Separation device based on caprolactam ammoniation dehydration product

Abstract

The invention discloses a separation device based on caprolactam ammoniation dehydration products. The separation device comprises a bottom plate, a separation assembly and a cleaning assembly. Compared with the prior art, according to the separation device based on the caprolactam ammoniation dehydration product, the product is fed into the rectifying tower body from the feeding pipe, the product is separated through the separation assembly, and a separation liquid flows into the tower bottom and is subjected to secondary separation through the reboiler body, so that heavy components are efficiently collected; gas returns into the rectifying tower body through a gas return pipe, the gas is conveyed to the condenser body and the separator body through a tower top gas outlet pipe to conduct secondary separation on separated gas, light components are efficiently collected through a refined gas outlet pipe, liquid is discharged into the rectifying tower body through a return pipe, and after long-time use, the separation efficiency of the separation assembly can be greatly reduced. The separation assembly is efficiently cleaned through the cleaning assembly, so that the separation efficiency of the caprolactam ammoniation dehydration product is improved, and stable operation of the rectifying tower is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of distillation towers for caprolactam amination and dehydration products, in particular to a separation device based on caprolactam amination and dehydration products. Background Art

[0002] The products of the caprolactam amination dehydration reaction mainly include 6-aminocapronitrile and caprolactam. The caprolactam amination dehydration reaction is a complex chemical process, in which caprolactam reacts with ammonia under specific conditions and undergoes an amination dehydration step to generate the product 6-aminocapronitrile. However, after this process, a separation device for the caprolactam amination dehydration product is required to separate the caprolactam amination dehydration product to improve the purity of 6-aminocapronitrile, and the light and heavy components can also be classified and collected.

[0003] However, after long-term use, the through holes at the tower plate will be blocked, thereby reducing the separation effect and separation efficiency of the separation device. For this reason, we propose a separation device based on the product of caprolactam amination and dehydration. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a separation device based on the product of caprolactam ammoniation and dehydration. When in use, the product is fed into a distillation tower body from a feed pipe, the product is separated through a separation component, the separated liquid flows into the bottom of the tower and passes through a reboiler body to perform secondary separation on the separated liquid, so as to efficiently collect the heavy components, the gas is returned to the distillation tower body through a return gas pipe, the gas is fed to a condenser body and a separator body through a gas outlet pipe at the top of the tower to perform secondary separation on the separated gas, the light components are efficiently collected through a fine gas outlet pipe, and the liquid is discharged into the distillation tower body through a reflux pipe. After long-term use, the separation efficiency of the separation component will be greatly reduced, and the separation component is efficiently cleaned through a cleaning component, so as to improve the separation efficiency of the caprolactam ammoniation and dehydration product, effectively ensure the stable operation of the distillation tower, and effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a separation device based on the product of caprolactam amination and dehydration, comprising a bottom plate, a separation component and a cleaning component; Two legs are installed on the upper surface of the bottom plate, and a fixing ring is installed on the upper ends of the two legs. A distillation tower body is installed in the fixing ring, and a separation component and a cleaning component are installed in the distillation tower body. A feed pipe is installed on the upper side of the distillation tower body, and a bottom liquid outlet pipe is installed on the lower end of the distillation tower body. A reboiler body is installed on the bottom plate, and the outer end of the bottom liquid outlet pipe is connected to the liquid inlet of the reboiler body. A refined liquid outlet pipe is installed at the liquid outlet of the reboiler body, and a return air pipe is installed at the gas outlet of the reboiler body. The upper end of the return air pipe and the lower end of the distillation tower body are connected. The top of the distillation tower body is connected, a tower top air outlet pipe is installed on the top of the distillation tower body, and a first mounting bracket and a second mounting bracket are also installed on the bottom plate, a condenser body is installed on the first mounting bracket, and a separator body is installed on the second mounting bracket. The outer end of the tower top air outlet pipe is connected to the air inlet of the condenser body, a connecting pipe is installed at the air outlet of the condenser body, and the lower end of the connecting pipe is connected to the inlet of the separator body, a reflux pipe is installed at the liquid outlet of the separator body, and the reflux pipe is connected to the top of the distillation tower body, and a refined air outlet pipe is installed at the air outlet of the separator body.

[0006] Furthermore, the separation component includes an annular plate and two layers of tower plates, an adjusting component is installed in the distillation tower body, the adjusting component is connected to the upper tower plate, a liquid downcomer is provided on the right side of the upper tower plate and the left side of the lower tower plate, an overflow plate is installed on the side of the tower plate close to the liquid downcomer, a circular groove is provided on the tower plate, a limiting groove is provided on the inner wall of the circular groove, a limiting block is installed on the outer side of the annular plate, the limiting block and the limiting groove are slidably connected, a plurality of through holes are evenly provided on the annular plate, a plurality of liquid receiving pipes are installed on the annular plate, the liquid receiving pipes and the through holes correspond one to one, an air duct is installed on the top of the liquid receiving pipe, a bubble is provided on the outside of the liquid receiving pipe, the bottom of the bubble is rotatably connected to the annular plate, a plurality of through grooves are evenly provided on the outer side of the bubble, a mounting cap is installed on the top of the bubble, and the top of the air duct is located inside the mounting cap.

[0007] The product passes through the overflow plate to extend the separation time and flows to the next tower plate through the downcomer. Passing through the double tower plates can effectively improve the separation effect of the product. The gas passes through the liquid receiving pipe and the air duct, leaks out at the through groove and is filtered upward layer by layer. The air duct and the mounting cap can prevent the liquid from flowing down from the through hole to further improve the separation effect of the product.

[0008] Furthermore, the cleaning component includes a first belt, a second belt, a chain and a fixed bracket installed inside the distillation tower body, a second rotating shaft is rotatably installed in the middle of the fixed bracket, a first driving component is installed on the upper surface of the distillation tower body, the first driving component is connected to the second rotating shaft, a driving sprocket is installed on the second rotating shaft, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft and a seventh rotating shaft are rotatably installed on the fixed bracket from left to right, a first driven sprocket is installed on the upper end of the fifth rotating shaft, a second driven sprocket is installed on the upper end of the sixth rotating shaft, and the first driven sprocket is installed on the upper end of the sixth rotating shaft. The driving sprocket and the second driven sprocket are connected by a chain transmission, the first pulley is installed on the fourth rotating shaft, the second pulley is installed on the fifth rotating shaft, the third pulley is installed on the sixth rotating shaft, and the fourth pulley is installed on the seventh rotating shaft. The first pulley and the second pulley are connected by a first belt transmission, and the third pulley and the fourth pulley are connected by a second belt transmission. An annular cleaning brush is installed at the lower end of the fourth rotating shaft, the lower end of the fifth rotating shaft, the lower end of the sixth rotating shaft and the lower end of the seventh rotating shaft, and the third rotating shaft is installed in the middle of the upper annular plate. A shaft, a second cross slide is provided on the upper surface of the third rotating shaft, a second cross slide is installed at the lower end of the second rotating shaft, the second cross slide is slidably installed in the second cross slide, a first cross slide is provided at the lower end of the third rotating shaft, a support frame is installed inside the distillation tower body, an eighth rotating shaft is rotatably installed on the support frame, a first cross slide is installed at the upper end of the eighth rotating shaft, the first cross slide is slidably installed in the first cross slide, a first gear is installed at the lower end of the eighth rotating shaft, a first rotating shaft is installed on the annular plate below, and the upper A second gear is installed at the end, the first gear and the second gear are meshed and connected, a fifth gear is rotatably installed on the second rotating shaft, a third gear is installed on the outside of the upper bubble, a plurality of pins are rotatably installed on the upper surface of the upper annular plate, a fourth gear is installed on the upper end of the pin, the fourth gear is located between the corresponding third gear and the fifth gear, a motor slot is opened in the upper annular plate, a third motor is installed in the motor slot, an output shaft of the third motor is connected to an end of a pin through a third coupling, and an input end of the third motor is electrically connected to an output end of an external controller.The movement of the upper tray can be adjusted by adjusting the assembly to adjust the distance between the two trays, effectively preventing flooding. The first driving assembly drives the second shaft to rotate, the second shaft drives the driving sprocket to rotate, the driving sprocket drives the first driven sprocket and the second driven sprocket to rotate under the action of the chain, the first driven sprocket and the second driven sprocket respectively drive the fifth shaft and the sixth shaft connected to them to rotate, The rotation of the fifth rotating shaft drives the first pulley to rotate, and the rotation of the first pulley drives the second pulley to rotate under the action of the first belt, the rotation of the sixth rotating shaft drives the third pulley to rotate, and the rotation of the third pulley drives the fourth pulley to rotate under the action of the second belt, so that the first pulley, the second pulley, the third pulley and the fourth pulley drive their corresponding annular cleaning brushes to rotate. At the same time, the external controller controls the third motor to work, the third motor drives the pin shaft to rotate, the pin shaft rotation drives the fourth gear to rotate, the fourth gear rotation drives the fifth gear to rotate, the fifth gear rotation drives other fourth gears to rotate, the fourth gear rotation drives the corresponding third gears to rotate, and the third gear rotation drives the bubble to rotate, so as to use the annular cleaning brush to clean the rotating bubble to improve the separation effect and separation efficiency of the product, the second rotating shaft drives the eighth rotating shaft and the first cross slide to rotate, the eighth rotating shaft rotation drives the first gear to rotate, the first gear rotation drives the second gear rotation, the second gear rotation drives the first rotating shaft to rotate, and the first rotating shaft rotation drives the lower annular plate to rotate, so as to improve the separation effect and separation efficiency of the product by changing the position of the bubble.

[0009] Further, the adjustment assembly includes a screw rotatably mounted on the top of the distillation tower body, the lower end of the screw is rotatably connected to the tower plate below, the screw is threadedly connected to the tower plate above, a slider is installed on the outer side of the tower plate above, a slideway is provided on the inner side of the distillation tower body, the slider and the slideway are slidably connected, a second drive assembly is installed on the upper surface of the distillation tower body, the second drive assembly includes a second motor bracket mounted on the distillation tower body, a second motor is mounted on the second motor bracket, the output shaft of the second motor is connected to the upper end of the screw through a second coupling, and the input end of the second motor is electrically connected to the output end of the external controller. The second motor is controlled to work by the external controller, the second motor drives the screw to rotate, and the rotation of the screw drives the tower plate above to move, so as to adjust the distance between the double-layer tower plates.

[0010] Furthermore, the first driving assembly includes a first motor bracket mounted on the distillation tower body, a first motor is mounted on the first motor bracket, an output shaft of the first motor is connected to the upper end of the second rotating shaft through a first coupling, and an input end of the first motor is electrically connected to an output end of an external controller. The first motor is controlled to work by the external controller, and the first motor drives the second rotating shaft to rotate, thereby completing the rotation of the second rotating shaft by electric power.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, the separation device based on the product of caprolactam amination and dehydration is used to feed the product from the feed pipe into the distillation tower body, the product is separated through the separation component, the separation liquid flows into the bottom of the tower and passes through the reboiler body to perform secondary separation on the separation liquid, so as to efficiently collect the heavy components, the gas is returned to the distillation tower body through the return gas pipe, the gas is sent to the condenser body and the separator body through the gas outlet pipe at the top of the tower to perform secondary separation on the separation gas, the light components are efficiently collected through the fine gas outlet pipe, and the liquid is discharged into the distillation tower body through the reflux pipe. After long-term use, the separation efficiency of the separation component will be greatly reduced, and the separation component is efficiently cleaned by the cleaning component, so as to improve the separation efficiency of the caprolactam amination and dehydration product and effectively ensure the stable operation of the distillation tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0013] In the figure: 1 bottom plate, 2 distillation tower body, 3 fixing ring, 4 tower bottom liquid outlet pipe, 5 return air pipe, 6 reboiler body, 7 refined liquid outlet pipe, 8 connecting pipe, 9 condenser body, 10 refined gas outlet pipe, 11 separator body, 12 first mounting bracket, 13 second mounting bracket, 14 support leg, 15 tower top gas outlet pipe, 16 first motor bracket, 17 first motor, 18 second motor, 19 second motor bracket, 20 first cross slide, 21 first pulley, 22 annular cleaning brush, 23 tower plate, 24 support frame, 25 third motor, 26 first gear, 27 second gear, 2 8 bubble cap, 29 mounting cap, 30 first rotating shaft, 31 first driven sprocket, 32 driving sprocket, 33 second driven sprocket, 34 slideway, 35 first cross slide, 36 fixed bracket, 37 overflow plate, 38 limit block, 39 air duct, 40 liquid receiving pipe, 41 annular plate, 42 first belt, 43 second pulley, 44 second rotating shaft, 45 third pulley, 46 third belt, 47 fourth pulley, 48 second cross slide, 49 third rotating shaft, 50 liquid drop port, 51 third gear, 52 fourth gear, 53 fifth gear, 54 lead screw, 55 feeding pipe. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-3 , This embodiment provides a technical solution: a separation device based on the product of caprolactam amination and dehydration, comprising a bottom plate 1, a separation component and a cleaning component; Two legs 14 are installed on the upper surface of the bottom plate 1, and a fixing ring 3 is installed on the upper ends of the two legs 14. A distillation tower body 2 is installed in the fixing ring 3, and a separation component and a cleaning component are installed in the distillation tower body 2. A feed pipe 55 is installed on the upper side of the distillation tower body 2, and a bottom liquid outlet pipe 4 is installed at the lower end of the distillation tower body 2. A reboiler body 6 is installed on the bottom plate 1, and the outer end of the bottom liquid outlet pipe 4 is connected to the liquid inlet of the reboiler body 6. The liquid outlet of the reboiler body 6 is installed with a refined liquid outlet pipe 7, and the gas outlet of the reboiler body 6 is installed with a return gas pipe 5, and the upper end of the return gas pipe 5 is connected to the lower part of the distillation tower body 2. A top gas outlet pipe 15 is installed on the top of the distillation tower body 2, and a first mounting bracket 12 and a second mounting bracket 13 are also installed on the bottom plate 1, a condenser body 9 is installed on the first mounting bracket 12, and a separator body 11 is installed on the second mounting bracket 13, the outer end of the top gas outlet pipe 15 is connected to the air inlet of the condenser body 9, a connecting pipe 8 is installed at the air outlet of the condenser body 9, and the lower end of the connecting pipe 8 is connected to the inlet of the separator body 11, a reflux pipe is installed at the liquid outlet of the separator body 11, the reflux pipe is connected to the top of the distillation tower body 2, and a refined gas outlet pipe 10 is installed at the air outlet of the separator body 11.

[0016] When in use, the product is fed into the distillation tower body 2 from the feed pipe 55, and the product is separated by the separation component. The separated liquid flows into the bottom of the tower and passes through the reboiler body 6 for secondary separation of the separated liquid, so as to efficiently collect the heavy components. The gas is returned to the distillation tower body 2 through the return pipe 5, and the gas is sent to the condenser body 9 and the separator body 11 through the top outlet pipe 15 for secondary separation of the separated gas. The light components are efficiently collected through the fine outlet pipe 10, and the liquid is discharged into the distillation tower body 2 through the reflux pipe. After long-term use, the separation efficiency of the separation component will be greatly reduced. The separation component is efficiently cleaned by the cleaning component to improve the separation efficiency of the caprolactam amination dehydration product and effectively ensure the stable operation of the distillation tower.

[0017] The separation component includes an annular plate 41 and two layers of tower plates 23. An adjustment component is installed in the distillation tower body 2. The adjustment component is connected to the upper tower plate 23. Downcomers 50 are provided on the right side of the upper tower plate 23 and the left side of the lower tower plate 23. An overflow plate 37 is installed on the side of the tower plate 23 close to the downcomer 50. A circular groove is provided on the tower plate 23. A limiting groove is provided on the inner wall of the circular groove. A limiting block 38 is installed on the outer side of the annular plate 41. The limiting block 38 and the limiting groove Sliding connection, a plurality of through holes are evenly provided on the annular plate 41, a plurality of liquid receiving tubes 40 are installed on the annular plate 41, the liquid receiving tubes 40 and the through holes correspond one to one, an air duct 39 is installed on the top of the liquid receiving tube 40, a bubble 28 is provided on the outside of the liquid receiving tube 40, the bottom of the bubble 28 is rotatably connected to the annular plate 41, a plurality of through grooves are evenly provided on the outside of the bubble 28, a mounting cap 29 is installed on the top of the bubble 28, and the top of the air duct 39 is located inside the mounting cap 29.

[0018] The product passes through the overflow plate 37 to extend the separation time, and flows to the next tower plate 23 through the downcomer 50. The double tower plate 23 can effectively improve the separation effect of the product. The gas passes through the liquid receiving pipe 40 and the air duct 39, leaks out at the through groove and is filtered upward layer by layer. The air duct 39 and the mounting cap 29 can prevent the liquid from flowing down from the through hole to further improve the separation effect of the product.

[0019] The cleaning assembly includes a first belt 42, a second belt 46, a chain and a fixed bracket 36 installed inside the distillation tower body 2, a second rotating shaft 44 is rotatably installed in the middle of the fixed bracket 36, a first driving assembly is installed on the upper surface of the distillation tower body 2, the first driving assembly is connected to the second rotating shaft 44, a driving sprocket 32 ​​is installed on the second rotating shaft 44, a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft and a seventh rotating shaft are rotatably installed on the fixed bracket 36 from left to right, a first driven sprocket 31 is installed on the upper end of the fifth rotating shaft, a second driven sprocket 33 is installed on the upper end of the sixth rotating shaft, and the first driven sprocket 31 and the second driven sprocket 33 are installed on the upper end of the sixth rotating shaft. The sprocket 33 is connected through a chain transmission, the first pulley 21 is installed on the fourth rotating shaft, the second pulley 43 is installed on the fifth rotating shaft, the third pulley 45 is installed on the sixth rotating shaft, and the fourth pulley 47 is installed on the seventh rotating shaft. The first pulley 21 and the second pulley 43 are connected through the first belt 42 transmission, and the third pulley 45 and the fourth pulley 47 are connected through the second belt 46 transmission. The lower end of the fourth rotating shaft, the lower end of the fifth rotating shaft, the lower end of the sixth rotating shaft and the lower end of the seventh rotating shaft are all installed with an annular cleaning brush 22, and the third rotating shaft 49 is installed in the middle of the upper annular plate 41. A second cross slide is provided on the upper surface of the third rotating shaft 49, a second cross slide 48 is installed at the lower end of the second rotating shaft 44, and the second cross slide 48 is slidably installed in the second cross slide, a first cross slide 35 is provided at the lower end of the third rotating shaft 49, a support frame 24 is installed inside the distillation tower body 2, an eighth rotating shaft is rotatably installed on the support frame 24, a first cross slide 20 is installed at the upper end of the eighth rotating shaft, and the first cross slide 20 is slidably installed in the first cross slide 35, a first gear 26 is installed at the lower end of the eighth rotating shaft, a first rotating shaft 30 is installed on the lower annular plate 41, and a second gear 26 is installed at the upper end of the first rotating shaft 30 Gear 27, the first gear 26 and the second gear 27 are meshed and connected, a fifth gear 53 is rotatably mounted on the second rotating shaft 44, a third gear 51 is rotatably mounted on the outside of the upper bubble 28, a plurality of pins are rotatably mounted on the upper surface of the upper annular plate 41, a fourth gear 52 is mounted on the upper end of the pin, and the fourth gear 52 is located between the corresponding third gear 51 and the fifth gear 53, a motor slot is opened in the upper annular plate 41, a third motor 25 is mounted in the motor slot, an output shaft of the third motor 25 is connected to the end of a pin through a third coupling, and an input end of the third motor 25 is electrically connected to an output end of an external controller.The movement of the upper tray 23 can be adjusted by the adjustment component to adjust the distance between the two trays 23, effectively preventing flooding. The first driving component drives the second rotating shaft 44 to rotate, and the second rotating shaft 44 drives the driving sprocket 32 ​​to rotate. The driving sprocket 32 ​​rotates under the action of the chain to drive the first driven sprocket 31 and the second driven sprocket 33 to rotate. The first driven sprocket 31 and the second driven sprocket 33 rotate to drive the fifth rotating shaft and the sixth rotating shaft connected to them to rotate. The rotation of the fifth shaft drives the first pulley 21 to rotate. The rotation of the first pulley 21 drives the second pulley 43 to rotate under the action of the first belt 42. The rotation of the sixth shaft drives the third pulley 45 to rotate. The rotation of the third pulley 45 drives the fourth pulley 47 to rotate under the action of the second belt 46. Therefore, the first pulley 21, the second pulley 43, the third pulley 45 and the fourth pulley 47 drive their corresponding annular cleaning brushes 22 to rotate. At the same time, the external controller controls the third motor 25 to work. The work of the third motor 25 drives the pin shaft to rotate. The rotation of the pin shaft drives the fourth gear 52 to rotate. The rotation of the fourth gear 52 drives the fifth gear 53 to rotate. The fifth gear 55 The rotation of the fourth gear 52 drives the other fourth gear 52 to rotate, the rotation of the fourth gear 52 drives the corresponding third gear 51 to rotate, the rotation of the third gear 51 drives the bubble cap 28 to rotate, so that the rotating bubble cap 28 is cleaned by the annular cleaning brush 22 to improve the separation effect and separation efficiency of the product, the second rotating shaft 44 drives the eighth rotating shaft and the first cross slide 20 to rotate, the rotation of the eighth rotating shaft drives the first gear 26 to rotate, the rotation of the first gear 26 drives the second gear 27 to rotate, the rotation of the second gear 27 drives the first rotating shaft 30 to rotate, and the rotation of the first rotating shaft 30 drives the lower annular plate 41 to rotate, so as to improve the separation effect and separation efficiency of the product through the position change of the bubble cap 28.

[0020] The adjustment assembly includes a lead screw 54 rotatably mounted on the top of the distillation tower body 2, the lower end of the lead screw 54 is rotatably connected to the lower tray 23, the lead screw 54 is threadedly connected to the upper tray 23, a slider is mounted on the outer side of the upper tray 23, a slideway 34 is provided on the inner side of the distillation tower body 2, the slider and the slideway 34 are slidably connected, and a second drive assembly is mounted on the upper surface of the distillation tower body 2, the second drive assembly includes a second motor bracket 19 mounted on the distillation tower body 2, a second motor 18 is mounted on the second motor bracket 19, the output shaft of the second motor 18 is connected to the upper end of the lead screw 54 through a second coupling, and the input end of the second motor 18 is electrically connected to the output end of the external controller. The second motor 18 is controlled to work by the external controller, the second motor 18 drives the lead screw 54 to rotate, and the lead screw 54 drives the upper tray 23 to move to adjust the distance between the double-layer trays 23.

[0021] The first driving assembly includes a first motor bracket 16 mounted on the distillation column body 2, a first motor 17 is mounted on the first motor bracket 16, an output shaft of the first motor 17 is connected to the upper end of the second rotating shaft 44 through a first coupling, and an input end of the first motor 17 is electrically connected to an output end of an external controller. The first motor 17 is controlled to work by the external controller, and the first motor 17 drives the second rotating shaft 44 to rotate, thereby completing the rotation of the second rotating shaft 44 by electric power.

[0022] It is worth noting that in this embodiment, the core chip of the external controller is an STC single chip microcomputer, specifically, the model is STC15W204S, and the first motor 17, the second motor 18 and the third motor 25 can be freely configured according to the actual application scenario. The external controller controls the operation of the first motor 17, the second motor 18 and the third motor 25 using the commonly used methods in the prior art.

[0023] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A separation device based on the product of caprolactam ammoniation and dehydration, characterized in that: It comprises a bottom plate (1), a separation component and a cleaning component; Two legs (14) are mounted on the upper surface of the bottom plate (1), and a fixing ring (3) is mounted on the upper ends of the two legs (14). A distillation tower body (2) is mounted in the fixing ring (3), and a separation component and a cleaning component are mounted in the distillation tower body (2). A feed pipe (55) is mounted on the upper side of the distillation tower body (2), and a bottom liquid outlet pipe (4) is mounted on the lower end of the distillation tower body (2). A reboiler body (6) is mounted on the bottom plate (1), and the outer end of the bottom liquid outlet pipe (4) is connected to the liquid inlet of the reboiler body (6). A reboiler outlet pipe (7) is mounted on the liquid outlet of the reboiler body (6). A return air pipe (5) is mounted on the gas outlet of the reboiler body (6), and the upper end of the return air pipe (5) and the lower end of the distillation tower body (2) are connected. The top of the distillation tower body (2) is connected with a tower top gas outlet pipe (15), and the bottom plate (1) is also installed with a first mounting bracket (12) and a second mounting bracket (13), the first mounting bracket (12) is installed with a condenser body (9), and the second mounting bracket (13) is installed with a separator body (11), the outer end of the tower top gas outlet pipe (15) is connected to the gas inlet of the condenser body (9), the gas outlet of the condenser body (9) is installed with a connecting pipe (8), the lower end of the connecting pipe (8) is connected to the inlet of the separator body (11), the liquid outlet of the separator body (11) is installed with a reflux pipe, the reflux pipe is connected to the top of the distillation tower body (2), and the gas outlet of the separator body (11) is installed with a refined gas outlet pipe (10).

2. A separation device based on the product of caprolactam ammoniation and dehydration according to claim 1, characterized in that: The separation assembly comprises an annular plate (41) and two layers of tower plates (23). An adjustment assembly is installed in the distillation tower body (2). The adjustment assembly is connected to the upper tower plate (23). A liquid downcomer (50) is provided on the right side of the upper tower plate (23) and the left side of the lower tower plate (23). An overflow plate (37) is installed on one side of the tower plate (23) close to the liquid downcomer (50). A circular groove is provided on the tower plate (23). A limiting groove is provided on the inner wall of the circular groove. A limiting block (38) is installed on the outer side of the annular plate (41). The limiting block (38) and the limiting groove slide in a direction of rotation. The annular plate (41) is evenly provided with a plurality of through holes, a plurality of liquid receiving tubes (40) are mounted on the annular plate (41), the liquid receiving tubes (40) and the through holes correspond one to one, an air duct (39) is mounted on the top of the liquid receiving tube (40), a bubble cap (28) is disposed outside the liquid receiving tube (40), the bottom of the bubble cap (28) is rotatably connected to the annular plate (41), a plurality of through grooves are evenly disposed on the outside of the bubble cap (28), a mounting cap (29) is mounted on the top of the bubble cap (28), and the top of the air duct (39) is located inside the mounting cap (29).

3. A separation device based on the product of caprolactam ammoniation and dehydration according to claim 1, characterized in that: The cleaning assembly comprises a first belt (42), a second belt (46), a chain and a fixed bracket (36) mounted inside the distillation tower body (2); a second rotating shaft (44) is rotatably mounted in the middle of the fixed bracket (36); a first driving assembly is mounted on the upper surface of the distillation tower body (2); the first driving assembly is connected to the second rotating shaft (44); a driving sprocket (32) is mounted on the second rotating shaft (44); a fourth rotating shaft, a fifth rotating shaft, a sixth rotating shaft and a seventh rotating shaft are rotatably mounted on the fixed bracket (36) from left to right in sequence; a first driven sprocket (31) is mounted on the upper end of the fifth rotating shaft; a second driven sprocket (33) is mounted on the upper end of the sixth rotating shaft; the first driven sprocket (31) is mounted on the upper end of the sixth rotating shaft; and ) and a second driven sprocket (33) are connected by chain transmission, a first pulley (21) is installed on the fourth rotating shaft, a second pulley (43) is installed on the fifth rotating shaft, a third pulley (45) is installed on the sixth rotating shaft, and a fourth pulley (47) is installed on the seventh rotating shaft. The first pulley (21) and the second pulley (43) are connected by a first belt (42) transmission, and the third pulley (45) and the fourth pulley (47) are connected by a second belt (46) transmission. The lower ends of the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft and the seventh rotating shaft are all equipped with an annular cleaning brush (22), and the third rotating shaft is installed in the middle of the upper annular plate (41). (49), a second cross slide groove is provided on the upper surface of the third rotating shaft (49), a second cross slide (48) is installed at the lower end of the second rotating shaft (44), and the second cross slide (48) is slidably installed in the second cross slide groove, a first cross slide groove (35) is provided at the lower end of the third rotating shaft (49), a support frame (24) is installed inside the distillation tower body (2), an eighth rotating shaft is rotatably installed on the support frame (24), a first cross slide (20) is installed at the upper end of the eighth rotating shaft, and the first cross slide (20) is slidably installed in the first cross slide groove (35), a first gear (26) is installed at the lower end of the eighth rotating shaft, and the first rotating shaft (35) is installed on the annular plate (41) below. 0), a second gear (27) is mounted on the upper end of the first rotating shaft (30), the first gear (26) and the second gear (27) are meshingly connected, a fifth gear (53) is rotatably mounted on the second rotating shaft (44), a third gear (51) is mounted on the outside of the upper bubble cap (28), a plurality of pins are rotatably mounted on the upper surface of the upper annular plate (41), a fourth gear (52) is mounted on the upper end of the pin, the fourth gear (52) is located between the corresponding third gear (51) and the fifth gear (53), a motor slot is opened in the upper annular plate (41), a third motor (25) is mounted in the motor slot, an output shaft of the third motor (25) is connected to the end of a pin via a third coupling,The input end of the third motor (25) is electrically connected to the output end of the external controller.

4. A separation device based on the product of caprolactam ammoniation and dehydration according to claim 2, characterized in that: The adjustment component comprises a lead screw (54) rotatably mounted on the top of the distillation tower body (2); the lower end of the lead screw (54) is rotatably connected to the tower plate (23) below; the lead screw (54) is threadedly connected to the tower plate (23) above; a slider is mounted on the outer side of the tower plate (23) above; a slideway (34) is provided on the inner side of the distillation tower body (2); the slider and the slideway (34) are slidably connected; a second drive component is mounted on the upper surface of the distillation tower body (2); the second drive component comprises a second motor bracket (19) mounted on the distillation tower body (2); a second motor (18) is mounted on the second motor bracket (19); an output shaft of the second motor (18) is connected to the upper end of the lead screw (54) via a second coupling; an input end of the second motor (18) is electrically connected to an output end of an external controller.

5. A separation device based on the product of caprolactam ammoniation and dehydration according to claim 3, characterized in that: The first drive assembly comprises a first motor bracket (16) mounted on the distillation tower body (2); a first motor (17) is mounted on the first motor bracket (16); an output shaft of the first motor (17) is connected to an upper end of a second rotating shaft (44) via a first coupling; an input end of the first motor (17) is electrically connected to an output end of an external controller.

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