A wastewater treatment device and a method for flotation separation of sulfide ores

Abstract

This invention provides a wastewater treatment device and a flotation separation method for sulfide ores, relating to the field of wastewater treatment technology. The wastewater treatment device includes: an installation platform and a pretreatment mechanism, a water quality conditioning mechanism, a deep purification mechanism, and a water quality stabilization mechanism installed on the installation platform; the pretreatment mechanism includes: a collection chamber, within which a separator is fixed. The flotation separation method for sulfide ores includes the following steps: Step S1, raw ore pretreatment; Step S2, slurry separation; Step S3, further extraction of copper concentrate; Step S4, further extraction of lead concentrate. Within the scope of a single collection chamber, wastewater filtration, homogenization, and degradation can be achieved, realizing multi-purpose functionality; reducing the number of devices, reducing floor space, and increasing integration; simultaneously, combined with water quality conditioning, deep purification, and water quality stabilization, it facilitates multi-stage wastewater treatment and resource recovery.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device and a flotation separation method for sulfide ores. Background Technology

[0002] Wastewater treatment is a key aspect of environmental protection. Its core is to remove pollutants from wastewater through a series of physical, chemical, or biological treatment processes, so that the treated wastewater meets the standards for discharge or reuse.

[0003] Currently, conventional wastewater treatment processes typically involve multiple steps, including pretreatment, water quality adjustment, adsorption filtration, deep purification, and water quality stabilization. Each treatment step often requires dedicated equipment, and the equipment is connected to each other via external pipelines to form a complete treatment system.

[0004] Using existing wastewater treatment equipment requires separate site planning for the installation of each piece of equipment, and the connecting pipes between the equipment are complicated. This not only leads to a significant increase in the footprint of the entire wastewater treatment system and high land use costs, but also presents problems such as complex installation and commissioning and long construction periods, making it difficult to adapt to application scenarios with limited land resources.

[0005] Therefore, it is necessary to provide a wastewater treatment device to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a wastewater treatment device that solves the problems of large space occupation and insufficient integration of wastewater treatment equipment in related technologies.

[0007] To solve the above-mentioned technical problems, the present invention provides a wastewater treatment device, comprising:

[0008] The installation platform includes a pretreatment unit, a water quality conditioning unit, a deep purification unit, and a water quality stabilization unit installed on the installation platform. The pretreatment unit is used for removing impurities and degrading wastewater, the water quality conditioning unit is used for regulating the water quality of the wastewater after impurity removal, the deep purification unit is used for adsorbing the degraded wastewater, and the water quality stabilization unit is used for storing the adsorbed wastewater.

[0009] The pretreatment mechanism includes:

[0010] A collection chamber is provided, wherein a partition cylinder is fixedly installed inside the collection chamber, the partition cylinder dividing the collection chamber into a homogenization chamber and a degradation chamber, a degradation plate is provided in the degradation chamber, the inner side of the degradation plate is fixed to the partition cylinder, and the outer side of the degradation plate is slidably sealed to the collection chamber; an output pipe is provided on the outer wall of the collection chamber;

[0011] The isolation filter cover is installed on the inner wall of the collection chamber and is located within the homogenization chamber.

[0012] A homogenizing component is installed at the bottom of the collection chamber and within the homogenizing cavity, for stirring and homogenizing wastewater within the homogenizing cavity;

[0013] The injection tube has its output end installed through the top of the collection chamber and connected to the homogenization chamber area covered by the isolation filter cover.

[0014] The installation platform is also equipped with a first delivery pump and a second delivery pump. The input end of the first delivery pump is installed through the bottom of the collection chamber and is connected to the homogenization chamber. The output end of the first delivery pump is installed through the input end of the water quality adjustment mechanism.

[0015] The input end of the second delivery pump is installed through the output end of the water quality conditioning mechanism, the output end of the second delivery pump is installed through the bottom of the collection chamber, and the output end of the second delivery pump is connected to the degradation chamber;

[0016] The input end of the output pipe is connected to the degradation chamber, and the output end of the output pipe is connected to the input end of the deep purification mechanism; the output end of the deep purification mechanism is connected to the input end of the water quality stabilization mechanism.

[0017] Preferably, at least four sets of degradation plates are provided, and the at least four sets of degradation plates are arranged in parallel within the degradation cavity.

[0018] Preferably, a cover plate is fixedly installed on the top of the collection chamber, the isolation filter cover is installed at the bottom of the cover plate, and the output end of the injection pipe passes through the cover plate and communicates with the homogenization chamber.

[0019] Preferably, the homogenizing component includes a driving member, a synchronous shaft, and a homogenizing rod. The fixing part of the driving member is fixed to the bottom of the collection chamber, the bottom of the synchronous shaft passes through the collection chamber and is fixed to the driving part of the driving member, and the homogenizing rod is fixed to the top of the synchronous shaft.

[0020] Preferably, the top of the isolation filter cover is rotatably mounted on the bottom of the cover plate; the wastewater treatment device further includes a scraper, the top of which is fixedly mounted on the bottom of the cover plate, and the scraper is movably connected to the inner wall of the isolation filter cover;

[0021] The top of the synchronous shaft is connected to the bottom of the isolation filter cover via a keyway.

[0022] Preferably, there are two scrapers, which are arranged around the inner side of the isolation filter cover.

[0023] Preferably, the wastewater treatment device further includes a slag discharge assembly, which includes a fixed cover, a spiral conveying rod, and a slag discharge pipe. The fixed cover is fixedly inserted through the cover plate, and the bottom of the fixed cover is rotatably and sealingly connected to the isolation filter cover. A filter cover is integrated on the fixed cover and inserted into the collection range of the isolation filter cover. A through hole is opened at the bottom of the filter cover. The spiral conveying rod is rotatably installed within the range of the fixed cover, and the top of the spiral conveying rod is rotatably installed on the fixed cover. The input end of the slag discharge pipe is fixedly connected to the output end of the fixed cover.

[0024] The spiral conveyor rod rotates and drives the slag material entering the fixed cover area to be conveyed upward.

[0025] Preferably, an independent motor is provided at the top of the spiral conveyor rod.

[0026] Preferably, the bottom of the spiral conveyor rod is fixed to the isolation filter cover, and the spiral conveyor rod rotates synchronously when the isolation filter cover rotates.

[0027] This invention also provides a flotation separation method for sulfide ores, comprising the following steps:

[0028] Step S1, raw ore pretreatment: After the raw ore is initially ground, copper collector and lead collector are added, and a flotation is performed to obtain a mixed slurry;

[0029] Step S2, slurry separation: copper collector and composite inhibitor are added to the mixed slurry for secondary flotation to obtain copper slurry and lead slurry;

[0030] Step S3: Further extraction of copper concentrate is carried out by adding a composite inhibitor to the copper slurry and performing at least three flotation separations to obtain copper concentrate.

[0031] Step S4: The lead concentrate is further extracted and separated by at least two flotation processes to obtain the lead concentrate.

[0032] Step S5, wastewater recycling: The wastewater generated during the flotation process is injected into the wastewater treatment device for centralized collection, realizing multi-stage treatment of wastewater for resource recycling and utilization.

[0033] Compared with related technologies, the wastewater treatment device provided by the present invention has the following beneficial effects:

[0034] Within the scope of the collection chamber, wastewater can be filtered, homogenized, and degraded, achieving multiple functions in one machine; reducing the number of devices and floor space required; increasing the degree of integration; and facilitating multi-stage treatment of wastewater by combining water quality regulation, deep purification, and water quality stabilization, thus enabling the resource recycling and reuse of wastewater. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 A three-dimensional view of a first embodiment of a wastewater treatment device provided by the present invention;

[0037] Figure 2 for Figure 1 A 3D view of a partial cross-section of the collection chamber shown;

[0038] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of section AA shown;

[0039] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of section BB shown;

[0040] Figure 5 for Figure 3 A top view of the horizontal cross-section of the degradation plate shown;

[0041] Figure 6 A partial three-dimensional view of a second embodiment of a wastewater treatment device provided by the present invention;

[0042] Figure 7 This is a schematic diagram of a second embodiment of a wastewater treatment device provided by the present invention, wherein, Figure 7 (a) is a schematic diagram of the switch panel in the closed state. Figure 7 (b) is a schematic diagram of the structure with wastewater being extracted from the bottom of the isolation plate. Figure 7 (c) in the diagram shows the state of the wastewater after the switch is turned on and the wastewater flows.

[0043] Figure 8 A flowchart of a flotation separation method for sulfide ores provided by the present invention.

[0044] Explanation of icon numbers:

[0045] 10. Install the platform;

[0046] 20. Pre-treatment facility;

[0047] 1. Collection chamber; 11. Divider cylinder; 100. Homogenization chamber; 200. Degradation chamber; 12. Cover plate; 13. Degradation plate; 14. Output pipe;

[0048] 2. Isolation filter cover;

[0049] 3. Scraper;

[0050] 4. Slag discharge assembly; 41. Fixing cover; 411. Filter cover; 410. Through hole; 42. Screw conveyor rod; 43. Slag discharge pipe;

[0051] 5. Homogenizing component; 51. Drive component; 52. Synchronous shaft; 53. Homogenizing rod;

[0052] 6. Injection tubing;

[0053] 7. First delivery pump;

[0054] 8. Second transfer pump;

[0055] 30. Water quality regulation mechanism;

[0056] 301. Pool body; 302. Isolation plate; 303. Telescopic component; 304. Switch plate; 300. Ventilation chamber;

[0057] 40. Deep purification system;

[0058] 50. Water quality stabilization agency.

[0059] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0060] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0061] This invention provides a wastewater treatment device.

[0062] First embodiment.

[0063] Please see Figures 1 to 4 In this invention, a wastewater treatment device includes:

[0064] The installation platform 10 includes a pretreatment mechanism 20, a water quality conditioning mechanism 30, a deep purification mechanism 40, and a water quality stabilization mechanism 50 installed on the installation platform 10. The pretreatment mechanism 20 is used for the removal of impurities and degradation of wastewater. The water quality conditioning mechanism 30 is used for the water quality regulation of the wastewater after impurity removal. The deep purification mechanism 40 is used for the adsorption of the degraded wastewater. The water quality stabilization mechanism 50 is used for the storage of the adsorbed wastewater.

[0065] The pretreatment mechanism 20 includes:

[0066] A collection chamber 1 is provided, and a partition cylinder 11 is fixedly installed inside the collection chamber 1. The partition cylinder 11 divides the collection chamber 1 into a homogenization chamber 100 and a degradation chamber 200. A degradation plate 13 is provided inside the degradation chamber 200. The inner side of the degradation plate 13 is fixed to the partition cylinder 11, and the outer side of the degradation plate 13 is slidably sealed with the collection chamber 1. An output pipe 14 is provided on the outer wall of the collection chamber 1.

[0067] The isolation filter hood 2 is installed on the inner wall of the collection chamber 1 and is located within the homogenization chamber 100.

[0068] Homogenizing component 5 is installed at the bottom of the collection chamber 1 and within the range of the homogenizing chamber 100, and is used for stirring and homogenizing wastewater in the homogenizing chamber 100.

[0069] The liquid injection tube 6 has its output end installed through the top of the collection chamber 1 and connected to the homogenization chamber 100 area covered by the isolation filter cover 2.

[0070] The installation platform 10 is also equipped with a first delivery pump 7 and a second delivery pump 8. The input end of the first delivery pump 7 is installed through the bottom of the collection chamber 1. The input end of the first delivery pump 7 is connected to the homogenization chamber 100. The output end of the first delivery pump 7 is installed through the input end of the water quality adjustment mechanism 30.

[0071] The input end of the second delivery pump 8 is installed through the output end of the water quality conditioning mechanism 30, and the output end of the second delivery pump 8 is installed through the bottom of the collection chamber 1. The output end of the second delivery pump 8 is connected to the degradation chamber 200.

[0072] The input end of the output pipe 14 is connected to the degradation chamber 200, and the output end of the output pipe 14 is connected to the input end of the deep purification mechanism 40; the output end of the deep purification mechanism 40 is connected to the input end of the water quality stabilization mechanism 50.

[0073] In this embodiment, the pretreatment mechanism 20 is used for pretreatment of wastewater. Within the collection chamber 1, the homogenization chamber 100 facilitates the removal of impurities and homogenization of wastewater, and the degradation chamber 200 facilitates the degradation of wastewater.

[0074] The water quality adjustment mechanism 30 is used for further water quality adjustment of the pretreated wastewater, allowing it to settle and stabilize its flow.

[0075] The deep purification mechanism 40 is used for further physical adsorption of the degraded wastewater to remove organic impurities and heavy metal ion complexes, thereby further reducing the turbidity of the wastewater.

[0076] Specifically, the degradation plate 13 is filled with an immobilized microbial carrier, which is a porous ceramic ball containing a complex microbial community capable of degrading sulfonated chitosan quaternary ammonium salt and phosphoryl azo chelating agent. Wastewater enters the degradation chamber 200 in a bottom-in, top-out manner and passes through the microbial carrier, facilitating the biodegradation of the wastewater within the collection chamber 1.

[0077] In this embodiment, the isolation filter cover 2 is a stainless steel filter screen structure, which allows wastewater to pass through while blocking sediment in the wastewater, so that the sediment can be collected inside the isolation filter cover 2.

[0078] The first delivery pump 7 is a self-priming, non-clogging sewage pump used to pump wastewater from the homogenization chamber 100 to the water quality conditioning mechanism 30; the second delivery pump 8 is a magnetically driven centrifugal pump used to pump the wastewater after water quality conditioning in the water quality conditioning mechanism 30 to the degradation chamber 200.

[0079] When wastewater is injected into the pretreatment mechanism 20 through the injection pipe 6, the pretreatment mechanism 20 can filter and homogenize the wastewater. After the wastewater enters the water quality adjustment mechanism 30 for water quality adjustment, it can also flow back into the pretreatment mechanism 20 for wastewater degradation.

[0080] The degraded wastewater enters the deep purification unit 40, where trace amounts of undegraded organic impurities and heavy metal ion complexes are removed through physical adsorption, further reducing the turbidity of the wastewater. The purified wastewater is then transported to the water quality stabilization unit 50, where a regulator is added to meet the requirements and standards for wastewater reuse.

[0081] Within the scope of the collection chamber 1, wastewater filtration, homogenization and degradation can be achieved, realizing multiple uses in one machine; reducing the number of equipment and the space occupied, with a higher degree of integration, and at the same time, it can be combined with water quality adjustment, deep purification and water quality stabilization to facilitate multi-stage treatment of wastewater, which is convenient for the resource recycling and utilization of wastewater.

[0082] In a preferred embodiment of this example, at least four sets of degradation plates 13 are provided, and the at least four sets of degradation plates 13 are arranged in parallel within the degradation cavity 200.

[0083] By setting up four sets of degradation plates 13, the wastewater after water quality adjustment flows back into the degradation chamber 200, and then passes through the four sets of degradation plates 13 in sequence, further improving the adequacy of wastewater degradation.

[0084] Please refer to the following: Figure 2 and Figure 3 The top of the collection chamber 1 is fixedly installed with a cover plate 12, the isolation filter cover 2 is installed at the bottom of the cover plate 12, and the output end of the injection pipe 6 passes through the cover plate 12 and communicates with the homogenization chamber 100.

[0085] Specifically, the cover plate 12 is detachably installed on the top of the collection chamber 1 by bolts, so as to facilitate the removal and maintenance of the cover plate 12 relative to the collection chamber 1.

[0086] When the cover plate 12 is fixedly installed on the top of the collection chamber 1, the equipment can operate stably; when the cover plate 12 is removed from the top of the collection chamber 1, the isolation filter cover 2 can be removed from the collection chamber 1 along with the cover plate 12, so as to facilitate the maintenance of the isolation filter cover 2.

[0087] Please refer to the following: Figure 3 and Figure 4 The homogenizing component 5 includes a driving member 51, a synchronous shaft 52, and a homogenizing rod 53. The fixed part of the driving member 51 is fixed to the bottom of the collection chamber 1. The bottom of the synchronous shaft 52 passes through the collection chamber 1 and is fixed to the driving part of the driving member 51. The homogenizing rod 53 is fixed to the top of the synchronous shaft 52.

[0088] In this embodiment, the driving component 51 is a motor structure used to drive the rotation adjustment of the synchronous shaft 52. When the synchronous shaft 52 rotates, it drives the homogenizing rod 53 to rotate, which facilitates the stirring and homogenization of wastewater in the homogenizing chamber 100.

[0089] When it is necessary to homogenize the wastewater in the homogenization chamber 100, the drive unit 51 is activated. The drive unit 51 drives the synchronous shaft 52 to rotate, and the synchronous shaft 52 drives the homogenizing rod 53 to rotate. The homogenizing rod 53 stirs and homogenizes the wastewater within the homogenization chamber 100 to facilitate the homogenization pretreatment of the wastewater.

[0090] Please refer to the following: Figure 2 , Figure 3 and Figure 5The top of the isolation filter cover 2 is rotatably mounted on the bottom of the cover plate 12; the wastewater treatment device also includes a scraper 3, the top of which is fixed to the bottom of the cover plate 12, and the scraper 3 is movably connected to the inner wall of the isolation filter cover 2.

[0091] The top of the synchronous shaft 52 is connected to the bottom of the isolation filter cover 2 via a keyway.

[0092] In this embodiment, "sliding key connection" means that when the synchronous shaft 52 rotates, it can also synchronously drive the isolation filter cover 2 to rotate on the cover plate 12; when the cover plate 12 is removed from the collection chamber 1, the cover plate 12 also drives the isolation filter cover 2 to separate from the synchronous shaft 52.

[0093] Specifically, a rectangular block is provided on the top of the synchronous shaft 52, and a rectangular groove is provided on the bottom of the isolation filter cover 2. When the isolation filter cover 2 is connected to the synchronous shaft 52, the rectangular block is inserted into the rectangular groove to ensure the stability of the connection between the isolation filter cover 2 and the synchronous shaft 52.

[0094] Synchronous rotation maintenance principle:

[0095] When the drive unit 51 controls the synchronous shaft 52 to rotate, the synchronous shaft 52 drives the homogenizing rod 53 to stir and homogenize the wastewater in the homogenizing chamber 100; on the other hand, it drives the isolation filter cover 2 to rotate in the homogenizing chamber 100, so that the filtered and separated wastewater passes through the isolation filter cover 2 and stably enters the homogenizing range of the homogenizing chamber 100.

[0096] During the rotation of the isolation filter cover 2, the scraper 3 scrapes and cleans the sediment attached to the inner wall of the isolation filter cover 2, so that the sediment can fall stably to the bottom of the isolation filter cover 2, reducing the phenomenon of blockage on the inner wall of the isolation filter cover 2 and extending the service life of the equipment.

[0097] Ultimately, under the control of the drive unit 51, the wastewater is simultaneously homogenized and stirred, and the isolation filter cover 2 is scraped and maintained, thus extending the service life of the equipment.

[0098] In a preferred embodiment of this invention, two scrapers 3 are provided, and the two scrapers 3 are arranged around the inner side of the isolation filter cover 2. The two scrapers 3 help to improve the efficient cleaning and maintenance of the inner side of the isolation filter cover 2 and prevent clogging of the surface of the isolation filter cover 2.

[0099] Please refer to the following: Figure 3 and Figure 5The wastewater treatment device further includes a slag discharge assembly 4, which includes a fixed cover 41, a spiral conveying rod 42, and a slag discharge pipe 43. The fixed cover 41 is fixedly inserted through the cover plate 12. The bottom of the fixed cover 41 is rotatably and sealingly connected to the isolation filter cover 2. A filter cover 411 is integrated on the fixed cover 41. The filter cover 411 is inserted into the collection range of the isolation filter cover 2. A through hole 410 is opened at the bottom of the filter cover 411. The spiral conveying rod 42 is rotatably installed within the range of the fixed cover 41. The top of the spiral conveying rod 42 is rotatably installed on the fixed cover 41. The input end of the slag discharge pipe 43 is fixedly connected to the output end of the fixed cover 41.

[0100] The spiral conveyor rod 42 rotates and drives the slag material that enters the range of the fixed cover 41 to be conveyed upward.

[0101] Both the filter cover 411 and the isolation filter cover 2 allow only wastewater to pass through, while sediment or sludge cannot pass through.

[0102] The filter cover 411 is used to isolate the transported sediment and wastewater, so that when the spiral conveyor rod 42 drives the sediment to be transported upward along the inside of the filter cover 411, the wastewater will not be transported upward.

[0103] In a preferred embodiment of this example, an independent motor is provided at the top of the spiral conveying rod 42. The independent motor is used to directly drive the spiral conveying rod 42 to rotate and adjust relative to the fixed cover 41, which facilitates the individual control of the spiral conveying rod 42.

[0104] Centralized collection of precipitates:

[0105] Wastewater first enters the space between the isolation filter cover 2 and the filter cover 411 through the injection pipe 6, and then settles downwards to the bottom of the isolation filter cover 2. The sediment enters the rotational conveying range of the screw conveyor 42 through the through hole 410.

[0106] Convection and discharge of sediments:

[0107] The spiral conveyor rod 42 is controlled to rotate. The spiral conveyor rod 42 rotates relative to the filter cover 411. When the spiral conveyor rod 42 rotates, it drives the sediment to be conveyed upward. During the conveying process, the wastewater will not be conveyed upward with the sediment after passing through the filter cover 411. Therefore, only the sediment is conveyed in the direction of the slag discharge pipe 43 and the sediment is discharged outward through the slag discharge pipe 43.

[0108] Without requiring equipment shutdown or opening, sediment from the wastewater treatment process can be centrally transported and discharged, preventing sediment blockage after long-term operation and extending the equipment's service life.

[0109] In another preferred embodiment of this example, the bottom of the spiral conveying rod 42 is fixed to the isolation filter cover 2, and the spiral conveying rod 42 rotates synchronously when the isolation filter cover 2 rotates.

[0110] The bottom of the spiral conveyor 42 is directly connected to the isolation filter cover 2. When the driving component 51 drives the homogenizing rod 53 to rotate through the synchronous shaft 52, it can not only drive the isolation filter cover 2 to rotate, but also drive the spiral conveyor 42 to rotate through the isolation filter cover 2. This makes it convenient for the driving component 51 to simultaneously achieve water homogenization, cleaning and maintenance of the isolation filter cover 2, and vertical transport and sludge discharge of sediment.

[0111] The working principle of the wastewater treatment device provided in this embodiment is as follows:

[0112] A1, wastewater pretreatment: First, the wastewater to be purified is injected into the space between the isolation filter cover 2 and the filter cover 411 through the injection pipe 6. The wastewater directly passes through the isolation filter cover 2 and enters the homogenization chamber 100. The sediment in the wastewater is blocked and collected within the space of the isolation filter cover 2.

[0113] The drive unit 51 is activated, which drives the synchronous shaft 52 to rotate. The synchronous shaft 52 drives the homogenizing rod 53 to rotate, and the homogenizing rod 53 stirs and homogenizes the wastewater in the homogenizing chamber 100.

[0114] The synchronous shaft 52 also synchronously drives the isolation filter cover 2 to rotate relative to the scraper 3. While the isolation filter cover 2 rotates, the scraper 3 scrapes and maintains the inner wall of the isolation filter cover 2 to prevent sediment in the wastewater from adhering to the inner wall of the isolation filter cover 2.

[0115] The precipitate settles downwards and collects at the bottom of the collection range of the isolation filter hood 2, and enters the range of the filter hood 411 through the through hole 410;

[0116] The synchronous shaft 52 also synchronously drives the spiral conveying rod 42 to rotate relative to the filter cover 411. While the spiral conveying rod 42 rotates, it drives the sediment to be conveyed upward. The sediment is conveyed to the inside of the slag discharge pipe 43 and discharged and conveyed outward through the slag discharge pipe 43, so as to facilitate the synchronous conveying and discharge of sediment in the isolation filter cover 2 and avoid sediment accumulation.

[0117] This allows for the simultaneous mixing and homogenization of wastewater, scraping and maintenance of the isolation filter cover 2, and conveying and discharging of sediments.

[0118] A2, Wastewater quality adjustment: After the wastewater pretreatment in the homogenization chamber 100 is completed, the first delivery pump 7 is started. The first delivery pump 7 draws the wastewater in the homogenization chamber 100 and delivers it into the water quality adjustment mechanism 30. The wastewater is buffered and stored in the water quality adjustment mechanism 30 to facilitate natural water quality adjustment.

[0119] A3. After water quality adjustment, the second delivery pump 8 is started. The second delivery pump 8 draws the wastewater in the water quality adjustment mechanism 30 and delivers it to the degradation chamber 200. The wastewater passes through the degradation plate 13 from bottom to top to achieve multi-layer biological degradation of the wastewater. The biologically degraded wastewater is then transported to the interior of the deep purification mechanism 40 through the output pipe 14.

[0120] A4, deep purification of wastewater, wherein the deep purification mechanism 40 adsorbs undecomposed organic impurities and heavy metal ions in the wastewater, reduces the turbidity of the wastewater, and further purifies the water quality.

[0121] A5, water quality stabilization: the wastewater purified by the deep purification mechanism 40 directly enters the interior of the water quality stabilization mechanism 50 to facilitate the subsequent stabilization and storage of the purified wastewater.

[0122] Second embodiment.

[0123] Please see Figure 6 Based on the wastewater treatment apparatus provided in the first embodiment of the present invention, the second embodiment of the present invention proposes another wastewater treatment apparatus. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0124] Specifically, the wastewater treatment device provided in the second embodiment of the present invention differs in that the water quality adjustment mechanism 30 includes a pool body 301, an isolation plate 302, a telescopic member 303, and a switch plate 304. The bottom of the pool body 301 is fixedly installed on the top of the installation platform 10, the isolation plate 302 is fixedly installed in the middle of the pool body 301, and the two ends of the telescopic member 303 are fixedly connected to the outer wall of the pool body 301 and the switch plate 304.

[0125] The bottom of the switch plate 304 is inserted into the pool body 301 and abuts against the top of the isolation plate 302, forming a ventilation chamber 300 between the isolation plate 302 and the pool body 301.

[0126] The output end of the first delivery pump 7 is aligned with the space above the isolation plate 302;

[0127] The input end of the second delivery pump 8 is aligned with the space below the isolation plate 302;

[0128] When the switch plate 304 is opened upwards, the top space of the isolation plate 302 is connected to the bottom space of the isolation plate 302 through the ventilation chamber 300.

[0129] In this embodiment, an online pH monitor is integrated on the pool body 301 to monitor the pH of the wastewater injected into the pool body 301 in real time. Physical buffering is used to mitigate some pH fluctuations.

[0130] In this embodiment, the telescopic member 303 can be an electric telescopic rod, a hydraulic telescopic rod, or a telescopic cylinder, used to directly drive the lifting and lowering adjustment of the switch plate 304, so as to facilitate the state switching of the switch plate 304.

[0131] In this embodiment, the switch board 304 includes two states:

[0132] In the off state, such as Figure 7 As shown in (a), the bottom of the switch plate 304 abuts against the top of the isolation plate 302, and the wastewater above the isolation plate 302 is stored independently for easy individual water quality adjustment;

[0133] Open state, such as Figure 7 As shown in (c), the bottom of the switch plate 304 is separated from the top of the isolation plate 302, and the wastewater after water quality adjustment above the isolation plate 302 flows downward through the ventilation chamber 300 and is transported to the bottom of the isolation plate 302.

[0134] When it is necessary to receive and adjust the water quality of the pretreated wastewater, the telescopic component 303 is activated. The telescopic component 303 drives the switch plate 304 to move down. The switch plate 304 moves down and abuts against the top of the isolation plate 302, so that the switch plate 304 is adjusted to the closed state. This allows the pretreated wastewater to be stored separately above the isolation plate 302, facilitating individual water quality adjustment of the wastewater.

[0135] When it is necessary to store the pretreated wastewater, the telescopic component 303 is activated again. The telescopic component 303 moves the switch plate 304 upward, separating it from the top of the isolation plate 302. The switch plate 304 switches from the closed state to the open state, allowing the wastewater above the isolation plate 302 to flow downward through the ventilation chamber 300 for storage. This ensures that the pretreated wastewater is centrally stored below the isolation plate 302. The integrated equipment reduces the number of devices and facilitates continuous operation. Water quality adjustment and independent storage of pretreated wastewater can be achieved simultaneously within a single tank 301.

[0136] The working principle of a wastewater treatment device provided in this embodiment is as follows:

[0137] like Figure 7 As shown in (a), it can be defined that the switch plate 304 is in the closed state, and wastewater is stored above and below the isolation plate 302. The wastewater above the isolation plate 302 is used for water quality adjustment.

[0138] At the same time, in conjunction with reference Figure 7 (a) to Figure 7 In (b), the wastewater stored below the isolation plate 302 is transported to the degradation chamber 200 by the second transfer pump 8;

[0139] After the wastewater quality above the isolation plate 302 is adjusted, the telescopic component 303 is activated, which drives the switch plate 304 to move upward, and the switch plate 304 switches from the closed state to the open state.

[0140] After the switch plate 304 is opened, the wastewater above the isolation plate 302 enters the area below the isolation plate 302 through the ventilation chamber 300, so as to facilitate the separate storage of the wastewater after water quality adjustment.

[0141] Reactivate the telescopic component 303, which causes the switch plate 304 to move downward, switching the switch plate 304 from the open state to the closed state;

[0142] After the switch plate 304 is closed, the wastewater in the homogenization chamber 100 is transported to the top of the isolation plate 302 by the first delivery pump 7, so as to replenish the wastewater that needs water quality adjustment.

[0143] In one application scenario of this solution, the wastewater treatment device can be used to treat industrial production wastewater, so as to purify the industrial production wastewater, reduce the pollution of the discharged water source to the environment, and facilitate the reuse of water sources.

[0144] In another application scenario of this solution, the wastewater treatment device can be used to treat mineral processing wastewater, which facilitates the resource-based treatment and recycling of mineral processing wastewater, reduces resource waste, and saves energy and protects the environment.

[0145] In another application scenario of this solution, the wastewater treatment device can be used for the treatment of municipal sewage, which facilitates the purification and recycling of sewage, reduces environmental impact, and is more environmentally friendly.

[0146] A flotation separation method for sulfide ores.

[0147] This invention also provides a flotation separation method for sulfide ores, comprising the following steps:

[0148] Step S1, raw ore pretreatment: After the raw ore is initially ground, copper collector and lead collector are added, and a flotation is performed to obtain the target slurry and tailings slurry.

[0149] Step S2, slurry separation: copper collector and composite inhibitor are added to the mixed slurry for secondary flotation to obtain copper slurry and lead slurry;

[0150] Step S3: Further extraction of copper concentrate is carried out by adding a composite inhibitor to the copper slurry and performing at least three flotation separations to obtain copper concentrate.

[0151] Step S4: The lead concentrate is further extracted and separated by at least two flotation processes to obtain the lead concentrate.

[0152] Step S5, wastewater recycling: The wastewater generated during the flotation process is injected into the wastewater treatment device for centralized collection, realizing multi-stage treatment of wastewater pretreatment, water quality adjustment, deep purification and water quality stabilization, for the resource recycling and utilization of wastewater.

[0153] The copper selective collector is at least one of the mercaptobenzimidazole derivatives, namely Cu-Select 9, Z-200, and ethyl thiocyanate;

[0154] The lead selective collector is at least one of HQ77 and HQD82;

[0155] The composite inhibitor comprises at least one of sulfonated chitosan quaternary ammonium salt HPG-8 and N-carboxymethyl chitosan quaternary ammonium salt, and at least one of phosphoryl azo chelating agent LTP-302 and phosphoryl azo salicylic acid.

[0156] Furthermore, the flotation separation method for the sulfide ore further includes the following steps:

[0157] In step S6, the tailings will be separated and floated, and zinc concentrate and tailings slag will be obtained by extraction with zinc capture agent and composite inhibitor.

[0158] Eliminating the use of cyanide and chromate has solved a core problem hindering the sustainable development of the industry. Through the adaptive properties of biomimetic inhibitors, the failure of traditional alternatives in natural pH environments has been successfully overcome; defects such as oxidative deactivation of sulfite agents, high-alkalinity scaling in thiosulfate systems, and sluggish reaction kinetics of organic chelating agents have been simultaneously resolved. More significantly, an ecological closed loop in the sorting process has been achieved: after completing their interfacial function, inhibitor molecules can spontaneously degrade into environmentally friendly substances to participate in the ecological restoration of the mining area, reducing the toxicity load of mineral processing wastewater to natural background levels, mitigating the risk of heavy metal pollution at its source, and transforming the mineral development process from ecological destruction to environmental benefit.

[0159] Case 1:

[0160] In this embodiment, ethyl thiocyanate is used as the copper collector at a dosage of 350 g / t.

[0161] The lead collector is HQ77, and the dosage is 200 g / t.

[0162] The inhibitor combination is HPG-8 + LTP-302 at a dosage of 200 g / t + 250 g / t.

[0163] The slurry was coarsely ground to a particle size of -74μm, with 60% of the particles being of this size.

[0164] The pulp concentration in the copper-lead mixed flotation stage was 45%, the temperature was 25℃, and the reaction time was 10 minutes.

[0165] The copper-lead separation stage uses a slurry concentration of 35%, a temperature of 30℃, and a reaction time of 5 minutes.

[0166] The zinc collector is 2-hydroxy-1-thiol, with a dosage of 300 g / t, and the pH is maintained naturally in the range of 6.8-7.5 throughout the process.

[0167] Component recovery rate table for Case 1:

[0168] product Copper grade (%) Lead grade (%) Zinc grade (%) Copper recovery rate (%) Lead recovery rate (%) Zinc recovery rate (%) copper concentrate 32.70 0.84 0.82 91.34 1.32 0.63 Lead concentrate 0.63 68.40 1.27 1.47 89.79 0.82 Zinc concentrate 0.32 0.70 54.25 1.99 2.45 93.08 Tailings 0.05 0.11 0.19 5.20 6.45 5.46 raw ore 0.87 1.54 3.14 100.00 100.00 100.00

[0169] .

[0170] Case 2:

[0171] The phosphoryl azo chelating agent LTP-302 was removed, and only the HPG-8 inhibitor was used at a dosage of 200 g / t. The type and dosage of the collector were the same as in Case 1.

[0172] The mixed flotation concentration was 50%, the temperature was 25℃, and the coarse grinding fineness was -74μm, accounting for 60%.

[0173] The slurry concentration during the separation stage is 45%, and the time is 5 minutes.

[0174] Flotation operation at natural pH.

[0175] Component recovery rate table for Case 2:

[0176] product Copper grade (%) Lead grade (%) Zinc grade (%) Copper recovery rate (%) Lead recovery rate (%) Zinc recovery rate (%) copper concentrate 25.62 3.26 2.42 84.58 5.90 2.22 Lead concentrate 1.81 50.22 4.17 5.01 76.29 3.21 Zinc concentrate 0.40 1.24 49.55 2.32 3.94 79.67 Tailings 0.08 0.25 0.53 8.10 13.87 14.90 raw ore 0.87 1.54 3.14 100.00 100.00 100.00

[0177] .

[0178] Case 3:

[0179] The sulfonated chitosan quaternary ammonium salt HPG-8 was removed, and only LTP-302 was used as an inhibitor at a dosage of 100 g / t.

[0180] The type and dosage of the harvesting agent are the same as in Case 1.

[0181] Mixed flotation temperature 25℃, time 10 minutes.

[0182] The coarse grinding fineness of -74μm accounts for 60%, and the regrinding fineness of -74μm accounts for 90%.

[0183] Component recovery rate table for Case 3:

[0184] product Copper grade (%) Lead grade (%) Zinc grade (%) Copper recovery rate (%) Lead recovery rate (%) Zinc recovery rate (%) copper concentrate 22.83 4.68 3.82 80.41 9.02 3.84 Lead concentrate 2.12 48.31 5.71 5.55 69.22 4.27 Zinc concentrate 0.53 1.53 46.8 2.90 4.58 73.11 Tailings 0.11 0.31 0.65 11.14 17.18 18.78 raw ore 0.87 1.54 3.14 100.00 100.00 100.00

[0185] .

[0186] Case 4:

[0187] The types and amounts of reagents used are the same as in Case 1.

[0188] Adjust parameters: increase coarse grinding fineness (-74μm) to 70%, regrinding fineness (-74μm) to 90%, reduce mixed flotation concentration to 35%, temperature 15℃, time 8 minutes;

[0189] Separate flotation concentration 30%, time 4 minutes.

[0190] Component recovery rate table for Case 4:

[0191] product Copper grade (%) Lead grade (%) Zinc grade (%) Copper recovery rate (%) Lead recovery rate (%) Zinc recovery rate (%) copper concentrate 31.91 1.18 0.94 88.62 1.81 0.71 Lead concentrate 0.76 66.53 1.36 1.81 87.52 0.88 Zinc concentrate 0.35 0.89 53.71 2.21 3.11 92.12 Tailings 0.07 0.13 0.22 7.36 7.56 6.29 raw ore 0.87 1.54 3.14 100.00 100.00 100.00

[0192] .

[0193] Case 5:

[0194] The reagent regimen is the same as in Case 1.

[0195] Adjust parameters: Mixed flotation concentration 40%, temperature 40℃, time 7 minutes; Separate flotation concentration 40%, time 6 minutes. Coarse grinding fineness -74μm accounts for 65%, regrinding fineness -74μm accounts for 95%.

[0196] Component recovery rate table for Case 5:

[0197] product Copper grade (%) Lead grade (%) Zinc grade (%) Copper recovery rate (%) Lead recovery rate (%) Zinc recovery rate (%) copper concentrate 31.22 1.08 0.85 89.26 1.77 0.67 Lead concentrate 0.64 65.88 1.44 1.45 85.11 0.89 Zinc concentrate 0.37 0.84 52.9 2.34 3.03 91.61 Tailings 0.067 0.17 0.24 6.96 10.09 6.83 raw ore 0.87 1.54 3.14 100.00 100.00 100.00

[0198] .

[0199] This process exhibits excellent stability under conditions of slurry concentration fluctuations, temperature changes, or grinding fineness adjustments.

[0200] As shown in Cases 4 and 5, when the grinding fineness is increased to -74μm accounting for 70% or the flotation concentration is adjusted, the fluctuation range of copper, lead and zinc recovery rates is always controlled within the industrial-grade threshold, and the concentrate grade only changes slightly, proving that it has significant tolerance for changes in physical parameters.

[0201] However, the inhibitor system has an insurmountable rigid constraint: when the phosphoryl chelating agent is removed or the dosage is halved, as demonstrated in Cases 2 and 3, the separation efficiency and mineral processing indicators change significantly, fully revealing the core value of the synergistic effect between sulfonated chitosan quaternary ammonium salt and phosphoryl azo chelating agent.

[0202] The specific structure of the wastewater treatment device is as described in the above embodiments. Since the flotation separation method for sulfide ore adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0203] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A wastewater treatment device, characterized in that, include: The installation platform and the pretreatment mechanism, water quality conditioning mechanism, deep purification mechanism and water quality stabilization mechanism installed on the installation platform; The pretreatment unit is used for removing impurities and degrading wastewater, the water quality conditioning unit is used for water quality regulation of wastewater after impurity removal, the deep purification unit is used for adsorption of degraded wastewater, and the water quality stabilization unit is used for storage of adsorbed wastewater. The pretreatment mechanism includes: A collection chamber is provided, wherein a partition cylinder is fixedly installed inside the collection chamber, the partition cylinder dividing the collection chamber into a homogenization chamber and a degradation chamber, a degradation plate is provided in the degradation chamber, the inner side of the degradation plate is fixed to the partition cylinder, and the outer side of the degradation plate is slidably sealed to the collection chamber; an output pipe is provided on the outer wall of the collection chamber; The isolation filter cover is installed on the inner wall of the collection chamber and is located within the homogenization chamber. A homogenizing component is installed at the bottom of the collection chamber and within the homogenizing cavity, for stirring and homogenizing wastewater within the homogenizing cavity; The injection tube has its output end installed through the top of the collection chamber and connected to the homogenization chamber area covered by the isolation filter cover. The installation platform is also equipped with a first delivery pump and a second delivery pump. The input end of the first delivery pump is installed through the bottom of the collection chamber and is connected to the homogenization chamber. The output end of the first delivery pump is installed through the input end of the water quality adjustment mechanism. The input end of the second delivery pump is installed through the output end of the water quality conditioning mechanism, the output end of the second delivery pump is installed through the bottom of the collection chamber, and the output end of the second delivery pump is connected to the degradation chamber; The input end of the output pipe is connected to the degradation chamber, and the output end of the output pipe is connected to the input end of the deep purification mechanism; the output end of the deep purification mechanism is connected to the input end of the water quality stabilization mechanism.

2. The wastewater treatment device according to claim 1, characterized in that, The degradation plates are provided in at least four sets, and the at least four sets of degradation plates are arranged in parallel within the degradation chamber.

3. The wastewater treatment device according to claim 1, characterized in that, A cover plate is fixedly installed on the top of the collection chamber, the isolation filter cover is installed at the bottom of the cover plate, and the output end of the injection tube passes through the cover plate and communicates with the homogenization chamber.

4. The wastewater treatment device according to claim 3, characterized in that, The homogenizing component includes a drive unit, a synchronous shaft, and a homogenizing rod. The fixed part of the drive unit is fixed to the bottom of the collection chamber. The bottom of the synchronous shaft passes through the collection chamber and is fixed to the drive part of the drive unit. The homogenizing rod is fixed to the top of the synchronous shaft.

5. The wastewater treatment device according to claim 4, characterized in that, The top of the isolation filter cover is rotatably mounted on the bottom of the cover plate; the wastewater treatment device also includes a scraper, the top of which is fixed to the bottom of the cover plate, and the scraper is movably connected to the inner wall of the isolation filter cover. The top of the synchronous shaft is connected to the bottom of the isolation filter cover via a keyway.

6. The wastewater treatment device according to claim 5, characterized in that, The scraper is provided in two parts, which are arranged around the inner side of the isolation filter cover.

7. A wastewater treatment device according to claim 6, characterized in that, The wastewater treatment device further includes a slag discharge assembly, which includes a fixed cover, a spiral conveying rod, and a slag discharge pipe. The fixed cover is fixedly inserted through the cover plate, and the bottom of the fixed cover is rotatably and sealingly connected to the isolation filter cover. A filter cover is integrated on the fixed cover and inserted into the collection range of the isolation filter cover. A through hole is opened at the bottom of the filter cover. The spiral conveying rod is rotatably installed within the range of the fixed cover, and the top of the spiral conveying rod is rotatably installed on the fixed cover. The input end of the slag discharge pipe is fixedly connected to the output end of the fixed cover. The spiral conveyor rod rotates and drives the slag material entering the fixed cover area to be conveyed upward.

8. A wastewater treatment device according to claim 7, characterized in that, An independent motor is installed at the top of the spiral conveyor.

9. A wastewater treatment device according to claim 7, characterized in that, The bottom of the spiral conveyor rod is fixed to the isolation filter cover, and the spiral conveyor rod rotates synchronously when the isolation filter cover rotates.

10. A flotation separation method for sulfide ores, characterized in that, Includes the following steps: Step S1, raw ore pretreatment: After the raw ore is initially ground, copper collector and lead collector are added, and a flotation is performed to obtain a mixed slurry; Step S2, slurry separation: copper collector and composite inhibitor are added to the mixed slurry for secondary flotation to obtain copper slurry and lead slurry; Step S3: Further extraction of copper concentrate is carried out by adding a composite inhibitor to the copper slurry and performing at least three flotation separations to obtain copper concentrate. Step S4: The lead concentrate is further extracted and separated by at least two flotation processes to obtain the lead concentrate. Step S5, wastewater recycling: The wastewater generated during the flotation process is injected into the wastewater treatment device described in any one of claims 1 to 9 for centralized collection, realizing multi-stage treatment of wastewater pretreatment, water quality adjustment, deep purification and water quality stabilization, for the resource recycling and utilization of wastewater.

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