CN202372000U - Low-burning-loss aluminum alloy melting heat-preserving furnace - Google Patents

Abstract

A low burning loss aluminum alloy melting and holding furnace, including a furnace body, a melting chamber, a rising chamber, a burner in the rising chamber, a slag removing baffle, a silicon carbide rod, a temperature controller, and a liquid outlet, and a slag removing baffle is installed in the rising chamber , silicon carbide rods, in which the slag removal baffle is installed on the upper right of the silicon carbide rod in the heating room. In addition to blocking the oxides produced by melting and reducing the amount of subsequent The top of the carbon rod can avoid the direct radiation of the silicon carbide rod by the burner in the heating chamber, which improves the service life of the silicon carbide rod; the temperature controller is used to control the temperature of the silicon carbide rod to ensure that the aluminum liquid It can still be maintained at 730°C-750°C, and the slag removal baffle is connected with the melting chamber and the heating chamber. Compared with the traditional aluminum alloy melting and holding furnace, this device has the effects of reducing the amount of slag removal refining agent, reducing oxidation burning loss, and reducing energy consumption.

Description

A low burning loss aluminum alloy melting and holding furnace

technical field

The utility model relates to a novel aluminum alloy melting and holding furnace, in particular to a low burning loss aluminum alloy melting and holding furnace, which belongs to the field of aluminum alloy casting.

Background technique

The melting and holding furnace is currently the most commonly used equipment for melting aluminum alloy solids in the aluminum alloy casting processing industry. This furnace uses burners to heat and melt solid aluminum alloys. The solid aluminum alloys are fed from the feeding tower of the melting furnace and burned at the bottom and side The device heats and melts the aluminum alloy, and the combustion flue gas is discharged through the aluminum alloy in the feeding tower after absorbing heat. The molten aluminum alloy flows into the heating chamber, and after being heated, flows to the liquid outlet for casting.

Because all the oxides produced by melting flow into the heating chamber for this type of furnace, the quality of molten aluminum is poor, and more slag-removing refining agents need to be invested in subsequent slag-removing refining, which increases the amount of slag-removing refining agents; oxides floating on the surface of aluminum liquid It blocks part of the heat radiation, increases the temperature of the greenhouse atmosphere, and increases the use of energy; the increase of oxides and the increase of the temperature of the atmosphere in the furnace will easily increase the burning loss; at the same time, because a large amount of heat energy will be lost in the subsequent slag removal and refining process, it is To ensure that the temperature of the aluminum solution after slag removal and refining can still reach the required temperature, a large amount of molten aluminum in the heating chamber must be raised to a higher temperature, and the temperature of the molten aluminum is directly proportional to the oxidation loss and the hydrogen absorption of the molten aluminum. Therefore There is an urgent need for improvement in traditional melting and holding furnaces.

Contents of the invention

The utility model aims at the defects of the existing melting and holding furnace, and provides a new type of equipment that can effectively reduce oxidation burning loss, reduce the amount of slag removal refining agent, and maintain the proper temperature of the melting and holding furnace rising room, specifically a low burning loss aluminum Alloy melting and holding furnace.

The technical solution to achieve the above purpose is: a low-burning aluminum alloy melting and holding furnace, including a furnace body, a melting chamber, a rising chamber, a burner in the rising chamber, a slag removal baffle, a silicon carbide rod, a temperature controller, and a liquid outlet. There are slag removal baffles and silicon carbide rods installed in the heating chamber. The slag removal baffle is installed on the upper right of the silicon carbide rods in the heating chamber. In addition to the dosage, because it is installed on the top of the silicon carbide rod, it can avoid the direct radiation of the silicon carbide rod by the burner in the heating room, which improves the service life of the silicon carbide rod; the temperature controller is used to control the temperature of the silicon carbide rod to ensure Under the condition of the burner temperature, the molten aluminum can still be kept at 730°C-750°C, and the slag removal baffle is connected with the melting chamber and the heating chamber.

Compared with the traditional aluminum alloy melting and holding furnace, due to the design of the slag removal baffle in the heating chamber, the molten aluminum scum generated in the melting chamber is blocked by the baffle outside the slag removal baffle, which is convenient for workers to directly remove slag during operation. The purity of the aluminum liquid flowing into the liquid outlet is improved; since the scum can be removed in the front, the amount of subsequent slag removal refining agent is greatly reduced; because the heating chamber is designed with silicon carbon rod heating, it can reduce the combustion of the heating chamber The temperature of the furnace can avoid more oxidation and burning loss caused by the high-temperature radiation of the aluminum liquid in the heating room burner, which reduces the temperature of the heating room atmosphere, and can ensure that the temperature of the aluminum liquid in the heating room is always maintained between 730 ° C and 750 ° C; therefore, the The device has the functions of reducing the amount of slag removal refining agent, reducing oxidation burning loss, and reducing energy consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, a low burning loss aluminum alloy melting and holding furnace includes a furnace body 1, a melting chamber 2, a rising chamber 3, a rising chamber burner 4, a slag removal baffle 5, a silicon carbide rod 6, and a temperature controller 7 , liquid outlet 8, slag removal baffle 5 and silicon carbide rod 6 are installed in the rising chamber 3, wherein the slag removal baffle 5 is installed on the upper right side of the silicon carbide rod 6 in the rising chamber, and the slag removal baffle 5 is used for blocking In addition to melting the oxides produced and reducing the amount of subsequent slag removal and refining agents, the installation on the silicon carbide rod 6 can prevent the burner 4 in the heating chamber from directly radiating the silicon carbide rod 6, thereby improving the service life of the silicon carbide rod 6; The temperature controller 7 is used to control the temperature of the silicon carbide rod 6 to ensure that the molten aluminum can be kept at 730°C-750°C while reducing the temperature of the burner 4 in the heating chamber. The slag removal baffle 5 and the melting chamber 2 and the heating chamber 3, the improvement of this melting and holding furnace is mainly reflected in two aspects:

First, a replaceable slag removal baffle 5 made of a material with high thermal conductivity is installed between the heating chamber 3 and the liquid aluminum outlet 8 in the traditional furnace type, so that the molten aluminum scum melted in the melting chamber 2 is blocked. In addition to the slag removal baffle plate 5, the purity of the aluminum liquid in the aluminum outlet 9 is improved, and in addition, the consumption of the slag removal refining agent is greatly reduced because the scum is pulled out.

Second, the silicon carbide rod 6 is set in the heating chamber 3, and the silicon carbide rod 6 is controlled by the temperature controller 7. By adjusting the temperature of the silicon carbide rod 6, the burner 4 in the heating chamber is changed to bake with fire to increase the temperature of the aluminum liquid The method reduces the oxidation burning loss of molten aluminum, reduces the problem of hydrogen absorption of molten aluminum caused by high temperature, reduces energy loss, and achieves a balance between the quality of molten aluminum, oxidation burning loss and energy consumption.

Claims (2)

1. one kind low scaling loss aluminum alloy melting holding furnace; It is characterized in that: this device comprises body of heater (1), melting chamber (2), intensification chamber (3), intensification chamber burner (4), slagging-off baffle plate (5), Elema (6), temperature controller (7), liquid outlet (8); Slagging-off baffle plate (5), Elema (6) are installed in the intensification chamber (3); Temperature controller (7) is in order to the temperature of control Elema (6); Guarantee that the aluminium fluid power remains on 730 ℃-750 ℃ under the situation of the temperature that reduces intensification chamber burner (4), slagging-off baffle plate (5) and melting chamber (2), intensification chamber (3) communicate, and this device has the effect that reduces deslagging refining agent consumption, reduces oxidization burning loss, cuts down the consumption of energy.

2. a kind of low scaling loss aluminum alloy melting holding furnace according to claim 1; The baffle plate (5) that it is characterized in that removing the gred is installed in the upper right side of intensification chamber Elema (6); Slagging-off baffle plate (5) is except in order to the consumption that stops oxide that fusing produces, reduces follow-up deslagging refining agent; Also, improved the service life of Elema (6) because of being installed in the top directly radiation Elema (6) of chamber burner (4) of can avoiding heating up of Elema (6).

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