A kind of quartz sand processing pickling waste liquid recycling equipment

Abstract

A quartz sand processing pickling waste liquid recycling device belongs to the field of water treatment technology and is designed to solve the problem of low stability of existing ion exchange columns when absorbing metal ions in waste liquid. The invention solves the problem of low stability when absorbing metal ions by switching the liquid inlet and rotation functions of different connecting pipes. When the upper layer of resin is saturated, the liquid inlet height can be switched to improve the absorption effect. The linkage mechanism cleverly uses the movement of the movable rod to store power to achieve intermittent rotation of the ion exchange column without the need for an additional power source, thus saving energy and ensuring the continuity of operation. The provision of a regeneration liquid inlet pipe and a regeneration liquid outlet pipe facilitates the regeneration of the ion exchange column, improves the effect of filtering metal ions, and improves the sustainable use of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a recycling device for pickling waste liquid in quartz sand processing. Background Art

[0002] The purpose of quartz sand pickling is to remove impurities in quartz sand to improve the purity and quality of quartz sand. The impurities in quartz sand mainly include metal oxides such as iron and aluminum and some clay minerals. Quartz sand pickling is generally carried out by pickling with 5%-20% concentration of hydrochloric acid. In addition to the residual impurities, the hydrochloric acid after pickling also includes metal ions, acid radical ions and residual acid.

[0003] Since the waste liquid after quartz sand pickling includes residual acid and acid radical ions, it has the value of recycling. The current common treatment method is to precipitate and filter the waste liquid, and then use ion exchange columns to absorb the metal ions in the waste liquid. Finally, the waste liquid flowing out can continue to be used after adding raw materials to adjust the pH value; however, the current ion exchange columns are greatly affected by their height during use. The exchange resin on the upper layer is easily saturated with ions, thereby reducing the overall treatment efficiency. At the same time, after the upper resin is saturated, it may begin to release some of the ions previously adsorbed, resulting in fluctuations in the ion concentration in the treated waste liquid, affecting the overall stability. Summary of the invention

[0004] The purpose of the present invention is to provide a quartz sand processing pickling waste liquid recycling device, which solves the problem of low stability of the existing ion exchange column in the background technology when absorbing metal ions in the waste liquid.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a recycling device for pickling waste liquid in quartz sand processing, comprising a purification tank, wherein a storage tank, a liquid storage chamber, a liquid discharge chamber and a movable chamber are sequentially arranged inside the purification tank from top to bottom, the storage tank, the liquid storage chamber, the liquid discharge chamber and the movable chamber are interconnected, and the top of the storage tank is open, and a filtering structure is arranged below the movable chamber; an intermittent liquid inlet mechanism is arranged inside the purification tank, and the intermittent liquid inlet mechanism comprises a hydraulic machine fixedly arranged below the inside of the purification tank, and a movable rod is fixedly connected to the output end of the hydraulic machine, and the movable rod extends upward and is fixedly connected to a first sealing plate and a second sealing plate, and the first sealing plate and the second sealing plate are slidably connected inside the storage tank, the liquid storage chamber and the liquid discharge chamber, and the first sealing plate and the second sealing plate are in contact with the inner wall of the liquid storage chamber, and the liquid storage chamber is smaller than the diameter of the storage tank and the liquid discharge chamber;

[0006] A storage tray is rotatably provided at one side of the lower interior of the purification tank, an ion exchange column is radially installed inside the storage tray, and the ion exchange column is rotatably connected to the storage tray, the storage tray is located obliquely below the filtering structure, and the ion exchange column near the intermittent liquid inlet mechanism inside the storage tray is docked with the filtering structure, a plurality of groups of connecting pipes are radially distributed on the outer side of the ion exchange column, and the connecting pipes are connected to the interior of the ion exchange column, the heights of the plurality of connecting pipes gradually increase, and the tops of the connecting pipes are at the same horizontal height, the top of the ion exchange column is also fixedly connected to a fixed tray, a flow channel connected to the connecting pipe is provided inside the fixed tray, a docking tube is rotatably provided on the upper interior of the fixed tray, the docking tube is used to dock with the filtering structure, a docking port connected to the flow channel is provided on the side of the docking tube, a drain port is provided at the bottom of the ion exchange column, a large gear is rotatably connected to the lower interior of the storage tray, the large gear is engaged with the outside of the ion exchange column, a linkage mechanism is provided between the large gear and the movable rod inside the purification tank, the linkage mechanism is used to intermittently drive the ion exchange column to rotate after storing force through multiple extensions and retractions of the movable rod.

[0007] Furthermore, a regeneration liquid inlet pipe is provided in the middle of the side of the purification tank, and the regeneration liquid inlet pipe is connected to the top of the ion exchange column on the side of the storage tray away from the intermittent liquid inlet mechanism. A drain pipe and a regeneration liquid outlet pipe are provided at the lower side of the purification tank, and the regeneration liquid outlet pipe is connected to the bottom of the ion exchange column on the side of the storage tray away from the intermittent liquid inlet mechanism. The drain pipe is connected to the bottom of the ion exchange column on the side of the storage tray close to the intermittent liquid inlet mechanism. The regeneration liquid inlet pipe is used to input a regeneration agent to contact the internal resin to exchange the metal ions inside. The top of the storage tray extends to the outside of the purification tank through an axis and is fixedly connected to a turntable.

[0008] Furthermore, the linkage mechanism includes a fixed plate fixedly connected to the outer wall of the movable rod, and a toothed plate movably installed on the other side of the fixed plate, the toothed plate is elastically slidably connected to the side of the fixed plate by a spring, the linkage mechanism also includes a rotating roller rotatably connected to the inside of the purification tank, the outer rear of the rotating roller is evenly distributed with a first ratchet, the outer front of the rotating roller is provided with a first protrusion, a shaft is installed in front of the rotating roller, and a torsion spring is fixedly installed between the shaft and the inside of the purification tank, the linkage mechanism also includes a limit plate slidably connected to the inside of the purification tank, the inside of the purification tank is provided with a slide groove corresponding to the limit plate, the limit plate is located above the rotating roller, a card block is provided at the rear of the bottom of the limit plate, a second protrusion is provided at the front of the bottom of the limit plate, the card block corresponds to the first ratchet, the second protrusion corresponds to the first protrusion, a damping spring is installed between the top of the limit plate and the slide groove, and the cross-sections of the end of the toothed plate, the first ratchet and the card block are all right triangles.

[0009] Furthermore, the linkage mechanism also includes a transmission gear group arranged behind the rotating roller, the transmission gear group includes two groups of mutually meshing helical gears, one group of helical gears is fixedly connected to the rotating roller, and the linkage mechanism also includes a ratchet gear group and a pinion gear arranged below the transmission gear group, the pinion gear is meshed with the large gear, and the gear ratio between the large gear and the pinion gear is:; the ratchet gear group includes an inner cylinder, multiple groups of radially distributed second ratchet teeth and an outer sleeve from the inside to the outside, the inner cylinder is fixedly connected to another group of helical gears through a shaft, and the outer sleeve is fixedly connected to the pinion gear through a shaft.

[0010] Furthermore, the filtration structure includes a filter screen rotatably arranged in the middle of the active cavity, an activated carbon adsorption layer and a filter membrane fixedly arranged at the bottom of the active cavity, and a first liquid accumulation bucket and a second liquid accumulation bucket are respectively provided at the bottom of the filter screen and the filter membrane, and the second liquid accumulation bucket is used to dock with the top of the ion exchange column. The filter screen, activated carbon adsorption layer and filter membrane are all annular, and the movable rod passes through the filter screen, activated carbon adsorption layer and filter membrane upward.

[0011] Furthermore, a driving mechanism is arranged outside the purification tank, and the driving mechanism comprises a motor fixedly mounted on the outer wall of the purification tank, an active roller is fixedly connected to the output end of the motor, and a belt is sleeved between the active roller and the filter screen.

[0012] Furthermore, a cleaning mechanism is provided on the outside of the movable rod above the filter screen, and the cleaning mechanism includes an arc-shaped plate rotatably connected to the outside of the movable rod, the arc-shaped plate is composed of four groups of spiral plates and a rotating ring fixedly connected to the middle of the spiral plate, a cover plate is installed on the periphery of the arc-shaped plate, the cover plate is a truncated cone-shaped shell with a small upper part and a large lower part, a sealing gasket is provided at the bottom of the cover plate, a sliding groove is provided at the lower part of the interior of the arc-shaped plate, a scraper is slidably connected below the sliding groove, the bottom of the scraper is V-shaped, and a compression spring is installed between the top of the scraper and the inner wall of the sliding groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention provides a quartz sand processing pickling waste liquid recycling equipment. The unique design of the ion exchange column solves the problem of low stability during metal ion absorption by switching the liquid inlet and rotation functions of different connecting tubes. When the upper layer of resin is saturated, the liquid inlet height can be switched to improve the absorption effect. The linkage mechanism cleverly uses the movement of the movable rod to store power to achieve intermittent rotation of the ion exchange column without the need for an additional power source, saving energy while ensuring the continuity of operation. The provision of the regeneration liquid inlet pipe and the regeneration liquid outlet pipe facilitates the regeneration of the ion exchange column and improves the sustainable use of the equipment.

[0015] 2. The present invention provides a quartz sand processing pickling waste liquid recycling equipment, in which the intermittent liquid feeding mechanism realizes the intermittent and stable feeding of the waste liquid through the cooperation of the hydraulic valve and the sealing plate, effectively controls the flow rate and rhythm of the waste liquid entering the purification tank, and is conducive to the orderly progress of subsequent treatment processes. The combination of the filter mesh, the activated carbon adsorption layer and the filter membrane in the filtering structure can efficiently remove various impurities in the waste liquid, and the cleaning mechanism can automatically clean the filter mesh to ensure the continuity and stability of the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a front view of the overall structure of the present invention;

[0018] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the purification tank of the present invention;

[0020] Figure 5 It is a schematic diagram of the intermittent liquid inlet mechanism, storage tray, ion exchange column and linkage mechanism structure of the present invention;

[0021] Figure 6 It is a disassembled diagram of the storage tray and ion exchange column structure of the present invention;

[0022] Figure 7 This is a structural breakdown diagram of the ion exchange column of the present invention;

[0023] Figure 8 It is a schematic diagram of the intermittent liquid inlet mechanism, ion exchange column and linkage mechanism of the present invention;

[0024] Fig. 9 It is a schematic diagram of the linkage mechanism structure of the present invention;

[0025] Fig.10 It is an exploded diagram of the linkage mechanism structure of the present invention;

[0026] Fig.11 It is a schematic diagram of the structure of the rotating roller and the limiting plate of the present invention;

[0027] Fig.12 It is a partial structural cross-sectional view of the purification tank, the filtering structure and the driving mechanism of the present invention;

[0028] Fig.13 This is a structural breakdown diagram of the filter screen, drive mechanism and cleaning mechanism of the present invention.

[0029] In the figure: 1. purification tank; 11. storage tank; 12. liquid storage chamber; 13. drainage chamber; 14. movable chamber; 141. opening; 15. storage tray; 151. large gear; 16. turntable; 17. drainage pipe; 18. regeneration liquid inlet pipe; 19. regeneration liquid outlet pipe; 2. intermittent liquid inlet mechanism; 21. hydraulic pressure; 22. movable rod; 23. first sealing plate; 24. second sealing plate; 3. filtering structure; 31. filter screen; 311. first liquid accumulation bucket; 32. activated carbon adsorption layer; 33. filter membrane; 331. second liquid accumulation bucket; 4. driving mechanism; 41. motor; 42. active roller; 43. belt; 5. cleaning mechanism; 51 , arc plate; 511, sliding groove; 52, cover plate; 53, scraper; 531, compression spring; 6, ion exchange column; 61, connecting pipe; 62, fixed plate; 621, flow channel; 63, docking pipe; 631, docking port; 64, drain port; 7, linkage mechanism; 71, fixed plate; 72, tooth plate; 73, rotating roller; 731, first ratchet; 732, first protrusion; 733, torsion spring; 74, limit plate; 741, block; 742, second protrusion; 743, damping spring; 75, transmission gear set; 76, pinion; 77, ratchet gear set; 771, outer sleeve; 772, inner sleeve; 773, second ratchet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to solve the technical problem that the existing ion exchange column has low stability when absorbing metal ions in waste liquid, such as Figure 1-Figure 13 As shown, the following preferred technical solutions are provided:

[0032] like Figure 1-Figure 4As shown, a recycling device for pickling waste liquid in quartz sand processing includes a purification tank 1, wherein a storage tank 11, a liquid storage chamber 12, a liquid discharge chamber 13 and a movable chamber 14 are sequentially arranged inside the purification tank 1 from top to bottom, the storage tank 11, the liquid storage chamber 12, the liquid discharge chamber 13 and the movable chamber 14 are interconnected, and the top of the storage tank 11 is open, and a filtering structure 3 is arranged below the inside of the movable chamber 14. An intermittent liquid inlet mechanism 2 is arranged inside the purification tank 1, and the intermittent liquid inlet mechanism 2 includes a hydraulic press 21 fixedly arranged below the inside of the purification tank 1, and a movable rod 22 is fixedly connected to the output end of the hydraulic press 21, and the movable rod 22 extends upward and is fixedly connected to a first sealing plate 23 and a second sealing plate 24, and the first sealing plate 23 and the second sealing plate 24 are slidably connected to the storage tank 11, the liquid storage chamber 12, the liquid discharge chamber 13 and the movable chamber 14. 12 and the inside of the liquid discharge chamber 13, and the first sealing plate 23 and the second sealing plate 24 are in contact with the inner wall of the liquid storage chamber 12, the liquid storage chamber 12 is smaller than the diameter of the storage tank 11 and the liquid discharge chamber 13, the storage tank 11 is used for waste liquid to enter, and the waste liquid entering the storage tank 11 is blocked by the second sealing plate 24 and stays in the upper layer, when the hydraulic press 21 drives the movable rod 22 to extend, the second sealing plate 24 moves into the storage tank 11, and the waste liquid enters the liquid storage chamber 12 through the gap between the second sealing plate 24 and the storage tank 11, and the first sealing plate 23 blocks the waste liquid from flowing downward, when the hydraulic press 21 drives the movable rod 22 to retract, the first sealing plate 23 enters the liquid discharge chamber 13, and the waste liquid falls into the filter structure 3 at the gap between the inner wall of the liquid discharge chamber 13 and the first sealing plate 23 for filtration;

[0033] A storage tray 15 is rotatably provided at one side of the lower interior of the purification tank 1, and an ion exchange column 6 is radially installed inside the storage tray 15, and the ion exchange column 6 is rotatably connected to the storage tray 15, the storage tray 15 is located obliquely below the filter structure 3, and the ion exchange column 6 on the side of the intermittent liquid inlet mechanism 2 inside the storage tray 15 is docked with the filter structure 3, and the storage tray 15 can be rotated to switch the ion exchange column 6 to dock with the filter structure 3, such as Figure 7As shown, multiple groups of connecting tubes 61 are radially distributed on the outer side of the ion exchange column 6, and the connecting tubes 61 are connected to the inside of the ion exchange column 6. The heights of the multiple groups of connecting tubes 61 gradually increase, and the tops of the connecting tubes 61 are at the same horizontal height. The top of the ion exchange column 6 is also fixedly connected to a fixed disk 62, and the inside of the fixed disk 62 is provided with a flow channel 621 connected to the connecting tube 61. A docking tube 63 is rotatably arranged on the upper part of the fixed disk 62. The docking tube 63 is used to dock with the filtering structure 3, and the side of the docking tube 63 is provided with a docking connection connected to the flow channel 621. Port 631, a drain port 64 is provided at the bottom of the ion exchange column 6, and different connecting tubes 61 can be switched to communicate with the filtering structure 3 by rotating the ion exchange column 6, so that the waste liquid can enter the interior of the ion exchange column 6 from different heights, and a large gear 151 is rotatably connected to the lower part of the storage tray 15, and the large gear 151 is engaged with the outside of the ion exchange column 6. A linkage mechanism 7 is provided inside the purification tank 1 between the large gear 151 and the movable rod 22, and the linkage mechanism 7 is used to intermittently drive the ion exchange column 6 to rotate after accumulating force through multiple extensions and retractions of the movable rod 22.

[0034] like Figure 4 As shown, a regeneration liquid inlet pipe 18 is provided in the middle of the side of the purification tank 1, and the regeneration liquid inlet pipe 18 is connected to the upper part of the ion exchange column 6 in the storage tray 15 away from the intermittent liquid inlet mechanism 2. A discharge pipe 17 and a regeneration liquid outlet pipe 19 are provided at the lower part of the side of the purification tank 1. The regeneration liquid outlet pipe 19 is connected to the lower part of the ion exchange column 6 in the storage tray 15 away from the intermittent liquid inlet mechanism 2, and the discharge pipe 17 is connected to the lower part of the ion exchange column 6 in the storage tray 15 close to the intermittent liquid inlet mechanism 2. The regeneration liquid inlet pipe 18 is used to input a regeneration agent to contact with the internal resin to exchange the metal ions inside. The top of the storage tray 15 extends to the outside of the purification tank 1 through an axis and is fixedly connected to a turntable 16.

[0035] like Figure 9-11 As shown, the linkage mechanism 7 includes a fixed plate 71 fixedly connected to the outer wall of the movable rod 22, and a tooth plate 72 movably installed on the other side of the fixed plate 71, the tooth plate 72 is elastically slidably connected to the side of the fixed plate 71 through a spring, and the linkage mechanism 7 also includes a rotating roller 73 rotatably connected to the inside of the purification tank 1, the outer rear of the rotating roller 73 is evenly distributed with first ratchet teeth 731, the outer front of the rotating roller 73 is provided with a first protrusion 732, the front of the rotating roller 73 is installed with a shaft, and a torsion spring 733 is fixedly installed between the shaft and the inside of the purification tank 1.

[0036] The linkage mechanism 7 also includes a limit plate 74 slidably connected to the inside of the purification tank 1. A slide groove corresponding to the limit plate 74 is provided inside the purification tank 1. The limit plate 74 is located above the rotating roller 73. A clamping block 741 is provided at the rear of the bottom of the limit plate 74. A second protrusion 742 is provided at the front of the bottom of the limit plate 74. The clamping block 741 corresponds to the first ratchet 731, and the second protrusion 742 corresponds to the first protrusion 732. A damping spring 743 is installed between the top of the limit plate 74 and the slide groove. The damping spring 743 can slow down the speed at which the limit plate 74 returns downward.

[0037] The cross-sections of the end of the tooth plate 72, the first ratchet tooth 731 and the block 741 are all right triangles. The hydraulic cylinder 21 drives the movable rod 22 to move up and down intermittently to control the waste liquid to enter the purification tank 1. When the movable rod 22 moves downward, the tooth plate 72 drives the first ratchet tooth 731 to rotate clockwise, and the torsion spring 733 enters the power storage state. Under the action of the block 741, the first ratchet tooth 731 cannot be reset at this time. During the rising process of the movable rod 22, the tooth plate 72 and the fixed plate 71 are in an elastic sliding connection state, and cannot drive the first ratchet tooth 731 to rotate clockwise. A ratchet 731 rotates counterclockwise, and after the movable rod 22 has reciprocated and risen several times, when the rotating roller 73 rotates nearly one circle, the first protrusion 732 rotates to contact the second protrusion 742, prompting the limit plate 74 to move upward, and the block 741 releases the lock on the first ratchet 731, and the rotating roller 73 quickly rotates counterclockwise to reset. Under the action of the damping spring 743, the limit plate 74 slowly descends. After the rotating roller 73 is reset, the block 741 under the limit plate 74 limits the first ratchet 731 again.

[0038] The linkage mechanism 7 also includes a transmission gear set 75 arranged behind the rotating roller 73. The transmission gear set 75 includes two groups of mutually meshing bevel gears, one group of which is fixedly connected to the rotating roller 73. The linkage mechanism 7 also includes a ratchet gear set 77 and a small gear 76 arranged below the transmission gear set 75. The small gear 76 is meshed with the large gear 151, and the gear ratio between the large gear 151 and the small gear 76 is 4:1.

[0039] The ratchet gear set 77 includes, from the inside to the outside, an inner cylinder 772, multiple groups of radially distributed second ratchet teeth 773 and an outer sleeve 771. The inner cylinder 772 is fixedly connected to another group of bevel gears through a shaft, and the outer sleeve 771 is fixedly connected to the pinion 76 through a shaft. The inner wall of the outer sleeve 771 is provided with a groove corresponding to the second ratchet tooth 773, and the second ratchet tooth 773 moves inside the outer sleeve 771 through a spring elasticity. The outer wall of the inner cylinder 772 is provided with a groove corresponding to the end of the second ratchet tooth 773, and the cross-sectional shape of the groove and the end of the second ratchet tooth 773 is a right triangle, thereby forming a ratchet structure that can only be driven counterclockwise; when the rotating roller 73 quickly resets and rotates counterclockwise, the pinion 76 is finally driven to rotate counterclockwise for one circle through the gear ratio of the transmission gear set 75 and the ratchet principle of the ratchet gear set 77, and then the ion exchange column 6 is driven to rotate through the large gear 151.

[0040] like Fig.12 As shown, the filter structure 3 includes a filter screen 31 rotatably arranged in the middle of the active chamber 14, an activated carbon adsorption layer 32 and a filter membrane 33 fixedly arranged at the bottom of the active chamber 14, a first liquid accumulation bucket 311 and a second liquid accumulation bucket 331 are respectively provided at the bottom of the filter screen 31 and the filter membrane 33, the second liquid accumulation bucket 331 is used to dock with the top of the ion exchange column 6, the filter screen 31, the activated carbon adsorption layer 32 and the filter membrane 33 are all annular, and the active rod 22 passes through the filter screen 31, the activated carbon adsorption layer 32 and the filter membrane 33 upward, and the middle parts of the filter screen 31, the activated carbon adsorption layer 32 and the filter membrane 33 are raised to prevent waste liquid from passing through the gap between the active rod 22 and the filter screen 31, the activated carbon adsorption layer 32 and the filter membrane 33.

[0041] A driving mechanism 4 is provided outside the purification tank 1, and the driving mechanism 4 includes a motor 41 fixedly installed on the outer wall of the purification tank 1, an active roller 42 is fixedly connected to the output end of the motor 41, and a belt 43 is set between the active roller 42 and the filter screen 31. The active roller 42 is driven by the motor 41 and the filter screen 31 can be driven to rotate through the belt 43.

[0042] A cleaning mechanism 5 is arranged on the outside of the movable rod 22 above the filter 31. The cleaning mechanism 5 includes an arc plate 51 rotatably connected to the outside of the movable rod 22. The arc plate 51 is composed of four groups of spiral plates and a rotating ring fixedly connected to the middle of the spiral plate. A cover plate 52 is installed on the periphery of the arc plate 51. The cover plate 52 is a truncated cone-shaped shell with a small top and a large bottom. A sealing gasket is arranged at the bottom of the cover plate 52. After the movable rod 22 moves downward, the arc plate 51 fits tightly with the top of the filter 31 through the sealing gasket. A sliding groove 511 is arranged at the lower part of the arc plate 51. A scraper 53 is slidably connected below the sliding groove 511. The bottom of the scraper 53 is V-shaped. A compression spring 531 is installed between the top of the scraper 53 and the inner wall of the sliding groove 511. When the cover plate 52 and the filter screen 31 rotate in close contact, the cover plate 52 rotates along with it, and the waste liquid to be filtered generates centrifugal force and generates downward force under the action of the inclined surface of the cover plate 52, so as to smoothly pass through the filter screen 31 for filtration. When the movable rod 22 starts to move upward, the arc plate 51 and the cover plate 52 move upward, and the scraper 53 is still in contact with the filter screen 31 under the action of the compression spring 531. At this time, the cover plate 52 has begun to separate from the filter screen 31, and its rotation speed begins to decrease. A speed difference is generated between the rotation of the scraper 53 and the rotation of the filter screen 31. The scraper 53 can scrape off the impurities remaining on the filter screen 31, as shown in the intermittent liquid inlet mechanism 2 in the figure. An opening 141 is provided on the left side of the middle part of the purification tank 1, and the opening 141 is used for impurity discharge.

[0043] Working principle: After the pickling waste liquid is precipitated, it is transported to the storage tank 11 through the delivery pump, and then the hydraulic press 21 is started. The hydraulic press 21 drives the movable rod 22 to intermittently move up and down through the first sealing plate 23 and the second sealing plate 24. When the hydraulic press 21 is extended, the waste liquid enters the liquid storage chamber 12. After the hydraulic press 21 is retracted, the waste liquid passes through the discharge chamber 13 and falls between the top of the filter screen 31 and the cover plate 52. The filter screen 31 is driven to rotate by the driving mechanism 4 to generate centrifugal force. Under the action of the inclined surface of the filter screen 31, the waste liquid quickly passes through the filter screen 31 for filtration. Then, when the movable rod 22 rises, it drives the cleaning mechanism 5 to move upward, and the scraper 53 scrapes off the impurities on the surface of the filter screen 31. The waste liquid passing through the filter screen 31 is further removed of impurities under the action of the activated carbon adsorption layer 32 and the filter membrane 33, and finally enters the ion exchange column 6 through the second liquid accumulation bucket 331. During the process of the waste liquid passing through the connecting pipe 61 and entering the ion exchange column 6, the resin above the ion exchange column 6 absorbs gold After the metal ions are saturated, they enter the ion exchange column 6 through the connecting tubes 61 of different heights to improve the absorption effect. During the up and down movement of the movable rod 22, the fixed plate 71 and the tooth plate 72 cooperate to intermittently drive the rotating roller 73 to rotate clockwise and accumulate force. The limit plate 74 limits the rotating roller 73. When the rotating roller 73 rotates nearly one circle, the first protrusion 732 on the rotating roller 73 contacts the second protrusion 742 under the limit plate 74, so that the limit plate 74 moves upward, and the rotating roller 73 quickly rotates and resets. Under the gear ratio of the transmission gear set 75 and the unidirectional transmission of the ratchet gear set 77, the pinion 76 is driven to rotate one circle to complete the rotation of the ion exchange column 6, and different connecting tubes 61 are switched to absorb the metal ions. After the ion exchange column 6 is completely saturated with absorption, the storage disk 15 can be driven to rotate by the external rotating turntable 16 to switch different ion exchange columns 6 for absorption, and the saturated ion exchange column 6 can be restored by circulating the regeneration agent through the regeneration liquid inlet pipe 18 and the regeneration liquid outlet pipe 19.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for recycling pickling waste liquid from quartz sand processing, comprising a purification tank (1), characterized in that: The interior of the purification tank (1) is provided with a storage tank (11), a liquid storage chamber (12), a liquid discharge chamber (13) and a movable chamber (14) in order from top to bottom. The storage tank (11), the liquid storage chamber (12), the liquid discharge chamber (13) and the movable chamber (14) are interconnected, and the top of the storage tank (11) is open. A filtering structure (3) is provided at the lower part of the movable chamber (14). An intermittent liquid inlet mechanism (2) is provided at the interior of the purification tank (1). The intermittent liquid inlet mechanism (2) comprises a hydraulic device fixedly provided at the lower part of the interior of the purification tank (1). (21), the output end of the hydraulic press (21) is fixedly connected to a movable rod (22), the movable rod (22) extends upward and is fixedly connected to a first sealing plate (23) and a second sealing plate (24), the first sealing plate (23) and the second sealing plate (24) are slidably connected inside the storage tank (11), the liquid storage chamber (12) and the liquid discharge chamber (13), and the first sealing plate (23) and the second sealing plate (24) are in contact with the inner wall of the liquid storage chamber (12), and the liquid storage chamber (12) is smaller than the diameter of the storage tank (11) and the liquid discharge chamber (13); A storage tray (15) is rotatably arranged on one side of the lower interior of the purification tank (1), an ion exchange column (6) is radially installed inside the storage tray (15), and the ion exchange column (6) is rotatably connected to the storage tray (15), the storage tray (15) is located obliquely below the filter structure (3), and the ion exchange column (6) on the side of the storage tray (15) close to the intermittent liquid inlet mechanism (2) is docked with the filter structure (3), a plurality of groups of connecting pipes (61) are radially distributed on the outer side of the ion exchange column (6), and the connecting pipes (61) are connected to the inside of the ion exchange column (6), the heights of the plurality of groups of connecting pipes (61) gradually increase, and the tops of the connecting pipes (61) are at the same horizontal height, and the top of the ion exchange column (6) is also fixedly connected to a fixed tray (62), and the fixed tray (6 2) is provided with a flow channel (621) in communication with the connecting pipe (61), a docking pipe (63) is rotatably provided on the upper part of the fixed disk (62), the docking pipe (63) is used to dock with the filtering structure (3), a docking port (631) in communication with the flow channel (621) is provided on the side of the docking pipe (63), a liquid discharge port (64) is provided on the bottom of the ion exchange column (6), a large gear (151) is rotatably connected to the lower part of the storage disk (15), the large gear (151) is engaged with the outside of the ion exchange column (6), and a linkage mechanism (7) is provided between the large gear (151) and the movable rod (22) in the purification tank (1), the linkage mechanism (7) is used to intermittently drive the ion exchange column (6) to rotate after accumulating force through multiple extensions and retractions of the movable rod (22).

2. The pickling waste liquid recycling equipment for quartz sand processing according to claim 1, characterized in that: A regeneration liquid inlet pipe (18) is provided in the middle of the side of the purification tank (1), and the regeneration liquid inlet pipe (18) is connected to the upper part of the ion exchange column (6) in the storage tray (15) away from the intermittent liquid inlet mechanism (2). A discharge pipe (17) and a regeneration liquid outlet pipe (19) are provided at the lower part of the side of the purification tank (1). The regeneration liquid outlet pipe (19) is connected to the lower part of the ion exchange column (6) in the storage tray (15) away from the intermittent liquid inlet mechanism (2). The discharge pipe (17) is connected to the lower part of the ion exchange column (6) in the storage tray (15) close to the intermittent liquid inlet mechanism (2). The regeneration liquid inlet pipe (18) is used to input a regeneration agent to contact with the internal resin to exchange metal ions in the internal resin. The top of the storage tray (15) extends to the outside of the purification tank (1) through an axis and is fixedly connected to a rotating disk (16).

3. The pickling waste liquid recycling equipment for quartz sand processing according to claim 1, characterized in that: The linkage mechanism (7) comprises a fixed plate (71) fixedly connected to the outer wall of the movable rod (22), and a tooth plate (72) movably mounted on the other side of the fixed plate (71), the tooth plate (72) being elastically slidably connected to the side of the fixed plate (71) via a spring, and the linkage mechanism (7) further comprises a rotating roller (73) rotatably connected to the inside of the purification tank (1), first ratchet teeth (731) being evenly distributed at the rear of the outer side of the rotating roller (73), and a first protrusion (732) being arranged at the front of the outer side of the rotating roller (73), and a shaft being mounted in front of the rotating roller (73), and a torsion spring (733) being fixedly mounted between the shaft and the inside of the purification tank (1).

4. The pickling waste liquid recycling equipment for quartz sand processing as claimed in claim 3 is characterized in that: The linkage mechanism (7) further comprises a limit plate (74) slidably connected to the interior of the purification tank (1); a slide groove corresponding to the limit plate (74) is provided inside the purification tank (1); the limit plate (74) is located above the rotating roller (73); a clamping block (741) is provided at the rear of the bottom of the limit plate (74); a second protrusion (742) is provided at the front of the bottom of the limit plate (74); the clamping block (741) corresponds to the first ratchet (731); the second protrusion (742) corresponds to the first protrusion (732); and a damping spring (743) is installed between the top of the limit plate (74) and the slide groove.

5. The pickling waste liquid recycling equipment for quartz sand processing as claimed in claim 4, characterized in that: The cross-sections of the end of the tooth plate (72), the first ratchet tooth (731) and the clamping block (741) are all right triangles.

6. The device for recycling pickling waste liquid from quartz sand processing according to claim 5, characterized in that: The linkage mechanism (7) further comprises a transmission gear set (75) arranged behind the rotating roller (73), the transmission gear set (75) comprising two sets of mutually meshing helical gears, one set of which is fixedly connected to the rotating roller (73), and the linkage mechanism (7) further comprises a ratchet gear set (77) and a small gear (76) arranged below the transmission gear set (75), the small gear (76) being meshingly connected to the large gear (151), and the gear ratio between the large gear (151) and the small gear (76) being 4:

1.

7. The device for recycling pickling waste liquid from quartz sand processing according to claim 6, characterized in that: The ratchet gear set (77) comprises, from the inside to the outside, an inner cylinder (772), a plurality of groups of radially distributed second ratchet teeth (773), and an outer sleeve (771); the inner cylinder (772) is fixedly connected to another group of helical gears via a shaft, and the outer sleeve (771) is fixedly connected to the pinion gear (76) via a shaft.

8. The equipment for recycling pickling waste liquid from quartz sand processing as claimed in claim 7, characterized in that: The filtering structure (3) comprises a filter screen (31) rotatably arranged in the middle of the active chamber (14), an activated carbon adsorption layer (32) and a filter membrane (33) fixedly arranged at the bottom of the active chamber (14); a first liquid accumulation hopper (311) and a second liquid accumulation hopper (331) are respectively provided at the bottom of the filter screen (31) and the filter membrane (33); the second liquid accumulation hopper (331) is used to dock with the top of the ion exchange column (6); the filter screen (31), the activated carbon adsorption layer (32) and the filter membrane (33) are all annular, and the movable rod (22) passes through the filter screen (31), the activated carbon adsorption layer (32) and the filter membrane (33) upwards.

9. The equipment for recycling pickling waste liquid from quartz sand processing as claimed in claim 8, characterized in that: A driving mechanism (4) is arranged outside the purification tank (1), and the driving mechanism (4) comprises a motor (41) fixedly mounted on the outer wall of the purification tank (1), an active roller (42) is fixedly connected to the output end of the motor (41), and a belt (43) is sleeved between the active roller (42) and the filter screen (31).

10. The equipment for recycling pickling waste liquid from quartz sand processing according to claim 9, characterized in that: A cleaning mechanism (5) is arranged outside the movable rod (22) and above the filter screen (31). The cleaning mechanism (5) comprises an arc plate (51) rotatably connected to the outside of the movable rod (22). The arc plate (51) comprises four groups of spiral plates and a rotating ring fixedly connected to the middle of the spiral plates. A cover plate (52) is installed on the periphery of the arc plate (51). The cover plate (52) is a truncated cone-shaped shell with a small upper part and a large lower part. A sealing gasket is arranged at the bottom of the cover plate (52). A sliding groove (511) is arranged at the lower part of the inner part of the arc plate (51). A scraper (53) is slidably connected to the lower part of the sliding groove (511). The bottom of the scraper (53) is V-shaped. A compression spring (531) is installed between the top of the scraper (53) and the inner wall of the sliding groove (511).

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