High-efficiency catalytic system for caprolactam production

Abstract

The utility model relates to a catalytic system belongs to caprolactam catalysis technical field, specifically a kind of high-efficiency catalytic system for caprolactam production, including box, rotating sleeve pipe is rotatably connected on the box;The utility model is provided with the setting of stirring mechanism, and starting motor drives driving shaft, U-shaped rod and rotating shaft rotation, rotating shaft rotation drives rotating sleeve pipe, fixed cylinder and fixed pipe rotation through two bevel gears, fixed pipe rotation drives one-way outlet pipe and water spray pipe to carry out circumferential rotation, U-shaped rod rotation drives L-shaped slide bar and piston reciprocating movement through connecting rod, and the solution in the bottom of box is extracted into fixed pipe by one-way inlet pipe through piston reciprocating movement, then is introduced into water spray pipe by one-way outlet pipe, then water spray pipe sprays, so that solution can be fully mixed, to improve the mixing effect of solution, solve the solution in the bottom of box and easily precipitate, leading to the problem of uneven solution concentration.

Description

Technical Field

[0001] This utility model relates to the field of caprolactam catalysis technology, and in particular to a high-efficiency catalytic system for caprolactam production. Background Technology

[0002] Caprolactam is an important chemical raw material. In the production process of caprolactam, the efficiency and stability of the catalytic system have a decisive impact on product quality and production efficiency.

[0003] A search of Chinese patent CN214051553U reveals a catalyst metering device for caprolactam processing, relating to the field of catalyst technology. Existing metering devices are impractical and inefficient. The proposed solution includes a housing; a switch is bolted to the outer wall of the housing; a mounting plate is fixed to the lower part of the housing; a tightening bolt is installed through the mounting plate; a feeder is fixed to the upper part of the housing; a transmission device is installed through the housing and located outside the feeder; a tilting device is sleeved on the transmission device; a sliding rod B is fitted inside one end of the tilting device; a limiting plate A is fixed to the bottom end of the sliding rod B; and a sliding rod C is fitted inside the other end of the tilting device; the limiting plate B is fixed to the bottom end of the sliding rod C.

[0004] Based on the above search results and existing technologies, the following findings were made:

[0005] In most existing caprolactam catalysis processes, the solution is stirred by a stirring rod to ensure uniform mixing. However, sedimentation easily occurs at the bottom of the tank, leading to uneven solution concentration and affecting the reaction rate and product quality. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a high-efficiency catalytic system for caprolactam production. The motor drives the water spray pipe to rotate in a circular motion, which stirs the solution. The piston moves back and forth to draw the solution from the bottom of the tank into the fixed pipe through the one-way water inlet pipe, and then guides it into the water spray pipe through the one-way water outlet pipe. Then the water spray pipe sprays out, which allows the solution to be fully mixed, thereby improving the mixing effect of the solution.

[0007] The technical solution to achieve the purpose of this utility model is: a high-efficiency catalytic system for caprolactam production, including a housing, a rotating sleeve rotatably connected to the housing, a fixed cylinder fixedly connected to the bottom end of the rotating sleeve, and further comprising;

[0008] A stirring mechanism, which is located on a fixed cylinder;

[0009] The stirring mechanism includes a fixed pipe fixedly connected to the bottom of a fixed cylinder. A one-way water inlet pipe is fixedly connected to the bottom end of the fixed pipe. Multiple one-way water outlet pipes are fixedly connected to the fixed pipe. One end of each of the multiple one-way water outlet pipes is fixedly connected to a spray pipe. One end of each spray pipe is slidably connected to a movable rod. A motor is fixedly connected to the top of the housing. A drive shaft is fixedly connected to the output end of the motor. A rotating shaft is provided at the end of the drive shaft away from the motor. A U-shaped rod is fixedly connected to the ends of the rotating shaft and the drive shaft that are close to each other. A bevel gear is fixedly connected to the other end of the rotating shaft and the rotating sleeve. The two bevel gears mesh with each other.

[0010] In some embodiments, the inner wall of the rotating sleeve is provided with an L-shaped slide rod, the bottom end of which extends into the fixed cylinder and is rotatably connected to a piston. The piston is slidably connected to the fixed cylinder, and a connecting rod is rotatably connected to one end of the L-shaped slide rod and the U-shaped rod.

[0011] In some embodiments, a return spring is fitted onto each of the multiple movable rods, and the two ends of the return spring are fixedly connected to the water spray pipe and the movable rod, respectively.

[0012] In some embodiments, a fixed plate is fixedly connected to the top of the housing, and a rotating shaft is rotatably connected to the fixed plate.

[0013] In some embodiments, a movable plate is slidably connected to the fixed plate, and the movable plate is fixedly sleeved on the L-shaped slide rod.

[0014] In some embodiments, a feed inlet is fixedly connected to the top of the box, and a discharge outlet is fixedly connected to the bottom of the box.

[0015] Compared with existing technologies, the significant advantages of this invention are:

[0016] Firstly, this utility model, through the setting of a stirring mechanism, starts a motor to drive the drive shaft, U-shaped rod, and rotating shaft to rotate. The rotation of the rotating shaft drives the rotating sleeve to rotate through two bevel gears. The rotation of the rotating sleeve drives the fixed cylinder and fixed pipe to rotate. The rotation of the fixed pipe drives the one-way water outlet pipe and the spray pipe to rotate in a circle, so that the spray pipe stirs the solution. The rotation of the U-shaped rod drives the L-shaped slide rod to move back and forth through the connecting rod. The movement of the L-shaped slide rod drives the piston to move back and forth. The reciprocating movement of the piston draws the solution at the bottom of the tank into the fixed pipe through the one-way water inlet pipe, and then introduces it into the spray pipe through the one-way water outlet pipe. Then the spray pipe sprays out, so that the solution can be fully mixed, thereby improving the mixing effect of the solution.

[0017] Secondly, this invention uses the solution squeezed into the spray pipe to push the movable rod outward. Since the movable rod and the spray pipe can be combined to form a stirring rod, the length of the stirring rod is increased, thus improving the stirring effect.

[0018] This solves the problem of uneven solution concentration caused by easy precipitation at the bottom of the existing tank. Attached Figure Description

[0019] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in one embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the box body provided in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional planar structure of the fixed cylinder provided in one embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the water spray pipe and movable rod provided in one embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 11. Rotating sleeve; 12. L-shaped slide bar; 13. Fixed cylinder; 14. Fixed pipe; 15. One-way water outlet pipe; 16. Water spray pipe; 17. One-way water inlet pipe; 18. Movable rod; 19. Return spring; 110. Piston; 2. Motor; 21. Drive shaft; 22. U-shaped rod; 23. Rotating shaft; 24. Bevel gear; 25. Connecting rod; 26. Fixed plate; 27. Movable plate; 3. Feed inlet; 4. Discharge outlet. Detailed Implementation

[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] This invention provides an improved, highly efficient catalytic system for caprolactam production. The technical solution of this invention is as follows:

[0028] like Figures 1-4As shown, a high-efficiency catalytic system for caprolactam production includes a housing 1, a rotating sleeve 11 rotatably connected to the housing 1, a fixed cylinder 13 fixedly connected to the bottom end of the rotating sleeve 11, and a stirring mechanism located on the fixed cylinder 13. The stirring mechanism includes a fixed pipe 14 fixedly connected to the bottom of the fixed cylinder 13, a one-way water inlet pipe 17 fixedly connected to the bottom end of the fixed pipe 14, multiple one-way water outlet pipes 15 fixedly connected to the fixed pipe 14, a spray pipe 16 fixedly connected to one end of each of the multiple one-way water outlet pipes 15, a movable rod 18 slidably connected to one end of each spray pipe 16, a motor 2 fixedly connected to the top of the housing 1, a drive shaft 21 fixedly connected to the output end of the motor 2, a rotating shaft 23 located at the end of the drive shaft 21 away from the motor 2, and the rotating shaft 23 and the drive shaft 21 located close to each other at the ends. A U-shaped rod 22 is fixedly connected to the rotating shaft 23, and bevel gears 24 are fixedly connected to the other end of the rotating shaft 23 and the rotating sleeve 11. The two bevel gears 24 mesh with each other. Through the setting of the stirring mechanism, the motor 2 drives the drive shaft 21, the U-shaped rod 22 and the rotating shaft 23 to rotate. The rotation of the rotating shaft 23 drives the rotating sleeve 11 to rotate through the two bevel gears 24. The rotation of the rotating sleeve 11 drives the fixed cylinder 13 and the fixed tube 14 to rotate. The rotation of the fixed tube 14 drives the one-way water outlet pipe 15 and the water spray pipe 16 to rotate in a circle, so that the water spray pipe 16 stirs the solution and makes the solution uniformly mixed. The solution squeezed into the water spray pipe 16 will squeeze the movable rod 18 to move outward. Since the movable rod 18 and the water spray pipe 16 can be combined to form a stirring rod, the length of the stirring rod is increased and the stirring effect of the stirring rod is improved.

[0029] like Figure 3 As shown, in one embodiment, the inner wall of the rotating sleeve 11 is provided with an L-shaped slide rod 12. The bottom end of the L-shaped slide rod 12 extends into the fixed cylinder 13 and is rotatably connected to a piston 110. The piston 110 is slidably connected to the fixed cylinder 13. One end of the L-shaped slide rod 12 and the U-shaped rod 22 are rotatably connected to a connecting rod 25. With the setting of the piston 110, the U-shaped rod 22 rotates and drives the L-shaped slide rod 12 to move back and forth through the connecting rod 25. The movement of the L-shaped slide rod 12 drives the piston 110 to move back and forth. The reciprocating movement of the piston 110 draws the solution at the bottom of the tank 1 into the fixed pipe 14 through the one-way water inlet pipe 17, and then introduces it into the spray pipe 16 through the one-way water outlet pipe 15. Then the spray pipe 16 sprays out, so that the solution can be fully mixed, thereby improving the mixing effect of the solution.

[0030] like Figure 4 As shown, in one embodiment, a return spring 19 is sleeved on each of the multiple movable rods 18, and the two ends of the return spring 19 are fixedly connected to the water spray pipe 16 and the movable rod 18, respectively; by setting the return spring 19, the return spring 19 can drive the movable rod 18 to reset.

[0031] like Figure 1As shown, in one embodiment, a fixing plate 26 is fixedly connected to the top of the housing 1, and the rotating shaft 23 is rotatably connected to the fixing plate 26; the setting of the fixing plate 26 improves the stability of the rotating shaft 23.

[0032] like Figure 1 As shown, in one embodiment, a movable plate 27 is slidably connected to the fixed plate 26, and the movable plate 27 is fixedly sleeved on the L-shaped slide rod 12; the stability of the L-shaped slide rod 12 is improved by the setting of the movable plate 27.

[0033] like Figure 1 As shown, in one embodiment, a feed inlet 3 is fixedly connected to the top of the box 1, and a discharge outlet 4 is fixedly connected to the bottom of the box 1; the feed inlet 3 enables the feeding of materials, and the discharge outlet 4 enables the discharging of materials.

[0034] The specific working method is as follows: The motor 2 is started, driving the drive shaft 21, U-shaped rod 22, and rotating shaft 23 to rotate. The rotation of rotating shaft 23 drives the rotating sleeve 11 to rotate via two bevel gears 24. The rotation of rotating sleeve 11 drives the fixed cylinder 13 and fixed pipe 14 to rotate. The rotation of fixed pipe 14 drives the one-way water outlet pipe 15 and spray pipe 16 to rotate in a circular motion, causing the spray pipe 16 to stir the solution. The rotation of U-shaped rod 22 drives the L-shaped slide bar 12 to move back and forth via connecting rod 25. The movement of L-shaped slide bar 12 drives the movable... The piston 110 reciprocates, drawing the solution from the bottom of the tank 1 into the fixed pipe 14 through the one-way inlet pipe 17, and then into the spray pipe 16 through the one-way outlet pipe 15. The spray pipe 16 then sprays out the solution, allowing it to mix thoroughly and improving the mixing effect. The solution squeezed into the spray pipe 16 pushes the movable rod 18 outward. Since the movable rod 18 and the spray pipe 16 can be combined to form a stirring rod, the length of the stirring rod is increased, thus improving the stirring effect.

[0035] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A high-efficiency catalytic system for caprolactam production, comprising a housing (1), wherein a rotating sleeve (11) is rotatably connected to the housing (1), and a fixed cylinder (13) is fixedly connected to the bottom end of the rotating sleeve (11), characterized in that: Also includes; A stirring mechanism is located on a fixed cylinder (13); The stirring mechanism includes a fixed pipe (14) fixedly connected to the bottom of the fixed cylinder (13), a one-way water inlet pipe (17) fixedly connected to the bottom end of the fixed pipe (14), a plurality of one-way water outlet pipes (15) fixedly connected to the fixed pipe (14), a spray pipe (16) fixedly connected to one end of each of the plurality of one-way water outlet pipes (15), a movable rod (18) slidably connected to one end of each of the spray pipes (16), a motor (2) fixedly connected to the top of the box (1), a drive shaft (21) fixedly connected to the output end of the motor (2), a rotating shaft (23) provided at the end of the drive shaft (21) away from the motor (2), a U-shaped rod (22) fixedly connected to the ends of the rotating shaft (23) and the drive shaft (21) that are close to each other, and a bevel gear (24) fixedly connected to the other end of the rotating shaft (23) and the rotating sleeve (11), and the two bevel gears (24) meshing.

2. The high-efficiency catalytic system for caprolactam production according to claim 1, characterized in that: The inner wall of the rotating sleeve (11) is provided with an L-shaped slide rod (12). The bottom end of the L-shaped slide rod (12) extends into the fixed cylinder (13) and is rotatably connected to a piston (110). The piston (110) is slidably connected to the fixed cylinder (13). One end of the L-shaped slide rod (12) and the U-shaped rod (22) are rotatably connected to a connecting rod (25).

3. The high-efficiency catalytic system for caprolactam production according to claim 2, characterized in that: Each of the movable rods (18) is fitted with a return spring (19), and the two ends of the return spring (19) are fixedly connected to the water spray pipe (16) and the movable rod (18) respectively.

4. The high-efficiency catalytic system for caprolactam production according to claim 3, characterized in that: The top of the box (1) is fixedly connected to a fixing plate (26), and the rotating shaft (23) is rotatably connected to the fixing plate (26).

5. The high-efficiency catalytic system for caprolactam production according to claim 4, characterized in that: A movable plate (27) is slidably connected to the fixed plate (26), and the movable plate (27) is fixedly sleeved on the L-shaped slide rod (12).

6. The high-efficiency catalytic system for caprolactam production according to claim 5, characterized in that: The top of the box (1) is fixedly connected to the inlet (3), and the bottom of the box (1) is fixedly connected to the outlet (4).

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