WO2023005962A1 - 锂电池正负极材料烧结炉 - Google Patents

锂电池正负极材料烧结炉 Download PDF

Info

Publication number
WO2023005962A1
WO2023005962A1 PCT/CN2022/108191 CN2022108191W WO2023005962A1 WO 2023005962 A1 WO2023005962 A1 WO 2023005962A1 CN 2022108191 W CN2022108191 W CN 2022108191W WO 2023005962 A1 WO2023005962 A1 WO 2023005962A1
Authority
WO
WIPO (PCT)
Prior art keywords
firing
loading
chamber
furnace
firing furnace
Prior art date
Application number
PCT/CN2022/108191
Other languages
English (en)
French (fr)
Inventor
李萍
黄立刚
张跃进
Original Assignee
苏州科尔珀恩机械科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州科尔珀恩机械科技有限公司 filed Critical 苏州科尔珀恩机械科技有限公司
Publication of WO2023005962A1 publication Critical patent/WO2023005962A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/021—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces having two or more parallel tracks
    • F27B9/022—With two tracks moving in opposite directions
    • F27B9/023—With two tracks moving in opposite directions with a U turn at one end
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/04—Sintering
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

本申请公开了一种锂电池正负极材料烧结炉，其包括两个烧成炉腔，烧成炉腔中设置有移载匣钵的输送装置，第一烧成炉腔的出口端与第二烧成炉腔的入口端通过第一装卸区衔接连通，第二烧成炉腔的出口端与第一烧成炉腔的入口端通过第二装卸区衔接连通，以形成第一烧成炉腔、第一装卸区、第二烧成炉腔、第二装卸区再回到第一烧成炉腔的循环产线，每个装卸区的内部设置有翻转匣钵的上下料装置。

Description

锂电池正负极材料烧结炉
本申请要求在2021年07月27日提交中国专利局、申请号为202110851040.7的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及烧结炉技术领域，例如涉及一种锂电池正负极材料烧结炉。
背景技术
针对锂电池原材料制备的工业烧结炉，传统结构为单腔式，即将正负极材料装入匣钵中，再将匣钵放入单腔炉体中进行烧结。面对生产形势，传统窑炉产能低、生产能耗高、占地面积大，无法满足生产需要。
一些多腔式窑炉，即将单腔扩展设置成多个的烧结炉，一般仅是简单地将多个单腔集成，产能虽然提高了，但能耗也成倍增加，生产成本高。另外，可以对炉体增加循环线，如图3所示，通过循环线提高材料流转效率，但是由于锂电池正负极材料生产过程禁止掺杂锌(Zinc，Zn)、铜(Cuprum，Cu)、锡(Stannum，Sn)等金属材质，对环境要求比较高，存在对电池材料造成干扰的隐患。
发明内容
本申请提供一种锂电池正负极材料烧结炉，从产能、生产能耗、占地等多方面考虑，优化设计炉体结构，降低生产成本，满足行业需要。
一种锂电池正负极材料烧结炉，包括两个烧成炉腔，烧成炉腔中设置有移载匣钵的输送装置，第一烧成炉腔的出口端与第二烧成炉腔的入口端通过第一装卸区衔接连通，第二烧成炉腔的出口端与第一烧成炉腔的入口端通过第二装卸区衔接连通，以形成第一烧成炉腔、第一装卸区、第二烧成炉腔、第二装卸区再回到第一烧成炉腔的循环产线，每个装卸区的内部设置有翻转匣钵的上下料装置。
附图说明
图1是本申请实施例提供的一种锂电池正负极材料烧结炉的结构示意图；
图2是本申请实施例提供的一种锂电池正负极材料烧结炉的结构扩展示意图；
图3是一种外循环式窑炉的结构示意图；
图4是一种单腔窑炉中放置6列单层匣钵的烧结示意图；
图5是一种单腔窑炉中放置6列双层匣钵的烧结示意图；
图6是本申请实施例提供的一种双腔烧结炉中放置两列匣钵的烧结示意图。
具体实施方式
下面结合附图并通过具体实施方式来说明本申请的技术方案。
请参阅图1所示，本实施例提供一种锂电池正负极材料烧结炉，其包括两个烧成炉腔，烧成炉腔中设置有移载匣钵的输送装置5，第一烧成炉腔1的出口端与第二烧成炉腔2的入口端通过第一装卸区3衔接连通，第二烧成炉腔2的出口端与第一烧成炉腔1的入口端通过第二装卸区4衔接连通，从而形成第一烧成炉腔1、第一装卸区3、第二烧成炉腔2、第二装卸区4再回到第一烧成炉腔1的循环产线，每个装卸区的内部设置有翻转匣钵的上下料装置。
烧成炉腔的两端口分别设置有使炉内工艺气体达到要求浓度的置换室6，置换室6是保障辊道窑等热处理窑炉的烧成炉腔内工艺气体达到要求浓度的关键设备，其设置在热处理窑炉烧成炉腔的两端，物料进、出烧成炉腔时在置换室6中完成气体置换，以保证炉内气体浓度不变。置换室6的结构一般采用阀门形式，实现烧成炉腔内通断控制，此处不对其结构限定。
另外，烧成炉腔中按送料方向依次分为升温段、保温段和冷却段，第一烧成炉腔1的冷却段通过换热装置7向第二烧成炉腔2的升温段传递热量，第二烧成炉腔2的冷却段通过换热装置7向第一烧成炉腔1的升温段传递热量。第一烧成炉腔1与第二烧成炉腔2按送料方向相反地并排贴靠设置，第一装卸区3与第二装卸区4分别贴靠于两个烧成炉腔的两端，形成炉内循环线，从而最大程度排布每个炉腔，紧凑结构，提高集成度。
为了尽可能减少占地面积，第一烧成炉腔1与第二烧成炉腔2向上叠放布置，对应装卸区中设置有升降装置。根据一些场地情况，第一烧成炉腔1与第二烧成炉腔2也可以是水平铺放布置，对应装卸区中设置有横送装置。
在此基础上，烧成炉腔的数量可为至少三个，至少三个烧成炉腔可集成，依次通过多个装卸区首尾衔接，最后形成整个循环，如图2所示为四炉腔的结构示意图。
所述锂电池正负极材料烧结炉可以实现：(1)多腔构造，结构紧凑，极简占地，集成感强；(2)形成炉内循环，无外循环线，生产效率高；(3)出炉即输送，减少物料湿度及磁性异物影响，降低设备要求；(4)相邻烧成加热、 冷却错位，热量再利用，节能降耗；(5)成本降低，产能增加。
下面以6列单层单腔窑炉(如图4所示)、6列双层单腔窑炉(如图5所示)和采用本实施例结构的双腔炉(如图6所示)从产能、生产能耗、占地进行对比说明，详见下表1：
表1
Figure PCTCN2022108191-appb-000001
Figure PCTCN2022108191-appb-000002
Figure PCTCN2022108191-appb-000003
数据表明，采用本实施例的双腔炉与单腔窑炉相比，每条窑炉产能可提升426.6％，每万吨产能的生产成本可降低59.3％，占地面积可节约83.7％，改进效果显著。
另外，双腔构造，极简占地，节能约30％；加热、冷却错位，热量再利用，再节能约20％；没有外循环线，提高设备可靠性；出炉即输送，减少物料湿度及磁性异物影响。
综上，上述的锂电池正负极材料烧结炉从产能、生产能耗、占地等多方面均得到优化，降低了生产成本，极大提高了产能，为窑炉行业提出了新的研发思路。

Claims (7)

  1. 一种锂电池正负极材料烧结炉，包括两个烧成炉腔，所述烧成炉腔中设置有移载匣钵的输送装置，第一烧成炉腔的出口端与第二烧成炉腔的入口端通过第一装卸区衔接连通，第二烧成炉腔的出口端与第一烧成炉腔的入口端通过第二装卸区衔接连通，以形成所述第一烧成炉腔、所述第一装卸区、所述第二烧成炉腔、所述第二装卸区再回到所述第一烧成炉腔的循环产线，每个装卸区的内部设置有翻转匣钵的上下料装置。
  2. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述烧成炉腔中按送料方向依次分为升温段、保温段和冷却段，所述第一烧成炉腔的冷却段通过换热装置向所述第二烧成炉腔的升温段传递热量，所述第二烧成炉腔的冷却段通过换热装置向所述第一烧成炉腔的升温段传递热量。
  3. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述第一烧成炉腔与所述第二烧成炉腔按送料方向相反地并排贴靠设置，所述第一装卸区与所述第二装卸区分别贴靠于两个烧成炉腔的两端，形成炉内循环线。
  4. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述第一烧成炉腔与所述第二烧成炉腔向上叠放布置，每个装卸区中设置有升降装置。
  5. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述第一烧成炉腔与所述第二烧成炉腔水平铺放布置，每个装卸区中设置有横送装置。
  6. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述烧成炉腔的两端口分别设置有两个置换室，所述置换室设置为使炉内工艺气体达到要求浓度。
  7. 根据权利要求1所述的锂电池正负极材料烧结炉，其中，所述烧成炉腔的数量为至少三个，至少三个烧成炉腔依次通过多个装卸区首尾衔接。
PCT/CN2022/108191 2021-07-27 2022-07-27 锂电池正负极材料烧结炉 WO2023005962A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110851040.7 2021-07-27
CN202110851040.7A CN115247955A (zh) 2021-07-27 2021-07-27 锂电池正负极材料烧结炉

Publications (1)

Publication Number Publication Date
WO2023005962A1 true WO2023005962A1 (zh) 2023-02-02

Family

ID=83697631

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/108191 WO2023005962A1 (zh) 2021-07-27 2022-07-27 锂电池正负极材料烧结炉

Country Status (2)

Country Link
CN (1) CN115247955A (zh)
WO (1) WO2023005962A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB128180A (en) * 1918-06-08 1919-10-01 Carl Henry Zwermann Improvements in Kilns.
GB508738A (en) * 1938-05-09 1939-07-05 William Warren Triggs Improvements in and relating to electrically heated double tunnel furnaces
DE3117828A1 (de) * 1981-05-06 1982-11-25 Institut für Bau- und Grobkeramik, DDR 5300 Weimar Tunnelofen mit gegenlaeufig betriebenen brennkanaelen und verfahren zum betreiben desselben
CN201093861Y (zh) * 2007-09-06 2008-07-30 云南常青树化工有限公司 双拼式节能型工业隧道窑
CN102221290A (zh) * 2011-05-24 2011-10-19 苏州工业园区胜龙电炉制造有限公司 辊棒式上下双向热回收型连续等温热处理节能炉
CN204187975U (zh) * 2014-09-28 2015-03-04 李华 一种循环复式隧道窑
CN104515392A (zh) * 2013-10-01 2015-04-15 Siti-B&T集团股份公司 用于陶瓷产品等的烧窑

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257879B1 (en) * 1999-02-26 2001-07-10 Wei-Kao Lu Paired straight hearth (PSH) furnaces for metal oxide reduction
CN202973849U (zh) * 2012-07-04 2013-06-05 北京当升材料科技股份有限公司 一种锂电池正极材料烧结窑炉
CN105423748B (zh) * 2015-12-04 2018-01-19 中国电子科技集团公司第四十八研究所 一种温区互错布置双层辊道窑
CN108692567A (zh) * 2018-03-30 2018-10-23 中国电子科技集团公司第四十八研究所 一种锂电池高镍三元材料烧结炉排胶段炉体及烧结炉
CN112629247B (zh) * 2020-12-21 2022-01-28 苏州科尔珀恩机械科技有限公司 一种锂电池负极材料焙烧炉及焙烧方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB128180A (en) * 1918-06-08 1919-10-01 Carl Henry Zwermann Improvements in Kilns.
GB508738A (en) * 1938-05-09 1939-07-05 William Warren Triggs Improvements in and relating to electrically heated double tunnel furnaces
DE3117828A1 (de) * 1981-05-06 1982-11-25 Institut für Bau- und Grobkeramik, DDR 5300 Weimar Tunnelofen mit gegenlaeufig betriebenen brennkanaelen und verfahren zum betreiben desselben
CN201093861Y (zh) * 2007-09-06 2008-07-30 云南常青树化工有限公司 双拼式节能型工业隧道窑
CN102221290A (zh) * 2011-05-24 2011-10-19 苏州工业园区胜龙电炉制造有限公司 辊棒式上下双向热回收型连续等温热处理节能炉
CN104515392A (zh) * 2013-10-01 2015-04-15 Siti-B&T集团股份公司 用于陶瓷产品等的烧窑
CN204187975U (zh) * 2014-09-28 2015-03-04 李华 一种循环复式隧道窑

Also Published As

Publication number Publication date
CN115247955A (zh) 2022-10-28

Similar Documents

Publication Publication Date Title
CN203080030U (zh) 一种环式焙烧机
CN109028938B (zh) 一种双层密封辊道炉
EP3901547A1 (en) Furnace for producing secondary battery positive electrode material and method for firing secondary battery positive electrode material
CN108302933A (zh) 气电混烧多层缓冷辊道窑
WO2023005962A1 (zh) 锂电池正负极材料烧结炉
CN106524753A (zh) 全自动双层电加热辊道窑炉
CN210773377U (zh) 一种锂离子电池正极材料生产中的烧结装置
CN104457227A (zh) 一种分体式隧道窑
CN106595298A (zh) 叠加式双层电加热辊道窑炉
CN217179177U (zh) 一种窑炉烘干系统
CN105347324B (zh) 连续式磷酸铁锂高温煅烧气氛保护生产线
CN204413062U (zh) 环保节能精密铸造型壳电焙烧炉
CN114620726A (zh) 一种小颗粒碳酸盐矿石煅烧联产高纯co2反应器及其方法
CN107895644A (zh) 一种用于重稀土晶界扩渗的生产线及生产方法
CN209877650U (zh) 一种高效传热匣钵
CN106524751A (zh) 全自动串叠式双层辊道窑炉
CN106524752A (zh) 双层辊道窑炉
CN111595147A (zh) 一种页岩砖烧结辊道窑
JP5830787B2 (ja) 連続式熱処理炉
CN213120034U (zh) 一种锂电池用氧化铝烧制辊道窑
CN209820129U (zh) 一种新型的辊道窑
CN216925190U (zh) 一种双向双腔炉
JP2003077398A (ja) プラズマディスプレイパネルの製造方法およびそのための炉設備
CN213416953U (zh) 卧式双室真空热处理设备
CN218627710U (zh) 一种烧结辊道窑

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22848567

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE