SU561859A1 - Kolpakova furnace - Google Patents

Description

The invention relates to heating devices intended for the heat treatment of large-sized products, and may be used in various industries, for example, in the boiler industry for the heat treatment of pipe block collectors. A known Kolnak heat treatment furnace, consisting of a bottom part with a product platform and a closing cap on which the burners, the fan and other furnace headset 1 are fixed.

Also known is a heat treatment design, consisting of a metal lined cap with heating devices and placed on a portable stand on racks 2.

To heat the collector in such a furnace, the tube unit is installed by a bridge crane on a special stand and placed on supports, which are selected depending on the structural dimensions of the tube blocks. Then, using the same bridge crane, the furnace is installed on the stands of the stand covering the heated collector.

However, when the furnace is operating as a result of unorganized gas pyrolkution in the working volume, there is a significant non-uniformity of heating along the length of the collector, while the cold-air suction from the open bottom of the furnace is also a cause of increased scaling.

In addition, in connection with the need to install and remove a furnace from a stand, for heating each collector of a tubular block, a known heating device requires frequent

repairs of lining, headset and other furnace assemblies, which significantly reduces the service life

The purpose of the invention is to improve the uniformity of heating products.

This is achieved by the fact that the furnace is equipped with hydraulic cylinders, on the rods of which a cap is placed, and the stand is sectional, with one of the sections being made movable in a horizontal plane.

FIG. 1 depicts an oven, general view; in fig. 2 - the same in terms of.

The flow consists of a metal cap 1 lined with refractory and heat insulating bricks with built-in gas-burning devices 2 mounted on a fixed 3 section-plate and a movable 4 plate forming the furnace iodine (stand), of which the fixed plate is rigidly connected to the cap and the movable plate through mechanism 5

the movement mounted on the guides 6 is made with the possibility of horizontal movement, and the hydraulic cylinders 7, the rods of which are rigidly connected with the cap through the fixed plate.

The collector 8 is laid on the trolley 9 mounted for movement in under "and"

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bottom space. A ventilation umbrella 10 is placed on top of the housing for exhaust gas exhaust.

The furnace works as follows.

The cap of the hydraulic cylinders is extended to the extreme upper polishing, and the movement mechanism, moving along the guides, retracts the movable plate to the extreme left position, opening the iodine opening. Then, the treated collector with the part of coils adjacent to it, is fed by means of a loading carriage under the cap not fully against the fixed plate. Lowering the cap on the product, the collector pushes with the help of the same carriage all the way into the fixed plate.

Then the movable plate is returned to its original position by the movement mechanism, blocking the opening in the hearth.

After that, the furnace is ignited and the product is heated to technologically required temperatures. After the end of heating, the burner products are turned off, the movable plate moves to the extreme left position, the hood is raised and the heat-treated part is fed by a roller table to the action zone of the bridge crane.

Stationary installation of the furnace body (hood) on the hydraulic cylinder rods will significantly increase the service life of the lining, burners, headsets and other components, as well as ensure uniform heating of the product, reduce scaling, and significantly reduce flue gas emissions into the workshop.

Claims (2)

1. The patent of Germany M 1758511, cl. 18C, 1970. 2. Avt. St. No. 326228, cl. C 21D 9/00, (prototype). iPi / g.f (Pus.2.