Circulating pickling device

Abstract

The utility model discloses a circulating pickling device, which belongs to the technical field of quartz pickling equipment and comprises a pickling solution tank used for storing pickling solution and a quartz material tank arranged on the pickling solution tank and used for storing quartz materials. And the separation filter screen is arranged on the quartz material tank and is used for enabling the pickling solution to enter the quartz material tank and preventing the quartz material from entering the pickling solution tank. When the quartz material pickling device is used, a quartz material and a pickling solution can be added into the quartz material tank, so that the quartz material is soaked in the pickling solution, then the motor can be started, and the scraping rod can be driven to repeatedly scrape the separation filter screen and the inner wall of the quartz material tank under the action of the motor, so that the movement of the quartz material is promoted, and the quartz material is prevented from precipitating; and meanwhile, the stirring rod can horizontally reciprocate and stir the quartz material and the pickling solution in the quartz material tank, the stirring range of the stirring rod can be widened through reciprocating motion of the stirring rod, the quartz material can make full contact with the pickling solution, and the pickling effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz pickling equipment, and specifically relates to a circulating pickling device. Background Technique

[0002] Quartz pickling, also known as acid leaching method, is a process of putting quartz sand into a reactor filled with acidic solution and removing impurities through chemical reactions. Quartz pickling is mainly used to remove iron oxides, other oxides and acid-soluble impurities such as iron, aluminum, titanium, and lithium in quartz sand to improve the purity of quartz sand.

[0003] Chinese Patent Publication No. CN217895157U discloses an energy-saving high-purity quartz sand circulating pickling device. A liquid storage tank for recovering the pickling solution inside the pickling tank is arranged on one side of the pickling tank. An adsorption block for adsorbing impurities and iron ions in the pickling solution is arranged inside the liquid storage tank. A filter screen for further filtering impurities in the pickling solution is arranged on the pickling tank, and vibration components for shaking off the impurities on the filter screen are respectively arranged on both sides of the filter screen. The pickling solution after pickling processing is conveyed into the liquid storage tank, and then the impurities and iron ions in the pickling solution are preliminarily filtered by the adsorption block. The pickling solution after preliminary filtration is re-conveyed into the pickling tank through a water pump. A filter screen is arranged above the pickling tank, and the filter screen will perform secondary filtration on the pickling solution, filtering out the particulate impurities that cannot be adsorbed by the adsorption block in the pickling solution. Through two-stage filtration, the pickling solution can be filtered more effectively.

[0004] In the above-mentioned disclosed prior art, it is necessary to control the rotation of the stirring shaft to stir the quartz and the pickling solution in the pickling cavity to make them fully contact for pickling. However, the height position of the stirring shaft is fixedly set, and its stirring range is limited. When the quartz sand particles are relatively large or have a high density, some quartz sand particles may sink during the stirring process to form precipitation, affecting the pickling effect. Content of the Utility Model

[0005] Aiming at the above-mentioned existing technical deficiencies, the purpose of the utility model is to provide a circulating pickling device to solve some or all of the problems in the above background technique.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A circulating pickling device includes:

[0008] A pickling solution tank for storing pickling solution;

[0009] A quartz material tank arranged on the pickling solution tank for storing quartz materials;

[0010] The separation filter screen is arranged on the quartz material tank and is used to allow the pickling solution to enter the quartz material tank and prevent quartz materials from entering the pickling solution tank;

[0011] The quartz feed hopper and the pickling solution pipe are both arranged on the quartz material tank and are connected to the quartz material tank;

[0012] The discharge port is arranged on the pickling solution tank and the quartz material tank and is connected to the quartz material tank;

[0013] The sealing structure is arranged on the discharge port and is used for sealing;

[0014] The mixing structure is arranged on the quartz material tank and is used to make the quartz materials in the quartz material tank come into full contact with the pickling solution;

[0015] The circulation structure is arranged on the pickling solution tank and the quartz material tank and is used to heat the pickling solution and make it circulate between the pickling solution tank and the quartz material tank;

[0016] Among them, the circulation structure includes a conveying structure for making the pickling solution circulate between the pickling solution tank and the quartz material tank, a heating structure for heating the pickling solution when it circulates, and a filtering structure for filtering the circulating pickling solution.

[0017] Preferably, the sealing structure includes:

[0018] The plugging cover is movably sleeved on the discharge port and is used to plug the discharge port;

[0019] The fixing bolt is threadedly installed on the pickling solution tank. The fixing bolt is movably installed on the plugging cover and is used to prevent the plugging cover from detaching from the discharge port;

[0020] The first sealing cover is threadedly sleeved on the quartz feed hopper and is used to plug the quartz feed hopper;

[0021] The second sealing cover is threadedly sleeved on the pickling solution pipe and is used to plug the pickling solution pipe.

[0022] Preferably, the mixing structure includes:

[0023] The rotating shaft is rotatably installed on the inner wall of the quartz material tank;

[0024] The connecting rod is arranged on the rotating shaft;

[0025] The scraping rod is arranged at one end of the connecting rod;

[0026] The driving assembly is arranged on the rotating shaft and is used to drive the rotating shaft to rotate;

[0027] The stirring assembly is arranged on the rotating shaft and is used to stir the quartz materials in the quartz material tank;

[0028] Among them, the scraping rod is in contact with the inner wall of the quartz material tank and is used to scrape the quartz material in the quartz material tank.

[0029] Preferably, the driving assembly includes:

[0030] The first transmission wheel, sleeved on the rotating shaft;

[0031] The transmission belt, transmission-mounted on the first transmission wheel;

[0032] The second transmission wheel, transmission-mounted on the transmission belt;

[0033] The motor, arranged on the quartz material tank, and the output end of the motor is arranged on the second transmission wheel for driving the second transmission wheel to rotate.

[0034] Preferably, the stirring assembly includes:

[0035] The reciprocating lead screw, slidably installed on the inner wall of the rotating shaft;

[0036] The stirring rod, arranged on the reciprocating lead screw;

[0037] The reciprocating thread sleeve, arranged on one side of the quartz material tank, and the reciprocating thread sleeve is threadedly sleeved on the reciprocating lead screw;

[0038] The guiding chute, opened on the rotating shaft, and the stirring rod is slidably installed in the guiding chute for restricting the moving direction of the stirring rod.

[0039] Preferably, the conveying structure includes:

[0040] The filter box, arranged on one side of the pickling solution tank and communicated with the pickling solution tank;

[0041] The circulating pump, whose water pumping end is arranged on the filter box and communicated with the filter box;

[0042] The spiral tube, arranged on the water delivery end of the circulating pump;

[0043] The conveying pipe, arranged on the quartz material tank and communicated with the quartz material tank, and the conveying pipe is arranged at one end of the spiral tube.

[0044] Preferably, the heating structure includes:

[0045] The heat preservation bin, sleeved on the spiral tube for heat preservation and supporting the spiral tube;

[0046] The electric heating tube, arranged on the inner wall of the heat preservation bin;

[0047] Among them, the electric heating tube is located between the spiral tubes for heating the pickling solution in the spiral tube.

[0048] Preferably, the filtering structure includes:

[0049] A sealing plate, arranged on the filter box;

[0050] A filter plate, arranged below the sealing plate;

[0051] Mounting bolts, threadedly mounted on the filter box, and the mounting bolts are movably mounted on the sealing plate for fixing the sealing plate on the filter box;

[0052] Wherein, the filter plate is movably mounted in the filter box for filtering impurities passing through the filter box.

[0053] The beneficial effects of the present utility model are as follows:

[0054] In the present utility model, when in use, quartz materials and pickling solution can be added into the quartz material tank, so that the quartz materials are immersed in the pickling solution. Then, the motor can be started. Under the action of the motor, the scraping rod can drive to scrape the inner wall of the separation filter screen and the quartz material tank repeatedly, promoting the movement of the quartz materials and preventing them from precipitating. At the same time, the stirring rod can move horizontally back and forth to stir the quartz materials and the pickling solution in the quartz material tank. Through the reciprocating movement of the stirring rod, the stirring range can be increased, so that the quartz materials and the pickling solution can be fully contacted, further improving the pickling effect.

[0055] In the present utility model, by setting the separation filter screen, the pickling solution and the quartz materials can be separated, while not affecting the immersion of the quartz materials in the pickling solution, which is convenient for the circulation pump to extract the pickling solution. When the circulation pump is started, the pickling solution can circulate between the pickling solution tank and the quartz material tank. During this process, the electric heating tube can be started to heat the pickling solution when it passes through the spiral tube. The heated pickling solution can improve its activity and solubility, further enhancing the pickling effect.

[0056] In the present utility model, the pickling solution will pass through the filter box during the circulation process. By arranging a filter plate in the filter box, impurities in the pickling solution can be filtered out, thus preventing the impurities from flowing into the circulation pump and affecting its normal operation, ensuring the normal use of the circulation pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0058] Figure 1 It is a schematic structural diagram of a circulating pickling device provided by an embodiment of the present utility model;

[0059] Figure 2Schematic diagram of the spiral tube structure of a circulating pickling device provided by an embodiment of the present utility model;

[0060] Figure 3 Schematic cross-sectional view of a circulating pickling device provided by an embodiment of the present utility model;

[0061] Figure 4 Schematic diagram of the stirring rod structure of a circulating pickling device provided by an embodiment of the present utility model;

[0062] Figure 5 Schematic diagram of the filter plate structure of a circulating pickling device provided by an embodiment of the present utility model.

[0063] Explanation of reference numerals:

[0064] 1. Acid cleaning solution tank; 2. Quartz material tank; 3. Partition filter screen; 4. Quartz feed hopper; 5. Acid cleaning solution pipe; 6. Discharge port; 601. Plugging cover; 602. Fixing bolt; 603. Sealing cover one; 604. Sealing cover two; 7. Rotating shaft; 701. Connecting rod; 702. Scraping rod; 703. Driving wheel one; 704. Transmission belt; 705. Driving wheel two; 706. Motor; 707. Reciprocating lead screw; 708. Stirring rod; 709. Reciprocating thread sleeve; 710. Guide chute; 8. Filter box; 801. Circulation pump; 802. Spiral tube; 803. Delivery pipe; 804. Heat preservation bin; 805. Electric heating tube; 9. Sealing plate; 901. Filter plate; 902. Installation bolt. Detailed implementation manners

[0065] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0066] Embodiment 1:

[0067] As Figures 1 to 5 shown, the present utility model provides a circulating pickling device, including: an acid cleaning solution tank 1 for storing acid cleaning solution and a quartz material tank 2 arranged on the acid cleaning solution tank 1 for storing quartz materials, a partition filter screen 3 arranged on the quartz material tank 2 for allowing the acid cleaning solution to enter the quartz material tank 2 and preventing quartz materials from entering the acid cleaning solution tank 1, a quartz feed hopper 4 and an acid cleaning solution pipe 5 arranged on the quartz material tank 2 and communicating with the quartz material tank 2, and a discharge port 6 arranged on the acid cleaning solution tank 1 and the quartz material tank 2 and communicating with the quartz material tank 2.

[0068] In order to prevent the precipitation of quartz materials in the quartz material tank 2 and enable the quartz materials to come into full contact with the pickling solution, a sealing structure for sealing is arranged on the discharge port 6, and a mixing structure for enabling the quartz materials in the quartz material tank 2 to come into full contact with the pickling solution is arranged on the quartz material tank 2.

[0069] Among them, the sealing structure includes a plugging cover 601 that is movably sleeved on the discharge port 6 to plug the discharge port 6, a fixing bolt 602 that is threadedly installed on the pickling solution tank 1 to prevent the plugging cover 601 from detaching from the discharge port 6. The fixing bolt 602 is movably installed on the plugging cover 601, a first sealing cover 603 that is threadedly sleeved on the quartz feed hopper 4 to plug the quartz feed hopper 4, and a second sealing cover 604 that is threadedly sleeved on the pickling solution pipe 5 to plug the pickling solution pipe 5. During use, the first sealing cover 603 and the second sealing cover 604 can be opened, and the quartz materials and the pickling solution are respectively poured into the quartz material tank 2 through the quartz feed hopper 4 and the pickling solution pipe 5. The first sealing cover 603 and the second sealing cover 604 can respectively plug the quartz feed hopper 4 and the pickling solution pipe 5 to prevent leakage from the quartz feed hopper 4 and the pickling solution pipe 5 when stirring the quartz materials.

[0070] Among them, the mixing structure includes a rotating shaft 7 rotatably installed on the inner wall of the quartz material tank 2, a connecting rod 701 arranged on the rotating shaft 7, a scraping rod 702 arranged at one end of the connecting rod 701, a driving component arranged on the rotating shaft 7 to drive the rotation of the rotating shaft 7, and a stirring component arranged on the rotating shaft 7 to stir the quartz materials in the quartz material tank 2. The scraping rod 702 is in contact with the inner wall of the quartz material tank 2 and is used to scrape the quartz materials in the quartz material tank 2. When the rotating shaft 7 rotates, it can drive the connecting rod 701 to move in a circular motion, so that the rotating shaft 7 drives the scraping rod 702 to scrape back and forth on the inner wall of the quartz material tank 2, promoting the movement of the quartz materials and preventing the precipitation of the quartz materials in the quartz material tank 2.

[0071] Specifically, the driving component includes a first transmission wheel 703 sleeved on the rotating shaft 7, a transmission belt 704 transmission-mounted on the first transmission wheel 703, a second transmission wheel 705 transmission-mounted on the transmission belt 704, and a motor 706 arranged on the quartz material tank 2 to drive the rotation of the second transmission wheel 705. The output end of the motor 706 is arranged on the second transmission wheel 705. Starting the motor 706 can drive the rotation of the second transmission wheel 705, and the rotating second transmission wheel 705 can drive the rotation of the first transmission wheel 703 through the transmission cooperation with the transmission belt 704, so that the first transmission wheel 703 drives the rotating shaft 7 to rotate on the inner wall of the quartz material tank 2.

[0072] Specifically, the stirring assembly includes a reciprocating lead screw 707 slidably mounted on the inner wall of the rotating shaft 7, a stirring rod 708 arranged on the reciprocating lead screw 707, a reciprocating thread sleeve 709 arranged on one side of the quartz material tank 2, the reciprocating thread sleeve 709 being threadedly sleeved on the reciprocating lead screw 707, a guiding chute 710 opened on the rotating shaft 7 for restricting the moving direction of the stirring rod 708, the stirring rod 708 being slidably mounted in the guiding chute 710. When the rotating shaft 7 rotates, it can drive the reciprocating lead screw 707 to rotate. At the same time, the reciprocating lead screw 707 can rotate and reciprocate within the reciprocating thread sleeve 709 through the threaded cooperation with the reciprocating thread sleeve 709, and finally the stirring rod 708 can reciprocate horizontally while performing a circular motion, improving the stirring range of the stirring rod 708.

[0073] Embodiment 2:

[0074] On the basis of Embodiment 1, in order to improve the activity and solubility of the pickling solution and further enhance its pickling effect, a circulation structure for heating the pickling solution and enabling it to circulate between the pickling solution tank 1 and the quartz material tank 2 is arranged. The circulation structure includes a conveying structure for circulating the pickling solution between the pickling solution tank 1 and the quartz material tank 2 and a heating structure for heating the pickling solution when it circulates.

[0075] Among them, the conveying structure includes a filter box 8 arranged on one side of the pickling solution tank 1 and communicating with the pickling solution tank 1, a circulation pump 801 with its pumping end arranged on the filter box 8 and communicating with the filter box 8, a spiral tube 802 arranged on the water delivery end of the circulation pump 801, a delivery pipe 803 arranged on the quartz material tank 2 and communicating with the quartz material tank 2, the delivery pipe 803 being arranged at one end of the spiral tube 802. When the circulation pump 801 is turned on, it uses the filter box 8 to extract the pickling solution from the pickling solution tank 1 and transport it to the spiral tube 802, and the pickling solution will return to the quartz material tank 2 through the delivery pipe 803.

[0076] Among them, the heating structure includes a heat preservation bin 804 sleeved on the spiral tube 802 for heat preservation and supporting the spiral tube 802, electric heating tubes 805 arranged on the inner wall of the heat preservation bin 804, the electric heating tubes 805 being located between the spiral tubes 802 and used to heat the pickling solution in the spiral tube 802. During the process of the pickling solution flowing in the spiral tube 802, the pickling solution in the spiral tube 802 can be heated under the action of the electric heating tubes 805.

[0077] Embodiment 3:

[0078] On the basis of Embodiment 2, in order to prevent the impurities in the pickling solution from affecting the operation of the circulation pump 801 during the circulation process, a filtering structure is arranged to filter the circulating pickling solution.

[0079] Among them, the filtering structure includes a sealing plate 9 arranged on the filtering box 8, a filtering plate 901 arranged below the sealing plate 9, mounting bolts 902 threadedly installed on the filtering box 8 for fixing the sealing plate 9 to the filtering box 8. The mounting bolts 902 are movably installed on the sealing plate 9, and the filtering plate 901 is movably installed in the filtering box 8 for filtering impurities passing through the filtering box 8. By providing the filtering plate 901, the pickling solution flowing through the filtering box 8 can be filtered to block the impurities in the pickling solution and prevent the impurities from affecting the operation of the circulation pump 801. By rotating the mounting bolts 902, the sealing plate 9 and the filtering plate 901 can be removed for cleaning the impurities.

[0080] Working principle:

[0081] During use, open the sealing cover one 603 and the sealing cover two 604, and pour the quartz material and the pickling solution into the quartz material tank 2 through the quartz feed hopper 4 and the pickling solution pipe 5 respectively. The quartz material will fall on the partition filter screen 3 in the quartz material tank 2, while the pickling solution will flow through the partition filter screen 3 into the pickling solution tank 1, and the quartz material on the partition filter screen 3 can be immersed in the pickling solution. At this time, the motor 706 can be started. The output end of the motor 706 can drive the driven pulley two 705 to rotate. The rotating driven pulley two 705 can drive the driving pulley one 703 to rotate through the transmission cooperation with the transmission belt 704, so that the driving pulley one 703 drives the rotating shaft 7 to rotate on the inner wall of the quartz material tank 2. The continuously rotating rotating shaft 7 can drive the connecting rod 701 to move in a circular motion, so that the rotating shaft 7 drives the scraping rod 702 to scrape back and forth on the inner wall of the quartz material tank 2, promoting the movement of the quartz material and preventing the quartz material in the quartz material tank 2 from settling. At the same time, when the rotating shaft 7 rotates, it can drive the reciprocating screw rod 707 to rotate through the cooperation of the guiding chute 710 and the stirring rod 708. At the same time, the reciprocating screw rod 707 can drive the stirring rod 708 to rotate, stirring the quartz material and the pickling solution in the quartz material tank 2. The rotating reciprocating screw rod 707 can rotate and reciprocate in the reciprocating thread sleeve 709 through the thread cooperation with the reciprocating thread sleeve 709. The reciprocating moving reciprocating screw rod 707 will move in the rotating shaft 7 and drive the stirring rod 708 to reciprocate. The moving stirring rod 708 will move in the guiding chute 710 to avoid deviation. Finally, the stirring rod 708 can reciprocate horizontally while moving in a circular motion, improving the stirring range of the stirring rod 708.

[0082] While stirring the material, the circulation pump 801 and the electric heating tube 805 can be turned on, so that the pickling solution in the pickling solution tank 1 is pumped out by the filter box 8 and conveyed to the spiral tube 802. Under the action of the electric heating tube 805, the pickling solution in the spiral tube 802 can be heated. The heated pickling solution will return to the quartz material tank 2 through the delivery pipe 803, realizing the heating and circulation of the pickling solution. Heating can improve the activity and solubility of the pickling solution and enhance the pickling effect. By setting the filter plate 901, the pickling solution flowing through the filter box 8 can be filtered to block the impurities in the pickling solution and prevent the impurities from affecting the operation of the circulation pump 801. By rotating the mounting bolt 902, the sealing plate 9 and the filter plate 901 can be removed to clean the impurities.

[0083] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A circulating pickling device, characterized in that, Comprising: An acid cleaning solution tank (1) for storing acid cleaning solution; A quartz material tank (2) arranged on the acid cleaning solution tank (1) for storing quartz materials; A partition filter screen (3) arranged on the quartz material tank (2) for allowing the acid cleaning solution to enter the quartz material tank (2) and preventing the quartz materials from entering the acid cleaning solution tank (1); A quartz feed hopper (4) and an acid cleaning solution pipe (5), both arranged on the quartz material tank (2) and communicating with the quartz material tank (2); A discharge port (6) arranged on the acid cleaning solution tank (1) and the quartz material tank (2) and communicating with the quartz material tank (2); A sealing structure arranged on the discharge port (6) for sealing; A mixing structure arranged on the quartz material tank (2) for enabling the quartz materials in the quartz material tank (2) to be in full contact with the acid cleaning solution; A circulation structure arranged on the acid cleaning solution tank (1) and the quartz material tank (2) for heating the acid cleaning solution and making it circulate between the acid cleaning solution tank (1) and the quartz material tank (2); Wherein, the circulation structure includes a conveying structure for making the acid cleaning solution circulate between the acid cleaning solution tank (1) and the quartz material tank (2), a heating structure for heating the acid cleaning solution when it circulates, and a filtering structure for filtering the circulating acid cleaning solution.

2. The cyclic pickling device according to claim 1, characterized in that, The sealing structure includes: A plugging cover (601) movably sleeved on the discharge port (6) for plugging the discharge port (6); A fixing bolt (602) threadedly installed on the acid cleaning solution tank (1), and the fixing bolt (602) is movably installed on the plugging cover (601) for preventing the plugging cover (601) from detaching from the discharge port (6); A first sealing cover (603) threadedly sleeved on the quartz feed hopper (4) for plugging the quartz feed hopper (4); A second sealing cover (604) threadedly sleeved on the acid cleaning solution pipe (5) for plugging the acid cleaning solution pipe (5).

3. The circulating pickling device according to claim 1, characterized in that, The mixing structure includes: A rotating shaft (7) rotatably installed on the inner wall of the quartz material tank (2); A connecting rod (701) arranged on the rotating shaft (7); A scraping rod (702) arranged at one end of the connecting rod (701); A driving assembly arranged on the rotating shaft (7) for driving the rotating shaft (7) to rotate; A stirring assembly arranged on the rotating shaft (7) for stirring the quartz materials in the quartz material tank (2); Wherein, the scraping rod (702) is in contact with the inner wall of the quartz material tank (2) for scraping the quartz materials in the quartz material tank (2).

4. The circulating pickling device according to claim 3, characterized in that, The driving assembly includes: A first transmission wheel (703) sleeved on the rotating shaft (7); A transmission belt (704) transmission-installed on the first transmission wheel (703); A second transmission wheel (705) transmission-installed on the transmission belt (704); A motor (706) arranged on the quartz material tank (2), and the output end of the motor (706) is arranged on the second transmission wheel (705) for driving the second transmission wheel (705) to rotate.

5. The circulating pickling device according to claim 3, characterized in that, The stirring assembly includes: A reciprocating lead screw (707) slidably installed on the inner wall of the rotating shaft (7); A stirring rod (708) arranged on the reciprocating lead screw (707); The reciprocating threaded sleeve (709) is arranged on one side of the quartz material tank (2), and the reciprocating threaded sleeve (709) is threadedly sleeved on the reciprocating lead screw (707); The guiding chute (710) is opened on the rotating shaft (7), and the stirring rod (708) is slidably installed in the guiding chute (710) for restricting the moving direction of the stirring rod (708).

6. The circulating pickling device according to claim 1, characterized in that, The conveying structure includes: The filter box (8) is arranged on one side of the pickling solution tank (1) and is communicated with the pickling solution tank (1); The circulating pump (801) has its water pumping end arranged on the filter box (8) and is communicated with the filter box (8); The spiral tube (802) is arranged on the water delivery end of the circulating pump (801); The conveying pipe (803) is arranged on the quartz material tank (2) and is communicated with the quartz material tank (2), and the conveying pipe (803) is arranged at one end of the spiral tube (802).

7. The circulating pickling device according to claim 1, characterized in that, The heating structure includes: The heat preservation bin (804) is sleeved on the spiral tube (802) for heat preservation and supporting the spiral tube (802); The electric heating tube (805) is arranged on the inner wall of the heat preservation bin (804); Wherein, the electric heating tube (805) is located between the spiral tubes (802) for heating the pickling solution in the spiral tube (802).

8. The circulating pickling device according to claim 1, characterized in that, The filtering structure includes: The sealing plate (9) is arranged on the filter box (8); The filter plate (901) is arranged below the sealing plate (9); The mounting bolt (902) is threadedly installed on the filter box (8), and the mounting bolt (902) is movably installed on the sealing plate (9) for fixing the sealing plate (9) on the filter box (8); Wherein, the filter plate (901) is movably installed in the filter box (8) for filtering impurities passing through the filter box (8).

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