SU19124A1 - Horn for roasting of porcelain, Fans or other ceramic products - Google Patents

Description

A device for a network of bottom channels open in the hearth plane and communicating with the subsurface suction holes is known. In the proposed furnace, to ensure complete combustion of flue gases in annular niches, inlet channels with openings into these channels are used to supply secondary air heated in the hearth of the furnace.

In the schematic drawing of FIG. 1 shows a vertical section through a furnace; FIG. 2 is a section along the line CO in FIG. one.

In the proposed furnace, the flue gases coming from the firebox-3 are mixed with the secondary heated air coming through the furnace filaments 1, and through the upward directional exit 4 from the generator, with the openings 1 adjoining it, enter the annular niche 4.

Niche 4 is bounded above by the dome of chamber 6, below the edge of the refractory lining of the chamber walls and from the last-most horn in the form of pillars filled with porcelain. The volume of the niche, like an annular combustion chamber, depending on the quality of the fuel, can be easily adjusted by the height of the installation of the extreme columns of 9 caps.

FIG. Figure 1 shows two options for filling the hearth chamber; the left shows the installation to the dome with a small volume of the ring niche 4, to the right, with its increased volume. Thus, by means of a ring niche, the flue gases are evenly distributed around the periphery of the furnace chamber. For the most part, the gases that heat the charge of the hearth chamber are removed through the bottom holes 10, the bottom collectors tunnels I, the vertical channels 12, the chamber of the second, and sometimes the third floor, into the chimney.

The drips over the bottom openings 10 are usually mounted on special supports (cones). Depending on the accuracy of installation of caps on the cones, as well as on the density of installation of adjacent columns of caps, the increase and change in resistance in the channels depends, which, in turn, reflects on the lengthening of the firing period, its unevenness and increase in fuel consumption.

Therefore, in the proposed design, the entire surface of the hearth is cut by a network of radial and annular channels 5, o6gc; baking free n | j)

bottom gases into the bottom holes 10, with which the entire network communicates. Thus, the normal selection of exhaust gases and their distribution during the passage between the columns of the cords in the lower part of the furnace chamber are provided with a sufficient and calculated cross section of the flue ducts and will not cost depending on the randomness of the placement of the cords and bottom supports.

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Horn for roasting of porcelain or other ceramic products with generator

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or semi-generator fireboxes requiring secondary air supply, characterized in that, in order to ensure complete combustion of flue gases in 9 annular niches 4 enclosed by enclosing columns, upwardly extended walls of the firebox 3 facing upwards of the vault roof are At the edge of the above-mentioned masonry, inlet valves 4 with openings 1, opening into these channels. employees for supplying secondary air heated in the furnace masonry.

to patent I. A. Bulavin and J. No 19124 I. Kravchenko

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