1, bag dust removal
During the filtration process of SL bag filter, the dusty flue gas in the inlet flue enters each filtering chamber through the primary deflector, and then passes through the filter bag smoothly and slowly through the secondary deflector in the filtering chamber, and the dust is covered.
The gas is blocked on the outer surface of the filter bag, passes through the clean room and is collected in the outlet flue, and then discharged. When the dust accumulated on the outer surface of the filter bag reaches a certain level, the pulse blowing valve automatically opens, the filter bag vibrates and deforms under the action of pulse compressed air, and the dust is separated from the surface of the filter bag.
SL bag filter belongs to line jet pulse bag filter. Each filter bag corresponds to a specific nozzle, and the size of the nozzle is carefully designed to ensure that the filter bags in different positions are affected by
The same blowing force. There are no moving parts inside, and the reliability of the equipment is better than that of the rotary jet dust collector.
Air distribution and dust removal of bag filter are its core technologies. In SL bag filter, the primary deflector in the flue plays the role of distributing airflow and balancing the flue gas flow in each filter room, and at the same time can reduce the resistance loss caused by the change of airflow formula. The secondary deflector can not only avoid the high-speed airflow scouring the filter cloth, but also play the role of pre-dust removal. In addition, it is particularly important that through secondary diversion, an airflow velocity component in the same direction as the dust settling direction can be generated in the filter chamber, so that the phenomenon of "secondary adsorption" of dust generated by dust cleaning can be avoided to the greatest extent. The technology of secondary flue gas distribution is an important symbol that distinguishes SL bag dust collector from other dust collectors.
SL bag filter adopts the second generation patented product "0PTIPOW" piston pulse valve of AISTOM Company. Compared with the first generation diaphragm pulse valve widely used in the market at present, it has the advantages of simple structure, reliable performance, fast response, low negative pressure and more effective dust removal. Another important feature of 0PTIPOW pulse valve is its "soft landing" function, which can greatly reduce the collision force between filter bag and cage bone caused by injection and prolong the service life of filter cloth. This is also not available in all other pulse injection valves at present. At the same time, the optimized uniform flow blowpipe can ensure that the dust removal pressure can be effectively and evenly transmitted to each filter bag, and the best dust removal effect can be obtained, thus ensuring the performance of the dust collector. The bypass flue of SL bag filter is located inside the equipment, which does not need to occupy additional space, and has compact structure and convenient daily operation and management. The bypass valve is airtight, which ensures zero leakage of flue gas and structurally ensures that the bypass valve will not be blocked by dust. Moreover, even if the whole dust removal system is cut off due to an unexpected accident, the bypass valve can still be opened urgently, ensuring the smooth flue gas passage and protecting the boiler and filter bag, which is extremely safe and reliable. Each filter chamber of SL bag filter is equipped with an inlet and outlet damper, which can close the damper of any filter chamber under the working state of the whole machine, which is convenient for maintenance.
2, electrostatic dust removal
Product advantages:
High dust collection efficiency
The equipment runs stably and reliably.
Convenient maintenance and low operation cost.
principle
This product is a device that uses the principle of electrostatic attraction and relies on electricity to separate suspended dust particles from gas.
use
It is the most important and efficient dust removal equipment for industrial furnaces and kilns in coal-fired power stations, metallurgy, building materials, chemical industry, paper making and other industries and flue gas dust removal in industrial processes.
trait
Cooperate with Zhejiang University to develop advanced selection technology to increase the dust collection area and ensure the dust collection effect of vacuum cleaner;
Using truss structure, the material is evenly stressed, the structure is more reasonable and the installation is convenient;
The flow blocking and diversion type is adopted, which can be adjusted by guide vanes according to different flue forms, so that the inlet airflow distribution is uniform.
Insulator room adopts heated air purging system to ensure its normal operation;
The ash hopper is insulated to fully ensure the smoothness of dust in the ash hopper;
Using rubber glass fiber sealing technology, the air leakage rate is small;
Can use "Rs line", spiral line and other polar matching types;
Select the appropriate vibration scoring formula to meet the cleaning requirements of polar plates and wires;
Add a bad distribution plate without electric field to improve dust prevention efficiency.
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