SU635073A1 - Carbon paste - Google Patents

Description

(54) CARBON PASTE

The invention relates to the production of carbonaceous refractory materials, and / and meano, carbon-flippers for filling thin seams - between carbon blocks. Domain-nameables are treated. Carbonaceous fins were obtained for the preparation of which the use of carbonaceous materials (a filler, 150-225 ° C, and a plasticizer made of synthetic resin and a catalyst tve) rdeni. However, these are: Kie flippers serve as temperatures up to 1000 ° C 1. Of the carbon black fins described in the literature, which are used to make thin seams of carbon-resistant masonry and serving at a temperature of 1500-1600 ° C, Ingredients have the closest - to the proposed coal, a rod of a fin, consisting of 49-61% of carbonaceous and alolithic, 22-2.3% of the average hard coal tar of 26-29% of anthraceno oil. Cast iron oiKc or return of baked carbon blanks (carbon bout) of O-0.5 mm fracdium are used as nal. 2. Taka (lastas l-p-Name- in the house temperature of 1600 ° C.) However, it is heated its fluidity increases dramatically, which contributes to the flow of paste from the vertical joints of carbon masonry during heating of the blast furnace, and therefore does not provide a sufficiently strong connection of the blocks to each other. In addition, when used as a full-body casting coke or carbon-dioxide fraction O, -0.5 mm, the weld is not sufficiently high. The purpose of the invention is to increase the strength of the connection of blocks and reduce technical performance of flippers: in conditions of warming the clade-to-etech. The goal is achieved by the fact that the proposed carbon flipper, including carbon filler, is medium carbon black Lek and anthracene oil, additionally contain coal tar pitch with a softening temperature of 200-300 ° С with the following ratio of components, weight. %: Carbon filler49-51 "Medium Tlera Pit 6-18 Anthracene Oil30-36 Coal Lek with Temperature Gcheni 200-300 ° C2-8

As a carbon filler, it can be TAKEN ter: moa: ntrats1 t f: ratios less than 0.071 mm.

The input of a camanal-carbon 1peck with a telagarathura, times: 200-300 ° C, is used in a mixture of joint scrap with filler (or "part of it").

Paste TOTO1VYAT following image | The initial components are α-molten medium-temperature ca. coal; pitch and anthracene oil are metered from the heated mixer and mixed for 10 minutes. After that, the mixture is entered together. The actual viscosity is at all, the temperatures of the more possible limit of the viscometer measurements.

| As SEEED from the table, pastes with added coal and vegetation with a softening temperature of 226 ° C have more high kiHiM “takazatel” (contact strength of the seam 1 when shears about heat, 1000 ° C ai have more favorable conditions warming up the blast furnace laying; viscosity change characteristic with increasing temperature.

Carrying out the carbonaceous masonry of the hearth on the bottom of the proposed carbon paste will provide higher (durability of a thin seam, which will lead to an increase in the durability of carbonaceous hearth and sand and an extension of the blast cure from 14 to 15 years for treatment of 5,000 lg. With an increase in the overhaul steriod for 1 year of carbon milling, napol yarn and Kamalonnevolgo 1eka with melting point: and 200, 300 ° C, mixing is carried out for 40 minutes at 60-70 ° C.

According to this technology, 5 compositions of flippers were made, each containing weight. %: carbonaceous filler - 50 and differing from each other in the content of anthracene oil, medium-temperature ka: meinoupolny stack and kamenno ugolnogo1GO pitch with a softening temperature of 226 ° C.

The fin compositions and results: their testing is given in the table.

Proto offer

expense reduction

The increase in productivity due to downtime will be 0.13%.

Ф Орм ул а and 3 o b r e e

Carbon finder for thin-seam ziolmeni-lining of home cures, 1 including carbonaceous layer, amongst the small natural stone lek and a-ntracene oil, characterized in that with the use of trapping (the strength of the joint: blocking the blocks and reducing fouling the polymers; furnace, about dololitelio contains coal-tar with temperature (softening 200-300 ° C, 1, and the following ratio of components, wt.%

Carbon filler 49-51 Medium-thick stone Kamen tolny lek6-18 120 poise, i.e., higher anthracene oil 30-36 Kamenogolokologolnye with softener temperature

200-300 ° C2-8

2. Carbon finder p. 1, characterized in that, as a carbon nanoparticle, it contains 1 thermoanthracite f | cc: CII less than 0.071 mm.

Source information,

Welcome to the LRA Expert Advisory:

1. US Patent No. 2884391, cl. 260-28,5,

Apple1 1k. 1959.

2. Galemin K.M., Gorokh A.V. Carbonist lining of blast furnaces, Metallurgists, i% 4, p. 48.