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设备技术介绍：

      直立逆流式洗涤塔是一种被广泛应用于酸碱尾气处理，例如HCL、SO2、H2SO4及NH3等酸碱性气体，广泛用于PCB、TFT- LCD等电子行业，金属酸洗电镀行业、垃圾除臭、化工制药等行业废气处理。

      采用洗涤塔处理，技术成熟，运行稳定，处理效果好的工艺方法。该方法可对多种气体成分进行多级连续处理，它的适应性广泛。该工艺适用于处理大气量，高浓度的酸碱性气体。它的特点是最大限度增加气液相接触，增进气液相传质速率，达到高效处理的目的。在化学洗涤吸收工艺中，可根据气体浓度和成分的变化，改变药剂的浓度和投加量，降低运行费用，提高处理效率。

工作原理：

      废气经集气罩、管道收集后，利用离心风机引入洗涤塔处理设备中，再通过离心风机将气体送至烟囱系统，然后对处理之洁净空气进行高空排放。
       洗涤塔处理废气条件是在一定的温度和压力下，设备循环喷淋系统中装置高压喷嘴，填充材料采用高效填充材料，使喷液能达到雾化状态。在气液相开始接触时，组份开始溶解即吸收，随着时间的延长及溶液中吸收质浓度不断增大，吸收速度会不断减慢，而解析的速度却不断增加。接触到某一时刻，吸收速度和解析速度相等，气液相间的传递达到平衡——相平衡。达到相平衡时表示溶解过程停止。因此此时需要更换洁净洗涤液，否则溶液中已被吸收的组份也可能由液相重新逸回气相，形成解析。

设备结构：

        洗涤塔包含以下组成部分：

       ★洗涤塔塔体部分含有：储水槽、填充层、除雾层、视窗及底座等。
       ★循环水部分含有：循环水泵、喷淋系统、螺旋防堵喷嘴、水位控制阀及开关；
       ★加药系统含有：PH在线检测仪、计量泵、药槽储罐、液位传感器等；

直立逆流式洗涤塔特点：
       ★操作方便，无需专员看守，系统自
          动运行       
       ★净化效率95%以上       
       ★设备系统运行稳定
       ★设备压力损失小
       ★占地面积小

应用行业：

      五金加工行业、模具行业、化学工业、食品行业、医药行业、电子工业、汽车行业、粉体行业、橡胶行业、矿业等。

Equipment technical introduction:
Vertical counter-current scrubber is widely used in acid and alkali tail gas treatment, such as HCl, SO2, H2SO4 and NH3, widely used in PCB, tft - LCD and other electronic industries, metal pickling and electroplating industry, garbage deodorization, chemical pharmaceutical industry and other waste gas treatment.
The washing tower is adopted for treatment, the technology is mature, the operation is stable, and the treatment effect is good. The method can carry out multistage continuous treatment on various gas components, and has wide adaptability. The process is suitable for the treatment of atmospheric, high concentration of acid and alkaline gases. It is characterized in that the gas-liquid phase contact is increased to the maximum extent, the mass transfer rate of the gas-liquid phase is increased, and the purpose of high-efficiency treatment is achieved. In the chemical washing and absorption process, the concentration and dosage of the agent can be changed according to the change of gas concentration and composition, so that the operation cost is reduced and the treatment efficiency is improved.
Working principle:

After the exhaust gas is collected through a gas collecting hood and a pipeline, the exhaust gas is introduced into a washing tower processing device by using a centrifugal fan, then the exhaust gas is sent to a chimney system by using the centrifugal fan, and then the treated clean air is discharged at high altitude.
The condition for treat that exhaust gas in the washing tow is that a high-pressure nozzle is arranged in a circulating spraying system of the equipment under a certain temperature and pressure, and the fil material adopts a high-efficiency filling material so that the spraying liquid can reach an atomization state. When the gas-liquid phase comes into contact, the components begin to dissolve, i.e. absorb, and the absorption speed will be slowed down and the resolution speed will be increased with the increase of time and the concentration of absorption substance in the solution. Contact with a certain time, the absorption speed and analytical speed is equal, the transfer of gas-liquid phase equilibrium - phase equilibrium. When phase equilibrium is reached, the dissolution process stops. Therefore, it is necessary to replace the cleaning solution at this time, otherwise the absorbed components in the solution may also escape from the liquid phase back to the gas phase to form an analysis.
Equipment structure:
The washing tower comprises the following components:
★ the tower body of the washing tower includes: water storage tank, filling layer, demisting layer, window and base, etc.
★ the circulating water part contains: circulating water pump, spraying system, spiral anti-blocking nozzle, water level control valve and switch;
★ dosing system contains: ph on-line detector, metering pump, medicine tank storage tank, liquid level sensor, etc.
Characteristics of vertical counter-current washing tower;
★ convenient operation, no need of Commissioner guard, system since
Motion operation
★ purification efficiency is more than 95 %
★ the equipment system runs stably
★ equipment pressure loss is small
★ small occupied area
Application industry:
Hardware processing industry, mold industry, chemical industry, food industry, medicine industry, electronics industry, automobile industry, powder industry, rubber industry, mining industry, etc.