Desulfurization and dust removal are generally wet desulfurization and dust removal. Wet desulfurization and dust removal include water film desulfurization and dust removal, and impact water bath desulfurization and dust removal.
Desulfurization dust collector working principle
Desulfurization is a technology to control the emission of sulfur dioxide. The dust collector can not only remove sulfur dioxide in the flue gas, but also produce high-value-added sulfuric acid ammonia fertilizer products. The boiler dust removal equipment uses ammonia water of a certain concentration (here, 28% is taken as an example) as a desulfurizing agent, and the generated ammonia sulfate slurry is sent to a fertilizer plant processing system. The amount of ammonia water used in the desulfurization process is automatically adjusted by a preset pH control valve and measured by a flow meter. Ammonia sulfate crystals are crystallized from a saturated ammonia sulfate slurry in a desulfurization and dust collector to generate suspended particles with a weight ratio of about 35%. These slurries are pumped to the treatment site, after primary and secondary dehydration, and then sent to a fertilizer plant for further dehydration, drying, condensation, and storage. At the same time as the flue gas is desulfurized by the boiler dust removal equipment, the boiler dust collector also generates considerable By-products to achieve certain economic benefits.
Desulfurization dust collector features
(1) Washing type working principle, high efficiency of dust removal and desulfurization, trapping many harmful gases.
BYJ flue gas purifier integrates desulfurization and dust removal. It is a spray method with unique nozzle design. The glass fiber reinforced plastic spiral nozzle made by American technology sprays dense layers of water mist, dust and harmful gases and water mist under a certain water supply pressure. Full contact, so the effect of dust removal, desulfurization, nitrogen removal and carbon black washing is greatly improved compared with other wet dust collectors. The dust removal rate is ≥98%, the sulfur dioxide removal rate is ≥85%, and the Lingerman blackness of the flue gas is <1 level.
(2) The design of the dewatering plate is reasonable and unique, and the dewatering effect is good. There is a dewatering device in the cylinder. The design of the dewatering plate is reasonable and unique. When the mist passes through the dehydration device, it will be intercepted and changed by the collision. It will flow down the cylinder wall to prevent secondary water carrying and high dehydration efficiency.
(3) Low resistance, water saving, power saving, and low running cost.
The flue gas is naturally introduced from the lower part of the cylinder, the cross section is large, and the wind speed is small, so the flue gas resistance is small, the main body resistance is ≤900Pa, and the system resistance is ≤1200Pa. Because the resistance is small, the power consumption is also small. In addition, the discharged water is precipitated and closed for recycling, on the one hand, it saves water resources, and on the other hand prevents sewage from flowing into the sewer, causing secondary pollution, achieving water and electricity saving effects, and reducing operating costs.
(4) Small size, light weight, small footprint, convenient installation and transportation.
The cylindrical body of this product is an integral structure. It comes with a stand when it leaves the factory. It is very convenient to install and move. It can be installed in various ways such as left and right hanging and overhead laying according to the size of the ground. It has strong adaptability.
(5) The operation is relatively simple and convenient, with minimal maintenance, easy operation, management, and maintenance, high operation rate, and adaptability to different working environments.
(6) Strong adaptability to fluctuations of SO2 concentration in flue gas, different desulfurization processes can adapt to different sulfur contents in coal; desulfurizers can be selected from various forms such as lime, alkali, magnesium oxide, etc., and can achieve good desulfurization results .