
Product Profile
The blast furnace produces a large amount of high temperature gas containing CO and dust during the smelting process. If it is not recycled, it pollutes the environment and wastes energy. In the early days of blast furnace gas treatment, cleaning dust was mainly used by washing methods such as the scrubber tower and the Venturi tube. However, the system of this method is complex in equipment, consumes a large amount of water, and has disadvantages such as secondary pollution, serious corrosion of washing equipment, and water in the gas, which hinders the application of the wet cleaning process. Dry pulse blast gas dust collectors are based on the long bag and the low voltage pulse dust collector, combined with the characteristics of the blast furnace gas, the necessary safety measures such as pressure resistance and explosion resistance have been taken on the dust collector. At the same time, the gas pulse cleaning source makes the necessary dehydration and dehydration, control technology using PLC microcomputer, this makes it high dust removal efficiency, good safety performance, convenient operation and maintenance, and a small area.
The dry blast gas pulse dust collector combines the advantages of the two types of backflowed dust collector and pulse ash cleaning, overcomes the disadvantages of the backflowed cleaning strength in the chamber and the overall pulse dust removal and re-adhesion, thus improving ash cleaning efficiency and injection frequency. Significantly reduced. The dust collector uses a flooded pulse valve to reduce the pressure of the injection source. Therefore, the energy consumption in the operation of the equipment is low, the service life of the filter bag and pulse valve is increased, and the comprehensive technical performance is greatly improved.
Working principle
The blast gas dry dust collector uses self-contained ash cleaning in individual rooms, and the dust filter bag is evenly distributed in each chamber and each group. With the continuous filtration process, the accumulation of dust on the outer layer of the filter bag is gradually increased, which increases the dust removal resistance. When the resistance rises to a given range, the ash control system (PC) sends a signal. First close the switching valve and open the pulse valve. The compressed air atomizes the airflow through the nozzle into each filter bag, so that the filter bag is deformed and shaking the soul to achieve the purpose of removing the ash. After the ash is removed, the switching throttle valve is re-opened and the dust collector re-enters the filtration state without interfering with each other, allowing for long continuous operation and improving the ash cleaning effect. Because of the high filtration speed, small size and convenient operation.
Features of the process
1. Pressure resistant round cylinder to withstand high pressure of 0.1MPa. An explosion-proof valve is installed in the upper part, and an ash storage hopper is provided under the ash discharge device, which has good safe sealing characteristics;
2, ash cleaning mechanism equipment (pulse valve, exhaust valve, ash return equipment, etc. D.) Adopt PLC control, with synchronization (fixed resistance) and manual control method;
3. Pulse ash removal, pressurized gas uses inert gas (nitrogen) or pure gas under pressure;
4. Long woven bag low pressure pulse. Compact structure, high strength, rigidity, good sealing, good ash cleaning effect, convenient operation and maintenance, safe and reliable operation;
5. Modular design, can be used in several units.
Keywords:
Environmental
Dust Bag

Blast Gas Pulse Dust Collector
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