PL121295B1 - Method of manufacture of ceramic filtration materialala - Google Patents

Method of manufacture of ceramic filtration materialala Download PDF

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Publication number
PL121295B1
PL121295B1 PL20867378A PL20867378A PL121295B1 PL 121295 B1 PL121295 B1 PL 121295B1 PL 20867378 A PL20867378 A PL 20867378A PL 20867378 A PL20867378 A PL 20867378A PL 121295 B1 PL121295 B1 PL 121295B1
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PL
Poland
Prior art keywords
glass
ceramic
materialala
manufacture
weight
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Application number
PL20867378A
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Polish (pl)
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PL208673A1 (en
Inventor
Jerzy Szulc
Waldemar Kornacki
Jacek Koter
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Inst Szkla I Ceramiki
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Priority to PL20867378A priority Critical patent/PL121295B1/en
Publication of PL208673A1 publication Critical patent/PL208673A1/xx
Publication of PL121295B1 publication Critical patent/PL121295B1/en

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Description

Opis patentowy opublikowano: 15.03.1985 121295 Int. Cl.8 C04B 21/12 B01D 39/00 Twórcywynalazku: Jerzy Szulc, Waldemar Czerwinski, Henryk Pieczarowski, Krzysztof Kornacki, Jacek Koter Uprawniony z patentu: Instytut Szkla i Ceramiki, Warszawa (Polska) -Kozle (Polska) Sposób wytwarzania ceramicznego tworzywa filtracyjnego Wynalazek dotyczy sposobu wytwarzania cera¬ micznego tworzywa filtracyjnego o jednorodnej strukturze porowatej. Tworzywa takie sa szczegól¬ nie przydatne do formowania ksztaltek filtracyjnych o skomplikowanym ksztalcie lub wysokiej war¬ tosci H/D, gdzie D — srednica wyrobu, a H — wysokosc wyrobu.Wynalazek moze znalezc zastosowanie zwlaszcza w procesach uzdatniania scieków komunalnych.Dotychczas sa znane i stosowane sposoby wytwa¬ rzania 'ksztaltek filtracyjnych przez formowanie ich z mas plastycznych, odlanie z gestwy lub prasowa¬ nie z mas pólsuchych. Znana masa sklada sie np. z wypelniacza w postaci ziarn szamotu, kwarcu, tlenku glinu itp. oraz lepiszcza w postaci substan¬ cji ilastej, smoly pogazowej, kwasu o-fosforowego, laiku bakelitowego, szkla wodnego itp.Stosowane lepiszcza nieorganiczne obnizaja po¬ rowatosc otwarta i przepuszczalnosc tworzywa fil¬ tracyjnego, a w przypadku lepiszcza organicznego jest ograniczony zakres stosowania tworzywa fil¬ tracyjnego do zakresu niskich temperatur. Stoso¬ wanie pomocniczych srodków wiazacych, np.: al¬ koholu poliwinlowego, parafiny, wosku, itp. korzyst¬ nie wplywajacych na porowatosc otwarta i prze¬ puszczalnosc ceramiki filtracyjnej na osnowie tlen¬ ków ogniotrwalych powoduje, ze tworzywa te trze¬ ba wypalac w wysokich temperaturach.Znane sa równiez próbne wprowadzenia szkla, jako lepiszcza do zestawów mas filtracyjnych. Pró- 10 20 25 by te nie daly jednak pozytywnego wyniku, gdyz wprowadzone szklo powoduje trudnosci w formo¬ waniu wyrobów oraz obniza przepuszczalnosc tak otrzymanego tworzywa.Celem wynalazku jest Otrzymanie ceramicznego tworzywa filtracyjnego o regulowanej wielkosci por, wysokiej wyitirzyimalosci i przepuszczalnosci i jednorodnosci struktury. Zostalo to rozwiazane wedlug wynalazku przez wprowadzenie do skladu masy jako lepiszcza cementu glinowego i szkla bo¬ rowego lub zamiast szkla borowego szkliwa cera¬ micznego.Sposób wedlug wynalaizku polega na tym, ze do znanego wypelniacza, skladajacego sie z ziarn kwarcu i tlenku glinu dodaje sie cement glinowy w ilosci 2,5—15,0% wagowych i szklo borowe lub szliwo ceramiczne w ilosci 15,0—30,0% wagowych, miesza z woda i formuje jednym ze znanych spo¬ sobów n^. przez odlewanie w formach stalowych.Po stezeniu ksztaltki sa wyjmowane z form, suszo¬ ne i wypalane w temperaturze 900—1250°C.Stwierdzono, ze w procesie wypalania szklo rea¬ guje z cementem tworzac faze szklista o wysokiej lepkosci, co pozwala otrzymac wysoka wartosc po¬ rowatosci, a jednoczesnie wysoka wytrzymalosc tworzywa, gdyz czastki wypelniacza sa otoczone warstewka szkla. Wysoka lepkosc fazy szklistej po¬ woduje, ze pory nie sa zamykane. Cenna zaleta jest jednorodna struktura i wysoka wytrzymalosc mechaniczna w stanie surowym pólfabrykatu. 121 295121 295 3 Przyklad. W mieszadle zetowyim przygotowa- * no, macC~ o sfcla/dizie wagowymi: piasek kwarcowy, szMo-twowe, cement* glinowy .Nastepnie (dodano frakcja 1—1,2 mm — 77,5% — 15,0% — 7,5% wode w ilosci 15,0% i kontynuo¬ wano imieszamde az do uzyskania jednorodnej kon¬ systencji. Z tak otrzymanej gestwy odlano wyma¬ gane ksztaltki w formach stalowych, wysniairowa- nych olejem. Po 10 godzinach wyjeto wyiroiby z form, wysuszono i wypalono w piecu elektrycz¬ nym w teon PLThe patent description was published: March 15, 1985 121295 Int. Cl.8 C04B 21/12 B01D 39/00 Creators of the invention: Jerzy Szulc, Waldemar Czerwinski, Henryk Pieczarowski, Krzysztof Kornacki, Jacek Koter. Authorized by the patent: Institute of Glass and Ceramics, Warsaw (Poland) -Kozle (Poland) A method of producing a ceramic filter material The invention relates to a method of producing a ceramic filter material with a homogeneous porous structure. Such materials are particularly suitable for forming filter shapes of complex shape or high H / D value, where D - product diameter and H - product height. The invention can be used especially in municipal sewage treatment processes. the methods used for the production of filter particles by molding them from plastic masses, pouring them from the paste or pressing them from semi-dry masses. The known mass consists, for example, of a filler in the form of grains of fireclay, quartz, alumina, etc. and a binder in the form of clay, coal tar, o-phosphoric acid, bakelite, water glass, etc. The inorganic binders used reduce the porosity. The open and permeability of the filter material, and in the case of the organic binder, the scope of the filter material is limited to the low temperature range. The use of auxiliary binding agents, e.g. polyvinyl alcohol, paraffin, wax, etc., favorably influencing the open porosity and the permeability of the filter ceramics based on refractory oxides, causes the materials to burn out in It is also known to introduce glass as a binder to the sets of filter media. However, attempts would not be successful, because the introduced glass causes difficulties in the formation of products and reduces the permeability of the material obtained in this way. The aim of the invention is to obtain a ceramic filter material with an adjustable pore size, high purity, permeability and uniformity of the structure. This has been solved according to the invention by introducing into the composition of the mass as a binder aluminum cement and boron glass or instead of boron glass ceramic glaze. The method according to the invention consists in adding to a known filler consisting of quartz grains and alumina aluminum cement in an amount of 2.5-15.0% by weight and boron glass or ceramic sanding in an amount of 15.0-30.0% by weight are mixed with water and formed by one of the known methods. by casting in steel molds. After concentration, the shapes are removed from the molds, dried and fired at a temperature of 900-1250 ° C. It has been found that in the firing process, the glass reacts with the cement to form a vitreous phase of high viscosity, which allows to obtain a high the roughness value and at the same time the high strength of the material, as the filler particles are surrounded by a glass film. The high viscosity of the glass phase prevents the pores from closing. A valuable advantage is the homogeneous structure and high mechanical strength in the raw state of the blank. 121 295 121 295 3 Ex. In a zet mixer, macC ~ o sfcla / dizie was prepared by weight: quartz sand, sfcla / dizie, clay cement. Then (fraction 1-1.2 mm - 77.5% - 15.0% - 7 was added, 5% water in an amount of 15.0% and continued and mixed until a homogeneous consistency was obtained. The required shapes were poured from the thus obtained mixture in steel molds, sifted with oil. After 10 hours, the molds were removed, dried and dried. fired in an electric furnace into the PL teon

Claims (2)

Zastrzezenia patentowe 1. Sipo3Ó'b wytwarzania ceramicznego tworzywa Oibracyjnego z masy lejnej, zawierajacej jako wy¬ pelniacz ziarna kwarcu i tlenku glinu, znamienny tym, ze jako lepiszcze dodaje sie cement glinowy w ilosci 2,5;—15,0% wagowych i szklo borowe w ilosci 15,0—30,0% wagowych, nastepnie formuje, znanym sposobem, wyroby, a po stezeniu, otrzy¬ mane pólfabrykaty suszy i wypala w temperatu¬ rze 900^1250°C.Claims 1. Sipo3 o for the production of a ceramic OIBR material from a slurry containing quartz and alumina grains as filler, characterized in that aluminum cement in an amount of 2.5; -15.0% by weight and glass are added as a binder. boric acid in an amount of 15.0-30.0% by weight, then formed, in a known manner, the products, and after concentration, the obtained blanks are dried and fired at a temperature of 900-1250 ° C. 2. Sposób wedlug zastrz. 1, znamienny tym, ze zamiasit szkla borowego, dodaje sie szkliwo cera¬ miczne. PZGraf. Koszalin A-1616 90 A-4 Cena 100 il PL2. The method according to claim A method as claimed in claim 1, characterized in that the replacement of boron glass is made of ceramic glaze. PZGraf. Koszalin A-1616 90 A-4 Price 100 il PL
PL20867378A 1978-07-27 1978-07-27 Method of manufacture of ceramic filtration materialala PL121295B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20867378A PL121295B1 (en) 1978-07-27 1978-07-27 Method of manufacture of ceramic filtration materialala

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20867378A PL121295B1 (en) 1978-07-27 1978-07-27 Method of manufacture of ceramic filtration materialala

Publications (2)

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PL208673A1 PL208673A1 (en) 1980-03-24
PL121295B1 true PL121295B1 (en) 1982-04-30

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