CN103613157B - A kind of air-float degreasing device - Google Patents
A kind of air-float degreasing device Download PDFInfo
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- CN103613157B CN103613157B CN201310632157.1A CN201310632157A CN103613157B CN 103613157 B CN103613157 B CN 103613157B CN 201310632157 A CN201310632157 A CN 201310632157A CN 103613157 B CN103613157 B CN 103613157B
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Abstract
The invention discloses a kind of air-float degreasing device, comprise air flotation pool, water purifying tank and oil trap, overflow plate is provided with between described air flotation pool and oil trap, communicating pipe is provided with between described air flotation pool and water purifying tank, oil eliminator is provided with above described air flotation pool, described oil eliminator comprises: water jet standpipe and the upper hose for described water jet standpipe water supply, and described water jet standpipe is used for described air flotation pool water surface water spray, the dregs of fat on the described air flotation pool water surface to be pushed to described overflow plate; The present invention devises a kind of new oil removing mode, remove to oil trap to utilize the water jet propulsion liquid level dregs of fat ejected in oil eliminator, achieve without motor-driven and utilize water spray self overbottom pressure the water surface push away oil effect, joint eliminates power consumption and equipment maintenance cost, deoiling effect also can not affect by external climate more simultaneously, and oil removal efficiency is high.
Description
Technical field
The present invention relates to sewage treatment area, particularly relate to a kind of air-float degreasing device.
Background technology
Air supporting is the micro-bubble of height of formation dispersion in water, adhere to solid or the liquid particle of hydrophobic group in sewage, form water-gas-particle three-phase mixed system, after particle adhesion bubble, form apparent density be less than the flco of water and float to the water surface, form scum layer to be struck off, thus realize the process of solid-liquid or Liquid liquid Separation.
Prior art is when utilizing oil removal by air bubbling, usually utilize Oil scraper to strike off floating oil reservoir, but due to Oil scraper work dumb, particularly in the winter of northern area, because grease condensation makes Oil scraper be difficult to move in orbit, after making separation, oil product can not be removed in time, and molten phenomenon occurs again grease again, causes deoiling effect significantly to reduce.
Summary of the invention
The object of the present invention is to provide a kind of air-float degreasing device, solved in prior art and caused the problem that after separation, oil product can not be removed in time, oil removal efficiency is low due to Oil scraper cisco unity malfunction.
For achieving the above object, the present invention is by the following technical solutions:
A kind of air-float degreasing device, described oil removal plant comprises air flotation pool, water purifying tank and oil trap, is provided with overflow plate between described air flotation pool and oil trap, and described oil trap crosses the dregs of fat of described overflow plate from the water surface of described air flotation pool for receiving;
Be provided with communicating pipe between described air flotation pool and water purifying tank, for importing in described water purifying tank by the water removing the dregs of fat, one end that described communicating pipe is communicated with in described water purifying tank is provided with flow control valve;
Be provided with oil eliminator above described air flotation pool, described oil eliminator comprises:
Water jet standpipe, described water jet standpipe is provided with multiple perforate, for described air flotation pool water surface water spray, to push the dregs of fat on the described air flotation pool water surface to described overflow plate; With
Upper hose, for supplying water for described water jet standpipe.
According to air-float degreasing device of the present invention, preferably, be provided with baffle plate in described air flotation pool, thus described air flotation pool is divided into air supporting section and overflow segment along its length, described air supporting section is communicated with the top of overflow segment; Further preferably, the difference of altitude between described baffle plate upper end and described overflow plate upper end is 1/3 ~ 3 times of described height of baffle plate, and the length ratio of described air supporting section and described overflow segment is 1:4 ~ 2:3; Still more preferably, the difference of altitude between described baffle plate upper end and described overflow plate upper end is 1/2 ~ 2 times of described height of baffle plate, and the length ratio of described air supporting section and described overflow segment is 1:3 ~ 1:2.
According to air-float degreasing device of the present invention, preferably, it is characterized in that: described water jet standpipe is positioned at above described overflow segment.
According to air-float degreasing device of the present invention, preferably, it is characterized in that: described air flotation pool is provided with many water jet standpipes, such as 4 ~ 15; Described water jet standpipe is arranged on described air flotation pool along the width of described air flotation pool, and one end of described water jet standpipe is closed, and its other end is communicated with described upper hose.
According to air-float degreasing device of the present invention, preferably, the blind end of described water jet standpipe is connected to the sidewall of described air flotation pool rotationally, and the other end of described water jet standpipe is communicated with rotationally with described upper hose; Preferred further, be also provided with valve between described water jet standpipe and upper hose, to regulate the water yield entering each shower.
According to air-float degreasing device of the present invention, preferably, between the perforate direction of described water jet standpipe and horizontal plane, folded acute angle is not more than 60 °, is preferably not more than 45 ° further, is further preferably not more than 30 °; Distance between the adjacent apertures of described water jet standpipe 9 is preferably 3 ~ 15cm, more preferably 4 ~ 12cm, is further preferably 5 ~ 10cm; Distance between adjacent water jet standpipe 9 is preferably 0.3 ~ 1.5m, more preferably 0.4 ~ 1.2m, is further preferably 0.5 ~ 1m; Difference of altitude between described water jet standpipe and described overflow plate is preferably 0.07 ~ 0.5m, more preferably 0.1 ~ 0.45m, is further preferably 0.2 ~ 0.4m.
According to air-float degreasing device of the present invention, preferably, described air-float degreasing device comprises air dissolved pump, is provided with sewage inlet pipe in described air supporting section, the first molten gas diffuser tube is provided with, the outlet of described first molten gas diffuser tube and described air dissolved pump below described sewage inlet pipe.
According to air-float degreasing device of the present invention, preferably, in described overflow segment, be provided with the second molten gas diffuser tube, the outlet of described second molten gas diffuser tube and described air dissolved pump; Further preferably, the distance along the length direction of described air flotation pool between described second molten gas diffuser tube and described overflow plate is 10-50cm, and described second molten gas diffuser tube 10-50cm lower than described overflow plate upper end; Still more preferably, the distance along the length direction of described air flotation pool between described second molten gas diffuser tube and described overflow plate is 15-30cm, and described second molten gas diffuser tube 15-30cm lower than described overflow plate upper end, to improve daf efficiency.
In the present invention, the length direction of described air flotation pool refers to the flow direction of the dregs of fat floated in described air flotation pool; The width of described air flotation pool refers to direction vertical with the length direction of described air flotation pool in a horizontal plane.
Compared with prior art, air-float degreasing device of the present invention has the following advantages:
1, the present invention has abandoned mechanical frizing mode of the prior art, devise a kind of new oil removing mode, remove to oil trap to utilize the water jet propulsion liquid level dregs of fat ejected in oil eliminator, achieve without motor-driven and utilize water spray self overbottom pressure the water surface push away oil effect, save power consumption and equipment maintenance cost, deoiling effect does not also affect by external climate simultaneously, and oil removal efficiency is high;
2, in the present invention, one end of the transverse tube of oil eliminator is placed in the activity seal boot that air flotation pool sidewall is arranged, the other end movable joint is connected with upper hose, thus make transverse tube rotate to adjust water jets note direction above air flotation pool, by regulated valve to change the speed of water jet standpipe institute water jet, and demolition and maintenance can be convenient in addition;
3, air-float degreasing device of the present invention arranges dissolved air water diffuser tube at air flotation pool near oil product receiving tank end, the most easily there is oil product at air flotation pool and improve bubble and hydrophobic group adhesion dispersity in molten and end that is sedimentation again, inhibit oil product sedimentation, improve deoiling effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of air-float degreasing device of the present invention;
Fig. 2 is the schematic cross-section of Fig. 1 at A-A place.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is the schematic diagram of a kind of embodiment of air-float degreasing device of the present invention, for making this schematic diagram more concisely clear, and wherein oil eliminator, sewage inlet pipe and communicating pipe not shown.Fig. 2 is the schematic cross-section of Fig. 1 at A-A place, wherein the first dissolved air water diffuser tube and the second dissolved air water diffuser tube not shown.
As depicted in figs. 1 and 2, air-float degreasing device of the present invention comprises air flotation pool 1, oil trap 2 and water purifying tank 3.Wherein, described air flotation pool 1 for carrying out air-flotation process to the sewage entering described air flotation pool 1, with the surface making the dregs of fat in sewage float up to described air flotation pool 1.In the art, pneumatically supported implementation has multiple, air supporting implementation disclosed in such as Chinese patent CN201220439790.X or Chinese patent CN201320001221.1.In one embodiment of the invention, described air-float degreasing device also comprises air dissolved pump 7, and described air dissolved pump 7 sucks air and liquid, and makes air be dissolved in liquid, for the air-flotation process of sewage; Be provided with sewage inlet pipe 8 in described air flotation pool 1, pending sewage enters in air flotation pool 1 by described sewage inlet pipe 8; The first molten gas diffuser tube 13 is provided with below described sewage inlet pipe 8, the outlet of described first molten gas diffuser tube 13 and described air dissolved pump 7, described first molten gas diffuser tube 13 is provided with pore, to discharge bubble, the such as structure of described first molten gas diffuser tube 13 can be that one end is closed, the outlet of one end and described air dissolved pump 7 evenly establish leachy structure on the tube wall of described first molten gas diffuser tube 13.Certainly, those skilled in the art easily expect, described first molten gas diffuser tube 13 can also be other can be the structure that bubble fully discharges, such as gaseous diffuser disclosed in Chinese patent CN201320001221.1.
In one embodiment of the invention, be provided with baffle plate 6 in described air flotation pool 1, thus described air flotation pool 1 is divided into air supporting section 11 and overflow segment 12 along the length direction of described air flotation pool 1, described air supporting section 11 is communicated with the top of overflow segment 12; Described sewage inlet pipe 8 and the first molten gas diffuser tube 13 are all arranged in described air supporting section 11, are beneficial to the concentrated air-flotation process to sewage, improve daf efficiency.
Be provided with overflow plate 4 between described oil trap 2 and air flotation pool 1, described oil trap 2 crosses the dregs of fat of described overflow plate 4 from the water surface of described air flotation pool 1 for receiving.In one embodiment of the invention, described overflow plate 4 is arranged between described oil trap 2 and overflow segment 12, is provided with the second molten gas diffuser tube 10 in described overflow segment 12, the outlet of described second molten gas diffuser tube 10 and described air dissolved pump 7.Preferably, distance along described air flotation pool length direction between described second molten gas diffuser tube 10 and described overflow plate 4 is 10 ~ 50cm, be preferably 15 ~ 30cm, and described second molten gas diffuser tube 10 10 ~ 50cm lower than described overflow plate 4 upper end, be preferably 15 ~ 30cm.
Preferably, the difference of altitude between described baffle plate 6 upper end and described overflow plate 4 upper end is 1/3 ~ 3 times of described baffle plate 6 height, and described air supporting section 11 is 1:4 ~ 2:3 with the length ratio of described overflow segment 12; Further preferably, the difference of altitude between described baffle plate upper end and described overflow plate upper end is 1/2 ~ 2 times of described height of baffle plate, and the length ratio of described air supporting section and described overflow segment is 1:3 ~ 1:2, to improve the efficiency of oil removal by air bubbling further.
Communicating pipe 5 is provided with between described water purifying tank 3 and air flotation pool 1, so that the water being removed the dregs of fat by air supporting is imported in described water purifying tank 3, one end that described communicating pipe 5 is communicated with in described water purifying tank 3 is provided with flow control valve (not shown), to regulate the liquid level in described air flotation pool 1.Preferably, described communicating pipe 5, the height in described water purifying tank 3 was a little less than the height of described overflow plate 4 upper end, such as 0.1 ~ 5cm lower than the height of described overflow plate 4 upper end.
Particularly, in the present invention, described air flotation pool 1, oil trap 2 and water purifying tank 3 can be arranged along the length direction of described air flotation pool 1 successively, separated, separated between described oil trap 2 and air flotation pool 1 by overflow plate 4 between described water purifying tank 3 and oil trap 2 by dividing plate 14.
Oil eliminator is provided with above described air flotation pool 1, described oil eliminator comprises water jet standpipe 9 and the upper hose (not shown) for supplying water for described water jet standpipe 9, described water jet standpipe 9 is provided with multiple perforate, spray water for the water surface to described air flotation pool 1, to push the dregs of fat on described air flotation pool 1 water surface to described overflow plate 4.
In an embodiment of the invention, described water jet standpipe 9 is only arranged on above described overflow segment 12, and in described air supporting section 11, the dregs of fat of the water surface rely on sewage to be driven by the flowing of air supporting section 11 to overflow segment 12.Due to the effect of baffle plate 6, there are two kinds of motions in sewage in described air supporting section 11: motion upwards at the bottom of by pond and by the motion of air supporting section 11 to overflow segment 12.Therefore, the water jet standpipe cancelled above described air supporting section 11 effectively can be avoided spraying current and impact with the convection current that the sewage moved upward is formed, and prevents the molten again of the floating dregs of fat.
In one embodiment of the invention, the quantity that described overflow segment 12 is provided with water jet standpipe 9 described in many water jet standpipe 9(suitably can be determined according to the length of described overflow segment 12), such as 4-15 root; Described water jet standpipe 9 is arranged on described overflow segment 12 along the width of described air flotation pool 1, and one end of described water jet standpipe 9 is closed, its the other end is communicated with described upper hose, current spray to the water surface of air flotation pool 1 by the multiple perforates (quantity of described perforate suitably can be determined according to the width of described air flotation pool) on water jet standpipe 9, the dregs of fat are pushed to described overflow plate 4.In further preferred embodiment, the blind end of described water jet standpipe 9 is connected to the sidewall of described air flotation pool 4 rotationally, such as on this sidewall of described air flotation pool 1, be provided with activity seal boot, the blind end of described water jet standpipe 9 is connected to this sidewall by described activity seal boot; The other end of described water jet standpipe 9 is communicated with rotationally with described upper hose, and such as described water jet standpipe 9 is communicated with described upper hose by movable joint, thus can adjust the direction of the current of described water jet standpipe 9 ejection.Preferably, between described water jet standpipe 9 and upper hose, be provided with valve, to regulate spray flow or the flow velocity of each water jet standpipe 9 respectively, more to optimize the propelling movement effect to the dregs of fat.
Preferably, between the perforate direction of described water jet standpipe 9 and horizontal plane, folded acute angle is for being less than 60 °, is preferably less than 45 ° further, is further preferably less than 30 °; Distance between the adjacent apertures of described water jet standpipe 9 is preferably 3 ~ 15cm, more preferably 4 ~ 12cm, is further preferably 5 ~ 10cm; Distance between adjacent water jet standpipe 9 is preferably 0.3 ~ 1.5m, more preferably 0.4 ~ 1.2m, is further preferably 0.5 ~ 1m; Difference of altitude between described water jet standpipe 9 and described overflow plate 4 upper end is preferably 0.1 ~ 0.5m, more preferably 0.1 ~ 0.45m, is further preferably 0.2 ~ 0.4m.The flow velocity of the current of described perforate ejection is preferably 1 ~ 10m/s.
In air-float degreasing device as shown in Figure 1, sewage enters in the air supporting section 11 of described air flotation pool 1 by described sewage inlet pipe 8, dissolved air water from air dissolved pump 7 flows into below described sewage inlet pipe 8 through the first dissolved air water diffuser tube 13, and discharges gas with the form of microvesicle.Gas rises and fully contacts with sewage, after the dregs of fat in sewage adhere to bubble, forms apparent density and is less than the flco of water and floats to the water surface.Sewage after air-flotation process enters overflow segment 11 by baffle plate 6, and then flows into described water purifying tank 3 by described communicating pipe 5.The dregs of fat floated are flowed to described overflow plate 4 by the water jet propulsion that described water jet standpipe 9 ejects on the water surface, and keep stable under the effect of the second dissolved air water diffuser tube 10, the described oil trap 2 of final remittance.
Claims (7)
1. an air-float degreasing device, described oil removal plant comprises air flotation pool, water purifying tank and oil trap, is provided with overflow plate between described air flotation pool and oil trap, and described oil trap crosses the dregs of fat of described overflow plate from the water surface of described air flotation pool for receiving;
Communicating pipe is provided with between described air flotation pool and water purifying tank, for the water removing the dregs of fat is imported in described water purifying tank, one end that described communicating pipe is communicated with in described water purifying tank is provided with flow control valve, and the low 0.1-5cm of height of overflow plate upper end described in the aspect ratio of described communicating pipe in described water purifying tank;
Be provided with oil eliminator above described air flotation pool, described oil eliminator comprises:
Water jet standpipe, described water jet standpipe is provided with multiple perforate, for described air flotation pool water surface water spray, to push the dregs of fat on the described air flotation pool water surface to described overflow plate; With
Upper hose, for supplying water for described water jet standpipe;
Be provided with baffle plate in described air flotation pool, thus described air flotation pool is divided into air supporting section and overflow segment along its length, described air supporting section is communicated with the top of overflow segment; Described water jet standpipe is positioned at above described overflow segment;
Between the perforate direction of described water jet standpipe and horizontal plane, folded acute angle is not more than 60 °; Distance between the adjacent apertures of described water jet standpipe is 3 ~ 15cm; Distance between adjacent water jet standpipe is 0.3 ~ 1.5m; Difference of altitude between described water jet standpipe and described overflow plate upper end is 0.07 ~ 0.5m.
2. air-float degreasing device according to claim 1, is characterized in that: described air flotation pool is provided with many water jet standpipes;
Described water jet standpipe is arranged on described air flotation pool along the width of described air flotation pool, and one end of described water jet standpipe is closed, and its other end is communicated with described upper hose.
3. air-float degreasing device according to claim 1, is characterized in that: the blind end of described water jet standpipe is connected to the sidewall of described air flotation pool rotationally, and the other end of described water jet standpipe is communicated with rotationally with described upper hose.
4. air-float degreasing device according to claim 1, it is characterized in that: described air-float degreasing device comprises air dissolved pump, be provided with sewage inlet pipe in described air supporting section, below described sewage inlet pipe, be provided with the first molten gas diffuser tube, the outlet of described first molten gas diffuser tube and described air dissolved pump.
5. air-float degreasing device according to claim 4, is characterized in that: be provided with the second molten gas diffuser tube in described overflow segment, the outlet of described second molten gas diffuser tube and described air dissolved pump.
6. air-float degreasing device according to claim 5, it is characterized in that: the distance along described air flotation pool length direction between described second molten gas diffuser tube and described overflow plate is 10-50cm, and described second molten gas diffuser tube 10-50cm lower than described overflow plate upper end.
7. air-float degreasing device according to claim 1, is characterized in that: the difference of altitude between described baffle plate upper end and described overflow plate upper end is 1/3 ~ 3 times of described height of baffle plate, and the length ratio of described air supporting section and described overflow segment is 1:4 ~ 2:3.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105483758B (en) * | 2014-09-18 | 2018-06-29 | 有研亿金新材料有限公司 | A kind of continuous air-float degreasing device of absorption type |
| CN104451768A (en) * | 2014-12-01 | 2015-03-25 | 广西大学 | Air flotation oil removing device |
| CN109384278A (en) * | 2017-08-02 | 2019-02-26 | 中国石油天然气股份有限公司 | A kind of oil-collecting device and oil removal system |
| CN107755157A (en) * | 2017-11-24 | 2018-03-06 | 朱殿兴 | It is a kind of to be exclusively used in clearing up paint slag in paint spray booth and scrape slag equipment |
| CN115611365B (en) * | 2022-11-30 | 2023-03-10 | 福建省粤华环保科技有限公司 | High-efficient filtration system of meal kitchen waste water |
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Inventor after: Zhou Xiushan Inventor after: Chen Xuewei Inventor after: Liu Hailong Inventor after: Hao Shufu Inventor after: Su Yanbing Inventor after: Wang Mao Inventor after: Zhao Guangxin Inventor before: Liu Hailong Inventor before: Hao Shufu Inventor before: Su Yanbing Inventor before: Wang Mao Inventor before: Zhao Guangxin |
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Free format text: CORRECT: INVENTOR; FROM: LIU HAILONG HAO SHUFU SU YANBING WANG MAO ZHAO GUANGXIN TO: ZHOU XIUSHAN CHEN XUEWEI LIU HAILONG HAO SHUFU SU YANBING WANG MAO ZHAO GUANGXIN |
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