Custom Lithium Battery ZJRH Series Rotary NMP Recovery Unit Manufacturers, OEM Factory

ZJRH Series Rotary NMP Recovery Unit

Process flow diagram：

Application：

The equipment is suitable for recovery of NMP organic solvent recovery in lithium battery manufacturing which can help users to achieve standard discharge and resource recovery. The device has simple structure, and obtain green and safe discharge without any changes to the existing production which eliminates environmental worries, reduces waste and saves energy.

Product principle：

Solvent recovery: we use the primary cooling recovery device (heat exchanger, cooling water cooler, chilled water cooler) to condense part of NMP from the air, and after the single-stage NMP adsorption rotor, the concentration of NMP organic solvent in exhaust air can be reduced to below 8ppm (1ppm NMP discharge concentration can be achieved by two-stage NMP adsorption rotor). After the exhaust gas is concentrated to a certain level, the NMP can be condensed and recovered by the freezing method.

Product Composition：

The unit is composed of heat exchanger, cooler, surface cooler, fan, adsorption rotor and rotor reactivation system.

Product Features：

● Control mode: PLC, DDC control and coordinated control system; Highly automatic control, each recovery device is designed with automatic control system and interlocking system, which ensure the safe production and stable operation of the coating machine and the recovery device.

● High-efficiency centrifugal fan, heat-resistant double-layer panel, stainless steel frame, electrical multiple protection for safe operation.

● With obvious energy saving effect, as the system is closed and circulated, processed air will be sent back to the coater oven through heat exchanger, which greatly reduced energy consumption.

● NMP solvent recovery rate ≥ 97%, solvent recovery concentration ≥ 85%, exhaust NMP concentration ≤ 1ppm

Advantages:

1. Relative humidity of purified air to be circulated to coating machine is ≤2%RH

2. 90% of purified air is circulated in the system to reduce power consumption

3. NMP content in discharge air is ≤1ppm

4. NMP solvent recovery rate reach 99%

5. Concentration of recovered NMP solvent ≥85%

6. Heat exchange efficiency reach 75% and temperature of the air to be circulated after the heat exchanger over 90℃

Technical parameters for reference:

ZJRH Series NMP Recovery System
Item/ Model	ZJRH-D10-10000	ZJRH-D20-20000	ZJRH-D30-30000	ZJRH-D40-40000	ZJRH-D50-50000	ZJRH-D60-60000
Process air flow CMH m³/h at 120℃	10000	20000	30000	40000	50000	60000
NMP concentration in Discharged exhaust air	≤50mg/m³ or 8 ppm（able to customized for 1ppm）
Concentration of Recovered NMP solvent	≥90%
NMP recovery rate	≥99%
Heat exchanger	Efficiency 65~75%
Cooler#1 kw（≤32℃ chilling water）	78	157	235	314	392	471
Cooler#2 kw（≤10℃ chilled water）	60	120	180	240	300	361
Return air fan（Exhaust fan from Coating machine） KW	11	15	30	37	55	55
Supply fan KW	7.5	15	30	37	45	55
Reactivation fan KW	1.1	1.1	1.1	1.1	1.1	1.1
Purified exhaust fan to atmosphere	1.1	2.2	3	4	4	5.5
Reactivation heating KW	3	6	9	12	15	18
Total rated power KW	23.7	39.3	73.1	52.5	120.1	134.6
Functional section：Heat Ex-changer,Cooler, VOC concentrator, process fan, Solvent Storage tank(optional)； PLC control system

Hangzhou Dry Air

Hangzhou Dry Air Intelligent Equipment Co., LTD is a professional China Lithium Battery-ZJRH Series Rotary NMP Recovery Unit manufacturers and OEM ZJRH Series Rotary NMP Recovery Unit factory.Is devoted to providing integrated environmental solutions for aerospace equipment and many other civilian applications. With a world-class team of research and development, marketing and service engineers, we have been researching and developing cutting-edge technology in environment and air treatment industry, our products are widely used in aviation, environmental protection, lithium battery, food, architecture, pharmaceutical, and many other industries, moreover, we have experience of providing integrated solutions and technical support for large satellite launch base, important cabin of Chinese Navy vessels, Chinese Army's warehouses. The company which was founded in 2004, is located in Qingshan science and technology industrial zone in the west of Hangzhou, covers an area of 25000 square meters and has more than 200 staff.

Adhering to safe, reliable and rigorous concept, relying on the abundant technical research and development ability, the company has achieved great development in many industrial applications of its products in recent years; The company has a number of independent property rights, it was awarded two patents of invention and nearly 20 utility patents; In the process of products and technology research and development, the company attach much importance to deep cooperation with some major domestic scientific research institutes. An environment testing laboratory has been built in cooperation with Zhejiang university which can provide good reference for government to set environment management standards and some other industrial standards.