1、 The use of pulse dust collectors and pulse dust collectors; The use of offline pulse dust cleaning technology in separate rooms overcomes the shortcomings of reverse blowing dust cleaning and general pulse dust cleaning, with low dust cleaning, dust removal, low emission concentration, low energy consumption, small footprint, and smooth operation. Pulse dust collectors are particularly suitable for the following occasions: dust removal in calcium carbide furnaces and various electric furnaces in ferroalloy factories; Steel plant flue gas purification; Dust removal for coal-fired boilers and small boilers in power plants; Dust removal of garbage incinerator; High temperature flue gas dust removal in smelters; Aluminum plant flue gas purification; Dust removal at the tail and head of rotary kilns in cement plants; Carbon black plant exhaust dust removal, etc. Its application is characterized by high temperature and large smoke volume. Pulse dust collector: 1. It adopts the upper bag extraction method. When changing bags, the skeleton is extracted, and the dirty bags are put into the lower ash hopper of the box and taken out from the manhole. The operating conditions for changing bags are determined. 2. The box adopts an airtight design with good sealing performance. The inspection door uses excellent sealing materials, and during the manufacturing process, kerosene is used for leak detection, resulting in a very low air leakage rate. 3. The layout of the inlet and outlet air ducts is compact, with low airflow resistance. 4. The maintenance and bag replacement can be carried out in separate rooms without stopping the system fan and under normal operating conditions of the system. The filter bag mouth adopts an elastic expansion ring, which has good sealing performance and is firm. The filter bag keel adopts a polygonal shape, which reduces the friction between the bag and the keel, extends the life of the bag, and is easy to unload. 5. Due to the use of segmented air stop pulse spraying for dust cleaning, the cleaning cycle is extended and the energy consumption for dust cleaning is reduced, resulting in a significant decrease in compressed air consumption. At the same time, the fatigue level of the filter bag and pulse valve is correspondingly reduced, thereby doubling the service life of the filter bag and valve plate. 2、 The method to deal with the problem of air leakage in pulse dust collectors. The phenomenon of air leakage in pulse dust collectors may cause the equipment to fail to achieve the expected dust removal effect and meet environmental standards, so it has no meaning. Therefore, air leakage is an important factor affecting the dust removal effect of equipment. So, what factors are related to air leakage in pulse dust collectors, and how to solve this situation? Below, the pulse dust collector manufacturer will explain the reasons and solutions for air leakage in pulse dust collectors. 1. Strengthen the sealing of the pulse dust collector dust removal system and enhance the sealing of the manhole door: The design of the manhole door cover plate should meet the requirements of strength and rigidity. During production, the door frame and door cover plate must be flat. During assembly, sealing strips should be used for sealing, and the door should be tightly pressed with pressure blocks. Common sealing strip structures include "U" and "Y" shapes. Strengthen the sealing of the anti blowing valve: The cleaning energy of the pulse dust collector comes from the anti blowing machine. In order to protect its motor and avoid frequent opening, the anti blowing machine is generally set to a normally open state. If the anti blowing valve is not tightly closed, the positive pressure gas generated by the anti blowing machine during operation will continue to blow into the bag chamber during non cleaning periods, seriously interfering with the normal filtration work of the dust collector. The main manifestations are: sustained work resistance caused by air leakage; During the cleaning process, multiple anti blowing valves leaked air and dispersed energy, resulting in insufficient cleaning energy in the cleaning bag chamber and affecting the cleaning effect. To improve operational efficiency, it is recommended to use sealing rings to seal the anti blowing valve. 2. Optimizing the design and installation of pulse dust collectors. Due to their large volume, pulse dust collectors are usually disassembled, shipped separately, and assembled on site for ease of transportation. Improper on-site installation can easily cause equipment misalignment, and forced installation can result in local deformation, uneven welds, etc; After the equipment is put into operation, under the combined action of wind power, dust cleaning power, and thermal stress, the above-mentioned defects are prone to high stress concentration, leading to local cracking and equipment air leakage. In the design of dust collectors, in addition to considering that the equipment itself has sufficient strength and rigidity, the installation procedure should also be optimized to minimize cumulative installation errors and improve installation quality. 3、 Some basic maintenance methods for pulse dust collectors: 1. If the sealing strip on the inspection door is aging, it should be replaced in a timely manner. 2. During equipment operation, a dedicated person should be assigned to manage and keep operation records. 3. Regularly replenish lubricating oil to the parts of the equipment that require lubrication. 4. The filter bag is a vulnerable part, and users should regularly check the working condition of the filter bag and consider timely replacement based on the degree of damage to the filter bag. 5. If the pulse valve malfunctions, it should be promptly eliminated. If there are impurities, moisture or other foreign objects inside, they should be cleaned in a timely manner. If the diaphragm is damaged, it should be replaced in a timely manner. 6. Management personnel should be familiar with the principle, performance, and usage conditions of dust collectors, and master the adjustment of operating parameters and equipment maintenance methods. 7. Regularly discharge accumulated water from the water separator in the compressed air system. 8. Regularly check whether the pulse cleaning system of the 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. 9. Regularly check the operation of the pneumatic system and ash discharge system, and promptly eliminate any abnormalities found. 10. Regularly check the condition of the cylinder and each flange surface. If any air leakage is found, the sealing ring should be replaced in a timely manner. 11. Regularly check whether the equipment is operating normally based on the fluctuation of resistance during operation. 12. Regularly measure process parameters such as gas volume, temperature, concentration, etc. If any abnormalities are found, the cause should be identified and dealt with in a timely manner. 13. During shutdown, after the process system stops, the dust collector and exhaust fan should continue to operate for a period of time to remove moisture and dust from the equipment. Before the dust collector stops working, repeat the cleaning and unloading operations.
