Filtering structure for preparing nitrobenzofuran

Abstract

The utility model relates to the technical field of nitrobenzofuran preparation, discloses a filtering structure for nitrobenzofuran preparation, and solves the problem that solid impurities and undissolved solids are easily attached to the inner wall of a filter in the filtering process, so that the filter is not easy to clean. A filtering structure for preparing nitrobenzofuran comprises a filtering barrel, a feeding port, a supporting ring, supporting legs, a servo motor, a rotating rod, a driving gear and a cleaning assembly, the servo motor is started to drive the rotating rod to rotate, the rotating rod rotates to drive the driving gear and a driven gear to rotate, the driven gear rotates to drive a threaded rod to rotate, and the threaded rod is driven by the supporting leg to rotate. The rotating direction of the threaded rod is adjusted through the servo motor, so that the first sliding block is conveniently driven to move up and down along the threaded rod, the semi-arc-shaped cleaning plate is driven to move up and down along the inner wall of the filtering barrel to clean the inner wall of the filtering barrel, and the cleaning effect is improved through continuous scraping of the semi-arc-shaped cleaning plate.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrobenzofuran preparation, in particular to a filtering structure for nitrobenzofuran preparation. Background Art

[0002] Nitrobenzofuran is an organic compound whose chemical structure contains a benzene ring and a furan ring, with a nitro group on the benzene ring. It has important uses in medicine, dyes, pesticides and other fields.

[0003] In the process of preparing nitrobenzofuran, the raw material mixture for preparing nitrobenzofuran is cooled, and the reactants are added to dissolve and filter. The filtrate is washed with water until neutral, and the next step is performed after phase separation. During the filtering process, solid impurities and undissolved solids are easy to adhere to the inner wall of the filter, which is difficult to clean. Utility Model Content

[0004] The utility model aims to provide a filtering structure for preparing nitrobenzofuran. The device is used to work, thereby solving the problem that solid impurities and undissolved solids are easily attached to the inner wall of the filter during the filtering process, resulting in difficulty in cleaning.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering structure for preparing nitrobenzofuran, comprising a filtering barrel, a feed port provided at the top of the filtering barrel, a support ring fixedly connected to the outer surface of the filtering barrel, a support leg fixedly connected to the bottom end of the support ring, and a servo motor arranged above the filtering barrel, a rotating rod fixedly connected to the bottom end of the servo motor, a driving gear fixedly connected to the outer surface of the rotating rod, the rotating rod passing through the top of the filtering barrel, and a cleaning component for cleaning the inner wall of the filtering barrel arranged inside the filtering barrel;

[0006] The cleaning assembly includes a driven gear meshingly connected to one side of the driving gear, a threaded rod fixedly connected to the bottom end of the driven gear, a first slider threadedly connected to the outer surface of the threaded rod, a connecting column fixedly connected to one side of the first slider, a semi-arc cleaning plate fixedly connected to one end of the connecting column, and a limit block fixedly connected to the bottom end of the threaded rod, the threaded rod passes through the top of the filter barrel, the driving gear and the driven gear are both arranged above the filter barrel, the semi-arc cleaning plate is in contact with the inner wall of the filter barrel, and the cleaning assembly is provided with two groups.

[0007] Furthermore, a second sliding block is fixedly connected to the outer surface of the semi-arc cleaning plate, a sliding groove is provided on the inner wall of the filter barrel, and the second sliding block is slidably connected to the sliding groove.

[0008] Furthermore, a stirring rod is fixedly connected to the outer surface of the rotating rod, and the stirring rod is arranged inside the filter barrel.

[0009] Furthermore, a filter plate is movably arranged at the bottom end of the filter barrel, a groove is provided on the upper surface of the filter plate, filter holes are provided on the lower surface of the filter plate, and a liquid outlet is fixedly connected to the bottom end of the filter plate.

[0010] Furthermore, a fixing plate is fixedly connected to the outer surface of the filter plate, a fixing groove is opened on the outer surface of the filter barrel, the fixing groove and the fixing plate are arranged correspondingly, and a locking bolt is threadedly connected between the fixing groove and the fixing plate.

[0011] Furthermore, a collecting bottle is arranged directly below the liquid outlet.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides a filtering structure for preparing nitrobenzofuran. By starting a servo motor, the servo motor drives a rotating rod to rotate, the rotating rod rotation drives a driving gear to rotate, the driving gear rotation drives a driven gear to rotate, the driven gear rotation drives a threaded rod to rotate, and the servo motor adjusts the rotation direction of the threaded rod to facilitate driving a first slider to move up and down along the threaded rod. The up and down movement of the first slider drives a connecting column to move up and down, thereby driving a semi-arc cleaning plate to move up and down along the inner wall of the filter barrel to clean the inner wall of the filter barrel. The semi-arc cleaning plate continuously scrapes to improve the cleaning effect, and solves the problem that solid impurities and undissolved solids are easily attached to the inner wall of the filter during the filtering process, resulting in difficulty in cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the filter barrel and filter plate structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the filter barrel of the utility model;

[0017] Figure 4 This is a schematic diagram of the cleaning component structure of the utility model.

[0018] In the figure: 1. filter barrel; 11. support ring; 12. fixing groove; 111. support leg; 2. filter plate; 21. groove; 22. filter hole; 23. fixing plate; 231. locking bolt; 24. liquid outlet; 3. collecting bottle; 4. servo motor; 41. rotating rod; 411. driving gear; 412. stirring rod; 5. cleaning assembly; 51. driven gear; 52. threaded rod; 53. first slider; 54. connecting column; 55. semi-arc cleaning plate; 551. second slider; 56. limit block. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0021] Combination Figure 1-Figure 2 A filtering structure for preparing nitrobenzofuran includes a filtering barrel 1, a feed port opened at the top of the filtering barrel 1, a supporting ring 11 fixedly connected to the outer surface of the filtering barrel 1, a supporting leg 111 fixedly connected to the bottom end of the supporting ring 11, and a servo motor 4 arranged above the filtering barrel 1, a rotating rod 41 fixedly connected to the bottom end of the servo motor 4, a driving gear 411 fixedly connected to the outer surface of the rotating rod 41, the rotating rod 41 passes through the top of the filtering barrel 1, and a cleaning component 5 for cleaning the inner wall of the filtering barrel 1 is arranged inside the filtering barrel 1.

[0022] The utility model is further described below in conjunction with embodiments.

[0023] Embodiment 1:

[0024] See also Figure 1-Figure 4 The cleaning assembly 5 includes a driven gear 51 meshedly connected to one side of the driving gear 411, a threaded rod 52 fixedly connected to the bottom end of the driven gear 51, a first slider 53 threadedly connected to the outer surface of the threaded rod 52, a connecting column 54 fixedly connected to one side of the first slider 53, a semi-arc cleaning plate 55 fixedly connected to one end of the connecting column 54, and a limit block 56 fixedly connected to the bottom end of the threaded rod 52. The threaded rod 52 passes through the top of the filter barrel 1. The driving gear 411 and the driven gear 51 are both arranged above the filter barrel 1. The semi-arc cleaning plate 55 fits with the inner wall of the filter barrel 1. The cleaning assembly 5 is provided with Two groups, start the servo motor 4, the servo motor 4 drives the rotating rod 41 to rotate, the rotating rod 41 drives the driving gear 411 to rotate, the driving gear 411 drives the driven gear 51 to rotate, the driven gear 51 drives the threaded rod 52 to rotate, and the servo motor 4 adjusts the rotation direction of the threaded rod 52 to facilitate driving the first slider 53 to move up and down along the threaded rod 52. The up and down movement of the first slider 53 drives the connecting column 54 to move up and down, thereby driving the semi-arc cleaning plate 55 to move up and down along the inner wall of the filter barrel 1 to clean the inner wall of the filter barrel 1. The semi-arc cleaning plate 55 continuously scrapes to improve the cleaning effect.

[0025] A second slider 551 is fixedly connected to the outer surface of the semi-arc cleaning plate 55, and a slide groove is provided on the inner wall of the filter barrel 1. The second slider 551 is slidably connected to the slide groove. When the semi-arc cleaning plate 55 moves up and down along the inner wall of the filter barrel 1, the second slider 551 slides along the slide groove to play a guiding role.

[0026] The outer surface of the rotating rod 41 is fixedly connected with a stirring rod 412, and the stirring rod 412 is arranged inside the filter barrel 1. The rotating rod 41 rotates to drive the stirring rod 412 to rotate. The rotation of the stirring rod 412 makes the solid particles contact with the filter medium faster, thereby promoting the filtering speed.

[0027] A filter plate 2 is movably arranged at the bottom of the filter barrel 1, a groove 21 is opened on the upper surface of the filter plate 2, a filter hole 22 is opened on the lower surface of the filter plate 2, and a liquid outlet 24 is fixedly connected to the bottom of the filter plate 2. The inside of the groove 21 is used to place filter cotton, and the filter cotton is used to filter solid impurities and undissolved solids. The filtered liquid flows out through the liquid outlet 24.

[0028] A fixing plate 23 is fixedly connected to the outer surface of the filter plate 2, and a fixing groove 12 is opened on the outer surface of the filter barrel 1. The fixing groove 12 and the fixing plate 23 are arranged correspondingly, and a locking bolt 231 is threadedly connected between the fixing groove 12 and the fixing plate 23. In the initial state, the fixing groove 12 and the fixing plate 23 are engaged and connected. The locking bolt 231 is removed to separate the fixing groove 12 from the fixing plate 23, thereby separating the filter plate 2 from the filter barrel 1, so as to facilitate cleaning of the filter plate 2.

[0029] A collecting bottle 3 is arranged directly below the liquid outlet 24 , and the collecting bottle 3 is used to collect the filtrate flowing out of the liquid outlet 24 , so as to facilitate further processing of the filtrate.

[0030] When in use, pour the mixture from the feed port, and the liquid flows into the collecting bottle 3 through the filter cotton, the filter hole 22 and the liquid outlet 24 in turn, so as to facilitate further processing of the filtered liquid. The servo motor 4 is started, and the servo motor 4 drives the rotating rod 41 to rotate. The rotating rod 41 drives the driving gear 411 to rotate. The driving gear 411 drives the driven gear 51 to rotate. The driven gear 51 drives the threaded rod 52 to rotate. The servo motor 4 adjusts the rotation direction of the threaded rod 52 to facilitate driving the first slider 53 to move up and down along the threaded rod 52. The first slider 53 moves up and down. The movement drives the connecting column 54 to move up and down, thereby driving the semi-arc cleaning plate 55 to move up and down along the inner wall of the filter barrel 1 to clean the inner wall of the filter barrel 1. The continuous scraping of the semi-arc cleaning plate 55 improves the cleaning effect. The rotation of the rotating rod 41 drives the stirring rod 412 to rotate at the same time. The rotation of the stirring rod 412 allows the solid particles to contact the filter medium faster, thereby promoting the filtration speed. When cleaning is required, take out the locking bolt 231, separate the fixing groove 12 from the fixing plate 23, thereby separating the filter plate 2 from the filter barrel 1, so as to facilitate comprehensive cleaning of the filter plate 2 and the filter barrel 1.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] 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 filtering structure for preparing nitrobenzofuran, comprising a filtering barrel (1), a feed port provided at the top of the filtering barrel (1), a support ring (11) fixedly connected to the outer surface of the filtering barrel (1), a support leg (111) fixedly connected to the bottom end of the support ring (11), and a servo motor (4) arranged above the filtering barrel (1), characterized in that: The bottom end of the servo motor (4) is fixedly connected to a rotating rod (41), the outer surface of the rotating rod (41) is fixedly connected to a driving gear (411), the rotating rod (41) passes through the top of the filter barrel (1), and a cleaning component (5) for cleaning the inner wall of the filter barrel (1) is arranged inside the filter barrel (1); The cleaning assembly (5) comprises a driven gear (51) meshingly connected to one side of the driving gear (411), a threaded rod (52) fixedly connected to the bottom end of the driven gear (51), a first slider (53) threadedly connected to the outer surface of the threaded rod (52), a connecting column (54) fixedly connected to one side of the first slider (53), a semi-arc cleaning plate (55) fixedly connected to one end of the connecting column (54), and a stopper (56) fixedly connected to the bottom end of the threaded rod (52); the threaded rod (52) passes through the top end of the filter barrel (1); the driving gear (411) and the driven gear (51) are both arranged above the filter barrel (1); the semi-arc cleaning plate (55) is in contact with the inner wall of the filter barrel (1); and the cleaning assembly (5) is provided in two groups.

2. A filtration structure for preparing nitrobenzofuran according to claim 1, characterized in that: A second sliding block (551) is fixedly connected to the outer surface of the semi-arc cleaning plate (55), a sliding groove is provided on the inner wall of the filter barrel (1), and the second sliding block (551) is slidably connected to the sliding groove.

3. The filtration structure for preparing nitrobenzofuran according to claim 1, characterized in that: The outer surface of the rotating rod (41) is fixedly connected to a stirring rod (412), and the stirring rod (412) is arranged inside the filter barrel (1).

4. The filtration structure for preparing nitrobenzofuran according to claim 1, characterized in that: A filter plate (2) is movably arranged at the bottom of the filter barrel (1); a groove (21) is provided on the upper surface of the filter plate (2); filter holes (22) are provided on the lower surface of the filter plate (2); and a liquid outlet (24) is fixedly connected to the bottom end of the filter plate (2).

5. A filtration structure for preparing nitrobenzofuran according to claim 4, characterized in that: The outer surface of the filter plate (2) is fixedly connected to a fixing plate (23); the outer surface of the filter barrel (1) is provided with a fixing groove (12); the fixing groove (12) and the fixing plate (23) are arranged correspondingly; and a locking bolt (231) is threadedly connected between the fixing groove (12) and the fixing plate (23).

6. The filtration structure for preparing nitrobenzofuran according to claim 4, characterized in that: A collecting bottle (3) is arranged directly below the liquid outlet (24).

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