1、 In recent years, with the continuous development of technology, various factories have emerged that require purification treatment for pollution caused by pulse filter dust collectors; Widely used in industries such as food, cement, chemical, metal processing, and special powders, pulse filter cartridge dust collectors are particularly important for maintenance and upkeep to achieve ideal dust removal efficiency after prolonged use. The following points need to be achieved. 1. Determine the drainage cycle based on the water accumulation in the air bag of the compressed air system's gas-liquid separator. 2. Determine the dust collection capacity of the dust removal equipment and determine the ash discharge cycle based on the dust collection capacity of the dust removal system. 3. Regularly check whether the dust cleaning system of the pulse filter cartridge dust collector is blowing normally. If it is not normal, focus on checking whether the pulse valve diaphragm and solenoid valve are malfunctioning or damaged, and repair or replace them in a timely manner. 4. After the operation of the pulse filter cartridge dust collector is completed every day, the dust accumulated in the ash hopper must be discharged by opening the vent valve at the end of the air bag every 72 hours of operation. Precautions for operating a pulse filter cartridge dust collector: 1. Before installing the pulse filter cartridge dust collector, check all accessories for damage to the main unit, ensure that all parts are securely connected, and ensure that the dust collector is functioning properly. 2. The input port of the solenoid valve is inserted into the metal tube of the gas storage cylinder, and its output end is inserted into the spray pipe of the dust collector. The valve is equipped with rubber sealing rings and fixing nuts at both ends, which can fix and seal the solenoid pulse valve. 3. When installing the water separation filter pressure reducing valve, make sure that the direction of the arrow shown on the valve is consistent with the direction of the compressed air flow. The outlet pressure of the pressure reducing valve should be adjusted to 0.4-0.6MPa. 4. Rotate the pulse pulse knob, and the pulse jet control device sends instructions to open the electromagnetic pulse valve in sequence, observing whether the dust filter cleaning action is correct. 5. When the dust collector is installed outdoors, the two components of air filtration and pressure reduction, electromagnetic pulse valve, and pulse blowing control device need to be equipped with rain shelters or covers. 6. Before putting the pulse filter cartridge dust collector into use, the fan on the equipment should be checked for normal operation, abnormal noise or poor conditions, otherwise it should be stopped for repair. When debugging, the fan should be started and the direction of rotation should be observed. The fan can only be put into use when it can operate normally and the direction is correct. 2、 The working process of pulse filter cartridge dust collector With the expansion of the environmental dust removal equipment market, various dust collector products are increasingly recognized by people. As a representative of the future development direction of dust collectors, bag filters are favored by the market. As a variant product of bag filters, pulse filter cartridge dust collectors are widely regarded by many dust collector manufacturers for their future development space. The pulse filter cartridge dust collector is equipped with an air inlet, filter cartridge, air outlet, air bag, pulse controller, pulse spray valve, spray pipe, etc. The filter cartridge is folded and rolled from polyester fibers, with its lower end closed and its upper center facing the lower opening of the spray pipe. The working process of the pulse filter cartridge dust collector: After the dusty gas enters the filter cartridge dust collector through the inlet, the airflow velocity slows down, and coarse particles detach from the airflow and settle into the dust collection chamber. Fine dust is blocked on the outer surface of the filter cartridge when passing through it with the airflow, and clean gas is discharged through the outlet; When the dust layer on the surface of the filter cartridge is thick, the pulse controller sends a command to open the spray valve. The compressed air in the air bag is sprayed out at high speed through the spray pipe, and at the same time, it induces surrounding air several times the amount of spray to enter the filter cartridge and shoot out from the inside out. The dust on the outer surface of the filter cartridge is blown down and falls into the dust collection chamber, and then discharged from the ash hopper. 3、 Optimization design of pulse filter cartridge dust collector: There is no uniform flow device inside the pulse filter cartridge dust collector, resulting in poor flow field uniformity; The asymmetric distribution of air inlet and outlet further deteriorates the uniformity of the flow field; The air inlet is close to the bottom of the box, and the accumulated dust at the bottom of the box will be continuously sucked up and lifted, generating "secondary dust" that increases the filtering load of the filter cartridge and reduces the filtering efficiency. The pulse filter cartridge dust collector is divided into upper inlet, lower inlet, and side inlet according to the position of the air inlet. If the dust collector is changed to an inlet air method, significant modifications will be required to the filter cartridge, injection system, and casing, resulting in higher economic costs; The side air intake method has good airflow uniformity, but high steel consumption rate; The downward air intake method has a simple structure and low cost. Make modifications based on the advantages of high uniformity of the side inlet airflow field and simple structure of the lower inlet airflow. In terms of structure: adjust the positions of the air inlet and outlet to make them relatively distributed; Shorten the length of the dust removal room, install inverted four sided platform ash hoppers, and install ash hopper windbreakers to avoid the phenomenon of "secondary dust"; Adopting an N-type air duct intake method, a guide plate is installed in the air duct to prevent uneven distribution of airflow in the duct; An airflow distribution plate is installed inside the box, and its angle and quantity are adjusted to achieve optimal uniformity of the flow field inside the filter cartridge dust collector. 4、 The issues to consider when choosing a pulse filter cartridge dust collector should be based on the characteristics of the dust: the characteristics of the dust include its chemical and physical properties. Now, we focus on analyzing the physical properties of the dust and correctly selecting the material, structure, and post-treatment of the filter material. 1. The adhesion and cohesiveness of dust have the characteristic of mutual adhesion or adhesion to the surface of other objects. When suspended dust comes into contact with each other, they adsorb and condense together. The cohesion of dust is related to various factors such as its type, shape, particle size distribution, moisture content, and surface characteristics. Overall, the angle of repose can be used to characterize the cohesion of dust. For example, those with a resting angle less than 30 ° are called low adhesion and have good fluidity; A resting angle greater than 45 ° is called high adhesion and has poor fluidity. In addition, the viscosity (adhesion and cohesiveness) of dust and solid surfaces is also related to the roughness and cleanliness of the solid surface. 2. When filtering, intercepting, and condensing dust, the destructive effect of dust (especially irregular dust) on the filter material is called grinding and pecking. It is related to factors such as the nature and form of dust, as well as the airflow velocity and dust concentration carrying the dust. For example, materials such as aluminum powder, silicon powder, carbon powder, and sintered ore powder are hard and belong to high abrasive dust; The abrasive properties of dust particles with rough and irregular edges are many times greater than those with smooth and spherical surfaces (about 10 times); Dust with a particle size of around 90 μ m has high abrasion resistance, while when the particle size decreases to 5-10 μ m, the abrasion resistance becomes weak; The abrasive nature of dust is directly proportional to the 2-3.5 power of the airflow velocity carrying it. Therefore, in order to reduce the abrasion of dust on the filter material, the speed and uniformity of the airflow should be strictly controlled. In addition, good filter materials should be selected for dust with high abrasion resistance.
