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河北省泊头市四营开发区 Address: Siying Development Zone, Botou City, Hebei Province
卢经理 Contact: Manager Lu
13463787893 Mobile: 13463787893
0317-8258609 Phone: 0317-8258609
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Bag dust collector for dryer
The pulse bag type dust collector of the dryer air box produced by our company is mainly composed of box, bag room, ash hopper, air inlet and outlet, pillar, ladder, railing, air system, poppet valve system, ash cleaning controller and other parts.
Working principle of the bag filter of the dryer: After the dust-containing flue gas enters the ash hopper from the air inlet, some coarse dust particles fall into the ash hopper due to inertial collision and natural settlement. Most of the dust particles rise into the bag room with the airflow After filtering through the filter bag, the dust particles are blocked on the outside of the filter bag, the purified smoke enters the box from the inside of the filter bag, and then is discharged into the atmosphere through the valve plate hole and the air outlet to achieve the purpose of dust removal; During the process, the dust accumulation on the outside of the filter bag gradually increased, which gradually increased the resistance of the dust collector. When the resistance increases to the preset value or reaches the set time, the ash cleaning controller sends a signal. First, the lift valve is controlled to close the valve plate hole, cut off the filtering smoke air flow, stop the filtering process, and then the electromagnetic pulse valve opens. In a short period of time (1.1 to 0.15s), compressed air with a pressure of 0.5 to 0.7 MPa is injected into the box. The compressed air rapidly expands in the box and flows into the inside of the filter bag, causing the filter bag to deform and vibrate, plus reverse airflow. The dust on the outside of the bag chamber is removed and dropped into the ash hopper. After the ash cleaning is completed, the poppet valve is opened again, and the dust collector enters the filtering state again. The ash cleaning action is automatically controlled by PLC. The ash cleaning control is divided into timing and constant pressure.
Insulation of dust collector: We cover 10-15cm thick insulation layer (such as asbestos) for the air inlet duct and casing of the bag filter of the dryer, and configure a reliable air-locking device at the ash discharge to prevent cold air from entering the dust removal. Device inside.
Dust collector reheating measures: In some areas, dust removal not only requires heat insulation. When the heat insulation is done well, electric heaters can be installed on the air intake duct and in the ash hopper, and a thermocouple temperature controller is configured to remove dust from the dryer bag. The gas of the device is maintained at a suitable temperature. When the gas temperature exceeds the set value, the heating system is automatically turned off to prevent damage to the filter bag; when the gas temperature is lower than the set value, the heater is automatically started, which can effectively avoid the problem of dew condensation on the dust collector.
The company recommends that when choosing a bag filter for the dryer, we must pay attention to the anti-condensation and dust removal of the dust collector, otherwise some problems such as low dust removal rate, high failure rate, and poor dust removal effect will occur during the operation of the dust collector. . Based on our many years of experience in the treatment of smoke and dust in dryers, our company has developed bag dryers for dryers that are widely used by customers.
Due to the different models and operating conditions of dryers from various manufacturers, they must be selected and matched according to specific conditions in order to obtain satisfactory dust removal results. For the selection and design of dryer dust removal equipment, please contact our technical staff.
The company mainly produces stand-alone dust collector, bag dust collector, pulse bag dust collector, bag dust removal equipment, dust bag, filter bag skeleton, electromagnetic pulse valve, dust collector accessories, cyclone dust collector, filter cartridge dust collector