Measuring and absorbing kettle for phosphorus trichloride

Abstract

According to the phosphorus trichloride metering absorption kettle, an air cylinder is additionally arranged on the side wall of a tank body, when a cover is opened and closed, a PLC is used for controlling the air cylinder to work, the tank cover is jacked up or lowered from one end, and the other end is made to rotate along a rotating shaft, so that the tank cover is opened and closed, mechanical operation of the tank cover is achieved, manual operation is replaced, and the production efficiency is improved. The probability of dangerous situations that hands of workers are damaged due to misoperation is reduced, the labor intensity of workers is reduced, and the safety of the equipment is improved; in addition, the flow metering unit is additionally arranged on the feeding pipe, the absorption medium is arranged in the tank body, and the modes of metering feeding and enhancing gas-liquid blending are utilized, so that the reaction efficiency is improved, the loss of raw materials is reduced, and the purpose of improving the yield of phosphorus trichloride is achieved.

Description

Technical Field

[0001] This application relates to the technical field of phosphorus trichloride production, and particularly to a metering and absorption kettle for phosphorus trichloride. Background Art

[0002] Currently, the lids of phosphorus trichloride production devices on the market are opened manually, which results in high manual labor intensity and poor safety. At the same time, there are also technical bottlenecks in the high-efficiency production of phosphorus trichloride. To address this, a metering and absorption kettle for phosphorus trichloride is provided herein to solve the above problems. Utility Model Content

[0003] This application provides a metering and absorption kettle for phosphorus trichloride. A cylinder is installed on the side wall of the tank body. When opening and closing the tank lid, only need to control the cylinder to work through the PLC controller, lift or lower the tank lid from one end, and let the other end rotate along the rotating shaft to complete the opening and closing of the tank lid, realizing the mechanized operation of the tank lid, replacing manual operation, reducing the probability of dangerous situations such as pinching the hands of workers due to improper operation, reducing the manual labor intensity, and improving the safety of the equipment; in addition, a flow metering unit is installed on the feed pipe, and an absorption medium is arranged inside the tank body. By using the methods of metering feed and enhancing gas-liquid blending, the reaction efficiency is improved, the loss of raw materials is reduced, and the output of phosphorus trichloride is increased.

[0004] This application provides a metering and absorption kettle for phosphorus trichloride, which includes a tank body. A tank lid is arranged on the top of the tank body. One end of the tank lid is installed on the tank body through a rotating shaft. A cylinder is arranged on the side wall of the tank body. The output end of the cylinder is connected with a rotating structure. The rotating structure is arranged at the bottom of the tank lid. A spray head is arranged at the bottom of the tank lid. The input end of the spray head is connected with a feed pipe. A flow metering unit and a feed valve are arranged on the feed pipe in sequence. An observation mirror, a temperature and pressure detector, and an exhaust pipe are arranged on the top of the tank lid. An exhaust valve and an exhaust pump are arranged on the exhaust pipe in sequence. An absorption medium is arranged inside the tank body. A feed pipe is arranged on the side wall of the tank body. A feed valve is arranged on the feed pipe. A sandwich layer is additionally installed on the side wall of the tank body. An inlet pipe and an outlet pipe are arranged on the sandwich layer. A discharge pipe is arranged at the bottom of the tank body. A discharge valve is arranged on the discharge pipe.

[0005] Further, the cylinder, the flow metering unit, the feed valve, the temperature and pressure detector, the exhaust valve, the exhaust pump, the feed valve, and the discharge valve are all connected to the same PLC controller by wires.

[0006] Further, the tank lid can rotate along the rotating shaft.

[0007] Further, the absorption medium is located above the feed pipe.

[0008] Further, the inside of the sandwich layer is a serpentine channel.

[0009] Furthermore, a sealing ring is provided around the bottom of the can lid.

[0010] As can be seen from the above technical solutions, the present application provides a metering and absorption kettle for phosphorus trichloride, including a tank body. A tank cover is arranged at the top of the tank body, which is a container for the fusion reaction of liquid phosphorus trichloride and gaseous phosphorus trichloride. One end of the tank cover is installed on the tank body through a rotating shaft, providing strong support for the opening and closing of the tank cover. A cylinder is arranged on the side wall of the tank body, which is a kinetic energy output structure. When opening and closing the tank cover, under the control of the PLC controller, the tank cover is lifted or lowered from one end of the top of the tank body, and the other end rotates along the rotating shaft to complete the opening and closing of the tank cover, thus realizing the mechanized operation of the tank cover, replacing manual operation, reducing the probability of dangerous situations such as pinching the hands of workers due to improper operation, reducing the manual labor intensity, and enhancing the safety of the equipment. The output end of the cylinder is connected with a rotating structure, which is arranged at the bottom of the tank cover and is used for the rotation of the output end of the cylinder on the tank cover. During the opening or closing process of the tank cover, the included angle between the cylinder and the tank cover is adjusted to provide strong support for the opening and closing of the tank cover. A spray head is arranged at the bottom of the tank cover, which is a spraying device for spraying liquid phosphorus trichloride into the tank body, and can disperse and spray liquid phosphorus trichloride into the tank body to increase the fusion rate of liquid phosphorus trichloride and gaseous phosphorus trichloride. The input end of the spray head is connected with a feed pipe, which is a pipeline for liquid phosphorus trichloride to enter the interior of the tank body. A flow metering unit and a feed valve are sequentially arranged on the feed pipe. The flow metering unit plays a role in monitoring and metering, and is used to monitor and meter the flow rate of liquid phosphorus trichloride entering the interior of the tank body through the feed pipe, and transmit the monitoring and metering results back to the PLC controller, so that the PLC controller can control the feed valve and adjust the size of the internal channel of the feed pipe. In combination with the feed valve, the purpose of accurate metering of the feed is achieved, providing strong support for high-quality products and efficient production of phosphorus trichloride. An observation mirror, a temperature and pressure detector, and an exhaust pipe are arranged on the top of the tank cover. The observation mirror plays an observation role, facilitating the staff to understand the fusion reaction situation of gaseous phosphorus trichloride and liquid phosphorus trichloride in the tank body in real time. The temperature and pressure detector can detect the temperature and pressure values in the tank body in real time and transmit the detection results back to the PLC controller, so that the PLC controller can control relevant electric control components to achieve accurate temperature control and pressure control, enabling phosphorus trichloride to undergo a fusion reaction under the best conditions to achieve the purpose of efficient reaction. The exhaust pipe is a pipeline for discharging the unreacted tail gas from the interior of the tank body after the reaction is completed, which is conducive to concentrating and guiding it into a tail gas collection and treatment device for centralized treatment of the tail gas before discharging, so as to reduce environmental pollution and the occurrence of safety accidents. An exhaust valve and an exhaust pump are sequentially arranged on the exhaust pipe. The exhaust valve plays a control role, controlling the opening and closing of the internal channel of the exhaust pipe. During the reaction process, the internal channel of the exhaust pipe is closed to achieve the purpose of sealing the tank body and reducing the loss of gaseous phosphorus trichloride. After the reaction is completed, it is opened to allow the tail gas to be discharged, so as to achieve the purpose of reducing production costs and increasing production. The exhaust pump is a kinetic energy output structure. During the process of discharging the tail gas, it outputs kinetic energy, sucks the tail gas in the tank body through the exhaust pipe, and transports it to the tail gas collection and treatment device. An absorption medium is arranged inside the tank body, which plays an auxiliary role.Enhance the absorption of gaseous phosphorus trichloride and liquid phosphorus trichloride, improve the blending efficiency of the two, so as to achieve the purpose of high-efficiency reaction output. A feeding pipe is arranged on the side wall of the tank body, which is the pipeline for gaseous phosphorus trichloride to enter the interior of the tank body. A feeding valve is arranged on the feeding pipe to play a control role, controlling the opening and closing of the internal channel of the feeding pipe. A sandwich layer is additionally installed on the side wall of the tank body, which is the channel for the medium controlling the temperature of the tank body to flow on the side wall of the tank body. Its internal channel is serpentine, providing strong support for the precise and uniform temperature control of the tank body. An inlet pipe and an outlet pipe are arranged on the sandwich layer. The inlet pipe is the pipeline for the medium to enter the interior of the sandwich layer, and the outlet pipe is the pipeline for the medium to discharge from the interior of the sandwich layer. It is used in conjunction with the inlet pipe to provide strong support for the flow of the medium. A discharge pipe is arranged at the bottom of the tank body, which is the discharge pipeline for the finally generated phosphorus trichloride product. A discharge valve is arranged on the discharge pipe to play a control role, controlling the opening and closing of the internal channel of the discharge pipe. During the reaction process, the internal channel of the discharge pipe is closed to achieve the purpose of sealing the tank body, reducing the loss of gaseous phosphorus trichloride, so as to reduce production costs and increase production. After the reaction is completed, it is opened to allow the finally generated phosphorus trichloride product to be discharged and collected through the discharge pipe.,

[0011] In summary, the beneficial effects of this application are as follows:

[0012] 1. A cylinder is additionally installed on the side wall of the tank body. When opening and closing the tank cover, only need to control the cylinder to work through the PLC controller, lift or lower the tank cover from one end, and let the other end rotate along the rotating shaft to complete the opening and closing of the tank cover, realizing the mechanized operation of the tank cover, replacing manual operation, reducing the probability of dangerous situations such as pinching the hands of workers due to improper operation, reducing the manual labor intensity, and improving the safety of the equipment.

[0013] 2. A flow metering unit is additionally installed on the feeding pipe, and an absorption medium is arranged inside the tank body. By using the methods of metering the feed and enhancing the gas-liquid blending, the reaction efficiency is improved, the loss of raw materials is reduced, and the purpose of increasing the output of phosphorus trichloride is achieved.

[0014] 3. An exhaust pipe is arranged at the top, which can introduce the tail gas into the tail gas collection and treatment device, and the tail gas is centrally treated and then discharged, reducing environmental pollution and the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of this application, the drawings required to be used in the implementation cases will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative labor.

[0016] Figure 1 It is a schematic structural diagram of this application.

[0017] Illustration of the drawings:

[0018] Among them, 1 - tank body, 2 - tank cover, 3 - cylinder, 4 - spray head, 5 - feed pipe, 6 - flow measurement unit, 7 - feed valve, 8 - observation mirror, 9 - temperature and pressure detector, 10 - exhaust pipe, 11 - exhaust valve, 12 - exhaust pump, 13 - interlayer, 14 - inlet pipe, 15 - outlet pipe, 16 - injection pipe, 17 - injection valve, 18 - absorption medium, 19 - discharge pipe, 20 - discharge valve. Specific implementation mode

[0019] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings.

[0020] It can be seen from the above technical solutions that:

[0021] Embodiment 1:

[0022] See Figure 1 .

[0023] A metering and absorption kettle for phosphorus trichloride, comprising a tank body 1. A tank cover 2 is arranged at the top of the tank body 1, which is a container for the fusion reaction of liquid phosphorus trichloride and gaseous phosphorus trichloride. One end of the tank cover 2 is installed on the tank body 1 through a rotating shaft, providing strong support for the opening and closing of the tank cover 2. A cylinder 3 is arranged on the side wall of the tank body 1, which is a kinetic energy output structure. When opening and closing the cover, under the control of the PLC controller, the tank cover 2 is lifted or lowered from one end of the top of the tank body 1, and the other end rotates along the rotating shaft to complete the opening and closing of the tank cover 2, thus realizing the mechanized operation of the tank cover 2, replacing manual operation, reducing the probability of dangerous situations such as pinching the hands of workers due to improper operation, reducing the manual labor intensity, and enhancing the safety of the equipment. The output end of the cylinder 3 is connected with a rotating structure, which is arranged at the bottom of the tank cover 2 and is used for the rotation of the output end of the cylinder 3 on the tank cover 2. During the opening or closing process of the tank cover 2, the included angle between the cylinder 3 and the tank cover 2 is adjusted to provide strong support for the opening and closing of the tank cover 2. A spray head 4 is arranged at the bottom of the tank cover 2, which is a spraying device for spraying liquid phosphorus trichloride into the tank body 1. It can disperse and spray liquid phosphorus trichloride into the tank body 1 to increase the fusion rate of liquid phosphorus trichloride and gaseous phosphorus trichloride. The input end of the spray head 4 is connected with a feed pipe 5, which is a pipe for liquid phosphorus trichloride to enter the interior of the tank body 1. A flow metering unit 6 and a feed valve 7 are successively arranged on the feed pipe 5. The flow metering unit 6 plays a role in monitoring and metering, and is used for monitoring and metering the flow rate of liquid phosphorus trichloride entering the interior of the tank body 1 through the feed pipe 4, and conveying the monitoring and metering results back to the PLC controller, so that the PLC controller can control the feed valve 7 to adjust the size of the internal channel of the feed pipe 5. Combined with the feed valve 8, it realizes the purpose of accurate metering of the feed, providing strong support for the high-quality products and high-efficiency output of phosphorus trichloride. An observation mirror 8, a temperature and pressure detector 9 and an exhaust pipe 10 are arranged on the top of the tank cover 2. The observation mirror 8 plays an observation role, facilitating the staff to understand the fusion reaction situation of gaseous phosphorus trichloride and liquid phosphorus trichloride in the tank body 1 in real time. The temperature and pressure detector 9 can detect the temperature and pressure values in the tank body 1 in real time and convey the detection results back to the PLC controller, so that the PLC controller can control relevant electric control components to realize accurate temperature control and pressure control, enabling phosphorus trichloride to react under the best conditions to achieve the purpose of efficient reaction. The exhaust pipe 10 is a pipe for discharging the unreacted tail gas from the interior of the tank body 1 after the reaction is completed. It is beneficial to centrally introduce it into the tail gas collection and treatment device, and then discharge it after centralized treatment of the tail gas to reduce environmental pollution and the occurrence of safety accidents. An exhaust valve 11 and an exhaust pump 12 are successively arranged on the exhaust pipe 10. The exhaust valve 11 plays a control role, controlling the opening and closing of the internal channel of the exhaust pipe 10. During the reaction process, the internal channel of the exhaust pipe 10 is closed to achieve the purpose of sealing the tank body 1 and reducing the loss of gaseous phosphorus trichloride. After the reaction is completed, it is opened to let the tail gas escape to achieve the purpose of reducing production costs and increasing production. The exhaust pump 12 is a kinetic energy output structure, and outputs kinetic energy during the process of discharging the tail gas.The tail gas in the tank body 1 is sucked out through the exhaust pipe 10 and transported to the tail gas collection and treatment device. An absorption medium 18 is arranged inside the tank body 1 to play an auxiliary role, enhancing the absorption of gaseous phosphorus trichloride and liquid phosphorus trichloride and improving the blending efficiency of the two, so as to achieve the purpose of high-efficiency reaction output. A feeding pipe 16 is arranged on the side wall of the tank body 1, which is the pipeline for gaseous phosphorus trichloride to enter the inside of the tank body 1. A feeding valve 17 is arranged on the feeding pipe 16 to play a control role, controlling the opening and closing of the internal channel of the feeding pipe 16. A sandwich layer 13 is additionally installed on the side wall of the tank body 1, which is the channel for the medium controlling the temperature of the tank body 1 to flow on the side wall of the tank body. Its internal channel is serpentine-shaped, providing strong support for the precise and uniform temperature control of the tank body 1. An inlet pipe 14 and an outlet pipe 15 are arranged on the sandwich layer 13. The inlet pipe 14 is the pipeline for the medium to enter the inside of the sandwich layer 13, and the outlet pipe 14 is the pipeline for the medium to discharge from the inside of the sandwich layer 14. It is used in cooperation with the inlet pipe 14 to provide strong support for the flow of the medium. A discharge pipe 19 is arranged at the bottom of the tank body 1, which is the discharge pipeline for the finally produced phosphorus trichloride product. A discharge valve 20 is arranged on the discharge pipe 19 to play a control role, controlling the opening and closing of the internal channel of the discharge pipe 19. During the reaction process, the internal channel of the discharge pipe 19 is closed to achieve the purpose of sealing the tank body 1, reducing the loss of gaseous phosphorus trichloride, so as to achieve the purpose of reducing production costs and increasing production. After the reaction is completed, it is opened to allow the finally produced phosphorus trichloride product to be discharged and collected through the discharge pipe 19.

[0024] As a preferred embodiment, the cylinder 3, the flow metering unit 6, the feed valve 7, the temperature and pressure detectors 9, the exhaust valve 11, the exhaust pump 12, the feed valve 17 and the discharge valve 20 are connected in line to the same PLC controller, which plays a control role, controlling the coordinated operation of the electric control components such as the cylinder 3, the flow metering unit 6, the feed valve 7, the temperature and pressure detectors 9, the exhaust valve 11, the exhaust pump 12, the feed valve 17 and the discharge valve 20, so as to achieve the purpose of ensuring the product quality while realizing high-efficiency output.

[0025] As a preferred embodiment, the tank cover 2 can rotate along the rotating shaft, providing strong support for the mechanical opening and closing of the tank cover 2.

[0026] As a preferred embodiment, the absorption medium 18 is located above the feeding pipe 16.

[0027] As a preferred embodiment, the inside of the sandwich layer 13 is a serpentine-shaped channel, realizing the uniform temperature control of the tank body 1 and ensuring the orderly progress of the reaction.

[0028] As a preferred embodiment, a sealing ring is arranged around the bottom of the tank cover 2, improving the sealing performance of the equipment, reducing the risk of tail gas leakage, and thus improving the safety of the equipment.

[0029] Other embodiments of the present application will be readily contemplated by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only regarded as exemplary, and the true scope of the present application is pointed out by the claims.

[0030] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the present application described above do not constitute a limitation on the protection scope of the present application.

Claims

1. A phosphorus trichloride metering and absorption kettle, characterized in that, It includes a tank body (1), a tank cover (2) is arranged at the top of the tank body (1), one end of the tank cover (2) is installed on the tank body (1) through a rotating shaft, a cylinder (3) is arranged on the side wall of the tank body (1), the output end of the cylinder (3) is connected with a rotating structure, the rotating structure is arranged at the bottom of the tank cover (2), a spray head (4) is arranged at the bottom of the tank cover (2), the input end of the spray head (4) is connected with a feed pipe (5), a flow metering unit (6) and a feed valve (7) are sequentially arranged on the feed pipe (5), an observation mirror (8), a temperature and pressure detector (9) and an exhaust pipe (10) are arranged at the top of the tank cover (2), an exhaust valve (11) and an exhaust pump (12) are sequentially arranged on the exhaust pipe (10), an absorption medium (18) is arranged inside the tank body (1), a charging pipe (16) is arranged on the side wall of the tank body (1), a charging valve (17) is arranged on the charging pipe (16), a sandwich layer (13) is additionally installed on the side wall of the tank body (1), an inlet pipe (14) and an outlet pipe (15) are arranged on the sandwich layer (13), a discharge pipe (19) is arranged at the bottom of the tank body (1), and a discharge valve (20) is arranged on the discharge pipe (19).

2. The phosphorus trichloride metering and absorption kettle according to claim 1, characterized in that, The cylinder (3), the flow metering unit (6), the feed valve (7), the temperature and pressure detector (9), the exhaust valve (11), the exhaust pump (12), the charging valve (17) and the discharge valve (20) are connected to the same PLC controller by wires.

3. A phosphorus trichloride metering and absorption kettle according to claim 1, characterized in that, The tank cover (2) is rotatable along the rotating shaft.

4. A phosphorus trichloride metering and absorption kettle according to claim 1, characterized in that, The absorption medium (18) is located above the charging pipe (16).

5. A phosphorus trichloride metering and absorption kettle according to claim 1, characterized in that, The inside of the sandwich layer (13) is a serpentine channel.

6. A phosphorus trichloride metering and absorption kettle according to claim 1, characterized in that, A sealing ring is arranged around the bottom of the tank cover (2).

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