Detailed introduction of acid mist waste gas treatment scrubber
Acid mist exhaust gas treatment scrubber is also known as acid mist exhaust gas treatment tower, acid mist exhaust gas absorption tower, wet scrubber. Acid mist exhaust gas treatment scrubber is a kind of waste gas purification and treatment environmental protection equipment, mainly used for sulfuric acid, nitrate, hydrofluoric acid , hydrochloric acid and other processes. The acid mist waste gas treatment scrubber has the characteristics of high purification efficiency, compact structure, small footprint, corrosion resistance, aging resistance, light weight, installation, transportation and maintenance.
APPLICATION SCOPE OF ACID MIST WASTE GAS TREATMENT SCRUBBER
The acid mist waste gas treatment scrubber is mainly used for the treatment and purification equipment of acid mist waste gas in enterprises and laboratories, and acid/alkali waste gas is generated in the process of sulfuric acid, nitric acid, hydrofluoric acid, hydrochloric acid, etc.
WORKING PRINCIPLE OF ACID MIST EXHAUST GAS TREATMENT SCRUBBER
Acid mist waste GAS TREATMENT SCRUBBER is an indispensable equipment in acid mist waste gas purification treatment. During the operation, processes such as sulfuric acid, nitric acid, hydrofluoric acid, and hydrochloric acid generate acid/alkaline gas. The exhaust gas enters the high-efficiency packed tower through the power of the induced draft fan, and the absorption liquid is evenly distributed on the nozzle at the upper end of the packed tower. The exhaust gas and the absorbing liquid fully contact the surface of the packing. Due to the high mechanical strength, corrosion resistance, high hollowness and large surface of the packing, the contact area and reaction time between the exhaust gas and the absorbing liquid on the packing surface are long. The purified gas will be full of moisture, and the moisture will be removed by the mist removal device at the top of the tower, and it will be directly discharged into the atmosphere.
The working principle of the acid mist waste gas treatment scrubber is to separate the pollutants in the gas into harmless substances to achieve the purpose of purifying the gas. The packing in the tower is the basic component of the gas-liquid contact, which belongs to the micro-contact countercurrent type. The gas enters the outside of the tower, and the gas enters the packing layer. There are top spray liquid and front spray liquid on the packing layer, and a liquid film is formed on the packing layer. When the pores are in contact with the filler liquid film, it contacts with the filler liquid film for absorption or comprehensive reaction. The packing layer can provide a large enough surface area without causing too much resistance to the gas movement. The absorbed or neutralized gas is collected by the mist eliminator and discharged out of the tower through the air outlet. The wastewater in the reincarnation tank of the acid mist treatment tower is recycled after dosing, and the sediment is removed and transported on time.
ACID MIST WASTE GAS TREATMENT SCRUBBER PROCESS
The acid mist waste gas in the production workshop is collected through the hood, and then enters the alkali scrubbing tower through the pipeline. The alkali washing tower is equipped with a two-layer packing layer and is equipped with a secondary filter device. Sodium hydroxide (hereinafter referred to as alkali) is added to the circulating pool to neutralize the acid mist in the exhaust gas. The secondary spray tower device fully meets the emission standards.
The two-layer packing layer is placed in the tower body and is equipped with a secondary high-pressure water bath device. After the secondary spray device is cleaned, the clean air is discharged through the water filter device.
The acid mist waste gas treatment scrubber is a dust collector that can fully absorb dusty gas and water. The acid mist scrubber has a simple structure and is mainly composed of a main body, an air inlet pipe, an exhaust pipe, a nozzle, a packing layer, a dosing device, a water source (pool) and a water bath circulation system.
It is a dust removal device that can increase the moisture content of a specific container, change the direction of the airflow, reduce the airflow speed, make it mix well with the dust gas, increase the dust/gas ratio, adhere to neutralize and separate the dust from the air.
ADVANTAGES OF ACID MIST EXHAUST GAS TREATMENT SCRUBBERS
1. The acid mist scrubber has simple process, low cost, low operating cost, convenient installation and corrosion resistance.
2. The function is not chaotic, the dust removal efficiency is high, and the desulfurization effect is good.
3. Light weight, easy to install, transport and maintain.
4. Especially suitable for water-soluble dusty gas.
Disadvantages of acid mist exhaust gas treatment scrubbers
1. Not suitable for dry material recycling.
2. If the reincarnation water is not treated well, it is easy to cause secondary pollution.