Precautions for operating Bag Filtration Equipment

Bag Filtration Equipment https://www.cnsbfec.com/

Bag Filtration Equipment is currently one of the dust removal devices with the highest dust removal efficiency among all dust collectors. It has the advantages of dust removal, stable operation and simple maintenance. However, the filter material has high requirements for temperature. If the temperature is too high, it will reduce the strength and air permeability of the filter bag and may even burn the filter bag. If the temperature is too low, the water vapor in the flue gas will liquefy, that is, "condensation", turning the sulfur-containing gas in the flue gas into acid and corroding the filter bag. If there is too much water vapor, it will mix with ash and adhere to the filter bag, causing the "bag sticking" phenomenon or even "clogging", which seriously affects the air permeability of the filter bag. Therefore, the control of flue gas temperature is of vital importance. Glass furnaces and kilns generate a large amount of dust during the production process, causing significant pollution to the surrounding environment. And the temperature of the emitted flue gas is very high; Due to the influence of various factors during the production process, the temperature varies within the range. In the case of frequent fluctuations in the working condition temperature within a small range, the introduction of fuzzy control has achieved a very good effect on the control of flue gas temperature.

It is very important to operate the Bag Filtration Equipment correctly, as it has a very direct relationship with the service life of the Bag Filtration Equipment. Precautions for operating Bag Filtration Equipment:

Before starting the stainless steel dust collector for each shift, it is necessary to check the oil level of the centrifugal fan discharger, the oil level of the fan bearing box, and whether the anchor bolts and fastening bolts are loose. Check whether the air valve on the pipeline is in the set switch position. Check whether the knob positions of the pulse controller are appropriate.

2. Start the dust collector before starting the crusher.

3. Start the crusher again.

4. Turn on the pulse controller and the dust collector will start working.

5. During the operation of the dust collector, start the discharger for 5 to 10 minutes before the shift stops to completely discharge the ash. A section of soft cloth tube should be connected to the ash discharge pipe opening near the belt to allow the dust to flow slowly on the belt and prevent secondary dust raising.

6. The pointer of the electric valve is open at 900 and closed at 00.

7. The manual valve is closed when turned clockwise and open when turned counterclockwise.

Bag Filtration Equipment is a new type of dust removal facility. Its main working principle is to use very fine-structured cloth bags to trap dust particles of various sizes, so that the dust is blocked by the cloth bags and cannot continue to spread into the atmosphere, avoiding the pollution of the atmospheric environment. Enterprises that use bag filters usually generate a considerable amount of dust pollution. This is not only a requirement of China's environmental protection standards but also a manifestation of the public morality of enterprises. The bag filter method is being used more and more widely.

The simulation calculation results show that the Filtration velocity seriously affects the uniformity of air distribution inside the direct-through bottom-inlet Bag Filtration Equipment. With the increase of the filtration speed, the jet effect at the air inlet intensifies. The direct scouring of the bottom of the filter bag by the airflow will cause the wear of the filter bag. The air flow rate processed by each filter bag shows a situation where the front end is smaller and the rear end is larger. The filtration speed is a relatively suitable working condition, but the airflow distribution is still uneven. In the structural optimization of the air inlet pipe of Bag Filtration Equipment, the use of deflector elbows can weaken the jet effect at the air inlet, avoid the direct scouring of the airflow on the bottom of the filter bag, and prolong the service life of the filter bag. The three types of deflector devices added in the ash hopper can all ensure the uniformity of the airflow distribution. Among them, the trapezoidal deflector plate has a small influence on the operating resistance of the system, and the organization of the flow field in the dust collector is uniform. Moreover, the gap velocity is better among the three models. Calculated by the RMS airflow uniformity determination standard, it indicates that the airflow distribution is good. Under the same filtration speed, the structurally optimized model has a better capture effect on particles with a particle size of less than 100μm than the unoptimized model. Moreover, the amount of particles captured by each filter bag is uniform, and a part of the particles with a particle size of about 150μm are captured by the lower part of the filter bag.

Bag Filtration Equipment https://www.cnsbfec.com/


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