CN202177311U - Composite case for calcination - Google Patents
Composite case for calcination Download PDFInfo
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- CN202177311U CN202177311U CN2011201677783U CN201120167778U CN202177311U CN 202177311 U CN202177311 U CN 202177311U CN 2011201677783 U CN2011201677783 U CN 2011201677783U CN 201120167778 U CN201120167778 U CN 201120167778U CN 202177311 U CN202177311 U CN 202177311U
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Abstract
The utility model relates to a composite case for calcination, in particular to a composite case for calcining cobaltate lithium, which belongs to the technical field of calcination bearing kiln device manufacture. The outer layer of the composite case for calcination is a basic layer, and the inner layer of the composite case for calcination is a separation layer. The composite case for calcination is divided into a once molded integral composite case and a secondary molded embedded composite case. The integral composite case is further divided into a bottom separation integral composite case, a semi-separation integral composite case and a full-separation integral composite case. Characteristics such as wall thickness, weight and heat conductivity of the integral composite case are similar to those of a common case, and the integral composite case is not high in production cost, so that the production process is not affected after the prior composite case is replaced. The embedded composite case is divided into a bottom separation embedded composite case, a semi-separation embedded composite case and a full-separation embedded composite case. The basic layer and the separation layer of the composite case can respectively select optimum material formula and optimum calcination scheme to achieve best using effect, and damaged parts can be conveniently replaced in a using process.
Description
Technical field
The utility model relates to a kind of compound casket body of calcining usefulness, is specifically related to a kind of compound casket body of calcining materials, is particularly useful for cobalt acid lithium. the ternary lithium. and the calcining of lithium battery materials such as LiFePO4 belongs to and holds firing tool preparing technical field.
Background technology
Saggar is also claimed earthen bowl, crucible, the used a kind of container-like firing tool that holds when being the calcination product.Be widely used in chemical industry, non-ferrous metal, electronics, battery material, magnetic material, colorant, industries such as novel high-purity material.
The method for using of saggar is to put into saggar to the material of required processing to go into kiln heating calcination, and different material firing temperatures can be different.Calcining heat generally is divided into temperature (1250 ~ 1450 ℃) high temperature (more than 1450 ℃) in the low temperature (below 1250 ℃).It is also different that the different saggars of serviceability temperature are made selected material.The cryogenic material high-temperature material can not use, and service life might not be high at low temperatures for high-temperature material, and cost is high.In addition, the material of being calcined (hereinafter to be referred as material) also has different chemical properties, and acidity, neutrality and alkaline branch are arranged.The aggressivity that has is extremely strong, and the purity requirement that has is high.Therefore, saggar can not be etched with impurity in the high temperature use and separate out.This shows; Selecting for use not merely of saggar material will be considered life problems; Also to consider the problem that its corrosion resistance and high temperature resistance impurity are separated out, that is to say, the not necessarily anti-erosion of material that the life-span is high; Anti-erosion or the material that do not influence feed purity not necessarily the life-span high, the contradiction property between them is the key that the restriction saggar effectively uses always.Calcination with cobalt acid lithium is that example is explained this situation below.
Cobalt acid lithium is claimed cobalt-lithium oxide again, is the accumulate material of lithium battery, and purity requirement is high.Generally about 1000 ℃, this temperature adopts the calcined material effect of good thermal shock such as cordierite, spodumene, lithium ceramic splendid to the calcining heat of cobalt acid lithium.But cobalt acid lithium is to mix the back high-temperature calcination by cobaltosic oxide and lithium carbonate to form.Lithium is strong basicity, strong fluxibility material, has extremely strong hot, aggressive, therefore; The saggar of producing with above-mentioned material uses several times, and the saggar inner bottom surface will corrode and peel off, thereby spall is sneaked into and caused cobalt lithium acid impurity to exceed standard in the cobalt acid lithium and scrap; If adopt materials such as corundum, mullite, carborundum, corrosion resistance improves greatly, but because this type material thermal shock resistance is poor; Cost is high, and low temperature is low service life.Therefore, also be not suitable for the calcining of cobalt acid lithium.Current, cobalt acid lithium generally adopts to add in cordierite or the cordierite in corundum, the mullite with saggar and adds corundum, mullite, aluminium oxide.The former claims the mullite bonded cordierite this type of material, and the latter claims that cordierite combines mullite.This composite material corrosion resistance can increase, but thermal shock resistance also can decrease, so result of use is also unsatisfactory, does not have the fine solution corrosion resistance and the contradiction in service life.
Summary of the invention
The purpose of the utility model is to overcome the defective that existing calcining casket body can not satisfy corrosion resistance simultaneously and require service life; A kind of compound casket body that cobalt acid lithium is used of calcining is provided; Anti-thermal shock needs when making it to satisfy the calcining of cobalt acid lithium have desirable corrosion resistance again.
The technical scheme that provides according to the utility model: a kind of calcining is with compound casket body, and said compound casket volume surrounding is a basal layer, and internal layer is a separation layer.
Said separation layer covers the basal layer bottom fully.
Said separation layer covers whole basal layer.
Separation layer covers the basal layer bottom fully, and the side is lower than the basal layer top.
Said separation layer is embedded in basal layer inside.
One or more layers transition zone is arranged between said basal layer and the separation layer.
One deck high temperature adhesives layer is arranged between said each layer.
There is one to reserve dilatation joint between said basal layer and the separation layer.
Said base layer material is thermal shock resistance material or the material that adapts with the institute calcining materials.
Said insolated layer materials is erosion resistant materials or the material that adapts with the institute calcining materials.
The utility model is divided into whole compound casket body and the compound casket body of embedding mutually as required when using.
Whole compound casket body is basal layer and the reinforced one-shot forming of separation layer gradation when making, and moulding is after once sintered being integrally formed.Material is in the high-temperature calcination process, and the material that has can produce contraction owing to be heated, and separates with the saggar inner edge; Thereby only to the saggar basal erosion; The material that has shrinks little, and meeting opposite side, basal erosion are therefore from cost consideration; The whole compound end that can be made into again, isolate whole compound casket body, partly isolates whole compound casket body and the whole compound casket body of full isolation.
The compound casket body of phase embedding is to separate moulding to basal layer and separation layer, separately burns till, and is embedded in mutually together burning till the article combination then; But some separation layer can not burn till; Like the graphite separation layer, the same with whole compound saggar, the compound saggar of phase embedding is according to condition of different; Also can be made into the compound casket body of end isolation phase embedding, partly isolate compound casket body of phase embedding and the complete compound casket body of embedding mutually of isolating.
The beneficial effect of the utility model: whole compound saggar is one-shot forming, and aspects such as the overall structure of sintering, wall thickness, weight, thermal conductivity are similar with common saggar, and its production cost is not high, and the user changes use does not influence production technology, easy to use.The compound saggar of phase embedding is post forming; The split combining structure basal layer of sintering and separation layer can be selected the optimal material prescription respectively for use and burn till scheme; Even can select for use different specialized factories to produce; Combination is embedded in together mutually again, can bring into play best result of use, and can in use change damaged location very easily.
Description of drawings
Isolate whole compound casket body at the bottom of Fig. 1.
Fig. 2 partly isolates whole compound casket body.
Fig. 3 isolates whole compound casket body entirely.
Isolate the compound casket body of phase embedding at the bottom of Fig. 4.
Fig. 5 partly isolates the compound casket body of phase embedding.
Fig. 6 isolates the compound casket body of phase embedding entirely.
The specific embodiment
As shown in Figure 1, select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2, and separation layer 2 covers basal layer 1 bottom fully, and disposal pressed moulding promptly gets to calcine the end of with after drying is fired again and isolates whole compound casket body.
As shown in Figure 2; Select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2, and separation layer 2 covers basal layer 1 bottom fully; The side is lower than the basal layer top; Separation layer is embedded in basal layer inside, and disposal pressed moulding promptly gets after drying is fired and calcines with partly isolating whole compound casket body.
Embodiment 3
As shown in Figure 3, select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2, and separation layer 2 covers whole basal layer 1, and disposal pressed moulding promptly gets after drying is fired and calcines with the whole compound casket body of full isolation.
The basal layer of whole compound casket body and separation layer are owing to be once to be pressed into, and owing to the effect of pressure, faying face is irregular, can increase combined surface area like this between them, and this is favourable to strengthening both bond strengths.And in high-temperature sintering process; Two kinds of materials can interpenetrate, and react and the another kind of phase of mixing of generation, and this mixing also can be a kind of transition zone preferably mutually; If the materials variances of basal layer and separation layer is excessive; Spontaneous binder course is difficult for taking place or spontaneous combination does not make it combine well mutually, combines difficulty thereby cause, and can between basal layer and separation layer, increase one or more layers transition zone.But also increase one deck high temperature adhesives layer between each layer.
Therefore whole compound casket body will consider the coupling of sintering temperature, factors such as the coupling of the coefficient of expansion owing to be once to be pressed in the preparation of basal layer and insolated layer materials.
Embodiment 4
As shown in Figure 4, select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2; Separation layer 2 covers basal layer 1 bottom, and basal layer and separation layer are separated moulding, separately burns till; Be embedded in mutually together burning till the article combination then, promptly get and calcine with the compound casket body of end isolation phase embedding.
Embodiment 5
As shown in Figure 5, select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2; Separation layer 2 covers basal layer 1 bottom fully; The side is lower than the basal layer top, and basal layer and separation layer are separated moulding, separately burns till; Be embedded in mutually together burning till the article combination after reserving a dilatation joint, promptly get and calcine with partly isolating the compound casket body of phase embedding.
Embodiment 6
As shown in Figure 6; Select the thermal shock resistance material as basal layer 1, erosion resistant materials is as separation layer 2, and separation layer 2 covers whole basal layer 1; Basal layer and separation layer are separated moulding; Separately burn till, reserve behind the dilatation joint and be embedded in mutually together, promptly get and calcine with the compound casket body of full isolation phase embedding burning till article combination.
The compound saggar of phase embedding is because basal layer is different with insolated layer materials, and the coefficient of expansion is different, also is easy to assembly simultaneously, therefore will reserve dilatation joint.Dilatation joint also can be used as bonding and meets, but the filling high temperature adhesives, can not filling for what have that replacing needs.
Above-mentioned base layer material is thermal shock resistance material or the material that adapts with the institute calcining materials.
Above-mentioned insolated layer materials is erosion resistant materials or the material that adapts with the institute calcining materials.
Claims (10)
1. a calcining is characterized in that with compound casket body said compound casket volume surrounding is basal layer (1), and internal layer is separation layer (2).
According to the said calcining of claim 1 with compound casket body, it is characterized in that said separation layer (2) covers basal layer (1) bottom fully.
According to the said calcining of claim 1 with compound casket body, it is characterized in that said separation layer (2) covers whole basal layer (1).
According to the said calcining of claim 1 with compound casket body, it is characterized in that said separation layer (2) covers basal layer (1) bottom fully, the side is lower than the basal layer top.
According to the said calcining of claim 4 with compound casket body, it is characterized in that said separation layer (2) is embedded in basal layer (1) inside.
According to the said calcining of one of claim 1-4 with compound casket body, it is characterized in that between said basal layer (1) and the separation layer (2) one or more layers transition zone being arranged.
According to the said calcining of claim 6 with compound casket body, it is characterized in that one deck high temperature adhesives layer is arranged between said each layer.
According to the said calcining of one of claim 1-4 with compound casket body, it is characterized in that having between said basal layer (1) and the separation layer (2) one to reserve dilatation joint.
According to the said calcining of one of claim 1-4 with compound casket body, the material that it is characterized in that said basal layer (1) is thermal shock resistance material or the material that adapts with the institute calcining materials.
According to the said calcining of one of claim 1-4 with compound casket body, the material that it is characterized in that said separation layer (2) is erosion resistant materials or the material that adapts with the institute calcining materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677783U CN202177311U (en) | 2011-05-23 | 2011-05-23 | Composite case for calcination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677783U CN202177311U (en) | 2011-05-23 | 2011-05-23 | Composite case for calcination |
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| CN202177311U true CN202177311U (en) | 2012-03-28 |
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| CN2011201677783U Expired - Lifetime CN202177311U (en) | 2011-05-23 | 2011-05-23 | Composite case for calcination |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311498A (en) * | 2013-05-23 | 2013-09-18 | 李艳晖 | Roasting sagger for circulating type lithium battery anode material and preparation method thereof |
| CN103884190A (en) * | 2012-12-19 | 2014-06-25 | 日本精细陶瓷有限公司 | Ceramic coating sagger for manufacturing lithium ion anode active material and manufacturing method thereof |
| CN105698542A (en) * | 2016-03-21 | 2016-06-22 | 武汉理工大学 | Lithium battery high-temperature corrosion resistance laminar saggar and preparation method thereof |
| CN108249922A (en) * | 2018-02-12 | 2018-07-06 | 陕西盛华冶化有限公司 | A kind of metallurgy saggar and preparation method thereof |
| CN109467422A (en) * | 2018-04-20 | 2019-03-15 | 湖南德景源科技有限公司 | Dedicated high circulation special cermacis crucible of a kind of lithium electricity and preparation method thereof |
| CN110422832A (en) * | 2019-07-19 | 2019-11-08 | 南安市淇凯工业设计有限公司 | A kind of lithium iron phosphate battery positive material waste and old baking sagger smashing and grinding equipment |
| CN112430106A (en) * | 2020-11-30 | 2021-03-02 | 娄底市安地亚斯电子陶瓷有限公司 | Supporting body for ceramic sintering and preparation method thereof |
| CN115043650A (en) * | 2022-08-15 | 2022-09-13 | 天津巴莫科技有限责任公司 | Casket-like bowl and preparation method thereof |
-
2011
- 2011-05-23 CN CN2011201677783U patent/CN202177311U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884190A (en) * | 2012-12-19 | 2014-06-25 | 日本精细陶瓷有限公司 | Ceramic coating sagger for manufacturing lithium ion anode active material and manufacturing method thereof |
| CN103311498B (en) * | 2013-05-23 | 2015-08-19 | 李艳晖 | Circulating anode material of lithium battery baking sagger and preparation method thereof |
| CN103311498A (en) * | 2013-05-23 | 2013-09-18 | 李艳晖 | Roasting sagger for circulating type lithium battery anode material and preparation method thereof |
| CN105698542A (en) * | 2016-03-21 | 2016-06-22 | 武汉理工大学 | Lithium battery high-temperature corrosion resistance laminar saggar and preparation method thereof |
| CN105698542B (en) * | 2016-03-21 | 2018-06-08 | 武汉理工大学 | A kind of anti-lithium battery high temperature corrosion stratiform saggar and preparation method thereof |
| CN108249922B (en) * | 2018-02-12 | 2020-12-29 | 陕西盛华冶化有限公司 | Sagger for metallurgy and preparation method thereof |
| CN108249922A (en) * | 2018-02-12 | 2018-07-06 | 陕西盛华冶化有限公司 | A kind of metallurgy saggar and preparation method thereof |
| CN109467422A (en) * | 2018-04-20 | 2019-03-15 | 湖南德景源科技有限公司 | Dedicated high circulation special cermacis crucible of a kind of lithium electricity and preparation method thereof |
| CN110422832A (en) * | 2019-07-19 | 2019-11-08 | 南安市淇凯工业设计有限公司 | A kind of lithium iron phosphate battery positive material waste and old baking sagger smashing and grinding equipment |
| CN110422832B (en) * | 2019-07-19 | 2021-08-10 | 内蒙古圣钒科技新能源有限责任公司 | Grinding equipment is smashed with old and useless calcination sagger to lithium iron phosphate battery cathode material |
| CN112430106A (en) * | 2020-11-30 | 2021-03-02 | 娄底市安地亚斯电子陶瓷有限公司 | Supporting body for ceramic sintering and preparation method thereof |
| CN115043650A (en) * | 2022-08-15 | 2022-09-13 | 天津巴莫科技有限责任公司 | Casket-like bowl and preparation method thereof |
| CN115043650B (en) * | 2022-08-15 | 2022-11-15 | 天津巴莫科技有限责任公司 | Casket-like bowl and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200304 Address after: 410600 068 Jinsha Road, Ningxiang high tech Industrial Park, Changsha, Hunan Patentee after: Hunan de Jingyuan Technology Co., Ltd. Address before: 214046 Jiangsu city of Wuxi Province Huang Zhen Zhuang Qian Cun Qian Xi Xiang Chen Beitang District No. 27 (back door) Patentee before: Su Pingyu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |