Progressive three grades of electro-chemical water treatment facilities
Technical field
The utility model relates to the water treatment of electrochemical industry circulating cooling, sewage treatment area, is specially a kind of progressive three grades of electro-chemical water treatment facilities.
Background technology
Electrochemical method for industrial circulating cooling water processing, sewage disposal is generally to carry out electrolysis treatment by negative and positive two electrode pair industrial circulating cooling waters, sewage at present, under impressed current effect: method 1, sacrificial anode protection: produce a large amount of positively charged ion (as Fe ion, Al ion etc.) as electrolytic process makes anode (anode adopt Fe, Al) when the electrolysis, be combined the Fe(OH generating with hydroxide ion)
2there is the effect of flocculation, absorption and precipitation, can flocculate, adsorb, precipitate removal to the numerous foreign material in processed water.Method 2, electrochemical cathodic protection method: anode adopts noble coatings; stop sacrificed anticathode; the chemical reaction producing by electrolysis; make to need in processed water the material of removal to separate out (such as carbonate, heavy metal) in special cathode absorption, fouling; by scraping dirt effect, it is come off from negative electrode, then the material of needs being removed by back-flushing method is discharged operational system.
At present conventional electrochemical process is removed the water treating equipment containing scale forming matter in the treatment facility of the heavy metal ion in heavy metal water and removal water, due to electrode and processed water contact area less, hazardous and noxious substances removal effect in water is not obvious, can not reach the standard of reuse or discharge, therefore need the strong water treating equipment of a kind of ability of removal.Negative electrode can adsorb a large amount of heavy metal and other material in water treatment procedure, needs cleaning after processing finishes, and current many employings are manually wiped off, wastes time and energy, and therefore needs a kind of device that can clear up fast and automatically the impurity of negative electrode absorption.
Summary of the invention
The utility model, for solving scale forming matter and the adsorbed material cleaning comparatively difficult technical problem of hazardous and noxious substances treatment effect not obviously and on negative electrode in current electro-chemical water treating processes, provides a kind of progressive three grades of electro-chemical water treatment facilities.
The utility model is to adopt following technical scheme to realize: a kind of progressive three grades of electro-chemical water treatment facilities, comprise and be the cylinder body that tubular and upper port are provided with upper end cover; On upper end cover, have water-in; The bottom of cylinder body is provided with sewage draining exit, and sewage draining exit is connected with blow-off line, and blow-off line is provided with sewage draining valve; On the upper end cover of cylinder body, have water outlet; Described cylinder interior is provided with the cylindrical net type anode that three diameters do not wait; Cylinder interior is also provided with the tubular negative electrode that two diameters do not wait; The equal opening of upper and lower ends of described cylindrical net type anode and tubular negative electrode, described two tubular negative electrodes replace nested arrangement with three cylindrical net type anodes; What be positioned at inner side is cylindrical net type anode, be positioned at outermost adjacent with cylinder body side inwall be also cylindrical net type anode; The bottom of cylindrical net type anode and tubular negative electrode and cylinder body inner bottom surface have interval; The lower surface of described cylindrical net type anode and the upper end of tubular negative electrode and the upper end cover of cylinder body is fixedly connected; Described cylindrical net type anode is connected with the upper end cover insulation of cylinder body; The upper end of described each cylindrical net type anode is all stretched out cylinder body by a plurality of insulation joint ends through the hole of opening on upper end cover; The tubular negative electrode that is positioned at inner side has flow-guiding mouth near the position of upper port.
Pending water enters cylinder interior by the water-in on cylinder body top, and be full of gradually cylinder body, anode and negative electrode in cylinder body match between two, wherein be positioned at outermost anode and inboard wall of cylinder block pairing, the insulation joint end of anode is connected with the positive pole of power supply, power cathode is connected with the shell of cylinder body, the shell of cylinder body is connected with tubular negative electrode, anode and cathode is by the effect of electric current like this, start to the scale forming matter in processed water and objectionable impurities particularly heavy metal ion carry out electrochemistry adsorption treatment.Scale forming matter and heavy metal ion are attracted on negative electrode, and scale forming matter and formation heavy metal substance are separated out at negative electrode.Owing to adopting anode and the negative electrode of three pairs of tubulars, expanded the contact area of negative electrode and processed water, strengthened greatly the function of absorption, scrubbing better effects if.After absorption finishes, the scale forming matter of cathode surface and heavy metal substance and carbonate can scrape by blade, and scale forming matter and heavy metal substance and carbonate are to falling to cylinder base, and back flushing is discharged through the sewage draining exit of bottom.Processed water is discharged recycle through water outlet.The bottom of tubular anode and tubular negative electrode and cylinder body inner bottom surface have interval, need like this water to be processed to be full of whole cylinder body in interval between tubular anode and tubular negative electrode and cylinder body inner bottom surface.Described net type anode surface is latticed, be conducive to processed water flow and water in the absorption of foreign material.Flow-guiding mouth can promote to circulate under waterborne in cylinder body, promotes contacting of water body and anodic-cathodic, makes the more thorough of impurity absorption in water body.
Further, described tubular negative electrode and the axis of cylindrical net type anode and the dead in line of cylinder body; Also comprise negative electrode decontamination apparatus; Described negative electrode decontamination apparatus comprises and is vertically arranged on the scraper couple axle at cylinder interior center and the power system that is located at cylinder body outside; Described power system comprises motor and by motor-driven speed reduction unit, the transmission shaft of described speed reduction unit stretches into cylinder interior by the hole that is positioned at cylinder body upper end cover center and is connected with the upper end of scraper couple axle; In described cylinder body, by the horizontal stand being arranged on inboard wall of cylinder block, be provided with a bearing lower than cylindrical net type anode and tubular negative electrode lower surface that is positioned at center, middle part under cylinder body, the lower end of scraper couple axle is located in bearing; Near scraper couple axle lower end, by the outside horizontal radiation of scraper couple axle, be provided with several around the evenly distributed and isometric back up pad of scraper couple axle; Described each tubular negative electrode is all furnished with the first scraper that a plurality of bottoms are located at the vertical setting in back up pad, and described each first scraper comprises with blade relatively and lay respectively at the first elongated blade and second blade of the vertical setting of both sides inside and outside tubular negative electrode; The bottom of the first blade and the second blade is all located in back up pad; A plurality of the first scrapers corresponding to each tubular negative electrode are called one group, and between the first blade of every group of first scraper, level is provided with a plurality of the first clamping rings from bottom to top, and between the second blade, level is provided with a plurality of the second clamping rings from bottom to top; The first clamping ring and second clamping ring of every group of first scraper arrange in pairs; Inboard wall of cylinder block is furnished with the second scraper that a plurality of bottoms are fixed on the vertical setting on the back up pad the other end, and described the second scraper edge outwards and match with inboard wall of cylinder block; Between described the second scraper, from bottom to top level is provided with several the 3rd clamping rings.
After negative electrode absorption finishes, opening driven by motor scraper couple axle rotates and drives back up pad and be located at the first scraper and the rotation of the second scraper in back up pad, absorption on the negative electrode of tubular cathode surface and inboard wall of cylinder block, foulant are wiped off, the absorption being scraped, foulant fall into the bottom of cylinder body, open sewage draining exit, by back flushing, absorption, foulant and other foreign material are discharged to cylinder body.Described the first scraper and tubular negative electrode match, refer to that two blades of the first scraper lay respectively at the inside and outside both sides of tubular negative electrode, and can guarantee that with the spacing of tubular negative electrode scraper normal rotation wipes heavy metal, the scale forming matter of cathode surface absorption off, can not produce infringement by anticathode again simultaneously, described the second scraper matches with the inner side-wall of cylinder body, also refer to that the second scraper can wipe the absorption on inboard wall of cylinder block, foulant off, can not damage inner wall surface simultaneously.Adopted scrubbing after cathode surface is removed the doctor blade device of absorption, scale forming matter to realize automatization, the faster and better effects if of scrubbing.The first clamping ring and the second clamping ring are for reinforcing first, second blade of the first scraper, and the 3rd clamping ring is used for reinforcing the second scraper.
Water treating equipment described in the utility model adopt tertiary structure to carry out water treatment, and water and electrode contact area are large, and soil removability is strong; The design of negative electrode decontamination apparatus has realized the automatization cleaning of negative electrode absorption, foulant, has improved greatly working efficiency.
Accompanying drawing explanation
The structural representation of progressive three grades of electro-chemical water treatment facilities described in Fig. 1.
Described in Fig. 2, negative electrode decontamination apparatus is positioned at the plan structure schematic diagram of cylinder interior part.
The A-A sectional view of Fig. 3 Fig. 2.
The external structure schematic diagram of Fig. 4 Fig. 1.
1-cylinder body, 2-upper end cover, 3-water-in, 4-sewage draining exit, 5-sewage draining valve, 6-water outlet, 7-cylindrical net type anode, 8-tubular negative electrode, 9-insulation joint end, 10-scraper couple axle, 11-motor, 12-speed reduction unit, 13-transmission shaft, 14-horizontal stand, 15-bearing, 16-back up pad, 17-the first blade, 18-the second blade, 19-the first clamping ring, 20-the second clamping ring, 21-the second scraper, 22-the 3rd clamping ring, 23-bottom clamping ring, 24-draw-in groove, 25-water inlet valve, 26-flow-guiding mouth.
Embodiment
Progressive three grades of electro-chemical water treatment facilities, comprise and are the cylinder body 1 that tubular and upper port are provided with upper end cover 2; On upper end cover 2, have water-in 3; The bottom of cylinder body 1 is provided with sewage draining exit 4, and sewage draining exit 4 is connected with blow-off line, and blow-off line is provided with sewage draining valve 5; On the upper end cover 2 of cylinder body 1, have water outlet 6; Described cylinder body 1 inside is provided with the cylindrical net type anode 7 that three diameters do not wait; Cylinder body 1 inside is also provided with the tubular negative electrode 8 that two diameters do not wait; The equal opening of upper and lower ends of described cylindrical net type anode 7 and tubular negative electrode 8, described two tubular negative electrodes 8 replace nested arrangement with three cylindrical net type anodes 7; What be positioned at inner side is cylindrical net type anode 7, be positioned at outermost adjacent with cylinder body 1 side inwall be also cylindrical net type anode 7; Cylindrical net type anode 7 has interval with bottom and cylinder body 1 inner bottom surface of tubular negative electrode 8; Described cylindrical net type anode 7 is fixedly connected with the lower surface of the upper end of tubular negative electrode 8 and the upper end cover 2 of cylinder body 1; Described cylindrical net type anode 7 is connected with upper end cover 2 insulation of cylinder body 1; The upper end of described each cylindrical net type anode 7 is all stretched out cylinder body 1 by a plurality of insulation joint ends 9 through the hole of opening on upper end cover 2; The tubular negative electrode 8 that is positioned at inner side has flow-guiding mouth 26 near the position of upper port.
The axis of described tubular negative electrode 8 and cylindrical net type anode 7 and the dead in line of cylinder body 1; Also comprise negative electrode decontamination apparatus; Described negative electrode decontamination apparatus comprises and is vertically arranged on the scraper couple axle 10 of cylinder body 1 inside center and the power system that is located at cylinder body 1 outside; The speed reduction unit 12 that described power system comprises motor 11 and driven by motor 11, the transmission shaft 13 of described speed reduction unit 12 is stretched into cylinder body 1 inside and is connected with the upper end of scraper couple axle 10 by the hole that is positioned at cylinder body 1 upper end cover 2 centers; In described cylinder body 1, by the horizontal stand 14 being arranged on cylinder body 1 inwall, be provided with a bearing 15 lower than cylindrical net type anode 7 and tubular negative electrode 8 lower surfaces that is positioned at center, 1 time middle part of cylinder body, the lower end of scraper couple axle 10 is located in bearing 15; Near scraper couple axle 10 lower ends, by the outside horizontal radiation of scraper couple axle 10, be provided with several around the evenly distributed and isometric back up pad 16 of scraper couple axle 10; Described each tubular negative electrode 8 is all furnished with the first scraper that a plurality of bottoms are located at the vertical setting in back up pad 16, and described each first scraper comprises with blade relatively and lay respectively at the first elongated blade 17 and second blade 18 of the vertical setting of tubular negative electrode 8 inside and outside both sides; The bottom of the first blade 17 and the second blade 18 is all located in back up pad 16; A plurality of the first scrapers corresponding to each tubular negative electrode 8 are called one group, and between the first blade 17 of every group of first scraper, level is provided with between a plurality of the first clamping ring 19, the second blades 18 level from bottom to top and is provided with a plurality of the second clamping rings 20 from bottom to top; The first clamping ring 19 and second clamping ring 20 of every group of first scraper arrange in pairs; Cylinder body 1 inwall is furnished with the second scraper 21 that a plurality of bottoms are fixed on the vertical setting on back up pad 16 the other ends, and described the second scraper 21 egewises also match with cylinder body 1 inwall; Between described the second scraper 21, from bottom to top level is provided with several the 3rd clamping rings 22.
The middle and lower part of cylinder body 1 is the funnel-form of downward contraction, and described sewage draining exit 4 is located at funnel-form cylinder body bottom; Described horizontal stand 14 is located at cylinder body 1 middle and lower part bore and starts the position of shrinking.
Between described back up pad 16, be also provided with bottom clamping ring 23; Described bottom clamping ring 23 comprises the outside clamping ring between the other end that is connected to back up pad 16 and is connected to the middle part clamping ring between the non-end of back up pad 16; Middle part clamping ring comprises a plurality of circular-arc web plates that are connected to position corresponding with each the first scraper between adjacent shore plates 16, corresponding to middle part clamping ring of a plurality of circular-arc web plate composition of same group of the first scraper.
Described the first scraper has two groups, and every group has four the first scrapers, and four the first scrapers are evenly periphery each other; The second scraper 21 is four, between four the second scrapers 21, is evenly periphery.
The upper end of scraper couple axle 10 is provided with draw-in groove 24, and scraper couple axle 10 is connected with the transmission shaft 13 of speed reduction unit 12 by draw-in groove 24.
Water-in 3 is all connected with pipeline conventionally, and pipeline is provided with water inlet valve 25, for controlling flooding quantity; Water outlet 6 is generally connected with middle water reuse pipeline or discharge outlet, and cylinder body 1 bottom is done funnel and is conducive to various dirts to be concentrated and passes through sewage draining exit and discharge.Clamping ring 23 pairs of back up pads 16 in bottom play the effect of reinforcing, make back up pad 16 drive the more steady of scraper rotation.Arrow in accompanying drawing represents water (flow) direction.