Besmear installs a workshop to have method of machine industry off-gas treatment and technology

When we are undertaking industrial besmear is installed, need uses all sorts of organic chemistry medicines and chemical reagents and metal to eletroplate craft, because this often also can produce many volatile organic waste gas, produce huge to endanger to producing personnel. So, hold workshop waste gas in the light of besmear, how should be we handled? Environmental protection manufacturer makes detailed introduction for you.

One, the waste gas composition of besmear outfit workshop:

Want to know how to handle besmear to hold organic waste gas, we are about to understand it first. Generally speaking, besmear outfit waste gas basically includes acid of ester of acerbity second of toluene, acetone, Ding Chun, xylene, second, second the volatile organic gas that the organic compound such as fourth ester is aimed at afore-mentioned types. Hold organic waste gas in the light of besmear, we often can use the following craft and equipment to undertake handling.

2, the waste gas of besmear outfit workshop administers a method:

Have to besmearing the processing technique that holds workshop waste gas is commonly: Adsorptive law, absorb law, combustion law, catalytic oxidation law, plasma to purify law and condensation absorption method. The besmear that environmental protection company uses installs a workshop to have method of machine industry off-gas treatment, it is according to the client the spot undertakes designing, include how to be collected, the fan of quantity of choice much gale, much great wind pressure and equipment of organic industry off-gas treatment.

3, the waste gas of besmear outfit workshop administers – equipment of activated carbon adsorption:

1, equipment of activated carbon adsorption is first-rate to the processing effect of volatile organic gas, its purifying rate can be achieved 98% . Its craft principle is as follows: Besmear holds waste gas through filtering the system filters big grain material, in making reach adsorptive case desertedly next. The activated carbon in adsorptive box will be adsorptive the much in dropping waste gas is harmful gas. The gas after adsorption is in equipment of course catalytic combustion, rising inferiorly light temperature condition to allot the unripe combustion that do not have blaze, oxidize decompose for CO2 and H2O, emit a large number of quantity of heat at the same time.

2, law of hot air second birth still can be used to undertake desorption after activated carbon is adsorptive. Hot air second birth is inferior to the requirement of adsorptive system material, use hot air to undertake desorption to the toluene of adsorption of activated carbon fiber, appropriate desorption craft condition is temperature 180 ℃ , desorption time 40min, 0.106m/s; of desorption air velocity of flow heats up air desorption specific power consumption to undertake an analysis through building demonstrative project to be opposite, if use vapour to be,the result makes clear hot air desorption when adding heat source, every reclaim 1kg dissolvent needs electric 0.5kWh and 1.6kg vapour about, be less than general vapour to heat directly reclaim the dosage of steam of 2 ～ 5kg in the system, hot nitrogen desorption is a kind of efficient method, 30min of 140 ℃ desorption, nitrogen discharge is 2.6m3/h, desorption rate is 90% the left and right sides.

4, the waste gas of besmear outfit workshop administers – UV light sees purifying device:

Purifying device of waste gas of oxidation of UV light solution uses ultraviolet ray of rice of high strenth accept to destroy, decompose macromolecule catenary to be young member catenary, recycle ozone with alkyl freedom radical, activator undertakes catalysis oxidizes, make organic matter turns into carbon dioxide and water.

(1) destroys splitting decomposition phase: Use tailor-made high strength light is in charge of accept rice ultraviolet ray to produce high-energy C wave band inside processing unit (253.7 wave band) ultraviolet ray, destroy destroy, splitting decomposition catenary of organic matter element, change corporeal structure, make macromolecule material splitting decomposition, oxidation small element material or harmless material, be like water, carbon dioxide.

(Phase of 2) catalysis oxidation: Use ultraviolet ray of rice of high strenth accept smooth canal produces high-energy C wave band inside processing unit (185 wave band) ultraviolet ray, the oxygen element in dissoluble air produces light beam of ultraviolet ray of this wave band the active oxygen of free, free oxygen is not stabilized because of electronic condition produce ozone extremely easily with oxygen element union. Ozone has extremely strong oxidation to organic matter, but the key of element of body of splitting decomposition evil bad smell, DNA that destroys a bacterium, achieve the goal with antiseptic deodorization.

5, the waste gas of besmear outfit workshop administers – zeolite runner is adsorptive + incinerator of type of accumulation of heat:

1, after the besmear that contains volatile organic substance installs waste gas to wait for pretreatment through the inhaler, repass hydrophoby zeolite condenses runner, the VOCs in waste gas can by effective adsorption in zeolite, achieve the goal of purify. After passing zeolite runner adsorption purify gas, in amounting to mark to discharge atmosphere through chimney directly.

2, zeolite condenses runner cent to be 3 areas: Adsorptive area, desorption area and cooling zone. The speed that zeolite runner turns with horary 1-6 rotates continuously, convey adsorptive volatile organic matter meanwhile the desorption area of runner. Small are used to increase steam put oneself in another’s position in desorption area (180-220 ℃ ) will volatile organic matter undertakes desorption. The zeolite runner after desorption rotates cooling zone, come via rotating after refrigeration desorption area, continuously adsorptive volatile organic gas.

3, the inspissation after desorption organic waste gas sends RTO combustion furnace to undertake burning, change into water and carbon dioxide back row to be put in atmosphere. The quantity of heat that uses hot exchange to produce combustion uses warm-up desorption to use gas, the warm-up before offerring waste gas to burn in combustion furnace, make the system achieves energy-saving effect.