First of all, during trial operation, a single component of the system must be inspected, and then adaptive operation and partial performance testing must be performed. In daily operation, necessary inspections should still be carried out. The most important thing is to inspect the performance of the bag dust collector. Pay attention to the impact that changes in the load of the host equipment will have on the performance of the dust collector. After the machine is started, be sure to pay close attention to the working conditions of the bag dust collector and make relevant records.

1. Trial operation

During the trial operation of a new bag dust collector, special attention should be paid to checking the following points:

1. The rotation direction, speed, bearing vibration and temperature of the fan.

2. Check whether the processing air volume and the pressure and temperature of each test point are consistent with the design.

3. The installation status of the filter bag, whether the bag has fallen off, loosened, or worn after use, can be judged by visual inspection of the chimney emissions after it is put into operation.

4. Pay attention to whether there is condensation in the bag room and whether the ash discharge system is smooth. Prevent clogging and corrosion from occurring. Serious dust accumulation will affect the production of the host machine.

5. Adjustment of cleaning cycle and cleaning time. This work is an important factor affecting dust collection performance and operating conditions. If the cleaning time is too long, the attached dust layer will be removed, causing leakage and damage to the filter bag. If the dust cleaning time is too short and the dust on the filter bag has not yet been cleared, the resistance will quickly recover and gradually increase if the filtering operation is resumed, ultimately affecting its use effect.

The time interval between two cleanings is called the cleaning cycle. Generally, it is hoped that the cleaning cycle will be as long as possible so that the dust collector can operate under economical resistance conditions. Therefore, dust properties, dust concentration, etc. must be carefully studied, the cleaning cycle and time must be determined according to different cleaning methods, and adjustments must be made during trial operation to achieve better cleaning parameters.

During the start of operation, some unexpected situations often occur, such as abnormal temperature, pressure, moisture, etc., which will cause damage to the new device.

Rapid changes in gas temperature will cause deformation of the fan shaft, resulting in an unbalanced state and vibration during operation. Once it stops running, the temperature drops sharply, and vibration will occur again when it is restarted. _Select different types of fans according to the gas temperature.

The quality of the trial operation of the equipment will directly affect whether it can be put into normal operation. If it is not handled properly, the bag dust collector is likely to lose its effectiveness quickly. Therefore, the trial operation of the equipment must be done carefully and cautiously.

2. Daily operation

In the daily operation of the bag dust collector, due to certain changes in operating conditions or the occurrence of certain failures, the normal operation and performance of the equipment will be affected. Regular inspections and appropriate adjustments must be made in order to prolong the Extend the life of filter bags, reduce power consumption and recover useful materials. Issues that should be noted include:

1. Operation record

Each ventilation and dust removal system must be installed and equipped with necessary test instruments, which must be measured regularly during daily operation and accurately recorded. This can be based on the pressure difference of the system, the inlet and outlet gas temperatures, and the voltage of the main motor. , current, etc. values and changes to make judgments, and troubleshoot in a timely manner to ensure normal operation.

Problems discovered through records include: the working conditions of the dust cleaning mechanism, the working conditions of the filter bags (damage, bag paste, blockage, etc.), and changes in system air volume, etc.

2. Fluid resistance

The U-shaped differential pressure gauge can be used to judge operating conditions: if the pressure differential increases, it means that the filter bag is clogged, water vapor condenses on the filter bag, the dust cleaning mechanism fails, the dust hopper accumulates too much and blocks the filter bag, the gas flow increases, etc. Condition. A decrease in pressure difference means that the filter bag is damaged or loose, the air inlet side pipe is blocked, or the valve is closed. There are leaks in the box or between the sub-compartments, the fan speed slows down, etc.

3. Safety

Bag dust collectors should pay special attention to taking measures to prevent combustion, explosion and fire accidents. When dealing with combustion gases or high-temperature gases, incompletely burned dust, sparks, combustible and explosive gases, etc. often enter the system. Some dusts have the property of spontaneous combustion or are charged. At the same time, the materials of most filter materials are They are easy to burn, and friction can easily produce accumulation of static electricity. Under such operating conditions, there is a danger of combustion and explosion accidents. The consequences of such accidents are often very serious. Fire and explosion prevention measures should be well considered, such as:

⑴ Set up a combustion chamber or spark trap in front of the dust collector to completely burn the incompletely burned dust and gas or capture the sparks.

⑵ Take measures to prevent the accumulation of static electricity, ground each part with conductive materials, or add conductive fibers when manufacturing the filter material.

⑶ Prevent the accumulation or accumulation of dust to avoid spontaneous combustion and explosion of dust.

⑷Before people enter the bag room or pipeline for inspection or maintenance, they must be ventilated to prevent CO poisoning.

At present, the company's main products include stand-alone dust collectors, bag dust collectors, pulse dust collectors, boiler dust collectors, electrostatic precipitators, cyclone dust collectors, exhaust gas treatment equipment, dust removal equipment modifications, dust collector skeletons, dust collector bags, and star unloaders and other dust removal accessories, the products are widely used in large, medium and small enterprises, such as chemical industry, electrical industry, metallurgy, asphalt mixer and other waste gas recovery of particulate dust and fine dust.