Bag filter for electric furnace

NegotiableUpdate on 01/30

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Nature of the Manufacturer: Producers

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Overview

Electric furnace bag filter has a wide range of applications and strong dust cleaning ability, reducing energy consumption by more than 12% compared to other dust collectors with the same filtration area for long-term use. The bag filter has a long service life Hebei Zhonghe Environmental Protection strictly follows customer requirements in the production of bag filters for electric furnaces, striving for development through quality

Product Details

Electric furnace bag filter、Bag filter for electric furnaceIt has been widely used in the market and customers are also optimistic about the product. It has been applied in industries such as electric furnace steelmaking, blast furnace coal injection, sintering, refractory, carbon black, cement, etc., and has achieved good results.Electric furnace bag filterIt has good advantages, and compared to other similar products, its dust cleaning ability and filtration load are still good.

Structure composition of electric furnace bag filter:
1. Body: It consists of an upper box, a middle box, an ash hopper component, an inspection door, a bracket, etc.
2. Dust collection and filtration system: mainly composed of dust collector bag, dust collector frame, flower plate components, and inlet air distribution system.
3. Spray cleaning and ash unloading system: mainly composed of gas pipelines, electromagnetic pulse valves, spray pipe components, and manual plug valves.
4. The dust removal bag adopts the standard specification of φ 133X2500mm, and the material is made of Flumes needle punched felt.
5. The electric furnace bag dust removal equipment adopts an external filter type. The dust removal bag of the bag filter is connected to the flower plate through a spring expansion ring, forming a separation between clean air and dusty gas.
6. During dust cleaning, the control pulse controller sends a pulse signal to the electromagnetic pulse valve, which sprays compressed air through the spray pipe to radially deform the dust bag and shake off the dust.

Electric furnace bag filterBag filter for electric furnaceKey selection points:

Firstly, the total filtering area of the bag filter is determined based on the amount of flue gas processed and the filtering wind speed of the dust collector. Then, the air to cloth ratio (filtering wind speed) is determined, which refers to the air to cloth ratio of different cleaning methods while meeting roughly the same purification requirements. The actual industrial smoke and dust properties are complex, and the gas to cloth ratio value for pulse jet bag filters is very conservative. Therefore, as a preliminary selection, it is recommended to use more conservative empirical values: mechanical vibration bag filter filtration wind speed of 0.5/0.9 m/min; The filtering wind speed of the reverse airflow bag filter is set at 0.4/0.8 m/min; The filtering wind speed of the pulse jet bag filter is 0.8/1.2m/min. Then calculate the number of filter bags based on the total filtration area, bag length, and bag diameter. The range of values for bag length, bag diameter, and filter bag center distance varies depending on the cleaning method used.

The exhaust method of electric furnace bag filter and electric furnace bag filter:

There are many exhaust methods for steelmaking electric arc furnaces, which can be roughly divided into: exhaust outside the furnace, exhaust inside the furnace, combined exhaust inside and outside the furnace, and roof exhaust. The smoke exhaust method can be determined through analysis and comprehensive comparison based on the requirements of smelting steel type, process operation, process layout, plant conditions, water source situation, low investment, environmental protection, labor hygiene, energy conservation, and maintenance management level. The basis is that users generally adopt the form of smoke exhaust outside the furnace. The characteristics of this type of smoke exhaust hood are: 1. Low smoke temperature (≈ 200 ℃); 2. Dealing with larger air volume compared to other types of smoke exhaust hoods in the furnace; 3. Moderate to high electricity consumption; 4. No cooling water consumption, no explosion-proof requirements; 5. Does not affect smelting;

Design of the Capture Cover for Electric Furnace Bag Dust Collector:
1. Adopting a fixed semi closed hood, the smoke collection hood is arranged above the furnace body and designed as an arched structure that matches the airflow line.
2. Does not affect the production process operation and the observation of operators
3. Satisfy the normal operation requirements of production equipment without affecting the maintenance of production equipment
4. Having sufficient rigidity, strength, and stability to avoid partial thermal performance in high temperature zones
5. The hood design should be able to effectively organize the flow of smoke inside the hood towards the suction port direction
6. The size of the hood can effectively control the smoke flow, with storage capacity and average hood velocity.