CN212833216U

CN212833216U - Pickling bonderizing waste water treatment equipment

Info

Publication number: CN212833216U
Application number: CN202120431919.1U
Authority: CN
Inventors: 王振勇; 庞玉梅; 赵文宝; 王专
Original assignee: Shandong Dashan Environmental Protection Technology Co ltd
Current assignee: Shandong Dashan Environmental Protection Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-03-30
Anticipated expiration: 2031-03-01

Abstract

The utility model discloses an acid pickling bonderizing waste water treatment facility, a serial communication port, including equalizing basin, mixed reaction tank, sedimentation tank, PH equalizing basin, air supporting pond, the discharge tank that connects gradually, waste water is discharged into to equalizing basin one side, be equipped with the sewage elevator pump that is used for promoting waste water between equalizing basin and mixed reaction tank, mixed reaction tank one side is equipped with the coagulant solution pond that is used for flocculating, PH equalizing basin one side is equipped with the dosing pump that is used for adjusting the PH value, air supporting pond one side is equipped with the force (forcing) pump that is used for the air of impressing, one side intercommunication of sedimentation tank has the concentrated pond of mud, the concentrated pond of mud left side clear solution export and equalizing basin intercommunication, right side dross entry and air supporting pond intercommunication, the concentrated pond of mud downside intercommunication has the filter press, the filter press left side filter press export and equalizing basin intercommunication.

Description

Pickling bonderizing waste water treatment equipment

Technical Field

The utility model relates to a waste water treatment field specifically is a pickling bonderizing waste water treatment equipment.

Background

The wastewater for treating the phosphating industrial wastewater mainly comes from wastewater discharged by product surface cleaning (oil removal, acid cleaning and rust removal, phosphating and alkali addition neutralization) in workshop production. The phosphatized wastewater belongs to low-concentration phosphate-containing organic wastewater, and contains pollutants such as suspended solids, phosphate, zinc, anionic surfactant and the like. The wastewater treated by the phosphorization wastewater contains heavy metals and phosphates, and can cause death of red tide, algal bloom and aquatic organisms if directly discharged, and more seriously, if the heavy metals are eaten by mistake, cells of certain organs in a body are inactivated, and the consequence is hard to imagine.

So pickling bonderizing waste water recovery processing as far as possible makes waste water reach emission standard and just can discharge, but there is the structure complicacy mostly in current pickling bonderizing waste water treatment environmental protection equipment, the not good problem of waste water treatment effect, consequently, the utility model provides a pickling bonderizing waste water treatment equipment to solve the problem that proposes in the above-mentioned background art.

Disclosure of Invention

An object of the utility model is to provide an acid pickling bonderizing waste water treatment equipment to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an acid pickling bonderizing waste water treatment equipment, is including equalizing basin, mixed reaction tank, sedimentation tank, PH equalizing basin, air supporting pond, the discharge tank that connects gradually, waste water is discharged into to equalizing basin one side, be equipped with the sewage elevator pump that is used for promoting waste water between equalizing basin and mixed reaction tank, it is equipped with the coagulant solution pond that is used for flocculating to mix reaction tank one side, PH equalizing basin one side is equipped with the dosing pump that is used for adjusting the PH value, air supporting pond one side is equipped with the force (forcing) pump that is used for the air of impressing, one side intercommunication of sedimentation tank has the concentrated pond of mud, the concentrated pond of mud left side clear liquid export and equalizing basin intercommunication, right side dross entry and air supporting pond intercommunication, the concentrated pond of mud downside intercommunication has a frame filter press, the export of filter press liquid and equalizing basin intercommunication.

As the utility model discloses further scheme, mix the reaction tank and cover including spraying the lid, spray and cover and connect the liquid feed pipe, the coagulant solution pond is connected to the liquid feed pipe other end, sprays and covers the upside and set up motor one, and a motor terminal surface is connected pivot one and is run through and spray in the lid extends to mixing the reaction tank, and the pivot one is located and mixes the reaction tank internal side and set up a plurality of blades, sprays under the lid terminal surface and sets firmly a plurality of shower heads.

As a further proposal of the utility model, the coagulant aid, the coagulant and the flocculating agent are arranged in the coagulant solution tank and respectively react with the wastewater in the mixed reaction tank.

As a further proposal of the utility model, a PH controller is arranged outside the PH adjusting tank and is connected with a dosing pump.

As the utility model discloses further scheme again, the air supporting pond upside sets up motor two, and terminal surface connects pivot two under the motor two, and the sediment machine is scraped in the connection of terminal surface under the pivot two, and the air supporting pond middle part sets up aeration dish and divide into two parts with the air supporting pond, and the air supporting pond passes through the force (forcing) tube and connects the force (forcing) pump.

As a further aspect of the present invention, a filter is inserted into the discharge tank.

Compared with the prior art, the beneficial effects of the utility model are that:

1. mix the reaction tank through the design and stir when spraying and promote the flocculation effect with higher speed flocculation speed, detach divalent zinc ion and phosphate in the waste water, thereby waste water after the sediment is adjusted and air supporting machine pressurization processing through the pH value again, thereby discharge up to standard through the filter at last, further promote waste water treatment's effect, and when carrying out sludge treatment, greatly reduced the water content, alleviate the degree of difficulty of sludge cleaning.

2. The device has the advantages of simple overall structure, high wastewater removal efficiency, economy and practicability.

Drawings

FIG. 1 is a schematic structural diagram of an acid pickling and phosphating wastewater treatment device.

FIG. 2 is a schematic view of the subsequent structure of FIG. 1 in an acid pickling phosphating wastewater treatment device.

FIG. 3 is a schematic structural diagram of a mixing reaction tank in an acid pickling phosphating wastewater treatment device.

FIG. 4 is a schematic structural diagram of an air flotation tank in the acid pickling phosphating wastewater treatment equipment.

FIG. 5 is a schematic diagram of a discharge tank in an acid pickling phosphating wastewater treatment device.

FIG. 6 is a flow chart of an acid pickling and phosphating wastewater treatment device.

In the figure: 1. a regulating tank; 2. a mixing reaction tank; 201. a first motor; 202. a first rotating shaft; 203. a blade; 204. a spray cover; 205. a liquid delivery pipe; 206. a shower head; 3. a sedimentation tank; 4. a pH adjusting tank; 5. an air floatation tank; 501. a second motor; 502. a second rotating shaft; 503. a slag scraper; 504. an aeration disc; 505. a pressurizing pipe; 6. a discharge tank; 601. a filter; 7. a sludge concentration tank; 8. a plate-and-frame filter press; 10. a sewage lift pump; 11. a dosing pump; 12. a pressure pump; 13. a coagulant solution tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, an apparatus for treating acid pickling phosphating wastewater comprises a regulating tank 1, a mixing reaction tank 2, a sedimentation tank 3, a PH regulating tank 4, an air flotation tank 5 and a discharge tank 6, which are connected in sequence, wherein wastewater is discharged from one side of the regulating tank 1, be equipped with the sewage elevator pump 10 that is used for promoting waste water between equalizing basin 1 and mixed reaction tank 2, mixed reaction tank 2 one side is equipped with coagulant solution pond 13 that is used for flocculating, PH equalizing basin 4 one side is equipped with the dosing pump 11 that is used for adjusting the PH value, 5 one sides in air supporting pond are equipped with the force (forcing) pump 12 that is used for the air of impressing, one side intercommunication of sedimentation tank 3 has

sludge thickening tank

7, 7 left side clear solution exports in sludge thickening tank and equalizing basin 1 intercommunication, right side dross entry and 5 intercommunications in air supporting pond, 7 downside intercommunications in sludge thickening tank have plate and

frame filter press

8, 8 left sides press filtrate exports and equalizing basin 1 intercommunication in plate and frame filter press.

The mixing reaction tank 2 comprises a spraying cover 204, a liquid feeding pipe 205 is connected to the spraying cover 204, the other end of the liquid feeding pipe 205 is connected with the coagulant solution tank 13, a first motor 201 is arranged on the upper side of the spraying cover 204, a first rotating shaft 202 is connected to the lower end face of the first motor 201 and penetrates through the spraying cover 204 to extend into the mixing reaction tank 2, a plurality of blades 203 are arranged on the inner peripheral side face of the mixing reaction tank 2 of the first rotating shaft 202, and a plurality of spraying heads 206 are fixedly arranged on the lower end face of the spraying cover 204.

Wherein, the coagulant aid, the coagulant and the flocculant are arranged in the coagulant solution tank 13 and react with the wastewater in the mixing reaction tank 2 respectively.

Wherein, a PH controller is arranged outside the PH adjusting tank 4 and is connected with a dosing pump 11.

The upper side of the air flotation tank 5 is provided with a second motor 501, the lower end face of the second motor 501 is connected with a second rotating shaft 502, the lower end face of the second rotating shaft 502 is connected with a slag scraping machine 503, the middle of the air flotation tank 5 is provided with an aeration disc 504, the air flotation tank 5 is divided into two parts by the aeration disc 504, and the air flotation tank 5 is connected with a pressurizing pump 12 through a pressurizing pipe 505.

Wherein a filter 601 is connected to the discharge tank 6.

The utility model discloses a theory of operation is:

the phosphorization wastewater enters a regulating tank 1 to carry out homogeneous and uniform regulation on the wastewater, then the phosphorization wastewater in the regulating tank 1 is lifted into a mixed reaction tank 2 through a wastewater lifting pump 10, a coagulant is fed into a spray cover 204 through a liquid feeding pipe 205, and is continuously sprayed into the phosphorization wastewater in the mixed reaction tank 2 through a spray head 206, a motor 201 is started again, simultaneously, a blade 203 is used for stirring the phosphorization wastewater while the coagulant is sprayed, so that the coagulant is rapidly subjected to chemical reaction in the wastewater and is mutually aggregated and adsorbed to form a high-quality floccule, the floccule automatically flows along with the wastewater to enter a sedimentation tank 3, the mixed liquid of the wastewater and the floccule from the mixed reaction tank 2 enters the sedimentation tank 3 to be separated and precipitated, the floccule and sludge water are separated, clear liquid formed by the upward flow of the wastewater flows out from a triangular overflow weir and enters a pH regulating tank 4, and the floccule sinks to form sludge, the sewage is periodically discharged to a sludge concentration tank 7, effluent of a sedimentation tank 3 flows into a PH adjusting tank 4, a chemical feeding pump 11 is controlled to be started by an external PH controller, the PH value of the sewage is controlled to be within the range of 6-9, the effluent enters an air floatation tank 5 for treatment, the air floatation tank 5 is enabled to form certain pressure by a pressure pump 12 through a pressure pipe 505, added compressed air is dissolved in backflow water under certain pressure to form air dissolved water, the air dissolved water is pumped into a contact chamber at the lower part of the air floatation tank 5 through an aeration disc 504, gas in the air dissolved water is released due to small pressure in the contact chamber to form a plurality of micro bubbles, the micro bubbles have huge surface area, the bubbles can adsorb suspended flocs in a water body in the process of rising to the water surface to form foam and scum on the water surface, and a scum scraper 503 is driven by a motor II 501 through a rotating shaft II 502 to collect and treat the foam and the scum on the water surface and enter the sludge concentration tank 7, the water treated by the air floatation tank 5 flows into the discharge tank 6, and the filter 601 is connected to the discharge tank to further remove suspended matters in the water, so that organic matters in the water are reduced, and finally the water is discharged.

The sludge concentration tank 7 is mainly used for containing sludge generated by the sedimentation tank 3 and scum scraped by the scum scraping machine 503 of the floatation tank 5, the sludge is compacted by self weight for a period of time in the sludge concentration tank 7, after sedimentation and stratification, part of water is removed from the sludge and a stratification phenomenon occurs, clear water on the upper layer of the sludge concentration tank 7 is pumped back into the regulating tank 1 through a water pump, sludge on the lower layer is further dewatered by a sludge pump to the plate and frame filter press 8, the sludge in the sludge concentration tank 7 is conveyed to the plate and frame filter press 8 for final sludge dewatering treatment, the water content of the sludge after filter pressing can be reduced to 70% -80%, the dewatered sludge belongs to dangerous waste and needs to be properly treated, and pressure filtrate in the plate and frame filter press 8 is pumped back into the regulating tank 1 through the water pump for circular treatment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An acid pickling phosphorization wastewater treatment device is characterized by comprising a regulating tank (1), a mixed reaction tank (2), a sedimentation tank (3), a PH regulating tank (4), an air floatation tank (5) and a discharge tank (6) which are sequentially connected, wherein wastewater is discharged from one side of the regulating tank (1), a sewage lifting pump (10) for lifting the wastewater is arranged between the regulating tank (1) and the mixed reaction tank (2), a coagulant solution tank (13) for flocculation is arranged on one side of the mixed reaction tank (2), a dosing pump (11) for regulating the PH value is arranged on one side of the PH regulating tank (4), a pressure pump (12) for pressing air is arranged on one side of the air floatation tank (5), a sludge concentration tank (7) is communicated with one side of the sedimentation tank (3), a clear liquid outlet on the left side of the sludge concentration tank (7) is communicated with the regulating tank (1), a scum inlet on the right side is communicated with the air floatation tank (5), the lower side of the sludge concentration tank (7) is communicated with a plate-and-frame filter press (8), and the left side filtrate outlet of the plate-and-frame filter press (8) is communicated with the adjusting tank (1).

2. The acid washing and phosphating wastewater treatment equipment according to claim 1, wherein the mixing reaction tank (2) comprises a spraying cover (204), the spraying cover (204) is connected with a liquid sending pipe (205), the other end of the liquid sending pipe (205) is connected with a coagulant solution tank (13), a first motor (201) is arranged on the upper side of the spraying cover (204), the lower end face of the first motor (201) is connected with a first rotating shaft (202), the first rotating shaft (202) penetrates through the spraying cover (204) and extends into the mixing reaction tank (2), the first rotating shaft (202) is positioned on the inner peripheral side face of the mixing reaction tank (2) and is provided with a plurality of blades (203), and the lower end face of the spraying cover (204) is fixedly provided with a plurality of spraying heads (206).

3. The acid pickling phosphorization wastewater treatment equipment according to claim 2, characterized in that coagulant aid, coagulant and flocculant are in the coagulant solution tank (13) and react with wastewater in the mixing reaction tank (2) respectively.

4. The acid pickling phosphorization wastewater treatment equipment according to claim 1, characterized in that the PH adjusting tank (4) is externally provided with a PH controller and is connected with a dosing pump (11).

5. The acid pickling phosphorization wastewater treatment equipment according to claim 1, characterized in that a second motor (501) is arranged on the upper side of the air flotation tank (5), a second rotating shaft (502) is connected to the lower end face of the second motor (501), a slag scraping machine (503) is connected to the lower end face of the second rotating shaft (502), an aeration disc (504) is arranged in the middle of the air flotation tank (5), the air flotation tank (5) is divided into two parts by the aeration disc (504), and the air flotation tank (5) is connected with a pressurizing pump (12) through a pressurizing pipe (505).

6. The acid pickling phosphating wastewater treatment equipment according to claim 1, wherein a filter (601) is connected into the discharge tank (6).