A spray tower for the production of 4-methyl-5-hydroxyethylthiazole

Abstract

The present invention relates to the technical field of spray towers, and in particular to a spray tower for the production of 4-methyl-5-hydroxyethylthiazole, which includes a tower body. An exhaust pipe is provided at the top of the tower body. A spray pipe is connected to the upper part of the tower body. A discharge pipe and an intake pipe are connected to the bottom of the tower body. A packing layer is fixedly installed in the upper part of the tower body, and the packing layer is arranged below the spray pipe. A motor is fixedly installed at the bottom of the tower body. The output end of the motor penetrates the bottom of the tower body and is fixedly installed with a round rod. A paving component is also arranged on the round rod, and the paving component is located between the spray pipe and the packing layer. A scraping component is arranged in the middle of the round rod. In the process of the collar moving downward in the present invention, the two arc-shaped scrapers will form a 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 of the absorption liquid falling into the bottom of the tower body, ensuring that the absorption liquid can effectively contact the waste gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment.

Description

Technical Field

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

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

[0003] Chinese Utility Model Patent with Publication No. CN221131620U discloses a spray tower for production, including a spray tower body. An exhaust pipe is fixedly installed above the spray tower body. A motor is installed inside the exhaust pipe. An output end of the motor is installed with a filling box body. A connecting bearing is installed outside the filling box body. An adsorbent is filled inside the filling box body. Discharge holes are formed in an inner wall of the filling box body; a communicating pipe is installed below the filling box body. Communicating holes are formed in an inner wall of the communicating pipe. A universal rotary joint is installed below the communicating pipe. By setting the filling box body and the adsorbent, the spray tower for production can absorb the moisture in the discharged gas, avoid the increase of air humidity and air pollution caused by the discharge of water vapor along with the waste gas and the waste of water resources. At the same time, the motor drives the filling box body to rotate at a high speed, and the moisture adsorbed in the adsorbent is thrown out by centrifugal force, realizing the recycling of the adsorbent.

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

[0005] There is an incomplete contact between the absorbent liquid and the gas in the spray tower. And when the spray tower is working, some absorbent liquid will adhere to the inner wall of the spray tower. These absorbent liquids cannot contact the gas well, thus affecting the absorption efficiency. In order to remove the absorbent liquid hanging on the inner wall, it is necessary to regularly clean and maintain the equipment, 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: to solve the problem of incomplete contact between the absorbent liquid and the 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 the production of 4-methyl-5-hydroxyethylthiazole, comprising a tower body. An exhaust pipe is provided at the top of the tower body. A spray pipe is connected to the upper part of the tower body. A discharge pipe and an intake pipe are connected to the bottom of the tower body. A packing layer is fixedly installed in the upper part of the tower body, and the packing layer is arranged below the spray 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 installed with a round rod. A leveling assembly is further arranged on the round rod, and the leveling assembly is located between the spray pipe and the packing layer. A scraping assembly is arranged in the middle of the round rod.

[0008] Furthermore, the leveling assembly includes a fixing part and a rotating part. The fixing part includes an annular plate. The middle 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 connecting frames.

[0009] Even further, a number of bevel gears are fixedly installed at the bottom of the annular plate. The rotating part includes two arc-shaped plates symmetrically and fixedly connected to both sides of the round rod. A strip-shaped frame is fixedly connected to each arc-shaped plate. A first rotating shaft is rotatably installed at one end of each strip-shaped frame close to the round rod. A first bevel gear is coaxially and fixedly installed at one end of each first rotating shaft close to the round rod. Each first bevel gear is correspondingly meshed with a number of bevel gears on the annular plate. A material distributing plate is fixedly installed on each first rotating shaft.

[0010] Furthermore, a conical plate is coaxially and fixedly installed at the top of the round rod.

[0011] Even further, a baffle is fixedly installed at one end of each strip-shaped frame close to the round rod.

[0012] Furthermore, a reciprocating thread is provided in the middle of the round rod. The scraping assembly includes a scraping plate part and a limiting part. The scraping plate part includes a collar. The collar is in threaded connection with the middle of the round rod. Fixed rods are fixedly installed on both sides of the collar. First sliding grooves which are slidably matched with the ends of the fixed rods are provided on both inner walls of the tower body. A rotating seat is fixedly installed at one end of each fixed rod far from the round rod. A second rotating shaft is rotatably connected in each rotating seat. An arc-shaped scraping plate is fixedly installed at one end of each second rotating shaft close to the round rod. A first opening for accommodating the arc-shaped scraping plate is provided at one end of each fixed rod. A strip-shaped shifting rod is fixedly installed at one end of each second rotating shaft far from the round rod. A number of second openings are circumferentially arranged on each second rotating shaft. A sliding rod is slidably connected in each second opening. A ball head is fixedly installed at one end of each sliding rod far from the second rotating shaft. A first spring is arranged between each sliding rod and the corresponding second opening. 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 member includes four limiters. Two of the limiters are symmetrically arranged on the upper part of the tower body, and the other two limiters are symmetrically arranged on the lower part of the tower body. Moreover, each limiter is located in the corresponding first sliding groove.

[0014] Furthermore, each limiter includes a fixed seat. Each fixed seat is fixedly connected to the corresponding first sliding groove. A third rotating shaft is rotatably connected in each fixed seat. One end of each third rotating shaft is fixedly installed with a claw that cooperates with the corresponding strip-shaped shifting lever. A second spring is arranged at the rotational connection of each third rotating shaft and the corresponding fixed seat.

[0015] Furthermore, a stop rod is fixedly installed in each first sliding groove.

[0016] Furthermore, a sleeve is fixedly installed at the bottom of the packing layer. Second sliding grooves that are slidably matched with the fixed rods are formed on both sides of the sleeve.

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

[0018] 1. The first rotating shaft in the strip-shaped frame can rotate around the round rod while rotating itself, and drive the material spreading plate to rotate. The material spreading plate has a certain elasticity, so that it can fit the upper surface of the packing layer during the rotation process, flatten the absorption liquid existing on the upper surface of the packing layer on the packing layer, enable the absorption liquid to better enter the packing layer to form a liquid film, and improve the working efficiency of spraying;

[0019] 2. During the downward movement of the collar, the two arc-shaped scraping plates will form a ring that can fit the inner wall of the tower body. The absorption liquid will be pushed downward by the arc-shaped scraping plates, accelerating the falling speed, increasing the speed of the absorption liquid falling to the bottom of the tower body, ensuring that the absorption liquid can effectively contact the waste 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 embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a three-dimensional view of the spray tower for the production of 4-methyl-5-hydroxyethylthiazole provided by the present invention;

[0022] Figure 2 It is an internal structure schematic diagram of the spray tower for the production of 4-methyl-5-hydroxyethylthiazole provided by the present invention;

[0023] Figure 3 For Figure 2 The enlarged view of part A in

[0024] Figure 4 For Figure 2 The enlarged view of part B in

[0025] Figure 5 For Figure 2 The enlarged view of part C in

[0026] Figure 6 The schematic diagram of the first working state of the scraping component in the present invention;

[0027] Figure 7 For Figure 6 The enlarged view of part D in

[0028] Figure 8 The schematic diagram of the second working state of the scraping component in the present invention;

[0029] Figure 9 For Figure 8 The enlarged view of part E in

[0030] Figure 10 The schematic diagram of the internal structure of the limiting part in the present invention.

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

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

[0033] In this embodiment, as shown in Figures 1 to 10As shown in the figure, a spray tower for the production of 4-methyl-5-hydroxyethylthiazole includes a tower body 1. 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. A discharge pipe 13 and an intake pipe 14 are connected to the bottom of the tower body 1. A packing layer 15 is fixedly installed in the upper part of the tower body 1. The packing layer 15 is arranged below the spray pipe 12. The waste gas enters from the bottom of the spray tower and then moves upward into the packing layer 15. At the same time, the absorbent liquid is sprayed out from the spray pipe 12 to form fine droplets. These droplets fall on the packing and form a film on the packing under the action of the liquid tension. This is the prior art and will not be elaborated here. A motor 16 is fixedly installed at the bottom of the tower body 1. The output end of the motor 16 penetrates the bottom of the tower body 1 and is fixedly installed with a round rod 17. A leveling assembly 2 is also arranged on the round rod 17. The leveling assembly 2 is located between the spray pipe 12 and the packing layer 15. A scraping assembly 3 is arranged in the middle of the round rod 17. Control valves for controlling the entry and exit of materials are provided on the exhaust pipe 11, the spray pipe 12, the discharge pipe 13 and the intake pipe 14. Then, the absorbent liquid is sprayed into the tower body 1 through the spray pipe 12 at the top of the tower body 1. The absorbent liquid falls to the bottom of the tower body 1 after passing through the packing layer 15 and accumulates. After the absorbent liquid reaches the expected liquid level height, the absorbent liquid can be continuously discharged from the bottom of the tower body 1 in a circulating spray manner, then sprayed out from the spray pipe 12, and finally the gas to be treated is introduced through the intake pipe 14. The gas to be treated reacts with the absorbent liquid at the bottom of the tower body 1 and then continues to move upward, passes through the packing layer 15 and continues to move upward 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 leveling assembly 2 includes a fixing component 4 and a rotating component 5. The fixing component 4 includes an annular plate 41. The middle 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 connecting frames.

[0035] More specifically, a number of bevel gears 42 are fixedly installed at the bottom of the annular plate 41. The rotating component 5 includes two arc-shaped plates 51 symmetrically and fixedly connected to both sides of the round rod 17. A strip-shaped frame 52 is fixedly connected to each arc-shaped plate 51. A first rotating shaft 53 is rotatably installed at one end of each strip-shaped frame 52 close to the round rod 17. A first bevel gear 54 is coaxially and fixedly installed at one end of each first rotating shaft 53 close to the round rod 17. Each first bevel gear 54 meshes with a number of bevel gears 42 on the annular plate 41 correspondingly. A material distributing 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 part 4 and a rotating part 5, the middle of the annular plate 41 in the fixed part 4 is rotatably connected to the round rod 17, and both sides of the annular plate 41 are also fixedly connected to the inner wall of the tower body 1 through connecting frames. A number of bevel gears 42 are fixedly installed at the bottom of the annular plate 41. Therefore, when the round rod 17 rotates, it will drive the strip-shaped frame 52 on the arc-shaped plate 51 to rotate together. During the rotation of the strip-shaped frame 52 above the packing layer 15, since the first bevel gear 54 meshes with the bevel gear 42, the first rotating shaft 53 in the strip-shaped frame 52 can rotate around the round rod 17 while rotating itself, and drive the material distributing plate 55 to rotate. The material distributing plate 55 has a certain elasticity, so that it can fit the upper surface of the packing layer 15 during rotation, flatten the absorption liquid existing on the upper surface of the packing layer 15 on the packing layer 15, enable the absorption liquid to better enter the packing layer to form a liquid film, and improve the working efficiency of spraying.

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

[0038] More specifically, a baffle 56 is fixedly installed at one end of each strip-shaped frame 52 close to the round rod 17. The baffle 56 provided at one end of the strip-shaped 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. The scraping assembly 3 includes a scraping plate component 6 and a limiting component 7. The scraping plate component 6 includes a collar 61, and the collar 61 is threadedly connected to the middle of the round rod 17. Fixed rods 62 are fixedly installed on both sides of the collar 61. First chutes 8 that are slidably matched with the ends of the fixed rods 62 are provided on both inner walls of the tower body 1. A rotating seat 63 is fixedly installed at one end of each fixed rod 62 away from the round rod 17. A second rotating shaft 64 is rotatably connected in each rotating seat 63. An arc-shaped scraping plate 65 is fixedly installed at one end of each second rotating shaft 64 close to the round rod 17. The outer contour of the arc-shaped scraping plate 65 is similar to the shape of the inner wall of the tower body 1, and there is a certain gap between the two, ensuring that the arc-shaped scraping plate 65 can scrape the absorbing liquid on the inner wall of the tower body 1 downward in a horizontal state, and the arc-shaped scraping plate 65 will not get stuck with the inner wall of the tower body 1 during rotation. A first opening 66 for accommodating the arc-shaped scraping plate 65 is provided at one end of each fixed rod 62. A strip-shaped shifting rod 67 is fixedly installed at one end of each second rotating shaft 64 away from the round rod 17. A number of second openings 68 are circumferentially arranged 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. A third opening 612 for accommodating the ball head 610 is provided at the position of each rotating seat 63 corresponding to the second opening 68.

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

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

[0042] Since a scraping component 3 is also provided on the round rod 17, the scraping component 3 includes a scraping plate part 6 and a limiting part 7. When the round rod 17 rotates, it will also drive the collar 61 to continuously slide up and down on the round rod 17 through the reciprocating thread. The collar 61 drives the two fixing rods 62 to slide in the corresponding first chute 8. When the two fixing rods 62 are at the bottom of the corresponding first chute 8, the two arc-shaped scraping plates 65 are in a horizontal state, forming a ring that can fit the inner wall of the tower body 1. During the upward movement of the two fixing rods 62, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the lower part of the corresponding first chute 8. At this time, in the limiting member 71 at the lower part of the first chute 8, the upward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, it can only rotate by a certain angle. The arc-shaped scraping plate 65 then tilts in the first opening 66. The ball head 610 on the sliding rod 69 will disengage from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the strip-shaped lever 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 tilting angle of the arc-shaped scraping plate 65. Thus, during the upward movement of the collar 61, the two arc-shaped scraping plates 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-shaped scraping plates 65 and will only fall normally, without affecting the absorption liquid falling to the bottom of the tower body 1.

[0043] During the process of the two fixing rods 62 continuing to move upward to the top of the first chute 8, the strip-shaped levers 67 on the two second rotating shafts 64 will contact the limiting members 71 at the upper part of the corresponding first chute 8. At this time, in the limiting member 71 at the upper part of the first chute 8, the downward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, the claw 713 will rotate upward after contact and will not force the arc-shaped scraping plate 65 to rotate. Then, the claw 713 will rotate 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 chute 8, the two arc-shaped scraping plates 65 are in an inclined state. During the downward movement of the two fixed rods 62, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the upper part of the corresponding first chute 8. At this time, in the limiting member 71 at the upper part of the first chute 8, the downward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, it can only rotate by a certain angle. The arc-shaped scraping plate 65 then returns to the horizontal state within the first opening 66. The ball head 610 on the sliding rod 69 will disengage from the third opening 612 in the rotating seat 63 again and squeeze the first spring 611 into the second opening 68. After the strip-shaped 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-shaped scraping plate 65. Thus, during the downward movement of the collar 61, the two arc-shaped scraping plates 65 will form a ring that can fit the inner wall of the tower body 1. The absorption liquid will be pushed downward by the arc-shaped scraping plate 65, accelerating the falling speed and increasing 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 waste gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment.

[0045] During the process of the two fixed rods 62 continuing to move downward to the bottom of the first chute 8, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the lower part of the corresponding first chute 8. At this time, in the limiting member 71 at the lower part of the first chute 8, the upward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, the claw 713 will rotate downward after contact and will not force the arc-shaped scraping plate 65 to rotate. Then, the claw 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 chute 8, and the two arc-shaped scraping plates 65 will always be in the horizontal state to ensure the normal progress of the reaction.

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

[0047] More specifically, a sleeve 19 is fixedly installed at the bottom of the packing layer 15. Second chutes 9 that are slidably engaged with the fixed rods 62 are provided on both sides of the sleeve 19. The sleeve 19 provided at the bottom of the packing layer 15 can prevent the absorption liquid from contacting the threaded connection of the round rod 17 and the collar 61, and the horizontal height of the second chute 9 is the same as that of the first chute 8, enabling the fixed rod 62 to move more stably.

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

[0049] First, valves for controlling the inlet and outlet of materials are provided on the exhaust pipe 11, the spray pipe 12, the discharge pipe 13, and the 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. 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 height, the absorption liquid can be continuously discharged from the bottom of the tower body 1 in a circulating spray manner, and then sprayed out from the spray pipe 12. Finally, the gas to be treated is introduced through the inlet pipe 14. After the gas to be treated reacts with the absorption liquid at the bottom of the tower body 1, it continues to move upward, passes through the packing layer 15 and continues to move upward 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 part 4 and a rotating part 5, the middle of the annular plate 41 in the fixed part 4 is rotatably connected to the round rod 17, and both sides of the annular plate 41 are also fixedly connected to the inner wall of the tower body 1 through connecting frames. A number of bevel gears 42 are fixedly installed at the bottom of the annular plate 41. Therefore, when the round rod 17 rotates, it will drive the strip-shaped frame 52 on the arc-shaped plate 51 to rotate together. During the rotation of the strip-shaped frame 52 above the packing layer 15, since the first bevel gear 54 meshes with the bevel gear 42, the first rotating shaft 53 in the strip-shaped frame 52 can rotate around the round rod 17 and rotate itself at the same time, and drive the material distributing plate 55 to rotate. The material distributing plate 55 has a certain elasticity, so that it can fit the upper surface of the packing layer 15 during the rotation process, flatten the absorption liquid existing 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, and improve the working efficiency of spraying.

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

[0052] Since a scraping component 3 is further provided on the round rod 17, the scraping component 3 includes a scraping plate part 6 and a limiting part 7. When the round rod 17 rotates, it will also drive the collar 61 to continuously slide up and down on the round rod 17 through the reciprocating thread. The collar 61 drives the two fixing rods 62 to slide in the corresponding first chute 8. When the two fixing rods 62 are at the bottom of the corresponding first chute 8, the two arc-shaped scraping plates 65 are in a horizontal state, forming a ring that can fit against the inner wall of the tower body 1. During the upward movement of the two fixing rods 62, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the lower part of the corresponding first chute 8. At this time, in the limiting member 71 at the lower part of the first chute 8, the upward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, it can only rotate by a certain angle. The arc-shaped scraping plate 65 then tilts in the first opening 66. The ball head 610 on the sliding rod 69 will disengage from the third opening 612 in the rotating seat 63 and squeeze the first spring 611 into the second opening 68. After the strip-shaped lever 67 drives the second rotating shaft 64 to rotate by 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 tilting angle of the arc-shaped scraping plate 65. Therefore, during the upward movement of the collar 61, the two arc-shaped scraping plates 65 will not form a ring that can fit against the inner wall of the tower body 1, and the absorption liquid will not be pushed upward by the arc-shaped scraping plates 65, but will only fall normally, without affecting the absorption liquid falling to the bottom of the tower body 1.

[0053] During the continuous upward movement of the two fixing rods 62 to the top of the first chute 8, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the upper part of the corresponding first chute 8. At this time, in the limiting member 71 at the upper part of the first chute 8, the downward rotation direction of the claw 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the claw 713, the claw 713 will rotate upward after contact and will not force the arc-shaped scraping plate 65 to rotate. Then the claw 713 will rotate 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 chute 8, the two arc-shaped scraping plates 65 are in an inclined state. During the downward movement of the two fixed rods 62, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the upper part of the corresponding first chute 8. At this time, in the limiting member 71 at the upper part of the first chute 8, the downward rotation direction of the pawl 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the pawl 713, it can only rotate by a certain angle. The arc-shaped scraping plate 65 then returns to the horizontal state in the first opening 66. The ball head 610 on the sliding rod 69 will disengage from the third opening 612 in the rotating seat 63 again and squeeze the first spring 611 into the second opening 68. After the strip-shaped lever 67 drives the second rotating shaft 64 to return to 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-shaped scraping plate 65. Thus, during the downward movement of the collar 61, the two arc-shaped scraping plates 65 will form a circular ring that can fit the inner wall of the tower body 1. The absorption liquid will be pushed downward by the arc-shaped scraping plates 65, accelerating the falling speed and increasing 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 waste gas and preventing the absorption liquid from remaining on the inner wall and affecting the normal operation of the equipment.

[0055] During the process of the two fixed rods 62 continuing to move downward to the bottom of the first chute 8, the strip-shaped lever 67 on the two second rotating shafts 64 will contact the limiting member 71 at the lower part of the corresponding first chute 8. At this time, in the limiting member 71 at the lower part of the first chute 8, the upward rotation direction of the pawl 713 is restricted by the fixed seat 711. After the strip-shaped lever 67 contacts the pawl 713, the pawl 713 will rotate downward after contact and will not force the arc-shaped scraping plate 65 to rotate. Then, under the action of the second spring 714, the pawl 713 will rotate and reset through the third rotating shaft 712 until the two fixed rods 62 move to the bottom of the corresponding first chute 8, and the two arc-shaped scraping plates 65 will always be in the horizontal state to ensure the normal progress of the reaction.

[0056] The stop rod 715 provided in the first chute 8 can prevent the absorption liquid from contacting the limiting member 7. The sleeve 19 provided at the bottom of the packing layer 15 can prevent the absorption liquid from contacting the threaded connection of the round rod 17 and the collar 61. And the horizontal height of the second chute 9 is the same as that of the first chute 8, making the fixed rod 62 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and 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), 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), 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 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); 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 installed on 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 on 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); 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).

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: 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).

7. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 1, characterized in that: A blocking rod (715) is fixedly installed in each of the first sliding grooves (8).

8. The spray tower for the production of 4-methyl-5-hydroxyethylthiazole according to claim 1, 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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