High-Efficiency 9000 m³/h NMP Solvent Recovery System

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Whatsapp:+86 13174506016

Email:David@batterymaking.com

Item NO.:
TMAX-GT-9000FL
Payment:
L/C,T/T,Western Union, Paypal
Product Origin:
China
Shipping Port:
Xiamen
Lead Time：
5 days
Certificate:
CE ROHS Certificate

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Product Detail

High-Efficiency 9000 m³/h NMP Solvent Recovery System

I. Function Overview

This series of NMP recovery systems utilizes the miscibility of NMP and water to recover exhaust gases emitted from coating machines. The system operates fully automatically, ensuring operational stability and safety. It adopts a three-stage spray absorption design, and the tail gas emission is significantly below the national emission standards. The system includes: ventilation ducts, recovery towers, pump groups, blower, NMP liquid storage tank, and control system. The unit features a high recovery rate, low operating cost, compact and aesthetic design, small footprint, excellent performance, and ease of operation—suitable for various lithium battery production lines during the coating process.

II. System Configuration

1. Air Volume Capacity: 9000 m³/h
Complies with GB 30484-2013 "Emission Standard of Pollutants for Battery Industry" regarding total non-methane hydrocarbon (NMHC) emissions.

2. Main Unit Color: SUS gray.

3. NMP Recovery Equipment Functional Modules:

No.	Module	Function Description
1	Recovery Tower	Recovers NMP vapor and ensures emission compliance through water spray absorption.
2	Pump Group	Circulates water within the recovery tower and discharges liquid.
3	Blower	Delivers air into the recovery tower and maintains positive pressure in the coater.
4	Storage Tank	Stores recovered NMP waste liquid.
5	Electrical Control System	Enables automation between the recovery system and coating machine, stabilizing oven concentration and meeting discharge standards.

4. Delivery List:

No.	Equipment Name	Model	Qty	Remarks
1	Recovery Tower	TMAX-GT-9000FL	1 set	SUS304
2	Blower	3KW	1 unit	Intelligent frequency control
3	Control Box	NMP4K-1	1 set	Local + remote control
4	Water Pump	1.5KW	3 units	Chemical pipeline pumps
5	Storage Tank	2m³	1 unit	SUS201
6	Discharge Pump	0.35KW	1 unit	Corrosion-resistant pump

5. Main Components of 9000 Air Volume NMP Recovery System:

No.	Item	Specification	Qty	Remarks
1	Tower Body	∅1.0m × H2.2m	3 pcs	SUS304
2	Corrugated Packing	φ1.2m×20mm×3 layers×0.3mm	3 sets	SUS304
3	Wire Mesh Packing	φ1.0m×20mm	1 set	SUS304
4	Water Pump	1.5KW	3 pcs	Tank internal pumps
5	Online Waste Liquid Concentration Meter	CM-800α	1 set	TMAX
6	Exhaust Fan	4KW	1 set	Guangzhou XinFeng
7	Frequency Converter	4KW	1 set	V&T
8	Control Cabinet	-	1 set	Q235, outdoor cabinet
9	Circulation Piping	-	1 set	SUS304
10	Storage Tank	2m³	1 set	SUS201
11	Liquid Level Alarm	-	1 set	TMAX
12	Discharge Pump	0.35KW	1 unit	Corrosion-resistant pump

IV. Design Basis and Standards

1. Compliant with national, industry, and local regulations, as well as client requirements. Ensures treated exhaust meets legal and project-specific standards.

2. Employs efficient, energy-saving, and practical treatment processes with the goal of low energy consumption, minimal investment, small footprint, and easy maintenance.

3. Major components and electrical systems use branded and reliable manufacturers.

4. No secondary pollution is generated during construction or operation.

V. Technical Parameters

No.	Parameter	Value
1	Max Exhaust Treatment	9000 m³/h
2	Single Tower Size	∅1.2m × H2.2m
3	Power Supply	380V / 3P / 50Hz
4	Installed Power	8.5KW (4.5KW circulation + 4KW fan)
5	Operating Weight	2 tons
6	Floor Load Requirement	500 KG/m²
7	Recovery Efficiency	≥99.6%
8	NMP Recovered Concentration	Adjustable from 80% to 90%
9	Tail Gas Concentration	＜50 mg/m³
10	Soft Water Consumption	≤0.05 m³/h
11	Installation Dimension	7m × 2m

VI. Process Flow

1. Process Diagram(Diagram for reference only)

1. Installation Render(Image for reference only)

VII. NMP Recovery Tower Working Principle

1. The system recovers NMP from exhaust gases via pure water absorption. Waste gas enters from the bottom, where NMP dissolves in water or steam. After absorption, the gas-liquid mixture passes through a separator and then a rinsing unit to remove remaining NMP. As the waste gas is hot, an energy exchange occurs, causing partial evaporation of water. A circulation pump recycles liquid through the absorption unit, improving heat exchange efficiency and increasing recovered NMP concentration. After processing, exhaust can be discharged directly—essentially achieving zero emissions.

2. Tower Structure
The tower comprises three main zones:

Spray Heat Exchange Section: Enables rapid mass and heat transfer via direct contact between NMP vapors and water.

Mass Transfer Separation Section: Uses structured packing (140Y) for high-efficiency counter-current absorption.

Demisting Section: Captures mist through inertial impaction and swirl separation, with a demisting efficiency of 90–99%.

VIII. Control System

1. Electrical Panel Configuration

No.	Component	Brand	Qty	Remarks
1	Electrical Parts	Chint	1 set
2	Frequency Converter	V&T	1 set
3	NMP Liquid Sensor	Local	1 set	With lens cleaning device
4	Valves	Local	1 set

2. Control System Overview

No.	Item	Specification	Remarks
1	Main Control System	Independent outdoor control cabinet, remote start/stop from coater head
2	Operation Modes	Manual, automatic, emergency stop, and remote start/stop
3	Waste Liquid Concentration	Display and configurable value
4	Alarm Functions	Sound and light alarm at coater head and outdoor buzzer alarm
5	Safety Protection	Over-temperature alarm and power-off protection