Microwave chlorination device for high-purity quartz sand

Abstract

The invention discloses a high-purity quartz sand microwave chlorination device, and relates to the technical field of quartz sand microwave chlorination, the high-purity quartz sand microwave chlorination device specifically comprises a tank body, a microwave generator, a reaction tank, a tail gas pipe, a feeding pipe and a discharging pipe, the lower part of the inner wall of the reaction tank is provided with an impurity storage mechanism, and the inner wall of the reaction tank is fixedly connected with a gas inlet pipe; a heating block is mounted on the outer surface of the reaction tank, and one side of the heating block is electrically connected with a power module through a wire; according to the device, an arc-shaped reaction plate in the purification mechanism is designed into a shape with high periphery and a concave middle, so that quartz sand falling firstly can obliquely slide along the surface of the arc-shaped reaction plate and is distributed towards the concave middle part, and subsequently falling quartz sand can always collide with the upper surface of the arc-shaped reaction plate; therefore, metal impurities wrapped inside are exposed; the interior of the crushing cutter is designed to be hollow and communicated with the ventilation pipe, so that hydrogen chloride gas can flow out from the air outlet holes in the surface of the crushing cutter, and the contact area with quartz sand impurities is increased.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand microwave chlorination, in particular to a high-purity quartz sand microwave chlorination device. Background Art

[0002] With the advancement of the times, the installed capacity of photovoltaic power plants and the demand for semiconductor chips have surged, and the high-purity quartz sand market has shown strong growth. Among them, the high-purity quartz sand microwave chlorination unit is a specialized device used to purify quartz sand. It utilizes microwave heating and the continuous injection of hydrogen chloride gas under high-temperature conditions. Hydrogen chloride gas has strong reducing properties at high temperatures and can chemically react with metal impurities in the material to form volatile or soluble metal chlorides, thereby removing metal impurities such as aluminum, iron, titanium, sodium, and potassium from the quartz sand, improving the purity of the quartz sand to meet the extremely high purity requirements of high-end industries such as semiconductors and photovoltaics.

[0003] During the feeding process, quartz sand may clump and the material may accumulate, causing the impurities inside the accumulation to be unable to react completely with the hydrogen chloride gas, requiring further treatment.

[0004] At the same time, although high-temperature chlorination can theoretically achieve complete volatilization of impurities, in industrial practice, due to the wide variety of metal impurities in quartz sand and the different reaction activities of different metal impurities, hydrogen chloride gas cannot completely react with all metal impurities, that is, it cannot be 100% purified. There will always be a certain amount of residual metal impurities that are difficult to react with hydrogen chloride gas attached to the inner wall of the reaction tank and need to be extracted separately. If extraction is not performed, the residual impurities will occupy the reaction space, hindering the contact reaction between the newly added quartz sand and hydrogen chloride gas.

[0005] In summary, it is necessary to develop a high-purity quartz sand microwave chlorination device to solve the above problems. Summary of the Invention

[0006] To address the above technical problems, the present invention provides a high-purity quartz sand microwave chlorination device, specifically comprising: a tank body, a microwave generator, a reactor, a tail gas pipe, a feed pipe, and a discharge pipe. A storage mechanism is installed at the lower portion of the inner wall of the reactor body, an air inlet pipe is fixedly connected to the inner wall of the reactor body, and a heating block is installed on the outer surface of the reactor body, one side of which is electrically connected to a power module via a wire. The tank body is installed outside the reactor body, and the feed pipe is installed diagonally above the left side of the reactor body. Quartz sand is transported into the reactor body through the feed pipe. The microwave generator utilizes microwave heating and cooperates with the heating block to continuously supply hydrogen chloride gas into the reactor body through the air inlet pipe under high temperature conditions. The hydrogen chloride gas reacts with metal impurities in the material at high temperature to generate a volatile gas, which is discharged through the tail gas pipe. The purified quartz sand is discharged through the discharge pipe. The microwave generator is installed on the inner wall of the tank body and extends partially outward. Microwave heating is an internal heating method with characteristics such as a fast heating rate and selective heating.

[0007] The high-purity quartz sand microwave chlorination device also includes: The purification mechanism can crush and stir the agglomerated quartz sand inside the reaction tank to separate various impurities inside the quartz sand. The purification mechanism is arranged at the center of the inner wall of the reaction tank.

[0008] Furthermore, the purification mechanism includes: A support seat, wherein a servo motor is installed on the inner wall of the support seat, a connecting rod is fixedly connected to the output end of the servo motor, a ventilation pipe is installed at the bottom of the connecting rod, a purification component is installed on the outer surface of the connecting rod, and a fitting component is slidably connected to the lower surface of the purification component; the support seat servo motor provides support.

[0009] The material control component is mounted on the outer surface of the vent pipe. A collecting component is provided on one side of the material control component. An arc-shaped reaction plate is mounted on the outer surface of the collecting component. The center of the upper surface of the arc-shaped reaction plate is concave to facilitate the rolling and collection of the quartz sand material.

[0010] Furthermore, the support base is mounted at the center of the upper surface of the reaction tank, the connecting rod is a solid tube, the outer surface of the bottom end of the vent tube is rotatably connected to the inner surface of the intake tube, and the bottom end of the vent tube and the top end of the intake tube are interconnected, the material control component is positioned below the interlocking component, and the outer wall of the arc-shaped reaction plate is mounted on the inner wall of the reaction tank. The connecting rod is solid, while the vent tube is hollow, and the connection between the two is located above the material control component.

[0011] Furthermore, the purification component includes a crushing blade having a hollow inner wall, air outlet holes formed on both sides of the outer surface of the crushing blade, and a sliding groove formed on the inner wall of the crushing blade. The connection point between the connecting rod and the vent pipe is also located above the lower end of the crushing blade. Multiple groups of crushing blades are provided. During rotation, the crushing blades are slidably connected to the upper surface of the arc-shaped reaction plate. The bottom of the sliding groove slides in contact with the upper surface of the arc-shaped reaction plate to prevent gas inside the crushing blade from leaking out through gaps other than the air outlet holes.

[0012] Furthermore, the lower surface of the crushing blade is slidably connected to the upper surface of the arc-shaped reaction plate, the end of the crushing blade closest to the connecting rod is fixedly connected to the outer surface of the ventilation pipe, and the inner wall of the crushing blade is connected to the inner wall of the ventilation pipe. Since the crushing blade is connected to the interior of the ventilation pipe, gas can enter the ventilation pipe from the interior of the intake pipe and further enter the interior of the crushing blade.

[0013] Furthermore, the interlocking component includes: The chimeric block has an inner wall provided with a slot.

[0014] Furthermore, the interlocking block is positioned at the center of the curved reaction plate, and the outer surface of the interlocking block is slidably connected to the center of the inner wall of the curved reaction plate. The upper surface of the interlocking block is tightly fitted to the inner wall of the curved reaction plate, and the locking groove is slidably connected to the inner wall of the curved reaction plate. Because the contact area between the interlocking block and the curved reaction plate is tightly fitted, fine quartz sand does not seep through the gap between the two.

[0015] Furthermore, the material control component includes: A wire tube, wherein the outer surface of the wire tube is threadedly connected to a ring block, both sides of the outer surface of the ring block are fixedly connected to a pull rope, the outer surface of the pull rope is slidably connected to a limit tube, and both sides of the outer surface of the limit tube are fixedly connected to a fixing rod; The lifting plate has a supporting spring fixed to its bottom. The ring block can move up and down along the outer surface of the wire tube and drive the movement of the pull rope.

[0016] Furthermore, the wire tube is sleeved and fixed on the outer surface of the ventilation pipe, the end of the pull rope away from the ring block is fixed to the bottom of the lifting plate, and the top of the fixing rod is fixed to the bottom of the arc-shaped reaction plate.

[0017] Furthermore, the upper surface of the lifting plate is mounted on the lower surface of the interlocking block, the outer surface of the lifting plate is slidably connected to the inner wall of the limiting tube, and the bottom end of the support spring is fixedly connected to the inner wall of the limiting tube. The support spring has a strong supporting force, which can provide a certain support for the lifting plate and the interlocking block. The upper surface of the interlocking block engages with the inner wall of the arc-shaped reaction plate, thereby limiting the interlocking block and preventing it from continuing to move upward under the elastic force of the support spring.

[0018] Furthermore, the collecting component includes: A bending rod, wherein a support rod is installed on the outer surface of the bending rod, a discharge block is installed on the top of the support rod, a fiber sleeve is installed on the side of the bending rod close to the discharge block, and an electromagnet is fixedly connected to the top of the fiber sleeve; The electrode sheet is provided with a metal contact sheet above the motor sheet.

[0019] Furthermore, one end of the bending rod is fixed to the bottom of the interlocking block, and the end of the bending rod away from the interlocking block is fixed to the bottom of the electrode sheet. The outer surface of the discharge block is slidably connected to the inner wall of the arc reaction plate. The electromagnet is embedded in the inner wall of the arc reaction plate. The metal contact is installed on the inner wall of the arc reaction plate. The metal contact is electrically connected to one end of the power module through a wire, and one end of the electromagnet is electrically connected to one end of the power module through a wire. The power module is electrically connected to the metal contact and the electromagnet respectively through a wire, and at the junction of the metal contact and the electrode sheet, the electrode sheet is connected to the other side of the electromagnet through a wire inside the fiber sleeve, forming a closed loop, which ensures that the electromagnet is always energized and has the ability to adsorb magnetic metals in the initial state. The electromagnet is arranged in a ring shape and is embedded in the inner wall of the arc reaction plate.

[0020] Furthermore, the storage mechanism includes: The storage tube has a protrusion on its inner surface, a rubber rod fixed to its inner wall, and an opening and closing plate fixed to its end away from the storage tube. The inner wall of the opening and closing plate is rotatably connected to a rotating shaft. The inner wall of the storage tube is used to accurately recover garbage that falls from above.

[0021] Furthermore, the storage tube is embedded in the inner wall of the reaction tank, the outer surface of the opening and closing plate is slidably connected to the inner wall of the storage tube, and the upper and lower ends of the rotating shaft are fixed to the inner wall of the storage tube.

[0022] The beneficial effects of the present invention are as follows: the arc-shaped reaction plate inside the purification mechanism is designed to be high on all sides and concave in the middle, so that the quartz sand that falls first can slide smoothly along its inclined surface and distribute toward the concave middle part, resulting in the quartz sand that falls later being able to always collide with the upper surface of the arc-shaped reaction plate, thereby exposing the metal impurities wrapped inside; the interior of the crushing knife is designed to be hollow and connected to the vent pipe, so that the hydrogen chloride gas can flow out from the vent holes opened on the surface of the crushing knife, thereby increasing the contact area with the quartz sand impurities, and the rotation of the crushing knife can accelerate the flow speed of the hydrogen chloride gas, compared with the natural flow of hydrogen chloride, significantly shortening its contact and reaction time with the metal impurities; at the same time, the crushing knife and the vent pipe limit the flow path of the hydrogen chloride gas, thereby enhancing the utilization rate of the hydrogen chloride gas and avoiding the situation where part of the hydrogen chloride gas directly bypasses the quartz sand impurities and flows upward, resulting in the problem of wasting part of the gas. During the rotation of the crushing knife, some fine quartz sand may enter the interior of the crushing knife through the air outlet. The setting of the sliding trough can ensure that the quartz sand entering the interior of the crushing knife can also be in the enclosed space between the bottom of the crushing knife and the upper surface of the arc-shaped reaction plate, which will not hinder the flow of gas from the air outlet and will not cause the problem of failure to react due to lack of contact with gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the present invention; Figure 2 is a cross-sectional view of the tank body of the present invention; Figure 3 It is a structural schematic diagram of the purification mechanism of the present invention; Figure 4 is a cross-sectional view of the arc-shaped reaction plate of the present invention; Figure 5 It is a structural schematic diagram of the vent pipe of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 It is a schematic structural diagram of the purification component of the present invention; Figure 8 is a cross-sectional view of the interlocking block of the present invention; Figure 9 Schematic diagram of the structure of the material control component of the present invention; Figure 10 is a cross-sectional view of the limiting tube of the present invention; Figure 11 It is a structural schematic diagram of the collecting component of the present invention; Figure 12 It is a cross-sectional view of the storage pipe of the present invention.

[0024] In the figure: 1, tank body; 2, microwave generator; 3, reaction tank; 4, tail gas pipe; 5, feed pipe; 6, discharge pipe; 7, purification mechanism; 71, support base; 72, servo motor; 73, connecting rod; 74, vent pipe; 75, purification component; 751, crushing knife; 752, air outlet; 753, sliding groove; 76, fitting component; 761, fitting block; 762, card slot; 77, material control component; 771, wire tube; 772, ring block; 773, pull rope; 774, Limiting tube; 775, fixing rod; 776, lifting plate; 777, supporting spring; 78, collecting component; 781, bending rod; 782, supporting rod; 783, discharge block; 784, fiber sleeve; 785, electromagnet; 786, electrode sheet; 787, metal contact sheet; 79, arc-shaped reaction plate; 8, storage mechanism; 81, storage tube; 82, bump; 83, rubber rod; 84, opening and closing plate; 85, rotating shaft; 9, air intake pipe; 10, heating block; 11, power module. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0026] For the first example, please refer to Figure 1-Figure 5 The present invention is a high-purity quartz sand microwave chlorination device, which specifically includes: a tank body 1, a microwave generator 2, a reaction tank 3, a tail gas pipe 4, a feed pipe 5, and a discharge pipe 6. A storage mechanism 8 is installed at the lower part of the inner wall of the reaction tank 3, an air inlet pipe 9 is fixedly connected to the inner wall of the reaction tank 3, a heating block 10 is installed on the outer surface of the reaction tank 3, and one side of the heating block 10 is electrically connected to a power module 11 through a wire; the tank body 1 is installed outside the reaction tank 3, and the feed pipe 5 is installed at an upper and oblique position on the left side of the reaction tank 3 body 1. The quartz sand material is transported into the interior of the reaction tank 3 through the feed pipe 5. The microwave generator 2 utilizes microwave heating and cooperates with the heating block 10. Under high temperature conditions, hydrogen chloride gas is continuously supplied into the interior of the reaction tank 3 through the air inlet pipe 9. The hydrogen chloride gas can react with metal impurities in the material at high temperature to generate easily volatile gas, which is discharged through the tail gas pipe 4. The purified quartz sand is discharged from the discharge pipe 6, wherein the microwave generator 2 is installed on the inner wall of the tank body 1 and extends outward. Microwave heating is an internal heating method with the characteristics of fast heating rate and selective heating.

[0027] The high-purity quartz sand microwave chlorination device also includes: The purification mechanism 7 can crush and stir the agglomerated quartz sand inside the reaction tank 3 to separate various impurities inside the quartz sand. The purification mechanism 7 is arranged at the center of the inner wall of the reaction tank 3.

[0028] Purification mechanism 7 includes: Support base 71, the inner wall of the support base 71 is installed with a servo motor 72, the output end of the servo motor 72 is fixedly connected to a connecting rod 73, the bottom of the connecting rod 73 is installed with a vent pipe 74, the outer surface of the connecting rod 73 is installed with a purification component 75, and the lower surface of the purification component 75 is slidably connected with a fitting component 76; the support base 71 provides support for the servo motor 72.

[0029] The material control component 77 is mounted on the outer surface of the vent pipe 74. A collecting component 78 is provided on one side of the material control component 77. An arc-shaped reaction plate 79 is mounted on the outer surface of the collecting component 78. The center of the upper surface of the arc-shaped reaction plate 79 is set into a concave shape to facilitate the rolling and collection of the quartz sand material.

[0030] Support base 71 is mounted at the center of the upper surface of reaction tank 3. Connecting rod 73 is a solid tube. The outer surface of the bottom end of vent tube 74 is rotatably connected to the inner surface of intake pipe 9, and the bottom end of vent tube 74 and the top end of intake pipe 9 are interconnected. Material control component 77 is located below interlocking component 76, and the outer wall of arc-shaped reaction plate 79 is mounted on the inner wall of reaction tank 3. Connecting rod 73 is solid, while vent tube 74 is hollow. The connection between the two is located above material control component 77.

[0031] The specific working process is as follows: First, in this device, a layer of graphite material is coated on the outer surface of the arc reaction plate 79 to ensure that the arc reaction plate 79 is a strong absorber of microwaves, and the heating block 10 surrounds the area around the arc reaction plate 79, which can locally heat the arc reaction plate 79 instead of the entire reaction tank 3. At the same time, the remaining parts of the reaction tank 3, such as the wall surface, are made of microwave transparent material, and the microwave generator 2 introduces microwave energy into the interior of the reaction tank 3 through a coaxial probe, ensuring that the microwave energy is mainly concentrated on the arc reaction plate 79, realizing efficient conversion of microwave energy into thermal energy, and realizing concentrated utilization of heat, which is convenient for the subsequent chemical reaction of quartz sand on the surface of the arc reaction plate 79.

[0032] The microwave generator 2 is then activated and, in conjunction with the heating block 10, microwave heating is performed. Hydrogen chloride gas is then continuously supplied to the interior of the reaction tank 3 through the inlet pipe 9, and the quartz sand to be purified is transported into the reaction tank 3 through the feed pipe 5. Under high temperature conditions, the hydrogen chloride gas reacts with the metal impurities in the quartz sand to produce volatile gases, which are then discharged from the tail pipe 4 above.

[0033] The quartz sand falling from the feed pipe 5 will first hit the higher part of the upper surface of the arc-shaped reaction plate 79 and slide downward along the inclined surface of the arc-shaped reaction plate 79. During the collision and rolling process, a part of the agglomerated quartz sand can be broken up and some metal impurities wrapped inside can be leaked out to react with the chlorine gas.

[0034] Among them, the arc-shaped reaction plate 79 adopts a design with high sides and a concave middle, which can prevent the fallen quartz sand from continuing to accumulate on the surface of the reaction plate, and can allow the quartz sand that is broken first to slide along the inclined surface to be distributed in the concave area, so that the subsequent fallen quartz sand can always collide with the upper surface of the arc-shaped reaction plate 79, thereby exposing the metal impurities wrapped inside, creating conditions for subsequent chemical reactions, and the subsequent continued falling quartz sand impurities will not fall on the surface of the already accumulated soft quartz sand, resulting in more and more fallen quartz sand being unable to be broken.

[0035] The servo motor 72 is started to drive the connection rod 73 to rotate, which further drives the purification component 75 and the vent pipe 74 to rotate. The purification component 75 rotates along the upper surface of the arc-shaped reaction plate 79, and can further collide with the quartz sand material accumulated in blocks, so that the quartz sand is dispersed from the surface of the arc-shaped reaction plate 79. The various metal impurities inside are exposed under the impact and can effectively contact and react with the hydrogen chloride gas, thereby avoiding the quartz sand from agglomerating and piling up in one place, resulting in the impurities inside the accumulation being unable to react completely with the hydrogen chloride gas.

[0036] Purification component 75 includes a crushing blade 751, the inner wall of which is hollow. Air vents 752 are formed on both sides of the outer surface of crushing blade 751, and a sliding groove 753 is formed on the inner wall of crushing blade 751. The connection point between connecting rod 73 and ventilation tube 74 is also located above the lower end of crushing blade 751. Crushing blade 751 is provided in multiple groups. Crushing blade 751 is slidably connected to the upper surface of arc-shaped reaction plate 79 during rotation. The bottom of sliding groove 753 slides in contact with the upper surface of arc-shaped reaction plate 79, preventing gas inside crushing blade 751 from leaking out through gaps other than air vents 752.

[0037] The lower surface of the crushing blade 751 is slidably connected to the upper surface of the arc-shaped reaction plate 79. The end of the crushing blade 751 near the connecting rod 73 is fixedly connected to the outer surface of the vent tube 74, and the inner wall of the crushing blade 751 is connected to the inner wall of the vent tube 74. Because the crushing blade 751 is connected to the interior of the vent tube 74, gas can enter the vent tube 74 from the interior of the inlet pipe 9 and further enter the interior of the crushing blade 751.

[0038] The specific working process is as follows: Since the bottom end of the vent pipe 74 is connected to the top end of the intake pipe 9, the gas can smoothly enter the interior of the vent pipe 74 through the intake pipe 9 and flow upward to the interior of the purification component 75, that is, the gas can finally flow into the interior of the multiple crushing knives 751 through the vent pipe 74.

[0039] Therefore, the interior of the crushing blade 751 is filled with hydrogen chloride gas, which then flows out through the multiple gas outlet holes 752 opened on the surface and quickly contacts and reacts with the quartz sand impurities in contact with the surface of the crushing blade 751. In the process of the crushing blade 751 colliding with the quartz sand impurities and leaking metal impurities, the hydrogen chloride gas flowing on its surface can directly react with the metal impurities quickly. At the same time, the crushing blade 751 can also accelerate the flow speed of the hydrogen chloride gas during the rotation process, significantly shortening its contact and reaction time with the metal impurities compared to the natural flow of hydrogen chloride.

[0040] The connection between the vent pipe 74 and the crushing blade 751 ensures the flow path of the hydrogen chloride gas, so that the hydrogen chloride can only flow out from the gas outlet 752 opened on the surface of the crushing blade 751, thereby enhancing the utilization rate of the hydrogen chloride gas and preventing some hydrogen chloride gas from bypassing the quartz sand impurities and continuously flowing upward without being able to react with the metal impurities, resulting in gas waste.

[0041] At the same time, the concave design in the middle of the arc-shaped reaction plate 79 can ensure that most of the quartz sand is accumulated in the concave area, thereby covering a portion of the crushing knife 751. In the process of the crushing knife 751 rotating, crushing and releasing gas, most of the hydrogen chloride gas remains inside the quartz sand until the reaction is complete, and does not flow directly upward, further avoiding the problem of gas waste.

[0042] Although the crushing blade 751 has multiple air outlets 752 on its surface, during its rotation, some fine quartz sand may enter the crushing blade 751 through the air outlets 752. However, since the crushing blade 751 is configured to fit the upper surface of the arc-shaped reaction plate 79, the quartz sand that enters its interior will fall through the sliding groove 753 formed at the bottom of the crushing blade 751 onto the upper surface of the arc-shaped reaction plate 79 and slide downward along the inclined surface. Therefore, the quartz sand will not hinder the flow of gas from the air outlets 752. Since the interior of the crushing blade 751 is already filled with hydrogen chloride gas, there is no problem of quartz sand impurities that fall into the crushing blade 751 being unable to come into contact with the gas and react.

[0043] For the second embodiment, please refer to Figures 1-12 The present invention is a high-purity quartz sand microwave chlorination device: the interlocking component 76 includes: The engaging block 761 has an inner wall formed with a slot 762 .

[0044] The interlocking block 761 is positioned at the center of the curved reaction plate 79, and the outer surface of the interlocking block 761 is slidably connected to the center of the inner wall of the curved reaction plate 79. The upper surface of the interlocking block 761 is tightly fitted against the inner wall of the curved reaction plate 79, and the engaging groove 762 is slidably connected to the inner wall of the curved reaction plate 79. Because the contact area between the interlocking block 761 and the curved reaction plate 79 is tightly fitted, fine quartz sand is prevented from seeping through the gap between the two.

[0045] The material control component 77 includes: A wire tube 771 is threadedly connected to a ring block 772 on its outer surface. A pull rope 773 is fixedly connected to both sides of the outer surface of the ring block 772. The outer surface of the pull rope 773 is slidably connected to a limit tube 774. A fixing rod 775 is fixedly connected to both sides of the outer surface of the limit tube 774. Lifting plate 776, the bottom of lifting plate 776 is fixed with support spring 777. Ring block 772 can move up and down along the outer surface of silk tube 771, and drives the movement of pull rope 773.

[0046] The wire tube 771 is sleeved and fixed on the outer surface of the ventilation tube 74 , the end of the pull rope 773 away from the ring block 772 is fixed to the bottom of the lifting plate 776 , and the top of the fixing rod 775 is fixed to the bottom of the arc-shaped reaction plate 79 .

[0047] The upper surface of the lifting plate 776 is mounted on the lower surface of the interlocking block 761. The outer surface of the lifting plate 776 is slidably connected to the inner wall of the limiting tube 774, and the bottom end of the support spring 777 is fixedly connected to the inner wall of the limiting tube 774. The support spring 777 has a strong supporting force, which can provide a certain support for the lifting plate 776 and the interlocking block 761. The upper surface of the interlocking block 761 engages with the inner wall of the arc-shaped reaction plate 79, thereby limiting the position of the interlocking block 761 and preventing it from continuing to move upward under the elastic force of the support spring 777.

[0048] The specific working process is as follows: First, the pull rope 773 is made of glass fiber rope and is resistant to high temperatures. Since the microwave generator 2 and the heating block 10 mainly heat the arc reaction plate 79 and the area above, the temperature below the arc reaction plate 79 is relatively low and will not have much impact on the pull rope 773.

[0049] During the operation of the equipment, the rotation of the vent pipe 74 can drive the rotation of the surface wire tube 771, and the wire tube 771 can drive the surface ring block 772 to descend during the rotation. When the wire tube 771 rotates a certain number of times, the metal impurities on the surface of the arc-shaped reaction plate 79, except for specific metal impurities that are difficult to react with hydrogen chloride gas, are basically reacted completely. At this time, the number of rotations of the wire tube 771 is also close to the preset target. During this process, the ring block 772 continues to descend along the surface of the wire tube 771, and the loose pull rope 773 is gradually in a straightened state. Until the pull rope 773 is completely straightened, it will further pull the top lifting plate 776 to slide downward along the inner wall of the limiting tube 774, and squeeze the support spring 777 at the bottom of the lifting plate 776. As the lifting plate 776 moves downward, the interlocking block 761 on its top will also descend. Finally, the upper surface of the interlocking block 761 is completely out of contact with the interior of the arc-shaped reaction plate 79. At this time, the purified quartz sand falls from the gap between the two and is discharged through the discharge pipe 6 at the bottom.

[0050] On the contrary, when the servo motor 72 drives the connecting rod 73 to reverse the ventilation tube 74, the wire tube 771 will also rotate in the opposite direction, causing the ring block 772 to move upward along its surface. At this time, the originally tightened pull rope 773 becomes loose again, and the lifting plate 776 and the interlocking block 761 move upward under the elastic reset of the support spring 777 until they are reset, allowing the interlocking block 761 to fit tightly against the inner wall of the arc-shaped reaction plate 79 again.

[0051] By periodically contacting and separating the interlocking block 761 and the arc-shaped reaction plate 79, it is ensured that the metal impurities in the quartz sand on the upper surface of the arc-shaped reaction plate 79 fully contact and react with the hydrogen chloride gas. When the preset time is reached, the interlocking block 761 is controlled to move downward, thereby accurately controlling the reaction time of the metal impurities. This process avoids the problem of incomplete reaction of impurities due to too short a reaction time, and prevents the problem of gas waste and unnecessary extension of the reaction time due to too long a reaction time.

[0052] The collecting component 78 includes: Bending rod 781, the outer surface of the bending rod 781 is installed with a support rod 782, the top of the support rod 782 is installed with a discharge block 783, the side of the bending rod 781 close to the discharge block 783 is installed with a fiber sleeve 784, the top of the fiber sleeve 784 is fixedly connected to an electromagnet 785; Electrode sheet 786 and metal contact sheet 787 are provided above the motor sheet.

[0053] Furthermore, one end of the bending rod 781 is fixed to the bottom of the interlocking block 761, and the end of the bending rod 781 away from the interlocking block 761 is fixed to the bottom of the electrode sheet 786. The outer surface of the discharge block 783 is slidably connected to the inner wall of the arc-shaped reaction plate 79. The electromagnet 785 is embedded in the inner wall of the arc-shaped reaction plate 79. The metal contact 787 is installed on the inner wall of the arc-shaped reaction plate 79. The metal contact 787 is electrically connected to one end of the power module 11 via a wire, and one end of the electromagnet 785 is electrically connected to one end of the power module 11 via a wire. Among them, the power module 11 is electrically connected to the metal contact 787 and the electromagnet 785 via a wire. At the junction of the metal contact 787 and the electrode sheet 786, the electrode sheet 786 is connected to the other side of the electromagnet 785 via a wire inside the fiber sleeve 784, forming a closed loop. In the initial state, the electromagnet 785 is always powered and has the ability to attract magnetic metals. The electromagnet 785 is arranged in a ring shape and is embedded in the inner wall of the arc-shaped reaction plate 79. The fiber sleeve 784 is made of high-temperature resistant glass fiber material, which is deformable and flexible, can meet the protection requirements of the wire in high temperature environment, and adapt to certain bending and deformation requirements.

[0054] The storage mechanism 8 includes: The inner surface of the storage tube 81 is provided with a protrusion 82. A rubber rod 83 is fixed to the inner wall of the storage tube 81. The end of the rubber rod 83 away from the storage tube 81 is fixed to an opening and closing plate 84. The inner wall of the opening and closing plate 84 is rotatably connected to a rotating shaft 85. The inner wall of the storage tube 81 is used to accurately collect garbage that falls from above.

[0055] The storage tube 81 is embedded in the inner wall of the reaction tank 3 , the outer surface of the opening and closing plate 84 is slidably connected to the inner wall of the storage tube 81 , and the upper and lower ends of the rotating shaft 85 are fixed to the inner wall of the storage tube 81 .

[0056] The specific working process is as follows: In the initial state, the metal contact piece 787 contacts the electrode piece 786, so that the electromagnet 785 is energized. At this time, the electromagnet 785 is directly below the feed tube 5, and can effectively absorb the magnetic metal impurities that fall on the upper surface of the arc-shaped reaction plate 79. Due to the inclined design of the surface of the arc-shaped reaction plate 79, most of the magnetic metal impurities are absorbed on the arc-shaped part of the upper surface of the arc-shaped reaction plate 79. When the hydrogen chloride gas inside the crushing knife 751 flows out, these fixed metal impurities always stay on the surface of the arc-shaped reaction plate 79, thereby preferentially promoting the separation of metal impurities and quartz sand. As the hydrogen chloride gas continues to flow above the arc-shaped reaction plate 79, the gas can effectively contact and react with the fixed metal impurities, thereby reducing the metal impurity content in the quartz sand in the depression of the arc-shaped reaction plate 79 and improving the reaction efficiency of the quartz sand impurities in the depression of the arc-shaped reaction plate 79.

[0057] After a certain period of time, most of the fixed metal impurities have basically reacted, but a small amount of metal impurities that are difficult to react with hydrogen chloride gas will still remain. These impurities need to be extracted and collected separately.

[0058] As the engaging block 761 moves downward, it can drive the supporting rod 782, the discharge block 783, and the electrode sheet 786 downward together via the bent rod 781. When the electrode sheet 786 loses contact with the metal contact sheet 787, the previously closed current path is disconnected, and the electromagnet 785 loses power. At this point, the difficult-to-remove metal impurities adsorbed on the surface of the arc-shaped reaction plate 79, after losing their magnetic attraction, slide downward along the inclined surface of the arc-shaped reaction plate 79. Since the discharge block 783 also loses contact with the outer surface of the arc-shaped reaction plate 79 during its downward movement, an arc-shaped gap is formed on the upper surface of the arc-shaped reaction plate 79. These difficult-to-react metal impurities fall through the gap into the storage pipe 81 in the storage mechanism 8 directly below for individual and precise recovery.

[0059] When the garbage on the inner wall of the storage pipe 81 reaches a certain level, the external staff manually rotates the two opening and closing plates 84 on the inner wall of the storage pipe 81 along the outer surface of the rotating shaft 85 toward the side away from the rubber rod 83, so as to open the interior of the storage pipe 81 and then scrape out the garbage accumulated inside. In this process, the rubber rod 83 is stretched. When the garbage scraping is completed, the two opening and closing plates 84 are released again. Both opening and closing plates 84 return to their original positions under the elastic reset of the rubber rod 83. The setting of the protrusion 82 can limit the rotation angle of the two opening and closing plates 84 to avoid the rotation angle of the two being too large, so that there is a gap between the two opening and closing plates 84, resulting in the subsequent heat continuing to overflow from the inside of the reaction tank 3. Therefore, the setting of the protrusion 82 can further reduce the waste of heat.

[0060] The arrangement of metal contacts 787, electrode sheets 786, and discharge block 783 in collection component 78 allows for the initial extraction of some metallic impurities, reducing the metallic impurity content of the quartz sand in the recessed area of ​​arc-shaped reaction plate 79 and improving the purification speed. Furthermore, the energizing and de-energizing of electromagnet 785 further allows for the isolation of metallic impurities that are difficult to fully react with, preventing residual impurities from occupying the reaction space and hindering the contact reaction between the newly added quartz sand and the hydrogen chloride gas. Metal contacts 787 are made of alloy thin sheets, while electrode sheets 786 are made of high-purity platinum sheets. The interior of electromagnet 785 is also constructed of high-temperature resistant materials.

[0061] The specific workflow is as follows: First, start the microwave generator 2 and cooperate with the heating block 10 to centrally heat the arc-shaped reaction plate 79. At the same time, hydrogen chloride gas is supplied to the reaction tank 3 through the air inlet pipe 9 to provide conditions for the subsequent reaction of quartz sand impurities. Subsequently, the arc-shaped reaction plate 79 inside the purification mechanism 7 is designed to be high on all sides and concave in the middle, so that the quartz sand that falls first can slide smoothly along the inclined surface and distribute to the concave part in the middle, so that the quartz sand that falls later can always collide with the upper surface of the arc-shaped reaction plate 79, thereby exposing the metal impurities wrapped inside; the interior of the crushing knife 751 is designed to be hollow and connected to the vent pipe 74, so that the hydrogen chloride gas can be released from the interior of the crushing knife 751, thereby increasing the contact time with the quartz sand impurities, and the rotation of the crushing knife 751 can accelerate the flow rate of the hydrogen chloride gas, which significantly shortens its contact and reaction time with the metal impurities compared to the natural flow of hydrogen chloride; at the same time, the crushing knife 751 is used to remove the hydrogen chloride gas from the metal impurities. The knife 751 and the vent pipe 74 limit the flow path of the hydrogen chloride gas, thereby enhancing the utilization rate of the hydrogen chloride gas and preventing some of the hydrogen chloride gas from bypassing the quartz sand impurities and continuing to flow upward without being able to react with the metal impurities, thereby causing the problem of gas waste. During the rotation of the crushing knife 751, some fine quartz sand may enter the interior of the crushing knife 751 through the air outlet 752. The setting of the sliding groove 753 allows the quartz sand entering the interior of the crushing knife 751 to be in the enclosed space between the bottom of the crushing knife 751 and the upper surface of the arc-shaped reaction plate 79. Therefore, these quartz sands will neither hinder the flow of gas from the air outlet 752 nor cause the problem of being unable to react due to lack of contact with the gas.

[0062] By setting the wire tube 771 and the ring block 772 in the material control component 77, the contact and separation time between the interlocking block 761 and the arc-shaped reaction plate 79 can be periodically controlled, thereby accurately controlling the reaction time of metal impurities on its surface. This process avoids the problem of incomplete reaction of impurities due to too short reaction time, and prevents the problem of gas waste and unnecessary extension of reaction time due to too long reaction time.

[0063] Finally, through the design of the metal contact piece 787, the electrode piece 786, and the electromagnet 785 in the collecting component 78, some metal impurities can be fixed separately. On the one hand, the metal impurity content in the quartz sand in the depression of the arc reaction plate 79 is reduced, and the reaction efficiency of the quartz sand impurities in the depression of the arc reaction plate 79 is improved. On the other hand, the metal impurities that are difficult to react completely can be extracted separately to avoid the problem of residual impurities occupying the reaction space and hindering the contact reaction between the newly added quartz sand and the hydrogen chloride gas.

[0064] Since the hydrogen chloride gas provided in this device enters the interior of the crushing knife 751 directly from the air inlet pipe 9 through the vent pipe 74, and then flows out from the surface of the arc-shaped reaction plate 79, it also basically flows upward and is discharged from the tail pipe 4. Therefore, it will not cause any corrosion or other effects on the components below the arc-shaped reaction plate 79.

[0065] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A high-purity quartz sand microwave chlorination device, specifically comprising: A tank body (1), a microwave generator (2), a reaction tank (3), an exhaust pipe (4), a feed pipe (5), and a discharge pipe (6), characterized in that: a storage mechanism (8) is installed at the lower portion of the inner wall of the reaction tank (3), an air inlet pipe (9) is fixedly connected to the inner wall of the reaction tank (3), a heating block (10) is installed on the outer surface of the reaction tank (3), and one side of the heating block (10) is electrically connected to a power module (11) through a wire; The high-purity quartz sand microwave chlorination device also includes: The purification mechanism (7) can crush and stir the agglomerated quartz sand inside the reaction tank (3) to separate various impurities inside the quartz sand. The purification mechanism (7) is arranged at the center of the inner wall of the reaction tank (3).

2. The high-purity quartz sand microwave chlorination device according to claim 1, wherein: The purification mechanism (7) comprises: A support base (71), wherein a servo motor (72) is mounted on the inner wall of the support base (71), a connecting rod (73) is fixedly connected to the output end of the servo motor (72), a vent pipe (74) is mounted on the bottom of the connecting rod (73), a purification component (75) is mounted on the outer surface of the connecting rod (73), and a fitting component (76) is slidably connected to the lower surface of the purification component (75); A material control component (77) is installed on the outer surface of the vent pipe (74). A collecting component (78) is provided on one side of the material control component (77). An arc-shaped reaction plate (79) is installed on the outer surface of the collecting component (78).

3. High-purity quartz sand microwave chlorination device according to claim 2, is characterized in that: The support seat (71) is installed at the center of the upper surface of the reaction tank (3), the connecting rod (73) is a solid tube, the outer surface of the bottom end of the vent pipe (74) is rotatably connected to the inner surface of the air inlet pipe (9), and the bottom end of the vent pipe (74) and the top end of the air inlet pipe (9) are connected to each other, the material control component (77) is arranged below the interlocking component (76), and the outer wall of the arc-shaped reaction plate (79) is installed on the inner wall of the reaction tank (3).

4. The high-purity quartz sand microwave chlorination device according to claim 2, wherein: The purification component (75) includes a crushing knife (751), the inner wall of the crushing knife (751) is hollow, air outlet holes (752) are provided on both sides of the outer surface of the crushing knife (751), and the inner wall of the crushing knife (751) is provided with a sliding groove (753).

5. The high-purity quartz sand microwave chlorination device according to claim 4, wherein: The lower surface of the crushing knife (751) is slidably connected to the upper surface of the arc-shaped reaction plate (79), and one end of the crushing knife (751) close to the connecting rod (73) is fixedly connected to the outer surface of the ventilation pipe (74), and the inner wall of the crushing knife (751) is connected to the inner wall of the ventilation pipe (74).

6. The high-purity quartz sand microwave chlorination device according to claim 2, wherein: The engaging component (76) includes: A chimeric block (761) is provided with a slot (762) on the inner wall of the chimeric block (761).

7. The high-purity quartz sand microwave chlorination device according to claim 6, wherein: The interlocking block (761) is arranged at the center of the arc-shaped reaction plate (79), and the outer surface of the interlocking block (761) is slidably connected to the center of the inner wall of the arc-shaped reaction plate (79). The upper surface of the interlocking block (761) is tightly fitted to the inner wall of the arc-shaped reaction plate (79), and the slot (762) is slidably connected to the inner wall of the arc-shaped reaction plate (79).

8. The high-purity quartz sand microwave chlorination device according to claim 2, wherein: The material control component (77) comprises: A wire tube (771), the outer surface of the wire tube (771) is threadedly connected to a ring block (772), both sides of the outer surface of the ring block (772) are fixedly connected to a pull rope (773), the outer surface of the pull rope (773) is slidably connected to a limit tube (774), and both sides of the outer surface of the limit tube (774) are fixedly connected to a fixing rod (775); A lifting plate (776) is provided, wherein a support spring (777) is fixedly connected to the bottom of the lifting plate (776).

9. The high-purity quartz sand microwave chlorination device according to claim 8, wherein: The wire tube (771) is sleeved and fixedly connected to the outer surface of the ventilation tube (74), the end of the pull rope (773) away from the ring block (772) is fixedly connected to the bottom of the lifting plate (776), and the top end of the fixing rod (775) is fixedly connected to the bottom of the arc-shaped reaction plate (79).

10. The high-purity quartz sand microwave chlorination device according to claim 9, wherein: The upper surface of the lifting plate (776) is mounted on the lower surface of the engaging block (761), the outer surface of the lifting plate (776) is slidably connected to the inner wall of the limiting tube (774), and the bottom end of the supporting spring (777) is fixedly connected to the inner wall of the limiting tube (774).

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