CN212151686U - Degreasing device for polishing solution wastewater - Google Patents
Degreasing device for polishing solution wastewater Download PDFInfo
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- CN212151686U CN212151686U CN201922471167.7U CN201922471167U CN212151686U CN 212151686 U CN212151686 U CN 212151686U CN 201922471167 U CN201922471167 U CN 201922471167U CN 212151686 U CN212151686 U CN 212151686U
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Abstract
A polishing solution wastewater degreasing device comprises a conical hopper and a microbubble generating device arranged at the bottom of the conical hopper, wherein the conical hopper comprises a separation area and an ultrasonic area which are communicated, a first discharge hole and a second discharge hole are formed in the side edge of the top of the separation area, a first material guide pipe is arranged on the side edge of the bottom of the separation area, and the first material guide pipe extends into the conical hopper and is provided with a downward opening; the ultrasonic area is provided with an ultrasonic generating device, the side edge of the bottom of the ultrasonic area is provided with a second material guide pipe, and the second material guide pipe extends into the conical hopper and is provided with an upward opening; the micro-bubble generating device comprises a microporous aeration disc fixedly arranged at the tail end of the second material guide pipe; compressed air in the second material guide pipe generates bubbles through the micropore aeration disc and further forms micro-nano bubbles in the ultrasonic area, and the micro-nano bubbles adsorb oil masses in the polishing solution wastewater in the separation area. The utility model discloses set up uniquely, equipment cost and running cost are low, and the treatment effeciency is high, and the deoiling rate to the polishing solution waste water reaches to be higher than 96%.
Description
Technical Field
The utility model relates to a waste liquid treatment technical field, concretely relates to polishing solution waste water degreasing device.
Background
A large amount of scrapped polishing solution is generated in the polishing processing procedure of the mobile phone cover plate glass, the polishing solution contains about 1% of organic solvent and a large amount of COD, in the subsequent water treatment link, the COD reduction treatment is required to be carried out on the polishing solution, more than 50% of organic matters are separated out by adjusting the PH value, but the organic matters are more in short-chain carbon molecule, the solubility of the organic matters in water is slightly high, micro-emulsion oil clusters are easily formed, the diameter of the oil clusters is hundreds of nanometers to microns, the micro-nano oil clusters are large in specific surface area and longer in residence time in water, the micro-nano oil clusters need longer time to be aggregated into large oil clusters, and the large oil clusters are difficult to remove in conventional oil removal equipment.
The commonly used oil removal method comprises the steps of removing oil by utilizing devices such as air flotation and adsorption, partial oil in wastewater can be removed, but the problems of poor treatment effect, high operation cost, complex operation and the like generally exist, for example, the coal chemical industry wastewater pre-extraction oil removal equipment disclosed in the Chinese patent with publication number CN109734149A describes a set of integrated oil removal equipment, the structure is simple, the extraction phase of extraction dephenolization is utilized for pre-removing oil from wastewater, the oil removal effect on the coal chemical industry phenol-cyanogen wastewater reaches 20-90%, the retention time of the wastewater is too short, the treatment effect on oil clusters smaller than 10 micrometers is not ideal, the oil removal effect is not stable enough, and the fluctuation is large.
Chinese patent publication No. CN209238184U discloses an oil removing apparatus, which describes a centrifugal oil removing apparatus, which can realize automatic and uniform feeding, reduce labor intensity, and improve working efficiency, however, for removing small molecular oil mass smaller than 10 microns, a higher centrifugal rotation speed is required, the manufacturing cost and operation cost of the apparatus are both extremely high, and the application to the treatment of polishing solution waste liquid will bring a great cost burden.
Chinese patent publication No. CN108529710A discloses an air-flotation coalescence strong-swirl oil removal device, which comprises a swirl air-flotation device and a hydrocyclone, wherein the water outlet of the swirl air-flotation device is divided into two branches, one branch is connected with the inlet of the hydrocyclone, the other branch is sequentially connected with a dissolved air pump and a dissolved air tank, the outlet of the dissolved air tank is connected with an oily sewage pipeline, and the dissolved air tank contains a mixed inlet leading to the swirl air-flotation device through a sewage pipeline. However, in practical application, the total residence time of the bubbles is controlled to be about 1min, the equipment volume is small, the structure is compact, and the separation efficiency is not ideal.
Therefore, the utility model discloses aim at developing a novel degreasing device who is applied to polishing solution waste water to satisfy the production needs better.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a polish waste water degreasing device to the equipment structure of deoiling among the solution prior art is complicated, is less than 10 um's micro-nano greasy dirt removing capability not enough in the polish waste liquid that produces among the adversary cover board glass course of working, and the problem that running cost is high.
The utility model provides a technical problem adopt following technical scheme to realize:
a polishing solution wastewater degreasing device comprises a conical hopper and a microbubble generating device arranged at the bottom of the conical hopper, wherein the conical hopper comprises a separation area and an ultrasonic area which are communicated, a first discharge hole for recovering an oil phase and a second discharge hole for recovering a deoiled water phase are formed in the side edge of the top of the separation area, a feed inlet is formed in the side edge of the bottom of the separation area, the feed inlet is connected with a first material guide pipe, and the first material guide pipe extends into the conical hopper and is provided with a downward opening; the ultrasonic area is provided with an ultrasonic generating device, the side edge of the bottom of the ultrasonic area is provided with a compressed air inlet, the compressed air inlet is connected with a second material guide pipe, and the second material guide pipe extends into the conical hopper and is provided with an upward opening; the micro-bubble generating device comprises a microporous aeration disc fixedly arranged at the tail end of the second material guide pipe; compressed air in the second material guide pipe generates bubbles through the micropore aeration disc and further forms micro-nano bubbles in the ultrasonic area, and the micro-nano bubbles adsorb oil masses in the polishing solution wastewater in the separation area.
Preferably, the ultrasonic zone comprises a low-frequency ultrasonic zone and a high-frequency ultrasonic zone, bubbles generated by the microporous aeration disk sequentially pass through the low-frequency ultrasonic zone and the high-frequency ultrasonic zone, wherein a low-frequency ultrasonic generator is arranged outside the low-frequency ultrasonic zone, and a high-frequency ultrasonic generator is arranged outside the high-frequency ultrasonic zone.
Preferably, the cone angle of the conical hopper is 20-45 degrees, the separation area of the conical hopper is sequentially enlarged from the bottom to the cross section of the conical hopper, and the ultrasonic area of the conical hopper is kept unchanged from the bottom to the cross section of the conical hopper.
Preferably, the distance between the tail end of the first material guide pipe and the top of the ultrasonic area is 30-50 mm. The distance is a buffering distance, so that liquid phase is prevented from entering an ultrasonic area and affecting cutting of bubbles.
Preferably, the first discharge port and the second discharge port are overflow ports, and the distance from the first discharge port to the top of the conical hopper is smaller than the distance from the second discharge port to the top.
Preferably, the second discharge gate is provided with the corresponding oil blocking device, and the oil blocking device includes the ejection of compact chamber that comprises L shape guide plate and vertical baffle, and ejection of compact chamber and second discharge gate intercommunication, the vertical baffle top flushes with toper fill top, and vertical baffle is close to toper fill inner wall one side and sets up, and vertical baffle bottom flushes and staggers the setting with L shape guide plate top.
Has the advantages that: 1) according to the invention, the diameter of the generated micro-nano bubbles is controlled to be hundreds of nanometers to several micrometers by combining the microporous aeration disc with the ultrasonic generators with different power combinations, the buoyancy of the micro-nano bubbles in water is smaller, and the time of the micro-nano bubbles staying in the water is prolonged moderately, so that micro-nano oil stains are adsorbed for a sufficient time, and meanwhile, the surface tension of the micro-nano bubbles is large, the surface acting force for adsorbing the micro-nano oil stains is large, and the micro-nano oil stains can be better adsorbed;
2) adopt back taper type separation zone, the in-process that flows upwards, aqueous phase speed reduces gradually, and the mixed oil phase through the abundant absorption of micro-nano bubble, progressively merge at the slow ascending in-process, bubble diameter grow, the bubble of grow upwards speed is progressively accelerated, aqueous phase upwards speed is more and more slow promptly, and mixed oil phase speed is more and more fast, the ascending speed difference of two-phase progressively increases, under the influence of speed difference, form the turbulent flow around the bubble crowd that rises, make a small amount of oil phase that remains in the liquid phase adsorbed by the bubble under turbulent drive, thereby disposable adsorption rate has been guaranteed.
3) The invention has simple structure and low equipment cost, particularly the design of the inverted cone-shaped separation zone, unique and ingenious design, simple structure and low processing cost, and can effectively prevent the mixed oil phase from entering the second discharge hole to influence the final separation result;
4) the device and the method for treating the oil stain in the polishing solution wastewater have the advantages of simple treatment process, low operation cost, oil-water separation efficiency higher than 96 percent, and reduction of the oil content in water to below 1mg/l, and are beneficial to the subsequent water treatment process.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Wherein: 1. a frame; 2. a conical hopper; 3. a separation zone; 4. an ultrasonic zone; 5. a first discharge port; 6. a second discharge port; 7. an oil retaining device; 71. an L-shaped baffle; 72. a vertical baffle; 73. a discharge cavity; 8. a feed cavity; 9. a first material guide pipe; 10. a compressed air inlet; 11. a second material guide pipe; 12. a microporous aeration disc; 13. a slag discharge port; 14. a low frequency ultrasound region; 15. a low frequency ultrasonic generator; 16. a high-frequency generation region; 17. a high-frequency ultrasonic generator.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments.
The polishing solution wastewater degreasing device shown in fig. 1 comprises a conical hopper 2 and a microbubble generator arranged at the bottom of the conical hopper 2, wherein the conical hopper 2 is fixed on a rack 1, the conical hopper 2 comprises a separation area 3 and an ultrasonic area 43 which are communicated, the cone angle of the conical hopper 2 is 30 degrees, the separation area of the conical hopper 2 is sequentially increased from the bottom to the cross section thereof, and the ultrasonic area 4 of the conical hopper 2 is maintained to be unchanged from the bottom to the cross section thereof.
The side edge of the top of the separation zone 3 is provided with a first discharge port 5 for recovering the oil phase and a second discharge port 6 for recovering the deoiled water phase, the first discharge port 5 and the second discharge port are overflow ports, the distance from the first discharge port 5 to the top of the conical hopper is smaller than the distance from the second discharge port 6 to the top, and the overflow design is combined with the speed design of the mixed oil phase reaching the separation zone in the subsequent design, so that the stability of the oil phase is favorably prevented from being damaged by operations such as external force suction, and the full separation of the mixed oil phase and the water; and second discharge gate 6 is provided with corresponding fender oil device 7, it includes the ejection of compact chamber 73 that comprises L shape guide plate 71 and vertical baffle 72 to keep off oil device 7, ejection of compact chamber 73 and second discharge gate 6 intercommunication, vertical baffle 72 top flushes with toper 2 tops, vertical baffle 72 is close to toper 2 inner wall one side settings of fighting, vertical baffle 72 bottom flushes and staggers the setting with L shape guide plate 71 top, the setting of staggering is used for allowing the aqueous phase to get into ejection of compact chamber 73, and the micro-nano bubble that has the oil group of adsorption is at the in-process that rises, be kept off oil device 7 guide and move towards first discharge gate 5, prevent that the micro-nano bubble that has the oil group of adsorption from getting into second discharge gate 6 and leading to separation efficiency to reduce.
A feeding hole 8 is formed in the side edge of the bottom of the separation zone 3, the feeding hole 8 is connected with a first material guide pipe 9, and the first material guide pipe 9 extends into the conical hopper 2 and is provided with a downward opening; the distance from the tail end of the first material guide pipe 9 to the top of the ultrasonic area 4 is 40mm, the ultrasonic area 4 is provided with an ultrasonic generating device, the side edge of the bottom of the ultrasonic area 4 is provided with a compressed air inlet 10, the compressed air inlet 10 is connected with a second material guide pipe 11, and the second material guide pipe 11 extends into the conical hopper 2 and is provided with an upward opening; the micro-bubble generating device comprises a micropore aeration disc 12 fixedly arranged at the tail end of the second material guide pipe 11; specifically, the ultrasonic area 4 includes a low-frequency ultrasonic area 14 and a high-frequency ultrasonic area 16, wherein a low-frequency ultrasonic generator 15 is arranged outside the low-frequency ultrasonic area 14, a high-frequency ultrasonic generator 17 is arranged outside the high-frequency ultrasonic area, bubbles generated by compressed air in the second material guide pipe 11 passing through the microporous aeration disc 12 sequentially pass through the low-frequency ultrasonic area 14 and the high-frequency ultrasonic area 16 to form micro-nano bubbles, and the micro-nano bubbles adsorb oil clusters in the polishing solution wastewater in the separation area 3.
The slag at the bottom of the separation zone 3 can be discharged through a slag discharge opening 13.
Application example: the polishing waste liquid discharged from a mobile phone glass cover plate factory contains more organic oil phase due to reasons such as a suspending agent, a polishing cooling liquid and the like in a polishing liquid formula, the oil content is 30.5mg/l before the equipment is used, the oil content is reduced to 0.98mg/l after the equipment is used for removing oil, the oil removal rate reaches 96.8%, the waste water after oil removal enters a reclaimed water recycling system, and the service life of an ultrafiltration membrane and a reverse osmosis membrane can be prolonged by 2 years.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The polishing solution wastewater degreasing device is characterized by comprising a conical hopper and a microbubble generating device arranged at the bottom of the conical hopper, wherein the conical hopper comprises a separation area and an ultrasonic area which are communicated, a first discharge hole for recovering an oil phase and a second discharge hole for recovering an oil-removed water phase are formed in the side edge of the top of the separation area, a feed inlet is formed in the side edge of the bottom of the separation area and connected with a first material guide pipe, and the first material guide pipe extends into the conical hopper and is provided with a downward opening; the ultrasonic area is provided with an ultrasonic generating device, the side edge of the bottom of the ultrasonic area is provided with a compressed air inlet, the compressed air inlet is connected with a second material guide pipe, and the second material guide pipe extends into the conical hopper and is provided with an upward opening; the micro-bubble generating device comprises a microporous aeration disc fixedly arranged at the tail end of the second material guide pipe; compressed air in the second material guide pipe generates bubbles through the micropore aeration disc and further forms micro-nano bubbles in the ultrasonic area, and the micro-nano bubbles adsorb oil masses in the polishing solution wastewater in the separation area.
2. The degreasing device for polishing solution wastewater as recited in claim 1, wherein the ultrasonic zone comprises a low-frequency ultrasonic zone and a high-frequency ultrasonic zone, and the bubbles generated by the microporous aeration disk sequentially pass through the low-frequency ultrasonic zone and the high-frequency ultrasonic zone, wherein a low-frequency ultrasonic generator is arranged outside the low-frequency ultrasonic zone, and a high-frequency ultrasonic generator is arranged outside the high-frequency ultrasonic zone.
3. The degreasing device for polishing solution wastewater as recited in claim 1, wherein the cone angle of the conical hopper is 20-45 degrees, the separation area of the conical hopper is sequentially enlarged from the bottom to the cross section of the conical hopper, and the ultrasonic area of the conical hopper is maintained from the bottom to the cross section of the conical hopper.
4. The degreasing device for polishing solution wastewater as recited in claim 1, wherein a distance from a terminal end of the first material guide pipe to a top of the ultrasonic zone is 30-50 mm.
5. The polishing solution wastewater degreasing device as recited in claim 1, wherein the first discharge port and the second discharge port are overflow ports, and the distance from the first discharge port to the top of the conical hopper is smaller than the distance from the second discharge port to the top.
6. The degreasing device for polishing solution wastewater as recited in claim 5, wherein the second discharge port is provided with a corresponding oil baffle device, the oil baffle device comprises a discharge cavity formed by an L-shaped guide plate and a vertical baffle plate, the discharge cavity is communicated with the second discharge port, the top of the vertical baffle plate is flush with the top of the conical hopper, the vertical baffle plate is arranged close to one side of the inner wall of the conical hopper, and the bottom of the vertical baffle plate is flush with the top of the L-shaped guide plate and is staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922471167.7U CN212151686U (en) | 2019-12-31 | 2019-12-31 | Degreasing device for polishing solution wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922471167.7U CN212151686U (en) | 2019-12-31 | 2019-12-31 | Degreasing device for polishing solution wastewater |
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| CN212151686U true CN212151686U (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003749A (en) * | 2019-12-31 | 2020-04-14 | 湖南景翌湘台环保高新技术开发有限公司 | Oil stain removal device and method for polishing solution wastewater |
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2019
- 2019-12-31 CN CN201922471167.7U patent/CN212151686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003749A (en) * | 2019-12-31 | 2020-04-14 | 湖南景翌湘台环保高新技术开发有限公司 | Oil stain removal device and method for polishing solution wastewater |
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