CN112960838A - Reduction treatment system and treatment method for machining emulsified waste liquid - Google Patents
Reduction treatment system and treatment method for machining emulsified waste liquid Download PDFInfo
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- CN112960838A CN112960838A CN202110376499.6A CN202110376499A CN112960838A CN 112960838 A CN112960838 A CN 112960838A CN 202110376499 A CN202110376499 A CN 202110376499A CN 112960838 A CN112960838 A CN 112960838A
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 239000002699 waste material Substances 0.000 title claims abstract description 57
- 238000003754 machining Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 37
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 35
- 230000003647 oxidation Effects 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 239000011550 stock solution Substances 0.000 claims abstract description 11
- 239000000243 solution Substances 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 29
- 239000012528 membrane Substances 0.000 claims description 22
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 238000004945 emulsification Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 6
- 229920002521 macromolecule Polymers 0.000 claims description 6
- 238000010907 mechanical stirring Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 238000006864 oxidative decomposition reaction Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001706 oxygenating effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a reduction treatment system for emulsified waste liquid in machining, which comprises an emulsified stock solution tank, a filter, a three-stage serial advanced oxidation tank, reverse osmosis water treatment equipment, a water production tank and a low-temperature evaporator, wherein the emulsified stock solution tank is connected with the three-stage serial advanced oxidation tank through the filter, the three-stage serial advanced oxidation tank is connected with the reverse osmosis water treatment equipment, the water production tank and the low-temperature evaporator are respectively connected with the reverse osmosis water treatment equipment, and the water production tank is connected with the low-temperature evaporator. And discloses a method for reducing and treating the emulsified waste liquid by the system. The system carries out operations such as sedimentation, emulsion breaking, reverse osmosis filtration and step-by-step concentration on the machining emulsified waste liquid in sequence, can efficiently and energy-conservingly ensure that the concentrated solution obtained from the effluent is discharged up to the standard, reduces the discharge amount of the emulsified waste liquid by more than 90 percent of enterprises, obviously reduces the treatment cost, has multiple benefits of environmental protection, sustainability, recycling and the like, and is a brand-new treatment mode for reducing the machining emulsified waste liquid.
Description
Technical Field
The invention relates to the technical field of machining emulsified waste liquid treatment, in particular to a machining emulsified waste liquid reduction treatment system and a treatment method thereof.
Background
The emulsion (commonly called as cutting fluid) is a metal working fluid widely applied to machining industries such as machine manufacturing and the like, mainly plays roles of cleaning, cooling, lubricating, preventing rust and the like, and is decomposed and deteriorated and has low performance after being recycled for multiple times, so that the emulsion becomes 'emulsified waste liquid'. The emulsified waste liquid has very complicated components, the surface of the emulsified waste liquid not only contains solid suspended matters such as metal powder and the like, but also contains soluble organic matters such as a surfactant, mineral oil and the like, and the treatment difficulty is very high.
At present, the quantity of machine tools in China is about 700 thousands of machines, the annual discharge of emulsified waste liquid reaches 4000 thousands of tons, the annual treatment cost exceeds 1000 million yuan, so that the operation burden of enterprises is greatly increased by a large amount of emulsified waste liquid, the operation cost is increased, and meanwhile, the environment is also seriously influenced if the large amount of emulsified waste liquid cannot be properly treated.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems, the invention aims to provide a reduction treatment system for emulsified waste liquid in machining, which reduces the discharge amount of the emulsified waste liquid in enterprises, reduces the treatment cost and is more efficient and energy-saving. And provides a processing method of the system.
The technical scheme is as follows: the utility model provides a machining emulsification waste liquid minimizing processing system, includes emulsification stoste case, filter, the senior oxidation case of tertiary series connection, reverse osmosis water treatment facilities, produces water pitcher, low temperature evaporimeter, and emulsification stoste case passes through the filter and is connected with the senior oxidation case of tertiary series connection, and the senior oxidation case of tertiary series connection is connected with reverse osmosis water treatment facilities, produces water pitcher, low temperature evaporimeter and is connected with reverse osmosis water treatment facilities respectively, produces the water pitcher and is connected with low temperature evaporimeter.
Further, the filter includes that two active carbon adsorption that establish ties filter the jar, is equipped with a valve between two active carbon adsorption filter jars, and the export of emulsification stoste case, the import of tertiary advanced oxidation case of establishing ties are connected with the filter respectively.
Preferably, the first layer of activated carbon adsorption filter tank is filled with columnar activated carbon, the size of the columnar activated carbon is 80-100 meshes, and the filling rate is more than or equal to 92%; the second layer of active carbon adsorption filter tank is filled with a mixture of columnar active carbon and quartz sand, the size of the mixture is 60-80 meshes, and the filling rate is more than or equal to 96%.
Further, the three-stage series advanced oxidation box comprises three photochemical oxidation reaction chambers which are sequentially connected in series, a paddle stirrer is arranged in each photochemical oxidation reaction chamber, the paddle stirrer comprises a motor and a mechanical stirring blade connected with the motor, and the rotating speed of the mechanical stirring blade is 70-100 rpm.
Preferably, the photochemical oxidation reaction chamber comprises a chamber body, and an ultraviolet light irradiation tube and an oxygenation device which are arranged inside the chamber body.
And further, the system also comprises a first small centrifugal pump and a second small centrifugal pump, wherein the first small centrifugal pump is connected between the three-stage series advanced oxidation box and the reverse osmosis water treatment equipment, and the second small centrifugal pump is connected between the reverse osmosis water treatment equipment and the low-temperature evaporator.
Furthermore, the emulsion raw liquid box is a stainless steel box body with a plurality of spherical protrusions on the outer surface, a small automatic slag scraping device is arranged, the working part of the small automatic slag scraping device extends into the middle lower part inside the emulsion raw liquid box, and the operation cycle of the small automatic slag scraping device is 48-60 hours.
Furthermore, the reverse osmosis water treatment equipment comprises three tubular membranes connected in parallel, wherein each tubular membrane is a disc tubular reverse osmosis membrane, the length of each tubular membrane is 1350-1400 mm, the surface micropores of each tubular membrane are 0.5-10 nm, and the operating pressure of each tubular membrane is 0.55-0.6 MPa.
Preferably, the operation temperature of the low-temperature evaporator is 50-60 ℃.
A method for reducing emulsified waste liquid by using the mechanical processing emulsified waste liquid reduction treatment system comprises the following steps:
the method comprises the following steps: the machining emulsified waste liquid flows through a waste liquid impurity discharge pipe to be collected and then enters an emulsified stock solution box to be stored, and metal scraps in the emulsified waste liquid are subjected to preliminary precipitation;
step two: the precipitated emulsified waste liquid enters a filter through an outlet of the emulsified stock solution tank through a pipeline, and flows into a three-stage serial advanced oxidation tank after being filtered;
step three: the three-stage series advanced oxidation box is used for carrying out oxidative decomposition on oil macromolecular compounds in the emulsified waste liquid, namely demulsification treatment, and the treated oil macromolecular compounds enter reverse osmosis water treatment equipment through a pipeline;
step four: reverse osmosis membrane treatment is carried out on liquid in the reverse osmosis water treatment equipment, clear water obtained after treatment enters a water production tank through a pipeline to realize recycling, and concentrated solution obtained after treatment enters a low-temperature evaporator to be subjected to step-by-step low-temperature evaporation concentration;
step five: and evaporating the concentrated solution in the low-temperature evaporator to form water vapor, feeding the water vapor into a water production tank through a pipeline, naturally cooling the water vapor in the water production tank to obtain clear water, and discharging the secondary concentrated solution from the low-temperature evaporator for recovery treatment.
Has the advantages that: compared with the prior art, the invention has the advantages that:
1. the invention carries out the treatment of the steps of settling, demulsifying, reverse osmosis filtering, stepwise concentrating and the like on the mechanically processed emulsified waste liquid in sequence, so that the clear water treated by the filtering unit and the concentrating unit can reach the standard for discharge or the reclaimed water for reuse, and a small amount of concentrated liquid can be subjected to quantitative discharge or recovery treatment.
2. The invention meets the requirement that the manufacturer is required by the regulatory agency to bear more treatment responsibility on the waste. The reduction treatment system can produce about 90% of water and recycle about 40% of effective components, greatly solves the environmental protection risk of enterprises, reduces about 90% of pollutant emission, accords with the green development trend, and realizes energy conservation and emission reduction.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention during operation.
Detailed Description
The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.
A reduction treatment system for machining emulsified waste liquid is shown in figure 1 and comprises an emulsified stock solution tank 1, a filter 2, a three-stage series advanced oxidation tank 3, reverse osmosis water treatment equipment 4, a water production tank 5, a low-temperature evaporator 6, a first small centrifugal pump 7 and a second small centrifugal pump 8.
The filter 2 comprises two active carbon adsorption filter tanks connected in series, the outer layer material of the active carbon adsorption filter tanks is made of glass fiber reinforced plastics, a valve is arranged between the two active carbon adsorption filter tanks, the first layer of active carbon adsorption filter tank is filled with columnar active carbon, the size of the columnar active carbon adsorption filter tank is 80-100 meshes, the filling rate is not less than 92%, the replacement period is 20-30 days, the second layer of active carbon adsorption filter tank is filled with a mixture of the columnar active carbon and quartz sand, the size of the mixture is 60-80 meshes, the filling rate is not less than 96%, the replacement period is 30-35 days, and meanwhile, a full-automatic FLECK controller can be configured to realize the control of states of the filter 2 such as operation, forward washing and backwashing. The outlet of the emulsion stock solution box 1 and the inlet of the three-stage serial advanced oxidation box 3 are respectively connected with the filter 2 through pipelines. Emulsion raw liquor case 1 has a plurality of spherical raised stainless steel box for the surface, and this structure can improve emulsion raw liquor case 1 bearing capacity by a wide margin, can replace thicker dull and stereotyped by thinner sheet material, keeps the box indeformable simultaneously, practices thrift manufacturing cost greatly. Emulsion stoste case 1 can dispose small-size automatic sediment equipment of scraping and regularly scrape the sediment, and the model is small-size SD type, carries out regularly clearance to a small amount of metal debris that precipitate and collects, and the work portion of small-size automatic sediment device stretches into the inside well lower part of emulsion stoste case 1, and the operating cycle of small-size automatic sediment device of scraping is 48 ~ 60 h.
The outlet of the three-stage series advanced oxidation box 3 passes through a small centrifugal pump I7 and the reverse osmosis water treatment equipment 4The import pipe connection, tertiary advanced oxidation case 3 of establishing ties includes the photochemical oxidation reaction chamber of three in proper order, tertiary advanced oxidation case 3 of establishing ties is used for accomplishing the oxidative decomposition of macromolecular compounds such as grease, the breakdown of emulsion is handled promptly, be equipped with a paddle agitator in every photochemical oxidation reaction chamber, the paddle agitator includes the motor and the mechanical stirring vane who is connected with the motor, the rotational speed of mechanical stirring vane is 70 ~ 100rpm, photochemical oxidation reaction chamber includes the case room body and installs ultraviolet irradiation pipe and the oxygenating equipment in the case room body is inside, the oxygenating equipment chooses rotary fan for use, fill O in the emulsification waste liquid intermittently3、H2O2Oxidizing gas of equal strength, passing through O under the irradiation of ultraviolet light3、H2O2The equal-strength oxidizing gas thoroughly oxidizes the soluble pollutants into CO2、H2O, the unit is efficient, high in water yield and free of secondary pollution.
The water production tank 5 and the low-temperature evaporator 6 are respectively connected with the reverse osmosis water treatment equipment 4, a small centrifugal pump II 8 is connected between the reverse osmosis water treatment equipment 4 and the low-temperature evaporator 6, the reverse osmosis water treatment equipment 4 comprises three tubular membranes connected in parallel, the reliability and the safety of the system are guaranteed, the tubular membranes are disc tubular reverse osmosis membranes, the length of the tubular membranes is 1350-1400 mm, the surface micropores of the tubular membranes are 0.5-10 nm, the operating pressure of the tubular membranes is 0.55-0.6 MPa, the operating temperature of the low-temperature evaporator 6 is 50-60 ℃, and the water production tank 5 is connected with the low-temperature evaporator 6. And the small-sized first centrifugal pump 7 and the small-sized second centrifugal pump 8 are small-sized SFBX stainless steel corrosion-resistant centrifugal pumps, and the lifting height is 2-4 m.
The method for reducing the emulsified waste liquid by the mechanical processing emulsified waste liquid reduction treatment system comprises the following steps:
the method comprises the following steps: the machining emulsified waste liquid flows through a waste liquid impurity discharge pipe to be collected and then enters an emulsified stock solution tank 1 to be stored, metal fragments in the emulsified waste liquid are subjected to primary natural precipitation, and metal impurities in the emulsified waste liquid are precipitated at the bottom of the emulsified stock solution tank 1;
step two: the precipitated emulsified waste liquid enters a filter 2 through an outlet of an emulsified stock solution box 1 through a pipeline, secondary filtration is completed through two activated carbon adsorption filtration tanks, the emulsified waste liquid flows into a three-stage serial advanced oxidation box 3 through a pipeline after filtration, and at the moment, a valve between the two activated carbon adsorption filtration tanks is opened;
step three: the three-stage series advanced oxidation box 3 is used for carrying out oxidative decomposition on grease macromolecular compounds in the emulsified waste liquid, namely demulsification treatment, the emulsified waste liquid passes through three photochemical oxidation reaction chambers which are sequentially connected in series step by step to carry out photochemical oxidation reaction, and the reaction time of the demulsification treatment is 2h, 1h and 1h respectively. This unit oxidizes soluble contaminants to CO2、H2O, then opening the first small centrifugal pump 7, and enabling the treated water to enter reverse osmosis water treatment equipment 4 through a pipeline;
step four: the reverse osmosis water treatment equipment 4 carries out reverse osmosis membrane treatment on liquid in the reverse osmosis water treatment equipment, three tubular membranes connected in parallel can work synchronously, clear water obtained after respective treatment enters a water production tank 5 through a pipeline, the water production tank 5 adopts a food-grade linear low-density polyethylene storage tank, and the clear water of the unit can be recycled; then, opening a second small centrifugal pump 8, and enabling the concentrated solution obtained after treatment to enter a low-temperature evaporator 6 for gradual low-temperature evaporation and concentration;
step five: the low-temperature evaporator 6 adopts an MVR low-temperature compressed air distillation method, water vapor overflows from a vapor overflow port at the upper part of the evaporator and enters a vapor pipeline, and the water vapor automatically flows into the water production tank 5 after being cooled at low temperature in the vapor pipeline; the height difference is formed between the water production tank 5 and the low-temperature evaporator 6, so that clear water which is naturally cooled in a pipeline flows into the water production tank 5 below, and secondary concentrated solution is discharged from the low-temperature evaporator 6 to be recycled or discharged after reaching standards.
The system can efficiently and energy-efficiently ensure that the concentrated solution obtained from the effluent is discharged after reaching the standard, can reduce the discharge amount of the emulsified waste liquid by more than 90 percent of enterprises, obviously reduce the treatment cost, have multiple benefits of environmental protection, sustainability, recycling and the like, and is a brand-new treatment mode for reducing the emulsified waste liquid in mechanical processing.
Claims (10)
1. The utility model provides a machining emulsification waste liquid minimizing processing system which characterized in that: including emulsification stoste case, filter, the senior oxidation case of tertiary series connection, reverse osmosis water treatment facilities, product water pitcher, low temperature evaporimeter, emulsification stoste case passes through the filter and is connected with the senior oxidation case of tertiary series connection, and the senior oxidation case of tertiary series connection is connected with reverse osmosis water treatment facilities, produces water pitcher, low temperature evaporimeter and is connected with reverse osmosis water treatment facilities respectively, produces water pitcher and is connected with low temperature evaporimeter.
2. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the filter includes that two active carbon adsorption of establishing ties filter the jar, is equipped with a valve between two active carbon adsorption filter jars, and the export of emulsification stoste case, the import of tertiary advanced oxidation case of establishing ties are connected with the filter respectively.
3. The system for reducing and treating emulsified waste liquid in mechanical processing according to claim 2, wherein: the first layer of active carbon adsorption filter tank is filled with columnar active carbon, the size of the columnar active carbon is 80-100 meshes, and the filling rate is more than or equal to 92%; the second layer of active carbon adsorption filter tank is filled with a mixture of columnar active carbon and quartz sand, the size of the mixture is 60-80 meshes, and the filling rate is more than or equal to 96%.
4. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the three-stage series advanced oxidation box comprises three photochemical oxidation reaction chambers which are sequentially connected in series, a paddle stirrer is arranged in each photochemical oxidation reaction chamber, each paddle stirrer comprises a motor and a mechanical stirring blade connected with the motor, and the rotating speed of each mechanical stirring blade is 70-100 rpm.
5. The system for reducing and treating emulsified waste liquid in mechanical processing according to claim 4, wherein: the photochemical oxidation reaction chamber comprises a chamber body, an ultraviolet light irradiation pipe and an oxygenation device, wherein the ultraviolet light irradiation pipe and the oxygenation device are arranged in the chamber body.
6. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the device also comprises a first small centrifugal pump and a second small centrifugal pump, wherein the first small centrifugal pump is connected between the three-stage series advanced oxidation box and the reverse osmosis water treatment equipment, and the second small centrifugal pump is connected between the reverse osmosis water treatment equipment and the low-temperature evaporator.
7. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the emulsion raw liquid box is a stainless steel box body with a plurality of spherical protrusions on the outer surface, a small automatic slag scraping device is arranged, the working part of the small automatic slag scraping device extends into the middle lower part inside the emulsion raw liquid box, and the operation cycle of the small automatic slag scraping device is 48-60 hours.
8. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the reverse osmosis water treatment equipment comprises three tubular membranes connected in parallel, wherein the tubular membranes are disc tubular reverse osmosis membranes, the length of each tubular membrane is 1350-1400 mm, the surface micropores of each tubular membrane are 0.5-10 nm, and the operating pressure of each tubular membrane is 0.55-0.6 MPa.
9. The machine-processed emulsified waste liquid reduction treatment system according to claim 1, wherein: the operating temperature of the low-temperature evaporator is 50-60 ℃.
10. A method for reducing an emulsified waste liquid by using the mechanical processing emulsified waste liquid reduction treatment system according to any one of claims 1 to 9, characterized by comprising the steps of:
the method comprises the following steps: the machining emulsified waste liquid flows through a waste liquid impurity discharge pipe to be collected and then enters an emulsified stock solution box to be stored, and metal scraps in the emulsified waste liquid are subjected to preliminary precipitation;
step two: the precipitated emulsified waste liquid enters a filter through an outlet of the emulsified stock solution tank through a pipeline, and flows into a three-stage serial advanced oxidation tank after being filtered;
step three: the three-stage series advanced oxidation box is used for carrying out oxidative decomposition on oil macromolecular compounds in the emulsified waste liquid, namely demulsification treatment, and the treated oil macromolecular compounds enter reverse osmosis water treatment equipment through a pipeline;
step four: reverse osmosis membrane treatment is carried out on liquid in the reverse osmosis water treatment equipment, clear water obtained after treatment enters a water production tank through a pipeline to realize recycling, and concentrated solution obtained after treatment enters a low-temperature evaporator to be subjected to step-by-step low-temperature evaporation concentration;
step five: and evaporating the concentrated solution in the low-temperature evaporator to form water vapor, feeding the water vapor into a water production tank through a pipeline, naturally cooling the water vapor in the water production tank to obtain clear water, and discharging the secondary concentrated solution from the low-temperature evaporator for recovery treatment.
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| CN108249614A (en) * | 2016-12-29 | 2018-07-06 | 南京源泉环保科技股份有限公司 | A kind of processing method and processing device of high-concentration emulsified liquid waste water |
| CN108689535A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of emulsifying liquid waste water integrated treatment unit |
| CN108865400A (en) * | 2018-09-13 | 2018-11-23 | 上海绿晟环保科技有限公司 | A kind of cutting waste fluid regeneration processing unit and technique |
| CN210339045U (en) * | 2019-06-17 | 2020-04-17 | 周玉强 | Stainless steel water tank board face module |
| CN212269759U (en) * | 2020-04-30 | 2021-01-01 | 江苏永葆环保科技有限公司 | Oily emulsification waste liquid treatment device |
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Application publication date: 20210615 |