RU34414U1 - Mold metal cooling system on a conveyor of a filling machine - Google Patents

Description

The metal cooling system in the molds on the conveyor of the filling machine.

The proposal relates to devices for cooling metal poured into molds on a conveyor.

Known Machine for pouring liquid non-ferrous metals into molds, and.with. USSR No. 265394, class B22D 35/04, 1967 (1).

The well-known machine contains a chain conveyor with a metal pouring mechanism, a water cooling system in the form of nozzles, spraying them; on top of them, cooling liquid onto the metal poured into the molds, as well as exhaust ventilation.

The known machine provides insufficiently effective cooling of liquid metal in some alloys, for example silumin.

Closest to the proposed technical solution is a metal cooling system in; molds of a casting machine according to as USSR No. 1560391.1 class V22D 35/04, 1987 (2).

The known system adopted for the prototype contains spray guns for pouring ingots with coolant, as well as molds on the last third of the conveyor. When exposed to vibration in a vertical direction, a gap occurs between the mold and the ingot, into which coolant penetrates from the surface of the ingots. This implementation provides a sufficiently effective | | cooling of the metal in the molds. The disadvantage of the system is the complexity of its design, as well as the fact that vibration negatively affects the work: the ability and durability of the mechanisms.

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IPC: V22D 35/04

The objective of this proposal was to increase the technical and economic indicators of the cooling system.

The technical result of the proposal is to simplify the system and ensure a sufficiently high efficiency of cooling the metal in the molds on the conveyor.

The technical result is achieved by the fact that in the metal cooling system in the molds on the conveyor of the casting machine, nozzles mounted above the conveyor and connected to the pipeline with coolant are additionally connected to the compressed air pipeline to obtain a mixture of compressed air with coolant intended for; the top of this mixture to the metal in the molds, for example, the nozzles are installed inside the shelter attached to the conveyor, and under the conveyor there are additional nozzles for supplying a mixture of compressed air with coolant vertically from the bottom up or at a different angle to the horizon on the molds with metal

The essence of the proposal is as follows. It is known that water vapor more effectively takes away heat from a hot body than water, see, for example, E.German Continuous Casting The State Scientific and Technical Publishing House of Black and Color Literature 1 | metallurgy. M. 1961 p.233) (3), where it is said: According to the data of Electron Co., it is necessary to strive for the evaporation of the coolant in order to increase its ability to absorb heat by the value of the heat of vaporization.

In turn, a liquid stream is easier to vaporize if it is crushed with compressed air before contact with a hot body. The proposed solution provides the implementation of such an operation by

additional supply of compressed air to the liquid atomization system by nozzles.

At the same time, in order to increase the efficiency of the effect of the vapor-air medium on the metal in the molds formed when the jet of coolant crushed by compressed air comes into contact with the metal, the forced cooling section is provided with a shelter in which these nozzles are installed.

In addition, in addition to the nozzles installed in a shelter above the conveyor, the proposed technical solution provides for the installation of nozzles under the conveyor to supply a mixture of compressed air, with coolant, to the molds with metal.

General signs of the proposed system and prototype are the following features. The presence of nozzles (sprayed) installed above the conveyor for the influence of the cooling medium on the metal in the mold.

The main difference is that the coolant in the cooling system is used as a mixture of liquid (water) with compressed air. Also, the implementation provides a more efficient conversion of liquid into steam, and steam, in turn, more effectively takes away heat from the metal molds.

Another difference is that the conveyor of the filling machine is equipped with a shelter, inside of which nozzles are installed for supplying the mixture from above: compressed air with liquid to the metal in the molds.

The presence of a shelter provides an improvement in the cooling efficiency by reducing the losses of the vapor-air medium generated from the contact of the kayel fluid with hot metal in the molds.

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Another difference is that in addition, nozzles are installed under the conveyor for supplying a mixture of liquid with compressed air to the molds with metal vertically from the bottom up or at a different angle to the horizon. This embodiment also contributes to an increase in cooling efficiency due to the two-sided exposure of the cooling medium to the metal in the molds.

Other differences are that the conveyor can be equipped with exhaust ventilation, as well as a pallet under the conveyor for collecting and returning the bead fluid to the cooling system.

These differences allow us to conclude that the proposed cooling system meets the condition of novelty.

To compare the proposed system with known systems, a search was conducted on patent and scientific literature. Known Mashchina: for pouring liquid non-ferrous metals into ingot molds (1) |.

The known machine as well as the proposed one contains a cooling system in the form of nozzles spraying coolant from above onto the metal in the molds, as well as exhaust ventilation.

The difference lies in the fact that nozzles are additionally installed under the kbnweyer for supplying a mixture of compressed air with liquid to the molds with metal vertically from the bottom up or at a different angle to the horizon. Another difference is that the exhaust ventilation in the proposed embodiment is made in a shelter at the irrigation area of the molds with metal coolant, while in the known solution it is made in the form of umbrellas installed on the conveyor in the same area. These differences provide

it.

more efficient cooling of molds with metal

coolant ..;

Given the above, we can conclude that the proposed combination of known and new features meets the eligibility condition of industrial applicability and the level of technology.

The proposal is illustrated by the drawing, where in Fig. 1 shows a general view of the system, in Fig. 2 is a diagram of the supply of coolant and compressed air to the nozzles -;

Themes.

The cooling system contains nozzles 1, set;

embedded over conveyor 2 and nozzle 3; under the conveyor 2. Injectors 1 and 3 are connected; To pipe- j

wire 4 with coolant and pipe 5

with compressed air .;

Nozzles 1 are installed inside the shelter b, pri-;

attached to the frame of the conveyor 2, equipped with:

mi 7 for metal 8.I

Shelter b is equipped with a pipe 9 for inenia with

EXHAUST ventilation (not shown in the drawing)

At the bottom of the conveyor 2, a pallet 10 is installed.

with drain pipe 11 for collection and return

fluid into the cooling system. |

Injectors 1.3 can be installed with vertical-I

direction of the cooling stream or at another angle to the horizon.

The system operates as follows.

Molds 7 with metal 8 poured into them enter the shelter zone 6, in which they are subjected to intensive cooling by a mixture of liquid with compressed air: from the upper nozzles 1 and lower 3. A significant part of the liquid when meeting with hot metal 8 in the molds 7

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evaporates and is removed through the pipe 9 by the system.

The other part flows into the pan 10 and then through the drain pipe 11 returns to the cooling system.

Thus, a simple metal cooling system in the molds on the conveyor provides effective cooling with circulating fluid.

Head of the Patent and Licensing Division of OJSC SibVAMI Production Director 000 SUAL-PM / V.T. (T; tepanov L.S. Golubtsov (

Claims (3)

1. The metal cooling system in the molds on the conveyor of the filling machine, containing nozzles connected to the pipeline with coolant and installed above the conveyor, characterized in that the nozzles are additionally connected to the compressed air pipeline to obtain a mixture of compressed air with coolant, intended to be supplied from above this mixture on the metal in the molds, while the nozzles are installed inside the shelter attached to the conveyor, and under the conveyor are additionally installed nozzles for supplying the mixture and compressed air with coolant from the bottom vertically up or at a different angle to the horizon on the molds with metal. 2. The system according to claim 1, characterized in that the shelter is equipped with exhaust ventilation. 3. The system according to claim 1, characterized in that under the conveyor at the site of exposure of the cooling mixture to the molds with metal, a tray is installed for collecting and returning the circulating fluid.