Principle of work of catalytic combustion facility and equipment show spray paint house

Catalytic combustion equipment uses spray paint room extensively at the spray paint of the industry such as manufacturer of car, shipbuilding, autocycle, furniture, electric home appliances<gj, piano, steel structure, besmear holds a workshop or the organic waste gas of product line is purified, also can stick gum with shoemaking, imprint iron controls coal tub, chemical industry plastic, presswork the product line form a complete set such as printing ink, cable, enamel-insulated wire is used. Apply to processing normal temperature, large wind force, medium the organic waste gas that volatilizes low density, easily, can handle organic dissolvent sort to include benzene kind, ester kind, aldehyde kind, ether kind, alkyl kind reach its to mix kind. Apply to unfavorable and quantity of low density gale, direct combustion or catalytic combustion and adsorption reclaim the besmear outfit of processing, presswork, leather, plastic the organic waste gas that reachs chemical industry to the workshop volatilizes or be divulged.

Equipment uses desorption of activated carbon adsorption, hot air current and catalytic combustion craft of 3 kinds of combination purifies organic waste gas,

Measure one: Use activated carbon much smaller hole and massive exterior pulling force the organic dissolvent in waiting for character general waste gas is adsorptive, make what discharge waste gas to get depurative is working process;

Measure 2: After activated carbon adsorption is saturated, by condense to more organic than what get on adsorption in activated carbon dissolvent sheds emergence with steam and send toward catalytic combustion bed to be working process certainly;

Measure 3: After the Gao Nong that enters catalytic combustion bed spends organic waste gas to heat through taking a bit step, below the action of activator oxygen is decomposed, change into carbon dioxide and water, after cent explains the heat exchanger of classics of quantity of heat that give off reclaims, use at heating the Gao Nong that enters catalytic combustion bed spends organic waste gas to be process of the 3rd job, after afore-mentioned 3 jobs processes are running proper time to achieve a balance, desorption, catalysis decomposes a process need not adscititious the sources of energy heats. Adsorption of a complete set of and catalytic combustion process implement automation by PLC.

　　Composition of catalytic combustion equipment shows spray paint house:

Type of A, bag removes dust filter

VOCs waste gas is in charge of slow and even ground to enter every bag type to remove dust via collecting filter, 2 class filter grade is G4 class, F7 class respectively, main effect is the fine grained dust in purify waste gas (1 μ of φ ≧ M) , have filter area the characteristic that inferior, tall permeability and Gao Rongchen measure big, resistance, because the developed area of hop-pocket is large, cross wind speed to decelerate, the cotton fine that dust is expected by filter is caught, till sedimentation,come down air current direction bag of bottom, integrated purify rate can be amounted to 95% . Bag type filter and bed of activated carbon adsorption are man-to-man match, OK and ceaseless machine is changed filter bag.

Room of B, spray paint catalytic combustion equipment

(1) adsorptive: Activated carbon adsorption handles organic waste gas is the character that uses activated carbon small hole to be able to assimilate organic sex substance, the organic dissolvent adsorption in organic sex waste gas arrives in activated carbon and condense low density of large wind force, the gas after classics adsorption is purified amounts to mark direct platoon is empty. It is the process that the adsorption of a physics condenses character actually. Did not handle organic dissolvent.

(2) desorption: Use hot desorption method, when desorption, combustion heat electricity heats the canal heats air, next waft are driven to come in fan in activated carbon box, from inside activated carbon machine dissolvent desorption comes out, and come via condensing the waft of high concentration waste gas after in catalytic combustion bed. Below the action of activator, organic sex material is since the catalysis of 250 ℃ of ～ light chemistry of temperature low temperature to burn, because this is reliable.

Activated carbon is adsorptive, catalytic combustion desorption both advantage organic ground union rises. Use activated carbon to undertake adsorption condenses first, when activated carbon adsorption approachs saturation, use report to heat equipment of the catalytic combustion that start, use hot air to heat bed of activated carbon adsorption, when catalytic combustion reaction bed heats 250 ℃ of ～ , bed of activated carbon adsorption is local achieve 60 ～ when 100 ℃ , the high concentration waste gas that comes out from adsorptive bed desorption can be in catalysis undertakes microtherm oxidation reacts in reaction bed. The heat exchange of heat exchanger of classics of high temperature gas after reaction, one part is answered with send bed of activated carbon adsorption to undertake desorption, another part emits into atmosphere. The temperature after the heat exchange of heat exchanger of waste gas classics that desorption comes out rises quickly, reduced the starting electric power of catalytic combustion, thereby activation burner and desorption process achieve small-power to move.