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NMP recovery system and lithium battery coating system

A recovery system and coating machine technology, which is applied to the coating of electrode collectors, devices for coating liquid on the surface, coatings, etc., can solve the problems of large volume, limited volume, and large heat loss of air ducts. Achieve the effects of reducing floor space, reducing heat loss, and facilitating transportation and installation

Pending Publication Date: 2020-08-18
广东欧赛莱科技有限公司
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  • Abstract
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Problems solved by technology

However, the existing NMP recovery system usually can only achieve a fixed circulating air volume (for example, the existing NMP recovery system is limited in volume due to factors such as transportation, so it can only achieve a maximum circulating air volume of 150,000 during work), In addition, the volume of the air duct in the NMP recovery system also needs to be set very large, resulting in a large heat loss

Method used

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  • NMP recovery system and lithium battery coating system
  • NMP recovery system and lithium battery coating system
  • NMP recovery system and lithium battery coating system

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, outside, inside, longitudinal, horizontal, vertical, horizontal, etc. indicate the orientation or positional relationship based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientat...

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Abstract

The invention discloses an NMP recovery system and a lithium battery coating system. The NMP recovery system comprises a coating machine drying oven, an NMP adsorption system and a plurality of cyclicrecovery systems, wherein the coating machine drying oven comprises a plurality of exhaust fans and a plurality of return fans, each cyclic recovery system comprises a heat exchanger and a condensation recovery device, an exhaust outlet is connected with a high-temperature medium inlet of the heat exchanger through an exhaust pipe, and a high-temperature medium outlet of the heat exchanger is connected with a first inlet of the condensation recovery device through a condensation pipe. An air inlet of the NMP adsorption system is connected with a first outlet of each condensation recovery device through an NMP air pipe; a second outlet of the condensation recovery device is connected with a low-temperature medium inlet of the heat exchanger through a first air return pipe, and a low-temperature medium outlet of the heat exchanger is connected with the air return opening through a second air return pipe. According to the technical scheme, controllable adjustment can be achieved so as tomeet the recovery requirements of various circulating air volumes (especially the ultra-large circulating air volume), and heat losses can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of lithium battery manufacturing, in particular to an NMP recycling system and a lithium battery coating system. Background technique [0002] In recent years, with the vigorous promotion of new energy policies, the lithium battery industry has shown a blowout growth, and as a key equipment in the lithium battery manufacturing industry, the demand for lithium battery coating machines is also going hand in hand. The lithium battery coating machine is mainly composed of a coating part and an oven part. The oven part consumes a lot of heat energy due to heating the air; Spread it on the electrode substrate (copper foil or aluminum foil), and then heat the ambient temperature air to 120°C by the heater in the oven part, so that the hot air dries the slurry solvent NMP coated on the electrode substrate, and the remaining The solid organic polymer forms a strong and highly insulating layer on the electrode substr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00B01D53/06B05D3/04H01M4/04
CPCB01D5/0036B01D5/0057B01D5/0093B01D53/06B05D3/0413H01M4/0404B01D2257/70B01D2259/4009Y02E60/10
Inventor 郭少辉蒋永忠吴承翰
Owner 广东欧赛莱科技有限公司
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