Drying auxiliary device for coating type membrane module

Abstract

The utility model discloses a coating type membrane module drying auxiliary device, which belongs to the technical field of membrane module drying and comprises a traveling mechanism, a lifting mechanism, a rotating mechanism and a membrane module fastening mechanism. The membrane module fastening mechanism is used for fixing a membrane module; the lifting mechanism is used for driving the membrane module fastening mechanism to do lifting motion; the rotating mechanism is used for driving the membrane module fastening mechanism to rotate; the lifting mechanism, the rotating mechanism and the membrane module fastening mechanism are arranged on the walking mechanism. The coating type membrane module drying auxiliary device can effectively solve the problems that in the drying process of a membrane module drying auxiliary device in the prior art, coating liquid distribution is not uniform, the thickness of a selected layer is not uniform, the equipment maintenance cost is high, operation is not convenient and fast, and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to membrane module drying technical field, specifically relates to a kind of coating type membrane module drying auxiliary device. BACKGROUND

[0002] Gas separation membrane is the core material of membrane separation method trapping CO2, according to the different preparation principles, its preparation method can be divided into: coating method, reaction method, grafting method, doping method and various methods. Coating method is one of the most commonly used preparation methods of commercial gas separation membrane, and the membrane material prepared by coating method has the advantages of uniformity and stability. The performance of gas separation membrane prepared by coating method is not only affected by factors such as composition, concentration and ratio of coating liquid, but also closely related to coating method, drying method and other process conditions. Among them, the drying method has important influence on the thickness and uniformity of the selected layer after film formation. During the drying process, uneven distribution of coating liquid may cause uneven thickness distribution of the selected layer. Too large or too small thickness of the selected layer will reduce the comprehensive performance of the membrane module. Therefore, selecting appropriate drying method is of great significance for obtaining membrane material with excellent performance.

[0003] Chinese invention patent CN114576966B discloses a drying device for ultrafiltration membrane processing and its working method, which uses a motor to drive a threaded rod to push a clamping plate to move, and the membrane module is assembled and disassembled and fixed. The outlet pipe is used to realize the all-round drying of multiple membrane modules. Although this patent can improve the drying efficiency to some extent, it cannot avoid the uneven distribution of coating liquid in the vertical and horizontal directions due to the influence of gravity and drying hot air, which causes uneven thickness distribution of the selected layer. Chinese utility model patent CN209399706U discloses a hollow fiber membrane module drying device. The device uses gears and springs for transmission, adopts limiting plates and movable plates to adapt to the drying of membrane modules of different sizes, and can realize the rotation of the membrane module during drying. However, it is not convenient to assemble and disassemble, and the transmission mechanism is relatively complex. The spring is easy to wear and age after long-term use, so the failure rate and maintenance demand are high. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned insufficient place provides a kind of coating type membrane module drying auxiliary device to solve the problems, such as uneven distribution of coating liquid, uneven thickness of selected layer, high equipment maintenance cost and inconvenient operation, existing in the drying process of membrane module drying auxiliary device of prior art. To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] The application discloses a kind of coating film module drying auxiliary devices, including walking mechanism, lifting mechanism, rotating mechanism and film module fastening mechanism;The film module fastening mechanism is used to fix film module;The lifting mechanism is used to drive film module fastening mechanism to do lifting movement;The rotating mechanism is used to drive film module fastening mechanism to do rotating movement;Lifting mechanism, rotating mechanism and film module fastening mechanism are all arranged on walking mechanism.

[0006] Further, the walking mechanism includes a base and front and rear pulleys connected to the base.

[0007] Further, the film module fastening mechanism includes a fixed seat and a clamp; the fixed seat is detachably connected to the output end of the rotating mechanism; the fixed seat is provided with a groove; one side of the clamp is hingedly connected to the fixed seat, and the other side is detachably connected to the fixed seat and cooperates with the groove to fix the film module.

[0008] Further, the rotating mechanism includes a servo motor and a planetary reducer; the output end of the servo motor is connected to the planetary reducer; the output shaft of the planetary reducer is provided with external threads at the end; one side of the fixed seat is provided with a threaded hole, which is threadedly connected to the output shaft of the planetary reducer to achieve detachable connection.

[0009] Further, the lifting mechanism includes a fixedly connected fixed sliding guide on the base; the fixed sliding guide is slidably connected with a movable sliding guide; the movable sliding guide is fixedly connected with the servo motor; the base is provided with a driving assembly to drive the movable sliding guide to move on the fixed sliding guide.

[0010] Further, the driving assembly includes a lead screw and a moving platform; the moving platform is connected to the lead screw; the lead screw is rotatably connected to the base and parallel to the direction of the fixed sliding guide; the moving platform is fixedly connected with the servo motor.

[0011] Further, the driving assembly further includes a rocking hand wheel; the rocking hand wheel is provided with a connecting shaft; the connecting shaft is fixedly connected with a first bevel gear; the first bevel gear is vertically engaged with a second bevel gear; the second bevel gear is coaxially connected with the lead screw.

[0012] Further, the front pulley is a universal wheel.

[0013] Further, the rear pulley is a directional wheel.

[0014] Further, the universal wheel and the directional wheel are both provided with a self-locking device.

[0015] The beneficial effects of the present application are:

[0016] 1.The utility model discloses a servo motor transmission device can realize the axial rotation of membrane assembly in the drying process and can realize the speed regulation, can effectively guarantee the uniform distribution of coating liquid in the membrane silk in the drying process, and further guarantee the uniformity of the selected layer thickness after film formation.

[0017] 2.The utility model discloses a dynamic sliding guide rail, fixed sliding guide rail combination and screw rod drive device can guarantee that drying auxiliary device is applicable to the rotation of different size membrane assembly, and the setting of walking mechanism can realize the portable transfer of membrane assembly and drying auxiliary device. DRAWINGS

[0018] Fig. 1 It is the front view of the utility model;

[0019] Fig. 2 It is the side view of the utility model;

[0020] Fig. 3 It is the plan view of the utility model;

[0021] In the drawing, 1, screw rod;2, fixed sliding guide rail;3, membrane assembly fastening mechanism;4, membrane assembly;5, directional wheel;6, dynamic sliding guide rail;7, swing hand wheel;8, motor;9, universal wheel;10, output shaft;11, moving platform;12, clamp. SPECIFIC EMBODIMENT

[0022] The utility model is further explained in detail in combination with the drawings and specific embodiment, but the utility model is not limited to the following examples.

[0023] Example one:

[0024] See the attached Figs. 1-3The application discloses a kind of coating film module drying auxiliary device, including base, lifting mechanism is arranged on base, to realize the lifting and lowering movement on base. Specifically, two mutually parallel fixed sliding guide rails 2 are vertically arranged on base, and two movable sliding guide rails 6 are connected on the two fixed sliding guide rails 2. The driving assembly arranged on the base specifically includes a mounting box, which is fixed between the top ends of the two fixed sliding guide rails 2 and supported on the base. A rocking hand wheel 7 is provided on one side of the mounting box. A connecting shaft is provided at the center of the rocking hand wheel 7. A first bevel gear is fixedly connected on the connecting shaft in a coaxial manner. The rotation of the rocking hand wheel 7 drives the first bevel gear to rotate. A second bevel gear is vertically engaged on the first bevel gear. A lead screw 1 is coaxially connected on the second bevel gear. The second bevel gear is rotatably connected in the mounting box through a bearing structure. The two ends of the lead screw 1 are rotatably connected to the mounting box and the base through bearing structures. A moving platform 11 is movably connected on the lead screw 1. The two ends of the moving platform 11 are connected to the two movable sliding guide rails 6, respectively. Threaded holes are provided on the moving platform 11 and matched with the lead screw 1. By rotating the rocking hand wheel 7 by the operator, power is transmitted to the lead screw 1 through the first bevel gear and the second bevel gear in sequence. The lead screw 1 is driven to rotate. The rotation of the lead screw 1 drives the moving platform 11 to slide on the fixed sliding guide rail 2. The rotating direction of the rocking hand wheel 7 is adjusted to adjust the upward and downward movement direction of the moving platform 11.

[0025] The moving platform 11 is fixedly connected with a driving mechanism between the two moving sliding guides 6, and the output end of the driving mechanism is detachably connected with a fixing seat for fixing the membrane assembly 4. The specific driving mechanism is composed of a servo motor 8 and a planetary reducer. The servo motor 8 can control the speed and has very accurate position accuracy, and can convert a voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor 8 is controlled by the input signal and can quickly respond. In an automatic control system, the servo motor 8 is used as an execution element and has the characteristics of small electromechanical time constant and high linearity, and can convert the received electrical signal into angular displacement or angular velocity output on the shaft of the motor. It can quickly accept feedback and accurately control the rotation speed and angle. The planetary reducer further ensures the rotation speed of the output end, and is used to drive the membrane assembly 4 connected with the output shaft 10 to more accurately adjust the position. The servo motor 8 and the planetary reducer are connected and combined in a clamping manner and an external coupling manner. Specifically, the moving platform 11 is provided with a mounting seat for placing the servo motor 8 and the planetary reducer, and the threaded hole on the moving platform 11 does not interfere with the output shaft 10. The output shaft 10 of the planetary reducer is provided with an external thread, which is detachably fixedly connected with the fixing seat through thread cooperation. The fixing seat is provided with a clamp 12, and the side of the fixing seat away from the servo motor 8 is provided with a semicylindrical groove. One side of the clamp 12 is connected with one side of the semicylindrical groove in a hinged manner, and the other side of the clamp 12 is connected with the other side of the semicylindrical groove through a lock catch structure. The structure of the clamp 12 is also semicylindrical, which cooperates with the semicylindrical groove of the fixing seat to form a limiting through hole for placing the membrane assembly 4. The servo motor 8 cooperates with the planetary reducer to slowly rotate the membrane assembly 4, and accurately adjusts the position of the membrane assembly 4 in the drying process.

[0026] The walking mechanism further comprises front pulleys and rear pulleys arranged on the base, wherein the front pulleys are universal wheels 9, and the rear pulleys are directional wheels 5. The embodiment does not limit the structure of the front and rear pulleys, and the front pulleys can also be directional wheels 5, and the rear pulleys can be universal wheels 9. Self-locking devices are arranged in the front pulleys and the rear pulleys. For example, the self-locking devices can be plug-in brake wheels, clamp spring universal wheels 9, etc.

[0027] Principle: with long 1600mm, outer diameter of 250mm membrane module 4 drying, for example, first operation of the hand wheel 7 rotating screw 1 make mobile platform 11 through the dynamic sliding guide rail 6 on the fixed sliding guide rail 2 in vertical direction, make mobile platform 11 on the output shaft 10 position from the drying auxiliary device bottom plane distance is about 800mm. Again, the membrane module fastening mechanism 3 and the output shaft 10 are fixedly connected, and the orientation is adjusted, so that the semicylindrical groove on the fixed seat is in vertical orientation. The membrane module 4 is transferred to the semicylindrical groove on the fixed seat, and is placed in the center, and the membrane module 4 is fastened with the fixed seat by the clamp 12. According to the size of the drying box and the membrane module 4, the hand wheel 7 is adjusted to adjust the distance between the bottom of the membrane module 4 and the bottom plane of the drying auxiliary device to an appropriate value (in this example, 100mm), so as to avoid the collision between the membrane module 4 and the bottom of the drying auxiliary device in vertical orientation. The oriented wheel 5 and the universal wheel 9 are used to push the membrane module 4 drying auxiliary device to the middle of the drying box, so that the membrane module 4 is placed horizontally and leaves a certain distance from the inner wall of the drying box, so as to avoid the collision between the membrane module 4 and the inner wall of the drying box. After placing, the self-locking device is locked to lock the oriented wheel 5 and the universal wheel 9, so as to avoid the shaking and displacement of the membrane module 4 drying auxiliary device during drying, and to avoid the damage to the membrane module 4. During drying, the motor 8 can drive the membrane module fastening mechanism 3 and the membrane module 4 to adjust the position and realize the rotation operation. The drying effect is good, the coating liquid is uniformly distributed, and the operation is convenient.

[0028] The membrane module drying auxiliary device can adjust the servo motor 8 to a variable frequency motor 8 as needed to realize convenient speed adjustment. According to different drying temperatures, the motor 8 can be connected to the drying box in two ways, namely internal connection or external connection. The internal power supply can be selected for lower drying temperature, and the external power supply needs to be selected for higher drying temperature. For membrane modules 4 of different sizes, different sizes of membrane module fastening mechanisms 3 can be configured to realize the drying operation.

[0029] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. A coating membrane module drying auxiliary device, characterized in that: It comprises a walking mechanism, a lifting mechanism, a rotating mechanism and a membrane assembly fastening mechanism (3); the membrane assembly fastening mechanism (3) is used to fix the membrane assembly (4); the lifting mechanism is used to drive the membrane assembly fastening mechanism (3) to perform lifting movement; the rotating mechanism is used to drive the membrane assembly fastening mechanism (3) to perform rotating movement; the lifting mechanism, the rotating mechanism and the membrane assembly fastening mechanism (3) are all arranged on the walking mechanism.

2. The coating membrane module drying auxiliary device according to claim 1, characterized in that: The walking mechanism comprises a base and a front pulley and a rear pulley connected to the base.

3. The coating membrane module drying auxiliary device according to claim 2, characterized in that: The membrane assembly fastening mechanism (3) comprises a fixing seat and a clamp (12); the fixing seat is detachably connected to the output end of the rotating mechanism; a groove is provided on the fixing seat; one side of the clamp (12) is hinged to the fixing seat, and the other side is detachably connected to the fixing seat, and cooperates with the groove to fix the membrane assembly (4).

4. The coating membrane module drying auxiliary device according to claim 3, characterized in that: The rotating mechanism comprises a servo motor (8) and a planetary reducer; the output end of the servo motor (8) is connected to the planetary reducer; the end of the output shaft (10) of the planetary reducer is provided with an external thread; one side of the fixing seat is provided with a threaded hole, which is threadedly matched with the output shaft (10) of the planetary reducer to complete a detachable connection.

5. The coating membrane module drying auxiliary device according to claim 4, characterized in that: The lifting mechanism comprises a fixed sliding guide rail (2) fixedly connected to a base; a movable sliding guide rail (6) is slidably connected to the fixed sliding guide rail (2); the movable sliding guide rail (6) is fixedly connected to a servo motor (8); and a driving assembly is provided on the base to drive the movable sliding guide rail (6) to move on the fixed sliding guide rail (2).

6. The coating membrane module drying auxiliary device according to claim 5, characterized in that: The driving assembly comprises a screw rod (1) and a movable platform (11); the movable platform (11) is cooperatively connected to the screw rod (1); the screw rod (1) is rotatably connected to the base and is parallel to the direction of the fixed sliding guide rail; the movable platform (11) is fixedly connected to the servo motor (8).

7. The coating membrane module drying auxiliary device according to claim 6, characterized in that: The driving assembly further comprises a rocking handwheel (7); a connecting shaft is provided on the rocking handwheel (7); a first bevel gear is fixedly connected to the connecting shaft; a second bevel gear is vertically meshed with the first bevel gear; and the second bevel gear is coaxially connected to the screw rod (1).

8. The coating membrane module drying auxiliary device according to claim 2, characterized in that: The front pulley is a universal wheel (9).

9. The coating membrane module drying auxiliary device according to claim 8, characterized in that: The rear pulley is a directional wheel (5).

10. The coating membrane module drying auxiliary device according to claim 9, characterized in that: The universal wheel (9) and the directional wheel (5) are both provided with self-locking devices.

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