CN201407894Y

CN201407894Y - Four-chamber low-burning loss aluminum alloy melting holding furnace

Info

Publication number: CN201407894Y
Application number: CN2009200737845U
Authority: CN
Inventors: 刘荣章; 王祺
Original assignee: ALM INDUSTRIAL FURNACE MANUFACTURE SHANGHAI Co Ltd
Current assignee: ALM INDUSTRIAL FURNACE MANUFACTURE SHANGHAI Co Ltd
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-02-17
Anticipated expiration: 2019-04-15

Abstract

The utility model discloses a four-chamber low-burning loss aluminum alloy melting holding furnace which comprises a furnace body (1), a heating-up chamber (8), a melting chamber (2), a burner arranged on a furnace cover, a melting chamber burner and a commissioning tower, and is characterized in that a replaceable carborundum outlet baffle plate (5) with high heat conductive coefficient is installed between the heating-up chamber (8) and an aluminum liquid outlet (6), a deslagging chamber baffle plate (4) made from high heat-conductive flame-proof material is arranged between the heating-up chamber (8) and the melting chamber (2), and a deslagging chamber (3) which is not only communicated with the melting chamber (2) on the front portion, but also communicated with the heating-up chamber(8) on the rear portion is isolated, thereby forming an aluminum alloy melting structure with one furnace and four chambers. The temperature of aluminum liquid in the four functional areas of the whole furnace changes consistently, and the four functional areas become an organic and coherent integral, which guarantees the quality of aluminum liquid, and provides technical supports for reasonablyimproving the heating efficiency and utilization.

Description

A kind of four Room bodies hang down scaling loss aluminum alloy melting holding furnace

Technical field

The utility model relates to a kind of novel aluminum alloy melting and heat preservation stove, and especially a kind of efficient low scaling loss high alumina water quality aluminum alloy melting holding furnace belongs to aluminium alloy compression casting, casting industry melting and heat preservation equipment class.

Background technology

Efficient tower type melting and heat preservation stove is that present aluminium alloy casting processing industry melts the most frequently used type of furnace of operation to the aluminium alloy solid, and this stove uses burner that the solid aluminium alloy is carried out heat fused.Body of heater is generally three Room body designs, the solid aluminium alloy is dropped into by the feeding tower (smokejack of holding concurrently) of melting furnace, the burner of bottom side carries out heat fused to the solid aluminium alloy, discharge out of the furnace after the melting solid aluminium alloy heat absorption of combustion product gases in feeding tower, heat up in low temperature aluminium alloy liquid inflow intensification chamber through fusing, deslagging refining, flow out to liquid outlet through the aluminium liquid behind the intensification deslagging refining through aluminium liquid slag trap, voltage supply casting or casting are used.The high-temperature flue gas of aluminium liquid intensification chamber burner is also discharged after the solid alloy heat absorption from this passage, and aluminium liquid intensification chamber uses bright flame long-flame burner that aluminium liquid liquid level is carried out radiation heating.It is indoor that the oxide that this kind type of furnace produces because of liquid aluminium liquid and fusing all flows into intensification, the oxide that aluminium liquid is of poor quality, need drop into more deslagging refining agent during deslagging refining, float in aluminium liquid surface has stopped the portion of hot radiation, increases scaling loss easily, increases intensification chamber atmosphere temperature, increases deslagging refining agent consumption, increases energy resource consumption.

In addition, between the aluminium liquid intensification chamber and delivery port of the melting and heat preservation stove that uses at present, a refractory material pushing off the slag dividing plate that the thickness that links to each other with body of heater is thicker, thermal conductivity factor is low is arranged, and in order to stop the scum silica frost that floats on aluminium liquid surface, this makes the aluminium liquid temperature difference of liquid outlet and intensification chamber increase.In order to make the actual use of delivery port aluminium liquid reach serviceability temperature, the intensification chamber that is in pushing off the slag dividing plate the inside then needs to be heated to higher temperature.This mode that makes the further rising of temperature of aluminum liquid not only can cause energy consumption, oxidization burning loss to increase, and aluminium liquid hydrogen content is increased influences aluminium liquid quality.

Therefore, how further to improve energy utilization rate, reduction aluminium liquid scaling loss, the minimizing deslagging refining agent consumption of aluminium alloy melting furnace, abandon at present this a small amount of high temperature aluminum liquid that need use for the back liquid outlet, a large amount of aluminium liquid whole in the holding furnace are promoted to incorrect, habitual three Room body fusings, the thermal insulation furnace body structure of higher temperature and risk one's life, more reasonably solve and use pure high temperature aluminum water and reduce this a pair of contradiction of scaling loss, just become the important measures that the sector is increased economic efficiency.

The utility model content

The purpose of the present utility model: the novel aluminum alloy melting and heat preservation stove that is intended to propose a kind of efficient suboxides scaling loss high alumina water quality.Keep under the prerequisite of fundamental characteristics of conventional melting and heat preservation stove, intensification chamber atmosphere and temperature of aluminum liquid, minimizing oxidization burning loss and deslagging refining agent consumption had both been reduced, also reduce because the aluminium liquid hydrogen that high temperature causes increases problem simultaneously, thereby improve the integrated heat efficiency and the aluminium water quality of melting furnace.

This four Room bodies hang down scaling loss aluminum alloy melting holding furnace, comprise body of heater, the intensification chamber, bell, melting chamber, be located at the burner on the bell, the melting chamber burner, feeding tower, it is characterized in that: removable in one of installation between intensification chamber and aluminium liquid delivery outlet, the siliceous liquid outlet baffle plate of carbonization with high thermal conductivity coefficient, between aluminium liquid intensification chamber and melting chamber, be provided with again simultaneously one have that high heat conduction refractory material makes remove grit chamber's baffle plate, isolate the perforation that both links to each other with anterior melting chamber, what be connected with intensification chamber, rear portion again removes the grit chamber, forms the aluminum alloy melting furnace structure of a stove four Room.

The described bottom, grit chamber of removing has passage to link to each other with the intensification chamber, and is provided with a dreg-blocking board that stops solid impurity bottom the grit chamber removing.

Remove the top of grit chamber and intensification chamber dividing plate, opened an exhaust gases passes again separately, make the high-temperature flue gas of intensification chamber can normally flow into melting chamber and utilize waste heat to heat up for solid-state aluminium ingot.

Described body of heater, the following low-temperature space of its liquid level uses aluminosilicate fiberboard, composite calcium silicate plate, and posts thermal reflecting coating between every layer of warming plate of furnace lining, and the above high temperature position part of liquid level has then adopted the splendid import nano-thermal-insulating plate of heat-insulating property.

This four Room bodies that propose according to above technical scheme hang down scaling loss aluminum alloy melting holding furnace, owing to remove the setting of grit chamber, top aluminium liquid scum silica frost is blocked in except that the grit chamber by plate washer, improved the degree of purity that flows into intensification chamber aluminium liquid, can significantly reduce the consumption of deslagging refining agent like this, simultaneously, owing to adopt the slag trap of material making between intensification chamber and aluminium liquid delivery outlet of high thermal conductivity coefficient, and the formation of setting up is removed the baffle plate of grit chamber, make in the whole stove that temperature of aluminum liquid is in the more organic coherent integral body of variations in temperature between four functional areas, can guarantee aluminium liquid quality and provide technical support the reasonable raising and the utilization of the efficiency of heating surface.

Description of drawings

Fig. 1 is the structural representation of the utility model fusing intensification chamber and the setting of aluminium liquid liquid outlet slag trap;

Fig. 2 is provided with structural representation for the utility model removes the grit chamber.

Among the figure: 1-body of heater 2-melting chamber 3-removes the 4-of grit chamber and removes the plate washer 5-of grit chamber liquid outlet plate washer 6-aluminium liquid liquid outlet 7-melting chamber burner 8-intensification chamber 9-dreg-blocking board 10-passage

The specific embodiment

Below further describe the utility model with reference to the accompanying drawings, and give embodiment of the present utility model.

This four Room bodies as shown in the figure hang down scaling loss aluminum alloy melting holding furnace, and it is that this improvement is mainly reflected in two aspects to a kind of inventive improvements of the efficient tower type melting and heat preservation stove of present aluminium alloy casting processing industry widespread usage:

One is installed the liquid outlet baffle plate 5 that removable high thermal conductivity coefficient carbonization is siliceous in traditional type of furnace between fusing intensification chamber 8 and aluminium liquid delivery outlet 6.The benefit of this design is: needn't improve the temperature of intensification chamber significantly for the temperature that guarantees liquid outlet aluminium liquid, because the siliceous liquid outlet baffle plate 5 of high thermal conductivity coefficient carbonization after improving itself just has heat conductivility preferably, therefore the aluminium liquid that flows into liquid outlet and the temperature difference between the aluminium liquid of intensification chamber can be not excessive, as long as the intensification chamber keeps suitable temperature, just can make the aluminium liquid of liquid outlet meet instructions for use, the heating energy consumption that the enforcement of this measure just can suitably reduce the former type of furnace when finishing this operation.

Its two, what be provided with between aluminium liquid intensification chamber 8 and melting chamber 2 that a high heat conduction refractory material makes removes grit chamber's baffle plate, isolate the perforation that not only links to each other with anterior melting chamber, but also be connected with intensification chamber, rear portion except that the grit chamber, form the aluminum alloy melting furnace structure of a stove four Room.The benefit of this design is: will be located between melting chamber 2 and the intensification chamber 8 except that grit chamber 3, the quality of the aluminium liquid that enters intensification chamber 8 is guaranteed, and the spatial design that should remove grit chamber 3 gets smaller, therefore in this environment, can reduce the consumption of deslagging refining agent, simultaneously owing to should also be to adopt the refractory material of high heat conduction to make except that the isolation baffle plate of grit chamber 3, therefore make this remove the operating temperature and the melting chamber temperature of last operation in the grit chamber 3, and the intensification chamber 8 interior temperature of back one operation all are in the coherent temperature environment.

The solid impurity that produces in melting chamber 2 work is blocked owing to remove the effect of grit chamber's 3 bottom dreg-blocking boards 9, and the aluminium liquid of fusing then enters intensification chamber 8 through path 10.

Just because of having taked above-mentioned two significant improvement, therefore this four Room bodies hang down scaling loss aluminum alloy melting holding furnace, all fusings of heating, slagging-off, intensification, insulation all are in the very coherent temperature environment, there is not bigger abrupt step in variations in temperature between the operating temperature of each chamber, thereby, in the utilization of the thermal efficiency, improved 5% according to this type of furnace after the theoretical calculation improvement for the combination property that improves melting furnace has been created condition.

Claims

1, the low scaling loss aluminum alloy melting holding furnace of a kind of four Room bodies, comprise body of heater (1), intensification chamber (8), melting chamber (2), be located at burner, melting chamber burner, feeding tower on the bell, it is characterized in that: be positioned at an installation removable high thermal conductivity coefficient carborundum liquid outlet baffle plate (5) between intensification chamber (8) and the aluminium liquid delivery outlet (6); One high heat conduction refractory material is set between intensification chamber (8) and melting chamber (2) again simultaneously removes grit chamber's baffle plate (4), isolate the perforation that can link to each other with anterior melting chamber (2), be connected with intensification chamber, rear portion (8) again remove grit chamber (3), form the aluminum alloy melting structure of a stove four Room.

2, the low scaling loss aluminum alloy melting holding furnace of a kind of four Room bodies as claimed in claim 1 is characterized in that: the described bottom, grit chamber (3) of removing is provided with passage (10) and links to each other with the intensification chamber, and is being provided with a step (9) that stops solid impurity bottom grit chamber (3).