A chlorotoluene chlorination reactor based on photochlorination

Abstract

This invention discloses a chlorotoluene chlorination reactor based on photochlorination, comprising a reactor body with a lid, several ultraviolet lamps arranged in a ring array between the reactor body and a quartz protective cover, a chlorine gas inlet distribution assembly located at the bottom of the reactor body, and a vortex stirring assembly located inside the reactor body. In this invention, the ultraviolet light source is uniformly irradiated into the reactor body when the ultraviolet lamps pass through the reflector strip, causing the chlorotoluene material to undergo a photochlorination reaction. The vortex ring at the bottom of the reactor body creates a vortex effect on the chlorotoluene material, causing the chlorotoluene material to rotate in the vortex. The stirring blades create a shearing force, ensuring that the chlorotoluene material is fully mixed and participates in the photochlorination reaction. The arc-shaped stirring blades allow the chlorotoluene material to flow and stir from the center to the periphery in the reactor body, further ensuring that the chlorotoluene material has sufficient contact with the ultraviolet light source and improving the efficiency of the photochlorination reaction.

Description

Technical Field

[0001] This utility model belongs to the technical field of chlorotoluene photochlorination reaction equipment, specifically relating to a chlorotoluene chlorination reactor based on photochlorination. Background Technology

[0002] In the chlorination process of chlorotoluene, photochlorination is a commonly used process.

[0003] Existing photochlorination reactors have many problems: unreasonable light source arrangement leads to uneven illumination, and insufficient material mixing and photo-reaction affect reaction efficiency. To address this, we propose a photochlorination-based chlorotoluene chlorination reactor. Utility Model Content

[0004] The purpose of this invention is to provide a photochlorination-based chlorotoluene chlorination reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chlorotoluene chlorination reactor based on photochlorination, comprising:

[0006] A vessel body, on which a lid is provided;

[0007] A plurality of ultraviolet lamps are provided, and the plurality of ultraviolet lamps are arranged in a ring array between the vessel body and the quartz protective cover;

[0008] A chlorine gas inlet distribution assembly is disposed at the bottom of the reactor body;

[0009] A vortex stirring assembly is disposed within the reactor vessel.

[0010] Preferably, the inner wall of the vessel body is provided with an annular groove, and a plurality of ultraviolet lamps are arranged in a ring array within the annular groove. The quartz protective cover is sealed on the annular groove to seal and isolate the vessel body and the ultraviolet lamps.

[0011] Preferably, the upper end of the annular groove extends through the upper end of the vessel body.

[0012] Preferably, a reflective strip is provided between adjacent ultraviolet lamps in the annular groove, and the reflective strip is a reflective strip that is inclined on both sides.

[0013] Preferably, the chlorine gas inlet distribution assembly includes a chlorine gas inlet pipe and a gas distributor;

[0014] The chlorine gas inlet pipe is located at the bottom of the vessel and extends into the vessel body, while the gas distributor is located at the upper end of the chlorine gas inlet pipe.

[0015] Preferably, the vortex stirring assembly includes a stirring motor, a transmission rod, stirring blades, and a vortex ring frame;

[0016] The stirring motor is located at the upper end of the vessel body. The transmission rod is connected to the output end of the stirring motor and extends into the bottom of the vessel body. Several sets of stirring blades are provided, and the several sets of stirring blades are distributed at equal intervals on the transmission rod. The vortex ring frame is located at the bottom of the transmission rod.

[0017] Preferably, the stirring blade is an arc-shaped blade.

[0018] Preferably, the upper end of the vessel is provided with a feed inlet and a reflux and gas phase inlet.

[0019] Preferably, the bottom of the vessel is provided with a discharge port.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention features a reactor with a ring-shaped array of ultraviolet lamps and inclined reflective strips between adjacent lamps. It also includes a chlorine gas inlet distribution assembly and a vortex stirring assembly. In use, chlorotoluene enters the reactor through the inlet, while chlorine gas enters the gas distributor through the chlorine inlet pipe and is evenly distributed throughout the reactor. As the ultraviolet lamps pass through the reflective strips, the ultraviolet light source evenly illuminates the reactor, causing the chlorotoluene to undergo a photochlorination reaction. Simultaneously, the stirring motor drives the transmission rod, stirring blades, and vortex ring frame to rotate. The vortex ring frame creates a vortex effect on the chlorotoluene at the bottom of the reactor, causing the chlorotoluene to rotate and, through the stirring blades, generate shear force, ensuring thorough mixing and participation in the photochlorination reaction. The arc-shaped stirring blades, during rotation, allow the chlorotoluene to flow and stir from the center outwards within the reactor, further maximizing contact between the chlorotoluene and the ultraviolet light source and improving the efficiency of the photochlorination reaction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0025] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0026] Figure 5 This is a top sectional view of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the vortex stirring assembly of this utility model.

[0028] In the diagram: 1. Kettle body; 101. Annular groove; 2. Cover; 3. Ultraviolet lamp; 4. Quartz protective cover; 5. Chlorine gas inlet distribution assembly; 501. Chlorine gas inlet pipe; 502. Gas distributor; 6. Vortex stirring assembly; 601. Stirring motor; 602. Drive rod; 603. Stirring blades; 604. Vortex ring frame; 7. Reflector strip; 8. Feed inlet; 9. Reflux and gas phase inlet; 10. Discharge outlet. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 The chlorotoluene chlorination reactor based on photochlorination provided by this utility model includes:

[0031] The vessel body 1 has a cover 2 on it. The upper end of the vessel body 1 has a feed inlet 8 and a reflux and gas phase inlet 9. The bottom of the vessel body 1 has a discharge outlet 10.

[0032] The ultraviolet lamps 3 are arranged in a ring array between the vessel body 1 and the quartz protective cover 4. The inner side wall of the vessel body 1 is provided with an annular groove 101. The ultraviolet lamps 3 are arranged in a ring array within the annular groove 101. The quartz protective cover 4 is sealed on the annular groove 101 to seal and isolate the vessel body 1 and the ultraviolet lamps 3, preventing the ultraviolet lamps 3 from directly contacting the reaction liquid and ensuring the normal use of the ultraviolet lamps 3. Reflective strips 7 are provided between adjacent ultraviolet lamps 3 within the annular groove 101. The reflective strips 7 are reflective strips that are inclined on both sides.

[0033] The chlorine gas inlet distribution assembly 5 is located at the bottom of the vessel body 1. The chlorine gas inlet distribution assembly 5 includes a chlorine gas inlet pipe 501 and a gas distributor 502. The chlorine gas inlet pipe 501 is located at the bottom of the vessel body 1 and extends into the vessel body 1. The gas distributor 502 is located at the upper end of the chlorine gas inlet pipe 501.

[0034] The vortex stirring assembly 6 is installed inside the vessel body 1. The vortex stirring assembly 6 includes a stirring motor 601, a transmission rod 602, stirring blades 603, and a vortex ring frame 604. The stirring motor 601 is located at the upper end of the vessel body 1. The transmission rod 602 is connected to the output end of the stirring motor 601 and extends into the bottom of the vessel body 1. Several sets of stirring blades 603 are provided, and the several sets of stirring blades 603 are distributed at equal intervals on the transmission rod 602. The vortex ring frame 604 is located at the bottom of the transmission rod 602. The stirring blades 603 are arc-shaped blades.

[0035] This invention features a ring-shaped array of ultraviolet lamps 3 inside the vessel body 1, with inclined reflective strips 7 between adjacent ultraviolet lamps 3. It also includes a chlorine gas inlet distribution assembly 5 and a vortex stirring assembly 6. In use, chlorotoluene material enters the vessel body 1 through the feed inlet 8, and chlorine gas enters the gas distributor 502 through the chlorine gas inlet pipe 501, where it is evenly distributed into the vessel body 1. When the ultraviolet lamps 3 pass through the reflective strips 7, the ultraviolet light source evenly irradiates the vessel body 1, causing the chlorotoluene material to undergo a photochlorination reaction. At this time, the stirring motor 601 drives the transmission... The moving rod 602, stirring blade 603, and vortex ring frame 604 rotate. The vortex ring frame 604 forms a vortex effect on the chlorotoluene material at the bottom of the reactor body 1, causing the chlorotoluene material to rotate in a vortex. The stirring blade 603 generates a shearing force, which ensures that the chlorotoluene material is fully mixed and participates in the photochlorination reaction. The stirring blade 603 is an arc-shaped blade. During rotation, the arc-shaped stirring blade 603 can make the chlorotoluene material flow and stir from the center to the periphery in the reactor body 1, further ensuring that the chlorotoluene material comes into full contact with the ultraviolet light source and improving the efficiency of the photochlorination reaction.

[0036] In this embodiment, as Figure 2 and Figure 3 As shown, the upper end of the annular groove 101 penetrates the upper end of the vessel body 1. Only the cover 2 needs to be removed to maintain and replace the ultraviolet lamp 3, which facilitates the subsequent maintenance and replacement of the ultraviolet lamp 3.

[0037] In summary, the method of using the photochlorination-based chlorotoluene chlorination reactor provided in this embodiment is as follows: During use, chlorotoluene material enters the reactor body 1 through the feed inlet 8, and chlorine gas enters the gas distributor 502 through the chlorine gas inlet pipe 501. The gas is evenly distributed into the reactor body 1 through the gas distributor 502. When the ultraviolet lamp 3 passes through the reflector strip 7, the ultraviolet light source evenly irradiates the reactor body 1, causing the chlorotoluene material to undergo a photochlorination reaction. At this time, the stirring motor 601 drives the transmission rod 602, stirring blades 603, and vortex ring frame 604 to rotate. The vortex ring frame 604 forms a vortex effect on the chlorotoluene material at the bottom of the reactor body 1, causing the chlorotoluene material to rotate in a vortex. The stirring blades 603 also generate a shearing force, ensuring that the chlorotoluene material is fully mixed and stirred, and fully participates in the photochlorination reaction. Furthermore, the stirring blades 603 are arc-shaped blades. During rotation, the arc-shaped stirring blades 603 can cause the chlorotoluene material to be mixed and stirred from the center to the periphery in the reactor body 1, further ensuring that the chlorotoluene material is in full contact with the ultraviolet light source and improving the efficiency of the photochlorination reaction.

[0038] 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 chloromethylbenzene chlorination reactor based on photochlorination, characterized in that, include: The vessel body (1) is provided with a lid (2); An ultraviolet lamp (3) is provided, and the ultraviolet lamp (3) is arranged in a ring array between the vessel body (1) and the quartz protective cover (4); A chlorine gas inlet distribution assembly (5) is disposed at the bottom of the vessel body (1); A vortex stirring assembly (6) is disposed inside the vessel body (1).

2. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 1, characterized in that: The inner wall of the vessel body (1) is provided with an annular groove (101), and a number of ultraviolet lamps (3) are arranged in a ring array in the annular groove (101). The quartz protective cover (4) is sealed on the annular groove (101) to seal and isolate the vessel body (1) and the ultraviolet lamps (3).

3. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 2, characterized in that: The upper end of the annular groove (101) penetrates the upper end of the vessel body (1).

4. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 3, characterized in that: A reflective strip (7) is provided between adjacent ultraviolet lamps (3) in the annular groove (101), and the reflective strip (7) is a reflective strip that is inclined on both sides.

5. The chlorotoluene chlorination reactor based on photochlorination according to claim 1, characterized in that: The chlorine gas inlet distribution assembly (5) includes a chlorine gas inlet pipe (501) and a gas distributor (502). The chlorine gas inlet pipe (501) is located at the bottom of the vessel body (1) and extends into the vessel body (1), and the gas distributor (502) is located at the upper end of the chlorine gas inlet pipe (501).

6. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 1, characterized in that: The vortex stirring assembly (6) includes a stirring motor (601), a transmission rod (602), stirring blades (603), and a vortex ring frame (604). The stirring motor (601) is located at the upper end of the vessel body (1). The transmission rod (602) is connected to the output end of the stirring motor (601) and extends into the bottom of the vessel body (1). The stirring blades (603) are provided in several groups. The stirring blades (603) are distributed at equal intervals on the transmission rod (602). The vortex ring frame (604) is located at the bottom of the transmission rod (602).

7. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 6, characterized in that: The stirring blade (603) is an arc-shaped blade.

8. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 1, characterized in that: The upper end of the vessel body (1) is provided with a feed inlet (8) and a reflux and gas phase inlet (9).

9. The chloromethylbenzene chlorination reactor based on photochlorination according to claim 1, characterized in that: The bottom of the vessel body (1) is provided with a discharge port (10).

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