CN100506718C - Circulation contact oxidation device for acid cleaning waste water treatment - Google Patents
Circulation contact oxidation device for acid cleaning waste water treatment Download PDFInfo
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- CN100506718C CN100506718C CNB2006100862066A CN200610086206A CN100506718C CN 100506718 C CN100506718 C CN 100506718C CN B2006100862066 A CNB2006100862066 A CN B2006100862066A CN 200610086206 A CN200610086206 A CN 200610086206A CN 100506718 C CN100506718 C CN 100506718C
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- waste water
- container body
- contact oxidation
- acid cleaning
- cleaning waste
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- Treating Waste Gases (AREA)
Abstract
The present invention relates to waste water treating apparatus technology, and is especially circularly contacting oxidator for eliminating iron ion from iron and steel pickling waste water. The circularly contacting oxidator includes one container with water inlet and water outlet; one aerator inside the container; one spraying defoaming device to eliminate foam generated during aeration; and one gas eliminating and water collector communicated with the spraying defoaming device to eliminate gas and avoid waste water overflow. The present invention may be used to eliminate iron ion from waste water, and to reuse waste water, so as to reach zero discharge.
Description
Technical field
The present invention relates to the sewage treatment equipment technical field, especially a kind of circulation contact oxidation device of steel pickling waste liquor being removed iron ion processing usefulness.
Background technology
Steel surface degreasing and rust removal behind the steel cold-rolling is being handled, and the degreasing and rust removal before the steel surface application is handled, often adopt the method for pickling to carry out surface treatment, flushing after the pickling has formed a large amount of acid waste water, past acid waste water is handled the general neutralization precipitation processing mode that adopts, can only solve pH value, remove acid group, the metallic salt that exists in the waste water can't be removed, divalent iron salt in the steel pickling waste liquor still is dissolved in and is difficult in the waste water separate from waste water, enter peripheral water system, because the natural oxidation principle produces ferric iron and in the water in suspension, causes peripheral water body jaundice, contaminate environment.For this ferrous processing, in the steel pickling waste liquor treatment process, adopted in the past heat, evaporate, concentrate, freezing and crystallizing, the acid in the waste water is separated with iron.The cost height, running cost is big, troublesome poeration, products production producer is few, is unfavorable for promoting.
Summary of the invention
The object of the present invention is to provide a kind of circulation contact oxidation device to steel pickling waste liquor removal iron ion processing usefulness, this equipment can further be removed iron ion to removing the waste water of acid group, realizes waste water recycling, reaches zero release.
The technical solution adopted for the present invention to solve the technical problems is: a kind of circulation contact oxidation device for acid cleaning waste water treatment includes container body aerator, spraying defoaming device, exhaust water-recovering device; The spraying defoaming device is vertical barrel type, is positioned at the top of container body, connects with container body and is connected by flange, top at the spraying defoaming device also is equipped with the exhaust water-recovering device, the exhaust water-recovering device communicates, is connected with flange with the spraying defoaming device, and container body inside is provided with aerator; Container body top has water-in, bottom that the dewatering outlet is arranged, and the dewatering outlet connects water pump, and only to the spray equipment water supply of spraying defoaming device, wastewater treatment finishes the back water pump only to second pond pump water to water pump when wastewater treatment; Aerator in the circulation contact oxidation device to the foam overflow that aerating wastewater produced of inside to the spraying defoaming device, handled by the spraying defoaming device bubble that goes out, the exhaust water-recovering device on spraying defoaming device top can be when discharging internal gas, prevent overflowing of waste water and bubble.Container body can adopt horizontal cylinder tank body, two ends to be designed to sphere, can also be a kind of vertical barrel type or other structure formation.
Described spraying defoaming device is to be horizontally disposed with one deck porous plate at least in cylindrical shell, is equipped with on the porous plate to inhale the bubble filler, and the top that is positioned at the superiors' suction bubble filler in the spraying defoaming device is provided with spray equipment.
The dewatering outlet of described container body connects water pump, and water pump only supplies water to spray equipment when wastewater treatment, realizes circulation contact oxidation, and wastewater treatment finishes the back water pump only to second pond pump water, and this water supply respectively realized control by valve.
Described suction bubble filler adopts the oxidation of macromolecular material reinforcement to waste water.
Described exhaust water-recovering device includes housing and cover cap, housing is by the upward opening spare that radially changes and have step in less than large diameter, cover cap is a concave inward structure, Open Side Down, by support fixation in the opening of housing, the cap opening internal diameter is greater than the less internal diameter of housing; The cover cap of support fixation, opening are higher than the internal diameter transition shoulder of housing.
Described container body top is provided with the container manhole, is provided with the bubble trap manhole in the upper portion side wall of spraying defoaming device.
Described container body is provided with level indicator.
The outer top of described container body is provided with service platform, platform and protects and block and cat ladder up and down.
Described container body bottom is provided with leg.
The invention has the beneficial effects as follows that circulation contact oxidation device for acid cleaning waste water treatment of the present invention can be removed the iron ion in the waste water, realize waste water recycling, reach zero release.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a front view of the present invention.
Fig. 2 is a left view of the present invention.
Fig. 3 is a vertical view of the present invention.
Among the figure 1, container body, 3, aerator, 4, the spraying defoaming device, 5, the exhaust water-recovering device, 11, water-in, 12, dewatering outlet, 13, the container manhole, 14, liquid level meter, 15, leg, 41, porous plate, 42, inhale the bubble filler, 43, spray equipment, 51, housing, 52, cover cap, 53, support.
Embodiment
The invention will be further described below in conjunction with accompanying drawing, and a kind of circulation contact oxidation device for acid cleaning waste water treatment includes container body 1, aerator 3, spraying defoaming device 4, exhaust water-recovering device 5; Spraying defoaming device 4 is vertical barrel type, is positioned at the top of container body 1, connects with container body 1, top at spraying defoaming device 4 also is equipped with exhaust water-recovering device 5, exhaust water-recovering device 5 communicates with spraying defoaming device 4, embodiment can be a kind of structure as shown in Figure 1, container body 1 be horizontal cylinder tank body, two ends for spherical, spraying defoaming device 4 for vertical and cylindrical, be installed in the middle upper portion of container body 1; Container body 1 inside is provided with aerator 3; Container body 1 top has water-in 11, bottom that dewatering outlet 12 is arranged; The foam overflow that aerating wastewater produced of the 3 pairs of inside of aerator in the circulation contact oxidation device is to spraying defoaming device 4, handled by the spraying defoaming device bubble that goes out, the exhaust water-recovering device 5 on spraying defoaming device 4 tops can be when discharging internal gas, prevent overflowing of waste water.
The structure of spraying defoaming device 4 has been introduced at the place of analysing and observe on the accompanying drawing 1, three layers of porous plate 41 in cylinder, have been horizontally disposed with, be equipped with on every layer of porous plate and inhale bubble filler 42, three layers of porous plate are set and inhale the bubble filler structurally rationally, the de-bubble effect is also better, in the spraying defoaming device, be positioned at the superiors and inhale the top of bubble filler 42 and be provided with spray equipment 43; Dewatering outlet 12 connects water pump, and water pump only supplies water to spray equipment 43 when wastewater treatment, realizes circulation contact oxidation, and wastewater treatment finishes the back water pump only to second pond pump water, and this water supply respectively realized control (waterworks is not drawn) by valve on figure.Macromolecular material can be adopted to inhaling bubble filler 42, oxygenizement can be further strengthened waste water.
Analyse and observe the structure that exhaust water-recovering device 5 has also been introduced at the place on the accompanying drawing 1, include housing 51 and cover cap 52, housing 51 is served as reasons than minor diameter to the upward opening spare that changes than major diameter, cover cap 52 is a concave inward structure, Open Side Down, be illustrated as a kind of conical cover cap, this cover cap can also be a kind of semisphere that Open Side Down; Four of being symmetrically distributed by ring-type of cover cap 52 support 53 and are fixed in the opening of housing 51, cover cap 52 opening diameters greater than housing 51 than minor diameter, such structure can make the water that spills be collected by cover cap 52 and fall into container again; Support 53 fixed cover caps 52, opening is higher than the diameter transition step of housing 51, and such structure is in order to discharge gas.
Be provided with container manhole 13 on described container body 1 top in addition, be provided with bubble trap manhole 44 in the upper portion side wall of spraying defoaming device 4.
Described container body 1 is provided with level indicator 14, observes the situation of each feeding and expel liquid.
Be provided with service platform, platform as the top outside described container body on the accompanying drawing 1,2,3 and protect and block and cat ladder up and down, so that operation and maintenance.
Be necessary leg 15 to be set for the horizontal container body, equipment is placed steadily in the bottom.
Spraying defoaming device 4 on Fig. 1 communicates with container body 1, adopts flange to connect, and exhaust water-recovering device 5 communicates with spraying defoaming device 4, also adopts flange to connect, and at flange connections gasket is installed all.
Principle of work and process that circulation contact oxidation device for acid cleaning waste water treatment of the present invention is removed iron ion are such (using sulfuric acid to be example with pickle solution):
The waste water of the ferrous ion that contains solubility is injected circulation contact oxidation device from water-in 11, by aerator 3 air-supply oxygen blast, make the material in the waste water meet the oxygen reaction, waste water is aeration in container, produce a large amount of foams with the expellant gas overflow to spraying defoaming device 4, gas and foam are upwards by porous plate 41 with inhale bubble filler 42 and carry out exhaust and the bubble that goes out in conjunction with spray equipment 43; The exhaust water-recovering device 5 on spraying defoaming device 4 tops collects the water that splashes, make that water is unlikely to be overflowed, and discharges gas simultaneously; After above-mentioned processing, superfluous hydroxide radical constantly shifts to ferrous hydroxide and tends to be balanced in the multinuclear complex ion that forms in the operation N-process before making, the hydroxide radical of surplus while and ferrous hydroxide combination in the waste water, generate ironic hydroxide, reaction conditions must be finished the redox reaction of a series of complexity under the condition of oxygenation, the easy reaction formula is:
4Fe(OH)
2+2H
2O+O
2→4Fe(OH)
3↓
The resultant ironic hydroxide is insoluble in water, and color is a reddish-brown, so after peroxidation, mazarine becomes reddish-brown, ferrous iron becomes ferric iron basically fully.
The final precipitation of the liquid of discharging after circulation contact oxidation device is handled makes ferric iron precipitate fully at this by settling tank, be accelerate precipitation, can in the pond, add an amount of coagulating agent, at this moment final outflow water water quality pH value 7-7.5, iron-holder is lower than 5mg/L, and is Clear ﹠ Transparent never rotten.
The bottom of container body 1 of the present invention also is provided with heavy mud groove and mud discharging valve, more helps to clear up the throw out in the container.
The present invention is mainly made by steel, and container can be made by steel plate, surfaces externally and internally is through rotproofing.
The present invention thoroughly solves the problem of deironing difficulty in the Fe-laden acid wastewater, makes original evaporation, concentrates, the freezing and crystallizing deferrization process is oversimplified, economization.
Claims (10)
1, a kind of circulation contact oxidation device for acid cleaning waste water treatment is characterized in that: include container body (1), aerator (3), spraying defoaming device (4), exhaust water-recovering device (5); Spraying defoaming device (4) is vertical barrel type, is positioned at the top of container body (1), connects with container body (1), on the top of spraying defoaming device (4) exhaust water-recovering device (5) is installed also, exhaust water-recovering device (5) communicates with spraying defoaming device (4), and described gas blower (2) communicates with aerator (3) pipeline of container body (1) inside; Container body (1) top has water-in (11), bottom that dewatering outlet (12) is arranged, described dewatering outlet (12) connects water pump, only to spray equipment (43) water supply of spraying defoaming device (4), wastewater treatment finishes the back water pump only to second pond pump water to water pump when wastewater treatment.
2, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: described container body (1) is that horizontal cylinder tank body, two ends are for spherical.
3, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: described spraying defoaming device (4) is to be horizontally disposed with one deck porous plate (4 at least in cylindrical shell
1), be equipped with on the porous plate and inhale bubble filler (42), the top that is positioned at the superiors' suction bubble fillers (42) in the spraying defoaming device is provided with spray equipment (43).
4, circulation contact oxidation device for acid cleaning waste water treatment according to claim 3 is characterized in that: described suction bubble filler (42) adopts the macromolecular material that can strengthen wastewater oxidation.
5, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1, it is characterized in that: described exhaust water-recovering device (5) includes housing (51), supports (53) and cover cap (52), housing (51) is by the upward opening spare that radially changes and have step in less than large diameter, at least two supports (53) that cover cap (52) is a concave inward structure, Open Side Down, be symmetrically distributed by ring-type are fixed in the opening of housing (51), and cover cap (52) opening internal diameter is greater than the less internal diameter of housing (51); The opening of cover cap (52) is higher than the internal diameter transition shoulder of housing (51).
6, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: described container body (1) top is provided with container manhole (13), is provided with bubble trap manhole (44) in the upper portion side wall of spraying defoaming device (4).
7, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: described container body is provided with level indicator (14).
8, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: the outer top of described container body is provided with service platform, platform and protects and block and cat ladder up and down.
9, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1 is characterized in that: described container body bottom is provided with leg (15).
10, circulation contact oxidation device for acid cleaning waste water treatment according to claim 1, it is characterized in that: described spraying defoaming device (4) communicates, is connected with flange with container body (1), exhaust water-recovering device (5) communicates, is connected with flange with spraying defoaming device (4), and described flange connections all is equipped with gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100862066A CN100506718C (en) | 2006-08-21 | 2006-08-21 | Circulation contact oxidation device for acid cleaning waste water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100862066A CN100506718C (en) | 2006-08-21 | 2006-08-21 | Circulation contact oxidation device for acid cleaning waste water treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1911831A CN1911831A (en) | 2007-02-14 |
| CN100506718C true CN100506718C (en) | 2009-07-01 |
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ID=37720930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100862066A Expired - Fee Related CN100506718C (en) | 2006-08-21 | 2006-08-21 | Circulation contact oxidation device for acid cleaning waste water treatment |
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|---|---|
| CN (1) | CN100506718C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556345B (en) * | 2013-10-22 | 2016-08-17 | 宝山钢铁股份有限公司 | Accelerate the apparatus and method of acid waste water ferrous ions air oxidation reaction |
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2006
- 2006-08-21 CN CNB2006100862066A patent/CN100506718C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1911831A (en) | 2007-02-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changzhou Cod Water Treatment Equipment Co., Ltd. Assignor: Li Chunfang Contract record no.: 2010320001207 Denomination of invention: Circulation contact oxidation device for acid cleaning waste water treatment Granted publication date: 20090701 License type: Exclusive License Open date: 20070214 Record date: 20101209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20140821 |
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