Plasticizer esterification reaction equipment

By designing plasticizer esterification reaction equipment, using weighing and loading mechanism and automated control system, the problems of complex manual operation and low efficiency in the prior art are solved, efficient automation of the plasticizer preparation process is achieved, and product quality and production efficiency are improved.

CN119897026APending Publication Date: 2025-04-29TAIZHOU ZHENHENG MOULD CO LTD
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Patent Information

Application Number
CN202510249915.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2025-04-29

AI Technical Summary

Technical Problem

During the preparation of existing plasticizers and esterifying agents, due to manual weighing and loading, the operation is complicated and the labor is large, which reduces the production efficiency and may affect the quality of the product.

Method used

A plasticizer esterification reaction equipment is designed, using a weighing and loading mechanism and an automated control system. Through the coordination of solenoid valve, weighing instrument and push plate, the accurate loading and esterification reaction of raw materials is achieved, and manual intervention is avoided.

Benefits of technology

It improves the production efficiency and product quality of plasticizer preparation, reduces the cumbersomeness of manual operation, and ensures the accuracy of raw material ratio and the accuracy of feeding.

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Abstract

The invention discloses plasticizer esterification reaction equipment which comprises a base, supporting columns are symmetrically and fixedly connected to the upper side wall of the base, an esterification kettle is jointly installed at the top ends of the two supporting columns, a first motor is fixedly connected to the outer wall of the lower side of the esterification kettle, and a sleeve extending into the esterification kettle is fixedly connected to the driving end of the first motor. And a rotating shaft is inserted into the inner wall of the sleeve in a sliding manner. The discharging amount of raw materials, use of the weighing instrument and movement of the push plate are controlled through the electromagnetic valve, so that the raw materials are pushed into the esterification kettle, accurate raw material proportioning and feeding operation are completed, the quality of plasticizer preparation is guaranteed, the complexity of manual weighing and feeding is avoided, the production efficiency is effectively improved, and the production cost is reduced. And the movable hydraulic cylinder drives the plasticizer to move upwards through the first partition plate, and the operation table is used, so that workers can take out the produced plasticizer more conveniently.
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Description

Technical Field

[0001] The invention relates to the technical field of plasticizer production, in particular to a plasticizer esterification reaction device. Background Art

[0002] As we all know, plasticizers are substances added during the processing of rubber, plastic, coatings and other polymers to increase their plasticity, fluidity and make the finished products flexible. They are essential additives in the plastics industry.

[0003] In the existing preparation process of the esterifying agent, the raw materials are first weighed manually, and then the raw materials are put into the esterification kettle to prepare the plasticizer. Since the raw materials are weighed and loaded manually for multiple times, the complexity and labor of the operation are increased, thereby reducing the production efficiency. There is also the possibility of operational errors in manual weighing, which in turn affects the quality of the prepared plasticizer. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a plasticizer esterification reaction equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A plasticizer esterification reaction device, comprising a base, the upper side wall of the base is symmetrically fixedly connected with a support column, the tops of the two support columns are jointly installed with an esterification kettle, the lower outer wall of the esterification kettle is fixedly connected with a motor 1, the driving end of the motor 1 is fixedly connected with a sleeve extending into the esterification kettle, the inner wall of the sleeve is slidably inserted with a rotating shaft, the outer wall of the rotating shaft is fixedly sleeved with a partition 1 that is in rotational contact with the inner wall of the esterification kettle, the inner bottom wall of the esterification kettle is symmetrically fixedly connected with a hydraulic cylinder located outside the sleeve and below the partition 1, and the outer wall of the rotating shaft is symmetrically installed with a plurality of stirring cylinders located above the partition 1. A mixing rod, a cover plate is rotatably installed on the upper top wall of the esterification kettle, and an opening and closing driving mechanism is arranged on the upper side wall of the cover plate; a fixing rod located on the rear side of the esterification kettle is fixedly connected to the upper side wall of the base, a mounting plate is fixedly connected to the top end of the fixing rod, and a support rod is symmetrically fixedly connected to the upper side wall of the mounting plate, and a storage box is fixedly connected to the top ends of the two support rods, and a partition plate 2 is fixedly installed on the inner wall of the storage box, a weighing and feeding mechanism is arranged on the upper side wall of the mounting plate, a lifting platform device located on the right side of the esterification kettle is arranged on the upper side wall of the base, and a control panel is installed on the upper side wall of the left end of the base.

[0006] Preferably, the opening and closing drive mechanism includes a connecting rod fixedly connected to the upper side wall of the cover plate, the left outer wall of the esterification kettle is fixedly connected to the support plate, the upper side wall of the support plate is fixedly connected to an electric telescopic rod, the driving end of the electric telescopic rod is rotatably connected to a push-pull rod, and the top end of the push-pull rod is rotatably connected to the end of the connecting rod.

[0007] The lifting of the ...

[0008] Preferably, the lifting platform device includes a screw rod rotatably connected to the upper side wall of the base, the outer wall of the screw rod is fixedly sleeved with a pulley 1, the upper side wall of the base is fixedly connected with a motor 3 located on the right side of the screw rod, the driving end of the motor 3 is fixedly connected with a pulley 2, the outer walls of the pulley 1 and the pulley 2 are jointly sleeved with a belt, and the outer wall of the screw rod is threadedly connected with an operating table.

[0009] Preferably, the outer wall of the lower end of the rotating shaft is symmetrically fixedly connected with clamping rods, and the inner wall of the sleeve is symmetrically provided with clamping grooves matching with the two clamping rods.

[0010] Preferably, the upper side wall at the right end of the base is fixedly connected with a guide rod that passes through the top of the operating table, the top ends of the screw rod and the guide rod are fixedly connected with a limiting plate, the upper side wall of the base is fixedly embedded with a bearing, and the inner ring of the bearing and the outer wall of the screw rod are fixedly connected.

[0011] Preferably, a PLC controller is provided in the control panel, and the PLC controller, motor 1, motor 2, motor 3, electric telescopic rod, hydraulic cylinder and solenoid valve are all electrically connected.

[0012] Compared with the existing technology, the advantages of this plasticizer esterification reaction equipment are: 1. Set up a weighing feeder, an esterification kettle, a cover plate and an opening and closing drive mechanism, and control the start of the electric telescopic rod through the control panel. The driving end of the electric telescopic rod drives the push-pull rod to move downward, so that the push-pull rod drives the cover plate to rotate counterclockwise through the connecting rod to open the esterification kettle. Then, the opening of the solenoid valve is controlled by the control panel to make the raw materials in the storage box flow out quantitatively, and the accurate required amount of raw materials is measured by the weighing instrument, so as to ensure the quality of plasticizer preparation. After weighing, start the second motor, and the driving end of the second motor drives the cam to rotate. The longer end of the cam contacts the abutment plate, driving the abutment plate, the moving rod and the push plate to move forward. In the process of the push plate moving forward, the raw materials are pushed into the esterification kettle, thereby completing the accurate raw material ratio and feeding operation, avoiding the tediousness of manual weighing and feeding, and effectively improving the production efficiency; 2. Motor 1, esterification kettle, hydraulic cylinder, sleeve clamping slot, clamping rod, rotating shaft, stirring rod and lifting platform device are set. Raw materials are put into the esterification kettle, and motor 1 is started. The driving end of motor 1 drives the sleeve, rotating shaft and stirring rod to rotate, so that the stirring rod stirs the raw materials and fully mixes the raw materials, thereby improving the efficiency of plasticizer preparation. After the plasticizer is prepared, the hydraulic cylinder and motor 3 are started. The hydraulic cylinder drives the partition 1 to move upward, so that the clamping rod on the rotating shaft is separated from the sleeve, and at the same time drives the prepared plasticizer to move upward to the upper port of the esterification kettle. At the same time, the staff goes to the operating table, and motor 3 drives the pulley 2 to rotate clockwise, thereby driving the pulley 1 and the screw rod to rotate clockwise, thereby driving the operating table to move upward to the top of the esterification kettle, so that the staff can more conveniently take out the produced plasticizer; In summary, the present invention controls the discharge amount of raw materials, the use of a weighing instrument and the movement of a push plate through an electromagnetic valve, so that the raw materials are pushed into the esterification kettle, thereby completing accurate raw material proportioning and loading operations, ensuring the quality of plasticizer preparation, avoiding the tediousness of manual weighing and loading, and effectively improving production efficiency. The hydraulic cylinder drives the plasticizer to move upward through a partition and the use of an operating table makes it more convenient for staff to take out the produced plasticizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a plasticizer esterification reaction device proposed by the present invention; Figure 2 This is a three-dimensional diagram of the internal structure of an esterification kettle in a plasticizer esterification reaction device proposed by the present invention; Figure 3 It is a partially enlarged stereoscopic diagram of a plasticizer esterification reaction device proposed by the present invention; Figure 4 A three-dimensional diagram of the connection between the sleeve and the slot in a plasticizer esterification reaction device proposed by the present invention; Figure 5The present invention provides a stereoscopic view of the connection between a rotating shaft and a clamping rod in a plasticizer esterification reaction device.

[0014] In the figure: 1 base, 2 support column, 3 esterification kettle, 4 motor 1, 5 sleeve, 6 shaft, 7 partition 1, 8 stirring rod, 9 slot, 10 clamping rod, 11 cover plate, 12 connecting rod, 13 support plate, 14 electric telescopic rod, 15 push-pull rod, 16 fixed rod, 17 mounting plate, 18 support rod, 19 storage box, 20 feeding tube, 21 weighing instrument, 22 tray, 23 push plate, 24 vertical plate, 25 moving rod, 26 resisting plate, 27 spring, 28 motor 2, 29 cam, 30 screw rod, 31 pulley 1, 32 motor 3, 33 pulley 2, 34 operating table, 35 guide rod, 36 control panel. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0016] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] Reference Figure 1-5 A plasticizer esterification reaction device comprises a base 1, the upper side wall of the base 1 is symmetrically fixedly connected with a support column 2, the tops of the two support columns 2 are jointly installed with an esterification kettle 3, the lower side outer wall of the esterification kettle 3 is fixedly connected with a motor 4, the driving end of the motor 4 is fixedly connected with a sleeve 5 extending into the esterification kettle 3, the inner wall of the sleeve 5 is slidably inserted with a rotating shaft 6, the lower end outer wall of the rotating shaft 6 is symmetrically fixedly connected with a clamping rod 10, the inner wall of the sleeve 5 is symmetrically provided with a clamping groove 9 matching the two clamping rods 10, the outer wall of the rotating shaft 6 is fixedly sleeved with a partition 7 that is in rotational contact with the inner wall of the esterification kettle 3, the inner bottom wall of the esterification kettle 3 is symmetrically fixedly connected with a hydraulic cylinder located outside the sleeve 5 and below the partition 7, the outer wall of the rotating shaft 6 is symmetrically installed with a plurality of stirring rods 8 located above the partition 7, and the upper top wall of the esterification kettle 3 is rotatably installed with a cover plate 11; The upper side wall of the cover plate 11 is provided with an opening and closing driving mechanism, which includes a connecting rod 12 fixedly connected to the upper side wall of the cover plate 11, the left outer wall of the esterification kettle 3 is fixedly connected by a support plate 13, the upper side wall of the support plate 13 is fixedly connected with an electric telescopic rod 14, the driving end of the electric telescopic rod 14 is rotatably connected with a push-pull rod 15, the top of the push-pull rod 15 is rotatably connected to the end of the connecting rod 12, the upper side wall of the base 1 is fixedly connected with a fixing rod 16 located at the rear side of the esterification kettle 3, the top of the fixing rod 16 is fixedly connected with a mounting plate 17, the upper side wall of the mounting plate 17 is symmetrically fixedly connected with a supporting rod 18, the tops of the two supporting rods 18 are commonly fixedly connected with a storage box 19, the inner wall of the storage box 19 is fixedly installed with a partition plate 2, and the upper side wall of the mounting plate 17 is provided with a weighing and feeding mechanism; The weighing and feeding mechanism includes a weighing instrument 21 which is symmetrically fixedly connected to the upper side wall of the mounting plate 17 and is located at the front side of the storage box 19. The upper side walls of the two weighing instruments 21 are both installed with a tray 22 matching the esterification kettle 3. The inner walls of the trays 22 located on the same side are slidably connected with a push plate 23. The rear side walls of the push plates 23 located on the same side are fixedly connected with a moving rod 25 extending to the rear side of the tray 22. The upper side wall of the mounting plate 17 is symmetrically fixedly connected with a vertical plate 24 which is slidably sleeved on the outer walls of the two moving rods 25. The rear ends of the two moving rods 25 are fixed together. A stop plate 26 located below the material storage box 19 is fixedly connected, and a spring 27 slidably sleeved on the outer wall of the moving rod 25 is fixedly connected between the vertical plate 24 and the stop plate 26 located on the same side. A motor 28 located at the rear side of the stop plate 26 is fixedly connected to the upper side wall of the mounting plate 17, and a cam 29 abutting against the rear side of the stop plate 26 is fixedly connected to the driving end of the motor 28. A feed pipe 20 matching the two trays 22 and located in front of the push plate 23 is fixedly inserted on the front side wall of the material storage box 19, and the outer walls of the two feed pipes 20 are provided with solenoid valves; The start of the electric telescopic rod 14 is controlled by the control panel 36, and the driving end of the electric telescopic rod 14 drives the push-pull rod 15 to move downward, so that the push-pull rod 15 drives the cover plate 11 to rotate counterclockwise through the connecting rod 12, so that the esterification kettle 3 is opened, and then the opening of the solenoid valve is controlled by the control panel 36, so that the raw materials in the storage box 19 flow out quantitatively, and the accurate required amount of raw materials is measured by the weighing instrument 21, so as to ensure the quality of the plasticizer preparation. After weighing, the motor 28 is started, and the driving end of the motor 28 drives the cam 29 to rotate. The longer end of the cam 29 contacts the abutment plate 26, driving the abutment plate 26, the moving rod 25 and the push plate 23 to move forward. In the process of the push plate 23 moving forward, the raw materials are pushed into the esterification kettle 3, thereby completing the accurate raw material ratio and feeding operation, avoiding the tediousness of manual weighing and feeding, and effectively improving the production efficiency; The upper side wall of the base 1 is provided with a lifting platform device located on the right side of the esterification kettle 3, and the lifting platform device includes a screw rod 30 rotatably connected to the upper side wall of the base 1, and the outer wall of the screw rod 30 is fixedly sleeved with a pulley 1 31, and the upper side wall of the base 1 is fixedly connected to a motor 32 located on the right side of the screw rod 30, and the driving end of the motor 32 is fixedly connected to a pulley 2 33, and the outer walls of the pulley 1 31 and the pulley 2 33 are jointly sleeved with a belt, and the outer wall of the screw rod 30 is threadedly connected to an operating table 34, and the right side of the base 1 The upper side wall is fixedly connected with a guide rod 35 that penetrates to the top of the operating table 34. The tops of the screw rod 30 and the guide rod 35 are fixedly connected with the limit plate. The upper side wall of the base 1 is fixedly embedded with a bearing. The inner ring of the bearing and the outer wall of the screw rod 30 are fixedly connected. A control panel 36 is installed on the upper side wall of the left end of the base 1. A PLC controller is arranged in the control panel 36. The PLC controller, motor 1 4, motor 2 28, motor 3 32, electric telescopic rod 14, hydraulic cylinder and solenoid valve are all electrically connected. The raw materials are put into the esterification kettle 3, and the motor 4 is started. The driving end of the motor 4 drives the sleeve 5, the rotating shaft 6 and the stirring rod 8 to rotate, so that the stirring rod 8 stirs the raw materials and makes the raw materials fully mixed, thereby improving the efficiency of plasticizer preparation. After the plasticizer is prepared, the hydraulic cylinder and the motor 3 32 are started, and the hydraulic cylinder 32 drives the partition 7 to move upward, so that the clamping rod 10 on the rotating shaft 6 is separated from the sleeve 5, and at the same time drives the prepared plasticizer to move upward to the upper port of the esterification kettle 3. At the same time, the staff goes to the operating table 34, and the motor 3 32 drives the pulley 2 33 to rotate clockwise, thereby driving the pulley 1 31 and the screw 30 to rotate clockwise, thereby driving the operating table 34 to move upward to the top of the esterification kettle 3, so that the staff can more conveniently take out the produced plasticizer.

[0018] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0019] The operating principle of the present invention is now described as follows: When in use, the start of the electric telescopic rod 14 is controlled by the control panel 36, and the driving end of the electric telescopic rod 14 drives the push-pull rod 15 to move downward, so that the push-pull rod 15 drives the cover plate 11 to rotate counterclockwise through the connecting rod 12, so that the esterification kettle 3 is opened, and then the opening of the solenoid valve is controlled by the control panel 36, so that the raw materials in the storage box 19 flow out quantitatively, and the accurate required amount of raw materials is measured by the weighing instrument 21, so as to ensure the quality of the plasticizer preparation. After weighing, the motor 28 is started, and the driving end of the motor 28 drives the cam 29 to rotate. The longer end of the cam 29 contacts the abutment plate 26, driving the abutment plate 26, the moving rod 25 and the push plate 23 to move forward. In the process of the push plate 23 moving forward, the raw materials are pushed into the esterification kettle 3, thereby completing the accurate raw material ratio and feeding operation, avoiding the tediousness of manual weighing and feeding, and effectively improving the production efficiency; The raw materials are put into the esterification kettle 3, and the motor 4 is started. The driving end of the motor 4 drives the sleeve 5, the rotating shaft 6 and the stirring rod 8 to rotate, so that the stirring rod 8 stirs the raw materials and makes the raw materials fully mixed, thereby improving the efficiency of plasticizer preparation. After the plasticizer is prepared, the hydraulic cylinder and the motor 3 32 are started, and the hydraulic cylinder 32 drives the partition 7 to move upward, so that the clamping rod 10 on the rotating shaft 6 is separated from the sleeve 5, and at the same time drives the prepared plasticizer to move upward to the upper port of the esterification kettle 3. At the same time, the staff goes to the operating table 34, and the motor 3 32 drives the pulley 2 33 to rotate clockwise, thereby driving the pulley 1 31 and the screw 30 to rotate clockwise, thereby driving the operating table 34 to move upward to the top of the esterification kettle 3, so that the staff can more conveniently take out the produced plasticizer.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plasticizer esterification reaction device, comprising a base (1), characterized in that: The upper side wall of the base (1) is symmetrically fixedly connected to a support column (2), the top ends of the two support columns (2) are jointly mounted with an esterification kettle (3), the lower outer wall of the esterification kettle (3) is fixedly connected to a motor 1 (4), the driving end of the motor 1 (4) is fixedly connected to a sleeve (5) extending into the esterification kettle (3), the inner wall of the sleeve (5) is slidably inserted with a rotating shaft (6), the outer wall of the rotating shaft (6) is fixedly sleeved with a partition 1 (7) that is in rotational contact with the inner wall of the esterification kettle (3), the inner bottom wall of the esterification kettle (3) is symmetrically fixedly connected to a hydraulic cylinder located outside the sleeve (5) and below the partition 1 (7), the outer wall of the rotating shaft (6) is symmetrically mounted with a plurality of stirring rods (8) located above the partition 1 (7 ... inner bottom wall of the esterification kettle (3) is symmetrically mounted with a plurality of stirring rods (8) located above the partition 1 (7), the inner bottom wall of the esterification kettle (3) is symmetrically mounted with a plurality of stirring rods (8) located above the partition 1 (7), the inner bottom wall of the A cover plate (11) is rotatably mounted on the upper top wall, an opening and closing driving mechanism is arranged on the upper side wall of the cover plate (11), a fixing rod (16) located at the rear side of the esterification kettle (3) is fixedly connected to the upper side wall of the base (1), a mounting plate (17) is fixedly connected to the top end of the fixing rod (16), a supporting rod (18) is symmetrically fixedly connected to the upper side wall of the mounting plate (17), a material storage box (19) is fixedly connected to the top ends of the two supporting rods (18), a partition plate 2 is fixedly mounted on the inner wall of the material storage box (19), a weighing and feeding mechanism is arranged on the upper side wall of the mounting plate (17), a lifting platform device located on the right side of the esterification kettle (3) is arranged on the upper side wall of the base (1), and a control panel (36) is installed on the upper side wall at the left end of the base (1).

2. A plasticizer esterification reaction equipment according to claim 1, characterized in that: The opening and closing driving mechanism comprises a connecting rod (12) fixedly connected to the upper side wall of the cover plate (11); the left outer wall of the esterification kettle (3) is fixedly connected to a support plate (13); the upper side wall of the support plate (13) is fixedly connected to an electric telescopic rod (14); the driving end of the electric telescopic rod (14) is rotatably connected to a push-pull rod (15); and the top end of the push-pull rod (15) is rotatably connected to the end of the connecting rod (12).

3. A plasticizer esterification reaction equipment according to claim 2, characterized in that: The weighing and feeding mechanism comprises a weighing instrument (21) symmetrically fixedly connected to the upper side wall of the mounting plate (17) and located at the front side of the material storage box (19); the upper side walls of the two weighing instruments (21) are both installed with a tray (22) matching the esterification kettle (3); the inner walls of the trays (22) located on the same side are both slidably connected with a push plate (23); the rear side walls of the push plates (23) located on the same side are both fixedly connected with a moving rod (25) extending to the rear side of the tray (22); the upper side wall of the mounting plate (17) is symmetrically fixedly connected with a vertical plate (24) slidably sleeved on the outer walls of the two moving rods (25); the rear ends of the two moving rods (25) are fixed together A backing plate (26) located below the material storage box (19) is connected, and a spring (27) slidably mounted on the outer wall of the moving rod (25) is fixedly connected between the vertical plate (24) and the backing plate (26) located on the same side. A second motor (28) located at the rear side of the backing plate (26) is fixedly connected to the upper side wall of the mounting plate (17), and a cam (29) abutting against the rear side of the backing plate (26) is fixedly connected to the driving end of the second motor (28). A feed pipe (20) matching the two trays (22) and located at the front side of the push plate (23) is fixedly inserted into the front side wall of the material storage box (19), and the outer walls of the two feed pipes (20) are both provided with solenoid valves.

4. A plasticizer esterification reaction equipment according to claim 3, characterized in that: The lifting platform device comprises a screw rod (30) rotatably connected to the upper side wall of the base (1); the outer wall of the screw rod (30) is fixedly sleeved with a pulley 1 (31); the upper side wall of the base (1) is fixedly connected with a motor 3 (32) located on the right side of the screw rod (30); the driving end of the motor 3 (32) is fixedly connected with a pulley 2 (33); the outer walls of the pulley 1 (31) and the pulley 2 (33) are jointly sleeved with a belt; and the outer wall of the screw rod (30) is threadedly connected with an operating table (34).

5. A plasticizer esterification reaction equipment according to claim 1, characterized in that: The outer wall of the lower end of the rotating shaft (6) is symmetrically fixedly connected with a clamping rod (10), and the inner wall of the sleeve (5) is symmetrically provided with clamping grooves (9) matching the two clamping rods (10).

6. A plasticizer esterification reaction equipment according to claim 4, characterized in that: A guide rod (35) extending through the top of the operating table (34) is fixedly connected to the upper side wall of the right end of the base (1); the top ends of the screw rod (30) and the guide rod (35) are fixedly connected to a limit plate; a bearing is fixedly embedded in the upper side wall of the base (1); the inner ring of the bearing is fixedly connected to the outer wall of the screw rod (30).

7. A plasticizer esterification reaction equipment according to claim 4, characterized in that: A PLC controller is provided in the control panel (36); the PLC controller, motor 1 (4), motor 2 (28), motor 3 (32), the electric telescopic rod (14), the hydraulic cylinder and the solenoid valve are all electrically connected.