CN1721036A - Method and apparatus for cleaning microporous ceramic screen plate - Google Patents
Method and apparatus for cleaning microporous ceramic screen plate Download PDFInfo
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- CN1721036A CN1721036A CN 200510040730 CN200510040730A CN1721036A CN 1721036 A CN1721036 A CN 1721036A CN 200510040730 CN200510040730 CN 200510040730 CN 200510040730 A CN200510040730 A CN 200510040730A CN 1721036 A CN1721036 A CN 1721036A
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Abstract
The present invention relates to clean method and deice for mocropore ceramic filter plate used to flotation concentrate and dewater dry characterized in before ultrasonic cleaning, dip filter plate in cleaning lye of 2-8% to reduce the viscosity of bur; use lye of the same or close pH value to inject the plate through inverse cleaning port; start ultrasonic vibration and clean to achieve effect cleaning and recovery the plate filter function; it solves the scrape that adding water-glass for ore dressing leads to filter plate jam and can not be cleaned at the root.
Description
Technical field
The present invention relates to a kind of flotation concentrate and dehydrate, be particularly useful for having the flotation concentrate dehydration of waterglass medicament with microporous ceramic filter plate cleaning method and cleaning device.
Background technology
Mineral aggregate ball milling refinement flotation is that to obtain content low and/or obtain a kind of effective ways of required mineral products from associated minerals.The microporous ceramic filter plate of hollow structure is by the micropore capillary effect, form certain pressure reduction by the negative pressure of vacuum suction force on the filter two sides, filter is under moisture state, rely on capillary effect to make that water is sucked in the ore pulp, and gas and solid particle can not pass through, solid particle is intercepted in filter two sides, thereby reach the Separation of Solid and Liquid of ore pulp.Ceramic filter as resolution element is formed owing to its good solid-liquid separation function, obtains paying attention to and using in flotation essence mine dehydration drying.But according to selected mineral products and mineral reserve difference, people obtain for improving Floatation Concentrate Grade and selectivity mineral sometimes, and can add some medicaments usually improves flotation efficiency, and waterglass often is used as above-mentioned floating agent by first-selection.Yet after adding waterglass in the ore dressing mud, though improved the flotation ore deposit grade and the rate of recovery, but because of the waterglass molecular structure has high adhesiveness, easily cause ore pulp to stick to (especially being mingled with the ore pulp particulate) obstruction filter plate in filter plate surface and the infiltration filter board hole, its chocking-up degree becomes positive correlation with the waterglass consumption, seriously can cause the filter micropore to stop up fully, make filter lose function.And be added with the waterglass ore pulp back that results in blockage and clean very difficult, adopt common filter plate cleaning way---acid soak and backwash+ultrasonic vibration, still be difficult to reach the cleaning and regeneration purpose, so its obstruction can not be cleaned a big serious hindrance that becomes the flotation of puzzlement concentrate.Once taked multiple mode to clean to these people, and for example adopted and in the hollow filter, inject imflammable gas or liquid, and made the baked wheaten cake method of waterglass viscosity reduction by the surface ignition burning, and then clean usually.The method not only effect is very little, and imflammable gas or liquid grasps badly, and filter and filter also can cause damage.
Chinese patent 02118202.7 discloses a kind of in waterglass precise microfiltration process for refining, the blocked back of filter element cleaning way, being that hot water is sent in the screen pipe from the filter liquid outlet, compressed air being sent into from liquid outlet carried out gas in the microfiltration tube again---the water blowback is cleaned; And be aided with and adopt the chemical liquids cyclic chemical to clean.Yet this kind cleaning way also is not suitable for the cleaning of mine essence mine dehydration with ceramic filter plate, because the ceramic filter plate micropore is superfine, gas extremely be difficult to by, waterglass adheres to filter plate surface and blocking microporous with the ore pulp particulate, nos any effect is cleaned in this kind gas---water blowback, so said method filter that the flotation of interpolation waterglass the is resulted in blockage recovery filtering function that gets effective washing.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of cleaning simple, effective, and cost is low, the cleaning method of the microporous ceramic filter plate of good operability.
Another object of the present invention is to provide a kind of isolated plant that on filter, adopts above-mentioned cleaning method.
The present invention's first purpose realizes that main the improvement is when filter is cleaned, and at first injecting alkali concn in pulp tank is the dilution alkali lye of 2-8%, filter is soaked in this alkali lye, waterglass viscosity reduces, and then enters backwash with alkali lye from the backwash mouth, carries out ultrasonic removing simultaneously.Specifically, the cleaning method of microporous ceramic filter plate of the present invention, comprise ultrasonic cleaning, before it is characterized in that ultrasonic cleaning, filter is soaked in the cleaning alkali lye of 2-8%, make the bur viscosity reduction, and then inject filter by the introversion and extroversion backwash by the backwash mouth with the cleaning alkali lye of identical or approaching aforementioned concentration, open ultrasonic vibration, recover filtering function until filter.
The present invention cleans dipping by lye and outwards backwash in the filter plate, its function is to make to stick to waterglass composition viscosity reduction in filter surface and the infiltration plate micropore, soak time is decided on waterglass adhesion situation, soaks usually can make the waterglass viscosity reduction in 10-30 minute, reaches the degree of can removing.Alkali lye is cleaned in recoil, and its concentration can be with to soak concentration of lye suitable, also can slightly change providing concentration range.Said cleaning alkali lye more suitable concentration is alkali concn 3-5%.
Cleaning concentration of lye of the present invention there is no especially accurately qualification, and what the present invention provided only is the preferable effect value of a kind of experiment, alkali concn is low excessively, can cause respectively: a scavenging period is extended, and two cleansing powers reduce, cause cleaning performance to descend, influence filter efficiency once more; Alkali concn is too high, also can cause respectively: one causes and cleans cost and strengthen, and concentration increases and be not directly proportional with cleaning performance, and two too high alkali concns also can cause filtration plant equipment and ceramic filter plate corrosion-damaged.The results showed that the present invention cleans alkali lye and reaches more than the PH10 when basicity, just showing has viscosity reducing effect preferably to waterglass, can obtain removing under ultrasonic vibration.
Cleaning alkali lye of the present invention, the results showed and in principle the preparation alkali source is had no special requirements, but consider from economical and operation, be preferably the alkali sources that is easy to get commonly used such as adopting sodium carbonate, ammoniacal liquor, NaOH, be excellent to adopt the sodium carbonate alkali source especially wherein, it not only has cheap, wide material sources are easy to get, and solubility is good, and solubility is big, prepare cleaning solution easily, operation is also convenient, and production security is good, and minimum to human body, pottery, metal erosion, substantially having no adverse effects, is to remove waterglass to adhere to preferred cleaning alkali lye.
For improving clenaing effect, accelerate cleaning speed, the present invention is a kind of better to be that cleaning alkali lye is suitably heated for example 40-60 ℃, heat is cleaned dipping by lye and by outwards backwash in the filter, has been accelerated cleaning speed and cleaning performance.
Also contain the serious obstruction that other materials cause for some, for example carbonate mineral stops up the filter micropore, can also be aided with the acid solution secondary cleaning after alkali cleaning of the present invention, to improve cleaning performance.
The present invention's second purpose realizes that main the improvement is on the original cleaning device of filter basis, increases dipping by lye and anti-cleaning device again.Specifically, microporous ceramic filter plate cleaning device of the present invention comprises micropore ceramic filter machine and ultrasonic vibration cleaning device, it is characterized in that filter hopper and filter backwash inlet is connected with alkali lye storage tank, NaOH solution circulating pump and valve keyholed back plate road.
Contain solia particle in the alkali lye and to the filter backwash time, result in blockage for preventing to clean, be serially connected with filter in the alkali lye backwash pipeline, clean solid particle in the alkali lye to remove by filter.
To cleaning the alkali lye heating, the present invention cleans and can be provided with electric heater in the alkali lye storage tank or adopt the hollow jacket structure or pass to mode such as vapours in storage tank for effectively, makes to clean alkali lye and obtain heating.
Secondly, for the alkali lye that prevents to heat cools off, and reduce cleaning performance in course of conveying, the present invention can also be serially connected with pipeline heater in the alkali lye transfer pipeline.
In addition, clean between alkali lye storage tank and delivery pump and also be provided with telescopic joint, during with the reduction pump work hard connecting line is caused the harmful effect of vibration.
The present invention also is connected to the earial drainage pressure-control circuit between pump discharge and cleaning alkali lye storage tank, clean alkali lye pressure to regulate, and in addition, the earial drainage pressure-control circuit also has the alkali lye stirring action, can omit and establish the alkali lye agitating device in addition.
The present invention is owing to adopt the filter dipping by lye, thereby make waterglass and the filter adhesion strength is reduced by the ore pulp particulate of waterglass adhesion, and alkali lye backwash, make the waterglass and the ore pulp particulate that are blocked in the filter micropore, viscosity reduction dissolving under alkali lye constantly recoils, under inside and outside cleaning alkali lye and ultrasonic vibration acting in conjunction, can make and adhere to and tamper disengaging filter, make filter stop up mediation, thereby reach filter is effectively cleaned, make filter plate regeneration recover filtering function, add the predicament that the waterglass ore dressing causes the filter obstruction to clean thereby fundamentally solved.Also be pickling+ultrasonic micropore ceramic filter machine that can not reach effective cleaning, a kind of cost-effective cleaning method is provided.The present invention cleans alkali source, and wide material sources are cheap, and it is low to clean cost.Alkali lye is heated, and be aided with pickling again, improved cleaning performance and efficient especially.
Below in conjunction with a specific embodiment, further specify the present invention.
Description of drawings
Accompanying drawing is that the cleaning device that the embodiment of the invention increases is simplified the cleaning process schematic diagram.
The specific embodiment
Embodiment: referring to accompanying drawing, on ceramic filter 1 original cleaning device basis, increase the cleaning alkali lye storage tank 13 that the in-built electrical heater is arranged, internal memory is placed with and is heated to about about 50 ℃, concentration is 3% sodium carbonate aqueous slkali, the outlet of alkali lye storage tank links to each other with the import of circulation delivery pump by valve 12, vibration damping telescopic joint 11, and pump discharge one tunnel is carried to the filter hopper through valve 9, carrier pipe 2 and cleaned alkali lye; Another road links to each other with microporous ceramic filter plate backwash inlet through the filter 6 and the carrier pipe 3 of valve 7, serial connection.All be serially connected with pipeline heater 4 in two transfer pipelines, wherein also be provided with pressure in the backwash pipeline and show or controller 5.Pump discharge also links to each other by valve 8, connecting line 10 and cleaning alkali lye storage tank, forms the earial drainage pressure-control circuit, to regulate backwash alkali lye pressure.
When filter is cleaned, discharge flotation pulp in the lautertuns, open valve 12, circulation delivery pump and valve 9 add the cleaning alkali lye of heating in the filter hopper, fill with the back and close valve 9, start filter the filter rotation was soaked 10-30 minute, make filter surface attachment waterglass softening (time becomes flexible on adhesion and decides); Open ultrasonic vibration, open valve 7 cleans alkali lye to filter backwash mouth injection pressure simultaneously, under ultrasonic vibration and backwash acting in conjunction, make and stop up attachment disengaging filter, above-mentioned cleaning process is recovered filtering function (filter recovery primary colors) until filter.Backwash alkali lye pressure is regulated by valve in the pressure-control circuit 8 and is divided flowing pressure, makes backwash liquor keep about 0.08MPa pressure.During allotment alkali lye, all right shut off valve 9 and valve 7 are opened valve 8, make the alkali lye circulation.
In addition, the present invention can also adopt other to clean alkali lye, and adopts other mode of heatings, as passing to steam in storage tank, or adopts chuck heating, these unsubstantialities to change all to belong to protection domain of the present invention.
Claims (10)
1, the cleaning method of microporous ceramic filter plate, comprise ultrasonic cleaning, before it is characterized in that ultrasonic cleaning, filter is soaked in the cleaning alkali lye of 2-8%, make the bur viscosity reduction, and then, open ultrasonic vibration with identical or inject filter by the introversion and extroversion backwash by the backwash mouth near the cleaning alkali lye of aforementioned concentration, recover filtering function until filter.
2,, it is characterized in that said cleaning concentration of lye is 3-5% according to the cleaning method of the described microporous ceramic filter plate of claim 1.
3, according to the cleaning method of claim 1 or 2 described microporous ceramic filter plates, the alkali source that it is characterized in that said cleaning alkali lye is sodium carbonate, ammoniacal liquor, NaOH.
4,, it is characterized in that said alkali source is a sodium carbonate according to the cleaning method of the described microporous ceramic filter plate of claim 3.
5,, it is characterized in that said cleaning alkali lye is heated to 40-60 ℃ according to the cleaning method of claim 1,2 or 4 described microporous ceramic filter plates.
6,, it is characterized in that using the acid solution secondary cleaning again instead after the alkali cleaning according to the cleaning method of claim 1,2 or 4 described microporous ceramic filter plates.
7, microporous ceramic filter plate cleaning device comprises micropore ceramic filter machine and ultrasonic vibration cleaning device, it is characterized in that filter hopper and filter backwash inlet is connected with alkali lye storage tank, NaOH solution circulating pump and valve control transfer pipeline.
8, according to the described microporous ceramic filter plate cleaning device of claim 7, it is characterized in that being serially connected with pipeline heater in the alkali lye transfer pipeline.
9, according to claim 7 or 8 described microporous ceramic filter plate cleaning devices, it is characterized in that being serially connected with filter in the alkali lye backwash pipeline.
10,, it is characterized in that valve control pressure-control circuit is arranged between alkali lye storage tank and circulating pump according to the described microporous ceramic filter plate cleaning device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100407305A CN100571841C (en) | 2005-06-23 | 2005-06-23 | The cleaning method of microporous ceramic filter plate and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100407305A CN100571841C (en) | 2005-06-23 | 2005-06-23 | The cleaning method of microporous ceramic filter plate and device |
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| CN1721036A true CN1721036A (en) | 2006-01-18 |
| CN100571841C CN100571841C (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100407305A Expired - Fee Related CN100571841C (en) | 2005-06-23 | 2005-06-23 | The cleaning method of microporous ceramic filter plate and device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920137A (en) * | 2010-08-13 | 2010-12-22 | 云南大红山管道有限公司 | Ceramic filtering machine dehydrating system and dehydration technique thereof |
| CN102614706A (en) * | 2012-04-06 | 2012-08-01 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN102940995A (en) * | 2012-11-09 | 2013-02-27 | 江阴市华宏化纤有限公司 | Filter element cleaning device |
| CN103505945A (en) * | 2013-09-18 | 2014-01-15 | 宁波球冠电缆股份有限公司 | Ultrasonic cleaning method for filter plates of VCV (vertical continuous vulcanization) crosslinking unit |
| CN105983548A (en) * | 2015-01-29 | 2016-10-05 | 宝山钢铁股份有限公司 | Cleaning and regeneration method for hot-rolled de-dusting sinter-plate and cleaning device |
| CN107308818A (en) * | 2017-08-15 | 2017-11-03 | 北京东方康明科技开发有限公司 | A kind of millipore filter regeneration treating method and numerical control device |
| CN108786280A (en) * | 2018-06-13 | 2018-11-13 | 山西太钢不锈钢股份有限公司 | A kind of water treatment filter filter element cleaning system and cleaning method |
| CN109529631A (en) * | 2018-12-13 | 2019-03-29 | 合肥信达膜科技有限公司 | A kind of ceramic membrane cleaning method for ceramic filter |
| CN114984653A (en) * | 2022-04-29 | 2022-09-02 | 广东省大宝山矿业有限公司 | Online maintenance method for ceramic filter plate for mineral separation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2497892Y (en) * | 2001-08-25 | 2002-07-03 | 湖南省郴州市山河电子设备有限公司 | Ultrasonic bottle washer |
| SG135959A1 (en) * | 2003-05-21 | 2007-10-29 | Nihon Ceratec Co Ltd | Cleaning method of ceramic member |
| CN2855512Y (en) * | 2005-06-23 | 2007-01-10 | 江苏省宜兴非金属化工机械厂 | Cleaner for microporous ceramic sieve plate |
-
2005
- 2005-06-23 CN CNB2005100407305A patent/CN100571841C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920137B (en) * | 2010-08-13 | 2012-08-22 | 云南大红山管道有限公司 | Ceramic filtering machine dehydrating system and dehydration technique thereof |
| CN101920137A (en) * | 2010-08-13 | 2010-12-22 | 云南大红山管道有限公司 | Ceramic filtering machine dehydrating system and dehydration technique thereof |
| CN102614706B (en) * | 2012-04-06 | 2014-04-02 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN102614706A (en) * | 2012-04-06 | 2012-08-01 | 瓮福（集团）有限责任公司 | On-line cleaning device of calcium carbonate filter cloth and cleaning method |
| CN102940995A (en) * | 2012-11-09 | 2013-02-27 | 江阴市华宏化纤有限公司 | Filter element cleaning device |
| CN103505945B (en) * | 2013-09-18 | 2016-08-10 | 宁波球冠电缆股份有限公司 | A kind of method for suppersonic cleaning of VCV crosslinking unit screen plate |
| CN103505945A (en) * | 2013-09-18 | 2014-01-15 | 宁波球冠电缆股份有限公司 | Ultrasonic cleaning method for filter plates of VCV (vertical continuous vulcanization) crosslinking unit |
| CN105983548A (en) * | 2015-01-29 | 2016-10-05 | 宝山钢铁股份有限公司 | Cleaning and regeneration method for hot-rolled de-dusting sinter-plate and cleaning device |
| CN105983548B (en) * | 2015-01-29 | 2018-08-10 | 宝山钢铁股份有限公司 | A kind of the cleaning and regeneration method and cleaning device of hot rolling dedusting sintered plate |
| CN107308818A (en) * | 2017-08-15 | 2017-11-03 | 北京东方康明科技开发有限公司 | A kind of millipore filter regeneration treating method and numerical control device |
| CN108786280A (en) * | 2018-06-13 | 2018-11-13 | 山西太钢不锈钢股份有限公司 | A kind of water treatment filter filter element cleaning system and cleaning method |
| CN109529631A (en) * | 2018-12-13 | 2019-03-29 | 合肥信达膜科技有限公司 | A kind of ceramic membrane cleaning method for ceramic filter |
| CN109529631B (en) * | 2018-12-13 | 2021-07-23 | 合肥信达膜科技有限公司 | Ceramic membrane cleaning method for ceramic filter |
| CN114984653A (en) * | 2022-04-29 | 2022-09-02 | 广东省大宝山矿业有限公司 | Online maintenance method for ceramic filter plate for mineral separation |
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| CN100571841C (en) | 2009-12-23 |
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