CN108950227A - A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method - Google Patents

A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method Download PDF

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Publication number
CN108950227A
CN108950227A CN201811080268.5A CN201811080268A CN108950227A CN 108950227 A CN108950227 A CN 108950227A CN 201811080268 A CN201811080268 A CN 201811080268A CN 108950227 A CN108950227 A CN 108950227A
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CN
China
Prior art keywords
filter press
filter
filters pressing
cleaning solution
aluminium ash
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Pending
Application number
CN201811080268.5A
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Chinese (zh)
Inventor
杨万章
杨金星
陈本松
江俊
孙剑
朱华才
宋陈将
李俊平
李聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunnan Yunlv Ruixin Aluminum Co Ltd
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Yunnan Yunlv Ruixin Aluminum Co Ltd
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Priority to CN201811080268.5A priority Critical patent/CN108950227A/en
Publication of CN108950227A publication Critical patent/CN108950227A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04Working-up slag
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01CAMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00Ammonia; Compounds thereof
    • C01C1/24Sulfates of ammonium
    • C01C1/242Preparation from ammonia and sulfuric acid or sulfur trioxide
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00Obtaining aluminium
    • C22B21/0015Obtaining aluminium by wet processes
    • C22B21/0023Obtaining aluminium by wet processes from waste materials
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006Wet processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method, the system comprises pass through the pipeline absorption tower 1# (1) interconnected and the absorption tower 2# (2), the stirred under pressure leaching kettle (5) being connect by absorbing smoke pipe (3) with the absorption tower 2#, the feed hopper (4) being set to above stirred under pressure leaching kettle, charging conveyor belt (14) below feeding funnel bottom part discharge port, the feed pipe (15) of connection charging conveyor belt discharge end and stirred under pressure leaching kettle feed inlet, the 1# filter press (6) being connect by pipeline with stirred under pressure leaching kettle, the leachate reservoir (9) being set to below 1# filter press, it is set in turn in the subsequent atmospheric agitation leaching tanks (7) of 1# filter press and 2# filter press (8), the cleaning solution reservoir (11 being set to below 2# filter press ), the delivery pump (10) that is set to by cleaning solution reservoir.The present invention is by realizing the pressurized leaching of aluminium ash, atmospheric agitation leaching, filters pressing twice the Full automatic sealing harmless treatment of aluminium ash, saving labor, treatment effeciency height and clean and environmental protection.

Description

A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method
Technical field
The invention belongs to the device and method technical fields of produced aluminium ash in process aluminum electrolytic production.
Background technique
Aluminium ash is the product of the slag that generates in Aluminum Electrolysis Production after cooling processing, and main component is metal Al, three Al 2 O and silica.Metallic aluminium containing high level in aluminium ash, the method that general enterprises all use big kitchen ash are returned Aluminium therein is received, a large amount of flue dust can be generated during entire stir-fry ash.Some enterprises in order to obtain the aluminium alloy of high quality, In fusion process, various solvents, refining agent etc. can be added, after solid solvent and refining agent melting, all can with it is miscellaneous in melt body Matter is reacted, and dross and flue gas are generated.Especially if selecting additive improper, it is also possible to generate toxic and harmful gas.
Summary of the invention
The purpose of the present invention is to solve problems of the existing technology, and innoxious place can be carried out to aluminium ash by providing one kind The aluminium ash of reason and clean and environmental protection pressurization normal pressure innocuity disposal system and its processing method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of aluminium ash pressurization normal pressure innocuity disposal system, including absorbed by the pipeline absorption tower 1# interconnected and 2# Tower, the stirred under pressure leaching kettle being connect by absorption smoke pipe with the absorption tower 2#, the charging being set to above stirred under pressure leaching kettle Bucket, the charging conveyor belt below feeding funnel bottom part discharge port, connection charging conveyor belt discharge end and stirred under pressure leaching Out the feed pipe of kettle feed inlet, by being provided with the 1# filter press, setting that the pipeline of drawing liquid pump connect with stirred under pressure leaching kettle Leachate reservoir below 1# filter press is set in turn in the subsequent atmospheric agitation leaching tanks of 1# filter press and 2# filters pressing Machine, the cleaning solution reservoir being set to below 2# filter press, the delivery pump being set to by cleaning solution reservoir.
Stirred under pressure leaching kettle, 1# filter press and 2# filter press of the present invention are sequentially installed in 1# steel platform, described Feed hopper and charging conveyor belt are installed in 2# steel platform.
It is as follows using the method that present system carries out the pressurization normal pressure harmless treatment of aluminium ash: feed hopper is added in aluminium ash In, by charging conveyor belt and feed pipe be added in stirred under pressure leaching kettle, by aluminium ash in stirred under pressure leaching kettle with Water mixing and stirred under pressure, form aluminium mortar, aluminium mortar are then transported to 1# filter press filters pressing, filtrate enters leachate Reservoir, filter residue are sent into atmospheric agitation leaching tanks, mix and be sufficiently stirred with water in atmospheric agitation leaching tanks, form filter residue slurry Filter residue slurry is transported to 2# filter press and carries out secondary filters pressing by material, and secondary filtrate enters cleaning solution reservoir, and filter cake is used for anode The cleaning solution collected in the filtrate collected in leachate reservoir and cleaning solution reservoir is delivered to dense by the raw material of steel pawl coating The processing of contracting vapo(u)rization system;Aluminium ash reacts the 2# absorption that the ammonia generated enters bottom dress water with water in stirred under pressure leaching kettle Tower absorbs ammonia using water and generates ammonium hydroxide, contains dilute sulfuric acid in 1# absorb the bottom of the tower, the absorption tower 2# react incomplete ammonia into Enter the absorption tower 1#, reaction empties after generating ammonium sulfate.
Using processing method of the invention, the filter cake circulation of 1# filter press filters pressing is subjected to washing and filters pressing three times three times, Method is as follows: the filter cake of 1# filter press filters pressing being sent into atmospheric agitation leaching tanks and mixes and is sufficiently stirred with water, is once washed It washs, forms a filter residue slurry, a filter residue slurry is sent into the filters pressing of 2# filter press, a washing lotion of filters pressing enters cleaning solution liquid storage Slot, a filter wash cake are re-fed into atmospheric agitation leaching tanks and mix and be sufficiently stirred with water, carry out secondary washing, form secondary filter residue slurry Secondary filter residue slurry is sent into the filters pressing of 2# filter press by material, and two washing lotions of filters pressing enter cleaning solution reservoir, and two filter wash cakes are re-fed into Atmospheric agitation leaching tanks are mixed and are sufficiently stirred with water, are washed three times, and filter residue slurry three times is formed, will filter residue slurry three times It is sent into the filters pressing of 2# filter press, three washing lotions of filters pressing enter cleaning solution reservoir, and three filter wash cakes are used for the raw material of anode steel claw coating.
Cleaning solution reservoir of the present invention is set side by side three, stores a washing lotion, two washing lotions and three washing lotions respectively;By two Once washing of the washing lotion for the filter cake of next batch 1# filter press filters pressing, three washing lotions are used for secondary washing.
Aluminium ash can be automatically added in stirred under pressure leaching kettle by the present invention by feed hopper and charging conveyor belt, added It is mixed in pressure leaching kettle with water and stirred under pressure, formation aluminium mortar, aluminium mortar is transported to 1# filter press filters pressing, filters Liquid enters leachate reservoir, and filter residue is sent into atmospheric agitation leaching tanks, mixes in atmospheric agitation leaching tanks with water and sufficiently stir It mixes, forms filter residue slurry, filter residue slurry is transported to 2# filter press and carries out secondary filters pressing, secondary filtrate enters cleaning solution liquid storage Slot.Final filter cake can be used for the raw material of anode steel claw coating.In the filtrate and cleaning solution reservoir collected in leachate reservoir The cleaning solution collected can be concentrated evaporation process.The ammonia that aluminium ash mixes generation with water in stirred under pressure leaching kettle enters 1# suction Tower and the absorption tower 2# are received by from fully absorbing.The present invention by the pressurized leaching of aluminium ash, atmospheric agitation by leaching, pressing twice Filter, realizes the Full automatic sealing harmless treatment of aluminium ash, saves labor, treatment effeciency height and clean and environmental protection.
Detailed description of the invention
Fig. 1 is the schematic diagram of present system.
Specific embodiment
Aluminium ash pressurization normal pressure innocuity disposal system as shown in Figure 1, including the absorption tower 1# 1 interconnected and 2# absorb Tower 2, is set to above stirred under pressure leaching kettle the stirred under pressure leaching kettle 5 being connect by absorption smoke pipe 3 with the absorption tower 2# 2 Feed hopper 4, the charging conveyor belt 14 below feeding funnel bottom part discharge port, connection charging conveyor belt discharge end and pressurization The feed pipe 15 of leaching kettle feed inlet, the 1# filters pressing being connect by being provided with the pipeline of drawing liquid pump with stirred under pressure leaching kettle Machine 6, the leachate reservoir 9 being set to below 1# filter press are set in turn in the subsequent atmospheric agitation leaching tanks 7 of 1# filter press With 2# filter press 8, the cleaning solution reservoir 11 being set to below 2# filter press, the delivery pump being set to by cleaning solution reservoir 10.In order to save space and improve operational efficiency, the stirred under pressure leaching kettle 5,1# filter press 6 and 2# filter press 8 are sequentially pacified Loaded in 1# steel platform 12, the feed hopper 4 and charging conveyor belt 14 are installed in 2# steel platform 13.By leachate reservoir 9 are set to below 1# filter press, and cleaning solution reservoir 11 is set to below 2# filter press.
The processing method of present system is as follows: aluminium ash being added in feed hopper 4, charging conveyor belt 14 and feeding are passed through Pipe 15 is added in stirred under pressure leaching kettle 5, and aluminium ash is mixed in stirred under pressure leaching kettle with water to simultaneously stirred under pressure, forms aluminium Then aluminium mortar is transported to 6 filters pressing of 1# filter press by mortar, filtrate enters leachate reservoir 9, and filter residue is sent into normal pressure and is stirred Leaching tanks 7 are mixed, mixes and is sufficiently stirred with water in atmospheric agitation leaching tanks, filter residue slurry is formed, filter residue slurry is transported to 2# filter press 8 carries out secondary filters pressing, and secondary filtrate enters cleaning solution reservoir 11, and filter cake is used for the raw material of anode steel claw coating, The cleaning solution collected in the filtrate collected in leachate reservoir 9 and cleaning solution reservoir is delivered at concentration and evaporation system Reason;Aluminium ash reacts the absorption tower 2# 2 that the ammonia generated enters bottom dress water with water in stirred under pressure leaching kettle, is absorbed using water Ammonia generates ammonium hydroxide, contains dilute sulfuric acid in 1 bottom of the absorption tower 1#, and the absorption tower 2# reacts incomplete ammonia and enters the absorption tower 1#, Reaction empties after generating ammonium sulfate.After being absorbed by 2 grades, ammonia absorptivity is up to 99.9% or more.
In order to thoroughly realize harmless treatment, the filter cake circulation of 1# filter press filters pressing is carried out washing and three three times by the present invention Secondary filters pressing, the method is as follows: the filter cake of 1# filter press filters pressing is sent into atmospheric agitation leaching tanks 7 and mixes and is sufficiently stirred with water, into Row once washing forms a filter residue slurry, a filter residue slurry is sent into the filters pressing of 2# filter press, a washing lotion of filters pressing, which enters, washes Liquid reservoir 11 is washed, a filter wash cake is re-fed into atmospheric agitation leaching tanks 7 and mixes and be sufficiently stirred with water, carries out secondary washing, shape At secondary filter residue slurry, secondary filter residue slurry is sent into the filters pressing of 2# filter press, two washing lotions of filters pressing enter cleaning solution reservoir 11, Two filter wash cakes are re-fed into atmospheric agitation leaching tanks 7 and mix and be sufficiently stirred with water, are washed three times, form filter residue three times and starch Material will be sent into the filters pressing of 2# filter press by filter residue slurry three times, and three washing lotions of filters pressing enter cleaning solution reservoir 11, and three filter wash cakes are used for The raw material of anode steel claw coating.The cleaning solution reservoir 11 is set side by side three, stores a washing lotion respectively, two washing lotions and three are washed Liquid;Two washing lotions are used for the once washing of the filter cake of next batch 1# filter press filters pressing, three washing lotions to be used for secondary washing, to realize It is water-saving and cleaning solution is made to reach a certain concentration, it is handled convenient for subsequent concentration and evaporation.

Claims (5)

  1. The normal pressure innocuity disposal system 1. a kind of aluminium ash pressurizes, which is characterized in that including being absorbed by pipeline 1# interconnected Tower (1) and the absorption tower 2# (2), by absorbing stirred under pressure leaching kettle (5) that smoke pipe (3) connect with the absorption tower 2# (2), being set to Feed hopper (4) above stirred under pressure leaching kettle, the charging conveyor belt (14) below feeding funnel bottom part discharge port, connection The feed pipe (15) of charging conveyor belt discharge end and stirred under pressure leaching kettle feed inlet, by the pipeline that is provided with drawing liquid pump with The 1# filter press (6) of stirred under pressure leaching kettle connection, is set gradually the leachate reservoir (9) being set to below 1# filter press In the subsequent atmospheric agitation leaching tanks (7) of 1# filter press and 2# filter press (8), the cleaning solution liquid storage being set to below 2# filter press Slot (11), the delivery pump (10) being set to by cleaning solution reservoir.
  2. The normal pressure innocuity disposal system 2. a kind of aluminium ash according to claim 1 pressurizes, which is characterized in that the pressurization is stirred Leaching kettle (5), 1# filter press (6) and 2# filter press (8) is mixed sequentially to be installed on 1# steel platform (12), the feed hopper (4) and Charging conveyor belt (14) is installed on 2# steel platform (13).
  3. 3. a kind of processing method of aluminium ash pressurization normal pressure innocuity disposal system as claimed in claim 1 or 2, feature exist In aluminium ash pressurization normal pressure method for innocent treatment is as follows: aluminium ash being added in feed hopper (4), passes through and feeds conveyor belt (14) It is added in stirred under pressure leaching kettle (5) with feed pipe (15), aluminium ash is mixed and pressurizeed with water in stirred under pressure leaching kettle Stirring forms aluminium mortar, aluminium mortar is then transported to 1# filter press (6) filters pressing, filtrate enters leachate reservoir (9), filter residue is sent into atmospheric agitation leaching tanks (7), mixes and is sufficiently stirred with water in atmospheric agitation leaching tanks, forms filter residue slurry Filter residue slurry is transported to 2# filter press (8) and carries out secondary filters pressing by material, and secondary filtrate enters cleaning solution reservoir (11), filter cake For the raw material of anode steel claw coating, will collect in the filtrate collected in leachate reservoir (9) and cleaning solution reservoir (11) Cleaning solution be delivered to concentration and evaporation system processing;The ammonia that aluminium ash reacts generation with water in stirred under pressure leaching kettle enters bottom Portion fills the absorption tower 2# (2) of water, absorbs ammonia using water and generates ammonium hydroxide, contains dilute sulfuric acid in the absorption tower 1# (1) bottom, 2# absorbs Tower reacts incomplete ammonia and enters the absorption tower 1#, and reaction empties after generating ammonium sulfate.
  4. 4. a kind of processing method of aluminium ash pressurization normal pressure innocuity disposal system as claimed in claim 3, which is characterized in that will The filter cake circulation of 1# filter press filters pressing carries out washing and filters pressing three times three times, the method is as follows: send the filter cake of 1# filter press filters pressing Enter atmospheric agitation leaching tanks (7) to mix and be sufficiently stirred with water, carries out once washing, form a filter residue slurry, will once filter Slurry material is sent into the filters pressing of 2# filter press, and a washing lotion of filters pressing enters cleaning solution reservoir (11), and a filter wash cake is re-fed into normal pressure and stirs It mixes leaching tanks (7) to mix and be sufficiently stirred with water, carries out secondary washing, form secondary filter residue slurry, secondary filter residue slurry is sent Enter 2# filter press filters pressing, two washing lotions of filters pressing enter cleaning solution reservoir (11), and two filter wash cakes are re-fed into atmospheric agitation leaching tanks (7) it mixes and is sufficiently stirred with water, washed three times, form filter residue slurry three times, 2# filters pressing will be sent by filter residue slurry three times Machine filters pressing, three washing lotions of filters pressing enter cleaning solution reservoir (11), and three filter wash cakes are used for the raw material of anode steel claw coating.
  5. 5. a kind of processing method of aluminium ash pressurization normal pressure innocuity disposal system as claimed in claim 4, which is characterized in that institute It states cleaning solution reservoir (11) and is set side by side three, store a washing lotion, two washing lotions and three washing lotions respectively;Two washing lotions are used for next The once washing of the filter cake of batch 1# filter press filters pressing, three washing lotions are used for secondary washing.
CN201811080268.5A 2018-09-17 2018-09-17 A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method Pending CN108950227A (en)

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CN201811080268.5A CN108950227A (en) 2018-09-17 2018-09-17 A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method

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CN201811080268.5A CN108950227A (en) 2018-09-17 2018-09-17 A kind of aluminium ash pressurization normal pressure innocuity disposal system and processing method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117205732A (en) * 2023-09-25 2023-12-12 河南亿水源净水材料科技有限公司 Aluminum ash processing raw material storage system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524408A (en) * 1975-07-01 1977-01-13 Nippon Jido Kiko Kk Pretreating method to extract a1 from a1 slag
JPH06171993A (en) * 1992-12-02 1994-06-21 Nippon Steel Corp Method for modifying chromium oxide-containing slag
CN105274346A (en) * 2015-09-28 2016-01-27 昆明冶金研究院 Aluminum ash recycling process
CN108220603A (en) * 2017-11-09 2018-06-29 昆明冶金研究院 A kind of aluminium ash recovery process of normal pressure alkali leaching-sulfuric acid curing-hot acid-leaching
CN108275708A (en) * 2018-01-23 2018-07-13 环境保护部华南环境科学研究所 A kind of Quadratic aluminum dust resource utilization method
CN208803131U (en) * 2018-09-17 2019-04-30 云南云铝润鑫铝业有限公司 A kind of aluminium ash pressurization normal pressure innocuity disposal system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524408A (en) * 1975-07-01 1977-01-13 Nippon Jido Kiko Kk Pretreating method to extract a1 from a1 slag
JPH06171993A (en) * 1992-12-02 1994-06-21 Nippon Steel Corp Method for modifying chromium oxide-containing slag
CN105274346A (en) * 2015-09-28 2016-01-27 昆明冶金研究院 Aluminum ash recycling process
CN108220603A (en) * 2017-11-09 2018-06-29 昆明冶金研究院 A kind of aluminium ash recovery process of normal pressure alkali leaching-sulfuric acid curing-hot acid-leaching
CN108275708A (en) * 2018-01-23 2018-07-13 环境保护部华南环境科学研究所 A kind of Quadratic aluminum dust resource utilization method
CN208803131U (en) * 2018-09-17 2019-04-30 云南云铝润鑫铝业有限公司 A kind of aluminium ash pressurization normal pressure innocuity disposal system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117205732A (en) * 2023-09-25 2023-12-12 河南亿水源净水材料科技有限公司 Aluminum ash processing raw material storage system and method
CN117205732B (en) * 2023-09-25 2024-04-05 河南亿水源净水材料科技有限公司 Aluminum ash processing raw material storage system and method

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