Manufacturer supplies small bag filter seller Quanzhou bag filter equipment

Description :

　　Product Maintenance

　　Regularly check the operation of control valves, pulse valves, and timers.

　　The failure of the pulse valve rubber diaphragm is a common fault in bag filters, which directly affects the dust cleaning effect. This device belongs to the external filter type, with a skeleton inside the bag. It is necessary to check whether the parts that fix the filter bag are loose and whether the tension of the filter bag is appropriate. Is the support frame smooth to prevent wear and tear on the filter bag. Compressed air is used for dust removal. Therefore, it is required to remove oil mist and water droplets, and the oil-water separator must be cleaned regularly to prevent malfunction of the moving mechanism and blockage of the filter bag.

　　Whether the air volume and pressure and temperature at each testing point are consistent with the design.

　　The installation status of the 3 filter bags, whether there are any occurrences of bag dropping, loosening, wear, etc. after use, can be judged by visually observing the emissions of the chimney after operation.

　　4. Prevent condensation

　　During use, it is necessary to prevent the gas from cooling below the dew point in the bag chamber, especially when using a bag filter under negative pressure. Due to the frequent leakage of air into the outer shell, the gas temperature in the bag chamber is lower than the dew point, causing the filter bag to become damp. This results in dust not being loose but sticking to the filter bag, blocking the fabric holes and causing dust removal failure. This leads to excessive pressure drop in the dust collector, making it unable to continue operating, and some bags may become stuck and unable to remove dust.

　　To prevent condensation, it is necessary to maintain the temperature of the gas in the dust collector and its system at 25-35 ℃ above its dew point (such as the dew point temperature of 58 ℃ for kiln mill integrated machines, and the operating temperature should be above 90 ℃), in order to ensure the good use effect of the filter bag.

　　market situation

　　There is a huge demand for bag filters in China, and dust removal filter materials, especially high-temperature resistant fiber filter materials, have broad market development prospects. The 12th Five Year Plan of our country has put forward higher demands for environmental protection, and more filter materials will be used for water, gas, sound, and slag. The market prospects of the filter material industry are promising. Among them, in the field of smoke and dust control, bag filter is increasingly widely used both domestically and internationally due to its high dust removal efficiency, no secondary pollution, and ease of recovering dry materials, accounting for 80% of the dust removal equipment used. The steel industry is one of the main sources of air pollution. China's steel production has exceeded 300 million tons, and based on Baosteel's application of bag filter dust removal, 21 million square meters are needed. After calculation, 6 million square meters of filter material need to be replaced annually.

　　Boiler wet dust collector is cheap, but it has secondary pollution and low dust removal efficiency

　　Wet dust collector is a device that captures dust particles by using a dusty airflow to come into contact with water or other liquids. Like Venturi dust collector, cyclone water film dust collector, etc. The washing type dust collector has high efficiency, simple structure, low cost, and also has the function of absorbing harmful gases. However, it will produce sewage and sludge, which will waste a lot of time and manpower when cleaning again.

　　This wet dust collector has a simple structure, low metal consumption, and occupies less land, so the dust removal efficiency can reach over 90%. Therefore, it is widely used in small and medium-sized boilers. The disadvantages and high water consumption of wet dust collectors are that acid containing wastewater needs to be treated to meet emission standards. The presence of water in the flue gas can cause dust accumulation in the flue and induced draft fan impeller, leading to corrosion and uneven quality of the induced draft fan impeller, resulting in vibration.

AfterSalesService :

• bag filter