Phosphorus oxychloride oxygen introduction reaction equipment

Abstract

The utility model discloses phosphorus oxychloride oxygen introduction reaction equipment which comprises a reaction kettle and supporting legs, a driving shaft is installed in the middle of the interior of the reaction kettle, and a limiting disc is installed at the top of the periphery of the driving shaft. According to the oxygen supply device, the oxygen supply pipes and the oxygen supply cavities are adopted, in the actual use process, oxygen can be conveyed into the reaction kettle through the oxygen supply pipes, the oxygen supply pipes are independently arranged in multiple groups, and the oxygen supply pipes used for guiding oxygen into the oxygen supply cavities at different positions are pipelines which are independently arranged and are different in length; in this way, the balance of oxygen conveying can be effectively guaranteed, the situation that due to single-pipe conveying, the oxygen amount at the bottom is lower than the oxygen amount at the top, the reaction effects of stock solutions at different depths are inconsistent, and the overall production efficiency is affected can be effectively avoided, and therefore the overall reaction efficiency and reaction quality can be effectively guaranteed; and the oxygen supply quantity is balanced, and the reaction effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus oxychloride oxygenation production, in particular to phosphorus oxychloride oxygenation reaction equipment. Background Art

[0002] As an important chemical product, phosphorus oxychloride is the main raw material for the production of halogen-free plastic flame retardants and plasticizers (such as triethyl phosphate), pesticides (such as chlordimeform), and herbicides (such as acetochlor and quizalofop-p-ethyl). At present, the production of phosphorus oxychloride at home and abroad mainly adopts the direct oxidation method of phosphorus trichloride, and the reaction equation is 2PC13+O2=2POC13. Oxygen is directly introduced into liquid phosphorus trichloride through a pipeline to oxidize and generate POC13. The process reaction conditions are mild and easy to control. It is currently the most widely used process route at home and abroad.

[0003] The publication number in the existing public technology is: CN216711604U. A production device of phosphorus oxychloride comprises a reactor, a driving motor is installed on the bottom surface of the reactor, a rotating column is fixedly connected to the output end of the driving motor, a rotating disk is installed on the output end of the rotating column, the rotating disk is rotatably connected to the bottom surface of the inner wall of the reactor, a ventilation pipe is fixedly connected to the rotating disk, a stirring plate is fixedly connected to the ventilation pipe, a protrusion is installed at one end of the stirring plate, a rotating shaft is installed at the end of the ventilation pipe away from the rotating disk, an oxygen generator is installed on the top surface of the reactor, a connecting pipe is fixedly connected to one end of the oxygen generator, and the end of the connecting pipe away from the oxygen generator is fixedly connected in the rotating shaft, an exhaust pipe is fixedly connected to the top surface of the reactor, a feed pipe is fixedly connected to the top surface of the reactor, a valve is provided on the feed pipe, a discharge pipe is fixedly connected to the bottom surface of the reactor, a solenoid valve is provided on the discharge pipe, and three bases are fixedly connected to the bottom surface of the reactor, which effectively improves the reaction efficiency of the equipment and makes the equipment more efficient when working.

[0004] However, the above patent still has certain disadvantages when used: although it can discharge oxygen through the holes on the surface of the protrusions and the stirring plate to achieve contact reaction with the liquid, the oxygen introduction pipeline is relatively single, and the oxygen introduction amount is within a certain range, which easily causes the oxygen to be discharged through the holes in sequence when flowing, so that the oxygen content that can flow to the bottom will be greatly reduced, resulting in a certain gap between the amount of oxygen discharged from the bottom of the kettle and the amount of oxygen discharged from the top, which in turn causes the reaction effect at the top to be greater than the reaction effect at the bottom, resulting in the overall reaction being uneven, resulting in extended reaction time and reduced reaction efficiency.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a phosphorus oxychloride oxygen-passing reaction device, which has the advantages of balanced oxygen supply, good reaction effect, and sufficient gas-liquid contact, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of balanced oxygen supply, good reaction effect and sufficient gas-liquid contact, the specific technical scheme adopted by the utility model is as follows:

[0010] A phosphorus oxychloride oxygenation reaction device comprises a reactor and support legs, wherein a driving shaft is installed at the middle position inside the reactor, a limiting disk is installed at the top position of the outer periphery of the driving shaft, the limiting disk is rotatably connected to the middle position of the top surface of the reactor, a plurality of groups of second sealing disks are rotatably connected to the inner position of the driving shaft, a supply cavity is provided between each of the second sealing disks, a connecting rod is fixedly installed at the top position of the second sealing disk, a fixed disk is fixedly installed at the top position of the connecting rod, the fixed disk is fixedly connected to the top of the reactor, a plurality of groups of oxygen supply pipes are evenly installed around the bottom surface of the fixed disk, the oxygen supply pipes respectively penetrate the second sealing disks at different positions and are connected to the supply cavity, and exhaust holes are provided at the bottom position of the oxygen supply pipes.

[0011] Furthermore, a plurality of stirring blades are evenly installed on the surface of the driving shaft, one end of the stirring blade passes through one side of the driving shaft and is connected to the supply chamber, a plurality of air outlet holes are evenly opened on the surface of the stirring blade, the other end of the stirring blade is symmetrically connected to auxiliary rollers at both sides inside the reactor, and a plurality of auxiliary blades are installed around the surface of the auxiliary roller.

[0012] Furthermore, the top position of the driving shaft is connected to the driving motor through a transmission structure, and the transmission structure is composed of a transmission wheel and a transmission belt, and the transmission wheel is respectively located at the top peripheral position of the driving shaft and the top position of the driving motor.

[0013] Furthermore, a feed port is fixedly installed at one side of the top of the reactor.

[0014] Furthermore, an oxygen generator is fixedly installed at the other side of the top of the reactor, and one end of the oxygen generator is connected to the oxygen supply pipe through a connecting pipe.

[0015] Furthermore, support legs are symmetrically installed on both sides of the bottom of the reactor.

[0016] Furthermore, a discharge port is fixedly installed at the middle position of the bottom of the reactor.

[0017] Furthermore, the oxygen supply tube and the outer periphery of the connecting rod located inside the driving shaft are rotatably connected to the driving shaft through a first sealing disk.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a phosphorus oxychloride oxygenation reaction device, which has the following beneficial effects:

[0020] (1) The utility model adopts an oxygen supply tube and a supply chamber. In actual use, oxygen can be transported into the reactor through the oxygen supply tube. Since multiple groups of oxygen supply tubes are independently provided, and the oxygen supply tubes used to introduce oxygen into the supply chambers at different positions are independently provided with pipes of different lengths, the balance of oxygen delivery can be effectively guaranteed. It can effectively avoid that the oxygen amount at the bottom is lower than the oxygen amount at the top due to single-tube delivery, thereby causing inconsistent reaction effects of stock solutions at different depths, affecting the overall production efficiency. Therefore, the overall reaction efficiency and reaction quality can be effectively guaranteed, which is convenient for better production use and has the advantages of balanced oxygen supply and good reaction effect.

[0021] (2) The utility model adopts stirring blades and auxiliary blades. In actual use, personnel can add the raw material solution required for producing phosphorus oxychloride into the device through the feed port, and then generate the required oxygen through the oxygen generator. Then, the stirring blades can be driven by the operation of the driving motor to rotate at a high speed, thereby driving the internal raw materials to flow. The liquid vortex generated when the raw liquid flows can also drive the auxiliary rollers on both sides to rotate, so that the auxiliary blades can also stir the raw liquid, so that the generated vortices can attract each other, and then the raw materials on the outside are transported to the inside position, ensuring that the subsequent oxygen can fully contact and react with the raw materials, which has the advantage of sufficient gas-liquid contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 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.

[0023] Figure 1 This is a schematic diagram of the structure of a phosphorus oxychloride oxygenation reaction device proposed by the utility model;

[0024] Figure 2 It is a schematic diagram of the connection between the second sealing disk and the connecting rod of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the drive shaft and the limit plate of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the fixed disk of the utility model.

[0027] In the figure:

[0028] 1. Reactor; 2. Feed inlet; 3. Transmission structure; 4. Fixed plate; 5. Oxygen supply pipe; 6. Connecting rod; 7. First sealing plate; 8. Connecting pipe; 9. Driving motor; 10. Oxygen generator; 11. Limiting plate; 12. Auxiliary roller; 13. Driving shaft; 14. Auxiliary blade; 15. Stirring blade; 16. Air outlet; 17. Second sealing plate; 18. Supply chamber; 19. Exhaust hole; 20. Support leg; 21. Discharge port. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the utility model, a phosphorus oxychloride oxygen-transmitting reaction device is provided.

[0031] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, a phosphorus oxychloride oxygenation reaction device according to an embodiment of the utility model comprises a reactor 1 and a support leg 20, a driving shaft 13 is installed at the middle position inside the reactor 1, a limiting disk 11 is installed at the top position of the outer periphery of the driving shaft 13, the limiting disk 11 is rotatably connected to the middle position of the top surface of the reactor 1, a plurality of groups of second sealing disks 17 are rotatably connected to the inner position of the driving shaft 13, a supply cavity 18 is opened between each of the second sealing disks 17, a connecting rod 6 is fixedly installed at the top position of the second sealing disk 17, a fixed disk 4 is fixedly installed at the top position of the connecting rod 6, the fixed disk 4 is fixedly connected to the top of the reactor 1, a plurality of groups of oxygen supply pipes 5 are evenly installed around the bottom surface of the fixed disk 4, the oxygen supply pipes 5 respectively pass through the second sealing disks 17 at different positions and are connected to the supply cavity 18, and an exhaust hole 19 is opened at the bottom position of the oxygen supply pipe 5.

[0032] In one embodiment, a plurality of groups of stirring blades 15 are evenly installed on the surface of the driving shaft 13, one end of the stirring blade 15 passes through one side of the driving shaft 13 and is connected to the supply chamber 18, a plurality of groups of air outlet holes 16 are evenly opened on the surface of the stirring blade 15, the other end of the stirring blade 15 is symmetrically connected to the auxiliary roller 12 at both sides of the reactor 1, and a plurality of groups of auxiliary blades 14 are installed around the surface of the auxiliary roller 12, and the air outlet holes 16 and the exhaust holes 19 are provided to ensure that the oxygen introduced into the interior can be smoothly discharged into the raw liquid for reaction.

[0033] In one embodiment, the top position of the drive shaft 13 is connected to the drive motor 9 through a transmission structure 3, and the transmission structure 3 is composed of a transmission wheel and a transmission belt, and the transmission wheels are respectively located at the top periphery of the drive shaft 13 and the top position of the drive motor 9. The drive shaft 13 as a whole can be rotated during operation, and its internal structure is fixed by a connecting rod 6, and is ensured by a first sealing disk 7 and a second sealing disk 17 to be not affected by the rotation of the drive shaft 13 during use.

[0034] In one embodiment, a feed port 2 is fixedly installed at one side of the top of the reactor 1. The provision of the feed port 2 facilitates the addition of the stock solution required for the operation.

[0035] In one embodiment, an oxygen generator 10 is fixedly installed at the other side of the top of the reactor 1. One end of the oxygen generator 10 is connected to the oxygen supply pipe 5 through a connecting pipe 8. The oxygen generator 10 is configured to provide oxygen required for the reaction.

[0036] In one embodiment, support legs 20 are symmetrically installed on both sides of the bottom of the reactor 1, and the entire device can be fixed by the support legs 20, so as to enhance the overall operating stability.

[0037] In one embodiment, a discharge port 21 is fixedly installed at the middle position of the bottom of the reactor 1. The discharge port 21 is provided to facilitate the discharge of the product after the reaction is completed.

[0038] In one embodiment, the oxygen supply tube 5 and the connecting rod 6 are rotatably connected to the driving shaft 13 at their outer circumferences located inside the driving shaft 13 via a first sealing disk 7. The first sealing disk 7 is provided to allow the top position of the driving shaft 13 to be in a sealed state, thereby preventing the oxygen introduced into the interior from flowing out, thereby ensuring that the oxygen can fully act on the raw liquid and ensuring the reaction effect.

[0039] Working principle: In actual use, personnel can add the raw material solution required for producing phosphorus oxychloride into the device through the feed port 2, and then the required oxygen can be generated through the oxygen generator 10, and then the operation of the driving motor 9 can drive the stirring blade 15 to rotate at a high speed, thereby driving the internal raw materials to flow, and the liquid vortex generated when the raw liquid flows can also drive the auxiliary rollers 12 on both sides to rotate, so that the auxiliary blades 14 can also stir the raw liquid, so that the generated vortices can attract each other, and then the raw materials on the outside are transported to the inside position, ensuring that the subsequent oxygen can fully contact and react with the raw materials, and because a plurality of groups of supply chambers 18 are provided inside the driving shaft 13, and the oxygen supply pipes 5 inside the supply chamber 18 are all independent structures, in this way, it can be ensured that the amount of oxygen in each supply chamber 18 is balanced, which can effectively avoid the single-tube transportation causing the oxygen amount at the bottom to be lower than the oxygen amount at the top, thereby causing the reaction effect of the raw liquid at different depths to be inconsistent, affecting the overall production efficiency. The device as a whole has the advantages of balanced oxygen supply, good reaction effect, and sufficient gas-liquid contact.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A phosphorus oxychloride oxygenation reaction device, comprising a reaction kettle (1) and a support leg (20), characterized in that: A driving shaft (13) is installed at a middle position inside the reactor (1), and a limiting disk (11) is installed at a top position of the outer periphery of the driving shaft (13). The limiting disk (11) is rotatably connected to a middle position of the top surface of the reactor (1). A plurality of groups of second sealing disks (17) are rotatably connected to the inside of the driving shaft (13). A supply cavity (18) is provided between two of the second sealing disks (17). A connecting rod (6) is fixedly installed at the top position of the second sealing disk (17). A fixed disk (4) is fixedly installed at the top position of the connecting rod (6). The fixed disk (4) is fixedly connected to the top of the reactor (1). A plurality of groups of oxygen supply pipes (5) are evenly installed around the bottom surface of the fixed disk (4). The oxygen supply pipes (5) respectively penetrate the second sealing disks (17) at different positions and are connected to the supply cavity (18). An exhaust hole (19) is provided at the bottom position of the oxygen supply pipes (5).

2. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: A plurality of stirring blades (15) are evenly mounted on the surface of the driving shaft (13); one end of the stirring blade (15) penetrates one side of the driving shaft (13) and is connected to the feeding chamber (18); a plurality of air outlet holes (16) are evenly opened on the surface of the stirring blade (15); the other end of the stirring blade (15) is symmetrically rotatably connected to auxiliary rollers (12) located on both sides of the interior of the reaction kettle (1); and a plurality of auxiliary blades (14) are mounted around the surface of the auxiliary rollers (12).

3. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: The top position of the drive shaft (13) is connected to the drive motor (9) via a transmission structure (3), and the transmission structure (3) is composed of a transmission wheel and a transmission belt, and the transmission wheel is respectively located at the top peripheral position of the drive shaft (13) and the top position of the drive motor (9).

4. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: A feed inlet (2) is fixedly installed at one side of the top of the reactor (1).

5. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: An oxygen generator (10) is fixedly installed at the other side of the top of the reactor (1), and one end of the oxygen generator (10) is connected to the oxygen supply pipe (5) through a connecting pipe (8).

6. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: Support legs (20) are symmetrically installed on both sides of the bottom of the reaction kettle (1).

7. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: A discharge port (21) is fixedly installed at the middle position of the bottom of the reaction kettle (1).

8. A phosphorus oxychloride oxygenation reaction equipment according to claim 1, characterized in that: The outer circumference of the oxygen supply pipe (5) and the connecting rod (6) located inside the driving shaft (13) is rotatably connected to the driving shaft (13) via a first sealing disk (7).

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