A tris-hydroxymethyl aminomethane catalyst filtration recovery device

Abstract

The utility model discloses a kind of trimethylolamine catalyst filtering recovery devices, belong to filtering recovery device field, including fixed frame, fixedly installed with filterization cylinder on the fixed frame, the filterization cylinder inside is equipped with the filtering assembly for realizing catalyst and reaction liquid separation, lifting assembly is also installed on the fixed frame;Through the linkage design of lifting assembly and filtering assembly, the quick disassembly and cleaning of filter frame and filter screen plate are realized, when catalyst residue or reaction byproduct accumulated on filter surface needs to be cleaned, only need to pass through the cylinder at the top of fixed frame, power column and the multiple filter frames, filter screen plate under it can be driven synchronous lifting by driving adjusting plate, make whole filtering assembly completely remove from filterization cylinder, without disassembling other fixed components of filterization cylinder, the design solves the problem of disassembly cumbersome, cleaning time-consuming caused by filter material fixed installation in prior art.

Description

Technical Field

[0001] This utility model belongs to the technical field of filtration and recovery devices, specifically relating to a filtration and recovery device for a tris(hydroxymethyl)aminomethane catalyst. Background Technology

[0002] Tris(hydroxymethyl)aminomethane is a key organic intermediate in chemical synthesis, biomedicine and other fields. Its preparation process relies on catalysts to improve reaction efficiency. After the reaction, the separation and recovery of the catalyst becomes the core link to ensure product purity and reduce production costs. Currently, most industrially used tris(hydroxymethyl)aminomethane catalyst filtration and recovery devices adopt a fixed filtration structure, in which the filter screen or filter plate is fixedly installed inside the filtration cylinder. The catalyst is separated from the reaction liquid through static filtration. Since the filter frame and filter screen are fixedly assembled inside the filtration cylinder, catalyst residue and reaction by-products are easily accumulated on the surface of the filter screen after long-term use, forming a filter cake that blocks the filter screen pores, resulting in a significant decrease in filtration efficiency. Moreover, when disassembling and cleaning, the internal filter frame and filter screen must be removed one by one, which is cumbersome, time-consuming and labor-intensive, and seriously affects the continuity of production. Utility Model Content

[0003] The purpose of this invention is to provide a tris(hydroxymethyl)aminomethane catalyst filtration and recovery device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tris(hydroxymethyl)aminomethane catalyst filtration and recovery device, comprising a fixed frame, a filtration cylinder fixedly mounted on the fixed frame, a filtration assembly disposed inside the filtration cylinder, a lifting assembly also mounted on the fixed frame, the filtration assembly being rotatably mounted on the adjusting plate of the lifting assembly, a drive motor fixedly mounted on the adjusting plate, and the output end of the drive motor being connected to the filtration assembly in a transmission connection.

[0005] In a preferred embodiment, the filter assembly includes a power column, and a plurality of filter frames spaced apart along the axial direction are fixedly connected to the lower end of the power column. The filter frames are generally circular in structure. From top to bottom, each group of filter frames is respectively equipped with a first filter plate, a second filter plate, and a third filter plate. The pore sizes of the three groups of filter plates are different from each other. Each group of filter frames is arranged on the power column in order of decreasing pore size.

[0006] In a preferred embodiment, each group of filter frames has a fan-shaped cavity with a slot formed in the fan-shaped cavity. Each group of first, second, and third filter plates has a protruding locking block at its bottom, and the first, second, and third filter plates respectively engage with the locking blocks at their bottoms in the corresponding slots.

[0007] In a preferred embodiment, a cover plate is also fixedly connected to the power column. When the third filter plate is initially located at the bottom of the filter cylinder, the cover plate just seals against the top of the filter cylinder. A feed chamber is provided above the cover plate, and a discharge valve is provided at the bottom of the filter cylinder.

[0008] In a preferred embodiment, a connecting plate is welded to the top of the power column. The connecting plate is rotatably installed in the annular groove cavity opened in the middle of the adjustment plate. A U-shaped adapter plate is also fixedly connected to the adjustment plate with bolts. An assembly cylinder is installed below the adapter plate. The drive motor is assembled in the assembly cylinder. Furthermore, a transmission gear is fixedly connected to the output end of the drive motor. The transmission gear is engaged in the tooth cavity opened in the connecting plate.

[0009] In a preferred embodiment, a cylinder is mounted on the top of the mounting bracket, and a connecting block is fixedly connected to the output end of the cylinder. The connecting block is fixedly connected to the adapter plate with bolts.

[0010] In a preferred embodiment, the fixing frame has vertical guide grooves on both sides, and the adjusting plate has guide blocks protruding from both ends. The adjusting plate moves up and down along the opening direction of the guide grooves in cooperation with the guide blocks at both ends.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This tris(hydroxymethyl)aminomethane catalyst filtration and recovery device achieves rapid disassembly and cleaning of the filter frame and filter screen through the linkage design of the lifting component and the filter component. When it is necessary to clean the catalyst residue or reaction by-products accumulated on the surface of the filter material, it is only necessary to control the cylinder at the top of the fixed frame to drive the adjustment plate to drive the power column and multiple sets of filter frames and filter screens below to lift synchronously, so that the entire filter component can be completely removed from the filter cylinder without disassembling other fixed parts of the filter cylinder. This design solves the problem of cumbersome disassembly and time-consuming cleaning caused by the fixed installation of filter material in the prior art. In this tris(hydroxymethyl)aminomethane catalyst filtration and recovery device, the filter assembly is moved up and down along the axial direction of the filter cylinder under the drive of the lifting assembly, so that the filter screens with different pore sizes form a dynamic capture path in the reaction liquid. Compared with traditional static filtration, it can effectively break the agglomeration of catalyst particles and avoid the formation of a dense filter cake in a single location, thus greatly improving the filtration speed. This tris(hydroxymethyl)aminomethane catalyst filtration and recovery device uses a drive motor to synchronously rotate the filter components through a transmission structure. By utilizing centrifugal force, the reaction liquid is brought into full contact with the filter screen, which not only increases the collision probability between the catalyst particles and the filter screen, but also removes part of the filter cake attached to the surface of the filter screen through centrifugal force, further reducing filtration resistance. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the lifting component of this utility model; Figure 3 This is a schematic diagram of the installation structure of the filter assembly of this utility model; Figure 4 This is a schematic diagram of the filter plate installation structure of this utility model.

[0013] In the diagram: 1. Fixing frame; 11. Guide groove; 2. Filtering cylinder; 21. Discharge valve; 3. Cover plate; 31. Feeding chamber; 4. Filter assembly; 41. Power column; 411. Connecting plate; 42. Filter frame; 421. Fan-shaped cavity; 422. Slot; 43. First filter screen plate; 44. Second filter screen plate; 45. Third filter screen plate; 46. Locking block; 5. Lifting assembly; 51. Cylinder; 52. Connecting block; 53. Adapter plate; 54. Adjusting plate; 541. Annular groove cavity; 542. Guide block; 6. Drive motor; 61. Transmission gear; 62. Assembly cylinder. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figures 1-4 This utility model provides a tris(hydroxymethyl)aminomethane catalyst filtration and recovery device, including a fixed frame 1, a filter cylinder 2 fixedly installed on the fixed frame 1, a filter assembly 4 disposed inside the filter cylinder 2, a lifting assembly 5 also installed on the fixed frame 1, the filter assembly 4 is rotatably mounted on the adjusting plate 54 of the lifting assembly 5, a drive motor 6 fixedly installed on the adjusting plate 54, and the output end of the drive motor 6 is connected to the filter assembly 4 in a transmission connection.

[0017] In this embodiment, the coordinated design of the lifting component 5 and the filter component 4 enables the rapid disassembly and cleaning of the filter frame 42 and the filter screen. When it is necessary to clean the catalyst residue or reaction byproducts accumulated on the surface of the filter screen, it is only necessary to control the cylinder 51 at the top of the fixing frame 1 to drive the adjusting plate 54 to drive the power column 41 and the multiple filter frames 42 and filter screen below to lift synchronously, so that the entire filter component 4 can be completely removed from the filtration cylinder 2 without disassembling other fixed parts of the filtration cylinder 2. This design completely solves the problem of cumbersome disassembly and time-consuming cleaning caused by the fixed installation of filter materials in the prior art.

[0018] Please see Figure 1 , Figure 3 and Figure 4 The filter assembly 4 includes a power column 41. The lower end of the power column 41 is fixedly connected to several sets of filter frames 42 that are spaced apart along the axial direction. The filter frames 42 are generally circular. From top to bottom, each set of filter frames 42 is respectively equipped with a first filter plate 43, a second filter plate 44, and a third filter plate 45. The pore sizes of the three sets of filter plates are different. Each set of filter frames 42 is arranged on the power column 41 in order from top to bottom according to the pore size of the filter plates from large to small.

[0019] In this embodiment, the circular filter frames 42 distributed at intervals at the lower end of the power column 41, together with the first filter plate 43, the second filter plate 44, and the third filter plate 45 with gradually smaller apertures from top to bottom, achieve graded interception of the catalyst. Large particles are blocked by the upper filter, while fine particles are captured by the lower filter, thereby improving the purity of catalyst recovery. At the same time, the independent filter plate design makes it easy to disassemble and replace them individually, reducing maintenance costs.

[0020] Please see Figure 3 and Figure 4 Each filter frame 42 has a fan-shaped cavity 421, and a slot 422 is formed in the fan-shaped cavity 421. Each first filter plate 43, second filter plate 44 and third filter plate 45 has a protruding locking block 46 at the bottom. The first filter plate 43, second filter plate 44 and third filter plate 45 respectively cooperate with the locking block 46 at the bottom to engage in the corresponding slot 422.

[0021] In this embodiment, the first filter plate 43, the second filter plate 44, and the third filter plate 45 are directly engaged with the slot 422 of the filter frame 42 by the bottom locking block 46, without the need for bolts or other fasteners. During disassembly and assembly, the filter plates can be replaced or cleaned simply by inserting and pulling along the fan-shaped cavity 421.

[0022] Please see Figures 1-3 A cover plate 3 is also fixedly connected to the power column 41. When the third filter plate 45 is initially located at the bottom of the filter cylinder 2, the cover plate 3 just seals against the top of the filter cylinder 2. A feed chamber 31 is opened above the cover plate 3, and a discharge valve 21 is located at the bottom of the filter cylinder 2.

[0023] In this embodiment, the cover plate 3 is fixedly connected to the power column 41 and rises and falls synchronously with the filter assembly 4. During filtration, it seals the filter cartridge 2, and during maintenance, it is lifted together with the filter frame 42 and the filter screen plate. There is no need to disassemble the cover plate 3, which simplifies the operation process.

[0024] Please see Figure 1 and Figure 2A connecting plate 411 is welded to the top of the power column 41. The connecting plate 411 is rotatably installed in the annular groove 541 in the middle of the adjusting plate 54. A U-shaped adapter plate 53 is also fixedly connected to the adjusting plate 54 with bolts. An assembly cylinder 62 is installed below the adapter plate 53. The drive motor 6 is assembled in the assembly cylinder 62. The output end of the drive motor 6 is fixedly connected to a transmission gear 61. The transmission gear 61 is fitted into the tooth cavity in the connecting plate 411. A cylinder 51 is mounted on the top of the fixing frame 1. A connecting block 52 is fixedly connected to the output end of the cylinder 51. The connecting block 52 is fixedly connected to the adapter plate 53 with bolts.

[0025] In this embodiment, the cylinder 51 drives the adjusting plate 54 and the filter assembly 4 to rise and fall as a whole through the connecting block 52 and the adapter plate 53. The drive motor 6 drives the power column 41 and the filter plate to rotate through the tooth cavity of the connecting plate 411 via the transmission gear 61. The two structures are linked and do not interfere with each other, realizing a dynamic separation mechanism of lifting displacement and rotation filtration, thereby improving filtration efficiency and separation effect.

[0026] Please see Figure 1 and Figure 2 The fixed frame 1 has vertical guide grooves 11 on both sides, and the adjusting plate 54 has guide blocks 542 protruding from both ends. The adjusting plate 54 moves up and down along the opening direction of the guide grooves 11 in cooperation with the guide blocks 542 at both ends.

[0027] In this embodiment, the guide block 542 and the guide groove 11 form a sliding fit, which can provide guidance for the vertical displacement of the adjustment plate 54, ensuring that the adjustment plate 54 drives the filter assembly 4 to rise and fall vertically, avoiding lateral offset or tilting, thereby ensuring the sealed connection between the cover plate 3 and the top of the filter cartridge 2.

[0028] Working principle and usage process of this utility model: Before filtration, cylinder 51 drives adjusting plate 54 to move downward along guide grooves 11 on both sides of fixed frame 1 until the third filter screen plate 45 reaches the bottom of filter cylinder 2. Cover plate 3 seals against the top of filter cylinder 2. After the reaction of tris(hydroxymethyl)aminomethane is completed, the reaction liquid with catalyst is introduced into filter cylinder 2 through feed chamber 31 above cover plate 3. At the same time, drive motor 6 starts and meshes with tooth cavity of connecting plate 411 through transmission gear 61, driving power column 41 and filter frame 42 to rotate synchronously. The reaction liquid containing the catalyst flows from top to bottom through each set of filter frames 42. The first filter plate 43, the second filter plate 44, and the third filter plate 45 intercept catalysts of different particle sizes according to the pore size gradient. Large particles are blocked by the upper filter screen, while fine particles are captured by the lower filter screen, thus achieving separation. During the filtration process, the rotation of the filter screen generates centrifugal force, which, together with the dynamic adjustment of the lifting component 5, prevents filter cake accumulation and improves filtration efficiency. After filtration is completed, open the discharge valve 21 at the bottom of the filter cartridge 2 to discharge the purified reaction liquid. When the filter screen needs to be cleaned or replaced, the cylinder 51 drives the adjusting plate 54 to lift, which moves the filter assembly 4 out of the filter cartridge 2 as a whole. Through the locking structure between the fan-shaped cavity 421 of the filter frame 42 and the filter screen plate locking block 46, the corresponding filter screen plate can be quickly inserted and removed for replacement.

[0029] In the above scheme, it should be noted that: the cylinder 51 and the drive motor 6 in this application are existing products, and the cylinder 51 and the drive motor 6 are electrically connected to the external circuit using existing wires. At the same time, the cylinder 51 and the drive motor 6 can be manually turned on or off one by one in sequence. This operation method is a publicly available technical means and will not be described in detail here.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tris(hydroxymethyl)aminomethane catalyst filtration and recovery device, comprising a fixed frame (1), characterized in that: A filter cartridge (2) is fixedly installed on the fixed frame (1). A filter assembly (4) is configured inside the filter cartridge (2). A lifting assembly (5) is also installed on the fixed frame (1). The filter assembly (4) is rotatably mounted on the adjusting plate (54) of the lifting assembly (5). A drive motor (6) is fixedly installed on the adjusting plate (54). The output end of the drive motor (6) is connected to the filter assembly (4) in a transmission manner.

2. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 1, characterized in that: The filter assembly (4) includes a power column (41). The lower end of the power column (41) is fixedly connected to a number of filter frames (42) spaced apart along the axial direction. The filter frames (42) are circular in shape. From top to bottom, each group of filter frames (42) is equipped with a first filter plate (43), a second filter plate (44), and a third filter plate (45). The apertures of the three filter plates are different from each other. Each group of filter frames (42) is arranged on the power column (41) in order from top to bottom according to the aperture of the filter plates from large to small.

3. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 2, characterized in that: Each filter frame (42) has a fan-shaped cavity (421) with a slot (422) formed in the fan-shaped cavity (421). Each first filter plate (43), second filter plate (44) and third filter plate (45) has a protruding block (46) at the bottom. The first filter plate (43), second filter plate (44) and third filter plate (45) respectively engage with the bottom block (46) in the corresponding slot (422).

4. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 2, characterized in that: A cover plate (3) is also fixedly connected to the power column (41). When the third filter plate (45) is initially located at the bottom of the filter cylinder (2), the cover plate (3) seals against the top of the filter cylinder (2). A feed chamber (31) is opened above the cover plate (3), and a discharge valve (21) is located at the bottom of the filter cylinder (2).

5. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 4, characterized in that: The top of the power column (41) is welded with a connecting plate (411). The connecting plate (411) is rotatably installed in the annular groove cavity (541) opened in the middle of the adjusting plate (54). The adjusting plate (54) is also fixedly connected with a U-shaped adapter plate (53) with bolts. An assembly cylinder (62) is installed below the adapter plate (53). The drive motor (6) is assembled in the assembly cylinder (62). The output end of the drive motor (6) is fixedly connected with a transmission gear (61). The transmission gear (61) is fitted into the tooth cavity opened in the connecting plate (411).

6. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 1, characterized in that: The top of the fixed frame (1) is equipped with a cylinder (51), and the output end of the cylinder (51) is fixedly connected to a connecting block (52). The connecting block (52) is fixedly connected to the adapter plate (53) with bolts.

7. The tris(hydroxymethyl)aminomethane catalyst filtration and recovery device according to claim 6, characterized in that: The fixed frame (1) has vertical guide grooves (11) on both sides, and the adjusting plate (54) has guide blocks (542) protruding from both ends. The adjusting plate (54) moves up and down along the opening direction of the guide grooves (11) in cooperation with the guide blocks (542) at both ends.

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