How to have off-gas treatment of industry of electronic industry soldering tin?

Electronic industry processes a kind of exists generally flue gas in producing a course, this kind of flue gas is to be in component and printed circuit solder dish of the generation in soldering together to fashion connective process, although the chroma of solder smoke is not very tall, but it is very big to human body harm, polluted an environment badly also, the ability after accordingly need is purified is discharged. So, if why electronic factory handles waste gas of soldering tin industry?

At present commonly used soldering tin processing technique has filter adsorption is purified law, electrostatic purify law and microtherm plasma law

　　1, filter adsorption purifies a method

Filter the fabric of composite material of organic high polymer that purifying device of adsorptive type flue gas can collect appliance to have property of high oil absorption or felt, inorganic filter expects, OK and perpendicular or filter makings is parallel at flue gas direction of going from place to place is installed, purify efficiency to need to achieve 80% above.

　 2, electrostatic purify a method

Electrostatic and deposit law is in introducing lampblack high-pressured electric field, make the grain in lampblack and fire flue gas electrified, deposit moves to dust collection electrode below the action in electric field force. Purify efficiency to be able to amount to 85% above normally, pressure fall small.

　　 3, microtherm plasma law

Microtherm plasma the principle of the law is to using maximum pressure electrostatic law while, plasma field is built in the front of electrostatic field, those who use its energy to arouse is many grain of cigarette ash of freedom radical degradation, reduce its viscosity. In plasma generation process, the instantaneous energy that high frequency discharge produces can open the chemical bond of harmful gas, decompose them elemental atom or harmless element. This technology is current the processing technology of the lampblack on the market and flue gas, purify rate can amount to 90% above, the gas after processing is achieved discharge a standard, safeguard convenient.