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/10,000m3/H High-Capacity NMP Solvent Recovery Equipment For Positive Electrode Coating System

10,000m3/H High-Capacity NMP Solvent Recovery Equipment For Positive Electrode Coating System


Contact Person:Louis Yang

Email: Louis@chinabatterymachine.com

Tel:+86 13003860308
Whatsapp: +86 13003860308
Wechat:18659217588

  • Item No.:

    LITH-NMP-10000
  • Payment:

    Credit Card, Paypal, T/T , Western Union, LC
  • Shipping port:

    Xiamen Port
  • Lead Time:

    5 days

New Products

  • Product Details

10,000m3/H High-Capacity NMP Solvent Recovery Equipment For Positive Electrode Coating System




I. Party A's project Content:

A positive electrode coating machine with a maximum exhaust capacity of 10,000 M3/H

Party A requires: to configure a set of 10,000M3/H for the cathode coating machine3NMP recovery system, emission standard.

 

II. Party B's Plan:

A set of NMP recovery system, emission standards.

Configuration Listing:

device name

quantity

remarks

The NMP recovery system host

A set

1. Recovery rate: 99%

2. Recovery concentration: 80%

3. Extail gas emission concentration: <50 mg / m3

4. Installed power is 9.95KW

spray tower

One set (2 towers)

Cooling water tower

A set

fluid reservoir

One


III.Equipment Profile:

1. The maximum 10000M3At / h. In order to realize N-methyl pyrrolidenone (NMP) solvent recovery in cathode process exhaust, a new NMP recovery system is planned to achieve the purpose of energy saving and environmental protection.

2. The recovery system adopts the NMP recovery method of cooling circulating water and water absorption (spraying concentration + water washing gas), so as to maximize the requirements for the recovery of NMP gas discharged from the coating machine under the premise of economy and energy saving.


IV.Introduction of the system principles.technical feature:

1. Introduction of the system principles

It is used for the recovery of N-methyl pyrrolidenone (NMP) organic solvent discharged by the coating machine in the production process of lithium ion battery, under the condition of low energy consumption, makes the waste gas discharge to the standard, and realizes environmental protection, energy saving and raw material recovery.The NMP exhaust gas of the system is discharged to the atmosphere after cooling circulating water cooling + exhaust water washing. After treatment, the exhaust gas emission concentration is <50mg / m³, which meets the environmental protection requirements (see No.11 Non-methane total hydrocarbon, Table 5 of Battery Industry.

2. Technical characteristics of the equipment

A.It can start the applicator control system with one key, and automatically control the whole NMP recovery system. The equipment is equipped with monitoring operating conditions and abnormal alarm devices such as: (fan overload, phase absence leakage protection and abnormal alarm, etc., simple operation, safe and reliable).

B.The system controls safety and protection to meet the continuity requirements of safety production.

C.The system is equipped with frequency converter and applicator exhaust fan to ensure stable coating production.

D.Unique equipment selection, equipment manufacturing, equipment installation methods and optimized process flow, to eliminate the general NMP recovery system often appear run, risk, drop, leakage and other phenomena.

E.After the installation of the whole system, the commissioning personnel shall strictly follow the regulating specifications of the equipment, and will not affect the use of the equipment due to the differences in the technical level of the operating staff.

 

V.Equipment process:

1. Adopt the front cooling circulating water cooling condensation recovery and rear exhaust gas demist treatment process, low energy consumption, high efficiency, low operation and maintenance costs, and meet the environmental protection emission standards.During the coating process, NMP is heated and evaporated into gas. After entering the recovery system, the recovery system uses a pipe wing cooler to cool the NMP waste gas. After cooling, the waste gas is condensed into liquid, and the NMP condenses into foggy droplets more quickly into liquid recovery.Finally, the exhaust gas is concentrated again by the washing and pre-cooling device and discharged through the defogging system into the atmosphere.

2. Equipment recovery process: containing NMP waste gas after waste heat recovery device into the NMP recovery system, in the recovery system for tertiary water-gas heat exchange from about 120℃ to about 30℃, there is a lot of NMP precipitation, NMP gas concentration gradually reduced, exhaust gas after induced fan booster line, gas and liquid full contact on the packing surface, condensation into liquid, waste liquid fell into the recovery box after the waste liquid pipe automatic drainage into the storage tank.Now over 90% of the exhaust gas has been recovered; the exhaust gas enters the spray system through two spray circulation water adsorption, and the NMP content in the exhaust gas is less than the specified emission value. The set concentration of the spray system circulates the exhaust gas after many cycles.

 

VI.technological guidance

1. Purification efficiency: (stable coating)

Tail gas emission concentration

50mg/m³

NMP percent recovery

≥99%

The NMP recovery concentration of the indicated

≥80%

 

VII.Recycle the system host configuration

order number

Organization name

Part name

material quality

specifications and models

manufacturers

1

Host configuration

heat exchanger

aluminium pipe

900*900*500*2

QR self-control

2

Table cooler

Copper pipe, aluminum wing

900*900*200*2

ASD

3

Table cooler

Copper pipe, aluminum wing

900*900*200*2

ASD

4

Table cooler

Copper pipe, aluminum wing

900*900*200*2

ASD

5

gas-liquid separator

304 Stainless steel

900*900*50*2

QR self-control

6

induced draft fan

cast steel

3KW

Odo.Xin wind

7

Host box

201 Stainless steel

1.5mm

QR self-control

8

The frame column of the whole machine

201 Stainless steel

50*50*3

Hong and sincere / Dahua

9

The outer frame of the whole machine is sealed

201 Stainless steel

1.0mm

Hong and sincere / Dahua

10

Water cooling circulation section

Cooling water tower

glass fiber reinforced plastics

30T

Good far

11

circulating pipe

PVC

6.0mm/1.6mpa

Joint plastic

12

circulating water pump

cast steel

2.2 kw

Source

13

Scattered heat fan

cast steel

0.75kw

Good far

14

NMP waste liquid storage

fluid reservoir

201 Stainless steel

900*2000

QR self-control

15

running piping

Aluminum plastic pipe

d20mm

Zeke pipe industry

16

infusion pump

magnetic drive pump

0.5 kw*2

/

 

VIII.Equipment size

name

size

Full load quality

The NMP recovery system host

Approximately: long 2900 wide 1650 high 1750

1.2T

Cooling water tower

1895*1600

0.3T

spray tower

H2200*φ1000

0.6T

fluid reservoir

φ1000*2000

0.8T

 

 

IX. Control box configuration

Number

name

model

quantity

1

air switch

4P/60A

One

2

single pole switch

1P/10A

Two

3

frequency transformer

3KW

One

4

AC contactor

1210.2510

Five

5

thermal overload relay

4A/13A

Four

6

pilot lamp

Red, green

Two

7

change-over switch

NP2

Two

8

fuse

6A

A set

9

Time broken electrical appliances

40n

One

10

thermostat

18/H

Two

11

alarm lamp

A d16-22sm

One

12

Control the electric box

300*200*150  600*500*200

Each 1

 

X.Process characteristics of the spray tower

1. All-stainless steel spray tower ensures the NMP exhaust emission standard, and can ensure the normal, stable and long-term operation of the spray tower.According to the successful experience of our company, the power cord of the spray tower and NMP recovery device is incorporated into the same control box, simple operation and management, easy to use, and prevent the failure to open the spray tower.

2. Improved the stability and safety of the recovery device and the cooling system.

3. Each set of recovery device and spray tower is linked with the coating machine. The applicator opens the recovery device and the spray tower by itself, which can ensure the safe production and smooth operation of the applicator and recovery device.

4. Emission standards can meet customer requirements.

5. The power of each tower is about 1.5kw.









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