), and the first bevel gear (311) is meshed with three second bevel gears (312). Each second bevel gear (312) is fixedly connected to the stirring blade (320). The first bevel gear (311) is provided with an internal thread hole and is threadedly connected to the threaded section (222) in the drive component (200) through the internal thread hole.

4. The process apparatus for producing amino acid fertilizer from waste milk according to claim 1, characterized in that, The main shaft (210) has four second grooves, and each second groove has a movable first slider. One end of each first slider is fixedly connected to the sub-shaft (220), and the other end is fixedly connected to the inner ring of the bearing (212). When the bearing (212) moves in the first direction, the first slider moves along the second groove, so that the sub-shaft (220) can move in the first direction.

5. The process apparatus for producing amino acid fertilizer from waste milk according to claim 4, characterized in that, Two second sliders are fixed to the outer ring of the bearing (212). Each second slider slides on the connecting plate (211). Each connecting plate (211) is fixed on the base (214). The bearing (212) is hinged to the first rod (213) through two movable arms. When the bearing (212) is limited by the connecting plate (211), the first rod (213) drives the secondary shaft (220) to move in the first direction through the movable arms.

6. The process apparatus for producing amino acid fertilizer from waste milk according to claim 1, characterized in that, Four second plates (413) with torsion springs are rotatably mounted on the second cabin (410). The main shaft (210) of the drive component (200) is rotatably mounted on the second cabin (410). Four third slots are provided on the main shaft (210). A second rod (411) is movably connected to each of the third slots. One end of the second rod (411) is fixed on the sub-shaft (220), and the other end of each second rod (411) is fixed with a first plate (412).

7. The process apparatus for producing amino acid fertilizer from waste milk according to claim 6, characterized in that, The sub-shaft (220) is machined in three sections as one piece, consisting of a tapered section (223), a threaded section (222), and a rectangular section (221) in the first direction.

8. The process apparatus for producing amino acid fertilizer from waste milk according to claim 7, characterized in that, When the secondary shaft (220) moves to its maximum range of motion in the opposite direction of the first direction, the second rod (411) drives the first plate (412) to contact the second plate (413), causing the second plate (413) to change its tilt angle.

9. The process apparatus for producing amino acid fertilizer from waste milk according to claim 8, characterized in that, The third compartment (420) is slidably connected with multiple pins (422), each pin (422) is provided with a return spring (423), the other end of each return spring (423) is connected to the inner cavity of the third compartment (420), and the return spring (423) is preloaded and compressed. The inner cavity of the second compartment (410) is provided with four slots (421) that are adapted to the pins (422).

10. The process apparatus for producing amino acid fertilizer from waste milk according to claim 9, characterized in that, Each of the pins (422) is fixedly mounted with a connecting handle (424), and each connecting handle (424) is slidably connected to the conical section (223) of the drive member (200), so that when the conical section (223) moves in the first direction, the connecting handle (424) controls the sliding position of the pin (422) in the cavity of the third compartment (420), thereby selectively controlling the engagement of the pin (422) with the slot (421).

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