A purification device and method for producing high-purity quartz sand

Abstract

The present invention relates to a purification device for producing high-purity quartz sand applied in the field of quartz sand processing and a method thereof, comprising a pickling tank body, the surface of the pickling tank body being connected to a supporting shaft frame through symmetrically arranged shaft rods, the top of the pickling tank body being connected to a tank cover, the top of the tank cover being penetrated by a long strip of feeding troughs, the inner wall of the tank cover being rotatably connected to a driving rotating rod, the surface of the tank cover being installed with a rotating motor, the interior of the pickling tank body being installed with a No. 1 screening hoop and a No. 2 screening hoop arranged at equal intervals, the tops of the two No. 2 screening hoops being installed with matching gear rings, the surface of the driving rotating rod being fixedly sleeved with two driving gears, the bottom of the pickling tank body being installed with a driving motor, and an adapter plate being arranged near the bottom of the pickling tank body, so as to reduce the accumulation thickness of the quartz sand so as to reduce the difficulty of cleaning, and at the same time, the surface of the quartz sand can be scrubbed and washed, thereby improving the degree of cleaning of residues on the surface of the quartz sand.

Description

Technical Field

[0001] The present invention relates to a purification device for producing high-purity quartz sand and a method thereof, and in particular to a purification device for producing high-purity quartz sand and a method thereof which are applied to the field of quartz sand processing. Background Art

[0002] Quartz sand is mainly used as filter material. Since it is a filter material, it must be cleaned in time after use, otherwise it will be blocked. When choosing a cleaning method, it is generally recommended to use acid washing. Quartz plate sand acid washing can completely use weak acid to remove the yellow skin, water rust and organic chromosomes on the mineral surface. The high-purity acid washing effect is different from that of ordinary quartz plate sand. Acid washing is to remove harmful elements in the quartz lattice system.

[0003] The specification of Chinese invention patent CN202310523434.9 discloses a high-purity quartz sand purification pickling equipment, including a pickling tank, a bearing base, a feeding device, an acid pumping device, a partition component, and a first receiving tank and a second receiving tank are opened on the surface of the partition component, and a first conduction component is arranged inside the first receiving tank, and a second conduction component is arranged inside the second receiving tank. The quartz sand is controlled to enter the first pickling chamber or the second pickling chamber by adjusting the state of the second conduction component, and the pickling liquid is controlled to flow directional between the first pickling chamber or the second pickling chamber, wherein the pickling liquid is controlled to flow directional, and the deep utilization is realized again, and the utilization efficiency of the waste acid is improved. The invention can make full use of the pickling liquid, improve the pickling effect, and reduce the pickling cost.

[0004] When the above-mentioned quartz sand purification pickling equipment is working, two pickling chambers are used to complete the rough washing and fine washing of the quartz sand, so as to improve the pickling effect of the quartz sand. However, in the actual operation process, the quartz sand in each pickling chamber is piled up together, resulting in poor immersion effect of the inner quartz sand, which is not conducive to achieving the purpose of comprehensive pickling of the quartz sand. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to solve the problem that the inner quartz sand of the mixed stacked quartz sand cannot be effectively cleaned during acid washing.

[0006] In order to solve the above problems, the present invention provides a purification device for high-purity quartz sand production, comprising a pickling tank body, the surface of the pickling tank body is connected to a supporting shaft frame through symmetrically arranged shaft rods, the top of the pickling tank body is connected to a tank cover, a long strip-shaped feeding trough is arranged through the top of the tank cover, the inner wall of the tank cover is rotatably connected to a driving rotating rod, a rotating motor is installed on the surface of the tank cover, and the output end of the rotating motor is connected to one end of the driving rotating rod;

[0007] The pickling tank body is equipped with a No. 1 screening hoop and a No. 2 screening hoop arranged at equal intervals, and leak holes are penetrated inside the No. 1 screening hoop and the No. 2 screening hoop. Matching gear rings are installed on the tops of the two No. 2 screening hoops. Two driving gears are fixedly sleeved on the surface of the driving rotating rod, and the two driving gears are respectively meshed with the two gear rings;

[0008] A driving motor is installed at the bottom of the pickling tank body, and an adapter plate is arranged near the bottom of the pickling tank body. The output end of the driving motor is connected to the bottom of the adapter plate, the top of the adapter plate is fixedly connected to the bottom of the No. 1 screening hoop, and the top of the adapter plate is in sliding contact with the bottom of the No. 2 screening hoop.

[0009] In the above-mentioned purification equipment for producing high-purity quartz sand, the accumulation thickness of quartz sand is reduced to reduce the difficulty of cleaning, and at the same time, the surface of quartz sand can be scrubbed to improve the cleaning degree of residues on the surface of quartz sand.

[0010] As a further improvement of the present application, there is a vertical gap between the bottom of the adapter plate and the inner bottom wall of the pickling tank body, and a drain pipe located on one side of the drive motor is arranged through the bottom of the pickling tank body, and the drain pipe is located below the bottom of the adapter plate.

[0011] As a further improvement of the present application, the projections of the two ends of the feed trough cross section in the vertical direction are respectively located on the inner side of the innermost No. 2 screening hoop and the inner side of the outermost No. 1 screening hoop, and the length value of the feed trough cross section is smaller than the radius value of the outermost No. 1 screening hoop.

[0012] As a further improvement of the present application, the No. 1 screening hoop and the No. 2 screening hoop rotate in opposite directions, and the surfaces of the No. 1 screening hoop and the No. 2 screening hoop are covered with matching rubber sleeves, and the rubber sleeves are made of corrosion-resistant rubber material.

[0013] As a further improvement of the present application, the tank cover and the pickling tank body are detachably mounted, and the distance between the bottom of the drive motor and the bottom of the support shaft frame is not less than half of the height of the pickling tank body itself.

[0014] As a further improvement of the present application, a control processing system is also included, which includes a detection module and a controller, wherein the detection module includes a pH detector, a liquid level detector and a turbidity detector installed on the inner wall of the pickling tank, and the controller is connected to the drive motor and the rotating motor signal.

[0015] As a further improvement of the present application, a method for using a purification device for producing high-purity quartz sand comprises the following working steps:

[0016] S1, putting the quartz sand raw material to be processed into the interior of the pickling tank through the feed trough, and then putting the pickling liquid into the interior of the pickling tank until the quartz sand is immersed;

[0017] S2, starting the driving motor and the rotating motor to drive the No. 1 screening hoop and the No. 2 screening hoop to rotate in the opposite direction, and scrubbing the quartz sand inside the No. 1 screening hoop and the No. 2 screening hoop;

[0018] S3, the cleaned stains are discharged through the leak holes on the surface of the No. 1 screening hoop and the No. 2 screening hoop, and then the sewage pipe is opened to discharge the cleaned sewage into the pickling tank;

[0019] S4, add deionized water to the pickling tank, repeat S2, clean the pickling residue on the surface of the quartz sand, after the set cleaning time, drain the pickling tank and use the pH detector to detect the pH value of the discharged water, and replenish deionized water for cleaning after the drainage is completed until the pH value of the discharged water is within the range of 6.7-7.2, then remove the tank cover, tilt the pickling tank and pour out the quartz sand in it, and carry out subsequent drying, screening, color sorting and packaging.

[0020] As another improvement of the present application, an ellipsoidal block is arranged in the middle of the adjacent No. 1 screening hoop and No. 2 screening hoop, and a linkage rod is passed through and fixedly connected to the interior of each ellipsoidal block. A lead-out groove located on one side of the feed trough is passed through the top of the tank cover, and the top end of the linkage rod passes through the lead-out groove and extends to the top of the tank cover, a top frame bar is installed on the top of the linkage rod, a hydraulic cylinder is installed on the top of the tank cover, and the output end of the hydraulic cylinder is fixedly connected to the surface of the top frame bar through an adapter with an L-shaped cross-section.

[0021] As another improved supplement of the present application, a restraining rod is installed through the center of the ellipsoidal block, and both ends of the restraining rod are in contact with the surfaces of the No. 1 screening hoop and the No. 2 screening hoop through rolling balls.

[0022] As another improved supplement of the present application, the ellipsoidal block is made of high-strength compression-resistant steel, and the ellipsoidal block is the same height as the No. 1 screening hoop and the No. 2 screening hoop.

[0023] To summarize, the quartz sand to be cleaned inside the pickling tank is separated and cleaned by using the No. 1 screening hoop and the No. 2 screening hoop, thereby reducing the accumulation thickness of the quartz sand. By rotating the No. 1 screening hoop and the No. 2 screening hoop in reverse, the surface of the quartz sand between the No. 1 screening hoop and the No. 2 screening hoop is scrubbed to improve the cleaning degree of the residue on the surface of the quartz sand. In addition, the accumulation thickness of the quartz sand accumulated in the No. 1 screening hoop and the No. 2 screening hoop is dynamically adjusted in combination with the ellipsoidal block, thereby comprehensively improving the cleaning effect of the quartz sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0025] Figure 2 This is a diagram showing the internal structure of the pickling tank according to the first and second embodiments of the present application;

[0026] Figure 3 For this application Figure 2 A in the enlarged view;

[0027] Figure 4 A top view of the pickling tank and the feed trough of the first and second embodiments of the present application;

[0028] Figure 5 This is a side view of the pickling tank body of the first and second embodiments of the present application;

[0029] Figure 6 This is a schematic diagram of the state in which the No. 1 screening hoop and the No. 2 screening hoop of the first and second embodiments of the present application rotate in opposite directions;

[0030] Figure 7 This is a schematic diagram of the installation of the pickling tank and the ellipsoidal stand according to the second embodiment of the present application;

[0031] Figure 8 This is an installation diagram of a hydraulic cylinder, a linkage rod and an ellipsoidal stand block according to a second embodiment of the present application;

[0032] Fig. 9 This is a state diagram of the ellipsoidal block of the second embodiment of the present application being adjusted to be located between the No. 1 screening hoop and the No. 2 screening hoop to pile up quartz sand.

[0033] Description of the numbers in the figure:

[0034] 1. Pickling tank body; 2. Support shaft frame; 3. Tank cover; 31. Feed chute; 32. Driving gear; 4. Driving motor; 5. Rotating motor; 6. No. 1 screening hoop; 7. Adapter plate; 8. No. 2 screening hoop; 9. Gear ring; 10. Ellipsoidal block; 11. Hydraulic cylinder; 12. Linkage rod; 13. Top frame bar. DETAILED DESCRIPTION

[0035] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0036] The first implementation method:

[0037] Figure 1-6A purification device for high-purity quartz sand production is shown, comprising a pickling tank body 1, the surface of the pickling tank body 1 is connected to a supporting shaft frame 2 through symmetrically arranged shaft rods, the top of the pickling tank body 1 is connected to a tank cover 3, a long strip-shaped feeding trough 31 is arranged through the top of the tank cover 3, the inner wall of the tank cover 3 is rotatably connected to a driving rotating rod, a rotating motor 5 is installed on the surface of the tank cover 3, and the output end of the rotating motor 5 is connected to one end of the driving rotating rod;

[0038] The pickling tank body 1 is provided with a No. 1 screening hoop 6 and a No. 2 screening hoop 8 arranged at equal intervals, and leak holes are penetrated inside the No. 1 screening hoop 6 and the No. 2 screening hoop 8. Matching gear rings 9 are installed on the tops of the two No. 2 screening hoop 8. Two driving gears 32 are fixedly sleeved on the surface of the driving rotating rod, and the two driving gears 32 are respectively meshed with the two gear rings 9;

[0039] A driving motor 4 is installed at the bottom of the pickling tank body 1, and an adapter plate 7 is arranged near the bottom of the pickling tank body 1. The output end of the driving motor 4 is connected to the bottom of the adapter plate 7, the top of the adapter plate 7 is fixedly connected to the bottom of the No. 1 screening hoop 6, and the top of the adapter plate 7 is in sliding contact with the bottom of the No. 2 screening hoop 8.

[0040] Specifically, when the quartz sand is pickled, the quartz sand to be pickled needs to be firstly put into the gap between the plurality of No. 1 screening hoops 6 and No. 2 screening hoops 8 in the pickling tank body 1 through the feed trough 31 to form a separate storage state, and then the pickling liquid is continuously put into the pickling tank body 1 until the quartz sand in the pickling tank body 1 is immersed;

[0041] The top of the adapter plate 7 is provided with an annular groove corresponding to the No. 2 screening hoop 8, and the annular groove is in sliding contact with the bottom of the No. 2 screening hoop 8. Therefore, when the adapter plate 7 rotates, the No. 2 screening hoop 8 and the adapter plate 7 do not rotate in the same direction because there is no constraint connection relationship between them. They can rotate normally under the drive of the gear ring 9.

[0042] The driving motor 4 and the rotating motor 5 are turned on. Under the action of the rotating motor 5, the driving gear 32 is driven to rotate, and then the gear ring 9 meshing with it is driven to rotate, and then the No. 2 screening hoop 8 is driven to rotate. Since the adapter plate 7 is fixedly connected to the No. 1 screening hoop 6, when the driving motor 4 starts to drive the adapter plate 7 to rotate, the No. 1 screening hoop 6 also rotates. The rotation directions of the driving motor 4 and the rotating motor 5 are controlled so that the rotation directions of the No. 1 screening hoop 6 and the No. 2 screening hoop 8 are opposite. The quartz sand in the pickling tank body 1 can be rotated and cleaned at the same time, and the quartz sand located between the No. 1 screening hoop 6 and the No. 2 screening hoop 8 can be rubbed and washed with the surfaces of the No. 1 screening hoop 6 and the No. 2 screening hoop 8, thereby enhancing the pickling effect of the quartz sand.

[0043] There is a vertical gap between the bottom of the adapter plate 7 and the inner bottom wall of the pickling tank body 1 . A sewage pipe located on one side of the drive motor 4 is arranged through the bottom of the pickling tank body 1 , and the sewage pipe is located below the bottom of the adapter plate 7 .

[0044] Specifically, the drain pipe is used to discharge the sewage after cleaning in the pickling tank body 1. After the drainage is completed, the tank cover 3 is removed from the top of the pickling tank body 1, and then with the assistance of the supporting shaft frame 2, the pickling tank body 1 is pushed so that the pickling tank body 1 is tilted to dump the quartz sand inside.

[0045] The vertical projections of both ends of the cross section of the feed trough 31 are respectively located inside the innermost No. 2 screening hoop 8 and inside the outermost No. 1 screening hoop 6 , and the length of the cross section of the feed trough 31 is smaller than the radius of the outermost No. 1 screening hoop 6 .

[0046] Specifically, the size design of the feed trough 31 can ensure that when quartz sand is added, the added quartz sand is located in the gap between the No. 1 screening hoop 6 and the No. 2 screening hoop 8, so as to form a separated storage to reduce the cross-sectional thickness of the quartz sand accumulation during pickling.

[0047] The first screening hoop 6 and the second screening hoop 8 rotate in opposite directions, and the surfaces of the first screening hoop 6 and the second screening hoop 8 are both covered with matching rubber sleeves, and the rubber sleeves are made of corrosion-resistant rubber material.

[0048] Specifically, the use of the rubber sleeve can enhance the scrubbing and removal effect of residual stains on the surface of the quartz sand, while the corrosion-resistant material can delay the aging of the rubber sleeve caused by contact with the pickling solution and extend the service life of the rubber sleeve.

[0049] The tank cover 3 and the pickling tank body 1 are detachably mounted, and the distance between the bottom of the driving motor 4 and the bottom of the supporting shaft frame 2 is not less than half of the height of the pickling tank body 1 itself.

[0050] Specifically, the distance between the bottom of the driving motor 4 and the bottom of the supporting shaft frame 2 makes it possible to subsequently dump the pickling tank body 1 to discharge the internal quartz sand.

[0051] It also includes a control processing system, which includes a detection module and a controller, wherein the detection module includes a pH detector, a liquid level detector and a turbidity detector installed on the inner wall of the pickling tank 1, and the controller is connected to the drive motor 4 and the rotating motor 5 by signal.

[0052] Specifically, the pH detector can be used to monitor the pH value of the pickling solution in the pickling tank 1 in real time during the pickling process, so as to maintain the pickling function in the pickling solution;

[0053] The liquid level detector is used to detect the value of the liquid level inside the pickling tank 1, that is, the accumulation height value of the quartz sand, and is used to coordinate the adjustment of the output torque of the driving motor 4 and the rotating motor 5;

[0054] At the same time, the turbidity detector can detect the turbidity of the pickling liquid during the cleaning process in the pickling tank 1 in order to judge the cleaning process. When the turbidity is not obvious, the torque of the driving motor 4 and the rotating motor 5 can be adjusted to form a suitable differential scrubbing effect. The scrubbing effect can be adjusted in real time during the pickling process to achieve a better scrubbing purpose.

[0055] A method for using a purification device for producing high-purity quartz sand comprises the following working steps:

[0056] S1, feeding the quartz sand raw material to be processed into the interior of the pickling tank body 1 through the feed trough 31, and then feeding the pickling liquid into the interior of the pickling tank body 1 until the quartz sand is immersed;

[0057] S2, start the driving motor 4 and the rotating motor 5, drive the No. 1 screening hoop 6 and the No. 2 screening hoop 8 to rotate in the opposite direction, and scrub the quartz sand inside the No. 1 screening hoop 6 and the No. 2 screening hoop 8;

[0058] S3, the cleaned stains are discharged through the leak holes on the surface of the No. 1 screening hoop 6 and the No. 2 screening hoop 8, and then the sewage pipe is opened to discharge the cleaned sewage into the pickling tank 1;

[0059] S4, add deionized water to the pickling tank 1, repeat S2, clean the pickling residue on the surface of the quartz sand, after the set cleaning time, drain the water in the pickling tank 1 and use the pH detector to detect the pH value of the discharged water, and replenish deionized water for cleaning after the drainage is completed, until the pH value of the discharged water is within the range of 6.7-7.2, then remove the tank cover 3, tilt the pickling tank 1 and pour out the quartz sand in it, and carry out subsequent drying, screening, color sorting and packaging.

[0060] The second implementation method:

[0061] Figure 7-9 It is shown that an ellipsoidal block 10 is arranged in the middle of the adjacent No. 1 screening hoop 6 and No. 2 screening hoop 8, and a linkage rod 12 is passed through and fixedly connected to the interior of each ellipsoidal block 10. A lead-out groove located on one side of the feed groove 31 is passed through the top of the tank cover 3, and the top end of the linkage rod 12 passes through the lead-out groove and extends to the top of the tank cover 3. A top frame bar 13 is installed on the top of the linkage rod 12, and a hydraulic cylinder 11 is installed on the top of the tank cover 3, and the output end of the hydraulic cylinder 11 is fixedly connected to the surface of the top frame bar 13 through an adapter with an L-shaped cross-section.

[0062] A restraining rod 14 is installed through the center of the ellipsoidal block 10 , and both ends of the restraining rod 14 are in contact with the surfaces of the No. 1 screening hoop 6 and the No. 2 screening hoop 8 through rolling balls.

[0063] The ellipsoidal block 10 is made of high-strength compression-resistant steel, and the ellipsoidal block 10 is at the same height as the No. 1 screening hoop 6 and the No. 2 screening hoop 8 .

[0064] Specifically, there is a certain thickness of quartz sand between the No. 1 screening hoop 6 and the No. 2 screening hoop 8. In order to strengthen the comprehensive cleaning of the quartz sand between the No. 1 screening hoop 6 and the No. 2 screening hoop 8, during cleaning, the linkage rod 12 is driven to move back and forth with the assistance of the hydraulic cylinder 11, thereby driving the ellipsoidal block 10 to move in the gap between the No. 1 screening hoop 6 and the No. 2 screening hoop 8, and the quartz sand accumulated in the gap between the No. 1 screening hoop 6 and the No. 2 screening hoop 8 is subjected to active extrusion treatment, so that the quartz sand in the wrapped state in the quartz sand accumulated in the No. 1 screening hoop 6 and the No. 2 screening hoop 8 is adjusted to the scrubbing surface (that is, the quartz sand originally accumulated on the inside is squeezed to the outside of the accumulation by the ellipsoidal block 10, such as Fig. 9 As shown, a is quartz sand accumulated on the inside, and b is quartz sand accumulated on the surface), so that the quartz sand can be fully cleaned.

[0065] The ends of the constraint rod 14 are in contact with the surfaces of the No. 1 screening hoop 6 and the No. 2 screening hoop 8 through the rolling ball. Therefore, when the No. 2 screening hoop 8 rotates, the constraint rod 14 can maintain a relatively static state (it is clamped between the No. 1 screening hoop 6 and the No. 2 screening hoop 8 but because it has no fixed connection with the No. 1 screening hoop 6 and the No. 2 screening hoop 8, it will not rotate with the two), thereby constraining the ellipsoid block 10 with a certain height to ensure that the amplitude of the displacement of the ellipsoid block 10 during the horizontal movement remains consistent from top to bottom.

[0066] Different from the first embodiment, this embodiment adds an ellipsoidal block 10 and related structures to dynamically adjust the quartz sand accumulation cleaning section originally reduced by the No. 1 screening hoop 6 and the No. 2 screening hoop 8, thereby achieving a more comprehensive cleaning effect on the basis of scrubbing.

[0067] In summary, the present invention utilizes the No. 1 screening hoop 6 and the No. 2 screening hoop 8 to separate and clean the quartz sand to be cleaned inside the pickling tank body 1, thereby reducing the accumulation thickness of the quartz sand, and by rotating the No. 1 screening hoop 6 and the No. 2 screening hoop 8 in the opposite direction, a scrubbing effect is achieved on the surface of the quartz sand between the No. 1 screening hoop 6 and the No. 2 screening hoop 8, thereby improving the cleaning degree of the residue on the surface of the quartz sand, and combining with the ellipsoidal block 10 to dynamically adjust the accumulation thickness of the quartz sand accumulated in the No. 1 screening hoop 6 and the No. 2 screening hoop 8, thereby comprehensively improving the cleaning effect of the quartz sand.

[0068] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A purification device for producing high-purity quartz sand, comprising a pickling tank (1), characterized in that: The surface of the pickling tank body (1) is connected to a supporting shaft frame (2) via symmetrically arranged shaft rods; the top of the pickling tank body (1) is connected to a tank cover (3); a long strip-shaped feed trough (31) is arranged through the top of the tank cover (3); the inner wall of the tank cover (3) is rotatably connected to a driving rotating rod; a rotating motor (5) is installed on the surface of the tank cover (3), and the output end of the rotating motor (5) is connected to one end of the driving rotating rod; The pickling tank body (1) is provided with a first screening hoop (6) and a second screening hoop (8) arranged at equal intervals, and leak holes are provided inside the first screening hoop (6) and the second screening hoop (8), and matching gear rings (9) are installed on the tops of the two second screening hoop (8), and two driving gears (32) are fixedly sleeved on the surface of the driving rotating rod, and the two driving gears (32) are respectively meshed with the two gear rings (9); A driving motor (4) is installed at the bottom of the pickling tank (1), an adapter plate (7) is arranged near the bottom of the pickling tank (1), and the output end of the driving motor (4) is connected to the bottom of the adapter plate (7), the top of the adapter plate (7) is fixedly connected to the bottom of the first screening hoop (6), and the top of the adapter plate (7) is in sliding contact with the bottom of the second screening hoop (8); An ellipsoidal block (10) is arranged in the middle of the adjacent No. 1 screening hoop (6) and No. 2 screening hoop (8), and a linkage rod (12) is fixedly connected to the interior of each of the ellipsoidal blocks (10). A lead-out groove located on one side of the feed groove (31) is arranged through the top of the tank cover (3), and the top end of the linkage rod (12) passes through the lead-out groove and extends to the top of the tank cover (3). A top frame bar (13) is installed on the top of the linkage rod (12), and a hydraulic cylinder (11) is installed on the top of the tank cover (3), and the output end of the hydraulic cylinder (11) is fixedly connected to the surface of the top frame bar (13) through an adapter with an L-shaped cross section; A restraining rod (14) is installed through the center of the ellipsoidal block (10), and two ends of the restraining rod (14) are in contact with the surfaces of the first screening hoop (6) and the second screening hoop (8) through rolling balls; The ellipsoidal block (10) is made of high-strength compression-resistant steel, and the ellipsoidal block (10) is at the same height as the first screening hoop (6) and the second screening hoop (8).

2. A purification equipment for producing high-purity quartz sand according to claim 1, characterized in that: A vertical gap exists between the bottom of the adapter plate (7) and the inner bottom wall of the pickling tank body (1), and a sewage discharge pipe located on one side of the drive motor (4) is arranged through the bottom of the pickling tank body (1), and the sewage discharge pipe is located below the bottom of the adapter plate (7).

3. A purification equipment for producing high-purity quartz sand according to claim 1, characterized in that: The projections of the two ends of the cross section of the feed trough (31) in the vertical direction are respectively located on the inner side of the innermost No. 2 screening hoop (8) and the inner side of the outermost No. 1 screening hoop (6), and the length of the cross section of the feed trough (31) is smaller than the radius of the outermost No. 1 screening hoop (6).

4. A purification equipment for producing high-purity quartz sand according to claim 1, characterized in that: The first screening hoop (6) and the second screening hoop (8) rotate in opposite directions, and the surfaces of the first screening hoop (6) and the second screening hoop (8) are both covered with matching rubber sleeves, and the rubber sleeves are made of corrosion-resistant rubber material.

5. A purification equipment for producing high-purity quartz sand according to claim 1, characterized in that: The tank cover (3) and the pickling tank body (1) are detachably mounted, and the distance between the bottom of the drive motor (4) and the bottom of the support shaft frame (2) is not less than half of the height of the pickling tank body (1).

6. A purification equipment for producing high-purity quartz sand according to claim 1, characterized in that: It also includes a control processing system, which includes a detection module and a controller, wherein the detection module includes a pH detector, a liquid level detector and a turbidity detector installed on the inner wall of the pickling tank (1), and the controller is connected to the drive motor (4) and the rotating motor (5) by signal.

7. A method for using the purification equipment for producing high-purity quartz sand according to any one of claims 1-2, characterized in that: The following steps are included: S1, feeding the quartz sand raw material to be processed into the interior of the pickling tank (1) through the feed trough (31), and then feeding the pickling liquid into the interior of the pickling tank (1) until the quartz sand is immersed; S2, starting the driving motor (4) and the rotating motor (5), driving the No. 1 screening hoop (6) and the No. 2 screening hoop (8) to rotate in the opposite direction, and scrubbing the quartz sand inside the No. 1 screening hoop (6) and the No. 2 screening hoop (8); S3, the cleaned dirt is discharged through the leak holes on the surface of the No. 1 screening hoop (6) and the No. 2 screening hoop (8), and then the sewage pipe is opened to discharge the cleaned sewage out of the interior of the pickling tank (1); S4. Pour deionized water into the pickling tank (1), and repeat S2 to clean the pickling residue on the surface of the quartz sand.

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