Chlorination reaction device for 3, 4, 5-trichlorobenzotrifluoride

Abstract

The utility model provides a 3, 4, 5-trichlorobenzotrifluoride chlorination reaction device, which belongs to the field of 3, 4, 5-trichlorobenzotrifluoride and comprises a reaction kettle, an upper cover is mounted at the upper end of the reaction kettle, and a heating jacket is mounted outside the reaction kettle; a reaction structure; the reaction structure comprises a rotating pipe which penetrates through the upper cover and is rotationally mounted with the upper cover, an inlet pipe which penetrates through the upper cover is mounted at the inlet end of the pump body, a first valve is mounted on the inlet pipe, an inlet branch pipe is mounted on the inlet pipe, and a second valve is mounted on the inlet branch pipe. According to the utility model, chlorine gas can be circularly conveyed into raw materials, so that the chlorine gas is fully mixed and reacted with the raw materials, the reaction efficiency of the chlorine gas and the raw materials is improved, the quality of 3, 4, 5-trichlorobenzotrifluoride chlorination reaction is ensured, and the inside of the reaction kettle can be washed by connecting the conveying pipe with an external water pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3, 4, 5 -trichloro trifluorotoluene technical field especially relates to a kind of 3, 4, 5 -trichloro trifluorotoluene chlorination reaction device. BACKGROUND

[0002] At present, most of the production of 3, 4, 5 -trichloro trifluorotoluene uses chloro denitration method or rectification separation, which needs to put raw materials into the inside of the reaction kettle, then heated to about 200 degrees Celsius, and then chlorine gas is introduced for chlorination reaction.

[0003] The existing 3, 4, 5 -trichloro trifluorotoluene in chlorination reaction, such as the publication number CN214916059U, a kind of 3, 4, 5 -trichloro trifluorotoluene chlorination reaction device, chlorine gas can be delivered to the aeration pipe by the pump body, and then sprayed out through the aeration head, which can quickly react with the raw materials, and then the stirring rod is driven by the driving motor to stir, to further accelerate the reaction of chlorine gas and raw materials;But chlorine gas is in the form of bubbles after being sprayed out through the aeration head, and finally leaves the reaction liquid, which still causes part of the chlorine gas to be located above, so that it cannot be effectively mixed and reacted with the reaction liquid, thereby reducing the reaction efficiency;Therefore, the present application provides a kind of 3, 4, 5 -trichloro trifluorotoluene chlorination reaction device. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model provides a kind of 3, 4, 5 -trichloro trifluorotoluene chlorination reaction device.

[0005] The embodiment of the utility model provides a kind of 3, 4, 5 -trichloro trifluorotoluene chlorination reaction device, comprising:

[0006] Reaction kettle, the upper end of the reaction kettle is equipped with upper cover, and the outside of the reaction kettle is equipped with heating jacket;

[0007] Reaction structure;The reaction structure includes rotating pipe that is rotatably installed through the upper cover, a plurality of stirring pipes are installed on the rotating pipe and are connected, the end of the stirring pipe is equipped with hose, the rotating pipe is equipped with swivel joint, the upper cover is equipped with pump body, the output end of the pump body is equipped with delivery pipe, the delivery pipe is connected with swivel joint, the inlet end of the pump body is equipped with inlet pipe that is arranged through the upper cover, the inlet pipe is equipped with first valve, the inlet pipe is equipped with inlet branch pipe, and the inlet branch pipe is equipped with second valve.

[0008] Further, the bottom of the reaction kettle is equipped with three supporting legs, and the bottom of the three supporting legs is fixed with leather pad.

[0009] Further, the bottom of the reaction kettle is equipped with L-shaped liquid discharge pipe, and the L-shaped liquid discharge pipe is equipped with valve.

[0010] Furthermore, the upper cover is equipped with a drive mechanism for driving the rotating tube to rotate. The drive mechanism includes a motor mounted on the upper cover. Gears are mounted on the output end of the motor and on the rotating tube, and the two gears mesh with each other.

[0011] Furthermore, an integral sleeve is fixed on the upper cover, and the rotating tube passes through the sleeve and is rotatably configured with it.

[0012] Furthermore, an addition tube is installed on the upper cover, and the addition tube is sealed by a spiral sealing plug.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention can circulate chlorine gas to the raw materials, allowing them to mix and react fully, thus improving the efficiency of the reaction between chlorine gas and raw materials and ensuring the quality of the chlorination reaction of 3,4,5-trichlorotrifluorotoluene. The delivery pipe can be connected to an external water pump to rinse the inside of the reaction vessel. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the structure of a chlorination reaction apparatus for 3,4,5-trichlorotrifluorotoluene as described in an embodiment of this utility model.

[0016] Fig. 2 This is a schematic diagram of the motor and pump body in a chlorination reaction apparatus for 3,4,5-trichlorotrifluorotoluene as described in this embodiment of the present invention.

[0017] Fig. 3 This is a schematic diagram of the rotating tube in a chlorination reactor for 3,4,5-trichlorotrifluorotoluene as described in an embodiment of this utility model.

[0018] In the above attached figures: 1. Reactor, 2. Heating jacket, 3. Support leg, 4. L-shaped drain pipe, 5. Addition pipe, 6. Rotary pipe, 7. Motor, 8. Gear, 9. Rotary joint, 10. Delivery pipe, 11. Pump body, 12. Inlet pipe, 13. First valve, 14. Inlet branch pipe, 15. Second valve, 16. Stirring pipe, 17. Hose. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figs. 1-3 As shown in the figure, this utility model embodiment proposes a chlorination reaction apparatus for 3,4,5-trichlorotrifluorotoluene, comprising:

[0021] The reaction kettle 1 is provided with an upper cover at the upper end, the upper cover is bolted on the reaction kettle 1, a heating jacket 2 is arranged outside the reaction kettle 1, and the reaction kettle 1 can be heated through the heating jacket 2. In order to support the reaction kettle 1, three supporting legs 3 are arranged at the bottom of the reaction kettle 1, and the bottoms of the three supporting legs 3 are fixed with leather pads.

[0022] In addition, an L-shaped liquid discharge pipe 4 is arranged at the bottom of the reaction kettle 1, a valve is arranged on the L-shaped liquid discharge pipe 4, and the 3,4,5-trichlorobenzotrifluoride after the reaction can be discharged through the L-shaped liquid discharge pipe 4 by opening the valve. An adding pipe 5 is arranged on the upper cover, the adding pipe 5 is sealed by a screw seal plug, and the reaction liquid can be added into the reaction kettle 1 through the adding pipe 5 by removing the screw seal plug.

[0023] The reaction structure comprises a rotating pipe 6 penetrating through the upper cover and being rotatably arranged thereon, a driving mechanism for driving the rotating pipe 6 to rotate is arranged on the upper cover, the driving mechanism comprises a motor 7 arranged on the upper cover, gears 8 are arranged on the output end of the motor 7 and the rotating pipe 6, the two gears 8 are engaged, the motor 7 drives the gears 8 to rotate, and the two rotating pipes 6 are driven to rotate under the transmission of the two gears 8. An integrated sleeve is fixed on the upper cover, the rotating pipe 6 penetrates through the sleeve and is rotatably arranged thereon, so that the rotating pipe 6 can be supported and stably rotated.

[0024] A plurality of stirring pipes 16 are arranged on the rotating pipe 6 and are connected, soft pipes 17 are arranged at the ends of the stirring pipes 16, a rotary joint 9 is arranged on the rotating pipe 6, a pump body 11 is arranged on the upper cover, a conveying pipe 10 is arranged at the output end of the pump body 11, the conveying pipe 10 is connected with the pump body 11 through a threaded joint, which is not shown in the figure and is a prior art, the conveying pipe 10 is connected with the rotary joint 9, an inlet pipe 12 penetrating through the upper cover is arranged at the inlet end of the pump body 11, a first valve 13 is arranged on the inlet pipe 12, an inlet branch pipe 14 is arranged on the inlet pipe 12, and a second valve 15 is arranged on the inlet branch pipe 14.

[0025] In use, the inlet branch pipe 14 is connected with a chlorine pipeline, the first valve 13 is closed, the second valve 15 is opened, the reaction kettle 1 is heated through the heating jacket 2, when the temperature of the raw material reaches about 200 degrees Celsius (which can be detected by arranging a temperature sensor on the reaction kettle 1), the pump body 11 works, and the pump body 11 works to convey the required amount of chlorine into the rotating pipe 6 through the inlet branch pipe 14, the inlet pipe 12, the conveying pipe 10 and the rotary joint 9, and then the chlorine is discharged through the stirring pipes 16 and the soft pipes 17;

[0026] Meanwhile, the motor 7 drives the rotating tube 6 to rotate, and then the stirring tube 16 and the hose 17 rotate, so that the chlorine gas can be introduced into the reaction material and transported in a spiral manner and stirred with the chlorine gas and the raw material, effectively mixing and reacting the chlorine gas and the raw material. Due to the arrangement of the hose 17 and the spraying of the chlorine gas, the hose 17 will not be stable due to the resistance, and the end portion will swing in the raw material, further changing the direction of the chlorine gas sprayed; the chlorine gas in the form of bubbles will also cause the raw material to surge, thereby further improving the mixing effect.

[0027] After the chlorine gas is transported, the second valve 15 is closed and the first valve 13 is opened, and the chlorine gas is present on the upper side. The pump body 11 works, so that the chlorine gas on the upper side can be pumped away and transported through the delivery pipe 10, and finally discharged through the hose 17. In this way, the chlorine gas that has not reacted can be transported to the raw material, thereby improving the efficiency of the reaction of the chlorine gas and the raw material, and ensuring the quality of the 3,4,5-trichlorobenzotrifluoride chlorination reaction.

[0028] The delivery pipe 10 and the pump body 11 are separated, the delivery pipe 10 is connected with an external water pump, the water pump transports clean water into the delivery pipe 10, and at the same time, the motor 7 works to make the clean water sprayed through the hose 17. In this way, the inner wall of the reaction kettle 1 can be washed and cleaned.

[0029] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions should be covered in the scope of the claims of the present application.

Claims

1. A 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus characterized by comprising: Include: The reaction kettle (1), the upper end of the reaction kettle (1) is provided with an upper cover, and the outer part of the reaction kettle (1) is provided with a heating jacket (2); The reaction structure; the reaction structure includes a rotating pipe (6) penetrating through the upper cover and being rotatably installed with the upper cover, a plurality of stirring pipes (16) are installed on the rotating pipe (6) and are connected in communication, a hose (17) is installed at the end of the stirring pipe (16), a rotary joint (9) is installed on the rotating pipe (6), a pump body (11) is installed on the upper cover, a delivery pipe (10) is installed at the output end of the pump body (11), the delivery pipe (10) is connected with the rotary joint (9), an inlet pipe (12) penetrating through the upper cover is installed at the inlet end of the pump body (11), a first valve (13) is installed on the inlet pipe (12), an inlet branch pipe (14) is installed on the inlet pipe (12), and a second valve (15) is installed on the inlet branch pipe (14).

2. The 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus according to claim 1, characterized by, Wherein: The bottom of the reaction kettle (1) is provided with three supporting legs (3), and the bottom of the three supporting legs (3) is fixed with a leather pad.

3. The 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus according to claim 1, characterized by, Wherein: The bottom of the reaction kettle (1) is provided with an L-shaped liquid discharge pipe (4), and the L-shaped liquid discharge pipe (4) is provided with a valve.

4. The 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus according to claim 1, characterized by Wherein: The upper cover is provided with a driving mechanism for driving the rotation of the rotating pipe (6), the driving mechanism includes a motor (7) installed on the upper cover, a gear (8) is installed on the output end of the motor (7) and the rotating pipe (6), and the two gears (8) are engaged.

5. The 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus according to claim 1, characterized by Wherein: The upper cover is fixed with an integral sleeve, and the rotating pipe (6) penetrates through the sleeve and is rotatably arranged with the sleeve.

6. The 3,4,5-trichlorobenzotrifluoride chlorination reaction apparatus according to claim 1, characterized by Wherein: The upper cover is provided with an adding pipe (5), and the adding pipe (5) is sealed by a screw seal plug.

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