CN106075970A - A kind of acid bath filtering technique and device - Google Patents
A kind of acid bath filtering technique and device Download PDFInfo
- Publication number
- CN106075970A CN106075970A CN201610456552.2A CN201610456552A CN106075970A CN 106075970 A CN106075970 A CN 106075970A CN 201610456552 A CN201610456552 A CN 201610456552A CN 106075970 A CN106075970 A CN 106075970A
- Authority
- CN
- China
- Prior art keywords
- acid
- acid bath
- filter
- waste
- tow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 152
- 238000001914 filtration Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002699 waste material Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000003513 alkali Substances 0.000 claims description 23
- 239000007787 solid Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 9
- 239000002910 solid waste Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of acid bath and filter cleaning device, including tow filter machine, described tow filter machine is provided with air cock, acid inlet valve, go out acid valve and blowoff valve, also include waste acid collection device, flame filter press, filtering residue fixed-end forces device and clean liquid retracting device, described blowoff valve is connected with waste acid collection device, waste acid collection device is connected with flame filter press, flame filter press respectively with filtering residue fixed-end forces device, clean liquid retracting device connects, this device reduces the discharge of acid bath in tow filter device cleaning process, reduce water for cleaning, fall low water consumption, alleviate sewage treatment load, the solid waste formed is easy to send disposal outside.
Description
Technical field
The present invention relates to technical field of viscose production, particularly relate to a kind of acid bath filtering technique and device.
Background technology
The acid bath of viscose rayon enterprise needs process for stabilizing and cleannes, is now used mostly tow filter device and carries out acid bath
Filter, after certain filter cycle, it is necessary to filter (i.e. tow) is carried out with substantial amounts of water or diluted alkaline water, clean
During part acid bath, impurity and sulfide will be had to enter water body, increase concentrated acid and the consumption of water, increase at enterprise's sewage simultaneously
Reason load, increases environmental protection of enterprise risk.Operation labor intensity is big simultaneously, and the backwash cycle is long, and acid bath cleannes are maintained at relatively low water
Flat.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the invention provides a kind of acid bath filtering technique and device, this technique
And device reduces the discharge of acid bath in tow filter device cleaning process, reduce water for cleaning, drop low water consumption, alleviate sewage disposal and bear
Lotus, the solid waste of formation is easy to send disposal outside.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of acid bath filtering technique, it is characterised in that: comprise the technical steps that:
(1) acid bath after filtering is returned into tow filter machine, is then passed through compressed air in tow filter machine and carries out acid bath
Agitate, make the acid bath agitated that the tow in tow filter machine to be carried out；This backwash process, can according to the cleaning performance of tow
To use more than twice, or twice.
(2) waste acid medial launder is sent in the acid bath after cleaning, then with high-pressure pump, acid bath is delivered to plate filter and filter；
(3) acid solution after plate filter filters being sent into acid station acid bath system, the solids after plate filter filters send
Dispose to solidification disposal of waste center.
The time that in step (1), acid bath is agitated by compressed air is 15-30 minute, and the pressure of air is 0.2MPa--
0.25MPa。
The pressure of step (2) mesohigh pump is 0.3MPa--0.6MPa.
After filtering a period of time after plate filter filters, plate filter is carried out neutralizing admittedly by recycling alkali liquor
The pH value of body thing, and the concentration of alkali liquor is 80 grams per liters.
The device of a kind of acid bath filtering technique, including tow filter machine, described tow filter machine is provided with air cock, enters acid
Valve, go out acid valve and blowoff valve, it is characterised in that: also include waste acid collection device, flame filter press, filtering residue fixed-end forces device and
Clean liquid retracting device, described blowoff valve is connected with waste acid collection device, and waste acid collection device is connected with flame filter press, sheet frame mistake
Filter is connected with filtering residue fixed-end forces device, clean liquid retracting device respectively.
Described waste acid collection device includes waste acid collecting tank and waste acid medial launder, and described blowoff valve is with waste acid collecting tank even
Connecing, waste acid collecting tank is connected with waste acid medial launder by waste acid delivery pump, and waste acid medial launder passes through high pressure acid pump and plate-and-frame filtration
Machine connects.
Also including collecting tank, the air inlet of collecting tank is connected with the air vent of tow filter machine, the liquid outlet of collecting tank with
Waste acid collecting tank connects, and the air vent of collecting tank is connected with alkali spray equipment.
Also including alkali groove, alkali groove is connected with flame filter press by high pressure alkali pump.
Also including cleaning sink, the outlet of cleaning sink is connected with the water inlet of flame filter press by clarified water pump, sheet frame
The outlet of filter is connected with the water inlet of cleaning sink.
The invention have the advantages that
1, the present invention existing tow filter device and pipeline are constant, utilize the acid bath after filtering that tow filter device is carried out backwash, use
Compressed air is agitated 15-30 minute, after entering waste acid collecting vessel aerofluxus, and backwash 2 times；Waste acid with being pumped into bucket in the middle of waste acid, then
Being delivered to filter (sheet frame membrane filter) with high-pressure pump filter, the clear liquid after filtration flows back to acid station acid bath system, Gu
Body thing and sulfide form solid, adjust its pH value and become neutrality to deliver to solidification disposal of waste center to be disposed；Whole process need not
Water, also discharges without acid bath, reduces environmental protection of enterprise pressure, also can reduce sulfuric acid consumption.
2, the discharge of acid bath during the present invention reduces the cleaning process of tow filter device, reduces water for cleaning, drops low water consumption, subtracts
Light sewage treatment load, the solid waste of formation is easy to send disposal outside, and the acid bath cleannes after plate filter filters have and carry more greatly
Height, light transmittance 75.3% before backwash, light transmittance 93.4% after backwash；Operation labor intensity reduces.
3, the acid bath after this device will filter is backflowed in tow filter machine by the acid valve that goes out of upper end, the liquid level of its acid bath
Being advisable with submergence tow, send into compressed air by air cock and acid bath is agitated (or agitation), acid bath is at tow filter machine
In spring up up and down the dirt that is attached on tow cleaned, after cleaning, waste acid medial launder is sent in the acid bath containing dirt, utilizes
This acid bath is inputted sheet frame Filtration Filtration by high pressure, and after filtration, the acid solution of cleaning injects clean liquid retracting device, and solid waste sends into filter
Slag fixed-end forces device processes.This device utilizes original pipeline, adds waste acid medial launder and plate filter, it is not necessary to
The utilization of water, reduces the generation of sewage, also anacidity discharge, and it is simple and reasonable.
4, this device also includes alkali groove, and alkali groove is connected with flame filter press by high pressure alkali pump, after frame filter filters
After filtering a period of time, plate filter is carried out and solid waste is adjusted pH value by recycling alkali liquor, is conducive to continuously acid
Bath is filtered, and the process of solid waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Labelling in figure: 1, tow filter machine, 2, pneumatics valve, 3, acid inlet valve, 4, go out acid valve, 5, blowoff valve, 6, collecting tank, 7, waste acid
Collecting tank, 8, waste acid medial launder, 9, flame filter press, 10, waste acid delivery pump, 11, high pressure acid pump, 12, filtering residue fixed-end forces dress
Put, 13, clean liquid retracting device, 14, alkali groove, 15, cleaning sink.
Detailed description of the invention
Prior art acid bath is filtered and is cleaned device, and including tow filter machine, described tow filter machine is provided with air cock, uses
In being passed through compressed air；Acid inlet valve, is used for being passed through acid solution；Go out acid valve, the clear acid after discharging filtration；Water intaking valve, for
Tow filter machine is passed through rinse water and is carried out it；Blowoff valve, cleans the sewage of tow filter machine, opens blowoff valve and be discharged to dirt
Water treatment plant.The cleaning procedure of its tow filter machine is: closes acid inlet valve and goes out acid valve, opening blowoff valve and acid is flow back to receiving slit
After, close blowoff valve, change water intaking valve and pneumatics valve, agitate by compressed air, the substantial amounts of sewage containing acid is led to simultaneously
Cross blowoff valve to enter company's Sewage Plant and process, increase enterprise's sewage treatment load, and environmental protection of enterprise risk.
The present invention is described further below in conjunction with the accompanying drawings:
The present invention, a kind of acid bath filtering technique, comprise the technical steps that:
(1) acid bath after filtering is returned into tow filter machine, is then passed through compressed air in tow filter machine and carries out acid bath
Agitate, make the acid bath agitated that the tow in tow filter machine to be carried out；This backwash process, can according to the cleaning performance of tow
To use more than twice, or twice.The time that acid bath is agitated by compressed air is 15-30 minute, and the pressure of air is
0.2MPa--0.25MPa。
(2) waste acid medial launder is sent in the acid bath after cleaning, then with high-pressure pump, acid bath is delivered to plate filter and filter；High
The pressure of press pump is 0.3MPa--0.6MPa.
(3) acid solution after frame filter filters is sent into acid station acid bath system, the solids after plate filter filtration
Deliver to fixed-end forces center processing,
After plate filter filters a period of time after filtering, plate filter is carried out and to its interior consolidating by recycling alkali liquor
Give up and adjust pH value, and the concentration of alkali liquor is 80 grams per liters.
As it is shown in figure 1, a kind of acid bath is filtered and cleaned device, including tow filter machine 1, tow filter machine 1 is provided with air
Valve 2, acid inlet valve 3, go out acid valve 4 and blowoff valve 5(eliminates water intaking valve, do not use clear water that tow filter machine 1 is carried out), also
Including waste acid collection device, flame filter press 9, filtering residue fixed-end forces device 12 and clean liquid retracting device 13, blowoff valve 5 and waste acid
Collection device connects, and waste acid collection device is connected with flame filter press 9, and flame filter press divides 9 other and filtering residue fixed-end forces devices
12, clean liquid retracting device 13 connects.Solids and sulfide after filtration form solid, deliver to slag fixed-end forces device 12 and carry out
Dispose；Clear liquid after filtration flows back to clean liquid retracting device 13, i.e. acid station acid bath system.
Waste acid collection device includes waste acid collecting tank 7 and waste acid medial launder 8, and described blowoff valve 5 is with waste acid collecting tank 7 even
Connecing, waste acid collecting tank 7 is connected with waste acid medial launder 8 by waste acid delivery pump 10, and waste acid medial launder 8 is by high pressure acid pump 11 and plate
Frame filter 9 connects, and by two-stage (two-speed) pump, dirt is delivered to flame filter press 9 and filters.
Further, also include that collecting tank 6, the air inlet of collecting tank 6 are connected with the air vent of tow filter machine 1, collecting tank 6
Liquid outlet be connected with waste acid collecting tank 7, the air vent of collecting tank 6 is connected with alkali spray equipment.
Further, also include that alkali groove 14, alkali groove 14 are connected with flame filter press 9 by high pressure alkali pump.
Further, also include cleaning sink 15, the outlet of cleaning sink 15 water inlet by clarified water pump Yu flame filter press 9
Mouth connects, and the outlet of flame filter press 9 is connected with the water inlet of cleaning sink 15, makes clear water form circulation.
The work process of the present invention is:
Closing acid inlet valve and blowoff valve, the acid bath after filtering is backflowed in tow filter machine by the acid valve that goes out of upper end, its acid
The liquid level of bath is advisable with submergence tow, sends into compressed air by air cock and acid bath is agitated (or agitation), and acid bath is at silk
Beam filter machine springs up up and down the dirt being attached on tow is cleaned, after cleaning, the acid bath containing dirt is sent in the middle of waste acid
Groove, utilizes high pressure that this acid bath is inputted sheet frame Filtration Filtration, and after filtration, the acid solution of cleaning injects clean liquid retracting device, solid waste
Sending into filtering residue fixed-end forces device to process, whole process is discharged without waste water and gas.
Claims (9)
1. an acid bath filtering technique, it is characterised in that: comprise the technical steps that:
(1) acid bath after filtering is returned into tow filter machine, is then passed through compressed air in tow filter machine and carries out acid bath
Agitate, make the acid bath agitated that the tow in tow filter machine to be carried out；
(2) waste acid medial launder is sent in the acid bath after cleaning, then with high-pressure pump, acid bath is delivered to plate filter and filter；
(3) acid solution after frame filter filters being sent into acid station acid bath system, the solids after frame filter filters is delivered to solid
Useless disposal center is disposed.
Acid bath filtering technique the most according to claim 1, it is characterised in that: in step (1), acid bath is carried out by compressed air
The time agitated is 15-30 minute, and the pressure of air is 0.2MPa--0.25MPa.
Acid bath filtering technique the most according to claim 1, it is characterised in that: the pressure of step (2) mesohigh pump is
0.3MPa--0.6MPa。
Acid bath filtering technique the most according to claim 1, it is characterised in that: also include utilizing alkali liquor that plate filter is entered
Row cleans, and the concentration of alkali liquor is 80 grams per liters.
The device of technique is crossed in a kind of acid bath the most according to claim 1, including tow filter machine (1), described tow filter
Machine (1) is provided with air cock (2), acid inlet valve (3), goes out acid valve (4) and blowoff valve (5), it is characterised in that: also include that waste acid is collected
Device, flame filter press (9), filtering residue fixed-end forces device (12) and clean liquid retracting device (13), described blowoff valve (5) and waste acid
Collection device connect, waste acid collection device is connected with flame filter press (9), flame filter press (9) respectively with filtering residue fixed-end forces
Device (12), clean liquid retracting device (13) connect.
The device of technique is crossed in a kind of acid bath the most according to claim 1, it is characterised in that: described waste acid collection device includes
Waste acid collecting tank (7) and waste acid medial launder (8), described blowoff valve (5) is connected with waste acid collecting tank (7), and waste acid collecting tank (7) leads to
Crossing waste acid delivery pump (10) to be connected with waste acid medial launder (8), waste acid medial launder (8) passes through high pressure acid pump (11) and flame filter press
(9) connect.
The device of technique is crossed in a kind of acid bath the most according to claim 1, it is characterised in that: also include collecting tank (6), collect
The air inlet of tank (6) is connected with the air vent of tow filter machine (1), and the liquid outlet of collecting tank (6) is with waste acid collecting tank (7) even
Connecing, the air vent of collecting tank (6) is connected with alkali spray equipment.
The device of technique is crossed in a kind of acid bath the most according to claim 1, it is characterised in that: also include alkali groove (14), alkali groove
(14) it is connected with flame filter press (9) by high pressure alkali pump.
The device of technique is crossed in a kind of acid bath the most according to claim 1, it is characterised in that: also include cleaning sink (15),
The outlet of cleaning sink (15) is connected by the water inlet of clarified water pump with flame filter press (9), the outlet of flame filter press (9)
It is connected with the water inlet of cleaning sink (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456552.2A CN106075970B (en) | 2016-06-22 | 2016-06-22 | A kind of acid bath filtering technique and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456552.2A CN106075970B (en) | 2016-06-22 | 2016-06-22 | A kind of acid bath filtering technique and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106075970A true CN106075970A (en) | 2016-11-09 |
| CN106075970B CN106075970B (en) | 2018-09-28 |
Family
ID=57238777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610456552.2A Active CN106075970B (en) | 2016-06-22 | 2016-06-22 | A kind of acid bath filtering technique and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106075970B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119918A (en) * | 1997-06-23 | 1999-01-19 | Janome Sewing Mach Co Ltd | Bath water cleaning device |
| CN102179086A (en) * | 2011-04-20 | 2011-09-14 | 无锡恒诚硅业有限公司 | Alkali cleaning system for filter cloth of press filter and cleaning method thereof |
| CN102616999A (en) * | 2012-04-11 | 2012-08-01 | 江苏韦帕环境工程有限公司 | Sewage purifying and recycling device |
| CN103933764A (en) * | 2013-01-21 | 2014-07-23 | 上海熊猫机械(集团)有限公司 | Backflush flow guiding non-return filter device |
| CN104086011A (en) * | 2014-07-07 | 2014-10-08 | 成都丽雅纤维股份有限公司 | Zero discharge process suitable for waste water of viscose fiber industrial acid station |
-
2016
- 2016-06-22 CN CN201610456552.2A patent/CN106075970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119918A (en) * | 1997-06-23 | 1999-01-19 | Janome Sewing Mach Co Ltd | Bath water cleaning device |
| CN102179086A (en) * | 2011-04-20 | 2011-09-14 | 无锡恒诚硅业有限公司 | Alkali cleaning system for filter cloth of press filter and cleaning method thereof |
| CN102616999A (en) * | 2012-04-11 | 2012-08-01 | 江苏韦帕环境工程有限公司 | Sewage purifying and recycling device |
| CN103933764A (en) * | 2013-01-21 | 2014-07-23 | 上海熊猫机械(集团)有限公司 | Backflush flow guiding non-return filter device |
| CN104086011A (en) * | 2014-07-07 | 2014-10-08 | 成都丽雅纤维股份有限公司 | Zero discharge process suitable for waste water of viscose fiber industrial acid station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106075970B (en) | 2018-09-28 |
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