Haixin Plastic products

Part of the requirements for Environmental Protection of injection Molding

publisher: Linda
Time: 2020-09-10
Summary: Injection molding environmental protection
Injection molding is a common process in modern plastic processing and production. Rubber injection molding and plastic injection molding are usually used in products.
In the process of use, if the waste gas produced by this process is not treated effectively, it will cause damage to the atmosphere.
Influence.


The injection molding machine produces organic waste gas in the process of injection molding and heating, the main components of which are dust particles and non-methane total hydrocarbons.
Class and other harmful substances. The waste gas has irritating smell and slightly toxicity, which is of great harm to human health. Nothing.
Styrene, toluene and organic waste gases emitted by tissues will cause serious pollution to the environment and human health.
It caused a lot of damage, so the waste gas from the production line of the plastic factory had to be dealt with carefully.


The following types of equipment are commonly used to treat industrial waste gases on the market:
1. Water spray packed tower
There are many layers of packing in the packed tower, which can increase the gas-liquid contact area and contact time, and make the tail gas and absorption liquid in the tower.
The pollutants in the waste gas are fully adsorbed by the water in the process of contact with spray water.
The purification effect is good and the cost is moderate.
Spray method has the advantages of simple process and economy, but the dust removal efficiency of spray dust removal method is usually only 30% ≤ 40%.
And because the waste gas is organic, it is insoluble in water, and the molecular size is much smaller than that of droplets, so water spray is used.
The capture efficiency of the method is low, so it is more difficult to dissolve and remove it.

2. Activated carbon filter box
Activated carbon adsorption is developed by using the principle of porosity and attraction of activated carbon. Adopted by this process
The adsorption of activated carbon is based on this property of solid surface, when the porous activated carbon of waste gas and large surface is used.
In contact with each other, the pollutants in the waste gas are adsorbed on the solid surface of activated carbon, thus separated from the gas mixture.
To the purpose of purification.


3. Photodegradation catalytic deodorization equipment
Through the irradiation of ultraviolet light in the equipment, the O2 in the waste gas is rapidly cracked into active O, so as to achieve the purification of the waste gas.
The purpose of deodorization treatment is super good effect and high cost.


There is also a more mature and practical process: water spray tower + UV photooxygen catalytic equipment.

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