Preparation equipment and preparation method of phosphorus trichloride

Abstract

The invention discloses phosphorus trichloride preparation equipment and a preparation method thereof.The phosphorus trichloride preparation equipment comprises a preparation box, a rotating shaft is arranged on the inner wall of the preparation box, a separation tank is movably connected to the interior of the rotating shaft, a groove block is arranged in the separation tank, and a protruding block is movably connected to the interior of the groove block; a cover body is welded to the left side of the protruding block, a connecting shaft is fixedly installed at the bottom of the cover body, a feeding pipe is arranged in the cover body, a groove opening is formed in the separation tank, a rotating column is movably connected into the groove opening, and the other end of the rotating column is sleeved with a first gear shaft; and a servo motor is sleeved with the other end of the first gear shaft. In the preparation process of phosphorus trichloride, efficient separation of solid and liquid in phosphorus trichloride is utilized, so that the production quality of phosphorus trichloride is improved, a small amount of residual phosphorus trichloride raw material can be prepared and separated, energy waste is avoided, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of phosphorus trichloride production equipment, in particular to phosphorus trichloride preparation equipment and a preparation method. Background Art

[0002] Phosphorus trichloride is an inorganic compound composed of phosphorus and chlorine atoms. It has important applications in chemistry, especially as a catalyst, reducing agent and raw material. There are many methods for preparing phosphorus trichloride, the most common of which is to react phosphorus with chlorine. As an important inorganic compound, phosphorus trichloride has a wide range of applications in the chemical industry. It can not only be used as a chlorination agent and dehydrating agent, but also can be used to synthesize phosphine compounds. Through reasonable preparation methods and applications, phosphorus trichloride can bring more possibilities to the field of organic synthesis and promote the development of the chemical industry.

[0003] In the existing phosphorus trichloride preparation process, the solid-liquid separation in phosphorus trichloride is not thorough enough, which affects the production quality of phosphorus trichloride. In addition, the preparation and separation of phosphorus trichloride raw materials easily causes energy waste, which increases production costs. Summary of the invention

[0004] The invention aims to solve the problems that the solid-liquid separation in phosphorus trichloride is not thorough enough in the existing phosphorus trichloride preparation process, which affects the production quality of phosphorus trichloride, and the phosphorus trichloride raw material is easily wasteful of energy during preparation and separation, which increases the production cost, and the preparation equipment and method of phosphorus trichloride are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The preparation equipment of phosphorus trichloride comprises a preparation box, the inner wall of the preparation box is provided with a rotating shaft, and the interior of the rotating shaft is movably connected with a separation tank, the interior of the separation tank is provided with a groove block, and the interior of the groove block is movably connected with a protrusion, a cover body is welded on the left side of the protrusion, and a connecting shaft is fixedly installed on the bottom of the cover body, a feeding pipe is provided inside the cover body, a groove opening is opened inside the separation tank, and a rotating column is movably connected inside the groove opening, a first gear shaft is sleeved on the outside of the other end of the rotating column, and a servo motor is sleeved on the inside of the other end of the first gear shaft, a second gear shaft is fixedly connected to the bottom of the first gear shaft, and a fixed box is fixedly installed on the outside of the second gear shaft, a filter plate is provided inside the preparation box, a storage box is provided around the inner side of the preparation box, and an electric push rod is fixedly installed inside the storage box, a scraper is fixedly installed on the bottom of the electric push rod, and connecting rods are welded on the left and right sides of the scraper, a pulley is sleeved on the outside of the other end of the connecting rod, and a slide rail is fixedly installed on the outside of the pulley.

[0006] Preferably, a lifting structure is formed between the scraper and the preparation box through an electric push rod and a pulley, and the length of the scraper is equal to the length of the preparation box.

[0007] Preferably, a rotating structure is formed between the separation tank and the preparation box through a servo motor and a rotating column, and the outer wall of the servo motor is tightly fitted with the inner wall of the first gear shaft.

[0008] Preferably, a rotating structure is formed between the rotating column and the preparation box through a first gear shaft and a second gear shaft, and the first gear shaft and the second gear shaft are meshed with each other.

[0009] Preferably, a fixing structure is formed between the separation tank and the cover body by a groove block and a convex block, and the length of the convex block is smaller than the length of the groove block.

[0010] Preferably, a detachable structure is formed between the separation tank and the preparation box through the groove opening and the rotating shaft, and the inner wall of the groove opening is tightly fitted with the outer wall of the rotating column.

[0011] The present invention also proposes a method for preparing phosphorus trichloride, comprising the following steps: Step 1, start the servo motor, the servo motor drives the first gear shaft to rotate, and drives the separation tank to rotate through the rotating column and the rotating shaft to separate the raw materials in the separation tank into solid and liquid; Step 2, operate the hand crank, the hand crank drives the separation tank to rotate through the second gear shaft, the first gear shaft, and the rotating column, and further separates the remaining small amount of raw materials; Step 3, start the electric push rod, which drives the scraper to perform lifting operations through the pulley, the connecting rod, and the slide rail, so that the phosphorus trichloride raw material on the inner side of the preparation box can be easily processed; Step 4, operate the separation tank so that the separation tank moves outside the rotating shaft, and then operate the cover body so that the protrusion moves outside the groove block to clean the solid impurities inside the separation tank.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, a fixed box, a separation tank, a filter plate and a servo motor are provided. The separation tank can be controlled to rotate by controlling the servo motor. The separation tank and the filter plate can be used to conveniently perform double filtration on the raw materials, and the separation effect is good, thereby ensuring the product quality. The second gear shaft in the fixed box can also be manually operated to control the separation tank to rotate, thereby facilitating the separation of a small amount of raw materials, reducing operating costs and improving economic benefits.

[0013] 2. In the present invention, an electric push rod, a pulley, a slide rail and a scraper are provided. The electric push rod can be controlled to drive the scraper to perform a lifting operation. The lifting of the scraper facilitates the processing of the separation liquid on the inner side of the preparation box, thereby preventing the separation liquid from remaining on the inner side of the preparation box, thereby improving the separation efficiency of the phosphorus trichloride raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the preparation box in the present invention; Figure 2 It is a schematic diagram of the scraper structure in the present invention; Figure 3 It is a schematic diagram of the connection structure between the separation tank and the cover body in the present invention.

[0015] Legend: 1. Preparation box; 2. Separation tank; 3. Feed pipe; 4. Cover body; 5. Rotating shaft; 6. Groove mouth; 7. Rotating column; 8. First gear shaft; 9. Servo motor; 10. Second gear shaft; 11. Fixed box; 12. Filter plate; 13. Storage box; 14. Electric push rod; 15. Scraper; 16. Connecting rod; 17. Pulley; 18. Slide rail; 19. Bump; 20. Groove block; 21. Connecting shaft. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Reference Figure 1-3, a preparation device and a preparation method of phosphorus trichloride, comprising a preparation box 1, a separation tank 2, a feed pipe 3, a cover body 4, a rotating shaft 5, a groove opening 6, a rotating column 7, a first gear shaft 8, a servo motor 9, a second gear shaft 10, a fixing box 11, a filter plate 12, a storage box 13, an electric push rod 14, a scraper 15, a connecting rod 16, a pulley 17, a slide rail 18, a convex block 19, a groove block 20 and a connecting shaft 21, the inner wall of the preparation box 1 is provided with a rotating shaft 5, and the inner part of the rotating shaft 5 is movably connected with the separation tank 2, the separation tank 2 and the preparation box 1 form a rotating structure through the servo motor 9 and the rotating column 7, and the outer wall of the servo motor 9 is connected to the first gear The inner wall of the shaft 8 fits tightly, and the servo motor 9 is started. The servo motor 9 drives the separation tank 2 to rotate through the rotating column 7, so that the separation of the phosphorus trichloride raw material is conveniently completed. The separation tank 2 and the cover body 4 are fixedly structured by the groove block 20 and the protrusion 19, and the length of the protrusion 19 is less than the length of the groove block 20. The cover body 4 is manually operated, and the cover body 4 makes the protrusion 19 move into the groove block 20 in the separation tank 2, so that the closing work of the separation tank 2 is conveniently completed. The separation tank 2 and the preparation box 1 are detachable through the groove opening 6 and the rotating shaft 5, and the inner wall of the groove opening 6 is tightly fitted with the outer wall of the rotating column 7.The separation tank 2 is manually operated and moved to the outside of the rotating shaft 5, so that it is convenient to complete the disassembly of the separation tank 2. A groove block 20 is provided inside the separation tank 2, and a protrusion 19 is movably connected inside the groove block 20. A cover body 4 is welded on the left side of the protrusion 19, and a connecting shaft 21 is fixedly installed on the bottom of the cover body 4. A feeding pipe 3 is provided inside the cover body 4. A groove opening 6 is opened inside the separation tank 2, and a rotating column 7 is movably connected inside the groove opening 6. A rotating structure is formed between the rotating column 7 and the preparation box 1 through a first gear shaft 8 and a second gear shaft 10, and the first gear shaft 8 and the second gear shaft 10 are meshed with each other. The hand crank is manually operated, and the hand crank drives the rotating column 7 to rotate through the first gear shaft 8 and the second gear shaft 10, so that it is convenient to separate a small amount of phosphorus trichloride raw material. The other end of the rotating column 7 is externally sleeved with the first gear shaft 8, and the other end of the first gear shaft 8 is A servo motor 9 is sleeved inside one end, a second gear shaft 10 is fixedly connected to the bottom of the first gear shaft 8, and a fixed box 11 is fixedly installed on the outside of the second gear shaft 10, a filter plate 12 is arranged inside the preparation box 1, a storage box 13 is arranged around the inner side of the preparation box 1, and an electric push rod 14 is fixedly installed inside the storage box 13, a scraper 15 is fixedly installed at the bottom of the electric push rod 14, and connecting rods 16 are welded on the left and right sides of the scraper 15, a lifting structure is formed between the scraper 15 and the preparation box 1 through the electric push rod 14 and a pulley 17, and the length of the scraper 15 is equal to the length of the preparation box 1, the electric push rod 14 is started, and the electric push rod 14 drives the scraper 15 to perform lifting operations through the pulley 17, so that it is convenient to process the phosphorus trichloride raw material on the inner side of the preparation box 1, the other end of the connecting rod 16 is sleeved on the outside, and a slide rail 18 is fixedly installed on the outside of the pulley 17.

[0018] Embodiment: When in use, first start the servo motor 9 (model: YS7124), the servo motor 9 drives the separation tank 2 (the outside of the separation tank 2 is a grid-like structure) to rotate through the first gear shaft 8, the rotating column 7, and the rotating shaft 5, so that it is convenient to separate the raw materials in the separation tank 2 from solid and liquid (solid impurities will remain in the separation tank 2, and the phosphorus trichloride raw material will be thrown into the preparation box 1), and the hand crank is manually operated. The hand crank drives the separation tank 2 to rotate through the second gear shaft 10, the first gear shaft 8, and the rotating column 7. The electric push rod 14 (model: L3368) is started, and the electric push rod 14 drives the scraper 15 to perform lifting operation through the pulley 17, the connecting rod 16, and the slide rail 18, so that it is convenient to process the phosphorus trichloride raw material on the inner side of the preparation box 1, and the separation tank 2 is manually operated to move the separation tank 2 to the outside of the rotating shaft 5, and then the cover body 4 is operated, and the cover body 4 moves the protrusion 19 to the outside of the groove block 20, so that it is convenient to clean the solid impurities inside the separation tank 2.

[0019] In the present invention, in the phosphorus trichloride preparation process, the efficient separation of solid and liquid in phosphorus trichloride is utilized to improve the production quality of phosphorus trichloride, and a small amount of residual phosphorus trichloride raw material can be prepared and separated, thereby avoiding energy waste and reducing production costs.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A preparation device for phosphorus trichloride, comprising a preparation box (1), Features: The inner wall of the preparation box (1) is provided with a rotating shaft (5), and the interior of the rotating shaft (5) is movably connected to the separation tank (2), the interior of the separation tank (2) is provided with a groove block (20), and the interior of the groove block (20) is movably connected to a protrusion (19), a cover body (4) is welded to the left side of the protrusion (19), and a connecting shaft (21) is fixedly installed at the bottom of the cover body (4), a feed pipe (3) is provided inside the cover body (4), a groove opening (6) is opened inside the separation tank (2), and the interior of the groove opening (6) is movably connected to a rotating column (7), the other end of the rotating column (7) is sleeved with a first gear shaft (8), and the other end of the first gear shaft (8) is internally connected to the first gear shaft (8). A servo motor (9) is sleeved on the bottom of the first gear shaft (8), a second gear shaft (10) is fixedly connected to the bottom of the first gear shaft (8), and a fixing box (11) is fixedly installed on the outside of the second gear shaft (10), a filter plate (12) is arranged inside the preparation box (1), a storage box (13) is arranged around the inner side of the preparation box (1), and an electric push rod (14) is fixedly installed inside the storage box (13), a scraper (15) is fixedly installed on the bottom of the electric push rod (14), and connecting rods (16) are welded on the left and right sides of the scraper (15), a pulley (17) is sleeved on the other end of the connecting rod (16), and a slide rail (18) is fixedly installed on the outside of the pulley (17).

2. The phosphorus trichloride preparation device according to claim 1, Features: A lifting structure is formed between the scraper (15) and the preparation box (1) via an electric push rod (14) and a pulley (17), and the length of the scraper (15) is equal to the length of the preparation box (1).

3. The preparation equipment of phosphorus trichloride according to claim 1, Features: A rotating structure is formed between the separation tank (2) and the preparation box (1) via a servo motor (9) and a rotating column (7), and the outer wall of the servo motor (9) is tightly fitted to the inner wall of the first gear shaft (8).

4. The preparation equipment of phosphorus trichloride according to claim 1, Features: A rotating structure is formed between the rotating column (7) and the preparation box (1) via a first gear shaft (8) and a second gear shaft (10), and the first gear shaft (8) and the second gear shaft (10) are meshed with each other.

5. The preparation equipment of phosphorus trichloride according to claim 1, Features: A fixing structure is formed between the separation tank (2) and the cover body (4) by means of a groove block (20) and a convex block (19), and the length of the convex block (19) is smaller than the length of the groove block (20).

6. The preparation equipment of phosphorus trichloride according to claim 1, Features: A detachable structure is formed between the separation tank (2) and the preparation box (1) via the groove opening (6) and the rotating shaft (5), and the inner wall of the groove opening (6) is tightly fitted with the outer wall of the rotating column (7).

7. A method for preparing phosphorus trichloride according to claims 1-6, It is characterized in that The following steps are involved: Step 1, starting the servo motor (9), the servo motor (9) drives the first gear shaft (8) to rotate, and drives the separation tank (2) to rotate through the rotating column (7) and the rotating shaft (5), so as to separate the solid and liquid of the raw materials in the separation tank (2); Step 2, operating the hand crank, the hand crank drives the separation tank (2) to rotate through the second gear shaft (10), the first gear shaft (8), and the rotating column (7), so as to further separate the small amount of residual raw materials; Step 3, starting the electric push rod (14), the electric push rod (14) drives the scraper (15) to perform a lifting operation through the pulley (17), the connecting rod (16), and the slide rail (18), so that the phosphorus trichloride raw material on the inner side of the preparation box (1) can be easily processed; Step 4, operating the separation tank (2) so that the separation tank (2) moves to the outside of the rotating shaft (5), and then operating the cover body (4), so that the cover body (4) moves the protrusion (19) to the outside of the groove block (20), and the solid impurities inside the separation tank (2) are cleaned.

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