An adipic acid production separation apparatus

Abstract

The present application relates to the technical field of cooling crystallization, and particularly relates to a separation device for adipic acid production, which comprises a roller, a movable plate, a plurality of connecting rods and a plurality of first collecting plates, the roller axis extends along the horizontal direction, the movable plate is rotationally arranged in the roller, and the movable plate rotation axis is parallel to the roller axis, the plurality of connecting rods are fixedly installed on the movable plate, each connecting rod extends along the radial direction of the movable plate rotation axis, and the plurality of first collecting plates are arranged on the movable plate and extend along the radial direction of the movable plate axis. The plurality of first collecting plates are arranged, after the telescopic part continuously drives the solution to move upwards, most of the solution will flow to the first first collecting plate contacted, with the reduction of the solution on the telescopic part, the solution flowing to the first collecting plate reduces the speed, the telescopic part continuously moving upwards will move the remaining solution above the next first collecting plate, the contact area of the solution and the first collecting plate is improved, and then the crystallization efficiency of the solution is improved.

Description

Technical Field

[0001] This invention relates to the field of cooling crystallization technology, and in particular to a separation device for the production of adipic acid. Background Technology

[0002] Adipic acid, also known as adipic acid, is an important organic dicarboxylic acid that can undergo esterification, amidation, acid-base neutralization, or condensation with diamines or diols to form high molecular weight polymers. Adipic acid is a white crystalline solid, and its solubility in water varies considerably with temperature; when the solution temperature rises from 28°C to 78°C, its solubility can increase 20-fold. Therefore, in the production of adipic acid, cooling crystallization is commonly used to extract or purify adipic acid crystals.

[0003] Patent CN116492707B discloses an integrated evaporation and crystallization device, including a support frame, an evaporation chamber, a drum, and a collecting plate. A drive unit is mounted on the support frame. The evaporation chamber is installed on the support frame. The drum is rotated within the evaporation chamber via the drive unit to achieve uniform heating of the solution for easy crystallization. An extension element is provided on the inner wall of the drum to increase friction between the solution and the inner wall, causing the solution to move upwards. The collecting plate is located inside the drum and is V-shaped. The collecting plate includes a first plate and a second plate, with the width of the first plate being smaller than the width of the second plate. The second plate contacts the inner wall of the drum. During use, the solution falls onto the first plate in different orders, resulting in the mixing of solutions at different temperatures. This causes the temperature of the mixed solution to fall below the crystallization temperature, leading to slow crystallization. Summary of the Invention

[0004] Therefore, it is necessary to provide an adipic acid production separation device to address the current problem of low solution crystallization efficiency.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A separation device for adipic acid production includes a support frame, a condenser, a drum, and a collection mechanism. The support frame is equipped with a drive mechanism. The condenser is horizontally positioned on the support frame, with an inlet pipe at the top and an outlet pipe at the bottom. The drum is rotatably mounted in the condenser under the control of the drive mechanism, with its axis extending horizontally. An extension member is provided on the inner wall of the drum, used to move the solution inside the drum upwards. The collection mechanism includes a movable plate, multiple connecting rods, and multiple first collection plates. The movable plate is rotatably mounted in the drum under the control of the drive mechanism, with its rotation axis parallel to the drum axis. Multiple connecting rods are fixedly mounted on the movable plate, each extending radially along the rotation axis of the movable plate, with an included angle between adjacent connecting rods. Multiple first collection plates are mounted on the movable plate, extending radially around the axis of the movable plate. Each connecting rod corresponds to one first collection plate, and each first collection plate rotates around the axis of its corresponding connecting rod. The multiple first collection plates collect the solution at different positions moved by the extension member.

[0007] Preferably, the collecting mechanism further includes a fixed shaft, a second collecting plate, a bracket, and a scraping assembly. The fixed shaft is fixedly installed inside the condensation box, and the roller rotates around the fixed shaft. The second collecting plate is disposed on the movable plate and is rotatably connected to the movable plate. The end of the second collecting plate away from the movable plate contacts the inner wall of the roller. One end of the bracket is disposed on the fixed shaft, and the other end of the bracket is connected to the second collecting plate. The scraping assembly is used to scrape off the crystals on the first collecting plate and the second collecting plate.

[0008] Preferably, the scraping assembly includes a push plate and a third motor. The push plate is sleeved on a fixed shaft and is slidably connected to the fixed shaft. The push plate contacts the upper surface of the second collecting plate. The push plate has multiple through slots, and each first collecting plate is slidably disposed in one through slot. Each through slot corresponds to one first collecting plate, and the size of the through slot is adapted to the size of the first collecting plate. The third motor is mounted on the push plate, and the output shaft of the third motor is perpendicular to the fixed shaft and contacts the fixed shaft.

[0009] Preferably, the movable plate has an internal receiving groove and a circumferential groove, which are connected to the receiving groove. The collecting mechanism also includes a telescopic rod, a rotating plate, a limiting rod, and a second spring. The telescopic rod includes a fixed part and a telescopic part. The fixed part is installed on the movable plate, and the telescopic part extends through the movable plate into the receiving groove and is slidably connected to the movable plate. The rotating plate is movably disposed in the receiving groove, and the telescopic part is hinged to the rotating plate. Multiple connecting rods are located in the same vertical plane, and one end of a connecting rod located in the middle position extends through the movable plate into the receiving groove. This connecting rod that extends through the movable plate is rotatably connected to the rotating plate, and the rotating plate rotates around the axis of the connecting rod that extends through the movable plate. One end of the limiting rod is installed on the rotating plate, and the other end of the limiting rod is installed on one of the first collecting plates. The limiting rod is slidably disposed in the circumferential groove. Multiple second springs are provided and located between two adjacent first collecting plates. The second springs are used to connect two adjacent first collecting plates.

[0010] Preferably, the scraping assembly further includes a positioning plate located at the end of a plurality of first collecting plates and fixedly installed on the periphery of the movable plate. The positioning plate is provided with a plurality of support plates extending radially along the rotation axis of the movable plate. Each support plate corresponds to a through groove and is slidably connected to the through groove. When the telescopic rod is stationary, each support plate and a corresponding first collecting plate are located on the same plane.

[0011] Preferably, the first collecting plate with the largest angle to the second collecting plate among the plurality of first collecting plates is provided with an angle between the first collecting plate and the second collecting plate and the horizontal plane, and the first collecting plate and the second collecting plate are located above the horizontal plane.

[0012] Preferably, the inner wall of the roller is provided with a plurality of grooves, the length direction of the grooves extending along the axis of the roller, the telescopic component includes a plurality of horizontal plates and a plurality of first springs, each horizontal plate is slidably disposed in a groove along the radial direction of the roller, each first spring is disposed in a groove, and the first spring is located between the horizontal plate and the groove.

[0013] Preferably, a cooling system is provided between the outer wall and the inner wall of the drum, and a cooling system is also provided inside each first collecting plate and the second collecting plate. The cooling system is used to cool the solution inside the drum.

[0014] Preferably, the adipic acid production separation device further includes an inner cylinder, one end of which is fixedly installed in a condenser box, and the other end of which is rotatably connected to one end of a drum. The inner cylinder and the drum are connected internally, and the feed pipe is connected to the inner cylinder. Multiple through holes are opened on the circumferential surface of the drum away from the inner cylinder. The through holes are evenly distributed around the axis of the drum. An annular plate is provided inside the drum, which is located between the inner cylinder and the through holes. The discharge pipe is located on the side of the annular plate closer to the through holes.

[0015] Preferably, the drive mechanism includes a first motor, a second motor, a drive wheel, and an internal gear. The first motor is mounted on the condenser box, the drive wheel is mounted on the output shaft of the first motor, the internal gear is mounted on the end of the drum away from the inner cylinder, the center of the internal gear is consistent with the center of the drum, the drive wheel meshes with the internal gear, the second motor is mounted on the condenser box, and the output end of the second motor is connected to the movable plate.

[0016] The beneficial effects of this invention are as follows: The telescopic component allows some solution at the bottom of the drum to detach, increasing the contact area between the solution and the low-temperature gas, thus improving crystallization efficiency. Multiple first collecting plates are provided; as the telescopic component continuously moves the solution upwards, most of the solution flows onto the first collecting plate it contacts. As the amount of solution on the telescopic component decreases, the speed at which the solution flows onto the first collecting plate decreases. The continuously moving telescopic component carries the remaining solution to the top of the next first collecting plate, allowing the solution on the telescopic component to flow onto the next first collecting plate, increasing the contact area between the solution and the first collecting plate, thereby improving the crystallization efficiency. The multiple first collecting plates rotate relative to the movable plate around the connecting rod, accelerating the speed at which the solution falling onto the first collecting plate fully contacts the first collecting plate, while also preventing uneven distribution of the solution on the first collecting plate, which would otherwise prevent the first collecting plate from being fully utilized, further improving the crystallization efficiency of the solution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adipic acid production separation device provided in an embodiment of the present invention;

[0018] Figure 2 A top view of an adipic acid production separation device provided in an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Sectional view along the middle AA direction;

[0020] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 for Figure 2 Sectional view along the BB direction;

[0022] Figure 6 This is a schematic diagram of the structure of a drum in an adipic acid production separation device provided in an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of a drum in an adipic acid production separation device according to an embodiment of the present invention;

[0024] Figure 8This is a schematic diagram of the collection mechanism of an adipic acid production separation device provided in an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram illustrating the cooperation between the first collecting plate and the movable plate in an adipic acid production separation device according to an embodiment of the present invention.

[0026] Figure 10 for Figure 9 A sectional view along the EE direction;

[0027] Figure 11 for Figure 9 A sectional view along the DD direction.

[0028] The components are as follows: 100, support frame; 101, condenser box; 102, drum; 103, feed pipe; 104, discharge pipe; 105, groove; 106, horizontal plate; 107, first spring; 108, first motor; 109, second motor; 110, drive wheel; 111, internal gear; 200, movable plate; 201, connecting rod; 202, first collecting plate; 203, fixed shaft; 204, second collecting plate; 205, receiving groove; 206, slide groove; 207, telescopic rod; 208, rotating plate; 209, limiting rod; 210, second spring; 211, bracket; 212, drain hole; 213, inner cylinder; 214, positioning plate; 215, ring plate; 216, push plate; 217, third motor; 218, through groove; 219, through hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0030] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] like Figures 1 to 11 As shown, this embodiment of the invention provides an adipic acid production separation device, including a support frame 100, a condenser 101, a drum 102, and a collection mechanism. The support frame 100 is equipped with a drive mechanism. The condenser 101 is horizontally arranged on the support frame 100, with a feed pipe 103 at the top and a discharge pipe 104 at the bottom. The solution enters the drum 102 through the feed pipe 103, and crystals in the solution are discharged through the discharge pipe 104. The drum 102 is rotated within the condenser 101 under the control of the drive mechanism, and its axis extends horizontally. The inner wall of the drum 102 is equipped with a telescopic component, which is used to move the solution inside the drum 102 upwards. The collection mechanism includes a movable plate 200, multiple connecting rods 201, and multiple... A first collecting plate 202 is provided. A movable plate 200 is rotatably mounted in a drum 102 under the control of a drive mechanism, and the rotation axis of the movable plate 200 is parallel to the axis of the drum 102. Multiple connecting rods 201 are fixedly installed on the movable plate 200. Each connecting rod 201 extends radially along the rotation axis of the movable plate 200, and there is an included angle between two adjacent connecting rods 201. Multiple first collecting plates 202 are provided on the movable plate 200 and extend radially around the axis of the movable plate 200. Each connecting rod 201 corresponds to one first collecting plate 202, and each first collecting plate 202 is rotatably mounted around the axis of the corresponding connecting rod 201. Multiple first collecting plates 202 are used to collect solutions at different positions driven by the telescopic component.

[0033] The system incorporates a telescopic component, allowing some solution at the bottom of the telescopic roller 102 to detach, increasing the contact area between the solution and the low-temperature gas and improving crystallization efficiency. Multiple first collecting plates 202 are also included. As the telescopic component continuously moves the solution upwards, most of the solution flows onto the first collecting plate 202 it contacts. As the amount of solution on the telescopic component decreases, the speed at which the solution flows onto the first collecting plate 202 slows down. The continuously moving telescopic component carries the remaining solution to the next first collecting plate 202, allowing the solution on the telescopic component to flow onto the next first collecting plate 202, increasing the contact area between the solution and the first collecting plate 202, thereby improving the crystallization efficiency. The multiple first collecting plates 202 rotate relative to the movable plate 200 around the connecting rod 201, accelerating the speed at which the solution falling onto the first collecting plate 202 fully contacts the first collecting plate 202, while also preventing uneven distribution of the solution on the first collecting plate 202, which could lead to insufficient utilization of the first collecting plate 202, further improving the crystallization efficiency.

[0034] In this embodiment, the collection mechanism further includes a fixed shaft 203, a second collection plate 204, a bracket 211, and a scraping assembly. The fixed shaft 203 is fixedly installed inside the condensation box 101, and the roller 102 rotates around the fixed shaft 203. Both ends of the fixed shaft 203 are fixedly connected to the condensation box 101, providing support for the roller 102. The second collection plate 204 is disposed on the movable plate 200 and rotatably connected to the movable plate 200. The end of the second collection plate 204 away from the movable plate 200 contacts the inner wall of the roller 102, scraping away solution crystals on the inner wall of the roller 102. When the roller 102 rotates... The edge of the second collecting plate 204 that first contacts the telescopic component is rounded. The position where the telescopic component contacts the second collecting plate 204 is also rounded to prevent the telescopic component from abutting and getting stuck with the second collecting plate 204. One end of the bracket 211 is set on the fixed shaft 203, and the other end of the bracket 211 is connected to the second collecting plate 204. When the roller 102 rotates, the friction between the second collecting plate 204 and the roller 102 will increase. The bracket 211 is used to fix the second collecting plate 204 to prevent the second collecting plate 204 from shaking. The scraping assembly is used to scrape off the crystals on the first collecting plate 202 and the second collecting plate 204.

[0035] In this embodiment, the adipic acid production separation device also includes an inner cylinder 213. One end of the inner cylinder 213 is fixedly installed in the condenser box 101, and the other end of the inner cylinder 213 is rotatably connected to one end of the drum 102. The inner cylinder 213 is in communication with the inside of the drum 102. The feed pipe 103 is in communication with the inner cylinder 213. After the solution enters the inner cylinder 213 through the feed pipe 103, it will enter the drum 102. Multiple through holes 219 are opened on the circumferential surface of the drum 102 away from the inner cylinder 213. The through holes 219 are evenly distributed around the axis of the drum 102. An annular plate 215 is provided inside the drum 102. The annular plate 215 is located between the inner cylinder 213 and the through holes 219. The discharge pipe 104 is located on the side of the annular plate 215 close to the through holes 219. The solution in the drum 102 will not flow out from the discharge pipe 104 through the through holes 219 due to the obstruction of the annular plate 215.

[0036] In this embodiment, the scraping assembly includes a pusher plate 216 and a third motor 217. The pusher plate 216 is sleeved on the fixed shaft 203 and is slidably connected to the fixed shaft 203. The pusher plate 216 contacts the upper surface of the second collecting plate 204. The pusher plate 216 has multiple through slots 218, and each first collecting plate 202 is slidably disposed in one through slot 218. Each through slot 218 corresponds to one first collecting plate 202, and the size of the through slot 218 is adapted to the size of the first collecting plate 202. When the pusher plate 216 slides along the fixed shaft 203, each through slot 218 will pass through a corresponding first collecting plate 202, and the pusher plate 216 will push away the crystals on the first collecting plate 202. At the same time, the pusher plate 216 will contact the second collecting plate 204 and push away the crystals on the second collecting plate 204. The side of the pusher plate 216 near the discharge pipe 104 is concave. The push plate 216 is recessed towards the movable plate 200 at the contact points with the first collecting plate 202 and the second collecting plate 204. When scraping crystals, the push plate 216 conveys the crystals from the edges of the first collecting plate 202 and the second collecting plate 204 to the movable plate 200, preventing the scraped crystals from accumulating between the ring plate 215 and the push plate 216. The third motor 217 is mounted on the push plate 216. The output shaft of the third motor 217 is perpendicular to the fixed shaft 203 and contacts the fixed shaft 203. A rubber wheel is mounted on the output shaft of the third motor 217. The rubber wheel abuts against the fixed shaft 203. After the third motor 217 drives the rubber wheel to rotate, the rubber wheel drives the push plate 216 to move on the fixed shaft 203 through friction with the fixed shaft 203, thereby scraping the crystals on the first collecting plate 202 and the second collecting plate 204.

[0037] In this embodiment, the movable plate 200 has an internal receiving groove 205, and a sliding groove 206 is formed on the circumferential surface of the movable plate 200. The sliding groove 206 and the receiving groove 205 are connected. The collecting mechanism also includes a telescopic rod 207, a rotating plate 208, a limiting rod 209, and a second spring 210. The telescopic rod 207 includes a fixed part and a telescopic part. The fixed part is installed on the movable plate 200, and the telescopic part extends through the movable plate 200 into the receiving groove 205 and is slidably connected to the movable plate 200. The rotating plate 208 is movably disposed in the receiving groove 205, and the telescopic part is hinged to the rotating plate 208. Multiple connecting rods 201 are located on the same vertical plane. Within the plane, and with the vertical plane located at the center of each first collecting plate 202, when each first collecting plate 202 rotates around its corresponding connecting rod 201, the swing amplitudes of both ends of the first collecting plate 202 are consistent, and one end of a connecting rod 201 located in the middle position penetrates the movable plate 200 and extends into the receiving groove 205. This connecting rod 201 penetrating the movable plate 200 is rotatably connected to the rotating plate 208, and the rotating plate 208 rotates around the axis of the connecting rod 201 penetrating the movable plate 200. The connecting rod 201 penetrating the movable plate 200 is located in the center of the rotating plate 208, and the two ends of the rotating plate 208 move in opposite directions. The horizontal plate 10 6. The length of the first collecting plate 202 in the direction of extending along the axis of the fixed shaft 203 is less than the length of the first collecting plate 202 in the direction of extending along the axis of the fixed shaft 203. When the telescopic rod 207 drives the first collecting plate 202 to swing, the solution on the first collecting plate 202 will not fall from the end of the first collecting plate 202 extending along the axis of the fixed shaft 203. The telescopic rod 207 is electrically controlled. When the telescopic part of the telescopic rod 207 extends and retracts, it can drive the rotating plate 208 to rotate around the connecting rod 201 that passes through the movable plate 200. The angle between the telescopic part and the rotating plate 208 changes. One end of the limiting rod 209 is installed on the rotating plate 208. The other end of 09 is installed on one of the first collecting plates 202. For ease of installation, the limiting rod 209 is rotatably connected to the first collecting plate 202 connected to the connecting rod 201 that passes through the movable plate 200. The limiting rod 209 is slidably disposed in the slide groove 206. Multiple second springs 210 are provided and located between two adjacent first collecting plates 202. The second springs 210 are used to connect two adjacent first collecting plates 202. The springs between two adjacent first collecting plates 202 and the connecting rod 201 are not in the vertical plane of the cylinder. The two adjacent first collecting plates 202 are flexibly connected by the second springs 210.

[0038] In this embodiment, the scraping assembly also includes a positioning plate 214, which is located at the end of a plurality of first collecting plates 202 and is fixedly installed on the circumferential surface of the movable plate 200. The positioning plate 214 is provided with a plurality of support plates, which extend radially along the rotation axis of the movable plate 200. Each support plate corresponds to a through groove 218 and is slidably connected to the through groove 218. When the telescopic rod 207 is stationary, each support plate and a corresponding first collecting plate 202 are located on the same plane. Each first collecting plate 202 and each support plate are provided with magnets that attract each other on their sides. The positions of each first collecting plate 202 and each support plate are relatively stable under the attraction of the magnets, which facilitates the push plate 216 to move from the support plate to the first collecting plate 202.

[0039] In this embodiment, the first collecting plate 202 with the largest angle to the second collecting plate 204 among the multiple first collecting plates 202 has an angle with the horizontal plane, and the first collecting plate 202 and the second collecting plate 204 are located above the horizontal plane. The solution falling from the telescopic member onto the first collecting plate 202 will slide down the slope of the first collecting plate 202 and come into contact with the entire first collecting plate 202. Drainage holes 212 are opened on the multiple first collecting plates 202 near the movable plate 200 to facilitate the drainage of the solution on the first collecting plate 202. The crystals scraped off from the inner wall of the roller 102 by the second collecting plate 204 will slide down the slope of the second collecting plate 204 towards the movable plate 200, so as to facilitate the collection of crystals above the second collecting plate 204.

[0040] In this embodiment, a plurality of grooves 105 are formed on the inner wall of the roller 102. The length direction of the grooves 105 extends along the axis of the roller 102. The telescopic component includes a plurality of horizontal plates 106 and a plurality of first springs 107. Each horizontal plate 106 is slidably disposed in a groove 105 along the radial direction of the roller 102, and each first spring 107 is disposed in a groove 105, with the first spring 107 located between the horizontal plate 106 and the groove 105. After the roller 102 rotates, the plurality of horizontal plates 106 will rotate around the axis of the roller 102. As the horizontal plate 106 rotates and moves upward from the bottom of the drum 102, it can lift a portion of the solution from the bottom of the drum 102 and move it upward toward the first collecting plate 202. Due to the circular motion of the horizontal plate 106, when the horizontal plate 106 lifting the solution moves upward, the solution on the horizontal plate 106 will fall from the edge of the horizontal plate 106. When the horizontal plate 106 moves above the first collecting plate 202, the solution on the horizontal plate 106 will fall onto the first collecting plate 202, and the solution flows along the slope of the first collecting plate 202.

[0041] In this embodiment, a cooling system is provided between the outer wall and the inner wall of the drum 102. A cooling system is also provided inside each first collection plate 202 and the second collection plate 204. The cooling system is used to cool the solution inside the drum 102. The cooling system includes a storage tank and cooling pipes. The storage tank contains low-temperature coolant. The cooling pipes are evenly distributed in the condensation box 101, each first collection plate 202 and the second collection plate 204, and the cooling pipes are connected to the storage tank. The coolant in the storage tank flows around the solution through the cooling pipes to cool the solution inside the drum 102.

[0042] In this embodiment, the drive mechanism includes a first motor 108, a second motor 109, a drive wheel 110, and an internal gear 111. The first motor 108 is mounted on the condenser box 101, the drive wheel 110 is mounted on the output shaft of the first motor 108, the internal gear 111 is mounted on the end of the roller 102 away from the inner cylinder 213, the center of the internal gear 111 is consistent with the center of the roller 102, the drive wheel 110 meshes with the internal gear 111, the second motor 109 is mounted on the condenser box 101, and the output end of the second motor 109 is connected to the movable plate 200.

[0043] In this embodiment, a heating component is provided inside the drum 102. As crystals continuously precipitate from the solution, the concentration of adipic acid in the solution decreases, and the precipitation rate decreases. By heating the solution through the heating component, the solution evaporates, causing the adipic acid in the solution to reach saturation again, thereby improving the crystallization efficiency.

[0044] The working principle and method of the adipic acid production separation device provided in this embodiment are as follows:

[0045] First, a solution containing adipic acid is poured into the inner cylinder 213 through the feed pipe 103. The solution entering the inner cylinder 213 then flows into the drum 102 and remains inside the drum 102 due to the obstruction of the ring plate 215. The heating component is activated to saturate the solution with adipic acid. Then, the first motor 108 and the cooling system are activated. The cooling system ensures that the temperature of the inner cylinder 213 and the first collecting plate 202 reaches the appropriate temperature for adipic acid crystallization. The first motor 108 drives the internal gear 111 to rotate via the drive wheel 110. The internal gear 111 drives the drum 102 to rotate. The rotation of the drum 102 causes the horizontal plate 106 to rotate around the fixed shaft 203. After the horizontal plate 106 exits the solution in the drum 102, it carries some solution upwards with it. When the horizontal plate 106 moves above the first collecting plate 202, the solution carried out by the horizontal plate 106 falls back onto the first collecting plate 202. The solution flows under the action of its slope and is finally discharged from the drain hole 212, mixing again with the solution at the bottom of the drum 102. As the horizontal plate 106 moves upward, less and less solution remains on the horizontal plate 106. The continuously dripping solution falls onto different first collection plates 202. As the drum 102 rotates, adipic acid in the solution adhering to the inner wall of the drum 102 precipitates and adheres to the inner wall of the drum 102. When passing the second collection plate 204, the second collection plate 204 scrapes off the crystals on the inner wall of the drum 102. The fallen crystals slide on the second collection plate 204 and move closer to the movable plate 200. When the horizontal plate 106 passes the second collection plate 204, the horizontal plate 106 is squeezed by the second collection plate 204. The horizontal plate 106 slides in the groove 105 and compresses the first spring 107. When the horizontal plate 106 is separated from the second collection plate 204, the horizontal plate 106 slides out of the groove 105 under the action of the first spring 107.

[0046] When the first motor 108 starts, the second motor 109 and the telescopic rod 207 are started simultaneously. The second motor 109 drives the movable plate 200 to rotate rapidly at a certain angle, which increases the angle between the first collecting plate 202 and the horizontal plane. The solution falling on the first collecting plate 202 flows faster. At this time, the adipic acid content in the solution is high, and although there is less solution adhering to the first collecting plate 202, a large amount of crystals can still precipitate. After the second motor 109 drives the movable plate 200 to rotate rapidly, it then rotates slowly in the opposite direction until the movable plate 200 returns to its initial position. The initial position is where each first collecting plate 202 and the corresponding through groove 218 are in the same plane. During this process, as the concentration of adipic acid in the solution decreases, the slope of the first collecting plate 202 decreases, and the residue of solution on the first collecting plate 202 increases, allowing more crystals to continue to precipitate.

[0047] After the movable plate 200 is reset, the third motor 217 is started. The third motor 217 drives the rubber wheel to rotate. The rubber wheel drives the third motor 217 to move through friction with the fixed shaft 203. The third motor 217 drives the push plate 216 to move. The push plate 216 pushes the crystals on the first collecting plate 202 and the second collecting plate 204. The first collecting plate 202 passes through the through groove 218 on the push plate 216. The push plate 216 continues to move until the crystals on the first collecting plate 202 and the second collecting plate 204 are pushed down to the side of the ring plate 215 near the through hole 219. The crystals are discharged from the discharge pipe 104.

[0048] When the horizontal plate 106 brings the solution to the first collecting plate 202, in order to avoid uneven distribution of the solution on the first collecting plate 202, the telescopic rod 207 is activated. The telescopic rod 207 drives the rotating plate 208 to swing around the connecting rod 201 in the receiving groove 205. The rotating plate 208 drives one of the first collecting plates 202 to swing around its corresponding connecting rod 201 through the limiting rod 209. The first collecting plate 202 drives the adjacent first collecting plate 202 to rotate through the second spring 210.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An adipic acid production separation device, comprising a support frame, a condenser, a drum, and a collection mechanism; the support frame is equipped with a drive mechanism; the condenser is horizontally arranged on the support frame, with a feed pipe at the top and a discharge pipe at the bottom; the drum is rotated within the condenser under the control of the drive mechanism, and the drum axis extends horizontally; the inner wall of the drum is equipped with a telescopic component for moving the solution inside the drum upwards; characterized in that... The collection mechanism includes a movable plate, multiple connecting rods, and multiple first collection plates. The movable plate is rotatably mounted in the drum under the control of a drive mechanism, and the rotation axis of the movable plate is parallel to the axis of the drum. Multiple connecting rods are fixedly mounted on the movable plate, each extending radially along the rotation axis of the movable plate, and there is an included angle between adjacent connecting rods. Multiple first collection plates are mounted on the movable plate and extend radially around the axis of the movable plate. Each connecting rod corresponds to one first collection plate, and each first collection plate is rotatably mounted around the axis of the corresponding connecting rod. The multiple first collection plates are used to collect the solution at different positions driven by the telescopic component.

2. The adipic acid production separation device according to claim 1, characterized in that, The collection mechanism also includes a fixed shaft, a second collection plate, a bracket, and a scraping assembly. The fixed shaft is fixedly installed inside the condensation box, and the roller rotates around the fixed shaft. The second collection plate is set on the movable plate and is rotatably connected to the movable plate. The end of the second collection plate away from the movable plate contacts the inner wall of the roller. One end of the bracket is set on the fixed shaft, and the other end of the bracket is connected to the second collection plate. The scraping assembly is used to scrape off the crystals on the first and second collection plates.

3. The adipic acid production separation device according to claim 2, characterized in that, The scraping assembly includes a push plate and a third motor. The push plate is sleeved on a fixed shaft and is slidably connected to the fixed shaft. The push plate contacts the upper surface of the second collecting plate. The push plate has multiple through slots, and each first collecting plate is slidably disposed in one through slot. Each through slot corresponds to one first collecting plate, and the size of the through slot is adapted to the size of the first collecting plate. The third motor is mounted on the push plate, and the output shaft of the third motor is perpendicular to the fixed shaft and contacts the fixed shaft.

4. The adipic acid production separation apparatus according to claim 3, characterized in that, The movable plate has an internal receiving groove and a circumferential groove that connects to the receiving groove. The collecting mechanism also includes a telescopic rod, a rotating plate, a limiting rod, and a second spring. The telescopic rod includes a fixed part and a telescopic part. The fixed part is installed on the movable plate, and the telescopic part extends through the movable plate into the receiving groove and is slidably connected to the movable plate. The rotating plate is movably disposed in the receiving groove, and the telescopic part is hinged to the rotating plate. Multiple connecting rods are located in the same vertical plane, and one end of a connecting rod located in the middle position extends through the movable plate into the receiving groove. This connecting rod that extends through the movable plate is rotatably connected to the rotating plate, and the rotating plate rotates around the axis of the connecting rod that extends through the movable plate. One end of the limiting rod is installed on the rotating plate, and the other end of the limiting rod is installed on one of the first collecting plates. The limiting rod is slidably disposed in the circumferential groove. Multiple second springs are provided and located between two adjacent first collecting plates. The second springs are used to connect two adjacent first collecting plates.

5. The adipic acid production separation apparatus according to claim 4, characterized in that, The scraping assembly also includes a positioning plate located at the end of multiple first collecting plates and fixedly installed on the circumferential surface of the movable plate. The positioning plate is provided with multiple support plates that extend radially along the rotation axis of the movable plate. Each support plate corresponds to a through groove and is slidably connected to the through groove. When the telescopic rod is stationary, each support plate and its corresponding first collecting plate are located on the same plane.

6. The adipic acid production separation apparatus according to claim 2, characterized in that, Among the multiple first collecting plates, the first collecting plate with the largest included angle with the second collecting plate is provided with an angle between itself and the horizontal plane, and the first collecting plate and the second collecting plate are located above the horizontal plane.

7. The adipic acid production separation apparatus according to claim 1, characterized in that, The inner wall of the roller has multiple grooves, the length of which extends along the axis of the roller. The telescopic component includes multiple horizontal plates and multiple first springs. Each horizontal plate is slidably disposed in a groove along the radial direction of the roller, and each first spring is disposed in a groove, with the first spring located between the horizontal plate and the groove.

8. An adipic acid production separation apparatus according to claim 2, characterized in that, A cooling system is provided between the outer and inner walls of the drum, and a cooling system is also provided inside each first and second collecting plate. The cooling system is used to cool the solution inside the drum.

9. An adipic acid production separation apparatus according to claim 1, characterized in that, It also includes an inner cylinder, one end of which is fixedly installed in the condenser box, and the other end of which is rotatably connected to one end of the drum. The inner cylinder and the drum are connected internally, and the feed pipe is connected to the inner cylinder. Multiple through holes are opened on the circumference of the drum away from the inner cylinder. The through holes are evenly distributed around the axis of the drum. An annular plate is provided inside the drum. The annular plate is located between the inner cylinder and the through holes. The discharge pipe is located on the side of the annular plate closer to the through holes.

10. An adipic acid production separation apparatus according to claim 9, characterized in that, The drive mechanism includes a first motor, a second motor, a drive wheel, and an internal gear. The first motor is mounted on the condenser box, the drive wheel is mounted on the output shaft of the first motor, the internal gear is mounted on the end of the drum away from the inner cylinder, and the center of the internal gear is consistent with the center of the drum. The drive wheel meshes with the internal gear. The second motor is mounted on the condenser box, and the output end of the second motor is connected to the movable plate.

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