Continuous tower type reaction device for dimethyl maleate

Abstract

The utility model relates to the technical field of fine chemical engineering, and particularly discloses a dimethyl maleate continuous tower type reaction device which comprises a reaction tower, a filter assembly transversely arranged in the reaction tower, and an extraction mechanism arranged on the reaction tower and used for transversely moving the filter assembly, and the extraction mechanism is connected with the filter assembly; the extraction mechanism comprises a lifting assembly fixed on the outer wall of the reaction tower, a connecting seat is fixed at the lower end of the filtering assembly, a supporting rod is rotatably connected between the lifting assembly and the connecting seat, the lifting assembly comprises a mounting plate and a supporting frame which are arranged on the lower side of the filtering assembly, and a lead screw and a guide column are vertically arranged on the mounting plate and the supporting frame. Through the arrangement of the extraction mechanism on the reaction tower, a lead screw of the lifting assembly rotates, the lifting frame is pushed to move up and down, a supporting rod on the lifting frame drives the filtering assembly to be extracted from or fed into the reaction tower, automatic loading and unloading of the filtering assembly are completed, a filtering plate is convenient to clean or replace, and the operation convenience and the use effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fine chemical industry, in particular to a continuous tower reaction device for dimethyl maleate. Background Art

[0002] The existing announcement number is CN 213286788 U. A continuous tower reaction device for dimethyl maleate, when the filter plate needs to be cleaned, press the two driving rods to make the two driving rods rotate in the opposite direction, thereby driving the end of the driving rod close to the fixed box away from the fixed box, due to the connection relationship between the driving rod, the transmission hole and the transmission block, the transmission block can be driven to move in the direction away from the fixed box, and then drive the transmission rod fixedly connected to the transmission block to move, due to the fixed connection relationship between the transmission rod and the fixed block, the fixed block is moved and the spring is compressed, when the fixed block moves out of the fixed groove, the restriction on the filter plate is released, so that the filter plate can be removed for cleaning, after the filter plate is cleaned, the filter plate is inserted into the mounting groove from the mounting hole, and then the two driving rods are released, due to the elastic force of the spring, the fixed block is squeezed to move, so that the fixed block is reinserted into the fixed groove, thereby completing the rapid installation of the filter plate. However, the above-mentioned filter plate cannot be fixed and self-locked, and needs to be manually extracted, which causes inconvenience to use and affects the use effect. Utility Model Content

[0003] The purpose of the utility model is to provide a dimethyl maleate continuous tower reaction device in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A dimethyl maleate continuous tower reaction device comprises a reaction tower, a filter assembly is transversely arranged in the reaction tower, and an extraction mechanism is arranged on the reaction tower and used for transversely moving the filter assembly, wherein the extraction mechanism is connected to the filter assembly; the extraction mechanism comprises a lifting assembly fixed on the outer wall of the reaction tower, a connecting seat is fixed at the lower end of the filter assembly, a support rod is rotatably connected between the lifting assembly and the connecting seat, the lifting assembly comprises a mounting plate and a support frame arranged at the lower side of the filter assembly, a lead screw and a guide column are vertically arranged on the mounting plate and the support frame, a lifting frame is installed on the lead screw and the guide column, and a power assembly is connected to the lower end of the lead screw.

[0006] Further configuration: the lifting frame is threadedly connected to the lead screw, the lifting frame is slidingly connected to the guide column, and the lead screw is rotationally connected to the mounting plate and the support frame.

[0007] Further configuration: the support rod is provided at two locations, and the support rod is rotatably connected to the lifting frame.

[0008] Further configuration: the power assembly includes a transmission shaft rotatably mounted on a support frame, a first bevel gear is fixed to the lower end of the lead screw, a second bevel gear meshing with the first bevel gear is fixed to one end of the transmission shaft, a worm wheel is mounted on the transmission shaft, a worm gear meshing with the worm gear is rotatably mounted on the support frame, and a servo motor is connected to the lower end of the worm gear.

[0009] Further configuration: the filter assembly includes a filter frame, a baffle is fixed at one end of the filter frame located outside the reaction tower, a step is arranged inside the filter frame, a filter plate is arranged at the bottom of the step, a sealing ring is arranged on the outer ring of the filter plate, sealing gaskets are arranged on the upper and lower end surfaces of the filter frame, and a pressure ring is installed on the filter frame on the upper side of the filter plate.

[0010] Further configuration: a limiting assembly is arranged between the baffle and the reaction tower, the limiting assembly includes a limiting platform fixed on the upper end of the baffle, an annular frame is fixed on the side wall of the reaction tower, a limiting column is passed through the annular frame, the annular frame and the limiting column are arranged at two locations, and a connecting plate is fixed on the upper end of the limiting column.

[0011] Further configuration: the limiting column is slidably matched with the annular frame, the limiting platform is arranged with an inclined surface close to the reaction tower, and the inclined surface is inclined downward toward the reaction tower, and the lower end surface of the limiting column is arranged with an inclined surface matched with the limiting platform.

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

[0013] By setting the extraction mechanism on the reaction tower, the lead screw of the lifting assembly rotates, pushing the lifting frame to move up and down, and the support rod on the lifting frame drives the filter assembly to be extracted from or sent into the reaction tower, completing the automatic loading and unloading of the filter assembly, making it easy to clean or replace the filter plate, thereby improving the convenience of operation and the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a partial structural schematic diagram of a dimethyl maleate continuous tower reaction device described in the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the right cross-section structure;

[0017] Figure 3 It is a structural schematic diagram of an extraction mechanism of a dimethyl maleate continuous tower reaction device described in the utility model;

[0018] Figure 4 It is a structural schematic diagram of another viewing angle of the extraction mechanism of the dimethyl maleate continuous tower reaction device of the utility model;

[0019] Figure 5 It is a partial structural schematic diagram of an extraction mechanism of a dimethyl maleate continuous tower reaction device described in the utility model;

[0020] Figure 6 It is a schematic structural diagram of a filter assembly of a dimethyl maleate continuous tower reaction device in a decomposed state according to the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Reaction tower; 21. Filter frame; 22. Baffle; 23. Filter plate; 24. Press ring; 25. Sealing gasket; 26. Sealing ring; 31. Mounting plate; 32. Support frame; 33. Screw; 34. Guide column; 35. Lifting frame; 36. Connecting seat; 37. Support rod; 38. First bevel gear; 39. Transmission shaft; 310. Second bevel gear; 311. Worm gear; 312. Worm; 313. Servo motor; 41. Limiting table; 42. Ring frame; 43. Limiting column; 44. Connecting plate. DETAILED DESCRIPTION

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 6 As shown, a continuous tower reaction device for dimethyl maleate comprises a reaction tower 1, a filter assembly is transversely arranged in the reaction tower 1, and an extraction mechanism is arranged on the reaction tower 1 for transversely moving the filter assembly, the extraction mechanism is connected to the filter assembly, and a limiting assembly is arranged between the filter assembly and the reaction tower 1;

[0027] In this embodiment: the filter assembly includes a filter frame 21, and a baffle 22 is fixed at one end of the filter frame 21 located outside the reaction tower 1. A step is arranged inside the filter frame 21, and a filter plate 23 is arranged at the bottom of the step. A sealing ring 26 is arranged on the outer ring of the filter plate 23, and a sealing gasket 25 is arranged on the upper and lower end surfaces of the filter frame 21. A pressure ring 24 is installed on the filter frame 21 on the upper side of the filter plate 23. The pressure ring 24 is fixed to the filter frame 21 by screws to press and limit the filter plate 23, and the sealing ring 26 and the sealing gasket 25 ensure the sealing of the filter frame 21 and the upper and lower sides of the filter plate 23.

[0028] In this embodiment: the extraction mechanism includes a lifting assembly fixed on the outer wall of the reaction tower 1, a connecting seat 36 is fixed at the lower end of the filter assembly, and a support rod 37 is rotatably connected between the lifting assembly and the connecting seat 36. The lifting assembly includes a mounting plate 31 and a support frame 32 arranged at the lower side of the filter assembly, and a lead screw 33 and a guide column 34 are vertically arranged on the mounting plate 31 and the support frame 32. A lifting frame 35 is installed on the lead screw 33 and the guide column 34, and the lifting frame 35 is threadedly connected to the lead screw 33, and the lifting frame 35 is slidably connected to the guide column 34. The lead screw 33 is rotatably connected to the mounting plate 31 and the support frame 32, and the support rod 37 is arranged at two places, and the support rod 37 is rotatably connected to the lifting frame 35; the lower end of the lead screw 33 is connected to a power assembly, and the power assembly includes a transmission shaft 39 rotatably mounted on the support frame 32, and the lower end of the lead screw 33 is fixed with a first bevel gear 38, and one end of the transmission shaft 39 is fixed with a gear meshing with the first bevel gear 38. The second bevel gear 310 and the transmission shaft 39 are provided with a worm wheel 311. The support frame 32 is rotatably provided with a worm 312 meshing with the worm wheel 311. The lower end of the worm 312 is connected to a servo motor 313. The servo motor 313 works to make the worm 312 mesh with the worm wheel 311 and rotate. The second bevel gear 310 at the end of the transmission shaft 39 and the first bevel gear 38 transmit power to make the lead screw 33 rotate, and the lifting frame 35 is pushed to move upward under the limit of the guide column 34. The support rod 37 on the lifting frame 35 pushes the baffle plate 22 and the filter frame 21 to be pulled out of the reaction tower 1 as a whole. Then the pressure ring 24 is removed and the filter plate 23 is cleaned or replaced. The servo motor 313 rotates in the opposite direction, and the lead screw 33 drives the lifting frame 35 to move downward, so that the angle between the support rod 37 and the filter frame 21 becomes larger, and the filter frame 21 is sent into the reaction tower 1, completing the loading and unloading operation of the filter frame 21.

[0029] In this embodiment: the limiting assembly includes a limiting platform 41 fixed to the upper end of the baffle 22, an annular frame 42 is fixed on the side wall of the reaction tower 1, and a limiting column 43 is pierced on the annular frame 42, and the annular frame 42 and the limiting column 43 are both provided with two locations, and a connecting plate 44 is fixed to the upper end of the limiting column 43; the limiting column 43 is slidably matched with the annular frame 42, and the side of the limiting platform 41 close to the reaction tower 1 is set as an inclined surface, and the inclined surface is inclined downward toward the reaction tower 1, and the lower end surface of the limiting column 43 is set as an inclined surface matched with the limiting platform 41. When the filter frame 21 is sent into the reaction tower 1, the limiting platform 41 pushes the limiting column 43 to move upward until the limiting column 43 falls by gravity to limit the limiting platform 41, thereby ensuring the stability of the limiting support of the filter frame 21. When the filter plate 23 needs to be extracted and replaced, the connecting plate 44 and the limiting column 43 are lifted upward so that the limiting column 43 is higher than the limiting platform 41, so as to facilitate the extraction of the filter frame 21.

[0030] The working principle and use process of the utility model are as follows: when the filter plate 23 needs to be extracted and replaced, the connecting plate 44 and the limiting column 43 are lifted upward so that the limiting column 43 is higher than the limiting platform 41, and the servo motor 313 works to make the worm 312 mesh and rotate with the worm wheel 311, and the second bevel gear 310 at the end of the transmission shaft 39 and the first bevel gear 38 transmit power to make the lead screw 33 rotate, and push the lifting frame 35 to move upward under the limit of the guide column 34, and the support rod 37 on the lifting frame 35 pushes the baffle 22 and the filter frame 21 to translate as a whole toward the outside of the reaction tower 1, and then the pressure ring 24 is removed, and the filter plate 23 is cleaned or replaced, and then the servo motor 313 rotates in the opposite direction, and the lead screw 33 drives the lifting frame 35 to move downward, so that the angle between the support rod 37 and the filter frame 21 becomes larger, and the filter frame 21 is sent into the reaction tower 1, until the limiting platform 41 pushes the limiting column 43 to move upward, and the limiting column 43 falls by gravity to limit the limiting platform 41.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A continuous tower reaction device for dimethyl maleate, comprising a reaction tower (1), wherein a filtering assembly is disposed transversely in the reaction tower (1), characterized in that: It also includes an extraction mechanism arranged on the reaction tower (1) for laterally moving the filter assembly, the extraction mechanism being connected to the filter assembly; the extraction mechanism includes a lifting assembly fixed on the outer wall of the reaction tower (1), a connecting seat (36) being fixed at the lower end of the filter assembly, a support rod (37) being rotatably connected between the lifting assembly and the connecting seat (36), the lifting assembly including a mounting plate (31) and a support frame (32) arranged at the lower side of the filter assembly, a lead screw (33) and a guide column (34) being vertically arranged on the mounting plate (31) and the support frame (32), a lifting frame (35) being installed on the lead screw (33) and the guide column (34), and a power assembly being connected to the lower end of the lead screw (33).

2. A dimethyl maleate continuous tower reaction device according to claim 1, characterized in that: The lifting frame (35) is threadedly connected to the lead screw (33), the lifting frame (35) is slidably connected to the guide column (34), and the lead screw (33) is rotatably connected to the mounting plate (31) and the support frame (32).

3. A dimethyl maleate continuous tower reaction device according to claim 2, characterized in that: The support rod (37) is provided at two locations, and the support rod (37) is rotatably connected to the lifting frame (35).

4. A dimethyl maleate continuous tower reaction device according to claim 1, characterized in that: The power assembly comprises a transmission shaft (39) rotatably mounted on the support frame (32); a first bevel gear (38) is fixed to the lower end of the lead screw (33); a second bevel gear (310) meshing with the first bevel gear (38) is fixed to one end of the transmission shaft (39); a worm wheel (311) is mounted on the transmission shaft (39); a worm (312) meshing with the worm wheel (311) is rotatably arranged on the support frame (32); and a servo motor (313) is connected to the lower end of the worm (312).

5. A dimethyl maleate continuous tower reaction device according to claim 1, characterized in that: The filter assembly comprises a filter frame (21), a baffle (22) being fixed to one end of the filter frame (21) located outside the reaction tower (1), a step being arranged inside the filter frame (21), a filter plate (23) being arranged at the bottom of the step, a sealing ring (26) being arranged on the outer ring of the filter plate (23), sealing gaskets (25) being arranged on the upper and lower end surfaces of the filter frame (21), and a pressure ring (24) being installed on the filter frame (21) at the upper side of the filter plate (23).

6. A dimethyl maleate continuous tower reaction device according to claim 5, characterized in that: A limiting assembly is arranged between the baffle plate (22) and the reaction tower (1), the limiting assembly comprising a limiting platform (41) fixed to the upper end of the baffle plate (22), an annular frame (42) is fixed to the side wall of the reaction tower (1), a limiting column (43) is passed through the annular frame (42), the annular frame (42) and the limiting column (43) are both arranged at two locations, and a connecting plate (44) is fixed to the upper end of the limiting column (43).

7. A dimethyl maleate continuous tower reaction device according to claim 6, characterized in that: The limiting column (43) is slidably matched with the annular frame (42); the limiting platform (41) is provided with an inclined surface on a side close to the reaction tower (1), and the inclined surface is inclined downward toward the reaction tower (1); and the lower end surface of the limiting column (43) is provided with an inclined surface matched with the limiting platform (41).

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