High-purity quartz sand jet milling and ultra-fine refining equipment

Abstract

The invention discloses high-purity quartz sand airflow crushing and ultra-fine refining equipment, and relates to the technical field of quartz sand refinement, the high-purity quartz sand airflow crushing and ultra-fine refining equipment comprises a mounting bottom plate, a controller is arranged at the top of the mounting bottom plate, and feeding equipment used for conveying quartz sand is arranged at the position, close to the center, of the top of the mounting bottom plate. According to the high-purity quartz sand airflow crushing and ultra-fine refining equipment, when high-purity quartz sand needs to be subjected to fine crushing, firstly, materials are conveyed into a primary crushing bin, the quartz sand is subjected to ultra-fine crushing through a plurality of first high-pressure nozzles, and when a laser particle size analyzer detects that the granularity of the crushed materials is large, the materials are conveyed into a secondary crushing bin through a plurality of second high-pressure nozzles; and a plurality of second high-pressure nozzles are moved upwards to the positions flush with the outer surfaces of a plurality of first high-pressure nozzles, the material crushing angle and strength are increased, and the problems that in the prior art, in the process that crushing equipment crushes high-purity quartz sand, the spraying angle and the coverage range of high-pressure airflow are relatively single, and the crushing efficiency is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand refinement, in particular to high-purity quartz sand airflow pulverization ultrafine refinement equipment. Background Art

[0002] High-purity quartz sand airflow grinding and refinement jet mill is a device used to grind high-purity quartz sand to a certain fineness. It mainly realizes the grinding function based on the interaction between airflow power and material particles. It is widely used in the fields of semiconductor and photovoltaic which have extremely high requirements for the purity and particle size of quartz sand. It grinds high-purity quartz sand to very fine particle size, generally reaching micron level or even finer. Some equipment can achieve a grinding particle size range D50 of 1-25 microns, meeting the stringent requirements of high-end industries such as semiconductors for quartz sand particle size.

[0003] Currently, in the process of crushing high-purity quartz sand using crushing equipment, the quartz sand is mainly crushed by the impact of high-pressure gas in the crushing chamber, which causes the quartz sand to collide and rub against each other. However, the number of high-pressure airflow nozzles in most existing crushing chambers is unchanged, and the high-pressure nozzles are all fixedly installed in the crushing chamber. The injection angle and coverage range of the high-pressure airflow are relatively single. As quartz sand is a material with relatively high hardness, ultra-fine processing requires sufficient impact energy and shear force. Since the nozzles are all fixedly installed, the high-speed flow field formed by the airflow in the crushing chamber has a limited coverage range, and the number of nozzles cannot be adjusted according to the needs of the material, so that the material cannot be fully exposed to the high-pressure airflow, resulting in low crushing efficiency.

[0004] Therefore, we proposed a high-purity quartz sand airflow crushing and ultra-fine equipment to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-purity quartz sand airflow crushing and ultra-fine processing equipment to solve the problem that the injection angle and coverage range of the high-pressure airflow in the process of crushing high-purity quartz sand by the crushing equipment proposed in the above background technology are relatively low in crushing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-purity quartz sand airflow crushing and ultrafine processing equipment, comprising a mounting base, a controller is arranged on the top of the mounting base, a feeding device for conveying quartz sand is arranged near the center of the top of the mounting base, a high-pressure gas tank for storing high-pressure gas is arranged near one side edge of the top of the mounting base, a graded crushing component for crushing quartz sand is arranged on the top of the mounting base, a secondary ultrafine processing component for finely crushing quartz sand is arranged on the top of the graded crushing component, the graded crushing component includes a primary crushing bin, the primary crushing bin A laser particle size analyzer is set on the inner wall, and a plurality of first high-pressure nozzles for spraying high-pressure gas are set near the top of the inner wall of the primary crushing bin, and a plurality of second high-pressure nozzles are set near the bottom inside the primary crushing bin. One end of each of the plurality of second high-pressure nozzles is coupled to a first telescopic hose, and a lifting rod is fixedly installed on the outer surface of each of the plurality of second high-pressure nozzles. After the quartz sand enters the primary crushing bin, it is first crushed by the high-pressure gas sprayed from the first high-pressure nozzle. When the laser particle size analyzer detects that the refined particle size of the quartz sand is insufficient, a plurality of second high-pressure nozzles can be added to crush the quartz sand at the same time.

[0007] Preferably, the graded crushing assembly further comprises a support frame, an upper connecting pipe is fixedly mounted on the outer surface of the primary crushing bin near the center by screws, a lower connecting pipe is fixedly mounted on the outer surface of the primary crushing bin near the bottom by screws, a plurality of fixed drainage pipes are fixedly connected to the outer surface of the lower connecting pipe, and a plurality of slide grooves are provided on the inner wall of the primary crushing bin.

[0008] Preferably, a support ring is fixedly installed on the inner wall of the primary crushing chamber near the bottom, a plurality of vertical hollow tubes are fixedly installed on the top of the support ring, a sliding rod is fixedly installed on the bottom ends of the plurality of lifting rods, a lifting ring is slidably connected between the outer surfaces of the plurality of vertical hollow tubes, and an electric telescopic rod is set by a screw near the center of the top of the support ring.

[0009] Preferably, the bottom of the support frame is fixedly connected to the top of the mounting base plate, the top of the support frame is fixedly connected to the outer surface of the primary crushing bin, one end of each of the first high-pressure nozzles is fixedly connected to the interior of the upper connecting pipe, and one end of each of the fixed drainage pipes is fixedly passed through the interior of the primary crushing bin.

[0010] Preferably, one end of the plurality of lifting rods are movable and pass through the outside of the plurality of vertical hollow tubes, the two ends of the plurality of sliding rods are movable and pass through the outside of the plurality of vertical hollow tubes, the bottoms of the plurality of sliding rods are fixedly connected to the top of the lifting ring, the outer surfaces of the plurality of second high-pressure nozzles slide with the inner walls of the plurality of slide grooves through auxiliary rods, one end of the plurality of first telescopic hoses are respectively connected with one end of the plurality of fixed drainage tubes, and the top of the electric telescopic rod is fixedly connected to the inner wall of the lifting ring.

[0011] Preferably, the secondary ultrafine processing component includes a fine crushing bin, the bottom end of the fine crushing bin is fixedly connected to the top end of the primary crushing bin, a connecting pipe is fixedly installed on the outer surface of the fine crushing bin by screws, and the outer surface of the connecting pipe is fixedly connected to multiple output pipes, and one end of the multiple output pipes is movable through the interior of the fine crushing bin.

[0012] Preferably, one end of each of the output pipes is fixedly connected to a second telescopic hose by a screw, and a hollow ring is fixedly connected between one ends of the plurality of second telescopic hoses. A plurality of third high-pressure nozzles are provided on the outer surface of the hollow ring, and the outer surface of the hollow ring is rotatably connected to the inner wall of the fine crushing bin, and a gear ring is fixed on the outer surface of the hollow ring.

[0013] Preferably, a driving motor is fixedly mounted on the inner wall of the fine crushing bin through an auxiliary plate, the output end of the driving motor is fixedly connected to a driving rod, the bottom end of the driving rod is movably embedded in the interior of the fine crushing bin, and a driving gear is fixedly sleeved on the outer surface of the driving rod, and the outer surface of the driving gear is meshed with the outer surface of the gear ring.

[0014] Preferably, the discharge end of the feeding device is fixedly connected to the interior of the primary crushing bin, and an air pump is provided on the top of the mounting base through an auxiliary frame. The air inlet end of the air pump is fixedly connected to an air inlet pipe, one end of the air inlet pipe is fixedly connected to the interior of the high-pressure gas tank, and the air outlet end of the air pump is fixedly connected to an air outlet pipe.

[0015] Preferably, one end of the air outlet pipe is fixedly passed through the interior of the connecting pipe, the other end of the air outlet pipe is fixedly passed through the interior of the upper connecting pipe, and another end of the air outlet pipe is fixedly passed through the interior of the lower connecting pipe. Three solenoid valves are provided on the outer surface of the air outlet pipe, and the top of the fine crushing bin is fixedly connected to a discharge pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When high-purity quartz sand needs to be finely crushed, the material is first transported to the inside of the primary crushing bin, and the quartz sand is ultra-finely crushed through multiple first high-pressure nozzles. When the laser particle size analyzer detects that the particle size of the crushed material is large, the multiple second high-pressure nozzles are moved upward to a position flush with the outer surfaces of the multiple first high-pressure nozzles, thereby increasing the angle and intensity of the material crushing, and solving the problem of low crushing efficiency due to the relatively single injection angle and coverage of the high-pressure airflow in the process of crushing high-purity quartz sand in the existing crushing equipment.

[0018] 2. When the laser particle size analyzer detects that the material still has not reached the level of ultra-fineness, the solenoid valve corresponding to the connecting pipe is opened, so that the high-pressure gas enters the interior of the connecting pipe through the outlet pipe, and enters the interior of the second telescopic hose through multiple output pipes, and is input into the interior of the hollow ring, and then is sprayed outward through multiple third high-pressure nozzles to crush the material again. Through the second crushing, the unqualified large particles are further refined and crushed, thereby increasing the degree of refinement of the material crushing.

[0019] 3. In order to crush the material in an all-round way and achieve small and uniform crushing particle size, start the drive motor to drive the hollow ring to rotate, drive multiple third high-pressure nozzles to rotate, thereby comprehensively and evenly crushing the quartz sand material, achieving further all-round secondary refinement of the material, thereby reducing the generation of large particles while ensuring the uniformity of material crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective view of a high-purity quartz sand airflow grinding and ultra-fine refinement device according to the present invention;

[0021] Figure 2 This is a three-dimensional diagram of the air pump portion of a high-purity quartz sand airflow grinding and ultra-fine processing equipment of the present invention;

[0022] Figure 3 This is a partial perspective view of the grading and crushing components of a high-purity quartz sand airflow milling and ultra-fine refinement device according to the present invention;

[0023] Figure 4 This is a partially cutaway perspective view of the primary crushing chamber of a high-purity quartz sand airflow milling and ultra-fine refinement device according to the present invention;

[0024] Figure 5 This is a partially cutaway perspective view of the lower connecting pipe of a high-purity quartz sand airflow milling and ultra-fine refinement device according to the present invention;

[0025] Figure 6 This is a partial perspective view of the second high-pressure nozzle of a high-purity quartz sand airflow milling and ultra-fine refinement device of the present invention;

[0026] Figure 7 This is a partially cutaway perspective view of a lifting ring of a high-purity quartz sand airflow milling and ultra-fine refinement device according to the present invention;

[0027] Figure 8 This is a partial cutaway perspective view of a fine crushing chamber of a high-purity quartz sand airflow milling and ultra-fine refinement device according to the present invention;

[0028] Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0029] In the picture:

[0030] 1. Mounting plate; 2. Controller; 3. Feeding equipment; 4. High-pressure gas tank; 5. Air pump; 6. Inlet pipe; 7. Outlet pipe; 8. Secondary ultrafine processing assembly; 801. Fine crushing chamber; 802. Connecting pipe; 803. Output pipe; 804. Second telescopic hose; 805. Hollow ring; 806. Third high-pressure nozzle; 807. Drive motor; 808. Drive rod; 809. Driving gear; 810. Gear ring; 9. Classified crushing assembly; 901. Support Support frame; 902, primary crushing chamber; 903, upper connecting pipe; 904, first high-pressure nozzle; 905, lower connecting pipe; 906, fixed drainage pipe; 907, chute; 908, support ring; 909, vertical hollow tube; 910, lifting rod; 911, sliding rod; 912, second high-pressure nozzle; 913, first telescopic hose; 914, laser particle size analyzer; 915, lifting ring; 916, electric telescopic rod; 10, solenoid valve; 11, discharge pipe. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7The present invention provides a technical solution: a high-purity quartz sand airflow crushing ultrafine equipment, comprising a mounting base 1, a controller 2 is arranged on the top of the mounting base 1, a feeding device 3 for conveying quartz sand is arranged near the center of the top of the mounting base 1, a high-pressure gas tank 4 for storing high-pressure gas is arranged near one side edge of the top of the mounting base 1, a graded crushing component 9 for crushing quartz sand is arranged on the top of the mounting base 1, a secondary ultrafine processing component 8 for finely crushing quartz sand is arranged on the top of the graded crushing component 9, the graded crushing component 9 includes a primary crushing bin 902, a laser particle size analyzer 914 is arranged on the inner wall of the primary crushing bin 902, and a plurality of spray nozzles for spraying high-pressure gas are arranged near the top of the inner wall of the primary crushing bin 902. The first high-pressure nozzle 904 of the body, multiple second high-pressure nozzles 912 are set near the bottom of the primary crushing chamber 902, one end of the multiple second high-pressure nozzles 912 are coupled and connected to the first telescopic hose 913, and the outer surfaces of the multiple second high-pressure nozzles 912 are fixedly installed with a lifting rod 910. After the quartz sand enters the primary crushing chamber 902, it is first crushed by the high-pressure gas ejected from the first high-pressure nozzle 904. When the laser particle size analyzer 914 detects that the fine particle size of the quartz sand is not enough, multiple second high-pressure nozzles 912 can be added to crush the quartz sand at the same time. The graded crushing assembly 9 also includes a support frame 901. The outer surface of the primary crushing chamber 902 is fixed with an upper connecting pipe 903 near the center by screws. , a lower connecting pipe 905 is fixedly installed on the outer surface of the primary crushing bin 902 near the bottom by screws, and a plurality of fixed drainage pipes 906 are fixedly connected to the outer surface of the lower connecting pipe 905, and a plurality of chute 907 are opened on the inner wall of the primary crushing bin 902, and a support ring 908 is fixedly installed on the inner wall of the primary crushing bin 902 near the bottom, and a plurality of vertical hollow tubes 909 are fixedly installed on the top of the support ring 908, and a sliding rod 911 is fixedly installed on the bottom end of the plurality of lifting rods 910, and a lifting ring 915 is slidably connected between the outer surfaces of the plurality of vertical hollow tubes 909, and an electric telescopic rod 916 is set by screws near the center of the top of the support ring 908, and the bottom of the support frame 901 is fixedly connected to the top of the mounting base 1, and the support frame 9 01 is fixedly connected to the outer surface of the primary crushing chamber 902, one end of the multiple first high-pressure nozzles 904 is fixedly connected to the interior of the upper connecting pipe 903, one end of the multiple fixed drainage pipes 906 is fixedly passed through the interior of the primary crushing chamber 902, one end of the multiple lifting rods 910 is respectively movable to pass through the outside of the multiple vertical hollow tubes 909, the two ends of the multiple sliding rods 911 are respectively movable to pass through the outside of the multiple vertical hollow tubes 909, the bottoms of the multiple sliding rods 911 are fixedly connected to the top of the lifting ring 915, the outer surfaces of the multiple second high-pressure nozzles 912 slide with the inner walls of the multiple slide grooves 907 through the auxiliary rods, and one end of the multiple first telescopic hoses 913 is respectively connected to one end of the multiple fixed drainage pipes 906.The top of the electric telescopic rod 916 is fixedly connected to the inner wall of the lifting ring 915.

[0033] In this embodiment, when high-purity quartz sand needs to be finely crushed, the air pump 5 is first started to drive the air inlet pipe 6 to extract high-pressure gas from the interior of the high-pressure gas tank 4. At the same time, the solenoid valve 10 corresponding to the upper connecting pipe 903 is started by the controller 2, so that the high-pressure gas enters the interior of the upper connecting pipe 903 through the air outlet pipe 7 and is ejected outward through multiple first high-pressure nozzles 904. Then, an appropriate amount of high-purity quartz sand of uniform size is put into the feeding device 3, wherein, as shown in FIG. Figure 1 As shown, the feeding device 3 consists of a feeding hopper and a screw conveying device. After the material enters the feeding hopper, it is conveyed to the interior of the primary crushing bin 902 through the screw conveying device. The high-pressure gas ejected outward by multiple first high-pressure nozzles 904 causes violent impact, collision and friction between the materials, thereby achieving ultra-fine crushing of the quartz sand. At the same time, the laser particle size analyzer 914 is used to detect whether the particle size of the crushed material is uniform and fine. Among them, the laser particle size analyzer 914 is based on the scattering phenomenon of light. When the laser beam is irradiated on the particles, scattering occurs. The angle and intensity of the scattered light are related to the size of the particles. By measuring the distribution of scattered light, the particle size distribution of the particles can be calculated, thereby understanding the particle size and uniformity of the quartz sand material. When the laser particle size analyzer 914 detects that the particle size of the crushed material is large, the controller 2 first starts the electric telescopic rod 916 to extend it, driving the lifting ring 915 to move upward, thereby pushing the multiple sliding rods 911 to move upward, and then driving the multiple lifting rods 910 to move upward. The movement of the lifting rods 910 respectively drives the multiple second high-pressure nozzles 912 to move upward, and then the top ends of the multiple first telescopic hoses 913 are pulled and extended. Figure 4 As shown, the plurality of slide grooves 907 respectively support and limit the plurality of second high-pressure nozzles 912, making them more stable during the lifting process. When the plurality of second high-pressure nozzles 912 move upward to be on the same plane as the plurality of first high-pressure nozzles 904, the electric telescopic rod 916 can be closed. Figure 4As shown, each second high-pressure nozzle 912 is respectively arranged between the outer surfaces of the two first high-pressure nozzles 904, and the distance between the second high-pressure nozzle 912 and the first high-pressure nozzles 904 on both sides is the same. The purpose is to make the subsequent high-pressure gas injection more uniform. Then, the solenoid valve 10 corresponding to the lower connecting pipe 905 can be opened by the controller 2, and the delivery intensity of the high-pressure gas per unit time of the air pump 5 can be increased, so that the high-pressure gas enters the interior of the lower connecting pipe 905, and enters the interior of the second high-pressure nozzle 912 through the multiple fixed drainage pipes 906 and the multiple first telescopic hoses 913 respectively. It is then ejected through the multiple second high-pressure nozzles 912 to crush the quartz sand material. The multiple second high-pressure nozzles 912 and the first high-pressure nozzles 904 increase the angle and intensity of the material crushing, thereby increasing the crushing range of the high-pressure gas, so that the high-purity quartz sand is finely crushed more uniformly and the material is crushed finer. The function of the graded crushing assembly 9 solves the problem of low efficiency of the injection angle and coverage of the high-pressure airflow in the crushing process of high-purity quartz sand in the prior art pulverizing equipment compared with a single crushing method.

[0034] like Figures 1-9As shown, the secondary ultrafine processing component 8 includes a fine crushing bin 801, the bottom end of the fine crushing bin 801 is fixedly connected to the top of the primary crushing bin 902, the outer surface of the fine crushing bin 801 is fixedly installed with a connecting pipe 802 by screws, the outer surface of the connecting pipe 802 is fixedly connected with a plurality of output pipes 803, one end of the plurality of output pipes 803 are movably passed through the interior of the fine crushing bin 801, one end of the plurality of output pipes 803 are fixedly connected with a second telescopic hose 804 by screws, one end of the plurality of second telescopic hoses 804 are fixedly connected with a hollow ring 805, the outer surface of the hollow ring 805 is provided with a plurality of third high-pressure nozzles 806, the outer surface of the hollow ring 805 is rotatably connected to the inner wall of the fine crushing bin 801, the outer surface of the hollow ring 805 is fixed with a gear ring 810, the inner wall of the fine crushing bin 801 is fixedly installed with a drive motor 807 through an auxiliary plate, the output of the drive motor 807 The outlet end is fixedly connected to a driving rod 808, and the bottom end of the driving rod 808 is movably embedded in the interior of the fine crushing bin 801. The outer surface of the driving rod 808 is fixedly sleeved with a driving gear 809, and the outer surface of the driving gear 809 is meshed with the outer surface of the gear ring 810. The outlet end of the feeding device 3 is fixedly penetrated into the interior of the primary crushing bin 902, and the top of the mounting base 1 is provided with an auxiliary frame through which an air pump 5 is provided. The air inlet end of the air pump 5 is fixedly connected to an air inlet pipe 6, one end of the air inlet pipe 6 is fixedly penetrated into the interior of the high-pressure gas tank 4, and the air outlet end of the air pump 5 is fixedly connected to an air outlet pipe 7, one end of the air outlet pipe 7 is fixedly penetrated into the interior of the connecting pipe 802, and the other end of the air outlet pipe 7 is fixedly penetrated into the interior of the upper connecting pipe 903, and another end of the air outlet pipe 7 is fixedly penetrated into the interior of the lower connecting pipe 905. Three solenoid valves 10 are provided on the outer surface of the air outlet pipe 7, and the top of the fine crushing bin 801 is fixedly connected to a discharge pipe 11.

[0035] In this embodiment, the material crushed by the primary crushing bin 902 enters the interior of the fine crushing bin 801 under the drive of the high-pressure airflow. At this time, when the laser particle size analyzer 914 detects that the material has not yet reached the level of ultra-fineness, the controller 2 is used to increase the delivery intensity of the air pump 5, and the solenoid valve 10 corresponding to the connecting pipe 802 is opened at the same time, so that the high-pressure gas enters the interior of the connecting pipe 802 through the outlet pipe 7, and enters the interior of the second telescopic hose 804 through multiple output pipes 803, and is input into the interior of the hollow ring 805, and then is sprayed outward through multiple third high-pressure nozzles 806 to crush the material again. In order to crush the material in an all-round way, the crushing is achieved. The particle size is small and uniform. The driving motor 807 is started by the controller 2 to drive the driving rod 808 to rotate, and then the driving gear 809 is driven to rotate back and forth along the driving rod 808, so that the gear ring 810 rotates back and forth with the driving gear 809, and then the hollow ring 805 is driven to rotate. Among them, since the second telescopic hose 804 is retractable and bendable, and the rotation angle of the hollow ring 805 is within the bending range of the second telescopic hose 804, the rotation of the hollow ring 805 will not cause too much impact on the second telescopic hose 804. Through the rotation of the hollow ring 805, the multiple third high-pressure nozzles 806 are driven to rotate, thereby uniformly and finely crushing the quartz sand material in an all-round manner. The crushed material passes through the external vortex. The wheel classifier generates centrifugal force and transports it to the next processing equipment. Through the action of the secondary ultra-fine processing component 8, further all-round secondary refinement of the material is achieved, thereby reducing the generation of large particle materials while ensuring the uniformity of material crushing. Among them, the third high-pressure nozzle 806, the first high-pressure nozzle 904 and the second high-pressure nozzle 912 all adopt Laval nozzle structure, following the compressible fluid flow law in gas dynamics. After the high-pressure gas enters the nozzle, the cross-sectional area gradually decreases in the contraction section and the flow rate gradually increases. At this time, the gas is in a subsonic state. At the minimum cross-sectional area, the gas flow rate reaches the maximum. At this time, the gas density, pressure and temperature drop sharply due to adiabatic expansion. After passing through the minimum cross-sectional area, the gas expands. The cross-sectional area of the segment gradually increases, and the gas continues to expand and accelerate to supersonic speed, eventually forming a high-energy airflow and ejecting it outward. After the airflow is ejected from the second high-pressure nozzle 912, the quartz sand material enters the airflow field and is entrained by the high-speed airflow, obtaining huge kinetic energy, thereby causing violent collisions between high-speed particles and between particles and the warehouse wall. The kinetic energy is converted into stress inside the particles. When the stress exceeds the compressive strength of the material, the particles undergo brittle fracture and are crushed. Among them, the controller 2 is electrically connected to the feeding device 3, the air pump 5, the third high-pressure nozzle 806, the drive motor 807, the first high-pressure nozzle 904, the second high-pressure nozzle 912, the laser particle size analyzer 914, the electric telescopic rod 916 and the solenoid valve 10.

[0036] The usage and working principle of this device: When high-purity quartz sand needs to be finely crushed, first start the air pump 5 to drive the air inlet pipe 6 to extract high-pressure gas from the interior of the high-pressure gas tank 4. At the same time, the solenoid valve 10 corresponding to the upper connecting pipe 903 is started by the controller 2, so that the high-pressure gas enters the interior of the upper connecting pipe 903 through the air outlet pipe 7 and is ejected outward through multiple first high-pressure nozzles 904. Then, an appropriate amount of high-purity quartz sand of uniform size is put into the feeding device 3, and is transported to the interior of the primary crushing bin 902 through the feeding device 3. The high-pressure gas ejected outward by multiple first high-pressure nozzles 904 causes violent impact, collision and friction between the materials, thereby achieving ultra-fine crushing of the quartz sand. At the same time, the laser particle size analyzer 914 is used to detect whether the particle size of the crushed material is uniform and fine. When the laser particle size analyzer 914 detects that the particle size of the crushed material is large, the controller 2 is first used to start the electric telescopic rod 916 to extend it, driving the lifting ring 915 to move upward, thereby pushing the multiple sliding rods 911 to move upward, and then driving the multiple lifting rods 910 to move upward. The movement of the lifting rods 910 drives the multiple second high-pressure nozzles 912 to move upward, and then the top ends of the multiple first telescopic hoses 913 are pulled and extended. When the multiple second high-pressure nozzles 912 move upward to the same plane as the multiple first high-pressure nozzles 904, the electric telescopic rod 916 can be closed. Figure 4As shown, each second high-pressure nozzle 912 is respectively arranged between the outer surfaces of the two first high-pressure nozzles 904, and the distance between the second high-pressure nozzle 912 and the first high-pressure nozzles 904 on both sides is the same. Then, the solenoid valve 10 corresponding to the lower connecting pipe 905 can be opened by the controller 2, and the delivery intensity of the high-pressure gas per unit time of the air pump 5 can be increased, so that the high-pressure gas enters the interior of the lower connecting pipe 905, and passes through the multiple fixed drainage pipes 906 and the multiple first telescopic hoses 913 respectively into the interior of the second high-pressure nozzle 912, and is ejected through the multiple second high-pressure nozzles 912 to crush the quartz sand material. The material crushed by the primary crushing bin 902 enters the interior of the fine crushing bin 801 under the drive of the high-pressure airflow. At this time, when the laser particle size analyzer 914 detects that the material still has not reached the ultra-fine level, the delivery intensity of the air pump 5 is strengthened again by the controller 2, and the solenoid valve 10 corresponding to the connecting pipe 802 is opened at the same time, so that the high-pressure gas passes The air outlet pipe 7 enters the interior of the connecting pipe 802, and enters the interior of the second telescopic hose 804 through multiple output pipes 803, and is input into the interior of the hollow ring 805. It is then sprayed outward through multiple third high-pressure nozzles 806 to crush the material again. Then, the driving motor 807 is started by the controller 2, driving the driving rod 808 to rotate, thereby driving the driving gear 809 to rotate back and forth along the driving rod 808, so that the gear ring 810 rotates back and forth with the driving gear 809, thereby driving the hollow ring 805 to rotate. Among them, since the second telescopic hose 804 is telescopic and bendable, and the rotation angle of the hollow ring 805 is within the bending range of the second telescopic hose 804, the rotation of the hollow ring 805 will not have a significant impact on the second telescopic hose 804. The rotation of the hollow ring 805 drives the multiple third high-pressure nozzles 806 to rotate, thereby uniformly and finely crushing the quartz sand material in an all-round manner. The crushed material is transported to the next processing equipment through the centrifugal force generated by the external turbine classifier.

[0037] The wiring diagram of the controller 2, feeding device 3, air pump 5, third high-pressure nozzle 806, drive motor 807, first high-pressure nozzle 904, second high-pressure nozzle 912, laser particle size analyzer 914, electric telescopic rod 916 and solenoid valve 10 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to actual use. Therefore, the control method and wiring arrangement of the controller 2, feeding device 3, air pump 5, third high-pressure nozzle 806, drive motor 807, first high-pressure nozzle 904, second high-pressure nozzle 912, laser particle size analyzer 914, electric telescopic rod 916 and solenoid valve 10 will no longer be explained in detail.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-purity quartz sand airflow milling and ultrafine grinding device, comprising a mounting base (1), a controller (2) disposed on the top of the mounting base (1), a feeding device (3) for conveying quartz sand disposed near the center of the top of the mounting base (1), and a high-pressure gas tank (4) for storing high-pressure gas disposed near one side edge of the top of the mounting base (1), characterized in that: A graded crushing assembly (9) for crushing quartz sand is provided on the top of the mounting base plate (1), a secondary ultrafine processing assembly (8) for finely crushing quartz sand is provided on the top of the graded crushing assembly (9), the graded crushing assembly (9) includes a primary crushing chamber (902), a laser particle size analyzer (914) is provided on the inner wall of the primary crushing chamber (902), a plurality of first high-pressure nozzles (904) for spraying high-pressure gas are provided near the top of the inner wall of the primary crushing chamber (902), and the interior of the primary crushing chamber (902) near the bottom is provided with a laser particle size analyzer (914). A plurality of second high-pressure nozzles (912) are provided at the bottom, one end of each of the plurality of second high-pressure nozzles (912) is coupled to and communicated with a first telescopic hose (913), and a lifting rod (910) is fixedly installed on the outer surface of each of the plurality of second high-pressure nozzles (912). After the quartz sand enters the primary crushing bin (902), it is first crushed by the high-pressure gas ejected from the first high-pressure nozzle (904). When the laser particle size analyzer (914) detects that the refined particle size of the quartz sand is insufficient, a plurality of second high-pressure nozzles (912) can be added to crush the quartz sand simultaneously.

2. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 1 is characterized in that: The graded crushing assembly (9) further comprises a support frame (901), an upper connecting pipe (903) is fixedly mounted on the outer surface of the primary crushing chamber (902) near the center thereof by screws, a lower connecting pipe (905) is fixedly mounted on the outer surface of the primary crushing chamber (902) near the bottom thereof by screws, a plurality of fixed drainage pipes (906) are fixedly connected to the outer surface of the lower connecting pipe (905), and a plurality of chute grooves (907) are provided on the inner wall of the primary crushing chamber (902).

3. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 2 is characterized in that: A support ring (908) is fixedly installed on the inner wall of the primary crushing chamber (902) near the bottom, a plurality of vertical hollow tubes (909) are fixedly installed on the top of the support ring (908), a sliding rod (911) is fixedly installed on the bottom ends of the plurality of lifting rods (910), a lifting ring (915) is slidably connected between the outer surfaces of the plurality of vertical hollow tubes (909), and an electric telescopic rod (916) is set near the center of the top of the support ring (908) by screws.

4. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 3 is characterized in that: The bottom of the support frame (901) is fixedly connected to the top of the mounting base plate (1), the top of the support frame (901) is fixedly connected to the outer surface of the primary crushing chamber (902), one end of each of the plurality of first high-pressure nozzles (904) is fixedly connected to the interior of the upper connecting pipe (903), and one end of each of the plurality of fixed drainage pipes (906) is fixedly passed through the interior of the primary crushing chamber (902).

5. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 4 is characterized in that: One end of the plurality of lifting rods (910) is movable and penetrates the outside of the plurality of vertical hollow tubes (909), and both ends of the plurality of sliding rods (911) are movable and penetrates the outside of the plurality of vertical hollow tubes (909). The bottoms of the plurality of sliding rods (911) are fixedly connected to the top of the lifting ring (915). The outer surfaces of the plurality of second high-pressure nozzles (912) slide with the inner walls of the plurality of slide grooves (907) through auxiliary rods. One end of the plurality of first telescopic hoses (913) is connected with one end of the plurality of fixed drainage tubes (906). The top of the electric telescopic rod (916) is fixedly connected to the inner wall of the lifting ring (915).

6. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 5, characterized in that: The secondary ultrafine processing component (8) includes a fine crushing chamber (801), the bottom end of the fine crushing chamber (801) is fixedly connected to the top end of the primary crushing chamber (902), a connecting pipe (802) is fixedly installed on the outer surface of the fine crushing chamber (801) by screws, and the outer surface of the connecting pipe (802) is fixedly connected to a plurality of output pipes (803), and one end of each of the plurality of output pipes (803) is movable and penetrates into the interior of the fine crushing chamber (801).

7. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 6, characterized in that: One end of each of the plurality of output pipes (803) is fixedly connected to a second telescopic hose (804) by a screw, and one end of each of the plurality of second telescopic hoses (804) is fixedly connected to a hollow ring (805), and a plurality of third high-pressure nozzles (806) are provided on the outer surface of the hollow ring (805), and the outer surface of the hollow ring (805) is rotatably connected to the inner wall of the fine crushing chamber (801), and a gear ring (810) is fixed to the outer surface of the hollow ring (805).

8. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 7, characterized in that: A driving motor (807) is fixedly mounted on the inner wall of the fine crushing bin (801) via an auxiliary plate. The output end of the driving motor (807) is fixedly connected to a driving rod (808). The bottom end of the driving rod (808) is movably embedded in the interior of the fine crushing bin (801). A driving gear (809) is fixedly sleeved on the outer surface of the driving rod (808). The outer surface of the driving gear (809) is meshed with the outer surface of the gear ring (810).

9. The high-purity quartz sand airflow milling and ultra-fine processing equipment according to claim 8, characterized in that: The discharge end of the feeding device (3) is fixedly connected to the interior of the primary crushing chamber (902); an air pump (5) is provided on the top of the mounting base plate (1) through an auxiliary frame; the air inlet end of the air pump (5) is fixedly connected to an air inlet pipe (6); one end of the air inlet pipe (6) is fixedly connected to the interior of the high-pressure gas tank (4); and the air outlet end of the air pump (5) is fixedly connected to an air outlet pipe (7).

10. The high-purity quartz sand airflow milling and ultra-fine refinement equipment according to claim 9, characterized in that: One end of the air outlet pipe (7) is fixedly connected to the interior of the connecting pipe (802), the other end of the air outlet pipe (7) is fixedly connected to the interior of the upper connecting pipe (903), and another end of the air outlet pipe (7) is fixedly connected to the interior of the lower connecting pipe (905). Three solenoid valves (10) are provided on the outer surface of the air outlet pipe (7), and the top end of the fine crushing bin (801) is fixedly connected to a discharge pipe (11).

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