A light component removal column for methylal refining

Abstract

The present invention discloses a light component removal tower for methylal refining, which relates to the technical field of methylal refining. The light component removal tower for methylal refining includes a tower body, and a discharge valve is arranged at the bottom of the tower body. A liquid inlet valve is fixedly inserted into the side wall of the tower body, and a steam valve is fixedly inserted into the side wall of the tower body. A rotating pipe is rotatably connected to the top of the tower body. For this light component removal tower for methylal refining, the steam generated by evaporation can quickly reach a suitable pressure. At the same time, ensuring that the pressure inside the tower body is within a suitable range can improve the efficiency of methylal refining; it is convenient to detect the evaporation speed to avoid too fast evaporation speed, ensuring the quality of methylal refining. At the same time, when the methylal concentration is low, the methylal liquid can be smeared on the upper surface of the disc to form a thin layer of liquid, and the disc is heated by an electric heating disc, which can increase the evaporation area, thereby improving the evaporation efficiency and further improving the efficiency of methylal refining.

Description

Technical Field

[0001] The present invention relates to the technical field of methylal refining, and specifically to a de-light tower for methylal refining. Background Art

[0002] Methylal is a colorless, clear, volatile and flammable liquid with a chloroform odor and a pungent taste. It is soluble in three times its volume of water, irritating to mucous membranes, has an anesthetic effect, inhalation of its vapor can cause irritation of the nose and throat, dizziness and other symptoms at high concentrations, is harmful to the eyes, and the damage can last for several days. Long-term skin contact can cause dry skin. It has a very wide application. During the refining process of methylal, the collected methylal contains a large amount of water vapor and needs to be dehydrated again. In the traditional refining process, methylal is heated, and the heated methylal needs to be cooled. Usually, a de-light tower is used for its refining. The de-light tower for methylal refining is a specially designed chemical engineering equipment, and heating pipes and stirring devices are arranged inside the tower body to heat and stir the solution to promote the evaporation and separation of methylal.

[0003] However, when the existing de-light tower for methylal refining is in use, due to the relatively large space above the liquid level, the steam generated by evaporation cannot quickly reach the appropriate pressure. Too high or too low pressure will affect the evaporation efficiency. At the same time, it is not convenient to detect the evaporation speed. Although increasing the evaporation speed is our goal, too fast evaporation speed may cause some components in the solution to precipitate or crystallize, affecting the quality and stability of the final product. Therefore, in actual operation, it is necessary to reasonably control the evaporation speed. Moreover, as the evaporation progresses, when the concentration of the methylal liquid is relatively low, the evaporation speed is slow, which will affect the evaporation efficiency and further affect the efficiency and quality of methylal refining. Summary of the Invention

[0004] The purpose of the present invention is to provide a de-light tower for methylal refining to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A de-light tower for methylal refining, comprising a tower body, and a discharge valve is arranged at the bottom of the tower body. A liquid inlet valve is fixedly inserted into the side wall of the tower body, and a steam valve is fixedly inserted into the side wall of the tower body. The top of the tower body is rotatably connected with a rotating pipe, and the upper end of the rotating pipe penetrates through the top of the tower body and is driven by a driving mechanism. A plurality of stirring blades arranged in an array are fixedly connected to the side wall of the rotating pipe, and a disc is fixedly sleeved on the side wall of the rotating pipe. A plurality of first through holes arranged in an array are opened on the top of the disc, and an electric heating plate is connected to the bottom of the disc through a lifting mechanism. A plurality of second through holes arranged in an array are opened on the bottom of the electric heating plate, and a first annular cover is fixedly connected to the inner side wall of the rotating pipe. A plurality of third through holes arranged in an array are opened on the side wall of the rotating pipe, and a second annular cover is rotatably connected to the outer side wall of the rotating pipe. A plurality of liquid spraying holes arranged in an array are opened on the side wall of the second annular cover, and a liquid supply mechanism for supplying liquid into the first annular cover is arranged in the rotating pipe. A coating mechanism for coating the liquid is arranged on the inner side wall of the tower body, and a partition plate is fixedly connected to the inner side wall of the tower body. The partition plate is sleeved on the side wall of the rotating pipe, and a plurality of gas storage tanks arranged in an array are fixedly inserted into the top of the partition plate. A first counterweight block is slidably connected in each gas storage tank, and a first T-shaped guide rod is fixedly connected to the top of the first counterweight block. A connecting plate is sleeved on the side wall of the first T-shaped guide rod, and the connecting plate is fixed to the top of the gas storage tank. A detection mechanism for detecting the first counterweight block is arranged on the top of the gas storage tank.

[0006] Preferably, the coating mechanism includes a fixed box fixedly connected to the inner side wall of the tower body, a sponge block is fixedly connected to the bottom of the fixed box, a second counterweight block is slidably connected in the fixed box, and a connecting pipe is fixedly connected between the fixed box and the second annular cover.

[0007] Preferably, the detection mechanism includes a ring fixedly connected to the top of the first T-shaped guide rod, a fixed block is fixedly connected to the top of one of the gas storage tanks, a rotating plate is rotatably connected to the side wall of the fixed block through a rotating rod, an induction block is fixedly connected to the bottom of the rotating plate, a first L-shaped block is fixedly connected to the top of one of the gas storage tanks, a proximity switch is fixedly connected to the bottom of the first L-shaped block, a chute is opened on the side wall of the rotating plate, a first connecting block is fixedly connected to the side wall of one of the first T-shaped guide rods, a first mounting block is fixedly connected to the top of the first connecting block, a push pin is fixedly connected to the side wall of the first mounting block, and the push pin is inserted into the chute. A detection component for detecting the rotation of the rotating rod is arranged on the side wall of the fixed block.

[0008] Preferably, the detection component includes a pointer fixedly connected to the side wall of the rotating rod, and an angle mark is provided on the side wall of the fixed block. A second L-shaped block is fixedly connected to the side wall of the fixed block, and a vision sensor is fixedly inserted into the side wall of the second L-shaped block.

[0009] Preferably, the liquid supply mechanism includes a support frame fixedly connected to the top of the tower body, and a moving rod is inserted into the top of the support frame. The movement of the moving rod is pushed by a pushing mechanism. The lower end of the moving rod is rotatably connected to a piston. A liquid outlet pipe is fixedly inserted into the top of the piston, and the lower end of the liquid outlet pipe penetrates to the bottom of the piston. A first one-way valve is arranged in the liquid outlet pipe, and a hose is fixedly connected between the upper end of the liquid outlet pipe and the first annular cover. A strip-shaped opening is formed in the side wall of the rotating pipe, and a liquid inlet pipe is inserted into the strip-shaped opening. The liquid inlet pipe is fixed to the bottom of the piston, and telescopic covers are fixedly connected between the top and bottom of the liquid inlet pipe and the top and bottom of the strip-shaped opening respectively. A plurality of liquid inlet holes arranged in an array are formed in the side wall of the liquid inlet pipe, and a second one-way valve is arranged in the liquid inlet pipe.

[0010] Preferably, the lifting mechanism includes a U-shaped block fixedly connected to the bottom of the electric heating plate, and two symmetrically arranged second T-shaped guide rods are fixedly connected to the bottom of the U-shaped block. A first spring is sleeved on the side wall of each second T-shaped guide rod, and a slider is sleeved on the side wall of the second T-shaped guide rod. A third L-shaped block is fixedly connected to the side wall of the slider, and the third L-shaped block is fixed to the bottom of the disc. A first iron block is fixedly connected to the bottom of the U-shaped block, and a first electromagnet is fixedly connected to the top of the slider.

[0011] Preferably, the pushing mechanism includes a moving plate fixedly connected to the top of the moving rod, and a pushing block is connected to the bottom of the moving plate through a reset mechanism. A fixed ring is fixedly sleeved on the side wall of the rotating pipe, and a plurality of tapered rods arranged in an array are fixedly connected to the top of the fixed ring. The movement of the pushing block is pushed by a pushing component. Two symmetrically arranged sleeves are fixedly connected to the bottom of the moving plate. A sleeve rod is inserted into each sleeve, and the lower end of the sleeve rod is fixedly connected to a second connecting block. The second connecting block is fixed to the side wall of the support frame, and a reset spring is sleeved on the side wall of each sleeve.

[0012] Preferably, the reset mechanism includes a support plate fixedly connected to the bottom of the moving plate, and two symmetrically arranged third T-shaped guide rods are inserted into the side wall of the support plate. One end of each third T-shaped guide rod is fixed to the side wall of the pushing block, and a second spring is sleeved on the side wall of each third T-shaped guide rod.

[0013] Preferably, the pushing component includes a second mounting block fixedly connected to the bottom of the support plate. A second electromagnet is fixedly connected to the side wall of the second mounting block, and a second iron block is fixedly connected to the side wall of the pushing block.

[0014] Preferably, the driving mechanism includes a gear ring fixedly sleeved on the side wall of the rotating pipe, and an L-shaped plate is fixedly connected to the top of the tower body. A motor is fixedly connected to the top of the L-shaped plate, and an output end of the motor is fixedly connected to a gear, and the gear is meshed with the gear ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) For the light component removal tower used for methylal refining, by setting a detection mechanism, etc., when refining methylal, methylal is supplied into the tower body through the liquid inlet valve for heating and evaporation. At the same time, the motor is started, and the rotation of the motor drives the rotation of the gear, thereby driving the rotation of the gear ring, and further driving the rotation of the rotating pipe and the stirring blades, so as to stir the methylal in the tower body, improve the evaporation efficiency, and the generated steam can flow upward through the second through hole and the first through hole. As the evaporation progresses, the pressure in the tower body gradually increases. Since the space above the liquid is small, a suitable pressure can be quickly reached. After reaching the suitable pressure, when the steam continues to increase, it can push the first counterweight and the first T-shaped guide rod upward. At the same time, when the first T-shaped guide rod moves upward, it can drive the ring to move upward synchronously, and moreover, it can drive the push pin to slide in the chute through the first connecting block and the first mounting block, thereby pushing the rotating plate to rotate upward along the rotating rod. When the sensing block contacts the proximity switch, the steam valve is opened, and a part of the steam in the tower body is discharged and cooled and collected through an external air extraction device. At this time, the first counterweight can move downward under the action of gravity, and ensure that the pressure in the tower body is within a suitable range, so as to improve the efficiency of methylal refining.

[0017] (2)The light - removing tower for methylal refining, by setting up detection components, etc., when evaporating and refining methylal, as the steam in the tower body gradually increases, the first counterweight and the first T - shaped guide rod gradually move upward. At the same time, it can push the rotating rod to rotate. When the rotating rod rotates, it can drive the pointer to rotate. And by observing the change amount of the angle mark indicated by the pointer within a certain time through the vision sensor, the evaporation speed of methylal can be determined, which is convenient for detecting the evaporation speed, avoiding too fast evaporation speed, and ensuring the quality of methylal refining. As the evaporation progresses, the concentration of methylal becomes lower and lower. When it is detected that the evaporation speed is slow, it means that the concentration of methylal is low. At this time, the first electromagnet is powered off. Under the action of the first spring, the electric heating plate is driven upward by the second T - shaped guide rod and the U - shaped block and fits with the bottom of the disc. And the electric heating plate can seal the first through - hole. At the same time, the second electromagnet is powered on. After the second electromagnet is powered on, it attracts the second iron block, making the pushing block move towards the second mounting block. At the same time, the second spring is compressed. And when the rotating tube rotates, it can drive the conical rod to rotate through the fixed ring. When the conical rod abuts against the side wall of the pushing block, it can push the pushing block upward. At the same time, the moving rod is driven upward through the reset mechanism and the moving plate, and the reset spring is stretched. When the conical rod passes over the pushing block, the moving rod can move downward and reset under the action of the reset spring. In this way, the moving rod can drive the piston to move up and down reciprocally. When the piston moves upward, a negative pressure is generated in the rotating tube. At the same time, the first one - way valve closes and the second one - way valve opens. At this time, the methylal liquid in the tower body can enter the rotating tube through the liquid inlet hole and the liquid inlet pipe. When the piston moves downward, the liquid in the rotating tube can be squeezed. At the same time, the first one - way valve opens and the second one - way valve closes. At this time, the liquid in the rotating tube can enter the first annular cover through the liquid outlet pipe and the hose, then enter the second annular cover through the third through - hole and be sprayed on the upper surface of the disc through the liquid spraying holes. At the same time, under the action of centrifugal force, it is thrown outward and spreads out flat to form a thin - layer liquid, and can enter the first through - hole. The excess liquid can be thrown towards the inner wall of the tower and flow downward. At the same time, the electric heating plate is started to heat the disc, which can increase the evaporation area, thereby improving the evaporation efficiency and further improving the refining efficiency of methylal. At the same time, when the rotating tube rotates, it can drive the piston and the liquid inlet pipe to rotate synchronously. And when the piston moves up and down reciprocally, it can drive the liquid inlet pipe to move. At the same time, the telescopic cover deforms, making the liquid extraction more uniform.

[0018] (3) The light - removing tower for methylal refining, by setting up a smearing mechanism, etc., when the methylal liquid enters the second annular cover, it can enter the fixed box through the connecting pipe, can push the second counterweight upward, and, under the action of the gravity of the second counterweight, can make the methylal liquid smear on the upper surface of the disc after passing through the sponge block, making the thin - layer liquid more comprehensive and uniform, which can improve the evaporation efficiency and then improve the methylal refining efficiency. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the partial cross - sectional structure of the tower body in the present invention;

[0021] Figure 3 It is a schematic diagram of the partial cross - sectional structure of the tower body from another perspective in the present invention;

[0022] Figure 4 It is a schematic diagram of the partial cross - sectional structure of the rotating pipe in the present invention;

[0023] Figure 5 It is a schematic diagram of the partial cross - sectional structure of the air storage tank in the present invention;

[0024] Figure 6 It is Figure 1 an enlarged schematic diagram of part A in

[0025] Figure 7 It is Figure 2 an enlarged schematic diagram of part B in

[0026] Figure 8 It is Figure 3 an enlarged schematic diagram of part C in

[0027] Figure 9 It is Figure 4 an enlarged schematic diagram of part D in

[0028] Figure 10 It is Figure 4 an enlarged schematic diagram of part E in

[0029] Figure 11 It is Figure 5 an enlarged schematic diagram of part F in

[0030] Figure 12 It is Figure 11 an enlarged schematic diagram of part G in

[0031] Figure 13 It is Figure 9 an enlarged schematic diagram of part H in

[0032] Figure 14 is Figure 6 the enlarged structural schematic diagram at position I in

[0033] Figure 15 the position schematic diagram of the lifting mechanism in the present invention;

[0034] Figure 16 is Figure 15 the enlarged structural schematic diagram at position J in

[0035] In the figure: 101, tower body; 102, discharge valve; 103, liquid inlet valve; 104, steam valve; 201, fixed box; 202, sponge block; 203, second counterweight; 204, connecting pipe; 301, first L-shaped block; 302, proximity switch; 303, ring; 304, first connecting block; 305, fixed block; 306, rotating rod; 307, rotating plate; 308, first mounting block; 309, chute; 310, push pin; 311, induction block; 401, pointer; 402, angle mark; 403, second L-shaped block; 404, vision sensor; 501, support frame; 502, moving rod; 503, piston; 504, liquid outlet pipe; 505, hose; 506, strip-shaped opening; 507, liquid inlet pipe; 508, liquid inlet hole; 509, telescopic cover; 510, return spring; 511, second connecting block; 512, sleeve rod; 513, sleeve; 601, second T-shaped guide rod; 602, slider; 603, first iron block; 604, third L-shaped block; 605, first electromagnet; 606, first spring; 607, U-shaped block; 701, moving plate; 702, push block; 703, fixed ring; 704, tapered rod; 801, support plate; 802, second mounting block; 803, second electromagnet; 804, second iron block; 901, third T-shaped guide rod; 902, second spring; 1001, gear ring; 1002, gear; 1003, L-shaped plate; 1004, motor; 11, rotating pipe; 12, stirring blade; 13, disc; 14, first through hole; 15, electric heating plate; 16, second through hole; 17, partition plate; 18, gas storage tank; 19, first counterweight; 20, connecting plate; 21, first T-shaped guide rod; 22, first annular cover; 23, third through hole; 24, second annular cover; 25, liquid spraying hole. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer toFigures 1 - 16 , the present invention provides a technical solution: a light - removing tower for methylal refining, including a tower body 101, and a discharge valve 102 is arranged at the bottom of the tower body 101. A liquid inlet valve 103 is fixedly inserted into the side wall of the tower body 101, and a steam valve 104 is fixedly inserted into the side wall of the tower body 101. The top of the tower body 101 is rotatably connected to a rotating pipe 11, and the upper end of the rotating pipe 11 penetrates through the top of the tower body 101 and is driven by a driving mechanism. A plurality of stirring vanes 12 arranged in an array are fixedly connected to the side wall of the rotating pipe 11, and a disc 13 is fixedly sleeved on the side wall of the rotating pipe 11. A plurality of first through - holes 14 arranged in an array are formed in the top of the disc 13, and an electric heating plate 15 is connected to the bottom of the disc 13 through a lifting mechanism. A plurality of second through - holes 16 arranged in an array are formed in the bottom of the electric heating plate 15, and a first annular cover 22 is fixedly connected to the inner side wall of the rotating pipe 11. A plurality of third through - holes 23 arranged in an array are formed in the side wall of the rotating pipe 11, and a second annular cover 24 is rotatably connected to the outer side wall of the rotating pipe 11. A plurality of liquid spraying holes 25 arranged in an array are formed in the side wall of the second annular cover 24, and a liquid supply mechanism for supplying liquid into the first annular cover 22 is arranged in the rotating pipe 11. A coating mechanism for coating the liquid is arranged on the inner side wall of the tower body 101, and a partition disc 17 is fixedly connected to the inner side wall of the tower body 101. The partition disc 17 is sleeved on the side wall of the rotating pipe 11, and a plurality of gas storage tanks 18 arranged in an array are fixedly inserted into the top of the partition disc 17. A first counterweight block 19 is slidably connected in each gas storage tank 18, and a first T - shaped guide rod 21 is fixedly connected to the top of the first counterweight block 19. A connecting plate 20 is sleeved on the side wall of the first T - shaped guide rod 21, and the connecting plate 20 is fixed to the top of the gas storage tank 18. A detection mechanism for detecting the first counterweight block 19 is arranged on the top of the gas storage tank 18. The steam generated by evaporation can quickly reach a suitable pressure. At the same time, ensuring that the pressure inside the tower body 101 is within a suitable range can improve the efficiency of methylal refining; it is convenient to detect the evaporation speed, avoid the evaporation speed from being too fast, and ensure the quality of methylal refining. At the same time, when the methylal concentration is low, the methylal liquid can be coated on the upper surface of the disc 13 to form a thin - layer liquid. And by heating the disc 13 with the electric heating plate 15, the evaporation area can be increased, thereby improving the evaporation efficiency and further improving the efficiency of methylal refining.

[0038] The coating mechanism includes a fixed box 201 fixedly connected to the inner side wall of the tower body 101, and a sponge block 202 is fixedly connected to the bottom of the fixed box 201. A second counterweight 203 is slidably connected in the fixed box 201, and a connecting pipe 204 is fixedly connected between the fixed box 201 and the second annular cover 24. When the methylal liquid enters the second annular cover 24, it can enter the fixed box 201 through the connecting pipe 204, and can push the second counterweight 203 to move upward. Moreover, under the action of the gravity of the second counterweight 203, the methylal liquid can be applied to the upper surface of the disc 13 after passing through the sponge block 202, making the thin-layer liquid more comprehensive and uniform, improving the evaporation efficiency, and further improving the efficiency of methylal refining.

[0039] The detection mechanism includes a circular ring 303 fixedly connected to the top of the first T-shaped guide rod 21. A fixed block 305 is fixedly connected to the top of one of the air storage tanks 18. A rotating plate 307 is rotatably connected to the side wall of the fixed block 305 through a rotating rod 306. An induction block 311 is fixedly connected to the bottom of the rotating plate 307. A first L-shaped block 301 is fixedly connected to the top of one of the air storage tanks 18. A proximity switch 302 is fixedly connected to the bottom of the first L-shaped block 301. A chute 309 is opened on the side wall of the rotating plate 307. A first connecting block 304 is fixedly connected to the side wall of one of the first T-shaped guide rods 21. A first mounting block 308 is fixedly connected to the top of the first connecting block 304. A push pin 310 is fixedly connected to the side wall of the first mounting block 308, and the push pin 310 is inserted into the chute 309. A detection component for detecting the rotation of the rotating rod 306 is arranged on the side wall of the fixed block 305. The generated steam can flow upward through the second through hole 16 and the first through hole 14. As the evaporation progresses, the pressure inside the tower body 101 gradually increases. Since the space above the liquid is small, a suitable pressure can be quickly reached. After reaching the suitable pressure, when the steam continues to increase, it can push the first counterweight 19 and the first T-shaped guide rod 21 to move upward. At the same time, when the first T-shaped guide rod 21 moves upward, it can drive the circular ring 303 to move upward synchronously, and can drive the push pin 310 to slide in the chute 309 through the first connecting block 304 and the first mounting block 308, thereby pushing the rotating plate 307 to rotate upward along the rotating rod 306. When the induction block 311 contacts the proximity switch 302, the steam valve 104 is opened, and part of the steam inside the tower body 101 is discharged and cooled and collected through an external air extraction device. At this time, the first counterweight 19 can move downward under the action of gravity, and ensure that the pressure inside the tower body 101 is within a suitable range, improving the efficiency of methylal refining.

[0040] The detection component includes a pointer 401 fixedly connected to the side wall of the rotating rod 306, and an angle identifier 402 is provided on the side wall of the fixed block 305. A second L-shaped block 403 is fixedly connected to the side wall of the fixed block 305, and a visual sensor 404 is fixedly inserted into the side wall of the second L-shaped block 403. When evaporating and refining methylal, as the steam in the tower body 101 gradually increases, the first counterweight 19 and the first T-shaped guide rod 21 gradually move upward. At the same time, it can push the rotating rod 306 to rotate. When the rotating rod 306 rotates, it can drive the pointer 401 to rotate. Moreover, by observing the change amount of the angle identifier 402 indicated by the pointer 401 within a certain period of time through the visual sensor 404, the evaporation rate of methylal can be determined, which is convenient for detecting the evaporation rate, avoiding too fast evaporation rate, and ensuring the quality of methylal refining. As the evaporation progresses, the concentration of methylal becomes lower and lower. When it is detected that the evaporation rate is slower, it means that the concentration of methylal is lower.

[0041] The liquid supply mechanism includes a support frame 501 fixedly connected to the top of the tower body 101. A moving rod 502 is inserted into the top of the support frame 501. The movement of the moving rod 502 is pushed by a pushing mechanism. The lower end of the moving rod 502 is rotatably connected to a piston 503. A liquid outlet pipe 504 is fixedly inserted into the top of the piston 503, and the lower end of the liquid outlet pipe 504 penetrates to the bottom of the piston 503. A first one-way valve is arranged in the liquid outlet pipe 504, and the conduction direction of the first one-way valve is from the rotating pipe 11 to the inside of the hose 505. A hose 505 is fixedly connected between the upper end of the liquid outlet pipe 504 and the first annular cover 22. A strip-shaped opening 506 is formed in the side wall of the rotating pipe 11, and a liquid inlet pipe 507 is inserted into the strip-shaped opening 506. The liquid inlet pipe 507 is fixed to the bottom of the piston 503. Telescopic covers 509 are fixedly connected between the top and bottom of the liquid inlet pipe 507 and the top and bottom of the strip-shaped opening 506. A plurality of liquid inlet holes 508 arranged in an array are formed in the side wall of the liquid inlet pipe 507. A second one-way valve is arranged in the liquid inlet pipe 507, and the conduction direction of the second one-way valve is from the tower body 101 to the inside of the rotating pipe 11. When the concentration of methylal is relatively low, the electric heating plate 15 is moved upward by the lifting mechanism to be in contact with the bottom of the disc 13, and the electric heating plate 15 can block and seal the first through hole 14. At the same time, the piston 503 is reciprocated up and down by the pushing mechanism. When the piston 503 moves upward, a negative pressure is generated in the rotating pipe 11. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the methylal liquid in the tower body 101 can enter the rotating pipe 11 through the liquid inlet holes 508 and the liquid inlet pipe 507. When the piston 503 moves downward, the liquid in the rotating pipe 11 can be squeezed. At the same time, the first one-way valve is opened and the second one-way valve is closed. At this time, the liquid in the rotating pipe 11 can enter the first annular cover 22 through the liquid outlet pipe 504 and the hose 505, then enter the second annular cover 24 through the third through hole 23 and be sprayed on the upper surface of the disc 13 through the liquid spraying holes 25. At the same time, under the action of centrifugal force, it is thrown outward and spreads out to form a thin-layer liquid, and can enter the first through hole 14. The excess liquid can be thrown towards the inner wall of the tower body 101 and flow downward. At the same time, the electric heating plate 15 is started to heat the disc 13, which can increase the evaporation area, thereby improving the evaporation efficiency and further improving the refining efficiency of methylal. At the same time, when the rotating pipe 11 rotates, it can drive the piston 503 and the liquid inlet pipe 507 to rotate synchronously. And when the piston 503 reciprocates up and down, it can drive the liquid inlet pipe 507 to move, and at the same time, the telescopic cover 509 deforms, making the liquid extraction more uniform.

[0042] The lifting mechanism includes a U-shaped block 607 fixedly connected to the bottom of the electric heating plate 15. Two symmetrically arranged second T-shaped guide rods 601 are fixedly connected to the bottom of the U-shaped block 607. A first spring 606 is sleeved on the side wall of each second T-shaped guide rod 601, and a slider 602 is sleeved on the side wall of the second T-shaped guide rod 601. A third L-shaped block 604 is fixedly connected to the side wall of the slider 602, and the third L-shaped block 604 is fixed to the bottom of the disc 13. A first iron block 603 is fixedly connected to the bottom of the U-shaped block 607, and a first electromagnet 605 is fixedly connected to the top of the slider 602. When the first electromagnet 605 is powered off, under the action of the first spring 606, the electric heating plate 15 is driven to move upward by the second T-shaped guide rod 601 and the U-shaped block 607 and fit against the bottom of the disc 13. Moreover, the electric heating plate 15 can block and seal the first through hole 14.

[0043] The pushing mechanism includes a moving plate 701 fixedly connected to the top of the moving rod 502. A pushing block 702 is connected to the bottom of the moving plate 701 through a reset mechanism. A fixed ring 703 is fixedly sleeved on the side wall of the rotating tube 11, and a plurality of conical rods 704 arranged in an array are fixedly connected to the top of the fixed ring 703. The movement of the pushing block 702 is pushed by a pushing component. Two symmetrically arranged sleeves 513 are fixedly connected to the bottom of the moving plate 701. A sleeve rod 512 is inserted into each sleeve 513, and the lower end of the sleeve rod 512 is fixedly connected to a second connecting block 511. The second connecting block 511 is fixed to the side wall of the support frame 501, and a reset spring 510 is sleeved on the side wall of each sleeve 513. By moving the pushing block 702 through the pushing component, when the rotating tube 11 rotates, the conical rods 704 can be driven to rotate by the fixed ring 703. When the conical rods 704 abut against the side wall of the pushing block 702, the pushing block 702 can be pushed upward. At the same time, the moving rod 502 is driven to move upward by the reset mechanism and the moving plate 701. At the same time, the reset spring 510 is stretched. When the conical rods 704 pass over the pushing block 702, the moving rod 502 can move downward and reset under the action of the reset spring 510. Repeating this process can make the moving rod 502 drive the piston 503 to move up and down reciprocally.

[0044] The reset mechanism includes a support plate 801 fixedly connected to the bottom of the moving plate 701. Two symmetrically arranged third T-shaped guide rods 901 are inserted into the side wall of the support plate 801. One end of the third T-shaped guide rod 901 is fixed to the side wall of the pushing block 702, and a second spring 902 is sleeved on the side wall of each third T-shaped guide rod 901, which plays a role in guiding and resetting the movement of the pushing block 702.

[0045] The pushing component includes a second mounting block 802 fixedly connected to the bottom of the support plate 801. A second electromagnet 803 is fixedly connected to the side wall of the second mounting block 802, and a second iron block 804 is fixedly connected to the side wall of the pushing block 702. When the second electromagnet 803 is energized, the second electromagnet 803 attracts the second iron block 804 after being energized, causing the pushing block 702 to move towards the second mounting block 802. At the same time, the second spring 902 is compressed.

[0046] The driving mechanism includes a gear ring 1001 fixedly sleeved on the side wall of the rotating tube 11. The top of the tower body 101 is fixedly connected with an L-shaped plate 1003. A motor 1004 is fixedly connected to the top of the L-shaped plate 1003. The output end of the motor 1004 is fixedly connected with a gear 1002, and the gear 1002 is meshed with the gear ring 1001. When the motor 1004 is started, the rotation of the motor 1004 drives the rotation of the gear 1002, thereby driving the gear ring 1001 to rotate, and further driving the rotating tube 11 and the stirring blade 12 to rotate, enabling the stirring operation of the methylal in the tower body 101 and improving the evaporation efficiency.

[0047] Working principle: When in use, when refining methylal, the methylal is supplied into the tower body 101 through the liquid inlet valve 103 for heating and evaporation. At the same time, the motor 1004 is started. The rotation of the motor 1004 drives the rotation of the gear 1002, thereby driving the gear ring 1001 to rotate, and further driving the rotating tube 11 and the stirring blade 12 to rotate, enabling the stirring operation of the methylal in the tower body 101 and improving the evaporation efficiency. The generated steam can flow upward through the second through hole 16 and the first through hole 14. As the evaporation progresses, the pressure in the tower body 101 gradually increases. Since the space above the liquid is small, the appropriate pressure can be quickly reached.

[0048] After reaching the appropriate pressure, when the steam continues to increase, it can push the first counterweight 19 and the first T-shaped guide rod 21 upward. At the same time, when the first T-shaped guide rod 21 moves upward, it can drive the ring 303 to move upward synchronously. And it can drive the push pin 310 to slide in the chute 309 through the first connecting block 304 and the first mounting block 308, thereby pushing the rotating plate 307 to rotate upward along the rotating rod 306. When the sensing block 311 contacts the proximity switch 302, the steam valve 104 is opened, and a part of the steam in the tower body 101 is discharged and cooled and collected through an external air extraction device. At this time, the first counterweight 19 can move downward under the action of gravity, and ensure that the pressure in the tower body 101 is within the appropriate range, improving the efficiency of methylal refining.

[0049] When evaporating and refining methylal, as the steam in the tower body 101 gradually increases, the first counterweight 19 and the first T-shaped guide rod 21 gradually move upward. At the same time, it can push the rotating rod 306 to rotate. When the rotating rod 306 rotates, it can drive the pointer 401 to rotate. And by observing the change amount of the angle mark 402 indicated by the pointer 401 within a certain period of time through the vision sensor 404, the evaporation speed of methylal can be determined, which is convenient for detecting the evaporation speed, avoiding too fast evaporation speed, and ensuring the quality of methylal refining. As the evaporation progresses, the concentration of methylal becomes lower and lower. When it is detected that the evaporation speed is slow, it means that the concentration of methylal is low. At this time, the first electromagnet 605 is powered off. Under the action of the first spring 606, the electric heating plate 15 is driven to move upward by the second T-shaped guide rod 601 and the U-shaped block 607 and fits with the bottom of the disc 13. And the electric heating plate 15 can seal the first through hole 14. At the same time, the second electromagnet 803 is powered on. After the second electromagnet 803 is powered on, it attracts the second iron block 804, so that the pushing block 702 moves in the direction close to the second mounting block 802, and at the same time, the second spring 902 is compressed.

[0050] When the rotating tube 11 rotates, it can drive the conical rod 704 to rotate through the fixed ring 703. When the conical rod 704 abuts against the side wall of the pushing block 702, it can push the pushing block 702 to move upward. At the same time, the moving rod 502 is driven to move upward by the reset mechanism and the moving plate 701, and at the same time, the reset spring 510 is stretched. When the conical rod 704 passes over the pushing block 702, the moving rod 502 can move downward and reset under the action of the reset spring 510. In this way, the moving rod 502 can drive the piston 503 to move up and down reciprocally.

[0051] When the piston 503 moves upward, a negative pressure is generated in the rotating tube 11. At the same time, the first one-way valve closes and the second one-way valve opens. At this time, the methylal liquid in the tower body 101 can enter the rotating tube 11 through the liquid inlet hole 508 and the liquid inlet pipe 507. When the piston 503 moves downward, the liquid in the rotating tube 11 can be squeezed. At the same time, the first one-way valve opens and the second one-way valve closes. At this time, the liquid in the rotating tube 11 can enter the first annular cover 22 through the liquid outlet pipe 504 and the flexible pipe 505. Then, it enters the second annular cover 24 through the third through hole 23 and is sprayed on the upper surface of the disc 13 through the liquid spraying holes 25. At the same time, under the action of centrifugal force, it is thrown outward and spreads out to form a thin-layer liquid. And it can enter the first through hole 14. The excess liquid can be thrown towards the inner wall of the tower body 101 and flow downward. At the same time, the electric heating plate 15 is started to heat the disc 13, which can increase the evaporation area, thereby improving the evaporation efficiency, and further improving the refining efficiency of methylal. At the same time, when the rotating tube 11 rotates, it can drive the piston 503 and the liquid inlet pipe 507 to rotate synchronously. And when the piston 503 moves up and down reciprocally, it can drive the liquid inlet pipe 507 to move. At the same time, the telescopic cover 509 deforms, making the liquid extraction more uniform.

[0052] And when the methylal liquid enters the second annular cover 24, it can enter the fixed box 201 through the connecting pipe 204, which can push the second counterweight 203 to move upward. And under the gravity of the second counterweight 203, the methylal liquid can be smeared on the upper surface of the disc 13 after passing through the sponge block 202, making the thin-layer liquid more comprehensive and uniform, improving the evaporation efficiency, and further improving the refining efficiency of methylal.

[0053] After the complete evaporation is finished, the first electromagnet 605 is energized. After the first electromagnet 605 is energized, it attracts the first iron block 603, making the electric heating plate 15 move downward, and the first spring 606 is compressed. Finally, the steam valve 104 is opened, and all the steam in the tower body 101 is discharged and cooled and collected through an external air extraction device.

Claims

1. A light-removal tower for methylal refining, comprising a tower body (101), wherein a discharge valve (102) is arranged at the bottom of the tower body (101), a liquid inlet valve (103) is fixedly inserted into the side wall of the tower body (101), and a steam valve (104) is fixedly inserted into the side wall of the tower body (101), characterized in that: The top of the tower body (101) is rotatably connected to a rotating tube (11), and the upper end of the rotating tube (11) passes through the top of the tower body (101) and is driven by a driving mechanism; a plurality of stirring blades (12) arranged in an array are fixedly connected to the side wall of the rotating tube (11), and a disk (13) is fixedly sleeved on the side wall of the rotating tube (11); a plurality of first through holes (14) arranged in an array are formed on the top of the disk (13), and an electric heating disk (15) is connected to the bottom of the disk (13) through a lifting mechanism; a plurality of second through holes (16) arranged in an array are formed on the bottom of the electric heating disk (15); a first annular cover (22) is fixedly connected to the inner side wall of the rotating tube (11), a plurality of third through holes (23) arranged in an array are formed on the side wall of the rotating tube (11), and a second annular cover (24) is rotatably connected to the outer side wall of the rotating tube (11), and the side wall of the second annular cover (24) is A plurality of liquid spray holes (25) arranged in an array are provided, and a liquid supply mechanism for supplying liquid into the first annular cover (22) is provided in the rotating tube (11), a coating mechanism for coating liquid is provided on the inner side wall of the tower body (101), and a partition plate (17) is fixedly connected to the inner side wall of the tower body (101), the partition plate (17) is sleeved on the side wall of the rotating tube (11), and a plurality of gas storage boxes (18) arranged in an array are fixedly inserted on the top of the partition plate (17), each of the gas storage boxes (18) is slidably connected with a first counterweight block (19), and the top of the first counterweight block (19) is fixedly connected with a first T-shaped guide rod (21), the side wall of the first T-shaped guide rod (21) is sleeved with a connecting plate (20), and the connecting plate (20) is fixed to the top of the gas storage box (18), and a detection mechanism for detecting the first counterweight block (19) is provided on the top of the gas storage box (18); The liquid supply mechanism comprises a support frame (501) fixedly connected to the top of the tower body (101), and a moving rod (502) is inserted into the top of the support frame (501), the movement of the moving rod (502) is driven by a driving mechanism, and the lower end of the moving rod (502) is rotatably connected to a piston (503), a liquid outlet pipe (504) is fixedly inserted into the top of the piston (503), and the lower end of the liquid outlet pipe (504) penetrates to the bottom of the piston (503), a first one-way valve is arranged in the liquid outlet pipe (504), and the upper end of the liquid outlet pipe (504) and the first ring valve are connected. A hose (505) is fixedly connected between the rotating tube (11) and the strip-shaped cover (22); a strip-shaped opening (506) is provided on the side wall of the rotating tube (11), and a liquid inlet pipe (507) is inserted into the strip-shaped opening (506); the liquid inlet pipe (507) is fixed to the bottom of the piston (503); and a telescopic cover (509) is fixedly connected between the top and bottom of the liquid inlet pipe (507) and the top and bottom of the strip-shaped opening (506); a plurality of liquid inlet holes (508) arranged in an array are provided on the side wall of the liquid inlet pipe (507), and a second one-way valve is provided in the liquid inlet pipe (507).

2. A lightness-removing tower for methylal refining according to claim 1, characterized in that: The smearing mechanism comprises a fixed box (201) fixedly connected to the inner wall of the tower body (101), a sponge block (202) fixedly connected to the bottom of the fixed box (201), a second counterweight block (203) slidably connected inside the fixed box (201), and a connecting pipe (204) fixedly connected between the fixed box (201) and the second annular cover (24).

3. A lightness-removing tower for methylal refining according to claim 1, characterized in that: The detection mechanism comprises a ring (303) fixedly connected to the top of a first T-shaped guide rod (21), and a fixed block (305) is fixedly connected to the top of one of the gas storage boxes (18), a side wall of the fixed block (305) is rotatably connected to a rotating plate (307) via a rotating rod (306), a sensing block (311) is fixedly connected to the bottom of the rotating plate (307), and a first L-shaped block (301) is fixedly connected to the top of one of the gas storage boxes (18), and a proximity switch ( 302), and a sliding groove (309) is provided on the side wall of the rotating plate (307), wherein a first connecting block (304) is fixedly connected to the side wall of one of the first T-shaped guide rods (21), and a first mounting block (308) is fixedly connected to the top of the first connecting block (304), a pushing pin (310) is fixedly connected to the side wall of the first mounting block (308), and the pushing pin (310) is inserted into the sliding groove (309), and a detection component for detecting the rotation of the rotating rod (306) is provided on the side wall of the fixed block (305).

4. A lightness-removing tower for methylal refining according to claim 3, characterized in that: The detection assembly comprises a pointer (401) fixedly connected to a side wall of a rotating rod (306), and an angle mark (402) is provided on the side wall of a fixed block (305), a second L-shaped block (403) is fixedly connected to the side wall of the fixed block (305), and a visual sensor (404) is fixedly inserted into the side wall of the second L-shaped block (403).

5. A lightness-removing tower for methylal refining according to claim 1, characterized in that: The lifting mechanism comprises a U-shaped block (607) fixedly connected to the bottom of the electric heating plate (15), and the bottom of the U-shaped block (607) is fixedly connected to two symmetrically arranged second T-shaped guide rods (601), the side wall of each of the second T-shaped guide rods (601) is sleeved with a first spring (606), and the side wall of the second T-shaped guide rod (601) is sleeved with a slider (602), the side wall of the slider (602) is fixedly connected to a third L-shaped block (604), and the third L-shaped block (604) is fixed to the bottom of the disc (13), the bottom of the U-shaped block (607) is fixedly connected to a first iron block (603), and the top of the slider (602) is fixedly connected to a first electromagnet (605).

6. A lightness-removing tower for methylal refining according to claim 1, characterized in that: The pushing mechanism comprises a moving plate (701) fixedly connected to the top of the moving rod (502), and the bottom of the moving plate (701) is connected to a pushing block (702) via a reset mechanism, the side wall of the rotating tube (11) is fixedly sleeved with a fixing ring (703), and the top of the fixing ring (703) is fixedly connected with a plurality of tapered rods (704) arranged in an array, the movement of the pushing block (702) is pushed by a pushing assembly, and the bottom of the moving plate (701) is fixedly connected with two symmetrically arranged sleeves (513), each of the sleeves (513) is inserted with a sleeve rod (512), and the lower end of the sleeve rod (512) is fixedly connected to a second connecting block (511), the second connecting block (511) is fixed to the side wall of the support frame (501), and the side wall of each sleeve (513) is sleeved with a reset spring (510).

7. A lightness removal tower for methylal refining according to claim 6, characterized in that: The reset mechanism comprises a support plate (801) fixedly connected to the bottom of the moving plate (701), and two symmetrically arranged third T-shaped guide rods (901) are inserted into the side wall of the support plate (801), one end of the third T-shaped guide rod (901) is fixed to the side wall of the pushing block (702), and the side wall of each third T-shaped guide rod (901) is sleeved with a second spring (902).

8. A lightness removal tower for methylal refining according to claim 6, characterized in that: The pushing assembly comprises a second mounting block (802) fixedly connected to the bottom of the support plate (801), a second electromagnet (803) being fixedly connected to the side wall of the second mounting block (802), and a second iron block (804) being fixedly connected to the side wall of the pushing block (702).

9. A lightness removal tower for methylal refining according to claim 1, characterized in that: The driving mechanism comprises a gear ring (1001) fixedly sleeved on the side wall of the rotating tube (11), and an L-shaped plate (1003) is fixedly connected to the top of the tower body (101), a motor (1004) is fixedly connected to the top of the L-shaped plate (1003), a gear (1002) is fixedly connected to the output end of the motor (1004), and the gear (1002) is meshed with the gear ring (1001).

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