CN203683165U - Air flotation device for treating oily wastewater - Google Patents
Air flotation device for treating oily wastewater Download PDFInfo
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- CN203683165U CN203683165U CN201320893182.0U CN201320893182U CN203683165U CN 203683165 U CN203683165 U CN 203683165U CN 201320893182 U CN201320893182 U CN 201320893182U CN 203683165 U CN203683165 U CN 203683165U
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Abstract
The utility model discloses an air floatation device for treating oily wastewater. The air floatation device for treating the oily wastewater comprises a flotation column, a bubble generating device and a waste water feeding device, wherein the floatation column comprises a column body, a scum outlet is formed in the side wall of the upper part of the column body, and a treating fluid outlet is formed in the column body; the waste water feeding device comprises a water tank, a stirring paddle and a submersible pump are arranged in the water tank, the submersible pump is communicated with the column body by virtue of a waste water input pipe; the bubble generating device comprises a gas-liquid mixing pump and a gas-liquid separation tank, the inlet of the gas-liquid mixing pump is connected with the column body by virtue of a first pipeline, the outlet of the gas-liquid mixing pump is connected with the inlet of the gas-liquid separation tank by virtue of a second pipeline, the outlet of the gas-liquid separation tank is connected with the column body by virtue of a third pipeline, a water inlet valve is arranged on the first pipeline, an air suction inlet of the gas-liquid mixing pump is connected with a gas inlet pipe, a gas suction valve is arranged on the gas inlet pipe, and a gas solubilized water outlet valve is arranged on the third pipeline. The air floatation device for treating the oily wastewater is simple in structure and easy to use, and air floatation efficiency and economy are greatly improved.
Description
Technical field
The utility model relates to a kind of air-floating apparatus, particularly relates to a kind of air-floating apparatus of processing oily(waste)water.
Background technology
Oil production and processing industry wastewater flow rate are large, and pollutent is changeable.The existence form of oil content in waste water generally depended in the removal of this class waste water, can generally separate by Physical by oil slick in oily(waste)water, dissolving oil can separate by biochemical process, and the oil in water emulsion existing with colloid, because it is in stable condition and particle diameter is little and more difficult removal.
By Bubble-floating Method is a kind of surfactants based isolation technique, and China starts from 20th century 60, the seventies to the research of air flotation technology, is one of country of studying the earliest air flotation technology.Increasing research discovery afterwards, By Bubble-floating Method is also a very promising technology for the processing of oily(waste)water.In air supporting process, bubble can adhere to oil droplet, and then oil droplet is along with bubble floating is removed by deslagging.The bubble that traditional air-floating apparatus produces is large, unstable, and occupation area of equipment is large.Find after deliberation, in air supporting process, the size of bubble directly affects the adhesive efficiency of bubble and oil droplet and the ascent rate of oil droplet/bubble, therefore, the producing method of current improvement bubble is to improve air-floating apparatus, improves the directly the most effective way of air supporting treatment effect.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of air-floating apparatus of processing oily(waste)water is provided.This air-floating apparatus is simple in structure, easy to use, has improved significantly daf efficiency and economy.
For achieving the above object, the technical solution adopted in the utility model is: a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: comprise flotation column, bubble formation device and influent waste water device; Described flotation column comprises cylinder, and the sidewall on described cylinder top is provided with scum silica frost relief outlet, is provided with treatment solution relief outlet on described cylinder; Described influent waste water device comprises water tank, is provided with stirring rake and submersible pump in described water tank, and described submersible pump is communicated with cylinder by waste water input tube; Described bubble formation device comprises gas-liquid mixing pump and knockout drum, the entrance of described gas-liquid mixing pump is connected with cylinder by the first pipeline, described gas-liquid mixed pump outlet is connected with the entrance of knockout drum by the second pipeline, the outlet of described knockout drum is connected with cylinder by the 3rd pipeline, on described the first pipeline, inlet valve is installed, the air suction inlet of described gas-liquid mixing pump is connected with inlet pipe, in described inlet pipe, sniff valve is installed, on described the 3rd pipeline, dissolved air water flowing water Valve is installed.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: on described the first pipeline and between inlet valve and gas-liquid mixing pump, be provided with first liquid under meter.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: on described the first pipeline and between first liquid under meter and inlet valve, be provided with vacuum meter.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: on described the 3rd pipeline, tensimeter is installed.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: on described waste water input tube, second liquid under meter is installed.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: on described cylinder and the top that is positioned at treatment solution relief outlet is provided with leakage fluid dram for subsequent use.
Above-mentioned a kind of air-floating apparatus of processing oily(waste)water, is characterized in that: in described inlet pipe, gas meter is installed, described sniff valve is between gas meter and gas-liquid mixing pump.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design.
2, the utility model incorporates in air-floating apparatus by gas-liquid mixing pump, so not only can produce size and be the bubble of 30 microns to 50 microns, and can omit the equipment such as air compressor machine and large-scale dissolving in traditional air supporting process, thereby daf efficiency and economy are greatly improved.
3, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, rationally novel in design, working reliability is high, long service life, its gas-liquid mixing pump based on producing micron order bubble, not only can overcome in traditional airfloat equipment bubble diameter large, easily seethe unsettled problem, and omitted the equipment such as air compressor machine and large-scale dissolving, greatly improved economical and practicality.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1-flotation column; 1-1-cylinder; 1-2-scum silica frost relief outlet;
1-3-treatment solution relief outlet; 1-4-leakage fluid dram for subsequent use; 2-bubble formation device;
2-1-inlet valve; 2-2-vacuum meter; 2-3-the first pipeline;
2-4-first liquid under meter; 2-5-gas meter; 2-6-sniff valve;
2-7-inlet pipe; 2-8-gas-liquid mixing pump; 2-9-the second pipeline;
2-10-knockout drum; 2-11-three pipeline; 2-12-tensimeter;
2-13-dissolved air water flowing water Valve; 3-influent waste water device; 3-1-water tank;
3-2-waste water input tube; 3-3-second liquid under meter; 3-4-submersible pump;
3-5-stirring rake.
Embodiment
A kind of air-floating apparatus of processing oily(waste)water as shown in Figure 1, comprises flotation column 1, bubble formation device 2 and influent waste water device 3, described flotation column 1 comprises cylinder 1-1, and the sidewall on described cylinder 1-1 top is provided with scum silica frost relief outlet 1-2, is provided with treatment solution relief outlet 1-3 on described cylinder 1-1, described influent waste water device 3 comprises water tank 3-1, is provided with stirring rake 3-5 and submersible pump 3-4 in described water tank 3-1, and described submersible pump 3-4 is communicated with cylinder 1-1 by waste water input tube 3-2, described bubble formation device 2 comprises gas-liquid mixing pump 2-8 and knockout drum 2-10, the entrance of described gas-liquid mixing pump 2-8 is connected with cylinder 1-1 by the first pipeline 2-3, the outlet of described gas-liquid mixing pump 2-8 is connected with the entrance of knockout drum 2-10 by the second pipeline 2-9, the outlet of described knockout drum 2-10 is connected with cylinder 1-1 by the 3rd pipeline 2-11, on described the first pipeline 2-3, inlet valve 2-1 is installed, the air suction inlet of described gas-liquid mixing pump 2-8 is connected with inlet pipe 2-7, sniff valve 2-6 is installed on described inlet pipe 2-7, on described the 3rd pipeline 2-11, dissolved air water flowing water Valve 2-13 is installed.
As shown in Figure 1, described the first pipeline 2-3 goes up and is provided with between inlet valve 2-1 and gas-liquid mixing pump 2-8 first liquid under meter 2-4.Described the first pipeline 2-3 is upper and be provided with vacuum meter 2-2 between first liquid under meter 2-4 and inlet valve 2-1.
As shown in Figure 1, on described the 3rd pipeline 2-11, tensimeter 2-12 is installed.On described waste water input tube 3-2, second liquid under meter 3-3 is installed.Described cylinder 1-1 top upper and that be positioned at treatment solution relief outlet 1-3 is provided with leakage fluid dram 1-4 for subsequent use.Gas meter 2-5 is installed on described inlet pipe 2-7, and described sniff valve 2-6 is between gas meter 2-5 and gas-liquid mixing pump 2-8.
In the present embodiment, the working process of described influent waste water device 3 is: oily(waste)water reacts, builds bridge with flocculation agent generation charge neutrality and reacts and compression double electric layer reaction under the effect of stirring rake 3-5.The medicament adding in operational process is all in water tank 3-1, after stirring rake 3-5 makes waste water mix with medicament, by submersible pump 3-4, waste water medicament mixed solution is delivered to and in flotation column 1, is carried out air supporting process.The working process of described flotation column 1 and bubble generating apparatus 2 is: the liquid in described flotation column 1 is flowed through after inlet valve 2-1, vacuum meter 2-2, first liquid under meter 2-4 and entered gas-liquid mixing pump 2-8, there is mixing of high speed with the air of gas coming through under meter 2-5 and sniff valve 2-6, the gas-liquid two-phase fluid that formation contains micron order bubble, then described gas-liquid two-phase fluid enters knockout drum 2-10 and carries out the release of undissolved air pocket, and dissolved air water is flowed through and entered the cylinder 1-1 of flotation column 1 after the 3rd pipeline 2-11 afterwards.Wherein the dissolved air water flowing water Valve 2-13 on inlet valve 2-1 and the 3rd pipeline 2-11 is used for respectively regulating flooding velocity and dissolved air water water flow.The dissolved air water with a large amount of micron order bubbles of being discharged by dissolved air water flowing water Valve 2-13 bumps and adheres to oil droplet in cylinder 1, and bubble floats with oil droplet, discharges by scum silica frost relief outlet 1-2, and after treatment purifying waste water discharged by treatment solution relief outlet 1-3.Oily(waste)water completes scavenging process in flotation column 1.
In the present embodiment, shown in bubble formation device 2, concrete, described gas-liquid mixing pump 2-8 can utilize negative pressure to suck gas, and can utilize the pump impeller of high speed rotating by liquid and gas mix and blend, make gas dissolving in liquid, dissolved efficiency can reach 80%-100%, and can to produce size be the bubble of 30 microns-50 microns.Described knockout drum 2-10 can discharge undissolved gas in gas-liquid mixing pump 2-8, thereby makes micron order Bubble formation efficiency high, stable water outlet.Described inlet valve 2-1 can regulate fluid to enter the flow of the first pipeline 2-3 and the reading of vacuum meter 2-2.Dissolved air water flowing water Valve 2-13 can regulate the flow of the 3rd pipeline 2-11 and the reading of tensimeter 2-12.
In the present embodiment, in described flotation column 1, concrete, described treatment solution relief outlet 1-3 is positioned at apart from 1/3rd places of flotation column 1 cylinder 1-1 bottom level, and described leakage fluid dram 1-4 for subsequent use is positioned at apart from 2/3rds places of flotation column 1 cylinder 1-1 bottom.
In the present embodiment, in influent waste water device 3, concrete, described stirring rake 3-5 is stainless steel stirring rake, its role is to make medicament and waste water to mix.Described submersible pump 3-4 peak flow is 0.5m
3/ h, its role is to waste water mixed solution to deliver in flotation column 1, and in addition, oily(waste)water and flocculation agent are after stirring rake 3-5 mixes, and utilizing again the high speed rotating of impeller in submersible pump 3-4 and shearing force is to realize further mixing.
In the present embodiment, the algorithm of the air-floating apparatus of this processing oily(waste)water is as follows:
Step 1: add pending emulsifying liquid waste water in inlet chest 3-1, add flocculation agent to open stirring rake 3-5, carry out flocculation reaction;
Step 2: when initial start-up, toward the interior water that injects 20L of cylinder 1 of flotation column 1, inlet valve 2-1 and dissolved air water flowing water Valve 2-13 are adjusted to maximum;
Step 3: the switch of opening gas-liquid mixing pump 2-8, turn gradually inlet valve 2-1 down until vacuum meter 2-2 shows that negative pressure is 0.1MPa-0.3MPa, then open sniff valve 2-6, regulate dissolved air water flowing water Valve 2-13, until tensimeter 2-12 is shown as 0.5MPa-3.0MPa;
Step 4: inlet valve 2-1, dissolved air water flowing water Valve 2-13 and sniff valve 2-6 are finely tuned, until obtain desirable mixed effect, the bubble of generation is entered in flotation column 1 via the 3rd pipeline 2-11 by dissolved air water flowing water Valve 2-13;
Step 5: after bubble stabilizes to be generated, open submersible pump 3-4 and treatment solution relief outlet 1-3 in water tank 3-1, oily(waste)water enters flotation column 1 and adheres to the microbubble producing, and the scum silica frost of generation is discharged by scum silica frost relief outlet 1-2, and after treatment purifying waste water discharged from treatment solution relief outlet 1-3;
Step 6: after being disposed, close submersible pump 3-4, treatment solution relief outlet 1-3, then close the sniff valve 2-6 in bubble formation device 2, close the power supply of gas-liquid mixing pump 2-8 after the gas in pipeline all discharges;
Step 7: the water of discharging from treatment solution relief outlet 1-3 can carry out water quality analysis, wherein, utilizes turbidity, oily substance content, COD etc. verify the feasibility of air-floating apparatus as index.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (7)
1. an air-floating apparatus of processing oily(waste)water, is characterized in that: comprise flotation column (1), bubble formation device (2) and influent waste water device (3), described flotation column (1) comprises cylinder (1-1), and the sidewall on described cylinder (1-1) top is provided with scum silica frost relief outlet (1-2), is provided with treatment solution relief outlet (1-3) on described cylinder (1-1), described influent waste water device (3) comprises water tank (3-1), is provided with stirring rake (3-5) and submersible pump (3-4) in described water tank (3-1), and described submersible pump (3-4) is communicated with cylinder (1-1) by waste water input tube (3-2), described bubble formation device (2) comprises gas-liquid mixing pump (2-8) and knockout drum (2-10), the entrance of described gas-liquid mixing pump (2-8) is connected with cylinder (1-1) by the first pipeline (2-3), the outlet of described gas-liquid mixing pump (2-8) is connected with the entrance of knockout drum (2-10) by the second pipeline (2-9), the outlet of described knockout drum (2-10) is connected with cylinder (1-1) by the 3rd pipeline (2-11), inlet valve (2-1) is installed on described the first pipeline (2-3), the air suction inlet of described gas-liquid mixing pump (2-8) is connected with inlet pipe (2-7), sniff valve (2-6) is installed in described inlet pipe (2-7), on described the 3rd pipeline (2-11), dissolved air water flowing water Valve (2-13) is installed.
2. a kind of air-floating apparatus of processing oily(waste)water according to claim 1, is characterized in that: described the first pipeline (2-3) is gone up and is positioned between inlet valve (2-1) and gas-liquid mixing pump (2-8) and is provided with first liquid under meter (2-4).
3. a kind of air-floating apparatus of processing oily(waste)water according to claim 2, is characterized in that: described the first pipeline (2-3) is gone up and is positioned between first liquid under meter (2-4) and inlet valve (2-1) and is provided with vacuum meter (2-2).
4. a kind of air-floating apparatus of processing oily(waste)water according to claim 1, is characterized in that: on described the 3rd pipeline (2-11), tensimeter (2-12) is installed.
5. a kind of air-floating apparatus of processing oily(waste)water according to claim 1, is characterized in that: second liquid under meter (3-3) is installed on described waste water input tube (3-2).
6. a kind of air-floating apparatus of processing oily(waste)water according to claim 1, is characterized in that: described cylinder (1-1) top upper and that be positioned at treatment solution relief outlet (1-3) is provided with leakage fluid dram for subsequent use (1-4).
7. a kind of air-floating apparatus of processing oily(waste)water according to claim 1, it is characterized in that: gas meter (2-5) is installed in described inlet pipe (2-7), and described sniff valve (2-6) is positioned between gas meter (2-5) and gas-liquid mixing pump (2-8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893182.0U CN203683165U (en) | 2013-12-31 | 2013-12-31 | Air flotation device for treating oily wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893182.0U CN203683165U (en) | 2013-12-31 | 2013-12-31 | Air flotation device for treating oily wastewater |
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| CN203683165U true CN203683165U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320893182.0U Expired - Fee Related CN203683165U (en) | 2013-12-31 | 2013-12-31 | Air flotation device for treating oily wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN108502959A (en) * | 2018-06-22 | 2018-09-07 | 南京中衡元环保科技有限公司 | Intensive air-floating apparatus and system |
-
2013
- 2013-12-31 CN CN201320893182.0U patent/CN203683165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN108502959A (en) * | 2018-06-22 | 2018-09-07 | 南京中衡元环保科技有限公司 | Intensive air-floating apparatus and system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20181231 |