CN102390882B - System and method for reclaiming cold-roll emulsion liquid wastewater - Google Patents
System and method for reclaiming cold-roll emulsion liquid wastewater Download PDFInfo
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- CN102390882B CN102390882B CN 201110299347 CN201110299347A CN102390882B CN 102390882 B CN102390882 B CN 102390882B CN 201110299347 CN201110299347 CN 201110299347 CN 201110299347 A CN201110299347 A CN 201110299347A CN 102390882 B CN102390882 B CN 102390882B
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Abstract
The invention discloses a system and a method for reclaiming cold-roll emulsion liquid wastewater. The system comprises an iron steel cold-roll device, a collection pool, a vibrant film ultrafiltration device, and a in-between pool. The vibrant film ultrafiltration device comprises a casing, a film group and a motor, and a center transmission rod extends downwardly from the film group, so that the motor and a belt are matched to drive an eccentric block on the center transmission rod to generate centrifugal force to induce swing, the energy generated by the swinging drives the film group to vibrate through the center transmission rod, and shearing force generated by high-frequency vibration transmits in a sinusoidal way on the surface of the film in the film group, so as to efficiently solve the silting problem of the film in the film group, and realize simple and effective treatment to the cold-roll emulsion liquid wastewater. The system can separate clear liquid from thick oil continuously and effectively, the clear liquid is input into the in-between pool and supplemented with extra oil emulsifier to get the cold-roll emulsion liquid, and the cold-roll emulsion liquid is recycled to the iron steel cold-roll equipment. The whole wastewater treatment process does not need chemicals to be added therein, so that the recycling quality of the emulsion liquid is ensured.
Description
Technical field
The present invention relates to the sewage treatment equipment art, refer in particular to a kind of wastewater recycling system for cold rolling emulsion liquid and method.
Background technology
Useless cold-rolling emulsion is characterized in that mainly from efflux wastewater after the cooling water circulation use in the cold rolled sheet production process organic concentration is high, contains innage, and pollution intensity is large.Mainly be to use the inorganic polymer emulsion splitters such as polymerize aluminum chloride or bodied ferric sulfate to the existing method of the processing of emulsifying liquid waste water, its common drawback is that demulsification is poor, pharmaceutical quantities is large, produce a large amount of reluctant oxyhydroxide mud, increase the dissolved substance in the waste water, easily caused secondary pollution.For this situation, prior art improves to some extent to the treatment process of cold-rolling emulsion:
Application number is that 200510019081.0 Chinese invention patent discloses a kind of method and system thereof that processes cold rolling emulsion waste water.The mode that the method utilizes pottery membrane microfiltration device and membrane bioreactor to combine is processed cold rolling emulsion waste water, filtrate after treatment can qualified discharge or reuse, but the large process of the long floor space of this system flow is complicated, and the effluent quality (COD after processing, BOD, SS) unstable, and in the situation that impurity is removed ultra-filtration equipment fully dirty stifled phenomenon appears easily, cause routine maintenance management inconvenience, investment running cost is high, and general enterprises is difficult to bear.
Application number is that 200920083756.1 Chinese utility model patent discloses a kind of ecological green land, solved existing cold-rolling emulsion advanced wastewater treatment device complexity, investment, running cost high, complex process, management inconvenience, treatment effect are undesirable, the unsettled problem of draining water quality.Main kind of the ecological green land that is implanted with pedosphere, enzymatic living beings packing layer, rough coal slag blanket and the clay compacted lift of anti-pollution plant that utilizes carries out the comprehensive regulation to cold-rolling emulsion waste water.Although the ecological green land less investment, running cost is low, reach preferably treatment effect, will be controlled each layer processing unit in the treatment system.Although it is good that ecological method is processed treatment effect, treatment cycle is relatively long, and is inadequate concerning efficient than the processing of big yield, and floor space is large.
In sum, utilize present equipment and method still can not simply and effectively recycle processing to cold-rolling emulsion waste water, treatment effect is not good.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose provides a kind of wastewater recycling system for cold rolling emulsion liquid and method, its can effectively solve utilize existing installation and method can not be simply and effectively to cold-rolling emulsion waste water is processed, treatment effect is not good problem.
For achieving the above object, the present invention adopts following technical scheme:
A kind of wastewater recycling system for cold rolling emulsion liquid includes iron and steel cold-rolling equipment, collecting tank, vibrations membrane ultrafiltration device and intermediate pool; Wherein
This collecting tank is used for collecting the cold-rolling emulsion waste water from the output of iron and steel cold-rolling equipment, and the input aperture of this collecting tank is communicated with the delivery port of iron and steel cold-rolling equipment;
This vibrations membrane ultrafiltration device is used for the waste water of collecting tank output is carried out filtering separation formation clear liquid and dense oil, and this vibrations membrane ultrafiltration device includes casing and is installed on casing interior film group and motor; This film group has stoste input aperture, clear liquid delivery port and dense oil outlet; The delivery port of aforementioned collecting tank is communicated with this stoste input aperture by fresh feed pump, and this dense oil outlet is communicated with extraneous; This film group is extended the center driving bar that is useful on the vibrations of drive film group downwards, and the lower end of this center driving bar is provided with eccentric block and the first flange, and this first flange is positioned at the below of eccentric block; This motor is positioned at the below of film group, and the output terminal of this motor is provided with the second flange, and this second flange is flexible coupling by belt and the first flange;
This intermediate pool is used for collecting aforementioned clear liquid and replenishes the adding emulsifier, and the input aperture of this intermediate pool is communicated with aforementioned clear liquid delivery port, and the delivery port of this intermediate pool is communicated with the input aperture of aforementioned iron and steel cold-rolling equipment.
As a kind of preferred version, described film group includes train wheel bridge, lower plate, water producing pipe and at least one filtering membrane unit that is fixedly clamped between train wheel bridge and lower plate;
Be provided with two aforementioned stoste input apertures and an aforementioned clear liquid delivery port on this train wheel bridge, this two stoste input aperture is respectively the first stoste input aperture and the second stoste input aperture, this the first stoste input aperture and the second stoste input aperture are mutually symmetrical and are arranged at outside the two relative side of clear liquid delivery port, this water producing pipe is fixedly clamped between train wheel bridge and lower plate, the lower end of water producing pipe is airtight, and the upper end of water producing pipe is communicated with this clear liquid delivery port;
Be provided with two aforementioned dense oil outlets on this lower plate, this two dense oil outlet is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
This filtering membrane unit includes from lower to upper superimposed the first standard film part, the second standard film part, the 3rd standard film part and the 4th standard film part together; Each standard film part is plates and being set in outside the water producing pipe ringwise all, and each standard film part has included pallet and diaphragm, and this diaphragm is folded the upper surface in pallet, and the periphery inboard on surface is provided with groove, this groove and water producing pipe internal communication on this pallet;
This first standard film part is ditrysian type standard film part, is provided with two first through holes on it, and this two first through hole is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
This second standard film part is monotrysian type standard film part, is provided with one second through hole on it, and this second through hole is positioned on the axis of aforementioned the second stoste input aperture;
The 3rd standard film part is ditrysian type standard film part, is provided with two third through-holes on it, and this two third through-hole is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
The 4th standard film part is monotrysian type standard film part, is provided with a fourth hole on it, and this fourth hole is positioned on the axis of aforementioned the first stoste input aperture;
In addition, the upper surface of the diaphragm of this each standard film part is provided with outer shroud and interior ring, and aforementioned each through hole is on the zone between outer shroud and the interior ring.
As a kind of preferred version, be connected and fixed by a plurality of bolts between described train wheel bridge and the lower plate, these a plurality of bolts are distributed in the periphery of train wheel bridge, these a plurality of screw bolt passes train wheel bridges and filtering membrane unit and be connected and fixed with lower plate.
As a kind of preferred version, be provided with a plurality of aforementioned grooves on the pallet of described each standard film part, these a plurality of grooves radially distribute centered by the middle part of pallet.
As a kind of preferred version, two aforementioned eccentric blocks are set on the described center driving bar, but each eccentric block up-down adjustment and rotatable adjusting be installed on the center driving bar.
As a kind of preferred version, described eccentric block integral body is the semi-disc shape, be provided with the axis hole that passes for the center driving bar on this eccentric block, this eccentric block is provided with two arc notch near the side of axis hole, be formed with an arc convex between this arc notch, be provided with screw on this arc convex, this screw is communicated with axis hole.
As a kind of preferred version, described casing includes upper casing and base, and the aforementioned films group is sealed closely to be wrapped in the upper casing, and aforementioned motor is installed in the base, is connected with a plurality of springs between this upper casing and the base.
As a kind of preferred version, be folded with snubber block between the outside wall surface of described motor and the inner-wall surface of base, and the bottom of this base further is provided with the wheel of capable of regulating height.
As a kind of preferred version, described fresh feed pump is Non-blinding pump.
A kind of cold-rolling emulsion waste water reclamation utilizes method, and the step that comprises has
(1) the cold-rolling emulsion waste water that the iron and steel cold-rolling equipment is produced is input in the collecting tank;
(2) utilize fresh feed pump that waste water in the collecting tank is pumped in the vibrations membrane ultrafiltration device, and cooperation utilizes motor driving to rotate by the eccentric block that belt is flexible coupling, the centrifugal force that produces when the eccentric block high speed rotating can cause the top of vibrations membrane ultrafiltration device and wave, the energy that waves generation is sent on the center driving bar, so that this center driving bar impels film group high-frequency vibration, thereby so that the waste water filtering separation that pumps in the vibrations membrane ultrafiltration device obtains clear liquid and dense oil, this clear liquid is imported in the intermediate pool, and this dense oil discharges;
(3) replenish the adding emulsifier toward intermediate pool, so that the clear liquid in the intermediate pool forms cold-rolling emulsion after again processing, cold-rolling emulsion is back to use in the iron and steel cold-rolling equipment.
The present invention compared with prior art has obvious advantage and beneficial effect, particularly, and as shown from the above technical solution:
One, utilizing the centrifugal force of the eccentric block rotation generation on motor and the belt drive center driving bar to cause by cooperation waves, the energy that waves generation impels the vibrations of film group by the center driving bar, when the turn up of motor extremely shakes environment need frequency altogether, the amplitude of film group vibrations reaches to maximum, the shearing force that high-frequency vibration produces is propagated with sinusoidal manner via the membrane surface in the film group, thereby effectively solve the problem of silting up of film group interior diaphragm, opposing film pollution capacity is stronger, realized simply and effectively cold-rolling emulsion waste water being recycled processing, better processing effect, processing cost are also lower; And, cooperate and utilize iron and steel cold-rolling equipment, collecting tank and intermediate pool to form wastewater recycling system for cold rolling emulsion liquid, with continuous and effective isolate clear liquid and dense oil, but clear liquid is transfused to intermediate pool and adds the cold-rolling emulsion that emulsifier has obtained reuse through replenishing, these cold-rolling emulsion reuses are to the iron and steel cold-rolling equipment, and whole wastewater treatment process does not need to add chemical, has guaranteed the reuse quality of emulsion.
Two, by utilizing the superimposed filtering membrane unit that forms together of the first standard film part, the second standard film part, the 3rd standard film part and the 4th standard film part, and cooperation utilizes the first standard film part and the 3rd standard film part to be monotrysian type standard film part for ditrysian type standard film part, this second standard film part and the 4th standard film part, so that dense oil S-type flowing in the film group, thereby increased the effective filtration area of unit space upper diaphragm, can enlarge more simply the processing power of cold-rolling emulsion waste water.
Three, by be provided with former water input and clear liquid delivery port on train wheel bridge, form the design of upper water inlet, upper water-out with this, the design of upper water-out is so that the bubble that vibrations membrane ultrafiltration device produces in sepn process is in time got rid of favourable protection diaphragm.
Four, by on the center driving bar, being provided with two eccentric blocks, but be arranged on the center driving bar with utilizing this two eccentric blocks up-down adjustment and rotatable adjusting, but so that two its overlapping areas of eccentric block flexible, to reach the purpose of best vibration amplitude, whole eccentric block is the semi-disc shape, and be provided with arc notch and arc convex on eccentric block, the eccentric force in the time of can strengthening high speed rotating reduces noise, keeps the stability of single rotating manner.
For more clearly setting forth constitutional features of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the principle of work schematic diagram of the present invention's preferred embodiment;
Fig. 2 is the assembling perspective view of the casing of vibrations membrane ultrafiltration device in the present invention's the preferred embodiment;
Fig. 3 is the assembling perspective view of the casing inside of vibrations membrane ultrafiltration device in the present invention's the preferred embodiment;
Fig. 4 is the enlarged diagram of eccentric block in the present invention's the preferred embodiment;
Fig. 5 is the assembling schematic perspective view of film group in the present invention's the preferred embodiment;
Fig. 6 is the partial exploded view of film group in the present invention's the preferred embodiment;
Fig. 7 is the schematic cross-section of film group in the present invention's the preferred embodiment.
The accompanying drawing identifier declaration:
10, iron and steel cold-rolling equipment 20, collecting tank
30, vibrations membrane ultrafiltration device 31, casing
311, upper casing 312, base
313, spring 314, wheel
32, film group 321, train wheel bridge
322, lower plate 323, water producing pipe
324, filtering membrane unit 3241, the first standard film part
3242, the second standard film part 3243, the 3rd standard film part
3244, the 4th standard film part 33, motor
34, center driving bar 35, eccentric block
351, axis hole 352, arc notch
353, arc convex 354, screw
36, the first flange 37, the second flange
38, belt 39, snubber block
301, the first stoste input aperture 302, the second stoste input aperture
303, clear liquid delivery port 304, groove
305, dense oil outlet 306, bolt
307, pallet 308, diaphragm
3011, groove 3012, the first through hole
3013, the second through hole 3014, third through-hole
3015, fourth hole 3016, outer shroud
3017, interior ring 40, intermediate pool.
Embodiment
Please refer to Fig. 1 to shown in Figure 7, the concrete structure that it has demonstrated the present invention's preferred embodiment includes iron and steel cold-rolling equipment 10, collecting tank 20, vibrations membrane ultrafiltration device (UF) 30 and intermediate pool 40.
Wherein, as shown in Figure 1, the input aperture that this collecting tank 20 is used for collecting from the cold-rolling emulsion wastewater collection pond 20 that iron and steel cold-rolling equipment 10 is exported is communicated with the delivery port of aforementioned iron and steel cold-rolling equipment 10.
This vibrations membrane ultrafiltration device (UF) 30 is used for cold-rolling emulsion waste water to collecting tank 20 outputs to carry out filtering separation and forms clear liquid and dense oil, and it includes casing 31 and is installed on film group 32 and motor 33 in this casing 31.
Wherein, this casing 31 is so that move in the casing of sealing when processing waste water, and noise is low, and is stable, effectively protected operator's safety; As shown in Figure 2, this casing 31 includes upper casing 311 and base 312; This upper casing 311 is glass fibre steel matter, upper casing 311 closely wraps aforementioned films group 32 is sealed, significant sealing affection, guarantee the stability of film group 32 in high-frequency vibration, and prevent that the waste water that the improper mishaies such as perforate membrane that cause of manual operation cause from outflowing, the waste water that effectively dams makes operator's safety obtain effective guarantee; This motor 33 is installed in the base 312; And, connect a plurality of springs 313 between this upper casing 311 and the base 312, utilize these a plurality of springs 313 with upper casing 311 be supported in base 312 directly over, both that film group 32 is fixing with this, guarantee the equilibrium conditions of vibrations membrane ultrafiltration devices (UF) 30 operations, again can be well separate with static base 312, reach the purpose of damping; In addition, the bottom of this base 312 further is provided with the adjustable wheel 314 of height, this wheel 314 is used to provide the movability of this vibrations membrane ultrafiltration device (UF) 30 and the stability in when running, after having selected placement location, the gear-like of twisting wheel 314 central authorities is regulated the fixing feet of pulling wheel 314 and is unloaded, whether then utilize horizontal reference point on the support of wheel 314 to measure casing 31 has reached to level, wheel 314 by this capable of regulating height, vibrations membrane ultrafiltration devices (UF) 30 are reached to horizontality, guarantee vibrations membrane ultrafiltration device (UF) 30 normal operations in overclocking vibration, and adapted to more complicated installation and operation environment.
As shown in Figure 3, this film group 32 is extended downwards center driving bar 34, this center driving bar 34 is used for driving 32 vibrations of film group, than other waste water vibrations separating devices, the center driving bar 34 among the present invention is shorter, and selects the high tenacity steel, make vibrations pass to rapidly film group 32, strengthened its operation usefulness, guaranteed that film group 32 high-frequency vibrations require and security of system, outstanding to the separating effect of waste water.The lower end of this center driving bar 34 is provided with eccentric block 35 and the first flange 36.In the present embodiment, be provided with two eccentric blocks 35 on this center driving bar 34, but each eccentric block 35 up-down adjustment and rotatable adjusting ground, as shown in Figure 4, each eccentric block 35 is the semi-disc shape, be provided with the axis hole 351 that passes for center driving bar 34 on this eccentric block 35, this eccentric block 35 is provided with two arc notch 352 near on the side of axis hole 351, be formed with an arc convex 353 between this two arc notch 352, be provided with screw 354 on this arc convex 353, this screw 354 is communicated with axis hole 351, by center driving bar 34 is passed axis hole 351, utilize screw to pass screw 354 eccentric block 35 firmly be fixed on the center driving bar 34, but with this so that two eccentric blocks its overlapping area of 35 flexible and relative height, to reach the purpose of best vibration amplitude, and because whole eccentric block 35 is the semi-disc shape, utilize arc notch 352 and arc convex 353, the eccentric block 35 in the time of can strengthening high speed rotating reduces noise, keeps the stability of single rotating manner; In addition, in the process of processing waste water, the vibrating effect of single eccentric block 35 can't satisfy the separation requirement of overclocking vibration film with common electric machine, and use more powerful motor just to mean that also quality is larger, need the energy of consumption also more, the present invention is in order to improve capacity usage ratio, increase the high-frequency vibration frequency, use two eccentric blocks 35 independently to be installed on the center driving bar 34, and can carry out manual regulation to it, by the relative position variation of two eccentric blocks 35 and the variable frequency control of motor 33, significantly improved the vibration frequency of vibrations membrane ultrafiltration device (UF) 30, film group 32 when being separated, waste water filtering is discharged dense oil rapidly, avoid alluvial and the obstruction of fenestra, by a series of actual verification, reach the method for vibration frequency among the present invention than simple raising motor rotary speed, aspect energy consumption, reduce electricity consumption 45%～55% than general technology; Simultaneously, this technology can effectively reduce motor 33 wearing and tearing, reduces the heating of motor 33, and improved more than 30% the work-ing life of motor 33.This first flange 36 is positioned at the below of aforementioned two eccentric blocks 35.
This motor 33 is positioned at the below of film group 32, the output terminal of motor 33 is provided with the second flange 37, this second flange 37 is flexible coupling by belt 38 and the first flange 36, the outside wall surface of this motor 33 is provided with snubber block 39, motor 33 is being installed on base 312 when interior, this snubber block 39 is clamped between the inner-wall surface of motor 33 outside wall surface and base 312, to play cushioning effect.This motor 33 is the motor of variable frequency, its Main Function system excites vibrations, when high speed rotating, the centrifugal force that motor 33 drives the eccentric block 35 rotation generations on the center driving bar 34 can cause waving of vibrations membrane ultrafiltration device (UF) 30 tops, and the energy that waves generation impels 32 vibrations of film group by center driving bar 34.When the turn up of motor 33 extremely shakes environment need frequency altogether, the amplitude of film group 32 vibrations can reach to maximum, continue to increase the opposite amplitude that only can reduce 32 vibrations of film group of rotating speed of motor 33, generally speaking, operation can be under the maximum value of vibration amplitude, the pulling force that is born to reduce center driving bar 34, the work-ing life of center of serve transmission rod 34.
To shown in Figure 7, this film group 32 includes train wheel bridge 321, lower plate 322, water producing pipe 323 and at least one filtering membrane unit 324 that is fixedly clamped between train wheel bridge 321 and lower plate 322 such as Fig. 5; Be provided with one first stoste input aperture 301 on this train wheel bridge 321, one second stoste input aperture 302 and a clear liquid delivery port 303, this the first stoste input aperture 301 and the second stoste input aperture 302 are mutually symmetrical and are arranged at outside the two relative side of clear liquid delivery port 303, the stoste input aperture that forms vibrations membrane ultrafiltration devices (UF) 30 is converged in this first stoste input aperture 301 and the second stoste input aperture 302, the delivery port of aforementioned collecting tank 20 is communicated with the stoste input aperture of this vibrations membrane ultrafiltration device (UF) 30 by fresh feed pump, this fresh feed pump is selected Non-blinding pump, they can be by dirt and the foreign material of larger particle diameter, avoid the problems such as cavitation damage and water, for operator bring great convenience, and vibratory noise is little, electric machine temperature rise is low, continuous operation time is long, smooth performance, environmentally safe, simultaneously, this fresh feed pump flow is large, easily Operation and maintenance, this fresh feed pump is equipped with the motor of two horsepowers; This water producing pipe 323 is fixedly clamped between train wheel bridge 321 and lower plate 322, the lower end of water producing pipe 323 is airtight, the upper end of water producing pipe 323 is communicated with this clear liquid delivery port 303, and the wall of this water producing pipe 323 offers the groove 304 that is communicated with water producing pipe 323 inside, and this clear liquid delivery port 303 is communicated with the input aperture of aforementioned intermediate pool 40; Be provided with two dense oil outlets 305 on this lower plate 322, this two dense oil outlet 305 is corresponding being positioned on the axis of aforementioned the first stoste input aperture 301 and the second stoste input aperture 302 respectively, this two dense oil outlet 305 converges the dense oil outlet that forms film group 32, the dense oil outlet of this film group 32 is in communication with the outside, in order to dense oil is discharged; And, be connected and fixed by a plurality of bolts 306 between this train wheel bridge 321 and the lower plate 322, these a plurality of bolts 306 are distributed in the periphery of train wheel bridge 321, these a plurality of bolts 306 pass successively train wheel bridge 321 and filtering membrane unit 324 and are connected and fixed with lower plate 322, first the bolt 306 of the train wheel bridge 321 of film group 32 is tightened to first 35 pounds in use, be tightened to again 45 pounds, again large-scale mother Luo in the center on the clamping plate 321 on the film group 32 is tightened up, the scheduling of tightening up operation is the 1st hour of bringing into use, the 4th hour, carried out in the 8th hour and the 24th hour, this tightens up operation and then carries out on demand afterwards, under overclocking vibration, separate the efficient stable of waste water by closely knit like this structure assurance film group 32, and make things convenient for the replacing of filtering membrane unit 324.
This filtering membrane unit 324 includes from lower to upper superimposed the first standard film part 3241, the second standard film part 3242, the 3rd standard film part 3243 and the 4th standard film part 3244 together; Each standard film part is plates and being set in outside the water producing pipe 323 ringwise all, each standard film part has included pallet 307 and diaphragm 308, this diaphragm 308 is folded in the upper surface of pallet 307, the periphery inboard on surface is provided with groove 3011 on this pallet 307, this groove 3011 by the groove 304 of aforementioned water producing pipe 323 with water producing pipe 323 internal communication, be provided with a plurality of forward recess 3011 on the pallet 307 of each standard film part, these a plurality of grooves 3011 radially distribute centered by the middle part of pallet 307; This first standard film part 3241 is ditrysian type standard film part, is provided with two first through holes 3012 on it, and this two first through hole 3012 is corresponding being positioned on the axis of aforementioned the first stoste input aperture 301 and the second stoste input aperture 302 respectively; This second standard film part 3242 is monotrysian type standard film part, is provided with one second through hole 3013 on it, and this second through hole 3013 is positioned on the axis of aforementioned the second stoste input aperture 302; The 3rd standard film part 3243 is ditrysian type standard film part, is provided with two third through-holes 3014 on it, and this two third through-hole 3014 is corresponding being positioned on the axis of aforementioned the first stoste input aperture 301 and the second stoste input aperture 302 respectively; The 4th standard film part 3244 is monotrysian type standard film part, is provided with a fourth hole 3015 on it, and this fourth hole 3015 is positioned on the axis of aforementioned the first stoste input aperture 301; In addition, the upper surface of the diaphragm 308 of this each standard film part is provided with outer shroud 3016 and interior ring 3017, this outer shroud 3016 and interior ring 3017 are sealing-ring, utilize outer shroud 3016 to guarantee the sealing effectiveness of film group 32, also can avoid dense oil outflow to operator's injury, utilize and should dense oil and clear liquid can be separated by interior ring 3017, prevent that clear liquid is subject to secondary pollution, aforementioned each through hole is on the zone between outer shroud 3016 and the interior ring 3017.
And, further including the master control system (not shown), this master control system comprises power controling box, pressure sensitive device, visualized operation system and data logging system.Power controling box with start and decommission, amplitude of vibration adjusting, temperature detection device, the control of dense fuel tap door auto-switch time, feed pressure control and warning system.According to the outer assembly of the optional quota of the needs of different industrial conditions: the device of pressure-controlling, clear liquid flow control, control feeding temperature and system data self-recording unit etc.Whole power controling box compact construction, the operation of the visualization display such as temperature, pressure, flow, System Operation time, integral layout had both met aesthetic requirement, again handled easily management, and design warning and scram button, special-purpose key is installed, is avoided the improper operation of non-technical personnel, the operation of assurance system and personnel's safety.Simultaneously, the joint that also has power supply and connecting sensor in the cabinet back side and the bottom of master control system, the visually operation of Controlling System.When spying out the vibrating motor controller any mistake is arranged, system is immediately shut-down operation just, and shows the numbering that makes a mistake at fluorescent screen.As long as with reference to the message of wrong numbering representative, just can learn the reason of problem, the operation of after dealing with problems, can again starting shooting.If the fresh feed pump motor load is overweight, motor starter can stop motor operated automatically, can restart by restarting button.
Usefulness of the present invention is only independently controlled parameter by two and is controlled: shearing and pressure.Shearing is to produce through vibration membrane group 32, can use the amplitude of vibration adjusting on control panel to pull, and regulates the amplitude of vibrations, controls the size of vibration amplitude by the speed of motor 33 rotations.Pressure is the power from fresh feed pump.Independently control parameter although shearing and pressure are two, make system bring into play its powerful performance and normal running, both are indispensable.Will be easily and operate reliably native system, it is to keep it in mind that an emphasis is arranged, and when shaking exactly pressure must be arranged simultaneously, and must shake simultaneously when pressure is arranged.When these vibrations membrane ultrafiltration device (UF) 30 vibrations, film group 32 diaphragm 308 inside needs certain pressure also can keep the home position in vibrations, do not have pressure if only have vibrations, may cause like this diaphragm 308 breakages, lost the effect of filtering.On the contrary, if it is moving that system only has feed liquor not arrhea under the situation that does not have vibrations, keep only one period very short time, because lacked the words of vibrations, when feedstock solution was flowed through diaphragm 308 surface, the material of failing to pass diaphragm 308 can stop and be accumulated on the surface of diaphragm 308, micropore on the diaphragm 308 is caused silt up, the speed that these barriers form is very fast, can make diaphragm 308 lose its usefulness in very short.Therefore, should be noted that during system works: when operating pressure is less than 30psi, system forbids vibrations; When system's vibration amplitude is less than 1/4 inch, can not operation arranged under the environment of pressure above 20 seconds; When first time when operating system, do preliminary examination with clear water, when cleaning, use clear water Qing Xi Xi System under unusual low pressure De Qing Condition, and each part part of the Inner of system to clean all.
In addition, this intermediate pool 40 is used for collecting the clear liquid of aforementioned vibrations membrane ultrafiltration device (UF) 30 outputs and replenishes the adding emulsifier clear liquid is processed again, the delivery port of this intermediate pool 40 is communicated with the input aperture of aforementioned iron and steel cold-rolling equipment 10, clear liquid after processing with this so that through emulsifier is back to reuse in the iron and steel cold-rolling equipment 10, thereby the less quantity discharged of waste water has reduced cost.
The working process that the present embodiment is described in detail in detail is as follows:
(1) the cold-rolling emulsion waste water that iron and steel cold-rolling equipment 10 is produced inputs in the collecting tank 20 keeps in.
(2) utilize fresh feed pump that the cold-rolling emulsion waste water in the collecting tank 20 is pumped in the vibrations membrane ultrafiltration devices (UF) 30, waste water is divided into two-way and is input to film group 32 from the first stoste input aperture 301 and the second stoste input aperture 302 respectively, simultaneously, this motor 33 rotates and drives the eccentric block 35 that is flexible coupling by belt 38 and rotates, the centrifugal force that this eccentric block 35 generates when high speed rotating can cause vibrations membrane ultrafiltration device (UF) 30 tops and wave, the energy that waves generation is sent on the center driving bar 34, impel film group 32 high-frequency vibrations on center driving bar 34, the shearing force that vibrations produce is propagated with sinusoidal manner via diaphragm 308 surfaces, although feed pressure constantly pumps into waste water in the film group 32 via fresh feed pump and produces, but shearing force can be discharged the solid substance that stops on diaphragm 308 surfaces simultaneously from dense oil outlet 305, can not be deposited on the surface of diaphragm 308, make system under high pressure De Huan Base-on-environment, continuous and effective isolate 90% clear liquid and 10% dense oil.10% dense oil outwards discharges output by the dense oily trunnion of film group 32 belows, and simultaneously, 90% clear liquid extrudes from water producing pipe 323, and this clear liquid of 90% is input in the intermediate pool 40 keeps in.
And waste water flows at the upper surface of the diaphragm 308 of each standard film part, and clear liquid sees through diaphragm 308 and flows in the groove 3011 of pallet 307 upper surfaces, and flows in the water producing pipe 323, to obtain clear liquid by groove 304; And the diaphragm 308 of the standard film part of one deck filters under the waste water of the diaphragm 308 upper surfaces through hole by aforementioned correspondence flows into, thus, flowing of dense oil just had certain direction, whole film group 32 is according to aforementioned sequential cascade, dense oil just is flowing of " S " type, increased the effective filtration area of unit space upper diaphragm, to enlarge more simply processing power.And waste water contacts with diaphragm 308 always in whole flow process, and clear liquid is flowed out by train wheel bridge 321 from the water producing pipe 323 in the middle of the diaphragm 308, and dense oil is separated to come, and discharges from the dense oil outlet 305 of film group 32 sides; Because whole film group 32 compact constructions, the pressure-losses is little, and clear liquid and dense oil need not to pressurize again and can discharge, for energy consumption has been saved in the separation of waste water greatly.
(3) replenish the adding emulsifier in intermediate pool 40, utilize emulsifier that clear liquid is carried out further allocation processing and form cold-rolling emulsion, these cold-rolling emulsions are imported into and carry out reuse in the iron and steel cold-rolling equipment 10.
Design focal point of the present invention is: at first, utilizing the centrifugal force of the eccentric block rotation generation on motor and the belt drive center driving bar to cause by cooperation waves, the energy that waves generation impels the vibrations of film group by the center driving bar, when the turn up of motor extremely shakes environment need frequency altogether, the amplitude of film group vibrations reaches to maximum, the shearing force that high-frequency vibration produces is propagated with sinusoidal manner via the membrane surface in the film group, thereby effectively solve the problem of silting up of film group interior diaphragm, opposing film pollution capacity is stronger, realized simply and effectively cold-rolling emulsion waste water being recycled processing, better processing effect, processing cost are also lower; And, cooperate and utilize iron and steel cold-rolling equipment, collecting tank and intermediate pool to form wastewater recycling system for cold rolling emulsion liquid, with continuous and effective isolate clear liquid and dense oil, but clear liquid is transfused to intermediate pool and adds the cold-rolling emulsion that emulsifier has obtained reuse through replenishing, these cold-rolling emulsion reuses are to the iron and steel cold-rolling equipment, and whole wastewater treatment process does not need to add chemical, has guaranteed the reuse quality of emulsion.Secondly, by utilizing the superimposed filtering membrane unit that forms together of the first standard film part, the second standard film part, the 3rd standard film part and the 4th standard film part, and cooperation utilizes the first standard film part and the 3rd standard film part to be monotrysian type standard film part for ditrysian type standard film part, this second standard film part and the 4th standard film part, so that dense oil S-type flowing in the film group, thereby increased the effective filtration area of unit space upper diaphragm, can enlarge more simply the processing power of cold-rolling emulsion waste water.Moreover, by on train wheel bridge, being provided with former water input and clear liquid delivery port, forming the design of upper water inlet, upper water-out with this, the design of upper water-out is so that the bubble that vibrations membrane ultrafiltration device produces in sepn process is in time got rid of favourable protection diaphragm.At last, by on the center driving bar, being provided with two eccentric blocks, but be arranged on the center driving bar with utilizing this two eccentric blocks up-down adjustment and rotatable adjusting, but so that two its overlapping areas of eccentric block flexible, to reach the purpose of best vibration amplitude, whole eccentric block is the semi-disc shape, and is provided with arc notch and arc convex on eccentric block, eccentric force in the time of can strengthening high speed rotating reduces noise, keeps the stability of single rotating manner.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, therefore every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment does.
Claims (9)
1. a wastewater recycling system for cold rolling emulsion liquid is characterized in that: include iron and steel cold-rolling equipment, collecting tank, vibrations membrane ultrafiltration device and intermediate pool; Wherein
This collecting tank is used for collecting the cold-rolling emulsion waste water from the output of iron and steel cold-rolling equipment, and the input aperture of this collecting tank is communicated with the delivery port of iron and steel cold-rolling equipment;
This vibrations membrane ultrafiltration device is used for the waste water of collecting tank output is carried out filtering separation formation clear liquid and dense oil, and this vibrations membrane ultrafiltration device includes casing and is installed on casing interior film group and motor; This film group has stoste input aperture, clear liquid delivery port and dense oil outlet; The delivery port of aforementioned collecting tank is communicated with this stoste input aperture by fresh feed pump, and this dense oil outlet is communicated with extraneous; This film group is extended the center driving bar that is useful on the vibrations of drive film group downwards, and the lower end of this center driving bar is provided with eccentric block and the first flange, and this first flange is positioned at the below of eccentric block; This motor is positioned at the below of film group, and the output terminal of this motor is provided with the second flange, and this second flange is flexible coupling by belt and the first flange;
This intermediate pool is used for collecting aforementioned clear liquid and replenishes the adding emulsifier, and the input aperture of this intermediate pool is communicated with aforementioned clear liquid delivery port, and the delivery port of this intermediate pool is communicated with the input aperture of aforementioned iron and steel cold-rolling equipment;
This film group includes train wheel bridge, lower plate, water producing pipe and at least one filtering membrane unit that is fixedly clamped between train wheel bridge and lower plate;
Be provided with two aforementioned stoste input apertures and an aforementioned clear liquid delivery port on this train wheel bridge, this two stoste input aperture is respectively the first stoste input aperture and the second stoste input aperture, this the first stoste input aperture and the second stoste input aperture are mutually symmetrical and are arranged at outside the two relative side of clear liquid delivery port, this water producing pipe is fixedly clamped between train wheel bridge and lower plate, the lower end of water producing pipe is airtight, and the upper end of water producing pipe is communicated with this clear liquid delivery port;
Be provided with two aforementioned dense oil outlets on this lower plate, this two dense oil outlet is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
This filtering membrane unit includes from lower to upper superimposed the first standard film part, the second standard film part, the 3rd standard film part and the 4th standard film part together; Each standard film part is plates and being set in outside the water producing pipe ringwise all, and each standard film part has included pallet and diaphragm, and this diaphragm is folded the upper surface in pallet, and the periphery inboard on surface is provided with groove, this groove and water producing pipe internal communication on this pallet;
This first standard film part is ditrysian type standard film part, is provided with two first through holes on it, and this two first through hole is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
This second standard film part is monotrysian type standard film part, is provided with one second through hole on it, and this second through hole is positioned on the axis of aforementioned the second stoste input aperture;
The 3rd standard film part is ditrysian type standard film part, is provided with two third through-holes on it, and this two third through-hole is corresponding being positioned on the axis of aforementioned the first stoste input aperture and the second stoste input aperture respectively;
The 4th standard film part is monotrysian type standard film part, is provided with a fourth hole on it, and this fourth hole is positioned on the axis of aforementioned the first stoste input aperture;
In addition, the upper surface of the diaphragm of this each standard film part is provided with outer shroud and interior ring, and aforementioned each through hole is on the zone between outer shroud and the interior ring.
2. wastewater recycling system for cold rolling emulsion liquid according to claim 1, it is characterized in that: be connected and fixed by a plurality of bolts between described train wheel bridge and the lower plate, these a plurality of bolts are distributed in the periphery of train wheel bridge, these a plurality of screw bolt passes train wheel bridges and filtering membrane unit and be connected and fixed with lower plate.
3. wastewater recycling system for cold rolling emulsion liquid according to claim 1, it is characterized in that: be provided with a plurality of aforementioned grooves on the pallet of described each standard film part, these a plurality of grooves radially distribute centered by the middle part of pallet.
4. wastewater recycling system for cold rolling emulsion liquid according to claim 1 is characterized in that: two aforementioned eccentric blocks are set on the described center driving bar, but each eccentric block up-down adjustment and rotatable adjusting be installed on the center driving bar.
5. wastewater recycling system for cold rolling emulsion liquid according to claim 1, it is characterized in that: described eccentric block integral body is the semi-disc shape, be provided with the axis hole that passes for the center driving bar on this eccentric block, this eccentric block is provided with two arc notch near the side of axis hole, be formed with an arc convex between this arc notch, be provided with screw on this arc convex, this screw is communicated with axis hole.
6. wastewater recycling system for cold rolling emulsion liquid according to claim 1, it is characterized in that: described casing includes upper casing and base, the aforementioned films group is sealed closely to be wrapped in the upper casing, and aforementioned motor is installed in the base, is connected with a plurality of springs between this upper casing and the base.
7. wastewater recycling system for cold rolling emulsion liquid according to claim 6 is characterized in that: be folded with snubber block between the outside wall surface of described motor and the inner-wall surface of base, and the bottom of this base further is provided with the wheel of capable of regulating height.
8. wastewater recycling system for cold rolling emulsion liquid according to claim 1, it is characterized in that: described fresh feed pump is Non-blinding pump.
9. a cold-rolling emulsion waste water reclamation utilizes method, it is characterized in that: adopt wastewater recycling system for cold rolling emulsion liquid as claimed in claim 1, the step that comprises has
(1) the cold-rolling emulsion waste water that the iron and steel cold-rolling equipment is produced is input in the collecting tank;
(2) utilize fresh feed pump that waste water in the collecting tank is pumped in the vibrations membrane ultrafiltration device, and cooperation utilizes motor driving to rotate by the eccentric block that belt is flexible coupling, the centrifugal force that produces when the eccentric block high speed rotating can cause the top of vibrations membrane ultrafiltration device and wave, the energy that waves generation is sent on the center driving bar, so that this center driving bar impels film group high-frequency vibration, thereby so that the waste water filtering separation that pumps in the vibrations membrane ultrafiltration device obtains clear liquid and dense oil, this clear liquid is imported in the intermediate pool, and this dense oil discharges;
(3) replenish the adding emulsifier toward intermediate pool, so that the clear liquid in the intermediate pool forms cold-rolling emulsion after again processing, cold-rolling emulsion is back to use in the iron and steel cold-rolling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299347 CN102390882B (en) | 2011-10-09 | 2011-10-09 | System and method for reclaiming cold-roll emulsion liquid wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299347 CN102390882B (en) | 2011-10-09 | 2011-10-09 | System and method for reclaiming cold-roll emulsion liquid wastewater |
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| Publication Number | Publication Date |
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| CN102390882A CN102390882A (en) | 2012-03-28 |
| CN102390882B true CN102390882B (en) | 2013-04-17 |
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| CN 201110299347 Expired - Fee Related CN102390882B (en) | 2011-10-09 | 2011-10-09 | System and method for reclaiming cold-roll emulsion liquid wastewater |
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| CN103055594B (en) * | 2012-12-27 | 2015-06-17 | 亚洲铝业（中国）有限公司 | Processing method for cold rolling water-based coolant |
| CN106630245B (en) * | 2015-10-29 | 2020-03-06 | 宝山钢铁股份有限公司 | Method and device for efficiently degrading COD in cold-rolled concentrated oil inorganic super-filtered water |
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| CN200988799Y (en) * | 2006-11-28 | 2007-12-12 | 上海理工大学 | Adsorptive regeneration and split type vibration membrane biological reactor |
| CN202297210U (en) * | 2011-10-09 | 2012-07-04 | 东莞市威迪膜科技有限公司 | Wastewater recycling system for cold rolling emulsion liquid |
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Address after: 523000 Guangdong province Dongguan city Humen town village unity Avenue Guangdong industrial zone / Polytron Technologies Inc Applicant after: GUANGDONG VICDI TECHNOLOGY CO., LTD. Address before: 523000 Guangdong province Dongguan city Humen town village unity Avenue in Dongguan City Industrial Zone vicdi Membrane Technology Co. Ltd Applicant before: Dongguan Vicdi Film Science & Technology Co., Ltd. |
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