CN106139681A - A kind of phosphor ammonium slurry defecator and the cleaning method of this device - Google Patents
A kind of phosphor ammonium slurry defecator and the cleaning method of this device Download PDFInfo
- Publication number
- CN106139681A CN106139681A CN201610653161.XA CN201610653161A CN106139681A CN 106139681 A CN106139681 A CN 106139681A CN 201610653161 A CN201610653161 A CN 201610653161A CN 106139681 A CN106139681 A CN 106139681A
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- Prior art keywords
- phosphor ammonium
- defecator
- ammonium slurry
- slurry
- filter bag
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- 239000002002 slurry Substances 0.000 title claims abstract description 99
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000004140 cleaning Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- 239000000706 filtrate Substances 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 239000002893 slag Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000005273 aeration Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 23
- 238000007654 immersion Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004074 SiF6 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 tripolyphosphate ammonium salt Chemical class 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/28—Ammonium phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to phosphor ammonium slurry filtration art, a kind of phosphor ammonium slurry defecator and the cleaning method of this device, pass through defecator, including cylinder, porous tube plate, filter bag, remove filtrate notch, phosphor ammonium slurry entrance, solarization air cap, wherein, inner barrel is provided with porous tube plate, hole on porous tube plate connects with the bag mouth of filter bag, on the sidewall at top, filtrate notch it is provided with at cylinder, on the sidewall of bottom, phosphor ammonium slurry entrance and solarization air cap it is respectively arranged with at cylinder, make the filtration yield to phosphor ammonium slurry bigger, filter effect is higher, energy consumption is low, run and maintenance cost is relatively low, cleaned by aeration and sodium hydroxide solution, the slag blanket being attached to filter bag outer surface is loosened, cleaning difficulty is easier to, cleaning frequency shortens, service life of equipment extends.
Description
Technical field
The present invention relates to phosphor ammonium slurry filtration art, a kind of phosphor ammonium slurry defecator and this device
Cleaning method.
Background technology
To separate out a large amount of solid precipitation sludge during wet phosphoric acid by dihydrate standing sedimentation, in sludge, most of solid phases are
Ardealite and (Fe, Al)3KH14(PO4)8·4H2O complex, additionally, containing great amount of soluble impurity in phosphoric acid by wet process, such as Mg2+、
Ca2+、Fe3+、Al3+、SO4 2-And SiF6 2-Deng, in phosphoric acid by wet process with ammonia and in course of reaction, these impurity will generate multiple multiple
Heterocompound, and phosphoric acid and ammonium phosphate product composition, physical property and P will be had a strong impact on2O5Dissolubility etc..Use phosphoric acid by wet process
It is directly produced fine phosphorus ammonium salt product and phosphor ammonium slurry need to be carried out filtering and impurity removing, the otherwise inferior quality of product.
Phosphor ammonium slurry industrial separation equipment mainly has three kinds, i.e. gravitational settler, centrifugal separator and filter.Gravity sinks
Fall device system and device is huge, and investment and operation and maintenance cost are higher, and solid insoluble tiny in full-bodied phosphor ammonium slurry
Be difficult to rapid subsidence, additionally, solid insoluble in gravity settlement process easily because of the reduction of slurry temperature with phosphorus ammonium salt
Crystal separates out, and affects phosphor ammonium slurry utilization rate.Centrifugal separator assembling complexity, inconvenient maintenance, investment and energy consumption are higher, and high viscous
The phosphor ammonium slurry of property easily blocks centrifugal rotatable parts.Filter is currently mainly filter press and band filter etc., mistake
Filter is intermittent operation, and frequently, filter cloth cleans inconvenience in device switching, for filtering the phosphorus ammonium material containing a certain amount of silica gel
Slurry, equipment operation rate is extremely low.
In consideration of it, this researcher is for above-mentioned technological deficiency, phosphor ammonium slurry filter plant is improved, it is provided that one
Plant novel phosphor ammonium slurry defecator.But, this device is to have characteristic based on phosphor ammonium slurry itself to be configured, to reach
Overcome the defect of existing defecator；After but existing filtration is equipped in filtration separating treatment, the most more letter of its cleaning way
Single, and be the most all to use clear water to be rinsed, and in this device, the filter bag of its filter element used is to be attached with in a large number
Slag blanket, use clean water to be difficult to recover the filter capacity of defecator so that service life of defecator shortens, and filters
Measure relatively low.
Summary of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provide a kind of phosphor ammonium slurry defecator with
And the cleaning method of this device.
It is achieved particular by techniques below scheme:
A kind of phosphor ammonium slurry defecator cleaning method, is 3-5 by pH value, and temperature is 70-90 DEG C, solid content 1-2%, phosphorus
The phosphor ammonium slurry of ammonium proportion 1-1.3 is at least 25-35m according to filter capacity3/ h process, after device runs 20-25h continuously,
Being used temperature to be 60-80 DEG C again, mass concentration is that the sodium hydroxide solution of 10-20% soaks filter bag 20-35min,.
Described immersion, it is in immersion process, uses Air Exposure.Described Air Exposure, is with pressure as 0.15-0.35MPa
Compressed air be passed through.
A kind of phosphor ammonium slurry defecator, including cylinder, porous tube plate, filter bag, go filtrate notch, phosphor ammonium slurry entrance,
Solarization air cap, wherein, the hole that inner barrel is provided with on porous tube plate, porous tube plate connects with the bag mouth of filter bag, close at cylinder
It is provided with filtrate notch on the sidewall at top, on the sidewall of bottom, is respectively arranged with phosphor ammonium slurry entrance and aeration at cylinder
Hole.
The longitudinal center line of described solarization air cap is positioned at the bottom of filter bag.
Described device, also includes being arranged on cylinder filtrate refluxing opening on the sidewall at top and removing cleanout fluid notch
With cylinder filter washing water inlet on the sidewall of bottom is set；
Described device, also includes the heavy slurry recoil hole being arranged on cylinder body bottom and is arranged on cylinder near bottom
Light slag slurry recoil hole on sidewall.
The described lower section going cleanout fluid notch to be positioned at filtrate notch.
Described filter bag is provided with support member so that filter bag can support firm molding, and this support member can be certainly
By skidding off；Described filter bag uses polymeric membrane for separation；Described cylinder uses carbon steel lining double-layer glue sheet material matter.
Described device, also includes the support bar for supporting this device；Described support bar is at least 2.
The cleaning method of a kind of above-mentioned phosphor ammonium slurry defecator, is entered phosphor ammonium slurry by phosphor ammonium slurry entrance and filters
Device, and under the effect of solarization air cap so that phosphor ammonium slurry filtrate enters inside filter bag, and phosphor ammonium slurry filtering residue stays filter bag appearance
Face or by light slag slurry recoil hole and heavy slurry recoil hole flow out, return mix with phosphor ammonium slurry after, enter filtration fill
Put so that phosphor ammonium slurry defecator realizes continuous filtration treatment；Filtrate within filter bag is constantly accumulated, and in filter bag appearance
Under the aeration effect in face, it is constantly to going filtrate notch end to increase, until from going filtrate notch to flow into filtrate notch, completing phosphorus ammonium
The filtration of slip；Meanwhile, constantly adhere to filtering residue on the surface of filter bag, treat that filtering residue adheres to so that the ability of defecator is less than
25-35m3During/h, the filtration of arresting stop runs, and pours out the filtrate in filter bag, and puts into cleanout fluid from filter washing water inlet, soaks
20-35min, and the compressed air with pressure as 0.15-0.35MPa is passed through Air Exposure, infiltrates through the cleanout fluid of filter bag from going
Cleanout fluid notch enters and cleans in liquid bath, for cleaning next time, then detects with phosphor ammonium slurry to be filtered, and its filter capacity is at least
For 25-35m3During/h, cleaning completes, and the pH value of phosphor ammonium slurry to be filtered is 3-5, and temperature is 70-90 DEG C, solid content 1-2%, phosphorus
Ammonium proportion 1-1.3；Start runs filters, until the time reaches 20-25h, then is shut down, repeats above-mentioned cleaning method, i.e.
The cleaning in running of the phosphor ammonium slurry defecator can be completed.
Compared with prior art, the technique effect of the present invention is embodied in:
By defecator, including cylinder, porous tube plate, filter bag, remove filtrate notch, phosphor ammonium slurry entrance, solarization air cap, its
In, the hole that inner barrel is provided with on porous tube plate, porous tube plate connects with the bag mouth of filter bag, at the cylinder sidewall near top
On be provided with filtrate notch, on the sidewall of bottom, be respectively arranged with phosphor ammonium slurry entrance and solarization air cap at cylinder so that right
The filtration yield of phosphor ammonium slurry is relatively big, and filter effect is higher, and energy consumption is low, runs and maintenance cost is relatively low, by aeration and hydrogen-oxygen
Changing sodium solution to clean so that the slag blanket being attached to filter bag outer surface loosens, clean difficulty and be easier to, the cleaning frequency shortens, equipment
Service life extends.
And in order to shorten the cleaning frequency to above-mentioned defecator, reducing the cost cleaned, this researcher is by clearly
Washing method is studied, in conjunction with temperature, concentration and the cleaning way of cleanout fluid, enabling recover to filter within 40min
The filter capacity of device, extends the service life of defecator, shortens defecator downtime, improves the unit interval
Filtration yield to phosphor ammonium slurry, energy consumption is relatively low, and cost is relatively low.
Processed as cleanout fluid by sodium hydroxide solution so that chemical action occurs, makes silica gel be converted into readily soluble silicon
Acid sodium, metal tripolyphosphate ammonium salt complex decomposed discharges ammonia, and part metals is converted into and has certain deliquescent M simultaneously
(OH)X, make the filter cake layer adhering to filter membrane surface and the interpore firm compact of filter membrane become loose porous cellular, improve
Cleaning performance to defecator.
After the researcher of the invention by using the sulphuric acid of room temperature, clear water to substitute by sodium hydroxide, according to the present invention
Processing mode be carried out process, result show, sulfuric acid cleaned process need more than 24h, defecator can be made
Filter capacity is recovered to 23m3About/h, uses clean water, needs constantly to be rinsed, and the flushing pressure of clear water needs
Under 6-9MPa, the filter capacity of defecator can be made to recover to 18m3About/h；And also sulphuric acid temperature is adjusted to
80-90 DEG C, after mass concentration is defined as 5-8%, then being carried out defecator, it needs at least 24h can make to filter
The filter capacity of device is recovered to 25m3/ more than h, and this researcher use sodium hydroxide solution be carried out process, its
The filter capacity allowing for defecator within 40min recovers 25m3/ more than h, in particular by sodium hydroxide solution with
60-80 DEG C, mass concentration is that 10-20% is carried out processing, it is possible to make to recover the filtration energy of defecator within 30min
Power, and combine the Air Exposure of aerating system, it is possible to effectively avoid filter cake layer density higher, improve the loose of filter cake layer
Degree, reduces cleaning difficulty.
The researcher of the invention to sodium hydroxide solution as cleanout fluid cleaning treatment time, its dense to sodium hydroxide
Degree, temperature is studied, and is drawn, in temperature one timing, its concentration is about 21%, and its effect, compared with 20%, filters
Ability has declined, and the service life of device decreases；When concentration is 9%, its filter capacity needs recovery time
At least 35min so that the cleaning frequency is longer；Certain in concentration, when temperature is 85 DEG C, its cleaning performance is undesirable, making of equipment
By the lost of life, when temperature is 55 DEG C, its filter capacity reaches about 40min recovery time, and the cleaning frequency is longer, and cost is relatively
High.And in above-mentioned processing procedure, when not carrying out Air Exposure, its cleaning performance is unsatisfactory, the time every time cleaned
Will there is bigger deviation, cause defecator scavenging period is difficult to control to, to this end, by adding Air Exposure so that filter
After slag blanket is loose, using sodium hydroxide solution to clean, its each scavenging period is all at about 30min so that defecator
Filter capacity has returned to 25m3/ more than h, it is seen then that Air Exposure reduces the damage to defecator, extends defecator
Service life.
Accompanying drawing explanation
Fig. 1 is phosphor ammonium slurry filter apparatus configuration schematic diagram.
1-filtrate refluxing opening 2-goes filtrate notch 3-to go cleanout fluid notch 4-porous tube plate 5-filter bag 6-cleanout fluid to enter
9-heavy slurry recoil hole, mouth 7-solarization air cap 8-light slag slurry recoil hole 10-support bar 11-phosphor ammonium slurry entrance 12-cylinder
Body.
Detailed description of the invention
With specific embodiment, technical scheme is further limited below in conjunction with the accompanying drawings, but requirement
The scope of protection is not only limited to description.
Embodiment one
A kind of phosphor ammonium slurry defecator cleaning method, is 3 by pH value, and temperature is 70 DEG C, solid content 1%, phosphorus ammonium proportion 1
Phosphor ammonium slurry be at least 25m according to filter capacity3/ h process, after device runs 20h continuously, then to be used temperature be 60
DEG C, mass concentration is the sodium hydroxide solution immersion filter bag 20min of 10%,.Described immersion, it is in immersion process,
Use Air Exposure.Described Air Exposure, is that the compressed air with pressure as 0.15MPa is passed through.
Embodiment two
A kind of phosphor ammonium slurry defecator cleaning method, is 5 by pH value, and temperature is 90 DEG C, solid content 2%, phosphorus ammonium proportion
The phosphor ammonium slurry of 1.3 is at least 35m according to filter capacity3/ h process, after device runs 25h continuously, then is used temperature
Being 80 DEG C, mass concentration is the sodium hydroxide solution immersion filter bag 35min of 20%,.Described immersion, it is at immersion process
In, use Air Exposure.Described Air Exposure, is that the compressed air with pressure as 0.35MPa is passed through.
Embodiment three
A kind of phosphor ammonium slurry defecator cleaning method, is 4 by pH value, and temperature is 80 DEG C, solid content 1.5%, phosphorus ammonium ratio
The phosphor ammonium slurry weighing 1.2 is at least 30m according to filter capacity3/ h process, after device runs 23h continuously, then is used temperature
Degree is 70 DEG C, and mass concentration is the sodium hydroxide solution immersion filter bag 27min of 15%,.Described immersion, it was soaking
Cheng Zhong, uses Air Exposure.Described Air Exposure, is that the compressed air with pressure as 0.2MPa is passed through.
Embodiment four
A kind of phosphor ammonium slurry defecator, including cylinder 12, porous tube plate 4, filter bag 5, removes filtrate notch 2, phosphor ammonium slurry
Entrance 11, solarization air cap 7, wherein, the hole that cylinder 12 is internally provided with on porous tube plate 4, porous tube plate 4 connects with the bag mouth of filter bag 5
Logical, on the sidewall at top, it is provided with filtrate notch 2 at cylinder 12, is respectively arranged with on the sidewall of bottom at cylinder 12
Phosphor ammonium slurry entrance 11 and solarization air cap 7.
Embodiment five
On the basis of embodiment four, other are all with embodiment four, and the longitudinal center line of described solarization air cap 7 is positioned at filter bag
The bottom of 5.
Embodiment six
On the basis of embodiment four, other, all with embodiment four, described device, also include being arranged on cylinder 12 close
Filtrate refluxing opening on the sidewall at top 1 and remove cleanout fluid notch 3 and the cylinder 12 cleanout fluid on the sidewall of bottom is set
Entrance 6；
Described device, also includes being arranged on the recoil of the heavy slurry bottom cylinder 12 hole 9 and to be arranged on cylinder 12 close
Light slag slurry recoil hole 8 on the sidewall of bottom.
Embodiment seven
On the basis of embodiment four, other are all with embodiment four, and the described cleanout fluid notch 3 that goes is positioned at filtrate notch
The lower section of 2.
Embodiment eight
On the basis of embodiment four, other all with embodiment four, are provided with support member in described filter bag 5 so that filter
Bag 5 can support firm molding, and this support member can freely skid off；Described filter bag 5 uses polymeric membrane for separation；
Described cylinder 12 uses carbon steel to serve as a contrast double-layer glue sheet material matter.
Embodiment nine
On the basis of embodiment four, other all with embodiment four, described device, also include for supporting this device
Support bar 10；Described support bar is at least 2.
Embodiment ten
On the basis of above-described embodiment, it is specific to above-mentioned phosphor ammonium slurry defecator and is carrying out at phosphor ammonium slurry filtration
During reason, the cleaning method of filter type and phosphor ammonium slurry defecator is: entered by phosphor ammonium slurry entrance 11 by phosphor ammonium slurry
Enter defecator, and under the effect of solarization air cap 7 so that it is internal that phosphor ammonium slurry filtrate enters filter bag 5, and phosphor ammonium slurry filtering residue is stayed
Filter bag outer surface or by light slag slurry recoil hole 8 and heavy slurry recoil hole 9 flow out, return mix with phosphor ammonium slurry after,
Enter defecator so that phosphor ammonium slurry defecator realizes continuous filtration treatment；Filtrate within filter bag 5 is constantly accumulated,
And under the aeration effect of filter bag 7 outer surface, it is constantly to going filtrate notch 2 end to increase, until from going filtrate notch 2 to flow into filter
Liquid bath mouth, completes the filtration of phosphor ammonium slurry；Meanwhile, constantly adhere to filtering residue on the surface of filter bag 5, treat that filtering residue adheres to so that mistake
The ability of filter device is less than 25-35m3During/h, the filtration of arresting stop runs, and pours out the filtrate in filter bag 5, and enters from cleanout fluid
Mouthfuls 6 put into cleanout fluid, soak 20-35min, and the compressed air with pressure as 0.15-0.35MPa be passed through Air Exposure, infiltration
Enter the cleanout fluid of filter bag 5 and clean liquid bath from going cleanout fluid notch 3 to enter, for cleaning next time, then with phosphorus ammonium material to be filtered
Slurry detection, its filter capacity is at least 25-35m3During/h, cleaning completes, and the pH value of phosphor ammonium slurry to be filtered is 3-5, and temperature is
70-90 DEG C, solid content 1-2%, phosphorus ammonium proportion 1-1.3；Start runs filters, until the time reaches 20-25h, then is shut down,
Repeat above-mentioned cleaning method, the cleaning in running of the phosphor ammonium slurry defecator can be completed.Cleanout fluid is that temperature is
60-80 DEG C, mass concentration is the sodium hydroxide solution of 10-20%.
Claims (10)
1. a phosphor ammonium slurry defecator cleaning method, it is characterised in that be 3-5 by pH value, temperature is 70-90 DEG C, containing solid
Amount 1-2%, the phosphor ammonium slurry of phosphorus ammonium proportion 1-1.3 is at least 25-35m according to filter capacity3/ h process, treats that device runs continuously
After 20-25h, then being used temperature to be 60-80 DEG C, mass concentration is that the sodium hydroxide solution of 10-20% soaks filter bag 20-
35min,.
2. phosphor ammonium slurry defecator cleaning method as claimed in claim 1, it is characterised in that described immersion, it is in leaching
During bubble, use Air Exposure.
3. phosphor ammonium slurry defecator cleaning method as claimed in claim 2, it is characterised in that described Air Exposure, be
Compressed air with pressure as 0.15-0.35MPa is passed through.
4. a phosphor ammonium slurry defecator, it is characterised in that include cylinder (12), porous tube plate (4), filter bag (5), go filtrate
Notch (2), phosphor ammonium slurry entrance (11), solarization air cap (7), wherein, cylinder (12) is internally provided with porous tube plate (4), antipriming pipe
Hole on plate (4) connects with the bag mouth of filter bag (5), is provided with filtrate notch (2) at cylinder (12) on the sidewall at top,
On the sidewall of bottom, it is respectively arranged with phosphor ammonium slurry entrance (11) and solarization air cap (7) at cylinder (12).
5. phosphor ammonium slurry defecator as claimed in claim 4, it is characterised in that the axial centre of described solarization air cap (7)
Line is positioned at the bottom of filter bag (5).
6. phosphor ammonium slurry defecator as claimed in claim 4, it is characterised in that described device, also includes being arranged on cylinder
The body (12) filtrate refluxing opening (1) on the sidewall at top and remove cleanout fluid notch (3) and the close bottom of cylinder (12) is set
Sidewall on filter washing water inlet (6)；
Described device, also includes being arranged on heavy slurry recoil hole (9) of cylinder (12) bottom and being arranged on cylinder (12) leaning on
Light slag slurry recoil hole (8) on the sidewall of nearly bottom.
7. phosphor ammonium slurry defecator as claimed in claim 4, it is characterised in that the described cleanout fluid notch (3) that goes is positioned at
Go to the lower section of filtrate notch (2).
8. phosphor ammonium slurry defecator as claimed in claim 4, it is characterised in that be provided with support in described filter bag (5)
Part so that filter bag (5) can support firm molding, and this support member can freely skid off；Described filter bag (5) uses
Polymeric membrane for separation；Described cylinder (12) uses carbon steel lining double-layer glue sheet material matter.
9. phosphor ammonium slurry defecator as claimed in claim 4, it is characterised in that described device, also includes for supporting
The support bar (10) of this device；Described support bar is at least 2.
10. the cleaning method of the phosphor ammonium slurry defecator as described in any one of claim 4-9, it is characterised in that by phosphorus ammonium
Slip is entered defecator by phosphor ammonium slurry entrance (11), and under the effect of solarization air cap (7) so that phosphor ammonium slurry filtrate enters
Filter bag (5) is internal, and phosphor ammonium slurry filtering residue is stayed filter bag outer surface or recoiled by light slag slurry recoil hole (8) and heavy slurry
Hole (9) is flowed out, and returns after mixing with phosphor ammonium slurry, enters defecator so that phosphor ammonium slurry defecator realizes filtering continuously
Process；The filtrate of filter bag (5) inside is constantly accumulated, and under the aeration effect of filter bag (7) outer surface, it is constantly to going filtrate
Notch (2) end increases, until from going filtrate notch (2) to flow into filtrate notch, completing the filtration of phosphor ammonium slurry；Meanwhile, at filter bag
(5) filtering residue is constantly adhered on surface, treats that filtering residue adheres to so that the ability of defecator is less than 25-35m3During/h, arresting stop
Filtration run, pour out the filtrate in filter bag (5), and put into cleanout fluid from filter washing water inlet (6), soak 20-35min, and with
Pressure is that the compressed air of 0.15-0.35MPa is passed through Air Exposure, infiltrates through the cleanout fluid of filter bag (5) from removing cleanout fluid notch
(3) entering in cleaning liquid bath, for cleaning next time, then detect with phosphor ammonium slurry to be filtered, its filter capacity is at least 25-
35m3During/h, cleaning completes, and the pH value of phosphor ammonium slurry to be filtered is 3-5, and temperature is 70-90 DEG C, solid content 1-2%, phosphorus ammonium ratio
Weight 1-1.3；Start runs filters, until the time reaches 20-25h, then is shut down, repeats above-mentioned cleaning method, can be complete
Become the cleaning in running of the phosphor ammonium slurry defecator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653161.XA CN106139681B (en) | 2016-08-11 | 2016-08-11 | A kind of cleaning method of phosphor ammonium slurry filter device and the device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653161.XA CN106139681B (en) | 2016-08-11 | 2016-08-11 | A kind of cleaning method of phosphor ammonium slurry filter device and the device |
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| Publication Number | Publication Date |
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| CN106139681A true CN106139681A (en) | 2016-11-23 |
| CN106139681B CN106139681B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610653161.XA Active CN106139681B (en) | 2016-08-11 | 2016-08-11 | A kind of cleaning method of phosphor ammonium slurry filter device and the device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904607A (en) * | 2017-11-09 | 2018-04-13 | 贵阳开磷化肥有限公司 | A kind of cleaning method for producing industrial monoammonium tube still heater |
Citations (4)
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|---|---|---|---|---|
| WO2000010681A1 (en) * | 1998-08-19 | 2000-03-02 | Khs Maschinen- Und Anlagenbau Ag | Method for cleaning candles in a candle filter |
| CN101468265A (en) * | 2007-12-29 | 2009-07-01 | 上海同济科蓝环保设备工程有限公司 | Microporous film filter for acid liquor filtering |
| CN104771945A (en) * | 2015-04-29 | 2015-07-15 | 湖北君集水处理有限公司 | Can-type filter pipe filter separator |
| CN205886348U (en) * | 2016-08-11 | 2017-01-18 | 贵阳开磷化肥有限公司 | Phosphorus ammonium ground paste filter equipment |
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2016
- 2016-08-11 CN CN201610653161.XA patent/CN106139681B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000010681A1 (en) * | 1998-08-19 | 2000-03-02 | Khs Maschinen- Und Anlagenbau Ag | Method for cleaning candles in a candle filter |
| CN101468265A (en) * | 2007-12-29 | 2009-07-01 | 上海同济科蓝环保设备工程有限公司 | Microporous film filter for acid liquor filtering |
| CN104771945A (en) * | 2015-04-29 | 2015-07-15 | 湖北君集水处理有限公司 | Can-type filter pipe filter separator |
| CN205886348U (en) * | 2016-08-11 | 2017-01-18 | 贵阳开磷化肥有限公司 | Phosphorus ammonium ground paste filter equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904607A (en) * | 2017-11-09 | 2018-04-13 | 贵阳开磷化肥有限公司 | A kind of cleaning method for producing industrial monoammonium tube still heater |
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| Publication number | Publication date |
|---|---|
| CN106139681B (en) | 2019-02-15 |
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