Our company has experience in the treatment of electric furnace flue gas. The dust collector of the electric furnace dust removal system adopts a pulse bag dust collector that is not easy to condense, has low resistance, is easy to clean and operate. Our company's electric furnace dust removal adopts an independent dust removal system, which is arranged online in a one-to-one correspondence: the flue gas generated by the electric furnace during smelting enters the air duct through the smoking hood, and is uniformly controlled below 180 degrees by the spark collector. Then it enters the pulse dust collector, enters the exhaust pipe through the main fan, and enters the atmosphere.
Technical characteristics of Shengjing electric furnace dust collector: capable of long-term and stable operation of the system; The vacuum hood used captures flue gas from the entire process of feeding, smelting, slag removal, and discharging; Economic flow rate pipeline technology; The operating system is automatically controlled, with a high degree of automation and strong system protection capabilities.
The dust collector cover of Shengjing electric furnace adopts a fixed semi closed cover, which is arranged above the furnace body and designed as an arched structure that matches the airflow line.
The design of the electric furnace flue gas capture hood follows the following principles:
(1) Not affecting the production process operation and the observation of operators;
(2) Satisfy the normal operation requirements of production equipment without affecting the maintenance of production equipment;
(3) Having sufficient rigidity, strength, and stability to avoid partial thermal performance in high temperature zones;
(4) The design of the hood should be able to organize the flow of smoke inside the hood towards the suction port;
(5) The size of the hood can control the smoke flow, with a storage capacity and an average hood velocity.
(6) The cover itself should be well sealed;
(7) Other relevant requirements include a 3mm thick steel plate for the cover body.
Specific process of electric furnace bag filter:
The electric furnace flue gas purification system adopts a fixed cover+mobile (semi) closed cover capture method. The use of a mobile enclosed hood has the characteristics of capture and low investment. The mobile (semi) airtight cover is mainly composed of fixed wall panels, fixed suction and blowing horns, and movable feeding operation doors. When adding materials, the movable door is opened. When the material basket is lifted to the top of the furnace, the door gradually closes, leaving only one gap for the wire rope movement of the material basket, which can meet the production needs. After the feeding is completed, the movable door is closed. The mobile cover is composed of two sets of deceleration and deceleration devices and two rollers, which move linearly along the direction of the factory building frame on the guide rail.
Adopting the "expansion ring self-locking seal" to solve the problem of unclear separation between the upper and lower boxes. Further improve dust removal efficiency. The use of stamped flower plates eliminates the inconvenience of installing filter bags, making operation more convenient and saving time and effort. The electromagnetic pulse valve adopts a dual-mode chip structure, combined with ASCO valve core, for more flexible control, efficiency, and can impact more than 6 million times, with a longer service life. The use of Flumes cloth bags can keep the temperature of the flue gas below 280 degrees Celsius. It can increase wind speed without affecting the effect. Not easy to condense, making dust cleaning smoother.
Technical characteristics of intermediate frequency furnace dust collector:
1. Good dust cleaning effect: Using a large-diameter submerged pulse valve, the spraying resistance is small, the air pressure is low, and the instantaneous spraying pressure for dust cleaning reaches 2000pa, resulting in good dust cleaning effect.
2. Easy maintenance: adopting an upper cover structure, the filter bag frame can be removed to replace the bag; The main fan is in a clean airflow working environment, and the blades of the main fan do not require cleaning and maintenance. The fan operates relatively stably.
3. Investment saving: A new type of composite filter material with significantly improved compatibility, flexural resistance, and peel strength, which can both increase the filtration speed and have a long service life; The skeleton adopts an integral die welded skeleton, and the upper part of the skeleton is equipped with an integral Venturi tube, which has good overall performance, high surface smoothness, and does not damage the filter bag; The filter unit and dust collector flower plate are assembled with spring clamps for easy disassembly and maintenance, and have good sealing performance; Due to the good quality of accessories, the overall operating costs have been reduced.
4. Design: In response to the situation where the flue gas temperature at the outlet of the electric furnace can reach over 450 ° C, an outdoor natural cooling system has been specially designed, which does not consume energy or power and can save costs. On this basis, an automatic controlled cold air valve has been added for use in case of high temperature, improving the equipment's operational performance.
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