CN209065626U - A kind of pretreatment unit of waste water recycling - Google Patents
A kind of pretreatment unit of waste water recycling Download PDFInfo
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- CN209065626U CN209065626U CN201821463518.9U CN201821463518U CN209065626U CN 209065626 U CN209065626 U CN 209065626U CN 201821463518 U CN201821463518 U CN 201821463518U CN 209065626 U CN209065626 U CN 209065626U
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Abstract
The utility model relates to a kind of pretreatment units of waste water recycling, including are separated by filtration unit and depth upgrading unit.Unit is separated by filtration including at least conditioning tank, highly dense pond and oil pollution separator, conditioning tank, highly dense pond and oil pollution separator are sequentially connected in series.Depth upgrading unit includes at least osmosis filtration pond and electrodialysis plant.Oil pollution separator is connect by osmosis filtration pond with electrodialysis plant.The cylinder of oil pollution separator is built-in with the spiral board of at least one and rotation axis connection, the upper cavity connection of rotary shaft and oil pollution separator;Upper cavity is connect by cylinder with lower chamber.The connecting portion of upper cavity and cylinder is provided with and the tank connected greasy dirt mouth of greasy dirt.Cylinder is provided with water inlet.The connecting portion of cylinder and lower chamber is provided with filter plate, is provided with slag-drip opening above filter plate.Lower chamber is provided with discharge port, and discharge port is embedded with filter core.
Description
Technical field
The utility model relates to circulating water treatment technology field more particularly to a kind of pretreatment units of waste water recycling.
Background technique
In recent years, with the quickening of China's industrialization and Urbanization Progress process, shortage of water resources and environmental constraints and warp
Contradiction between Ji development becomes increasingly conspicuous, and country just gradually implements the energy-saving and emission-reduction policy and pollutant emission control being increasingly stringenter
Standard processed.Country continues to increase energy-saving and emission-reduction dynamics during " 13 ", carries out implementing clean manufacturing energetically, develop a circular economy
And Ecological Civilization Construction, it is desirable that enterprise changes to the mode of " low investment, low energy consumption, high efficiency and low emission ", " zero-emission " pipe
Reason theory is just gradually infiltrating into the environmentally friendly management system of enterprise.The recycling and environment protection emission for how realizing industrial wastewater, at
For those skilled in the art's focus of attention, also attract attention by its people.The processing of industrial wastewater mainly utilizes biology, chemistry and object
Reason and combinations thereof method is handled, and that how to realize industrial wastewater recycles trend of the times.Waste water salt extraction is industrial wastewater
Recycle a kind of economic and environment-friendly method.And link important in waste water salt extraction is the pretreated TDS value of waste water.
For example, the Chinese patent of Publication No. CN207498236U discloses a kind of device for improving PTA wastewater recycle rate.It should
Device includes that collection water tank, multistage pretreatment unit, intermediate water tank, reverse osmosis unit and nanofiltration device, the collection water tank are set
Have it is multiple catchment into water port, the water outlet of the collection water tank connects the water inlet end of the multistage pretreatment unit, described more
The water outlet of grade pretreatment unit connects the water inlet end of the intermediate water tank, and the water outlet of the intermediate water tank connects the reverse osmosis
The water inlet end of saturating device, the concentrated water water outlet of the reverse osmosis unit connects the water inlet end of the nanofiltration device, described multistage pre-
Processing unit includes level-one biochemical treatment apparatus, secondary biochemical treatment device, flocculation plant, sand filtering device and ultrafiltration apparatus, institute
Stating reverse osmosis unit includes first-stage reverse osmosis device and second level reverse osmosis apparatus.The utility model can further remove reverse osmosis
Salt in concentrated water improves PTA wastewater recycle rate, and water yield is big, and energy consumption is relatively low, more economical practical.
Above-mentioned apparatus at least has the disadvantage that when being applied in oily waste water, it may appear that oil removal efficiency is not high even
The case where being unable to oil removing;For multi-source waste water processing it is inadaptable.
Summary of the invention
For the deficiencies of the prior art, the present invention provides a kind of pretreatment units of waste water recycling, including are separated by filtration
Unit and depth upgrading unit;Unit is separated by filtration including at least conditioning tank, highly dense pond and oil pollution separator, the conditioning tank,
The highly dense pond and the oil pollution separator are sequentially connected in series;Depth upgrading unit includes at least osmosis filtration pond and electric osmose
Analysis apparatus;The oil pollution separator is connect by the osmosis filtration pond with the electrodialysis plant;Wherein, the greasy dirt point
Cylinder from device is built-in at least one and rotates the spiral board of axis connection, the rotary shaft and is fixed on the oil pollution separator
The motor of upper cavity connects;The upper cavity is connect by the cylinder with lower chamber;Wherein, the upper cavity and the cylinder
Connecting portion be provided with and the tank connected greasy dirt mouth of greasy dirt;The cylinder is provided with water inlet;The cylinder and the cavity of resorption
The connecting portion of body is provided with the filter plate for being fixed on the cylinder inboard wall, is provided with slag-drip opening above the filter plate;Institute
It states lower chamber and is provided with discharge port, the discharge port is embedded with filter core.
According to a kind of preferred embodiment, the inner wall of the conditioning tank is fixed at least one cross-current type corrugated plating, institute
It states conditioning tank and is provided at least one waste water inlet and at least one water outlet;At least one described cross-current type corrugated plating is setting
There is the hollow structure of several through-holes and is connect with air intake pipe;The air intake pipe is connect with air compressor machine;The waste water into
Mouth is connect with raw water pump;The water outlet is connect with the highly dense pond.
According to a kind of preferred embodiment, the conditioning tank is built-in at least one filter screen and at least one blowdown
Mouthful;Wherein, at least one described filter screen is embedded at least one layer of hydrophobic oleophilic oil film.
According to a kind of preferred embodiment, the rotary shaft is hollow structure, and passes through air compression pipeline and the pneumatics
Machine connection.
According to a kind of preferred embodiment, it is provided between the highly dense pond and the oil pollution separator and the pneumatics
The ultra filtration filter tank of machine connection;Wherein the ultra-filtration filters pond be built-in at least one ultrafiltration membrane set of pieces and with the water inlet
The discharge outlet of connection.
According to a kind of preferred embodiment, the osmosis filtration pond includes middle pressure osmosis filtration pond, high pressure reverse osmosis
Permeation filtering pond and/or super-pressure osmosis filtration pond, wherein medium pressure osmosis filtration pond passes through high-pressure pump and the high pressure
The connection of osmosis filtration pond, high pressure osmosis filtration pond are connected by super-pressure pump and super-pressure osmosis filtration pond
It connects;Medium pressure osmosis filtration pond is connected with the oil pollution separator;Medium pressure osmosis filtration pond, the high pressure reverse osmosis
At least one of permeation filtering pond and/or super high pressure osmosis filtration pond are connect with the electrodialysis plant.
According to a kind of preferred embodiment, it is provided between medium pressure osmosis filtration pond and the oil pollution separator
Weak acid resin bed;Wherein, the weak acid resin bed is connect by medium lift pump with medium pressure osmosis filtration pond;The weak acid tree
Rouge bed is connect by the discharge port with the oil pollution separator.
According to a kind of preferred embodiment, medium pressure osmosis filtration pond, high pressure osmosis filtration pond and/or
Super-pressure osmosis filtration pond is connect by water producing tank with bipolar membrane electrodialysis device;Wherein, the bipolar membrane electrodialysis device
Alkaline chamber connect with the highly dense pond.
According to a kind of preferred embodiment, the concentrated water spout of the electrodialysis plant is connect with nanofiltration pond, the electrodialysis
The production mouth of a river of device is connect with the water producing tank.
According to a kind of preferred embodiment, described device further includes the sludge treating block connecting with the conditioning tank,
The sludge treating block includes vibrating screen, plate and frame type filter-press and sludge-tank;The vibrating screen respectively with the plate and frame pressure
Filter is connected with the sludge-tank;The plate and frame type filter-press is connected with sludge-tank;Wherein, the plate and frame type filter-press with it is described
Waste water inlet is connected by circulating pump;The vibrating screen and the slag-drip opening, the sewage draining exit, the highly dense pond and/or ultrafiltration
Filtering ponds are separately connected.
The utility model provides a kind of pretreatment unit of waste water recycling, at least has the advantage that
(1) according to Stokes principle, oil pollution separator is set, and the high speed rotation of cyclone can be by the greasy dirt in waste water
It is separated with water, to degrease, convenient for the Treatment for Reuse of waste water;While greasy dirt separates, moreover it is possible to remove partial impurities;Greasy dirt
The discharge port of separator is built-in with filter core, to reduce damage of the objectionable impurities to aftertreatment device film;
(2) conditioning tank uses cross-current type corrugated plating and air intake pipe, and the water at different water sources passes through cross-current type ripple
The double action of plate and air intake pipe, is sufficiently mixed, and guarantees the stability of whole device water quality treatment;Conditioning tank is additionally provided with
The filter screen of hydrophobic oleophilic oil film, can remove partial impurities can also adsorb greasy dirt;
(3) bipolar membrane electrodialysis device generates alkali using the production water in device, meet the demand with alkali in highly dense pond without
Outsourcing alkali is needed, device has more economy;
(4) when Treatment of Sludge, press sludge under the high-frequency vibration of vibrating screen to the impurity of sludge by vibrating screen
Granular size is pre-separated, to reduce the workload of plate and frame type filter-press.
Detailed description of the invention
Fig. 1 is a kind of logic module schematic diagram of the pretreatment unit of waste water recycling provided by the utility model;
Fig. 2 is a kind of preferred knot of one kind of the oil pollution separator of the pretreatment unit of waste water recycling provided by the utility model
Structure schematic diagram;With
Fig. 3 is that a kind of a kind of preferred structure in the homogeneous pond of the pretreatment unit of waste water recycling provided by the utility model shows
It is intended to.
Reference signs list
10: conditioning tank 102: through-hole
11: highly dense pond 103: air intake pipe
12: ultra filtration filter tank 104: waste water inlet
13: oil pollution separator 105: water outlet
14: weak acid resin bed 106: filter screen
20: middle pressure osmosis filtration pond 107: sewage draining exit
21: high pressure osmosis filtration pond 108: hydrophobic oleophilic oil film
22: super-pressure osmosis filtration pond 131: cylinder
23: electrodialysis plant 132: filter plate
24: nanofiltration pond 133: discharge port
25: water producing tank 134: filter core
26: bipolar membrane electrodialysis device 135: slag-drip opening
30: vibrating screen 136: greasy dirt mouth
31: plate and frame type filter-press 137: rotary shaft
32: sludge-tank 138: water inlet
101: cross-current type corrugated plating 139: spiral board
Specific embodiment
It is described in detail with reference to the accompanying drawing.
It in description of the invention, term " first ", " second ", " third " and is used for description purposes only, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic." first ", " are defined as a result,
Two ", " third " and feature can explicitly or implicitly include one or more of the features.In retouching for the utility model
In stating, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " inside ", " inside " is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention, term " removably " is bonding, key connection, threaded connection, pin connection, card
Connect, hingedly, one of clearance fit or transition fit.It for the ordinary skill in the art, can be according to specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
The present embodiment provides a kind of pretreatment units of waste water recycling, including be separated by filtration unit and depth upgrading unit and
Sludge treating block.As shown in Figure 1, being separated by filtration unit includes conditioning tank 10, highly dense pond 11 and oil pollution separator 13.Conditioning tank
10, highly dense pond 11 and oil pollution separator 13 are sequentially connected in series.Depth upgrading unit includes osmosis filtration pond and electrodialysis dress
Set 23.Oil pollution separator 13 is connect by osmosis filtration pond with electrodialysis plant 23.
Wherein, the cylinder 131 of oil pollution separator 13 is built-in at least one spiral board 139 connecting with rotary shaft 137, rotation
Shaft 137 is connect with the upper cavity of oil pollution separator 13.Upper cavity is connect by cylinder 131 with lower chamber.Specifically, epicoele
It is connected in the form of welding between body and cylinder 131, is connected in the form of welding between cylinder 131 and lower chamber.Such as Fig. 2 institute
Show, there are three spiral boards 139, and in the form of welding with rotary shaft 137, the upper cavity of rotary shaft 137 and oil pollution separator 13
It is connected by bearing.Spiral board 139 can also be 1,2,4 even more than.The connecting portion of upper cavity and cylinder 131 is set
It is equipped with and the tank connected greasy dirt mouth 136 of greasy dirt.Cylinder 131 is provided with water inlet 138.The connecting portion of cylinder 131 and lower chamber
It is provided with filter plate 132.The top of filter plate 132 is provided with slag-drip opening 135.Lower chamber is provided with discharge port 133, discharge port
133 are embedded with filter core.Filter core can be with sintered filter core and honeycomb filter core.Specifically, filter core uses 5 microns of honeycomb filter core.
Preferably, conditioning tank 10 is built-in with cross-current type corrugated plating 101, setting that at least one connect with conditioning tank 10 extremely
A few waste water inlet 104 and at least one water outlet 105.At least one cross-current type corrugated plating 101 is to be provided with several through-holes
102 hollow structure is simultaneously connect with air intake pipe 103.Air intake pipe 103 is connect with air compressor machine.Waste water inlet 104 and original
Water pump connection.Water outlet 105 is connect with highly dense pond 11.Specifically, as shown in figure 3, cross-current type corrugated plating 101 is 5 total,
In there are two the lower sections of two waste water inlets 104 is set to, excess-three is arranged in conditioning tank 10 by snakelike mode.It is wrong
Streaming corrugated plating 101 is connect in the form of welding with 10 pool wall of conditioning tank.There have a cross-current type corrugated plating 101 to be several to be provided with
The hollow structure of through-hole 102 is simultaneously connect with air intake pipe 103.There is a water outlet to be set to the pool wall of conditioning tank 10.Again
Such as, the number of cross-current type corrugated plating 101 can be 1, and 2,3,4,6 even more.Waste water inlet 104 can be with
It is 1,3 even more.Water outlet 105 can be 2,3 or more.Air compressor machine can be positive displacement pneumatics
One of machine, piston type air compressor and rotary air compressor machine.Specifically, the model GRF-50D of air compressor machine.
Preferably, conditioning tank 10 is built-in at least one filter screen 106 and at least one sewage draining exit 107.Wherein, at least one
A filter screen 106 is embedded at least one layer of hydrophobic oleophilic oil film 108.Specifically, as shown in Fig. 2, there are three mistakes built in conditioning tank 10
Strainer 106 and three sewage draining exits 107, wherein there is a filter screen 106 to be embedded with one layer of hydrophobic oleophilic oil film 108.For another example, filter screen
106 can also be 1,2,4 or more.Sewage draining exit 107 can also be 1,2,4 or more.2 or more
Filter screen 106 be embedded with 2 layers or more of hydrophobic oleophilic oil film 108.Hydrophobic oleophilic oil film 108 can be by polypropylene (IPP), poly- inclined
Routine hydrophobic oleophilic oil film made of the high molecular materials such as vinyl fluoride (PVDF) and polytetrafluoroethylene (PTFE) (PTFE).Hydrophobic oleophilic oil film 108
It can also be that stainless (steel) wire immerses in certain density polycarbonate solution, it is rear to obtain highly dredging by water droplet template self-organizing method
Water oil-wet film.Hydrophobic oleophilic oil film 108 is using sol-gel method in being prepared for super-hydrophobic super-oleophylic SiO2 film on stainless (steel) wire.
Preferably, rotary shaft 137 is hollow structure, and is connect by air compression pipeline with air compressor machine.
Preferably, the ultra filtration filter tank 12 connecting with air compressor machine is provided between highly dense pond 11 and oil pollution separator 13.Its
In, discharge outlet that ultra filtration filter tank 12 is built-in at least one ultrafiltration membrane set of pieces and connect with water inlet 138.Ultra-filtration filters
Pond 12 is built-in with 1 ultrafiltration membrane set of pieces and 1 discharge outlet connecting with water inlet 138.It ultra filtration filter tank 12 can be with built-in 2
It is a, 3 or more ultrafiltration membrane set of pieces and 2,3 or more the discharge outlet being connect with water inlet 138.Ultrafiltration sheet membrane module
Part can sift out the solute molecule less than aperture, be greater than 10 to separate molecular weight greater than 500 dalton (atomic mass unit), partial size
The particle of nanometer.
Preferably, osmosis filtration pond includes middle pressure osmosis filtration pond 20, high pressure osmosis filtration pond 21 and/or surpasses
High pressure osmosis filtration pond 22.Wherein, middle pressure osmosis filtration pond 20 passes through high-pressure pump (output pressure 3.5Mpa -4.5Mpa)
It is connect with high pressure osmosis filtration pond 21.By super-pressure pump, (output pressure is greater than 4.5Mpa-in high pressure osmosis filtration pond 21
6Mpa) it is connect with super-pressure osmosis filtration pond 22.Press mold member in extraordinary concentration antipollution built in middle pressure osmosis filtration pond 20
Part (GTR3-8040F-65, width of flow path 65mil).Extraordinary concentration antipollution high pressure membrane element built in high pressure osmosis filtration pond 21
Part (GTR4-8040F-65, width of flow path 65mil).Super-pressure DTR0 superposed pipe membrane element built in super-pressure osmosis filtration pond 22
Part 7W101500 (width of flow path 6mm).Middle pressure osmosis filtration pond 20 and oil pollution separator 13 connect.Middle pressure osmosis filtration pond
20, at least one of high pressure osmosis filtration pond 21 and/or super-pressure osmosis filtration pond 22 connect with electrodialysis plant 23
It connects.Specifically, middle pressure osmosis filtration pond 20, high pressure osmosis filtration pond 21 and super-pressure osmosis filtration pond 22 and electrodialysis
Device 23 is separately connected.
Preferably, weak acid resin bed 14 is provided between middle pressure osmosis filtration pond 20 and oil pollution separator 13.Wherein, weak
Acid resin bed 14 is connect by medium lift pump (2Mpa -3.5Mpa) with middle pressure osmosis filtration pond 20.Weak acid resin bed 14 is by going out
Material mouth 133 is connect with oil pollution separator 13.The strong ion-exchange capacity of weak acid resin bed application weak-acid cation-exchange resin.
Wherein most wide with the weakly acidic resin purposes of carboxylic acid group, dissociation degree is weaker in water as organic acid for carboxylic acid group's positive resin,
Weakly acidic, it can only show ion exchange with that could dissociate in alkaline medium close to neutral.
Preferably, middle pressure osmosis filtration pond 20, high pressure osmosis filtration pond 21 and/or super-pressure osmosis filtration pond 22
It is connect by water producing tank 25 with bipolar membrane electrodialysis device 26.Wherein, the alkaline chamber of bipolar membrane electrodialysis device 26 is connect with highly dense pond 11.
Bipolar membrane electrodialysis device 26 includes power supply unit and membrane stack unit.Membrane stack unit includes Bipolar Membrane, cavity block and anode membrane.Power supply unit
Including positive plate, negative plate and direct current power box.Cavity between cavity block and anode membrane constitutes salt room.Structure between anode membrane and Bipolar Membrane
At alkaline chamber.Pole water chamber is constituted between Bipolar Membrane and cavity wall.After powered up, Bipolar Membrane two sides ionize out hydrogen ion and hydroxyl from
Son, the cation permeable anode membrane in salt room, is discharged into highly dense pond with the anion binding in alkaline chamber at alkali.
Preferably, the concentrated water spout of electrodialysis plant 23 is connect with nanofiltration pond 24.The production mouth of a river of electrodialysis plant 23 and production water
Case 25 connects.Electrodialysis plant 23 is under the action of DC electric field, using yin, yang electric drive film to anions and canons in solution
Selective penetrated property filtering, thus a kind of physical and chemical process for being separated from each other solute in solution and water, to realize dense
The further concentration of water, concentrated water TDS (Total dissolved solids, total dissolved solidss) 150000mg/L, after satisfaction
The standard of continuous salt manufacturing.
Preferably, the pretreatment unit of waste water recycling further includes the sludge treating block connecting with conditioning tank 10.At sludge
Managing unit includes vibrating screen 30, plate and frame type filter-press 31 and sludge-tank 32.Vibrating screen respectively with plate and frame type filter-press 31 and sludge
Pond 32 connects.Plate and frame type filter-press 31 and sludge-tank 32 connect.Wherein, plate and frame type filter-press 31 is with waste water inlet 104 by following
Ring pump connection.Vibrating screen 30 is separately connected with slag-drip opening 135, sewage draining exit 107, highly dense pond 11 and/or ultra filtration filter tank 12.Vibration
Dynamic sieve 30 is worked using the vibration of reciprocating rotary type caused by oscillator exciting.It is flat that the upper rotation weight of oscillator generates compass screen surface
Face whirling vibration, and lower rotation weight then makes compass screen surface generate conical surface rotary vibration, the effect of synergy then generates compass screen surface
Rotation type vibrates again.Specifically, vibrating screen 30 is the main electronic vibration including screen box, sieve, vibration excitor, suspension arrangement and motor
Dynamic screen(ing) machine.Vibrating screen 30 drives vibration excitor main shaft gyration through V belt, due to the centrifugation inertia of weight uneven on vibration excitor
Power effect, makes screen box obtain vibration.Sieve is divided into three layers, carries out being sorted into plate and frame filters pressing with the sludge to variable grain size
Machine 31 improves separative efficiency and reduces the workload of plate and frame type filter-press 31.
Plate and frame type filter-press 31 includes the filter chamber that filter plate and filter frame are arranged to make up, and under the pressure effect of dehvery pump, will be expected
Liquid is sent into each filter chamber, is separated solid and liquid by filter medium.Solid discharge is to sludge-tank, liquid reflux to conditioning tank 10
In.
Preferably, highly dense pond includes preceding coagulating basin, flocculation basin, rear coagulating basin and clarifying basin.Preceding coagulating basin, flocculation basin, after
Coagulating basin and clarifying basin are sequentially connected in series.Preceding coagulating basin is connect with conditioning tank 10.Clarifying basin connects with ultra filtration filter tank 12 respectively
It connects.Preceding coagulating basin, flocculation basin, rear coagulating basin and clarifying basin pass through sludge pipe and connect with sludge concentration tank.Preceding coagulating basin, flocculation
Pond, rear coagulating basin and clarifying basin are connect by killer injecting pump with injection pond.Medicament mainly include lime, sodium hydroxide, sodium carbonate,
PAC (Polyaluminium Chloride, aluminium polychloride) and PAM (Polyacrylamide, polyacrylamide).Hydrogen-oxygen
Change sodium to be generated by bipolar membrane electrodialysis device 26.
Working principle: common work of the waste water of separate sources in conditioning tank 10 through cross-current type bellows and air intake pipe
Under, it is sufficiently mixed.It is discharged into after the primary filtration of conditioning tank 10 and preliminary oil removing in highly dense pond 11, through coagulation, flocculation and sinks
Water after the clarification of shallow lake is emitted into ultra filtration filter tank 12.After little particle impurity is filtered in ultra filtration filter tank 12 again, it is discharged into
In oil pollution separator 13.Under the high speed rotation of 13 cyclone of oil pollution separator, greasy dirt, water and impurity separate again.Greasy dirt point
Water after acting on from device 13 is emitted into weak acid resin bed, and the water after the softening of weak acid resin bed is emitted into osmosis filtration pond,
The concentrated water discharge of pressure, high pressure and super-pressure three-level osmosis filtration to electrodialysis plant 23 carries out depth concentration in, meets
The standard of subsequent salt manufacturing is discharged into nanofiltration pond 24 and carries out a point salt treatment.Pressure, high pressure and super-pressure three-level osmosis filtration in
Production water be discharged into after water producing tank 25 and be discharged into 26 alkaline of bipolar membrane electrodialysis resolver and be back to highly dense pond 11.It is carried out in nanofiltration pond 24
Strong brine after point salt treatment enters in salinity separation system, such as crystallizer and separator device.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection scope.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Constitute limitations on claims.Protection scope of the present invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of pretreatment unit of waste water recycling, including it is separated by filtration unit and depth upgrading unit;It is characterized in that,
Unit is separated by filtration including at least conditioning tank (10), highly dense pond (11) and oil pollution separator (13), the conditioning tank (10),
The highly dense pond (11) and the oil pollution separator (13) are sequentially connected in series;
Depth upgrading unit includes at least osmosis filtration pond and electrodialysis plant (23);The oil pollution separator (13) passes through institute
Osmosis filtration pond is stated to connect with the electrodialysis plant (23);
Wherein, the cylinder (131) of the oil pollution separator (13) is built-in at least one spiral board connecting with rotary shaft (137)
(139), the rotary shaft (137) connect with the motor for being fixed on the oil pollution separator (13) upper cavity;The upper cavity is logical
The cylinder (131) is crossed to connect with lower chamber;Wherein,
The upper cavity and the connecting portion of the cylinder (131) are provided with and the tank connected greasy dirt mouth (136) of greasy dirt;The cylinder
Body (131) is provided with water inlet (138);The connecting portion of the cylinder (131) and the lower chamber be provided be fixed on it is described
The filter plate (132) of cylinder (131) inner wall is provided with slag-drip opening (135) above the filter plate (132);The lower chamber
It is provided with discharge port (133), the discharge port (133) is embedded with filter core.
2. the pretreatment unit of waste water recycling as described in claim 1, which is characterized in that conditioning tank (10) inner wall is fixed
There is at least one cross-current type corrugated plating (101), the conditioning tank (10) is provided at least one waste water inlet (104) and at least one
A water outlet (105);
At least one described cross-current type corrugated plating (101) is to be provided with the hollow structure of several through-holes (102) and suck with air
Manage (103) connection;The air intake pipe (103) connect with air compressor machine;
The waste water inlet (104) connect with raw water pump;The water outlet (105) connect with the highly dense pond (11).
3. the pretreatment unit of waste water recycling as claimed in claim 2, which is characterized in that
The conditioning tank (10) is built-in at least one filter screen (106) and at least one sewage draining exit (107);Wherein,
At least one described filter screen (106) is embedded at least one layer of hydrophobic oleophilic oil film (108).
4. the pretreatment unit of waste water recycling as claimed in claim 3, which is characterized in that the rotary shaft (137) passes through sky
Pressure pipeline is connect with the air compressor machine.
5. the pretreatment unit of waste water recycling as claimed in claim 4, which is characterized in that the highly dense pond (11) and the oil
The ultra filtration filter tank (12) connecting with the air compressor machine is provided between pollution discharge separator (13);Wherein
The draining that the ultra filtration filter tank (12) is built-in at least one ultrafiltration membrane set of pieces and connect with the water inlet (138)
Mouthful.
6. the pretreatment unit of waste water recycling as claimed in claim 5, which is characterized in that during the osmosis filtration pond includes
Press osmosis filtration pond (20), high pressure osmosis filtration pond (21) and/or super-pressure osmosis filtration pond (22), wherein
Medium pressure osmosis filtration pond (20) is connect by high-pressure pump with high pressure osmosis filtration pond (21), the high pressure
Osmosis filtration pond (21) is connect by super-pressure pump with super-pressure osmosis filtration pond (22);Medium pressure reverse osmosis penetrates
Filter tank (20) and the oil pollution separator (13) connection;
Medium pressure osmosis filtration pond (20), high pressure osmosis filtration pond (21) and/or the super high pressure reverse osmosis penetrate
At least one of filter tank (22) is connect with the electrodialysis plant (23).
7. the pretreatment unit of waste water recycling as claimed in claim 6, which is characterized in that medium pressure osmosis filtration pond
(20) it is provided between the oil pollution separator (13) weak acid resin bed (14);
Wherein, the weak acid resin bed (14) is connect by medium lift pump with medium pressure osmosis filtration pond (20);
The weak acid resin bed (14) is connect by the discharge port (133) with the oil pollution separator (13).
8. the pretreatment unit of waste water recycling as claimed in claim 7, which is characterized in that medium pressure osmosis filtration pond
(20), high pressure osmosis filtration pond (21) and/or super-pressure osmosis filtration pond (22) pass through water producing tank (25) and Bipolar Membrane electricity
Dialyzer (26) connection;
Wherein, the alkaline chamber of the bipolar membrane electrodialysis device (26) is connect with the highly dense pond (11).
9. the pretreatment unit of waste water recycling as claimed in claim 8, which is characterized in that the electrodialysis plant (23) it is dense
The mouth of a river is connect with nanofiltration pond (24), and the production mouth of a river of the electrodialysis plant (23) is connect with the water producing tank (25).
10. the pretreatment unit of waste water recycling as claimed in claim 9, which is characterized in that described device further include with it is described
The sludge treating block of conditioning tank (10) connection, wherein
The sludge treating block includes vibrating screen (30), plate and frame type filter-press (31) and sludge-tank (32);The vibrosieve
It is not connect with the plate and frame type filter-press (31) and the sludge-tank (32);The plate and frame type filter-press (31) and sludge-tank (32)
Connection;Wherein,
The plate and frame type filter-press (31) is connect with the waste water inlet (104) by circulating pump;
The vibrating screen (30) and the slag-drip opening (135), the sewage draining exit (107), the highly dense pond (11) and/or ultra filtration
Filter tank (12) is separately connected.
Priority Applications (1)
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CN201821463518.9U CN209065626U (en) | 2018-09-07 | 2018-09-07 | A kind of pretreatment unit of waste water recycling |
Applications Claiming Priority (1)
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