Drying equipment for phosphorus oxychloride production

Abstract

The utility model discloses drying equipment for phosphorus oxychloride production. The drying equipment comprises a reactor and a feed port formed in the upper end of the reactor, one side of the upper end of the reactor is fixedly connected with a mounting seat, the upper end of the mounting seat is fixedly connected with a drying box, the upper end of the drying box is fixedly connected with a drying cylinder, and the upper end of the drying cylinder is fixedly connected with an air inlet pipe; a first through disc is arranged in the drying box, the first through disc is fixedly connected to the top wall of the drying box and communicates with the interior of the drying cylinder, a plurality of flow dividing pipes are fixedly connected to the bottom end of the first through disc, and the bottom ends of the flow dividing pipes penetrate through the drying box and the mounting base; the bottom end of the mounting seat is provided with a second through disc, the second through disc is fixedly connected with the bottom ends of a plurality of shunt pipes, and one side of the second through disc is communicated with the interior of the reactor through a through pipe. And the temperature entering the reactor is ensured, so that the production process of phosphorus oxychloride is ensured.

Description

Technical Field

[0001] The utility model relates to drying equipment used for the production of phosphorus oxychloride, belonging to the technical field of phosphorus oxychloride production. Background Art

[0002] Phosphorus oxychloride is a colorless liquid with strong irritation and corrosiveness. It can be used as a chlorinating agent and catalyst for organic synthesis in the chemical industry. It has a wide range of uses and is one of the main raw materials for acid ester organic products. It emits smoke violently in humid air and is hydrolyzed into phosphoric acid and hydrogen chloride. It is mainly used as an intermediate for pesticides, pharmaceuticals, and dyes. It is also widely used in industries such as semiconductor doping sources and optical fiber materials. The production processes of phosphorus oxychloride include hydrolysis, oxidation, and co-production of thionyl chloride.

[0003] In the actual production process, it is usually necessary to add oxygen or chlorine to the reactor. Once water vapor is mixed in the oxygen or chlorine, the water vapor will enter the reactor together, causing the phosphorus oxychloride in the production process to come into contact with moisture, which will cause smoke and hydrolysis, easily causing poisoning. At the same time, a certain temperature is required when producing phosphorus oxychloride in the reactor. Adding oxygen or chlorine during the reaction will affect the production of phosphorus oxychloride because the oxygen or chlorine is initially at room temperature. Utility Model Content

[0004] The purpose of the utility model is to provide a drying device for the production of phosphorus oxychloride to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying device for the production of phosphorus oxychloride, comprising a reactor and a feed port opened at the upper end of the reactor, a mounting seat being fixedly connected to one side of the upper end of the reactor, a drying box being fixedly connected to the upper end of the mounting seat, a drying cylinder being fixedly connected to the upper end of the drying box, and an air inlet pipe being fixedly connected to the upper end of the drying cylinder; a first through-plate is provided inside the drying box, the first through-plate is fixedly connected to the top wall of the drying box, the first through-plate is communicated with the inside of the drying cylinder, a plurality of shunt pipes are fixedly connected to the bottom end of the first through-plate, and the bottom ends of the plurality of shunt pipes all pass through the drying box and the mounting seat; a second through-plate is provided at the bottom end of the mounting seat, the second through-plate is fixedly connected to the bottom ends of the plurality of shunt pipes, one side of the second through-plate is communicated with the inside of the reactor through a through pipe, and a heater is fixedly connected to the inner wall of the drying box.

[0006] Preferably, the upper end of the second disk is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating rod, the upper end of the rotating rod is inserted in the drying box, and a plurality of fan plates are evenly fixed on the outer side of the upper end of the rotating rod.

[0007] Preferably, thermal insulation cotton is fixedly connected to the outside of the drying box.

[0008] Preferably, the interior of the drying cylinder is filled with dry filler.

[0009] Preferably, through holes are provided on both sides of the upper end of the drying box, and sealing plugs are provided in the two through holes.

[0010] Compared with the prior art, the utility model has the beneficial effects of not only being able to dry and dehumidify the gas to prevent phosphorus oxychloride from contacting moisture to generate smoke, but also being able to preheat the gas to ensure the temperature entering the reactor, thereby ensuring the production process of phosphorus oxychloride. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a partial structural schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the internal structure of the drying box of the present utility model.

[0014] In the figure: 1. Reactor; 2. Feed inlet; 3. Mounting seat; 4. Insulation cotton; 5. Through pipe; 6. Second through plate; 7. Drying box; 8. Sealing plug; 9. Drying cylinder; 10. Inlet pipe; 11. Motor; 12. Diverter pipe; 13. Fan plate; 14. Heater; 15. First through plate; 16. Through hole; 17. Rotating rod. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-3The utility model provides a technical solution: a drying device for the production of phosphorus oxychloride, comprising a reactor 1 and a feed port 2 opened at the upper end of the reactor 1, a mounting seat 3 is fixedly connected to one side of the upper end of the reactor 1, a drying box 7 is fixedly connected to the upper end of the mounting seat 3, a drying cylinder 9 is fixedly connected to the upper end of the drying box 7, and an air inlet pipe 10 is fixedly connected to the upper end of the drying cylinder 9; a first through-plate 15 is arranged inside the drying box 7, the first through-plate 15 is fixedly connected to the top wall of the drying box 7, the first through-plate 15 is communicated with the inside of the drying cylinder 9, and the bottom end of the first through-plate 15 A plurality of shunt pipes 12 are fixedly connected, and the bottom ends of the plurality of shunt pipes 12 all penetrate the drying box 7 and the mounting seat 3; a second through-plate 6 is provided at the bottom end of the mounting seat 3, and the second through-plate 6 is fixedly connected to the bottom ends of the plurality of shunt pipes 12, and one side of the second through-plate 6 is connected to the inside of the reactor 1 through the through-tube 5; a heater 14 is fixedly connected to the inner wall of the drying box 7, which can not only dry and dehumidify the gas to prevent phosphorus oxychloride from contacting with moisture to generate smoke, but also preheat the gas to ensure the temperature entering the reactor 1, thereby ensuring the production process of phosphorus oxychloride.

[0017] A motor 11 is fixedly connected to the upper end of the second disk 6, and a rotating rod 17 is fixedly connected to the output end of the motor 11. The upper end of the rotating rod 17 is inserted in the drying box 7, and a number of fan plates 13 are evenly fixed on the outer side of the upper end of the rotating rod 17. The motor 11 drives the fan plates 13 to rotate through the rotating rod 17, so that the hot air in the drying box 7 is evenly in contact with the plurality of shunt pipes 12 to ensure the heating and drying effect; a heat preservation cotton 4 is fixedly connected to the outer side of the drying box 7 to prevent the heat in the heating box from leaking out, and play a certain heat preservation role, thereby ensuring the heating and drying effect; the drying cylinder 9 is filled with dry fillers, and the gas is preliminarily dried and dehumidified by the dry fillers in the drying cylinder 9; through holes 16 are provided on both sides of the upper end of the drying box 7, and sealing plugs 8 are provided in the two through holes 16. Opening the sealing plugs 8 facilitates ventilation between the inside and outside of the drying box 7.

[0018] Specifically, the electrical appliances in the present application are all powered by an external power supply. When the utility model is used, the gas enters the drying cylinder 9 through the air inlet pipe 10, and the gas is preliminarily dried and dehumidified by the dry filler in the drying cylinder 9. Then the gas enters the first pan 15, and the gas in the first pan 15 enters the second pan 6 through a plurality of branch pipes 12. During this process, the heater 14 heats the drying box 7, thereby heating and drying the plurality of branch pipes 12 and the gas therein. Since the gas is branched in the plurality of branch pipes 12, the heating and drying effect of the gas is better. At the same time, the motor 11 drives the plurality of fan plates 13 to rotate through the rotating rod 17, so that the hot air in the drying box 7 is evenly in contact with the plurality of branch pipes 12 to ensure the heating and drying effect. The dried gas enters the reactor 1 through the through pipe 5, which can not only dry and dehumidify the gas to prevent phosphorus oxychloride from contacting with moisture to produce smoke, but also preheat the gas to ensure the temperature entering the reactor 1, thereby ensuring the production process of phosphorus oxychloride.

[0019] 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 drying device for producing phosphorus oxychloride, comprising a reactor (1) and a feed port (2) provided at the upper end of the reactor (1), characterized in that: A mounting seat (3) is fixedly connected to one side of the upper end of the reactor (1), a drying box (7) is fixedly connected to the upper end of the mounting seat (3), a drying cylinder (9) is fixedly connected to the upper end of the drying box (7), and an air inlet pipe (10) is fixedly connected to the upper end of the drying cylinder (9); a first through-plate (15) is provided inside the drying box (7), the first through-plate (15) is fixedly connected to the top wall of the drying box (7), the first through-plate (15) is communicated with the interior of the drying cylinder (9), a plurality of shunt pipes (12) are fixedly connected to the bottom end of the first through-plate (15), and the bottom ends of the plurality of shunt pipes (12) all pass through the drying box (7) and the mounting seat (3); a second through-plate (6) is provided at the bottom end of the mounting seat (3), the second through-plate (6) is fixedly connected to the bottom ends of the plurality of shunt pipes (12), one side of the second through-plate (6) is communicated with the interior of the reactor (1) through a through pipe (5), and a heater (14) is fixedly connected to the inner wall of the drying box (7).

2. A drying device for the production of phosphorus oxychloride according to claim 1, characterized in that: The upper end of the second disk (6) is fixedly connected to a motor (11), the output end of the motor (11) is fixedly connected to a rotating rod (17), the upper end of the rotating rod (17) is inserted into the drying box (7), and a plurality of fan plates (13) are evenly fixed on the outer side of the upper end of the rotating rod (17).

3. A drying device for the production of phosphorus oxychloride according to claim 1, characterized in that: The outside of the drying box (7) is fixedly connected with a heat-insulating cotton (4).

4. A drying device for the production of phosphorus oxychloride according to claim 1, characterized in that: The interior of the drying cylinder (9) is filled with dry filler.

5. A drying device for the production of phosphorus oxychloride according to claim 1, characterized in that: Through holes (16) are provided on both sides of the upper end of the drying box (7), and sealing plugs (8) are provided in the two through holes (16).

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