Device for purifying methyltrimethoxysilane

Abstract

The utility model relates to the technical field of purification, and discloses a methyltrimethoxysilane purification device which comprises a connecting square tube, a neutralizing liquid bottle is arranged above the connecting square tube, a distillation bottle is arranged below the connecting square tube, and two groups of filtering components are inserted into one side of the connecting square tube; two groups of sealing grooves are formed in one side of the connecting square pipe; through cooperation of a connecting square pipe and two groups of sealing assemblies, liquid in neutralization liquid can be filtered through a filter screen plate on a lower-layer filter assembly when the filter assembly on the upper layer is dismounted to clean impurities on the filter screen plate, and otherwise, liquid in the neutralization liquid can be filtered through the filter screen plate on the lower-layer filter assembly when impurities on the filter screen plate on the lower-layer filter assembly are cleaned. Impurities can be filtered through the filter screen plate of the upper-layer filter assembly, so that communication between the distillation flask and the neutralization liquid bottle is avoided, continuous filtration of the neutralization liquid is guaranteed, and the filter efficiency is guaranteed while the filter screen plate is conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of purification, in particular to a device for purifying methyltrimethoxysilane. Background Art

[0002] Methyltrimethoxysilane is an organic silane coupling agent, mostly used for hydrophobic treatment of glass fiber surface and surface treatment of plastic laminated products. In its production process, alkali is added to adjust the esterification liquid to pH=7, and then the alcoholization liquid is distilled and purified. However, solid salts will be produced during the neutralization process, affecting the accuracy of purification. Usually, the alcoholization liquid is filtered and then distilled;

[0003] In the prior art, the Chinese utility model with publication number: CN216320488U discloses a continuous purification device for methyltrimethoxysilane in the technical field of liquid purification devices, including a distillation flask, a neutralization liquid bottle and a filter assembly, wherein the lower end of the filter assembly is fixedly connected to the top of the distillation flask, and the upper end of the filter assembly is fixedly connected to the bottom end of the neutralization liquid bottle. The filter assembly includes a connecting shaft, a rotating sleeve, a connecting plate and a filter box, wherein the rotating sleeve is located on the middle outer surface of the connecting shaft, the connecting plates are three in number and evenly distributed on the outer surface of the rotating sleeve, the filter boxes are three in number and are welded and connected to the corresponding connecting plates, and the filter box is truncated in shape. This arrangement has a rotatable filter box, which is convenient for cleaning, does not delay the filtering process, is simple to operate, has good airtightness, and reduces the workload of the staff;

[0004] Although the above technical solution facilitates the quick replacement and cleaning of the filter box, the water inlet and outlet are disconnected during the replacement of the filter box, which may cause external impurities to fall into the distillation flask, and the supply of alcoholization liquid needs to be stopped during the replacement of the filter box, which affects the purity of the purification. Therefore, we need to propose a device for purifying methyltrimethoxysilane. Utility Model Content

[0005] The purpose of the utility model is to provide a device for purifying methyltrimethoxysilane, which uses a multi-layer filter box stacking method to filter the alcoholized liquid, and then when one group of filter boxes is disassembled and cleaned, it will not affect the continuous filtration of the alcoholized liquid, and the purification operation can be carried out uninterruptedly, thereby improving the accuracy of purification, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a device for purifying methyltrimethoxysilane, comprising a connecting square tube, a neutralizing liquid bottle is arranged above the connecting square tube, a distillation bottle is arranged below the connecting square tube, and two groups of filtering components are plugged into one side of the connecting square tube;

[0007] Two sets of sealing grooves are provided on one side of the connecting square tube, and a mounting groove communicating with the two sets of sealing grooves is provided in the inner cavity of the connecting square tube;

[0008] The filter assembly includes a sealing plate and a positioning frame, the sealing plate is embedded in the sealing groove, the positioning frame is inserted in the mounting groove, the positioning frame is fixedly connected to one side of the sealing plate, a plurality of support rods are fixedly connected to the bottom of the inner cavity of the positioning frame, a filter mesh plate is provided in the inner cavity of the positioning frame, and two groups of handles are provided on the upper surface of the filter mesh plate.

[0009] Preferably, a handle is fixedly connected to the other side of the sealing plate, a third sealing gasket for the positioning frame to pass through is arranged in the sealing groove, and one side of the third sealing gasket is in contact with the sealing plate.

[0010] Preferably, two sets of mounting buckle blocks are fixedly connected to both sides of the connecting square tube adjacent to the sealing groove, and a mounting buckle plate that is clamped with the mounting buckle blocks is symmetrically fixedly connected to the other side of the sealing plate.

[0011] Preferably, both ends of the inner cavity of the connecting square tube are provided with docking inner grooves, the upper ends of the connecting square tube and the sealing groove are fixedly connected with two groups of upper buckle blocks on both sides, and the lower ends of the connecting square tube and the sealing groove are fixedly connected with two groups of lower buckle blocks on both sides.

[0012] Preferably, a water inlet pipe is provided at the upper end of the distillation flask, and a first sealing gasket is provided at the upper end of the water inlet pipe, the first sealing gasket is clamped in the docking inner groove connected to the lower end of the square tube, and both sides of the water inlet pipe are fixedly connected with upper buckle plates clamped with lower buckle blocks.

[0013] Preferably, three groups of legs are fixedly connected to the lower end of the distillation flask, and anti-slip pads are fixedly connected to the lower ends of the three groups of legs. One side of the distillation flask is connected to a waste gas recovery bottle through a pipeline.

[0014] Preferably, a downpipe is provided at the lower end of the neutralizing liquid bottle, and a second sealing gasket embedded in the docking inner groove connecting the upper end of the square tube is provided at the lower end of the downpipe, and lower buckle plates clamped with upper buckle blocks are fixedly connected on both sides of the downpipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model mainly connects the square tube and the two groups of sealing components. When the upper filter component is removed to clean the impurities on the filter screen, the liquid in the neutralizing liquid can be filtered through the filter screen on the lower filter component. Conversely, when the impurities on the filter screen of the lower filter component are cleaned, the impurities can be filtered through the filter screen of the upper filter component, thereby avoiding the connection between the distillation flask and the neutralizing liquid bottle, thereby ensuring the continuous filtration of the neutralizing liquid, facilitating the cleaning of the filter screen and ensuring the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the connecting square tube structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0021] In the figure: 1. distillation flask; 101. water inlet pipe; 102. support leg; 103. anti-skid pad; 104. upper buckle plate; 105. first sealing gasket; 2. neutralizing liquid bottle; 201. downpipe; 202. lower buckle plate; 203. second sealing gasket; 3. waste gas recovery bottle; 4. connecting square tube; 401. docking inner groove; 402. sealing groove; 403. third sealing gasket; 404. installation groove; 405. upper buckle block; 406. lower buckle block; 407. installation buckle block; 5. filter assembly; 501. sealing plate; 502. positioning frame; 503. handle; 504. support rod; 505. filter screen; 506. handle; 507. installation buckle plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a device for purifying methyltrimethoxysilane, comprising a connecting square tube 4, a neutralizing liquid bottle 2 is arranged above the connecting square tube 4, a distillation bottle 1 is arranged below the connecting square tube 4, and two groups of filtering components 5 are plugged into one side of the connecting square tube 4;

[0024] Two sets of sealing grooves 402 are provided on one side of the connecting square tube 4, and a mounting groove 404 communicating with the two sets of sealing grooves 402 is provided in the inner cavity of the connecting square tube 4;

[0025] The filter assembly 5 includes a sealing plate 501 and a positioning frame 502. The sealing plate 501 is embedded in the sealing groove 402. The positioning frame 502 is inserted into the mounting groove 404. The positioning frame 502 is fixedly connected to one side of the sealing plate 501. A plurality of support rods 504 are fixedly connected to the bottom of the inner cavity of the positioning frame 502. A filter mesh plate 505 is provided in the inner cavity of the positioning frame 502. Two groups of handles 506 are provided on the upper surface of the filter mesh plate 505.

[0026] A handle 503 is fixedly connected to the other side of the sealing plate 501, and a third sealing gasket 403 is provided in the sealing groove 402 for the positioning frame 502 to pass through. One side of the third sealing gasket 403 is in contact with the sealing plate 501. The handle 503 is used to facilitate quick removal of the sealing assembly, thereby improving convenience. At the same time, the third sealing gasket 403 improves the sealing performance between the sealing plate 501 and the connecting square tube 4.

[0027] Two sets of mounting buckle blocks 407 are fixedly connected on both sides adjacent to the connecting square tube 4 and the sealing groove 402, and a mounting buckle plate 507 that is clamped with the mounting buckle block 407 is symmetrically fixedly connected on the other side of the sealing plate 501. The mounting buckle plate 507 is clamped with the mounting buckle block 407, which facilitates the rapid disassembly and assembly of the filter assembly 5.

[0028] Both ends of the inner cavity of the connecting square tube 4 are provided with docking inner grooves 401, the upper ends of the connecting square tube 4 and the sealing groove 402 are fixedly connected with two groups of upper buckle blocks 405, and the lower ends of the connecting square tube 4 and the sealing groove 402 are fixedly connected with two groups of lower buckle blocks 406. The upper buckle blocks 405 and the lower buckle blocks 406 are conveniently connected to the square tube 4 to quickly connect the distillation flask 1 and the neutralization liquid bottle 2, and the structure is simple.

[0029] A water inlet pipe 101 is arranged at the upper end of the distillation flask 1, and a first sealing gasket 105 is arranged at the upper end of the water inlet pipe 101. The first sealing gasket 105 is clamped in the docking inner groove 401 connected to the lower end of the square tube 4. Both sides of the water inlet pipe 101 are fixedly connected with upper buckle plates 104 clamped with lower buckle blocks 406. The upper buckle plates 104 facilitate the quick installation of the square tube 4 on the water inlet pipe 101, and at the same time, the first sealing gasket 105 improves the sealing of the connection.

[0030] Three groups of legs 102 are fixedly connected to the lower end of the distillation flask 1, and anti-skid pads 103 are fixedly connected to the lower ends of the three groups of legs 102. One side of the distillation flask 1 is connected to a waste gas recovery bottle 3 through a pipeline. By adding water to the waste gas recovery bottle 3, HCI in the waste gas can be absorbed and filtered, thereby reducing air pollution.

[0031] A down pipe 201 is provided at the lower end of the neutralizing liquid bottle 2, and a second sealing gasket 203 is provided at the lower end of the down pipe 201 which is embedded in the docking inner groove 401 at the upper end of the connecting square tube 4. Both sides of the down pipe 201 are fixedly connected with lower buckle plates 202 which are clamped with upper buckle blocks 405. The second sealing gasket 203 improves the sealing between the down pipe 201 and the connecting square tube 4, and the lower buckle plates 202 are clamped with the upper buckle blocks 405 for convenient and quick disassembly and assembly.

[0032] When in use, the installation buckle plate 507 of the upper filter assembly 5 connected to the square tube 4 is pulled to separate the installation buckle plate 507 from the installation buckle block 407, and then the sealing plate 501 and the positioning frame 502 are pulled out through the handle 503, so that the filter screen plate 505 is taken out through the handle 506 for cleaning and washing, and when the upper filter assembly 5 is taken out, the neutralizing liquid can be filtered when entering the distillation flask 1 through the lower filter assembly 5, thereby achieving continuous purification and preventing impurities from entering the distillation flask 1 and affecting the purification purity, and then the cleaned filter screen plate 505 is placed in the positioning frame 502 to reset the upper filter assembly 5, and then repeat the above operation to take out the lower filter assembly 5, and clean the filter screen plate 505, and at the same time filter the neutralizing liquid through the upper filter assembly 5, thereby ensuring continuous filtration of the neutralizing liquid and improving the filtration efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for purifying methyltrimethoxysilane, comprising a connecting square tube (4), characterized in that: A neutralizing liquid bottle (2) is arranged above the connecting square tube (4), a distillation bottle (1) is arranged below the connecting square tube (4), and two groups of filtering components (5) are plugged into one side of the connecting square tube (4); Two groups of sealing grooves (402) are provided on one side of the connecting square tube (4), and an installation groove (404) communicating with the two groups of sealing grooves (402) is provided in the inner cavity of the connecting square tube (4); The filter assembly (5) comprises a sealing plate (501) and a positioning frame (502); the sealing plate (501) is embedded in the sealing groove (402); the positioning frame (502) is plugged into the mounting groove (404); the positioning frame (502) is fixedly connected to one side of the sealing plate (501); a plurality of support rods (504) are fixedly connected to the bottom of the inner cavity of the positioning frame (502); a filter screen plate (505) is arranged in the inner cavity of the positioning frame (502); and two groups of handles (506) are arranged on the upper surface of the filter screen plate (505).

2. A device for purifying methyltrimethoxysilane according to claim 1, characterized in that: A handle (503) is fixedly connected to the other side of the sealing plate (501), and a third sealing gasket (403) for the positioning frame (502) to pass through is arranged in the sealing groove (402), and one side of the third sealing gasket (403) is in contact with the sealing plate (501).

3. A device for purifying methyltrimethoxysilane according to claim 2, characterized in that: Two sets of mounting buckle blocks (407) are fixedly connected to both sides of the connecting square tube (4) adjacent to the sealing groove (402), and a mounting buckle plate (507) that is clamped with the mounting buckle blocks (407) is symmetrically fixedly connected to the other side of the sealing plate (501).

4. A device for purifying methyltrimethoxysilane according to claim 3, characterized in that: Both ends of the inner cavity of the connecting square tube (4) are provided with butt-jointed inner grooves (401); the upper ends of the connecting square tube (4) and the sealing groove (402) are fixedly connected with two groups of upper buckle blocks (405); and the lower ends of the connecting square tube (4) and the sealing groove (402) are fixedly connected with two groups of lower buckle blocks (406).

5. A device for purifying methyltrimethoxysilane according to claim 4, characterized in that: The upper end of the distillation flask (1) is provided with a water inlet pipe (101), and the upper end of the water inlet pipe (101) is provided with a first sealing gasket (105). The first sealing gasket (105) is clamped in the docking inner groove (401) connected to the lower end of the square tube (4). Both sides of the water inlet pipe (101) are fixedly connected with an upper buckle plate (104) clamped with a lower buckle block (406).

6. A device for purifying methyltrimethoxysilane according to claim 5, characterized in that: The lower end of the distillation flask (1) is fixedly connected to three groups of legs (102), and the lower ends of the three groups of legs (102) are fixedly connected to anti-slip pads (103). One side of the distillation flask (1) is connected to a waste gas recovery bottle (3) through a pipeline.

7. A device for purifying methyltrimethoxysilane according to claim 6, characterized in that: A downpipe (201) is provided at the lower end of the neutralizing liquid bottle (2), and a second sealing gasket (203) is provided at the lower end of the downpipe (201) and is embedded in the docking inner groove (401) connected to the upper end of the square tube (4). Both sides of the downpipe (201) are fixedly connected with lower buckle plates (202) that are clamped with upper buckle blocks (405).

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