CN203794670U - Novel oily wastewater treatment system - Google Patents
Novel oily wastewater treatment system Download PDFInfo
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- CN203794670U CN203794670U CN201420208813.5U CN201420208813U CN203794670U CN 203794670 U CN203794670 U CN 203794670U CN 201420208813 U CN201420208813 U CN 201420208813U CN 203794670 U CN203794670 U CN 203794670U
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Abstract
The utility model discloses a novel oily wastewater treatment system which comprises an adjusting tank for collecting oily wastewater and a lifting pump arranged at the bottom of the adjusting tank. The lifting pump is connected with an inclined plate oil separation tank through a pipeline, and the inclined plate oil separation tank is connected with a gas floating tank through a pipeline. The lower portion of the gas floating tank is provided with a multi-phase flow pump connected with the gas floating tank through a pipeline, and the multi-phase flow pump is connected with a gas-liquid separator through a pipeline. The gas-liquid separator is connected with the bottom of the gas floating tank through a pipeline. According to the novel oily wastewater treatment system, the structure is simple, an air compressor, a dissolved air tank and a releaser do not need to be used, and the number of pipelines and valves is small. Water absorption is conducted while gas absorption is conducted, pressurizing and mixing are conducted in the pump, bubbles are subtler (20 mi to 30 mi), the gas-liquid dissolving effect is good, the performance is stable, efficiency is high, noise is low, the gas-liquid dissolving efficiency is increased by times compared with that in a traditional manner, the problems that gas supply is not stable and large bubbles overturn in the traditional manner can be solved, the structure is simple, parts are few, and the novel oily wastewater treatment system is firm, durable, easy to maintain, wide in application range, easy to operate and low in operation cost.
Description
Technical field
the utility model relates to field of waste water treatment, is specially a kind of system device for oil-contained waste water treatment system.
Background technology
?along with industrial expansion, the particularly development of petrochemical complex, the quantity discharged of oily(waste)water grows with each passing day, and its pollution to environment simultaneously is also on the rise.The output of oily(waste)water is large, and the scope relating to is wide, such as, in the processes such as oil production, refining of petroleum, petrochemical complex, storage and shipping of oil products, oil tanker accident, steamer shipping, vehicle cleaning, machinofacture, food-processing, all can produce oily(waste)water.
Oil pollution is as a kind of common pollution, very harmful to environment protection and the eubiosis, and its harm is mainly manifested in: polluted-water, hinder the negative oxygen effect of water body, and algae photosynthesis is restricted; Affect hydrobiological normal growth, make aquatic animals and plants have oily taste or toxicity, even make water body foul, destroy the utility value of water resources; Oils is attached on the fish gill, can make fish suffocate, and when concentration is 200mg/L, fish can not survive; Be attached on algae, planktonic organism, can make their death; Suppress aquatic bird and lay eggs and hatch, when serious, make birds mortality; Use oily(waste)water irrigated farmland, oil content and derivative thereof are by the surface of mulching soil and plant, stop up the hole of soil, stop air to penetrate, make soil and microorganism can not normally carry out metabolism, agricultural product quality and practical value are declined, when serious, can cause crop production reduction or death, oils is migration downwards in soil, also may cause serious groundwater pollution.
Therefore, must process for oily(waste)water, at present process for treating oil-containing waste water is more, and conventional method has the technology such as gravitational separation process, air flotation method, filtration method, absorption method, supersonic method, and wherein applying maximum is method of pressed dissolved-air release.Conventional press air-dissolving air-float system by the molten gas of dissolving static pressure, must be furnished with a series of relevant devices, and as air compressor machine, dissolving, water pump, reliever, valve etc., complex structure, cost are high.Owing to can not accomplishing the saturated dissolving of gas in water, after discharging, decompression easily produces air pocket, affect air supporting treatment effect.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of oil-contained waste water treatment system that does not need air compressor machine, dissolving, reliever, adopt the molten gas of gas-liquid multiphase pump, not only can save most equipment wherein, reduce investment and working cost, and because bubble is trickle, disperse is even, a kind of HDYC type oil-contained waste water treatment system that air supporting treatment effect is significantly improved.
The purpose of this utility model is achieved in that
Novel oil-contained waste water treatment system, comprises due to the equalizing tank 1 of collecting oily(waste)water, is arranged on the lift pump 2 of equalizing tank 1 bottom, and lift pump 2 is connected with sloping plate oil separation tank 3 by pipeline, and sloping plate oil separation tank 3 is connected with air flotation pool 5 by pipeline; The outlet bottom of described air flotation pool 5 is provided with the multiphase flow pump 6 connecting by pipeline, and multiphase flow pump 6 connects gas-liquid separator 13 by pipeline, and gas-liquid separator 13 is connected with the import bottom of air flotation pool 5 by pipeline;
The oily(waste)water surface of described equalizing tank 1 is provided with the floating-oil collector 15 being connected with sump oil case 17 by pipeline;
In described sloping plate oil separation tank 3, be provided with the waste oil collecting device being connected by pipeline with sump oil case 17, and for carrying out the outlet conduit of sludge dewatering outward transport;
On connecting tube between described sloping plate oil separation tank 3 and air flotation pool 5, be provided with the chemicals dosing plant 4 for dosing coagulant and coagulant aids;
On described air flotation pool 5, be provided with slag scraper 16, and the pipeline of discharged wastewater met the national standard or recycling;
On pipeline between bottom and the multiphase flow pump 6 of described air flotation pool 5, be respectively arranged with the first stopping valve 7 and vacuum pressure gauge 11, the air suction inlet place of multiphase flow pump 6 is provided with the 3rd stopping valve 12; On pipeline between multiphase flow pump 6 and gas-liquid separator 13, be provided with the second stopping valve 8, glass tube flowmeter 9 and tensimeter 10, on gas-liquid separator 13, be provided with automatic exhaust steam valve 14;
On described sump oil case 17, be provided with waste oil and recycle pipeline.
actively beneficial effect:system architecture of the present utility model is simple, and without air compressor machine, dissolving and reliever, pipeline, valve quantity are few; Water suction limit, limit is air-breathing, and in pump, pressurization mixes, bubble trickleer (20 μ-30 μ), and gas-liquid solute effect is good; Stable performance, efficiency is high, noise is low, gas-liquid dissolved efficiency multiplication compared with traditional way, can overcome the unstable and air pocket of traditional way air feed and seethe problem; Simple in structure, parts are few, sturdy and durable, for ease of maintenaince; Applied widely, simple to operate, running cost is low.
Brief description of the drawings
Fig. 1 is system architecture schematic diagram of the present utility model;
In figure, be: equalizing tank 1, lift pump 2, sloping plate oil separation tank 3, chemicals dosing plant 4, air flotation pool 5, multiphase flow pump 6, the first stopping valve 7, the second stopping valve 8, glass tube flowmeter 9, tensimeter 10, vacuum pressure gauge 11, the 3rd stopping valve 12, gas-liquid separator 13, automatic exhaust steam valve 14, floating-oil collector 15, slag scraper 16, sump oil case 17.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, novel oil-contained waste water treatment system, comprises due to the equalizing tank 1 of collecting oily(waste)water, is arranged on the lift pump 2 of equalizing tank 1 bottom, and lift pump 2 is connected with sloping plate oil separation tank 3 by pipeline, and sloping plate oil separation tank 3 is connected with air flotation pool 5 by pipeline; The bottom that described air flotation pool 5 exports is provided with the multiphase flow pump 6 connecting by pipeline, and multiphase flow pump 6 connects gas-liquid separator 13 by pipeline, and gas-liquid separator 13 is connected with the import bottom of air flotation pool 5 by pipeline;
The oily(waste)water surface of described equalizing tank 1 is provided with the floating-oil collector 15 being connected with sump oil case 17 by pipeline;
In described sloping plate oil separation tank 3, be provided with the waste oil collecting device being connected by pipeline with sump oil case 17, and for carrying out the outlet conduit of sludge dewatering outward transport;
On connecting tube between described sloping plate oil separation tank 3 and air flotation pool 5, be provided with the chemicals dosing plant 4 for dosing coagulant and coagulant aids;
On described air flotation pool 5, be provided with slag scraper 16, and the pipeline of discharged wastewater met the national standard or recycling;
On pipeline between bottom and the multiphase flow pump 6 of described air flotation pool 5, be respectively arranged with the first stopping valve 7 and vacuum pressure gauge 11, the suction opening place of multiphase flow pump 6 is provided with the 3rd stopping valve 12; On pipeline between multiphase flow pump 6 and gas-liquid separator 13, be provided with the second stopping valve 8, glass tube flowmeter 9 and tensimeter 10, on gas-liquid separator 13, be provided with automatic exhaust steam valve 14;
On described sump oil case 17, be provided with waste oil and recycle pipeline.
When use, equalizing tank 1 is collected oily(waste)water and is pumped into sloping plate oil separation tank 3 through lift pump 2, and oil trap 3 water outlets, after chemicals dosing plant 4 adds coagulating agent and coagulant aids, enter air flotation pool 5, qualified discharge or reuse after waste water is removed oil content in air flotation pool 5; Part produces dissolved air water through air-floating apparatus waste water after treatment through multiphase flow pump 6 and refluxes, the flow of the dissolved air water that multiphase flow pump 6 produces and pressure can regulate by the first stopping valve 7 and the second stopping valve 8, can be read the flow of backflow dissolved air water by glass tube flowmeter 9, tensimeter 10 is indicated the pressure of dissolved air water, generally be adjusted to >=4.5 bar of the pressure of dissolved air water, to ensure bubble diameter≤30 micron in dissolved air water.
When operation, by regulating the first stopping valve 7, make vacuum pressure gauge 11 show that air dissolved pump import vacuum tightness is-0.01Mpa～-0.02 Mpa, because the existence of multiphase flow pump 6 entrance vacuum makes the automatic suction pump preceding pipeline of air, enters in multiphase flow pump 6 together with water.
Regulate the 3rd stopping valve 12, can control the air imbibed quantity of multiphase flow pump 6, in conventional air-floating apparatus, controlling vapour-liquid ratio is 10%.The setting of gas-liquid separator 13 is to make the flow state after multiphase flow pump 6 outlets further stable.In the time that the front air amount amount of multiphase flow pump 6 is greater than saturation solubility, the automatic exhaust steam valve 14 automatic water stopping exhausts on gas-liquid separator 13, realize gas-water separation.
The interior oil slick of equalizing tank 1 enters oil header 17 after floating-oil collector 15 is collected, and Tube separators oil slick is from flowing into oil header, and the oil slick that air flotation pool is separated scrapes through slag scraper 16, enters oil header 17, the reuse after oil header 17 is collected of above waste oil.
The utility model is mainly used in the purifying treatment that contains oil substances and similar other waste water of character in water, the oily(waste)water that is applicable to the industries such as oil field, refinery, petrochemical complex, oil depot, metallurgy, steel rolling, coking, mechanical workout, generating is administered, can effectively remove the objectionable impuritiess such as oil in sewage, suspended substance, organism, reach solid, liquid and separate object.
Above embodiment is only for illustrating preferred implementation of the present utility model; but the utility model is not limited to above-mentioned embodiment; in the ken possessing at described field those of ordinary skill; any amendment of doing within spirit of the present utility model and principle, be equal to and substitute and improvement etc., within it all should be encompassed in the technical scheme scope of the utility model request protection.
Claims (7)
1. novel oil-contained waste water treatment system, it is characterized in that: comprise due to the equalizing tank (1) of collecting oily(waste)water, be arranged on the lift pump (2) of equalizing tank (1) bottom, lift pump (2) is connected with sloping plate oil separation tank (3) by pipeline, and sloping plate oil separation tank (3) is connected with air flotation pool (5) by pipeline; The outlet bottom of described air flotation pool (5) is provided with the multiphase flow pump (6) connecting by pipeline, and multiphase flow pump (6) connects gas-liquid separator (13) by pipeline, and gas-liquid flow separator (13) is connected with the import bottom of air flotation pool (5) by pipeline.
2. novel oil-contained waste water treatment system according to claim 1, is characterized in that: the oily(waste)water surface of described equalizing tank (1) is provided with the floating-oil collector (15) being connected with sump oil case (17) by pipeline.
3. novel oil-contained waste water treatment system according to claim 1, it is characterized in that: in described sloping plate oil separation tank (3), be provided with the waste oil collecting device being connected by pipeline with sump oil case (17), and for carrying out the outlet conduit of sludge dewatering outward transport.
4. novel oil-contained waste water treatment system according to claim 1, is characterized in that: on the connecting tube between described sloping plate oil separation tank (3) and air flotation pool (5), be provided with the chemicals dosing plant (4) for dosing coagulant and coagulant aids.
5. novel oil-contained waste water treatment system according to claim 1, is characterized in that: on described air flotation pool (5), be provided with slag scraper (16), and the pipeline of discharged wastewater met the national standard or recycling.
6. novel oil-contained waste water treatment system according to claim 1, it is characterized in that: on the pipeline between bottom and the multiphase flow pump (6) of described air flotation pool (5) outlet, be respectively arranged with the first stopping valve (7) and vacuum pressure gauge (11), the suction opening place of multiphase flow pump (6) is provided with the 3rd stopping valve (12); On pipeline between multiphase flow pump (6) and gas-liquid separator (13), be provided with the second stopping valve (8), glass tube flowmeter (9) and tensimeter (10), on gas-liquid separator (13), be provided with automatic exhaust steam valve (14).
7. novel oil-contained waste water treatment system according to claim 2, is characterized in that: on described sump oil case (17), be provided with waste oil and recycle pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208813.5U CN203794670U (en) | 2014-04-28 | 2014-04-28 | Novel oily wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208813.5U CN203794670U (en) | 2014-04-28 | 2014-04-28 | Novel oily wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794670U true CN203794670U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208813.5U Expired - Fee Related CN203794670U (en) | 2014-04-28 | 2014-04-28 | Novel oily wastewater treatment system |
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| CN (1) | CN203794670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253969A (en) * | 2020-03-06 | 2020-06-09 | 中国石油天然气股份有限公司 | Oil stain recovery and treatment device and method for workover treatment |
-
2014
- 2014-04-28 CN CN201420208813.5U patent/CN203794670U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253969A (en) * | 2020-03-06 | 2020-06-09 | 中国石油天然气股份有限公司 | Oil stain recovery and treatment device and method for workover treatment |
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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: 20140827 Termination date: 20170428 |