Adsorption and desorption unit of activated carbon
The activated carbon adsorption desorption system is equipped with three automatic, soft, manual, hard and manual control methods. In the safe operation of the equipment, the catalyst room has been set up for the ultra temperature alarm, the adsorption bed ultra micro alarm, fan fault, fan undervoltage alarm, valve fault alarm lamp function. In addition, when the utility model stops working, the running time of the fan can be delayed (the delay time can be set), and the equipment can be ensured to run safely and reliably. Basically control automation, simple operation.
Adsorption and desorption unit of activated carbon
Introduction of activated carbon adsorption desorption device
The activated carbon adsorption desorption system adopts PLC programmable controller to control the equipment. The system has three control methods: automatic, soft, manual, hard and manual. In the safe operation of the equipment, the catalyst room has been set up for the ultra temperature alarm, the adsorption bed ultra micro alarm, fan fault, fan undervoltage alarm, valve fault alarm lamp function. In addition, when the utility model stops working, the running time of the fan can be delayed (the delay time can be set), and the equipment can be ensured to run safely and reliably. Basically control automation, simple operation.
According to the user demand, you can use automatic control or manual control process design, and provide the whole set of equipment after the safety operation process training.
Performance of activated carbon adsorption desorption unit
The activated carbon adsorption desorption adsorption recovery device to a relatively low boiling point solvent, including benzene, toluene and xylene, chlorobenzene, 150 solvent oil; methanol, ethanol; acetone, butanone, methyl acetate; formic acid, acetic acid, solvent gasoline etc.. Activated carbon varieties determined by the solvent, such as the recovery of toluene, the use of toluene activated carbon, the recovery of gasoline, the use of gasoline activated carbon.
VOC organic waste gas into the adsorber before taking the pretreatment process, including the method of bag filtration and washing and humidity, dust removal, high boiling point or easy polymerization of harmful substances, prolong the service life of activated carbon into the activated carbon layer after treatment of VOC, in which the solvent is discharged through the exhaust pipe adsorber adsorption, air VOC organic waste gas in.
The vapor acts as a heat source for desorption of the solvent, forming a mixture of steam and solvent, leaving the active carbon adsorption desorption device and condensing cooling to obtain a mixture of solvent and water. If the solvent is insoluble in water, then the chromatography is used to recover the solvent, such as benzene, toluene, etc. if the solvent is dissolved in water, then the solvent is extracted by distillation, extraction or rectification, such as methanol, acetone, etc..
The device is a fully automatic process control design with unattended operation. Manual process can also be used according to user requirements. VOC organic waste gas pipeline and a valve actuator adopts pneumatic type, meet the explosion-proof solvent recovery process requirements.
Method for using active carbon adsorption desorption device
The process of active carbon adsorption desorption unit can be divided into adsorption stage, desorption stage, cooling stage and drying stage. Using activated carbon adsorption recovery device of work, adsorption and desorption stage is necessary, but the selection of the cooling stage and drying stage, need to be designed according to user selection of activated carbon and recovery of VOC from organic waste gas solvent properties and other specific circumstances.
The adsorption and desorption of two stage design, is in the stage of VOC adsorber adsorption of organic waste gas intake and exhaust valves open the steam valve and the valve closed in the desorption, desorption stage adsorber save valve and desorption steam valve open, VOC organic waste gas intake and exhaust valves closed.
Maintenance and repair of equipment
When the fan starts, it is necessary to make sure that the fan is at least closed before and after the fan is started. After the fan is started, the current is stable, and the blower fan is slowly opened to the required valve position. When the multi typhoon fan is in use, if you want to withdraw one of the typhoon machines, please turn off the fan before and after, to a less air door, and then stop the fan, to ensure that the flow will not flow back.
Adsorber pneumatic valve position switch and power supply hose integrity need regular inspection and maintenance.
Scope of application
Activated carbon adsorption desorption recovery device suitable for petrochemical, pharmaceutical and chemical industry, pesticide, chemical coating industry, coating industry, packaging and printing industry, leather industry, superfine fiber (leather), ultra high molecular weight polyethylene fiber (PE fiber) exhaust gas purification and other industries, the adsorption of the organic matter in the exhaust gas recycling and reuse to reduce consumption, reduce pollution.