Large NMP Recovery System Waste Gas Treatment Machine For Pouch Cell Production

I、Introduction to system principle

The NMP solvent evaporates after heating in the coating process. The NMP recovery equipment condenses the volatile gas step by step, gradually reduces the concentration of NMP in the gas through multistage condensation, and finally discharges the purified gas.

II、System composition

The recovery system consists of solvent NMP recovery host, intelligent control system, air duct system, waterway system, solvent NMP collection system and tail gas treatment system.  

Equipment Introduction

1 .Purpose of equipment

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

2 .Equipment characteristics

The NMP waste gas is treated and purified by water cooling and spraying, which has high-efficiency recovery function and high-efficiency purification effect.

The equipment is easy to operate with clear instructions.

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

High efficiency recovery of NMP, with high economic benefits for users

3、Main technical parameters of equipment:

2.3.1.NMP Technical parameters of recovery equipment：

A. Exhaust temperature: ≤ 120 ℃

B. Treatment air volume: 30000m ³/ H (variable frequency speed regulation)

C. Recovery rate: ≥ 95%, seasonal error ≤ 3%

D. Concentration of recovered waste liquid ≥ 85%, seasonal error ≤ 3%

E. Exhaust emission concentration: <50mg/m ³ I.e. <12.3ppm

F. Operating power of recovery system: 25kW *1 set

4. Other equipment requirements

Each positive coating machine is equipped with 1 set of NMP recovery equipment

① System power requirements: AC380V, 50Hz, three-phase five wire.

② Size of main machine recovery device: L3000*W1800*H2500

③ Floor area: 10000*2000

④ Purification tower size: Φ 1500*3200.

⑤ Cold: 36P.

⑥ Net weight of each set of equipment: 2T, operating weight: 4T.

⑦ Air duct; Made of galvanized iron sheet and stainless steel. (otherwise negotiated with the customer)

⑧ Circulating water pipe: PVC pipe.

⑨ Chint air switch, AC contact, thermal relay, phase sequence protection relay and time relay are used as electrical accessories.

⑩ Design automatic control system with flashing alarm.

⑪ For better heat dissipation, the system uses an independent cooling tower to supply circulating cooling water.