Device and method for removing iron-containing impurities in semiconductor quartz sand processing

Abstract

The present invention relates to the technical field of quartz sand production, and specifically to a device and method for removing iron-containing impurities in the processing of quartz sand for semiconductors. The impurity removal device includes a frame and a pickling barrel arranged on the frame. The frame is annular as a whole, and a hinge is provided at the bottom of the pickling barrel. The pickling barrel is hinged to the frame through the hinge, and a connecting piece connected to the pickling barrel is provided on the frame. A plurality of connecting pieces are distributed in a ring array about the axis of the frame, and a telescopic control mechanism for controlling the telescopic extension of the connecting piece is also provided on the frame; in the working state, the telescopic control mechanism controls the plurality of connecting pieces to shrink and reset in turn in a clockwise or counterclockwise direction, and the pickling barrel shakes under the pulling force of the connecting piece. The present invention realizes the function of controlling the shaking of the pickling barrel, so as to achieve the effect of quickly mixing the quartz sand in the pickling barrel with the pickling liquid, and also significantly improves the efficiency of removing impurities containing iron, and solves the problem that the stirring rod inside the traditional pickling equipment is easily corroded by the pickling liquid.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand production, and in particular to a device and method for removing iron-containing impurities in processing quartz sand for semiconductors. Background Art

[0002] When quartz sand is formed in nature, it may coexist with minerals containing iron, such as magnetite and hematite. The iron in these minerals will exist in quartz sand in different forms. In industries that require high-purity quartz sand, iron impurities in quartz sand are an important concern, especially in fields such as electronic materials and optical fiber communications. Traditional magnetic separators can effectively separate magnetic iron impurities, but are less effective for non-magnetic iron impurities.

[0003] To this end, Chinese patent publication number CN215161053U discloses a device for efficiently removing iron-containing impurities in quartz sand, which utilizes acid to react with iron to convert iron impurities into free iron or ferrous ions, thereby efficiently removing iron-containing impurities from the surface of quartz sand; utilizing a nitrogen supply pipe to connect nitrogen to the outside and flow through a venturi tube, the hydrogen generated in the pickling kettle body can be sucked out and mixed with the nitrogen, thereby reducing the concentration of hydrogen and helping to improve the safety of the device; the cover opening member is connected to the sealing cover 2, and there is no need to manually open the cover when sampling, which can prevent the hydrogen in the pickling kettle body from being sprayed out with acid water and injuring workers.

[0004] However, in order to improve the removal quality and efficiency of iron impurities, the existing pickling equipment needs to be equipped with a stirring mechanism for stirring the pickling solution and quartz sand in the pickling equipment, and in order to prevent the stirring mechanism from being corroded by the pickling solution, a sheath needs to be provided outside the stirring mechanism. However, under continuous operation, the sheath is easily damaged due to the friction between the quartz sand and the sheath, which causes the stirring mechanism to be corroded by the pickling solution, which not only affects the stirring effect, but also causes other types of impurities to be mixed into the quartz sand. Summary of the invention

[0005] In view of the above problems, a device and method for removing iron-containing impurities in semiconductor quartz sand processing are provided. The problem that the stirring rod inside the traditional pickling equipment is easily corroded by the pickling liquid is solved through a frame, a pickling cylinder, a hinge, a connecting piece and a telescopic control mechanism.

[0006] In order to solve the problems of the prior art, the present invention provides a device for removing iron-containing impurities for processing quartz sand for semiconductors, comprising a frame and a pickling barrel arranged on the frame, the frame is ring-shaped as a whole, a hinge is provided at the bottom of the pickling barrel, the pickling barrel is hinged to the frame through the hinge, and a connecting piece connected to the pickling barrel is provided on the frame, at least three connecting pieces are provided, and the multiple connecting pieces are distributed in a ring array about the axis of the frame, and a telescopic control mechanism for controlling the telescopic extension of the connecting piece is also provided on the frame; in a working state, the telescopic control mechanism controls the multiple connecting pieces to shrink and reset in turn in a clockwise or counterclockwise direction, and the pickling barrel shakes under the pulling force of the connecting piece.

[0007] Preferably, the connecting member includes a third articulated seat, a first connecting rod and a universal connector, the two ends of the universal connector are respectively connected to the third articulated seat and the pickling cylinder, one end of the first connecting rod is hinged to the third articulated seat, and the other end of the first connecting rod is transmission connected to the telescopic control mechanism.

[0008] Preferably, the telescopic control mechanism includes a second connecting rod and a third connecting rod, one end of the second connecting rod is rotatably connected to the frame, and a straight groove is provided on the second connecting rod, and a first guide shaft slidably matched with the straight groove is provided on the end of the first connecting rod away from the third hinge seat, the third connecting rod is connected to the second connecting rod, and a telescopic driving mechanism for driving the third connecting rod to move is provided on the frame.

[0009] Preferably, one end of the third connecting rod away from the telescopic driving mechanism is rotatably connected to the first guide shaft.

[0010] Preferably, both ends of the second connecting rod are rotatably connected to one end of the third connecting rod away from the telescopic driving mechanism and the frame respectively.

[0011] Preferably, the telescopic drive mechanism includes a connecting ring, a mounting ring and a rotating drive assembly; the connecting ring is slidably mounted on the frame, an arc-shaped slide groove is provided on the connecting ring, a connecting seat is rotatably mounted on one end of the third connecting rod away from the second connecting rod, the connecting seat is slidably matched with the arc-shaped slide groove, the mounting ring is rotatably mounted on the frame, and the axis of the mounting ring is colinear with the axis of the frame, the rotating drive assembly is used to drive the mounting ring to rotate, a driving shaft is provided on the mounting ring, the driving shaft presses the connecting ring against the frame, and when the rotating drive assembly drives the mounting ring to rotate, the driving shaft drives the connecting ring to swing.

[0012] Preferably, a roller is rotatably mounted on the driving shaft, and the roller is rollingly connected to the connecting ring.

[0013] Preferably, the hinged member comprises a first hinged seat and a second hinged seat, the first hinged seat and the second hinged seat are respectively mounted on the frame and the pickling cylinder, and the first hinged seat and the second hinged seat are rotatably connected.

[0014] Preferably, at least three supporting legs are provided on the frame, and a supporting ring for connecting a plurality of supporting legs simultaneously is provided at the bottom of the supporting legs, and the plurality of supporting legs are distributed in a circular array about the axis of the supporting ring.

[0015] A method for removing iron-containing impurities in quartz sand processing for semiconductors comprises the following steps: S1, injecting pickling liquid and quartz sand into a pickling barrel; S2, controlling a plurality of connecting parts to be retracted and retracted in sequence clockwise or counterclockwise through a telescopic control mechanism, wherein the connecting parts pull the pickling barrel and shake the pickling liquid and quartz sand in the pickling barrel.

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

[0017] 1. The present invention realizes the function of controlling the shaking of the pickling barrel through the frame, the pickling barrel, the hinge, the connecting piece and the telescopic control mechanism, so as to achieve the effect of quickly mixing the quartz sand in the pickling barrel with the pickling liquid, and also significantly improves the impurity removal efficiency of iron-containing impurities, and solves the problem that the stirring rod inside the traditional pickling equipment is easily corroded by the pickling liquid.

[0018] 2. The present invention realizes the function of pulling the pickling barrel through the second hinged seat, the first connecting rod and the universal connector, and at the same time achieves the effect of stably supporting and connecting the pickling barrel through the connecting rod structure, thereby avoiding unnecessary deflection of the pickling barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional schematic diagram of a device for removing iron-containing impurities in quartz sand processing for semiconductors.

[0020] Figure 2 It is a front view of a device for removing iron impurities in quartz sand processing for semiconductors during the shaking process.

[0021] Figure 3 The invention is a three-dimensional schematic diagram of a connecting piece, a telescopic control mechanism and a telescopic driving mechanism in a device for removing iron-containing impurities in quartz sand processing for semiconductors.

[0022] Figure 4 The invention is a three-dimensional schematic diagram of a mounting seat, a connecting piece and a telescopic control mechanism in a device for removing iron-containing impurities processed by quartz sand for semiconductors.

[0023] Figure 5 The present invention is a three-dimensional schematic diagram of a first embodiment of a telescopic control mechanism in a device for removing iron-containing impurities in semiconductor quartz sand processing.

[0024] Figure 6 The present invention is a three-dimensional schematic diagram of a second embodiment of a telescopic control mechanism in a device for removing iron-containing impurities in semiconductor quartz sand processing.

[0025] Figure 7The present invention is a three-dimensional schematic diagram of a connector, a telescopic control mechanism and a rotary drive assembly in a device for removing iron-containing impurities in quartz sand processing for semiconductors.

[0026] Figure 8 yes Figure 7 A local enlarged schematic diagram of point A in the middle.

[0027] Fig. 9 The present invention is a three-dimensional exploded schematic diagram of a telescopic drive mechanism in a device for removing iron-containing impurities in quartz sand processing for semiconductors.

[0028] Fig.10 The present invention is a three-dimensional schematic diagram of a bottom plate and hinged parts in a device for removing iron-containing impurities processed by quartz sand for semiconductors.

[0029] The numbers in the figure are: 1-frame; 11-pickling cylinder; 111-bottom plate; 1111-guide groove; 12-hinge; 121-first hinge seat; 122-second hinge seat; 13-mounting seat; 14-leg; 141-support ring; 2-connecting piece; 21-third hinge seat; 22-first connecting rod; 221-first guide shaft; 23-universal connector; 3-telescopic control mechanism; 31-second connecting rod; 311-straight groove; 32-third connecting rod; 321-second guide shaft; 33-connecting seat; 4-telescopic drive mechanism; 41-connecting ring; 411-arc slide groove; 42-mounting ring; 421-driving shaft; 422-roller; 43-rotation drive assembly; 431-toothed ring; 432-rotating shaft; 433-rotation gear; 434-rotation drive; 435-bevel gear. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1-Figure 3 and Fig.10 A device for removing iron-containing impurities for processing quartz sand for semiconductors comprises a frame 1 and a pickling barrel 11 arranged on the frame 1. The frame 1 is annular as a whole. A hinge 12 is provided at the bottom of the pickling barrel 11. The pickling barrel 11 is hinged to the frame 1 through the hinge 12, and a connecting piece 2 connected to the pickling barrel 11 is provided on the frame 1. There are at least three connecting pieces 2, and the multiple connecting pieces 2 are distributed in a ring array about the axis of the frame 1. The frame 1 is also provided with a telescopic control mechanism 3 for controlling the telescopic extension of the connecting piece 2; in a working state, the telescopic control mechanism 3 controls the multiple connecting pieces 2 to shrink and reset in turn in a clockwise or counterclockwise direction, and the pickling barrel 11 shakes under the pulling force of the connecting piece 2.

[0032] The present invention realizes the function of controlling the shaking of the pickling barrel 11 through the frame 1, the pickling barrel 11, the hinge 12, the connector 2 and the telescopic control mechanism 3, so as to achieve the effect of quickly mixing the quartz sand in the pickling barrel 11 with the pickling liquid, and also significantly improves the impurity removal efficiency of iron-containing impurities, and solves the problem that the stirring rod inside the traditional pickling equipment is easily corroded by the pickling liquid. A bottom plate 111 is provided at the bottom of the pickling barrel 11, and the hinge 12 and the connector 2 are both connected to the bottom plate 111. In order to ensure the rotational freedom of the pickling barrel 11, at least one of the bottom plate 111 or the frame 1 is rotatably connected to the hinge 12. In the working state, the operator first fills the pickling barrel 11 with pickling liquid, and then puts the quartz sand that has been preliminarily purified into the pickling barrel 11. The telescopic control mechanism 3 controls one of the connectors 2 to contract, and the other connectors 2 are pulled and elongated accordingly, and then the bottom plate 111 is pulled by the connector 2, and the bottom plate 111 is pulled. 11 drives the pickling barrel 11 to swing, and supports the pickling barrel 11 through the hinge 12 and the remaining connecting parts 2, and then controls the next connecting part 2 to contract through the telescopic control mechanism 3, and controls the previous connecting part 2 to reset, and then through the mutual cooperation of multiple connecting parts 2, the effect of shaking the pickling barrel 11 is achieved, and then the effect of shaking the pickling liquid and quartz sand in the pickling barrel 11 is achieved, so that the pickling liquid and quartz sand are quickly and evenly mixed, and the acid solution reacts with the iron impurities chemically to dissolve the iron impurities in the acid solution, thereby achieving the purpose of removing the iron impurities.

[0033] Reference Figure 3-Figure 5 The connecting member 2 includes a third articulated seat 21, a first connecting rod 22 and a universal connector 23. The two ends of the universal connector 23 are respectively connected to the third articulated seat 21 and the pickling cylinder 11. One end of the first connecting rod 22 is hinged to the third articulated seat 21, and the other end of the first connecting rod 22 is transmission-connected to the telescopic control mechanism 3.

[0034] The present invention realizes the function of pulling the pickling barrel 11 through the second articulated seat 122, the first connecting rod 22 and the universal connector 23, and at the same time achieves the effect of stably supporting and connecting the pickling barrel 11 through the connecting rod structure, thereby avoiding unnecessary deflection of the pickling barrel 11. The universal connector 23 is preferably a cross coupling, and the universal connector 23 is rotatably connected to the bottom plate 111. In the working state, the telescopic control mechanism 3 pulls the first connecting rod 22, and the first connecting rod 22 pulls the third articulated seat 21, and then pulls the universal connector 23 through the third articulated seat 21, and pulls the pickling barrel 11 through the universal connector 23, and supports the pickling barrel 11 through the articulated member 12 and the remaining connecting members 2, and then controls the next connecting member 2 to retract through the telescopic control mechanism 3, and controls the previous connecting member 2 to reset, and then achieves the effect of shaking the pickling barrel 11 through the cooperation of multiple connecting members 2. By providing the universal connector 23 , when the connector 2 pulls the pickling barrel 11 , the first connecting rod 22 will not be damaged due to the tilt of the pickling barrel 11 .

[0035] Reference Figure 3-Figure 5 The telescopic control mechanism 3 includes a second connecting rod 31 and a third connecting rod 32. One end of the second connecting rod 31 is rotatably connected to the frame 1, and a straight groove 311 is provided on the second connecting rod 31. The end of the first connecting rod 22 away from the third hinge seat 21 is provided with a first guide shaft 221 that slides with the straight groove 311. The third connecting rod 32 is connected to the second connecting rod 31. The frame 1 is provided with a telescopic driving mechanism 4 for driving the third connecting rod 32 to move.

[0036] The present invention realizes the function of pulling the first link 22 through the second link 31, the third link 32 and the telescopic drive mechanism 4. The frame 1 is provided with a mounting seat 13, and one end of the second link 31 is rotatably mounted on the mounting seat 13; in order to further enhance the motion stability and efficiency of the entire mechanism, the third link 32 is cleverly connected to the second link 31. This connection enables the movement of the third link 32 to directly affect the state of the second link 31, thereby realizing indirect control of the first link 22. The straight groove 311 provided on the second connecting rod 31 is used to guide and support the first connecting rod 22, so that the movement of the first connecting rod 22 is more stable. In the working state, the telescopic driving mechanism 4 drives the third connecting rod 32 to move, and the second connecting rod 31 connected thereto is pulled by the third connecting rod 32, and then the first guide shaft 221 on the first connecting rod 22 is pulled by the second connecting rod 31, thereby driving the first connecting rod 22 to move. The first connecting rod 22 pulls the bottom plate 111 through the third hinge seat 21 and the universal joint 23, and the bottom plate 111 drives the pickling barrel 11 to swing, thereby shaking the pickling liquid and quartz sand in the pickling barrel 11 to quickly remove impurities.

[0037] Reference Figure 5 One end of the third connecting rod 32 away from the telescopic driving mechanism 4 is rotatably connected to the first guide shaft 221.

[0038] As the first embodiment of the telescopic control mechanism 3, the present invention realizes efficient and direct movement effect by rotating the third connecting rod 32 and the first guide shaft 221, thereby directly pulling the first connecting rod 22. This innovative design abandons the traditional indirect drive mode, but directly transmits the driving force to the first connecting rod 22 through the interaction between the third connecting rod 32 and the first guide shaft 221, thereby significantly improving the response speed and motion accuracy of the system. Specifically, the end of the third connecting rod 32 and the first guide shaft 221 adopts a rotation connection mode, which not only ensures the relative freedom of movement between the two, but also ensures the smooth transmission of the driving force. Driven by the telescopic drive mechanism 4, the third connecting rod 32 starts to move, and directly pulls the first connecting rod 22 to perform corresponding displacement through the rotation connection mode. In this process, the second connecting rod 31 starts an important guiding and supporting role. Although it does not directly participate in the transmission of the driving force, it provides stable support and precise guidance for the movement of the first connecting rod 22 and the third connecting rod 32 through the cooperation of the straight groove 311 and the first guide shaft 221. This design makes the entire system more stable and reliable during movement, and also prolongs the service life of each component. In general, the present invention realizes direct pulling of the first connecting rod 22 by directly rotating the third connecting rod 32 with the first guide shaft 221, which not only improves the movement efficiency and accuracy of the system, but also provides more stable and reliable power support for subsequent applications.

[0039] Reference Figure 6 The two ends of the second connecting rod 31 are respectively rotatably connected to one end of the third connecting rod 32 away from the telescopic driving mechanism 4 and the frame 1.

[0040] As the second embodiment of the telescopic control mechanism 3, the present invention designs a new type of mechanical transmission mechanism, the core of which is to achieve efficient driving and transmission functions through the precise connection between the third connecting rod and the second connecting rod. Specifically, the mechanism successfully transmits the driving force of the telescopic drive mechanism 4 to the second connecting rod 31 through the ingenious connection between the end of the third connecting rod 32 and the second connecting rod 31, thereby causing its rotation. When the telescopic drive mechanism 4 starts and drives the third connecting rod 32 to move linearly, one end of the third connecting rod 32 will pull the second connecting rod 31 to press it away from the end of the frame 1. This downward pressing action not only causes the second connecting rod 31 to rotate, but also promotes the smooth movement of the first connecting rod 22 through the sliding cooperation between the straight groove 311 thereon and the first guide shaft 221 on the first connecting rod 22. It is worth mentioning that this design cleverly utilizes the lever principle, especially the labor-saving lever structure. By carefully configuring the length and position of the second connecting rod 31, the present invention achieves effective amplification of the output force of the telescopic drive mechanism 4 while ensuring the transmission efficiency. This means that even when the output force of the telescopic drive mechanism 4 is small, the first connecting rod 22 can be easily and stably driven to move through this mechanism. Of course, this design also puts higher requirements on the structural strength of the second connecting rod 31. In order to ensure that it maintains sufficient stability and durability while bearing tensile force and rotational force, the present invention has strictly controlled and optimized material selection, structural design, and manufacturing process. In general, the present invention not only improves the efficiency and stability of mechanical transmission through innovative connecting rod design and ingenious transmission mechanism, but also realizes effective amplification of output force, providing new ideas and methods for the design and optimization of mechanical equipment in related fields.

[0041] Reference Figure 7-Figure 9 The telescopic driving mechanism 4 includes a connecting ring 41, a mounting ring 42 and a rotating driving assembly 43; the connecting ring 41 is slidably installed on the frame 1, and an arc-shaped slide groove 411 is provided on the connecting ring 41. The end of the third connecting rod 32 away from the second connecting rod 31 is rotatably installed with a connecting seat 33, and the connecting seat 33 is slidably matched with the arc-shaped slide groove 411. The mounting ring 42 is rotatably installed on the frame 1, and the axis of the mounting ring 42 is colinear with the axis of the frame 1. The rotating driving assembly 43 is used to drive the mounting ring 42 to rotate. A driving shaft 421 is provided on the mounting ring 42, and the driving shaft 421 presses the connecting ring 41 against the frame 1. When the rotating driving assembly 43 drives the mounting ring 42 to rotate, the driving shaft 421 drives the connecting ring 41 to swing.

[0042] The present invention realizes the function of driving the third connecting rod 32 to move through the connecting seat 33, the connecting ring 41, the mounting ring 42, the driving shaft 421 and the rotating driving assembly 43. The rotating driving assembly 43 includes a gear ring 431, a rotating shaft 432, a rotating gear 433, a rotating driver 434 and a bevel gear 435. The gear ring 431 is installed on the mounting ring 42, and the axis of the gear ring 431 is colinear with the axis of the mounting ring 42. The rotating shaft 432 is rotatably installed on the frame 1. The rotating gear 433 is sleeved on the rotating shaft 432. The rotating gear 433 is meshed and connected with the gear ring 431. The rotating driver 434 is installed on the frame 1. There are two bevel gears 435. The two bevel gears 435 are respectively sleeved on the driving end of the rotating driver 434 and the rotating shaft 432. The two bevel gears 435 are meshed and connected. The frame 1 is provided with a controller for human-computer interaction. The rotating driver 434 is preferably a servo motor, and the servo motor is electrically connected to the controller. In the working state, after the device is started, the controller sends a signal The signal is given to the rotation driver 434. After receiving the signal, the rotation driver 434 drives the rotating shaft 432 to rotate through the bevel gear 435, and the rotating shaft 432 drives the rotating gear 433 to rotate. The rotating gear 433 drives the gear ring 431 meshing with it to rotate, and the gear ring 431 drives the mounting ring 42 to rotate. The mounting ring 42 drives the driving shaft 421 to rotate, and the driving shaft 421 pushes the connecting ring 41. The connecting ring 41 drives multiple connecting seats 33 installed thereon to move. The connecting seat 33 on the side close to the driving shaft 421 pulls the first connecting rod 22 through the third connecting rod 32 and the second connecting rod 31, and then pulls the pickling cylinder 11, so that the pickling cylinder 11 tilts toward the said one side, and with the rotation of the mounting ring 42, the tilting direction of the pickling cylinder 11 changes accordingly, thereby forming a regular swing, thereby achieving the effect of shaking the pickling cylinder 11.

[0043] Reference Figure 7 and Figure 8 A roller 422 is rotatably mounted on the driving shaft 421 , and the roller 422 is rollingly connected to the connecting ring 41 .

[0044] The present invention realizes the function of reducing the wear of the driving shaft 421 and the mounting ring 42 through the roller 422. In the working state, the mounting ring 42 needs to be pushed by the driving shaft 421 to achieve the effect of sequentially pushing the movement of multiple third connecting rods 32, resulting in severe friction between the driving shaft 421 and the mounting ring 42, which affects the service life of the parts. For this reason, the roller 422 is provided, and the mounting ring 42 is pushed to swing by the roller 422 rolling along the inner ring of the connecting ring 41.

[0045] Reference Fig.10 The hinge 12 includes a first hinge seat 121 and a second hinge seat 122. The first hinge seat 121 and the second hinge seat 122 are respectively mounted on the frame 1 and the pickling cylinder 11. The first hinge seat 121 and the second hinge seat 122 are rotatably connected.

[0046] The present invention realizes the function of connecting the frame 1 and the pickling barrel 11 through the first hinge seat 121 and the second hinge seat 122, thereby achieving the effect of improving the swing flexibility of the pickling barrel 11. The first hinge seat 121 is rotatably connected to the frame 1, and the second hinge seat 122 is arranged on the bottom plate 111. Through the relative rotation between the first hinge seat 121 and the frame 1, the swing of the pickling barrel 11 can be made more flexible, avoiding the situation where a large stress is generated between the bottom plate 111 of the pickling barrel 11 and the second hinge seat 122, resulting in damage to the second hinge seat 122.

[0047] Reference Figure 1-Figure 2 At least three legs 14 are arranged on the frame 1 , and a support ring 141 for connecting a plurality of legs 14 is arranged at the bottom of the legs 14 , and the plurality of legs 14 are distributed in a circular array about the axis of the support ring 141 .

[0048] The present invention realizes the function of improving the support stability of the frame 1 through the support legs 14 and the support ring 141. Since the pickling barrel 11 will generate a large centrifugal force when shaking, the frame 1 is provided with support legs 14 and the support ring 141 for stabilizing the frame 1.

[0049] Reference Figure 1-Figure 3 A method for removing iron-containing impurities in quartz sand processing for semiconductors includes the following steps: S1, injecting pickling liquid and quartz sand into a pickling barrel 11; S2, controlling the extension and retraction of multiple connecting parts 2 in clockwise or counterclockwise order through a telescopic control mechanism 3, and the connecting parts 2 pull the pickling barrel 11 to shake the pickling liquid and quartz sand in the pickling barrel 11.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A device for removing iron-containing impurities in semiconductor quartz sand processing, comprising a frame (1) and a pickling barrel (11) arranged on the frame (1), characterized in that: The frame (1) is annular in shape as a whole. A hinge (12) is provided at the bottom of the pickling barrel (11). The pickling barrel (11) is hinged to the frame (1) via the hinge (12). A connecting piece (2) connected to the pickling barrel (11) is provided on the frame (1). At least three connecting pieces (2) are provided. The plurality of connecting pieces (2) are distributed in a ring array about the axis of the frame (1). A telescopic control mechanism (3) for controlling the telescopic extension of the connecting piece (2) is also provided on the frame (1). In a working state, the telescopic control mechanism (3) controls the plurality of connecting pieces (2) to contract and reset in sequence in a clockwise or counterclockwise direction. The pickling barrel (11) shakes under the tensile force of the connecting piece (2). The connecting member (2) comprises a third articulated seat (21), a first connecting rod (22) and a universal connector (23); two ends of the universal connector (23) are respectively connected to the third articulated seat (21) and the pickling cylinder (11); one end of the first connecting rod (22) is articulated to the third articulated seat (21); and the other end of the first connecting rod (22) is drivingly connected to the telescopic control mechanism (3); The telescopic control mechanism (3) comprises a second connecting rod (31) and a third connecting rod (32), one end of the second connecting rod (31) is rotatably connected to the frame (1), and a straight groove (311) is provided on the second connecting rod (31), one end of the first connecting rod (22) away from the third hinge seat (21) is provided with a first guide shaft (221) slidably matched with the straight groove (311), the third connecting rod (32) is connected to the second connecting rod (31), and a telescopic driving mechanism (4) for driving the third connecting rod (32) to move is provided on the frame (1); The telescopic driving mechanism (4) comprises a connecting ring (41), a mounting ring (42) and a rotating driving assembly (43).

2. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 1, characterized in that: One end of the third connecting rod (32) away from the telescopic driving mechanism (4) is rotatably connected to the first guide shaft (221).

3. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 1, characterized in that: Both ends of the second connecting rod (31) are rotatably connected to one end of the third connecting rod (32) away from the telescopic driving mechanism (4) and the frame (1).

4. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 1, characterized in that: The connecting ring (41) is slidably mounted on the frame (1); an arc-shaped sliding groove (411) is provided on the connecting ring (41); a connecting seat (33) is rotatably mounted on one end of the third connecting rod (32) away from the second connecting rod (31); the connecting seat (33) and the arc-shaped sliding groove (411) are slidably matched; the mounting ring (42) is rotatably mounted on the frame (1); and the axis of the mounting ring (42) is colinear with the axis of the frame (1); the rotating driving component (43) is used to drive the mounting ring (42) to rotate; a driving shaft (421) is provided on the mounting ring (42); the driving shaft (421) presses the connecting ring (41) against the frame (1); when the rotating driving component (43) drives the mounting ring (42) to rotate, the driving shaft (421) drives the connecting ring (41) to swing.

5. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 4, characterized in that: A roller (422) is rotatably mounted on the driving shaft (421), and the roller (422) is rollingly connected to the connecting ring (41).

6. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 1, characterized in that: The hinged member (12) comprises a first hinged seat (121) and a second hinged seat (122); the first hinged seat (121) and the second hinged seat (122) are respectively mounted on the frame (1) and the pickling barrel (11); the first hinged seat (121) and the second hinged seat (122) are rotatably connected.

7. The device for removing iron-containing impurities in semiconductor quartz sand processing according to claim 1, characterized in that: At least three supporting feet (14) are arranged on the frame (1); a supporting ring (141) for connecting a plurality of supporting feet (14) is arranged at the bottom of the supporting feet (14); and the plurality of supporting feet (14) are distributed in a ring array about the axis of the supporting ring (141).

8. A method for removing iron-containing impurities in semiconductor quartz sand processing, using a device for removing iron-containing impurities in semiconductor quartz sand processing as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, injecting pickling liquid and quartz sand into the pickling cylinder (11); S2, controlling the extension and retraction of a plurality of connecting members (2) in a clockwise or counterclockwise direction in sequence through a telescopic control mechanism (3), so that the connecting members (2) pull the pickling cylinder (11) and shake the pickling liquid and quartz sand in the pickling cylinder (11).

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