Hydroxylation reaction equipment and use method thereof

Abstract

The invention discloses hydroxylation reaction equipment and a use method thereof, and relates to the technical field of hydroxylation reaction equipment.The hydroxylation reaction equipment comprises an equipment frame, a bearing shaft frame is welded to the inner wall of an inner cavity of the equipment frame, and a stirring shaft is movably arranged in the bearing shaft frame in a penetrating mode; inner rotating paddles are arranged on the outer wall of the stirring shaft; the heat conduction cavity is formed in the equipment frame and located outside an inner cavity of the equipment frame, an exhaust guide pipe and a gas injection guide pipe are arranged on the outer wall of one side of the equipment frame, and the exhaust guide pipe and the gas injection guide pipe communicate with the interior of the heat conduction cavity; the problems that according to existing hydroxylation reaction equipment, the interior of a tank body is stirred through an arranged stirring mechanism, the reaction rate is increased, the stirring mechanism needs to be continuously driven by electrical equipment, heat exchange of a temperature circulation mechanism is inconvenient, and consequently the use energy consumption of the hydroxylation reaction equipment is too high are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydroxylation reaction equipment, in particular to a hydroxylation reaction equipment and a use method thereof. Background Art

[0002] Hydroxylation reaction equipment is a device used for hydroxylation reaction, which can react organic compounds with water or alcohol under high temperature and high pressure conditions to generate corresponding hydroxyl compounds.

[0003] For example, the announcement number is: CN118949890A (named a directional hydroxylation reaction device for dichlorotoluene and its use method), which includes a tank body, a cover body set on the top of the tank body, and a stirring paddle located in the tank body, the head of the stirring paddle passes through the cover body, and the directional hydroxylation reaction device for dichlorotoluene also includes: an engaging transmission mechanism, which includes a gear fixed to the head of the stirring paddle and a tooth plate engaged with the gear. When in use, the tooth plate is moved back and forth to drive the stirring paddle to rotate forward and backward through the engaging transmission; a reciprocating transmission mechanism, which is set at the top of the tank body and is used to drive the tooth plate to move back and forth to realize the transmission of the gear; a temperature circulation mechanism, which is set in the side wall of the tank body and can evenly transfer the temperature to various parts on the inner wall of the tank body through a spiral tubular structure, so as to Various reactants in the directional hydroxylation reaction of chlorotoluene are added to a tank body, which is then covered with a lid. A toothed plate is driven to move back and forth by a reciprocating transmission mechanism, and the toothed plate is driven to rotate clockwise or counterclockwise by a meshing transmission, ultimately driving a stirring paddle to rotate clockwise or counterclockwise, thereby fully stirring the reactants inside the tank body. During production of the equipment, the length of the toothed plate and the distance of the reciprocating transmission mechanism can be selected as needed to adjust the time corresponding to forward and reverse rotation. In this way, compared with the numerous power supply components used in the prior art, the stirring paddle can not only rotate in both directions, but also has a simple circuit design, thereby reducing the production difficulty and use cost of the directional hydroxylation reaction equipment, thereby solving the problem in the background art that the circuit design is relatively complex, which seriously increases the production difficulty and use cost of the directional hydroxylation reaction equipment.

[0004] The above-mentioned hydroxylation reaction equipment accelerates the reaction rate by stirring the inside of the tank through the stirring mechanism provided. However, the stirring mechanism requires continuous driving of the electric device, and the heat exchange of the temperature circulation mechanism is relatively inconvenient, resulting in the problem of excessive energy consumption of the hydroxylation reaction equipment. To this end, we provide a hydroxylation reaction equipment and a method for using the same. Summary of the Invention

[0005] The object of the present invention is to provide a hydroxylation reaction device and a method for using the same, so as to solve the problem that the existing hydroxylation reaction equipment proposed in the above background technology accelerates the reaction rate by stirring the inside of the tank through a stirring mechanism, but the stirring mechanism requires continuous drive of an electric device, and the heat exchange of the temperature circulation mechanism is relatively inconvenient, resulting in excessive energy consumption of the hydroxylation reaction equipment.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a hydroxylation reaction device, comprising an equipment frame, a supporting shaft frame welded to the inner wall of the internal cavity of the equipment frame, a stirring shaft movably arranged inside the supporting shaft frame, and an inner rotating paddle arranged on the outer wall of the stirring shaft;

[0007] Also includes:

[0008] A heat-conducting cavity is provided inside the device frame, and the heat-conducting cavity is located outside the cavity inside the device frame. An exhaust duct and an air injection duct are provided on one outer wall of the device frame, and both the exhaust duct and the air injection duct are connected to the interior of the heat-conducting cavity.

[0009] A top connecting shaft is welded to the upper end of the stirring shaft, the diameter of the top connecting shaft is larger than the diameter of the internal through hole of the supporting shaft frame, and a linkage gear is integrally formed on the outer wall of the top connecting shaft, and a transmission gear is meshed and connected to one side of the linkage gear;

[0010] A hollow carrier box is provided on the outer wall of the terminal end of the gas injection conduit, and the hollow carrier box is connected to the interior of the gas injection conduit. A bearing seat is provided inside the hollow carrier box, and a transmission impeller is movably connected to the upper end of the bearing seat. An extension shaft is integrally formed at the center position of the upper end of the transmission impeller. The extension shaft and the hollow carrier box are movably connected. A supporting plate is welded to the upper end of the extension shaft, and the transmission gear is supported and connected to the extension shaft through the supporting plate.

[0011] A guide slide is arranged on an outer wall of one side of the equipment frame, and a screw slider is movably provided inside the guide slide. An electric push rod is fixed to the upper end of the screw slider by screws, and an extension block is welded on the top position of the electric push rod piston rod. A lifting carrier is integrally formed on one side of the extension block.

[0012] Preferably, a driving motor is provided at the upper end of the lifting carrier, a linkage shaft is provided below the lifting carrier, the output shaft of the driving motor passes through the lifting carrier and is welded to the linkage shaft, and a cross joint is provided on the top of the top connecting shaft.

[0013] Preferably, a cross plug is welded on the lower end of the linkage shaft, and the linkage shaft is connected to the cross connection groove on the top of the top connection shaft through the cross plug.

[0014] Preferably, a vertical screw is welded on the upper end of the supporting plate, the transmission gear is sleeved and connected to the vertical screw, a clamping nut is screwed and installed on the vertical screw, and the transmission gear is limit-connected to the vertical screw through the clamping nut.

[0015] Preferably, a threaded screw is provided inside the guide slide, and the screw slider is movably connected to the guide slide through the threaded screw. A servo motor is provided at one end of the guide slide, and the output shaft of the servo motor is transmission-connected to the threaded screw through a coupling.

[0016] Preferably, guide rods are provided on both sides of the threaded screw, the two guide rods and the guide slide are an integrated structure, and the screw slider is movably connected to the guide slide through the two guide rods.

[0017] Preferably, a discharge port is integrally formed inside the linkage gear, and the discharge port is located directly above the internal cavity of the equipment frame.

[0018] Preferably, a discharge valve is provided at the bottom center of the equipment frame, and a material guide pipe is provided at the lower end of the discharge valve.

[0019] Preferably, two supporting frames are welded on the outer walls of both sides of the equipment frame, and a reinforcing connecting rod is welded between two adjacent supporting frames.

[0020] Preferably, the method for using the hydroxylation reaction device comprises the following steps:

[0021] Step 1: Pour the raw materials for the hydroxylation reaction into the internal cavity of the equipment frame through the discharge port, and then use the steam generator to inject high-temperature steam into the heat-conducting cavity inside the equipment frame through the gas injection pipe to perform heat conduction treatment on the internal cavity of the equipment frame;

[0022] Step 2: The electric push rod is then used to drive the lifting carrier to fall, so that the cross plug is inserted into the inside of the cross joint. The top joint shaft is then driven by the driving motor to rotate, and the stirring shaft is then driven to rotate. The raw materials in the cavity inside the equipment frame are stirred by the internal rotating paddle, so that the raw materials undergo high-temperature hydroxylation reaction in the equipment frame.

[0023] Step 3: The steam in the heat-conducting cavity is discharged through the exhaust duct. The discharged steam temperature is lower than the temperature required for heating. The discharged steam is injected back into the steam generator for reheating, thereby saving steam consumption required for heating.

[0024] Step 4: When injecting high-temperature steam, install the transmission gear onto the vertical screw as needed, and use the electric push rod to lift the lifting carrier so that the cross plug is out of the cross joint. At this time, steam is injected under high pressure. When it passes through the hollow carrier box, it drives the transmission impeller inside the hollow carrier box to rotate, so that the transmission impeller drives the transmission gear to rotate.

[0025] Step 5: The transmission gear rotates to drive the linkage gear meshing with it to rotate, and the stirring shaft rotates synchronously, thereby driving the stirring shaft to rotate and stir the raw materials inside the equipment frame without the help of a drive motor;

[0026] Step 6: Finally, open the discharge valve to discharge the product after the hydroxylation reaction through the guide pipe, and use the servo motor to drive the threaded screw to rotate. With the help of the linkage of the screw slider, the drive motor and the lifting carrier are moved away from the top of the equipment frame to facilitate the next discharge processing and heat dissipation inside the equipment frame.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention adopts two driving and stirring methods to carry out the hydroxylation reaction. The driving motor drives the stirring shaft to rotate at a faster speed with higher energy consumption. The transmission gear is installed on the vertical screw, and the lifting carrier is lifted by the electric push rod to disengage the cross plug from the cross joint. At this time, steam is injected under high pressure. When passing through the hollow carrier box, it drives the transmission impeller inside the hollow carrier box to rotate, so that the transmission impeller drives the transmission gear to rotate, and the transmission gear rotation drives the linkage gear meshed with it to rotate, and the stirring shaft rotates synchronously, so that the stirring shaft can be driven to rotate without the help of the driving motor to stir the raw materials inside the equipment frame. No energy consumption is required, the speed is low, and the appropriate driving method can be selected according to the energy consumption requirements to reduce limitations.

[0029] 2. The steam in the heat-conducting cavity is discharged through the exhaust duct. The temperature of the discharged steam is lower than the temperature required for heating. The discharged steam is injected back into the steam generator for reheating, saving the steam consumption required for heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view of the hydroxylation reaction equipment structure of the present invention;

[0031] Figure 2 It is a bottom view of the hydroxylation reaction equipment structure of the present invention;

[0032] Figure 3 It is a front view of the hydroxylation reaction equipment structure of the present invention;

[0033] Figure 4 This is a rear view of the hydroxylation reaction equipment structure of the present invention;

[0034] Figure 5 This is a cross-sectional view of the internal longitudinal structure of the hydroxylation reaction equipment of the present invention;

[0035] Figure 6 This is a cross-sectional view of the internal transverse structure of the hydroxylation reaction equipment of the present invention;

[0036] In the figure: 1. Equipment frame; 2. Support frame; 3. Guide slide; 4. Servo motor; 5. Lead screw; 6. Guide rod; 7. Electric push rod; 8. Extension block; 9. Lifting carrier; 10. Drive motor; 11. Linkage gear; 12. Conduction gear; 13. Exhaust duct; 14. Gas injection duct; 15. Vertical screw; 16. Pressing nut; 17. Reinforcement connecting rod; 18. Discharge valve; 19. Guide pipe; 20. Hollow load box; 21. Extension shaft; 22. Support tray; 23. Discharge port; 24. Linkage shaft; 25. Cross plug; 26. Top shaft; 27. Cross joint; 28. Lead screw slider; 29. ​​Heat conduction cavity; 30. Agitator shaft; 31. Internal rotor; 32. Support shaft frame; 33. Bearing seat; 34. Transmission impeller. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] See also Figure 1-6 The present invention provides an embodiment of a hydroxylation reaction device, comprising a device frame 1, a supporting shaft frame 32 welded to the inner wall of the internal cavity of the device frame 1, a stirring shaft 30 movably provided inside the supporting shaft frame 32, and an inner rotating paddle 31 arranged on the outer wall of the stirring shaft 30;

[0039] Also includes:

[0040] A heat-conducting cavity 29 is provided inside the device frame 1 and outside the cavity inside the device frame 1. An exhaust conduit 13 and an air injection conduit 14 are provided on one outer wall of the device frame 1. Both the exhaust conduit 13 and the air injection conduit 14 are connected to the interior of the heat-conducting cavity 29.

[0041] The top connecting shaft 26 is welded to the upper end of the stirring shaft 30. The diameter of the top connecting shaft 26 is larger than the diameter of the internal perforation of the supporting shaft frame 32. The outer wall of the top connecting shaft 26 is integrally formed with a linkage gear 11. One side of the linkage gear 11 is meshedly connected to the transmission gear 12.

[0042] A hollow carrier box 20 is disposed on the outer wall of the distal end of the gas injection conduit 14 and is in communication with the interior of the gas injection conduit 14. A bearing seat 33 is disposed within the hollow carrier box 20. A transmission impeller 34 is movably connected to the upper end of the bearing seat 33. An extension shaft 21 is integrally formed at the center of the upper end of the transmission impeller 34. The extension shaft 21 extends and movably connects to the hollow carrier box 20. A supporting plate 22 is welded to the upper end of the extension shaft 21. The transmission gear 12 is supported and connected to the extension shaft 21 via the supporting plate 22.

[0043] The guide slide 3 is arranged on the outer wall of one side of the equipment frame 1, and a screw slider 28 is movably provided inside the guide slide 3. An electric push rod 7 is fixed to the upper end of the screw slider 28 by screws. An extension block 8 is welded to the top position of the piston rod of the electric push rod 7, and a lifting carrier 9 is integrally formed on one side of the extension block 8.

[0044] See also Figure 3 The upper end of the lifting carrier 9 is provided with a driving motor 10, and the lower end of the lifting carrier 9 is provided with a linkage shaft 24. The output shaft of the driving motor 10 passes through the lifting carrier 9 and is welded to the linkage shaft 24. The top of the top connecting shaft 26 is provided with a cross joint 27. The driving motor 10 provided at the upper end of the lifting carrier 9 plays the role of driving the linkage shaft 24 to rotate. Please refer to Figure 3 The lower end of the linkage shaft 24 is welded with a cross plug 25, and the linkage shaft 24 is connected to the cross groove 27 at the top of the top shaft 26 through the cross plug 25. The cross plug 25 welded at the lower end of the linkage shaft 24 plays the role of corresponding connection with the cross groove 27. Please refer to Figure 1 and Figure 2 The upper end of the supporting plate 22 is welded with a vertical screw 15, and the transmission gear 12 is sleeved and connected with the vertical screw 15. A clamping nut 16 is screwed and installed on the vertical screw 15. The transmission gear 12 is limitedly connected to the vertical screw 15 through the clamping nut 16. The vertical screw 15 welded on the upper end of the supporting plate 22 plays a role in facilitating the sleeve installation of the transmission gear 12. Please refer to Figure 4 The guide slide 3 is provided with a threaded screw 5 inside, and the screw slider 28 is movably connected to the guide slide 3 through the threaded screw 5. A servo motor 4 is provided at one end of the guide slide 3. The output shaft of the servo motor 4 is connected to the threaded screw 5 through a coupling. The threaded screw 5 provided inside the guide slide 3 plays the role of driving the screw slider 28 and the electric push rod 7 to move. Please refer to Figure 4 , guide rods 6 are provided on both sides of the threaded screw 5. The two guide rods 6 and the guide slide 3 are an integral structure. The screw slider 28 is connected to the guide slide 3 through the two guide rods 6. The guide rods 6 provided on both sides of the threaded screw 5 play a role in assisting the threaded screw 5 in guiding the sliding movement. Please refer to Figure 3The internal integral molding of the linkage gear 11 is provided with a discharge port 23, which is located just above the internal cavity of the equipment frame 1. The discharge port 23 provided by the internal integral molding of the linkage gear 11 serves to facilitate the placement of raw materials into the equipment frame 1. Please refer to Figure 2 The bottom center of the equipment frame 1 is connected to a discharge valve 18, and the lower end of the discharge valve 18 is connected to a guide pipe 19. The discharge valve 18 connected to the bottom center of the equipment frame 1 controls the opening and closing of the guide pipe 19, thereby controlling the discharge of the internal cavity of the equipment frame 1. Please refer to Figure 1 Two supporting frames 2 are welded on the outer walls of both sides of the equipment frame 1, and a reinforcing connecting rod 17 is welded between two adjacent supporting frames 2. The two supporting frames 2 welded on the outer walls of both sides of the equipment frame 1 play the role of erecting and supporting the equipment frame 1.

[0045] See also Figure 1-6 A method for using a hydroxylation reaction device comprises the following steps:

[0046] Step 1: Pour the raw materials for the hydroxylation reaction into the internal cavity of the equipment frame 1 through the discharge port 23, and then use the steam generator to inject high-temperature steam into the heat-conducting cavity 29 inside the equipment frame 1 through the gas injection pipe 14 to perform heat conduction treatment on the internal cavity of the equipment frame 1;

[0047] Step 2: The electric push rod 7 drives the lifting carrier 9 to move downward, so that the cross plug 25 is inserted into the cross joint 27. The driving motor 10 then drives the top connecting shaft 26 to rotate, thereby driving the stirring shaft 30 to rotate. The internal rotating paddle 31 stirs the raw materials in the internal cavity of the equipment frame 1, so that the raw materials undergo a high-temperature hydroxylation reaction in the equipment frame 1.

[0048] Step 3: The steam in the heat-conducting cavity 29 is discharged through the exhaust duct 13. The discharged steam temperature is lower than the temperature required for heating. The discharged steam is injected back into the steam generator for reheating, thereby saving steam consumption required for heating.

[0049] Step 4: When injecting high-temperature steam, the transmission gear 12 is installed on the vertical screw 15 as needed, and the lifting carrier 9 is lifted by the electric push rod 7, so that the cross plug 25 is disengaged from the cross joint 27. At this time, steam is injected under high pressure and drives the transmission impeller 34 inside the hollow carrier box 20 to rotate when passing through the hollow carrier box 20, so that the transmission impeller 34 drives the transmission gear 12 to rotate.

[0050] Step 5: The transmission gear 12 rotates to drive the linkage gear 11 meshing with it to rotate, and the stirring shaft 30 rotates synchronously, thereby driving the stirring shaft 30 to rotate and stir the raw materials inside the equipment frame 1 without the help of the drive motor 10;

[0051] Step 6: Finally, open the discharge valve 18 to discharge the product after the hydroxylation reaction through the guide pipe 19, and drive the threaded screw 5 to rotate through the servo motor 4. With the help of the linkage of the screw slider 28, the drive motor 10 and the lifting carrier 9 are removed from the top of the equipment frame 1 to facilitate the next discharge processing and heat dissipation inside the equipment frame 1.

[0052] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hydroxylation reaction device, comprising an equipment frame (1), a supporting shaft frame (32) welded to the inner wall of the internal cavity of the equipment frame (1), a stirring shaft (30) movably arranged inside the supporting shaft frame (32), and an inner rotating paddle (31) arranged on the outer wall of the stirring shaft (30); Its characteristics are: Also includes: A heat-conducting cavity (29) is provided inside the device frame (1), and the heat-conducting cavity (29) is located outside the cavity inside the device frame (1); an exhaust duct (13) and an air injection duct (14) are provided on one side outer wall of the device frame (1); the exhaust duct (13) and the air injection duct (14) are both connected to the interior of the heat-conducting cavity (29); A top connecting shaft (26) is welded to the upper end of the stirring shaft (30), the diameter of the top connecting shaft (26) is larger than the diameter of the internal through hole of the supporting shaft frame (32), and a linkage gear (11) is integrally formed on the outer wall of the top connecting shaft (26), and a transmission gear (12) is meshedly connected to one side of the linkage gear (11); A hollow carrier box (20) is arranged on the outer wall of the end of the gas injection conduit (14), and the hollow carrier box (20) is connected to the interior of the gas injection conduit (14). A bearing seat (33) is provided inside the hollow carrier box (20). A transmission impeller (34) is movably connected to the upper end of the bearing seat (33). An extension shaft (21) is integrally formed at the center position of the upper end of the transmission impeller (34). The extension shaft (21) and the hollow carrier box (20) are movably connected. A supporting plate (22) is welded to the upper end of the extension shaft (21). The transmission gear (12) is supported and connected to the extension shaft (21) through the supporting plate (22). A guide slideway (3) is provided on an outer wall of one side of the equipment frame (1), and a lead screw slider (28) is movably provided inside the guide slideway (3), an electric push rod (7) is fixed to the upper end of the lead screw slider (28) by screws, an extension block (8) is welded to the top position of the piston rod of the electric push rod (7), and a lifting carrier (9) is integrally formed on one side of the extension block (8).

2. A hydroxylation reaction device according to claim 1, characterized in that: A driving motor (10) is provided at the upper end of the lifting carrier (9), and a linkage shaft (24) is provided below the lifting carrier (9). The output shaft of the driving motor (10) passes through the lifting carrier (9) and is welded to the linkage shaft (24). A cross joint (27) is provided at the top of the top connecting shaft (26).

3. A hydroxylation reaction device according to claim 2, characterized in that: A cross plug (25) is welded on the lower end of the linkage shaft (24), and the linkage shaft (24) is connected to the cross connection groove (27) at the top of the top connection shaft (26) through the cross plug (25).

4. A hydroxylation reaction device according to claim 3, characterized in that: A vertical screw rod (15) is welded to the upper end of the supporting plate (22), the transmission gear (12) is sleeve-connected to the vertical screw rod (15), a clamping nut (16) is screwed and installed on the vertical screw rod (15), and the transmission gear (12) is limitedly connected to the vertical screw rod (15) through the clamping nut (16).

5. A hydroxylation reaction device according to claim 4, characterized in that: A threaded screw (5) is provided inside the guide slideway (3), and a screw slider (28) is movably connected to the guide slideway (3) through the threaded screw (5). A servo motor (4) is provided at one end of the guide slideway (3), and an output shaft of the servo motor (4) is transmission-connected to the threaded screw (5) through a coupling.

6. A hydroxylation reaction device according to claim 5, characterized in that: Guide rods (6) are provided on both sides of the threaded screw (5), the two guide rods (6) and the guide slideway (3) are an integrated structure, and the screw slider (28) is movably connected to the guide slideway (3) through the two guide rods (6).

7. A hydroxylation reaction device according to claim 6, characterized in that: The linkage gear (11) is integrally formed with a discharge port (23), which is located directly above the internal cavity of the equipment frame (1).

8. A hydroxylation reaction device according to claim 7, characterized in that: A discharge valve (18) is connected to the center of the bottom of the equipment frame (1), and a material guide pipe (19) is connected to the lower end of the discharge valve (18).

9. A hydroxylation reaction device according to claim 8, characterized in that: Two supporting frames (2) are welded on both side outer walls of the equipment frame (1), and a reinforcing connecting rod (17) is welded between two adjacent supporting frames (2).

10. The method for using the hydroxylation reaction equipment according to claim 9, characterized in that: The following steps are involved: Step 1: Pour the raw materials for the hydroxylation reaction into the internal cavity of the equipment frame (1) through the discharge port (23), and then inject high-temperature steam into the heat-conducting cavity (29) inside the equipment frame (1) through the gas injection pipe (14) by the steam generator to perform heat conduction treatment on the internal cavity of the equipment frame (1); Step 2: Then, the electric push rod (7) drives the lifting carrier (9) to move downward, so that the cross plug (25) is inserted into the inside of the cross joint (27), and then the driving motor (10) drives the top connecting shaft (26) to rotate, thereby driving the stirring shaft (30) to rotate, and the raw materials in the internal cavity of the equipment frame (1) are stirred by the internal rotating paddle (31), so that the raw materials undergo high-temperature hydroxylation reaction in the equipment frame (1); Step 3: exhausting the steam in the heat-conducting cavity (29) through the exhaust duct (13), wherein the temperature of the exhausted steam is lower than the temperature required for heating, and the exhausted steam is injected back into the steam generator for reheating, thereby saving steam consumption required for heating; Step 4: When high-temperature steam is injected, the transmission gear (12) is sleeved and installed on the vertical screw (15) as needed, and the lifting carrier (9) is lifted up by the electric push rod (7), so that the cross plug (25) is separated from the cross joint (27). At this time, steam is injected under high pressure and drives the transmission impeller (34) inside the hollow carrier box (20) to rotate when passing through the hollow carrier box (20), so that the transmission impeller (34) drives the transmission gear (12) to rotate. Step 5: The transmission gear (12) rotates to drive the linkage gear (11) meshed with it to rotate, and the stirring shaft (30) rotates synchronously, thereby driving the stirring shaft (30) to rotate and stir the raw materials inside the equipment frame (1) without the help of the drive motor (10); Step 6: Finally, open the discharge valve (18) to discharge the product after the hydroxylation reaction through the guide pipe (19), and drive the threaded screw (5) to rotate through the servo motor (4). With the help of the linkage of the screw slider (28), the drive motor (10) and the lifting carrier (9) are moved away from the top of the equipment frame (1) to facilitate the next discharge processing and heat dissipation inside the equipment frame (1).

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