Maintenance and Overhaul of Pulse Bag Filter
2024-01-19 13:07:27
In the normal operation of the bag filter, the maintenance work is often neglected. Once a failure occurs, it will affect the operation; sometimes it is considered that the equipment is obsolete and will not be repaired. This recognition is wrong.
In order to keep the equipment running effectively, it is necessary to pay attention to maintenance and repair work. If problems are discovered and dealt with in a timely manner, they will not develop into serious problems, which can avoid major problems and save repair costs. Therefore, it is very important to find the problem in time. The operator zui checks the equipment on a daily basis and discovers and prevents failures based on experience.
According to the conditions of use, the manufacturer's product manual, and maintenance unit and operator experience, etc., to determine the maintenance content and repair time of each device. Do maintenance maintenance according to plan, instead of going over problems and repairing.
In order to facilitate maintenance operations, necessary ladders, passages, and lighting equipment must be installed. Among them, the hand-held lamp power supply should be a safe voltage.
During the operation of the equipment, no matter whether it is closed or open type, it is absolutely toxic and harmful gas enters the system. When the equipment is shut down, it is also necessary to use air to replace the gas inside the system. If it is considered that harmful gas still exists, it is necessary to use the equipment to check and confirm the safety before operating, but it is not suitable for single operation. Otherwise, the problem cannot be timely. Found that it will cause a big accident. The safety measures for maintenance operations are as follows;
a. Replace the toxic and harmful gases in the system with air to prevent possible accidents;
b. During the inspection work, in order to prevent the equipment from being driven by the person, the operator must carry the key of the operation panel by himself, and hung the forbidden starting plate on the operation panel;
c. The total power of the switch must be turned off.
Box maintenance management
The bag filter housing is fixed. Its external environment is weathered by wind and rain all year round. It is internally contaminated by gas, and the conditions are very harsh. Box maintenance is divided into two parts inside and outside.
(1) External maintenance External maintenance mainly checks for paint, leaks, bolts, and surrounding seals. For high-temperature, high-humidity gases, insulation layers such as rock wool, glass wool, and polyphenyl ester are generally used outside to prevent jielu and ensure safety. After the insulation layer is wetted by rain, it will accelerate the corrosion of the cabinet. Therefore, the dust collector on the site of the lu should pay full attention when it rains.
(2) The inner side of the internal maintenance box is in an environment where it is easy to get rid of dust, adheres to dust, and may cause corrosion after the gas is dissolved. The welded parts between the steel plates and between the steel plate and the angle steel, and the edge of the flower board where the dust filter bag is installed are all parts which are liable to be corroded. Therefore, the maintenance of the interior of the box is mainly to select the coating that can resist corrosion, and timely apply it to the easily corroded or corroded parts. Under normal circumstances, because the purified gas is mostly acidic,. Therefore, more epoxy-based acid-resistant coatings are used.
(3) Crevice repair The crevice of the cabinet is generally filled with rubber, rubber mats, and asbestos mats to prevent gas leakage. As time goes on, some gaskets will age, deteriorate, and break off, causing increased air leakage. During maintenance, it was found that the above phenomenon should be taken seriously, or replaced, or plugged, and air leakage should be avoided as much as possible. Among the existing plugging materials, epoxy resin and leak-proof cement are all good materials. For example, the holes must be repaired by dust.
Valve maintenance management
Although the valve produced by each manufacturer is not exactly the same, it depends on the function of the application. According to the purpose of using the valve, some require good sealing performance, while others require it to maintain the specified position. Due to the poor sealing performance of the reversing valve of the vibratory cleaning, the cleaning effect is not good and the damage of the filter bag is promoted. Because of the poor sealability of the blowback valve, the cleaning effect also deteriorates.
(1) Maintenance items in operation
aã€Action status, valve opening and closing is flexible and accurate;
b, leakage, cooling displacement, drainage temperature, winter attention to insulation, prevent the freezing of water;
c. Actuation status of the drive device (cylinder or electric cylinder), and the operating status of air source accessories;
d, the valve's tightness.
(2) Maintenance items at parking
1 deformation and damage.
2 valve sealing and flexible operation conditions.
3 The connection of the electronic control part and the dust removal equipment The purpose of setting the safety valve is to prevent the entire safety valve from being destroyed when the safety valve acts to dissipate the explosion pressure in the atmosphere. Although there are few possibilities for the operation of the safety valve, it is necessary to periodically open and close it manually and check its operation repeatedly. After the pressure is reduced, the safety valve should automatically return to its original position and close, allowing the system to continue operating.
Hopper management and maintenance
The ash bucket is a device for storing dust in the dust collector. Too much dust is accumulated in the ash hopper, which can block the air inlet and become a cause of poor suction. Therefore, it is often necessary to make the ash bucket almost empty. If you inhale rain and moisture from the air outlet, it may cause the dust to adhere to the inner wall of the hopper and cause the ash outlet to clog. Therefore, the ash outlet must be sealed properly.
The main hazards of large amounts of dust accumulated in the ash hopper are: increased resistance, reduced air flow, falling of dust that has fallen into people's mouth, blocking of the filter bag, blockage of the inlet pipe, and bridging of dust in the hopper. Difficulties in dedusting; dust entering the filter bag can cause breakage, elongation, and reduced tension in the filter bag.
Henan Zhengzhou Jienengda Environmental Protection Equipment Co., Ltd. specializes in producing various types of dust removal equipment, such as: various filter cartridge dust collectors, various series bag filter, dust removal and desulfurization integration technology, various dust removal accessories, etc., through years of accumulated experience and Continuous development and innovation There is a unique set of technologies for the application of bag filter, including the improvement of bag filter and the handling of some problems are all experienced. Users are welcome to inquire and order. We will work together with you to bring our environment together.
In order to keep the equipment running effectively, it is necessary to pay attention to maintenance and repair work. If problems are discovered and dealt with in a timely manner, they will not develop into serious problems, which can avoid major problems and save repair costs. Therefore, it is very important to find the problem in time. The operator zui checks the equipment on a daily basis and discovers and prevents failures based on experience.
According to the conditions of use, the manufacturer's product manual, and maintenance unit and operator experience, etc., to determine the maintenance content and repair time of each device. Do maintenance maintenance according to plan, instead of going over problems and repairing.
In order to facilitate maintenance operations, necessary ladders, passages, and lighting equipment must be installed. Among them, the hand-held lamp power supply should be a safe voltage.
During the operation of the equipment, no matter whether it is closed or open type, it is absolutely toxic and harmful gas enters the system. When the equipment is shut down, it is also necessary to use air to replace the gas inside the system. If it is considered that harmful gas still exists, it is necessary to use the equipment to check and confirm the safety before operating, but it is not suitable for single operation. Otherwise, the problem cannot be timely. Found that it will cause a big accident. The safety measures for maintenance operations are as follows;
a. Replace the toxic and harmful gases in the system with air to prevent possible accidents;
b. During the inspection work, in order to prevent the equipment from being driven by the person, the operator must carry the key of the operation panel by himself, and hung the forbidden starting plate on the operation panel;
c. The total power of the switch must be turned off.
Box maintenance management
The bag filter housing is fixed. Its external environment is weathered by wind and rain all year round. It is internally contaminated by gas, and the conditions are very harsh. Box maintenance is divided into two parts inside and outside.
(1) External maintenance External maintenance mainly checks for paint, leaks, bolts, and surrounding seals. For high-temperature, high-humidity gases, insulation layers such as rock wool, glass wool, and polyphenyl ester are generally used outside to prevent jielu and ensure safety. After the insulation layer is wetted by rain, it will accelerate the corrosion of the cabinet. Therefore, the dust collector on the site of the lu should pay full attention when it rains.
(2) The inner side of the internal maintenance box is in an environment where it is easy to get rid of dust, adheres to dust, and may cause corrosion after the gas is dissolved. The welded parts between the steel plates and between the steel plate and the angle steel, and the edge of the flower board where the dust filter bag is installed are all parts which are liable to be corroded. Therefore, the maintenance of the interior of the box is mainly to select the coating that can resist corrosion, and timely apply it to the easily corroded or corroded parts. Under normal circumstances, because the purified gas is mostly acidic,. Therefore, more epoxy-based acid-resistant coatings are used.
(3) Crevice repair The crevice of the cabinet is generally filled with rubber, rubber mats, and asbestos mats to prevent gas leakage. As time goes on, some gaskets will age, deteriorate, and break off, causing increased air leakage. During maintenance, it was found that the above phenomenon should be taken seriously, or replaced, or plugged, and air leakage should be avoided as much as possible. Among the existing plugging materials, epoxy resin and leak-proof cement are all good materials. For example, the holes must be repaired by dust.
Valve maintenance management
Although the valve produced by each manufacturer is not exactly the same, it depends on the function of the application. According to the purpose of using the valve, some require good sealing performance, while others require it to maintain the specified position. Due to the poor sealing performance of the reversing valve of the vibratory cleaning, the cleaning effect is not good and the damage of the filter bag is promoted. Because of the poor sealability of the blowback valve, the cleaning effect also deteriorates.
(1) Maintenance items in operation
aã€Action status, valve opening and closing is flexible and accurate;
b, leakage, cooling displacement, drainage temperature, winter attention to insulation, prevent the freezing of water;
c. Actuation status of the drive device (cylinder or electric cylinder), and the operating status of air source accessories;
d, the valve's tightness.
(2) Maintenance items at parking
1 deformation and damage.
2 valve sealing and flexible operation conditions.
3 The connection of the electronic control part and the dust removal equipment The purpose of setting the safety valve is to prevent the entire safety valve from being destroyed when the safety valve acts to dissipate the explosion pressure in the atmosphere. Although there are few possibilities for the operation of the safety valve, it is necessary to periodically open and close it manually and check its operation repeatedly. After the pressure is reduced, the safety valve should automatically return to its original position and close, allowing the system to continue operating.
Hopper management and maintenance
The ash bucket is a device for storing dust in the dust collector. Too much dust is accumulated in the ash hopper, which can block the air inlet and become a cause of poor suction. Therefore, it is often necessary to make the ash bucket almost empty. If you inhale rain and moisture from the air outlet, it may cause the dust to adhere to the inner wall of the hopper and cause the ash outlet to clog. Therefore, the ash outlet must be sealed properly.
The main hazards of large amounts of dust accumulated in the ash hopper are: increased resistance, reduced air flow, falling of dust that has fallen into people's mouth, blocking of the filter bag, blockage of the inlet pipe, and bridging of dust in the hopper. Difficulties in dedusting; dust entering the filter bag can cause breakage, elongation, and reduced tension in the filter bag.
Henan Zhengzhou Jienengda Environmental Protection Equipment Co., Ltd. specializes in producing various types of dust removal equipment, such as: various filter cartridge dust collectors, various series bag filter, dust removal and desulfurization integration technology, various dust removal accessories, etc., through years of accumulated experience and Continuous development and innovation There is a unique set of technologies for the application of bag filter, including the improvement of bag filter and the handling of some problems are all experienced. Users are welcome to inquire and order. We will work together with you to bring our environment together.
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