GA type atmospheric cleaning bag dust collector; The dust cleaning system adopts high-frequency vibration and reverse blowing for treatment, and the reverse blowing is achieved by a designed electric cylinder driving a three-way valve. The action of the electric cylinder is controlled by a set of automatic control system, which saves investment in supporting auxiliary equipment and significantly reduces energy consumption and equipment operating costs compared to the pulse reverse blowing and high-pressure reverse blowing bag filter used in the past.
As the working time increases, the thickness of the dust layer on the inner wall of the filter bag gradually increases, and the resistance also gradually rises. When the high value reaches a horizontal column of 80-120 millimeters, we can see this change through the U-shaped pressure gauge. When the electric cylinder is started, the main valve plate of the electric three-way valve is closed, and the auxiliary valve plate is opened, the back blowing and dust cleaning can be carried out. At the same time, the device also has the advantages of stable performance, long filter bag life, dust removal, and easy maintenance. The dusty gas enters the ash hopper through the inlet pipe, and is purified by the filter bag inside the box. It is then discharged to the air pipe through the main valve plate opened by the electric three-way valve, and the gas in the outlet pipe is discharged into the atmosphere through the centrifugal fan and chimney. This dust collector is widely used in industries such as ceramics, metallurgy, casting, light industry, grain, building materials, and chemical industry.
The main features of GA type atmospheric cleaning bag filter are:
GA type atmospheric cleaning bag dust collector; It consists of an inlet and outlet flue, a dust removal room, a clean air room, a dust cleaning system, and an ash hopper. When the offline pulse dust collector is working, the exhaust gas temperature drops to 130 ℃, and the dust containing gas that can instantly reach 180 ℃ is distributed through the lower flue of the bag filter and enters the ash hoppers in each room. Due to factors such as deflection and reduced velocity, the smoke particles, which are relatively coarse and heavy, are allowed to settle down, achieving the purpose of pre separation. Fine dust enters the dust removal chamber of the offline pulse dust collector by turning upwards with the airflow. Due to the filtering effect of the offline pulse dust collector filter bag, the dust is trapped on the outer surface of the filter bag. After filtration, the clean gas enters the clean gas chamber of each unit from the inside of the filter bag of the offline pulse dust collector and converges in the outlet flue; After passing through the induced draft fan, it is discharged into the atmosphere through the chimney.
In the daily operation of the GA series atmospheric cleaning bag filter, changes in operating conditions or malfunctions can affect the normal operation and performance of the equipment. Regular inspections and appropriate adjustments are necessary to extend the life of the dust filter bag, reduce power consumption, and recover useful materials.
Special attention should be paid to taking measures to prevent combustion, explosion, and fire accidents in the GA series atmospheric cleaning bag filter. When dealing with combustion gases or high-temperature gases, unburned dust, sparks, and combustible and explosive gases often enter the system. Some dust has the property of spontaneous combustion or electrification. At the same time, most filter materials are easy to burn and generate static electricity through friction. Under such operating conditions, there is a risk of combustion and explosion accidents, and the consequences of such accidents are often serious. Good consideration should be given to taking measures, such as:
⑴ Install a combustion chamber or spark trap in front of the dust collector to burn unburned dust and gas or capture sparks.
⑵ Take measures to prevent static electricity accumulation, grounding each part with conductive materials, or adding conductive fibers during the manufacturing of filter materials.
⑶ Prevent the accumulation or buildup of dust to prevent spontaneous combustion and explosion of dust.
Before entering the bag room or pipeline for inspection or maintenance, it is necessary to ventilate and prevent CO poisoning.