The cleaning principle of stainless steel bag dust collector
Stainless steel bag filter is an efficient and environmentally friendly dust removal equipment, which is widely used in various industrial dust control fields. Its core component is the filter bag, which separates the dust from the air through the filtration effect of the filter bag to achieve the purpose of dust removal. However, over time, a layer of dust can accumulate on the surface of the filter bag, which will not only affect the effectiveness of dust collection, but also reduce the operating efficiency of the equipment. Therefore, it is necessary to clean the stainless steel bag dust collector regularly. This article will introduce the cleaning principle and related knowledge of stainless steel bag dust collector.
First, the principle of ash cleaning.
The cleaning of stainless steel bag dust collector mainly relies on pulse backflush technology. When the dust accumulated on the surface of the filter bag reaches a certain thickness, the backflush system starts to work, by blowing a high-pressure air into the inside of the filter bag, the filter bag instantly expands and shakes, so as to shake off the dust attached to the surface of the filter bag. The dust falling into the ash hopper is discharged through the ash discharge valve, and finally the purpose of ash cleaning is achieved.
Second, the ash cleaning process.
1.Heartbeat.
When the dust thickness on the surface of the filter bag reaches a preset value, the pressure sensor sends a signal to inform the control system that cleaning is required.
2.Close the air intake.
After receiving the signal, the control system will close the air inlet of the dust collector, so that the air flow inside the equipment will be stopped.
3.Reverse blowing and cleaning.
The control system activates the backflush system, blowing high-pressure air into the inside of the filter bag, so that the filter bag expands and shakes instantly, so as to shake off the dust attached to the surface of the filter bag.
4.Dust is discharged.
The shaken dust is discharged through the ash hopper and ash discharge valve, and finally the purpose of ash cleaning is achieved.
5.Resume operation.
After the cleaning is completed, the control system reopens the air inlet to return the equipment to normal operation.
3. Factors affecting the effect of ash cleaning.
1.The pressure and flow rate of high-pressure air: In the process of pulse backblowing, the pressure and flow rate of high-pressure air directly determine the cleaning effect. If the pressure or flow rate is insufficient, it will lead to incomplete cleaning of the filter bag; Otherwise, it may cause damage to the filter bag. Therefore, the pressure and flow rate of high-pressure air need to be adjusted according to the actual situation.
2.Filter bag material and structure: The adhesion of filter bags of different materials and structures to dust is different, which will also affect the ash cleaning effect. For example, filter bags with smooth, thin, and fine surfaces are easier to clean. Therefore, when selecting filter bags, the appropriate material and structure should be selected according to the actual working conditions.
3.The nature of dust: the adhesion of different properties of dust to the filter bag is different, which will also affect the ash cleaning effect. For example, dust with high viscosity and small particle size can easily clog the filter bag, making it difficult to clean the ash. Therefore, it is necessary to pre-treat the dust or select the appropriate filter bag material and structure.
4.Design and configuration of the backflush system: The design and configuration of the backflush system also have a great influence on the cleaning effect. For example, the proper position, number and size of nozzles, the direction and speed of the back-blowing airflow, etc., will affect the cleaning effect. Therefore, when designing and configuring a blowback system, it needs to be fully tested and optimized.
5.Equipment operating conditions: Equipment operating conditions will also affect the cleaning effect. For example, the operating temperature, pressure, humidity, etc. of the equipment will affect the adhesion of the dust and the performance of the filter bag, which in turn will affect the cleaning effect. Therefore, it is necessary to maintain stable operating conditions during the operation of the equipment.
To sum up, the cleaning principle of stainless steel bag filter is realized by pulse backflushing technology. During the cleaning process, the control system controls the opening and closing of the air inlet and the blowback system according to the signals from the pressure sensor. The factors that affect the cleaning effect include the pressure and flow rate of high-pressure air, the material and structure of the filter bag, the nature of the dust, the design and configuration of the backflush system, and the operating conditions of the equipment. In practical application, it is necessary to comprehensively consider and adjust and optimize according to the actual situation to ensure the dust removal effect and operation efficiency of the equipment.