Laboratory 8000M3/H NMP Solvent Recovery System For Pouch Cell Production

Principle introduction

It is used for the recovery of N-Methyl-2-pyrrolidone (NMP) organic solvent in the waste gas discharged from the coating machine during the production of lithium ion batteries. Under the condition of low energy consumption, the waste gas can be discharged up to the standard to achieve environmental protection, energy conservation and raw material recycling. The NMP exhaust gas of this system is discharged into the atmosphere after being cooled by cooling circulating water and treated with tail gas mist removal. After treatment, the concentration of tail gas emissions is much lower than the national emission standards, meeting environmental protection requirements.

 

Equipment Usage

It is mainly used in the lithium battery industry; A high-performance environmental protection equipment for the treatment of NMP waste gas generated during the coating process of lithium battery manufacturing.

Equipment characteristics

The combination of water-cooled spray is used to treat and purify NMP waste gas, which has efficient recovery function and purification effect.

The equipment is easy to operate and has clear instructions.

Combined design, main components can be easily disassembled and maintained.

Efficient recycling of NMP has high economic benefits for users.

 

Technical guidance

Exhaust gas evacuation organic matter concentration	＜50 mg/m3
NMP recovery rate	99%±3%
NMP recovery concentration	≥80%

 

Environmental requirements

A ambient temperature:+10~+40 ℃

B Environmental humidity: 20-90%

C Altitude:<1000 meters

D Applicable exhaust gas temperature:<120 ℃,

 

Flow chart

Equipment component parameters

No	Mechnism Name	Component Name	Material quality	Specification	Manufacturer
1	Host configuration	Heat exchanger	Aluminum tube	800*800*350	Self-made
2		Surface cooler	Copper tube, aluminum wing	800*800*200	ASD
3		Surface cooler	Copper tube, aluminum wing	800*800*200	ASD
4		Surface cooler	Copper tube, aluminum wing	800*800*200	ASD
5		Gas-liquid separator	304 stainless steel	800*800*50	Self-made
6		Induced draft fan	Stainless steel	3KW	Aozhong/Xinfeng
7		Host box	201 stainless steel	1.5mm	Self mate
8		Overall frame column	201 stainless steel	50*50*3	Hong'echeng/Dahua
9		Machine outer frame sealing plate	201 stainless steel	1.0mm	Hong'echeng/Dahua
10	Spray tower	Tower body	201 stainless steel	1200*1000*1700*1.5mm	Hong'echeng/Dahua
11		filler	304 stainless steel	800*800	Self-made
12		injector	316 stainless steel	DN10	Self-made
13		Circulating water pump	Anticorrosive materials	1.5KW	Yuanli
14	Cooling system	water tower	glass fibre	30T	Liang Yuan
15		Cooling fan	cast iron	1.5KW	Liang Yuan
16		Circulating water pump	Anticorrosive materials	2.2KW	Yuanli
17	Liquid storage device	Lower liquid tube	Aluminum plastic	2.0	Zeko
18		Liquid storage tank	201 stainless steel	1.5T	Self-made

 

Control system configuration parameters

No	Name	Specification	Qty	Manufacturer
1	Air switch	4P/32A	1pcs	chint
2	Unipolar switch	1P/10A	2pcs	chint
3	AC contactor	1210	3pcs	chint
4	Thermal overload relay	4A/6A	3pcs	chint
5	Indicator light	Red, green	2pcs	chint
6	Transfer switch	NP2	2pcs	chint
7	Fuses	6A	1set	chint
8	Temperature controller	18/H	2pcs	chint
9	Warning light	Ad16-22sm	1pcs	chint
10	Control electrical box	400*500*200、400*400*1500	1pcs each size	chint

 

Equipment power configuration

Device Name	Power
Circulating fan	3kw
Circulating water pump	2.2 kw
cooling tower	1.5 kw
Spray pump	1.5kw
Pumping pump	0.55 kw
NMP recovery device power	8.75kw