SU20671A1 - Two-chamber furnace with a movable arch - Google Patents

Description

By means of the proposed two-chamber furnace with a mobile vault, it is intended to achieve a reduction in the period of loading and unloading products with a better utilization of the hearth area and an increase in the productivity of the furnace.

In FIG. 1 shows an oven in vertical section; FIG. 2 is the same section along the line ABCD in FIG. one.

The furnace consists of two chambers 1 and 2 and a number of burners 3 (for gas) between them. The sliding roof 4 overlaps one of the chambers 1 or 2 and the burner 3 at the same time. The roof is suspended, one of the used types, or a roll section with reinforced rings and longitudinal fastenings of the rings connecting the roof into one body.

Moving the vault consists in slightly lifting it and moving in a horizontal direction by a length equal to the width of one chamber 1 or 2. This movement may be performed, as shown in the drawing, with a portal crane or other other device, depending on the solidity of the vault reinforcement and its dimensions and weight and local conditions.

Together with the arch, two iron tires 5 are moved, the purpose of which is to overlap that of chambers 1 or 2 that is not blocked by the arch. Chambers 1 and 2 are lined with brick or cast-iron lined tiles 6, under which alternate air and smoke channels 7 are located. Air channels 7 of that chamber (1 or 2) that are under the tire 5 during this period of operation supply air to the burners 3 The booster, heating in these channels, cools the chambers from the sides and bottom, 1 it is studded at the top due to the cover 5, so that the cooling of the chamber I occurs simultaneously from all sides. I Through the smoke channels 7 of the same chamber, I which is currently under j arch 4, the products of combustion B are sucked out by the corresponding bore. Smoke ducts contribute to a better warming up of the hearth. The vault is not subjected to transverse heating and cooling, as it is under fire all the time, and when switching the burners to the next chamber 1 or 2, it contributes to the complete combustion of the gas.

The subject of the patent.

A two-chamber furnace with a movable arch, characterized by using two rows of chambers 1 and 2, a row of burners 3 between them and a movable arch 4, which simultaneously overlaps the burners 3 and one of the chambers 1 or 2, which have been placed under alternating air and smoke channels 7 are located.

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