SU1292208A1 - Electric heating device - Google Patents

Abstract

The invention relates to devices for heating products. The purpose of the invention is to increase the heating capacity by increasing the strength of the device when used in electric furnaces. The device contains a heating chamber (NK) 1 and an additional chamber (DK) 2, separated by a heat-conducting partition 4. In DK 2 there are inlet channels 3 for gas supply. In NC 1, grooves 5 are made to accommodate heater 6 placed on insulators 7 worn on pins. In DC 2, two zigzag channels 10 and 11 are made perpendicular to the grooves 5 for the passage of gas. Channels 10 and 11 have a common collector 12 above slots 13 extending into NC 1. When the device is installed over a moving heating strip 15, gas through the collector 12 and slits 13 flows together with the radiation flux from heater 6 to strip 15, the uniformity and its heating efficiency. 3 il. about (L 10 ts. / 3 12 W ... Rt.zh.D., .. g Tspgrut (gt1gd; / Fig, 1

Description

one

The invention relates to devices for heating products by radiation and by convention in extended electric furnaces in metallurgical and other fields.

The aim of the invention is to improve the uniformity of heating the product, increasing the strength of the device when used in electric furnaces.

FIG. 1 shows an electron-heating device, a section; .on FIG. 2 is the same, top view (from the side of the additional camera), in FIG. 3 - the same, bottom view (from the side of the heating chamber). The heating device contains a heating 1 and an additional chamber 2 with two inlet channels 3 for gas supply, separated by a heat-conducting partition A, grooves 5 for placing the heater 6 held by insulators 7, mounted on pin 8, the ends of the heaters have Bjmodes 9.

In the additional chamber, two zigzag channels 10 and 11 are perpendicular to the heater grooves for the passage of gas with a common collector 12 above the slots 13, which extend into the heating chamber. The channels and the collector have a common cover 14.

The electric heating device is installed by the heating chamber parallel to the heated object, for example, the moving strip 15, and the arrangement of the slots 13 must be perpendicular to the movement. strip (FIG. 1).

When the heater 6 is heated and the gas is supplied to the zigzag channels 10 and 11, the gas is heated by means of heat 12922082

la transmitted by the heat-conducting partition 4 from the heater and two streams enters the common collector 12, from which through the slots 13 into

5, in the form of a flat stream, together with the radiation flux, processes the moving strip 15.

Use of the proposed device in industrial electric furnaces

JO for the native coatings on the strip reduces the specific energy consumption in comparison with the existing furnaces by about 15-20%, and the material costs 6-7 times and improves the quality of the substances.

20

25

thirty

35

40

Claims (1)

Invention Formula An electric heating device for heating products with radiation and a convention, containing a heating chamber and an additional one with two gas inlet channels, separated by a heat-conducting partition, in which grooves parallel to each other with electric heaters placed in the nickname on the side of the heating chamber heating chambers, characterized in that, in order to increase the uniformity of heating of the product, to increase the strength of the device when used in continuous elec tropechah, slits in the wall are arranged perpendicular to the grooves of the heaters, and in the additional chamber are arranged perpendicular to the two slots heaters zigzag channel common collector of slits, and the input channels are situated diagonally on opposite sides of the partition. 0 five 0 five 0 Invention Formula An electric heating device for heating products with radiation and a convention, containing a heating chamber and an additional one with two gas inlet channels, separated by a heat-conducting partition, in which grooves parallel to each other with electric heaters placed in the nickname on the side of the heating chamber heating chambers, characterized in that, in order to increase the uniformity of heating of the product, to increase the strength of the device when used in continuous elec tropechah, slits in the wall are arranged perpendicular to the grooves of the heaters, and in the additional chamber are arranged perpendicular to the two slots heaters zigzag channel common collector of slits, and the input channels are situated diagonally on opposite sides of the partition. Editor G. Volkova Compiled by V. Barseg n Tehred L. Serdyukova Order 289/59 Tirac 802 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, K-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, st. Project, 4 3 Proofreader M.Sharoshi