Device and method for preparing 5N high-purity fused quartz powder from natural quartz ore

Abstract

The invention provides a device and a method for preparing 5N high-purity fused quartz powder from natural quartz ore, and relates to the technical field of fused quartz powder equipment.The device comprises a furnace body, the furnace body is placed on the ground through a support, the furnace body is driven by a motor to rotate, and the motor is fixedly connected with the support; the crucible is arranged on the machine body and is used for melting quartz sand ore; the stabilizing device is arranged on the support and used for clamping and fixing a container for collecting the quartz sand ore molten liquid and preventing the container from displacing after being impacted, the container for collecting the molten liquid can be placed and reinforced by arranging the stabilizing device, and the situation that the container is damaged after the molten liquid is poured into the container is reduced; the device solves the problems that the container is impacted by the melt to displace, so that the poured melt deviates from the container, the melt cannot be accurately put into the container, and the melt collecting effect is affected, and the placing stability of the container is improved.

Description

Technical Field

[0001] This invention relates to the field of fused silica powder equipment technology, and in particular to an apparatus and method for preparing 5N high-purity fused silica powder from natural quartz ore. Background Technology

[0002] In the process of preparing fused silica powder from natural quartz ore, only high-purity fused silica powder at the 4N level can typically be obtained, making it difficult to achieve a purity of 5N. The aluminum content is the main factor affecting the final purity: while alkali metals and alkaline earth metals in fused silica can be deeply purified through high-temperature chlorination, reducing individual impurity elements to less than 1 ppm, elements such as titanium and aluminum are difficult to purify deeply through high-temperature chlorination. Furthermore, aluminum is one of the most significant impurities in natural quartz minerals, typically exceeding 10 ppm. During the melting process, aluminum is evenly distributed throughout the quartz powder, making it difficult to purify using various physicochemical methods. Therefore, the key to preparing 5N high-purity fused silica powder from natural quartz ore is reducing the aluminum content.

[0003] The existing equipment for preparing 5N high-purity fused silica powder from natural quartz ore involves adding a certain amount of mineralizing agent to a metal crucible, controlling the heating and holding time, and using a high-frequency alternating magnetic field to generate eddy currents in the metal crucible. Through the eddy current thermal effect, the quartz sand is heated to above 1700℃ and melted, causing the quartz ore to crystallize and form milky white crystal points during the melting process. The main impurity components of the crystal points are the mineralizing agent and its adsorbed aluminum elements. The equipment then separates the milky white crystal points from the transparent fused silica blocks to obtain fused silica blocks with low aluminum content. Finally, the fused silica blocks are further purified to obtain 5N high-purity fused silica powder.

[0004] However, the molten quartz inside the crucible will exert a certain impact force on the container when it is poured into the container. This may cause the container to shift after being impacted, causing the poured molten ore to deviate from the container. As a result, the molten ore may not be accurately poured into the container, affecting the molten ore collection effect and stability. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that when the molten quartz inside the crucible is poured into the container, it will exert a certain impact force on the container, which may cause the container to shift after being impacted. This will cause the poured molten ore to deviate from the container, resulting in the molten ore not being accurately poured into the container, thus affecting the molten ore collection effect and stability.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] In a first aspect, the present invention provides an apparatus for preparing high-purity N-type fused silica powder from natural quartz ore, comprising: a furnace body, the furnace body being placed on the ground via a support, wherein the furnace body is driven to rotate by a motor, and wherein the motor is fixedly connected to the support; a crucible, the crucible being disposed on the machine body for melting quartz sand ore; and a stabilizing device, the stabilizing device being disposed on the support for clamping and fixing a container for collecting molten quartz sand ore, preventing the container from shifting after being impacted.

[0008] Preferably, the stabilizing device includes: a support rod, which is detachably mounted on a bracket via an assembly assembly; a first clamping block, which is fixedly connected to the inner side of the support rod, wherein a screw is rotatably connected to the inner wall of the hole of the first clamping block via a bearing, wherein the screw is driven to rotate by a motor, and wherein the motor is fixedly connected to the first clamping block; and a second clamping block, which is placed inside the clamping rod, wherein the screw is threadedly connected to the inner wall of the hole of the second clamping block, and wherein the first clamping block and the second clamping block are arranged symmetrically to each other.

[0009] The effect achieved by the above-mentioned components is as follows: By setting up a stabilizing device, the container is first manually placed inside the clamping rod, so that the container is in contact with the first clamping block. At this time, the motor is started to drive the screw to rotate, so that the screw drives the second clamping block to move closer to the first clamping block during the rotation. As the second clamping block moves, it pushes the container closer to the first clamping block, and then works with the first clamping block to clamp and fix the container, thereby completing the placement and reinforcement of the container. This reduces the displacement of the container due to the impact of the molten liquid after it is poured into the container, which would cause the poured molten liquid to deviate from the container, resulting in the molten liquid not being accurately placed into the container and affecting the molten liquid collection effect, thus improving the placement stability of the container.

[0010] Preferably, multiple anti-slip strips are fixed to the adjacent sides of the first clamping block and the second clamping block, wherein the anti-slip strips are provided with multiple protrusions.

[0011] The effect achieved by the above components is that by setting anti-slip strips, the fit between the first clamp and the second clamp and the container surface can be increased, and the friction between them can be increased, reducing the possibility of the container sliding.

[0012] Preferably, a support rod is fixed to the side of the support rod away from the first clamping block, wherein the support rod is in contact with the ground.

[0013] The effect achieved by the above components is that by setting up support rods, the side of the support rod away from the first clamping block can be supported and reinforced, reducing the swaying of the side of the support rod away from the first clamping block.

[0014] Preferably, a rubber block is fixed to the side of the support rod away from the first clamping block, wherein the position of the rubber block corresponds to that of the second clamping block.

[0015] The effect achieved by the above components is that by setting rubber blocks, the moving second clamping block can be blocked, reducing the possibility of the second clamping block colliding with the front end of the support rod or screw.

[0016] Preferably, a slider is fixed to one side of the second clamping block, wherein the slider slides inside the hole of the support rod.

[0017] The effect achieved by the above components is that by setting the slider, the slider can slide inside the hole of the support rod and provide auxiliary limit for the second clamping block, thereby reducing the shaking or rotation of the second clamping block when it is driven by the screw.

[0018] Preferably, the assembly includes: a rectangular tube, which is fixedly connected to the bracket, wherein bolts are threaded onto the inner wall of the hole in the rectangular tube; and a hole rod, which is fixedly connected to the support rod, wherein the hole rod is placed inside the rectangular tube and fixed by bolts.

[0019] The effect achieved by the above components is as follows: by setting up the assembly components, the support rod is first moved manually to drive the hole rod to move. When the hole rod moves to the position where it is fully inserted into the rectangular tube, the inner wall of the hole rod coincides with the inner wall of the hole in the rectangular tube. At this time, the bolts are manually screwed into the holes in the rectangular tube and the hole rod to fix the position of the hole rod and the support rod, thereby completing the assembly and fixation between the support rod and the bracket. At the same time, the support rod can be disassembled later, improving the flexibility of the stabilizing device and the convenience of later maintenance.

[0020] Preferably, the nut of the bolt is provided with anti-slip texture, wherein the anti-slip texture is prismatic.

[0021] The effect achieved by the above components is that by setting anti-slip texture, the friction between the hand and the bolt can be increased, reducing the chance of slipping when manually turning the bolt.

[0022] Secondly, the present invention provides a method for preparing 5N high-purity fused silica powder from natural quartz ore as described in any of the above-mentioned methods. The method involves selecting natural quartz ore with an aluminum content not exceeding 30 ppm, crushing it into 38 pieces, washing it with high-purity water, and adding it to a crucible 2 inside a furnace body 1. A mineralizing agent solution is added in a certain proportion. The mineralizing agent is one or more compounds selected from sodium chloride, potassium chloride, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium sulfate, potassium sulfate, sodium fluoride, potassium fluoride, sodium nitrate, and potassium nitrate, and the amount added is 0.001% of the total quartz content. 1% of the minerals are dissolved in a small amount of water and added to crucible 2 inside furnace body 1; the heating time is 2-6 hours, the holding time is 1-24 hours, and after cooling, the fused quartz blocks are released and crushed into small pieces of 1-5 cm. They are then sorted in a color sorter to separate impurities, milky white spots, and completely transparent quartz blocks. The completely transparent quartz blocks are then crushed into 40-200 mesh quartz sand, acid-washed, and chlorinated at high temperature to obtain high-purity fused quartz sand with a purity of 5N. Finally, the high-purity fused quartz sand is crushed into micro powder with a median particle size of 1-100 µm in an air jet mill to obtain 5N high-purity fused quartz powder.

[0023] First, manually move the support rod to move the perforated rod. When the perforated rod is fully inserted into the rectangular tube, the inner wall of the perforated rod coincides with the inner wall of the hole in the rectangular tube. At this point, manually screw the bolts into the holes in the rectangular tube and the perforated rod to fix the position of the perforated rod and the support rod, thus completing the assembly and fixation between the support rod and the bracket. Then, manually place the container inside the clamping rod so that the container fits against the first clamping block. Start the motor to drive the screw to rotate, so that the screw drives the second clamping block to move closer to the first clamping block during the rotation. As the second clamping block moves, it pushes the container closer to the first clamping block, and then works with the first clamping block to clamp and fix the container, thus completing the placement and reinforcement of the container.

[0024] The beneficial effects of this invention are:

[0025] The apparatus and method for preparing 5N high-purity fused silica powder from natural quartz ore of the present invention can reinforce the container for collecting molten liquid by setting a stabilizing device, thereby reducing the displacement of the container due to the impact of the molten liquid after it is poured into the container, which would cause the poured molten liquid to deviate from the container and fail to be accurately placed into the container, thus affecting the molten liquid collection effect and improving the placement stability of the container. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 For the present invention Figure 1 A schematic diagram of a partial three-dimensional structure;

[0029] Figure 3 This is a three-dimensional structural diagram of the rectangular tube of the present invention;

[0030] Figure 4 This is a three-dimensional structural diagram of the support rod of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the first clamping block of the present invention.

[0032] Legend: 1. Furnace body; 2. Crucible; 3. Support; 4. Stabilizing device; 41. Support rod; 42. First clamping block; 43. Rubber block; 44. Support rod; 45. Screw; 46. Second clamping block; 47. Anti-slip strip; 48. Sliding block; 5. Assembly component; 51. Rectangular cylinder; 52. Bolt; 53. Anti-slip texture; 54. Hole rod. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Figure 1-5 The apparatus shown is for preparing 5N high-purity fused silica powder from natural quartz ore, comprising: a furnace body 1, which is placed on the ground via a support 3, wherein the furnace body 1 is driven to rotate by a motor, and the motor is fixedly connected to the support 3; a crucible 2, which is mounted on the furnace body for melting quartz sand ore; and a stabilizing device 4, which is mounted on the support 3 for clamping and fixing the container collecting the molten quartz sand ore to prevent the container from shifting after being impacted.

[0036] Figure 2-5The stabilizing device 4 shown includes: a support rod 41, which is detachably mounted on the bracket 3 via an assembly assembly 5; a first clamping block 42, which is fixedly connected to the inner side of the support rod 41, wherein a screw 45 is rotatably connected to the inner wall of the hole of the first clamping block 42 via a bearing, wherein the screw 45 is driven to rotate by a motor, and wherein the motor is fixedly connected to the first clamping block 42; and a second clamping block 46, which is placed inside the clamping rod, wherein the screw 45 is threadedly connected to the inner wall of the hole of the second clamping block 46, wherein the first clamping block 42 and the second clamping block 46 are arranged symmetrically to each other. By setting the stabilizing device 4, the container is first manually placed inside the clamping rod, so that the container... When the container is in contact with the first clamping block 42, the motor is started to drive the screw 45 to rotate. During the rotation of the screw 45, the screw 45 drives the second clamping block 46 to move closer to the first clamping block 42. During the movement of the second clamping block 46, the container is pushed closer to the first clamping block 42. Then, in conjunction with the first clamping block 42, the container is clamped and fixed, thereby completing the placement and reinforcement of the container. This reduces the displacement of the container due to the impact of the molten liquid after it is poured into the container, which would cause the poured molten liquid to deviate from the container and fail to be accurately placed into the container, thus affecting the molten liquid collection effect and improving the placement stability of the container.

[0037] Figure 2-5 Multiple anti-slip strips 47 are fixed to the adjacent sides of the first clamping block 42 and the second clamping block 46 shown. The anti-slip strips 47 have multiple protrusions. By setting the anti-slip strips 47, the adhesion between the first clamping block 42, the second clamping block 46 and the container surface can be increased, and the friction between the two can be increased to reduce the slippage of the container. A support rod 44 is fixed to the side of the support rod 41 away from the first clamping block 42. The support rod 44 is in contact with the ground. By setting the support rod 44, the side of the support rod 41 away from the first clamping block 42 can be supported and reinforced to reduce the shaking of the side of the support rod 41 away from the first clamping block 42.

[0038] Figure 2-5 A rubber block 43 is fixed to the side of the support rod 41 away from the first clamping block 42. The rubber block 43 corresponds to the position of the second clamping block 46. By setting the rubber block 43, the moving second clamping block 46 can be blocked, reducing the possibility of the second clamping block 46 colliding with the support rod 41 or the foremost end of the screw 45. A slider 48 is fixed to one side of the second clamping block 46. The slider 48 slides inside the hole of the support rod 41. By setting the slider 48, the slider 48 can slide inside the hole of the support rod 41 and provide auxiliary limit for the second clamping block 46, reducing the possibility of the second clamping block 46 shaking or rotating while being driven by the screw 45.

[0039] Figure 3The assembly component 5 shown includes: a rectangular tube 51, which is fixedly connected to the bracket 3, wherein the inner wall of the hole in the rectangular tube 51 is threaded with bolts 52; and a hole rod 54, which is fixedly connected to the support rod 41, wherein the hole rod 54 is placed inside the rectangular tube 51 and fixed by bolts 52. By setting up the assembly component 5, the support rod 41 is first manually moved to move the hole rod 54. When the hole rod 54 moves to the position where it is fully inserted into the rectangular tube 51, the inner wall of the hole rod 54 coincides with the inner wall of the hole in the rectangular tube 51. At this time, the bolts 52 are manually screwed into the holes of the rectangular tube 51 and the hole rod 54 to fix the position of the hole rod 54 and the support rod 41, thereby completing the assembly and fixation between the support rod 41 and the bracket 3. At the same time, the support rod 41 can be disassembled later, improving the flexibility of use of the stabilizing device 4 and the convenience of later maintenance.

[0040] Figure 3 The bolt 52 shown has anti-slip grooves 53 at the nut position. The anti-slip grooves 53 are diamond-shaped. By setting the anti-slip grooves 53, the friction between the hand and the bolt 52 can be increased, reducing the possibility of slipping when manually turning the bolt 52.

[0041] Working principle: Select natural quartz ore with an aluminum content not exceeding 30 ppm, crush it into 38 pieces, wash it with high-purity water, and add it to crucible 2 inside furnace body 1; add a mineralizing agent solution in a certain proportion. The mineralizing agent is one or more of the following compounds: sodium chloride, potassium chloride, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium sulfate, potassium sulfate, sodium fluoride, potassium fluoride, sodium nitrate, potassium nitrate, etc. The amount added is 0.001%-1% of the total quartz. The mineralizer is dissolved in a small amount of water and then added to the crucible inside furnace body 1. 2. Heating time: 2-6 hours; holding time: 1-24 hours; after cooling, release the fused silica block and crush it into 1-5cm pieces. Separate the impurities, milky spots and transparent quartz blocks in a color sorter. Then crush the transparent quartz blocks into 40-200 mesh quartz sand, and perform acid washing and high-temperature chlorination to obtain high-purity fused silica sand with a purity of 5N. Finally, crush the high-purity fused silica sand into micro powder with a median particle size of 1-100µm in an air jet mill to obtain 5N high-purity fused silica powder.

[0042] First, manually move the support rod 41 to move the perforated rod 54. When the perforated rod 54 is fully inserted into the rectangular tube 51, the inner wall of the perforated rod 54 coincides with the inner wall of the hole in the rectangular tube 51. At this time, manually screw the bolt 52 into the hole in the rectangular tube 51 and the perforated rod 54 to fix the position of the perforated rod 54 and the support rod 41, thus completing the assembly and fixation between the support rod 41 and the bracket 3. Then, manually place the container inside the clamping rod so that the container fits against the first clamping block 42. Then, start the motor to drive the screw 45 to rotate. During the rotation of the screw 45, the screw 45 drives the second clamping block 46 to move closer to the first clamping block 42. During the movement of the second clamping block 46, the container is pushed closer to the first clamping block 42, and then it works with the first clamping block 42 to clamp and fix the container, thus completing the placement and reinforcement of the container.

[0043] The apparatus and method for preparing 5N high-purity fused silica powder from natural quartz ore of the present invention can reinforce the container for collecting molten liquid by setting a stabilizing device, thereby reducing the displacement of the container due to the impact of the molten liquid after it is poured into the container, which would cause the poured molten liquid to deviate from the container and fail to be accurately placed into the container, thus affecting the molten liquid collection effect and improving the placement stability of the container.

[0044] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An apparatus for preparing 5N high-purity fused silica powder from natural quartz ore, characterized in that: include: Furnace body (1), the furnace body (1) is placed on the ground by a bracket (3), wherein the furnace body (1) is driven to rotate by a motor, wherein the motor is fixedly connected to the bracket (3); Crucible (2), which is set on the machine body, is used to melt quartz sand ore; Stabilizing device (4), which is set on the support (3), is used to clamp and fix the container for collecting molten quartz sand and prevent the container from shifting after being impacted.

2. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 1, characterized in that: The stabilizing device (4) includes a support rod (41), which is detachably mounted on the bracket (3) via an assembly assembly (5); The first clamping block (42) is fixedly connected to the inner side of the support rod (41). The inner wall of the hole of the first clamping block (42) is rotatably connected to the screw (45) through the bearing. The screw (45) is driven to rotate by the motor. The motor is fixedly connected to the first clamping block (42). The second clamping block (46) is placed inside the clamping rod, wherein the screw (45) is threadedly connected to the inner wall of the hole of the second clamping block (46), wherein the first clamping block (42) and the second clamping block (46) are arranged symmetrically to each other.

3. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 2, characterized in that: Multiple anti-slip strips (47) are fixed to the adjacent side of the first clamping block (42) and the second clamping block (46), wherein multiple protrusions are provided on the anti-slip strips (47).

4. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 2, characterized in that: The support rod (44) is fixed to the side of the support rod (41) away from the first clamping block (42), wherein the support rod (44) is in contact with the ground.

5. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 2, characterized in that: A rubber block (43) is fixed to the side of the support rod (41) away from the first clamping block (42), wherein the rubber block (43) corresponds to the position of the second clamping block (46).

6. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 2, characterized in that: A slider (48) is fixed to one side of the second clamp (46), wherein the slider (48) slides inside the hole of the support rod (41).

7. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 2, characterized in that: The assembly component (5) includes: a rectangular tube (51), which is fixedly connected to the bracket (3), wherein the inner wall of the hole of the rectangular tube (51) is threaded with bolts (52). Hole rod (54), which is fixedly connected to support rod (41), wherein the hole rod (54) is placed inside rectangular tube (51) and fixed by bolt (52).

8. The apparatus for preparing 5N high-purity fused silica powder from natural quartz ore according to claim 7, characterized in that: The nut of the bolt (52) is provided with anti-slip texture (53), wherein the anti-slip texture (53) is prismatic.

9. A method for preparing 5N high-purity fused silica powder from natural quartz ore according to any one of claims 1-8, characterized in that: Natural quartz ore with an aluminum content not exceeding 30 ppm is selected, crushed into 38 pieces, washed with high-purity water, and added to crucible 2 inside furnace body 1. A mineralizing agent solution is added in a certain proportion. The mineralizing agent is one or more of the following compounds: sodium chloride, potassium chloride, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium sulfate, potassium sulfate, sodium fluoride, potassium fluoride, sodium nitrate, and potassium nitrate. The amount added is 0.001%-1% of the total quartz content. The mineralizer is dissolved in a small amount of water and then added to crucible 2 inside furnace body 1. Heating time is 2-6 hours, holding time is 1-24 hours, and after cooling, the fused quartz blocks are crushed into 1-5cm pieces and sorted in a color sorter to separate impurities, milky white spots, and fully transparent quartz blocks. The fully transparent quartz blocks are then crushed into 40-200 mesh quartz sand, acid-washed, and chlorinated at high temperature to obtain high-purity fused quartz sand with a purity of 5N. Finally, the high-purity fused quartz sand is crushed into micro powder with a median particle size of 1-100µm in an air jet mill to obtain 5N high-purity fused quartz powder. First, manually move the support rod to move the perforated rod. When the perforated rod is fully inserted into the rectangular tube, the inner wall of the perforated rod coincides with the inner wall of the hole in the rectangular tube. At this point, manually screw the bolts into the holes in the rectangular tube and the perforated rod to fix the position of the perforated rod and the support rod, thus completing the assembly and fixation between the support rod and the bracket. Then, manually place the container inside the clamping rod so that the container fits against the first clamping block. Start the motor to drive the screw to rotate, so that the screw drives the second clamping block to move closer to the first clamping block during the rotation. As the second clamping block moves, it pushes the container closer to the first clamping block, and then works with the first clamping block to clamp and fix the container, thus completing the placement and reinforcement of the container.

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