Hydrophobicity Zeolite molecular sieve Manufacturing method of special manufacturing equipment for honeycomb

The utility model relates to the technical field of organic waste gas treatment, in particular to a special manufacturing equipment for hydrophobic zeolite molecular sieve honeycomb body.

Background technology:

In addition to causing serious harm to the environment (such as destroying the ozone layer, causing greenhouse effect and air pollution), volatile organic compounds can also make people feel sick, dizzy, weak limbs in a short time, and even damage the brain and nervous system in serious cases. If the human body is exposed to low concentrations of volatile organic compounds for a long time, it will increase the risk of cancer. Volatile organic compounds have many pollution emission sources, and outdoor emission sources include factory exhaust gas, automobile exhaust gas, combustion of organic materials, fire, etc; Indoor pollution sources include kitchen cooking, smoking, home decoration, volatilization of furniture surface paint and adhesive, etc. Therefore, the control of indoor and outdoor emissions of volatile organic compounds is of great significance for the protection of the environment and human health.

Many studies have shown that zeolite molecular sieve has a very good adsorption capacity for volatile organic compounds, and is similar to the traditional adsorbent Activated carbon Compared with the non combustible, the channel is not easy to block, and the regeneration temperature is low. Hydrophobically treated zeolite molecular sieves can maintain high adsorption capacity of organic matter under high humidity conditions. Generally, zeolite molecular sieves are mostly placed in the adsorption tower in the form of particles, and organics in the air are removed through the contact between the gas flow and the adsorption tower. However, the flow of air in the tower can make particles move relative to each other, resulting in friction, which will cause molecular sieve to pulverize and waste materials. In addition, the pressure drop loss in the adsorption tower is also large, which wastes energy. Zeolite molecular sieves with honeycomb structure can well solve the above problems.

Currently manufactured at home and abroad Honeycomb zeolite molecular sieve There are extrusion method and immersion method. The utility model ZHUANLI, whose publication number is CN101905145A, has manufactured a honeycomb molecular sieve material by extrusion method. Although the manufacturing process is simple, the lattice of the molecular sieve is easy to be damaged under high strength extrusion, thus losing its adsorption capacity. Depending on the carrier, there are two methods of impregnation: one is to impregnate molecular sieve on ceramics, and the other is to impregnate inorganic fibers. When preparing molecular sieve honeycomb by impregnation method, the molecular sieve used as adsorbent is easy to peel off due to the weak binding force between the molecular sieve and the carrier surface, which makes its adsorption efficiency lower and lower and wastes raw materials. Therefore, the existing technology still needs to be improved and developed.