A butyl acrylate unit catalyst recovery discharge device

Abstract

The utility model discloses a butyl acrylate unit catalyst recovery and discharge device, including the processing box, the top of processing box is equipped with two fixed frames, the inner wall of two fixed frames is all hinged and is equipped with the ceramic membrane, one side of two fixed frames is all fixedly equipped with the connecting rod. The utility model discloses being equipped with ceramic membrane, fixed frame and drive part, and fixed frame sets up two, and through drive part can drive two fixed frames to move upwards respectively, and then drive ceramic membrane to move upwards, and through ceramic membrane, it is convenient to filter and separate the solution, avoid butanol mixture in catalyst solution with it together recovery, like this guarantee catalyst recovery purity, simultaneously, this alternately removes two fixed frame's mode, when the ceramic membrane maintenance in one of fixed frames, through the ceramic membrane in another fixed frame, continue to work, thereby improve the recovery efficiency of catalyst solution.

Description

Technical Field

[0001] This utility model relates to the field of butyl acrylate production technology, specifically to a butyl acrylate unit catalyst recovery and emission device. Background Technology

[0002] Butyl acrylate is an important organic compound, mainly used in chemical, materials and environmental protection fields. The general preparation method of butyl acrylate is esterification, which involves heating acrylic acid and butanol as raw materials to produce butyl acrylate and water under the influence of a catalyst. In the entire esterification process, the catalyst only promotes the reaction in the forward direction and does not participate in the reaction. Its own properties do not change. Catalyst recovery and emission devices are usually used to treat it to achieve efficient recycling and pollution control of the butyl acrylate unit catalyst.

[0003] A search revealed that Chinese patent number CN212640338U proposes a butyl acrylate unit catalyst recovery and emission system, which includes a catalyst extraction tower connected to a butyl acrylate reactor, a spiral plate reactor, and a recovery tower; a washing tower external pump and a buffer tank external pump connected to the recovery tower via the spiral plate reactor; and the recovery tower connected to a wastewater storage tank via a spiral plate heat exchanger.

[0004] The aforementioned patent stabilizes the flow rate of the catalyst aqueous solution returning to the butyl acrylate reactor and stabilizes the catalyst concentration in the butyl acrylate reactor. However, the solution recovered by the catalyst extraction tower contains a mixture of catalyst and butanol. When the extraction tower directly transports part of the solution to the recovery tower, the butanol mixture will also be mixed in, which will affect the purity of the recovered catalyst. Utility Model Content

[0005] The purpose of this invention is to provide a butyl acrylate unit catalyst recovery and emission device to solve the problems mentioned in the background art. To solve the above technical problems, this invention is achieved through the following technical solution: This utility model relates to a butyl acrylate unit catalyst recovery and emission device, comprising: The processing box has two fixed frames extending through its top. Ceramic membranes are fitted into the inner walls of both fixed frames. A connecting rod is fixed to one side of each of the two fixed frames. Rollers are rotatably mounted on the inner walls of both connecting rods. Two fixed seats are fixed to one side of the processing box. The driving component includes a servo motor, the output end of which is fixedly provided with a lead screw, and the outer wall of the lead screw is threaded with a top material seat in the middle, and the two sides of the top material seat are respectively in contact with the outer walls of two rollers.

[0006] Furthermore, the outer wall of the lead screw passes through one of the fixed seats, and one end of the lead screw is rotatably connected to the other fixed seat.

[0007] Furthermore, the driving component also includes two limiting blocks, with one side of each limiting block fixedly disposed at the top of the two sides of the top material seat.

[0008] Furthermore, the driving component also includes a slide rod, the two ends of which are respectively fixedly disposed on opposite sides of two fixed seats, and the outer wall of the slide rod penetrates one side of the top material seat.

[0009] Furthermore, the bottom end of the treatment box is provided with two first drain pipes, and the top ends of the two first drain pipes are respectively engaged with the inner walls of the drain ports at the bottom ends of the two ceramic membranes. A second drain pipe is provided on one side of the treatment box relative to the fixed base.

[0010] Furthermore, it also includes a limiting component, which includes an elastic block. The bottom end of the elastic block is fixedly disposed at the top of the fixed frame, and a limiting strip is engaged on the outer wall of the elastic block.

[0011] Furthermore, the limiting component also includes a slider, the top end of which is fixedly disposed at the bottom end of the limiting strip, and the outer wall of the slider is slidably connected to the top end of the fixed frame.

[0012] This utility model has the following beneficial effects: This invention comprises a ceramic membrane, a fixed frame, and a driving component. Two fixed frames are provided, and the driving component can move each frame upwards, thereby moving the ceramic membrane upwards. The ceramic membrane facilitates filtration and separation of the solution, preventing the butanol mixture in the catalyst solution from being recovered along with it, thus ensuring the purity of the recovered catalyst. Furthermore, this alternating movement of the two fixed frames allows for continued operation of the ceramic membrane in the other fixed frame while one frame is being repaired, thereby improving the recovery efficiency of the catalyst solution. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model and its connection with the catalyst extraction tower; Figure 2 This is a schematic diagram of the connection structure of the fixed frame part of this utility model; Figure 3 This is a schematic diagram of the drive component structure of this utility model; Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 11. Processing box; 111. Fixing base; 112. First drain pipe; 113. Second drain pipe; 12. Fixing frame; 121. Connecting rod; 122. Roller; 13. Ceramic membrane; 21. Servo motor; 22. Lead screw; 23. Top material seat; 24. Limiting block; 25. Sliding rod; 31. Elastic block; 32. Limiting strip; 33. Sliding block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] Please see Figure 1-4 As shown, this utility model is a butyl acrylate unit catalyst recovery and emission device, comprising: The processing box 11 has two fixed frames 12 extending through its top. Ceramic membranes 13 are fitted into the inner walls of both fixed frames 12. A connecting rod 121 is fixed to one side of each of the two fixed frames 12. Rollers 122 are rotatably mounted on the inner walls of both connecting rods 121. Two fixed seats 111 are fixed to one side of the processing box 11. The processing box 11 is used for solution filtration and separation. The fixed frame 12 is slidably connected to the processing box 11. The ceramic membrane 13 is used to separate the catalyst and butanol compound in the recovered catalyst solution. Its principle is to use its microporous structure and physical sieving effect to selectively separate different components in the mixture under pressure. The bottom end of the ceramic membrane 13 is higher than the bottom end of the fixed frame 12.

[0019] The driving component includes a servo motor 21. A lead screw 22 is fixedly provided at the output end of the servo motor 21. A top material seat 23 is threaded in the middle of the outer wall of the lead screw 22, and the two sides of the top material seat 23 are in contact with the outer walls of the two rollers 122 respectively. The servo motor 21 is used to provide the driving force required for the top material seat 23 to move left and right. One end of the servo motor 21 is fixed to one side of one of the fixed seats 111. The upper end of the top material seat 23 is trapezoidal. When it moves left and right, it can drive the two connecting rods 121 to move upward respectively. A control panel is installed on one side of the processing box 11. The servo motor 21 is electrically connected to the external power supply through the control panel.

[0020] The outer wall of the lead screw 22 passes through one of the fixed seats 111, and one end of the lead screw 22 is rotatably connected to the other fixed seat 111; The lead screw 22 is rotatably engaged with one of the fixed seats 111. The fixed seat 111 allows the lead screw 22 to rotate, thereby improving the overall stability of the lead screw 22 during rotation.

[0021] The driving component also includes two limiting blocks 24, with the opposite sides of the two limiting blocks 24 respectively fixedly installed at the top of both sides of the top material seat 23; The limiting block 24 is used to limit the movement of the connecting rod 121. When the roller 122 in the connecting rod 121 moves upward to contact the limiting block 24, the fixing frame 12 contacts the inner wall of the processing box 11, and the bottom end of the ceramic membrane 13 is on the same horizontal plane as the top end of the processing box 11, which makes it easy to remove the ceramic membrane 13.

[0022] The drive component also includes a slide rod 25, with both ends of the slide rod 25 fixedly mounted on opposite sides of the two fixed seats 111, and the outer wall of the slide rod 25 penetrating one side of the top material seat 23; The slide bar 25 is used to limit the movement of the top material seat 23, so that it moves horizontally along the direction of the lead screw 22. The slide bar 25 and the top material seat 23 are in sliding engagement.

[0023] Two first drain pipes 112 are provided through the bottom end of the treatment box 11, and the top ends of the two first drain pipes 112 are respectively engaged with the inner wall of the drain port at the bottom end of the two ceramic membranes 13. A second drain pipe 113 is provided on one side of the treatment box 11 relative to the fixed base 111. The first drain pipe 112 is used to discharge the solution containing butanol compounds after filtration and separation, and the second drain pipe 113 is used to discharge the catalyst solvent after filtration and separation, and it is connected to the recovery tower.

[0024] Working principle: After connecting the ceramic membrane 13 on one of the fixed frames 12 to the catalyst extraction tower, when the catalyst extraction tower delivers part of the solution to the ceramic membrane 13, the butanol compound solution and the catalyst solution are separated by filtration through the ceramic membrane 13, and discharged and transported respectively through the first drain pipe 112 and the second drain pipe 113. This method facilitates solution filtration and separation, and avoids butanol mixture from being mixed into the recovery tower, thus ensuring the purity of catalyst recovery. When the ceramic membrane 13 is under maintenance, the servo motor 21 is turned on, and the servo motor 21 drives the lead screw 22 to rotate, and the rotation of the lead screw 22... The moving top material seat 23 moves to the left, and the top material seat 23 drives the connecting rod 121 to move upward through the roller 122, which in turn drives the fixed frame 12 to move upward, so that the ceramic membrane 13 moves upward out of the processing box 11, and the connecting pipe on the ceramic membrane 13 is connected to the ceramic membrane 13 in another fixed frame 12. The catalyst solution filtration and separation continues through the other ceramic membrane 13. In this way, the two fixed frames 12 can be moved alternately, so that when the ceramic membrane 13 in one fixed frame 12 is under maintenance, the ceramic membrane 13 in the other fixed frame 12 can continue to work, thereby improving the recovery efficiency of the catalyst solution.

[0025] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes: The limiting component includes an elastic block 31, the bottom end of which is fixedly mounted on the top of the fixed frame 12, and a limiting strip 32 is engaged on the outer wall of the elastic block 31. The top of the limiting strip 32 is provided with a locking hole that matches the elastic block 31, and when the elastic block 31 is engaged with the limiting strip 32, one side of the limiting strip 32 is in contact with the outer wall of the ceramic film 13.

[0026] The limiting component also includes a slider 33, the top of which is fixedly disposed at the bottom of the limiting strip 32, and the outer wall of the slider 33 is slidably connected to the top of the fixed frame 12. The slider 33 is T-shaped and is used to limit the movement of the limiting strip 32, thereby ensuring the overall stability when the limiting strip 32 moves. The top of the fixed frame 12 is provided with a groove that matches the slider 33. When the slider 33 slides to one end of the groove, the limiting strip 32 engages with the elastic block 31. When the slider 33 slides to the other end of the groove, the limiting strip 32 and the top interface end of the ceramic membrane 13 are not on the same vertical plane.

[0027] Working principle: When the ceramic membrane 13 moves upward with the fixed frame 12 for maintenance, press the elastic block 31 inward and move the limiting strip 32 outward until the slider 33 slides to one end of the groove. After the ceramic membrane 13 is removed from the fixed frame 12 for maintenance, it is similarly locked onto the fixed frame 12. Then push the limiting strip 32 inward until the limiting strip 32 locks onto the elastic block 31. At this time, the limiting strip 32 contacts the ceramic membrane 13. In this way, the ceramic membrane 13 can be assisted in limiting its position, thereby improving the overall stability of the connection between the fixed frame 12 and the ceramic membrane 13.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A butyl acrylate unit catalyst recovery and emission device, characterized in that, include: The processing box (11) has two fixed frames (12) running through its top. Ceramic membranes (13) are fitted into the inner walls of the two fixed frames (12). A connecting rod (121) is fixed to one side of each of the two fixed frames (12). Rollers (122) are rotatably mounted on the inner walls of the two connecting rods (121). Two fixed seats (111) are fixed to one side of the processing box (11). The driving component includes a servo motor (21), and a lead screw (22) is fixedly provided at the output end of the servo motor (21). A top material seat (23) is threaded in the middle of the outer wall of the lead screw (22), and the two sides of the top material seat (23) are in contact with the outer walls of two rollers (122).

2. The butyl acrylate unit catalyst recovery and emission device according to claim 1, characterized in that: The outer wall of the lead screw (22) passes through one of the fixed seats (111), and one end of the lead screw (22) is rotatably connected to the other fixed seat (111).

3. The butyl acrylate unit catalyst recovery and emission device according to claim 1, characterized in that: The driving component also includes two limiting blocks (24), with the opposite sides of the two limiting blocks (24) respectively fixedly disposed at the top of the top of the top material seat (23).

4. The butyl acrylate unit catalyst recovery and emission device according to claim 1, characterized in that: The driving component also includes a slide rod (25), the two ends of which are fixedly disposed on opposite sides of two fixed seats (111), and the outer wall of the slide rod (25) penetrates one side of the top material seat (23).

5. The butyl acrylate unit catalyst recovery and emission device according to claim 1, characterized in that: The bottom end of the treatment box (11) is provided with two first drain pipes (112), and the top ends of the two first drain pipes (112) are respectively engaged with the inner wall of the drain port at the bottom end of the two ceramic membranes (13). The side of the treatment box (11) relative to the fixed seat (111) is provided with a second drain pipe (113).

6. The butyl acrylate unit catalyst recovery and emission device according to claim 1, characterized in that: It also includes a limiting component, which includes an elastic block (31). The bottom end of the elastic block (31) is fixedly disposed at the top of the fixed frame (12), and a limiting strip (32) is fitted onto the outer wall of the elastic block (31).

7. The butyl acrylate unit catalyst recovery and emission device according to claim 6, characterized in that: The limiting component also includes a slider (33), the top of which is fixedly disposed at the bottom of the limiting strip (32), and the outer wall of the slider (33) is slidably connected to the top of the fixed frame (12).

Images