CN103849894B - Aluminium ash recycling treatment system and processing method - Google Patents
Aluminium ash recycling treatment system and processing method Download PDFInfo
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- CN103849894B CN103849894B CN201410089405.7A CN201410089405A CN103849894B CN 103849894 B CN103849894 B CN 103849894B CN 201410089405 A CN201410089405 A CN 201410089405A CN 103849894 B CN103849894 B CN 103849894B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 222
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 220
- 239000004411 aluminium Substances 0.000 title claims abstract description 217
- 238000004064 recycling Methods 0.000 title claims abstract description 29
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000011230 binding agent Substances 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 210000000078 claw Anatomy 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 238000004513 sizing Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 26
- 239000000428 dust Substances 0.000 claims description 25
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 8
- 229940063655 aluminum stearate Drugs 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 6
- 238000004534 enameling Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 235000010210 aluminium Nutrition 0.000 description 168
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 150000001398 aluminium Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000004673 fluoride salts Chemical class 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000000274 aluminium melt Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of aluminium ash recycling treatment system and processing method, be intended to solve in prior art that the aluminium ash rate of recovery is low, complex process, the easy technical problem of contaminated environment. This system comprises aluminium ash separative element, batching unit, forming unit and cures unit. The method comprises the following steps: hot aluminium ash to join in hot aluminium ash separator, isolates metallic aluminium and low aluminium aluminium ash; The low aluminium aluminium ash of gained is compared to mixing and stirring with binding agent by the quality of 10:1～10:2; This mixed material is pressed into anode steel claw protection ring blank the demoulding; After the defeated sintering sizing of anode steel claw protection ring blank of gained, obtain finished product anode steel claw protection ring. The present invention can realize the integrated treatment of aluminium ash, simplifies the processing procedure of aluminium ash, easy and simple to handle, energy-conserving and environment-protective; Can significantly reduce waste discharge, fully realize resource regeneration, recycle, solve a harmless treatment difficult problem for aluminium ash.
Description
Technical field
The present invention relates to the solid waste processing technology field in Aluminum Electrolysis Production process, be specifically related to a kind of aluminium ash recycling treatment system and processing method.
Background technology
Electrolytic aluminium belongs to important light non-ferrous metal industry, and aluminium is as important basic industries raw material, its peopleEconomicalIn occupy very important status. Aluminium obtains by Hall-Ai Lu ice crystal-aluminium oxide fused salt electrolysis method, using ice crystal as main fluoride salt asFlux, aluminium oxide forms heterogeneous electrolyte for melting matterSystem, using carbon body as anode, aluminium liquid, as negative electrode, passes into after powerful direct current, at 950 DEG C～970 DEG C, carries out electrochemical reaction on the two poles of the earth in electrolytic cell. Aluminium liquid can generate a kind of scum silica frost in casting furnace melting, be mainly derived from molten field trash, the additive that floats on aluminium melt surface in fusion process and the material that carries out physics, chemical reaction generation with additive, be loose grey scoriform, be called as aluminium ash. The aluminium ash producing in this process contains more than 50% metallic aluminium conventionally, is called as high alumina aluminium ash; In high alumina aluminium ash, be not suitable for reclaim part and removal process in the aluminium slag that produces be called low aluminium aluminium ash, in low aluminium aluminium ash, the content of metallic aluminium accounts for 12%～20%. Although aluminium ash is a kind of scum silica frost, and fusion process is had to important effect, be mainly to adsorb from the impurity such as aluminium oxide, fluoride salt in electrolytic aluminium liquid, aluminium ash can also play protection aluminum melt simultaneously, prevents the effects such as aluminum oxidation. But blocked up aluminium ash can hinder hot conduction, is unfavorable for melting, so aluminium ash will periodically claw from smelting furnace when melting.
Every production and one ton of aluminium of casting, approximately produce the aluminium ash of 20～30kg, and within 2013, China's primary aluminum output reaches 2,000 ten thousand tons, accounts for 45% of global total output, produces approximately 200,000 tons of aluminium ash discharge capacitys. Metallic aluminium is extracted from aluminium ash, can realize the resource of aluminium ash and recycle, reduce environmental pollution. The conventional method of extracting metallic aluminium from aluminium ash mainly contains milling process, revolution oven process, cold ash pulverizing partition method, the artificial ash etc. of frying at present, these methods can reclaim a part of metallic aluminium in aluminium ash, but the rate of recovery is lower, metallic aluminium waste is large, and its remaining aluminium ash also will be processed through additive method, whole processing procedure time length, complex process, needing in a large number manually, also has certain damaging influence to environment. Therefore, studying a kind of aluminium ash recycling treatment process efficient, energy-saving and environmental protection is that the utmost point is necessary.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of recovery utilization rate grey recycling treatment system of aluminium high, easy and simple to handle and energy-conserving and environment-protective and processing method.
For solving the problems of the technologies described above, aluminium ash recycling treatment system of the present invention comprises aluminium ash separative element, batching unit, forming unit and cures unit, described batching unit comprises low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker, on described low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker, be provided with weighing device and baiting valve, the discharging opening of described low aluminium aluminium ash feed bin and binding agent feed bin respectively with the corresponding connection of charging aperture of described stirring bunker, in described stirring bunker, be provided with agitating device;
Described aluminium ash separative element comprises hot aluminium ash separator and feed mechanism, and the ash discharging hole of described hot aluminium ash separator is communicated with described low aluminium aluminium ash feed bin by described feed mechanism;
Described forming unit comprises feed mechanism, compacting mould emptier and conveying mechanism; the corresponding connection of charging aperture of the connection corresponding to the discharging opening of described stirring bunker of the feed end of described feed mechanism, discharge end and described compacting mould emptier, described compacting mould emptier cures with described that unit is corresponding to be connected by described conveying mechanism.
Preferably; this system also comprises dust removing units; described dust removing units comprises deduster, air-introduced machine and blowing spiral; above described hot aluminium ash separator, low aluminium aluminium ash feed bin, binding agent feed bin, stirring bunker and compacting mould emptier, be respectively equipped with dust shield; the dust collection pipeline of described deduster is connected with described dust shield respectively; described air-introduced machine is arranged at the pure qi (oxygen) exit of described deduster, and described blowing spiral is arranged at the dust emission mouth of described deduster.
Preferably, described deduster is the long bag dust collector of action of low-voltage pulse.
Preferably, described in, curing unit is enameling furnace.
Preferably, described aluminium ash recycling treatment system also comprises PLC controller, the input of described PLC controller is connected with the weighing device on stirring bunker with described low aluminium aluminium ash feed bin, binding agent feed bin respectively, and its output is connected with the baiting valve of described low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker respectively.
Adopt the beneficial effect of above-mentioned aluminium ash recycling treatment system to be, can realize the integrated treatment of aluminium ash, simplify the processing procedure of aluminium ash, easy and simple to handle, energy-conserving and environment-protective; Production process is clean, does not produce the secondary pollutions such as waste water,waste gas and industrial residue, has solved a harmless treatment difficult problem for aluminium ash; When the anode steel claw protection ring of being manufactured by low aluminium aluminium ash returns to electrolytic cell use, be not only conducive to extend the replacement cycle of anode steel claw, can reduce the aluminium oxide consumption of electrolytic cell simultaneously; Can realize recycling of resource, allow low aluminium aluminium ash " turn waste into wealth ", further reduce the production cost of electrolytic aluminum industry.
Aluminium ash recycling processing method of the present invention, comprises the following steps:
(1) the hot aluminium ash cleaning out from casting furnace is joined in the hot aluminium ash separator in described aluminium ash recycling treatment system, obtain isolated metallic aluminium and low aluminium aluminium ash, the low aluminium aluminium ash of gained is delivered to described low aluminium aluminium ash feed bin;
(2) open the baiting valve of described low aluminium aluminium ash feed bin and described binding agent feed bin, low aluminium aluminium ash and binding agent are joined in described stirring bunker to mixing and stirring by the mass ratio of 10:1～10:2;
(3) start described feed mechanism, the mixed material of step (2) gained is delivered in the compacting mould emptier of described forming unit, be pressed into anode steel claw protection ring blank the demoulding;
(4) the anode steel claw protection ring blank of step (3) gained is delivered to and cures unit sintering sizing, obtain finished product anode steel claw protection ring, the temperature-rise period that wherein cures unit is as follows: the heating rate of 20 DEG C～100 DEG C is 3.2 DEG C/h; The heating rate of 100 DEG C～200 DEG C is 4 DEG C/h; The heating rate of 200 DEG C～350 DEG C is 7.5 DEG C/h; The heating rate of 350 DEG C～550 DEG C is 13.3 DEG C/h; The heating rate of 550 DEG C～850 DEG C is 20 DEG C/h.
The described binding agent of step (2) is made up of aluminum stearate, high manganese cement and quick lime, and wherein the shared mass percent of each component is: aluminum stearate 35%～45%, high manganese cement 35%～45%, quick lime 18%～25%.
Adopt the beneficial effect of said method to be, most of metallic aluminium in aluminium ash can be extracted, fully realize resource regeneration, recycle, bring reality, considerable economic benefit to enterprise; Make anode steel claw protection ring with remaining low aluminium aluminium ash, can reach the object that reduces solid waste discharge, turns waste into wealth; When the anode steel claw protection ring of being manufactured by low aluminium aluminium ash returns to electrolytic cell use, be not only conducive to extend the replacement cycle of anode steel claw, can reduce the aluminium oxide consumption of electrolytic cell simultaneously, further reduce production costs; Whole aluminium ash processing procedure is carried out cleaner production, and energy-conserving and environment-protective, can significantly reduce waste discharge, reach " zero-emission " of aluminium ash, avoid contaminated environment.
Brief description of the drawings
Fig. 1 is the schematic diagram of aluminium ash recycling treatment system of the present invention.
Wherein, 1 is low aluminium aluminium ash feed bin; 2 is binding agent feed bin; 3 is stirring bunker; 4 is hot aluminium ash separator; 5 is feed mechanism; 6 is compacting mould emptier; 7 is conveying mechanism; 8 is deduster; 9 is air-introduced machine; 10 is blowing spiral; 11 is enameling furnace.
Detailed description of the invention
The following examples are just used for describing in detail the present invention, and limit the scope of the invention never in any form.
Embodiment 1: a kind of aluminium ash recycling treatment system, as shown in Figure 1, comprise aluminium ash separative element, batching unit, forming unit and cure unit, described batching unit comprises low aluminium aluminium ash feed bin 1, binding agent feed bin 2 and stirring bunker 3, on described low aluminium aluminium ash feed bin 1, binding agent feed bin 2 and stirring bunker 3, be provided with weighing device and baiting valve, the discharging opening of described low aluminium aluminium ash feed bin 1 and binding agent feed bin 2 respectively with the corresponding connection of charging aperture of described stirring bunker 3, in described stirring bunker 3, be provided with agitating device; Described aluminium ash separative element comprises hot aluminium ash separator 4 and feed mechanism, and the ash discharging hole of described hot aluminium ash separator 4 is connected with described low aluminium aluminium ash feed bin 1 by described feed mechanism; Described forming unit comprises feed mechanism 5, compacting mould emptier 6 and conveying mechanism 7; the corresponding connection of charging aperture of the corresponding connection of discharging opening of the feed end of described feed mechanism 5 and described stirring bunker 3, discharge end and described compacting mould emptier 6, described compacting mould emptier 6 cures with described that unit is corresponding to be connected by described conveying mechanism 7.
This system also comprises dust removing units; described dust removing units comprises deduster 8, air-introduced machine 9 and blowing spiral 10; above described hot aluminium ash separator 4, low aluminium aluminium ash feed bin 1, binding agent feed bin 2, stirring bunker 3 and compacting mould emptier 6, be respectively equipped with dust shield; the dust collection pipeline of described deduster 8 is connected with described dust shield respectively; described air-introduced machine 9 is arranged at the pure qi (oxygen) exit of described deduster 8, and described blowing spiral 10 is arranged at the dust emission mouth of described deduster 8. Described deduster 8 is the long bag dust collector of action of low-voltage pulse, described in to cure unit be enameling furnace 11.
Described aluminium ash recycling treatment system also comprises PLC controller, and the input of described PLC controller is connected with the weighing device on stirring bunker 3 with described low aluminium aluminium ash feed bin 1, binding agent feed bin 2 respectively, and this weighing device is electronic measurement weighing apparatus; The output of described PLC controller is connected with the baiting valve of stirring bunker 3 with described low aluminium aluminium ash feed bin 1, binding agent feed bin 2 respectively. Adopt this PLC controller can realize automatic mixing, automatic discharging and the stirring of low aluminium aluminium ash and binding agent, be conducive to simplify the operation course, reduce labour intensity.
The working method of aluminium ash recycling treatment system of the present invention is as follows: first the hot aluminium ash cleaning out from casting furnace is sent in hot aluminium ash separator 4, in hot aluminium ash separator, there is height-adjustable agitating device, sink gradually to container bottom formation molten bath through stirring the metallic aluminium being mingled with, low aluminium aluminium ash is stayed top, molten bath, under the effect of stirring, the low aluminium aluminium ash from container ash output opening of portion is discharged, and aluminium liquid is discharged direct pouring from the tapping hole of container bottom and become aluminium ingot. The low aluminium aluminium ash of discharging enters low aluminium aluminium ash feed bin 1 by feed mechanism; low aluminium aluminium ash and binding agent blowing by a certain percentage; enter stirring bunker 3 and carry out mix and blend; mixed material is delivered in compacting mould emptier 6 by feed mechanism 5; by the specification requirement of corresponding anode steel claw protection ring, this material is suppressed; and automatic demoulding; obtain compressing anode steel claw protection ring blank; this blank is delivered in the enameling furnace 11 that cures unit and dries via conveying mechanism 7, finally obtains finished product anode steel claw protection ring.
In system work process, open deduster, by being arranged on the dust shield of hot aluminium ash separator, low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker top in described aluminium ash recycling treatment system, can timely the dust producing in system work process be collected in deduster, deduster emits purified gas, the dust of collecting is recovered utilization, avoid producing waste gas and dust pollution, also can keep clean production environment.
Embodiment 2: a kind of aluminium ash recycling processing method that adopts this aluminium ash recycling treatment system, comprises the following steps:
(1) the hot aluminium ash cleaning out from casting furnace is joined in described hot aluminium ash separator, obtain isolated metallic aluminium and low aluminium aluminium ash, the low aluminium aluminium ash of gained is delivered to described low aluminium aluminium ash feed bin;
(2) open the baiting valve of described low aluminium aluminium ash feed bin and described binding agent feed bin, low aluminium aluminium ash and binding agent are joined in described stirring bunker to mixing and stirring by the mass ratio of 10:1; Described binding agent is made up of aluminum stearate, high manganese cement and quick lime, and wherein the shared mass percent of each component is: aluminum stearate 40%, high manganese cement 40%, quick lime 20%;
(3) start described feed mechanism, the mixed material of step (2) gained is delivered in the compacting mould emptier of described forming unit, be pressed into anode steel claw protection ring blank the demoulding;
(4) the anode steel claw protection ring blank of step (3) gained is delivered to and cures unit sintering sizing, obtain finished product anode steel claw protection ring, the temperature-rise period that wherein cures unit is as shown in table 1 below.
Embodiment 3: be with the difference of embodiment 2: in step (2), low aluminium aluminium ash mixes by the mass ratio of 10:2 with binding agent; The shared mass percent of the each component of binding agent is: aluminum stearate 32%, high manganese cement 45%, quick lime 23%.
Embodiment 4: be with the difference of embodiment 2: in step (2), low aluminium aluminium ash mixes by the mass ratio of 10:1.5 with binding agent; The shared mass percent of the each component of binding agent is: aluminum stearate 38%, high manganese cement 37%, quick lime 25%.
Adopt aluminium ash recycling processing method of the present invention, the metallic aluminium up to 80% ± 10% all can be extracted, and these metallic aluminiums can directly melt down use. Compare additive method, greatly improved the recovery rate of metallic aluminium. Make anode protection ring with low aluminium aluminium ash, antianode steel pawl is protected, and both can reach and slow down the corrosion of steel pawl, can reach again the object that reduces solid waste discharge, turns waste into wealth; After the anode protection ring that Bian makes of this aluminium ash; need not pick up fragment, anode protection ring can enter electrolysis flow process with mulch after fragmentation, and its protection effect is better than carbon protective ring; economy aspect is also better than carbon protective ring, is the desirable substitute products of carbon protective ring.
In above embodiment, related instrument and equipment if no special instructions, is routine instrument device; The related raw material of industry if no special instructions, is the commercially available conventional raw material of industry.
In conjunction with the accompanying drawings and embodiments the present invention is described in detail above, but, person of ordinary skill in the field can understand, do not departing under the prerequisite of aim of the present invention, can also change each design parameter in above-described embodiment, form multiple specific embodiments, be common excursion of the present invention, describe in detail no longer one by one at this.
Claims (6)
1. an aluminium ash recycling treatment system, is characterized in that, comprise aluminium ash separative element, batching unit, forming unit and cure unit,
Described batching unit comprises low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker, on described low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker, be provided with weighing device and baiting valve, the discharging opening of described low aluminium aluminium ash feed bin and binding agent feed bin respectively with the corresponding connection of charging aperture of described stirring bunker, in described stirring bunker, be provided with agitating device;
Described aluminium ash separative element comprises hot aluminium ash separator and feed mechanism, and the ash discharging hole of described hot aluminium ash separator is communicated with described low aluminium aluminium ash feed bin by described feed mechanism;
Described forming unit comprises feed mechanism, compacting mould emptier and conveying mechanism; the corresponding connection of charging aperture of the connection corresponding to the discharging opening of described stirring bunker of the feed end of described feed mechanism, discharge end and described compacting mould emptier, described compacting mould emptier cures with described that unit is corresponding to be connected by described conveying mechanism.
2. aluminium ash recycling treatment system according to claim 1; it is characterized in that; this system also comprises dust removing units; described dust removing units comprises deduster, air-introduced machine and blowing spiral; above described hot aluminium ash separator, low aluminium aluminium ash feed bin, binding agent feed bin, stirring bunker and compacting mould emptier, be respectively equipped with dust shield; the dust collection pipeline of described deduster is connected with described dust shield respectively; described air-introduced machine is arranged at the pure qi (oxygen) exit of described deduster, and described blowing spiral is arranged at the dust emission mouth of described deduster.
3. aluminium ash recycling treatment system according to claim 2, is characterized in that, described deduster is the long bag dust collector of action of low-voltage pulse.
4. aluminium according to claim 1 ash recycling treatment system, is characterized in that, described in to cure unit be enameling furnace.
5. aluminium ash recycling treatment system according to claim 1, it is characterized in that, described aluminium ash recycling treatment system also comprises PLC controller, the input of described PLC controller is connected with the weighing device on stirring bunker with described low aluminium aluminium ash feed bin, binding agent feed bin respectively, and its output is connected with the baiting valve of described low aluminium aluminium ash feed bin, binding agent feed bin and stirring bunker respectively.
6. right to use requires an aluminium ash recycling processing method for the aluminium ash recycling treatment system described in 1, it is characterized in that, comprises the following steps:
(1) the hot aluminium ash cleaning out from casting furnace is joined in the hot aluminium ash separator in aluminium ash recycling treatment system claimed in claim 1, obtain isolated metallic aluminium and low aluminium aluminium ash, the low aluminium aluminium ash of gained is delivered to described low aluminium aluminium ash feed bin;
(2) open the baiting valve of described low aluminium aluminium ash feed bin and described binding agent feed bin, low aluminium aluminium ash and binding agent are joined in described stirring bunker to mixing and stirring by the mass ratio of 10:1～10:2; Described binding agent is made up of aluminum stearate, high manganese cement and quick lime, and wherein the shared mass percent of each component is: aluminum stearate 35%～45%, high manganese cement 35%～45%, quick lime 18%～25%;
(3) start described feed mechanism, the mixed material of step (2) gained is delivered in the compacting mould emptier of described forming unit, be pressed into anode steel claw protection ring blank the demoulding;
(4) the anode steel claw protection ring blank of step (3) gained is delivered to and cures unit sintering sizing, obtain finished product anode steel claw protection ring, the temperature-rise period that wherein cures unit is as follows: the heating rate of 20 DEG C～100 DEG C is 3.2 DEG C/h; The heating rate of 100 DEG C～200 DEG C is 4 DEG C/h; The heating rate of 200 DEG C～350 DEG C is 7.5 DEG C/h; The heating rate of 350 DEG C～550 DEG C is 13.3 DEG C/h; The heating rate of 550 DEG C～850 DEG C is 20 DEG C/h.
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| CN111943652B (en) * | 2020-08-22 | 2023-03-24 | 郑州经纬科技实业有限公司 | Preparation method of aluminum-magnesium light refractory material |
| CN111960851B (en) * | 2020-08-31 | 2023-03-17 | 郑州经纬科技实业有限公司 | Method for preparing cordierite ceramic filter plate based on aluminum ash raw material |
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| CN103290430A (en) * | 2013-05-16 | 2013-09-11 | 中国矿业大学 | Preparation method of anode steel claw protection ring for electrolytic aluminum |
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