An energy-saving and environmentally friendly quartz acid washing and purification device

Abstract

This invention relates to the field of quartz sand purification technology and discloses an energy-saving and environmentally friendly quartz acid washing and purification device, comprising: an acid washing tower, an annular nozzle assembly, multiple directional ultrasonic transducers, and a solid-liquid separation component. An acid washing space is formed within the acid washing tower; a feed channel is provided at the top of the acid washing tower, connecting the external environment and the acid washing space; the annular nozzle assembly includes a liquid delivery ring and multiple nozzles; the liquid delivery ring is located in the acid washing tower and extends circumferentially along the tower; directional ultrasonic transducers are installed on the liquid delivery ring, with their ultrasonic radiation direction facing the axis of the acid washing tower; the multiple nozzles and multiple directional ultrasonic transducers are distributed at intervals along the circumference of the liquid delivery ring; the solid-liquid separation component includes a conveying mechanism, a collection tank, and a storage tank; the conveying mechanism is connected to the bottom of the acid washing tower via a discharge pipe; the storage tank is connected to the conveying end of the conveying mechanism. This achieves continuous acid washing.

Description

Technical Field

[0001] This invention relates to the field of quartz sand purification technology, and in particular to an energy-saving and environmentally friendly quartz acid washing and purification device. Background Technology

[0002] With the increasingly widespread application of high-purity quartz sand in photovoltaic semiconductors, optical glass and new materials, the requirements for the purity of quartz sand are also constantly increasing. In the existing quartz sand purification process, acid washing is still the core step in removing surface metal oxides and impurities.

[0003] In existing technologies, quartz acid washing and purification devices mostly adopt static soaking or mechanical stirring methods. The acid solution is usually discharged directly after single use, which not only leads to high acid consumption and high production costs, but also generates a large amount of difficult-to-treat waste acid and acid-containing wastewater, resulting in the problem of not being able to continuously and rapidly acid wash. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an energy-saving and environmentally friendly quartz acid washing and purification device that realizes continuous acid washing.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An energy-saving and environmentally friendly quartz acid washing and purification device includes:

[0007] A pickling tower, wherein an pickling space is formed inside the pickling tower; a feed channel is provided at the top of the pickling tower, and the feed channel connects the external environment and the pickling space;

[0008] An annular nozzle assembly includes a liquid delivery ring and multiple nozzles; the liquid delivery ring is disposed in the pickling tower and extends circumferentially along the pickling tower; the nozzles are connected to the liquid delivery ring, and the spraying ends of the nozzles are located within the pickling space; the multiple nozzles are distributed at intervals circumferentially along the liquid delivery ring; the nozzles are used to spray acid into the pickling space.

[0009] Multiple directional ultrasonic transducers are installed on the infusion ring, and the multiple directional ultrasonic transducers are distributed at intervals along the circumference of the infusion ring. The ultrasonic radiation direction of the directional ultrasonic transducers is towards the axis of the acid washing tower.

[0010] A solid-liquid separation component includes a conveying mechanism, a collection tank, and a storage tank. The conveying mechanism is connected to the bottom of the pickling tower via a discharge pipe and is used to convey the pickled quartz. The collection tank is connected to the conveying mechanism, and a first filter screen is provided at the connection between the collection tank and the conveying mechanism. The first filter screen is located at the bottom or side wall of the connection between the collection tank and the conveying mechanism and is used to separate acid and quartz. The storage tank is connected to the conveying end of the conveying mechanism and is used to store the pickled quartz.

[0011] Furthermore, the nozzle is inclined circumferentially along the infusion ring and is arranged to be inclined downward in the vertical direction.

[0012] Furthermore, the inclination angle of the nozzle along the circumferential direction of the infusion ring is 10° to 45°, and the inclination angle of the nozzle along the vertical direction is 15° to 60°.

[0013] Furthermore, the pickling tower includes an upper section and a lower section; the upper section, the liquid delivery ring, and the lower section are arranged in a vertically stacked manner; the area of ​​the outer contour of the inner wall cross-section of the lower section gradually narrows downwards along the vertical direction.

[0014] Further, the conveying mechanism includes a tube body, a central shaft, helical blades, and a rotary drive mechanism; the tube body extends horizontally, and a conveying channel is formed inside the tube body; the discharge pipe is connected to the tube body, and the discharge pipe connects the pickling space and the conveying channel; the storage tank is installed at the extended end of the tube body, and the conveying channel connects to the internal space of the storage tank; the central shaft is rotatably installed inside the tube body, and the central shaft extends along the extension direction of the tube body until it abuts against the side wall of the storage tank; the helical blades extend helically around the axis of the central shaft along the extension direction of the central shaft; the drive end of the rotary drive mechanism is driven and connected to the central shaft.

[0015] Furthermore, a liquid collection hole is provided on the lower side wall of the pipe body, the liquid collection hole is connected to the liquid collection tank and the conveying channel, the first filter screen is installed in the liquid collection hole, and the first filter screen extends along the circumference of the pipe body and covers the liquid collection hole.

[0016] Furthermore, an annular baffle is installed at the opening of the feed channel; the annular baffle extends radially outward and downward along the pickling tower; the height of the top surface of the extended end of the annular baffle is lower than the height of the lower edge of the opening.

[0017] Furthermore, the energy-saving and environmentally friendly quartz acid washing and purification device also includes an acid circulation component; the acid circulation component includes a circulation pipe and an acid pump; the circulation pipe connects the collection tank and the delivery ring; the acid pump is used to transport the acid in the collection tank to the delivery ring through the circulation pipe.

[0018] Furthermore, the liquid collection tank is provided with a second filter screen; the second filter screen is located below the first filter screen, and the second filter screen extends horizontally to cover and divide the liquid collection tank into an upper chamber and a lower chamber.

[0019] Furthermore, the energy-saving and environmentally friendly quartz acid washing and purification device also includes an induced draft fan, which is installed at the top of the acid washing tower. The air inlet of the induced draft fan is connected to the acid washing space, and the induced draft fan is used to create a slight negative pressure in the acid washing space. The induced draft fan has a built-in acid mist condensation structure, which is used to condense and return the acid mist to the acid washing space.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. An acid pickling space is formed inside the acid pickling tower; a feed channel is provided at the top of the acid pickling tower, which connects the external environment and the acid pickling space; the annular nozzle component includes a liquid conveying ring and multiple nozzles; the liquid conveying ring is located in the acid pickling tower and extends circumferentially along the acid pickling tower; the nozzles are connected to the liquid conveying ring, and the spraying end of the nozzles is located within the acid pickling space; directional ultrasonic transducers are installed on the liquid conveying ring, and multiple directional ultrasonic transducers are distributed at intervals along the circumference of the liquid conveying ring, with the ultrasonic radiation direction of the directional ultrasonic transducers facing the axis of the acid pickling tower; the solid-liquid separation component includes a conveying mechanism, a collection tank, and a storage tank; the conveying mechanism is connected to the bottom of the acid pickling tower through a discharge pipe, and the conveying mechanism is used to convey the acid-washed quartz; the collection tank is connected to the conveying mechanism; the storage tank is connected to the conveying end of the conveying mechanism, and the storage tank is used to store the acid-washed quartz. The enclosed pickling space isolates external impurities and acid mist leakage, ensuring purification purity while reducing environmental impact. The feeding channel, in conjunction with an external conveying device, ensures a continuous supply of quartz raw materials, laying the foundation for continuous pickling. The circumferentially arranged annular nozzles ensure that the acid solution evenly covers the pickling area, ensuring full contact between the quartz and the acid solution and improving pickling uniformity. The directional ultrasonic transducer radiates energy along its axis, concentrating its effect on the quartz area, enhancing the reaction between the acid solution and surface impurities, and accelerating the purification process. The discharge pipe connects the bottom of the pickling tower to the conveying mechanism, promptly discharging the pickled quartz and preventing accumulation inside the tower. Together with the conveying mechanism, collection tank, and storage tank, it achieves continuous conveying of pickled materials, acid collection, and finished product storage, realizing an integrated continuous operation mode. The entire process can be completed without stopping the machine, significantly improving production efficiency. At the same time, it creates conditions for acid recycling, reducing acid consumption, and achieving both high-efficiency purification and energy conservation and environmental protection, thus realizing continuous pickling.

[0022] 2. A first filter screen is installed at the connection between the collection tank and the conveying mechanism. The first filter screen is located at the bottom or side wall of the connection between the collection tank and the conveying mechanism. The first filter screen is used to separate acid and quartz. The first filter screen is located at the bottom or side wall of the connection between the collection tank and the conveying mechanism. During the conveying of acid-washed quartz by the conveying mechanism, it can efficiently intercept quartz particles, while allowing acid adhering to the quartz surface and mixed in the quartz to pass through smoothly and flow into the collection tank, realizing the rapid and thorough separation of acid and quartz. The installation position at the bottom or side wall does not hinder the normal conveying of quartz in the conveying mechanism, avoiding material jamming and blockage, and can maximize the use of gravity to allow the acid to drip or flow naturally into the collection tank, improving the separation efficiency. The separated acid can be recycled and reused, reducing acid waste and waste liquid discharge, which meets the requirements of energy conservation and environmental protection. At the same time, there is no excess acid residue in the separated quartz, which is convenient for subsequent storage and further processing, ensuring the quality of quartz purification. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an energy-saving and environmentally friendly quartz acid washing and purification device according to the present invention;

[0024] Figure 2 for Figure 1 A sectional view;

[0025] Figure 3 for Figure 1 A cross-sectional view of the solid-liquid separation component shown.

[0026] In the diagram: 1. Pickling tower; 11. Pickling space; 12. Feed channel; 121. Annular baffle; 13. Discharge pipe; 14. Upper section; 15. Lower section; 2. Annular nozzle assembly; 21. Liquid conveying ring; 22. Nozzle; 3. Directional ultrasonic transducer; 4. Solid-liquid separation assembly; 41. Conveying mechanism; 411. Pipe body; 4111. Conveying channel; 412. Central shaft; 413. Spiral blade; 414. Rotary drive mechanism; 42. Collection tank; 421. First filter screen; 422. Second filter screen; 423. Upper chamber; 424. Lower chamber; 43. Storage tank; 5. Acid circulation assembly; 51. Circulation pipe; 52. Acid pump; 6. Exhaust fan. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] See Figures 1-3 The present invention provides an energy-saving and environmentally friendly quartz acid washing and purification device, comprising: an acid washing tower 1, an annular nozzle component 2, multiple directional ultrasonic transducers 3, and a solid-liquid separation component 4.

[0031] The pickling tower 1 forms an pickling space 11 inside; the top of the pickling tower 1 is equipped with a feed channel 12, which connects the external environment and the pickling space 11. The pickling tower 1 provides an independent reaction environment for quartz pickling through the enclosed pickling space 11, which can prevent external impurities from entering and affecting the purity of quartz, and at the same time reduce the outward diffusion of acid mist. The feed channel 12 directly connects the external environment and the pickling space 11, and the external conveying device can continuously feed the quartz to be treated into the pickling space 11 through the feed channel 12, so that the quartz can enter the subsequent process.

[0032] The annular nozzle component 2 includes a liquid conveying ring 21 and multiple nozzles 22. The liquid conveying ring 21 is located in the pickling tower 1 and extends circumferentially along the pickling tower 1. The nozzles 22 are connected to the liquid conveying ring 21, and the spraying ends of the nozzles 22 are located within the pickling space 11. The multiple nozzles 22 are distributed at intervals along the circumference of the liquid conveying ring 21. The nozzles 22 are used to spray acid into the pickling space 11. The liquid conveying ring 21, as the carrier of the acid, can distribute the acid to each nozzle 22, ensuring that the acid can be stably sprayed into the pickling space 11 through the nozzles 22. The design of multiple nozzles 22 distributed at intervals along the circumference of the liquid conveying ring 21 allows the acid to cover the entire pickling space 11, avoiding insufficient pickling in some areas. At the same time, it allows the acid to fully contact the quartz, improving the efficiency of pickling and purification, ensuring that each quartz particle can fully react with the acid, and guaranteeing the purification effect.

[0033] A directional ultrasonic transducer 3 is installed on the infusion ring 21. Multiple directional ultrasonic transducers 3 are distributed circumferentially along the infusion ring 21, with the ultrasonic radiation direction of the directional ultrasonic transducer 3 facing the axis of the pickling tower 1. The directional ultrasonic transducer 3 (focused piezoelectric ceramic ultrasonic transducer, cylindrical directional emission ultrasonic transducer, or slit beam ultrasonic transducer) is installed on the infusion ring 21 and works in conjunction with the nozzle 22, infusion pipeline, and other components. The ultrasonic radiation direction is facing the axis of the pickling tower 1, which allows the ultrasonic energy to act directly on the pickling area, promotes full contact between the acid and quartz, enhances the pickling effect, reduces acid waste and environmental pollution, ensures that the entire pickling process is efficient and orderly, and further improves the quality and efficiency of quartz purification.

[0034] The solid-liquid separation component 4 includes a conveying mechanism 41, a collection tank 42, and a storage tank 43. The conveying mechanism 41 is connected to the bottom of the pickling tower 1 through a discharge pipe 13 and is used to convey the pickled quartz. The collection tank 42 is connected to the conveying mechanism 41, and a first filter screen 421 is provided at the connection between the collection tank 42 and the conveying mechanism 41. The first filter screen 421 is located at the bottom or side wall of the connection between the collection tank 42 and the conveying mechanism 41 and is used to separate acid and quartz. The storage tank 43 is connected to the conveying end of the conveying mechanism 41 and is used to store the pickled quartz. The conveying mechanism 41 receives and transports the pickled quartz from the bottom of the pickling tower 1 via the discharge pipe 13. The collection tank 42 is connected to the conveying mechanism 41, and the first filter screen 421 is located at the bottom or side wall of the connection point. This filter screen can filter the acid adhering to the surface of the quartz or mixed in the quartz into the collection tank 42 while the quartz is being transported, thus achieving effective separation of the acid and quartz. The separated quartz is continuously transported by the conveying mechanism 41 to the storage tank 43 for centralized storage, ensuring complete separation of the quartz and acid, and facilitating acid recovery and reuse as well as subsequent quartz processing. Meanwhile, the solid-liquid separation component 4, together with the annular nozzle component 2, the directional ultrasonic transducer 3, and the feed channel 12, forms a complete continuous production process, realizing continuous pickling.

[0035] The working principle of the energy-saving and environmentally friendly quartz acid washing and purification device of the present invention is as follows: the external conveying device sends the quartz raw material into the acid washing space 11 through the feeding channel 12, and the annular nozzle component 2 continuously sprays acid into the acid washing space 11 to make the acid fully contact the quartz. At the same time, the directional ultrasonic transducer 3 radiates ultrasonic energy in the direction of the axis of the acid washing tower 1 to enhance the cleaning and purification reaction of the acid on the quartz. The quartz acid mixture after acid washing enters the discharge pipe 13 at the bottom of the acid washing tower 1 under the action of gravity, and is transported to the conveying mechanism 41 through the discharge pipe 13. During the process of conveying the quartz forward, the acid in the quartz acid mixture is separated by the blocking effect of the first filter screen 421 and flows into the collection tank 42 to achieve solid-liquid separation. The separated quartz is finally transported to the storage tank 43 for storage. The whole process is carried out continuously without interruption, which not only ensures the quartz acid washing and purification effect, but also realizes acid recovery, achieving the purpose of energy saving, environmental protection and continuous production, and at the same time realizes continuous acid washing.

[0036] An acid washing space 11 is formed inside the acid washing tower 1; a feed channel 12 is provided at the top of the acid washing tower 1, which connects the external environment and the acid washing space 11; the annular nozzle component 2 includes a liquid conveying ring 21 and multiple nozzles 22; the liquid conveying ring 21 is located in the acid washing tower 1 and extends circumferentially along the acid washing tower 1; the nozzles 22 are connected to the liquid conveying ring 21, and the spraying end of the nozzles 22 is located inside the acid washing space 11; directional ultrasonic transducers 3 are installed on the liquid conveying ring 21, and multiple directional ultrasonic transducers 3 The ultrasonic transducers 3 are distributed circumferentially along the liquid conveying ring 21, and their ultrasonic radiation direction is towards the axis of the pickling tower 1. The solid-liquid separation component 4 includes a conveying mechanism 41, a collection tank 42, and a storage tank 43. The conveying mechanism 41 is connected to the bottom of the pickling tower 1 through the discharge pipe 13 and is used to convey the pickled quartz. The collection tank 42 is connected to the conveying mechanism 41. The storage tank 43 is connected to the end of the conveying mechanism 41 and is used to store the pickled quartz. The enclosed pickling space 11 isolates external impurities and acid mist leakage, ensuring purification purity while reducing environmental impact. The feed channel 12, in conjunction with the external conveying device, ensures a continuous supply of quartz raw materials, laying the foundation for continuous pickling. The circumferentially arranged annular nozzles 22 ensure that the acid solution evenly covers the pickling area, ensuring full contact between the quartz and the acid solution and improving pickling uniformity. The directional ultrasonic transducer 3 radiates energy along its axis, concentrating its effect on the quartz area, enhancing the reaction between the acid solution and surface impurities, and accelerating the purification process. The discharge pipe 13 connects the bottom of the pickling tower 1 with the conveying mechanism 41, promptly discharging the pickled quartz and preventing accumulation inside the tower. In conjunction with the conveying mechanism 41, the collection tank 42, and the storage tank 43, it realizes continuous conveying of pickled materials, acid collection, and finished product storage, achieving an integrated continuous operation mode. The entire process can be completed without stopping the machine, significantly improving production efficiency. At the same time, it creates conditions for acid recycling, reducing acid consumption, and achieving both high-efficiency purification and energy conservation and environmental protection, thus realizing continuous pickling.

[0037] A first filter screen 421 is provided at the connection between the liquid collection tank 42 and the conveying mechanism 41. The first filter screen 421 is located at the bottom or side wall of the connection between the liquid collection tank 42 and the conveying mechanism 41. The first filter screen 421 is used to separate acid and quartz. The first filter screen 421 is located at the connection between the collection tank 42 and the conveying mechanism 41, at the bottom or side wall of the connection. It can efficiently intercept quartz particles during the conveying process of acid-washed quartz in the conveying mechanism 41, while allowing the acid adhering to the quartz surface and mixed in the quartz to pass through smoothly and flow into the collection tank 42, achieving rapid and thorough separation of acid and quartz. The installation position at the bottom or side wall does not obstruct the normal conveying of quartz in the conveying mechanism 41, avoiding material jamming and blockage, and can maximize the use of gravity to allow the acid to drip or flow naturally into the collection tank 42, improving separation efficiency. The separated acid can be recycled and reused, reducing acid waste and waste discharge, meeting the requirements of energy conservation and environmental protection. At the same time, there is no excess acid residue in the separated quartz, which is convenient for subsequent storage and further processing, ensuring the quality of quartz purification.

[0038] Preferably, the nozzle 22 is inclined circumferentially along the infusion ring 21 and vertically downward. The circumferentially inclined arrangement of the nozzle 22 allows the sprayed acid to form a swirling state within the pickling space 11. Combined with the vertically downward inclination angle, this not only allows the acid to create a continuous swirling scouring effect around the quartz, enabling more thorough removal and reaction of impurities on the quartz surface, but also extends the contact path and reaction time between the acid and the quartz, further improving the uniformity and thoroughness of the pickling purification.

[0039] Preferably, the nozzle 22 has a circumferential tilt angle of 10° to 45° along the infusion ring 21, and a vertical tilt angle of 15° to 60°. Controlling the circumferential tilt angle to 10° to 45° can stably form a vortex of moderate intensity, ensuring the vortex scouring effect of the acid on the quartz without causing quartz splashing or excessive acid atomization due to excessive vortex. The vertical tilt angle of 15° to 60° can adapt to the natural falling trajectory of the quartz in the pickling space 11, prolonging the contact time between the acid and the quartz, while ensuring complete acid coverage, thus balancing the adequacy of pickling with the continuity of the overall process.

[0040] Preferably, the pickling tower 1 includes an upper section 14 and a lower section 15; the upper section 14, the liquid conveying ring 21, and the lower section 15 are arranged in a vertically stacked manner; the area of ​​the outer contour of the inner wall cross-section of the lower section 15 gradually narrows downwards in the vertical direction. The downward narrowing of the inner wall of the lower section 15 can guide and gather the swirling acid and quartz, allowing the quartz and acid to flow more smoothly towards the discharge pipe 13, avoiding material stagnation and accumulation on the bottom sidewall of the tower, and further enhancing the swirling effect of the acid, allowing the acid and quartz to maintain full contact during the downward flow, thereby improving the pickling utilization rate and the smoothness of the discharge.

[0041] Preferably, the conveying mechanism 41 includes a tube 411, a central shaft 412, a spiral blade 413, and a rotary drive mechanism 414; the tube 411 extends horizontally, and a conveying channel 4111 is formed inside the tube 411; the discharge pipe 13 is connected to the tube 411, and the discharge pipe 13 connects the pickling space 11 and the conveying channel 4111; the storage tank 43 is installed at the extended end of the tube 411, and the conveying channel 4111 connects to the internal space of the storage tank 43; the central shaft 412 is rotatably installed inside the tube 411, and the central shaft 412 extends along the extension direction of the tube 411 until it abuts against the side wall of the storage tank 43; the spiral blade 413 extends spirally around the axis of the central shaft 412 along the extension direction of the central shaft 412; the drive end of the rotary drive mechanism 414 drives and connects to the central shaft 412. The central shaft 412 provides mounting support for the spiral blades 413 and transmits rotational power. When the spiral blades 413 rotate, they can push the material towards the storage box 43. The rotational drive mechanism 414 (gear reduction motor, variable frequency speed control motor) provides rotational power to the central shaft 412, driving the spiral blades 413 to rotate, thereby smoothly conveying the material to the storage box 43, realizing continuous and orderly material conveying, ensuring the smooth progress of the overall production process, which is conducive to realizing continuous and large-scale production, improving the overall working time utilization rate of the equipment, reducing the allocation of fuel costs in the unit product production cost, and achieving energy-saving and efficient operation in conjunction with the overall device.

[0042] Preferably, a liquid collection hole is provided on the lower side wall of the pipe body 411, which connects the liquid collection tank 42 and the conveying channel 4111. A first filter screen 421 is installed in the liquid collection hole and extends circumferentially along the pipe body 411, covering the liquid collection hole. The liquid collection hole, together with the circumferentially extending first filter screen 421, enables continuous and large-area separation of acid during the quartz spiral conveying process, allowing the acid to quickly pass through the filter screen and flow into the liquid collection tank 42. At the same time, it effectively prevents quartz particles from entering the liquid collection tank 42, ensuring solid-liquid separation efficiency while avoiding filter screen clogging and material leakage. This allows acid recovery and quartz conveying to proceed simultaneously, further improving the reliability of continuous operation of the device.

[0043] Preferably, an annular baffle 121 is installed at the opening of the feed channel 12; the annular baffle 121 extends radially outward and downward along the pickling tower 1; the height of the top surface of the extended end of the annular baffle 121 is lower than the height of the lower edge of the opening. This structure can shield and guide the feed channel 12, preventing the quartz raw material from splashing outward when falling in, and blocking the acid mist in the pickling space 11 from escaping from the feed channel 12, while not affecting the normal and smooth falling of the quartz, thus further improving the environmental protection effect while ensuring continuous feeding.

[0044] In addition, an energy-saving and environmentally friendly quartz acid pickling and purification device also includes an acid circulation component 5; the acid circulation component 5 includes a circulation pipe 51 and an acid pump 52; the circulation pipe 51 connects the collection tank 42 and the delivery ring 21; the acid pump 52 is used to transport the acid in the collection tank 42 to the delivery ring 21 through the circulation pipe 51. The acid circulation component 5, in cooperation with the acid pump 52 (fluoroplastic centrifugal pump or PTFE-lined magnetic pump) through the circulation pipe 51, realizes closed-loop recycling of acid, reduces acid consumption and waste discharge, reduces acid consumption from the source, and significantly reduces the amount of acidic wastewater that needs to be transported to the sewage treatment plant, reducing the combustion and operating costs of the sewage treatment process, reducing production costs and environmental pollution; at the same time, it continuously provides a stable acid supply to the delivery ring 21, ensuring stable spray pressure and acid concentration of the nozzle 22, so that the continuous acid pickling operation always maintains a high efficiency and consistent purification effect.

[0045] Preferably, a second filter screen 422 is provided inside the collection tank 42. The second filter screen 422 is located below the first filter screen 421 and extends horizontally to cover the collection tank 42, dividing it into an upper chamber 423 and a lower chamber 424. The second filter screen 422 can perform secondary filtration on the acid solution separated by the first filter screen 421, further filtering out residual fine quartz particles in the acid solution. This prevents particles from entering the nozzle 22 with the acid solution and causing blockage, ensuring the long-term unobstructed flow of the acid solution circulation pipe 51 and the nozzle 22. Simultaneously, it makes the acid solution entering the circulation purer, ensuring stable pickling effect and improving the reliability of continuous operation of the device. Both the first filter screen 421 and the second filter screen 422 can be made of 304 / 316L stainless steel wedge wire mesh, polypropylene (PP) filter mesh, or polytetrafluoroethylene (PTFE) sintered mesh.

[0046] In addition, an energy-saving and environmentally friendly quartz acid washing and purification device also includes an induced draft fan 6, which is installed at the top of the acid washing tower 1. The air inlet of the induced draft fan 6 is connected to the acid washing space 11. The induced draft fan 6 is used to form a slight negative pressure in the acid washing space 11. The induced draft fan 6 has a built-in acid mist condensation structure, which is used to condense and return the acid mist to the acid washing space 11. The induced draft fan 6 (high-pressure centrifugal induced draft fan 6 or small axial flow induced draft fan 6) is installed at the top of the pickling tower 1 and its air inlet is connected to the pickling space 11. After starting, it can form a slight negative pressure in the pickling space 11, which can prevent the acid mist generated during the pickling process from leaking out from the feed channel 12 and other openings, avoiding acid mist pollution of the environment and corrosion of equipment. It can also guide the airflow circulation in the pickling space 11, allowing the acid mist to flow to the induced draft fan 6. The acid mist condensation structure built into the induced draft fan 6 (tube condenser, serpentine coil condenser or finned condensation module) can condense the inhaled acid mist, converting the gaseous acid mist into liquid acid, and then return it to the pickling space 11 to realize the recycling and reuse of acid, further reducing acid loss and discharge, continuously reducing the fuel cost and environmental protection pressure of the wastewater treatment plant for acid-containing wastewater, reducing acid consumption and wastewater discharge, reducing production costs, and at the same time avoiding the direct emission of acid mist from causing harm to the health of operators and the surrounding environment.

[0047] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0048] 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 application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An energy-saving and environment-friendly quartz pickling purification device, characterized in that, The application relates to an acid pickling tower. The acid pickling tower (1) is internally formed with an acid pickling space (11); the top of the acid pickling tower (1) is provided with a feeding channel (12) which is communicated with the outside environment and the acid pickling space (11); The annular spray head component (2) comprises a liquid feeding ring (21) and a plurality of spray heads (22); the liquid feeding ring (21) is arranged on the acid pickling tower (1) and extends along the circumference of the acid pickling tower (1); the spray heads (22) are connected to the liquid feeding ring (21) and the spraying ends of the spray heads (22) are located in the acid pickling space (11); the plurality of spray heads (22) are distributed along the circumference of the liquid feeding ring (21) at intervals; the spray heads (22) are used for spraying acid liquid into the acid pickling space (11); A plurality of directional ultrasonic vibrators (3) are arranged on the liquid feeding ring (21) and distributed along the circumference of the liquid feeding ring (21) at intervals; the ultrasonic radiation direction of the directional ultrasonic vibrators (3) is towards the axis of the acid pickling tower (1); The solid-liquid separation component (4) comprises a conveying mechanism (41), a liquid collecting tank (42) and a storage tank (43); the conveying mechanism (41) is connected to the bottom of the acid pickling tower (1) through a discharging pipe (13) and is used for conveying the pickled quartz; the liquid collecting tank (42) is communicated with the conveying mechanism (41) and a first filter screen (421) is arranged at the communication position between the liquid collecting tank (42) and the conveying mechanism (41); the first filter screen (421) is arranged at the bottom or the side wall of the communication position between the liquid collecting tank (42) and the conveying mechanism (41) and is used for separating the acid liquid and the quartz; the storage tank (43) is communicated with the conveying end of the conveying mechanism (41) and is used for storing the pickled quartz.

2. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The spray heads (22) are inclined along the circumference of the liquid feeding ring (21) and are arranged in a downward inclined manner along the vertical direction.

3. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 2, characterized in that, The inclination angle of the spray heads (22) along the circumference of the liquid feeding ring (21) is 10-45 degrees and the inclination angle of the spray heads (22) along the vertical direction is 15-60 degrees.

4. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The acid pickling tower (1) comprises an upper layer (14) and a lower layer (15); the upper layer (14), the liquid feeding ring (21) and the lower layer (15) are arranged in a vertically stacked manner; the area of the outer profile of the cross section of the inner wall of the lower layer (15) is gradually reduced downwards along the vertical direction.

5. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The conveying mechanism (41) includes a tube body (411), a central shaft (412), a spiral blade (413), and a rotary drive mechanism (414); the tube body (411) extends horizontally, and a conveying channel (4111) is formed inside the tube body (4111); the discharge pipe (13) is connected to the tube body (411), and the discharge pipe (13) connects the pickling space (11) and the conveying channel (4111); the storage tank (43) is installed at the extended end of the tube body (411), and the... The conveying channel (4111) connects to the internal space of the storage box (43); the central shaft (412) is rotatably installed inside the tube (411), and the central shaft (412) extends along the extension direction of the tube (411) until it abuts against the side wall of the storage box (43); the spiral blade (413) extends spirally around the axis of the central shaft (412) along the extension direction of the central shaft (412); the driving end of the rotary drive mechanism (414) drives and connects to the central shaft (412).

6. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 5, characterized in that, A liquid collection hole is provided on the lower side wall of the tube body (411), the liquid collection hole is connected to the liquid collection tank (42) and the conveying channel (4111), the first filter screen (421) is installed in the liquid collection hole, and the first filter screen (421) extends along the circumference of the tube body (411) and covers the liquid collection hole.

7. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, An annular baffle (121) is installed at the opening of the feed channel (12); the annular baffle (121) extends radially outward and downward along the pickling tower (1); the height of the top surface of the extended end of the annular baffle (121) is lower than the height of the lower edge of the opening.

8. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The energy-saving and environmentally friendly quartz acid washing and purification device further includes an acid circulation component (5); the acid circulation component (5) includes a circulation pipe (51) and an acid pump (52); the circulation pipe (51) connects the collection tank (42) and the delivery ring (21); the acid pump (52) is used to transport the acid in the collection tank (42) to the delivery ring (21) through the circulation pipe (51).

9. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The liquid collection tank (42) is provided with a second filter screen (422); the second filter screen (422) is located below the first filter screen (421), and the second filter screen (422) extends horizontally to cover and divide the liquid collection tank (42) into an upper chamber (423) and a lower chamber (424).

10. The energy-saving and environment-friendly quartz pickling and purifying device according to claim 1, characterized in that, The energy-saving and environmentally friendly quartz acid washing and purification device also includes an induced draft fan (6), which is installed at the top of the acid washing tower (1). The air inlet of the induced draft fan (6) is connected to the acid washing space (11). The induced draft fan (6) is used to form a slight negative pressure in the acid washing space (11). The induced draft fan (6) has a built-in acid mist condensation structure, which is used to condense and return the acid mist to the acid washing space (11).

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