CN206832041U - A kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective - Google Patents

Abstract

A kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective of the utility model, including a shell and the pincers pot being contained in shell and a decontamination case, circle is provided with a zone of heating on the outside of pincers pot, one heat-insulation layer is located between shell and zone of heating, and pincers pot includes a host cavity and an opening positioned at the upper end of host cavity and the periphery of a lid sealed opening；Also include an air inlet pipe and host cavity and nitrogen source are connected by lid, one blast pipe is connected including a house steward by lid with host cavity, house steward is connected with a branch pipe a and decontaminates the upper end of case, and one branch pipe b connection house steward and decontaminate case lower end, one return duct connects host cavity with decontaminating the upper end of case by lid, house steward is provided with an air exhauster, is respectively equipped with a valve A, a valve B and a valve C on branch pipe a and branch pipe b and return duct, decontamination case lower end also has a leakage port.The utility model has the advantages that energy-conserving and environment-protective, aluminum-resistant oxidation.

Description

A kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective

Technical field

It the utility model is related to aluminium melting furnace technical field, and in particular to a kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective.

Background technology

Aluminium alloy is most widely used a kind of non-ferrous metal result material in industry, in Aeronautics and Astronautics, automobile, machinery With extensive application in manufacture, ship and chemical industry.The rapid development of industrial economy, to the demand day of Welded structural member Benefit increases, and the Research on Weldability enabled aluminum alloy to is also goed deep into therewith, and aluminium alloy is to apply most alloys at present.Aluminium and aluminium alloy can With with a variety of method meltings.Often coreless induction furnace and channel induction furnace, crucible furnace and reflective open hearth is used (to make With natural gas or fuel oil combustion) and resistance furnace and electric radiation furnace.Aluminium simultaneously forms highly stable oxygen in solution surface Compound.The speed of oxidation increases with the rise of temperature and the presence of some alloying elements (such as magnesium and beryllium).And if aluminium is molten Liquid surface is not interfered, then on its surface, the oxidation film of formation is self limitation, and any turbulent flow will can all aoxidize Thing film mixes in most solution, and produces fresh surface and formed with being advantageous to more oxides.The oxidation of generation Thing film and oxide impurity do serious harm on the performance of aluminum casting, however, in alloy smelting, the transhipment of fusing metal or cast and casting Type can all cause turbulent flow during filling.The oxide-film of casting then forms the fragile face easily failed, cast aluminium alloy mechanics The inhomogeneities of performance exactly precisely due to caused by the presence of these oxide-films, if without these oxide-films, it is uneven Property will be reduced, and the repeatability of cast properties will be better than forging, and during with X-ray examination, these oxide-films are typically invisible , but must accomplish to prevent in advance and not wait and go to repair again when finding afterwards.

Substantial amounts of waste gas can be also produced during smelting aluminum, these waste gas are not discharged into the external world by purification can be to people Body and atmosphere cause unnecessary injury.Therefore, for environmental protection and the health of people, and it is badly in need of solving now The problem of.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is the provision of a kind of anti-oxidant aluminum melting of energy-conserving and environment-protective Stove, to solve easy oxidized and caused exhaust emission environment when existing aluminium melts, endanger the defects of health of people.

To achieve the above object, the anti-oxidant aluminium melting furnace of a kind of energy-conserving and environment-protective of the utility model, including a shell and receipts The pincers pot and a decontamination case being dissolved in the shell, the pincers pot outside circle are provided with a zone of heating, and a heat-insulation layer is located at institute State between shell and the zone of heating, the pincers pot includes a host cavity and an opening positioned at the upper end and one of the host cavity Lid seals the periphery of the opening；Also include an air inlet pipe and the host cavity and nitrogen source, an exhaust are connected by the lid Pipe includes a house steward and connected by the lid with the host cavity, and the house steward and the case that decontaminates are connected with a branch pipe a Upper end, and a branch pipe b connect the lower end of the house steward and the decontamination case, and a return duct connects the receipts by the lid The upper end of cavity volume and the decontamination case, the house steward are provided with an air exhauster, the branch pipe a and the branch pipe b and described time A valve A, a valve B and a valve C are respectively equipped with flow tube, the decontamination case lower end also has a leakage port.

Preferably, the zone of heating is to be wound in some electromagnetic induction coils on the outside of the pincers pot, some electromagnetism Induction coil electrically connects with the controller positioned at the outer side.

Preferably, there is the built-in circuit electrically connected with the electromagnetic induction coil and a high-frequency electrical in the controller Source connecting terminal and a low-frequency power connecting terminal, for the high frequency electric source connecting terminal or with the low-frequency power One selecting switch of connecting terminal contact is connected with the power connector end mouth of the built-in circuit.

Preferably, a temperature sensor is provided with the pincers pot, the temperature sensor electrically connects with the selecting switch.

Fluorine cryogen is added with the decontamination case, the specific fluorine cryogen is argon gas.

Compared with prior art, its advantage is the utility model：A kind of antioxygen of energy-conserving and environment-protective of the present utility model Change aluminium melting furnace, (1) nitrogen flows into the pincers pot through the air inlet pipe from nitrogen source, and the oxygen in the pincers pot is passed through into the decontamination The leakage port discharge of case, reduce the content of oxygen in the pincers pot, quilt when being effectively prevented aluminum or aluminum alloy fusing Oxidation；(2) waste gas caused by impurity is taken out by the house steward and the branch pipe b when air exhauster melts aluminium in the pincers pot Enter the decontamination case, waste gas is purified in the decontamination case, then the return duct remaining the high-temp waste gas after being cleaned Remaining heat is imported in the pincers pot, is recycled heat, is greatly saved the energy；(3) simple in construction, operation is easy.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the anti-oxidant aluminium melting furnace of energy-conserving and environment-protective of the utility model；

Fig. 2 is a kind of circuit diagram of the anti-oxidant aluminium melting furnace of energy-conserving and environment-protective of the utility model.

Embodiment

To describe technology contents, construction feature, institute's reached purpose and effect of the utility model in detail, reality is hereby enumerated below Apply example and coordinate accompanying drawing to be explained in detail.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality The limitation of novel protected scope.

Referring to shown in Fig. 1 and Fig. 2, the utility model provides a kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective, including outside one Shell 1 decontaminates case 3 with the pincers pot 2 and one being contained in the shell 1, and the outside of pincers pot 2, which is enclosed, is provided with a zone of heating 4, and one Heat-insulation layer 5 is located between the shell 1 and the zone of heating 4, and the pincers pot 1 includes a host cavity 22 and an opening positioned at described The upper end of host cavity 22 and a lid 21 seal the periphery of the opening；Also connected including an air inlet pipe 6 by the lid 21 Lead to the host cavity 22 and nitrogen source, a blast pipe are connected including a house steward 7 by the lid 21 with the host cavity 22, and one Branch pipe a connects the upper end of the house steward 7 and the decontamination case 3, and a branch pipe b connects the house steward 7 and the decontamination case 3 Lower end, a return duct 8 are connected the upper end of the host cavity 22 and the decontamination case 3 by the lid 21, set on the house steward There is an air exhauster 70, a valve A, a valve B and one are respectively equipped with the branch pipe a and the branch pipe b and the return duct 8 Valve C, decontamination case 3 lower end also have a leakage port 9.

The zone of heating 5 is to be wound in some electromagnetic induction coils on the outside of the pincers pot 2, some electromagnetic induction lines Enclose and electrically connected with the controller 10 positioned at the outside of shell 1.Have and the electromagnetic induction coil in the controller 10 Electrical connection a built-in circuit 11 and an a high frequency electric source connecting terminal G and low-frequency power connecting terminal D, for the height Frequency power connecting terminal G or the selecting switch 13 contacted with the low-frequency power connecting terminal D and the built-in circuit 11 Power connector end mouth 12 connect.A temperature sensor, the temperature sensor and the selecting switch are provided with the pincers pot 2 13 electrical connections.The pincers pot 2 is directly heated using the electromagnetic induction coil, existing aluminium melting furnace is avoided and is first added by flame Air in hot stove body, by the air heating tongs pot between body of heater and pincers pot, and cause unnecessary heat waste, and It is more environmentally friendly using electrical heating.When the temperature in the pincers pot 2 is not reaching to the fusion temperature of aluminium, the temperature sensor will be low Warm signal is transferred to the selecting switch 13, and the selecting switch 13 is connected with the high frequency electric source connecting terminal G automatically, then High frequency voltage produces substantial amounts of heat to heat the pincers by some electromagnetic induction coils, some electromagnetic induction coils Pot 2；When the temperature in the pincers pot 2 has reached the fusion temperature of aluminium, high temperature signal is transferred to institute by the temperature sensor State selecting switch 13, the selecting switch 13 is connected with the low-frequency power connecting terminal D automatically, if then low-frequency voltage by The electromagnetic induction coil is done, some electromagnetic induction coils produce a small amount of heat to ensure that the pincers kettle temperature is constant, Prevent the too low aluminium of temperature from condensing, while avoid temperature too high and also melt impurity (such as iron, copper), prevent aluminium from from aluminium alloy Separation.Also, automatic temperature-controlled performance, moreover it is possible to the effective waste for reducing the energy, play a part of energy-conservation.

Fluorine cryogen is added with the decontamination case 3, the specific fluorine cryogen is argon gas.

In use, opening the valve A and the air exhauster 70 and the leakage port 9, lead to nitrogen into the pincers pot 3 Gas, by the oxygen in the pincers pot 2 via the house steward 7, the branch pipe a and the decontamination case 3 and the row of the leakage port 9 Go out；Then, stop nitrogen supply (NS), simultaneously close off the leakage port 9 and the valve A, open the valve B and the valve C, Then the pincers pot 2 is heated.

Compared with prior art, its advantage is the utility model：A kind of antioxygen of energy-conserving and environment-protective of the present utility model Change aluminium melting furnace, (1) nitrogen flows into the pincers pot 2 through the air inlet pipe 6 from nitrogen source, the oxygen in the pincers pot 2 is passed through described The leakage port 9 of decontamination case 3 is discharged, and is reduced the content of oxygen in the pincers pot 3, is effectively prevented aluminum or aluminum alloy and melts It is oxidized during change；(2) waste gas caused by impurity passes through the He of house steward 7 when the air exhauster 70 melts aluminium in the pincers pot 2 The branch pipe b is pumped into the decontamination case 3, waste gas is purified in the decontamination case 3, after then the return duct 8 will be cleaned The remaining heat of high-temp waste gas import in the pincers pot 3, recycle heat, greatly save the energy；(3) structure letter Single, operation is easy.

In summary, the only preferred embodiment of the utility model, does not limit the scope of protection of the utility model with this, all The equivalent changes and modifications made according to the utility model patent scope and description, it is all what the utility model patent covered Within the scope of.

Claims (6)

1. a kind of anti-oxidant aluminium melting furnace of energy-conserving and environment-protective, including a shell remove with the pincers pot being contained in the shell and one Dirty case, the pincers pot outside circle are provided with a zone of heating, and a heat-insulation layer is located between the shell and the zone of heating, the pincers pot The periphery of the opening is sealed positioned at the upper end of the host cavity and a lid including a host cavity and an opening；Its feature exists In：Also include an air inlet pipe and pass through including a house steward described by the lid connection host cavity and nitrogen source, a blast pipe Lid is connected with the host cavity, and the upper end of the house steward and the decontamination case, and branch pipe b connections are connected with a branch pipe a The house steward and the lower end of the decontamination case, a return duct connect the host cavity by the lid and decontaminate the upper of case with described End, the house steward are provided with an air exhauster, a valve are respectively equipped with the branch pipe a and the branch pipe b and the return duct A, an a valve B and valve C, the decontamination case lower end also has a leakage port.

A kind of 2. anti-oxidant aluminium melting furnace of energy-conserving and environment-protective according to claim 1, it is characterised in that：The zone of heating is to twine Some electromagnetic induction coils being around on the outside of the pincers pot, some electromagnetic induction coils are with being located at the one of the outer side Controller electrically connects.

A kind of 3. anti-oxidant aluminium melting furnace of energy-conserving and environment-protective according to claim 2, it is characterised in that：Have in the controller Have and be connected with a built-in circuit of electromagnetic induction coil electrical connection and a high frequency electric source connecting terminal and a low-frequency power Contact, for the high frequency electric source connecting terminal or the selecting switch contacted with the low-frequency power connecting terminal and institute State the power connector end mouth connection of built-in circuit.

A kind of 4. anti-oxidant aluminium melting furnace of energy-conserving and environment-protective according to claim 3, it is characterised in that：It is provided with the pincers pot One temperature sensor, the temperature sensor electrically connect with the selecting switch.

A kind of 5. anti-oxidant aluminium melting furnace of energy-conserving and environment-protective according to claim 1, it is characterised in that：Add in the decontamination case Added with fluorine cryogen.

A kind of 6. anti-oxidant aluminium melting furnace of energy-conserving and environment-protective according to claim 5, it is characterised in that：The fluorine cryogen is argon Gas.