LV13235B - Filtering element for natural and sewage water purification - Google Patents
Filtering element for natural and sewage water purification Download PDFInfo
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- LV13235B LV13235B LV040041A LV040041A LV13235B LV 13235 B LV13235 B LV 13235B LV 040041 A LV040041 A LV 040041A LV 040041 A LV040041 A LV 040041A LV 13235 B LV13235 B LV 13235B
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Abstract
Description
Filtrējošs elements dabas ūdens un notekūdeņu attīrīšanaiA filtering element for purifying natural water and wastewater
Izgudrojuma aprakstsDescription of the Invention
Izgudrojums attiecas uz cietiem filtrējošiem elementiem/blokiem, kas izmantojami ūdens attīrīšanai un notekūdeņu attīrīšanai komunālajā saimniecībā.The invention relates to solid filtering elements / units for use in water treatment and sewage treatment in a utility household.
Ir zināmi [1; 2] porainie filtrējošie elementi uz graudaino minerālmateriālu, piemēram, smilts, grants, un cementa, fenolsveķu, bakelīta, laku un citu saistvielu bāzes, bet zināmie filtrējišie elementi ar ūdeni piesātinātā stāvoklī ir trausli un neiztur deformāciju, kas rodas, ūdenim sasalstot to porās.[1; 2] porous filtering elements based on granular minerals such as sand, gravel, and cement, phenolic resin, bakelite, varnish and other binders, but known water-saturated filtering elements are brittle and do not withstand the deformation caused by freezing of water in their pores.
Izgudrojuma mērķis ir radīt cietu aukstumizturīgu filtrējošu elementu. Šo mērķi var sasniegt, ja cieta filtrējoša elementa veidošanā kā saistvielu pielieto termoplastiskus polimērus, kuriem pie negatīvām temperatūrām ir lielas spējas uz augsti elastiskām deformācijām, piem., sevišķi maza blīvuma polietilēns šo īpašību saglabā līdz aptuveni -80°C temperatūrai.The object of the invention is to provide a solid cold-resistant filtering element. This goal can be achieved by using thermoplastic polymers as binder in the formation of a rigid filtering element, which at high temperatures have a high capacity for highly elastic deformation, e.g.
Šai izgudrojumā piedāvāts aukstumizturīgs ciets filtrējošais elements uz frakcionētu graudainu minerālmateriālu (smilts, grants, šķembas, keramzīts, ķieģeļu lauskas, sasmalcināti stikla atkritumi) un termoplastisku polimērmateriālu (polietilēns, polipropilēns, polietilēntereftalāts), ko izmanto kā saistvielu, bāzes. Minētajiem termoplastiskajiem polimēriem pie negatīvām temperatūrām ir lielas spējas uz atgriezeniskām (augsti elastiskām) deformācijām, kas nodrošina filtrējošā elementa aukstumizturību ar ūdeni piesātinātā stāvoklī pie negatīvām temperatūrām. Filtrējošā elementa formēšana notiek, kad izkusušais polimērs apskalo iepriekš sakarsēto graudaino minerālmateriālu. Polimēra daļiņām maisītājā kontaktējoties ar graudainā minerālmateriāla daļiņām, sakarsētām līdz polimēra kušanas temperatūrai, tās sakarst, izkūst un salīp. Komponentu maisīšanas gaitā ap katru minerālmateriāla graudiņu veidojas polimēra plēvīte.The present invention provides a frost-resistant solid filter element based on fractionated granular mineral materials (sand, gravel, crushed stone, expanded clay, brick fragments, broken glass waste) and thermoplastic polymeric material (polyethylene, polypropylene, polyethylene terephthalate) as a base. These thermoplastic polymers have high potential for reversible (highly elastic) deformation at negative temperatures, which provides the filter element with cold water saturation at negative temperatures. Formation of the filtering element occurs when the molten polymer ishes over the preheated granular material. The polymer particles in the mixer are heated, melted and clumped in contact with the granular particles heated to the melting point of the polymer. During the mixing of the components, a polymer film forms around each grain of the aggregate.
Piedāvātā filtrējošā elementa izgatavošanas metode raksturīga ar to, ka graudainais minerālais materiāls ar uzdoto graudainību iepriekš tiek uzkarsēts līdz termoplastiskās saistvielas tecēšanas temperatūrai, pēc tam, uzsildītajam, graudainajam materiālam apsildāmā maisītājā, kas aprīkots ar piedziņu, pievieno termoplastisko materiālu, kura daudzumu izvēlas robežās no 3 līdz 26% no graudainā materiāla masas. Pēc termoplastiskā materiāla pievienošanas maisīšanu turpina vēl 1-2 minūtes. Pēc tam materiālu izvada no maisītāja, formē filtrējošo elementu pie spiediena līdz 1,0 MPa un to atdzesē, ļaujot saistvielai sacietēt, līdz izstrādājums kļūst gatavs lietošanai.The proposed method of making a filter element is characterized in that the granular mineral material with the specified grain size is preheated to the flow temperature of the thermoplastic binder, and thereafter, the heated granular material in a heated mixer equipped with a drive is added in a quantity of 3 up to 26% by weight of granular material. After the addition of the thermoplastic material, stirring is continued for another 1-2 minutes. The material is then removed from the mixer, the filter element is formed at a pressure of up to 1.0 MPa and cooled, allowing the binder to solidify until the article is ready for use.
Informācijas avoti:Sources of information:
1. Абрамов C.K., Дегтярев Б.М., Киринченко И.В. Горизонтальные дренажи с трубофильтрами из пористого бетона. М. “Стройиздат” 1976 г.1. Абрамов C.K., Деттирев Б.М., Kirchenko I.В. Горизонтальные дренажи с трубофильтрами из пористого бетона. М. Стройиздат 1976 г.
2. Гаврилко В.М., Алексеев В.С. Фильтры буровых скважин М.“Недра” 1985 г.2. Gavrilov V.M., Alekseev V.С. Фильтры буровых скважин М. “Недра” 1985 г.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LV040041A LV13235B (en) | 2004-04-07 | 2004-04-07 | Filtering element for natural and sewage water purification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LV040041A LV13235B (en) | 2004-04-07 | 2004-04-07 | Filtering element for natural and sewage water purification |
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LV13235B true LV13235B (en) | 2004-12-20 |
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LV040041A LV13235B (en) | 2004-04-07 | 2004-04-07 | Filtering element for natural and sewage water purification |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD4298C1 (en) * | 2013-02-14 | 2015-03-31 | Институт Химии Академии Наук Молдовы | Process for water treatment of ground and surface waters |
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2004
- 2004-04-07 LV LV040041A patent/LV13235B/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD4298C1 (en) * | 2013-02-14 | 2015-03-31 | Институт Химии Академии Наук Молдовы | Process for water treatment of ground and surface waters |
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