A method for recovering a quartz sand pickling solution for photovoltaic glass

Abstract

The application discloses a kind of quartz sand acid washing liquid recovery method for photovoltaic glass, it is related to quartz sand acid washing liquid recovery technical field, comprising: high-temperature calcination tank, for the high-temperature calcination of recycled quartz sand acid washing liquid;Separation component is located in the side of high-temperature calcination tank;Dial component is located in the inside of separation component and is movably connected with separation component;Movable component is located in the outside of dial component and is movably connected with separation component and dial component.The application, the output end of electric telescopic rod is extended or shortened, simultaneously makes dial rod carry its outside multiple dial components and moves up or down, simultaneously generates dialing force to movable ring, and under the interaction of forward external thread and reverse external thread, the movable ring under stress can only rotate along the dialing piece that moves up and down, and the rotation direction between the two adjacent movable rings is different, and the opposite is good, the magnet net located in the adjacent end surface of movable ring and support ring can be adsorbed to the iron that passes through the entanglement in liquid.

Description

TECHNICAL FIELD

[0001] The application relates to a quartz sand acid washing liquid recovery technology field, in particular to a quartz sand acid washing liquid recovery method for photovoltaic glass. BACKGROUND

[0002] Quartz sand refers to a natural mineral containing a large amount of silicon dioxide, and the main sources are two kinds: one is sand in a desert area, and the other is deep-sea seabed deposits, such as the South Pacific and the like. Generally, the deep-sea quartz sand is more pure and is suitable for manufacturing high-quality photovoltaic silicon wafers. Before use, the quartz sand needs to be purified, and the acid washing method is adopted during the purification. The acid washing refers to the fact that the quartz sand is placed into a reactor containing an acid solution, and the acid component in the solution reacts with the quartz sand containing impurities within a certain time, so that the harmful impurities are decomposed and dissolved, thereby achieving the purpose of purification. Generally, an electric stirrer is adopted in the acid washing process to ensure that the quartz sand is fully contacted with the acid solution.

[0003] In order to realize the cyclic acid washing, a quartz sand acid washing liquid recovery method (for details, refer to patent number: 202210996618.2) is provided, which relates to the technical field of non-metallic mineral deep processing and environmental protection. The method is to first perform high-temperature roasting on the quartz sand, then perform stirring acid washing by using strong acid after the roasting is completed, and finally obtain the quartz sand for photovoltaic glass. After the acid washing liquid is separated from the quartz sand, high-potassium permanganate is added to the separated acid washing liquid to perform oxidation reaction. After the reaction is completed, the precipitate is removed, and the acid after the recovery is obtained. The acid washing and iron removal adopt the low-concentration strong acid combined with the oxidation roasting process, which can meet the requirements of the quartz sand for photovoltaic glass on the iron content, overcome the problems of poor iron removal effect of the traditional oxalic acid and strong corrosion of the high-concentration strong acid, and have the advantages of low requirement on the equipment, higher production safety, and the like. The acid washing liquid recovery adopts the method of high-temperature roasting and high-potassium permanganate precipitation, which can effectively remove the iron in the acid liquid. The recovered acid washing liquid is continuously used for the acid washing of the quartz sand, and the cyclic utilization is realized.

[0004] However, the existing quartz sand acid washing liquid contains fine residues in the process of recycling. When used next time, the residues will be carried into the quartz sand along with the acid washing liquid and mixed with the quartz sand, thereby reducing the quality of the quartz sand to a certain extent and reducing the utilization rate. SUMMARY

[0005] The application aims to solve the problem that the existing quartz sand acid washing liquid contains fine residues in the process of recycling. When used next time, the residues will be carried into the quartz sand along with the acid washing liquid and mixed with the quartz sand, thereby reducing the quality of the quartz sand to a certain extent and reducing the utilization rate. The application provides a quartz sand acid washing liquid recovery method for photovoltaic glass.

[0006] To achieve the above object, the present application provides the following technical scheme: a quartz sand pickling solution recycling device for photovoltaic glass, comprising:

[0007] A high-temperature roasting tank is arranged for high-temperature roasting of the recycled quartz sand pickling solution.

[0008] A separation assembly is arranged on one side of the high-temperature roasting tank.

[0009] A poking assembly is arranged inside the separation assembly and is movably connected with the separation assembly.

[0010] A movable assembly is arranged outside the poking assembly and is movably connected with the separation assembly and the poking assembly.

[0011] The high-temperature roasting tank comprises an outer shell, an inner shell arranged inside the outer shell, a high-temperature insertion hole extending to one end inside the outer shell arranged at the bottom of one end of the outer shell, and a plurality of fixed connections fixedly connected with the inner wall of the outer shell arranged at the top of both ends of the inner shell. The separation assembly comprises a separation tank, a suction pump arranged on one side of the separation tank, and a plurality of annular grooves arranged on the inner wall of the separation tank. The poking assembly comprises an electric telescopic rod, a connecting rod arranged at the output end of the electric telescopic rod, a poking rod arranged at the bottom of one side of the connecting rod away from the electric telescopic rod, a plurality of poking pieces arranged at the bottom end of the outside of the poking rod, a limiting ring arranged at the top end and the bottom end of the outside of the poking piece, seven groups of the poking pieces, among which a plurality of reverse external threads are arranged on the outside of three groups of the poking pieces, and a plurality of forward external threads are arranged on the outside of the remaining four groups of the poking pieces. The movable assembly comprises seven groups of movable rings, and each of the movable rings comprises a magnet net arranged on the outside of the movable ring, a supporting ring arranged on the outside of the magnet net, a limiting convex ring arranged on the outside of the supporting ring, and an internal thread arranged on the inside of the movable ring.

[0012] As a further scheme of the present application, the number of the internal threads is seven groups, among which three groups of the internal threads are reverse threads, and the remaining four groups of the internal threads are forward threads. Each of the movable rings is movably connected with the poking piece through the cooperation of the reverse thread, the reverse external thread, the forward thread, and the forward external thread.

[0013] As a further scheme of the present application, each of the movable rings is movably connected with the separation tank through the cooperation of the limiting convex ring and the annular groove.

[0014] As a further scheme of the present application, the bottom of the electric telescopic rod is fixedly connected with the top of one side of the separation tank through a mounting block.

[0015] As a further scheme of the present application, the input end of the suction pump extends to the bottom end of one side inside the inner shell, and the output end of the suction pump extends to the top end of one side inside the separation tank.

[0016] As a further scheme of the present application: the separation tank top is provided with a through hole, and the stirring rod is movably connected with the separation tank through the through hole.

[0017] As a further scheme of the present application: the recovery method of the quartz sand pickling solution for photovoltaic glass comprises the following steps:

[0018] Step one, the quartz sand pickling solution to be recovered is introduced into the inner shell of the high-temperature roasting tank, and the inner shell is heated through the high-temperature penetrating hole, so that the heat generated is surrounded between the outer shell and the inner shell, thereby making the heating of the liquid in the inner shell more uniform;

[0019] Step two, when heated to a certain extent, potassium permanganate is introduced into the inner shell to cool it down and make the slag in the quartz sand pickling solution to be recovered precipitate, and then the remaining liquid after precipitation is pumped into the top end of the separation tank through the pump and sprayed into the inside of the separation tank through the output end of the pump;

[0020] Step three, the output end of the electric telescopic rod is extended or shortened under the action of electricity, and the connecting rod and the stirring rod are moved up or down along the through hole, and the stirring rod carries the plurality of stirring pieces outside to move up or down, and a stirring force is generated on the movable ring, and the limiting convex ring outside the supporting ring is limited and supported by the annular groove, and under the interaction of the forward external thread and the reverse external thread, the movable ring under stress can only rotate along the up-and-down moving stirring piece, and the rotation directions of the adjacent two groups of movable rings are different and opposite, and the magnet net arranged on the adjacent end faces of the movable ring and the supporting ring can adsorb the iron substances entangled in the liquid, so that the adsorption range is wider by using the stirring adsorption method, thereby the purity of the liquid obtained subsequently is higher, and the quality of the quartz sand is improved to a certain extent when the liquid is used next time, thereby the utilization rate is improved.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. By arranging the high-temperature roasting tank, the quartz sand pickling solution to be recovered is introduced into the inner shell of the high-temperature roasting tank, and the inner shell is heated through the high-temperature penetrating hole, so that the heat generated is surrounded between the outer shell and the inner shell, thereby making the heating of the liquid in the inner shell more uniform, and when heated to a certain extent, potassium permanganate is introduced into the inner shell to cool it down and make the slag in the quartz sand pickling solution to be recovered precipitate;

[0023] 2. Through the high-temperature roasting tank, separation component, actuating component, and movable component, the liquid remaining after sedimentation by the pump is introduced into the top of the separation tank through the pump and sprayed into the interior of the separation tank through the output end of the pump. At the same time, the output end of the electric telescopic rod extends or shortens under the action of electricity, and moves the connecting rod and actuating rod up or down along the through hole. Simultaneously, the actuating rod moves up or down along with multiple sets of actuating parts on its outside, generating a actuating force on the movable ring. Due to the limiting support of the outer limiting protrusion of the support ring, and the interaction of the forward and reverse external threads, the movable ring under force can only rotate along the up and down moving actuating parts, and the rotation directions between adjacent sets of movable rings are different, exactly opposite. At the same time, the magnetic mesh set on the adjacent end face of the movable ring and the support ring will adsorb the iron trapped in the liquid, thus adopting the actuating adsorption method to make the adsorption range wider, thereby making the subsequent liquid purer. When the liquid is used again, it can improve the quality of quartz sand to a certain extent, thereby improving the utilization rate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the toggle assembly of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the active component of the present invention;

[0027] Figure 4 For the present invention Figure 1 A magnified view of A in the middle.

[0028] In the diagram: 1. High-temperature roasting jar; 101. Outer shell; 102. High-temperature insertion hole; 103. Inner shell; 2. Separation assembly; 201. Separation tank; 202. Pump; 203. Annular groove; 3. Actuating assembly; 301. Electric telescopic rod; 302. Connecting rod; 303. Actuating rod; 304. Actuating element; 305. Limiting ring; 306. Forward external thread; 307. Reverse external thread; 4. Movable assembly; 401. Movable ring; 402. Support ring; 403. Limiting convex ring; 404. Internal thread. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the present application.

[0031] Please refer to Figures 1 to 4 In the embodiments of the present application, a quartz sand pickling solution recovery device for photovoltaic glass comprises:

[0032] The high-temperature roasting tank 1 is used for high-temperature roasting of the recovered quartz sand pickling solution;

[0033] The separation assembly 2 is located on one side of the high-temperature roasting tank 1;

[0034] The poking assembly 3 is located inside the separation assembly 2 and is movably connected with the separation assembly 2;

[0035] The movable assembly 4 is located outside the poking assembly 3 and is movably connected with the separation assembly 2 and the poking assembly 3;

[0036] The high-temperature roasting tank 1 comprises an outer shell 101, the inside of the outer shell 101 is provided with an inner shell 103, the bottom of one end of the outer shell 101 is provided with a high-temperature insertion hole 102 extending to the inside of the one end, the top of both ends of the inner shell 103 is uniformly provided with a plurality of fixed connections fixedly connected with the inner wall of the outer shell 101, the separation assembly 2 comprises a separation tank 201, one side of the separation tank 201 is provided with a pump 202, the inner wall of the separation tank 201 is uniformly provided with a plurality of annular grooves 203, the stirring assembly 3 comprises an electric telescopic rod 301, the output end of the electric telescopic rod 301 is provided with a connecting rod 302, the bottom of the side away from the electric telescopic rod 301 of the connecting rod 302 is provided with a stirring rod 303, the bottom end of the outer side of the stirring rod 303 is uniformly provided with a plurality of stirring pieces 304, the top end and the bottom end of the outer side of the stirring piece 304 are both provided with a limiting ring 305, the number of the stirring pieces 304 is seven groups, wherein the outer side of three groups of the stirring pieces 304 is uniformly provided with a plurality of reverse external threads 307, the outer side of the remaining four groups of the stirring pieces 304 is uniformly provided with a plurality of forward external threads 306, the number of the movable assemblies 4 is seven groups, and the seven groups of the movable assemblies 4 all comprise a movable ring 401, the outer side of the movable ring 401 is provided with a magnet net, the outer side of the magnet net is provided with a supporting ring 402, the outer side of the supporting ring 402 is provided with a limiting convex ring 403, and the inner side of the movable ring 401 is provided with an internal thread 404.

[0037] Please refer to Figure 1 、 2 、3 and 4, the number of the internal threads 404 is seven groups, wherein three groups of the internal threads 404 are reverse threads, and the remaining four groups of the internal threads 404 are forward threads, and the movable ring 401 is movably connected with the stirring piece 304 through the cooperation of the reverse threads, the reverse external threads 307, the forward threads and the forward external threads 306 respectively.

[0038] Please refer to Figure 1 、 2 、3 and 4, the plurality of movable rings 401 are movably connected with the separation tank 201 through the cooperation of the limiting convex ring 403 and the annular groove 203.

[0039] Please refer to Figure 1 and 2 , the bottom of the electric telescopic rod 301 is fixedly connected with the top of one side of the separation tank 201 through a mounting block.

[0040] Please refer to Figure 1 , the input end of the pump 202 extends to the bottom end of one side in the inside of the inner shell 103, and the output end of the pump 202 extends to the top end of one side in the inside of the separation tank 201.

[0041] Please refer to Figure 1 and 4The middle position of the top of the separation tank 201 is provided with a through hole, and the stirring rod 303 is movably connected with the separation tank 201 through the through hole.

[0042] Please refer to Figure 1 、 2 , 3 and 4, the recovery method of the quartz sand acid washing solution for photovoltaic glass comprises the following steps:

[0043] Step one, the quartz sand acid washing solution to be recovered is introduced into the inner shell 103 of the high-temperature roasting tank 1, and the inner shell 103 is heated through the high-temperature penetrating hole 102, so that the heat generated is surrounded between the outer shell 101 and the inner shell 103, thereby making the heating of the liquid in the inner shell 103 more uniform;

[0044] Step two, when heated to a certain extent, potassium permanganate is introduced into the inside of the inner shell 103 to cool it down and make the slag in the quartz sand acid washing solution to be recovered precipitate, and then the remaining liquid after precipitation is introduced into the top end of the inside of the separation tank 201 through the pump 202 and sprayed into the inside of the separation tank 201 through the output end of the pump 202;

[0045] Step three, the output end of the electric telescopic rod 301 is extended or shortened under the action of electricity, and at the same time, the connecting rod 302 and the stirring rod 303 are moved up or down along the through hole, and at the same time, the stirring rod 303 carries the multiple groups of stirring pieces 304 outside it to move up or down, and at the same time, a stirring force is generated on the movable ring 401. Because the limiting convex ring 403 outside the supporting ring 402 is limited and supported by the annular groove 203, and under the interaction of the forward external thread 306 and the reverse external thread 307, the stressed movable ring 401 can only rotate along the up-and-down moving stirring pieces 304, and the rotation directions of the adjacent two groups of movable rings 401 are different, and the rotation directions of the adjacent two groups of movable rings 401 are opposite, and the magnet net arranged on the adjacent end faces of the movable ring 401 and the supporting ring 402 can adsorb the iron substances entangled in the liquid, thereby using the stirring adsorption method to make the adsorption range more extensive, so that the purity of the liquid obtained subsequently is higher, and when the liquid is used next time, the quality of the quartz sand can be improved to a certain extent, thereby improving the utilization rate.

[0046] The working principle of the present application is: when in use, the quartz sand acid washing liquid to be recovered is introduced into the inner shell 103 of the high-temperature roasting tank 1, and the inner shell 103 is heated through the high-temperature penetrating hole 102, so that the heat generated is surrounded between the outer shell 101 and the inner shell 103, thereby making the heating of the liquid in the inner shell 103 more uniform; when heated to a certain extent, potassium permanganate is introduced into the inside of the inner shell 103 to cool it down and make the slag in the quartz sand acid washing liquid to be recovered precipitate, then the remaining liquid after precipitation is introduced into the top end of the separation tank 201 through the pump 202, and is sprayed into the inside of the separation tank 201 through the output end of the pump 202, while the output end of the electric telescopic rod 301 is extended or shortened under the action of electricity, and the connecting rod 302 and the poking rod 303 are moved up or down along the through hole, and the poking rod 303 carries the multiple sets of poking pieces 304 outside it to move up or down, and the poking force is generated to the movable ring 401, because the limiting convex ring 403 outside the supporting ring 402 is limited and supported by the annular groove 203, and under the interaction of the forward external thread 306 and the reverse external thread 307, the movable ring 401 under stress can only rotate along the up-and-down poking pieces 304, and the rotation directions of the adjacent two sets of movable rings 401 are different, and the rotation directions are opposite, and the magnet net arranged on the adjacent end faces of the movable ring 401 and the supporting ring 402 can adsorb the iron substances entangled in the liquid, so that the adsorption range is wider by using the poking adsorption method, thereby the purity of the liquid obtained subsequently is higher, and when the liquid is used next time, the quality of the quartz sand can be improved to a certain extent, thereby the utilization rate is improved.

[0047] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A recovery device for a quartz sand pickling solution for photovoltaic glass, characterized by, Include: High temperature roasting tank (1) for high temperature roasting of recovered quartz sand acid washing solution; Separation assembly (2) is located on one side of high temperature roasting tank (1); Dial component (3) is located inside the separation assembly (2) and is movably connected with the separation assembly (2); Movable assembly (4) is located outside the dial component (3) and is movably connected with the separation assembly (2) and the dial component (3); The high temperature roasting tank (1) comprises an outer shell (101), an inner shell (103) is arranged in the inner shell (101), a high temperature insertion hole (102) extending to one end of the inner shell (103) is arranged at the bottom of one end of the outer shell (101), a plurality of fixed connections are uniformly arranged on the top of both ends of the inner shell (103) and are fixedly connected with the inner wall of the outer shell (101), the separation assembly (2) comprises a separation tank (201), a pump (202) is installed on one side of the separation tank (201), a plurality of annular grooves (203) are uniformly arranged on the inner wall of the separation tank (201), the dial component (3) comprises an electric telescopic rod (301), the output end of the electric telescopic rod (301) is provided with a connecting rod (302), the bottom of the connecting rod (302) is provided with a dial rod (303) away from the electric telescopic rod (301), a plurality of dial parts (304) are uniformly arranged on the bottom end of the outer side of the dial rod (303), the top end and the bottom end of the outer side of the dial part (304) are provided with a limiting ring (305), the number of the dial part (304) is seven groups, wherein the outer side of three groups of the dial part (304) is uniformly provided with a plurality of reverse external threads (307), the outer side of the remaining four groups of the dial part (304) is uniformly provided with a plurality of forward external threads (306), the number of the movable assembly (4) is seven groups, and the seven groups of the movable assembly (4) all comprise a movable ring (401), the outer side of the movable ring (401) is provided with a magnet net, the outer side of the magnet net is provided with a supporting ring (402), the outer side of the supporting ring (402) is provided with a limiting convex ring (403), and the inner side of the movable ring (401) is provided with an internal thread (404).

2. The quartz sand pickling solution recovery device for photovoltaic glass according to claim 1, characterized in that, The number of the internal thread (404) is seven groups, wherein three groups of the internal thread (404) are reverse threads, and the remaining four groups of the internal thread (404) are forward threads, and the movable ring (401) is movably connected with the dial part (304) through the cooperation of the reverse thread, the reverse external thread (307), the forward thread and the forward external thread (306).

3. The quartz sand pickling solution recovery device for photovoltaic glass according to claim 1, characterized in that, A plurality of movable rings (401) are movably connected with the separation tank (201) through the cooperation of the limiting convex ring (403) and the annular groove (203).

4. The quartz sand pickling solution recovery device for photovoltaic glass according to claim 1, characterized in that, The bottom of the electric telescopic rod (301) is fixedly connected with the top of one side of the separation tank (201) through the mounting block.

5. The quartz sand pickling solution recovery device for photovoltaic glass according to claim 1, characterized in that, The input end of the pump (202) extends to the bottom end of one side of the inner shell (103), and the output end of the pump (202) extends to the top end of one side of the inner side of the separation tank (201).

6. The quartz sand pickling solution recovery device for photovoltaic glass according to claim 1, characterized in that, The separation tank (201) top middle position is provided with a through hole, the stirring rod (303) is connected with the separation tank (201) through the through hole.

7. A method for recovering a quartz sand pickling solution for photovoltaic glass, characterized by, The quartz sand pickling solution recovery method for the photovoltaic glass comprises the following steps: Step one, the quartz sand pickling solution to be recycled is introduced into the inner shell (103) of the high-temperature roasting tank (1), and the inner shell (103) is heated through the high-temperature penetrating hole (102), so that the heat generated is surrounded between the outer shell (101) and the inner shell (103), thereby making the heating of the liquid in the inner shell (103) more uniform; Step two, when heated to a certain extent, potassium permanganate is introduced into the inner shell (103) to cool it down and make the slag in the quartz sand pickling solution to be recycled precipitate, then the remaining liquid after precipitation is introduced into the top end of the separation tank (201) through the pump (202) and sprayed into the separation tank (201) through the output end of the pump (202); Step three, the output end of the electric telescopic rod (301) is extended or shortened under the action of electricity, and simultaneously carries the connecting rod (302) and the stirring rod (303) to move up or down along the through hole, and simultaneously makes the stirring rod (303) carry the multiple stirring pieces (304) outside it to move up or down, and simultaneously generates a stirring force on the movable ring (401), because the limiting convex ring (403) outside the supporting ring (402) is limited and supported by the annular groove (203), and under the interaction of the forward external thread (306) and the reverse external thread (307), the movable ring (401) under stress can only rotate along the up-and-down moving stirring piece (304), and the rotation directions of the adjacent two groups of movable rings (401) are different, and the magnet nets arranged on the adjacent end faces of the movable ring (401) and the supporting ring (402) can adsorb the iron substances entangled in the liquid, thereby adopting the stirring adsorption method to make the adsorption range more extensive, thereby making the subsequent obtained liquid have higher purity, and when the liquid is used next time, the quality of the quartz sand can be improved to a certain extent, thereby improving the utilization rate.

Images