SU366329A1 - AUTOMATIC CAROUSEL ELECTRIC FURNACE FOR HEATING LIGHT ALLOYS PREPARATIONS - Google Patents

Description

one

The invention relates to the field of heating billets before plastic deformation and can be used to heat for stamping billets of aluminum alloy or other light alloys.

A known automatic carousel electric furnace for heating billets from light alloys, comprising a heat-insulated heating chamber, a mechanism for loading billets into a furnace rotating under, and a mechanism for unloading heated billets with an inclined chute.

However, in such furnaces, it is impossible to load and heat the blanks in bulk in certain portions, which is appropriate in furnaces with forced heat carrier movement and leads to an increase in the heat transfer coefficient and furnace productivity.

In the proposed furnace, the possibility of heating and loading in bulk is ensured by the fact that the rotating under the furnace is provided with hoppers mounted around its perimeter with hinged bottoms that interact with the circular open guides installed under the furnace bottom with a connector under the discharge tray. In this case, the ends of the guides in places

the connector is cut at angles, which, when interacting with the bottoms, alternate opening and closing of the latter. FIG. 1 shows the proposed oven,

gpodolny section; in fig. 2 is a section along A-A in FIG. one; in fig. 3 is a section along BB in FIG. 2; in fig. 4 is a diagram of the interaction of the bunkers with the bottom boards.

The furnace consists of a heat-insulated heating chamber 1, in which an electric air heater 2 is located, suspended from a removable furnace roof with the help of pipes, a sleeve 3 loads, a box 4 charges, a rotating hearth 5 (see Fig. 3).

Under 5 contains two shells, inner and outer, between which are inserted and welded sheets, forming sections - bunker 6, evenly placed on the hearth of the furnace. Bottom-mounted bottom plates 7 are attached to the hoppers on the hinges, which, with their ribs (see Fig. 4), slide along closed-loop guides 8 (see Fig. 2) with a connector above the discharge box 9. The rotary under 5 is fixed by brackets 10, and the guides by brackets and, which, in turn, are fixed to the inner wall of the furnace. The furnace works as follows.

and

Filling the next batch of blanks in the pocket 12 of the boot device, include a pneumatic actuator 13, which makes a working stroke. The flap M opens the window, the pocket is installed against the loading window, and the blanks on an inclined arm enter the next hopper of the rotating hearth.

After that, the pneumatic actuator switches to idling, the flap closes the loading window, and the pneumatic actuator of the rotating hearth, making a working stroke, rotates the bottom one position forward anticlockwise. At this time, the folding bottom of the next bunker is closed, and it is ready for loading, and for the next bunker, the folding bottom is opened, the fixing device fixes the hearth, and the heated blanks through the discharge hose through the discharge window opened at that time, from where the worker takes one piece.

Subject invention

An automatic carousel electric furnace for heating billets from light alloys, comprising a heat-insulated heating chamber, a mechanism for loading billets into a furnace rotating under, and a mechanism for unloading heated billets with an inclined chute, characterized in that

ensuring the loading and unloading of the blanks in bulk from the furnace in definite portions and increasing the operating efficiency of the furnace, rotating under the furnace is provided with bins mounted along its perimeter with

hinged bottoms interacting with circular unclosed guide rails installed under the bottom of the furnace with a connector above the discharge tray; at the same time the ends of the guides in the places of the connector

cut at angles, providing the interaction with the bottoms alternate opening and closing of the latter.

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