SU23750A1 - Kiln Drying Furnace - Google Patents

Description

The present invention relates to ovens for drying smelt. Usually, drying of smelt is carried out in simple Russian furnaces, often without even a chimney, with an insignificant coefficient of useful action and productivity, since the drying of each batch lasts for 7-8 hours. In order to increase throughput with a decrease in fuel consumption, a stove with drying muffles is proposed. In this case, the combustion products are not introduced into the drying chamber, but are heated in a separate firebox, from where they pass under the muffle, then go over the roof and go into the chimney.

In FIG. 1 shows a cross-section along the line AB of a single kiln for smelt drying; FIG. 2 - its longitudinal section; FIG. 3 is a longitudinal section of a two kiln oven for smelt drying; and FIG. 4-cross section of it.

The kiln for drying the smelt with drying muffles located in one and several Russes consists of a firebox 4, from where the combustion products pass through the smoke channels 5 under the muffle 3, are retracted through the roof into the chimney (Fig. 1 and 2). Since the smelt is loaded into the muffle 3 wet, to drain the water and remove the vapors resulting from evaporation, under I

The muffle 3 is made convex and inclined towards the edges of the muffle, from where water is represented, and the nutrient brine for animal feed is collected outside in a separate tank. The fire pipe 4 and the first smoke channels 5 are faced with refractory bricks, due to the high temperature. In order to remove vapors released during drying, exhaust channels 2 are made in the rear end of the muffle 3, in which traction can be adjusted using valves with iron rods attached to them. For the inflow of fresh air into the muffle instead of the saturated vapor leaving into the exhaust ducts 2, holes are made in the lower part of the door closing the muffle, which can be reduced or enlarged as required by pushing or opening the holes. For a more uniform heating of the roof and hearth 1 muffle 3, the smoke channels can change the cross section, while at the exit of the chimney they install gate valves that are regulated with iron wires. Hak like combustion products with single furnaces leaves As a result, no double hot water is required and then 11 use heat to arrange a furnace for the smelt of a two-tier furnace (Fig. 3 and 4). All furnaces are equipped with thermometers and viewing windows near the door of the muffle.

The subject matter of the invention. Furnace for drying of smelt with drying muffles located on several floors and heated according to GG. R.

by the power of chimneys from a single firebox, differing in the use of convex water in the middle of an inclined hearth 1 for swelling water and dispersal from fish loaded, and exhaust channels 2 in the rear end of muffle 3 for evaporating water vapor released during drying (Fig. I-4).

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