CN101746909A - Method for pretreating machining waste emulsion liquid and equipment therefor - Google Patents
Method for pretreating machining waste emulsion liquid and equipment therefor Download PDFInfo
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- CN101746909A CN101746909A CN200910227633A CN200910227633A CN101746909A CN 101746909 A CN101746909 A CN 101746909A CN 200910227633 A CN200910227633 A CN 200910227633A CN 200910227633 A CN200910227633 A CN 200910227633A CN 101746909 A CN101746909 A CN 101746909A
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Abstract
The invention relates to a method for pretreating machining waste emulsion liquid and equipment therefor, comprising five steps as follows: PH value adjustment, demulsification, air flotation, water level adjustment and oil pumping and water draining. Firstly, the waste emulsion liquid is adjusted to be neutral, then a demulsifier is added and mixed by a mixing reaction separator, the oil and water of the waste emulsion liquid are layered through air flotation, and finally the oil is pumped from the upper part of the mixing reaction separator and the water is drained from the lower part to realize oil-water separation and further realize the pretreatment of the waste emulsion liquid, the separated oil can be reutilized as fuels, the waste harmlessness and resource utilization are realized, the energy is saved, the environment is protected, the environmental and economical benefits can be brought, and the separated water is further purified to meet the national drainage standard for industrial waste water. The equipment used in the method is the mixing reaction separator which has simple structure, convenient operation, not high technical demand for the operating personnel, stable running of the equipment, low failure rate and no sludge blockage or sediment in the running process.
Description
Technical field:
The present invention relates to the recycling technology of the employed emulsion of field of machining, be specifically related to a kind of pretreatment process and equipment of machining waste emulsion liquid.
Background technology:
Along with socioeconomic continuous development, people more and more pay attention to the quality condition of surrounding enviroment, especially those can cause the problem of environmental pollution that health of people suffers damage, environmental pollution is owing to the insufficient utilization of people to resource from seeing in essence, cause having quite a few resource to be discharged into unfavourably and cause in the environment, therefore, fully reclaiming various useful resources from trade effluent is one of important measures that reduce environmental pollution.
Emulsifying liquid waste water is mainly from industry such as mechanical cutting, mining machinery processing, cold rolling mills, in metallic substance cutting, calender line, emulsion plays condensation, effect such as lubricated, antirust, its main component is made of tensio-active agent, stablizer, rust-preventive agent, defoamer, lubricant and other process auxiliaries, and concentration is generally between 2～10%.Emulsion enters directly that environmental hazard is very big, and at first, its concentration can make the waste water COD index significantly increase up to the organism of tens thousand of mg/litre, and contained various chemical assistants grow to aquatic animals and plants, and disadvantageous effect is arranged; And emulsion can also impel, and many original water-fast toxic substances are dissolved, be dispersed in the water, increases the weight of water pollution harm.
The treatment process of current emulsifying liquid waste water has several methods such as ultrafiltration membrane treatment technology, electric floating technology and chemical coagulation and precipitation treatment technology.The ultrafiltration membrane treatment technology is suitable for the wastewater treatment of oil-contg in thousands of mg/litre, but when oleaginousness reaches tens thousand of mg/litre, exists fenestra easily to block, and filter membrane replacing is frequent, defectives such as COD clearance reduction; Electric floating technological processing craft process complexity, counter electrode plate specification of quality is higher, and equipment manufacturing cost is relatively more expensive usually; It is big to produce the quantity of slag in the treating processes, and the processing cost of body refuse is higher, is unsuitable at middle-size and small-size mechanical workout business enterprise expand; The chemical coagulation treatment technology exists oxyhydroxide greasy filth output big, the processing cost height; As use the sulfur waste naphtenic acid, and then need waste water is carried out neutralizing treatment, easily cause secondary pollution to take place.
Summary of the invention:
In sum; for overcoming the deficiencies in the prior art; the invention provides a kind of pretreatment process and equipment of machining waste emulsion liquid; it is in the hybrid reaction separator waste emulsion liquid to be neutralized; breakdown of emulsion and air supporting are with the profit layering in the waste emulsion liquid; oil reservoir swims on the water layer; pump from the top of hybrid reaction separator then; the bottom draining; realize oily water separation; realization is to the pre-treatment of waste emulsion liquid; isolated oil can fuel etc. mode utilize once more, realize that refuse is innoxious; recycling, save energy; the protection environment; can bring obvious environmental economical profit, isolated water can further carry out purifying treatment, makes it reach national industrial wastewater discharge standard.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of pretreatment process of machining waste emulsion liquid and equipment, it comprises following processing step:
A, adjusting pH value
Waste emulsion liquid is added the hybrid reaction separator, add alkaline solution or acid solution again, start the hybrid reaction separator, the pH value of waste emulsion liquid is adjusted to 6～8, close the hybrid reaction separator then;
B, breakdown of emulsion
In the waste emulsion liquid of adjusting pH value, add emulsion splitter, start the hybrid reaction separator, stirred 10～15 minutes, stop to stir;
C, air supporting
From hybrid reaction separator bottom, in the waste emulsion liquid after breakdown of emulsion stirs, charge into pressurized air, until the complete layering of the profit of waste emulsion liquid, stop inflation;
D, adjusting water level
From hybrid reaction separator bottom, water filling in the waste emulsion liquid after air supporting, reach preset height to oil-water separation interface after, stop water filling;
E, oil pumping draining
From hybrid reaction separator top, waste oil is extracted out, then,, waste water is discharged from hybrid reaction separator bottom;
Technical scheme of the present invention can also be achieved in that each composition weight percent of described emulsion splitter is: MgSO
40.01%～5%, Al
2(SO
4)
30.01%～0.5%, cationic-type polyacrylamide 0.001%～0.5%, non-ionic polyacrylamide 0.001%～0.2%, surplus is a water.
Technical scheme of the present invention can be achieved in that described hybrid reaction separator comprises tank body 6, the top of tank body 6 is taper, its upper end is connected with hopper 1 by Y-tube 16, the side pipe mouth of Y-tube 16 connects oil pick-up tube 4, be provided with fixed connecting piece 5 in the tank body 6, motor 15 is set on the fixed connecting piece 5, motor 15 connects whipping appts 14, the inwall of tank body 6 bottoms is provided with cyclic distributive pipe 13, distributive pipe 13 connects water inlet pipe 8, and the bottom funnel of tank body 6, its inwall are provided with the air supporting pipe 9 of tertiary circulation shape at least, air supporting pipe 9 connects compressor 12, and tank body 6 lower ends are provided with water shoot 11.
Technical scheme of the present invention can also be achieved in that described motor 15 is drip proof machine, and motor 15 and whipping appts 14 all are arranged on the vertical axis of tank body 6.
Technical scheme of the present invention can also be achieved in that described Y-tube 16 is transparent Y-tube, its outer wall is provided with infrared inductor 2, be provided with sealing-ring 17 between Y-tube 16 and the hopper 1, be provided with sealing-ring 18 between Y-tube 16 and the tank body 6.
Technical scheme of the present invention can also be achieved in that and be respectively arranged with valve 3, valve 7 and valve 10 on described oil pick-up tube 4, water inlet pipe 8 and the water shoot 11.
Beneficial effect of the present invention is:
1; the present invention neutralizes waste emulsion liquid in the hybrid reaction separator; breakdown of emulsion and air supporting are with the profit layering in the waste emulsion liquid; oil reservoir swims on the water layer; pump from the top of hybrid reaction separator then; the bottom draining; realize oily water separation; and then realization is to the pre-treatment of waste emulsion liquid; isolated oil can fuel etc. mode utilize once more; the realization refuse is innoxious; recycling; save energy, the protection environment can bring obvious environmental economical profit; isolated water is done further purifying treatment, makes it reach national industrial wastewater discharge standard.
2, the hybrid reaction cyclone separator arrangement of the present invention's use is simple, easy to operate, and the cost cost is low, and not high to operator's technical requirements, equipment operates steadily, and casualty ratio of accidents is low, and operational process does not have body refuse and blocks or deposited phenomenon; Equipment dynamic consumes little, and noise is low, and the non-secondary pollution thing takes place, and equipment is anticorrosive, durable in use, water-saving and electricity-saving.
3, the emulsion splitter that uses of the present invention has safety, nontoxic, tasteless, environment protection clean, characteristics such as the transhipment link is few in the use, and it is little to take up room.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the I portion enlarged view of Fig. 1 of the present invention.
Embodiment:
The present invention is described in further detail below in conjunction with drawings and Examples.
Embodiment one
The structure of hybrid reaction separator such as Fig. 1, shown in Figure 2, tank body 6 tops are taper, its upper end is connected with hopper 1 by Y-tube 16, be provided with sealing-ring 18 between tank body 6 and the Y-tube 16, also be provided with sealing-ring 17 between Y-tube 16 and the hopper 1, the side pipe mouth of Y-tube 16 is connected with oil pick-up tube 4, oil pick-up tube 4 is provided with valve 3, valve 3 is a magnetic valve, Y-tube 16 is transparent Y-tube, its outer wall is provided with infrared inductor 2, and infrared inductor 2 is installed in the side pipe place of Y-tube 16, and tank body 6 internal fixing have fixed connecting piece 5, fixed connecting piece 5 is provided with motor 15, whipping appts 14 is installed, fixed connecting piece 5 in the rotating shaft of motor 15, motor 15 and whipping appts 14 all adopt stainless, corrosion resistant material, motor 15 adopts drip proof machine, motor 15 and whipping appts 14 are installed on the vertical axis of tank body 6, as shown in Figure 2, the outer wall on tank body 6 tops is provided with control panel 19, and control panel 19 is provided with eight buttons.
As shown in Figure 1, tank body 6 bottoms are funnel-form, and its inwall is provided with the air supporting pipe 9 of tertiary circulation shape, and the ring footpath of the air supporting pipe 9 of tertiary circulation shape increases from lower to upper successively, the compressor 12 that air supporting pipe 9 connects outside the tank body 6, tank body 6 lower ends are provided with water shoot 11, and water shoot 11 is provided with valve 10, and valve 10 is a magnetic valve, the inwall of the straight tube bottom of tank body 6 is provided with cyclic distributive pipe 13, distributive pipe 13 connects water inlet pipe 8, and water inlet pipe 8 is provided with valve 7, and valve 7 is a magnetic valve.
In the time of will carrying out pre-treatment to waste emulsion liquid, be equipped with emulsion splitter earlier, each composition weight percent of emulsion splitter is: MgSO
40.01%, Al
2(SO
4)
30.5%, cationic-type polyacrylamide 0.5%, non-ionic polyacrylamide 0.2%, surplus is a water, carries out pre-treatment by following processing step then:
A, adjusting pH value
Detect the pH value of pending waste emulsion liquid, then waste emulsion liquid is injected tank body 6 from hopper 1,, then in tank body 6, add hydrochloric acid soln if waste emulsion liquid is an alkalescence, if waste emulsion liquid is acid, then in tank body 6, add sodium hydroxide solution, connect the power supply of hybrid reaction separator, start " regulate and stir " button, motor 15 drives whipping appts 14 rotations, stir liquid in the tank body, treat that the pH value of waste emulsion liquid is at 7 o'clock, close " regulate and stir " button;
B, breakdown of emulsion
The emulsion splitter that adding prepares in advance in tank body 6 starts " breakdown of emulsion stirring " button, mixes and stirs 15 minutes, presses " stopping to stir " button, stops to stir, and breakdown of emulsion reaction so far finishes;
C, air supporting
" air supporting " button on the start-up control panel 19, air compressor 12 starts, start working, in tank body 6, carry air, under the drive of air, the oil that discarded emulsifying agent forms after the breakdown of emulsion reaction floats to the surface of water gradually, oil, water begin layering, and air supporting is after 60 minutes, and layering finishes, close " air supporting " button, air compressor 12 quits work;
D, adjusting water level
" adjustment " button on the start-up control panel 19, valve 7 is opened, water enters tank body 6 from water inlet pipe 8, liquid levels rise in the tank body 6, and the intersection interface of oil, water also rises, reach the height at infrared inductor 2 places when the interface after, infrared inductor 2 sends cue, close " adjustment " button, valve 7 is closed, and stops water filling in tank body 6;
E, oil pumping draining
" oil pumping " button on the start-up control panel 19, valve 3 is opened, and the oil reservoir that swims in the tank body 6 on the water surface is drawn out of from oil pick-up tube 4, is stored transportation then; After treating that oil reservoir is extracted out fully, " draining " button on the start-up control panel 19, valve 10 is opened, and the water in the tank body 6 is discharged from water shoot 11, carries out next step purifying treatment.The Reset button on the start-up control panel 19, hybrid reaction separator begin to carry out the waste emulsion liquid pre-treatment work of a new round.
Embodiment two
Repeat embodiment one, following difference is arranged: each composition weight percent of emulsion splitter is: MgSO
45%, Al
2(SO
4)
30.01%, cationic-type polyacrylamide 0.001%, non-ionic polyacrylamide 0.001%, surplus is a water, in step a, adjusting pH value, treat that the pH value of waste emulsion liquid is at 6.5 o'clock, close " regulate and stir " button, in step b, breakdown of emulsion, mix and stirred 12 minutes, stop to stir.
Embodiment three
Repeat embodiment one, following difference is arranged: each composition weight percent of emulsion splitter is: MgSO
42.5%, Al
2(SO
4)
30.3%, cationic-type polyacrylamide 0.25%, non-ionic polyacrylamide 0.1%, surplus is a water, in step a, adjusting pH value, treat that the pH value of waste emulsion liquid is at 7.5 o'clock, close " regulate and stir " button, in step b, breakdown of emulsion, mix and stirred 13 minutes, stop to stir.
Be noted that at last, the above embodiment is to the explanation of technical solution of the present invention and unrestricted, other modification that is equal to replacement or makes of affiliated technical field those of ordinary skill according to prior art, as long as do not exceed the thinking and the scope of technical solution of the present invention, all should be included within the interest field of the presently claimed invention.
Claims (6)
1. the pretreatment process of a machining waste emulsion liquid, it is characterized in that: it comprises following processing step:
A, adjusting pH value
Waste emulsion liquid is added the hybrid reaction separator, add alkaline solution or acid solution again, start the hybrid reaction separator, the pH value of waste emulsion liquid is adjusted to 6～8, close the hybrid reaction separator then;
B, breakdown of emulsion
In the waste emulsion liquid of adjusting pH value, add emulsion splitter, start the hybrid reaction separator, stirred 10～15 minutes, stop to stir;
C, air supporting
From hybrid reaction separator bottom, charge into pressurized air in the waste emulsion liquid after breakdown of emulsion stirs, until the complete layering of the profit of waste emulsion liquid, stop inflation;
D, adjusting water level
From hybrid reaction separator bottom, water filling in the waste emulsion liquid after air supporting, reach preset height to oil-water separation interface after, stop water filling;
E, oil pumping draining
From hybrid reaction separator top, waste oil is extracted out, then,, waste water is discharged from hybrid reaction separator bottom.
2. the pretreatment process of machining waste emulsion liquid according to claim 1, it is characterized in that: each composition weight percent of employed emulsion splitter is: MgSO
40.01%～5%, Al
2(SO
4)
30.01%～0.5%, cationic-type polyacrylamide 0.001%～0.5%, non-ionic polyacrylamide 0.001%～0.2%, surplus is a water.
3. the equipment of the pretreatment process of machining waste emulsion liquid according to claim 1, it is characterized in that: the hybrid reaction separator comprises tank body (6), the top of tank body (6) is taper, its upper end connects hopper (1) by Y-tube (16), the side pipe mouth of Y-tube (16) connects oil pick-up tube (4), be provided with fixed connecting piece (5) in the tank body (6), motor (15) is set on the fixed connecting piece (5), motor (15) connects whipping appts (14), the inwall of tank body (6) bottom is provided with cyclic distributive pipe (13), distributive pipe (13) connects water inlet pipe (8), tank body (6) bottom funnel, its inwall is provided with the air supporting pipe (9) of tertiary circulation shape at least, and air supporting pipe (9) connects compressor, and tank body (6) lower end is provided with water shoot (11).
4. the equipment of the pretreatment process of machining waste emulsion liquid according to claim 3, it is characterized in that: described motor (15) is a drip proof machine, and motor (15) and whipping appts (14) all are arranged on the vertical axis of tank body (6).
5. the equipment of the pretreatment process of machining waste emulsion liquid according to claim 3, it is characterized in that: described Y-tube (16) is transparent Y-tube, its outer wall is provided with infrared inductor (2), be provided with sealing-ring (17) between Y-tube (16) and the hopper (1), be provided with sealing-ring (18) between Y-tube (16) and the tank body (6).
6. the equipment of the pretreatment process of machining waste emulsion liquid according to claim 3 is characterized in that: be respectively arranged with valve (3), valve (7) and valve (10) on described oil pick-up tube (4), water inlet pipe (8) and the water shoot (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102276335A CN101746909B (en) | 2009-12-24 | 2009-12-24 | Method for pretreating machining waste emulsion liquid and equipment therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102276335A CN101746909B (en) | 2009-12-24 | 2009-12-24 | Method for pretreating machining waste emulsion liquid and equipment therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746909A true CN101746909A (en) | 2010-06-23 |
| CN101746909B CN101746909B (en) | 2011-03-02 |
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ID=42474611
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102276335A Expired - Fee Related CN101746909B (en) | 2009-12-24 | 2009-12-24 | Method for pretreating machining waste emulsion liquid and equipment therefor |
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| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| CN104003549A (en) * | 2014-05-26 | 2014-08-27 | 苏州市众和固体废物回收处理有限公司 | Waste emulsion treatment system |
| CN104003551A (en) * | 2014-05-24 | 2014-08-27 | 安徽众源新材料股份有限公司 | Waste emulsified liquid treatment method |
| CN104176843A (en) * | 2014-08-08 | 2014-12-03 | 贵阳时代沃顿科技有限公司 | Concentration recovery system and method for active ingredients of machining cleaning solution |
| CN105417781A (en) * | 2015-12-09 | 2016-03-23 | 中国海洋石油总公司 | Method for treating high oil content polymer-bearing wastewater |
| CN107308688A (en) * | 2017-08-15 | 2017-11-03 | 中冶辽宁德龙钢管有限公司 | A kind of simple separator of emulsion contaminated product and separation method |
| CN110280049A (en) * | 2019-07-18 | 2019-09-27 | 厦门凯诚通机械设备有限公司 | A kind of high oily liquid waste processing breaks solvent and its application method |
| CN110591802A (en) * | 2019-08-05 | 2019-12-20 | 浙江工业大学 | Method for preparing release agent by using waste emulsion |
| CN114354691A (en) * | 2021-12-31 | 2022-04-15 | 北京石油化工学院 | Crude oil emulsion electric field demulsification characteristic evaluation device |
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| DE4029211C1 (en) * | 1990-09-14 | 1992-04-09 | Dekon Gesellschaft Fuer Die Dekontaminierung Und Aufbereitung Umweltbelastender Stoffe Mbh, 4030 Ratingen, De | Separator for liquids - has cylindrical vessel with flotation basin and annular main liquids duct |
| DE10047958C2 (en) * | 2000-09-27 | 2002-08-01 | Meri Entsorgungstech Papierind | A flotation device |
| AT504827A1 (en) * | 2007-01-23 | 2008-08-15 | Siemens Ag Oesterreich | DEVICE FOR SEPARATING LIQUID AND LIQUID, FINE DISTRIBUTED, NON-SOLUBLE PARTICLES |
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| CN201157703Y (en) * | 2007-11-28 | 2008-12-03 | 北京石油化工学院 | Compact type rotary flow air float separating device for oily wastewater treatment |
| CN101244879B (en) * | 2008-03-11 | 2010-09-29 | 李户元 | Oil-containing oil emulsion waste water treatment process |
| CN101311127B (en) * | 2008-04-16 | 2011-08-31 | 北京清大国华环保科技有限公司 | Method and device for treating a great variety of waste emulsion of high concentration using hyperfiltration membrane method |
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| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| CN104003551A (en) * | 2014-05-24 | 2014-08-27 | 安徽众源新材料股份有限公司 | Waste emulsified liquid treatment method |
| CN104003551B (en) * | 2014-05-24 | 2015-11-25 | 安徽永杰铜业有限公司 | A kind of waste emulsified mixture treatment process |
| CN104003549A (en) * | 2014-05-26 | 2014-08-27 | 苏州市众和固体废物回收处理有限公司 | Waste emulsion treatment system |
| CN104003549B (en) * | 2014-05-26 | 2015-10-07 | 苏州市众和固体废物回收处理有限公司 | Waste emulsified mixture treatment system |
| CN104176843A (en) * | 2014-08-08 | 2014-12-03 | 贵阳时代沃顿科技有限公司 | Concentration recovery system and method for active ingredients of machining cleaning solution |
| CN105417781A (en) * | 2015-12-09 | 2016-03-23 | 中国海洋石油总公司 | Method for treating high oil content polymer-bearing wastewater |
| CN105417781B (en) * | 2015-12-09 | 2018-05-08 | 中国海洋石油集团有限公司 | A kind of processing method of high oil-containing polymer-bearing waste-water |
| CN107308688A (en) * | 2017-08-15 | 2017-11-03 | 中冶辽宁德龙钢管有限公司 | A kind of simple separator of emulsion contaminated product and separation method |
| CN110280049A (en) * | 2019-07-18 | 2019-09-27 | 厦门凯诚通机械设备有限公司 | A kind of high oily liquid waste processing breaks solvent and its application method |
| CN110591802A (en) * | 2019-08-05 | 2019-12-20 | 浙江工业大学 | Method for preparing release agent by using waste emulsion |
| CN114354691A (en) * | 2021-12-31 | 2022-04-15 | 北京石油化工学院 | Crude oil emulsion electric field demulsification characteristic evaluation device |
| CN114354691B (en) * | 2021-12-31 | 2023-10-27 | 北京石油化工学院 | Crude oil emulsion electric field demulsification characteristic evaluation device |
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