SU984665A1 - Cooling casing - Google Patents

Description

(54) COOL SHIELD

one

The invention relates to foundry, in particular, to devices for cooling cast forms.

Known three-sided Upper side hip umbrella with double suction and supply of compensating air 1.

The disadvantage of this 3pHta is the high air consumption and, as a consequence, the high energy consumption and the lack of protection of the working space from sources of radiant energy.

Closest to the proposed casing to the technical essence and the achieved effect is a cooling chamber containing flat walls, covering the zone of heat and gas radiation and suction device 2.

The disadvantage of the described camera is also that the working area is unprotected from sources of radiant energy.

The aim of the invention is to increase the cooling efficiency of the cast forms and to reduce the possibility of heat radiation propagating into the working room.

This goal is achieved by the fact that in the cooling casing containing flat walls, covering the zone of heat and gas radiation and the suction device, the walls are made double and form open to the top and bottom channels for natural aeration.

5Directional flow of air masses

in the overlap, it is created by the heat emitted by the free surface of the metal mirror of the cast form, which contributes to the intensive heat exchange of the walls circulating Q between them by air.

FIG. 1 shows the casing, a general view; in fig; 2 shows section A-A in FIG. one.

The casing encloses the continuously moving conveyor 1, on which the cast forms 2 are installed, and consists of an accumulator partition 3, a partition 4, a channel 5 for natural aeration, a channel 6 for suction of hot gases. The heat flux from the surface of an open metal mirror is denoted by the letter S.

The casing works in the following way.

20

On i a continuously moving casting conveyor 1, cast forms 2 are installed, heat and radiant energy S from the mirror of the cast forms metal is accumulated on the partition 3 (with a high concentration of

hot gas suction channel 6, which creates directional notes of air masses in channel 5 for natural aeration, which simultaneously prevents the spread of gases into the workshop, and their removal is carried out through gas suction channel 6. The barrier 4, the temperature of which during the operation of the plant does not exceed 40 ° C, at the same time limits the zone of distribution of thermal energy and creates a channel 5 for natural aeration.

The use of the invention allows cooling the cast molds from 1000 ° C to the temperature of knockout, thereby reducing the length of the cooling sections of the casting conveyors, shortening the cooling cycle of the cast molds, localizing the hot gases, and also protecting the dangerous high-temperature zone, which also improves sanitary and hygienic conditions. conditions of work in the workshop, thereby improving the productivity of workers in the casting and embossing department of the foundry.

Claims (2)

1.Aksenov P.N. Foundry equipment. M., “Mechanical Engineering, 1977, p. 485. 2. USSR author's certificate number 531654, cl. B 22 D 47/02, 1971. srig.1