A method and device for preparing indium phosphide polycrystal

Abstract

The present invention relates to the technical field of indium phosphide polycrystal preparation, and specifically to a method and device for preparing indium phosphide polycrystal, comprising a support base, wherein a carrying plate is fixedly connected to the upper surface of the support base, a connecting mechanism is arranged at the middle position of the inner wall of the bottom end of the carrying plate, a loading and unloading mechanism, an immersion mechanism, a flushing mechanism and a drying mechanism are sequentially distributed on the inner wall of the bottom end of the carrying plate in a circumferential array, an auxiliary mechanism is arranged on the inner wall of the bottom end of the carrying plate, and a carrying mechanism for loading indium phosphide tailings for processing is arranged. Through the circumferential arrangement of the loading and unloading mechanism, the immersion mechanism, the flushing mechanism and the drying mechanism, when preparing indium phosphide polycrystal, multiple processing steps can be gradually cycled, so that multiple processing steps of the indium phosphide tailings are continuously performed, thereby improving the preparation efficiency of indium phosphide polycrystal and reducing the length of time for connecting multiple processing steps.

Description

Technical Field

[0001] The invention relates to the technical field of indium phosphide polycrystal preparation, and in particular to a method and device for preparing indium phosphide polycrystal. Background Art

[0002] Indium phosphide polycrystal is a semiconductor material composed of indium and phosphorus elements. It has good optoelectronic properties, semiconductor performance and stable performance. It is widely used in optical communications, semiconductor lasers, fiber-optic communications and microwave electronic devices. At present, the technology of using indium phosphide tailings to prepare indium phosphide polycrystals should be relatively widespread. Please refer to patent number 2021110458425 and patent name "A method for preparing phosphated steel polycrystals from indium phosphide tailings" and patent number 2023106316204 and patent name "A method for preparing indium phosphide polycrystals from indium phosphide single product cutting waste."

[0003] The preparation method of indium phosphide polycrystal generally includes cleaning and drying of indium phosphide tailings, crushing and fine grinding of indium phosphide tailings, filling and sealing tubes, heating and heat preservation reaction and cooling and taking out, among which cleaning and drying of indium phosphide tailings is a very important step in the preparation process of indium phosphide polycrystals.

[0004] At present, when the indium phosphide tailings are cleaned and dried, the indium phosphide tailings need to be first soaked in a cleaning agent, and then rinsed with deionized water to remove the cleaning agent and some impurities attached to the indium phosphide tailings, and then the rinsed indium phosphide tailings are dried to finally obtain clean indium phosphide tailings. When the indium phosphide tailings are cleaned and dried, multiple processing steps need to be performed on the indium phosphide tailings, and multiple processing spaces are required. When performing the multiple processing steps, the indium phosphide tailings need to be continuously transferred, resulting in low cleaning and drying efficiency of the indium phosphide tailings, which affects the efficiency of preparing indium phosphide crystals. Summary of the invention

[0005] Therefore, the present invention provides a method and device for preparing indium phosphide polycrystal, which solves the above technical problems.

[0006] The present invention provides a method for preparing an indium phosphide polycrystal, which specifically comprises the following steps:

[0007] S1. Cleaning and drying of indium phosphide tailings: The granular indium phosphide tailings are sequentially soaked in cleaning agent, ultrasonically cleaned, rinsed with deionized water, dehydrated with ethanol and dried using cleaning and drying equipment.

[0008] S2. Crushing and fine grinding of indium phosphide tailings: crush and fine grind the dried granular indium phosphide tailings to ensure the uniformity and stability of the particles.

[0009] S3. Filling and sealing the tube: The crushed and finely ground granular indium phosphide tailings and excess red phosphorus are respectively filled into both ends of the quartz tube and vacuum-sealed. Then, the quartz tube is placed in a heater and the heater is placed in a pressure vessel.

[0010] S4. Heating and heat preservation reaction: heat one end of the quartz tube filled with red phosphorus to 570 degrees Celsius, so that the pressure in the quartz tube reaches the dissociation pressure of indium phosphide, and then heat the other end of the quartz tube filled with granular indium phosphide tailings to 1180 degrees Celsius to completely melt the granular indium phosphide tailings and keep them warm, so that the indium-rich in the indium phosphide tailings can fully contact and react with the red phosphorus.

[0011] S5, cooling and taking out: after the contact reaction is completed, the temperature is lowered and the prepared indium phosphide polycrystalline material is taken out.

[0012] The cleaning and drying equipment involved in the above-mentioned step S1 includes a supporting base, a carrying plate is fixedly connected to the upper surface of the supporting base, a connecting mechanism is arranged in the middle position of the bottom inner wall of the carrying plate, a loading and unloading mechanism, a soaking mechanism, a flushing mechanism and a drying mechanism are sequentially distributed on the bottom inner wall of the carrying plate in a circular array, and an auxiliary mechanism is arranged on the bottom inner wall of the carrying plate.

[0013] A carrying mechanism for loading indium phosphide tailings for processing, wherein the number of the carrying mechanisms is multiple and the carrying mechanisms are arranged in a circular array on a connecting mechanism.

[0014] The loading and unloading mechanism includes a limiting leg fixedly connected to the carrying plate, the interior of the limiting leg is fixedly connected to an upper and lower material box, the upper and lower material box is provided with a secondary drying part for secondary drying, and the bottom end of the upper and lower material box is fixedly connected to a material conveying pipe.

[0015] The soaking mechanism comprises a mounting leg fixedly connected to the carrying plate, a soaking box is fixedly connected inside the mounting leg, and a water inlet and outlet kit is fixedly arranged on the outer circumferential surface of the soaking box.

[0016] The flushing mechanism comprises a fixed leg fixedly connected to the carrying plate, a flushing shell is fixedly connected inside the fixed leg, and a flushing member for flushing the indium phosphide tailings with deionized water is arranged on the flushing shell.

[0017] The drying mechanism includes a support leg fixedly connected to the carrier plate, a drying shell fixedly connected inside the support leg, a drying element for drying the indium phosphide tailings is arranged on the drying shell, and the structure of the secondary drying element is the same as that of the drying element.

[0018] According to an embodiment of the present invention, the flushing component includes a series ring fixedly connected to the outer circumferential surface of the flushing shell, a plurality of spray plates are fixedly connected to the inner circumferential surface of the flushing shell, a water pipe is fixedly connected to the outer circumferential surface of the series ring, a pumping unit is provided on the support base, one end of the water pipe away from the series ring is connected through the water outlet of the pumping unit, a plurality of connecting pipes are fixedly connected to the inner circumferential surface of the series ring, and the plurality of connecting pipes correspond one-to-one to the plurality of spray plates and are connected through.

[0019] According to an embodiment of the present invention, the drying element includes a plurality of first connecting rings fixedly connected to the outer circumferential surface of the drying shell, an air pipe is fixedly connected to the outer circumferential surface of the plurality of first connecting rings, a hot air unit is provided on the support base, one end of the air pipe away from the first connecting ring is connected to the air outlet of the hot air unit, and the inner surface of the drying shell is provided with a plurality of air outlet holes corresponding to the first connecting rings.

[0020] According to an embodiment of the present invention, the supporting mechanism includes a stirring member arranged on a connecting mechanism, a supporting bucket is fixedly connected to the stirring member, two electric telescopic rods are fixedly connected to the upper surface of the supporting bucket, the telescopic ends of the electric telescopic rods pass through the bottom end of the supporting bucket and are jointly fixedly connected to a chassis.

[0021] According to an embodiment of the present invention, the stirring member includes a fixed cross brace fixedly connected to the connecting mechanism, the lower surface of the fixed cross brace is fixedly connected to the upper surface of the carrying barrel, the lower surface of the fixed cross brace is rotatably connected to a rotating shaft, the rotating shaft is coaxial with the carrying barrel, the outer surface of the rotating shaft is fixedly connected to a plurality of groups of up and down distributed toggle plates, the bottom end of the rotating shaft is slidably connected to the chassis, a plurality of mounting grooves arranged in a circular array are provided at the bottom end of the circumferential surface of the rotating shaft, the interior of the mounting groove is fixedly connected to upper and lower limit slide bars, the plurality of limit slide bars are elastically slidably connected to a cleaning plate, and the cleaning plate is slidably connected to the mounting groove.

[0022] According to an embodiment of the present invention, the connecting mechanism includes a support platform fixedly connected to the inner wall of the bottom end of the support base, a hydraulic telescopic rod is rotatably connected to the center position of the upper surface of the support platform, a cross connecting plate is fixedly connected to the top of the hydraulic telescopic rod, and a transmission kit is provided on the upper surface of the support platform, and two transmission parts are provided on the transmission kit, and the two transmission parts are respectively located at the bottom ends of the washing shell and the drying shell.

[0023] According to an embodiment of the present invention, the transmission part at the bottom end of the flushing shell includes a connecting cross brace fixedly connected to the inner circumferential surface of the flushing shell, the lower surface of the connecting cross brace is slidably connected with the connecting cross brace, the lower surface of the connecting cross brace and located on one side of the auxiliary wheel is rotatably connected with a driving wheel, the driving wheel and the transmission kit are driven by a belt, the lower surface of the auxiliary wheel is rotatably connected with a connecting ear plate, the end of the connecting ear plate away from the center of the flushing shell is elastically slidably connected to two connecting slide rods, the ends of the two connecting slide rods away from the connecting ear plates are jointly fixedly connected to a limiting baffle, and the limiting baffle is fixedly connected to the lower surface of the flushing shell.

[0024] According to an embodiment of the present invention, the auxiliary mechanism includes a plurality of telescopic connecting rods distributed in a circular array and fixedly connected to the bottom end of the inner surface of the support base, the top ends of the plurality of telescopic connecting rods are commonly fixedly connected to a fixing ring, and the interior of the fixing ring is slidably connected to a sliding ring.

[0025] According to an embodiment of the present invention, the lower surface of the cleaning plate is slidably matched with the upper surface of the chassis, and the lower surface of the cleaning plate and the upper surface of the chassis are always kept in contact.

[0026] The technical solution of the present invention is as follows: 1. Through the circumferential arrangement of the loading and unloading mechanism, the immersion mechanism, the flushing mechanism and the drying mechanism, multiple processing steps are gradually cycled, so that multiple processing steps of the indium phosphide tail material are carried out continuously, thereby improving the preparation efficiency of indium phosphide polycrystals and reducing the length of time for connecting multiple processing steps.

[0027] 2. By setting the carrying mechanism, the indium phosphide tailings can be continuously turned over inside the carrying barrel when the indium phosphide tailings are rinsed with deionized water and dried, so that the indium phosphide tailings can be fully in contact with deionized water or hot air, thereby improving the overall efficiency of the indium phosphide tailings treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 The present invention is a flow chart of a method for preparing indium phosphide polycrystal.

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of a cleaning and drying device involved in the method for preparing indium phosphide polycrystal provided by the present invention.

[0031] Figure 3It is a three-dimensional structural schematic diagram of the connecting mechanism provided by the present invention.

[0032] Figure 4 The present invention provides Figure 3 Enlarged view of part A.

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the loading and unloading mechanism provided by the present invention.

[0034] Figure 6 It is a three-dimensional structural schematic diagram of the auxiliary mechanism and the immersion mechanism provided by the present invention.

[0035] Figure 7 It is a three-dimensional structural schematic diagram of the flushing mechanism provided by the present invention.

[0036] Figure 8 It is a three-dimensional structural schematic diagram of the drying mechanism provided by the present invention.

[0037] Fig. 9 It is a three-dimensional structural schematic diagram of the bearing mechanism provided by the present invention.

[0038] Fig.10 The present invention provides Fig. 9 Enlarged view of part B.

[0039] Reference numerals:

[0040] 1. Carrying plate; 2. Drying mechanism; 3. Auxiliary mechanism; 4. Flushing mechanism; 5. Connecting mechanism; 6. Soaking mechanism; 7. Loading and unloading mechanism; 8. Support base; 9. Carrying mechanism; 21. Drying shell; 22. Drying parts; 23. Support legs; 31. Sliding ring; 32. Fixed ring; 33. Telescopic connecting rod; 41. Fixed legs; 42. Flushing parts; 43. Flushing shell; 51. Cross connecting plate; 52. Hydraulic telescopic rod; 53. Support table; 54. Transmission parts; 55. Transmission kit; 61. Water up and down kit; 62. Soaking box; 63. Mounting legs; 71. Loading and unloading box; 7 2. Secondary drying parts; 73. Feed pipe; 74. Limiting legs; 91. Agitating parts; 92. Carrying barrel; 93. Chassis; 94. Electric telescopic rod; 221. Jet hole; 222. First connecting ring; 223. Air pipe; 421. Series ring; 422. Spray plate; 423. Water pipe; 541. Driving wheel; 542. Auxiliary wheel; 543. Connecting cross brace; 544. Limit baffle; 545. Connecting slide bar; 546. Connecting ear plate; 911. Fixed cross brace; 912. Rotating shaft; 913. Toggle plate; 914. Mounting groove; 915. Limiting slide bar; 916. Cleaning plate. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0042] like Figure 1 and Figure 2 As shown, a method for preparing indium phosphide polycrystal specifically comprises the following steps:

[0043] S1. Cleaning and drying of indium phosphide tailings: The granular indium phosphide tailings are sequentially soaked in cleaning agent, ultrasonically cleaned, rinsed with deionized water, dehydrated with ethanol and dried using cleaning and drying equipment.

[0044] S2. Crushing and fine grinding of indium phosphide tailings: crush and fine grind the dried granular indium phosphide tailings to ensure the uniformity and stability of the particles.

[0045] S3. Filling and sealing the tube: The crushed and finely ground granular indium phosphide tailings and excess red phosphorus are respectively filled into both ends of the quartz tube and vacuum-sealed. Then, the quartz tube is placed in a heater and the heater is placed in a pressure vessel.

[0046] S4. Heating and heat preservation reaction: heat one end of the quartz tube filled with red phosphorus to 570 degrees Celsius, so that the pressure in the quartz tube reaches the dissociation pressure of indium phosphide, and then heat the other end of the quartz tube filled with granular indium phosphide tailings to 1180 degrees Celsius to completely melt the granular indium phosphide tailings and keep them warm, so that the indium-rich in the indium phosphide tailings can fully contact and react with the red phosphorus.

[0047] S5, cooling and taking out: after the contact reaction is completed, the temperature is lowered and the prepared indium phosphide polycrystalline material is taken out.

[0048] The washing and drying equipment involved in the above-mentioned step S1 includes a supporting base 8, a carrying plate 1 is fixedly connected to the upper surface of the supporting base 8, a connecting mechanism 5 is arranged in the middle position of the bottom inner wall of the carrying plate 1, and a loading and unloading mechanism 7, a soaking mechanism 6, a flushing mechanism 4 and a drying mechanism 2 are distributed in a circular array on the bottom inner wall of the carrying plate 1, and an auxiliary mechanism 3 is arranged on the bottom inner wall of the carrying plate 1.

[0049] A carrying mechanism 9 for loading indium phosphide tailings for processing, wherein the number of the carrying mechanisms 9 is plural and the carrying mechanisms 9 are arranged on the connecting mechanism 5 in a circular array.

[0050] like Figure 3As shown, the connecting mechanism 5 includes a support platform 53 fixedly connected to the inner wall of the bottom end of the support base 8, a hydraulic telescopic rod 52 is rotatably connected to the center position of the upper surface of the support platform 53, and a cross connecting plate 51 is fixedly connected to the top of the hydraulic telescopic rod 52. A transmission kit 55 is arranged on the upper surface of the support platform 53, and two transmission members 54 are arranged on the transmission kit 55. The two transmission members 54 are respectively located at the bottom ends of the washing shell 43 and the drying shell 21. The first external drive motor drives the transmission kit 55 to rotate on the support platform 53, and the second external drive motor drives the hydraulic telescopic rod 52 to rotate on the support platform 53.

[0051] like Figure 5 As shown, the loading and unloading mechanism 7 includes a limiting leg 74 fixedly connected to the carrying plate 1, and the interior of the limiting leg 74 is fixedly connected to an upper and lower material box 71, and the upper and lower material box 71 is provided with a secondary drying part 72 for secondary drying, and the bottom end of the upper and lower material box 71 is fixedly connected to a material conveying pipe 73.

[0052] like Fig. 9 As shown, the supporting mechanism 9 includes a stirring member 91 fixedly connected to the cross connecting plate 51, a supporting barrel 92 is fixedly connected to the stirring member 91, and two electric telescopic rods 94 are fixedly connected to the upper surface of the supporting barrel 92. The telescopic ends of the electric telescopic rods 94 extend through the bottom end of the supporting barrel 92 and are fixedly connected to a chassis 93.

[0053] During specific use, the indium phosphide tailings that need to be processed are first delivered to the inside of the carrying barrel 92 located inside the upper and lower material boxes 71 through external delivery equipment. When the indium phosphide tailings are delivered, the hydraulic telescopic rod 52 is extended to lift the carrying barrel 92 upward inside the secondary drying part 72. At this time, the second external drive motor drives the hydraulic telescopic rod 52 to rotate ninety degrees counterclockwise on the support platform 53, and moves the carrying barrel 92 to the top of the immersion mechanism 6 to perform the cleaning agent immersion step.

[0054] like Figure 6 As shown, the immersion mechanism 6 includes a mounting leg 63 fixedly connected to the carrier plate 1, the interior of the mounting leg 63 is fixedly connected to a immersion box 62, and the outer circumferential surface of the immersion box 62 is fixedly provided with a water inlet and outlet kit 61, and the water inlet and outlet kit 61 is provided with a water inlet pipe and a water outlet pipe.

[0055] During specific use, when the hydraulic telescopic rod 52 rotates counterclockwise ninety degrees to move the carrying barrel 92 to the top of the immersion mechanism 6, the carrying barrel 92 is coaxial with the immersion box 62, and then the hydraulic telescopic rod 52 is contracted to push the carrying barrel 92 to the inside of the immersion box 62. At this time, the cleaning agent is delivered to the immersion box 62 through the water inlet pipe of the upper and lower water kit 61, and the indium phosphide tail material inside the carrying barrel 92 is soaked in the cleaning agent. When the soaking is completed, repeat the previous steps to move the carrying barrel 92 to the top of the flushing mechanism 4, perform the deionized water flushing step, and then discharge the used cleaning agent through the water outlet pipe of the upper and lower water kit 61.

[0056] like Figure 7 As shown, the flushing mechanism 4 includes a fixed leg 41 fixedly connected to the carrier plate 1, a flushing shell 43 is fixedly connected inside the fixed leg 41, and a flushing member 42 for flushing the indium phosphide tailings with deionized water is provided on the flushing shell 43.

[0057] like Figure 6 As shown, the flushing component 42 includes a series ring 421 fixedly connected to the outer circumferential surface of the flushing shell 43, a plurality of spray plates 422 are fixedly connected to the inner circumferential surface of the flushing shell 43, a water pipe 423 is fixedly connected to the outer circumferential surface of the series ring 421, a pumping unit is provided on the support base 8, one end of the water pipe 423 away from the series ring 421 is connected through the water outlet of the pumping unit, a plurality of connecting pipes are fixedly connected to the inner circumferential surface of the series ring 421, and the plurality of connecting pipes correspond one by one to the plurality of spray plates 422 and are connected through.

[0058] like Fig. 9 and Fig.10 As shown, the stirring member 91 includes a fixed cross brace 911 fixedly connected to the connecting mechanism 5, the lower surface of the fixed cross brace 911 is fixedly connected to the upper surface of the carrying barrel 92, the lower surface of the fixed cross brace 911 is rotatably connected with a rotating shaft 912, the rotating shaft 912 is coaxial with the carrying barrel 92, the outer surface of the rotating shaft 912 is fixedly connected with a plurality of groups of toggle plates 913 distributed up and down, the bottom end of the rotating shaft 912 is slidably connected to the chassis 93, a plurality of mounting grooves 914 arranged in a circumferential array are provided at the bottom end of the circumferential surface of the rotating shaft 912, the interior of the mounting groove 914 is fixedly connected with a limiting slide bar 915 arranged up and down, a cleaning plate 916 is elastically slidably connected to the plurality of limiting slide bars 915, the cleaning plate 916 is slidably connected to the mounting groove 914, the lower surface of the cleaning plate 916 is slidably matched with the upper surface of the chassis 93, and the lower surface of the cleaning plate 916 is always kept in contact with the upper surface of the chassis 93.

[0059] like Figure 8As shown, the auxiliary mechanism 3 includes a plurality of telescopic connecting rods 33 fixedly connected to the bottom end of the inner surface of the support base 8 and distributed in a circular array, the top ends of the plurality of telescopic connecting rods 33 are commonly fixedly connected to a fixing ring 32, and the interior of the fixing ring 32 is slidably connected to a sliding ring 31.

[0060] During specific use, after the carrying barrel 92 moves to the top of the flushing mechanism 4, after the carrying barrel 92 is pulled out from the inside of the upper and lower water kits 61, the cleaning agent brought out falls into the inside of the support base 8, and when the carrying barrel 92 is sent into the inside of the flushing shell 43, the bottom end of the rotating shaft 912 contacts the transmission member 54, and the rotating shaft 912 is driven by the transmission member 54 to rotate inside the carrying barrel 92. At this time, the toggle plate 913 turns over the indium phosphide tailings inside the carrying barrel 92 as the rotating shaft 912 rotates, so that the indium phosphide tailings can fully contact with deionized water, and cooperate with the pumping unit to transport the deionized water to the inside of the flushing part 42 through the water pipe 423. The flushing part 42 sprays the deionized water on the indium phosphide tailings inside the flushing part 42 through the spray plate 422, so that the cleaning agent adhering to the indium phosphide tailings can be removed more thoroughly.

[0061] During the flushing process, the deionized water also falls into the inside of the support base 8, and is collected and transported to the outside through the support base 8 together with the cleaning agent brought out. When the flushing work is completed, repeat the previous steps to move the supporting barrel 92 to the top of the drying mechanism 2 to perform the drying step. In the process of rotation of the supporting barrel 92, the fixed cross brace 911 drives the sliding ring 31 to rotate on the fixed ring 32, which can ensure that the supporting barrel 92 is more stable during the rotation process. At the same time, the telescopic connecting rod 33 can be retracted to ensure that the supporting barrel 92 can move up and down without hindrance.

[0062] like Figure 4 As shown, the transmission member 54 at the bottom end of the flushing shell 43 includes a connecting cross brace 543 fixedly connected to the inner circumferential surface of the flushing shell 43, the lower surface of the connecting cross brace 543 is slidably connected with the connecting cross brace 543, the lower surface of the connecting cross brace 543 and located on one side of the auxiliary wheel 542 is rotatably connected with a driving wheel 541, the driving wheel 541 and the transmission kit 55 are driven by a belt, the lower surface of the auxiliary wheel 542 is rotatably connected with a connecting ear plate 546, the end of the connecting ear plate 546 away from the center of the flushing shell 43 is elastically slidably connected to two connecting slide rods 545, the ends of the two connecting slide rods 545 away from the connecting ear plate 546 are jointly fixedly connected to a limit baffle 544, and the limit baffle 544 is fixedly connected to the lower surface of the flushing shell 43.

[0063] During specific use, when the transmission member 54 drives the rotating shaft 912 to rotate inside the carrying barrel 92, the first external drive motor drives the transmission kit 55 to rotate on the support platform 53, and the support platform 53 drives the driving wheel 541 to rotate on the connecting cross brace 543, and when the rotating shaft 912 moves downward, the rotating shaft 912 pushes the auxiliary wheel 542 to slide on the connecting cross brace 543 in the direction away from the driving wheel 541. Since the connecting slide rod 545 and the connecting ear plate 546 are elastically slidingly connected, when the rotating shaft 912 enters between the auxiliary wheel 542 and the driving wheel 541, under the action of elastic force, the auxiliary wheel 542 generates a thrust on the rotating shaft 912. At this time, the driving wheel 541 rotates to cooperate with the auxiliary wheel 542 to drive the rotating shaft 912 to rotate synchronously.

[0064] like Figure 8 As shown, the drying mechanism 2 includes a supporting leg 23 fixedly connected to the carrying plate 1, and a drying shell 21 is fixedly connected inside the supporting leg 23. The drying shell 21 is provided with a drying element 22 for drying the indium phosphide tailings, and the structure of the secondary drying element 72 is the same as that of the drying element 22.

[0065] like Figure 8 As shown, the drying element 22 includes a plurality of first connecting rings 222 fixedly connected to the outer circumferential surface of the drying shell 21, and an air pipe 223 is fixedly connected to the outer circumferential surface of the plurality of first connecting rings 222. A hot air unit is arranged on the support base 8, and one end of the air pipe 223 away from the first connecting ring 222 is connected to the air outlet of the hot air unit. The inner surface of the drying shell 21 is provided with a plurality of air outlet holes corresponding to the first connecting rings 222.

[0066] During specific use, when the carrying barrel 92 moves to the top of the drying mechanism 2, the carrying barrel 92 is coaxial with the drying shell 21. After the carrying barrel 92 enters the interior of the drying shell 21, the hot air generated by the hot air unit is transported to the interior of the first connecting ring 222 through the air pipe 223. The first connecting ring 222 then sprays the hot air evenly at various positions inside the drying shell 21 through the jet holes 221 on the drying shell 21, so as to dry the indium phosphide tailings inside the carrying barrel 92. At the same time, the driving wheel 541 at the bottom end of the drying shell 21 drives the rotating shaft 912 to rotate inside the carrying barrel 92 in the same way as above, and turns over the indium phosphide tailings inside the carrying barrel 92, so that the indium phosphide tailings can fully contact with the hot air, thereby improving the drying efficiency of the indium phosphide tailings.

[0067] After the drying step is completed, indium phosphide tailings are obtained, and the carrying barrel 92 containing the indium phosphide tailings is re-sent into the interior of the upper and lower material boxes 71, and then the electric telescopic rod 94 is extended to push the bottom end of the chassis 93 and the carrying barrel 92 to separate, and then the external auxiliary driving device drives the rotating shaft 912 to rotate. Since the cleaning plate 916 is elastically slidably connected with the limiting sliding rod 915, when the chassis 93 moves downward, the cleaning plate 916 will always be in contact with the upper surface of the chassis 93. As the chassis 93 is separated from the carrying barrel 92, the cleaning plate 916 will always be in contact with the upper surface of the chassis 93. The cleaning plate 916 is rotated to transport the indium phosphide tailings in the carrying barrel 92 to the interior of the upper and lower material boxes 71 and to the outside through the conveying pipe 73, and the hot air generated by the hot air unit is simultaneously transported to the interior of the upper and lower material boxes 71 through the secondary drying component 72, so as to perform secondary drying on the indium phosphide tailings in the upper and lower material boxes 71 to ensure that the indium phosphide tailings are thoroughly dried. When all the indium phosphide tailings fall from the interior of the carrying barrel 92, the chassis 93 is restored to its original position, and the above steps are repeated to prepare the next indium phosphide tailings.

[0068] Working principle: During specific use, the indium phosphide tailings are first delivered to the inside of the carrying barrel 92 located inside the upper and lower material boxes 71 through an external delivery device. When the indium phosphide tailings are delivered, the carrying barrel 92 is pulled out from the inside of the upper and lower material boxes 71 by extending the hydraulic telescopic rod 52, and then the hydraulic telescopic rod 52 is driven by the second external drive motor to rotate ninety degrees counterclockwise. At this time, the carrying barrel 92 containing the indium phosphide tailings is moved to the top of the immersion box 62. At this time, the hydraulic telescopic rod 52 is contracted to move the carrying barrel 92 to the inside of the immersion box 62, and the cleaning agent is started to be soaked in the immersion box 62. When the soaking is completed, the above steps are repeated to move the carrying barrel 92 to the inside of the rinsing shell 43 and the drying shell 21 respectively, and perform deionized water rinsing and drying.

[0069] Finally, the carrying barrel 92 is moved back to the interior of the upper and lower material boxes 71, and the chassis 93 is pushed downward by extending the electric telescopic rod 94, so that the indium phosphide tailings in the carrying barrel 92 fall into the interior of the upper and lower material boxes 71 and are transported out through the conveying pipe 73. When all the indium phosphide tailings in the carrying barrel 92 are output, the electric telescopic rod 94 contracts to re-attach the chassis 93 to the bottom of the carrying barrel 92, and then the above steps are repeated to process the new indium phosphide tailings. It should be noted that after the carrying barrel 92 in the upper and lower material boxes 71 is loaded with indium phosphide tailings and enters the interior of the immersion box 62, the interior of the upper and lower material boxes 71 will immediately have the next empty carrying barrel 92 enter, and this cycle will be repeated. Each processing step is a continuous processing work.

[0070] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0071] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing indium phosphide polycrystal, characterized in that: The specific steps include: S1. Cleaning and drying of indium phosphide tailings: The granular indium phosphide tailings are sequentially soaked in a cleaning agent, ultrasonically cleaned, rinsed with deionized water, dehydrated with ethanol, and dried by a cleaning and drying device; S2. Crushing and fine grinding of indium phosphide tailings: crushing and fine grinding of the dried granular indium phosphide tailings to ensure the uniformity and stability of the particles; S3, filling and sealing the tube: respectively filling the crushed and finely ground granular indium phosphide tailings and excess red phosphorus into both ends of the quartz tube and performing vacuum sealing operations, then placing the quartz tube into a heater and placing the heater into a pressure vessel; S4, heating and heat preservation reaction: heating one end of the quartz tube filled with red phosphorus to 570 degrees Celsius, so that the pressure in the quartz tube reaches the dissociation pressure of indium phosphide, and then heating the other end of the quartz tube filled with granular indium phosphide tailings to 1180 degrees Celsius, so that the granular indium phosphide tailings are completely melted and heat-insulated, so that the indium-rich in the indium phosphide tailings can fully contact and react with the red phosphorus; S5, cooling and taking out: after the contact reaction is completed, cooling treatment is performed, and the prepared indium phosphide polycrystalline material is taken out; The cleaning and drying equipment involved in the above step S1 comprises a supporting base, a carrying plate is fixedly connected to the upper surface of the supporting base, a connecting mechanism is arranged at the middle position of the inner wall of the bottom end of the carrying plate, a loading and unloading mechanism, a soaking mechanism, a rinsing mechanism and a drying mechanism are sequentially arranged on the inner wall of the bottom end of the carrying plate in a circular array, and an auxiliary mechanism is arranged on the inner wall of the bottom end of the carrying plate; A carrying mechanism for loading indium phosphide tailings for processing, wherein the number of the carrying mechanisms is multiple and they are arranged in a circular array on the connecting mechanism; The bearing mechanism includes a stirring member arranged on the connecting mechanism, the stirring member is fixedly connected to a bearing bucket, the upper surface of the bearing bucket is fixedly connected to two electric telescopic rods, the telescopic ends of the electric telescopic rods penetrate to the bottom end of the bearing bucket and are fixedly connected to a chassis; The stirring member comprises a fixed cross brace fixedly connected to the connecting mechanism, the lower surface of the fixed cross brace is fixedly connected to the upper surface of the carrying bucket, the lower surface of the fixed cross brace is rotatably connected to a rotating shaft, and the rotating shaft is coaxial with the carrying bucket; The connection mechanism includes a support platform fixedly connected to the inner wall of the bottom end of the support base, a hydraulic telescopic rod is rotatably connected to the center position of the upper surface of the support platform, a cross connecting plate is fixedly connected to the top of the hydraulic telescopic rod, and a transmission kit is arranged on the upper surface of the support platform, and two transmission members are arranged on the transmission kit, and the two transmission members are respectively located at the bottom ends of the washing shell and the drying shell; The transmission part at the bottom end of the flushing shell includes a connecting cross brace fixedly connected to the inner circumferential surface of the flushing shell, a driving wheel is rotatably connected to the lower surface of the connecting cross brace and is located on one side of the auxiliary wheel, the driving wheel and the transmission kit are driven by a belt, and a connecting ear plate is rotatably connected to the lower surface of the auxiliary wheel, and two connecting slide rods are elastically slidably connected to one end of the connecting ear plate away from the center of the flushing shell, and the ends of the two connecting slide rods away from the connecting ear plate are jointly fixedly connected to a limit baffle, and the limit baffle is fixedly connected to the lower surface of the flushing shell.

2. The method for preparing indium phosphide polycrystal according to claim 1, characterized in that: The flushing mechanism comprises a fixed leg fixedly connected to the carrying plate, a flushing shell is fixedly connected inside the fixed leg, and a flushing part for flushing the indium phosphide tailings with deionized water is arranged on the flushing shell.

3. The method for preparing an indium phosphide polycrystal according to claim 2, characterized in that: The flushing part includes a series ring fixedly connected to the outer circumferential surface of the flushing shell, a plurality of spray plates are fixedly connected to the inner circumferential surface of the flushing shell, a water pipe is fixedly connected to the outer circumferential surface of the series ring, a pumping unit is arranged on the supporting base, one end of the water pipe away from the series ring is connected through the water outlet of the pumping unit, a plurality of connecting pipes are fixedly connected to the inner circumferential surface of the series ring, and the plurality of connecting pipes correspond to the plurality of spray plates one by one and are connected through.

4. The method for preparing indium phosphide polycrystal according to claim 1, characterized in that: The loading and unloading mechanism includes a limiting leg fixedly connected to the carrying plate, the interior of the limiting leg is fixedly connected to an upper and lower material box, the upper and lower material boxes are provided with secondary drying parts for secondary drying, and the bottom ends of the upper and lower material boxes are fixedly connected to a material conveying pipe.

5. The method for preparing indium phosphide polycrystal according to claim 4, characterized in that: The drying mechanism includes a support leg fixedly connected to the carrier plate, a drying shell fixedly connected inside the support leg, a drying element for drying the indium phosphide tailings is arranged on the drying shell, and the structure of the secondary drying element is the same as that of the drying element.

6. The method for preparing indium phosphide polycrystal according to claim 5, characterized in that: The drying element includes a plurality of first connecting rings fixedly connected to the outer circumferential surface of the drying shell, and an air pipe is fixedly connected to the outer circumferential surface of the plurality of first connecting rings. A hot air unit is arranged on the support base, and one end of the air pipe away from the first connecting ring is connected to the air outlet of the hot air unit through and through, and a plurality of air outlet holes corresponding to the first connecting rings are provided on the inner surface of the drying shell.

7. The method for preparing indium phosphide polycrystal according to claim 1, characterized in that: The soaking mechanism comprises a mounting leg fixedly connected to the carrying plate, a soaking box is fixedly connected inside the mounting leg, and a water inlet and outlet kit is fixedly arranged on the outer circumferential surface of the soaking box.

8. The method for preparing indium phosphide polycrystal according to claim 1, characterized in that: The auxiliary mechanism includes a plurality of telescopic connecting rods fixedly connected to the bottom end of the inner surface of the support base and distributed in a circumferential array, the top ends of the plurality of telescopic connecting rods are commonly fixedly connected to a fixing ring, and the interior of the fixing ring is slidably connected to a sliding ring.

9. The method for preparing indium phosphide polycrystal according to claim 1, characterized in that: The outer surface of the rotating shaft is fixedly connected to a plurality of groups of toggle plates distributed up and down, the bottom end of the rotating shaft is slidably connected to the chassis, the bottom end of the circumferential surface of the rotating shaft is provided with a plurality of mounting grooves arranged in a circumferential array, the interior of the mounting groove is fixedly connected to upper and lower limit sliding rods, the plurality of limit sliding rods are elastically slidably connected to a cleaning plate, and the cleaning plate is slidably connected to the mounting groove.

10. The method for preparing indium phosphide polycrystal according to claim 9, characterized in that: The lower surface of the cleaning plate is slidably matched with the upper surface of the chassis, and the lower surface of the cleaning plate and the upper surface of the chassis are always kept in contact.

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