PL88872B1 - - Google Patents

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Publication number
PL88872B1
PL88872B1 PL13673269A PL13673269A PL88872B1 PL 88872 B1 PL88872 B1 PL 88872B1 PL 13673269 A PL13673269 A PL 13673269A PL 13673269 A PL13673269 A PL 13673269A PL 88872 B1 PL88872 B1 PL 88872B1
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PL
Poland
Prior art keywords
weight
amount
aggregate
water glass
water
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Application number
PL13673269A
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Polish (pl)
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Priority to PL13673269A priority Critical patent/PL88872B1/pl
Publication of PL88872B1 publication Critical patent/PL88872B1/pl

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Description

Przedmiotem wynalazku jest masa zaroodporna •nadajaca sie do wykonywania obmiurzy kotlów pa¬ rowych zwlaszcza kotlów wysokopreznych i innych urzadzen cieplnych.Znane sa do wykonywania ogniotrwalych ob- murzy kotlów parowych i innych przemyslowych urzadzen cieplnych, betony ogniotrwale oparte na szkle wodnym o przecietnym skladzie: — kruszywo szamotowe — 86,6% wagowych — (fluorokrzemian sodowy — 1,4% wagowych — szklo wodne sodowe — 12,0% wagowych Betony te charakteryzuja sie nastepujacymi pa¬ rametrami technicznymi: — ogniotrwalosc zwykla — ogniotrwaloisc pod obciazeniem — odpornosc na wstrzasy cieplne, wynikajace z odstawienia kotla z ruch-u i ponownego jego uruchomienia — porowatosc otwarta w 1400°C — gestosc pozorna w 1400°C — wytrzymalosc na sciskanie w temperaturze: od 20°C do 900°C wynosi srednio 112 kG/cm* od 1100°C do 1400°C wynosi srednio 252 kG/cm* Wada tego betonu jest to, ze posiada on zle wlasnosci termiczne, charakteryzujace sie duzym obnizeniem wytrzymalosci na sciskanie i ogniood- pornosci oraz obnizeniem odpornosci na wstrzasy cieplne. Przyczyna tyoh wad jest kruszywo szamo¬ towe, zawierajace zanieczyszczenia wapienno-pias- — 1650°C — 1030°C — 30 zmian — 29,0% — 1,74 g/em8 kowe, zuzle oraz materialy zakwaszone, które to zanieczyszczenia powoduja obnizenie wartosci ter¬ micznych betonu. Ponadto wprowadzony do beto¬ nu fluorokrzemian sodowy jest srodkiem silnie trujacym, a wiec niebezpiecznym dla zdrowia.Celem wynalazku jest usuniecie wyzej wymie¬ nionych wad. Stwierdzono, ze jesli jako kruszywo, zamiast szamotowego, zastosuje sie zuzel chroma- lftowy, uzyska sie tworzywo ogniotrwale o dobrych wlasnosciach termicznych.Masa zaroodporna wedlug sie z: — zuzla chromalitowego w ilosci — piasku budowlanego w ilosci — szkla wodnego sodowego w ilosci — wody w ilosci Uziarnienie zuzla chromalitowego, bedacego produktem odpadowym przy wytopach zelazo-chro- mowych, wynosi od 0 do 1 mm, a sklad chemicz¬ ny tego zuzla jest nastepujacy: wynalazku sklada — 37% wagowych, — 37% wagowych, — 15% wagowych, — 11% wagowych.CaO Si02 MgO Alfis inne — 50,81% — 26,50% — 9,00% — 8,09% — 5,60% Ciezar wlasciwy szkla wodnego sodowego wyno¬ si 1,45 g/om8. 88 87288 872 Masa zaroodporna wedlug wynalazku odznacza sie nastepujacymi parametrami technicznymi: — ogniotrwalosc zwykla — 1230°C (do 1600°C) — ogniotrwalosc pod obciazeniem — odpornosc na wstrzasy cieplne — porowatosc otwarta w temperaturze 1000°C — gestosc pozorna w temperaturze 1000°C — 1270°C — 36 zmian ,2% — 1,95 g/cm3 — wytrzymalosc na sciskanie w temperaturze: od 20°C do 1000°C wynosi srednio 145 kG/cm2 * ,4 przy 1000°C wynosi 223°C.: Ponadto skladniki stosowane nie sa szkodliwe dla jzdrowia. \ iWftC^lKropdip^rna wedlug wynalazku przygoto- j^JJJSi^ie/ w betoniarce i mozna stosowac ja do ob- murzy kotlów parowych i urzadzen cieplnych me¬ todami: na imokro, w deskowaniu wzglednie przez natrysk pod cisnieniem oraz w postaci prefabryka¬ tów, jak: plyty, ksztaltki, prostki. PLThe subject of the invention is a heat-resistant mass, suitable for making the cavities of steam boilers, especially high-pressure boilers and other heat devices. They are known for making refractory masonry of steam boilers and other industrial thermal devices, refractory concrete based on water glass with an average composition: chamotte aggregate - 86.6% by weight - (sodium fluorosilicate - 1.4% by weight - sodium water glass - 12.0% by weight) These concretes are characterized by the following technical parameters: - normal refractoriness - fireproof disc under load - resistance to thermal shocks , resulting from shutting down the boiler from operation and restarting it - open porosity at 1400 ° C - apparent density at 1400 ° C - compressive strength at temperature: from 20 ° C to 900 ° C is on average 112 kG / cm * from 1100 ° C to 1400 ° C is an average of 252 kg / cm * The disadvantage of this concrete is that it has poor thermal properties, characterized by a large reduction in compressive strength and fire resistance, and a reduction in thermal shock resistance. The cause of these defects is slime aggregate, containing lime-sand impurities - - 1650 ° C - 1030 ° C - 30 changes - 29.0% - 1.74 g / em8, bad and acidified materials, which impurities reduce the thermal values of concrete. Moreover, the sodium fluorosilicate introduced into the concrete is a highly poisonous and therefore hazardous to health. The aim of the invention is to eliminate the above-mentioned disadvantages. It was found that if the aggregate, instead of chamotte, is used chroma- lft slag, a refractory material with good thermal properties will be obtained. Heat-resistant mass according to: - chromite slug in the amount - construction sand in the amount - sodium water glass in the amount - water in quantity The grain size of the chromalite slug, which is a waste product in iron-chrome melts, is from 0 to 1 mm, and the chemical composition of this slag is as follows: the invention consists of - 37% by weight, - 37% by weight, - 15% by weight - 11% by weight CaO SiO 2 MgO Alfis other - 50.81% - 26.50% - 9.00% - 8.09% - 5.60% The specific weight of sodium water glass is 1.45 g / cm8 . 88 87 288 872 The heat-resistant mass according to the invention is characterized by the following technical parameters: - normal refractoriness - 1230 ° C (up to 1600 ° C) - refractoriness under load - resistance to thermal shock - open porosity at 1000 ° C - apparent density at 1000 ° C - 1270 ° C - 36 changes, 2% - 1.95 g / cm3 - compressive strength at temperature: from 20 ° C to 1000 ° C is on average 145 kG / cm2 *, 4 at 1000 ° C is 223 ° C .: In addition, the ingredients used are not harmful to the health of the body. According to the invention, \ iWftC ^ l Dropdip ^ rna, according to the invention, is prepared in a concrete mixer and can be applied to the walling of steam boilers and thermal devices by methods: wet, in formwork or by spraying under pressure and in the form of a prefabricated factory such as: plates, shapes, straight lines. PL

Claims (1)

1. Zastrzezenie patentowe Masa zaroodporna, stosowana do zabezpieczania urzadzen cieplnych przed dzialaniem wysokiej tem¬ peratury, skladajaca sie z kruszywa, szkla wodne¬ go i wody, znamienna tym, ze jako kruszywo sto¬ suje sie w ilosci 37°/o wagowych — piasek, w ilos¬ ci 37% wagowych — zuzel chromalitowy o skla¬ dzie chemicznym CaO — 50,81%, Si02 — 26,50%, MgO — 9,00%, Alp, — 8,09%, inne — 5,60% i o uziamieniu 0—1 mm, przy czym ilosc szkla wodne¬ go wynosi 15% wagowych a ilosc wody — 11% wagowych. Bltk 2111.1/76 r. 130 egz. A4 Cena 10 zl PL1. Patent claim A refractory mass, used to protect thermal equipment against the effects of high temperature, consisting of aggregate, water glass and water, characterized in that the aggregate is 37% by weight - sand , in the amount of 37% by weight - chromalite zuzel with the chemical composition of CaO - 50.81%, SiO2 - 26.50%, MgO - 9.00%, Alp - 8.09%, others - 5.60 % and particle size 0-1 mm, the amount of water glass being 15% by weight and the amount of water 11% by weight. Bltk 2111.1 / 76 r. 130 copies A4 Price PLN 10 PL
PL13673269A 1969-11-06 1969-11-06 PL88872B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13673269A PL88872B1 (en) 1969-11-06 1969-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL13673269A PL88872B1 (en) 1969-11-06 1969-11-06

Publications (1)

Publication Number Publication Date
PL88872B1 true PL88872B1 (en) 1976-10-30

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Application Number Title Priority Date Filing Date
PL13673269A PL88872B1 (en) 1969-11-06 1969-11-06

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PL (1) PL88872B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423461A1 (en) * 1978-04-18 1979-11-16 Outokumpu Oy FERRO-CHROME MILK FOR USES REQUIRING REFRACTORY NATURE AND MECHANICAL STRENGTH

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423461A1 (en) * 1978-04-18 1979-11-16 Outokumpu Oy FERRO-CHROME MILK FOR USES REQUIRING REFRACTORY NATURE AND MECHANICAL STRENGTH

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