Shandong Zhonghan Environmental Technology Co., Ltd.
Shandong Zhonghan Environmental Technology Co., Ltd. is a comprehensive high-tech enterprise integrating environmental technology research, design, production, sales, and maintenance. Committed to improving the human living environment, we advocate environmentally friendly production and aim to build a beautiful home with you.
We specialize in the research, development, and manufacturing of exhaust gas purification equipment, dust handling equipment, and dust purification and recovery systems. Our main products include portable welding smoke dust purification units, multi-filter bag dust collectors, catalytic combustion units, zeolite molecular sieve, RTO regenerative thermal oxidizers, welding smoke purification systems, UV photodecomposition equipment, activated carbon adsorption units, and a range of other exhaust gas purification devices. Additionally, we offer portable polishing dust removal equipment, portable exhaust gas purification units, large-scale dust and exhaust gas purification systems, integrated central welding smoke purification units, various dust collectors, organic gas concentration and adsorption purification units, organic gas catalytic combustion desorption purification units, exhaust gas concentration and adsorption catalytic desorption purification units, exhaust gas condensation recovery purification units, exhaust gas absorption purification units, and odor purification and combustion-type purification units.
Zeolite转子一体机 is the new generationVOCs treatment equipment is a method that organically combines an adsorption concentration unit with a thermal oxidation unit. The zeolite wheel concentration adsorption device utilizes a continuous, three-step temperature change adsorption-desorption-concentration program, concentrating low-concentration, high-volume organic waste gases into high-concentration, low-flow concentrated gases. Its equipment characteristics are suitable for treating large-volume, low-concentration waste gases containing various organic components.
Through the rotation of the wheel, the desorption of the gas and the regeneration of the wheel can be simultaneously completed on the wheel.VOCs emissions are effectively adsorbed into the zeolite after passing through a hydrophobic zeolite concentrator wheel, achieving the removal goal. The clean gas of volatile organic compounds adsorbed by the zeolite is directly emitted into the atmosphere through the chimney. The wheel rotates at a speed of 1-6 rotations per hour, simultaneously transferring the adsorbed VOCs to the desorption zone. A small amount of heated gas is used in the desorption zone to desorb the VOCs, after which the zeolite wheel rotates back to the adsorption zone for continuous adsorption of VOC emissions. The desorbed concentrated organic emissions are then sent to an incinerator for combustion, converting them into carbon dioxide and water vapor, which are emitted into the atmosphere.
But in different actual application scenarios, the composition of exhaust gas is complex and prone to high boiling points.VOCs residue aggregation and smoldering phenomena.
High-boiling-point VOCs residue polymer
Waste gas treatment involves high boiling point substances.When dealing with VOCs substances, if the desorption heat is insufficient, the adsorbent material will not be fully desorbed, leading to the accumulation and retention of the adsorbent near the adsorption site. Over time, this can result in aggregation, which in turn blocks the zeolite adsorption sites, weakening the adsorption efficiency in that area. To facilitate the desorption of high-boiling-point VOCs adsorbed in the zeolite, the following suggestions are provided:
(1) Install front-end high-boiling point VOCs removal equipment
To avoid high boiling pointsDifficulties in desorption due to VOCs adsorption can be addressed by adding a pre-filter fabric or activated carbon filter before the exhaust enters the adsorption wheel, or by installing a dehumidifier or condenser, etc., to remove high-boiling-point VOCs first.
(2) Increase desorption heat capacity
Method one to increase the desorption temperature suggests controlling the temperature atBetween 180-200°C, not exceeding 220°C, to avoid excessive residual heat causing cooling and affecting the adsorption section's performance; another method is to increase the desorption air flow rate and reduce the concentration ratio, which can achieve a thorough desorption effect.
Product Features:
1. High adsorption and desorption efficiency convert the original high airflow, low concentration VOCs waste gas into low airflow, high concentration waste gas, thereby reducing the cost of downstream final treatment equipment.
2. Zeolite wheel adsorption of VOCs reduces pressure drop, significantly cutting down on electrical energy consumption.
3. Concentration ratios up to 5-20 times, significantly reducing the size of post-processing equipment and lowering operation costs.
4. The overall system features pre-assembled and modular design, requiring minimal space while offering continuous and unmanned operation modes.
5. The waste gas after wheel concentration can meet the national emission standards.
Industry Adaptability: Particularly suitable for high volume, low concentration environments, including: printing, large-scale spray painting workshops, furniture, chips, liquid crystal.LED industrial production sites.
