CN108865400A - A kind of cutting waste fluid regeneration processing unit and technique - Google Patents
A kind of cutting waste fluid regeneration processing unit and technique Download PDFInfo
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- CN108865400A CN108865400A CN201811068651.9A CN201811068651A CN108865400A CN 108865400 A CN108865400 A CN 108865400A CN 201811068651 A CN201811068651 A CN 201811068651A CN 108865400 A CN108865400 A CN 108865400A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 160
- 239000002699 waste material Substances 0.000 title claims abstract description 159
- 239000012530 fluid Substances 0.000 title claims abstract description 156
- 238000012545 processing Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008929 regeneration Effects 0.000 title claims abstract description 33
- 238000011069 regeneration method Methods 0.000 title claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 57
- 230000003647 oxidation Effects 0.000 claims abstract description 56
- 230000003197 catalytic effect Effects 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000001699 photocatalysis Effects 0.000 claims abstract description 21
- 238000004220 aggregation Methods 0.000 claims abstract description 16
- 230000002776 aggregation Effects 0.000 claims abstract description 16
- 239000013618 particulate matter Substances 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000007146 photocatalysis Methods 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
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- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 3
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- 241000366676 Justicia pectoralis Species 0.000 description 1
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- 230000006978 adaptation Effects 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
-
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/04—Working-up used lubricants to recover useful products ; Cleaning aqueous emulsion based
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The invention discloses a kind of cutting waste fluid regeneration processing unit and technique, which includes：For making micron order oil droplet be condensed into the molecular collision aggregation cavity of big partial size oil droplet, the separation module for removing big partial size oil droplet and particulate matter and the ultraviolet catalytic oxidation module for sterilizing and recovery of performance is handled.The present invention has coupled molecular collision condensation technique, the separation of out-phase greasy dirt and the effect of particulate matter removal technology and photocatalytic advanced oxidation technology three, the machining sump oil in cutting waste fluid can not only be removed, improve the smelly phenomenon that blacks, and the performance indexes of cutting waste fluid can be significantly improved, both it can also can be required according to concentration of the user for cutting fluid with direct reuse, and add appropriate new liquid, the effective component lost in use process is filled up, is re-applied in cutting scene.
Description
Technical field
The present invention relates to cutting waste fluid processing technology fields, and in particular to a kind of cutting waste fluid regeneration processing unit and
Technique.
Background technique
Metalworking fluid is widely used in manufacturing, especially mechanical engineering industry, plays in process
Cooling, lubrication, anti-corrosion and clean effect.According to statistics, the metalworking fluid of annual nearly tens liters of the consumption in the whole world.It is cutting
In the use process of liquid, cutting fluid can occur deterioration and go bad and lose normal performance, generate a large amount of cutting waste fluids.Cutting waste fluid is such as
Fruit direct emission can do great damage to environment, and simple residual burning processing can bring high risks to atmospheric environment again,
And the expense of professional treatment factory and office reason cutting waste fluid is high.As country is increasingly stringenter environmental requirement, the environmental protection pressure of enterprise
Power is also increasing, and there is an urgent need to environmental protection, the processing method of the cutting waste fluid of low cost.
The rotten reason of deterioration, which occurs, for cutting fluid mainly has：
One, cutting fluid itself contains various mineral oil, and anaerobic bacteria, amphimicrobian can be bred under conditions of proper temperature
Bacterium, it is putrid and deteriorated on the one hand to will lead to cutting fluid, generates a large amount of organic monoacids, rustless property decline；On the other hand evil can be issued
Smelly smell；
Two, cutting fluid has localized hyperthermia in use, leads to cutting fluid high temperature polymerization, and generating a large amount of macromoleculars has
Machine object, greasy property decline；
Three, during machine tooling, the out-phase such as rail oil, gear oil grease can be leaked into constantly in cutting fluid, a part
Cutting fluid surface is swum in, a part is suspended in cutting fluid in the form of micron-sized small oil droplet, in two forms existing oil
Rouge will all accelerate cutting fluid deterioration in various degree, go bad.
Traditional cutting waste fluid processing method all concentrates on degradation treatment, and cutting waste fluid is made to reach the standard of discharge.But locate
Reason expense is high, and heavy economic pressures are brought to enterprise.Therefore, a kind of regeneration that can be realized cutting waste fluid time is explored
With the cost of reduction discharge cutting waste fluid, the green to reduce environmental pollution, low energy consumption, the processing method of environmental protection are particularly important.
Summary of the invention
The object of the present invention is to provide a kind of cutting waste fluid regeneration processing unit and techniques, and it is useless can not only to remove cutting
Machining sump oil in liquid improves the smelly phenomenon that blacks, and can significantly improve the performance indexes of cutting waste fluid.
In order to achieve the above objectives, the present invention provides a kind of cutting waste fluid regeneration processing units comprising：For making
Micron order oil droplet is condensed into the molecular collision aggregation cavity of big partial size oil droplet, for removing big partial size oil droplet and particulate matter
Separation module and for sterilize and recovery of performance processing ultraviolet catalytic oxidation module；
The molecular collision aggregation cavity includes：Shell cavity, the inlet that shell cavity bottom is set, setting
Leakage fluid dram at the top of shell cavity and the multiple baffles for being disposed alternately at inner wall at left and right sides of shell cavity；The baffle is used for
Form the channel that cutting waste fluid carries out zigzag flowing along inlet to leakage fluid dram direction；The shell cavity and baffle are hollow
Structure and internal connection, and the air inlet external gas source by being connected to shell cavity；The baffle lower surface is provided with oleophobic
Hydrophobic film layer；Stomata is distributed in the baffle upper surface, and the gas for providing gas source is aerated cutting waste fluid；
The separation module includes：Separating chamber and the porous oil that separating chamber is separated into the first cavity and the second cavity
Water separation membrane layer；Big partial size oil droplet and particulate matter are blocked in the after passing through for cutting waste fluid by the porous water-oil separating film layer
In one cavity；First cavity is connected to the leakage fluid dram of molecular collision aggregation cavity；
The ultraviolet catalytic oxidation module includes：The ultraviolet catalytic oxidation cavity that is connected to second cavity is set
Set ultraviolet catalytic oxidation chamber it is intracorporal it is multiple can launch wavelength be the ultraviolet lamp of 185nm and 254nm ultraviolet light and multiple
Photocatalysis membrana, the aeration tube being connected to ultraviolet catalytic oxidation cavity and the drain for the cutting waste fluid that processing is completed to be discharged
Pipe.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the inlet of the molecular collision aggregation cavity
It is connected with cutting waste fluid pond by the first pump；The second pump is provided between second cavity and ultraviolet catalytic oxidation cavity；
Third pump is provided on the drain pipe.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the angle of the baffle and horizontal plane is 10-15 degree.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the side wall of first cavity is provided with visual windows
And oil discharge outlet；Sewage draining exit is provided on first cavity and the second cavity.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the photocatalysis membrana is disposed alternately at ultraviolet catalytic
On the inner wall of two sides up and down of oxidation chamber, it is used to form the serpentine channel passed through for cutting waste fluid；The ultraviolet lamp is distributed in institute
It states in serpentine channel.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the ultraviolet catalytic oxidation module further includes setting
On ultraviolet catalytic oxidation cavity, the outlet tube being connected to cutting waste fluid pond is used for circular treatment cutting waste fluid.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the ultraviolet catalytic oxidation module further include with it is purple
The electric control gear of outer lamp electrical connection and the temperature sensing for being arranged in ultraviolet catalytic oxidation cavity and being electrically connected with electric control gear
Device；When cutting waste fluid temperature is higher than preset value, ultraviolet lamp described in the electric control system controls is closed；When cutting waste fluid temperature is low
When preset value, ultraviolet lamp described in the electric control system controls is opened.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the ultraviolet catalytic oxidation module further includes setting
PH value in the intracorporal pH sensor of ultraviolet catalytic oxidation chamber, for the cutting waste fluid in monitoring processing.
Above-mentioned cutting waste fluid regeneration processing unit, wherein the radiation intensity of the ultraviolet lamp is at least 130 μ W/
cm2；The distance between the ultraviolet lamp and photocatalysis membrana are no more than 5cm；Adjacent ultraviolet lamp spacing is within 20cm.
The present invention also provides a kind of cutting waste fluid regeneration treatment process comprising following steps：
Step 1：The micron order oil droplet being suspended in cutting waste fluid is condensed into big partial size oil droplet by molecular collision to float
Float on cutting waste fluid surface；
Step 2：To be removed through step 1 treated cutting waste fluid by porous water-oil separating film layer big partial size oil droplet and
Particulate matter；
Step 3：Using photocatalysis oxidation technique at through step 2 treated cutting waste fluid carries out sterilization and recovery of performance
Reason.
Compared with the existing technology, the invention has the advantages that：
Molecular collision condensation technique, the separation of out-phase greasy dirt and particulate matter removal technology and photocatalytic advanced oxidation skill are coupled
The effect of art three can not only remove the machining sump oil in cutting waste fluid, improve the smelly phenomenon that blacks, and can be obvious
The performance indexes of cutting waste fluid is improved, can also can both be required according to concentration of the user for cutting fluid with direct reuse,
Appropriate new liquid is added, the effective component lost in use process is filled up, is re-applied in cutting scene.
(1) sump oil in cutting waste fluid is rapidly and efficiently removed.
(2) photocatalytic advanced oxidation process can improve cutting waste fluid performance, overcome the conventional method of simple degradation COD
Disadvantage has both saved cost, also avoids environmental pollution, solves cutting waste fluid emission problem from the root.
(3) photocatalytic advanced oxidation processing method short processing time, treatment effeciency are high, applied widely, can pass through increase and decrease
Ultraviolet lamp quantity, adjusting uviol lamp intensity, processing mode etc. carry out flexible adaptation treatment scale.
(4) greasy property and rustless property of cutting fluid can be improved, and will not influence other performances of cutting waste fluid, it is real
Existing cutting waste fluid reuse.
(5) have it is safe, reliable, efficient, do not introduce additional chemical agent, be without secondary pollution, save the cost etc. it is numerous excellent
Point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cutting waste fluid regeneration processing unit of the present invention；
Fig. 2 is the structural schematic diagram of molecular collision aggregation cavity；
Fig. 3 is the impedance spectrum result figure of cutting waste fluid before and after the processing in embodiment one；
Fig. 4 is the polarization curve result figure of cutting waste fluid before and after the processing in embodiment one；
Fig. 5 is cutting waste fluid bacterial content in embodiment two with the trend chart of processing time；
Fig. 6 is the preceding anti-corrosion effect figure to material of cutting waste fluid processing in embodiment two；
Fig. 7 be in embodiment two after cutting waste fluid processing to the anti-corrosion effect figure of material.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the invention will be further described, these embodiments are merely to illustrate
The present invention is not limiting the scope of the invention.
As depicted in figs. 1 and 2, the present invention provides a kind of cutting waste fluid regeneration processing units comprising：For making
Micron order oil droplet is condensed into the molecular collision aggregation cavity of big partial size oil droplet, for removing big partial size oil droplet and particulate matter
Separation module and for sterilize and recovery of performance processing ultraviolet catalytic oxidation module.
The molecular collision aggregation cavity includes：Shell cavity 11 (can choose column construction) is arranged in cavity
The inlet 12 of 11 bottom of shell, the leakage fluid dram 13 that the top of shell cavity 11 is set and it is disposed alternately at shell cavity 11 or so
Multiple baffles 14 of two sides inner wall；The angle of the baffle 14 and horizontal plane is 10-15 degree；The baffle 14 is used to form cutting
Waste liquid carries out the channel of zigzag flowing along inlet 12 to 13 direction of leakage fluid dram；The shell cavity 11 and baffle 14 are hollow
Structure and internal connection, and 15 external gas source of air inlet by being connected to shell cavity 11；14 lower surface of baffle is in saw
Oleophobic hydrophobic film layer 16 is distributed in dentation；The cutting waste fluid that oleophobic hydrophobic film layer 16 can make to collide on baffle 14 will not be residual
It stays in above, cleaning, does not have to often cleaning.The effect of distribution of being serrated is to enhance the micron order oil droplet in cutting waste fluid
Mutual collision, be conducive to be collected as big partial size oil droplet, the density of big oil dripping is less than cutting waste fluid density, can float to automatically useless
On liquid surface, convenient for separation.100 microns to 500 microns of stomata is distributed in 14 upper surface of baffle, for providing gas source
Gas cutting waste fluid is aerated, be conducive to water-oil separating.
The separation module includes：Separating chamber and separating chamber is separated into the more of the first cavity 21 and the second cavity 22
Hole water-oil separating film layer 23；The porous water-oil separating film layer 23 is used for big partial size oil droplet and particulate matter after cutting waste fluid passes through
It is blocked in the first cavity 21；First cavity 21 is connected to the leakage fluid dram 13 of molecular collision aggregation cavity；Described point
The inlet 12 of son collision aggregation cavity is connect with cutting waste fluid pond by the first pump 17；The side wall of first cavity 21
It is provided with visual windows 24 and oil discharge outlet 25；Sewage draining exit 26 is provided on first cavity 21 and the second cavity 22.
The ultraviolet catalytic oxidation module includes：The ultraviolet catalytic oxidation cavity being connected to second cavity 22
31, be arranged in ultraviolet catalytic oxidation cavity 31 it is multiple can launch wavelength be 185nm and 254nm ultraviolet light ultraviolet lamp
It 32 and multiple photocatalysis membranas 40, the aeration tube 33 that is connected to ultraviolet catalytic oxidation cavity 31 and is cut for be discharged that processing completes
Cut the drain pipe 34 of waste liquid；The photocatalysis membrana 40 is disposed alternately at the two sides inner wall up and down of ultraviolet catalytic oxidation cavity 31
On, it is used to form the serpentine channel passed through for cutting waste fluid；The ultraviolet lamp 32 is distributed in the serpentine channel；It is described ultraviolet
The radiation intensity of lamp 32 is at least 130 μ W/cm2；The distance between the ultraviolet lamp 32 and photocatalysis membrana 40 are no more than 5cm；Phase
Adjacent 32 spacing of ultraviolet lamp is within 20cm.The second pump is provided between second cavity 22 and ultraviolet catalytic oxidation cavity 31
27；Third pump 35 is provided on the drain pipe 34.In one embodiment, the ultraviolet catalytic oxidation module further includes setting
On ultraviolet catalytic oxidation cavity 31, the outlet tube 39 being connected to cutting waste fluid pond is used for circular treatment cutting waste fluid.One
In embodiment, the ultraviolet catalytic oxidation module further includes the electric control gear 36 being electrically connected with ultraviolet lamp 32 and is arranged ultraviolet
The temperature sensor 37 being electrically connected in photochemical catalytic oxidation cavity 31 and with electric control gear 36；When cutting waste fluid temperature is higher than preset value
When, ultraviolet lamp 32 described in the electric control system controls is closed；When cutting waste fluid temperature is lower than preset value, the electric-control system control
The ultraviolet lamp 32 is made to open.In one embodiment, the ultraviolet catalytic oxidation module further includes being arranged in ultraviolet catalytic
PH sensor 38 in oxidation chamber 31, the pH value for the cutting waste fluid in monitoring processing.
There are two types of operating modes for the device, first is that circulating tupe online, second is that off-line type tupe.For
For a kind of operating mode, device powers on and compressed air (gas source) before opening.After opening power switch, first by the
One pump 17, cutting waste fluid enter molecular collision aggregation cavity by inlet 12, are agglomerated from bottom to top by molecular collision
During reaction cavity, under the bubble synergistic effect that the collision of lower surface zigzag baffle 14 and 14 upper surface of baffle are formed,
The micron order oil droplet being suspended in waste liquid is condensed into big partial size oil droplet because sufficiently colliding, and swims on waste liquid surface.
Cutting waste fluid from molecular collision aggregation cavity come out after, by leakage fluid dram 13 enter the first cavity 21.First chamber
It is separated between body 21 and the second cavity 22 by one layer of replaceable porous water-oil separating film layer 23, the cutting in the first cavity 21 is useless
After liquid is by porous water-oil separating film layer 23, the particulate matter etc. in the big partial size oil droplet and cutting waste fluid of floating can be blocked in
In first cavity 21.The waste oil being separated can carry out liquid level visualization by visual windows 24, reach a certain height to liquid level
Afterwards, it can be discharged from oil discharge outlet 25, avoid waste oil excessive, overflow device.The solid particulate matter isolated can pass through the first chamber
Sewage draining exit 26 on body 21 is periodically discharged.And filtered cutting waste fluid enters the second cavity 22, passes through the second pump 27 from second
22 lower part of cavity the cutting waste fluid in the second cavity 22 is pumped into ultraviolet catalytic oxidation cavity 31 carry out sterilization and performance repair
Multiple processing.Inlet 12 and outlet tube 39 are connected with cutting waste fluid pond, and the valve at drain pipe 34 is turned off.Cutting waste fluid enters
After ultraviolet catalytic oxidation cavity 31, serpentine channel is flowed through, after photocatalytic advanced oxidation regeneration processing, from outlet tube 39
Outflow, outlet tube 39 are connected with the cutting waste fluid pond of dress waste liquid, form circular treatment.Gas source is normally opened in this process, passes through
Aeration opening is aerated waste liquid, guarantees that waste liquid is sufficiently mixed, while providing enough O for reaction2。
Reaction temperature in ultraviolet catalytic oxidation cavity 31 is monitored by temperature sensor 37, control 50 DEG C with
Under, prevent cutting fluid because temperature is excessively high further deteriorate it is rotten.When temperature is more than 50 DEG C, electric-control system can automatically cut off ultraviolet
32 power supply of lamp, when temperature is lower than 40 DEG C, electric-control system can automatically open power supply and work on.PH value real-time detection is set simultaneously
Device carries out pH monitoring to the cutting waste fluid in processing.
Ultraviolet lamp 32 is made of two wave bands of 254nm and 185nm, and the main path of performance recovery has following three aspects：
First is that the ultraviolet light of 254nm wave band cooperates with the OH for generating and having Strong oxdiative ability with photocatalysis membrana 40, it being capable of degrading microorganism
The organic acid that metabolism generates, improves the pH value of cutting waste fluid, while keeping the macromolecular for polymerizeing generation because of high temperature deterioration organic
Object depolymerizes as small organic molecule, improves the greasy property of cutting waste fluid；Second is that the ultraviolet ionization of 185nm wave band generates
Ozone, cooperative photocatalysis advanced oxidation further kills microorganism, the sour gas that degrading microorganism generates, to solve
Cutting waste fluid blacks smelly problem；Third is that aeration increases O2The growth of content inhibition anaerobic bacteria.
In the ultraviolet catalytic oxidation cavity 31,32 power of ultraviolet lamp is 25W, and fluorescent tube length is 44cm, and ultraviolet light is defeated
Intensity is 260 μ W/cm out2.According to the size for the treatment of effeciency, it can suitably increase the power and fluorescent tube length of ultraviolet lamp 32, but
It is to ensure that the output intensity of ultraviolet light is at least 130 μ W/cm2.It is purple in view of the translucency and treatment effeciency of cutting waste fluid
The distance between outer lamp 32 and photocatalysis membrana 40 are no more than 5cm, and adjacent 32 spacing of ultraviolet lamp control is within 20cm.Ultraviolet light is urged
The reaction temperature changed in oxidation chamber 31 is monitored by temperature sensor 37, and control is at 50 DEG C hereinafter, temperature is more than 50 DEG C
When, electric-control system can automatically cut off 32 power supply of ultraviolet lamp, and when temperature is lower than 40 DEG C, electric-control system can automatically open power supply continuation
Work.PH value real-time detection apparatus is set simultaneously, pH monitoring is carried out to the cutting waste fluid in processing.
For processed offline mode, process flow is roughly the same, the difference is that, ultraviolet catalytic oxidation cavity
Valve at 31 outlet tube 39 and drain pipe 34 is closed, and the cutting after molecular collision aggregation cavity and separation module is passed through
Waste liquid is pumped into photochemical catalytic oxidation cavity, and after cutting waste fluid reaches certain volume, stopping is pumped into cutting waste fluid, carries out photocatalytic-oxidation
Change processing, processing time are generally 1~3h, specifically depending on the degradation of cutting waste fluid.
The present invention also provides a kind of cutting waste fluid regeneration treatment process comprising following steps：
Step 1：The micron order oil droplet being suspended in cutting waste fluid is condensed into big partial size oil droplet by molecular collision to float
Float on cutting waste fluid surface；
Step 2：It will treated that cutting waste fluid removes big partial size oil droplet by porous water-oil separating film layer 23 through step 1
And particulate matter；
Step 3：Using photocatalysis oxidation technique at through step 2 treated cutting waste fluid carries out sterilization and recovery of performance
Reason.
This technique has that safe, reliable, efficient, inexpensive, not introduce additional chemical agent, without secondary pollution etc. numerous excellent
Point.Cutting waste fluid can quickly be repaired and continue reuse, solve mechanical processing industry cutting waste fluid processing cost height and efficiency
Low problem is a kind of method of environmentally protective efficient processing cutting waste liquid.
Embodiment one
To be derived from the aluminium alloy cutting waste fluid at Shanghai Aerospace Precision Machinery Inst. scene for process object, cut by 50L
Waste liquid meter is handled using the device in the present invention.32 lower half portion wavelength of ultraviolet lamp is 254nm, and top half wavelength is
185nm.Power is 25W, and fluorescent tube length is 44cm, and ultraviolet light output intensity is 260 μ W/cm2.Ultraviolet lamp 32 and photocatalysis membrana 40
The distance between be 5mm, control the intracorporal temperature of reaction chamber at 50 DEG C hereinafter, the reaction time be 3h, processed offline method.To warp
Cutting waste fluid regeneration processing unit of the present invention treated cutting fluid carries out bacterial content, tapping torque, pH value and antirust
Property test.
Experimental result：
Bacterial content, tapping torque, pH value are as shown in table 1：
1. embodiment of table, one experimental result
Treated that bacterial content gradually decreases for the device of the invention as can be seen from Table 1, and after handling 3h, sterilizing rate reaches
99.92%.Cutting fluid tapping torque, which has, to be substantially reduced, and under normal circumstances, tapping torque is smaller, and the lubricity of cutting fluid is got over
It is good.From table 1 it follows that the tapping torque of cutting stoste is minimum, the cutting waste fluid after 3h is handled using the device of the invention
Tapping torque has than the cutting waste fluid that does not handle to be substantially reduced, although not reaching the greasy property of fresh cutting fluid,
It is still to be obviously improved.Treated, and cutting fluid pH value is also increased significantly, and mainly ultraviolet lamp 32 being capable of exciting light
Catalytic membrane 40 generates the OH with Strong oxdiative ability, is capable of the organic acid of degrading microorganism metabolism generation, keeps cutting useless
The pH value of liquid increases.PH increases the greasy property that can improve cutting fluid, while can also inhibit the growth of microorganism.
Fig. 3 and Fig. 4 is the electrochemical results of the antiseptic property of cutting fluid after evaluating processing using aluminium alloy.Impedance spectrum knot
Fruit (Fig. 3) is as can be seen that impedance arc radius of the aluminium alloy in cutting waste fluid is minimum, and is passing through at experimental provision of the invention
In cutting waste fluid after reason, the impedance arc radius of aluminium alloy, which has, significantly to be increased, with aluminium alloy in fresh cutting fluid
Impedance arc radius is close.Illustrating that impedance of the aluminium alloy in cutting waste fluid is smaller, cutting waste fluid has corrosiveness to aluminium alloy, and
Treated cutting waste fluid, antiseptic property are restored to level similar with fresh cutting fluid.Polarization curve result (Fig. 4) can be seen
Out, for aluminium alloy in cutting waste fluid, corrosion potential is -1.15V, after being handled using the device of the invention in cutting waste fluid, aluminium
The corrosion potential of alloy is -0.67V, has occurred and significantly shuffles, and in fresh cutting fluid, the corrosion potential of aluminium alloy
For -0.52V.Through in the device of the invention treated cutting waste fluid, although the corrosion potential of aluminium alloy is not so good as in new fresh-cut
The height in liquid is cut, but compares cutting waste fluid, has had and has significantly shuffled, treated, and cutting waste fluid antiseptic property is big
It is big to improve.
Embodiment two
It is process object to be derived from the waste liquid of cutting of Shanghai Zhongchuan Sanjing Boating Diesel Co., Ltd's plant site, by 50L
Cutting waste fluid meter repeats the experiment process step in embodiment one.Finally using colony counting method to the bacterium in cutting waste fluid
Content is assessed, and using the method impregnated in the cutting waste fluid of straight carbon steel after treatment come cutting waste fluid after assessment processing
Rustless property.
Experimental result：
Fig. 5 can be seen that the device of the invention treated cutting waste fluid bacterial content with the processing time extension gradually
It reduces, after handling 3h, sterilizing rate reaches 99.31%.
Fig. 6 reflects be soaked for a period of time in cutting waste fluid before treatment after, there is apparent spot corrosion on straight carbon steel surface, and
Fig. 7 reflects in the cutting waste fluid that is immersed in that treated that straight carbon steel surface is intact, and there is no spot corrosion, after illustrating processing
Cutting waste fluid rustless property be improved significantly.
Technique and device of the invention can effectively kill the bacterium in cutting waste fluid, and treated, and cutting waste fluid pH value has
Obvious to rise, close to fresh cutting fluid, while greasy property also greatly improves, antiseptic property be improved significantly.According to national standard
GB/T 6144-2010, the comparison of other main indicators of cutting waste fluid is as shown in table 2 before and after the processing.From table 2 it can be seen that this
The treatment process of invention will not impact other performances of cutting fluid.Through technique and device of the invention treated cutting
Liquid can also can be required according to concentration of the user for cutting fluid with direct reuse, be added appropriate new liquid, be filled up in use process
The effective component of loss re-applies in cutting scene, greatly reduces purchase cost and discharge fee, be a kind of efficient green
The cutting liquid processing method of environmental protection.
2. national standard GB/T 6144-2010 testing result of table
In conclusion present invention aims at from the angle of regeneration, propose a kind of completely new high efficiency, it is low at
Originally, the technique and device of processing cutting waste liquid without secondary pollution.The technique is using cutting fluid degradation mechanism as point of penetration, emphasis needle
To the acidification of cutting fluid caused by microbial growth, rustless property decline, black smelly, the reduction of greasy property and out-phase oil
Several aspects such as rouge doping carry out the regeneration processing of cutting waste fluid.The present invention has coupled molecular collision condensation technique, out-phase
Greasy dirt separation and the effect of particulate matter removal technology and photocatalytic advanced oxidation technology three, can not only remove in cutting waste fluid
It is machined sump oil, improves the smelly phenomenon that blacks, and the performance indexes of cutting waste fluid can be significantly improved, it both can be straight
Take back use, can also the user of concentration requirement according to to(for) cutting fluid, add appropriate new liquid, fill up having of losing in use process
Ingredient is imitated, is re-applied in cutting scene.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of cutting waste fluid regeneration processing unit, which is characterized in that it includes：For being condensed into micron order oil droplet greatly
The molecular collision aggregation cavity of partial size oil droplet, the separation module for removing big partial size oil droplet and particulate matter and for sterilizing
And the ultraviolet catalytic oxidation module of recovery of performance processing；
The molecular collision aggregation cavity includes：Shell cavity, is arranged in chamber the inlet that shell cavity bottom is arranged in
Leakage fluid dram at the top of body case and the multiple baffles for being disposed alternately at inner wall at left and right sides of shell cavity；The baffle is used to form
Cutting waste fluid carries out the channel of zigzag flowing along inlet to leakage fluid dram direction；The shell cavity and baffle are hollow structure
And internal connection, and the air inlet external gas source by being connected to shell cavity；It is hydrophobic that the baffle lower surface is provided with oleophobic
Film layer；Stomata is distributed in the baffle upper surface, and the gas for providing gas source is aerated cutting waste fluid；The separation
Module includes：Separating chamber and the porous water-oil separating film layer that separating chamber is separated into the first cavity and the second cavity；It is described
Porous water-oil separating film layer stops big partial size oil droplet and particulate matter in the first cavity after passing through for cutting waste fluid；Described
One cavity is connected to the leakage fluid dram of molecular collision aggregation cavity；
The ultraviolet catalytic oxidation module includes：The ultraviolet catalytic oxidation cavity that is connected to second cavity, setting exist
Ultraviolet catalytic oxidation chamber it is intracorporal it is multiple can launch wavelength be 185nm and 254nm ultraviolet light ultraviolet lamp and multiple light urge
Change film, the aeration tube being connected to ultraviolet catalytic oxidation cavity and the drain pipe for the cutting waste fluid that processing is completed to be discharged.
2. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the molecular collision cohesion is anti-
The inlet and cutting waste fluid pond for answering cavity are connected by the first pump；Between second cavity and ultraviolet catalytic oxidation cavity
It is provided with the second pump；Third pump is provided on the drain pipe.
3. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the baffle and horizontal plane
Angle is 10-15 degree.
4. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the side wall of first cavity
It is provided with visual windows and oil discharge outlet；Sewage draining exit is provided on first cavity and the second cavity.
5. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the photocatalysis membrana is alternately set
It sets on the inner wall of two sides up and down of ultraviolet catalytic oxidation cavity, is used to form the serpentine channel passed through for cutting waste fluid；It is described
Ultraviolet lamp is distributed in the serpentine channel.
6. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the ultraviolet catalytic oxidation
Module further includes being arranged on ultraviolet catalytic oxidation cavity, and the outlet tube being connected to cutting waste fluid pond is cut for circular treatment
Cut waste liquid.
7. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the ultraviolet catalytic oxidation
Module further includes that the electric control gear being electrically connected with ultraviolet lamp and setting are in ultraviolet catalytic oxidation cavity and electric with electric control gear
The temperature sensor of connection；When cutting waste fluid temperature is higher than preset value, ultraviolet lamp described in the electric control system controls is closed；When
When cutting waste fluid temperature is lower than preset value, ultraviolet lamp described in the electric control system controls is opened.
8. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the ultraviolet catalytic oxidation
Module further includes pH of the setting in the intracorporal pH sensor of ultraviolet catalytic oxidation chamber, for the cutting waste fluid in monitoring processing
Value.
9. cutting waste fluid regeneration processing unit as described in claim 1, which is characterized in that the radiation of the ultraviolet lamp is strong
Degree is at least 130 μ W/cm2；The distance between the ultraviolet lamp and photocatalysis membrana are no more than 5cm；Adjacent ultraviolet lamp spacing exists
Within 20cm.
10. a kind of cutting waste fluid regeneration treatment process, which is characterized in that it includes the following steps：
Step 1：The micron order oil droplet being suspended in cutting waste fluid is condensed into big partial size oil droplet by molecular collision to swim in
Cutting waste fluid surface；
Step 2：It will treated that cutting waste fluid removes big partial size oil droplet and particle by porous water-oil separating film layer through step 1
Object；
Step 3：It is handled using photocatalysis oxidation technique through step 2 treated cutting waste fluid carries out sterilization and recovery of performance.
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| CN112960838A (en) * | 2021-04-06 | 2021-06-15 | 江苏科技大学 | Reduction treatment system and treatment method for machining emulsified waste liquid |
| CN113847410A (en) * | 2021-08-13 | 2021-12-28 | 义乌吉利自动变速器有限公司 | Transmission ventilation structure, transmission and vehicle |
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