CN205569860U - Chemical fibre titanium white powder washing system - Google Patents
Chemical fibre titanium white powder washing system Download PDFInfo
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- CN205569860U CN205569860U CN201620381091.2U CN201620381091U CN205569860U CN 205569860 U CN205569860 U CN 205569860U CN 201620381091 U CN201620381091 U CN 201620381091U CN 205569860 U CN205569860 U CN 205569860U
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Abstract
The utility model discloses a chemical fibre titanium white powder washing system belongs to the titanium white powder field of handling. The utility model discloses a washing system has set up modified groove and ammonium salt metering tank, sets up washing water processing system at frame filter press's delivery port to set up online conductivity meter between frame filter press and washing water processing system, all be provided with the solenoid valve on the water inlet of every pipeline among the washing water processing system, wash water through the online conductivity meter and the cooperation control of solenoid valve and get into the corresponding pipeline among the washing water processing system. Thick liquids after will handling earlier during the washing are added the ammonium salt and are modified, and increase titanium white powder particle diameter washs through positive backwash, and it is that the water that uses the backwash to retrieve washs just to wash, and the backwash is with the desalinized water washing, carries out thick liquids with positive backwash water through filtration equipment and retrieves. The utility model provides yield are received to high titanium white powder, have reduced the use amount of desalinized water moreover, and are energy -concerving and environment -protective.
Description
Technical field
This utility model relates to titanium dioxide processing technology field, more particularly, it relates to a kind of chemical fibre of titanium dioxide powder washing system.
Background technology
The titanium dioxide that chemical fibre field uses at present is mainly anatase thpe white powder, and the factory of the chemical fiber special titanium pigment of domestic production
Family is less, higher to titanium dioxide granularity requirements mainly due to chemical fibre titanium dioxide, and in process of production, it is possible to use roll-in
The serial connection technologies such as mill, colloid mill, ball mill, sand mill reduce the particle diameter of titanium dioxide, do inorganic coating by inorganic surface treatment
Modification, less through the titanium dioxide particle diameter of inorganic coating, have in washing process and the most serious wear filter phenomenon, cause a large amount of titanium dioxide
Running off, titanium dioxide yield does not reaches requirement, serious environment pollution；At present for reducing titanium dioxide loss, part producer reduces washing
Time, cause finished product titanium dioxide resistivity on the low side, do not reach use requirement.Therefore, the loss how reducing titanium dioxide becomes this
The insoluble technical barrier in field.
China Patent No.: ZL 201120246288.2, authorized announcement date: on February 29th, 2012, invention and created name is:
Recycling device for titanium white postprocessing washing liquid, this application case discloses recycling device for titanium white postprocessing washing liquid,
Including filter press, the backwash water import of filter press is connected with backwash tank by backwash water pipe；Filter press
The wash water import is connected with the wash water groove by the wash water pipe；The backwash water of filter press exports by backwash outlet pipe and mistake
Filter is connected, and the wash water outlet of filter press is connected with filter by just washing out water pipe；Backwash outlet pipe is by anti-
Wash recovery tube to be connected with the wash water groove.The main purpose of this cleaning device is again to recycle rinse water, not
The problem that can improve material loss, it is impossible to solve the technical barrier run at present.
Chinese Patent Application No.: ZL200610040290.8, authorized announcement date: on December 19th, 2007, invention and created name
For: the preparation method of anatase chemical fiber special titanium pigment, carry out acidolysis mainly by sulfuric acid process, leaching reduction, after sedimentation
Titanium liquid, after filtering, obtains filtrate, and filtrate freezing and crystallizing is separated out FeSO4, the filtrate that filtrate refilters rear gained adds
Entering auxiliary agent kind to be hydrolyzed, a large amount of precipitation metatitanic acid precipitate also pass through metatitanic acid solid；With metatitanic acid as raw material, with dense
Sulfuric acid treatment becomes the titanyl sulfate dense titanium liquid of certain F value, then precipitates by salt treatment, washes with water and forges through dry, rotary kiln
Burn and pulverizing is prepared from.The program gives general titanium dioxide preparation method, but does not provide concrete washing scheme,
And it is difficult to therefrom obtain how to reduce the method wearing filter.
Utility model content
1. utility model to solve the technical problem that
The purpose of this utility model is to overcome in prior art wears in chemical fibre of titanium dioxide powder washing process that filter problem is serious, titanium dioxide stream
Losing more deficiency, it is provided that a kind of chemical fibre of titanium dioxide powder washing system, the technical solution of the utility model, after being first about to process
Slurry adds ammonium salt and is modified, and reunion titanium dioxide particle is increased particle diameter, washed by positive and negative, then will just,
Backwash water carries out slurry recovery through filter plant, improves titanium dioxide recovery rate, and reduces the usage amount of desalted water, energy-conservation
Environmental protection.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of chemical fibre of titanium dioxide powder washing system of the present invention, including frame filter press, the wash water groove, backwash tank and hollander tub,
Also include processing pit, modified groove, ammonium salt measuring tank, online conductivity meter and washings processing system, described process pit,
Ammonium salt measuring tank all connects with modified groove, and modified groove connects with the charging aperture of frame filter press, at frame filter press with washings
It is provided with online conductivity meter, on pipeline between reason system on the water inlet of every pipeline in described washings processing system all
It is provided with electromagnetic valve, corresponding to the cooperation control washings entrance washings processing system of electromagnetic valve by online conductivity meter
Pipeline.
As further improvement of the present invention, described washings processing system includes slurry recovery pipe and washings recovery tube
Road, when online conductivity meter measures electrical conductivity more than a value set, washings enter slurry recovery pipe, when measuring conductance
When rate is less than or equal to a value set, washings enter the wash water groove by washings recovery pipe.
As further improvement of the present invention, described slurry recovery pipe includes middle salt divisional processing pipeline, at middle salt divisional processing pipe
Being provided with middle salinity liquid seal trough and the second filter on road, the outlet of described second filter is provided with water pump, going out of this water pump
Mouth draws two branch roads, and a branch road communicates with middle salinity liquid seal trough, and another branch road leads to Desultwater Station, and the second filter
Discharging opening with process pit communicate.
As further improvement of the present invention, described slurry recovery pipe also includes high salt divisional processing pipeline, in high salt divisional processing
Being provided with high salt separatory sealing groove and the first filter on pipeline, the outlet of described first filter is provided with water pump, this water pump
Two branch roads are drawn in outlet, and a branch road communicates with high salt separatory sealing groove, and another branch road leads to waste water station, and the first filter
Discharging opening with process pit communicate.
As further improvement of the present invention, described washings recovery pipe includes low salt liquid seal trough, this low salt liquid seal trough
Outlet connect with the water inlet of the wash water groove.
A kind of chemical fibre of titanium dioxide powder washing methods of the present invention, uses chemical fibre of titanium dioxide powder washing system to wash, the steps include:
Step one, slurry in process pit is proceeded to modified groove, add quality by ammonium salt measuring tank and account for TiO2Content 0.5%-1%
Ammonia salt do modifying agent, increase particle diameter；
Step 2, slurry are pumped to frame filter press after stirring 20～40 minutes in modified groove, stop charging after pressure stability,
Prepare washing；
Step 3, the most just washing and backwash, wash first with the water reclaimed in the wash water groove, washings enter height
Salt divisional processing pipeline；When the electrical conductivity of online conductivity meter is reduced to below b value, switches to backwash tank desalted water and carry out
Washing, salt divisional processing pipeline in washings entrance；When the electrical conductivity of online conductivity meter is reduced to below a value, washings enter
Enter low salt liquid seal trough, go to the wash water groove afterwards for washing next time；
Step 4, after the electrical conductivity of online conductivity meter is less than the setting value in 80～120 μ s/cm intervals, close electromagnetic valve,
Stop washing；
Step 5, slurry in frame filter press is unloaded, proceed to drying system after stirring in hollander tub and be dried, change
NH is resolved in property agent3、CO2And H2O；
Step 6, after 2～3.5 hours wash, open mateiral pump the slurry in the first filter and the second filter and white
Water proceeds to process pit, as TiO in mateiral pump outlet slurry2Content, less than after setting value, is closed mateiral pump, is carried out follow-up washing.
The TiO set2Content value is 55～65g/L, works as TiO2Content is relatively low less than explanation content during this value range, can discharge.
If to reduce TiO further2Content, then need to put into bigger filtration cost.
Controlling at 6.5-9.0 as pH value in processing pit in further improvement of the present invention, step one, ammonia salt is
(NH4)2CO3.In this pH value range, slurry presents subacidity or alkalescence, and the corrosion to equipment is less, Er Qieyi
In the modification of follow-up ammonia salt, ammonia salt fast decoupled will not be made.
As further improvement of the present invention, in step 3, the washings in high salt divisional processing pipeline are carried out through the first filter
Filter, sampling Detection, filter qualified washings through discharge of pipes to waste water station；Defective washings return high salt separatory sealing groove,
The discharge standard wherein arranging the washings to waste water station is TiO2Content ＜ 5g/L.
As further improvement of the present invention, the washings in the middle salt divisional processing pipeline of step 3 were carried out through the second filter
Filter, sampling Detection, filters qualified washings through discharge of pipes to Desultwater Station；Salinity liquid seal trough in the return of defective washings,
The washings discharge standard wherein arriving Desultwater Station is TiO2Content ＜ 1g/L.
As further improvement of the present invention, described b value is 450～600 μ s/cm, and a value is 250～350 μ s/cm.
3. beneficial effect
The technical scheme using the present invention to provide, compared with prior art, has the advantages that
(1) a kind of chemical fibre of titanium dioxide powder washing system of the present utility model, arranges modified groove to add modifying agent, processes at washings
Online conductivity meter is set on pipeline, washing situation, accurate switch valve can be understood in time, rapidly；
(2) a kind of chemical fibre of titanium dioxide powder washing system of the present utility model, line of engagement conductivity meter arrange high salt divisional processing pipeline, in
Salt divisional processing pipeline and washings recovery pipe, can either reclaim the slurry of the rate of wearing, washings classification can be recycled again, carry
High product recovery rate and the utilization rate of washings；
(3) a kind of chemical fibre of titanium dioxide powder washing system of the present utility model, adds modifying agent, quick agglomerated particles, increases particle
Footpath, reduces during washing and wears filter phenomenon, improve titanium dioxide yield, improve titanium dioxide resistivity；With (NH during use4)2CO3Class ammonium
Salt is cooked and can all decompose under modifying agent, high-temperature condition, rapid depolymerization, and titanium dioxide recovers to small particle state again；More preferably
(NH4)2CO3Ammonium salts is decomposed into NH3、H2O and CO2Class gas, NH3Soluble in water, spray is the most absorbable, H2O without
Poison, CO2Class gas can neutralize with alkali liquor, or uses NH3Shower water neutralize, even high altitude discharge, do not affect environment, subtract
Few environmental protection pressure.
Accompanying drawing explanation
Fig. 1 is the washing flow schematic diagram of a kind of chemical fibre of titanium dioxide powder washing system of the present utility model.
Label declaration in schematic diagram: 1, process pit；2, modified groove；3, ammonium salt measuring tank；4, frame filter press；5、
Drying system；6, online conductivity meter；7, high salt separatory sealing groove；8, middle salinity liquid seal trough；9, low salt liquid seal trough；10、
The wash water groove；11, backwash tank；12, hollander tub；13, the first filter；14, the second filter；15, Desultwater Station；
16, mateiral pump.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
In conjunction with Fig. 1, a kind of chemical fibre of titanium dioxide powder washing system of the present invention, including frame filter press 4, the wash water groove 10, backwash
Tank 11, hollander tub 12, process pit 1, modified groove 2, ammonium salt measuring tank 3, online conductivity meter 6 and washings process
System.Processing the material after pit 1 receiving surface processes, ammonium salt measuring tank 3 is used for adding ammonia salt modifying agent, process pit 1,
Ammonium salt measuring tank 3 all connects with modified groove 2, and modified groove 2 connects with the charging aperture of frame filter press 4, for modification is increased
The material of particle diameter proceeds to frame filter press 4.
The wash water groove 10, backwash tank 11 in the present invention are all connected with frame filter press 4, corresponding lead to it and just wash
The mouth of a river and backwash water inlet, and corresponding control valve is set on pipeline, this is also conventional positive and negative to wash method of attachment, it is not necessary to
Special instruction.The discharging opening of frame filter press 4 is connected with drying system 5 by hollander tub 12, and frame filter press 4 is discharged
Material is stirred in hollander tub 12, and subsequently into being dried process in drying system 5, dried titanium dioxide enters gas
Stream pulverizing process, carries out TMP organic coated.
The present invention is provided with online conductivity meter 6 on the pipeline between frame filter press 4 and washings processing system, by
Line conductivity meter 6 detects electrical conductivity to judge salt content in washings.On the water inlet of every pipeline in washings processing system
It is provided with electromagnetic valve, is entered in washings processing system with the control washings that coordinate of electromagnetic valve by online conductivity meter 6
Respective line.
Specifically, washings processing system includes slurry recovery pipe and washings recovery pipe, when online conductivity meter 6 measures
When electrical conductivity is more than a value set, washings enter slurry recovery pipe, when measuring electrical conductivity less than or equal to a value set
Time, washings enter the wash water groove 10 by washings recovery pipe.
Washings recovery pipe includes low salt liquid seal trough 9, the outlet of this low salt liquid seal trough 9 and the water inlet of the wash water groove 10
Mouth connection.Setting a value can be in the range of 250～350 μ s/cm, as a example by 300 μ s/cm, because electrical conductivity can during initial wash
Up to 10000 μ s/cm are the highest, differ greatly with the ion concentration of the electrical conductivity the reclaimed washings less than 300 μ s/cm,
Utilize the washings reclaimed not affect detersive efficiency so just washing, thus reach to save desalted water, reduce the purpose discharged.
In the present invention, slurry recovery pipe includes middle salt divisional processing pipeline, salinity liquid seal trough in being provided with on middle salt divisional processing pipeline
8 and second filter 14, the outlet of described second filter 14 is provided with water pump, and this water delivery side of pump draws two branch roads,
Article one, branch road communicates with middle salinity liquid seal trough 8, and another branch road leads to Desultwater Station 15, and the discharging opening of the second filter 14
Communicate with processing pit 1, and on pipeline, be provided with mateiral pump 16.During use, in washings warp, salinity liquid seal trough 8 proceeds to second
Filter 14, stands, and the supernatant is overflowed, and surveys its titanium dioxide content, qualified after directly go to Demineralized Water Production station, reclaim profit
With, defective unlatching return valve, go to middle salinity liquid seal trough 8 circulating filtration, lower floor's slurry reclaims and goes to process pit 1.
When not being the highest when needing washings example content to be processed, middle salt divisional processing pipeline is set and i.e. can reach classification process mesh
, the slurry in middle salt divisional processing pipeline is recycled.But if ion concentration is relatively big, electrical conductivity is higher, then need
Staged care further.
Further, the slurry recovery pipe of the present invention also includes high salt divisional processing pipeline, is provided with on high salt divisional processing pipeline
High salt separatory sealing groove 7 and the first filter 13, the outlet of the first filter 13 is provided with water pump, and this water delivery side of pump is drawn
Article two, branch road, a branch road communicates with high salt separatory sealing groove 7, and another branch road leads to waste water station, and the going out of the first filter 13
Material mouth communicates with processing pit 1, and is provided with mateiral pump 16 on pipeline.During use, washings proceed to through high salt separatory sealing groove 7
First filter 13, stands, and the supernatant is overflowed, and surveys its titanium dioxide content, qualified after be directly discharged to waste water station, because of washing
Water ions content is higher, recycles the consumption energy bigger；Detect defective unlatching return valve, go to high salt separatory sealing groove
7 circulating filtrations, lower floor's slurry reclaims and goes to process pit 1.
High salt divisional processing pipeline is b with the cut off value of middle salt divisional processing pipeline washed water electrical conductivity, when online conductivity meter 6 is surveyed
When determining electrical conductivity more than the b value set, washings enter high salt divisional processing pipeline, salinity in entering when electrical conductivity is between a-b
Processing pipeline, when electrical conductivity is less than a value, washings recovery pipe proceeds to the wash water groove 10 washings and reuses.Due to
Think that when electrical conductivity is in lower value filtration is qualified, electrical conductivity can be set in and stop less than after 100 μ s/cm or other analog values
Clean.
In first filter 13 and the second filter 14, the recovery interval of lower floor's slurry is carried out, and the most often carries out a period of time
After multiple batches of washing, in two filters, a part of slurry can be assembled, by mateiral pump 16 first filters 13 and the second mistakes
Slurry and plain boiled water in filter 14 proceed to process pit 1, when mateiral pump 16 exports TiO in slurry2After content is less than setting value,
Close mateiral pump 16, carry out follow-up washing.TiO during detection2Content may be set to not higher than 50～70g/L interval in setting value,
Specifically can determine according to the concrete condition of production.
Needing explanation, when first wash, owing to not having the washings reclaimed in the wash water groove 10, available desalted water is carried out
Washing, and in subsequent laundering process, the hydropenic problem of washing of recovery all can be reached by supplementary desalted water.
In addition, it is possible to the washings reclaimed are passed through in backwash tank 11, corresponding advanced backwash, the most just wash, no
Affecting the normal use of this system, concrete set-up mode is not particularly limited.
System diagram in Fig. 1 is only that schematically illustrate, and in pipeline, the conventional valve body of part is without representing in detail, but all has in scheme
Explanation.B value defined in invention is 450～600 μ s/cm, and a value is 250～350 μ s/cm, and the concrete value of its a, b can root
Carrying out selecting to set according to the concrete condition of production, it is critical only that of the present invention carries out classification process modified slurry washing water, with
A takes 300 μ s/cm, b and takes 500 μ s/cm, says a kind of chemical fibre of titanium dioxide powder washing methods of the present invention in conjunction with specific embodiments
Bright.
Embodiment 1
The frame filter press 4 of the present embodiment is 150m2Equipment, first filter the 13, second filter 14 content volume is
200m3, processing pit 1 slurry concentration is 290g/L, and modified groove 2 content volume is 130m3, each correctability 100m3Slurry
Material, (NH4)2CO3Concentration is 100g/L.
Step one, surface process terminates material proceeding to process in pit 1, pH controls at 6.5-7.
Step 2, process disposed slurry is proceeded to modified groove 2, feed 100m3, by TiO2The amount of mass content 0.5% is from ammonium salt meter
Measuring tank 3 metering adds (NH4)2CO3Solution 1.45m3, stir 30 minutes；Then feeding to frame filter press 4, the time is
45 minutes, charging terminal pressure was 552kPa, and display feed volume is 21.5m3, charging terminal pressure general control is 350～550
kPa。
Step 3, the most just wash and backwash:
1), the electromagnetic valve valve of high salt separatory sealing groove 7, electromagnetism on middle salinity liquid seal trough 8, low salt liquid seal trough 9 pipeline are opened
The valve of valve, opens the wash water groove 10 valve, and the washings reclaimed in pumping into the wash water groove 10 in frame filter press 4 start
Washing, online conductivity meter 6 electrical conductivity video data reduces rapidly.Meanwhile, high salt separatory sealing groove 7 and the first mistake are opened
Pump between filter 13, proceeds to the first filter 13 by high salt separatory sealing groove 7 washed water, waits water level in the first filter 13
When exceeding outlet, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 4g/L, qualified, and directly row is to waste water station.
2), online conductivity meter 6 electrical conductivity is when showing 500 μ s/cm, opens middle salinity liquid seal trough 8 valve, closes high salt separatory
Sealing groove 7 valve；The flowing water Valve of the wash water groove 10, opens backwash tank 11 flowing water Valve, starts backwash.Salinity in unlatching
Middle salinity washings are proceeded to the second filter 14 by the pump between liquid seal trough 8 and the second filter 14, wait the second filter 14
When interior water level exceedes outlet position, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 2g/L, qualified, directly proceeds to take off
Washings are carried out desalination recycling by salt water station.
3), online conductivity electrode 6 electrical conductivity is when showing 300 μ s/cm, opens low salt liquid seal trough 9 valve, salinity in closedown
The valve of liquid seal trough 8, proceeds to the wash water groove 10 by oligohaline water in low salt liquid seal trough 9 afterwards, recycles.This is just
Wash water groove 10 washed water can carry out washing next time and use, if water shortage in the wash water groove 10, can be mended by additional desalted water
Fill.
When step 4, the electrical conductivity of online conductivity meter 6 show 100 below μ s/cm, close the flowing water Valve of backwash tank 11,
Stop washing.
Step 5: add bottom water 1.5m in frame filter press 43, start blanking, stir 30 minutes in hollander tub 12, slurry
Proceed to drying system 5 after material is uniform be dried；In dry run, (NH4)2CO3It is decomposed into NH3、H2O and CO2Class
Gas, NH3Soluble in water, spray is the most absorbable, H2O is nontoxic, CO2Class gas can neutralize with alkali liquor, or uses NH3's
Shower water neutralizes, even high altitude discharge.
Step 6, the recovery of slurry:
Slurry blow-off valve and corresponding mateiral pump 16 bottom first filter the 13, second filter 14 is opened at interval of 3 hours,
Filter bottom slurry and plain boiled water go to process pit survey mateiral pump 16 after 1,1 hour and export slurry TiO2Content is 143g/L,
Continue to turn material, after 1.5 hours, survey exit of pump slurry TiO2Content is 59g/L, less than closing blow-off valve during 60g/L with corresponding
Mateiral pump 16.
Embodiment 2:
The frame filter press 4 of the present embodiment is 75m2Equipment, first filter the 13, second filter 14 content volume is
200m3, processing pit 1 slurry concentration is 273g/L, and modified groove 2 content volume is 130m3, each correctability 100m3Slurry
Material, (NH4)2CO3Concentration is 100g/L.
Step one, surface process terminates material proceeding to process in pit 1, pH controls at 6.8-8.0.
Step 2, process disposed slurry is proceeded to modified groove 2, feed 100m3, by TiO2The amount of mass content 1.0% is from ammonium salt meter
Measuring tank 3 metering adds (NH4)2CO3Solution 2.73m3, stir 30 minutes；Then feeding to frame filter press 4, the time is
25 minutes, charging terminal pressure was 495kPa, and display feed volume is 11.8m3。
Step 3, the most just wash and backwash:
1), the electromagnetic valve valve of high salt separatory sealing groove 7, electromagnetism on middle salinity liquid seal trough 8, low salt liquid seal trough 9 pipeline are opened
The valve of valve, opens the wash water groove 10 valve, and the washings reclaimed in pumping into the wash water groove 10 in frame filter press 4 start
Washing, online conductivity meter 6 electrical conductivity video data reduces rapidly.Meanwhile, high salt separatory sealing groove 7 and the first mistake are opened
Pump between filter 13, proceeds to the first filter 13 by high salt separatory sealing groove 7 washed water, waits water level in the first filter 13
When exceeding outlet, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 4g/L, qualified, and directly row is to waste water station.
2), after 20 minutes, when online conductivity meter 6 electrical conductivity shows 500 μ s/cm, open middle salinity liquid seal trough 8 valve, close
Close high salt separatory sealing groove 7 valve；The flowing water Valve of the wash water groove 10, opens backwash tank 11 flowing water Valve, starts backwash.
Middle salinity washings are proceeded to the second filter 14, wait by pump between salinity liquid seal trough 8 and the second filter 14 in unlatching
When in tow filtrator 14, water level exceedes outlet position, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 1g/L, qualified,
Directly proceed to Desultwater Station, washings are carried out desalination recycling.
3), after 40 minutes, when online conductivity electrode 6 electrical conductivity shows 300 μ s/cm, low salt liquid seal trough 9 valve is opened,
The valve of salinity liquid seal trough 8 in closedown, proceeds to the wash water groove 10 by oligohaline water in low salt liquid seal trough 9 afterwards, reclaims
Utilize.
When step 4, the electrical conductivity of online conductivity meter 6 show 100 below μ s/cm, close the flowing water Valve of backwash tank 11,
Stop washing.
Step 5: add bottom water 1.5m in frame filter press 43, start blanking, stir 25 minutes in hollander tub 12, slurry
Proceed to drying system 5 after material is uniform be dried；In dry run, (NH4)2CO3It is decomposed into NH3、H2O and CO2Class
Gas, NH3Soluble in water, spray is the most absorbable, H2O is nontoxic, CO2Class gas can neutralize with alkali liquor, or uses NH3's
Shower water neutralizes, even high altitude discharge.
Step 6, the recovery of slurry:
Slurry blow-off valve and corresponding mateiral pump 16 bottom first filter the 13, second filter 14 is opened at interval of 3 hours,
Filter bottom slurry and plain boiled water go to process pit survey mateiral pump 16 after 1,1 hour and export slurry TiO2Content is 126g/L,
Continue to turn material, after 1.3 hours, survey exit of pump slurry TiO2Content is 45g/L, less than closing blow-off valve during 60g/L with corresponding
Mateiral pump 16.
Embodiment 3:
The frame filter press 4 of the present embodiment is 150m2Equipment, first filter the 13, second filter 14 content volume is
200m3, processing pit 1 slurry concentration is 283g/L, and modified groove 2 content volume is 130m3, each correctability 100m3Slurry
Material, (NH4)2CO3Concentration is 100g/L.
Step one, surface process terminates material proceeding to process in pit 1, pH controls at 6.8-8.5.
Step 2, process disposed slurry is proceeded to modified groove 2, feed 100m3, by TiO2The amount of mass content 1.0% is from ammonium salt meter
Measuring tank 3 metering adds (NH4)2CO3Solution 2.26m3, stir 30 minutes；Then feeding to frame filter press 4, the time is
45 minutes, charging terminal pressure was 534kPa, and display feed volume is 22.1m3。
Step 3, the most just wash and backwash:
1), the electromagnetic valve valve of high salt separatory sealing groove 7, electromagnetism on middle salinity liquid seal trough 8, low salt liquid seal trough 9 pipeline are opened
The valve of valve, opens the wash water groove 10 valve, and the washings reclaimed in pumping into the wash water groove 10 in frame filter press 4 start
Washing, online conductivity meter 6 electrical conductivity video data reduces rapidly.Meanwhile, high salt separatory sealing groove 7 and the first mistake are opened
Pump between filter 13, proceeds to the first filter 13 by high salt separatory sealing groove 7 washed water, waits water level in the first filter 13
When exceeding outlet, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 4.2g/L, qualified, and directly row is to waste water station.
2), online conductivity meter 6 electrical conductivity is when showing 500 μ s/cm, opens middle salinity liquid seal trough 8 valve, closes high salt separatory
Sealing groove 7 valve；The flowing water Valve of the wash water groove 10, opens backwash tank 11 flowing water Valve, starts backwash.Salinity in unlatching
Middle salinity washings are proceeded to the second filter 14 by the pump between liquid seal trough 8 and the second filter 14, wait the second filter 14
When interior water level exceedes outlet position, the water filtered overflows, and its TiO is surveyed in water intaking2Content is 0.74g/L, qualified, directly turns
Enter Desultwater Station, washings are carried out desalination recycling.
3), after 40 minutes, when online conductivity electrode 6 electrical conductivity shows 300 μ s/cm, low salt liquid seal trough 9 valve is opened,
The valve of salinity liquid seal trough 8 in closedown, proceeds to the wash water groove 10 by oligohaline water in low salt liquid seal trough 9 afterwards, reclaims
Utilize.
When step 4, the electrical conductivity of online conductivity meter 6 show 100 below μ s/cm, close the flowing water Valve of backwash tank 11,
Stop washing.
Step 5: add bottom water 1.5m in frame filter press 43, start blanking, stir 30 minutes in hollander tub 12, slurry
Proceed to drying system 5 after material is uniform be dried；In dry run, (NH4)2CO3It is decomposed into NH3、H2O and CO2Class
Gas, NH3Soluble in water, spray is the most absorbable, H2O is nontoxic, CO2Class gas can neutralize with alkali liquor, or uses NH3's
Shower water neutralizes, even high altitude discharge.
Step 6, the recovery of slurry:
Slurry blow-off valve and corresponding mateiral pump 16 bottom first filter the 13, second filter 14 is opened at interval of 2.8 hours,
Filter bottom slurry and plain boiled water go to process pit survey mateiral pump 16 after 1,1 hour and export slurry TiO2Content is 121g/L,
Continue to turn material, after 1.3 hours, survey exit of pump slurry TiO2Content is 39g/L, less than closing blow-off valve during 60g/L with corresponding
Mateiral pump 16.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted, shown in accompanying drawing
Be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area is common
Technical staff is enlightened by it, in the case of creating objective without departing from this utility model, designs and this technology without creative
Frame mode that scheme is similar and embodiment, all should belong to protection domain of the present utility model.
Claims (5)
1. a chemical fibre of titanium dioxide powder washing system, including frame filter press (4), the wash water groove (10), backwash tank (11)
With hollander tub (12), it is characterised in that: also include processing pit (1), modified groove (2), ammonium salt measuring tank (3), online electricity
Electrical conductivity instrument (6) and washings processing system, described process pit (1), ammonium salt measuring tank (3) all connect with modified groove (2)
Logical, modified groove (2) connects with the charging aperture of frame filter press (4), frame filter press (4) and washings processing system it
Between pipeline on be provided with online conductivity meter (6), the water inlet of every pipeline in described washings processing system is respectively provided with
There is electromagnetic valve, corresponding to the cooperation control washings entrance washings processing system of electromagnetic valve by online conductivity meter (6)
Pipeline.
A kind of chemical fibre of titanium dioxide powder washing system the most according to claim 1, it is characterised in that: described washings process system
System includes slurry recovery pipe and washings recovery pipe, when online conductivity meter (6) measures electrical conductivity more than a value set,
Washings enter slurry recovery pipe, and when measuring electrical conductivity less than or equal to a value set, washings are reclaimed by washings
Pipeline enters the wash water groove (10).
A kind of chemical fibre of titanium dioxide powder washing system the most according to claim 2, it is characterised in that: described slurry recovery pipe bag
Include middle salt divisional processing pipeline, salinity liquid seal trough (8) and the second filter (14), institute in being provided with on middle salt divisional processing pipeline
The outlet stating the second filter (14) is provided with water pump, and this water delivery side of pump draws two branch roads, a branch road and middle salinity
Liquid seal trough (8) communicates, and another branch road leads to Desultwater Station (15), and the discharging opening of the second filter (14) with process after
Groove (1) communicates.
A kind of chemical fibre of titanium dioxide powder washing system the most according to claim 3, it is characterised in that: described slurry recovery pipe is also
Including high salt divisional processing pipeline, high salt divisional processing pipeline is provided with high salt separatory sealing groove (7) and the first filter (13),
The outlet of described first filter (13) is provided with water pump, and this water delivery side of pump draws two branch roads, a branch road and high salt
Separatory sealing groove (7) communicates, and another branch road leads to waste water station, and the discharging opening of the first filter (13) with process pit (1)
Communicate.
5. according to a kind of chemical fibre of titanium dioxide powder washing system described in claim 2 or 4, it is characterised in that: described washings reclaim
Pipeline includes low salt liquid seal trough (9), and the outlet of this low salt liquid seal trough (9) connects with the water inlet of the wash water groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620381091.2U CN205569860U (en) | 2016-04-27 | 2016-04-27 | Chemical fibre titanium white powder washing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620381091.2U CN205569860U (en) | 2016-04-27 | 2016-04-27 | Chemical fibre titanium white powder washing system |
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| CN205569860U true CN205569860U (en) | 2016-09-14 |
Family
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| CN201620381091.2U Withdrawn - After Issue CN205569860U (en) | 2016-04-27 | 2016-04-27 | Chemical fibre titanium white powder washing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771352A (en) * | 2016-04-27 | 2016-07-20 | 安徽金星钛白（集团）有限公司 | Chemical-fiber titanium dioxide washing system and chemical-fiber titanium dioxide washing method |
| CN108516583A (en) * | 2018-05-11 | 2018-09-11 | 云南冶金新立钛业有限公司 | The method for preparing Titanium dioxide slurry |
| CN109504132A (en) * | 2018-12-14 | 2019-03-22 | 攀枝花东方钛业有限公司 | Titanium dioxide organic process device and method |
-
2016
- 2016-04-27 CN CN201620381091.2U patent/CN205569860U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771352A (en) * | 2016-04-27 | 2016-07-20 | 安徽金星钛白（集团）有限公司 | Chemical-fiber titanium dioxide washing system and chemical-fiber titanium dioxide washing method |
| CN108516583A (en) * | 2018-05-11 | 2018-09-11 | 云南冶金新立钛业有限公司 | The method for preparing Titanium dioxide slurry |
| CN109504132A (en) * | 2018-12-14 | 2019-03-22 | 攀枝花东方钛业有限公司 | Titanium dioxide organic process device and method |
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