CN108500740B - A kind of old saggar Retreatment method - Google Patents

A kind of old saggar Retreatment method Download PDF

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Publication number
CN108500740B
CN108500740B CN201810064068.4A CN201810064068A CN108500740B CN 108500740 B CN108500740 B CN 108500740B CN 201810064068 A CN201810064068 A CN 201810064068A CN 108500740 B CN108500740 B CN 108500740B
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China
Prior art keywords
saggar
old
inner bottom
old saggar
polishing
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CN201810064068.4A
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CN108500740A (en
Inventor
许开华
潘骅
李文强
丁卫丰
邱新民
徐世国
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Greenmei (wuxi) Energy Materials Co Ltd
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Greenmei (wuxi) Energy Materials Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B05D3/0272—After-treatment with ovens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines

Abstract

The present invention provides a kind of old saggar Retreatment method, comprising: S1 uses the old saggar inner bottom surface of saggar grinding apparatus polishing；S2, old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing.Old saggar Retreatment method provided by the invention, extends the service life of saggar, to reduce the manufacturing cost of anode material of lithium battery.

Description

A kind of old saggar Retreatment method
Technical field
The present invention relates to battery production equipment utilization technology fields, reprocess more particularly, to a kind of old saggar Method.
Background technique
With the popularization of national new-energy automobile, in terms of application explosive growth is presented.Positive material Material has vital influence to performances such as the energy density of lithium ion battery and cycle lives, is most important in lithium ion battery One of component part.The anode material for lithium-ion batteries of current industrialization mainly includes cobalt acid lithium, LiFePO4, mangaic acid Lithium, nickle cobalt lithium manganate etc..
The raw materials such as positive electrode production technology predominantly reconciliation powder are filled to saggar and pass through roller kilns high temperature sintering, charge After saggar is come out of the stove, positive electrode is after the processes such as crushing, product final packaging.Wherein, the saggar come out of the stove continues filling and reconciles Powder, then be sintered into roller kilns, and so on.
Since saggar is the carrier of positive electrode reaction, by few tens of cycles high temperature sintering, saggar will appear arrisdefect, rise Phenomena such as skin, cracking and deformation, so that saggar is scrapped.And in the production process of positive electrode, the quantity consumed of saggar Huge, higher cost accounts for about the 10~20% of the processing cost of positive electrode.In the saggar scrapped, go out for one layer inside saggar The phenomenon that existing peeling, is most commonly seen, accounts for scrapping the overwhelming majority in saggar.
Summary of the invention
In order at least partly overcome the above-mentioned problems in the prior art, the present invention provides a kind of old saggar reprocessing Method.
The present invention provides a kind of old saggar Retreatment method, comprising:
S1 uses the old saggar inner bottom surface of saggar grinding apparatus polishing；
S2, old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing.
Wherein, the saggar grinding apparatus includes CNC milling machine, one cyclonic granule ash separator, filter cartridge dust remover and cover Shell；Wherein,
The fixture of the CNC milling machine is for clamping the old saggar so that the old saggar holding is horizontal；The number The milling cutter for controlling milling machine is used for the old saggar inner bottom surface of polishing from vertical direction；The one cyclonic granule ash separator is used for institute The particle for stating old saggar inner bottom surface polishing siphons away；The housing is for preventing particles splatter；The filter cartridge dust remover is for filtering Particle.
Wherein, polished the old saggar inner bottom surface by the milling cutter of the CNC milling machine, polish off with a thickness of 0.5~ 5mm。
Wherein, S2 specifically: S21 is that perhaps ethyl alcohol solute is nickle cobalt lithium manganate or cobalt acid lithium to water using solvent, Nickle cobalt lithium manganate or cobalt acid lithium are dissolved in water or ethyl alcohol evenly, to configure nickle cobalt lithium manganate solution or cobalt acid lithium solution； S22 cleans out the old saggar inner bottom surface after polishing；S23, the old saggar inner bottom surface after cleaning out are uniform using hairbrush Apply nickle cobalt lithium manganate solution or cobalt acid lithium solution.
Wherein, the concentration of the nickle cobalt lithium manganate solution or cobalt acid lithium solution that configure in the S21 is 50~300g/L.
Wherein, further includes: S3 carries out drying operation to the old saggar after coating.
Wherein, S3 specifically: in 40~900 DEG C of kiln or baking oven, drying behaviour is carried out to the old saggar after coating Make, the time of drying operation is 0.5~30h.
To sum up, a kind of old saggar Retreatment method provided by the invention uses bottom in the old saggar of saggar grinding apparatus polishing Face；Old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing.Old saggar provided by the invention Retreatment method, extends the service life of saggar, to reduce the manufacturing cost of anode material of lithium battery.
Detailed description of the invention
Fig. 1 is the flow diagram according to a kind of old saggar Retreatment method of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing, to the embodiment of the present invention In technical solution be explicitly described, it is clear that described embodiments are some of the embodiments of the present invention, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of old saggar Retreatment method, comprising:
Use the old saggar inner bottom surface of saggar grinding apparatus polishing.
Wherein, the saggar grinding apparatus includes CNC milling machine, one cyclonic granule ash separator, filter cartridge dust remover and cover Shell；Wherein,
The fixture of the CNC milling machine is for clamping the old saggar so that the old saggar holding is horizontal；The number The milling cutter for controlling milling machine is used for the old saggar inner bottom surface of polishing from vertical direction；The one cyclonic granule ash separator is used for institute The particle for stating old saggar inner bottom surface polishing siphons away；The housing is for preventing particles splatter；The filter cartridge dust remover is for filtering Particle.
Wherein, filter cartridge dust remover is connect with explosion-proof fan, and explosion-proof fan is connect with manufacturer's cleaning shaft.
Wherein, using saggar grinding apparatus according to preset program, old saggar inner bottom surface of polishing, saggar grinding apparatus It accurately polishes the surface of old saggar warpage peeling, exposes fresh surface.
Specifically, old saggar inner bottom surface after polishing is kept smooth, can continue directly to using.
Wherein, the old saggar in the present embodiment refers to that the thickness of saggar inner bottom surface corrosion reaches 0.5~4mm.After polishing Saggar come into operation after, at least extend 10 service life.
Fig. 1 is according to a kind of flow diagram of old saggar Retreatment method of the embodiment of the present invention, as shown in Figure 1, packet It includes:
S1 uses the old saggar inner bottom surface of saggar grinding apparatus polishing；
Wherein, using saggar grinding apparatus according to preset program, old saggar inner bottom surface of polishing, saggar grinding apparatus It accurately polishes the surface of old saggar warpage peeling, exposes fresh surface.
Preferably, the old saggar inner bottom surface after polishing is kept smooth.
Wherein, the old saggar in the present embodiment refers to that the thickness of saggar inner bottom surface corrosion reaches 0.5~4mm.After polishing Saggar come into operation after, at least extend 10 service life.
S2, old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing.
Wherein, anode material of lithium battery is broadly divided into nickle cobalt lithium manganate and cobalt acid lithium.Master when manufacturing anode material of lithium battery To use saggar as reaction vessel, in the reaction process of positive electrode, lithium carbonate is alkalinity, is easy to penetrate by hole Inside saggar, side reaction, record a demerit multiple reaction and circulation can occur with saggar for material at high temperature, and saggar inner bottom surface is easy Skin, and it is scaling-off, to influence product quality.
Specifically, the old saggar inner bottom surface after polishing applies nickle cobalt lithium manganate solution or cobalt acid lithium solution.
Preferably, the old saggar inner bottom surface after polishing applies lithium nickel cobalt dioxide solution in the present embodiment.
A kind of old saggar Retreatment method is present embodiments provided, the old saggar inner bottom surface of saggar grinding apparatus polishing is used； Old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing.Old saggar provided in this embodiment is again Processing method, extends the service life of saggar, to reduce the manufacturing cost of anode material of lithium battery.
In another embodiment of the present invention, on the basis of the above embodiments, the saggar grinding apparatus includes number Control milling machine, one cyclonic granule ash separator, filter cartridge dust remover and housing；Wherein,
The fixture of the CNC milling machine is for clamping the old saggar so that the old saggar holding is horizontal；The number The milling cutter for controlling milling machine is used for the old saggar inner bottom surface of polishing from vertical direction；The one cyclonic granule ash separator is used for institute The particle for stating old saggar inner bottom surface polishing siphons away；The housing is for preventing particles splatter；The filter cartridge dust remover is for filtering Particle.
Wherein, filter cartridge dust remover is connect with explosion-proof fan, and explosion-proof fan is connect with manufacturer's cleaning shaft.
A kind of old saggar Retreatment method is present embodiments provided, saggar grinding apparatus being capable of the full automatic old saggar of polishing Inner bottom surface not only increases grinding efficiency, and improves the safety of staff.
In yet another embodiment of the present invention, on the basis of the above embodiments, pass through the milling cutter of the CNC milling machine Polish the old saggar inner bottom surface, polish off with a thickness of 0.5~5mm.
Preferably, polished old saggar inner bottom surface using the milling cutter of CNC milling machine, polish off with a thickness of 2mm.
A kind of old saggar Retreatment method is present embodiments provided, bottom in the old saggar of milling cutter polishing of CNC milling machine is used Face, polish off with a thickness of 2mm, the part of bottom peeling in the old saggar that can guarantee not only to have polished, but also can guarantee old saggar Safety when continuing to use.
In another embodiment of the invention, on the basis of the above embodiments, S2 specifically:
S21 is that perhaps ethyl alcohol solute is nickle cobalt lithium manganate or cobalt acid lithium to water using solvent, equably by nickel cobalt mangaic acid Lithium or cobalt acid lithium are dissolved in water or ethyl alcohol, to configure nickle cobalt lithium manganate solution or cobalt acid lithium solution；
Preferably, using solvent in the present embodiment is ethyl alcohol, and solute is cobalt acid lithium.
S22 cleans out the old saggar inner bottom surface after polishing；
Wherein, the part of the peeling of the old saggar inner bottom surface remnants after cleaning up polishing, guarantees the clear of old saggar inner bottom surface It is clean, to prevent the effect for influencing to apply.
S23, the old saggar inner bottom surface after cleaning out use hairbrush even application nickle cobalt lithium manganate solution or cobalt acid Lithium solution.
A kind of old saggar Retreatment method is present embodiments provided, applies one layer by the old saggar inner bottom surface after polishing Perhaps cobalt acid lithium solution nickle cobalt lithium manganate or cobalt acid lithium particle are immersed in old saggar to rise in micropore to nickle cobalt lithium manganate solution To the effect of anti-stick and protection, to achieve the purpose that extend old saggar service life.
In another embodiment of the invention, on the basis of the above embodiments, the nickle cobalt lithium manganate configured in the S21 The concentration of solution or cobalt acid lithium solution is 50~300g/L.
Preferably, the concentration of the nickle cobalt lithium manganate solution or cobalt acid lithium solution that configure in S21 is 55g/L.
A kind of old saggar Retreatment method is present embodiments provided, nickle cobalt lithium manganate solution or cobalt acid lithium solution concentration are 55g/L, it is the rate in micropore that nickle cobalt lithium manganate or cobalt acid lithium particle can be promoted, which to be immersed in old saggar, to reach extension The purpose of old saggar service life.
In another embodiment of the invention, on the basis of the above embodiments, further includes:
S3 carries out drying operation to the old saggar after coating.
A kind of old saggar Retreatment method is present embodiments provided, drying operation is carried out to the old saggar after the completion of coating, It is the rate in micropore that nickle cobalt lithium manganate or cobalt acid lithium particle can be promoted, which to be immersed in old saggar, extends old saggar to reach The purpose of service life.
In another embodiment of the invention, on the basis of the above embodiments, S3 specifically:
In 40~900 DEG C of kiln or baking oven, to after coating old saggar carry out drying operation, drying operation when Between be 0.5~30h.
Preferably, drying operation is carried out to the old saggar after coating in the kiln that temperature is 120 DEG C, drying time is 24h。
Preferably, cooling down operation is carried out to old saggar after drying operation is completed.
A kind of old saggar Retreatment method is present embodiments provided, to old after coating in the kiln that temperature is 120 DEG C Saggar carries out drying operation, and drying time is for that for 24 hours, nickle cobalt lithium manganate or cobalt acid lithium particle can be promoted to be immersed in old saggar Rate in micropore, to achieve the purpose that extend old saggar service life.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims Within limited range.

Claims (3)

1. a kind of old saggar Retreatment method characterized by comprising
S1 uses the old saggar inner bottom surface of saggar grinding apparatus polishing；
S2, old saggar inner bottom surface coating nickle cobalt lithium manganate solution or cobalt acid lithium solution after polishing；
S2 specifically:
S21 is that perhaps ethyl alcohol solute is nickle cobalt lithium manganate or cobalt acid lithium to water using solvent, equably by nickle cobalt lithium manganate or Person's cobalt acid lithium is dissolved in water or ethyl alcohol, to configure nickle cobalt lithium manganate solution or cobalt acid lithium solution；
S22 cleans out the old saggar inner bottom surface after polishing；
S23, the old saggar inner bottom surface after cleaning out are molten using hairbrush even application nickle cobalt lithium manganate solution or cobalt acid lithium Liquid；
The concentration of the nickle cobalt lithium manganate solution or cobalt acid lithium solution that configure in the S21 is 50~300g/L；
Further include:
S3 carries out drying operation to the old saggar after coating；
S3 specifically:
In 40~900 DEG C of kiln or baking oven, to the old saggar progress drying operation after coating, the time of drying operation is 0.5~30h.
2. old saggar Retreatment method according to claim 1, which is characterized in that the saggar grinding apparatus includes numerical control Milling machine, one cyclonic granule ash separator, filter cartridge dust remover and housing；Wherein,
The fixture of the CNC milling machine is for clamping the old saggar so that the old saggar holding is horizontal；The numerical control mill The milling cutter of bed is used for the old saggar inner bottom surface of polishing from vertical direction；The one cyclonic granule ash separator is used for will be described old The particle of saggar inner bottom surface polishing siphons away；The housing is for preventing particles splatter；The filter cartridge dust remover is for filtering particle.
3. old saggar Retreatment method according to claim 2, which is characterized in that beaten by the milling cutter of the CNC milling machine Grind the old saggar inner bottom surface, polish off with a thickness of 0.5~5mm.
CN201810064068.4A 2018-01-23 2018-01-23 A kind of old saggar Retreatment method Active CN108500740B (en)

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CN115319905B (en) * 2022-07-29 2023-09-12 广东邦普循环科技有限公司 Sintering production line, sagger recycling system and method

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CN104409693B (en) * 2014-11-11 2016-09-07 广西民族师范学院 Positive pole material of lithium cobalt acid sintering process prevents the method that saggar corrodes
CN204673408U (en) * 2015-05-26 2015-09-30 南京浦镇海泰制动设备有限公司 A kind of valve module prosthetic device
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