Nitrogen protection device for diphenyl phosphite

Abstract

The utility model relates to the technical field of diphenyl phosphite production, and provides a nitrogen protection device for diphenyl phosphite, which solves the problems of inconvenience in cleaning, difficulty in maintenance and poorer safety in related technologies, and comprises a reaction kettle body, a safety valve assembly, a discharge pipeline and a nitrogen pipeline, a motor is installed at the top of the kettle cover, the output end of the motor is connected with a rotating shaft which is coaxially arranged through a coupler, the peripheral surface of the rotating shaft is fixedly sleeved with two stirring blades which are distributed at equal intervals in an array mode and a first bevel gear, and a first valve is arranged on a discharging pipeline. When discharging is needed, the first valve and the second valve are opened, nitrogen enters the reaction kettle body through the nitrogen pipeline, diphenyl phosphite is pushed to the discharging pipeline, and in the process, the cylindrical cam rotates to drive the vibration column to continuously knock, so that the materials can smoothly flow out.

Description

Technical Field

[0001] The utility model relates to the technical field of diphenyl phosphite production, and specifically relates to a nitrogen protection device for diphenyl phosphite. Background Art

[0002] During the production and packaging process of diphenyl phosphite, due to its acidic nature, it is very easy to undergo hydrolysis reaction with water vapor in the air, resulting in a decrease in the physical and chemical indicators of the product. This problem is particularly prominent in a humid environment. At present, the filling method adopted by most manufacturers is to naturally fill the material into a barrel through the discharge valve at the bottom of the reactor after the production is completed. In this way, as the material liquid level drops, a large amount of air with water vapor will be inhaled, increasing the risk of hydrolysis of diphenyl phosphite, which not only affects the quality of the product, but may also lead to an increase in production costs and a decrease in customer satisfaction.

[0003] The authorization announcement number in the prior art is: CN216630807U, a nitrogen protection device for diphenyl phosphite, including a reactor tank body, and a reactor tank cover is arranged on the top of the reactor tank body; a protection mechanism, and the protection mechanism includes a nitrogen pipeline, a nitrogen pipeline is installed on one side of the reactor tank cover, a first valve is installed on the other end of the nitrogen pipeline, and a discharge pipeline is installed on the other side of the reactor tank cover. This patent fills nitrogen into the nitrogen pipeline and squeezes the raw materials inside with dry nitrogen, so that the internal diphenyl phosphite flows into the filling hose through the discharge pipeline and is filled into the packaging barrel, which effectively prevents the problem that as the liquid level of the material in the reactor drops, it is easy to absorb water vapor in the air to undergo a hydrolysis reaction, and the physical and chemical indicators are prone to unqualified, especially in humid weather.

[0004] The patented reactor tank is used for chemical reactions, and the materials are discharged through the discharge pipe. However, it is easy to get clogged after long-term use, and it is inconvenient to maintain and clean. There are problems of inconvenient cleaning and difficult maintenance. Secondly, when the chemical reaction is taking place inside the patented reactor body, pressure fluctuations or abnormally high pressure may occur. If there is no safety valve, the excessive pressure may cause the reactor body to rupture or explode, posing a serious safety hazard to the production site and staff, and there is a problem of poor safety. Utility Model Content

[0005] The utility model provides a nitrogen protection device for diphenyl phosphite, which solves the problems of inconvenient cleaning, difficult maintenance and poor safety.

[0006] The technical solution of the utility model is as follows:

[0007] A nitrogen protection device for diphenyl phosphite, comprising a reactor body, a safety valve assembly, a discharge pipeline and a nitrogen pipeline, wherein a reactor cover is arranged on the top of the reactor body, a motor is installed on the top of the reactor cover, an output end of the motor is connected to a coaxially arranged rotating shaft through a coupling, two arrays of equidistantly distributed stirring blades and a first bevel gear are fixedly sleeved on the outer circumference of the rotating shaft, a first valve is arranged on the discharge pipeline, and a second valve is arranged on the nitrogen pipeline;

[0008] The bottom of the kettle cover is fixedly connected to a fixing seat, a slave shaft is rotatably installed inside the fixing seat, a cylindrical cam and a second bevel gear are fixedly sleeved on the outer circumferential surface of the slave shaft, the first bevel gear is meshingly connected with the second bevel gear, a vibration column is slidably assembled inside the fixing seat, a slider is fixedly nested inside the vibration column, and one end of the slider is slidably assembled inside the cylindrical cam.

[0009] Preferably, the safety valve assembly is installed on the kettle cover, and includes a valve seat, a valve body, a piston and a spring. The valve seat is threadedly connected to the kettle cover, the valve body and the piston are slidably assembled inside the valve seat, the spring is connected between the piston and the valve body, and a channel is opened at the bottom of the valve seat.

[0010] Preferably, a cavity is provided inside the reactor body, and the stirring blade is rotatably installed inside the cavity to facilitate the rotation of the stirring blade.

[0011] Preferably, a straight hole is opened inside the first bevel gear, and the rotating shaft is fixedly nested inside the straight hole to facilitate the rotation of the first bevel gear.

[0012] Preferably, a through hole is provided on the fixing seat, and the vibration column is slidably connected inside the through hole to facilitate the vibration column to knock on the discharge pipe.

[0013] Preferably, a circular hole is opened inside the cylindrical cam, and the slave shaft is fixedly nested inside the circular hole to facilitate the rotation of the cylindrical cam.

[0014] Preferably, an annular groove is provided on the cylindrical cam, and the slider is slidably connected inside the annular groove to facilitate sliding of the slider.

[0015] Preferably, a circular groove is provided inside the valve seat, and the valve body is slidably connected inside the circular groove to facilitate sliding of the valve body.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, by setting structures such as a cylindrical cam and a vibrating column, when discharging is required, the first valve and the second valve are opened. At this time, nitrogen enters the reactor body through the nitrogen pipeline, pushing diphenyl phosphite to the discharging pipeline. In this process, the rotation of the cylindrical cam drives the continuous knocking action of the vibrating column to help the material flow out smoothly.

[0018] 2. In the utility model, a safety valve assembly and a valve body are provided to ensure the safety of the reactor body. When the pressure in the reactor body exceeds a preset value, the piston is subjected to upward pressure, compressing the spring and moving upward. When the piston moves to a certain position, the channel at the bottom of the valve seat opens, thereby releasing the excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the reactor body of the utility model;

[0023] Figure 4 for Figure 3 A magnified image of point A;

[0024] Figure 5 It is a side sectional view of the safety valve assembly of the utility model.

[0025] In the figure: 1. reactor body; 2. reactor cover; 3. motor; 4. rotating shaft; 5. stirring blade; 6. safety valve assembly; 601. valve body; 602. spring; 603. piston; 604. valve seat; 605. channel; 7. discharge pipe; 8. first valve; 9. nitrogen pipe; 10. second valve; 11. vibration column; 12. first bevel gear; 13. second bevel gear; 14. fixed seat; 15. tubular cam; 16. slider; 17. ring groove; 18. slave shaft. DETAILED DESCRIPTION

[0026] The following will be combined with 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 of 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.

[0027] Example 1

[0028] like Figure 1 to Figure 5 As shown, this embodiment proposes a nitrogen protection device for diphenyl phosphite, including a reactor body 1, a safety valve assembly 6, a discharge pipe 7 and a nitrogen pipe 9. A reactor cover 2 is provided on the top of the reactor body 1, and a motor 3 is installed on the top of the reactor cover 2. The output end of the motor 3 is connected to a coaxially arranged rotating shaft 4 through a coupling. Two arrays of equidistantly distributed stirring blades 5 and a first bevel gear 12 are fixedly sleeved on the outer circumference of the rotating shaft 4, respectively. A first valve 8 is provided on the discharge pipe 7, and a second valve 10 is provided on the nitrogen pipe 9. A fixed seat 14 is fixedly connected to the bottom of the reactor cover 2, and a slave shaft 18 is rotatably installed inside the fixed seat 14. On the outer circumference of the slave shaft 18, a second valve 10 is provided. A cylindrical cam 15 and a second bevel gear 13 are respectively fixedly sleeved, the first bevel gear 12 is meshedly connected with the second bevel gear 13, a vibration column 11 is slidably assembled inside the fixed seat 14, a slider 16 is fixedly nested inside the vibration column 11, one end of the slider 16 is slidably assembled inside the cylindrical cam 15, through the arrangement of the cylindrical cam 15 and the vibration column 11 and other structures, when discharging is required, the first valve 8 and the second valve 10 are opened, at this time, nitrogen enters the reactor body 1 through the nitrogen pipeline 9, and pushes diphenyl phosphite to the discharge pipeline 7, and in this process, the continuous knocking action of the vibration column 11 driven by the rotation of the cylindrical cam 15 helps the material to flow out smoothly.

[0029] like Figure 1 to Figure 5 As shown, a cavity is provided inside the reactor body 1, and a stirring blade 5 is rotatably installed inside the cavity.

[0030] like Figure 1 to Figure 5 As shown, a straight hole is opened inside the first bevel gear 12, and the rotating shaft 4 is fixedly nested inside the straight hole.

[0031] like Figure 1 to Figure 5 As shown, a through hole is formed on the fixing seat 14, and the vibration column 11 is slidably connected inside the through hole.

[0032] like Figure 1 to Figure 5 As shown, a circular hole is opened inside the cylindrical cam 15, and the slave shaft 18 is fixedly nested inside the circular hole.

[0033] like Figure 1 to Figure 5 As shown, a ring groove 17 is formed on the cylindrical cam 15 , and a slider 16 is slidably connected inside the ring groove 17 .

[0034] In this embodiment, the reactor body 1 is used as a chemical reaction container. The stirring blades 5 on the rotating shaft 4 are driven to rotate by the motor 3 to achieve efficient stirring of the materials inside the reactor body 1, ensuring that the materials are fully mixed and reacted evenly. This stirring method improves the reaction speed and efficiency. By setting the nitrogen pipeline 9, dry nitrogen can be filled into the reactor body 1 after the reaction is completed, and diphenyl phosphite can be squeezed into the discharge pipeline 7 for filling, thereby preventing the material from absorbing water vapor in the air and undergoing a hydrolysis reaction. This nitrogen protection method ensures product quality and stability. The first bevel gear 12 drives the second bevel gear 13 to rotate, thereby driving the cylindrical cam 15 to rotate, causing the slider 16 to slide in the annular groove 17, and driving the vibration column 11 to slide. The knocking action generated by the up and down movement of the vibration column 11 helps the material to flow smoothly in the discharge pipeline 7 to avoid blockage and retention. This vibration discharge method improves the smoothness and efficiency of the discharge.

[0035] Example 2

[0036] like Figure 1 to Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the safety valve assembly 6 is installed on the kettle cover 2, including a valve seat 604, a valve body 601, a piston 603 and a spring 602. The valve seat 604 is threadedly connected to the kettle cover 2, the valve body 601 and the piston 603 are slidably assembled inside the valve seat 604, the spring 602 is connected between the piston 603 and the valve body 601, and a channel 605 is opened at the bottom of the valve seat 604. Through the arrangement of the safety valve assembly 6 and the valve body 601, in order to ensure the safety of the reactor body 1, the safety valve assembly 6 is arranged. When the pressure in the reactor body 1 exceeds the preset value, the piston 603 will be subjected to upward pressure, compressing the spring 602 and moving upward. When the piston 603 moves to a certain position, the channel 605 at the bottom of the valve seat 604 is opened, thereby releasing the excessive pressure.

[0037] like Figure 1 to Figure 4 As shown, a circular groove is provided inside the valve seat 604, and the valve body 601 is slidably connected inside the circular groove.

[0038] In this embodiment, by setting the safety valve assembly 6, when the pressure in the reactor body 1 exceeds the preset value, the safety valve assembly 6 will automatically open to release the excessive pressure, thereby protecting the reactor body 1 from damage. Once the pressure returns to normal, the elastic force of the spring 602 will reset the piston and close the channel 605, thereby maintaining the sealed state of the reactor body 1 again. The setting of this safety valve assembly 6 improves the safety and reliability of the equipment.

[0039] The above are only preferred embodiments of the present invention and are 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 nitrogen protection device for diphenyl phosphite, comprising a reaction vessel body (1), a safety valve assembly (6), a discharge pipe (7) and a nitrogen pipe (9), It is characterized in that The top of the reactor body (1) is provided with a reactor cover (2), the top of the reactor cover (2) is provided with a motor (3), the output end of the motor (3) is connected to a coaxially arranged rotating shaft (4) through a coupling, the outer peripheral surface of the rotating shaft (4) is respectively fixedly sleeved with two arrays of equidistantly distributed stirring blades (5) and a first bevel gear (12), the discharge pipe (7) is provided with a first valve (8), and the nitrogen pipe (9) is provided with a second valve (10); The bottom of the kettle cover (2) is fixedly connected to a fixing seat (14), a slave shaft (18) is rotatably mounted inside the fixing seat (14), a cylindrical cam (15) and a second bevel gear (13) are fixedly sleeved on the outer circumferential surface of the slave shaft (18), the first bevel gear (12) is meshingly connected with the second bevel gear (13), a vibration column (11) is slidably mounted inside the fixing seat (14), a slider (16) is fixedly nested inside the vibration column (11), and one end of the slider (16) is slidably mounted inside the cylindrical cam (15).

2. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that The safety valve assembly (6) is installed on the kettle cover (2), and comprises a valve seat (604), a valve body (601), a piston (603) and a spring (602); the valve seat (604) is threadedly connected to the kettle cover (2); the valve body (601) and the piston (603) are slidably assembled inside the valve seat (604); the spring (602) is connected between the piston (603) and the valve body (601); and a channel (605) is opened at the bottom of the valve seat (604).

3. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that The reaction kettle body (1) has a cavity inside, and the stirring blade (5) is rotatably installed inside the cavity.

4. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that A straight hole is provided inside the first bevel gear (12), and the rotating shaft (4) is fixedly nested inside the straight hole.

5. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that The fixing seat (14) is provided with a through hole, and the vibration column (11) is slidably connected inside the through hole.

6. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that A circular hole is provided inside the cylindrical cam (15), and the slave shaft (18) is fixedly nested inside the circular hole.

7. A nitrogen protection device for diphenyl phosphite according to claim 1, It is characterized in that The cylindrical cam (15) is provided with an annular groove (17), and the sliding block (16) is slidably connected inside the annular groove (17).

8. A nitrogen protection device for diphenyl phosphite according to claim 2, It is characterized in that A circular groove is provided inside the valve seat (604), and the valve body (601) is slidably connected inside the circular groove.

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