A device and method for preparing flakes of high-purity phosphorus pentasulfide

Abstract

The invention provides a preparation and flake formation device and a method for high-purity phosphorus pentasulfide, so as to solve the problems of low production efficiency and easy spontaneous combustion of liquid yellow phosphorus in the preparation process of phosphorus pentasulfide. The device comprises a reactor and two feeding pipes arranged on the top of the reactor, a stirrer coaxially rotates in the reactor, a stirring motor is fixed on the top of the stirrer, an air intake pipe is connected to the top of the reactor, an air supply pump is externally connected to the air intake pipe, and a conveying device is fixed on the bottom of the reactor; through the arrangement of the feeding pipe, an arc-shaped material tray and two rotating drums, the material flows into the arc-shaped material tray through the feeding pipe, when the rotating drum rotates, the material adheres to the rotating drum, the material agglomerates and hardens after cooling, and falls on a material guide plate under the action of a scraper, compared with the single-drum device, the double-drum device has higher production efficiency, and can also adjust the thickness of the material by extrusion, so that the flake thickness of the material is more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of flaking machine equipment, in particular to a device and method for preparing flaking of high-purity phosphorus pentasulfide. Background Art

[0002] Phosphorus pentasulfide is an inorganic compound that is a yellow solid. Under dry conditions, this substance is relatively stable, but when it comes into contact with water, it undergoes a hydrolysis reaction to produce phosphoric acid and hydrogen sulfide, a process that produces the typical rotten egg smell.

[0003] The raw materials for preparing phosphorus pentasulfide are yellow phosphorus and sulfur. Most manufacturers use the gas phase method to prepare it. The gaseous yellow phosphorus and sulfur are introduced into the reactor and mixed. The generated phosphorus pentasulfide is initially in the form of gas. In order to obtain a solid product, these gaseous phosphorus pentasulfide will be introduced into a condensation system, and through cooling (such as using heat transfer oil cooling) it will be converted from gas to liquid, and then further cooled and solidified into a solid.

[0004] The rotary drum slicer is a mechanical device specially used to cool liquid or molten materials into solid state and cut them into slices. It is also a commonly used device on the market to convert liquid phosphorus pentasulfide into solid state.

[0005] A Chinese patent with application number CN202310664041.X discloses a rotary drum cooling crystallization flake machine, including a bracket and a rotary drum. The rotary drum is driven by a motor. A spray plate is provided on one side of the rotary drum. Shrapnel and a guide frame are fixedly connected to the spray plate. The slurry can be sprayed on the rotary drum to form a slurry layer. The rotary drum drives the slurry layer thereon to rotate. The slurry layer will be cooled by the coolant inside the cooling tube during the rotation, thereby forming flakes. The flakes will be scraped off when they encounter a scraper. The scraper is controlled by an airbag to exert a pressing force on the rotary drum, and when the air inside the airbag is discharged through the air outlet, the scraper will be cooled, and at the same time, it will promote the detachment of the flakes to avoid affecting the subsequent scraping work. The scraped flakes will fall into the inside of the receiving frame, and the baffle door can be opened when they need to be taken out.

[0006] A Chinese patent with application number CN202021368200.X discloses an adjustable drum flaking machine for producing phosphorus pentasulfide, including a protective device and a flaking device. The inner cavity of the protective device is equipped with a flaking device, and a scraper device is installed on the front of the inner cavity of the frame. When the screw rod is rotated, the moving device installed on the outer surface of the screw rod moves by cooperating with sliders and slide grooves installed on both sides, and the positioning rod passes through the moving device. The outer surface of the positioning rod is provided with a scale mark. When the moving device moves, the displacement distance of the moving device can be intuitively seen by adjusting the observation port, which is convenient for adjusting the scraper device. A spring is installed in the inner cavity of the residual material scraping device, and a lifting plate is installed on the upper end of the spring. Through the elastic potential energy of the spring, the second scraper can automatically fit on the surface of the drum, which is convenient for scraping residual material from the drum.

[0007] The existing phosphorus pentasulfide preparation and flake forming equipment still has the following problems:

[0008] 1. In the preparation of phosphorus pentasulfide, the gas phase method is mostly used, and yellow phosphorus and sulfur react to form phosphorus pentasulfide. However, when preparing phosphorus pentasulfide by the gas phase method, too many by-products are produced, which may cause blockage of the exhaust pipe of the reactor. Not only is the operation difficult, but the requirements for related production equipment are also high. However, liquid yellow phosphorus is easy to contact with air and spontaneously combust, affecting the safety of phosphorus pentasulfide production.

[0009] 2. When the phosphorus pentasulfide liquid enters the flaker through the conveying equipment, most of the flakers on the market are single-drum flakers, which results in low production efficiency per unit time.

[0010] 3. The side reaction products of phosphorus pentasulfide prepared by the liquid phase method are greatly reduced. This phenomenon is not only related to the preparation method of phosphorus pentasulfide, but also has a certain relationship with the feeding ratio of yellow phosphorus and sulfur. The feeding ratio of yellow phosphorus and sulfur needs to be adjusted to meet the actual production needs. At the same time, under the same feeding ratio, the feed amount of the reactor per unit time is also different, and the production rate of phosphorus pentasulfide is controlled by the feed amount.

[0011] 4. The flake thickness of phosphorus pentasulfide will affect its stability during storage and use. The commonly used methods for adjusting the flake thickness include: adjusting the immersion depth of the drum and the material, the rotation speed of the drum, setting a thickness adjustment roller, adjusting the position of the scraper, etc. The above methods are not accurate enough for adjusting the flake thickness, and there are problems such as uneven flake thickness and complicated operation. Summary of the invention

[0012] In view of the above problems, the present invention provides a device and method for preparing flakes of high-purity phosphorus pentasulfide, which has the advantages of high production efficiency per unit time and uniform flake thickness.

[0013] The technical solution is as follows: the present invention comprises a reactor, two feeding pipes placed on the top of the reactor, a stirrer coaxially rotating in the reactor, a stirring motor fixed on the top of the stirrer, an air inlet pipe connected to the top of the reactor, an air supply pump externally connected to the air inlet pipe, a conveying device fixed on the bottom of the reactor, a flaker body arranged at one end of the conveying device away from the reactor, a post-ripening reactor arranged between the flaker body and the reactor, and the conveying device fixed on the top of the flaker body;

[0014] Two symmetrically distributed drums are rotatably connected in the flaker body, an arc-shaped material tray located below the drum is fixed in the flaker body, the arc-shaped material tray includes two arc-shaped covers matching the drum, a feed pipe is fixed in the flaker body, one end of the feed pipe is connected to the conveying device, and a reducer located above the arc-shaped material tray is fixed at the other end of the feed pipe, two symmetrically distributed scrapers are fixed in the flaker body, the two scrapers are in contact with the two drums respectively, and a guide plate is arranged below the arc-shaped material tray;

[0015] The two drums are hollow structures and cooling coils are fixed inside. Connecting pipes that penetrate the flaker body are respectively fixed at both ends of the drums, the connecting pipes are communicated with the cooling coils, and the connecting pipes are externally connected to a cooling circulation device. A transmission bevel gear is coaxially fixed on the connecting pipe on the front side, and a transverse shaft is rotatably connected to the front side of the flaker body. Conduction bevel gears are coaxially arranged at both ends of the transverse shaft, and the two conduction bevel gears are respectively meshed with corresponding transmission bevel gears. A first bevel gear is coaxially fixed to the middle part of the transverse shaft, a short shaft is arranged on one side of the transverse shaft, and a second bevel gear meshing with the first bevel gear is coaxially fixed on the short shaft. A support platform is arranged on the front side of the flaker body, and a reducer is arranged on the top of the support platform. A long shaft is fixed to the output end of the reducer, and a rotating motor is arranged at the input end of the reducer. An end of the long shaft away from the reducer is rotatably connected to the flaker body, and the short shaft and the long shaft are connected by a synchronous belt drive.

[0016] Preferably, a flow controller is provided on each of the two feed pipes, and the flow controller includes a shell coaxially fixed with the feed pipe, an adjusting ball is rotatably connected in the shell, the adjusting ball is a hollow structure and is penetrated by a plurality of equidistant adjusting holes, the diameters of the plurality of adjusting holes are gradually increased, a spherical sleeve is rotatably connected between the adjusting ball and the shell, a through hole is penetrated by the spherical sleeve, the diameter of the through hole is larger than the maximum diameter of the adjusting hole, first annular grooves are provided on the inner walls on both sides of the spherical sleeve, a plurality of circumferentially evenly distributed one-way limit teeth are fixed on the first annular groove, second annular grooves corresponding to the first annular grooves are provided on both sides of the outer wall of the adjusting ball, a plurality of circumferentially evenly distributed one-way limit spring pieces are fixed on the second annular groove, pins penetrating the spherical sleeve and the shell are respectively fixed at both ends of the two adjusting balls, and a reduction motor is coaxially fixed on the pins.

[0017] Preferably, a detection rod that slides up and down is provided on one side of the top of the reactor, a detection ring located inside the reactor is fixed at the bottom of the detection rod, the diameter of the detection ring is consistent with the inner diameter of the reactor, a contact plate is fixed at the top of the detection rod, a sleeve coaxial with the detection rod is fixed at the top of the reactor, a controller is fixed at the top of the sleeve, the reduction motor is connected to the controller signal, a contact sensor located just above the contact plate is fixed in the sleeve, and the contact sensor is connected to the controller electrical signal;

[0018] The sleeve includes a base fixed on the reactor, a slot is provided on the base, an adjustment cylinder sliding up and down is arranged in the slot, a plurality of vertically arranged sockets are provided on the base, a pin hole is provided on the adjustment cylinder, and a limit pin is inserted into the pin hole and one of the sockets.

[0019] Preferably, the transverse axis is a hollow structure and is provided with opposite threaded strips at both ends, the two ends of the transverse axis are respectively threadedly connected with connecting tubes, the conductive bevel gear is coaxially fixed with the connecting tube, the two ends of the transverse axis are respectively provided with rectangular limiting holes penetrating the threaded strips, a plurality of circumferentially evenly distributed through grooves are provided in the connecting tube, the width of the through grooves is consistent with the width of the rectangular limiting hole, a strong electromagnet is fixed in the transverse axis, a plug plate is slid up and down in the rectangular limiting hole, an adsorption plate is fixed on the plug plate, and the adsorption plate is connected to the transverse axis through a spring;

[0020] An L-shaped plate is connected to the connecting tube, and one end of the L-shaped plate away from the connecting tube is rotatably connected to the connecting pipe. Two symmetrically distributed first waist-shaped grooves are respectively provided on the front and rear sides of the flaking machine body, and the connecting pipes are respectively located in the corresponding first waist-shaped grooves. Connecting rods are respectively fixed at both ends of the two scrapers, and one end of the connecting rod away from the scraper is rotatably connected to the adjacent connecting pipe.

[0021] Preferably, two symmetrically distributed second waist-shaped grooves are respectively provided on the front and rear sides of the flaker body, the second waist-shaped groove is located above the first waist-shaped groove, a first vertical rod is fixed on the L-shaped plate, a cross rod is fixed on the top of the first vertical rod, the cross rod is located in the second waist-shaped groove, a second vertical rod is fixed at one end of the cross rod away from the first vertical rod, and the bottom of the second vertical rod is rotatably connected to the connecting pipe on the rear side.

[0022] Preferably, the four connecting tubes are all provided with a rotating assembly, the rotating assembly comprises a first ball head tube, the first ball head tube is rotatably connected with a second ball head tube, an air bag is arranged in the second ball head tube, a plurality of flow channels evenly distributed around the circumference are opened in the second ball head tube, the second ball head tube is divided into a vertical portion and a ball head portion, one end of the flow channel is located in the ball head portion, the other end of the flow channel is located in the vertical portion, and a conical guide ring is arranged in the vertical portion;

[0023] The connecting tube on the front side is coaxially fixed with the first ball head tube, and the corresponding second ball head tube is coaxially fixed with a first hose, a circulation box is provided at the end of the first hose away from the second ball head tube, a water pump located on one side of the circulation box is provided on the top of the support platform, the output end of the water pump is connected to the top of the circulation box by a pipe, and a liquid inlet pipe is fixed to the input end of the water pump, the connecting tube on the rear side is coaxially fixed with the second ball head tube, and the corresponding first ball head tube is coaxially fixed with a second hose, and return pipes are coaxially fixed on the two second hoses.

[0024] Preferably, the second ball head tube includes two symmetrically distributed hemispherical tubes, and the two hemispherical tubes are connected by a flange.

[0025] Preferably, a guide plate located above the adjusting ball is fixed in the shell, the guide plate is a bowl-shaped structure, a guide hole is opened on the guide plate, and the diameter of the guide hole is larger than the maximum diameter of the adjusting hole.

[0026] Preferably, a plurality of equally spaced liquid distributing pipes are connected between the two arc-shaped covers of the arc-shaped material tray.

[0027] A method for using a device for preparing flakes of high-purity phosphorus pentasulfide comprises the following steps:

[0028] Step 1: nitrogen is filled into the reactor through the air inlet pipe, the air in the reactor is discharged and negative pressure is formed, and then the materials are fed into the reactor, the external feeding equipment of the feed pipe is started, and liquid yellow phosphorus and sulfur enter the reactor through the flow controller;

[0029] Step 2: When adjusting the flow ratio of the two flow controllers, one of the reduction motors is started, and the adjusting ball is rotated to turn the adjusting hole of the corresponding diameter to a vertical state;

[0030] Step 3: Start the stirring motor, and the stirrer stirs and mixes the two materials. The temperature in the reactor is 470℃-520℃;

[0031] Step 4: Liquid level detection of the reactor. The detection ring in the reactor always floats on the liquid surface. When the liquid level in the reactor reaches a certain height, the contact sensor is triggered, and the two reduction motors drive the corresponding adjustment balls to reverse, and the spherical sleeve rotates in the opposite direction by about 90°. At this time, the flow controller is completely closed and the reactor stops feeding;

[0032] Step 5: The electric valve at the bottom of the reactor is opened, the external power source on the conveying equipment is started, and phosphorus pentasulfide passes through the conveying equipment, the feeding pipe and the reducer into the arc-shaped material tray of the flaker body;

[0033] Step 6: The motor is turned on and the two drums rotate. The material adheres to the drums. After cooling, the material agglomerates and hardens. Under the action of the scraper, it falls on the guide plate and finally enters the granulation device under the main body of the flaker.

[0034] Step 7: When adjusting the distance between the two drums, the powerful electromagnet is powered off, and the plug plate is retracted into the rectangular limit hole under the action of the spring. At this time, the connecting tube and the horizontal axis are threadedly connected. When the horizontal axis rotates, the two connecting tubes move closer to or farther away from each other. After the adjustment is completed, the powerful electromagnet is powered on.

[0035] Compared with the existing known technologies, the technical solution provided by the present invention has the following significant effects:

[0036] 1. The liquid phase method is adopted to reduce the steps of converting gas into liquid and reduce the use requirements of related equipment. At the same time, nitrogen is filled into the air inlet pipe to discharge the air inside the reactor, isolating the liquid yellow phosphorus from the air and avoiding spontaneous combustion of yellow phosphorus.

[0037] 2. Through the settings of feeding pipe, arc-shaped material tray, two drums and scraper, compared with single-drum equipment, double-drum equipment has higher production efficiency per unit time, and the distance between the two drums is the shortest, which can also squeeze the thickness of the material, making the thickness of the material more uniform.

[0038] 3. Through the settings of the reduction motor, the adjusting ball, the spherical sleeve and the adjusting hole, the adjusting holes in the two flow controllers are matched differently, which are suitable for different feeding ratios of yellow phosphorus and sulfur to meet the actual production needs. At the same time, under the same feeding ratio, the feed amount of the reactor per unit time can also be controlled, thereby controlling the production rate of phosphorus pentasulfide.

[0039] 4. The distance between the two drums is adjusted through the settings of powerful electromagnets, adsorption plates, plug plates, rectangular limit holes and threaded strips to form phosphorus pentasulfide flakes of different thicknesses. Compared with most thickness adjustment methods on the market, this method has a more precise control over the thickness of the flakes. The thickness of the phosphorus pentasulfide is adjusted before it is completely hardened, and there is no need for manual adjustment, making the operation simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the process of the present invention.

[0041] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0042] Figure 3 It is a three-dimensional cross-sectional view of the reaction kettle in the present invention.

[0043] Figure 4 It is a structural schematic diagram of the flaker body in the present invention.

[0044] Figure 5 It is a schematic diagram of the connection parts such as the return pipe in the present invention.

[0045] Figure 6 The present invention Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0046] Figure 7 It is a cross-sectional view of the flaker body of the present invention.

[0047] Figure 8 It is a structural schematic diagram of the rotary drum and the cooling coil in the present invention.

[0048] Fig. 9 It is a schematic diagram of the rotary drum and the connecting member in the present invention.

[0049] Fig.10 It is a cross-sectional view of the flow controller in the present invention.

[0050] Fig.11 It is a schematic diagram of the adjusting ball and the spherical sleeve in the present invention.

[0051] Fig.12 It is a schematic diagram of the liquid level detection component in the present invention.

[0052] Fig.13 It is a schematic diagram of a powerful electromagnet and a connecting piece in the present invention.

[0053] Fig.14 It is a schematic diagram of the connecting tube and the horizontal axis in the present invention.

[0054] Fig.15 It is a schematic diagram of the first vertical rod and the connecting member in the present invention.

[0055] Fig.16 It is a schematic diagram of the first ball head tube and the connecting piece in the present invention.

[0056] Explanation of the symbols in the schematic diagram:

[0057] 1. Reactor; 2. Feed pipe; 3. Agitator; 4. Agitator motor; 5. Inlet pipe; 6. Conveying equipment; 7. Flaker body; 8. Drum; 9. Arc-shaped tray; 10. Feed pipe; 11. Reducer; 12. Scraper; 13. Guide plate; 14. Cooling coil; 15. Connecting pipe; 16. Transmission bevel gear; 17. Horizontal axis; 18. Conduction bevel gear; 19. First bevel gear; 20. Short axis; 21. Second bevel gear; 22. Support platform; 23. Speed ​​reducer; 24. Long axis; 25. Rotating motor; 26. Housing; 27. Adjusting ball; 28. Adjusting hole; 29. ​​Spherical sleeve; 30. Through hole; 31. One-way limit tooth; 32. One-way limit spring; 33. Speed ​​reducer motor; 34. Detection rod; 35. Detection ring; 36. Contact plate; 37. Sleeve; 39. Contact sensor; 40. Base; 41. Adjustment cylinder; 42. Socket; 43. Limit pin; 44. Threaded strip; 45. Connecting cylinder; 46. Rectangular limit hole; 47. Powerful electromagnet; 48. Insert plate; 49. Adsorption plate; 50. L-shaped plate; 51. First waist-shaped groove; 52. Connecting rod; 53. Second waist-shaped groove; 54. First vertical rod; 55. Cross rod; 56. Second vertical rod; 57. First ball head tube; 58. Second ball head tube; 59. Air bag; 60. Flow channel; 61. Vertical part; 62. Ball head; 63. Conical guide ring; 64. First hose; 65. Circulation box; 66. Water pump; 67. Liquid inlet pipe; 68. Second hose; 69. Return pipe; 70. Guide plate; 71. Guide hole; 72. Liquid dispensing pipe. DETAILED DESCRIPTION

[0058] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0059] Depend on Figures 1 to 9The present invention comprises a reactor 1, two feeding pipes 2 placed on the top of the reactor 1, the two feeding pipes 2 are connected to a feeding device, and liquid yellow phosphorus and sulfur are transported into the reactor 1 through the two feeding pipes 2. A stirrer 3 is coaxially rotated in the reactor 1. There are many types of stirrers 3. In this embodiment, the stirrer 3 is a propeller type, which will not be described in detail here. A stirring motor 4 is fixed on the top of the stirrer 3. The top of the reactor 1 is connected to an air inlet pipe 5, which is connected to an air supply pump. A pressure relief valve is provided on the top of the reactor 1. The air inlet pipe 5 transports nitrogen. It should be noted that a double packing seal is provided between the agitator 3 and the reactor 1. The double packing seal is a sealing structure that improves the sealing reliability and reduces the risk of leakage. It combines two groups of packings (sealing fillers), each group undertakes different sealing functions to achieve a better sealing effect. It should be noted that a temperature controller and a pressure controller are provided in the reactor 1 to control the temperature and pressure inside it. A conveying device 6 is fixed at the bottom of the reactor 1. The conveying device 6 includes corresponding connecting pipes and feeding equipment, such as a chemical pump. The bottom of the reactor 1 is provided with Electric valve, the end of the conveying device 6 away from the reactor 1 is provided with a flaker body 7, and a post-ripening reactor is provided between the flaker body 7 and the reactor 1. In order to prevent the material in the reactor 1 from incomplete reaction, the material can continue to react after entering the post-ripening reactor, and then enter the flaker body 7. The reactor 1 and the post-ripening reactor will both discharge waste gas during the reaction. The reactor 1 and the post-ripening reactor are provided with a liquid seal pressure control device to control the pressure in the reactor 1 and the post-ripening reactor. The liquid seal pressure control device is a prior art and will not be described in detail here. It is noted that the reactor 1 and the post-ripening reactor are both externally connected to the same environmental protection treatment device to treat the waste gas and prevent the waste gas from being directly discharged into the atmosphere. The environmental protection treatment device is a prior art and will not be described here. The conveying device 6 is fixed on the top of the flaker body 7. The liquid sulfur and yellow phosphorus are introduced into the reactor 1 for reaction by a liquid phase method. The stirrer 3 stirs the two materials evenly and accelerates the reaction rate. Compared with the gas phase method, the steps of converting the gas state into the liquid state are reduced, and the use requirements of related equipment are reduced. For example, the temperature and pressure requirements in the reactor 1 are reduced.

[0060] When the phosphorus pentasulfide liquid enters the interior of the flaker through the conveying equipment 6, most of the flakers on the market are single-drum flakers 8, resulting in low production efficiency of the flaker. Two symmetrically distributed drums 8 are rotatably connected in the flaker body 7. An arc-shaped material tray 9 located below the drum 8 is fixed in the flaker body 7. The arc-shaped material tray 9 includes two arc-shaped covers matching the drum 8. The phosphorus pentasulfide liquid is located in the arc-shaped cover. A feeding pipe 10 is fixed in the flaker body 7. One end of the feeding pipe 10 is connected to the conveying equipment 6. A reducing pipe 11 located above the arc-shaped material tray 9 is fixed at the other end of the feeding pipe 10. The material flows into the arc-shaped material tray 9 through the feeding pipe 10 and the reducing pipe 11. Two symmetrically distributed scrapers 12 are fixed in the flaker body 7. The two scrapers 12 are in contact with the two drums 8 respectively. A guide plate 13 is arranged below the arc-shaped material tray 9. The phosphorus pentasulfide solid enters the subsequent granulation device, and the granulation device is connected to the flaker body 7 and is continuously protected by nitrogen. The granulation device crushes the phosphorus pentasulfide flakes according to the specified particle size to obtain the phosphorus pentasulfide finished product. The granulation device is a conventional granulation device and will not be described in detail here. The phosphorus pentasulfide finished product enters the subsequent automatic packaging machine through a conveying pipeline. The automatic packaging machine is connected to the granulation device and is continuously filled with nitrogen. Through the feeding pipe 10, the arc-shaped material tray 9 and the two drums 8, the material flows into the arc-shaped material tray 9 through the feeding pipe 10. When the drum 8 rotates, the material adheres to the drum 8. After cooling, the material agglomerates and hardens, and falls on the guide plate 13 under the action of the scraper 12. Compared with the single drum 8 equipment, the double drum 8 has a higher production efficiency per unit time, and the distance between the two drums 8 is the shortest, and the thickness of the material can also be squeezed, so that the thickness of the flakes of the material is more uniform;

[0061] The two rotating drums 8 are hollow structures and are fixed with cooling coils 14 inside. The cooling coils 14 flow with a coolant of about 30 degrees Celsius, which can be water or coolant. Connecting pipes 15 that penetrate the flaker body 7 are fixed at both ends of the rotating drum 8. The connecting pipes 15 are connected to the cooling coils 14. The connecting pipes 15 are externally connected to a cooling circulation device. The cooling circulation device can adopt the cooling component of the existing flaker. It is only necessary to connect the cooling component to the two rotating drums 8 at the same time. A transmission bevel gear 16 is coaxially fixed on the connecting pipe 15 on the front side. The front side of the flaker body 7 is rotatably connected with a transverse shaft 17. Conductive bevel gears 18 are coaxially arranged at both ends of the transverse shaft 17. The two conductive bevel gears 18 are respectively meshed with the corresponding transmission bevel gears 16. A first bevel gear 19 is coaxially fixed to the middle of the transverse shaft 17. A short shaft 20 is arranged on one side of the transverse shaft 17. The short shaft 20 is perpendicular to the transverse shaft 17. 0 is coaxially fixed with a second bevel gear 21 meshing with the first bevel gear 19, a support platform 22 is provided on the front side of the flaker body 7, a reducer 23 is provided on the top of the support platform 22, the reducer 23 is an existing device, and no more details are given here, a long shaft 24 is fixed on the output end of the reducer 23, a rotating motor 25 is provided on the input end of the reducer 23, the long shaft 24 is rotatably connected to the flaker body 7 at one end away from the reducer 23, the short shaft 20 is connected to the long shaft 24 through a synchronous belt drive, and the rotating motor 25 is provided through the rotating motor 25, the connecting pipe 15 and the cooling coil 14, etc., the rotating motor 25 serves as a power source for the rotation of the two drums 8, the long shaft 24 drives the short shaft 20 to rotate through the synchronous belt transmission structure, and the transverse shaft 17 rotates under the cooperation of the first bevel gear 19 and the second bevel gear 21. When the transverse shaft 17 rotates, the two drums 8 rotate under the drive of the transmission bevel gear 16 and the conduction bevel gear 18, and the rotation directions of the two drums 8 are opposite.

[0062] refer to Figure 2 , Fig.10 and Fig.11As shown, when preparing phosphorus pentasulfide, the overall preparation process is very simple, and it is only necessary to mix yellow phosphorus liquid and sulfur liquid together. However, the simpler the reaction, the more side reaction products it produces, and yellow phosphorus in a liquid state is very easy to spontaneously combust. In order to reduce the by-products in the production process and reduce or even eliminate the spontaneous combustion of yellow phosphorus, a flow controller is provided on the two feed pipes 2, and the flow controller includes a shell 26 coaxially fixed to the feed pipe 2, and an adjusting ball 27 is rotatably connected in the shell 26. The adjusting ball 27 is a hollow structure and is penetrated by a plurality of equidistantly distributed adjusting holes 28, and the diameters of the plurality of adjusting holes 28 are gradually increased. A spherical sleeve 29 is rotatably connected between the adjusting ball 27 and the shell 26, and the spherical sleeve 29 is rotatably connected to the adjusting ball 27. Grease is applied between the joint balls 27 to increase lubrication, and there is a large friction between the spherical sleeve 29 and the inner wall of the shell. When the adjusting ball 27 rotates forward, the spherical sleeve 29 will not rotate. A through hole 30 is penetrated through the spherical sleeve 29, and the diameter of the through hole 30 is larger than the maximum diameter of the adjusting hole 28. First annular grooves are provided on the inner walls on both sides of the spherical sleeve 29, and a plurality of circumferentially uniformly distributed one-way limiting teeth 31 are fixed on the first annular grooves. Second annular grooves corresponding to the first annular grooves are provided on both sides of the outer wall of the adjusting ball 27, and a plurality of circumferentially uniformly distributed one-way limiting spring pieces 32 are fixed on the second annular grooves. The one-way limiting spring pieces 32 are deformable spring pieces made of metal. When the adjusting ball 27 rotates forward, the one-way limiting teeth 31 and the one-way limiting teeth 31 are fixed on the second annular grooves. The one-way limiting spring piece 32 will not cause limiting. On the contrary, the spherical sleeve 29 rotates under the action of the one-way limiting tooth 31 and the one-way limiting spring piece 32. In a normal state, one pair of adjusting holes 28 is in a vertical state. The material in the feed pipe 2 enters the adjusting ball 27 through the adjusting hole 28 and is discharged through the adjusting hole 28 at the bottom. The holes on the other sides are sealed by the spherical sleeve 29. Since the feeding of the reactor 1 is generally intermittent, when the feeding needs to be stopped, it is only necessary to flip the adjusting ball 27. The adjusting ball 27 drives the spherical sleeve 29 to rotate about 90 degrees. At this time, the material in the feed pipe 2 cannot enter the reactor 1 under the obstruction of the spherical sleeve 29. The two ends of the two adjusting balls 27 are respectively fixed with pins that penetrate the spherical sleeve 29 and the shell 26. A reduction motor 33 is coaxially fixed on the pin shaft. Through the settings of the reduction motor 33, the adjusting ball 27 and the spherical sleeve 29, the flow controller is used to control the feeding ratio of yellow phosphorus and sulfur. The adjusting hole 28 on the adjusting ball 27 is used to control the flow. In the same time, the adjusting holes 28 in the two flow controllers are matched differently, which are suitable for different feeding ratios of yellow phosphorus and sulfur. They can also be adjusted in real time during use. At the same time, after the two materials enter the reactor 1, nitrogen is filled into the air inlet pipe 5 to discharge the air inside the reactor 1, isolating the contact between the liquid yellow phosphorus and the air, and preventing the yellow phosphorus from spontaneous combustion. This setting can not only avoid the spontaneous combustion of yellow phosphorus, but also adjust the ratio of the two materials in real time through the flow controller to reduce the generation of by-products.Improve the synthesis efficiency of phosphorus pentasulfide.

[0063] refer to Figure 3 and Fig.12 As shown, the liquid level detection in the reactor 1 in the market generally adopts the method of built-in sensors, but sulfur and yellow phosphorus will produce some corrosive substances during the reaction, which are easy to corrode the sensor and cause it to be damaged. At the same time, it is very inconvenient to replace the sensor. A detection rod 34 that slides up and down is set on one side of the top of the reactor 1, and a detection ring 35 located inside the reactor 1 is fixed at the bottom of the detection rod 34. The diameter of the detection ring 35 is consistent with the inner diameter of the reactor 1. A contact plate 36 is fixed on the top of the detection rod 34, and a sleeve 3 coaxial with the detection rod 34 is fixed on the top of the reactor 1. 7. A contact sensor 39 located just above the contact plate 36 is fixed on the sleeve 37. A control module is arranged in the contact sensor 39. The reduction motor 33 is connected with the contact sensor 39 by electrical signals. Through the detection rod 34, the detection ring 35 and the contact sensor 39, the detection ring 35 always floats on the liquid surface. When the liquid level in the reactor 1 reaches a certain height, the contact plate 36 touches the contact sensor 39, and the two reduction motors 33 are reversed, the flow controller is completely closed, the reactor 1 stops feeding, and the contact sensor 39 is placed on the top of the reactor 1 to facilitate subsequent maintenance;

[0064] At the same time, in order to facilitate the adjustment of the liquid level detection height, the sleeve 37 includes a base 40 fixed on the reactor 1, and a slot is provided on the base 40, and an adjusting cylinder 41 that slides up and down is arranged in the slot, and the contact sensor 39 is located on the adjusting cylinder 41. A plurality of vertically arranged sockets 42 are provided on the base 40, and a pin hole is provided on the adjusting cylinder 41. A limit pin 43 is inserted in the pin hole and one of the sockets 42. Through the settings of the base 40, the adjusting cylinder 41 and the limit pin 43, the worker pulls out the limit pin 43, adjusts the height of the adjusting cylinder 41, and then reinserts the limit pin 43 into the socket 42. This arrangement improves the versatility of the liquid level detection component.

[0065] refer to Figure 6 , Fig.13 and Fig.14As shown, for chemicals such as phosphorus pentasulfide, the thickness of the flakes may affect its stability during storage and use. For example, flakes that are too thick may not be easy to dissolve quickly and evenly, or in some applications, a specific thickness may be required to optimize the reaction contact area. The existing adjustment methods for the thickness of the flakes are: adjusting the immersion depth of the drum 8 and the material, the rotation speed of the drum 8, setting a thickness adjustment roller, adjusting the position of the scraper 12, etc., but for example, the distance between the roller and the drum 8 mostly needs to be adjusted manually, by adjusting the thickness of the material layer peeled off from the surface of the drum 8 when the scraper 12 is scraped. This method is not accurate enough for adjusting the thickness of the flakes, and it is easy to have a situation where the thickness of the flakes is too small or too large. The horizontal axis 17 is a hollow structure and opposite threaded strips 44 are respectively provided at both ends. The two ends of the horizontal axis 17 are respectively threadedly connected with connecting tubes 45. When the connecting tube 45 is in a sliding state, the rotation of the horizontal axis 17 drives the connecting tubes 45 at both ends to move closer or farther away from each other. The conductive bevel gear 18 is coaxially fixed with the connecting tube 45, and rectangular limiting holes 46 penetrating the threaded strip 44 are respectively provided at both ends of the horizontal axis 17, and a plurality of circumferentially evenly distributed through grooves are provided in the connecting tube 45, and the width of the through grooves is consistent with the width of the rectangular limiting holes 46. A strong electromagnet 47 is fixed in the horizontal axis 17, and a plug plate 48 is slidable up and down in the rectangular limiting hole 46, and an adsorption plate 49 is fixed on the plug plate 48, and the adsorption plate 49 is connected to the horizontal axis 17 through a spring. In this embodiment, When the powerful electromagnet 47 is powered on, the adsorption plate 49 is adsorbed on the powerful electromagnet 47, and the plug plate 48 passes through the rectangular limiting hole 46 and is inserted into the through groove of the connecting tube 45. At this time, the connecting tube 45 and the horizontal axis 17 are in a fixed state, and the connecting tube 45 rotates synchronously with the horizontal axis 17. When the powerful electromagnet 47 is powered off, the plug plate 48 is retracted into the rectangular limiting hole 46 under the action of the spring. At this time, the connecting tube 45 and the horizontal axis 17 are threadedly connected. When the horizontal axis 17 rotates, the two connecting tubes 45 move in opposite directions.

[0066] The connecting tube 45 is connected with an L-shaped plate 50, and the end of the L-shaped plate 50 away from the connecting tube 45 is rotatably connected to the connecting tube 15. It should be noted that a limiting rod is provided on a side of the L-shaped plate 50 close to the connecting tube 45, and the limiting rod is connected to the L-shaped plate 50 by a spring. It should be noted that a guide rod can be provided between the limiting rod and the L-shaped plate 50 to limit the extension and contraction direction of the spring. A plurality of limiting holes evenly distributed around the circumference are provided at the connection between the connecting tube 45 and the L-shaped plate 50, and a second electromagnet is provided at the end of the limiting rod away from the limiting hole. When the second electromagnet is energized, the limiting rod is disengaged from the limiting hole, and the L-shaped plate 50 is rotatably connected to the connecting tube 45. When the second electromagnet is powered off, the limiting rod is inserted into the limiting hole under the action of the spring, and the L-shaped plate 50 and the connecting tube 45 are in a fixed state. The front and rear sides of the flaking machine body 7 are respectively provided with two symmetrically distributed The first waist-shaped groove 51, the connecting tube 15 is respectively located in the corresponding first waist-shaped groove 51, and the two ends of the two scrapers 12 are respectively fixed with connecting rods 52, and the end of the connecting rod 52 away from the scraper 12 is rotatably connected to the adjacent connecting tube 15. Under the action of the connecting rod 52, the scraper 12 is always in contact with the surface of the drum 8. The connecting rod 52 can also be replaced by a spring sleeve rod. The scraper 12 is always in close contact with the surface of the drum 8 under the action of the spring. The power-on state of the powerful electromagnet 47 is controlled by the settings of the strong electromagnet 47, the adsorption plate 49 and the plug plate 48, and the state of the connecting tube 45 is adjusted. When the plug plate 48 is separated from the connecting tube 45 and the limit rod is inserted into the limit hole, the connecting tube 45 is in a left and right sliding state. At this time, the rotating motor 25 is rotated again to adjust the distance between the two drums 8, thereby forming phosphorus pentasulfide flakes of different thicknesses.

[0067] refer to Fig.15 As shown, considering that when adjusting the distance between the two drums 8, if only one end of the drum 8 is acted on for adjustment, it is easy to cause the drum 8 to shift. When the axes of the two drums 8 are not parallel, not only will some parts of the flaker body 7 be damaged, but there will also be a problem of inconsistent flake thickness along the axis direction of the drum 8. The front and rear sides of the flaker body 7 are respectively provided with two symmetrically distributed second waist-shaped grooves 53, and the second waist-shaped grooves 53 are located above the first waist-shaped grooves 51. A first vertical rod 54 is fixed on the L-shaped plate 50, and a cross rod 55 is fixed on the top of the first vertical rod 54. The cross rod 55 is located in the second waist-shaped groove 53, and a second vertical rod 56 is fixed at one end of the cross rod 55 away from the first vertical rod 54. The bottom of the second vertical rod 56 is rotatably connected to the connecting pipe 15 on the rear side. Through the second waist-shaped groove 53, the first vertical rod 54 and the cross rod 55, when the connecting tube 45 moves left and right, the connecting pipes 15 at both ends of the drum 8 move at the same time to avoid the axis of the drum 8 from shifting.

[0068] refer to Fig.16As shown, due to the relative rotation between the drum 8 and the external cooling circulation pipelines such as the circulation box 65, the connecting pipe 15 and the connected pipelines need to pay extra attention to the sealing problem to avoid liquid seepage. The four connecting pipes 15 are each provided with a rotating component, and the rotating component includes a first ball head tube 57, and the first ball head tube 57 is rotatably connected to the second ball head tube 58, and the second ball head tube 58 is provided with an air bag 59. A sealing rubber ring can be provided between the first ball head tube 57 and the second ball head tube 58, and a plurality of circumferentially evenly distributed flow channels 60 are opened in the second ball head tube 58. The second ball head tube 58 is divided into a vertical portion 61 and a ball head portion 62. One end of the flow channel 60 is located in the ball head portion 62, and the other end of the flow channel 60 is located in the vertical portion 61. A conical guide ring 63 is arranged in the vertical portion 61. Through the first ball head tube 57, the second ball head tube 58 and the air bag 59, when the coolant enters the second ball head tube 58, part of the coolant enters the flow channel 60 under the action of the conical guide ring 63, and finally enters the air bag 59. The air bag 59 is fully filled and completely fits with the first ball head tube 57, thereby enhancing the sealing performance of the first ball head tube 57 and the second ball head tube 58.

[0069] Furthermore, the connecting pipe 15 on the front side is coaxially fixed with the first ball head tube 57, and the corresponding second ball head tube 58 is coaxially fixed with a first hose 64, and the end of the first hose 64 away from the second ball head tube 58 is provided with a circulation box 65, and the top of the support platform 22 is provided with a water pump 66 located on one side of the circulation box 65, and the output end of the water pump 66 is connected to the top of the circulation box 65 through a pipeline, and the input end of the water pump 66 is fixed with a liquid inlet pipe 67, and the connecting pipe 15 on the rear side is coaxially fixed with the second ball head tube 58, and the corresponding first ball head tube 57 is coaxially fixed with a second hose 68, and the two second hoses 68 are coaxially fixed with a return pipe 69, and the return pipe 69 and the liquid inlet pipe 67 can be connected to the same cooling water tank to form a circulation loop.

[0070] refer to Fig.16 As shown, taking into account the wear and replacement of the airbag 59, in order to facilitate the subsequent replacement of the airbag 59, the second ball head tube 58 includes two symmetrically distributed hemispherical tubes, the two hemispherical tubes are connected by a flange, and the airbag 59 is divided into two parts and fixedly connected to the corresponding hemispherical tubes.

[0071] refer to Fig.10 and Fig.11 As shown, in order to better guide the material in the feed pipe 2 into the adjusting ball 27, a guide plate 70 is fixed in the shell 26 and is located above the adjusting ball 27. The guide plate 70 is a bowl-shaped structure and is provided with a guide hole 71. The diameter of the guide hole 71 is larger than the maximum diameter of the adjusting hole 28.

[0072] refer to Figure 7 As shown, considering that when the materials in the arc-shaped material tray 9 are not at the same liquid level, it will affect the production efficiency of the two drums 8 per unit time, and may even cause a situation where there is no material on one side, a plurality of equally spaced liquid distribution pipes 72 are connected between the two arc-shaped covers of the arc-shaped material tray 9.

[0073] When the present invention is used:

[0074] First, the two feeding pipes 2 respectively deliver liquid yellow phosphorus and sulfur into the reactor 1. When the materials pass through the flow controller, they enter the inside of the regulating ball 27 through the regulating hole 28 and are discharged through the regulating hole 28 at the bottom. The holes on the other sides are sealed by the spherical sleeve 29. Since the feeding of the reactor 1 is generally intermittent, when the feeding needs to be stopped, it is only necessary to flip the regulating ball 27, and the regulating ball 27 drives the spherical sleeve 29 to rotate about 90 degrees. At this time, the materials inside the feeding pipe 2 cannot enter the reactor 1 due to the obstruction of the spherical sleeve 29;

[0075] Then, after the material enters the reactor 1, the stirring motor 4 is started, and the air inlet pipe 5 conveys nitrogen into the reactor 1. The temperature in the reactor 1 is about 470°C-520°C, and the detection ring 35 in the reactor 1 always floats on the liquid surface. When the liquid level in the reactor 1 reaches a certain height, the contact sensor 39 is triggered, and the two reduction motors 33 respectively drive the corresponding adjustment balls 27 to reverse, and the spherical sleeve 29 rotates in the opposite direction by about 90°. At this time, the flow controller is completely closed, and the reactor 1 stops feeding;

[0076] Secondly, the prepared phosphorus pentasulfide enters the flake machine body 7 through the conveying device 6, and the material flows into the arc-shaped material tray 9 through the feeding pipe 10 and the reducer 11. The rotating motor 25 is started, and the two drums 8 rotate in opposite directions under the cooperation of multiple transmission parts. When the drums 8 rotate, the material adheres to the drums 8, and the material agglomerates and hardens after cooling. Under the action of the scraper 12, the phosphorus pentasulfide flakes enter the subsequent granulation device for crushing, and the phosphorus pentasulfide finished product enters the subsequent automatic packaging machine;

[0077] During the cooling cycle of the drum 8, the coolant enters the second ball head tube 58, most of the coolant enters the cooling coil 14, and a small part of the coolant enters the flow channel 60 under the action of the conical guide ring 63, and finally enters the air bag 59. The air bag 59 is fully filled and completely fits with the first ball head tube 57, thereby enhancing the sealing performance of the first ball head tube 57 and the second ball head tube 58;

[0078] Finally, when adjusting the distance between the two rotating drums 8, the power-on state of the powerful electromagnet 47 is controlled to adjust the state of the connecting tube 45. When the plug plate 48 is disengaged from the connecting tube 45 and the limit rod is inserted into the limit hole, the connecting tube 45 is in a left and right sliding state. At this time, the rotating motor 25 is rotated again to adjust the distance between the two rotating drums 8.

[0079] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A device for preparing flakes of high-purity phosphorus pentasulfide, comprising a reaction kettle (1) and two feed pipes (2) placed on the top of the reaction kettle (1), characterized in that: A stirrer (3) is coaxially rotated in the reactor (1), a stirring motor (4) is fixed on the top of the stirrer (3), an air inlet pipe (5) is connected to the top of the reactor (1), the air inlet pipe (5) is externally connected to an air supply pump, a conveying device (6) is fixed on the bottom of the reactor (1), a flaker body (7) is provided at one end of the conveying device (6) away from the reactor (1), a post-ripening reactor is provided between the flaker body (7) and the reactor (1), and the conveying device (6) is fixed on the top of the flaker body (7); Two symmetrically distributed rotating drums (8) are rotatably connected in the flaker body (7), an arc-shaped material tray (9) matching the two rotating drums (8) is fixed in the flaker body (7), a feeding pipe (10) is fixed in the flaker body (7), one end of the feeding pipe (10) is connected to the conveying device (6), and a reducing pipe (11) located above the arc-shaped material tray (9) is fixed at the other end of the feeding pipe (10), two symmetrically distributed scrapers (12) are fixed in the flaker body (7), the two scrapers (12) are in contact with the two rotating drums (8) respectively, and a material guide plate (13) is arranged below the arc-shaped material tray (9); The two rotating drums (8) are hollow structures and have cooling coils (14) fixed inside. Connecting pipes (15) penetrating the flaker body (7) are fixed at both ends of the rotating drums (8). The connecting pipes (15) are in communication with the cooling coils (14). The connecting pipes (15) are externally connected to a cooling circulation device. A transmission bevel gear (16) is coaxially fixed on the front connecting pipes (15). The front side of the flaker body (7) is rotatably connected to a transverse shaft (17). Both ends of the transverse shaft (17) are coaxially connected to a transmission bevel gear (18). The two transmission bevel gears (16) are coaxially connected to the front connecting pipes (15). 18) are respectively meshed with corresponding transmission bevel gears (16); a first bevel gear (19) is coaxially fixedly connected to the middle of the transverse shaft (17); the first bevel gear (19) is meshed with a second bevel gear (21) rotatably connected to the flaker body (7); a support platform (22) is provided on the front side of the flaker body (7); a reducer (23) is provided on the top of the support platform (22); the second bevel gear (21) is connected to the output end of the reducer (23) via a synchronous belt transmission structure; and a rotating motor (25) is provided at the input end of the reducer (23); The transverse shaft (17) is a hollow structure and has two oppositely directed threads (44) at both ends. The two ends of the transverse shaft (17) are respectively threadedly connected to a connecting tube (45). The conductive bevel gear (18) is coaxially fixed to the connecting tube (45). The two ends of the transverse shaft (17) are respectively provided with rectangular limiting holes (46) penetrating the threaded strip (44). The connecting tube (45) is provided with a plurality of circumferentially evenly distributed through grooves, the width of the through grooves being consistent with the width of the rectangular limiting holes (46). A powerful electromagnet (47) is fixed in the transverse shaft (17), the powerful electromagnet (47) is externally connected to a power source, a plug plate (48) is slidable up and down in the rectangular limiting hole (46), an adsorption plate (49) is fixed on the plug plate (48), and the adsorption plate (49) is connected to the transverse shaft (17) via a spring. An L-shaped plate (50) is connected to the connecting tube (45), and one end of the L-shaped plate (50) away from the connecting tube (45) is rotatably connected to the connecting tube (15). Two symmetrically distributed first waist-shaped grooves (51) are respectively provided on the front and rear sides of the flaker body (7), and the connecting tubes (15) are respectively located in the corresponding first waist-shaped grooves (51). Connecting rods (52) are respectively fixed at both ends of the two scrapers (12), and one end of the connecting rod (52) away from the scraper (12) is rotatably connected to the adjacent connecting tube (15); A limiting rod is arranged on a side of the L-shaped plate (50) close to the connecting tube (45); the limiting rod is connected to the L-shaped plate (50) via a spring; a guide rod is arranged between the limiting rod and the L-shaped plate (50) to limit the extension and contraction direction of the spring; a plurality of limiting holes evenly distributed around the circumference are provided at the connection between the connecting tube (45) and the L-shaped plate (50); a second electromagnet is arranged at one end of the limiting rod away from the limiting hole; when the second electromagnet is powered on, the limiting rod is disengaged from the limiting hole; the L-shaped plate (50) is rotatably connected to the connecting tube (45); when the second electromagnet is powered off, the limiting rod is inserted into the limiting hole under the action of the spring; and the L-shaped plate (50) and the connecting tube (45) are in a fixed state; Two symmetrically distributed second waist-shaped grooves (53) are respectively provided on the front and rear sides of the flaker body (7); the second waist-shaped grooves (53) are located above the first waist-shaped grooves (51); a first vertical rod (54) is fixed on the L-shaped plate (50); a cross rod (55) is fixed on the top of the first vertical rod (54); the cross rod (55) is located in the second waist-shaped groove (53); a second vertical rod (56) is fixed on one end of the cross rod (55) away from the first vertical rod (54); the bottom of the second vertical rod (56) is rotatably connected to the rear connecting pipe (15).

2. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 1, characterized in that: The two feed pipes (2) are each provided with a flow controller, the flow controller comprising a housing (26) coaxially fixed with the feed pipe (2), an adjusting ball (27) rotatably connected inside the housing (26), the adjusting ball (27) being a hollow structure and having a plurality of adjusting holes (28) uniformly distributed around the circumference, the apertures of the two adjusting holes (28) corresponding to each other along the diameter direction of the adjusting hole (28) being the same, a spherical sleeve (29) rotatably connected between the adjusting ball (27) and the housing (26), a through hole (30) being penetrated through the spherical sleeve (29), the diameter of the through hole (30) being larger than the diameter of the adjusting hole (2 8), first annular grooves are provided on both inner walls of the spherical sleeve (29), a plurality of circumferentially evenly distributed one-way limiting teeth (31) are fixed to the first annular grooves, second annular grooves corresponding to the first annular grooves are provided on both outer walls of the adjusting ball (27), a plurality of circumferentially evenly distributed one-way limiting spring pieces (32) are fixed to the second annular grooves, pins penetrating the spherical sleeve (29) and the housing (26) are fixed at both ends of the two adjusting balls (27), and two reduction motors (33) are provided on the top of the reactor (1), and the two pins are connected to the corresponding reduction motors (33).

3. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 2, characterized in that: A detection rod (34) that slides up and down is provided on one side of the top of the reactor (1); a detection ring (35) located inside the reactor (1) is fixed at the bottom of the detection rod (34); the outer wall of the detection ring (35) contacts the inner wall of the reactor (1); a contact plate (36) is fixed at the top of the detection rod (34); a sleeve (37) coaxial with the detection rod (34) is fixed at the top of the reactor (1); a contact sensor (39) located directly above the contact plate (36) is fixed on the sleeve (37); The sleeve (37) comprises a base (40) fixed on the reaction kettle (1), the base (40) being provided with a slot, an adjustment cylinder (41) being arranged in the slot and sliding up and down, the base (40) being provided with a plurality of vertically arranged insertion holes (42), the adjustment cylinder (41) being provided with a pin hole, and a limit pin (43) being inserted into the pin hole and one of the insertion holes (42).

4. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 3, characterized in that: The four connecting tubes (15) are all provided with a rotating assembly, the rotating assembly comprising a first ball head tube (57), the first ball head tube (57) being rotatably connected to a second ball head tube (58), the two first ball head tubes (57) on the front side being connected to the two connecting tubes (15) in a one-to-one correspondence, the two second ball head tubes (58) on the rear side being connected to the two connecting tubes (15) in a one-to-one correspondence, an air bag (59) being provided in the second ball head tube (58), a plurality of flow channels (60) evenly distributed around the circumference being provided in the second ball head tube (58), the second ball head tube (58) being divided into a vertical portion (61) and a ball head portion (62), one end of the flow channel (60) being located in the ball head portion (62), the other end of the flow channel (60) being located in the vertical portion (61), and a conical guide ring (63) being provided in the vertical portion (61); A circulation box (65) is fixedly connected to the top of the support platform (22); the two second ball-end tubes (58) on the front side are connected to the circulation box (65) via a hose; a water pump (66) located on one side of the circulation box (65) is arranged on the top of the support platform (22); the output end of the water pump (66) is connected to the top of the circulation box (65) via a pipeline; and the two first ball-end tubes (57) on the rear side are connected to the input end of the water pump (66) via a hose.

5. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 4, characterized in that: The second ball head tube (58) comprises two symmetrically distributed hemispherical tubes, and the two hemispherical tubes are connected via a flange.

6. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 5, characterized in that: A guide plate (70) located above the regulating ball (27) is fixed in the housing (26); the guide plate (70) is a bowl-shaped structure; a guide hole (71) is provided on the guide plate (70); the diameter of the guide hole (71) is greater than the maximum diameter of the regulating hole (28).

7. The device for preparing flakes of high-purity phosphorus pentasulfide according to claim 1, characterized in that: A plurality of equally spaced liquid dispensing pipes (72) are connected between the two arc-shaped covers of the arc-shaped material tray (9).

8. A method for using a device for preparing flakes of high-purity phosphorus pentasulfide, characterized in that: The device for preparing flakes using the high-purity phosphorus pentasulfide according to claim 6 comprises the following steps: Step 1: nitrogen is charged into the reactor (1) through the air inlet pipe (5), the air in the reactor (1) is discharged to form a positive pressure, and the temperature in the reactor (1) is heated to 470° C.-520° C.; Step 2: Start the feeding device connected to the feed pipe (2), and the liquid yellow phosphorus and sulfur enter the reactor (1) through the flow controller; Step 3: Start the stirring motor (4) so ​​that the stirrer (3) stirs and mixes the two materials; Step 4: Open the electric valve at the bottom of the reactor (1) and the external power source on the conveying device (6), and the phosphorus pentasulfide liquid enters the flaker body (7); Step 5: starting the water pump (66), allowing the coolant to enter the cooling coil (14) and form a cooling cycle to cool the surface of the drum (8); Step 6: The rotating motor (25) is started, and the liquid phosphorus pentasulfide adheres to the drum (8). After cooling, the material agglomerates and hardens, and falls onto the guide plate (13) under the action of the scraper (12), and finally enters the granulating device connected to the flaker body (7); Step 7: The granulation device is started, and the phosphorus pentasulfide flakes are crushed according to the specified particle size to obtain the phosphorus pentasulfide finished product, which then enters the automatic packaging machine connected to the granulation device for packaging.

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