Energy-saving environment-friendly efficient sintering desulfurization white-smoke-removing system as well as technological process thereof

Abstract

The invention discloses an energy-saving environment-friendly efficient sintering desulfurization white-smoke-removing system as well as a technological process thereof, and aims to mainly solve the problems of the existing method for treating 'white smoke', the energy consumption is high, energy is not saved, the emission is not reduced and the like. The energy-saving environment-friendly efficient sintering desulfurization white-smoke-removing system comprises a fan, a desulfurization tower, a heat exchanger, a residual heat refrigerating system, a deduster, an absorption device, a draught fan, a deep refrigerator, a desulfurization chimney and a sewage tank, wherein the fan and the desulfurization tower are connected through a pipeline; the heat exchanger is connected with the pipeline between the fan and the desulfurization tower through a first flue gas pipeline; the residual heat refrigerating system and the deduster are respectively connected with the heat exchanger; the absorption device is connected with an outlet of the deduster; the draught fan is used for guiding flue gas exhausted from the absorption device; the deep refrigerator is connected with the draught fan; the desulfurization chimney is connected with the deep refrigerator and is used for exhausting flue gas to the atmosphere; the sewage tank is used for storing moisture and residue which are removed by the deduster and the absorption device, the residual heat refrigerating system is connected with the deep refrigerator through a cold water circulation pipeline. According to the system and the technological process, advanced residual heat recovery technologies and residual heat refrigerating technologies are adopted, so that the energy consumption is reduced; energy is saved, and the emission is reduced.

Description

technical field [0001] The invention belongs to the technical field of energy saving and emission reduction, and specifically relates to an energy-saving and environment-friendly high-efficiency sintering desulfurization and white smoke removal system and its process flow. Background technique [0002] With the rapid development of my country's economy, the relative shortage of energy and resources has become the bottleneck of economic development. How to make reasonable use of existing precious resources is the key to ensure the sustainable development of my country's economy. For this reason, the State Council pointed out in the "Comprehensive Work Plan for Energy Conservation and Emission Reduction" that by 2015, China's GDP energy consumption will drop from 1.22 tons of standard coal in 2010 to below 1 ton of standard coal, a reduction of about 25%; Water consumption for industrial added value is reduced by 30%; the total discharge of major pollutants is reduced by 10%. ...

AI Technical Summary

Problems solved by technology

Among them, the dry dehumidification technology requires repeated heating of the dehumidification equipment, which has high energy consumption. The purpose of dehumidification and treatment is achieved through high energy consumption, and there is no waste heat recovery process in the treatment process, which wastes heat energy resources and does not meet the requirements of energy conservation. ; Freezing and dehumidification technology requires the application of large-scale refrigeration equipment. Due to the large amount of "white smoke", the cold water consumption of large-scale refrigeration equipment is high, and there is no waste heat recovery process in the treatment process, which does not meet the requirements of energy saving and water conservation. ; Filtration and dehumidification technology needs to replace the filter equipment at any time, the area of ​​the filter is too large, the consumption is high, there is no heat recovery, and it does not meet the requirements of energy saving

[0004] In summary, in the prior art, the "white smoke" treatment process has the defects of high energy consumption and no waste heat recovery

Images