Novel desulfurization method

Abstract

The invention provides a novel desulfurization method. The novel desulfurization method comprises the steps: (1) increasing desulfurization reaction time; (2) increasing a desulfurizing agent; (3) enhancing a flue gas contact face. The step (1) is implemented through a novel desulfurization device, wherein the device comprises a desulfurizer, a smoke inlet pipeline of the desulfurizer is additionally provided with a desulfurization agent spraying system, and the desulfurization agent spraying system is arranged at the front end of the smoke inlet pipeline; the spraying system comprises a plurality of spraying pipes which are connected with a circulating water tank with a water replenishing pipe through a pipeline, and the desulfurizer is provided with a draining hole; the draining hole is formed in the bottom of the desulfurizer and communicates with the circulating water tank; the circulating water tank is connected with a dosing cylinder through a pipeline; a desulfurizing agent is added into the dosing cylinder; the weight percent of the desulfurizing agent to water is 1:10; the dosing cylinder is connected with a stirring tank arranged above the circulating water tank through a pipeline; the draining hole formed in the bottom of the desulfurizer communicates with the circulating water tank; the smoke inlet pipeline has the length of 3 to 8 meters. According to the method, the effect of flue gas desulfurization is improved, the cost is reduced, the emission of harmful gases is reduced, and the environment is protected, so that the method is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a desulfurization method for sulfur-containing flue gas, in particular to a novel desulfurization method. Background technique [0002] In the building ceramics and cement firing industries, a large amount of coal or coal products (coal water slurry, water gas, coal powder, etc.) is consumed, which produces a large amount of sulfur-containing waste gas and causes environmental pollution. According to national requirements, the corresponding exhaust gas needs to be desulfurized and discharged only after reaching the standard. The traditional wet desulfurization tower only performs desulfurization reaction in the desulfurization tower, and the reaction time is short and the reaction is not sufficient. [0003] In the prior art, there is a flue gas desulfurization tower for a kiln. The flue gas desulfurization tower for a kiln includes a tower body, a spray device, a carbonization layer, a demisting device and a liquid recovery de...

AI Technical Summary

Problems solved by technology

[0004] Using the flue gas desulfurization tower for the above kiln to desulfurize, the process is too complicated, the process settings are complicated, the energy consumption is large, the raw material consumption is large, the desulfurization effect is not ideal, the maintenance is difficult, and it does not meet the requirements of today's society.

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