A kind of Welded material melting continuous casting installation for castingTechnical field
It the utility model is related to smelting equipment technical field, and in particular to a kind of aluminum alloy materials melting continuous casting installation for casting.
Background technology
As national energy-saving emission reduction targets are more and clearer and more definite, aluminium replaces copper, and aluminium has increasingly obtained all trades and professions instead of steelAccreditation.Therefore, the Welded material of high-quality is the important component of aluminum alloy materials application.Current aluminium alloyThe melting continuous casting technology of material is very ripe.A set of melting continuous casting installation for casting daily output is up to tens tons.But blowing out maintenance every timeCycle for changing quality is long, costly (expense is up to hundreds of thousands), and the fixed input of a set of equipment is up to thousands ofTen thousand.And the use of Welded material accounts for 5% or so of whole aluminium alloy total amount, and it is wide in variety (5356,5183,5083rd, 4043,4047,1100 etc.).
The scale of domestic Welded material manufacturer is all smaller at present, is difficult to adopt the throwing of above-mentioned mature technologyEnter and safeguard.A quality grade poor compared with the product of import for domestic Welded material main at present simultaneously.At presentAs the Welded material of the industries such as shipbuilding, aviation, high ferro, pressure vessel relies primarily on import.
Utility model content
The purpose of this utility model improves the quality of Welded material, reduces the maintenance expense of equipment and improves yield.
To achieve these goals, the utility model provides a kind of Welded material melting continuous casting installation for casting, includingAt least one smelting furnace, flue, refining case, refining case are arranged in flue, and smelting furnace flows through flue by chute, and refining case is alsoConnected with holding furnace, wherein,
Refining case includes depassing unit, the filter being sequentially connected with.
Further, ceramic filter plate is provided between depassing unit and filter.
Further, depassing unit is divided into one-level except gas-bearing formation and two level remove gas-bearing formation by ceramic filter plate.
Further, filter is tubular type electromagnetic adsorption filter.
Further, flue air inlet and gas outlet are provided with flue.
In the above-mentioned technical solutions, the utility model reduces by using using for melting furnace, refining case and holding furnaceThe equipment cost and equipment maintenance cost arrived in aluminium alloy production process, meanwhile, multi-stage degassing, multistage filtering improve productionThe quality of product.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior artThe accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility modelSome embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of Welded material melting continuous casting installation for casting described in the utility model.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pairThe utility model is further detailed.
As shown in figure 1, the utility model provides a kind of Welded material melting continuous casting installation for casting, including it is at least oneSmelting furnace 1, flue 2, refining case, refining case are arranged in flue 2, and smelting furnace 1 flows through flue 2 by chute 4, and refining case is alsoConnected with warm stove 5, wherein,
Refining case 3 includes depassing unit 31, the filter 32 being sequentially connected with.
The quantity of smelting furnace is set to 2 in the present embodiment, using 2 natural gas fired incinerators, energy-conserving and environment-protective, once thrown per stove1~3 ton of material, carries out alloying after fusing, aluminum alloy melt is removed the gred after aluminium alloy completely melting, refined, is embodiedWhen, it is best mode within 0.30ml/100g by hydrogen content control in aluminium liquid.Compare using existing mature equipment comeSay, smelting furnace expense is low, while in order to improve yield, can be realized by increasing the quantity of smelting furnace, both reach raising yieldPurpose, reduce production cost again.The aluminum alloy melt for importing flue by chute (has high temperature, aluminum alloy melt is generally 670Degree Celsius to 690 degrees Celsius) temperature decayed, refine case to prevent from ensureing that aluminium liquid (i.e. aluminum alloy melt) enters by chuteWhen, it will not solidify, the utility model (is day in the present embodiment by setting up flue air inlet and gas outlet, gas on flueRight gas) burnt in flue and play the effect of flue, the temperature difference that aluminium liquid flows through flue is reduced, serves heat insulation effect.ToolBody, the waste heat in flue can be made to control more than 550 DEG C, in the present embodiment, refine case by controlling the flow of natural gasMiddle depassing unit is divided into one-level except gas-bearing formation and two level remove gas-bearing formation by ceramic filter plate 6, and between depassing unit and filterIt is provided with ceramic filter plate 6.Aluminium liquid removes gas-bearing formation and two level except gas-bearing formation realizes the two-stage smoke filtration of aluminium liquid by one-level, because of aluminium liquidTemperature is higher, therefore, the necessary high temperature resistant of device of particle filtering is carried out to aluminium liquid, passes through resistant to elevated temperatures ceramic mistake in the present embodimentFilter plate is carried out.Ceramic filter plate in depassing unit between ceramic filter plate and depassing unit and filter is realized to aluminium liquidSecondary filtration.When it is implemented, the filter bores set on ceramic filter plate realize larger particles in filtering aluminium liquid, specific implementationWhen, the big I of filter bores is set to different on two ceramic filter plates, and particle in aluminium liquid is realized by different size of filter boresIn multistage filtering (when it is implemented, optionally individual ceramic filter plate was set), improve filter effect, finally, utilize filteringDevice filters again to aluminium liquid, improves the effect of aluminium liquid filtering, will finally filter the aluminium liquid importing holding furnace completed, passes through guarantorThe thermal source of warm stove controls insulation in-furnace temperature, and at 670~690 DEG C, (temperature is optimal temperature parameter, when it is implemented, insulationIn-furnace temperature can be controlled as required).
When it is implemented, using the Welded material melting continuous casting installation for casting described in the present embodiment by the aluminium liquid of melting(temperature control is at 730~780 DEG C) by chute, into refining case, aluminium liquid in case is refined after 2 degasification, in aluminium liquidHydrogen content is controlled at (0.08~0.15ml/100g), and 20 μm of ＞ impurity can filter off 75% after 2 filter plates.ThisFilter is arranged to tubular type electromagnetic adsorption screen pipe in embodiment, 10 μm of ＞ impurity can filter off 75% after filtering, premise barPart is that the flow for meeting aluminium liquid will be controlled in 1~6 kg/minute.Because Welded material described in the utility model meltsIt is simple to refine each apparatus structure in continuous casting installation for casting, safeguards simply, therefore the utility model can pass through the input of low cost, improveThe quality of yield and product.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, forOne of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility modelMode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed asLimitation to the utility model claims protection domain.