Zeolite roller
The main component of the zeolite concentration wheel is zeolite molecular sieve, made of aluminum silicate, high temperature resistance, and safety is effectively guaranteed. The structure of zeolite is similar to crystal shape, and many cavities are formed in the middle of the molecule. The micropore adsorption capacity formed by these cavities Very strong, it has a strong adsorption capacity for high-humidity volatile organic gases, and can maintain the original adsorption efficiency basically unchanged after long-term adsorption and desorption.
The zeolite runner is divided into three areas: an adsorption area, accounting for 5/6 of the entire area , organic gas is adsorbed in honeycomb zeolite, and clean gas is discharged. The area occupying 1/12 of the runner is the desorption area, which is heated at high temperature to volatilize the VOC in the gas at high temperature; The high temperature area of the runner is cooled, and as the source gas of the desorption gas, it is preheated by the heat exchanger for desorption, and then enters the RTO for combustion for treatment. The area ratio of adsorption zone /desorption zone/cooling zone=10:1:1; the zeolite molecular sieve rotor adsorption concentration system uses the continuous process of adsorption-desorption concentration-cooling to adsorb and concentrate VOCs waste gas. The basic principles are as follows: 1. The zeolite molecular sieve runner is divided into three functional areas: adsorption zone, desorption zone and cooling zone, and the zeolite molecular sieve runner runs continuously in each functional zone. 2. After passing through the pre-filter, the exhaust gas is sent to the adsorption area of the zeolite molecular sieve runner. In the adsorption zone, the VOCs in the organic waste gas are adsorbed and removed by the zeolite molecular sieve, and the organic waste gas is purified and discharged from the zeolite molecular sieve runner treatment area. 3. The VOCs adsorbed in the molecular sieve runner are desorbed and concentrated in the desorption zone after being treated with hot air with a small air volume at about 200°C, and the concentration ratio is generally 5 to 20 times. 4. The desorbed zeolite molecular sieve wheel is cooled in the cooling zone. The air passing through the cooling zone is used as regeneration air after being heated to achieve the effect of energy saving.
The zeolite runner concentration system is equipped with online pressure monitoring, and is linked with the natural gas supply of the original organic waste gas and organic waste gas incineration system. When the pressure reaches the set value (to be determined during equipment debugging), the system immediately sends out an alarm to remind the operator The system is cleaned, and at the same time the original organic waste gas supply is cut off, and the original organic waste gas is automatically switched to the emergency mode; the device handed over to the site is a pre-installed and tested module type, ensuring that the on-site installation and commissioning workload is minimized and the installation period is shortened;
The zeolite runner concentration system is reserved with an inspection port. The size of the inspection port is ≥600mm (L)×600mm (W). There is a glass observation port on the inspection door. The observation glass is made of 6mm thick double-layer laminated glass. Maintenance lighting; the concentration ratio of the zeolite runner is 20:1;
The zeolite filling in the zeolite runner concentration system is a modular zeolite filling. When a local failure occurs, the local zeolite module can be replaced;
The adsorption area and cooling area of the system are designed for positive pressure, and the desorption area is designed for negative pressure to ensure that the wind pressure in the desorption area is lower than that of the adsorption area and cooling area ; A box is installed outside the wheel, and the box is equipped with a flange interface for connecting the air duct. The box has air ducts leading to each area of the inner runner; the zeolite runner is equipped with a waste solvent, water condensate discharge structure and pipelines, and the exhaust gas will leak from the discharge line.
The specifications of the relevant pipelines are ≥ DN40; the treatment efficiency of the exhaust gas runner is set to ≥ 90%; the driving mechanism, motor and components of the enrichment runner adopt explosion-proof design.
The enrichment rotor does not need to be purged with compressed air; the monitoring points of the enrichment rotor system are shown in the table below: the box has sufficient mechanical strength to adapt to the large air volume characteristics of the unit. Ensure that no matter whether the fan is starting, stopping or running, the air valve is fully open and fully closed during the adjustment process, there is no deformation or vibration of the unit box; the outer surface of the box is beautiful and generous, and there are no scratches, rust spots or indentations on the outer surface; An inspection port is reserved for the casing of the runner, and the height of the inspection port is not higher than 0.5m above the upper surface of the platform, which is convenient for maintenance. The joints between wall panels and wall panels and between wall panels and frames are bolted and glued to ensure airtightness. The inspection door has good sealing performance, and the door frame is sealed with EPDM material; each functional section of the box is set for maintenance The inspection lamp and inspection lamp are installed outside the box and above the inspection door; the inspection lamp switch is in the equipment control area, and the internal illumination of each functional section reaches 500LUX; the adsorption concentration system should be able to realize the system temperature, pressure, adsorption efficiency, and adsorption of adsorption materials. Real-time monitoring of saturation, air volume, etc., and can automatically adjust fan, air volume and other related parameters according to different working conditions to ensure safe, reliable, and economical operation of the system, and is linked with exhaust gas and natural gas supply of the incineration system. When the above parameters in the device are higher than the set value, the system will immediately send out sound and light alarm to remind the operator to check the equipment; Supply, turn on the automatic deflation function of the incineration system, and the exhaust gas treatment system will automatically switch to emergency mode.
