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技术基础认知
Basic understanding of technology
沸石转轮的工作奥秘
The working mystery of zeolite wheel
沸石转轮是一种高效的废气浓缩设备，其核心部件是由沸石分子筛制成的转轮。沸石分子筛是一种具有规则微孔结构的硅铝酸盐晶体，拥有巨大的比表面积，这使得它对 VOCs 具有极强的吸附能力。转轮被划分为吸附区、脱附区和冷却区三个功能区域。
Zeolite rotary wheel is an efficient exhaust gas concentration equipment, and its core component is a rotary wheel made of zeolite molecular sieve. Zeolite molecular sieve is a type of aluminosilicate crystal with a regular microporous structure and a huge specific surface area, which makes it highly capable of adsorbing VOCs. The wheel is divided into three functional areas: adsorption zone, desorption zone, and cooling zone.
当工业废气通过预处理装置，去除其中的颗粒物、油雾等杂质后，进入沸石转轮的吸附区。在吸附区，废气中的 VOCs 分子在范德华力和静电引力的作用下，被吸附在沸石分子筛的微孔内，从而实现废气的初步净化。经过吸附净化后的气体，达到排放标准，可直接排放到大气中。随着转轮的缓慢转动，吸附了 VOCs 的区域进入脱附区。在脱附区，通过引入少量经过加热的热风，使沸石分子筛的温度升高，VOCs 分子的热运动加剧，从而克服吸附力从沸石微孔中脱附出来，实现沸石的再生。脱附后的高浓度有机废气被收集起来，进入后续处理环节。为了使脱附后的沸石转轮能够再次投入吸附工作，转轮继续转动至冷却区，利用常温的空气或其他冷却介质对其进行冷却，使其恢复到适宜的吸附温度。
When industrial waste gas passes through the pretreatment device to remove impurities such as particulate matter and oil mist, it enters the adsorption zone of the zeolite wheel. In the adsorption zone, VOCs molecules in the exhaust gas are adsorbed into the micropores of zeolite molecular sieves under the action of van der Waals forces and electrostatic attraction, thereby achieving preliminary purification of the exhaust gas. After adsorption purification, the gas meets the emission standards and can be directly discharged into the atmosphere. As the wheel slowly rotates, the area that adsorbs VOCs enters the desorption zone. In the desorption zone, a small amount of heated hot air is introduced to increase the temperature of the zeolite molecular sieve, intensify the thermal motion of VOCs molecules, and overcome the adsorption force to desorb from the zeolite micropores, achieving the regeneration of the zeolite. The high concentration organic waste gas after desorption is collected and enters the subsequent treatment process. In order to enable the detached zeolite wheel to be put back into adsorption work, the wheel continues to rotate to the cooling zone and is cooled using room temperature air or other cooling media to restore it to the appropriate adsorption temperature.
RTO 的工作原理
The working principle of RTO
RTO，即蓄热式热力焚化炉，其工作原理基于高温氧化。它主要由燃烧室、蓄热体和切换阀等部分组成。蓄热体通常采用陶瓷材料制成，具有良好的蓄热性能和耐高温性能。
RTO， The working principle of the thermal storage incinerator is based on high-temperature oxidation. It mainly consists of a combustion chamber, a heat storage body, and a switching valve. Thermal storage bodies are usually made of ceramic materials, which have good thermal storage performance and high temperature resistance.
废气首先进入 RTO 系统，通过蓄热体被预热到接近热氧化温度。随后，进入燃烧室进行热氧化反应。在燃烧室内，废气被加热到 760℃以上的高温，其中的 VOCs 被氧化分解成二氧化碳（CO₂）和水（H₂O）等无害物质。氧化后的高温气体在排出过程中，流经另一组蓄热体，将热量传递给蓄热体，使蓄热体升温并储存热量，同时自身温度降低，达到排放标准后排放到大气中。通过切换阀的作用，不同的蓄热体在不同的时间分别进行吸热和放热过程，实现热量的循环利用，大大提高了能源利用效率。
The exhaust gas first enters the RTO system and is preheated to a temperature close to the thermal oxidation temperature through a thermal storage body. Subsequently, it enters the combustion chamber for thermal oxidation reaction. In the combustion chamber, the exhaust gas is heated to a high temperature above 760 ℃, and the VOCs in it are oxidized and decomposed into harmless substances such as carbon dioxide (CO ₂) and water (H ₂ O). The high-temperature gas after oxidation flows through another set of heat storage bodies during the discharge process, transferring heat to the heat storage bodies, causing them to heat up and store heat, while reducing their own temperature. After meeting the emission standards, it is discharged into the atmosphere. By switching the function of the valve, different heat storage bodies undergo heat absorption and release processes at different times, achieving the recycling of heat and greatly improving energy utilization efficiency.地址
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