Industrial production system of industrial grade glyceryl triacetate

Abstract

The invention relates to the technical field of glyceryl triacetate, in particular to an industrial glyceryl triacetate industrial production system which comprises a control table, a reaction kettle is fixedly connected to the top of the control table, an air exhaust mechanism is fixedly connected to the rear side of the outer wall of the reaction kettle, and a gas collecting mechanism is arranged at the top of the air exhaust mechanism. By arranging the air exhaust mechanism and the gas collection mechanism, the air pressure in the reaction kettle is effectively adjusted, the actual requirements of industrial production are fully considered in the whole design of the air exhaust mechanism and the gas collection mechanism, and meanwhile, in the whole process, by accurately controlling the rotating speed and the rotating direction of the double-shaft motor, the gas collection efficiency is greatly improved. According to the reaction kettle, the gas pressure in the reaction kettle can be finely adjusted, so that the stability and the controllability of the production process are ensured, the gas collecting mechanism effectively avoids environmental pollution and potential safety hazards possibly caused by gas leakage through the unique design, and the safety and the environmental protection property of the whole production system are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of glyceryl triacetate, and more specifically, to an industrialized production system for industrial-grade glyceryl triacetate. Background Art

[0002] Glyceryl triacetate refers to an important organic compound, which is widely used in industries such as food, medicine, cosmetics, and plastics. In the food industry, glyceryl triacetate is commonly used as an emulsifier, stabilizer, and antioxidant, which can improve the taste of food and extend its shelf life. In the pharmaceutical industry, it is used as a pharmaceutical excipient, which helps with the dissolution and stability of drugs and improves the bioavailability of drugs. In addition, in the cosmetics field, glyceryl triacetate is widely used in various skin care products and makeup products due to its good moisturizing performance and skin permeability. In the plastics industry, glyceryl triacetate is used as a plasticizer, which can improve the flexibility and processing performance of plastics.

[0003] According to an esterification reaction tower for the production of glyceryl triacetate disclosed in the patent document CN111298725B, it includes a tower body, a reboiler, a gas distribution plate, a first condenser, a pervaporation membrane separator, a second condenser, a buffer tank, a reflux channel, a rack mechanism, a mesh cylinder, and a reduction motor. At the top of the tower, the gas-phase azeotrope of the water and the entrainer generated by the reaction is quickly and efficiently dehydrated, and the removed water is centrally recovered in the buffer tank. The recovered entrainer can be sent back into the tower as needed or discharged, with flexible use. The activated carbon in the catalyst in the material can be directly intercepted in the mesh cylinder, reducing the filtration difficulty in the subsequent process. At the same time, the mesh cylinder can reciprocate up and down in the tower and rotate continuously. On the one hand, it plays a role in stirring the liquid material, and on the other hand, it disperses the activated carbon, which is beneficial to the progress of the reaction. The feeding door of the mesh cylinder, in cooperation with the return spring, the upper pressing head, and the lower pressing head, can realize the functions of automatic feeding, cleaning, and discharging, with the advantages of convenient operation and easy maintenance.

[0004] In the process of preparing glyceryl triacetate, glycerol, acetic acid, and sulfuric acid are usually used as catalysts. Glycerol and acetic acid are added to the reactor in a certain proportion, and the required sulfuric acid catalyst is added. Then, the reactants are stirred and heated to 70 - 80 degrees Celsius for the esterification reaction. However, during the reaction, the internal pressure of the reactor may become too high due to the excessive internal temperature, which may lead to damage to the structure of the reactor and even cause safety accidents. The traditional pressure relief method is often achieved by setting a safety valve, but this method not only causes waste of raw materials and heat but also may pose a greater safety hazard due to untimely pressure relief. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides an industrialized production system for glycerol triacetate, which solves the problem that during the reaction process of the reactor, the internal pressure of the reactor may become too high due to excessive internal temperature, which may damage the structure of the reactor and even cause safety accidents. The traditional pressure relief method often realizes it by setting a safety valve, but this method not only causes waste of raw materials and heat, but also may cause greater safety hazards due to untimely pressure relief.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An industrialized production system for glycerol triacetate, including a console, a reaction kettle is fixedly connected to the top of the console, an air extraction mechanism is fixedly connected to the rear side of the outer wall of the reaction kettle, and a gas collection mechanism is arranged on the top of the air extraction mechanism;

[0008] The air extraction mechanism includes a connecting plate, irregular connecting plates are respectively fixedly connected to the left and right sides of the connecting plate, bottom connecting plates are fixedly connected to the bottoms of the two irregular connecting plates, the front sides of the two bottom connecting plates are fixedly connected to the rear side of the outer wall of the reaction kettle, air extraction pipes are fixedly connected to the inner sides of the two irregular connecting plates, the front sides of the two air extraction pipes extend into the inner wall of the reaction kettle, and an extraction control component is fixedly connected to the top of the connecting plate;

[0009] The extraction control component includes two control pipe connecting plates, control pipe connection blocks are fixedly connected to the front and rear sides of the middle parts of the tops of the two control pipe connecting plates, and control pipes are fixedly connected to the tops of the two groups of control pipe connection blocks.

[0010] As a further solution of the present invention: pipes are fixedly connected to the middle parts of the bottoms of the two control pipes, and the ends of the two pipes away from the control pipes extend into the inner walls of the air extraction pipes.

[0011] As a further solution of the present invention: guide rail vertical rods are fixedly connected to the middle parts of the rear sides of the tops of the two control pipe connecting plates, two rotating rod connecting rods are fixedly connected to the left and right sides of the front sides of the tops of the two control pipe connecting plates, rotating rods are rotatably connected to the inner walls of the multiple groups of rotating rod connecting rods, the inner ends of the multiple groups of rotating rods extend to the inner sides of the multiple groups of rotating rod connecting rods and are fixedly connected with rotating rods, push rod connecting disks are rotatably connected to the sides of the inner sides of the multiple groups of rotating rods away from the rotating rods, push rods are fixedly connected to the rear sides of the outer walls of the multiple push rod connecting disks, the rear sides of the left and right groups of push rods extend to the rear sides of the control pipes and are rotatably connected with a horizontal connecting rod inside, and side connecting plates are fixedly connected to the rear sides of the outer sides of the two control pipe connecting plates.

[0012] As a further solution of the present invention: second rotating rods are fixedly connected to the inner ends of the two groups of rotating rods in the middle. Second push rod connecting discs are rotatably connected to the sides of the inner sides of the two groups of second rotating rods away from the rotating rods. Third push rods are fixedly connected to the rear sides of the outer walls of the two second push rod connecting discs. Pistons are rotatably connected to the inner walls of the rear sides of the two third push rods. The outer walls of the two pistons are respectively slidably connected to the inner walls of the two control pipes.

[0013] As a further solution of the present invention: a double-shaft motor is fixedly connected to the inner ends of the two inner rotating rods. The inner ends of the two inner rotating rods are respectively fixedly connected to the left and right output ends of the double-shaft motor. A double-shaft motor placement block is fixedly connected to the bottom of the double-shaft motor. The bottom of the double-shaft motor placement block is fixedly connected to the middle of the front side of the connecting plate.

[0014] As a further solution of the present invention: second push rods are rotatably connected to the middle parts of the outer walls of the two cross connecting rods. The front sides of the two second push rods extend into the inner walls of the two control pipes and are respectively rotatably connected to second pistons. The outer walls of the two second pistons are respectively slidably connected to the inner walls of the two control pipes. Push plate connecting rods are fixedly connected to the left and right sides of the rear sides of the outer walls of the two cross connecting rods. Push plates are fixedly connected to the rear ends of the two groups of push plate connecting rods. Columnar push rods are fixedly connected to the middle parts of the rear sides of the two push plates. The rear sides of the two columnar push rods extend to the rear sides of the guide rail vertical rods and are respectively fixedly connected to push vertical plates. The bottoms of the two push vertical plates extend to the bottoms of the control pipe connecting plates and the front sides are respectively fixedly connected to third piston push rods. The front ends of the two third piston push rods extend into the inner walls of the two air extraction pipes and are respectively fixedly connected to third pistons.

[0015] As a further solution of the present invention: the gas collection mechanism includes a gas storage chamber. Hinge blocks are fixedly connected to the tops of the left and right sides of the gas storage chamber. Columnar cross bars are fixedly connected to the tops of the inner sides of the two hinge blocks. Slide groove plates are fixedly connected to the rear sides of the two hinge blocks. Connecting vertical rods are fixedly connected to the bottoms of the two hinge blocks.

[0016] As a further solution of the present invention: the outer wall of the gas storage chamber is fixedly connected to the inner sides of the two side connecting plates. Gas storage chamber air extraction pipes are respectively fixedly connected to the left and right sides of the bottom of the gas storage chamber. The ends of the two gas storage chamber air extraction pipes away from the gas storage chamber respectively extend into the inner walls of the two control pipes. The inner sides of the two connecting vertical rods are respectively fixedly connected to the outer sides of the two side connecting plates. An air delivery pipe is fixedly connected to the front side of the gas storage chamber. The end of the air delivery pipe away from the gas storage chamber extends into the inner wall of the reaction kettle.

[0017] As a further solution of the present invention: Irregular triangular rotating plates are rotatably connected to the outer walls of the two columnar cross bars. An air extraction plate is fixedly connected to the front sides of the two irregular triangular rotating plates. Bidirectional hinge blocks are rotatably connected to the tops of the rear sides of the outer walls of the two irregular triangular rotating plates. Control vertical rods are rotatably connected to the sides of the two bidirectional hinge blocks away from the irregular triangular rotating plates. The outer walls of the two control vertical rods are respectively slidably connected to the inner walls of the two chute plates.

[0018] As a further solution of the present invention: Push-pull rotating rods are rotatably connected to the sides of the two control vertical rods away from the bidirectional hinge blocks. Connecting blocks are rotatably connected to the sides of the two push-pull rotating rods away from the control vertical rods. The rear sides of the two connecting blocks are respectively fixedly connected to the middle parts of the front sides of the two push-pull vertical plates. An air extraction plate air pipe is fixedly connected to the rear side of the air extraction plate. The side of the air extraction plate air pipe away from the air extraction plate is fixedly connected to the rear side of the air storage chamber.

[0019] The beneficial effects of the present invention are as follows:

[0020] By setting an air extraction mechanism and a gas collection mechanism, the present invention realizes the effective regulation of the internal air pressure of the reaction kettle. The designs of the entire air extraction mechanism and gas collection mechanism fully consider the actual needs of industrial production. At the same time, during the whole process, by precisely controlling the rotation speed and direction of the double-shaft motor, the fine regulation of the internal air pressure of the reaction kettle can be realized, thereby ensuring the stability and controllability of the production process. The gas collection mechanism, through its unique design, effectively avoids the environmental pollution and safety hazards that may be brought by gas leakage, further improving the safety and environmental protection of the entire production system. Specifically, when the air pressure in the reaction kettle is too high, the double-shaft motor is started. Through a series of mechanical movements, including the interaction of the rotating rod, push-pull rod, connecting disk and piston, the internal air is pumped out and discharged into the air storage chamber through the pipeline to realize air pressure regulation. By precisely controlling the motor, the air pressure can be finely regulated to meet the production requirements. At the same time, the movement of the push-pull vertical plate drives other components to rotate, collecting the pressure relief gas at the top to avoid environmental pollution. The microporous structure on the surface of the air extraction plate can efficiently adsorb gas molecules to ensure that the gas is completely collected. If the inner wall temperature is insufficient, heating gas is provided through the air pipe to keep the temperature stable. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the main body of the present invention;

[0022] Figure 2 It is a rear three-dimensional structure schematic diagram of the main body of the present invention;

[0023] Figure 3 It is a three-dimensional structure schematic diagram of the air extraction mechanism and gas collection mechanism of the present invention;

[0024] Figure 4 Schematic diagram of the three-dimensional separation structure of the air extraction mechanism and the gas collection mechanism of the present invention;

[0025] Figure 5 Schematic diagram of the three-dimensional structure of the air extraction mechanism of the present invention;

[0026] Figure 6 Schematic diagram of the three-dimensional separation structure of the air extraction mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the three-dimensional sectional structure of the air extraction control component of the present invention;

[0028] Figure 8 Schematic diagram of the enlarged structure at position A of the present invention;

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the gas collection mechanism of the present invention;

[0030] Figure 10 Schematic diagram of the three-dimensional separation structure of the gas collection mechanism of the present invention.

[0031] In the figure: 1, control console; 2, reaction kettle; 3, air extraction mechanism; 31, connecting plate; 32, irregular connecting plate; 33, bottom connecting plate; 34, air extraction pipe; 35, extraction control component; 351, control pipe connecting plate; 352, control pipe connecting block; 353, control pipe; 354, guide rail vertical rod; 355, rotating rod connecting rod; 356, rotating rod; 357, rotating rod; 358, push-pull rod connecting disk; 359, push-pull rod; 3510, piston; 3511, horizontal connecting rod; 3512, push-pull disk connecting rod; 3513, push-pull disk; 3514, second push-pull rod; 3515, second piston; 3516, columnar push-pull rod; 3517, push-pull vertical plate; 3518, third piston push-pull rod; 3519, third piston; 3520, pipeline; 3521, second rotating rod; 3522, second push-pull rod connecting disk; 3523, double-shaft motor; 3524, double-shaft motor placement block; 3525, side connecting plate; 3526, third push-pull rod; 4, gas collection mechanism; 41, gas storage bin; 42, hinge block; 43, columnar cross bar; 44, chute plate; 45, gas transmission pipe; 46, connecting vertical rod; 47, irregular triangular rotating plate; 48, bidirectional hinge block; 49, control vertical rod; 410, push-pull rotating rod; 411, connecting block; 412, air extraction plate; 413, air extraction plate gas transmission pipe; 414, gas storage bin air extraction pipe. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figure 1-2 shown, the present invention provides an industrialized production system for glycerol triacetate, including a console 1. A reaction kettle 2 is fixedly connected to the top of the console 1. An air extraction mechanism 3 is fixedly connected to the rear side of the outer wall of the reaction kettle 2. A gas collection mechanism 4 is arranged at the top of the air extraction mechanism 3.

[0034] As Figure 2-10As shown, the air extraction mechanism 3 includes a connecting plate 31. Irregular connecting plates 32 are fixedly connected to the left and right sides of the connecting plate 31 respectively. Bottom connecting plates 33 are fixedly connected to the bottoms of the two irregular connecting plates 32. The front sides of the two bottom connecting plates 33 are fixedly connected to the rear side of the outer wall of the reaction kettle 2. Air extraction pipes 34 are fixedly connected to the inner sides of the two irregular connecting plates 32. The front sides of the two air extraction pipes 34 extend to the inner wall of the reaction kettle 2. An extraction control component 35 is fixedly connected to the top of the connecting plate 31. The extraction control component 35 includes two control pipe connecting plates 351. Control pipe connection blocks 352 are fixedly connected to the front and rear sides of the middle parts of the tops of the two control pipe connecting plates 351. Control pipes 353 are fixedly connected to the tops of the two groups of control pipe connection blocks 352. Pipes 3520 are fixedly connected to the middle parts of the bottoms of the two control pipes 353. One end of each of the two pipes 3520 away from the control pipe 353 extends to the inner wall of the air extraction pipe 34. Guide rail vertical rods 354 are fixedly connected to the middle parts of the rear sides of the tops of the two control pipe connecting plates 351. Two rotating rod connecting rods 355 are fixedly connected to the left and right sides of the front sides of the tops of the two control pipe connecting plates 351. Rotating rods 356 are rotatably connected to the inner walls of the multiple groups of rotating rod connecting rods 355. The inner ends of the multiple groups of rotating rods 356 extend to the inner sides of the multiple groups of rotating rod connecting rods 355 and are fixedly connected to rotating rods 357. Push-pull rod connection discs 358 are rotatably connected to the sides of the multiple groups of rotating rods 357 away from the rotating rods 356. Push-pull rods 359 are fixedly connected to the rear sides of the outer walls of the multiple push-pull rod connection discs 358. The rear sides of the left and right groups of push-pull rods 359 extend to the rear sides of the control pipe 353 and are rotatably connected to a horizontal connecting rod 3511 inside. Side connecting plates 3525 are fixedly connected to the rear sides of the outsides of the two control pipe connecting plates 351. Second rotating rods 3521 are fixedly connected to the inner ends of the middle two groups of rotating rods 356. Second push-pull rod connection discs 3522 are rotatably connected to the sides of the two second rotating rods 3521 away from the rotating rods 356. Third push-pull rods 3526 are fixedly connected to the rear sides of the outer walls of the two second push-pull rod connection discs 3522. Pistons 3510 are rotatably connected to the inner walls of the rear sides of the two third push-pull rods 3526. The outer walls of the two pistons 3510 are respectively slidably connected to the inner walls of the two control pipes 353. A double-shaft motor 3523 is fixedly connected to the inner ends of the inner two rotating rods 356. The inner ends of the inner two rotating rods 356 are respectively fixedly connected to the left and right output ends of the double-shaft motor 3523. A double-shaft motor placement block 3524 is fixedly connected to the bottom of the double-shaft motor 3523. The bottom of the double-shaft motor placement block 3524 is fixedly connected to the middle part of the front side of the top of the connecting plate 31. Second push-pull rods 3514 are rotatably connected to the middle parts of the outer walls of the two horizontal connecting rods 3511. The front sides of the two second push-pull rods 3514 extend to the inner wall of the control pipe 353 and are rotatably connected to second pistons 3515. The outer walls of the two second pistons 3515 are respectively slidably connected to the inner walls of the two control pipes 353.On the left and right sides of the rear sides of the outer walls of the two horizontal connecting rods 3511, push-pull disc connecting rods 3512 are fixedly connected. The rear ends of the two groups of push-pull disc connecting rods 3512 are fixedly connected with push-pull discs 3513. In the middle of the rear sides of the two push-pull discs 3513, columnar push rods 3516 are fixedly connected. The rear sides of the two columnar push rods 3516 extend to the rear sides of the guide rail vertical rods 354 and are fixedly connected with push-pull vertical plates 3517. The bottoms of the two push-pull vertical plates 3517 extend to the bottoms of the control pipe connecting plates 351, and the front sides are fixedly connected with third piston push rods 3518. The front ends of the two third piston push rods 3518 extend into the inner walls of the two air extraction pipes 34 and are fixedly connected with third pistons 3519. The gas collection mechanism 4 includes an air storage chamber 41. On the top of the left and right sides of the air storage chamber 41, hinge blocks 42 are fixedly connected. On the top of the inner sides of the two hinge blocks 42, columnar cross rods 43 are fixedly connected. On the rear sides of the two hinge blocks 42, chute plates 44 are fixedly connected. On the bottoms of the two hinge blocks 42, connecting vertical rods 46 are fixedly connected. The outer wall of the air storage chamber 41 is fixedly connected to the inner sides of the two side connecting plates 3525. On the left and right sides of the bottom of the air storage chamber 41, air storage chamber air extraction pipes 414 are respectively fixedly connected. The ends of the two air storage chamber air extraction pipes 414 away from the air storage chamber 41 respectively extend into the inner walls of the two control pipes 353. The inner sides of the two connecting vertical rods 46 are respectively fixedly connected to the outer sides of the two side connecting plates 3525. A gas transmission pipe 45 is fixedly connected to the front side of the air storage chamber 41. The end of the gas transmission pipe 45 away from the air storage chamber 41 extends into the inner wall of the reaction kettle 2. Irregular triangular rotating plates 47 are rotatably connected to the outer walls of the two columnar cross rods 43. An air extraction plate 412 is fixedly connected to the front sides of the two irregular triangular rotating plates 47. On the top of the rear sides of the outer walls of the two irregular triangular rotating plates 47, double-directional hinge blocks 48 are rotatably connected. On the side of the inner sides of the two double-directional hinge blocks 48 away from the irregular triangular rotating plates 47, control vertical rods 49 are rotatably connected. The outer walls of the two control vertical rods 49 are respectively slidably connected to the inner walls of the two chute plates 44. On the side of the outer sides of the two control vertical rods 49 away from the double-directional hinge blocks 48, push-pull rotating rods 410 are rotatably connected. On the side of the inner sides of the two push-pull rotating rods 410 away from the control vertical rods 49, connecting blocks 411 are rotatably connected. The rear sides of the two connecting blocks 411 are respectively fixedly connected to the middle parts of the front sides of the two push-pull vertical plates 3517. An air extraction plate air transmission pipe 413 is fixedly connected to the rear side of the air extraction plate 412. The side of the air extraction plate air transmission pipe 413 away from the air extraction plate 412 is fixedly connected to the rear side of the air storage chamber 41;

[0035] When the air pressure generated by heating on the inner wall of the reaction kettle 2 is too high, the double-shaft motor 3523 is started at this time. The double-shaft motor 3523 drives the rotating rods 356 on the left and right sides to rotate. The rotating rods 356 drive the rotating rods 357 to rotate. The rotating rods 357 drive the push-pull rod connecting disc 358 to rotate. The push-pull rod connecting disc 358 drives the push-pull rod 359 to move. The push-pull rod 359 drives the cross connecting rod 3511 to move. The cross connecting rod 3511 drives the second push-pull rod 3514 to move. The second push-pull rod 3514 drives the second piston 3515 to reciprocate and slide on the inner wall of the control pipe 353. At the same time, the rotating rod 356 drives the second rotating rod 3521 to rotate. The second rotating rod 3521 drives the second push-pull rod connecting disc 3522 to rotate. The second push-pull rod connecting disc 3522 drives the third push-pull rod 3526 to move. The third push-pull rod 3526 drives the piston 3510 to reciprocate and slide on the inner wall of the control pipe 353. The reciprocating movement of the piston 3510 and the second piston 3515 can pump and compress the air inside the control pipe 353;

[0036] The reciprocating movement of the second piston 3515 simultaneously drives the two push-pull disc connecting rods 3512 to push the push-pull disc 3513, the columnar push-pull rod 3516 and the push-pull vertical plate 3517 to reciprocate, thereby driving the third piston push-pull rod 3518 to push the third piston 3519 to reciprocate inside the air extraction pipe 34, so as to extract the excessive air pressure inside the reaction kettle 2 through the air extraction pipe 34. And as the piston 3510 and the second piston 3515 reciprocate on the inner wall of the control pipe 353, the extracted air is discharged into the control pipe 353 through the pipeline 3520, and then the gas on the inner wall of the control pipe 353 is discharged into the inner wall of the air storage bin 41 through the air storage bin air extraction pipe 414 for storage, thus realizing the effective regulation of the air pressure inside the reaction kettle. At the same time, during the whole process, by precisely controlling the rotation speed and direction of the double-shaft motor 3523, the fine regulation of the air pressure inside the reaction kettle 2 can be realized, so as to meet different requirements during the industrial production of glycerol triacetate;

[0037] At the same time, when the two push-pull vertical plates 3517 reciprocate back and forth, they will drive the connecting block 411 to move. The connecting block 411 drives the push-pull rotating rod 410 to rotate. The push-pull rotating rod 410 drives the control vertical rod 49 to slide inside the chute plate 44. The control vertical rod 49 drives the double hinge block 48 to move. The double hinge block 48 drives the irregular triangular rotating plate 47 to rotate around the columnar cross bar 43 as the center. The irregular triangular rotating plate 47 drives the air extraction plate 412 to rotate. During the arc-shaped rotation of the air extraction plate 412, the gas leaked from the pressure relief at the top of the reaction kettle can be effectively collected, avoiding environmental pollution or safety hazards caused by gas leakage. During the rotation of the air extraction plate 412, its surface is designed with a microporous structure, and these micropores can efficiently capture and adsorb gas molecules to ensure that the gas is completely collected;

[0038] In addition, an air delivery pipe 45 is provided on the front side of the air storage chamber 41. When the inner wall temperature of the reaction kettle 2 is insufficient, the gas is discharged through the air delivery pipe 45 to provide the necessary heating gas for the reaction kettle 2 to maintain the stability of its internal temperature.

[0039] It should be noted that the designs of the entire air extraction mechanism and the gas collection mechanism fully consider the actual needs of industrial production. The air extraction mechanism realizes the fine adjustment of the internal air pressure of the reaction kettle 2 by precisely controlling the rotation speed and direction of the double-shaft motor 3523, thus ensuring the stability and controllability of the production process. The gas collection mechanism, through its unique design, effectively avoids the environmental pollution and safety hazards that may be caused by gas leakage, further improving the safety and environmental protection of the entire production system.

[0040] At the same time, the front sides of the two bottom connecting plates 33 are fixedly connected to the rear side of the outer wall of the reaction kettle 2, improving the overall stability of the air extraction mechanism 3 and making the air extraction mechanism 3 more stable and reliable during operation.

[0041] Working principle of the present invention: When the air pressure generated due to heating on the inner wall of the reaction kettle 2 is too high, the double-shaft motor 3523 is started at this time. The double-shaft motor 3523 drives the rotating rods 356 on the left and right sides to rotate. The rotating rod 356 drives the rotating rod 357 to rotate. The rotating rod 357 drives the push-pull rod connecting disc 358 to rotate. The push-pull rod connecting disc 358 drives the push-pull rod 359 to move. The push-pull rod 359 drives the horizontal connecting rod 3511 to move. The horizontal connecting rod 3511 drives the second push-pull rod 3514 to move. The second push-pull rod 3514 drives the second piston 3515 to reciprocate and slide on the inner wall of the control pipe 353. At the same time, the rotating rod 356 drives the second rotating rod 3521 to rotate. The second rotating rod 3521 drives the second push-pull rod connecting disc 3522 to rotate. The second push-pull rod connecting disc 3522 drives the third push-pull rod 3526 to move. The third push-pull rod 3526 drives the piston 3510 to reciprocate and slide on the inner wall of the control pipe 353. The reciprocating movement of the piston 3510 and the second piston 3515 can pump and press the air inside the control pipe 353. The reciprocating movement of the second piston 3515 simultaneously drives two push-pull disc connecting rods 3512 to push the push-pull disc 3513, the columnar push-pull rod 3516 and the push-pull vertical plate 3517 to reciprocate, thereby driving the third piston push-pull rod 3518 to push the third piston 3519 to reciprocate inside the air extraction pipe 34, so as to extract the excessive air pressure inside the reaction kettle 2 through the air extraction pipe 34, and with the reciprocating movement of the piston 3510 and the second piston 3515 on the inner wall of the control pipe 353, the extracted air is discharged into the control pipe 353 through the pipe 3520. Subsequently, the gas on the inner wall of the control pipe 353 is discharged into the inner wall of the air storage chamber 41 through the air storage chamber air extraction pipe 414 for storage, thus realizing the effective regulation of the air pressure inside the reaction kettle. At the same time, during the whole process, by precisely controlling the rotation speed and direction of the double-shaft motor 3523, the fine regulation of the air pressure inside the reaction kettle 2 can be realized, so as to meet the different requirements in the industrial production process of glycerol triacetate. Meanwhile, when the two push-pull vertical plates 3517 reciprocate back and forth, they will drive the connecting block 411 to move. The connecting block 411 drives the push-pull rotating rod 410 to rotate. The push-pull rotating rod 410 drives the control vertical rod 49 to slide inside the chute plate 44. The control vertical rod 49 drives the double-directional hinge block 48 to move. The double-directional hinge block 48 drives the irregular triangular rotating plate 47 to rotate around the columnar cross bar 43 as the center. The irregular triangular rotating plate 47 drives the air extraction plate 412 to rotate. During the arc-shaped rotation of the air extraction plate 412, the gas leaked from the pressure relief at the top of the reaction kettle can be effectively collected, avoiding environmental pollution or safety hazards caused by gas leakage. During the rotation of the air extraction plate 412, its surface is designed with a microporous structure, and these micropores can efficiently capture and adsorb gas molecules to ensure that the gas is completely collected. When the temperature of the inner wall of the reaction kettle 2 is insufficient, the gas is discharged through the gas transmission pipe 45 to provide the necessary heating gas for the reaction kettle 2 to maintain the stability of its internal temperature.

[0042] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. Industrial grade triacetin industrial production system, characterized by: It comprises a control console (1), the top of the control console (1) is fixedly connected to a reaction kettle (2), the rear side of the outer wall of the reaction kettle (2) is fixedly connected to a gas extraction mechanism (3), and the top of the gas extraction mechanism (3) is provided with a gas collection mechanism (4); The air extraction mechanism (3) comprises a connecting plate (31), the left and right sides of the connecting plate (31) are respectively fixedly connected with irregular connecting plates (32), the bottoms of the two irregular connecting plates (32) are fixedly connected with bottom connecting plates (33), the front sides of the two bottom connecting plates (33) are fixedly connected to the rear side of the outer wall of the reaction kettle (2), the inner sides of the two irregular connecting plates (32) are fixedly connected with air extraction pipes (34), the front sides of the two air extraction pipes (34) extend to the inner wall of the reaction kettle (2), and the top of the connecting plate (31) is fixedly connected with an extraction control component (35); The extraction control assembly (35) comprises two control tube connection plates (351), the front and rear sides of the top middle parts of the two control tube connection plates (351) are fixedly connected with control tube connection blocks (352), and the tops of the two groups of control tube connection blocks (352) are fixedly connected with control tubes (353).

2. The industrial production system of industrial grade triacetin according to claim 1, characterized in that: The middle parts of the bottoms of the two control pipes (353) are fixedly connected with pipes (3520), and the ends of the two pipes (3520) away from the control pipes (353) extend to the inner wall of the exhaust pipe (34).

3. The industrial production system of industrial grade triacetin according to claim 1, characterized in that: The middle parts of the top rear sides of the two control tube connection plates (351) are fixedly connected with guide rail upright rods (354), the left and right sides of the top front sides of the two control tube connection plates (351) are fixedly connected with two rotating rod connection rods (355), the inner walls of the multiple groups of rotating rod connection rods (355) are rotatably connected with rotating rods (356), the inner ends of the multiple groups of rotating rods (356) extend to the inner sides of the multiple groups of rotating rod connection rods (355) and are fixedly connected with rotating rods (357), and the multiple groups of rotating rods (356) are fixedly connected with rotating rods (357). The inner side of the rotating rod (357) away from the rotating rod (356) is rotatably connected to a push-pull rod connecting plate (358), and the rear sides of the outer walls of multiple push-pull rod connecting plates (358) are fixedly connected to push-pull rods (359). The rear sides of the left and right groups of push-pull rods (359) extend to the rear side of the control tube (353) and are rotatably connected to a transverse connecting rod (3511) on the inner side. The rear sides of the outer sides of the two control tube connecting plates (351) are fixedly connected to side connecting plates (3525).

4. The industrial production system of industrial grade triacetin according to claim 3, characterized in that: The inner ends of the two groups of rotating rods (356) in the middle are fixedly connected to the second rotating rod (3521), and the inner sides of the two groups of the second rotating rods (3521) away from the rotating rod (356) are rotatably connected to the second push-pull rod connecting plate (3522), and the rear sides of the outer walls of the two second push-pull rod connecting plates (3522) are fixedly connected to the third push-pull rod (3526), ​​and the rear inner walls of the two third push-pull rods (3526) are rotatably connected to the pistons (3510), and the outer walls of the two pistons (3510) are respectively slidably connected to the inner walls of the two control tubes (353).

5. The industrial production system of industrial grade triacetin according to claim 3, characterized in that: The inner ends of the two inner rotating rods (356) are fixedly connected to a dual-axis motor (3523), and the inner ends of the two inner rotating rods (356) are respectively fixedly connected to the left and right output ends of the dual-axis motor (3523). The bottom of the dual-axis motor (3523) is fixedly connected to a dual-axis motor placement block (3524), and the bottom of the dual-axis motor placement block (3524) is fixedly connected to the middle of the front side of the top of the connecting plate (31).

6. The industrial production system of industrial grade triacetin according to claim 3, characterized in that: The middle parts of the outer walls of the two transverse connecting rods (3511) are rotatably connected to the second push-pull rod (3514), the front sides of the two second push-pull rods (3514) extend to the inner wall of the control tube (353) and are rotatably connected to the second piston (3515), the outer walls of the two second pistons (3515) are respectively slidably connected to the inner walls of the two control tubes (353), the left and right sides of the rear sides of the outer walls of the two transverse connecting rods (3511) are fixedly connected to the push-pull disk connecting rods (3512), and the rear ends of the two groups of push-pull disk connecting rods (3512) are fixedly connected to the push-pull disk (3513). ), the middle parts of the rear sides of the two push-pull plates (3513) are fixedly connected with a columnar push-pull rod (3516), the rear sides of the two columnar push-pull rods (3516) extend to the rear sides of the guide rail uprights (354) and are fixedly connected with a push-pull upright plate (3517), the bottoms of the two push-pull upright plates (3517) extend to the bottom of the control tube connecting plate (351) and the front sides are fixedly connected with a third piston push-pull rod (3518), the front ends of the two third piston push-pull rods (3518) extend to the inner walls of the two exhaust pipes (34) and are fixedly connected with a third piston (3519).

7. The industrial production system of industrial grade triacetin according to claim 1, characterized in that: The gas collection mechanism (4) comprises a gas storage bin (41), the tops of the left and right sides of the gas storage bin (41) are fixedly connected with hinge blocks (42), the tops of the inner sides of the two hinge blocks (42) are fixedly connected with columnar cross bars (43), the rear sides of the two hinge blocks (42) are fixedly connected with slide plates (44), and the bottoms of the two hinge blocks (42) are fixedly connected with connecting vertical rods (46).

8. The industrial production system of industrial grade triacetin according to claim 7, characterized in that: The outer wall of the gas storage bin (41) is fixedly connected to the inner sides of the two side connecting plates (3525), and the left and right sides of the bottom of the gas storage bin (41) are respectively fixedly connected with gas storage bin exhaust pipes (414), and the ends of the two gas storage bin exhaust pipes (414) away from the gas storage bin (41) respectively extend to the inner walls of the two control pipes (353), and the inner sides of the two connecting uprights (46) are respectively fixedly connected to the outer sides of the two side connecting plates (3525), and the front side of the gas storage bin (41) is fixedly connected with an air supply pipe (45), and the end of the air supply pipe (45) away from the gas storage bin (41) extends to the inner wall of the reactor (2).

9. The industrial production system of industrial grade triacetin according to claim 7, characterized in that: The outer walls of the two columnar cross bars (43) are rotatably connected to irregular triangular rotating plates (47), the front sides of the two irregular triangular rotating plates (47) are fixedly connected to exhaust plates (412), the tops of the rear sides of the outer walls of the two irregular triangular rotating plates (47) are rotatably connected to bidirectional hinge blocks (48), the inner sides of the two bidirectional hinge blocks (48) away from the irregular triangular rotating plates (47) are rotatably connected to control vertical rods (49), and the outer walls of the two control vertical rods (49) are respectively slidably connected to the inner walls of the two slide slot plates (44).

10. The industrial production system of industrial grade triacetin according to claim 9, characterized in that: The outer sides of the two control vertical rods (49) away from the bidirectional hinge block (48) are rotatably connected to a push-pull rotating rod (410), and the inner sides of the two push-pull rotating rods (410) away from the control vertical rods (49) are rotatably connected to a connecting block (411). The rear sides of the two connecting blocks (411) are respectively fixedly connected to the middle of the front sides of the two push-pull vertical plates (3517). The rear side of the exhaust plate (412) is fixedly connected to an exhaust plate air supply pipe (413), and the exhaust plate air supply pipe (413) away from the exhaust plate (412) is fixedly connected to the rear side of the air storage bin (41).

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