SU363850A1 - INSTALLATION FOR BURNING THE REMOVAL DRAINS - Google Patents

Description

one

A known device for firing the barrel cores, comprising a tunnel made from several compartments, a feed mechanism and heating devices, does not ensure uniform and high-quality roasting of the barrel cores.

The purpose of the invention is to provide uniform and high-quality roasting of the cores of the drums with a concentrated stream of hot air.

This is achieved by the fact that the feeding mechanism is designed in the form of chain conveyors, an accumulator with a cut-off device and pushers controlled by copiers.

FIG. 1 shows the proposed installation; in fig. 2 - the same in terms of; in fig. 3 is a section along the line A-A in FIG. one; in fig. 4 is a section along BB in FIG. one; in fig. 5 - heat transfer scheme.

The installation includes a tunnel /, which is divided by partition 2 into two compartments. In each compartment, feed mechanisms are installed in the form of double-chain conveyors 3, driven by a common drive 4. At the end of each compartment, electroheaters 5 with electric motors b, placed outside the wall, are installed.

To the loading window in the first compartment are adjacent inclined guides for loading on them the cores, equipped with a lever

cut-off 7 and serving to cut the cores on one brush when loading.

In front of the electric heater, a spring-loaded pusher 8 is installed at the end of the first compartment, transferring the skeleton from the chain conveyor of the first compartment to the chain conveyor of the second compartment.

Inclined rails also adjoin the unloading window. To push through

the second conveyor of the cores serves as a pusher 9. The pushers 8 ii 9 are controlled by copiers 10 and 11, and the cutter 7 is operated by copier 12.

Copiers are driven from conveyors.

Above the compartments are two air ducts 13 for circulating hot air. The gear 14, connecting two chain conveyors, provides them with oncoming traffic. The tunnel is equipped with a heat exchanger 15 with a pipe for discharging humidified hot air into the atmosphere.

The installation works as follows. A cutter 7, controlled by a cam 12, cuts off the inclined storage device along one frame, which roll one after the other onto a moving chain conveyor. Bodies 16 in a horizontal position on the conveyor form a tube continuously moving towards the flow of hot air which is being injected by the heater into the first compartment.

The proposed installation consists of two heating zones (see Fig. 5). It can be made in the form of one or several linear compartments. The heat treatment of the core takes place at the same temperature in all compartments, as well as with stepwise temperature changes, which is achieved by regulating the heating of the heaters.

In front of the heater, the pusher 8 pushes the core from the conveyor of the first zone to the counter conveyor of the second zone. At the end of the conveyor, the pusher 9 burns the skeleton and pushes it out.

The cold air, the passage through the heat exchanger 15, is heated and flows through the duct into the electrocalorifer of the second zone.

Hot air begins to circulate in the second compartment. A portion of the fresh and incoming air is sucked through the gate 17 by the electric heater of the first zone. This heater creates a second circulating branch in the first zone. The intake of cold air is controlled by gate 18. When the air in the first zone is sufficiently humidified, it passes through the gate

19 is emitted into the atmosphere through a pipe. Moistened warm air gives off some heat through the heat exchanger to the newly entering cold air.

The use of hot air for roasting ensures that the roasting is the same for all cores. The air temperature is governed by the number of heating elements included in the heaters. The installation outside is protected by thermal insulation.

Subject invention

An apparatus for firing the barrel cores, comprising a tunnel made of several compartments, a feed mechanism and heating devices, characterized in that, in order to ensure a uniform and high quality barrel cores by a concentrated stream of hot air, the feed mechanism is made in the form of chain conveyors cutter and cam followers controlled by copiers.

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