Etching wastewater treatment equipment and treatment method

Abstract

The present invention is applicable to the technical field of etching wastewater treatment, and provides an etching wastewater treatment device and treatment method, including a mixing component, a preliminary treatment component, a discharge seat, an electrolytic cell, a second delivery pump and an incubator: the top of the preliminary treatment component is provided with a water inlet component, the top of the discharge seat is movably connected with a filter frame component, and the inner wall of the filter frame component is provided with a filter ball component; through the setting of the mixing component, in use, quicklime powder is poured into the stirring tank, and a certain amount of clean water is added, and the stirring motor is turned on to drive several stirring plates through the stirring rod to stir evenly into lime water slurry, and the bent discharge pipe is opened to discharge it into the slurry storage tank, and then the feed port of the slurry storage tank is closed for standby use; impurities in the quicklime will not dissolve after adding water, wherein the setting of the filter mesh can retain the impurities in the filter mesh through the stirring plates and the filter mesh during stirring, and after the stirring is completed, the lime water slurry is completely discharged into the slurry storage tank.

Description

Technical Field

[0001] The invention belongs to the technical field of etching wastewater treatment, and in particular relates to etching wastewater treatment equipment and a treatment method. Background Art

[0002] Etching is a technique that uses chemical reactions or physical impact to remove part of a material. Etching technology can be divided into two categories: wet etching and dry etching.

[0003] The etching wastewater treatment equipment and treatment method described in the patent application with reference publication number CN116986777A relate to the field of wastewater treatment technology, including a treatment chamber, a partition, a reaction chamber, a static chamber, an overflow port, an installation chamber, a water outlet pipe, a grinding chamber, a rotating shaft, an arc-shaped blade, a fixed grinding disc, and a movable grinding disc; a driving mechanism for driving the movable grinding disc to intermittently move back and forth toward the fixed grinding disc when the rotating shaft rotates. When the rotating shaft rotates, the driving mechanism drives the movable grinding disc to move back and forth toward the fixed grinding disc, and at the same time, the rotation of the rotating shaft drives the movable grinding disc to rotate, so that the movable grinding disc and the fixed grinding disc rotate relative to each other, and then grind the lime milk entering between the movable grinding disc and the fixed grinding disc, reducing the particle size of the lime milk and increasing the solubility of the lime milk. In this way, when the lime milk enters the reaction chamber, the diffusion degree of the lime milk in the etching wastewater in the reaction chamber is expanded, and the reaction efficiency of the lime milk and the hydrofluoric acid in the etching wastewater is improved;

[0004] Commonly used chemicals in the etching process include strong acids such as sulfuric acid, hydrochloric acid, hydrofluoric acid, and nitric acid, and may also contain heavy metals such as copper, nickel, chromium, and chelating agents such as EDTA; if these substances are discharged directly, they will cause serious pollution to the environment, so the treatment equipment and methods must effectively remove these harmful components; however, current treatment equipment is generally only preliminary treatment (such as the above-mentioned comparative technical means), and cannot guarantee that the treated water meets the exclusion standards or has little impact on the ecological environment after discharge. In order to solve the above problems, an etching wastewater treatment device and treatment method are now provided. Summary of the Invention

[0005] The present invention provides an etching wastewater treatment device and a treatment method, which are intended to solve the problem that the chemical substances commonly used in the existing etching process include strong acids such as sulfuric acid, hydrochloric acid, hydrofluoric acid, and nitric acid, and may also contain heavy metals such as copper, nickel, chromium, etc., and chelating agents such as EDTA; if these substances are directly discharged, they will cause serious pollution to the environment, so the treatment equipment and method must effectively remove these harmful components; however, the current treatment equipment is generally only for preliminary treatment, and cannot guarantee that the treated water meets the exclusion standard or has little impact on the ecological environment after discharge.

[0006] The present invention is achieved as follows: an etching wastewater treatment device includes a mixing component, a preliminary treatment component, a discharge seat, an electrolytic cell, a second delivery pump and an incubator: a water inlet component is provided on the top of the preliminary treatment component, a filter frame component is movably connected to the top of the discharge seat, and a filter ball component is provided on the inner wall of the filter frame component;

[0007] Among them, the mixing component includes a stirring tank and a slurry storage tank, a stirring mechanism is provided on the top of the stirring tank, the outer wall of the stirring mechanism is fixedly connected to a filter mesh, the inner wall of the stirring tank is fixedly connected to a curved discharge pipe, and a small control valve is provided at the upper corner of the curved discharge pipe, and the output end of the slurry storage tank is provided with a first output pump, and the output end of the slurry storage tank is connected to an upward spraying pipe through the first output pump, and the outer wall of the upward spraying pipe is provided with several injection holes at equal intervals, and several injection holes are opened at an upward inclination of 45 degrees.

[0008] Preferably, the top of the stirring tank is fixedly connected to a motor frame, the stirring mechanism includes a stirring motor fixedly arranged on the inner wall of the motor frame, the output shaft of the stirring motor is fixedly connected to a stirring rod through a coupling, and the outer wall of the stirring rod is fixedly connected to a plurality of stirring blades;

[0009] wherein, the stirring blade is hollowed out, and the outer wall of the stirring blade and the filter screen are fixedly connected by small screws; through the setting of the mixing component, in use, quicklime powder is poured into the stirring tank, and a certain amount of clean water is added, and the stirring motor is turned on to drive several stirring blades to stir evenly into lime water slurry through the stirring rod, and the bent discharge pipe is opened to discharge it into the slurry storage tank, and then the feed port of the slurry storage tank is closed for standby use; impurities in the quicklime will not dissolve after adding water, wherein, the setting of the filter screen can retain the impurities in the filter screen through the stirring blade and the filter screen during stirring. After the stirring is completed, after the lime water slurry is completely discharged into the slurry storage tank, the small screw is rotated to remove the filter screen for cleaning, so as to avoid the physical and chemical reaction of a large amount of heat generated by the freshly prepared lime water slurry on the internal substances of the wastewater during use, thereby causing atmospheric pollution and even damage to the equipment. At the same time, the coordinated setting of the stirring blade and the filter screen achieves impurity removal and filtering effect during stirring, realizes a certain mechanism merger and reduction, and thus improves work efficiency.

[0010] Preferably, the water inlet assembly includes a water inlet hopper, the output end of the water inlet hopper is connected to a discharge pipe, the middle part of the discharge pipe is connected to a first ball valve, the middle part of the discharge pipe is connected to a diversion pipe through the first ball valve, the output end of the diversion pipe is connected to a water quality analyzer, the water quality analyzer is a multi-parameter pH water quality analyzer, the discharge end of the discharge pipe is connected to a uniform discharge pipe, and the outer wall of the uniform discharge pipe is equidistantly provided with a plurality of spray holes, and the plurality of spray holes are opened at a downward angle of 45 degrees, and the spray holes on the uniform discharge pipe are arranged corresponding to the spray holes on the upward spray pipe; through the setting of the water inlet assembly, in use, first, the etching wastewater to be treated is discharged into the middle discharge pipe through the water inlet hopper, the first ball valve is opened to discharge a little wastewater into the diversion pipe and the water quality analyzer for pH detection, and the first output pump is used to control the discharge speed of the lime water slurry from the upward spray pipe according to the detection data, so as to reasonably use the lime water slurry and avoid waste caused by excessive discharge of the lime water slurry.

[0011] Preferably, the preliminary treatment assembly includes a treatment box, two partition lifting hydraulic cylinders are symmetrically provided on the top of the treatment box, the bottoms of the partition lifting hydraulic cylinders are fixedly connected to partitions, the top of the treatment box is fixedly connected to a splash shield plate, and the top of the treatment box is fixedly connected to two upper support plates;

[0012] The inner wall of the upper support plate is closely connected to the outer wall of the uniform discharge pipe.

[0013] Preferably, the treatment box comprises a box body, the inner wall of the box body is obliquely provided with a grille, and the inner wall of the box body is movably connected to a water receiving plate mechanism;

[0014] The water receiving plate mechanism includes a rotating shaft movably arranged on the inner wall of the box, the outer wall of the rotating shaft is movably connected to the water receiving plate, 4014-b is opened on the inner wall of one side of the water receiving plate, and 4014-c is fixedly connected to the bottom of the side of the water receiving plate away from 4014-b; through the setting of the preliminary treatment component, during use, the wastewater treated with the lime water slurry not only changes in pH, but also undergoes flocculation and precipitation. When the wastewater is sprayed through the spray hole on the uniform discharge pipe and intersects with the lime water slurry sprayed from the spray hole in the upward spray pipe, it falls into the box and undergoes flocculation and precipitation in the box. The partition is opened by controlling the partition lifting hydraulic cylinder to be lifted and discharged into the grille, and can be filtered through the grille. By closing the partition, the side containing the partition is formed into a closed state, and PAM flocculant is added to continue the coagulation and precipitation treatment;

[0015] Two ear plates are fixedly connected to one side of the box body, and the inner walls of the ear plates are fitted and connected to the outer wall of the pulp storage tank.

[0016] Preferably, the filter frame assembly comprises a filter frame, a spherical groove is formed on the bottom inner wall of the filter frame, and a spherical cover is fixedly connected to the top of the filter frame;

[0017] Side sliding blocks are fixedly connected to both sides of the filter frame, and a side lifting hydraulic cylinder is fixedly connected to the bottom of the side sliding blocks.

[0018] Preferably, the filter ball assembly includes a side fixing plate fixedly arranged on the outer wall of the filter frame, the bottom of the side fixing plate is fixedly connected to a lifting hydraulic cylinder, one end of the lifting hydraulic cylinder is fixedly connected to a clamp, one end of the lifting hydraulic cylinder is fixedly connected to a rotating shaft through a clamp, one end of the rotating shaft is fixedly connected to a spherical filter cover, and the spherical filter cover is arranged on the inner wall of the spherical groove and is closely connected to the inner wall of the spherical groove;

[0019] The spherical filter cover is composed of two hemispherical hollow cover bodies, and the outer wall of the spherical filter cover is provided with mesh holes. The inner wall of the spherical filter cover is wrapped with activated carbon. The rotating shaft is composed of two semi-cylindrical shaft bodies. Through the setting of the filter ball assembly and the use in conjunction with the filter frame assembly, when in use, when the wastewater treated by coagulation and precipitation of PAM flocculant in the box is discharged into the spherical cover through the large discharge pipe, it falls into the spherical filter cover through the spherical cover and the spherical groove, and is filtered through the mesh holes and activated carbon on the spherical filter cover and falls down into the electrolytic cell for the next step of treatment.

[0020] Preferably, both the input end and the output end of the second delivery pump are connected to a hose, and the input end and the output end of the second delivery pump are connected to the incubator via the hose and the electrolytic cell respectively.

[0021] Preferably, a heat preservation cover is provided on the top of the incubator, the heat preservation cover is a hemispherical heat preservation cover, the inner wall is provided with an electric heating resistance wire and a controller, the inner wall of the incubator is provided with a temperature monitoring probe, and the electric heating resistance wire and the controller are electrically connected, and the controller and the temperature monitoring probe are connected via wireless signal transmission;

[0022] The bottom of the preliminary treatment component is fixedly connected to the main support base, and the bottom of the discharge seat is fixedly connected to the secondary support base; through the setting of the electrolytic cell, the sewage discharged from the spherical filter cover can be further electrolytically treated to reduce the number of ions in the sewage, and a small part of the treated wastewater is input into the incubator by the second delivery pump, and common microbial species are added to the incubator. The temperature of the wastewater in the incubator is then maintained by adjusting the insulation cover through the controller, and the survival and reproduction of the microbial species in the wastewater are observed and detected, so as to judge the acid-base environment after treatment and whether the wastewater contains toxic substances, and then judge the quality of the treated water.

[0023] A method for treating etching wastewater comprises the following steps: S1, first, discharging the etching wastewater to be treated into a water quality analyzer through an inlet hopper and a discharge pipe to detect pH;

[0024] S2, preparing lime water slurry by using the mixing component;

[0025] S3, the etching wastewater to be treated is discharged into the treatment box through the water inlet assembly, and the lime slurry discharge speed of the upward spray pipe is controlled by the first output pump according to the detection data, and the lime slurry is used reasonably;

[0026] S4, add PAM flocculant and continue coagulation and sedimentation treatment;

[0027] S5, filtering the wastewater through a filter ball assembly and then electrolyzing it in an electrolytic cell;

[0028] S6. Finally, the incubator and the heat preservation cover are used together. Some wastewater is introduced into the incubator and common microbial species are added. The temperature is controlled. The survival and reproduction of the microbial species in the wastewater are observed and tested to determine the effectiveness of the multi-stage wastewater treatment.

[0029] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0030] Through the setting of the mixing component, during use, quicklime powder is poured into the mixing tank, and a certain amount of clean water is added, and the stirring motor is turned on to drive several stirring blades through the stirring rod to stir evenly into lime water slurry, and the bent discharge pipe is opened to discharge it into the slurry storage tank, and then the feed port of the slurry storage tank is closed for standby use; the impurities in the quicklime will not dissolve after adding water, wherein, the setting of the filter mesh can retain the impurities in the filter mesh through the stirring blades and the filter mesh during stirring. After the stirring is completed, after the lime water slurry is completely discharged into the slurry storage tank, the small screw is rotated to remove the filter mesh for cleaning, so as to avoid the large amount of heat generated by the freshly prepared lime water slurry during use to cause physical and chemical reactions with the internal substances of the wastewater, thereby causing atmospheric pollution and even damage to the equipment. At the same time, the coordinated setting of the stirring blade and the filter mesh can achieve impurity removal and filtering effects during stirring, realize a certain mechanism merger and reduction, and thus improve work efficiency;

[0031] Through the setting of the water inlet component, in use, first, the etching wastewater to be treated is discharged into the discharge pipe through the water inlet hopper, and the first ball valve is opened to discharge a little wastewater into the diversion pipe and the water quality analyzer for pH detection. The discharge speed of the lime slurry from the upward spraying pipe is controlled by the first output pump according to the detection data, so as to reasonably use the lime slurry and avoid waste caused by excessive discharge of the lime slurry.

[0032] Through the setting of the preliminary treatment component, in use, the wastewater treated with the lime water slurry not only changes in pH, but also undergoes flocculation and precipitation. When the wastewater is ejected through the ejection hole on the uniform discharge pipe and intersects with the lime water slurry ejected from the ejection hole in the upward spraying pipe, it falls into the box and undergoes flocculation and precipitation in the box. By controlling the partition lifting hydraulic cylinder to lift and open the partition, the wastewater is discharged into the grille and filtered through the grille. The partition is closed to form a closed state on the side containing the partition, and PAM flocculant is added to continue the coagulation and precipitation treatment.

[0033] Through the setting of the filter ball assembly and the use in conjunction with the filter frame assembly, when in use, when the wastewater treated by the coagulation and sedimentation of the PAM flocculant in the box is discharged into the spherical cover through the large discharge pipe, it falls into the spherical filter cover through the spherical cover and the spherical groove, and then falls down into the electrolytic cell through the mesh holes and activated carbon filtration on the spherical filter cover for the next step of treatment;

[0034] By setting up the electrolytic cell, the sewage discharged from the spherical filter cover can be further electrolytically treated to reduce the number of ions in the sewage. A small portion of the treated wastewater is input into the incubator by the second delivery pump, and common microbial species are added to the incubator. The controller then controls the insulation cover to maintain the temperature of the wastewater in the incubator, observes and detects the survival and reproduction of microbial species in the wastewater, and thus determines the acid-base environment after treatment and whether the wastewater contains toxic substances, and further determines the quality of the treated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a front view of an etching wastewater treatment device of the present invention;

[0036] Figure 2 It is a structural diagram of a deployment component of an etching wastewater treatment equipment of the present invention;

[0037] Figure 3 This is a structural schematic diagram of a stirring mechanism of an etching wastewater treatment device according to the present invention;

[0038] Figure 4 This is a structural schematic diagram of a water inlet assembly of an etching wastewater treatment device according to the present invention;

[0039] Figure 5 It is a structural schematic diagram of a preliminary treatment component of an etching wastewater treatment equipment of the present invention;

[0040] Figure 6 It is a structural schematic diagram of a treatment box of an etching wastewater treatment equipment of the present invention;

[0041] Figure 7 This is a structural diagram of a water receiving plate mechanism of an etching wastewater treatment device according to the present invention;

[0042] Figure 8 It is a structural schematic diagram of a filter frame assembly of an etching wastewater treatment equipment of the present invention;

[0043] Figure 9 It is a structural schematic diagram of a filter ball assembly of an etching wastewater treatment equipment of the present invention.

[0044] In the figure: 1. Main support base; 2. Mixing assembly; 201. Mixing tank; 202. Mixing mechanism; 2021. Mixing motor; 2022. Mixing rod; 2023. Mixing blade; 203. Filter screen; 204. Bend discharge pipe; 205. Slurry storage tank; 206. First output pump; 207. Upward spray pipe; 3. Water inlet assembly; 301. Water quality analyzer; 302. Uniform discharge pipe; 303. First ball valve; 304. Diverter pipe; 305. Water inlet hopper; 4. Preliminary treatment assembly; 401. Treatment box; 4011. Box body; 4012. Grille; 4013. Ear plate; 4014, water receiving plate mechanism; 4014-a, water receiving plate; 4014-b, water receiving trough; 4014-c, counterweight; 4014-d, rotating shaft; 402, partition; 403, partition lifting hydraulic cylinder; 404, splash shield plate; 405, upper support plate; 5, filter rack assembly; 501, filter rack; 502, spherical trough; 503, spherical cover; 6, filter ball assembly; 601, spherical filter cover; 602, side fixing plate; 603, lifting hydraulic cylinder; 7, discharge seat; 8, electrolytic cell; 9, second delivery pump; 10, incubator; 11, thermal insulation cover; 12, auxiliary support base. DETAILED DESCRIPTION

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0046] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] An embodiment of the present invention provides an etching wastewater treatment device, comprising a mixing assembly 2, a preliminary treatment assembly 4, a discharge seat 7, an electrolytic cell 8, a second delivery pump 9, and an incubator 10. A water inlet assembly 3 is provided on the top of the preliminary treatment assembly 4, a filter frame assembly 5 is movably connected to the top of the discharge seat 7, and a filter ball assembly 6 is provided on the inner wall of the filter frame assembly 5.

[0048] Among them, the deployment component 2 includes a stirring tank 201 and a slurry storage tank 205, a stirring mechanism 202 is provided on the top of the stirring tank 201, a filter mesh 203 is fixedly connected to the outer wall of the stirring mechanism 202, a curved discharge pipe 204 is fixedly connected to the inner wall of the stirring tank 201, a small control valve is provided at the upper corner of the curved discharge pipe 204, and a first output pump 206 is provided at the output end of the slurry storage tank 205. The output end of the slurry storage tank 205 is connected to an upward spraying pipe 207 through the first output pump 206, and a plurality of spray holes are equidistantly provided on the outer wall of the upward spraying pipe 207, and the plurality of spray holes are opened at an upward inclination of 45 degrees;

[0049] The top of the stirring tank 201 is fixedly connected to a motor frame. The stirring mechanism 202 includes a stirring motor 2021 fixedly arranged on the inner wall of the motor frame. The output shaft of the stirring motor 2021 is fixedly connected to a stirring rod 2022 through a coupling. The outer wall of the stirring rod 2022 is fixedly connected to a plurality of stirring blades 2023.

[0050] The stirring blade 2023 is hollowed out, and the outer wall of the stirring blade 2023 and the filter mesh 203 are fixedly connected by small screws;

[0051] The water inlet assembly 3 includes a water inlet hopper 305. The output end of the water inlet hopper 305 is connected to a discharge pipe. The middle portion of the discharge pipe is connected to a first ball valve 303. The middle portion of the discharge pipe is connected to a diverter pipe 304 through the first ball valve 303. The output end of the diverter pipe is connected to a water quality analyzer 301, which is a multi-parameter pH water quality analyzer. The discharge end of the discharge pipe is connected to a uniform discharge pipe 302. The outer wall of the uniform discharge pipe 302 is provided with a plurality of spray holes equidistantly spaced and inclined downward at 45 degrees. The spray holes on the uniform discharge pipe 302 are arranged corresponding to the spray holes on the upward spray pipe 207.

[0052] The preliminary treatment assembly 4 includes a treatment box 401. Two partition lifting hydraulic cylinders 403 are symmetrically arranged on the top of the treatment box 401. The bottom of the partition lifting hydraulic cylinder 403 is fixedly connected to the partition 402. The top of the treatment box 401 is fixedly connected to a splash shield plate 404. The top of the treatment box 401 is fixedly connected to two upper support plates 405.

[0053] The inner wall of the upper support plate 405 is closely connected to the outer wall of the uniform discharge pipe 302;

[0054] Two ear plates 4013 are fixedly connected to one side of the box body 4011 , and the inner walls of the ear plates 4013 are closely connected to the outer wall of the pulp storage tank 205 .

[0055] It should be noted that the chemicals commonly used in existing etching processes include strong acids such as sulfuric acid, hydrochloric acid, hydrofluoric acid, and nitric acid, and may also contain heavy metals such as copper, nickel, chromium, and chelating agents such as EDTA; if these substances are directly discharged, they will cause serious pollution to the environment, so the treatment equipment and methods must effectively remove these harmful components; however, current treatment equipment is generally only for preliminary treatment, and cannot guarantee that the treated water meets the exclusion standards or has less impact on the ecological environment after discharge.

[0056] Specifically, in this embodiment, this solution mainly uses the coordination of the deployment component 2, the preliminary treatment component 4, the discharge seat 7, the electrolytic cell 8, the second delivery pump 9, the incubator 10, the water inlet component 3, the filter rack component 5 and the filter ball component 6: First, the etching wastewater to be treated is discharged into the discharge pipe through the water inlet hopper 305, and the first ball valve 303 is opened to discharge a little wastewater into the diversion pipe 304 and the water quality analyzer 301 for pH detection. The discharge speed of the lime water slurry from the upward spraying pipe 207 is controlled by the first output pump 206 according to the detection data, so as to reasonably use the lime water slurry and avoid waste caused by excessive discharge of the lime water slurry;

[0057] Next, quicklime powder is poured into the stirring tank 201, and a certain amount of clean water is added, and the stirring motor 2021 is turned on to drive several stirring blades 2023 to stir evenly into lime water slurry through the stirring rod 2022, and the bent discharge pipe 204 is opened to discharge the lime into the slurry storage tank 205, and then the feed port of the slurry storage tank 205 is closed for standby use; impurities in the quicklime will not dissolve after adding water, wherein, the setting of the filter mesh 203 can allow the impurities to pass through the stirring blades 2023 and the filter mesh 203 during stirring and remain in the filter mesh 203. After the stirring is completed, after the lime water slurry is completely discharged into the slurry storage tank 205, the small screw is rotated to remove the filter mesh 203 for cleaning;

[0058] Then, when the wastewater is ejected through the ejection holes on the uniform discharge pipe 302 and intersects with the lime slurry ejected from the ejection holes in the upward spraying pipe 207, it falls into the box 4011 and undergoes flocculation and sedimentation in the box 4011. The partition 402 is opened by controlling the partition lifting hydraulic cylinder 403 to be raised, and the wastewater is discharged into the grid 4012. After passing through the grid 4012, the wastewater can be filtered. By closing the partition 402, the side containing the partition 402 is closed, and PAM flocculant is added to continue the coagulation and sedimentation treatment.

[0059] Finally, when the wastewater treated with PAM flocculant coagulation and sedimentation in the box 4011 is discharged into the spherical cover 503 through the large discharge pipe, it falls into the spherical filter cover 601 through the spherical cover 503 and the spherical groove 502, and then falls into the electrolytic cell 8 through the mesh and activated carbon on the spherical filter cover 601 for electrolytic treatment, and then proceeds to the next inspection operation;

[0060] In addition, a small portion of the treated wastewater is input into the incubator 10 by the second delivery pump 9, and common microbial species are added to the incubator 10. The controller then regulates the heat preservation cover 11 to maintain the temperature of the wastewater in the incubator 10, and observes and detects the survival and reproduction of the microbial species in the wastewater, so as to judge the acid-base environment after treatment and whether the wastewater contains toxic substances, and then judge the quality of the treated water.

[0061] In this embodiment, through the setting of the mixing component 2, in use, quicklime powder is poured into the stirring tank 201, and a certain amount of clean water is added, and the stirring motor 2021 is turned on to drive several stirring blades 2023 to stir evenly into lime water slurry through the stirring rod 2022, and the bent discharge pipe 204 is opened to discharge it into the slurry storage tank 205, and then the feed port of the slurry storage tank 205 is closed and used for standby; impurities in the quicklime will not dissolve after adding water, wherein the setting of the filter mesh 203 can pass the impurities through the stirring blades 2023 during stirring The lime slurry is retained in the filter screen 203. After the stirring is completed, after the lime water slurry is completely discharged into the slurry storage tank 205, the filter screen 203 is removed by rotating the small screw for cleaning, so as to avoid the lime water slurry produced by the freshly prepared lime water slurry during use to produce a large amount of heat to cause physical and chemical reactions on the internal substances of the wastewater, thereby causing air pollution and even damage to the equipment. At the same time, the coordination of the stirring piece 2023 and the filter screen 203 can achieve the impurity removal and filtering effect during stirring, realize a certain mechanism merger and reduction, and thus improve work efficiency.

[0062] In this embodiment, through the setting of the water inlet component 3, during use, first, the etching wastewater to be treated is discharged into the middle discharge pipe through the water inlet hopper 305, and the first ball valve 303 is opened to discharge a little wastewater into the diversion pipe 304 and the water quality analyzer 301 for pH detection, and the first output pump 206 is used to control the discharge speed of the lime water slurry from the upward spraying pipe 207 according to the detection data, so as to reasonably use the lime water slurry and avoid excessive discharge of the lime water slurry to cause waste.

[0063] In a further preferred embodiment of the present invention, the processing box 401 includes a box body 4011, the inner wall of the box body 4011 is obliquely provided with a grille 4012, and the inner wall of the box body 4011 is movably connected to a water receiving plate mechanism 4014;

[0064] The water receiving plate mechanism 4014 includes a rotating shaft 4014-d movably arranged on the inner wall of the box body 4011, and the outer wall of the rotating shaft 4014-d is movably connected to the water receiving plate 4014-a, and a water receiving trough 4014-b is provided on the inner wall of one side of the water receiving plate 4014-a, and a counterweight block 4014-c is fixedly connected to the bottom of the side of the water receiving plate 4014-a away from the water receiving trough 4014-b.

[0065] In this embodiment, through the setting of the preliminary treatment component 4, during use, the wastewater treated with the lime water slurry not only changes in pH, but also undergoes flocculation and precipitation. When the wastewater is ejected through the ejection hole on the uniform discharge pipe 302 and intersects with the lime water slurry ejected from the ejection hole in the upward spraying pipe 207, it falls into the box 4011 and undergoes flocculation and precipitation in the box 4011. By controlling the partition lifting hydraulic cylinder 403 to lift and open the partition 402, the wastewater is discharged into the grille 4012 and can be filtered through the grille 4012. By closing the partition 402, the side containing the partition 402 is formed into a closed state, and PAM flocculant is added to continue the coagulation and precipitation treatment.

[0066] In a further preferred embodiment of the present invention, the filter frame assembly 5 includes a filter frame 501, a spherical groove 502 is formed on the bottom inner wall of the filter frame 501, and a spherical cover 503 is fixedly connected to the top of the filter frame 501;

[0067] Side sliders are fixedly connected to both sides of the filter frame 501, and the bottom of the side sliders is fixedly connected to a side lifting hydraulic cylinder;

[0068] The filter ball assembly 6 includes a side fixing plate 602 fixedly arranged on the outer wall of the filter frame 501, a lifting hydraulic cylinder 603 is fixedly connected to the bottom of the side fixing plate 602, one end of the lifting hydraulic cylinder 603 is fixedly connected to a clamp, one end of the lifting hydraulic cylinder 603 is fixedly connected to a rotating shaft through a clamp, one end of the rotating shaft is fixedly connected to a spherical filter cover 601, and the spherical filter cover 601 is arranged on the inner wall of the spherical groove 502 and is closely connected to the inner wall of the spherical groove 502;

[0069] The spherical filter cover 601 is composed of two hemispherical hollow covers, and the outer wall of the spherical filter cover 601 is provided with mesh holes. The inner wall of the spherical filter cover 601 is coated with activated carbon, and the rotating shaft is composed of two semi-cylindrical shafts.

[0070] The input and output ends of the second delivery pump 9 are both connected to hoses, and the input and output ends of the second delivery pump 9 are connected to the incubator 10 through the hoses and the electrolytic cell 8 respectively;

[0071] The top of the incubator 10 is provided with a heat preservation cover 11, which is a hemispherical heat preservation cover. The inner wall of the incubator 10 is provided with an electric heating resistance wire and a controller. The inner wall of the incubator 10 is provided with a temperature monitoring probe, and the electric heating resistance wire and the controller are electrically connected. The controller and the temperature monitoring probe are connected via wireless signal transmission;

[0072] The bottom of the preliminary processing assembly 4 is fixedly connected to the main support base 1 , and the bottom of the discharge seat 7 is fixedly connected to the auxiliary support base 12 .

[0073] In this embodiment, the filter ball assembly 6 is provided and used in conjunction with the filter frame assembly 5. During use, when the wastewater treated by the coagulation and sedimentation of the PAM flocculant in the box 4011 is discharged into the spherical cover 503 through the large discharge pipe, it falls into the spherical filter cover 601 through the spherical cover 503 and the spherical groove 502, and then falls into the spherical filter cover 601 through the mesh and activated carbon on the spherical filter cover 601 and falls into the electrolytic cell 8 for the next step of treatment.

[0074] In this embodiment, through the provision of the electrolytic cell 8, the sewage discharged from the spherical filter cover 601 can be further electrolytically treated to reduce the number of ions in the sewage, and a small portion of the treated wastewater is input into the incubator 10 by the second delivery pump 9, and common microbial species are added to the incubator 10. The controller then regulates the heat preservation cover 11 to maintain the temperature of the wastewater in the incubator 10, and the survival and reproduction of the microbial species in the wastewater are observed and detected, so as to judge the acid-base environment after treatment and whether the wastewater contains toxic substances, and then judge the quality of the treated water.

[0075] A method for treating etching wastewater comprises the following steps: S1, first, the etching wastewater to be treated is discharged into a water quality analyzer 301 through a water inlet hopper 305 and a discharge pipe to detect pH;

[0076] S2, prepare lime water slurry by preparing component 2;

[0077] S3, the etching wastewater to be treated is discharged into the treatment box 401 through the water inlet component 3, and the lime slurry discharge speed of the upward spray pipe 207 is controlled by the first output pump 206 according to the detection data, and the lime slurry is used reasonably;

[0078] S4, add PAM flocculant and continue coagulation and sedimentation treatment;

[0079] S5, filtering the wastewater through the filter ball assembly 6, and then electrolyzing it in the electrolytic cell 8;

[0080] S6. Finally, the incubator 10 and the heat preservation cover 11 are used together. Some wastewater is introduced into the incubator 10 and common microbial species are added. The temperature is controlled. The survival and reproduction of the microbial species in the wastewater are observed and tested to determine the effect of the multi-stage wastewater treatment.

[0081] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0082] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0083] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0084] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. An etching wastewater treatment equipment, characterized in that, The invention comprises a mixing component (2), a preliminary treatment component (4), a discharge seat (7), an electrolytic cell (8), a second delivery pump (9) and an incubator (10): a water inlet component (3) is provided on the top of the preliminary treatment component (4), a filter frame component (5) is movably connected to the top of the discharge seat (7), and a filter ball component (6) is provided on the inner wall of the filter frame component (5); The mixing assembly (2) comprises a stirring tank (201) and a pulp storage tank (205); a stirring mechanism (202) is provided on the top of the stirring tank (201); a filter screen (203) is fixedly connected to the outer wall of the stirring mechanism (202); a curved discharge pipe (204) is fixedly connected to the inner wall of the stirring tank (201); a small control valve is provided at the upper corner of the curved discharge pipe (204); a first output pump (206) is provided at the output end of the pulp storage tank (205); the output end of the pulp storage tank (205) is connected to an upward spraying pipe (207) via the first output pump (206); a plurality of spray holes are equidistantly provided on the outer wall of the upward spraying pipe (207); and the plurality of spray holes are provided at an upward inclination of 45 degrees. The preliminary treatment assembly (4) comprises a treatment box (401), two partition lifting hydraulic cylinders (403) are symmetrically arranged on the top of the treatment box (401), a partition (402) is fixedly connected to the bottom of the partition lifting hydraulic cylinder (403), a splash shield plate (404) is fixedly connected to the top of the treatment box (401), and two upper support plates (405) are fixedly connected to the top of the treatment box (401); The inner wall of the upper support plate (405) is fitted and connected to the outer wall of the uniform discharge pipe (302); The treatment box (401) comprises a box body (4011), the inner wall of the box body (4011) is provided with a grille (4012) in an inclined manner, and the inner wall of the box body (4011) is movably connected to a water receiving plate mechanism (4014).

2. The etching wastewater treatment equipment according to claim 1, characterized in that: The top of the stirring tank (201) is fixedly connected to a motor frame, the stirring mechanism (202) comprises a stirring motor (2021) fixedly arranged on the inner wall of the motor frame, the output shaft of the stirring motor (2021) is fixedly connected to a stirring rod (2022) via a coupling, and the outer wall of the stirring rod (2022) is fixedly connected to a plurality of stirring blades (223); The stirring blade (2023) is hollowed out, and the outer wall of the stirring blade (2023) and the filter mesh (203) are fixedly connected by small screws.

3. The etching wastewater treatment equipment according to claim 1, characterized in that: The water inlet assembly (3) comprises a water inlet hopper (305), the output end of the water inlet hopper (305) is connected to a discharge pipe, the middle portion of the discharge pipe is connected to a first ball valve (303), the middle portion of the discharge pipe is connected to a diversion pipe (304) via the first ball valve (303), the output end of the diversion pipe is connected to a water quality analyzer (301), the water quality analyzer (301) is a multi-parameter pH water quality analyzer, the discharge end of the discharge pipe is connected to a uniform discharge pipe (302), and the outer wall of the uniform discharge pipe (302) is provided with a plurality of spray holes at equal intervals, and the plurality of spray holes are provided downwardly inclined at 45 degrees, and the spray holes on the uniform discharge pipe (302) are arranged correspondingly to the spray holes on the upward spray pipe (207).

4. The etching wastewater treatment equipment according to claim 1, characterized in that: The water receiving plate mechanism (4014) comprises a rotating shaft (4014-d) movably arranged on the inner wall of the box body (4011); the outer wall of the rotating shaft (4014-d) is movably connected to the water receiving plate (4014-a); a water receiving groove (4014-b) is provided on the inner wall of one side of the water receiving plate (4014-a); and a counterweight (4014-c) is fixedly connected to the bottom of the side of the water receiving plate (4014-a) away from the water receiving groove (4014-b); Two ear plates (4013) are fixedly connected to one side of the box body (4011), and the inner walls of the ear plates (4013) are fitted and connected to the outer wall of the pulp storage tank (205).

5. The etching wastewater treatment equipment according to claim 1, characterized in that: The filter frame assembly (5) comprises a filter frame (501), a spherical groove (502) is provided on the bottom inner wall of the filter frame (501), and a spherical cover (503) is fixedly connected to the top of the filter frame (501); Side sliding blocks are fixedly connected to both sides of the filter frame (501), and the bottom of the side sliding blocks is fixedly connected to a side lifting hydraulic cylinder.

6. The etching wastewater treatment equipment according to claim 5, characterized in that: The filter ball assembly (6) comprises a side fixing plate (602) fixedly arranged on the outer wall of the filter frame (501); a lifting hydraulic cylinder (603) is fixedly connected to the bottom of the side fixing plate (602); a clamp is fixedly connected to one end of the lifting hydraulic cylinder (603); a rotating shaft is fixedly connected to one end of the lifting hydraulic cylinder (603) via the clamp; a spherical filter cover (601) is fixedly connected to one end of the rotating shaft; and the spherical filter cover (601) is arranged on the inner wall of the spherical groove (502) and is closely connected to the inner wall of the spherical groove (502); The spherical filter cover (601) is composed of two hemispherical hollow cover bodies, and the outer wall of the spherical filter cover (601) is provided with mesh holes. The inner wall of the spherical filter cover (601) is wrapped with activated carbon, and the rotating shaft is composed of two semi-cylindrical shaft bodies.

7. The etching wastewater treatment equipment according to claim 1, characterized in that: The input end and the output end of the second delivery pump (9) are both connected to a hose, and the input end and the output end of the second delivery pump (9) are connected to the incubator (10) through the hose and the electrolytic cell (8) respectively.

8. The etching wastewater treatment equipment according to claim 1, characterized in that: The top of the incubator (10) is provided with a heat-insulating cover (11), the heat-insulating cover (11) is a hemispherical heat-insulating cover, the inner wall is provided with an electric heating resistance line and a controller, the inner wall of the incubator (10) is provided with a temperature monitoring probe, and the electric heating resistance line and the controller are electrically connected, and the controller and the temperature monitoring probe are connected via wireless signal transmission; The bottom of the preliminary processing component (4) is fixedly connected to a main support base (1), and the bottom of the discharge seat (7) is fixedly connected to a secondary support base (12).

9. The etching wastewater treatment equipment according to claim 1, now provides an etching wastewater treatment method, characterized in that: The following steps are involved: S1. First, the etching wastewater to be treated is discharged into the water quality analyzer (301) through the water inlet hopper (305) and the discharge pipe to detect the pH value; S2, preparing lime water slurry through the preparation component (2); S3, discharging the etching wastewater to be treated into the treatment box (401) through the water inlet assembly (3), and controlling the discharge speed of the lime slurry from the upward spraying pipe (207) through the first output pump (206) according to the detection data, so as to reasonably use the lime slurry; S4, add PAM flocculant and continue coagulation and sedimentation treatment; S5, filtering the wastewater through the filter ball assembly (6), and then electrolyzing the wastewater through the electrolytic cell (8); S6. Finally, the incubator (10) and the heat preservation cover (11) are used together, a portion of wastewater is introduced into the incubator (10) and common microbial species are added, the temperature is controlled, and the survival and reproduction of the microbial species in the wastewater are observed and detected, thereby judging the effect of the wastewater treatment.

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