1、 Manufacturers of desulfurization, denitrification and dust collectors explain the hazards of SO2; Manufacturers want to talk to everyone about the hazards of sulfur dioxide: SO2 is a gaseous pollutant with a high content and wide impact in the current air pollutants. SO2 in the atmosphere comes from a wide range of sources, and almost all industrial enterprises may produce it. It mainly comes from the combustion process of fossil fuels (coal, petroleum, and gas), as well as the roasting and smelting of sulfide ores. Thermal power plants, non-ferrous metal smelters, sulfuric acid plants, refineries, and industrial boilers, furnaces, etc. that use coal and oil all emit SO2 flue gas. About 90% of SO2 emissions come from fuel combustion processes, among which thermal power plants emit a large amount. SO2 is a colorless gas with a strong irritant odor, which has toxic effects on the respiratory organs of the human body. It can also invade the human body through the skin and pores, or enter the digestive tract through food and water, causing harm. 2、 When there is a large amount of water or dust in the gas passing through the muffler, do not choose a muffler with resistance. 2. When selecting mufflers for desulfurization, denitrification, and dust collectors, manufacturers should determine the required amount of noise reduction based on the characteristics of the fan, industrial enterprises, and the noise level of the environment. 3. When selecting a muffler with a fixed air volume for desulfurization, denitrification, and dust collector manufacturers, the actual air volume should not be lower than that of the suction fan. 4. The gas velocity passing through the muffler should generally be controlled within a range of 5-15m/s by manufacturers of desulfurization, denitrification, and dust collectors to avoid secondary noise. 5. When planning and manufacturing dust removal equipment, manufacturers should strive for a simple structure, low cost, small size, convenient installation, long service life, and minimal pressure loss during airflow. 3、 Basic principles for handling accidents involving desulfurization, denitrification, and dust collectors: 1. After the accident occurs, the operator should judge and handle the cause of the accident based on the abnormal condition of the desulfurization, denitrification, and dust collector and the changes in instrument data. Firstly, the threat to personnel and equipment caused by the accident should be considered. Secondly, the location of the accident should be restricted or prevented from expanding. 2. In the event of an accident with the desulfurization, denitrification, and dust collector, it is necessary to follow the instructions of the commanding personnel and lead the on duty operators to handle the accident according to the operating procedures. 3. On the basis of personnel and equipment, restore the normal operation of the desulfurization, denitrification, and dust collector as soon as possible. If the equipment cannot operate, stop continuing to operate the desulfurization, denitrification, and dust collector. 4. After the malfunction of the desulfurization and denitrification dust collector and during the troubleshooting process, the current on duty personnel cannot leave their work posts. They must provide the maintenance personnel with the operating status of the desulfurization and denitrification dust collector before and after the malfunction in a timely manner, and cooperate with the maintenance personnel to repair and handle the equipment. After the accident is resolved, the on duty personnel should promptly archive the cause of the malfunction and maintenance records, and submit them to their superiors for review. Afterwards, they should work with technical personnel to analyze and study the malfunction that occurred. 4、 The daily maintenance water for the desulfurization, denitrification, and dust collector enters the main cylinder from the upper water injection tank of the desulfurization, denitrification, and dust collector, forming a layer of water film on the inner wall of the entire main cylinder and flowing from top to bottom. The flue gas enters from the lower part of the cylinder tangentially, rotates and rises inside the cylinder, and the dust containing gas always rubs against the water film on the inner wall of the cylinder under the action of centrifugal force. In this way, the dust containing gas is wetted by the water film, and the dust particles flow with the water to the bottom of the dust collector and are discharged through the overflow hole. The bottom of the cylinder is sealed and equipped with a water seal groove to prevent the flue gas from leaking out from the bottom. There are cleaning holes for easy cleaning of the bottom of. After dust removal, the wastewater is discharged from the bottom overflow hole into the sedimentation tank, where it is neutralized and recycled. The purified gas is dehydrated through the upper conical part of the main cylinder and enters the secondary cylinder for settling, separation, and dehydration. The purified flue gas is discharged into the induced draft fan through the lower part of the secondary cylinder, completing the entire working process of the desulfurization, denitrification, and dust collector. 1. After shutdown, the desulfurization pump should be kept working for more than 1 hour to flush away any fine ash or sediment that may accumulate in the dust collector. Long term shutdown in winter, the accumulated water inside the dust collector should be drained to prevent freezing damage to the dust collector. The lime tank should be drained of accumulated liquid to prevent freezing and damage to the dissolution tank. 2. If there is enough time for each shutdown, it is recommended to open the manhole to check whether there is dust accumulation on each swirl plate. If there is, it should be washed clean with water in a timely manner. 3. Pay attention to whether the water source of each process is normal, maintain the water level of the circulating pool at the normal position, and control the circulating water volume during operation to avoid a decrease in desulfurization, denitrification, and dust removal efficiency or even affect the normal operation of the dust collector due to insufficient circulating water. Attention should be paid to the anti freezing work of circulating water tanks, water pumps, water pipes, and various branch pipes in winter. 4. When preparing lime slurry or alkaline solution, protective goggles and gloves should be worn according to regulations. If accidentally splashed into the eyes, rinse with clean water in a timely manner and seek medical attention. 5. During the maintenance and operation of the dust collector, it is not allowed to strike the dust collector body. For those who need to repair the granite body for maintenance other than dust removal, they can contact the manufacturer for handling. 6. When dissolving lime in winter, it should be heated or dissolved with steam as appropriate, and the water temperature should be kept above 20 ℃. 5、 The use and development of desulfurization, denitrification, and dust collectors in recent years have become increasingly threatening to people's living environment and health due to warming and worsening air pollution. Green and low-carbon environmental protection has become a widely discussed topic. China's energy structure is mainly based on coal, and its industrial structure is dominated by heavy industry. Industries such as electricity and machinery emit large amounts of nitrogen oxides and sulfur dioxide from boilers during operation, causing air pollution and acid rain, posing serious hazards to the health and living environment of local residents. China's desulfurization and denitrification technology started late and developed slowly, and many power plants have not installed desulfurization devices, still emitting pollutants into the atmosphere. With the increasing attention to environmental issues, strict environmental protection measures have been introduced one after another, and the development of desulfurization technology is imperative. At present, China has made significant achievements in desulfurization, denitrification, and dust collectors, and the technical process has also been greatly improved, mainly reflected in: the simplification of desulfurization, denitrification, and dust collectors, and the small equipment footprint; Low equipment investment cost and low infrastructure project expenses; The automation level of desulfurization equipment has been improved, operation has become more convenient, and management measures have been perfected.
