Crude trimethylbenzoyl chloride rectification device

Abstract

The utility model belongs to the technical field of crude trimethylbenzoyl chloride rectification, and discloses a crude trimethylbenzoyl chloride rectification device which comprises a rectification tank, an auxiliary rectification assembly and a limiting assembly are respectively arranged on the inner side of the rectification tank, and the surface of the rectification tank is connected with a stable supporting frame. The surface of the auxiliary rectification assembly is connected with the inner side of the rectification tank, the surface of the limiting assembly is connected with the inner side of the rectification tank, the two rectangular plates are pulled towards the middle, so that the clamping blocks can be conveniently separated from the interior of the rectification tank, and the guide plate can be conveniently taken out of the rectification tank to be replaced or cleaned; similarly, under the external expansion pushing action force of an external expansion spring, a clamping block can be conveniently reset to be clamped with the interior of the rectification tank, so that a flow guide plate is limited in the rectification tank to slow down the flow speed of the crude trimethylbenzoyl chloride raw material, and the rectification effect of the crude trimethylbenzoyl chloride raw material is further improved in an auxiliary manner.

Description

Technical Field

[0001] This invention belongs to the field of crude trimethylbenzoyl chloride distillation technology, specifically a crude trimethylbenzoyl chloride distillation apparatus. Background Technology

[0002] Trimethylbenzoyl chloride is produced from 2,4,6-trimethylbenzoic acid and thionyl chloride through acyl chloride-solvent removal-distillation. The production and processing of trimethylbenzoyl chloride requires distillation, which is a distillation method that uses reflux to highly purify and separate liquid mixtures. It is the most common mixture separation operation in the chemical industry.

[0003] Meanwhile, a chemical distillation apparatus with application number CN202221704200.1 includes a support frame, a distillation tank, a condenser, a reflux pipe, a reheater, a valve pipe, and a filtration mechanism. The top of the support frame is connected to the distillation tank, the left side of the distillation tank has a feed inlet, the top of the distillation tank is connected to the reflux pipe, the upper right side of the distillation tank is also connected to the reflux pipe, the right side of the reflux pipe is connected to the condenser, the lower left and right sides of the distillation tank are connected to the reheater, the bottom of the lower reflux pipe is connected to the valve pipe, and the left side of the distillation tank is equipped with a filtration mechanism.

[0004] However, the following problems were found in the implementation of the relevant technology: the guide plate used for distillation is fixedly installed inside the distillation tank, which makes it inconvenient to replace the guide plate if it needs to be replaced, and it is also inconvenient to clean the guide plate when it needs to be cleaned because the guide plate is installed inside the distillation tank. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a crude trimethylbenzoyl chloride distillation apparatus, which has the advantage of easily disassembling the guide plate from the distillation tank to facilitate replacement or cleaning of the guide plate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crude trimethylbenzoyl chloride distillation apparatus, comprising a distillation tank, wherein an auxiliary distillation component and a limiting component are respectively provided on the inner side of the distillation tank, and a stable support frame is connected to the surface of the distillation tank;

[0007] The surface of the auxiliary distillation component is connected to the inside of the distillation tank;

[0008] The surface of the limiting component is connected to the inside of the distillation tank.

[0009] Preferably, the auxiliary distillation assembly includes two fixed blocks and two connecting rods. The two fixed blocks are both disposed on the inner wall of the distillation tank. The top inner sides of the top of each of the two fixed blocks are engaged with positioning blocks. The two connecting rods are respectively disposed on the top of the two positioning blocks. The surfaces of the two connecting rods are connected to two guide plates.

[0010] Preferably, the surfaces of both positioning blocks are in contact with the inner wall of the distillation tank.

[0011] Preferably, the limiting assembly includes two connecting blocks, two locking blocks, and two long rods. The two connecting blocks are respectively disposed at the top ends of the two connecting rods. Two sliding rods are slidably connected to the inner sides of the two connecting blocks. A rectangular plate is connected to one end of each pair of sliding rods, and a locking block is connected to the other end of each pair of sliding rods. The surfaces of the two long rods are slidably connected to the inner sides of the two rectangular plates. An outward expansion spring is sleeved on the surface of each of the two long rods, and a limiting plate is connected to both ends of the two long rods.

[0012] Preferably, the surfaces of both of the locking blocks are engaged with the inside of the distillation tank.

[0013] Preferably, the surfaces of the two card blocks are slidably connected to the inner sides of the two connecting blocks, respectively.

[0014] Preferably, the two ends of the two outward-expanding springs are respectively connected to the surfaces of the two rectangular plates.

[0015] Preferably, the diameter of each of the four limiting discs is larger than the diameter of the two long rods.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses a flow guide plate to slow down the flow rate of crude trimethylbenzoyl chloride raw material, thereby improving the distillation effect of the distillation tank on crude trimethylbenzoyl chloride raw material. Furthermore, the corresponding engagement of the positioning block and the fixing block facilitates the initial positioning of the flow guide plate inside the distillation tank, which is beneficial for subsequent installation of the flow guide plate.

[0018] 2. This utility model facilitates the separation of the locking block from the interior of the distillation tank by pulling the two rectangular plates towards the center, making it easy to remove the guide plate from the distillation tank for replacement or cleaning. Similarly, the outward pushing force of the outward expanding spring facilitates the locking block to reset and engage with the interior of the distillation tank, thereby limiting the guide plate inside the distillation tank to slow down the flow rate of crude trimethylbenzoyl chloride raw material, thus helping to improve the distillation effect of crude trimethylbenzoyl chloride raw material. The diameter of the limiting plate is larger than the diameter of the long rod, thus effectively preventing the rectangular plate from separating from the long rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is one of the partial cross-sectional structural schematic diagrams of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0022] Figure 4 This is a partial structural schematic diagram of the present invention;

[0023] Figure 5 This is the second partial cross-sectional structural schematic diagram of this utility model.

[0024] In the diagram: 1. Distillation tank;

[0025] 2. Auxiliary distillation assembly; 21. Fixing block; 22. Positioning block; 23. Connecting rod; 24. Flow guide plate;

[0026] 3. Limiting component; 31. Connecting block; 32. Slide rod; 33. Rectangular plate; 34. Locking block; 35. Long rod; 36. Outward expansion spring; 37. Limiting plate;

[0027] 4. Stable support frame. Detailed Implementation

[0028] 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.

[0029] like Figures 1 to 5 As shown, this utility model provides a crude trimethylbenzoyl chloride distillation apparatus, including a distillation tank 1, an auxiliary distillation component 2 and a limiting component 3 respectively arranged on the inner side of the distillation tank 1, and a stable support frame 4 connected to the surface of the distillation tank 1.

[0030] The surface of the auxiliary distillation component 2 is connected to the inside of the distillation tank 1;

[0031] The surface of the limiting component 3 is connected to the inner side of the distillation tank 1.

[0032] Specifically, the auxiliary distillation assembly 2 includes two fixing blocks 21 and two connecting rods 23. The two fixing blocks 21 are both disposed on the inner wall of the distillation tank 1. The top inner side of the two fixing blocks 21 is engaged with a positioning block 22. The two connecting rods 23 are respectively disposed on the top of the two positioning blocks 22. The surfaces of the two connecting rods 23 are connected to two guide plates 24.

[0033] Furthermore, the surfaces of both positioning blocks 22 are in contact with the inner wall of the distillation tank 1.

[0034] Furthermore, the limiting component 3 includes two connecting blocks 31, two locking blocks 34, and two long rods 35. The two connecting blocks 31 are respectively disposed at the top ends of the two connecting rods 23. Two sliding rods 32 are slidably connected to the inner side of each of the two connecting blocks 31. A rectangular plate 33 is connected to one end of each pair of sliding rods 32, and a locking block 34 is connected to the other end of each pair of sliding rods 32. The surfaces of the two long rods 35 are slidably connected to the inner sides of the two rectangular plates 33. An outward expansion spring 36 is sleeved on the surface of each of the two long rods 35, and a limiting plate 37 is connected to both ends of each of the two long rods 35.

[0035] It is worth noting that the surfaces of both of the locking blocks 34 are engaged with the inner side of the distillation tank 1.

[0036] It is worth noting that the surfaces of the two card blocks 34 are slidably connected to the inner sides of the two connecting blocks 31, respectively.

[0037] It is worth mentioning that the two ends of the two outwardly expanding springs 36 are respectively connected to the surfaces of the two rectangular plates 33.

[0038] It is worth emphasizing that the diameter of all four limiting discs 37 is larger than the diameter of the two long rods 35.

[0039] The guide plate 24 is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, rear, left, and right" views of this device are... Figure 1 The direction shown in the diagram is the reference.

[0040] Working principle: First, crude trimethylbenzoyl chloride feedstock is fed into distillation tank 1 through an external feed pipe for distillation. During distillation, as the amount of crude trimethylbenzoyl chloride feedstock gradually increases, it gradually drips down through the surfaces of the two guide plates 24. The guide plates 24 slow down the flow of the distilled crude trimethylbenzoyl chloride feedstock, improving the distillation effect to some extent. After the distillation of crude trimethylbenzoyl chloride feedstock is completed in distillation tank 1, the interior of distillation tank 1 needs to be cleaned periodically. At this time, the two rectangular plates 33 are pulled towards the center, bringing them closer together. Under the sliding action of the slide rod 32, the two locking blocks 34 are brought closer together, causing both locking blocks 34 to separate from the inner wall of distillation tank 1. Then, the long rod 35 can be pulled upwards to move the positioning block 22 and... The guide plate 24, which is attached to the inner wall of the distillation tank 1, is pulled upwards and separated from the distillation tank 1. This facilitates cleaning and replacement of the guide plate 24, reducing cleaning workload and improving the efficiency of cleaning the inner wall of the distillation tank 1. Similarly, when the guide plate 24 needs to be installed inside the distillation tank 1, the two rectangular plates 33 are pulled towards the center, and then the positioning block 22 is inserted into the fixing block 21. At this time, the two locking blocks 34 correspond to the inside of the distillation tank 1. Then, the two rectangular plates 33 are released, and the two locking blocks 34 will pop out and engage with the inside of the distillation tank 1 under the outward pushing action of the outward expanding spring 36. This makes it easy to remove, replace, or clean the guide plate 24, and also easy to install the guide plate 24 to the distillation tank 1. Cleaning and replacing the guide plate 24 helps to improve the distillation effect, and the operation is simple.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distillation apparatus for crude trimethylbenzoyl chloride comprising a distillation vessel (1), characterised in that: The inner side of the rectifying tank (1) is respectively provided with an auxiliary rectifying assembly (2) and a limiting assembly (3), and the surface of the rectifying tank (1) is connected with a stable support frame (4); The surface of the auxiliary rectifying assembly (2) is connected with the inner side of the rectifying tank (1); The surface of the limiting assembly (3) is connected with the inner side of the rectifying tank (1).

2. The crude trimethylbenzoyl chloride rectification device according to claim 1, characterized in that: The auxiliary rectifying assembly (2) comprises two fixed blocks (21) and two connecting rods (23), the two fixed blocks (21) are arranged on the inner wall of the rectifying tank (1), the inner side of the top end of the two fixed blocks (21) is clamped and connected with a positioning block (22), and the two connecting rods (23) are arranged at the top end of the two positioning blocks (22).

3. The crude trimethylbenzoyl chloride rectification device according to claim 2, characterized in that: The surface of the two positioning blocks (22) is matched with the inner wall of the rectifying tank (1).

4. The crude trimethylbenzoyl chloride rectification device according to claim 2, characterized in that: The limiting assembly (3) comprises two connecting blocks (31), two clamping blocks (34) and two long rods (35), the two connecting blocks (31) are arranged at the top end of the two connecting rods (23), the inner side of the two connecting blocks (31) is slidably connected with two slide rods (32), one end of every two slide rods (32) is connected with a rectangular plate (33), the other end of every two slide rods (32) is connected with a clamping block (34), the surface of the two long rods (35) is slidably connected with the inner side of the two rectangular plates (33), the surface of the two long rods (35) is sleeved with an outward expanding spring (36), and the two ends of the two long rods (35) are connected with a limiting disc (37).

5. The crude trimethylbenzoyl chloride rectification device according to claim 4, characterized in that: The surface of the two clamping blocks (34) is clamped and connected with the inner side of the rectifying tank (1).

6. The crude trimethylbenzoyl chloride rectification device according to claim 4, characterized in that: The surface of the two clamping blocks (34) is slidably connected with the inner side of the two connecting blocks (31).

7. The crude trimethylbenzoyl chloride rectification device according to claim 4, characterized in that: The two ends of the two outward expanding springs (36) are respectively connected with the surface of the two rectangular plates (33).

8. The crude trimethylbenzoyl chloride rectification device according to claim 4, characterized in that: The diameters of the four limiting discs (37) are greater than the diameters of the two long rods (35).

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