A distillation column for processing dimethylaminopropylamine and diisopropanol

Abstract

This utility model relates to the field of distillation column technology, specifically to a distillation column for processing dimethylaminopropylamine and diisopropanol, comprising a distillation column body and a lifting assembly. The lifting assembly includes a lifting slide rail, a lifting mechanism, a lifting platform, and a fall arrestor. When the mounting plate of the distillation column body needs maintenance, the maintenance personnel can quickly move to the damaged area through the lifting assembly for repair. Specifically, the maintenance personnel enter the lifting platform at the bottom of the distillation column body and activate the lifting mechanism through the controller. The lifting mechanism drives the lifting platform to slide upward within the lifting slide rail, thereby raising the lifting platform and sending the maintenance personnel to the damaged area of ​​the distillation column body. At this point, the maintenance personnel can then proceed from the lifting platform to the platform on the outer wall of the distillation column body for repair. Compared to the traditional method of climbing stairs on the outer wall of the distillation column body, the movement is faster and less strenuous, thus shortening the maintenance time of the distillation column body and improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, and in particular to a distillation column for processing dimethylaminopropylamine diisopropanol. Background Technology

[0002] Dimethylaminopropylamine diisopropanol is a low-viscosity, low-odor, hydroxyl-containing reactive catalyst, mainly used in polyether-type polyurethane flexible foams, molded foams, and rigid foams. Traditionally, dimethylaminopropylamine diisopropanol is synthesized continuously using a catalytic distillation column. This new method employs a novel reaction route, eliminating the use of propylene oxide and reducing the process's inherent risks.

[0003] The prior art patent CN218280601U proposes an esterification reaction distillation column. This esterification reaction distillation column uses a theoretical number of 25 trays in the esterification reaction of ethanol and dimethyl carbonate. Compared with the traditional conversion of ethanol and dimethyl carbonate, it greatly improves the conversion rate and production efficiency of ethanol and dimethyl carbonate esterification reaction, and reduces the amount of unreacted material and hazardous waste. In addition, the rectangular perforations in the bubble cap can also disperse the gas introduced below the column body of the tray section into several small bubbles, thereby increasing the reaction area between the reaction liquid and gas. Furthermore, this utility model has installation and maintenance holes on one side of the tray, which allows operators to directly install or maintain the tray, thereby reducing the difficulty and labor of operators in installing and maintaining the tray.

[0004] However, when the aforementioned distillation column needs maintenance due to blockage of the mounting trays or the gas risers on the trays, maintenance personnel need to move to the damaged area via stairs or ladders erected on the outer surface of the catalytic distillation column to repair or maintain the column. This process of moving to the corresponding location via stairs or ladders is time-consuming and thus affects the efficiency of maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a distillation column for the processing of dimethylaminopropylamine and diisopropanol, which aims to solve the problem that when traditional distillation columns need maintenance, maintenance personnel have to climb the stairs built on the outer surface of the catalytic distillation column to reach the damaged area, which is time-consuming and affects the efficiency of maintenance.

[0006] To achieve the above objectives, this utility model provides a distillation column for processing dimethylaminopropylamine and diisopropanol, comprising a distillation column body and a lifting assembly. The lifting assembly includes a lifting slide rail, a lifting mechanism, a lifting platform, and a fall arrestor. The lifting slide rail is fixedly connected to the distillation column body and is located on the outer wall of the distillation column body. The lifting platform is slidably connected to the lifting slide rail and is located on one side of the lifting slide rail. The lifting mechanism is mounted on one side of the lifting slide rail and the lifting platform. The fall arrestor is mounted on the side of the lifting platform near the lifting slide rail.

[0007] The lifting mechanism includes a lifting motor, pulleys, winding rollers, and lifting steel ropes. The pulleys are mounted on both sides of the lifting rail, the lifting motor is mounted on the bottom of the lifting rail, the winding rollers are fixedly connected to the output end of the lifting motor and located on one side of the lifting motor, and the lifting steel ropes are mounted between the pulleys and the winding rollers.

[0008] The lifting platform includes a lifting platform, a guardrail, and a side-opening door. The lifting platform is connected to the lifting steel cable and slidably connected to the lifting slide rail, and is located on one side of the lifting slide rail. The guardrail is fixedly connected to the lifting platform and is located on the top of the lifting platform. The side-opening door is rotatably disposed on the side of the guardrail near the distillation column body.

[0009] The fall arrestor includes a drive cylinder and a brake plate. The drive cylinder is fixedly connected to the lifting platform and located at the bottom of the lifting platform. The brake plate is fixedly connected to the output end of the drive cylinder and located on one side of the output end of the drive cylinder.

[0010] The brake plate includes a clamping plate and a friction plate. The clamping plate is fixedly connected to the output end of the drive cylinder and is located on one side of the output end of the drive cylinder. The friction plate is detachably connected to the clamping plate and is located on the side of the clamping plate away from the drive cylinder.

[0011] This invention relates to a distillation column for processing dimethylaminopropylamine diisopropanol. The column body is used to produce dimethylaminopropylamine diisopropanol (existing technology). When the mounting plates of the distillation column body require maintenance, the maintenance personnel can quickly move to the damaged area via the lifting assembly for repair. Specifically, the fall arrestor is provided to protect the lifting platform from falls and ensure the safety of the maintenance personnel. The maintenance personnel enter the lifting platform at the bottom of the distillation column body and activate the lifting mechanism via the controller, causing the lifting mechanism to operate and drive the distillation column. The lifting platform slides upward within the lifting rail, thereby raising the platform and transporting the maintenance personnel to the damaged area of ​​the distillation column. The maintenance personnel then proceed from the lifting platform to the platform on the outer wall of the distillation column for repairs. Compared to the traditional method of climbing stairs on the outer wall of the distillation column, this movement is faster and less strenuous, thus shortening the repair time and improving efficiency. This solves the problem that traditionally, when a distillation column needs repair, maintenance personnel have to climb stairs erected on the outer surface of the catalytic distillation column to reach the damaged area, which is time-consuming and inefficient. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure of a distillation column for processing dimethylaminopropylamine and diisopropanol according to this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of a distillation column for processing dimethylaminopropylamine and diisopropanol according to this utility model from another direction.

[0015] Figure 3 yes Figure 1 A magnified view of detail A.

[0016] Figure 4 yes Figure 2 A magnified view of detail B.

[0017] In the diagram: 1-Distillation column body, 2-Lifting assembly, 21-Lifting slide rail, 22-Lifting mechanism, 23-Lifting platform, 24-Fall arrestor, 221-Lifting motor, 222-Pulley, 223-Winding roller, 224-Lifting steel rope, 231-Lifting platform, 232-Guard rail, 233-Side door panel, 241-Drive cylinder, 242-Brake plate, 2421-Clamping plate, 2422-Friction plate. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a distillation column for processing dimethylaminopropylamine and diisopropanol, including a distillation column body 1 and a lifting assembly 2. The lifting assembly 2 includes a lifting slide rail 21, a lifting mechanism 22, a lifting platform 23, and a fall arrestor 24. The lifting slide rail 21 is fixedly connected to the distillation column body 1 and is located on the outer wall of the distillation column body 1. The lifting platform 23 is slidably connected to the lifting slide rail 21 and is located on one side of the lifting slide rail 21. The lifting mechanism 22 is mounted on one side of the lifting slide rail 21 and the lifting platform 23. The fall arrestor 24 is mounted on the side of the lifting platform 23 near the lifting slide rail 21.

[0020] In this embodiment, the distillation column body 1 is used to produce dimethylaminopropylamine diisopropanol (existing technology). When the mounting plates of the distillation column body 1 need maintenance, the maintenance personnel can quickly move to the damaged area via the lifting assembly 2 for repair. Specifically, the fall arrestor 24 is used to protect the lifting platform 23 from falls, ensuring the safety of the maintenance personnel. The maintenance personnel enter the lifting platform 23 from the bottom of the distillation column body 1 and activate the lifting mechanism 22 via the controller, causing the lifting mechanism 22 to operate and drive the lifting platform 23 to the desired position. The lifting platform 23 is raised by sliding upwards within the lifting slide rail 21, thus transporting the maintenance personnel to the damaged area of ​​the distillation column body 1. At this point, the maintenance personnel can then proceed from the lifting platform 23 to the platform on the outer wall of the distillation column body 1 for maintenance. Compared to the traditional method of climbing the stairs on the outer wall of the distillation column body 1, this movement is faster and less strenuous, thereby shortening the maintenance time of the distillation column body 1 and improving maintenance efficiency. This solves the problem that when a traditional distillation column needs maintenance, maintenance personnel have to climb the stairs erected on the outer surface of the catalytic distillation column to reach the damaged area, which is time-consuming and affects maintenance efficiency.

[0021] Furthermore, the lifting mechanism 22 includes a lifting motor 221, a pulley 222, a winding roller 223, and a lifting steel rope 224. The pulley 222 is mounted on both sides of the lifting slide rail 21, the lifting motor 221 is mounted on the bottom of the lifting slide rail 21, the winding roller 223 is fixedly connected to the output end of the lifting motor 221 and is located on one side of the lifting motor 221, and the lifting steel rope 224 is mounted between the pulley 222 and the winding roller 223.

[0022] In this embodiment, the lifting motor 221 is controlled by the controller to drive the winding roller 223 to rotate in both directions. When the winding roller 223 rotates in the forward direction, the lifting steel rope 224 is wound around it, and under the action of the pulley 222, the lifting platform 23 is pulled up, causing the lifting platform 23 to slide upward within the lifting slide rail 21, thus lifting the lifting platform 23. Conversely, when the winding roller 223 rotates in the reverse direction, the lifting steel rope 224 is unwound, and the lifting platform 23 is lowered under the action of the pulley 222.

[0023] Furthermore, the lifting platform 23 includes a lifting platform 231, a guardrail 232, and a side-opening door 233. The lifting platform 231 is connected to the lifting steel cable 224 and slidably connected to the lifting slide rail 21, and is located on one side of the lifting slide rail 21. The guardrail 232 is fixedly connected to the lifting platform 231 and is located on the top of the lifting platform 231. The side-opening door 233 is rotatably disposed on the side of the guardrail 232 near the distillation column body 1.

[0024] In this embodiment, the lifting platform 231 provides installation conditions for the guardrail 232 and the side-opening door panel 233. The guardrail 232 is used to protect the maintenance personnel when the lifting platform 231 is raised or lowered. The side-opening door panel 233 can be flipped open to allow the maintenance personnel to enter and exit the lifting platform 231.

[0025] Furthermore, the fall arrestor 24 includes a drive cylinder 241 and a brake plate 242. The drive cylinder 241 is fixedly connected to the lifting platform 23 and is located at the bottom of the lifting platform 23. The brake plate 242 is fixedly connected to the output end of the drive cylinder 241 and is located on one side of the output end of the drive cylinder 241.

[0026] In this embodiment, the drive cylinder 241 is connected to an acceleration sensor (not shown in the figure). When the lifting steel cable 224 breaks and the acceleration of the lifting platform 231 is abnormal, the data is transmitted to the sensor. Then, the controller controls the output end of the drive cylinder 241 to extend, and the brake plate 242 is pressed against the lifting slide rail 21 to realize emergency braking of the lifting platform 231, so as to prevent the lifting platform 231 from falling accidentally and protect the safety of the maintenance personnel.

[0027] Furthermore, the brake plate 242 includes a clamping plate 2421 and a friction plate 2422. The clamping plate 2421 is fixedly connected to the output end of the drive cylinder 241 and is located on one side of the output end of the drive cylinder 241. The friction plate 2422 is detachably connected to the clamping plate 2421 and is located on the side of the clamping plate 2421 away from the drive cylinder 241.

[0028] In this embodiment, the clamping plate 2421 is driven by the driving cylinder 241, which in turn pushes the friction plate 2422 against the lifting slide rail 21 to achieve emergency braking of the lifting platform 231, prevent the lifting platform 231 from falling accidentally, and protect the safety of the maintenance personnel.

[0029] The above-disclosed embodiments are merely preferred embodiments of a distillation column for processing dimethylaminopropylamine and diisopropanol, and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A distillation column for processing dimethylaminopropylamine and diisopropanol, characterized in that... ； It includes a distillation column body and a lifting assembly, wherein the lifting assembly includes a lifting slide rail, a lifting mechanism, a lifting platform, and a fall arrestor; The lifting slide rail is fixedly connected to the distillation column body and is located on the outer wall of the distillation column body. The lifting platform is slidably connected to the lifting slide rail and is located on one side of the lifting slide rail. The lifting mechanism is mounted on one side of the lifting slide rail and the lifting platform. The fall arrestor is mounted on the side of the lifting platform near the lifting slide rail.

2. The distillation column for processing dimethylaminopropylamine and diisopropanol as described in claim 1, characterized in that... ； The lifting mechanism includes a lifting motor, pulleys, winding rollers, and lifting steel ropes. The pulleys are mounted on both sides of the lifting rail, the lifting motor is mounted on the bottom of the lifting rail, the winding rollers are fixedly connected to the output end of the lifting motor and located on one side of the lifting motor, and the lifting steel ropes are mounted between the pulleys and the winding rollers.

3. The distillation column for processing dimethylaminopropylamine and diisopropanol as described in claim 2, characterized in that; The lifting platform includes a lifting platform, a guardrail, and a side-opening door. The lifting platform is connected to the lifting steel cable and slidably connected to the lifting slide rail, and is located on one side of the lifting slide rail. The guardrail is fixedly connected to the lifting platform and is located on the top of the lifting platform. The side-opening door is rotatably disposed on the side of the guardrail near the distillation column body.

4. The distillation column for processing dimethylaminopropylamine and diisopropanol as described in claim 2, characterized in that... ； The fall arrestor includes a drive cylinder and a brake plate. The drive cylinder is fixedly connected to the lifting platform and located at the bottom of the lifting platform. The brake plate is fixedly connected to the output end of the drive cylinder and located on one side of the output end of the drive cylinder.

5. The distillation column for processing dimethylaminopropylamine and diisopropanol as described in claim 4, characterized in that... ； The brake plate includes a clamping plate and a friction plate. The clamping plate is fixedly connected to the output end of the drive cylinder and is located on one side of the output end of the drive cylinder. The friction plate is detachably connected to the clamping plate and is located on the side of the clamping plate away from the drive cylinder.

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