Pickling plant and mineral processing equipment

Abstract

The utility model discloses a pickling device and a mineral processing equipment. The pickling device is used to clean quartz sand with acid solution. The pickling device includes a container body and a filtering structure. The container body is formed with a cavity, and the cavity is used to contain the acid solution. The filtering structure includes a mounting base and a plurality of laminated filter caps. The mounting base is located in the cavity, and the mounting base is connected to the side wall or the bottom wall of the cavity. The plurality of laminated filter caps are arranged on the mounting base, and the filtering structure is used to separate quartz sand and acid solution. The utility model aims to replace the traditional filter cloth with the pickling device, reduce the wear of the filtering structure, improve the use efficiency of the pickling device, and improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing equipment, in particular to a pickling device and ore dressing equipment. Background Art

[0002] Quartz sand pickling is the mainstream processing technology and method for ultra-white quartz sand in China. It mainly uses single acid or mixed acid to react with iron and iron oxides in quartz sand, and then separates and cleans the solid and liquid (acid and quartz sand) to achieve the effect of reducing iron.

[0003] At present, the solid-liquid separation of pickling in the industry is to set up a planar filtration structure or a tubular filtration structure in the reaction chamber of the pickling reactor. The planar filtration structure is a filter plate with circular holes on the surface, and the tubular filtration structure is a filter tube arranged in parallel. The filter plate or filter tube is covered with acid-resistant and temperature-resistant filter cloth to achieve solid-liquid separation.

[0004] However, in actual use, the filter cloth is difficult to fix on the filter structure, especially in the peripheral and central areas, and the filter cloth is easily damaged due to the long-term friction between the quartz sand and the filter structure. Not only will the solid phase (sand) enter the liquid phase circulation system, seriously affecting the operating efficiency of the liquid phase (acid) circulation system, but the filter cloth is also difficult to replace and takes a long time to replace, resulting in low overall production efficiency of the reactor. Utility Model Content

[0005] The main purpose of the utility model is to provide a pickling device and mineral processing equipment, aiming to replace the traditional filter cloth with the pickling device, reduce the wear of the filter structure, improve the use efficiency of the pickling device, and improve the production efficiency.

[0006] In order to achieve the above object, the utility model provides a pickling device for cleaning quartz sand with acid solution, the pickling device comprising:

[0007] A container body, wherein the container body is formed with a cavity, and the cavity is used to contain the acid liquid; and

[0008] A filter structure, the filter structure includes a mounting base and a plurality of laminated water filter caps, the mounting base is located in the cavity, the mounting base is connected to the side wall or bottom wall of the cavity, a plurality of laminated water filter caps are arranged on the mounting base, and the filter structure is used to separate quartz sand and acid liquid.

[0009] In one embodiment, the mounting base is a mounting plate, the periphery of the mounting plate is connected to the side wall of the cavity, and the cavity is divided into a first cavity and a second cavity in the vertical direction, the first cavity is used to hold quartz sand, and a plurality of the laminated water filter caps are arranged on the mounting plate, each of the laminated water filter caps connects the first cavity and the second cavity to allow the acid to pass through the filtering structure.

[0010] In one embodiment, the mounting plate is provided with a plurality of first mounting holes, the first mounting holes are connected to the first cavity and the second cavity, and each of the laminated water filter caps is detachably disposed in one of the first mounting holes.

[0011] In one embodiment, a plurality of the first mounting holes are arranged in a ring-shaped manner around the center of the mounting plate to form a first mounting hole group, and a plurality of the first mounting hole groups are arranged in a ring-shaped manner from the center of the mounting plate to the periphery of the mounting plate.

[0012] In one embodiment, the mounting plate is further provided with a discharge barrel, the discharge barrel forms a discharge chamber communicating with the first chamber and an external space, and the discharge chamber is used to discharge the quartz sand in the first chamber;

[0013] The mounting plate is arranged to be inclined from the inner wall of the cavity to the discharge barrel to facilitate the discharge of the quartz sand.

[0014] In one embodiment, the mounting base includes a plurality of mounting tubes, and the plurality of mounting tubes are arranged on the bottom wall of the cavity, and each of the mounting tubes is provided with a plurality of second mounting holes so that each of the laminated water filter caps can be removably arranged in one of the second mounting holes, and each of the laminated water filter caps is connected to the cavity and the tube cavity of the mounting tube.

[0015] In one embodiment, a plurality of the second mounting holes are spaced apart along the axial direction of the mounting tube to form a second mounting hole group, and a plurality of the second mounting hole groups are spaced apart along a direction perpendicular to the axial direction of the mounting tube.

[0016] In one embodiment, the laminated water filter cap includes a filter head and a guide tube, the filter head includes a plurality of laminates, the plurality of laminates are spaced apart at one end of the guide tube, and the guide tube is detachably mounted on the mounting base.

[0017] In one embodiment, the mounting base is provided with a mounting hole, the inner wall of the mounting hole is provided with a first thread, the outer wall of the outlet pipe is provided with a second thread, and the first thread is spirally connected to the second thread so that the laminated water filter cap can be detachably connected to the mounting base.

[0018] The utility model also provides a mineral processing equipment, which comprises:

[0019] recoil device; and

[0020] As in the above pickling device, the recoil device is used to flush the quartz sand in the cavity of the pickling device.

[0021] The pickling device of the technical solution of the utility model is used for cleaning quartz sand by acid solution. The pickling device comprises a container body and a filtering structure. The container body is formed with a cavity, and the cavity is used for accommodating the acid solution. The filtering structure comprises a mounting base and a plurality of laminated water filter caps. The mounting base is located in the cavity, and the mounting base is connected to the side wall or the bottom wall of the cavity. The plurality of laminated water filter caps are arranged on the mounting base. The filtering structure is used for separating quartz sand and acid solution. By arranging the laminated water filter caps to replace the traditional filter screen structure, the wear of the filtering structure is reduced, the use efficiency of the pickling device is improved, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure of a pickling device in one embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the installation base in one embodiment of the utility model;

[0025] Figure 3 It is a schematic structural diagram of a mounting base in another embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] Label name Label name 100 Pickling device 211 Mounting Plate 1 Container body 2111 First mounting hole 11 Cavity 2112 Lower barrel 111 First cavity 2113 Feeding cavity 112 Second cavity 212 Mounting pipe 2 Filter structure 2121 Second mounting hole 21 Mounting substrate

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] Please refer to Figures 1 to 3 As shown, the utility model proposes a pickling device 100 for cleaning quartz sand with acid. The pickling device 100 includes a container body 1 and a filter structure 2. The container body 1 is formed with a cavity 11, and the cavity 11 is used to accommodate the acid. The filter structure 2 includes a mounting base 21 and a plurality of laminated water filter caps. The mounting base 21 is located in the cavity 11, and the mounting base 21 is connected to the side wall or the bottom wall of the cavity 11. The plurality of laminated water filter caps are arranged on the mounting base 21. The filter structure 2 is used to separate quartz sand and acid.

[0034] In this embodiment, the pickling device 100 is used to pickle quartz sand with acid solution; the acid solution can react with metal impurities on the surface of quartz sand and in the lattice system to separate the quartz sand and the metal impurities, thereby achieving a purification effect; specifically, the acid solution is a mixed acid solution of hydrofluoric acid, oxalic acid and citric acid, and the surface of quartz sand and its lattice system are dissolved by hydrofluoric acid, impurity ions such as iron and aluminum are exposed to the acid solution, and the acid radical ions ionized by organic acids such as oxalic acid and citric acid react with impurity ions such as iron and aluminum to form complexes and exist in the acid solution in the form of molecules.

[0035] In this embodiment, the pickling device 100 includes a container body 1 and a filter structure 2. The container body 1 is the main structural component of the ore dressing device. On the one hand, it is used to physically or chemically treat and sort the minerals. On the other hand, it is used to install and place other components such as the filter structure 2, the discharge structure, and the recoil structure. The container body 1 can be a closed or open tank, barrel or box, such as a reaction tank, or an open funnel-shaped structure, such as a desludging bucket, which is not limited here. The above-mentioned container body 1 is formed with an open or closed cavity 11, and the cavity 11 contains minerals and other raw materials used for sorting minerals, such as acid, water, etc.

[0036] In this embodiment, the filter structure 2 includes a mounting base 21 and a plurality of laminated water filter caps. The mounting base 21 is a structural support component of the filter structure 2. The mounting base 21 can be a mounting plate 211 or a mounting tube 212. The mounting base 21 is arranged in the cavity 11 formed by the container body 1. When the mounting base 21 is a mounting plate 211, the periphery of the mounting base 21 is connected to the inner wall of the cavity 11. At the same time, the plane where the maximum area of ​​the mounting plate 211 is located is arranged perpendicular to the vertical direction. When the mounting base 21 is a mounting tube 212, the mounting tube 212 is arranged on the bottom wall of the cavity 11. At the same time, a plurality of laminated water filter caps are arranged on the mounting base 21.

[0037] It can be understood that the filter structure 2 realizes the separation of quartz sand and acid liquid by installing the base 21 and multiple laminated water filter caps. The laminated water filter cap is a kind of filter. The laminated water filter cap is arranged by setting multiple parallel and spaced laminates to achieve the blocking of solids and allow liquid to pass through, and is provided with an outlet pipe so that the liquid flows from the outlet pipe to the designated area. In this application, a laminated water filter cap is used to replace the traditional filter cloth structure. The laminated water filter cap can be made of stainless steel or polymer material, and has high corrosion resistance and wear resistance. The installation of the laminated water filter cap and the installation base 21 can be achieved by detachable connection methods such as threaded connection, clamping, and plug-in, and can also be fixedly connected by welding, one-piece molding, etc., so that the connection between the laminated water filter cap and the installation base 21 is tighter, avoiding the problems that the traditional filter cloth structure is not easy to fix and is easy to break, thereby improving the overall operation stability of the pickling device 100 and improving production efficiency.

[0038] The pickling device 100 of the present technical solution is used to clean quartz sand with acid. The pickling device 100 includes a container body 1 and a filter structure 2. The container body 1 is formed with a cavity 11, and the cavity 11 is used to contain the acid. The filter structure 2 includes a mounting base 21 and a plurality of laminated water filter caps. The mounting base 21 is located in the cavity 11, and the mounting base 21 is connected to the side wall or the bottom wall of the cavity 11. The plurality of laminated water filter caps are arranged on the mounting base 21. The filter structure 2 is used to separate quartz sand and acid. By arranging the laminated water filter caps to replace the traditional filter structure, the wear of the filter structure 2 is reduced, the use efficiency of the pickling device 100 is improved, and the production efficiency is improved.

[0039] In one embodiment, the mounting base 21 is a mounting plate 211, the periphery of the mounting plate 211 is connected to the side wall of the cavity 11, and the cavity 11 is divided into a first cavity 111 and a second cavity 112 along the vertical direction. The first cavity 111 is used to hold quartz sand, and a plurality of laminated water filter caps are arranged on the mounting plate 211, each of which connects the first cavity 111 and the second cavity 112 to allow the acid to pass through the filter structure 2.

[0040] In this embodiment, if Figure 1 and Figure 2 As shown, the mounting base 21 is a mounting plate 211 structure. The mounting plate 211 can be connected to the side wall of the cavity 11 through the periphery, and can also be connected to the inner wall of the cavity 11 by setting a mounting frame. The setting of the mounting plate 211 can separate the cavity 11 into two independent chambers in the vertical direction, namely the first cavity 111 and the second cavity 112, and the first cavity 111 and the second cavity 112 are connected through a laminated water filter cap; wherein, the first cavity 111 is used to hold quartz sand, and during pickling, acid liquid is injected from the first cavity 111, and after the acid liquid reacts with the quartz sand, it flows into the second cavity 112 through the laminated water filter cap to achieve solid-liquid separation of the quartz sand and the acid liquid.

[0041] It can be understood that the mounting plate 211 is used to form the first cavity 111 and the second cavity 112 so that the quartz sand and the acid liquid can have independent retention space. At the same time, by arranging a laminated water filter cap on the mounting plate 211, the first cavity 111 and the second cavity 112 are connected, and only the acid liquid can pass through the laminated water filter cap to achieve separation of the quartz sand and the acid liquid. Specifically, the laminated water filter cap has one end with multiple laminates arranged in the first cavity 111, and the outlet pipe of the laminated water filter cap extends into the second cavity 112 to achieve the connection between the first cavity 111 and the second cavity 112.

[0042] In one embodiment, the mounting plate 211 is provided with a plurality of first mounting holes 2111 , the first mounting holes 2111 are connected to the first cavity 111 and the second cavity 112 , and each laminated water filter cap is detachably disposed in a first mounting hole 2111 .

[0043] In this embodiment, if Figure 2 As shown, the first mounting hole 2111 connects the first cavity 111 and the second cavity 112, and the first mounting hole 2111 is used to install the laminated water filter cap, which is detachably arranged in the first mounting hole 2111. For example, an internal thread is arranged on the inner wall of the first mounting hole 2111, and an external thread is arranged on the outer wall of the laminated water filter cap outlet pipe. The laminated water filter cap is installed in the first mounting hole 2111 by screwing the internal thread and the external thread together, thereby realizing the installation of the laminated water filter cap and the mounting plate 211. Alternatively, a slot is arranged in the first mounting hole 2111, and the laminated water filter cap is inserted into the slot. After ensuring that the laminated water filter cap is fixed in the vertical direction, the laminated water filter cap is easier to disassemble and assemble.

[0044] It can be understood that the laminated water filter cap is detachably connected to the mounting plate 211, which facilitates the installation and removal of the laminated water filter cap, thereby facilitating the maintenance and care of the filtration structure 2 and the pickling device 100 as a whole, and effectively reducing the time and difficulty required to replace a damaged laminated water filter cap, thereby improving the use efficiency of the pickling device 100 and improving production efficiency.

[0045] In one embodiment, a plurality of first mounting holes 2111 are arranged in a ring-shaped manner around the center of the mounting plate 211 to form a first mounting hole 2111 group, and the plurality of first mounting hole 2111 groups are arranged in a ring-shaped manner from the center of the mounting plate 211 to the periphery of the mounting plate 211 .

[0046] It is understandable that if Figure 2 As shown, the plurality of first mounting holes 2111 may be arranged in a ring shape around the center of the mounting plate 211, that is, with the center of the mounting plate 211 as the center of the circle, and diffuse away from the center of the mounting plate 211 with a fixed radius, so that a plurality of first mounting holes 2111 are provided on each fixed radius, and a plurality of first mounting hole 2111 groups are formed on different radii, and the plurality of first mounting hole 2111 groups are arranged at intervals along the radial direction, or may be arranged on the mounting plate 211 in a rectangular array, and the number of the first mounting holes 2111 may be reasonably set according to actual production needs. When the quartz sand needs to be cleaned more carefully and for a longer time, the number of the first mounting holes 2111 may be reduced, thereby reducing the number of laminated water filter caps, reducing the amount of acid flowing through, and increasing the pickling time; when the quartz sand needs to be cleaned quickly, the number of the first mounting holes 2111 may be increased to increase the number of laminated water filter caps, thereby achieving rapid filtration and rapid separation.

[0047] In one embodiment, the mounting plate 211 is further provided with a discharge barrel 2112, and the discharge barrel 2112 forms a discharge chamber 2113 connecting the first chamber 111 and the external space, and the discharge chamber 2113 is used to discharge the quartz sand in the first chamber 111; the mounting plate 211 is inclined from the inner wall of the cavity 11 to the discharge barrel 2112 to facilitate the discharge of the quartz sand.

[0048] In this embodiment, if Figure 1 As shown, after the container body 1 pickles the mineral, the mineral needs to be discharged through the bottom of the container body 1, so a discharge pipe is usually provided, and the discharge pipe is connected to the cavity 11 and the external environment. One end of the discharge pipe connected to the cavity 11 is a discharge port, so that the mineral can be discharged to the external environment through the discharge port to achieve mineral sorting. Specifically, a discharge barrel 2112 is provided in the center of the mounting plate 211, and a discharge chamber 2113 connecting the first cavity 111 and the external space is formed in the middle of the discharge barrel 2112, so that the quartz sand in the first cavity 111 can be discharged from the discharge chamber 2113 to the external space after sufficient pickling, and the mounting plate 211 is set at an angle to the central liquid level of the acid solution, that is, the mounting plate 211 is inclined from the side connected to the side wall of the cavity 11 to the discharge barrel 2112 located in the center.

[0049] It can be understood that the lower barrel 2112 is cylindrical and directly passes through the second chamber 112 to connect the first chamber 111 with the external space. At the same time, the reaction bed is inclined toward one end of the lower barrel 2112, which also effectively facilitates the discharge of the fine quartz sand after pickling and purification from the lower barrel 2112, thereby improving the efficiency of pickling of quartz sand.

[0050] In one embodiment, the mounting base 21 includes a plurality of mounting tubes 212, and the plurality of mounting tubes 212 are disposed on the bottom wall of the cavity 11. Each mounting tube 212 is provided with a plurality of second mounting holes 2121 so that each laminated water filter cap can be removably disposed in a second mounting hole 2121, and each laminated water filter cap connects the cavity 11 and the tube cavity of the mounting tube 212.

[0051] It is understandable that if Figure 3 As shown, a plurality of mounting tubes 212 are arranged on the bottom wall of the cavity 11, and a plurality of second mounting holes 2121 are provided on the side of the mounting tube 212 facing away from the bottom wall of the cavity 11, so that each laminated water filter cap is arranged in a second mounting hole 2121. Specifically, a flow outlet is provided at a single end of the tube cavity of the mounting tube 212, and the flow outlet is connected with the plurality of second mounting holes 2121 through the tube cavity of the mounting tube 212, and the flow outlet is connected with the cavity 11, so that the acid liquid can flow into the tube cavity of the mounting tube 212 through the laminated water filter cap, and then flow out from the flow outlet, thereby realizing the separation of the acid liquid and the quartz sand.

[0052] At the same time, multiple mounting tubes 212 are provided with one end of the outflow port close to each other and are all arranged in the center of the bottom wall of the cavity 11. One end of each mounting tube 212 away from the outflow port extends toward the side wall of the cavity 11, so that two adjacent mounting tubes 212 are arranged at an angle, so that the mounting tubes 212 are spaced apart from each other on the bottom wall of the cavity 11.

[0053] Similarly, the laminated water filter cap is detachably arranged in the second mounting hole 2121. For example, an internal thread is arranged on the inner wall of the second mounting hole 2121, and an external thread is arranged on the outer wall of the laminated water filter cap outlet pipe. The laminated water filter cap can be installed in the second mounting hole 2121 by screwing the internal thread and the external thread together, thereby realizing the installation of the laminated water filter cap and the mounting plate 211. Alternatively, a slot is arranged in the second mounting hole 2121, and the laminated water filter cap is inserted into the slot. After ensuring that the laminated water filter cap is fixed in the vertical direction, the laminated water filter cap is easier to disassemble and assemble.

[0054] In one embodiment, the plurality of second mounting holes 2121 are spaced apart along the axial direction of the mounting tube 212 to form a second mounting hole 2121 group, and the plurality of second mounting hole 2121 groups are spaced apart along a direction perpendicular to the axial direction of the mounting tube 212 .

[0055] It is understandable that if Figure 3 As shown, the second mounting holes 2121 are arranged at intervals along the axial direction of the mounting tube 212, and a second mounting hole 2121 group having the same length as the mounting tube 212 is formed in the axial direction of the mounting tube 212. A plurality of second mounting hole 2121 groups are arranged at intervals along a direction perpendicular to the axial direction of the mounting tube 212, and a plurality of second mounting hole 2121 groups are arranged on the side of the mounting tube 212 facing away from the bottom wall of the cavity 11, so as to improve the efficiency of the acid flowing through the laminated water filter cap.

[0056] In one embodiment, the laminated water filter cap includes a filter head and a guide tube. The filter head includes a plurality of laminates. The plurality of laminates are spaced apart at one end of the guide tube. The guide tube is detachably mounted on a mounting base 21 .

[0057] It can be understood that the filter head includes a plurality of laminations, and the plurality of laminations are arranged at intervals, and a liquid gap is formed between two adjacent laminations. The plurality of liquid gaps are connected to the outlet pipe, so that the acid liquid can enter the outlet pipe after passing through the liquid gap, and enter the designated area through the outlet pipe. An adjustment structure is provided at one end of the outlet pipe adjacent to the filter head. The adjustment structure can adjust the size of the gaps between the plurality of laminations. On the one hand, it can adjust the filter aperture to meet different filtering accuracy requirements, and on the other hand, it can change the outflow speed of the acid liquid to meet different pickling time requirements.

[0058] In another embodiment of the utility model, guide grooves are provided on two surfaces of each laminate, and the guide grooves on the opposite surfaces of two adjacent laminates are arranged at an angle, so that fine sand particles can be filtered out through the guide grooves to ensure the purity of the acid solution.

[0059] In one embodiment, the mounting base 21 is provided with a mounting hole, the inner wall of the mounting hole is provided with a first thread, the outer wall of the outlet pipe is provided with a second thread, and the first thread is spirally connected to the second thread so that the laminated water filter cap can be detachably connected to the mounting base 21.

[0060] It can be understood that the mounting hole includes a first mounting hole 2111 and a second mounting hole 2121. The inner wall of the mounting hole on the mounting base 21 is provided with a first thread, and the end of the outlet tube adjacent to the filter head is provided with a second thread. The outlet tube is inserted into the mounting hole, and the second thread and the first thread are screwed together, thereby realizing a detachable connection between the laminated water filter cap and the mounting base 21, thereby facilitating the installation and disassembly of the laminated water filter cap, thereby facilitating the maintenance and maintenance of the filter structure 2 and the pickling device 100 as a whole, and effectively reducing the time and difficulty required to replace a damaged laminated water filter cap, thereby improving the utilization efficiency of the pickling device 100 and improving production efficiency.

[0061] The utility model also provides a mineral processing equipment, which includes a recoil device and the above-mentioned pickling device 100, and the recoil device is used to flush the quartz sand in the chamber 11 of the pickling device 100. The specific structure of the pickling device 100 refers to the above-mentioned embodiment. Since the mineral processing equipment adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0062] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pickling device for cleaning quartz sand with acid, characterized in that: The pickling device comprises: A container body, wherein the container body is formed with a cavity, and the cavity is used to contain the acid liquid; and A filter structure, the filter structure includes a mounting base and a plurality of laminated water filter caps, the mounting base is located in the cavity, the mounting base is connected to the side wall or bottom wall of the cavity, a plurality of laminated water filter caps are arranged on the mounting base, and the filter structure is used to separate quartz sand and acid liquid.

2. The pickling device according to claim 1, characterized in that: The mounting base is a mounting plate, the periphery of which is connected to the side wall of the cavity and divides the cavity into a first cavity and a second cavity along the vertical direction. The first cavity is used to hold quartz sand. A plurality of laminated water filter caps are arranged on the mounting plate, and each of the laminated water filter caps is connected to the first cavity and the second cavity to allow the acid to pass through the filtering structure.

3. The pickling device according to claim 2, characterized in that: The mounting plate is provided with a plurality of first mounting holes, wherein the first mounting holes are connected to the first cavity and the second cavity, and each of the laminated water filter caps is detachably disposed in one of the first mounting holes.

4. The pickling device according to claim 3, characterized in that: The plurality of first mounting holes are arranged in a ring-shaped manner around the center of the mounting plate to form a first mounting hole group. The plurality of first mounting hole groups are arranged in a ring-shaped manner from the center of the mounting plate to the periphery of the mounting plate.

5. The pickling device according to claim 2, characterized in that: The mounting plate is further provided with a discharge barrel, wherein the discharge barrel forms a discharge chamber communicating with the first chamber and an external space, and the discharge chamber is used to discharge the quartz sand in the first chamber; The mounting plate is arranged to be inclined from the inner wall of the cavity to the discharge barrel to facilitate the discharge of the quartz sand.

6. The pickling device according to claim 1, characterized in that: The mounting base includes a plurality of mounting tubes, and the plurality of mounting tubes are arranged on the bottom wall of the cavity. Each of the mounting tubes is provided with a plurality of second mounting holes so that each of the laminated water filter caps can be removably arranged in one of the second mounting holes. Each of the laminated water filter caps is connected to the cavity and the tube cavity of the mounting tube.

7. The pickling device according to claim 6, characterized in that: A plurality of the second mounting holes are arranged at intervals along the axial direction of the mounting tube to form a second mounting hole group. The plurality of the second mounting hole groups are arranged at intervals along a direction perpendicular to the axial direction of the mounting tube.

8. The pickling device according to any one of claims 1 to 7, characterized in that: The laminated water filter cap comprises a filter head and a guide tube, wherein the filter head comprises a plurality of laminates, and the plurality of laminates are arranged at intervals at one end of the guide tube, and the guide tube is detachably arranged on the mounting base.

9. The pickling device according to claim 8, characterized in that: The mounting base is provided with a mounting hole, the inner wall of the mounting hole is provided with a first thread, the outer wall of the outlet pipe is provided with a second thread, and the first thread is spirally connected to the second thread so that the laminated water filter cap can be detachably connected to the mounting base.

10. A mineral processing equipment, characterized in that: The ore dressing equipment comprises: recoil device; and The pickling device according to any one of claims 1 to 9, wherein the recoil device is used to flush the quartz sand in the chamber of the pickling device.

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