Spray tower for producing 4-methyl-5-hydroxyethylthiazole

Abstract

The invention relates to the technical field of spray towers, in particular to a spray tower for producing 4-methyl-5-hydroxyethylthiazole, which comprises a tower body, an exhaust pipe is arranged at the top of the tower body, a spray pipe is communicated with the upper part of the tower body, a discharge pipe and an air inlet pipe are communicated with the bottom of the tower body, and a filler layer is fixedly mounted at the upper part of the tower body. The packing layer is arranged below the spraying pipe, a motor is fixedly installed at the bottom of the tower body, the output end of the motor penetrates through the bottom of the tower body and is fixedly provided with a round rod, a flattening assembly is further arranged on the round rod and located between the spraying pipe and the packing layer, and a scraping assembly is arranged in the middle of the round rod. In the downward movement process of the lantern ring, the two arc-shaped scrapers can form a circular ring capable of being attached to the inner wall of the tower body, absorption liquid can be pushed downwards by the arc-shaped scrapers, the falling speed is increased, the speed of the absorption liquid falling into the bottom of the tower body is increased, and it is ensured that the absorption liquid can effectively make contact with waste gas; absorption liquid is prevented from remaining on the inner wall to affect normal operation of equipment.

Description

Technical Field

[0001] The invention relates to the technical field of spray towers, in particular to a spray tower used for producing 4-methyl-5-hydroxyethylthiazole. Background Art

[0002] In the production process of 4-methyl-5-hydroxyethylthiazole, some harmful gases or dust will be generated, and the spray tower can play an important role at this time. The spray tower can effectively absorb the harmful gases generated in the production process by spraying appropriate absorption liquid, thereby protecting the environment.

[0003] The Chinese utility model patent with the publication number CN221131620U discloses a production spray tower, including a spray tower body, an exhaust pipe fixedly installed on the top of the spray tower body, a motor installed inside the exhaust pipe, a filling box installed at the output end of the motor, a connecting bearing installed outside the filling box, an adsorbent filled inside the filling box, and an exhaust hole opened on the inner wall of the filling box; a connecting pipe installed below the filling box, a connecting hole opened on the inner wall of the connecting pipe, and a universal rotating joint installed below the connecting pipe. The production spray tower can absorb moisture in the exhaust gas by setting the filling box and the adsorbent, avoiding the increase of air humidity and air pollution caused by water vapor discharged with the exhaust gas and causing water waste. At the same time, the filling box is driven by the motor to rotate at a high speed, and the moisture adsorbed in the adsorbent is thrown out by centrifugation, so as to realize the recycling of the adsorbent.

[0004] However, the above prior art still has the following problems:

[0005] There is incomplete contact between the absorption liquid and the gas in the spray tower, and when the spray tower is working, some absorption liquid will adhere to the inner wall of the spray tower. These absorption liquids cannot contact the gas well, thus affecting the absorption efficiency. In order to remove the absorption liquid hanging on the inner wall, the equipment needs to be cleaned and maintained regularly, which increases the maintenance cost and time cost of the equipment and affects the normal operation of the equipment. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in order to solve the problem of incomplete contact between absorption liquid and gas in the spray tower, the present invention provides a spray tower for the production of 4-methyl-5-hydroxyethylthiazole.

[0007] The present invention provides a spray tower for producing 4-methyl-5-hydroxyethylthiazole, comprising a tower body, wherein an exhaust pipe is provided on the top of the tower body, a spray pipe is connected to the upper part of the tower body, a discharge pipe and an air inlet pipe are connected to the bottom of the tower body, a packing layer is fixedly installed on the upper part of the tower body, the packing layer is arranged below the spray pipe, a motor is fixedly installed on the bottom of the tower body, an output end of the motor passes through the bottom of the tower body and a round rod is fixedly installed, a paving assembly is also provided on the round rod, the paving assembly is located between the spray pipe and the packing layer, and a scraping assembly is provided in the middle of the round rod.

[0008] Furthermore, the paving assembly includes a fixed component and a rotating component, the fixed component includes an annular plate, the middle portion of the annular plate is rotatably connected to the round rod, and both sides of the annular plate are fixedly connected to the inner wall of the tower body through a connecting frame.

[0009] Furthermore, a plurality of bevel teeth are fixedly installed at the bottom of the annular plate, and the rotating component includes two arc-shaped plates symmetrically fixedly connected on both sides of the round rod, each of the arc-shaped plates is fixedly connected with a strip frame, and a first rotating shaft is rotatably installed on one end of each strip frame close to the round rod, and a first bevel gear is coaxially fixedly installed on one end of each first rotating shaft close to the round rod, and each of the first bevel gears is correspondingly meshed with a plurality of bevel teeth on the annular plate, and a material stripping plate is fixedly installed on each of the first rotating shafts.

[0010] Furthermore, a conical plate is coaxially fixedly mounted on the top of the round rod.

[0011] Furthermore, a baffle is fixedly mounted on one end of each of the strip frames close to the round rod.

[0012] Furthermore, a reciprocating thread is provided in the middle of the round rod, and the scraper assembly includes a scraper component and a limiting component. The scraper component includes a collar, which is threadedly connected to the middle of the round rod, and a fixing rod is fixedly installed on both sides of the collar. The inner walls on both sides of the tower body are provided with a first sliding groove that slidably cooperates with the end of the fixing rod, and a rotating seat is fixedly installed on the end of each fixing rod away from the round rod, and a second rotating shaft is rotatably connected in each rotating seat, and an arc-shaped scraper is fixedly installed on the end of each second rotating shaft close to the round rod, and a first opening for accommodating the arc-shaped scraper is provided at one end of each fixing rod, a strip lever is fixedly installed on the end of each second rotating shaft away from the round rod, and a plurality of second openings are provided in a circumferential array on each second rotating shaft, and a sliding rod is slidably connected in each second opening, and a ball head is fixedly installed on the end of each sliding rod away from the second rotating shaft, and a first spring is provided between each sliding rod and the corresponding second opening, and a third opening for accommodating the ball head is provided at a position corresponding to the second opening on each rotating seat.

[0013] Furthermore, the limiting component includes four limiting members, two of which are symmetrically arranged at the upper part of the tower body, and the other two of which are symmetrically arranged at the lower part of the tower body, and each limiting member is located in the corresponding first sliding groove.

[0014] Furthermore, each of the limit members includes a fixed seat, each of the fixed seats is fixedly connected to the corresponding first slide slot, each of the fixed seats is rotatably connected to a third rotating shaft, one end of each of the third rotating shafts is fixedly mounted with a shift claw that cooperates with the corresponding bar-shaped shift lever for movement, and a second spring is provided at the rotational connection between each of the third rotating shafts and the corresponding fixed seat.

[0015] Furthermore, a blocking rod is fixedly installed in each of the first sliding grooves.

[0016] Furthermore, a sleeve is fixedly installed at the bottom of the packing layer, and second sliding grooves that are slidably matched with the fixing rod are opened on both sides of the sleeve.

[0017] The beneficial effects of the present invention are:

[0018] 1. The first rotating shaft in the strip frame can rotate around the round rod and drive the material-diverting plate to rotate. The material-diverting plate has a certain elasticity, so that it can fit the upper surface of the packing layer during rotation, and spread the absorption liquid on the upper surface of the packing layer on the packing layer, so that the absorption liquid can better enter the packing layer to form a liquid film, thereby improving the working efficiency of the spraying;

[0019] 2. During the downward movement of the ring, the two arc-shaped scrapers will form a circular ring that can fit the inner wall of the tower body. The absorption liquid will be pushed downward by the arc-shaped scrapers, accelerating the falling speed and increasing the speed at which the absorption liquid falls to the bottom of the tower body, ensuring that the absorption liquid can effectively contact the exhaust gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A stereogram of a spray tower for producing 4-methyl-5-hydroxyethylthiazole provided by the present invention;

[0022] Figure 2 A schematic diagram of the internal structure of a spray tower for producing 4-methyl-5-hydroxyethylthiazole provided by the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0025] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0026] Figure 6 It is a schematic diagram of the first working state of the scraping assembly in the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0028] Figure 8 It is a schematic diagram of the second working state of the scraping assembly in the present invention;

[0029] Fig. 9 for Figure 8 Enlarged view of point E in the middle;

[0030] Fig.10 It is a schematic diagram of the internal structure of the limiting member in the present invention.

[0031] Reference numerals: 1, tower body; 2, paving assembly; 3, scraping assembly; 4, fixed component; 5, rotating component; 6, scraper component; 7, limiting component; 8, first chute; 9, second chute; 11, exhaust pipe; 12, spray pipe; 13, discharge pipe; 14, air inlet pipe; 15, packing layer; 16, motor; 17, round rod; 18, conical plate; 19, sleeve; 41, annular plate; 42, bevel gear; 51, arc plate; 52, strip frame; 53, first rotating shaft; 54. first bevel gear; 55. material shifting plate; 56. baffle plate; 61. collar; 62. fixing rod; 63. rotating seat; 64. second rotating shaft; 65. arc scraper; 66. first opening; 67. strip shifting rod; 68. second opening; 69. sliding rod; 71. stopper; 610. ball head; 611. first spring; 612. third opening; 711. fixing seat; 712. third rotating shaft; 713. shifting claw; 714. second spring; 715. baffle rod. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] In this embodiment, if Figures 1 to 10As shown, a spray tower for the production of 4-methyl-5-hydroxyethylthiazole includes a tower body 1, an exhaust pipe 11 is opened on the top of the tower body 1, a spray pipe 12 is connected to the upper part of the tower body 1, a discharge pipe 13 and an air inlet pipe 14 are connected to the bottom of the tower body 1, a packing layer 15 is fixedly installed on the upper part of the tower body 1, and the packing layer 15 is arranged below the spray pipe 12. The exhaust gas enters from the bottom of the spray tower and then enters the packing layer 15 upward. At the same time, the absorption liquid is sprayed from the spray pipe 12 to form fine droplets. These droplets fall on the packing and form a film in the packing under the tension of the liquid. This is the prior art and will not be described in detail here. A motor 16 is fixedly installed at the bottom of the tower body 1, and the output end of the motor 16 passes through the bottom of the tower body 1 and is fixedly installed with a round rod 17. A paving assembly 2 is also arranged on the round rod 17. The paving assembly 2 is located between the spray pipe 12 and the packing layer 15, and a scraping assembly 3 is arranged in the middle of the round rod 17. The exhaust pipe 11, the spray pipe 12, the discharge pipe 13 and the air inlet pipe 14 are all provided with valves for controlling the inflow and outflow of materials. Then, the absorption liquid is sprayed into the tower body 1 through the spray pipe 12 at the top of the tower body 1. After passing through the packing layer 15, the absorption liquid falls to the bottom of the tower body 1 and accumulates. After the absorption liquid reaches the expected liquid level, the absorption liquid can be continuously discharged from the bottom of the tower body 1 by circulating spraying, and then the absorption liquid is sprayed out from the spray pipe 12. Finally, the gas to be treated is introduced from the air inlet pipe 14. After reacting with the absorption liquid at the bottom of the tower body 1, the gas to be treated continues to move upward, and continues to move upward through the packing layer 15 to the exhaust pipe 11 at the top of the tower body 1 and is discharged. This is the prior art and will not be elaborated here.

[0034] Specifically, the paving assembly 2 includes a fixed component 4 and a rotating component 5. The fixed component 4 includes an annular plate 41. The middle portion of the annular plate 41 is rotatably connected to the round rod 17 and both sides of the annular plate 41 are fixedly connected to the inner wall of the tower body 1 through a connecting frame.

[0035] More specifically, a plurality of bevel teeth 42 are fixedly installed at the bottom of the annular plate 41, and the rotating component 5 includes two arc-shaped plates 51 symmetrically fixedly connected to the two sides of the round rod 17, each arc-shaped plate 51 is fixedly connected to a strip frame 52, and a first rotating shaft 53 is rotatably installed on one end of each strip frame 52 close to the round rod 17, and a first bevel gear 54 is coaxially fixedly installed on one end of each first rotating shaft 53 close to the round rod 17, and each first bevel gear 54 is meshed with the plurality of bevel teeth 42 on the annular plate 41, and a material stripping plate 55 is fixedly installed on each first rotating shaft 53.

[0036] During the spraying operation, the motor 16 is started, and the motor 16 drives the round rod 17 to rotate. At this time, since the paving assembly 2 includes a fixed component 4 and a rotating component 5, the middle part of the annular plate 41 in the fixed component 4 is rotatably connected to the round rod 17, and the two sides of the annular plate 41 are also fixedly connected to the inner wall of the tower body 1 through a connecting frame, and a plurality of bevel teeth 42 are fixedly installed at the bottom of the annular plate 41, so the round rod 17 will drive the strip frame 52 on the arc plate 51 to rotate together when it rotates. During the rotation of the strip frame 52 above the packing layer 15, since the first bevel gear 54 is meshed with the bevel teeth 42, the first rotating shaft 53 in the strip frame 52 can rotate while rotating around the round rod 17, and drive the material stripping plate 55 to rotate. The material stripping plate 55 has a certain elasticity, so that it can fit the upper surface of the packing layer 15 during the rotation process, and spread the absorption liquid on the upper surface of the packing layer 15 on the packing layer 15, so that the absorption liquid can better enter the packing layer to form a liquid film, thereby improving the working efficiency of the spraying.

[0037] Specifically, a conical plate 18 is coaxially fixedly mounted on the top of the round rod 17. The conical plate 18 on the top of the round rod 17 can prevent the absorption liquid from dripping directly on the bevel teeth 42, and the conical plate 18 can also more evenly sprinkle the absorption liquid on the conical plate 18 on the packing layer 15 when the round rod 17 rotates.

[0038] More specifically, a baffle 56 is fixedly mounted on one end of each strip frame 52 close to the round rod 17 . The baffle 56 disposed at one end of the strip frame 52 can prevent the absorption liquid from contacting the first bevel gear 54 .

[0039] Specifically, a reciprocating thread is provided in the middle of the round rod 17, and the scraper assembly 3 includes a scraper component 6 and a limiting component 7. The scraper component 6 includes a collar 61, which is threadedly connected to the middle of the round rod 17. Fixed rods 62 are fixedly installed on both sides of the collar 61. The inner walls on both sides of the tower body 1 are provided with first sliding grooves 8 that slide with the ends of the fixed rods 62. A rotating seat 63 is fixedly installed on the end of each fixed rod 62 away from the round rod 17, and a second rotating shaft 64 is rotatably connected in each rotating seat 63. An arc-shaped scraper 65 is fixedly installed on the end of each second rotating shaft 64 close to the round rod 17. The outer contour of the arc-shaped scraper 65 is similar to the shape of the inner wall of the tower body 1, and a certain gap is left between the two to ensure that the arc-shaped scraper 65 can be in a horizontal state. In order to scrape the absorbed liquid on the inner wall of the tower body 1 downwards, the arc-shaped scraper 65 will not be stuck with the inner wall of the tower body 1 when rotating. A first opening 66 for accommodating the arc-shaped scraper 65 is provided at one end of each fixed rod 62, a strip lever 67 is fixedly installed at one end of each second rotating shaft 64 away from the round rod 17, a plurality of second openings 68 are provided in a circumferential array on each second rotating shaft 64, a sliding rod 69 is slidably connected in each second opening 68, a ball head 610 is fixedly installed at one end of each sliding rod 69 away from the second rotating shaft 64, a first spring 611 is provided between each sliding rod 69 and the corresponding second opening 68, and a third opening 612 for accommodating the ball head 610 is provided at a position corresponding to the second opening 68 on each rotating seat 63.

[0040] More specifically, the limiting component 7 includes four limiting members 71 , two limiting members 71 are symmetrically arranged at the upper part of the tower body 1 , and the other two limiting members 71 are symmetrically arranged at the lower part of the tower body 1 , and each limiting member 71 is located in the corresponding first sliding groove 8 .

[0041] More specifically, each limit member 71 includes a fixed seat 711, each fixed seat 711 is fixedly connected to the corresponding first slide groove 8, a third rotating shaft 712 is rotatably connected in each fixed seat 711, one end of each third rotating shaft 712 is fixedly installed with a shifting claw 713 that cooperates with the corresponding bar-shaped shifting rod 67 for movement, and a second spring 714 is provided at the rotational connection between each third rotating shaft 712 and the corresponding fixed seat 711.

[0042] Since the round rod 17 is also provided with a scraper assembly 3, the scraper assembly 3 includes a scraper component 6 and a limiting component 7. When the round rod 17 rotates, the sleeve ring 61 is driven to slide up and down on the round rod 17 through the reciprocating thread. The sleeve ring 61 drives the two fixed rods 62 to slide in the corresponding first slide groove 8. When the two fixed rods 62 are at the bottom of the corresponding first slide groove 8, the two arc-shaped scrapers 65 are in a horizontal state, forming a circular ring that can fit with the inner wall of the tower body 1. In the process of the two fixed rods 62 moving upward, the strip levers 67 on the two second rotating shafts 64 will contact with the limiting pieces 71 at the lower part of the corresponding first slide groove 8. At this time, the position In the limiting member 71 at the lower part of the first slide groove 8, the upward rotation direction of the pusher claw 713 is limited by the fixed seat 711. After the bar pusher 67 contacts the pusher claw 713, it can only rotate at a certain angle. The arc scraper 65 then tilts in the first opening 66. The ball head 610 on the sliding rod 69 will be separated from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the bar pusher 67 drives the second rotating shaft 64 to rotate, the ball head 610 will be engaged in the next third opening 612 under the reverse thrust of the first spring 611, thereby locking the tilt angle of the arc scraper 65. Therefore, during the upward movement of the collar 61, the two arc scrapers 65 will not form a ring that can fit the inner wall of the tower body 1, and the absorption liquid will not be pushed upward by the arc scraper 65, but will only fall normally, without affecting the absorption liquid falling into the bottom of the tower body 1.

[0043] When the two fixed rods 62 continue to move upward to the top of the first slide groove 8, the bar-shaped levers 67 on the two second rotating shafts 64 will contact the corresponding limiting members 71 on the upper part of the first slide groove 8. At this time, in the limiting member 71 located at the upper part of the first slide groove 8, the downward rotation direction of the push claw 713 is limited by the fixed seat 711. After the bar-shaped lever 67 contacts the push claw 713, the push claw 713 will rotate upward after contact and will not force the arc scraper 65 to rotate an angle. Then, the push claw 713 will be rotated and reset through the third rotating shaft 712 under the action of the second spring 714.

[0044] When the two fixed rods 62 are at the top of the corresponding first slide grooves 8, the two arc scrapers 65 are in an inclined state. During the downward movement of the two fixed rods 62, the bar levers 67 on the two second rotating shafts 64 will contact the corresponding limiting pieces 71 on the upper part of the first slide grooves 8. At this time, in the limiting pieces 71 located at the upper part of the first slide grooves 8, the downward rotation direction of the claw 713 is limited by the fixed seat 711. After the bar lever 67 contacts the claw 713, it can only rotate to a certain angle. The arc scraper 65 then returns to a horizontal state in the first opening 66, and the ball head 610 on the sliding rod 69 will again disengage from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the bar lever 67 drives the second rotating shaft 64 to restore the horizontal angle, the ball head 610 will be engaged into the next third opening 612 under the reverse thrust of the first spring 611, thereby locking the horizontal angle of the arc scraper 65. Therefore, during the downward movement of the ring 61, the two arc-shaped scrapers 65 will form a circular ring that can fit with the inner wall of the tower body 1, and the absorption liquid will be pushed downward by the arc-shaped scraper 65 to accelerate the falling speed and increase the speed at which the absorption liquid falls to the bottom of the tower body 1, ensuring that the absorption liquid can effectively contact the exhaust gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment.

[0045] When the two fixed rods 62 continue to move downward to the bottom of the first slide groove 8, the bar-shaped levers 67 on the two second rotating shafts 64 will contact the corresponding limiting pieces 71 at the lower part of the first slide groove 8. At this time, in the limiting piece 71 located at the lower part of the first slide groove 8, the upward rotation direction of the finger 713 is limited by the fixed seat 711. After the bar-shaped lever 67 contacts the finger 713, the finger 713 will rotate downward after contact and will not force the arc scraper 65 to rotate an angle. Then, the finger 713 will be rotated and reset through the third rotating shaft 712 under the action of the second spring 714. Until the two fixed rods 62 move to the bottom of the corresponding first slide groove 8, the two arc scrapers 65 will always be in a horizontal state to ensure the normal reaction.

[0046] More specifically, a blocking rod 715 is fixedly installed in each first chute 8. The blocking rod 715 arranged in the first chute 8 can prevent the absorption liquid from contacting the limiting component 7.

[0047] More specifically, a sleeve 19 is fixedly mounted at the bottom of the packing layer 15, and second slide grooves 9 are provided on both sides of the sleeve 19 to slide with the fixed rod 62. The sleeve 19 provided at the bottom of the packing layer 15 can prevent the absorption liquid from contacting the threaded connection between the round rod 17 and the collar 61, and the horizontal height of the second slide groove 9 is consistent with the horizontal height of the first slide groove 8, so that the fixed rod 62 can move more stably.

[0048] The working principle of the spray tower used for the production of 4-methyl-5-hydroxyethylthiazole in the present invention is:

[0049] First, valves for controlling the inflow and outflow of materials are provided on the exhaust pipe 11, the spray pipe 12, the discharge pipe 13 and the air inlet pipe 14. Then, the absorption liquid is sprayed into the tower body 1 through the spray pipe 12 at the top of the tower body 1. The absorption liquid falls to the bottom of the tower body 1 and accumulates after passing through the packing layer 15. After the absorption liquid reaches the expected liquid level, the absorption liquid can be continuously discharged from the bottom of the tower body 1 by circulating spraying, and then the absorption liquid is sprayed out from the spray pipe 12. Finally, the gas to be treated is introduced from the air inlet pipe 14. After reacting with the absorption liquid at the bottom of the tower body 1, the gas to be treated continues to move upward, and continues to move upward through the packing layer 15 to the exhaust pipe 11 at the top of the tower body 1 and is discharged. This is the prior art and will not be elaborated here.

[0050] During the spraying operation, the motor 16 is started, and the motor 16 drives the round rod 17 to rotate. At this time, since the paving assembly 2 includes a fixed component 4 and a rotating component 5, the middle part of the annular plate 41 in the fixed component 4 is rotatably connected to the round rod 17, and the two sides of the annular plate 41 are also fixedly connected to the inner wall of the tower body 1 through a connecting frame, and a plurality of bevel teeth 42 are fixedly installed at the bottom of the annular plate 41, so the round rod 17 will drive the strip frame 52 on the arc plate 51 to rotate together when it rotates. During the rotation of the strip frame 52 above the packing layer 15, since the first bevel gear 54 is meshed with the bevel teeth 42, the first rotating shaft 53 in the strip frame 52 can rotate while rotating around the round rod 17, and drive the material stripping plate 55 to rotate. The material stripping plate 55 has a certain elasticity, so that it can fit the upper surface of the packing layer 15 during the rotation process, and spread the absorption liquid on the upper surface of the packing layer 15 on the packing layer 15, so that the absorption liquid can better enter the packing layer to form a liquid film, thereby improving the working efficiency of the spraying.

[0051] The conical plate 18 on the top of the round rod 17 can prevent the absorption liquid from dripping directly onto the bevel gear 42, and the conical plate 18 can also more evenly sprinkle the absorption liquid on the conical plate 18 onto the packing layer 15 when the round rod 17 rotates. The baffle 56 set at one end of the strip frame 52 can prevent the absorption liquid from contacting the first bevel gear 54.

[0052] Since the round rod 17 is also provided with a scraper assembly 3, the scraper assembly 3 includes a scraper component 6 and a limiting component 7. When the round rod 17 rotates, the sleeve ring 61 is driven to slide up and down on the round rod 17 through the reciprocating thread. The sleeve ring 61 drives the two fixed rods 62 to slide in the corresponding first slide groove 8. When the two fixed rods 62 are at the bottom of the corresponding first slide groove 8, the two arc-shaped scrapers 65 are in a horizontal state, forming a circular ring that can fit with the inner wall of the tower body 1. In the process of the two fixed rods 62 moving upward, the strip levers 67 on the two second rotating shafts 64 will contact with the limiting components 71 at the lower part of the corresponding first slide groove 8. At this time, the two fixed rods 62 are located at the bottom of the first slide groove 8. In the limiting member 71 at the lower part of the first slide slot 8, the upward rotation direction of the pusher claw 713 is limited by the fixed seat 711. After the bar pusher 67 contacts the pusher claw 713, it can only rotate at a certain angle. The arc scraper 65 then tilts in the first opening 66. The ball head 610 on the sliding rod 69 will be separated from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the bar pusher 67 drives the second rotating shaft 64 to rotate an angle, the ball head 610 will be engaged in the next third opening 612 under the reverse thrust of the first spring 611, thereby locking the tilt angle of the arc scraper 65. Therefore, during the upward movement of the collar 61, the two arc scrapers 65 will not form a ring that can fit the inner wall of the tower body 1, and the absorption liquid will not be pushed upward by the arc scraper 65, but will only fall normally, without affecting the absorption liquid falling into the bottom of the tower body 1.

[0053] When the two fixed rods 62 continue to move upward to the top of the first slide groove 8, the bar-shaped levers 67 on the two second rotating shafts 64 will contact the corresponding limiting members 71 on the upper part of the first slide groove 8. At this time, in the limiting member 71 located at the upper part of the first slide groove 8, the downward rotation direction of the push claw 713 is limited by the fixed seat 711. After the bar-shaped lever 67 contacts the push claw 713, the push claw 713 will rotate upward after contact and will not force the arc scraper 65 to rotate an angle. Then, the push claw 713 will be rotated and reset through the third rotating shaft 712 under the action of the second spring 714.

[0054] When the two fixed rods 62 are at the top of the corresponding first slide grooves 8, the two arc scrapers 65 are in an inclined state. During the downward movement of the two fixed rods 62, the bar levers 67 on the two second rotating shafts 64 will contact the corresponding limiting pieces 71 on the upper part of the first slide grooves 8. At this time, in the limiting pieces 71 located at the upper part of the first slide grooves 8, the downward rotation direction of the claw 713 is limited by the fixed seat 711. After the bar lever 67 contacts the claw 713, it can only rotate to a certain angle. The arc scraper 65 then returns to a horizontal state in the first opening 66, and the ball head 610 on the sliding rod 69 will again disengage from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the bar lever 67 drives the second rotating shaft 64 to restore the horizontal angle, the ball head 610 will be engaged into the next third opening 612 under the reverse thrust of the first spring 611, thereby locking the horizontal angle of the arc scraper 65. Therefore, during the downward movement of the ring 61, the two arc-shaped scrapers 65 will form a circular ring that can fit with the inner wall of the tower body 1, and the absorption liquid will be pushed downward by the arc-shaped scraper 65, which accelerates the falling speed and increases the speed at which the absorption liquid falls to the bottom of the tower body 1, thereby ensuring that the absorption liquid can effectively contact the exhaust gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment.

[0055] When the two fixed rods 62 continue to move downward to the bottom of the first slide groove 8, the bar-shaped levers 67 on the two second rotating shafts 64 will contact the corresponding limiting pieces 71 at the lower part of the first slide groove 8. At this time, in the limiting piece 71 located at the lower part of the first slide groove 8, the upward rotation direction of the finger 713 is limited by the fixed seat 711. After the bar-shaped lever 67 contacts the finger 713, the finger 713 will rotate downward after contact and will not force the arc scraper 65 to rotate an angle. Then, the finger 713 will be rotated and reset through the third rotating shaft 712 under the action of the second spring 714. Until the two fixed rods 62 move to the bottom of the corresponding first slide groove 8, the two arc scrapers 65 will always be in a horizontal state to ensure the normal reaction.

[0056] The blocking rod 715 arranged in the first slide groove 8 can prevent the absorption liquid from contacting the limiting component 7, the sleeve 19 arranged at the bottom of the packing layer 15 can prevent the absorption liquid from contacting the threaded connection between the round rod 17 and the ring 61, and the horizontal height of the second slide groove 9 is consistent with the horizontal height of the first slide groove 8, so that the fixing rod 62 can move more stably.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spray tower for producing 4-methyl-5-hydroxyethylthiazole, comprising a tower body (1), wherein an exhaust pipe (11) is provided at the top of the tower body (1), a spray pipe (12) is connected to the upper part of the tower body (1), and a discharge pipe (13) and an air inlet pipe (14) are connected to the bottom of the tower body (1), characterized in that: A packing layer (15) is fixedly mounted on the upper part of the tower body (1), and the packing layer (15) is arranged below the spray pipe (12). A motor (16) is fixedly mounted on the bottom of the tower body (1), and the output end of the motor (16) passes through the bottom of the tower body (1) and is fixedly mounted with a round rod (17). A flattening component (2) is also arranged on the round rod (17), and the flattening component (2) is located between the spray pipe (12) and the packing layer (15). A scraping component (3) is arranged in the middle of the round rod (17).

2. The spray tower for producing 4-methyl-5-hydroxyethylthiazole according to claim 1, characterized in that: The paving assembly (2) comprises a fixed component (4) and a rotating component (5), the fixed component (4) comprises an annular plate (41), the middle portion of the annular plate (41) is rotatably connected to the round rod (17), and both sides of the annular plate (41) are fixedly connected to the inner wall of the tower body (1) via a connecting frame.

3. The spray tower for producing 4-methyl-5-hydroxyethylthiazole according to claim 2, characterized in that: A plurality of bevel teeth (42) are fixedly mounted on the bottom of the annular plate (41); the rotating component (5) comprises two arc-shaped plates (51) symmetrically fixedly connected to two sides of the round rod (17); each of the arc-shaped plates (51) is fixedly connected to a strip frame (52); a first rotating shaft (53) is rotatably mounted on one end of each strip frame (52) close to the round rod (17); a first bevel gear (54) is coaxially fixedly mounted on one end of each first rotating shaft (53) close to the round rod (17); each of the first bevel gears (54) is correspondingly meshed with the plurality of bevel teeth (42) on the annular plate (41); and a material stripping plate (55) is fixedly mounted on each of the first rotating shafts (53).

4. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 1, characterized in that: A conical plate (18) is coaxially fixedly mounted on the top of the round rod (17).

5. The spray tower for producing 4-methyl-5-hydroxyethylthiazole according to claim 3, characterized in that: A baffle (56) is fixedly mounted on one end of each strip frame (52) close to the round rod (17).

6. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 1, characterized in that: A reciprocating thread is provided in the middle of the round rod (17), and the scraping assembly (3) comprises a scraper component (6) and a limiting component (7). The scraper component (6) comprises a sleeve (61), and the sleeve (61) is threadedly connected to the middle of the round rod (17). Fixed rods (62) are fixedly installed on both sides of the sleeve (61). The inner walls on both sides of the tower body (1) are provided with first sliding grooves (8) that are slidably matched with the ends of the fixed rods (62). A rotating seat (63) is fixedly installed on the end of each fixed rod (62) away from the round rod (17), and a second rotating shaft (64) is rotatably connected in each rotating seat (63). An arc-shaped scraper (65) is fixedly installed on the end of each second rotating shaft (64) close to the round rod (17). A first opening (66) for accommodating an arc-shaped scraper (65) is provided at one end of the fixed rod (62); a strip-shaped lever (67) is fixedly mounted on the end of each second rotating shaft (64) away from the round rod (17); a plurality of second openings (68) are provided in a circumferential array on each second rotating shaft (64); a sliding rod (69) is slidably connected in each second opening (68); a ball head (610) is fixedly mounted on the end of each sliding rod (69) away from the second rotating shaft (64); a first spring (611) is provided between each sliding rod (69) and the corresponding second opening (68); and a third opening (612) for accommodating the ball head (610) is provided at a position corresponding to the second opening (68) on each rotating seat (63).

7. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 6, characterized in that: The limiting component (7) comprises four limiting members (71), two of which are symmetrically arranged on the upper part of the tower body (1), and the other two of which are symmetrically arranged on the lower part of the tower body (1), and each limiting member (71) is located in a corresponding first sliding groove (8).

8. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 7, characterized in that: Each of the limiting members (71) comprises a fixed seat (711), each of the fixed seats (711) is fixedly connected to the corresponding first sliding groove (8), each of the fixed seats (711) is rotatably connected to a third rotating shaft (712), one end of each of the third rotating shafts (712) is fixedly mounted with a shifting claw (713) that cooperates with the corresponding bar-shaped shifting rod (67) for movement, and a second spring (714) is provided at the rotation connection between each of the third rotating shafts (712) and the corresponding fixed seat (711).

9. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 6, characterized in that: A blocking rod (715) is fixedly installed in each of the first sliding grooves (8).

10. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 6, characterized in that: A sleeve (19) is fixedly mounted on the bottom of the packing layer (15), and second sliding grooves (9) that are slidably matched with the fixing rod (62) are provided on both sides of the sleeve (19).

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