An antioxidant preparation device and method for high-oil high-protein premix

Abstract

The application discloses a high-oil high-protein premix anti-oxidation preparation device and method, relates to the technical field of premix anti-oxidation preparation devices, and comprises a supporting frame, a first cavity, a second cavity and a third cavity, the bottom surface of the first cavity is provided with a flange plate, the first cavity and the supporting frame are connected through penetration, the first cavity, the second cavity and the third cavity are fixedly connected through the flange plate, and the side surface of the third cavity close to the top is connected with a noble gas inlet pipe through penetration, the cooperation between the screen, the activated carbon adsorption accessory and the limiting assembly is achieved, the cooperation between the screen and the activated carbon adsorption accessory is achieved, the trace dust contained in the waste gas generated during replacement can be filtered, direct discharge in the air is avoided, the pollution of the waste gas to the air and the damage to the workers are reduced, meanwhile, the limiting assembly facilitates the dismounting and mounting of the screen and the activated carbon adsorption accessory, and the treatment of the waste gas can be improved to a certain extent.

Description

Technical Field

[0001] This invention relates to the technical field of premixed feed oxidation prevention preparation device, specifically a high-oil and high-protein premixed feed oxidation prevention preparation device and method. Background Technology

[0002] The high-oil, high-protein premix oxidation prevention and formulation device is a specialized piece of equipment designed to effectively inhibit the oxidation and deterioration of materials during the production of high-oil, high-protein premixes through a series of structural designs and process controls. Its core function is to block or slow down the oxidation reaction of oils and proteins during the mixing, stirring, and storage stages of the premix, thereby ensuring the nutritional stability, shelf life, and safety of the premix. However, some existing high-oil, high-protein premix oxidation prevention and formulation devices generate gases containing trace amounts of dust during displacement, which can easily lead to raw material waste and air pollution, and also pose certain health hazards to workers.

[0003] An anti-oxidation preparation device and method for high-oil and high-protein premixes are proposed to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-oxidation preparation device and method for high-oil and high-protein premixes, in order to solve the problem mentioned in the background art that some existing anti-oxidation preparation devices for high-oil and high-protein premixes produce exhaust gas containing trace amounts of dust during replacement, which directly causes waste of raw materials and air pollution, and poses certain health hazards to workers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-oxidation preparation device and method for high-oil and high-protein premix, comprising a support frame, a first cavity, a second cavity and a third cavity, wherein a flange is provided on the bottom surface of the first cavity;

[0006] The first cavity and the support frame are connected through each other. The first cavity, the second cavity and the third cavity are fixedly connected by a flange. An inert gas inlet pipe is connected through the surface of the third cavity near the top. A stirring device is fixedly installed in the middle of the top surface of the third cavity. An outlet pipe is connected through the other surface of the third cavity near the top. A cyclone separator is connected through the surface of the outlet pipe away from the third cavity. A fixing plate is connected through the surface of the cyclone separator near the bottom. One side surface of the fixing plate is fixedly connected to the third cavity. An exhaust pipe is connected through the middle of the top surface of the cyclone separator.

[0007] Limiting components are symmetrically arranged on both sides near the top of the exhaust pipe. Each limiting component includes a sleeve fixedly connected to the exhaust pipe, and a threaded rod is connected through the inside of the sleeve.

[0008] A screen is attached to the top surface of the exhaust pipe, and an activated carbon adsorption element is fixedly installed on the bottom surface of the screen.

[0009] Preferably, the threaded rod is threaded with a threaded sleeve on its surface, and a baffle is rotatably connected to the side of the threaded rod away from the threaded sleeve, and the baffle is fixedly connected to the sleeve.

[0010] Preferably, the baffle has a limiting rod that runs through both sides of its surface. One side of the limiting rod is fixedly connected to a threaded sleeve, and the other side of the limiting rod is fixedly connected to a connecting plate. A limiting block is fixedly connected to the middle of the side of the connecting plate away from the limiting rod, and the connecting plate is slidably connected to the sleeve.

[0011] Preferably, a discharge pipe is connected through the middle of the bottom surface of the first cavity, and a valve is fixedly installed inside the discharge pipe.

[0012] Preferably, a feed pipe is connected through one side of the top surface of the third cavity.

[0013] Preferably, a sealing ring is fixedly installed inside the flange.

[0014] Preferably, the activated carbon adsorbent has symmetrically formed limiting grooves on both sides of its surface, and the limiting grooves are engaged with limiting blocks.

[0015] Preferably, a method for preparing an antioxidant premix of high-fat and high-protein feed includes the following steps:

[0016] S1. Raw material preparation: High-fat and high-protein raw materials are added to the sealed cavity consisting of the first cavity, the second cavity and the third cavity according to the formula through the feed pipe. During the feeding process, the feed pipe seal is kept closed to prevent air from entering.

[0017] S2, Inert Gas Replacement: Open the inert gas inlet pipe, introduce inert gas, control the air intake flow rate to 10-20L / min, replace the air in the chamber, monitor the oxygen concentration through the built-in sensor in the chamber, and stop the air intake when the oxygen concentration is ≤0.5%;

[0018] S3. Anti-oxidation stirring: Start the stirring device and stir the raw materials at a speed of 80-150r / min. The stirring time is set to 15-30min according to the amount of raw materials. During the stirring process, inert gas is continuously replenished through the inert gas inlet pipe to maintain a slight positive pressure inside the cavity.

[0019] S4. Waste gas purification treatment: The dust-laden waste gas generated by stirring enters the cyclone separator through the exhaust pipe, recovering more than 95% of the dust material. When the remaining waste gas passes through the exhaust pipe, it is filtered by the screen to remove trace amounts of dust and the activated carbon adsorbent adsorbs odors and grease before being discharged.

[0020] S5. Finished product discharge: After mixing is complete, turn off the mixing device, open the valve of the discharge pipe to discharge the premixed material under the protection of inert gas. After discharge, close the valve and clean the cavity.

[0021] Preferably, in S2, the inert gas is argon or nitrogen, which is dried before being introduced. The replacement time is calculated based on the cavity volume, with a replacement time of ≥5 minutes per cubic meter of volume, and there is no leakage at the cavity connection through the sealing ring of the flange during the replacement process.

[0022] Preferably, in S4, the dust recovery cycle of the cyclone separator is once every 500kg of premixed material produced. During cleaning, the screen and activated carbon adsorbent are disassembled by the limiting component. The screen is replaced when the cumulative filtration area is ≥10m², and the activated carbon adsorbent is replaced when it is saturated. After replacement, it is fixed by the limiting block engaging with the limiting groove.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention, through the coordinated arrangement of a screen, activated carbon adsorption element, and limiting component, enables the screen and activated carbon adsorption element to filter trace amounts of dust in the waste gas generated during replacement, thereby preventing direct emission into the air, reducing air pollution and harm to workers. Simultaneously, the limiting component facilitates the disassembly and installation of the screen and activated carbon adsorption element, thus improving waste gas treatment to a certain extent. The specific details are as follows:

[0025] 1. By incorporating a screen, activated carbon adsorption components, and a limiting assembly, when disassembling the screen and activated carbon adsorption components after prolonged use, the operator can rotate the threaded rod. This rotation moves the threaded sleeve, which is symmetrically equipped with limiting rods. These limiting rods are connected to a baffle plate, which is fixedly connected to the sleeve. The cooperation between the limiting rods, baffle plate, and sleeve limits the movement of the threaded sleeve. This movement of the threaded rod then moves the threaded sleeve, causing the limiting rods, connecting plate, and limiting block to move as well. This causes the limiting block to separate from the limiting groove, facilitating the disassembly of the screen and activated carbon adsorption components. Disassembly and replacement are performed. When installing the screen and activated carbon adsorbent, the activated carbon adsorbent is placed inside the exhaust pipe, so that the outer wall of the activated carbon adsorbent is in contact with the inner wall of the exhaust pipe, and the bottom of the screen is in contact with the top of the exhaust pipe. Then, by rotating the threaded rod, the threaded rod drives the threaded sleeve to move, and the threaded sleeve drives the limiting rod, connecting plate and limiting block to move. This allows the limiting rod to engage with the limiting groove opened on the activated carbon adsorbent, thereby limiting the screen and activated carbon adsorbent. This prevents the screen and activated carbon adsorbent from separating from the exhaust pipe due to excessive gas impact force during exhaust.

[0026] 2. By setting up a first chamber, a second chamber, a third chamber, flanges, sealing rings, and a cyclone separator, the first, second, and third chambers are mainly connected by flanges. At the same time, the sealing rings seal the connection points of the first, second, and third chambers to prevent leakage. The cyclone separator allows for the recovery of more than 95% of the dust material in the exhaust gas. Then, the exhaust gas is purified by passing through a screen and activated carbon adsorption element to remove odors and trace amounts of oil before being discharged. The cyclone separator is existing technology, and its working principle and power connection are the same as existing technologies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall exploded structure in this invention;

[0029] Figure 3 For the present invention Figure 1 Enlarged structural diagram of region A in the middle;

[0030] Figure 4 This is a schematic cross-sectional view of the limiting component in this invention;

[0031] Figure 5 This is a schematic diagram of the overall exploded structure of the limiting component in this invention;

[0032] Figure 6 This is a schematic diagram of the structure of the screen, activated carbon adsorption component, and limiting groove in this invention.

[0033] In the diagram: 1. Support frame; 2. First cavity; 3. Flange; 4. Second cavity; 5. Third cavity; 6. Inert gas inlet pipe; 7. Stirring device; 8. Gas outlet pipe; 9. Cyclone separator; 10. Fixing plate; 11. Exhaust pipe; 12. Discharge pipe; 13. Valve; 14. Feed pipe; 15. Sealing ring; 16. Limiting assembly; 1601. Sleeve; 1602. Threaded rod; 1603. Threaded sleeve; 1604. Baffle; 1605. Limiting rod; 1606. Connecting plate; 1607. Limiting block; 17. Screen; 18. Activated carbon adsorption component; 19. Limiting groove. 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] Please see Figure 1-5 This invention provides a technical solution: an anti-oxidation preparation device for high-oil and high-protein premix, comprising a support frame 1, a first cavity 2, a second cavity 4, and a third cavity 5. A flange 3 is provided on the bottom surface of the first cavity 2. The first cavity 2 and the support frame 1 are connected through-hole. The first cavity 2, the second cavity 4, and the third cavity 5 are fixedly connected by the flange 3. An inert gas inlet pipe 6 is connected through-hole to one side of the third cavity 5 near the top. A stirring device 7 is fixedly installed in the middle of the top surface of the third cavity 5. An outlet pipe 6 is connected through-hole to the other side of the third cavity 5 near the top. The air pipe 8 has a cyclone separator 9 connected through its surface on the side away from the third cavity 5. A fixing plate 10 is connected through its surface near the bottom of the cyclone separator 9. One side of the fixing plate 10 is fixedly connected to the third cavity 5. An exhaust pipe 11 is connected through its center on the top surface of the cyclone separator 9. The system also includes: limit components 16 symmetrically arranged on both sides of the exhaust pipe 11 near the top; wherein the limit components 16 include a sleeve 1601 fixedly connected to the exhaust pipe 11; wherein a threaded rod 1602 is connected through the inside of the sleeve 1601, such as... Figure 1-5As shown, by setting the cooperation between the screen 17, the activated carbon adsorbent 18, and the limiting component 16, the screen 17 and the activated carbon adsorbent 18 can filter the trace dust contained in the waste gas generated during the replacement process, thereby avoiding direct emission into the air, reducing air pollution and harm to workers. At the same time, the limiting component 16 facilitates the disassembly and installation of the screen 17 and the activated carbon adsorbent 18, which can improve the treatment of waste gas to a certain extent. Meanwhile, the inert gas inlet pipe 6 is connected to the inert gas device, so that the inert gas is delivered into the whole circular cavity composed of the first cavity 2, the second cavity 4, and the third cavity 5, so that the interior of the whole circular cavity forms an oxygen-free environment. At the same time, multiple fiber optic oxygen sensors and infrared temperature sensors are implanted inside the whole circular cavity to monitor the oxygen concentration and temperature in different areas in real time.

[0036] A threaded sleeve 1603 is threaded onto the surface of the threaded rod 1602. A baffle 1604 is rotatably connected to the side of the threaded rod 1602 away from the threaded sleeve 1603. The baffle 1604 is fixedly connected to the sleeve 1601. Limiting rods 1605 are connected through both sides of the surface of the baffle 1604. One side of the limiting rod 1605 is fixedly connected to the threaded sleeve 1603, and a connecting plate 1606 is fixedly connected to the other side of the limiting rod 1605. A limiting block 1607 is fixedly connected to the middle of the side of the connecting plate 1606 away from the limiting rod 1605. The connecting plate 1606 is slidably connected to the sleeve 1601. Figure 4 , 5 As shown, when it is necessary to disassemble the screen 17 and activated carbon adsorption component 18 that have been used for a long time, the operator can rotate the threaded rod 1602. The rotation of the threaded rod 1602 can drive the threaded sleeve 1603 to move. At the same time, the threaded sleeve 1603 is symmetrically equipped with limit rods 1605, which are connected to the baffle 1604. The baffle 1604 is fixedly connected to the sleeve 1601. Through the cooperation between the limit rod 1605, the baffle 1604 and the sleeve 1601, the threaded sleeve 1603 can be limited, so that the rotation of the threaded rod 1602 can drive the threaded sleeve 1603 to move. As the threaded sleeve 1603 moves, it drives the limit rod 1605, the connecting plate 1606 and the limit block 1607 to move, so that the limit block 1607 separates from the limit groove 19, which facilitates the disassembly and replacement of the screen 17 and activated carbon adsorption component 18.

[0037] A discharge pipe 12 is connected through the middle of the bottom surface of the first cavity 2, and a valve 13 is fixedly installed inside the discharge pipe 12. Figure 1 As shown, this allows materials inside the cavity to be discharged, and valve 13 can be selected as a manual valve or an electric valve according to actual usage requirements.

[0038] A feed pipe 14 is connected through one side of the top surface of the third cavity 5, such as... Figure 1 As shown, the feed pipe 14 can pour materials into the cavity, and a sealing element is provided on the feed pipe 14.

[0039] A sealing ring 15 is fixedly installed inside the flange 3, such as Figure 2 As shown, the sealing ring 15 seals the connection between the first cavity 2, the second cavity 4 and the third cavity 5, thereby preventing leakage.

[0040] A screen 17 is attached to the top surface of the exhaust pipe 11, and an activated carbon adsorbent 18 is fixedly installed on the bottom surface of the screen 17. Limiting grooves 19 are symmetrically formed on both sides of the surface of the activated carbon adsorbent 18, and the limiting grooves 19 are engaged with limiting blocks 1607. Figure 6 As shown, when installing the screen 17 and the activated carbon adsorbent 18, the activated carbon adsorbent 18 is placed inside the exhaust pipe 11, so that the outer wall of the activated carbon adsorbent 18 is in contact with the inner wall of the exhaust pipe 11, and the bottom of the screen 17 is in contact with the top of the exhaust pipe 11. At this time, by rotating the threaded rod 1602, the threaded rod 1602 drives the threaded sleeve 1603 to move, and the threaded sleeve 1603 drives the limiting rod 1605, the connecting plate 1606 and the limiting block 1607 to move, so that the limiting rod 1605 engages with the limiting groove 19 opened on the activated carbon adsorbent 18, thereby limiting the screen 17 and the activated carbon adsorbent 18, so that during exhaust, the screen 17 and the activated carbon adsorbent 18 will not separate from the exhaust pipe 11 due to excessive gas impact force.

[0041] This invention also discloses a method for preparing a high-oil, high-protein premix with antioxidant properties, which is used in an apparatus for preparing a high-oil, high-protein premix with antioxidant properties, and includes the following steps:

[0042] S1. Raw material preparation: High-fat and high-protein raw materials are added to the sealed cavity composed of the first cavity 2, the second cavity 4 and the third cavity 5 according to the ratio through the feed pipe 14. During the feeding process, the feed pipe 14 is kept closed to prevent air from entering.

[0043] S2, Inert Gas Replacement: Open the inert gas inlet pipe 6 and introduce inert gas (purity ≥99.99%). Control the air intake flow rate to 10-20L / min to replace the air in the chamber. Monitor the oxygen concentration through the built-in sensor in the chamber. Stop the air intake when the oxygen concentration is ≤0.5%.

[0044] S3. Anti-oxidation stirring: Start the stirring device 7 and stir the raw materials at a speed of 80-150r / min. The stirring time is set to 15-30min according to the amount of raw materials. During the stirring process, inert gas is continuously replenished through the inert gas inlet pipe 6 to maintain a slight positive pressure (0.01-0.02MPa) inside the cavity.

[0045] S4. Waste gas purification treatment: The dust-containing waste gas generated by stirring enters the cyclone separator 9 through the exhaust pipe 8, recovering more than 95% of the dust material. When the remaining waste gas passes through the exhaust pipe 11, it is filtered by the screen 17 to remove trace amounts of dust, and the activated carbon adsorption element 18 adsorbs odors and grease before being discharged.

[0046] S5. Finished product discharge: After mixing is completed, turn off the mixing device 7, open the valve 13 of the discharge pipe 12 to discharge the premixed material under the protection of inert gas. After discharge is completed, close the valve 13 and clean the cavity.

[0047] In S2, the inert gas is argon or nitrogen, which is dried before being introduced (dew point ≤ -40℃). The replacement time is calculated based on the cavity volume, with a replacement time of ≥ 5 minutes per cubic meter of volume. During the replacement process, the sealing ring 15 of the flange 3 ensures that there is no leakage at the cavity connection.

[0048] In S4, the dust recovery cycle of the cyclone separator 9 is once every 500kg of premixed material produced. During cleaning, the screen 17 and the activated carbon adsorbent 18 are disassembled by the limiting component 16. The screen 17 is replaced when the cumulative filtration area is ≥10m², and the activated carbon adsorbent 18 is replaced when the adsorption is saturated (adsorption amount ≤50% of the initial value). After replacement, the limiting block 1607 is engaged and fixed with the limiting groove 19.

[0049] Working principle: Before using this high-oil, high-protein premix anti-oxidation preparation device, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, by first setting up a screen 17, an activated carbon adsorption component 18, and a limiting component 16, when it is necessary to disassemble the screen 17 and activated carbon adsorption component 18 after long-term use, the operator can rotate the threaded rod 1602, which will drive the threaded sleeve 1603 to move. At the same time, limiting rods 1605 are symmetrically installed on the threaded sleeve 1603, and the limiting rods 1605 are connected to the baffle 1604. The baffle 1604 is fixedly connected to the sleeve 1601. Through the cooperation between the limiting rods 1605, the baffle 1604, and the sleeve 1601, the threaded sleeve 1603 can be limited, so that the rotation of the threaded rod 1602 can drive the movement of the threaded sleeve 1603. As the threaded sleeve 1603 moves, it drives the limiting rods 1605, the connecting plate 1606, and the limiting block 1607 to move, thereby separating the limiting block 1607 from the limiting groove 19. This facilitates the disassembly and replacement of the screen 17 and activated carbon adsorbent 18. During installation, the activated carbon adsorbent 18 is placed inside the exhaust pipe 11, with its outer wall against the inner wall of the exhaust pipe 11 and the bottom of the screen 17 against the top of the exhaust pipe 11. Rotating the threaded rod 1602 moves the threaded sleeve 1603, which in turn moves the limiting rod 1605, connecting plate 1606, and limiting block 1607. This causes the limiting rod 1605 to engage with the limiting groove 19 on the activated carbon adsorbent 18, thus limiting the screen 17 and activated carbon adsorbent 18. This prevents excessive gas impact during exhaust, which could cause the screen 17 and activated carbon adsorbent 18 to separate from the exhaust pipe 11.

[0050] Secondly, by setting up a first chamber 2, a second chamber 4, a third chamber 5, a flange 3, a sealing ring 15, and a cyclone separator 9, the first chamber 2, the second chamber 4, and the third chamber 5 are mainly connected by the flange 3. At the same time, the sealing ring 15 seals the connection between the first chamber 2, the second chamber 4, and the third chamber 5, thereby preventing leakage. Meanwhile, the cyclone separator 9 allows for the recovery of more than 95% of the dust material in the exhaust gas. Then, the odor and trace amounts of oil are purified by the screen 17 and the activated carbon adsorption element 18 before being discharged. The cyclone separator 9 is existing technology, and its working principle and power connection are the same as existing technologies.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An antioxidant preparation device for high-oil high-protein premix, comprising a support frame (1), a first cavity (2), a second cavity (4) and a third cavity (5); the first cavity (2) is connected with the support frame (1), the first cavity (2), the second cavity (4) and the third cavity (5) are fixedly connected through the flange (3), the third cavity (5) is connected with the inert gas inlet pipe (6) on one side surface near the top, the stirring device (7) is fixedly installed on the middle of the top surface of the third cavity (5), the other side surface of the third cavity (5) near the top is connected with the gas outlet pipe (8), the gas outlet pipe (8) is connected with the cyclone separator (9) on the side surface away from the third cavity (5), the cyclone separator (9) is connected with the fixed plate (10) on the side surface near the bottom, the side surface of the fixed plate (10) is fixedly connected with the third cavity (5), the top surface of the cyclone separator (9) is connected with the exhaust pipe (11) in the middle; limiting assembly (16) is symmetrically arranged on both sides of the top surface of the exhaust pipe (11), the limiting assembly (16) comprises a sleeve (1601) fixedly connected with the exhaust pipe (11), and the inside of the sleeve (1601) is connected with a threaded rod (1602); the top surface of the exhaust pipe (11) is connected with a screen (17), and the bottom surface of the screen (17) is fixedly installed with an activated carbon adsorption accessory (18); the surface of the threaded rod (1602) is threadedly sleeved with a threaded sleeve (1603), and the side surface of the threaded rod (1602) away from the threaded sleeve (1603) is rotatably connected with a baffle (1604), and the baffle (1604) is fixedly connected with the sleeve (1601); the surface of the baffle (1604) is connected with a limiting rod (1605) on both sides, one side surface of the limiting rod (1605) is fixedly connected with the threaded sleeve (1603), the other side surface of the limiting rod (1605) is fixedly connected with a connecting plate (1606), the middle of the side surface of the connecting plate (1606) away from the limiting rod (1605) is fixedly connected with a limiting block (1607), and the connecting plate (1606) is slidably connected with the sleeve (1601); the inside of the flange (3) is fixedly installed with a sealing ring (15); limiting grooves (19) are symmetrically formed on both sides of the surface of the activated carbon adsorption accessory (18), and the limiting grooves (19) are connected with the limiting block (1607).

2. The high-fat high-protein premix antioxidant preparation device according to claim 1, characterized in that: the bottom surface of the first cavity (2) is connected with a discharge pipe (12) in the middle, and the inside of the discharge pipe (12) is fixedly installed with a valve (13).

3. The high-fat high-protein premix antioxidant preparation device according to claim 1, characterized in that: the top surface of the third cavity (5) is connected with a feeding pipe (14) on one side.

4. The high oil and high protein premix antioxidation preparation method, applied to the high oil and high protein premix antioxidation preparation device of any one of claims 1-3, characterized in that, comprising the following steps: S1, raw material preparation: add high-oil high-protein raw materials according to the ratio through the feeding pipe (14) into the closed cavity composed of the first cavity (2), the second cavity (4) and the third cavity (5), keep the feeding pipe (14) closed during the feeding process to avoid air entering; S2, inert gas replacement: open inert gas inlet pipe (6), and inert gas is introduced. The gas flow rate is controlled to be 10-20 L / min. The air in the cavity is replaced. The oxygen concentration is monitored by the sensor in the cavity. When the oxygen concentration is less than or equal to 0.5%, the gas inlet is stopped. S3, anti-oxidation stirring: start the stirring device (7), and the raw materials are stirred and mixed at a speed of 80-150 r / min. The stirring time is set to 15-30 min according to the amount of raw materials. In the stirring process, inert gas is continuously supplied through the inert gas inlet pipe (6) to maintain a slight positive pressure in the cavity. S4, waste gas purification treatment: the dust-containing waste gas generated by stirring enters the cyclone separator (9) through the gas outlet pipe (8), and more than 95% of the dust material is recovered. When the remaining waste gas passes through the exhaust pipe (11), it is filtered through the screen (17), adsorbed by the activated carbon adsorption accessory (18), and then discharged. S5, finished product discharge: after stirring, the stirring device (7) is closed, the valve (13) of the discharge pipe (12) is opened, and the premix is discharged under the protection of inert gas. After the discharge is completed, the valve (13) is closed and the cavity is cleaned.

5. The antioxidant formulation method of high oil and high protein premix according to claim 4, characterized in that: In S2, the inert gas is argon or nitrogen, which is dried before being introduced. The replacement time is calculated according to the volume of the cavity. The replacement time is greater than or equal to 5 min per cubic meter of volume, and there is no leakage at the cavity connection of the sealing ring (15) of the flange (3) during the replacement process.

6. The method of claim 4, wherein the high oil and high protein premix is formulated with antioxidants. In S4, the dust recovery period of the cyclone separator (9) is 500 kg of premix per production. When cleaning, the screen (17) and the activated carbon adsorption accessory (18) are disassembled through the limiting assembly (16). The screen (17) is replaced when the cumulative filtering area is greater than or equal to 10 m². The activated carbon adsorption accessory (18) is replaced when it is saturated. After replacement, the limiting block (1607) is fixed by clamping the limiting groove (19).

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