CN102179086A - Alkali cleaning system for filter cloth of press filter and cleaning method thereof - Google Patents
Alkali cleaning system for filter cloth of press filter and cleaning method thereof Download PDFInfo
- Publication number
- CN102179086A CN102179086A CN2011100990760A CN201110099076A CN102179086A CN 102179086 A CN102179086 A CN 102179086A CN 2011100990760 A CN2011100990760 A CN 2011100990760A CN 201110099076 A CN201110099076 A CN 201110099076A CN 102179086 A CN102179086 A CN 102179086A
- Authority
- CN
- China
- Prior art keywords
- alkali
- filter
- pump
- press
- cleaning
- 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
- 239000003513 alkali Substances 0.000 title claims abstract description 106
- 238000004140 cleaning Methods 0.000 title claims abstract description 55
- 239000004744 fabric Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000012065 filter cake Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 239000010865 sewage Substances 0.000 claims abstract description 5
- 239000003518 caustics Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003860 storage Methods 0.000 abstract 3
- 238000011086 high cleaning Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000013505 freshwater Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Images
Landscapes
- Paper (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to an alkali cleaning system for filter cloth of a press filter and a cleaning method thereof. The alkali cleaning system for the filter cloth of the press filter comprises a compressed air storage tank, a filter cake washing pump, a process water pump, a steam pump, an alkali tank, an alkali cleaning pump, sewage treatment ponds, the press filter and pipelines, wherein the whole system is connected through the pipelines, and is provided with corresponding valves; the alkali tank is externally connected with the steam pump and the process water pump; an alkali liquor runback pipeline is connected to the press filter; another pipeline is connected to the alkali cleaning pump; the output pipeline of the alkali cleaning pump and the output pipeline of the compressed air storage tank are converged with the feeding pipeline of the press filter, and then connected to the press filter together; another pipeline of the compressed air storage tank is connected with sewage recycling pipelines; and the output pipeline of the filter cake washing pump is connected to the press filter. In the invention, on the basis of the original press filtering system, the alkali cleaning system is added, so that the alkali cleaning system for the filter cloth of the press filter and the cleaning method thereof are convenient to carry out and have high cleaning efficiency and an good cleaning effect, in addition, the cleaning operations are simplified, the cost is saved, and the production efficiency is ensured.
Description
Technical field
The present invention relates to a kind of canvas press cloth caustic washing system and cleaning method thereof.
Background technology
In carbon white production process, can use filter press and carry out isolated by filtration.And main structure---the filter cloth of filter press, after using certain hour, stopped up by silica particles by thereon micropore, will cause feed time long, and filter cloth itself is very thin, causes the washing filter cakes time to prolong greatly, thereby causes the obvious decline of production capacity and the increase of water consumption, reduce production efficiency, therefore need regularly filter cloth to be cleaned.Cleaning method commonly used at present is to remove with high pressure water washing or with filter cloth to clean, and this kind method not only labour intensity is big, and the cleaning of filter cloth also is difficult to thoroughly.So need a kind of new cleaning method to come filter cloth is cleaned,, guarantee production efficiency to reach excellent cleaning effect.
Summary of the invention
The invention provides a kind of canvas press cloth caustic washing system and cleaning method thereof, cleaning efficiency height not only, and when cleaning filter cloth, can reach excellent cleaning effect, guarantee production efficiency.
For achieving the above object, by the following technical solutions:
A kind of canvas press cloth caustic washing system, comprise filter cake washing pump, alkali groove, treatment tank, filter press, it is characterized in that, described whole system connects by pipeline, and respective valves is installed, described alkali groove is circumscribed with steam pump and technology water pump, and there is an alkali lye return duct to be connected to filter press, another pipeline is connected to the alkali cleaning pump, the output channel of alkali cleaning pump and the output channel of compressed air reservoir insert filter press after the feed pipe of filter press converges, another output channel of described compressed air reservoir is connected with the sewage recovery tube of treatment tank; The output channel of described filter cake washing pump is connected to filter press.
A kind of canvas press cloth alkali cleaning method may further comprise the steps:
A, configuration alkali lye; Check that the liquid level in the alkali groove must not surpass 75% of alkali tankage, alkali concn is 6.0-15.0%, and temperature 50-70 degree is manually controlled the fresh water (FW) pump water adding, descends as temperature, opens steam pump and comes holding temperature, and alkali concn is surveyed in sampling;
After b, alkali lye preparation are finished, open filter press, water manually cleans filter cloth, and the cleaning center charging hole;
C, occlusion pressure filter are opened alkali cleaning pump alkali-feeding valve and are gone out the alkali valve, and other all valves are all closed;
D, unlatching alkali cleaning pump, alkali lye enters filter press by medium pore, discharge from the last tap of filter press, alkali lye flows back to the alkali groove from the alkali lye return duct, allow alkali lye circulation 90---120 minutes, during observe situations such as liquid level, temperature and filter press external leakage in the alkali groove, descend as temperature, the heating of unlatching steam pump maintains the temperature between the 50-70 degree;
E, alkali lye circulation 90---after 120 minutes, close the alkali cleaning pump, open the following discharge ports valve of filter press, all the other valve closings, utilize potential difference to reclaim in the filter press alkali lye to the alkali groove, treat in the alkali lye return duct flow than hour, slowly open the delivery valve of compressed air reservoir, blew five minutes, residue alkali lye in the filter press all is recycled to the alkali groove;
F, open the filter cake washing pump, open water intaking valve and outlet valve, other all valve closings, filtrate is discharged waste water to treatment tank, is washed till pH value to 7.0-9.0, and this process approximately needs 2 hours, and pH value is surveyed in sampling in the washing process;
After g, washing are finished, slowly open compressed air inlet valve and air outlet valve, all the other valves cut out, and blow five minutes;
H, blow finish after, open filter press, checks every block of filter cloth and filter plate, rinse well with hydraulic giant if any foreign material etc., and wash residual alkali lye on the belt feeder;
I, alkali cleaning filter cloth process finish, and open the press filtration feed pump, and the inlet valve of opening the press filtration feed pump carries out normal press filtration operation, begins PH and sulfate that first pays close attention to pulp, can suitably improve the filter cake wash water time.
The present invention is on the basis of original press filtration work system, has added caustic washing system, as alkali cleaning pump, compressed air reservoir or the like, and is provided with sewage recovery pond and alkali lye return duct, has not only saved cost, and has reduced pollution.Therefore native system and method are not only implemented conveniently, and the cleaning efficiency height, can reach excellent cleaning effect when cleaning filter cloth, have simplified cleaning operation, have saved cost, have guaranteed production efficiency.
Description of drawings
According to embodiment and accompanying drawing the present invention is described in further detail below.
Fig. 1 is that the present invention forms structural representation;
Among the figure:
1, compressed air reservoir; 2, press filtration feed pump; 3, filter cake washing pump; 4, technology water pump; 5, steam pump; 6, alkali groove; 7, alkali cleaning pump; 8, treatment tank; 9, filter press.
The specific embodiment
As shown in Figure 1, provided a specific embodiment of the present invention, among Fig. 1, whole caustic washing system connects by pipeline, and be provided with corresponding valve at each pipeline, the efferent duct of the output channel of the output channel of press filtration feed pump 2 and alkali cleaning pump 7 and compressed air reservoir 1 converges the back and inserts filter press 9, another output channel of compressed air reservoir 1 and the drainpipe of filter press 9 converge the back and insert treatment tank 8, described alkali groove 6 is circumscribed with technology water pump 4 and steam pump 5, article one, the alkali lye return duct is connected to filter press 9, and another pipeline is connected to alkali cleaning pump 7.
The alkali cleaning method of this invention may further comprise the steps:
A, configuration alkali lye; Check that the liquid level in the alkali groove 6 must not surpass 75% of alkali tankage, alkali concn is 6.0-15.0%, and temperature 50-70 degree is manually controlled technology water pump 4 and added water, descends as temperature, opens steam pump 5 and comes holding temperature, and alkali concn is surveyed in sampling;
After b, alkali lye preparation are finished, open filter press 9, water manually cleans filter cloth, and the cleaning center charging hole;
C, occlusion pressure filter 9 are opened alkali cleaning pump alkali-feeding valve and are gone out the alkali valve, and other all valves are all closed;
D, unlatching alkali cleaning pump 7, alkali lye enters filter press 9 by medium pore, discharge from the last tap of filter press 9, alkali lye flows back to alkali groove 6 from the alkali lye return duct, allow alkali lye circulation 90---120 minutes, during observe situations such as liquid level, temperature and filter press 9 external leakages in the alkali groove 6, descend as temperature, open steam pump 5 heating, maintain the temperature between the 50-70 degree;
E, alkali lye circulation 90---after 120 minutes, close alkali cleaning pump 7, open the following discharge ports valve of filter press 9, all the other valve closings, utilize potential difference to reclaim in the filter press 9 alkali lye to alkali groove 6, treat in the alkali lye return duct flow than hour, slowly open the delivery valve of compressed air reservoir 1, blew five minutes, residue alkali lye in the filter press 9 all is recycled to alkali groove 6;
F, open filter cake washing pump 3, open water intaking valve and outlet valve, other all valve closings, filtrate is discharged waste water to treatment tank 8, is washed till pH value to 7.0-9.0, and this process approximately needs 2 hours, and pH value is surveyed in sampling in the washing process;
After g, washing are finished, slowly open compressed air inlet valve and air outlet valve, all the other valves cut out, and blow five minutes;
H, blow finish after, open filter press 9, checks every block of filter cloth and filter plate, rinse well with hydraulic giant if any foreign material etc., and wash residual alkali lye on the belt feeder;
I, alkali cleaning filter cloth process finish, and open press filtration feed pump 2, and the inlet valve of opening press filtration feed pump 2 carries out normal press filtration operation, begins PH and sulfate that first pays close attention to pulp, can suitably improve the filter cake wash water time.
The present invention can guarantee the temperature when alkali cleaning is operated, and be provided with alkali lye return duct and treatment tank owing to be added with steam pump 5, not only save cost, and reduced pollution.Therefore native system and method cleaning efficiency height not only, and when cleaning filter cloth, can reach excellent cleaning effect, simplified cleaning operation, saved cost, guaranteed production efficiency.
Claims (2)
1. canvas press cloth caustic washing system, comprise filter cake washing pump (3), alkali groove (6), treatment tank (8), filter press (9), it is characterized in that, described whole system connects by pipeline, and respective valves is installed, described alkali groove (6) is circumscribed with steam pump (4) and technology water pump (5), and there is an alkali lye return duct to be connected to filter press (9), another pipeline is connected to alkali cleaning pump (7), the output channel of the output channel of alkali cleaning pump (7) and compressed air reservoir (1) inserts filter press (9) after the feed pipe of filter press (9) converges, another output channel of described compressed air reservoir (1) is connected with the sewage recovery tube of treatment tank (8), and the output channel of described filter cake washing pump (3) is connected to filter press (9).
2. a canvas press cloth alkali cleaning method is characterized in that, may further comprise the steps:
A, configuration alkali lye; Check that the liquid level in the alkali groove (6) must not surpass 75% of alkali tankage, alkali concn is 6.0-15.0%, and temperature 50-70 degree is manually controlled technology water pump (4) and added water, descends as temperature, opens steam pump (5) and comes holding temperature, and alkali concn is surveyed in sampling;
After b, alkali lye preparation are finished, open filter press (9), water manually cleans filter cloth, and the cleaning center charging hole;
C, occlusion pressure filter (9) are opened alkali cleaning pump alkali-feeding valve and are gone out the alkali valve, and other all valves are all closed;
D, unlatching alkali cleaning pump (7), alkali lye enters filter press (9) by medium pore, discharge from the last tap of filter press (9), alkali lye flows back to alkali groove (6) from the alkali lye return duct, allow alkali lye circulation 90---120 minutes, during observe situations such as liquid level, temperature and filter press (9) external leakage in the alkali groove (6), descend as temperature, open steam pump (5) heating, maintain the temperature between the 50-70 degree;
E, alkali lye circulation 90---after 120 minutes, close alkali cleaning pump (7), open the following discharge ports valve of filter press (9), all the other valve closings, utilize potential difference to reclaim in the filter press (9) alkali lye to alkali groove (6), treat in the alkali lye return duct flow than hour, slowly open the delivery valve of compressed air reservoir (1), blew five minutes, residue alkali lye in the filter press (9) all is recycled to alkali groove (6);
F, open filter cake washing pump (3), open water intaking valve and outlet valve, other all valve closings, filtrate is discharged waste water to treatment tank (8), is washed till pH value to 7.0-9.0, and this process approximately needs 2 hours, and pH value is surveyed in sampling in the washing process;
After g, washing are finished, slowly open compressed air inlet valve and air outlet valve, all the other valves cut out, and blow five minutes;
H, blow finish after, open filter press (9), checks every block of filter cloth and filter plate, rinse well with hydraulic giant if any foreign material etc., and wash residual alkali lye on the belt feeder;
I, alkali cleaning filter cloth process finish, and open press filtration feed pump (2), and the inlet valve of opening press filtration feed pump (2) carries out normal press filtration operation, begins PH and sulfate that first pays close attention to pulp, can suitably improve the filter cake wash water time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110099076.0A CN102179086B (en) | 2011-04-20 | 2011-04-20 | A kind of filter cloth alkali washing system for filter press and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110099076.0A CN102179086B (en) | 2011-04-20 | 2011-04-20 | A kind of filter cloth alkali washing system for filter press and cleaning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179086A true CN102179086A (en) | 2011-09-14 |
| CN102179086B CN102179086B (en) | 2016-04-13 |
Family
ID=44565488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110099076.0A Active CN102179086B (en) | 2011-04-20 | 2011-04-20 | A kind of filter cloth alkali washing system for filter press and cleaning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102179086B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075970A (en) * | 2016-06-22 | 2016-11-09 | 成都丽雅纤维股份有限公司 | A kind of acid bath filtering technique and device |
| CN106215530A (en) * | 2016-08-31 | 2016-12-14 | 瓮福达州化工有限责任公司 | filter cloth cleaning method |
| CN107497171A (en) * | 2017-09-29 | 2017-12-22 | 云南文山铝业有限公司 | Filter cloth regenerating unit and carry out filter cloth regeneration method with it |
| CN108404475A (en) * | 2018-03-05 | 2018-08-17 | 北京环球中科水务科技有限公司 | A kind of situ cleaning device of diaphragm plate frame filter press |
| CN109475794A (en) * | 2016-07-11 | 2019-03-15 | 奥图泰(芬兰)公司 | Horizontal pressure filter with washing liquid recovery, filtration system associated therewith, method of operation and computer program product |
| CN110015706A (en) * | 2019-04-22 | 2019-07-16 | 中国科学院武汉病毒研究所 | Scale removal system and method for continuous biosafety laboratory wastewater treatment equipment |
| CN110465124A (en) * | 2019-08-21 | 2019-11-19 | 利得环境科技（北京）有限公司 | A kind of diaphragm filter press cleaning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157212A (en) * | 1984-08-29 | 1986-03-24 | Kurita Water Ind Ltd | Method for washing porous tube filter |
| JPH09168710A (en) * | 1995-12-20 | 1997-06-30 | Tokuyama Corp | How to recycle filter cloth |
| CN1349846A (en) * | 2000-10-20 | 2002-05-22 | 中国科学院生态环境研究中心 | Cleaning method of superfiltering film for treating reused liquid after cleaning bank note printing plate |
| CN1541747A (en) * | 2003-11-08 | 2004-11-03 | 中国铝业股份有限公司 | Technique for preventing scab and block forming of vertical filter leaf |
| CN1915869A (en) * | 2005-08-19 | 2007-02-21 | 力晶半导体股份有限公司 | Sludge dewatering system and filter cloth automatic cleaning method of filter press sludge dewatering machine |
| CN101455916A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
-
2011
- 2011-04-20 CN CN201110099076.0A patent/CN102179086B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157212A (en) * | 1984-08-29 | 1986-03-24 | Kurita Water Ind Ltd | Method for washing porous tube filter |
| JPH09168710A (en) * | 1995-12-20 | 1997-06-30 | Tokuyama Corp | How to recycle filter cloth |
| CN1349846A (en) * | 2000-10-20 | 2002-05-22 | 中国科学院生态环境研究中心 | Cleaning method of superfiltering film for treating reused liquid after cleaning bank note printing plate |
| CN1541747A (en) * | 2003-11-08 | 2004-11-03 | 中国铝业股份有限公司 | Technique for preventing scab and block forming of vertical filter leaf |
| CN1915869A (en) * | 2005-08-19 | 2007-02-21 | 力晶半导体股份有限公司 | Sludge dewatering system and filter cloth automatic cleaning method of filter press sludge dewatering machine |
| CN101455916A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075970A (en) * | 2016-06-22 | 2016-11-09 | 成都丽雅纤维股份有限公司 | A kind of acid bath filtering technique and device |
| CN109475794A (en) * | 2016-07-11 | 2019-03-15 | 奥图泰(芬兰)公司 | Horizontal pressure filter with washing liquid recovery, filtration system associated therewith, method of operation and computer program product |
| CN109475794B (en) * | 2016-07-11 | 2022-03-15 | 奥图泰(芬兰)公司 | Horizontal pressure filter with wash liquor recovery, filtration system related thereto, method of operation and computer program product |
| CN106215530A (en) * | 2016-08-31 | 2016-12-14 | 瓮福达州化工有限责任公司 | filter cloth cleaning method |
| CN107497171A (en) * | 2017-09-29 | 2017-12-22 | 云南文山铝业有限公司 | Filter cloth regenerating unit and carry out filter cloth regeneration method with it |
| CN108404475A (en) * | 2018-03-05 | 2018-08-17 | 北京环球中科水务科技有限公司 | A kind of situ cleaning device of diaphragm plate frame filter press |
| CN110015706A (en) * | 2019-04-22 | 2019-07-16 | 中国科学院武汉病毒研究所 | Scale removal system and method for continuous biosafety laboratory wastewater treatment equipment |
| CN110015706B (en) * | 2019-04-22 | 2023-05-12 | 中国科学院武汉病毒研究所 | Descaling system and method for continuous biosafety laboratory wastewater treatment equipment |
| CN110465124A (en) * | 2019-08-21 | 2019-11-19 | 利得环境科技（北京）有限公司 | A kind of diaphragm filter press cleaning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102179086B (en) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179086A (en) | Alkali cleaning system for filter cloth of press filter and cleaning method thereof | |
| CN201283274Y (en) | Automatic cleaning microfiltration membrane device | |
| CN103768852B (en) | Back-flushing filter | |
| CN104562165B (en) | Intelligent filter control system | |
| CN101703852A (en) | Ultrasonic-pulse self-cleaning wastewater reusing device and treatment method | |
| CN209596647U (en) | A kind of Treatment of Sludge canvas press cloth cleaning system | |
| CN205676986U (en) | A kind of use in washing machine water purification reclaiming system | |
| CN203999191U (en) | A kind of resistant to pollution novel reverse osmosis membrane treatment system | |
| CN206463799U (en) | A kind of submerged membrane cell system | |
| CN207856476U (en) | A kind of filter plant | |
| CN202052380U (en) | Filter cloth alkali washing system for filter press | |
| CN212618394U (en) | External heating surface system of coal-fired power plant slag water recycling washing boiler | |
| CN216677249U (en) | Candle type filter cloth regenerating device | |
| CN210845408U (en) | Membrane filter press cleaning system | |
| CN201182942Y (en) | Wine liquid terminal gravity flow filter | |
| CN208448738U (en) | A kind of quick reacting cycle cleaning system of canvas press cloth | |
| CN110465124A (en) | A kind of diaphragm filter press cleaning system | |
| CN217593924U (en) | Air-water washing gravity type valveless filter | |
| CN220364593U (en) | Cold rolled silicon steel pickling line circulation system | |
| CN112090281A (en) | Full-automatic external-pressure internal-suction type membrane filtration system and filtration process thereof | |
| CN205699650U (en) | A kind of acid bath is filtered and is cleaned device | |
| CN104562166A (en) | Filter residual liquid draining and recycling system | |
| CN222877886U (en) | Coal bed gas filtering device | |
| CN201519520U (en) | Dirty alkali liquor recovery unit | |
| CN211394060U (en) | Desizing alkali liquor recovery system with washing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |