Complaint
| Item | Unit | Specification |
| 1)Exhaust air volume | m3/h | 50000(Exhaust air volume of coater) |
| 2)Air outlet temperature | ºC | 120ºC |
| 3) NMP consumption | kg/h | Above 45 |
| 2,NMP Technical requirements for recycling | ||
| 1)rate of recovery | ≥95% | |
| 2) Recovery concentration | ≥80% | |
| 3) NMP exhaust emission concentration after recovery | PPM | Below 200 |
| 3,Material of auxiliary facilities | ||
| 1)Ventilation duct | White iron pipe 300mmx300mmx0.0.6mm |
| SN | Item | Specification |
| 1 | Energy saving performance | Use tube fin heat exchanger to save energy consumption. |
| 2 | Sealing performance | All connections in the unit are sealed with high-temperature silica gel and high-temperature glue. The air leakage rate at the connection of each functional section is less than 0.5%. |
| 3 | Linkage performance | Linked with the coater separately, the unit can operate under the best working conditions, and the recovered NMP concentration is more stable. |
| 4 | Others | After the equipment stops running, NMP cannot flow back to the air inlet pipe, and when the NMP recovery system fails, it will not affect the use of the coater. |
| SN | Organization name | Part name | Material | Specification | Manufacturer |
| 1 | Cooling solvent recovery section (condenser) | Cooling coil 1 | Aluminum wing & copper tube | XYZ-500-6 | TMAX |
| 2 | Cooling coil 2 | Aluminum wing & copper tube | XYZ-500-8 | TMAX | |
| 3 | TMAX | ||||
| 4 | TMAX | ||||
| 5 | Liquid blocking plate | Corrosion resistant stainless steel | TMAX | ||
| 6 | Effusion disk | Corrosion resistant stainless steel | TMAX | ||
| 7 | Recovery tank | Corrosion resistant stainless steel | TMAX | ||
| 8 | Liquid level pump | Anticorrosive materials | Xiaoyezi | ||
| 9 | Forced draft fan section | Manual air valve | Anticorrosive materials | Xiaoyezi | |
| 10 | Centrifugal fan | Anticorrosive materials | 7KW | Xinfeng | |
| 11 | Water cooling circulation section | cooling tower | 20T | Liangyuan | |
| 12 | water circulating pump | 2P | Chinese Trumpet Vine | ||
| 13 |
5,Electrical design
5.1 electrical part (function and implementation mode)
Schneider air switch, AC contactor and thermal relay are adopted; Electric regulating air valve; Chint phase sequence protection relay and time relay.
5.2 Safety Control
(1) Design automatic control system and interlocking system, equipped with temperature alarm.
(2) NMP waste liquid transmission adopts the intelligent mode of liquid level detection and alarm. The liquid storage tank is placed on the roof, and the anti-corrosion aluminum-plastic pipe is connected to the place designated by the customer. The liquid level detection is used in the liquid storage tank, and the alarm is realized when the liquid level reaches the specified height. The alarm small electric box device is placed at the head position of the coater and the waste liquid filling position respectively, and then the waste liquid on the roof is transported to the downstairs filling barrel through the manual valve at the filling position.
