sodium bicarbonate(baking soda) Applicable industry: steel, coking industry, gas boiler tail gas treatment, suitable for the sulfur content of less than 1000mg/Nm3 project, the best reaction flue gas temperature is about 200℃.
The process flow
Desulfurizer in temporary storage bin, material through the feed valve evenly into the grinding machine, grinding machine grinding disc and classification in the electric motor driven at high speed, NaHCO3 materials received after the high-speed rotating grinding disc impact crushing, conform to the requirements of the material feed grade wheel into injection system, large particles through the characteristics of air flow guiding role again back into the grinding zone, Until the particle size meets the design requirements.
2. Desulfurization reaction system, in the dust collector before the flue through the transport fan into the sodium-based powder, sodium powder activated under the action of high temperature flue gas, flue gas and activated sodium powder full contact chemical reaction, SO2 and other acid medium in the flue gas is absorbed and purified.
3. The desulfurizer adopts imported desulfurizer. The desulfurizer is used once and does not need to be recycled. The injection amount of desulfurizer NaHCO3 and SO2 is in accordance with a certain molar ratio, and the injection amount can be adjusted according to the concentration of SO2 at the outlet.
4. The desulfurization reaction system has the function of online automatic adjustment, which can adjust the injection amount of NaHCO3 powder according to the import and export SO2 concentration.
5. The desulfurization ash generated by the desulfurization reaction is filtered and collected by the cloth bag of the dust removal and denitrification integrated device. The collected desulfurization ash is transported by air and pumped to the desulfurization ash bin through the lower bin of the ash bucket of the integrated device. The ash conveying system adopts pneumatic conveying device.
The super fine soda used in malan desulfurization is specially designed for this project. It is fine, white and has good desulfurization effect. It is well received by the vast number of desulfurization users. SDS sodium dry desulphurization is a desulphurization process using sodium powder, namely baking soda powder, as a desulfurizer. The desulfurizer is directly sprayed with flue gas after grinding, and the flue gas containing sulfur is absorbed after reaction to achieve the purpose of flue gas purification. This kind of desulfurization process has been widely used in various industrial flue gas purification treatment, the whole dry process, can effectively avoid the wet desulfurization process is easy to produce flue gas tail, corrosion and other disadvantages. The whole process saves the complex construction of desulfurization tower, saves the area, and is simple and convenient to operate, which has been recognized by many owners.
Post time: Aug-09-2021