SU11172A1 - Preheater for combustion in variable humidity fuel furnaces - Google Patents

Description

In order to allow the adjustment of the combustion process during the combustion of variable humidity, in the proposed furnace, in the lower part, a spree is used to control the opening of the window, which communicates the pre-furnace with the combustion space, and in the front part of the grate, rotatable around the water-cooled tubular beams.

In the drawing fng. 1 depicts a vertical section of the furnace equipped with the proposed furnace; FIG. 2 - a horizontal section of the predak. ,

In the front part of the mine advance furnace w, the grate KI and KJ are located, which can expand, near the water-cooled tubular beams (Y and и Tj and supported by the same beams (fjt and $ 3). The inclination of the lattices 1 1 and 2 2 is made by moving beams 1 2, bu in guides j3i, pr, pz, produced with the help of screws “1, 62, pivot and turning in place, hee Zi, g, zjj

The mine front furnace is separated from the furnace space only in a small part by a vault with a cut-off obliquely inside the front furnace, in order to increase the volume of the latter, and defining with its lower edge the height of the layer of fuel entering the furnace. A window o is formed between the roof and the upper roof of the firebox, which can be closed by the Refractory gate e, freely suspended by means of a block transfer to the lifting mechanism m.

When sufficiently dry fuel enters the furnace that does not require additional drying for ignition, the grates KJ and з give a large slope, and the pre-furnace from the radiant heat of the combustion chamber is closed with a gate and. As the moisture content of the incoming fuel increases, the grates wj and Z Z are given a smaller incline, and the damper a rises, due to which an intensive drying is started in the pre-furnace and a constant flame is ignited on the grates KI and Kj; In order to obtain a greater effect, front air can be supplied to the front cameras of the f lf with hot air.

Subject and awning

The precursor for combustion in fuel furnaces with variable humidity, characterized by common use in the lower part of its shaft from the toiki side: above the cut vault with the bottom edge of the fuel entering the furnace, bkv o, the opening — of which into the furnace chamber is regulated by a suspended gate, and from the front side — the collar swings KI and rotary grids, which are rotatable around the tubular tubes (Y: I; Sz and supported by the same beams 6i and 5z, of which beams ,, b and, get in the direction x, py, and PZ movement by means of screws 9i "and 2" 3 corresponding to them in place Zj rotary nuts 23 and of