Improved structure of sintered desulfurization tower and method of online visual treatment of tower wall fouling
The technology of desulfurization tower and tower wall is applied in the field of online visual treatment of fouling on the tower wall of sintering desulfurization tower, which can solve the problems affecting the stable operation of sintering desulfurization production and increase labor, so as to ensure the effect of flue gas desulfurization and reduce operating costs. , to ensure the effect of normal and stable operation
Active Publication Date: 2018-03-13
TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD
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Problems solved by technology
Seriously affect the stable operation of sintering desulfurization production and increase labor
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[0018] In order to further understand the invention content, characteristics and effects of the invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0019] see figure 1 with figure 2 As we all know, the desulfurization tower 7 includes a solid particle material layer 7-1 in the tower, an atomized water spray gun 7-2, an inlet of slaked lime 7-3 and a flue gas inlet 7-4. The present invention relates to an improvement of a sintered desulfurization tower Structure, the desulfurization tower is arranged on the atomization spray gun 7-2 on the desulfurization tower along the circumferential direction, 1m-1.5m above the position of the atomization water spray gun, 3-10 are arranged along the circumference of the desulfurization tower, and the diameter It is an observation hole 7-5 of 100mm-150mm; the total area of the above-mentioned observation holes is less than 10% of the circular cross-section...
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Abstract
The invention relates to an improved structure of a sintered desulfurization tower. An observation hole is arranged along the circumference of the desulfurization tower at 1m-1.5m above the position of the atomizing water spray gun; 10%. Utilize the above-mentioned sintered desulfurization tower treatment fouling method, when the thickness of the fouling is greater than 60mm, by increasing the supply of lime, increase the concentration of solid particles in the tower to increase the pressure difference of the solid particles in the desulfurization tower along the bottom and top of the bed (3) When the thickness of the scale is less than 60mm, the temperature of the inlet flue gas is increased to force the shedding; (4) When the scale area is less than 30% of the circumferential area of the tower wall, the normal process is restored Parameter control range. The invention can dynamically understand the scaling situation of the tower wall, and carry out different treatment methods according to the scaling situation, so as to prevent further expansion of the fouling degree of the tower wall plate. Avoid excessive scaling on the tower wall, causing a large area of hardened material to fall off at one time, causing troubles for stable production and manual processing.
Description
technical field [0001] The invention belongs to the technical field of desulfurization tower wall fouling treatment, and in particular relates to an online visual treatment method for sintering desulfurization tower wall fouling. Background technique [0002] At present, in iron and steel enterprises, SO in the sintering process 2 Emissions of iron and steel enterprises accounted for SO 2 About 60% of the total emissions. The Ministry of Environmental Protection requires that all sintering machines and pellet production equipment located in urban built-up areas implement flue gas desulfurization during the "Twelfth Five-Year Plan" period, and the desulfurization rate should reach more than 90%. 2 Emission concentration should be less than 200mg / m 3 . [0003] The main features of the circulating fluidized bed semi-dry desulfurization process are: the equipment occupies a small area, can effectively use the site and space of the original process system, and the investment...
Claims
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IPC IPC(8): B01D53/83B01D53/50
Inventor 孙海宁刘大为张志伟
Owner TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD