CN108043108A - A kind of solid-liquid separation system - Google Patents
A kind of solid-liquid separation system Download PDFInfo
- Publication number
- CN108043108A CN108043108A CN201810126081.8A CN201810126081A CN108043108A CN 108043108 A CN108043108 A CN 108043108A CN 201810126081 A CN201810126081 A CN 201810126081A CN 108043108 A CN108043108 A CN 108043108A
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- Prior art keywords
- valve
- solid
- filter press
- liquid separation
- separation system
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- 239000007788 liquid Substances 0.000 title claims abstract description 57
- 238000000926 separation method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims abstract description 54
- 239000002253 acid Substances 0.000 claims abstract description 37
- 230000008719 thickening Effects 0.000 claims abstract description 36
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 238000004064 recycling Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 235000021110 pickles Nutrition 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000009292 forward osmosis Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of solid-liquid separation system, including spent acid reservoir, clear water reserviors, filter press, thickening filtration device and collecting pit；The spent acid reservoir and the clear water reserviors are connected by the first suction pump with the inlet of the filter press, the water outlet of the filter press is connected by the second suction pump with the inlet of the thickening filtration device, and the clean water outlet of the thickening filtration device is connected with the collecting pit；The water outlet of the filter press is also connected to wastewater disposal basin, and the entrance of the wastewater disposal basin is equipped with the 4th valve.The solid-liquid separation system of the present invention, which need not replace filter core, will not occur stopping state, it saves cost and extends the service life of filter press, the solid and liquid obtained after system separation can recycle, not only realize zero pollutant discharge, it solves the problems, such as the wasting of resources, and greatly reduces production and the processing cost of enterprise.
Description
Technical field
The present invention relates to liquid waste disposal technique field, in particular to a kind of solid-liquid separation system.
Background technology
Stainless steel is widely used due to its excellent corrosion resistance and good appearance.Stainless steel in process of production,
Inevitably the oxide skin of black can be generated often by process, surfaces such as annealing, normalizing, quenching, welding.Oxidation
Skin not only influences the presentation quality of stainless steel, can also have a negative impact to the following process of product, therefore must before following process
It must be removed using surface treatment methods such as pickling, polishings.
In existing stainless steel procedure for producing, sulfuric acid washing section and nitration mixture pickling section process can generate substantial amounts of spent acid
Liquid, acid concentration height and the solid impurity containing high level.It is directly discharged into wastewater disposal basin, is caused to subsequent wastewater treatment very high
Cost and load pressure.
Also have what is handled using filter in existing processing procedure, but have the following problems：
1. filter often blocks, and must replace filter core；
2. cleaning filter is wanted after blocking, waste substantial amounts of water resource and generates substantial amounts of waste water；
3. special messenger is needed to safeguard, manual operation and dangerous height；
4. the solid slag generated needs manual cleaning, highly difficult and high containing acid concentration, environmental requirement is not achieved.
The content of the invention
In view of this, a kind of solid-liquid separation system provided by the invention preferably overcomes above-mentioned existing in the prior art
Problem and defect, which, which need not replace filter core, will not occur stopping state, save cost and extend press filtration
The service life of machine, the solid and liquid obtained after system separation can recycle, and not only realize zero pollutant row
Put, effectively reduce processing cost and load, and solve the problems, such as the wasting of resources, and greatly reduce enterprise production and
Processing cost has very big social and economic benefit.
A kind of solid-liquid separation system, including spent acid reservoir, clear water reserviors, filter press, thickening filtration device and collecting pit；
The spent acid reservoir and the clear water reserviors are connected by the first suction pump with the inlet of the filter press, described
The water outlet of spent acid reservoir is equipped with the first valve, and the water outlet of the clear water reserviors is equipped with the second valve；
The water outlet of the filter press is connected by the second suction pump with the inlet of the thickening filtration device, and described
The entrance of two suction pumps is equipped with the 3rd valve；
The clean water outlet of the thickening filtration device is connected with the collecting pit；
The water outlet of the filter press is also connected to wastewater disposal basin, and the entrance of the wastewater disposal basin is equipped with the 4th valve.
Further, the solid-liquid separation system further includes the first compressed air generator, first compressed air
Generating means is connected by the first suction pump with the inlet of the filter press, the outlet of first compressed air generator
Mouth is equipped with the 5th valve.
Further, the solid-liquid separation system further includes the second compressed air generator, the water outlet of the filter press
Mouth is connected with second compressed air generator, and the gas outlet of second compressed air generator is equipped with the 6th valve
Door.
Further, the inlet of the filter press is equipped with the 7th valve.
Further, the solid-liquid separation system further includes the 3rd compressed air generator, the thickening filtration device
Clean water outlet connected with the 3rd compressed air generator, the gas outlet of the 3rd compressed air generator is equipped with the
Eight valves, the entrance of the collecting pit are equipped with the 9th valve.
Further, the inlet of the thickening filtration device is equipped with the tenth valve.
Further, intermediate pool is equipped between the water outlet of the filter press and the entrance of second suction pump, it is described
The entrance of intermediate pool is equipped with the 11st valve.
Further, it is provided with liquid level gauge in the intermediate pool.
Further, the solid-liquid separation system further includes filter residue recycling and processing device, the sludge outlet of the filter press
It is connected with the filter residue recycling and processing device.
Further, the concentrated water spout of the thickening filtration device is provided with the 12nd valve, the thickening filtration device
Concentrated water spout is connected with the spent acid reservoir.
Compared with prior art, the advantageous effect of solid-liquid separation system of the invention is：
(1) solid-liquid separation system of the invention carries out separation of solid and liquid, and press filtration again by filter press and thickening filtration device
After machine carries out separation of solid and liquid to acid pickle, the filter residue in filter press is rinsed with clear water, makes entire solid-liquid separation system work
During work, need not replace filter core will not occur stopping state, save cost and extend the service life of filter press, through this
The solid and liquid obtained after system separation can recycle, and not only realize zero pollutant discharge, effectively reduce processing
Cost and load, and solve the problems, such as the wasting of resources, and production and the processing cost of enterprise are greatly reduced, have very big
Social and economic benefit.
(2) solid-liquid separation system high degree of automation of the invention, operational safety, stabilization, easy to operate, management it is convenient and
Treatment effect is more preferable.
(3) further, solid-liquid separation system of the invention is by using compressed air, is ensureing filter press and concentrated
In the case that filter device does not block, reduce because cleaning the wastewater flow rate generated and being further reduced maintenance cost.
For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure diagram of the solid-liquid separation system of the present invention.
Drawing reference numeral explanation：
1- spent acid reservoirs；2- clear water reserviors；3- filter presses；4- thickening filtration devices；5- collecting pits；The first valves of 6-；7-
Two valves；The first suction pumps of 8-；The 3rd valves of 9-；The second suction pumps of 10-；11- wastewater disposal basins；The 4th valves of 12-；13- first is pressed
Contracting air generator；The 5th valves of 14-；The second compressed air generators of 15-；The 6th valves of 16-；The 7th valves of 17-；
The 3rd compressed air generators of 18-；The 8th valves of 19-；The 9th valves of 20-；The tenth valves of 21-；The 11st valves of 22-；23-
Intermediate pool；24- liquid level gauges；The 12nd valves of 25-；26- filter residue recycling and processing devices.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
In the description of the present invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be the connection inside mechanical connection or electrical connection or two elements, it can
To be to be connected directly, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.Unless otherwise defined, otherwise all terms used herein (including technology
Term and scientific terminology) with identical with the normally understood meaning of various embodiments of the present invention one skilled in the art
Meaning.The term (term such as limited in the dictionary generally used) is to be interpreted as having with leading in correlation technique
The identical meaning of situational meaning in domain and the meaning of Utopian meaning or overly formal will be interpreted as having, unless
It is clearly defined in various embodiments of the present invention.
Embodiment
Refering to Fig. 1, a kind of solid-liquid separation system, including spent acid reservoir 1, clear water reserviors 2, filter press 3, thickening filtration device 4
With collecting pit 5.
The spent acid reservoir 1 and the clear water reserviors 2 are connected by the first suction pump 8 with the inlet of the filter press 3,
The water outlet of the spent acid reservoir 1 is equipped with the first valve 6, and the water outlet of the clear water reserviors 2 is equipped with the second valve 7.
The water outlet of the filter press 3 is connected by the second suction pump 10 with the inlet of the thickening filtration device 4, institute
The entrance for stating the second suction pump 10 is equipped with the 3rd valve 9.
The clean water outlet of the thickening filtration device 4 is connected with the collecting pit 5.
The water outlet of the filter press 3 is also connected to wastewater disposal basin 11, and the entrance of the wastewater disposal basin 11 is equipped with the 4th valve 12.
It should be noted that above-mentioned thickening filtration device 4 is preferably micropore filter element filter, height can also be enumerated as certainly
Press reverse osmosis rolled film or the reverse osmosis disc type film of high pressure, vibrating membrane, forward osmosis membrane, NF membrane, ultrafiltration membrane, nanofiltration-micro-filtration combination
Device or commonly common filter core etc..
In the embodiment of the present invention by set thickening filtration device 4 by acid pickle by further filtering after, can more thoroughly
The micro tiny solid suspended matter in acid pickle is removed, the concentrate being obtained by filtration is arranged from the concentrated water spout of thickening filtration device 4
Go out into spent acid reservoir 1 and reprocess, cross drainage and be discharged into collecting pit 5, be recycled.
Preferably, in the embodiment of the present invention, the solid-liquid separation system further includes the first compressed air generator 13, institute
It states the first compressed air generator 13 to connect with the inlet of the filter press 3 by the first suction pump 8, first compression
The gas outlet of air generator 13 is equipped with the 5th valve 14.
It should be noted that above-mentioned first compressed air generator 13 is used in spent acid after 3 press filtration of filter press, it is passed through
Compressed air makes the acid pickle in pipeline, in suction pump and in filter press 3 be discharged to subsequent concentration filtering dress under the promotion of pressure difference
Further filtration treatment is carried out in putting 4；And for after the filter residue in filter press 3 is rinsed with the water in clear water reserviors 2, being passed through pressure
Contracting air makes the waste water in pipeline, in suction pump and in filter press 3 be discharged under the promotion of pressure difference in wastewater disposal basin 11.
Preferably, in the embodiment of the present invention, the solid-liquid separation system further includes the second compressed air generator 15, institute
The water outlet for stating filter press 3 is connected with second compressed air generator 15, second compressed air generator 15
Gas outlet be equipped with the 6th valve 16.
It should be noted that above-mentioned second compressed air generator 15 is used in pipeline is made, in suction pump and press filtration
After waste water in machine 3 is discharged in wastewater disposal basin 11, compressed air recoil is passed through, by the filter residue in filter press 3 from the filter residue of filter press 3
Outlet discharge.
Preferably, in the embodiment of the present invention, the inlet of the filter press 3 is equipped with the 7th valve 17.
Preferably, in the embodiment of the present invention, the solid-liquid separation system further includes the 3rd compressed air generator 18, institute
The clean water outlet for stating thickening filtration device 4 is connected with the 3rd compressed air generator 18, and the 3rd compressed air occurs
The gas outlet of device 18 is equipped with the 8th valve 19, and the entrance of the collecting pit 5 is equipped with the 9th valve 20.
It should be noted that above-mentioned 3rd compressed air generator 18 is used in the concentrated filter device 4 of acid pickle
After further filtering is discharged in collecting pit 5, compressed air is passed through, thickening filtration device 4 is backwashed and arranges concentrate
Go out to recycle.
Preferably, in the embodiment of the present invention, the inlet of the thickening filtration device 4 is equipped with the tenth valve 21.
Preferably, in the embodiment of the present invention, between the entrance of the water outlet of the filter press 3 and second suction pump 10
Equipped with intermediate pool 23, the entrance of the intermediate pool 23 is equipped with the 11st valve 22.
It should be noted that the intermediate pool 23 is used to store the acid pickle discharged after 3 press filtration of filter press, and running up to
Subsequent concentration filter device 4 is conveyed to after a certain amount of to be filtered, and is avoided intermittently providing acid pickle and is given thickening filtration device
4, influence the service life of thickening filtration device 4.
Preferably, in the embodiment of the present invention, liquid level gauge 24 is provided in the intermediate pool 23.
It is understood that above-mentioned liquid level gauge 24 works as monitoring for monitoring the liquid level of the acid pickle in intermediate pool 23 in real time
When reaching the liquid level of setting, the acid pickle in intermediate pool 23 is discharged into subsequent concentration filter device 4 and is filtered processing.
Preferably, in the embodiment of the present invention, the solid-liquid separation system further includes filter residue recycling and processing device 26, the pressure
The sludge outlet of filter 3 is connected with the filter residue recycling and processing device 26.
The filter residue recycling and processing device 26 is returned for handling the solid slag generated after the dehydration of filter press 3
It receives and utilizes.The filter residue recycling and processing device 26 can be enumerated as calcining furnace, when the main component of solid slag is metal hydroxide
During object, calcine to obtain the higher metal oxide of purity by calcining furnace；Or hydrogen and nitrogen are further passed through in calcining furnace
Gas continues metal oxide to be reduced into the higher metal simple-substance of purity, and obtained metal simple-substance or metal oxide can continue
It recycles.Certain filter residue recycling and processing device 26 can be also other drying units, be carried out again after solid slag is dried
Other processing.
Preferably, in the embodiment of the present invention, the concentrated water spout of the thickening filtration device 4 is provided with the 12nd valve 25.Institute
The concentrated water spout for stating thickening filtration device 4 is connected with the spent acid reservoir 1.
It is understood that the filtering and concentrating liquid discharged by the concentrated water spout of thickening filtration device 4 can be with recycling to useless
After-treatment is carried out in sour reservoir 1, avoids the wasting of resources and direct exhaust emission environment.
Above-mentioned valve can be electrically-controlled valve or solenoid valve, make whole system Automatic Control, manual operation is not required, and drop
Low labor intensity and danger.
The concrete technology flow process of the solid-liquid separation system is：
The first valve 6, the 7th valve 17 and the 11st valve 22 are first opened, by the second valve 7, the 3rd valve 9, the 4th valve
The 12, the 5th valve 14 of door and the 6th valve 16 are closed, and start the first suction pump 8, the acid pickle in spent acid reservoir 1 is evacuated to press filtration
After machine 3 carries out press filtration, the filtrate after press filtration is discharged into intermediate pool 23.
Run a period of time after, press filtration generate waste residue in filter press 3 saturation, at this moment close the first valve 6 and close
First suction pump 8 opens the 5th valve 14, is passed through compressed air, makes useless in pipeline, in the first suction pump 8 and in filter press 3
Acid solution is all discharged under the promotion of differential pressure action in intermediate pool 23.
The 5th valve 14, the 11st valve 22 are then shut off, the secondth valve 7 and the 4th valve 12 is opened, opens simultaneously
First suction pump 8, the water in clear water reserviors 2 is pumped into filter press 3, rinses the filter residue in filter press 3, and then flushing waste water is discharged into
In wastewater disposal basin 11.
After above-mentioned flushing, close the second valve 7 and close the first suction pump 8, open the 5th valve 14, be passed through compression
Air makes the waste water in pipeline, in the first suction pump 8 and in filter press 3 all be discharged to wastewater disposal basin under the promotion of differential pressure action
In 11.
The 5th valve 14, the 4th valve 12 and the 7th valve 17 are turned off, the 6th valve 16 is opened, is passed through compressed air,
The remaining filter residue in filter press 3 is made all to be expelled in filter residue recycling and processing device 26 from the sludge outlet of filter press 3.
It repeats the above process, after the liquid level in intermediate pool 23 reaches the liquid level of setting, opens the 3rd valve 9, the tenth valve
21 and the 9th valve 20 of door, closes the 8th valve 19 and the 12nd valve 25, opens the second suction pump 10, will be in intermediate pool 23
Acid pickle is pumped into thickening filtration device 4 and further filters, and the acid clear water being obtained by filtration is discharged in collecting pit 5.
After running a period of time, the 3rd valve 9, the tenth valve 21 and the 9th valve 20 are turned off, closes the second suction pump
10, the 8th valve 19 and the 12nd valve 25 are opened, is passed through compressed air, makes the concentrate in filtering-condensing apparatus dense from filtering
The concentrated water spout of compression apparatus, which is all flow back to, carries out circular treatment in spent acid reservoir 1.
In conclusion the advantageous effect of the solid-liquid separation system of the present invention is：
(1) solid-liquid separation system of the invention carries out separation of solid and liquid, and press filtration again by filter press and thickening filtration device
After machine carries out separation of solid and liquid to acid pickle, the filter residue in filter press is rinsed with clear water, makes entire solid-liquid separation system work
During work, need not replace filter core will not occur stopping state, save cost and extend the service life of filter press, through this
The solid and liquid obtained after system separation can recycle, and not only realize zero pollutant discharge, effectively reduce processing
Cost and load, and solve the problems, such as the wasting of resources, and production and the processing cost of enterprise are greatly reduced, have very big
Social and economic benefit.
(2) solid-liquid separation system high degree of automation of the invention, operational safety, stabilization, easy to operate, management it is convenient and
Treatment effect is more preferable.
(3) further, solid-liquid separation system of the invention is by using compressed air, is ensureing filter press and concentrated
In the case that filter device does not block, reduce because cleaning the wastewater flow rate generated and being further reduced maintenance cost.
Although the above more term for having used expression structure, such as " spent acid reservoir ", " thickening filtration device ", " collection
Pond " etc., but it does not preclude the possibility of using other terms.The use of these items is only for more easily describe and explain
The essence of the present invention；Any one of the additional limitations is construed as all to disagree with spirit of the present invention.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of solid-liquid separation system, it is characterised in that：Including spent acid reservoir, clear water reserviors, filter press, thickening filtration device and receipts
Ji Chi；
The spent acid reservoir and the clear water reserviors are connected by the first suction pump with the inlet of the filter press, the spent acid
The water outlet of reservoir is equipped with the first valve, and the water outlet of the clear water reserviors is equipped with the second valve；
The water outlet of the filter press is connected by the second suction pump with the inlet of the thickening filtration device, and described second takes out
The entrance of sucking pump is equipped with the 3rd valve；
The clean water outlet of the thickening filtration device is connected with the collecting pit；
The water outlet of the filter press is also connected to wastewater disposal basin, and the entrance of the wastewater disposal basin is equipped with the 4th valve.
2. solid-liquid separation system according to claim 1, it is characterised in that：The first compressed air generator is further included,
First compressed air generator is connected by the first suction pump with the inlet of the filter press, and first compression is empty
The gas outlet of gas generating means is equipped with the 5th valve.
3. solid-liquid separation system according to claim 1, it is characterised in that：The second compressed air generator is further included,
The water outlet of the filter press is connected with second compressed air generator, and second compressed air generator goes out
Gas port is equipped with the 6th valve.
4. solid-liquid separation system according to claim 3, it is characterised in that：The inlet of the filter press is equipped with the 7th valve
Door.
5. solid-liquid separation system according to claim 1, it is characterised in that：The 3rd compressed air generator is further included,
The clean water outlet of the thickening filtration device is connected with the 3rd compressed air generator, and the 3rd compressed air fills
The gas outlet put is equipped with the 8th valve, and the entrance of the collecting pit is equipped with the 9th valve.
6. solid-liquid separation system according to claim 5, it is characterised in that：The inlet of the thickening filtration device is equipped with
Tenth valve.
7. solid-liquid separation system according to claim 1, it is characterised in that：The water outlet of the filter press and described second
Intermediate pool is equipped between the entrance of suction pump, the entrance of the intermediate pool is equipped with the 11st valve.
8. solid-liquid separation system according to claim 7, it is characterised in that：Liquid level gauge is provided in the intermediate pool.
9. solid-liquid separation system according to claim 1, it is characterised in that：Filter residue recycling and processing device is further included, it is described
The sludge outlet of filter press is connected with the filter residue recycling and processing device.
10. solid-liquid separation system according to claim 1, it is characterised in that：The concentrated water spout of the thickening filtration device is set
The 12nd valve is equipped with, the concentrated water spout of the thickening filtration device is connected with the spent acid reservoir.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410606221.7A CN118495616A (en) | 2018-02-08 | 2018-02-08 | Solid-liquid separation system and solid-liquid separation method |
| CN201810126081.8A CN108043108A (en) | 2018-02-08 | 2018-02-08 | A kind of solid-liquid separation system |
| PCT/CN2018/105808 WO2019153744A1 (en) | 2018-02-08 | 2018-09-14 | Solid-liquid separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019153744A1 (en) * | 2018-02-08 | 2019-08-15 | 福建希海环保科技有限公司 | Solid-liquid separation system |
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Also Published As
| Publication number | Publication date |
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| CN118495616A (en) | 2024-08-16 |
| WO2019153744A1 (en) | 2019-08-15 |
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