Melt blown cloth electrostatic electret generato

  Shanghai Lishan esd-rpb melt blown cloth special electrostatic electret is a high voltage electrostatic discharge application equipment
The electrostatic generator is composed of an electrostatic emitter (rod) and a DC high-voltage power supply
The DC high-voltage power supply provides the negative (or positive) high voltage of the ion emitter (rod), which makes the ion emitter (rod) emit negative ions (or positive ions), and then makes the object (workpiece) charged (artificially charged)
The higher the voltage, the greater the effective range
It is widely used in non-woven fabrics, printing, film coating, painting, flocking, sorting and bioengineering
The utility model has the characteristics of small volume, simple installation and stable operation

Function introduction:
Because the filtration efficiency of ordinary melt blown non-woven fabric is less than 70%, it is not enough to rely solely on the mechanical blocking effect of the three-dimensional aggregate of fibers with fine fiber, small gap and high porosity of melt blown microfiber
Therefore, melt blown filter materials generally add electrostatic charge effect to the melt blown fabric through electrostatic electret process, and use electrostatic method to improve the filtration efficiency, so that the filtration efficiency can reach 99
9%, A very thin layer can meet the expected standard, and the respiratory resistance is still small

At present, the electrostatic electret methods mainly include electrospinning method, needle discharge method, friction electrification method, thermal polarization method, low-energy electron beam bombardment method, etc
among them, needle discharge method is the best electrostatic electret method at present
Needle discharge method is to charge the melt blown material by one or more groups of corona discharge of needle electrodes of electrostatic generator (voltage is generally 5-50kv) before winding
When high voltage is applied, the air under the needle tip will produce corona ionization and partial breakdown discharge
The current carriers will be deposited on the surface of melt blown cloth under the action of electric field, and some carriers will go deep into the surface and be captured by the trap of electret masterbatch, Thus, the melt blown cloth becomes an electret filter material

Increasing the charge on the surface of melt blown cloth can be obtained by corona discharge electret treatment process, but in order to make this electrostatic storage not attenuate, it is necessary that the composition and structure of melt blown electret material are conducive to charge retention
The way to improve the charge storage capacity of electret materials can produce charge traps and capture charges by introducing additives with charge storage properties
Therefore, compared with the ordinary melt blown production line, the melt blown production line for producing air filter materials needs to add a high-voltage electrostatic discharge device in the production line, and the electret masterbatch, such as tourmaline particles, needs to be added to the production raw material polypropylene (PP)

Technical parameters:
1
High voltage generator:
• Input voltage: 220VAC / 50Hz (120V / 60Hz can be customized)
• Output voltage:
• Output current: && le; 6mA； Maximum power consumption: 40W
• Ambient temperature: 0-40 ℃
• Polarity: positive / negative pole is customized according to customer needs
• High voltage output interface: esd-rpb30kv: 2; Esd-rpb50kv: 1
• Size: ESD-RPB30KV：330*225*130mm； ESD-RPB50KV：325*285*155mm
2
Electrostatic emission rod: fireproof flower design and current limiting design to fully ensure the stability of output

output voltage
ESD-RPB30KV: 0-30KV； ESD-RPB50KV: 0-50KV
cable length
standard 1m, can be customized as required, equipped with silicone protective cover
installation
adjustable mounting chute is equipped with M6 * 30 plastic screws for fixing
shell material
PVC
weight
1
3kg/m
ambient temperature
0~50℃