SU614289A1 - Method of preventing corrosion and ash deposits on heating surfaces of power plants - Google Patents

Description

one

Methods are known to prevent corrosion and zop offenses on the heating topsheets of power plants, for example coxes, working on sulfurous liquid toppens, by adding additives to the toppivo, the mineral part of which contains one compound and several compounds from groups Af. 5i

Mg-, Cr and fe.

with the chain of reduction of labor and material costs in the proposed method, liquid products are used as additives. Solid toppiva processing, for example, shale oils ,. It is preferable to use high-grade heavy oils, obtained by thermal processing of shale, brown coal, peat, etc. especially if the solid fuel is processed in a pulverized state and the zone containing the waste gas has a high dispersion.

From liquid products of solid fuel processing, they extract minerals containing them, and if necessary, a supplementary amount of active substances, for example, containing

Mg, Ca, Zn, etc., so as to ensure the optimum, from the point of view of the effect on fuel oil ash, the composition of the mineral part of heavy oil. The heavy oil is mixed with fuel oil in a ratio that provides the optimum concentration of the mineral portion of heavy oil in the compounded fuel. During this operation, a substance may be added to the fuel to stabilize the mines mixed with it.

0 brine connections.

The make up artist of the method described is the use of heavy oil UTT-5OO as a mineral additive to sulfur fuel oil.

five

Said oil with an ash content of 2.5% and ash consisting of CaO, SiO, is mixed with sulfur fuel oil with an ash content of 0.1% ispacHGTQ Q gPp- i t

0

0.5%, with 2% heavy oil / oil added;

The cost of the additive, added from the site of 0.5 kg of oil ash (BCH + MgfCH- e i C.) to 1 ton of fuel oil, was the cost of the same amount of fuel oil 50 kopecks. and for expenditure on input of 1OOO additives equal 5 & -5O 8 cop / t of fuel oil. Calculating the cost of introducing 1 kg of an additive into fuel oil shows that the proposed method allows introducing an active mineral supplement into fuel oil by 1.5 times cheaper than when suspended in heavy oil and 25 times cheaper than through organic growth. DETAILED DESCRIPTION OF THE INVENTION A method for preventing corrosion and fire exposure on heating surfaces of power plants, for example, tanks operating on sulfur liquid gopivs, by introducing additives into the gopivo, the minerals of which contain one of several compounds from groups A0, Si, My Cr and Fe characterized in that with a chain of labor and material cost reduction, liquid products of solid topps, such as shale oils, are used as an additive.