High-purity quartz sand purification pickling device

Abstract

The application discloses a high-purity quartz sand purification pickling device, which comprises a pickling bin, a plurality of groups of guide rails are vertically arranged on the opposite inner walls of the inner cavity of the pickling bin, transversely arranged rotating rollers are slidably connected between the opposite guide rails on the two sides of the inner wall, the two ends of each group of the rotating rollers are fixedly connected with rotating shafts, the rotating shafts at the two ends are respectively clamped in the track grooves of the opposite two groups of guide rails, a certain gap is reserved between the adjacent rotating rollers, the inner cavity of the pickling bin is provided with a first lifting mechanism, the first lifting mechanism can simultaneously control all the rotating rollers to move in the guide rails, can preliminarily screen the quartz sand according to the particle size, the large-particle quartz sand moves up and down in the pickling liquid, sufficiently contacts with the pickling liquid, the rotating rotating rollers and the bubbles sprayed by the side wall can enhance the tumbling of the quartz sand stacked on the rotating rollers, enhance the pickling effect, and facilitate the discharging.

Description

Technical Field

[0001] This invention relates to the field of quartz sand processing, and more particularly to a high-purity quartz sand purification and acid washing device. Background Technology

[0002] In the purification and selection of refined and high-purity quartz sand, conventional mineral processing methods are often insufficient, especially for removing the iron oxide film on the surface of quartz sand particles and iron impurities within cracks. To improve the quality and yield of purified quartz sand, and considering its insolubility in acid but slight solubleness in KOH solution, acid leaching has become a necessary method.

[0003] Acid pickling of quartz sand involves treating it with hydrochloric acid, sulfuric acid, oxalic acid, or hydrofluoric acid to dissolve iron. The soaking time for quartz sand in the acid pickling solution is generally 3-5 hours. The specific soaking time needs to be adjusted according to the yellow skin of the quartz sand, or the acid pickling solution and quartz sand need to be stirred for a period of time. The soaking time required varies depending on the particle size of the quartz sand. Large quartz sand particles often require more stirring to achieve the same acid pickling effect as small quartz sand particles in the same amount of time.

[0004] In existing technologies, the acid leaching process does not differentiate between different particle sizes of quartz sand. The quartz sand is piled together, which prevents the quartz sand material in the middle from fully contacting the acid leaching solution, resulting in low acid leaching efficiency or poor acid leaching effect. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a high-purity quartz sand purification and acid washing device.

[0006] The present invention proposes a high-purity quartz sand purification and acid washing device, including an acid washing chamber, wherein multiple sets of guide rails are vertically arranged on the inner walls of the inner cavity of the acid washing chamber, and the guide rails on both sides of the inner wall are opposite to each other.

[0007] A horizontally placed rotating roller is slidably connected between the guide rails on both sides of the inner wall. Each set of rotating rollers has a rotating shaft fixedly connected to both ends. The rotating shafts at both ends are respectively engaged in the track grooves of the two sets of guide rails. A certain gap is left between adjacent rotating rollers.

[0008] The pickling chamber has a first lifting mechanism inside, which can simultaneously control all the rollers to move in the guide rail.

[0009] Furthermore, the guide rail includes a first vertical rail, a second vertical rail, a first inclined rail, and a second inclined rail. The first vertical rail and the second vertical rail are parallel to each other in the vertical direction. The upper end of the first vertical rail is lower than the upper end of the second vertical rail, and the lower end of the first vertical rail is lower than the lower end of the second vertical rail. The two ends of the first inclined rail are respectively connected to the upper ends of the first vertical rail and the upper ends of the second vertical rail. The two ends of the second inclined rail are respectively connected to the lower ends of the first vertical rail and the lower ends of the second vertical rail.

[0010] Furthermore, a rack is fixedly connected to the inner wall of the first vertical track of each group of guide rails, and a gear is provided on the outer wall of the rotating shaft of each group of rollers. The gears mesh with the racks in the first vertical track of the corresponding guide rails.

[0011] Furthermore, each of the rollers has a built-in cavity and several air outlets on its outer wall. The rotating shaft on each set of rollers has a built-in cavity, and the cavity in the rotating shaft is connected to the cavity of the roller. An air pump is installed on the pickling chamber, and an air supply pipe is connected between the air pump and the rotating shaft on each set of rollers. The air supply pipe and the rotating shaft are rotatably connected.

[0012] Preferably, the first lifting mechanism includes a support beam, which is horizontally located below the rotating rollers. The support beam is perpendicular to the axis of the rotating shaft, and the length of the support beam is sufficient to support all the rotating rollers.

[0013] Preferably, the pickling chamber has multiple sets of second lifting mechanisms in its inner cavity. The second lifting mechanism includes a bracket, and the bracket is provided at the bottom of one of the two adjacent sets of rotating rollers.

[0014] Preferably, a rotating ring is movably sleeved on the outer wall of the roller, and the rotating ring is located above the support beam.

[0015] Preferably, the pickling tank has a feed inlet at the top, a tank door and a liquid outlet at the lower part of the outer side wall, and a control valve on the liquid outlet.

[0016] In this invention, quartz sand can be initially screened according to particle size. Different particle sizes of quartz sand have different pickling requirements. Small quartz sand particles sink to the bottom of the pickling chamber, while large quartz sand particles are stacked on the upper side of the rotating roller. The rotation of the roller turns over the quartz sand stacked on top, ensuring the screening effect of small and large quartz sand particles. Bubbles can be sprayed from the side wall of the rotating roller. As the bubbles rise, they push the quartz sand upward, turning the stacked quartz sand and allowing it to fully contact the pickling solution, thereby improving the pickling effect of the quartz sand. After pickling is completed, the gap between adjacent rotating rollers increases, and the large quartz sand particles that were originally on the rotating roller fall below the roller and sink to the bottom of the pickling chamber. The pickled quartz sand is then removed.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the pickling tank in this invention;

[0020] Figure 3 This is a schematic diagram of the guide rail structure in this invention;

[0021] Figure 4 This is a schematic diagram of the structure of the rotary roller in this invention;

[0022] Figure 5 This is a front view of the transfer roller and support beam in this invention;

[0023] Figure 6 This is a side view of the present invention with all the rotating rollers supported on the support beam;

[0024] Figure 7 This is a side view of the rotating roller in this invention, which is supported on the support beam and the bracket respectively.

[0025] Figure 8 This is a schematic diagram of the external structure of the pickling tank in this invention;

[0026] 1. Pickling tank; 101. Tank door; 102. Feed inlet;

[0027] 2. Guide rail; 201. First vertical rail; 202. Second vertical rail; 203. Rack; 204. First inclined rail; 205. Second inclined rail;

[0028] 3. Rotary roller; 301. Air outlet; 302. Rotating shaft; 303. Rotating ring; 304. Gear;

[0029] 4. First lifting mechanism; 5. Support beam; 6. Second lifting mechanism; 7. Bracket;

[0030] 8. Liquid outlet; 801. Control valve;

[0031] 9. Air pump; 901. Air supply pipe. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figures 1-2 The apparatus shown is a high-purity quartz sand purification and acid washing device, including an acid washing chamber 1. Multiple sets of guide rails 2 are vertically arranged on the inner walls of the inner cavity of the acid washing chamber 1, with the guide rails 2 on both sides of the inner wall facing each other.

[0034] A horizontally placed rotating roller 3 is slidably connected between the guide rails 2 on both sides of the inner wall. Each set of rotating rollers 3 has a rotating shaft 302 fixedly connected to both ends. The rotating shafts 302 at both ends are respectively engaged in the track grooves of the two sets of guide rails 2. A certain gap is left between adjacent rotating rollers 3.

[0035] The pickling chamber 1 has a first lifting mechanism 4 in its inner cavity, which can simultaneously control all the rotating rollers 3 to move in the guide rail 2.

[0036] The first lifting mechanism 4 is provided in two sets, which are respectively supported at both ends of all the rotating rollers 3. At this time, all the rotating rollers 3 are lined up in a row and located on the same horizontal plane.

[0037] Pickling solution is injected into pickling chamber 1, covering the top of guide rail 2. Quartz sand particles are fed downward from the top of pickling chamber 1. Large quartz sand particles are stuck between the gaps of adjacent rotating rollers 3 and stacked upward, while small quartz sand particles fall into the bottom of pickling chamber 1 through the gaps between adjacent rotating rollers 3. The rotating rollers 3 play a preliminary screening role.

[0038] The rotating roller 3 is installed between two sets of opposite guide rails 2. The rotating roller 3 moves on the guide rails 2. As the first lifting mechanism 4 rises and falls, it drives all the rotating rollers 3 to move along the trajectory of the guide rails 2.

[0039] Please see Figure 3 :

[0040] Further, the guide rail 2 includes a first vertical rail 201, a second vertical rail 202, a first inclined rail 204, and a second inclined rail 205. The first vertical rail 201 and the second vertical rail 202 are parallel to each other in the vertical direction. The upper end of the first vertical rail 201 is lower than the upper end of the second vertical rail 202, and the lower end of the first vertical rail 201 is lower than the lower end of the second vertical rail 202. The two ends of the first inclined rail 204 are respectively connected to the upper ends of the first vertical rail 201 and the upper ends of the second vertical rail 202. The two ends of the second inclined rail 205 are respectively connected to the lower ends of the first vertical rail 201 and the lower ends of the second vertical rail 202.

[0041] The guide rail 2 is a closed track resembling a parallelogram, consisting of a first vertical track 201, a second vertical track 202, a first inclined track 204, and a second inclined track 205. All the rotating rollers 3 are located on the first lifting mechanism 4. When the rotating roller 3 is on the first vertical track 201, the lifting mechanism rises, driving the rotating roller 3 upward until it enters the first inclined track 204. When it switches to the second vertical track 202, the first lifting mechanism 4 descends, and the rotating roller 3 descends. The large particles of quartz sand above the rotating roller 3 are fully in contact with the liquid in the pickling tank, and some of the quartz sand is suspended in the solution. During this process, the small particles of quartz sand that were not initially screened and did not fall to the bottom of the pickling tank 1 are screened again and fall to the bottom of the pickling tank. After multiple cycles of lifting and lowering, the small and large particles of quartz sand are screened.

[0042] Please see Figures 4-5 :

[0043] Furthermore, a rack 203 is fixedly connected to the inner wall of the first vertical track 201 of each group of guide rails 2, and a gear 304 is provided on the outer wall of the rotating shaft 302 of each group of rollers 3. The gears 304 mesh with the racks 203 in the first vertical track 201 of the corresponding guide rails 2.

[0044] During the upward movement of the rotating roller 3, the gears 304 on the rotating shafts 302 at both ends of the rotating roller 3 drive the rotating roller 3 to rotate under the action of the rack 203, which turns over the quartz sand piled on top of it, thus ensuring the screening effect of small and large quartz sand particles.

[0045] Furthermore, each of the rotating rollers 3 has a built-in cavity and several air outlets 301 are provided on its outer wall. The rotating shaft 302 on each group of rotating rollers 3 has a built-in cavity, and the cavity in the rotating shaft 302 is connected to the cavity of the rotating roller 3. An air pump 9 is installed on the pickling chamber 1, and an air supply pipe 901 is connected between the air pump 9 and the rotating shaft 302 on each group of rotating rollers 3. The air supply pipe 901 and the rotating shaft 302 are rotatably connected.

[0046] Air is pumped by air pump 9 into the inner cavity of the rotating roller 3 through air pipe 901, and air bubbles are discharged through each air outlet 301. As the air bubbles rise, they push the quartz sand upward, which can turn the stacked quartz sand over and make full contact with the pickling solution, thereby improving the pickling effect of the quartz sand.

[0047] please Figures 6-7 :

[0048] Preferably, the first lifting mechanism 4 includes a support beam 5, which is horizontally located below the rotating roller 3. The support beam 5 is perpendicular to the axis of the rotating shaft 302, and the length of the support beam 5 is sufficient to support all the rotating rollers 3.

[0049] The first cylinder drives the support beam 5 to move, and the support beam 5 can ensure that all the rotating rollers 3 are on the same horizontal plane. The support beam 5 also controls the height position of all the brackets 7.

[0050] Preferably, the pickling chamber 1 has multiple sets of second lifting mechanisms 6 in its inner cavity. The second lifting mechanism 6 includes a bracket 7, and the bracket 7 is provided at the bottom of one of the two adjacent sets of rotating rollers 3.

[0051] After pickling is complete, large-particle quartz sand needs to be fed from the top of roller 3. At this time, the first lifting mechanism 4 descends, while the second lifting mechanism 6 rises. The height of the bracket 7 exceeds the height of the support beam 5, intermittently lifting one of the adjacent top rollers. Figure 6 The state becomes Figure 7 In this state, the gap between adjacent rollers 3 becomes larger, and the large particles of quartz sand that were originally on roller 3 fall below roller 3 and sink to the bottom of pickling tank 1.

[0052] Preferably, a rotating ring 303 is movably sleeved on the outer wall of the rotating roller 3, and the rotating ring 303 is located above the support beam 5.

[0053] The purpose of adding the rotating ring 303 is to reduce the frictional resistance between the support beam 5 and the rotating roller 3. The inner diameter of the rotating ring 303 and the outer wall of the rotating roller 3 are provided with a bearing structure.

[0054] Please see Figure 8 :

[0055] Preferably, the pickling chamber 1 is provided with a feed inlet 102 at the top, and a chamber door 101 and a liquid outlet 8 are provided at the lower part of the outer side wall of the pickling chamber 1. A control valve 801 is provided on the liquid outlet 8.

[0056] After all the quartz sand has sunk to the bottom of pickling tank 1, open the control valve 801 on the outlet 8 to discharge the pickling solution from pickling tank 1, and the quartz sand is taken out through the tank door 101.

[0057] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-purity quartz sand purification and acid washing device, comprising an acid washing chamber (1), characterized in that: The pickling tank (1) has multiple sets of guide rails (2) vertically arranged on the inner walls of the opposite sides of the inner cavity, with the guide rails (2) on both sides of the inner wall facing each other. A horizontally placed rotating roller (3) is slidably connected between the guide rails (2) on both sides of the inner wall. Each set of rotating rollers (3) is fixedly connected to a rotating shaft (302) at both ends. The rotating shafts (302) at both ends are respectively engaged in the track grooves of the two sets of guide rails (2) with a gap between adjacent rotating rollers (3). The pickling chamber (1) has a first lifting mechanism (4) in its inner cavity. The first lifting mechanism (4) can simultaneously control all the rotating rollers (3) to move in the guide rail (2). The guide rail (2) includes a first vertical rail (201), a second vertical rail (202), a first inclined rail (204), and a second inclined rail (205). The first vertical rail (201) and the second vertical rail (202) are parallel to each other in the vertical direction. The upper end of the first vertical rail (201) is lower than the upper end of the second vertical rail (202), and the lower end of the first vertical rail (201) is lower than the lower end of the second vertical rail (202). The two ends of the first inclined rail (204) are respectively connected to the upper ends of the first vertical rail (201) and the upper ends of the second vertical rail (202). The two ends of the second inclined rail (205) are respectively connected to the lower ends of the first vertical rail (201) and the lower ends of the second vertical rail (202). A rack (203) is fixedly connected to the inner wall of the first vertical track (201) of each group of guide rails (2), and a gear (304) is provided on the outer wall of the rotating shaft (302) of each group of rollers (3). The gear (304) meshes with the rack (203) in the first vertical track (201) of the corresponding guide rail (2). Each of the rollers (3) has a built-in cavity and several air outlets (301) on its outer wall. The rotating shaft (302) on each group of rollers (3) has a built-in cavity. The cavity in the rotating shaft (302) is connected to the cavity of the roller (3). An air pump (9) is installed on the pickling chamber (1). An air supply pipe (901) is connected between the air pump (9) and the rotating shaft (302) on each group of rollers (3). The air supply pipe (901) and the rotating shaft (302) are rotatably connected.

2. The high-purity quartz sand purification and acid washing device according to claim 1, characterized in that, The first lifting mechanism (4) includes a support beam (5), which is horizontally located below the rotating roller (3). The support beam (5) is perpendicular to the axis of the rotating shaft (302), and the length of the support beam (5) is sufficient to support all the rotating rollers (3).

3. The high-purity quartz sand purification and acid washing device according to claim 1, characterized in that, The pickling chamber (1) has multiple sets of second lifting mechanisms (6) in its inner cavity. The second lifting mechanism (6) includes a bracket (7), and the bracket (7) is provided at the bottom of one of the two adjacent sets of rotating rollers (3).

4. The high-purity quartz sand purification and acid washing device according to claim 1, characterized in that, The outer wall of the roller (3) is movably fitted with a rotating ring (303), which is located above the support beam (5).

5. The high-purity quartz sand purification and acid washing device according to claim 1, characterized in that, The pickling chamber (1) has a feed inlet (102) at the top, a chamber door (101) and a liquid outlet (8) at the lower part of the outer side wall of the pickling chamber (1), and a control valve (801) on the liquid outlet (8).

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