Fan gush drenchs tower off-gas treatment principle

Gush drenchs the tower is a kind of device that often uses in off-gas treatment process at present. Commonly used the processing that at eletroplating waste gas of waste gas, pickling hydrochloric acid, vulcanization hydrogen waste gas, 2 oxidation chloric waste gas, besmear installs workshop waste gas, besmear to hold line waste gas.

With all sorts of organic waste gas. The advantage of sparge tower is as follows:

1, craft is simple, cost is low, moving expense is little, installation is convenient, anti-corrosive. 2, performance is steady, remove dust efficiency is tall, desulphurization effect is good. 3. Service life is long, safeguard convenient, operation management is simple, without special technology requirement. 4. Adaptability is strong, special apply to water-solubility to contain dirt gas.5, choose extensive, applicable each wind force and each industry. 6, do not have a requirement to containing dirt gas.

The technical principle of exhaust sparge tower is as follows:

(1) draws the balance enraging fluid of the process

Aeriform contaminant draws depurative main facility is to absorb the syringe in tower, Wen Qiu, reactor bosomy bubble to wait. In absorbing unit, the gas mixture that recommends desulphurization to purify a tower to contain the contaminant A that can be absorbed and absorbefacient S are refluent (or direct current) contact, finish recruit a process, the gas that was purified (be not mixed to absorb fluid by deliquescent constituent B and the rest A) (contain A and S) , further processing is made besides eduction device respectively. Of gaseous contaminant purify efficiency and the structure that absorb unit, amiable fluid has property evenly very big concern. The direction that absorbs a process to undertake and limit depend on the solute gas in gas fluid two-phase fluid balance is relative. To any gas, below certain condition, dissolve in certain dissolvent when it when be being balanced in order to achieve, it is certain that the cent in gas phase is pressed, this calls balance cent to press, express with P* . In recruiting a process, industrial waste gas is administered, press P prep above when the actual cent of the solute in gas phase when its and the solute branch that fluid becomes a balance are pressed, namely when P>p* , solute is transferred to fluid photograph by gas phase, happened to recruit a process then.

(2) gush drenchs the tower absorbs the mechanism of the process

Recruiting a process is a kind of alternate with conducts qualitative process. Absorption interface passes qualitative mechanism to basically include double film theory, solute to permeate academic, surface to update trends of academic, interface to wait theoretically. These theory are applied at alternate with to pass the research of simple procedure and description, the influence that is like interfacial condition and water motivation element. Of different type absorb implement use different passing to pledge mechanism serves as respective theoretical model. But, spray waste gas administers equipment, calculate or solve other and real problem what still cannot undertake sending simple equipment accordingly at present.

(3) accompanies those who have chemical reaction to recruit a process

In liquid waste of a few soda acid, we can add a few specific reagent to promote the reaction of waste gas, reduce the contaminant in liquid waste. In absorbing an operation, have what important chemistry reacts to absorb a process to call chemistry to absorb. For example, the aqueous solution that waits with Naoh, Na2c03 or Nh3oh absorbs Co2, So2 or H2s to wait, all belong to chemistry to absorb. Gush drenchs, bath, after absorbing sparge tower, through centrifugal fan club material processing pollutes exhaust emission infirmly, higher to craft requirement technology still can add light to understand the technology such as adsorption of processing, activated carbon or catalytic combustion.