FRP desulfurization tower series
Flue gas desulfurization tower
The FRP flue gas desulfurization tower adopts the principles of inertial collision, condensation, and centrifugal force. Under the power of the induced draft fan, the flue gas falls from a certain height, hits the liquid surface at high speed, and forms water mist. Most of the particles sink into the water and are diverted in the dust collector. Under the action of the atomizer, the atomized air flow rises rapidly, and the droplets further collide and condense to form a water-ash mixture. The water-ash mixture is separated by steam and water through a cyclone impeller, thereby completely achieving its desulfurization—dust removal—dehydration effect. Structural principle of boiler glass fiber reinforced plastic flue gas desulfurization tower: The flue gas containing soot and sulfur oxides enters the cylinder through the inlet flue, and the alkaline absorption liquid containing [OH-] ions is separately from the upper and lower parts of the filter bubble desulfurization tower by spiral nozzles. It sprays out to form multiple rows of high-speed atomized water curtains that are opposite to the smoke, which increases the probability of collision of soot, sulfur oxides and water, and makes full use of the speed of atomized droplets to create a high gas-liquid relative velocity. To ensure the dust removal and desulfurization effect of the dust collector. At the same time, when the gas passes through the sieve plate, it produces a bubbling effect on the liquid layer on the sieve plate, which increases the surface area and turbulence of gas-liquid mass transfer, increases the mass transfer rate, and causes gas-liquid mass transfer between sulfur dioxide and alkaline solution, thereby further improving The effect of desulfurization and dust collector. The desulfurization product flows with the water to the bottom of the desulfurization tower and is drained from the overflow hole. A water seal groove is provided at the bottom of the cylinder to prevent leakage of flue gas from the bottom. A cleaning hole is also provided to facilitate the manual cleaning of the ash at the bottom of the cylinder (also Can be automatically cleaned). The desulfurization wastewater is discharged into the sedimentation tank through the bottom overflow hole, and the precipitate is neutralized and regenerated, and recycled (double alkali method). The purified gas is discharged through the upper part of the cylinder through the demister, thereby achieving the purpose of dust removal and desulfurization.
Most of the equipment for desulfurization of industrial waste gas is tower equipment, which is the desulfurization tower. The desulfurization tower was originally the most widely used for granite masonry. It uses the principle of water film desulfurization and dust removal, also known as granite water film desulfurization dust collector, or hemp water film desulfurization dust collector. The advantage is that it is easy to maintain, and it can achieve the effects of dust removal and desulfurization (denitrogenation) by formulating different dust removal agents. Now with the development of FRP technology, desulfurization towers are gradually made of FRP. Compared with granite desulfurization towers, glass fiber reinforced plastic desulfurization towers have low cost, easy processing, no rust and rot, and light weight, so they have become the development trend of future desulfurization towers. In addition, 316L stainless steel has three advantages: corrosion resistance, high temperature resistance, and wear resistance. It is also one of the important trends in the development of desulfurization towers. After years of improvement, it has developed into various types of desulfurization towers such as Venturi type, swirl plate type, swirl column type, floating ball type, sieve plate type, and pneumatic emulsification type. The equipment technology has become increasingly mature, each with its own advantages and Insufficient, enterprises can choose different types according to their own needs.
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