SU947112A1 - Mineral fiber - Google Patents

Description

(54) MINERAL FIBER

one

The invention relates to the production of heat-insulation materials, namely, compositions for the manufacture of mineral fibers from silicate melt.

Known composition with

flowed dp manufactured fiber L1J, including mineral tea, wt.%:

S-iOa

44.5-48.0

ABjO,

7.0-1О, 0

CaO 17.0-32.0

, O-4.0

Feo

0.3-1.1

Fe2.0, 0.06-0.19

MyiO

6.0-19.0

SO

0.5-1.5

Ti oi

0.1-1.0

PxO, O, 05-O, 00

The closest to the proposed fiber, L, is mineral

tea, wt.%:

Sioj

27-61

,

8-23

,

(u - (I

 I f -

0,8-12

FeiO

FeO 0.1-4.0

MviO 0.5-1.0

CaO 8-20

4,5-21

0.1-5.5

A disadvantage of the known compositions is the high melting temperature of 1250-1400 0, and also not enough

JQ high chemical resistance of the fiber obtained from it is the modulus of acidity (Mk) 1.6-2.38. In addition, the mineral fiber is made from two or more components of the charge, which increases the cost of 5 parts preparation, reduces the homogeneity of the material and the quality of mineral wool products.

The purpose of the invention is to reduce the melting temperature, reduce chemical resistance and decrease self-consumption;

The chain of dospig-asthms was set up by the fact that the mineral surface of the neck was S-IOT.,, T-IMT., FojfS.

CaO, MgQ, additionally contains i 0 at a speddy ratio of Kovoioi nantov, wt.%:

byYug41,8-45.0

AKiO- 6,2-14.7

TiOj.1,7-3,4

 .9-17,0

FeO13,2-14,4

M & E 0.08-0.2

CaO4.3-7.8

MgO8,5-13,1

RiO .1-1-2.8,

.0,3-2,1

Specific compositions of mineral fibers and their properties are given in the table.

To obtain melts, sludge from indigenous ores is used. in particular, the strongly magnetic fraction of primary ore and the magnetic fraction of primary ore.

The method for producing a melt for preparing silicate fibers is as follows. Take one of the compositions, kodsushivakhhr it in suish ohm

drum up to a moisture content of 3-5% and with the help of a piston or auger loader is fed into the cooking zone of the bathroom.

The use of tailings of indigenous titanium ores will make it possible to obtain mineral fiber with enhanced chemical resistance. Reduced melting temperature Waste enrichment of indigenous titanium ores will ensure that technological melting processes are carried out at lower temperatures in the furnace working space. This will reduce the specific heat consumption for producing 1 kg of the melt, and also increase the melting period for the melting units, since the corrosion of refractory materials decreases as the temperature of the melt decreases.

The economic effect obtained by using the melt can be calculated by reducing fuel consumption by 15% and capital investments in equipment for the charge preparation department.

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cm s al ia fr mula inventive Mineral fiber including S-iOj, AiaO-5, TiO, Fe.p, FeO, Mio, CaO, MgO, I, 0, different from 4TOj to reduce the temperature melting, increasing chemical resistance and cost reduction, it additionally contains the following ratio of components, wt.%: 9iOa41.8-45.0 AtiO, 6.2-14.7 T, 0-1.7-3.4 5.9- 17.0 .13.2-14, -4 0., 08-O, 2 4.3-7.8 8.5-13.1 1.1-2.8 P ,, 3-2.1 Sources information taken into account during the examination 1. USSR author's certificate 581104, cl. From 03 To 13 / OO, 1976, 2. Authors certificate of the USSR 649670, cl. From 03 To 13/00, 1977,

Claims (1)

Ф ^ .р mula of invention Mineral fiber, including S-iOj, AtjO- ^, Ti'O ^, Fe ^ O ^, FeO, MmO, CaO, MgO, ₽ _g 0, characterized in 5 in that, in order to reduce the melting temperature, increase chemical resistance and cost reduction, it additionally contains in the following ratio of components, wt.%: w ςίΟα. 41.8-45.0 AtaP ^ '6.2-14.7 Tri Oh about. 1.7-3.4 N About _{th h} 5.9-17.0 FeO .1 3.2-14.4 Nuclear weapons 0.08-0.2 CaO 4.3-7.8 Μ0Ό 8.5-13.1 Pjo 1.1-2.8 ^RA 0.3-2.1 Information sources,