The problem of punching holes on plastic woven cloth in cement packaging machine woven bags, no matter how a layer is applied on the plastic film, will cause sealing. At present, when using coated woven bags, it is necessary to ensure that the cement packaging machine exerts a certain pressure during the grouting process, fills it in a timely manner, and prevents moisture during transportation, loading and unloading, and storage. Only on the surface of microporous composite plastic bags, there are no other alternative technologies. The exhaust problem of packaging machines such as composite woven bags not only meets the basic functions of cement packaging, but also solves the problems of cement filling, high temperature, and humidity. The key to solving these technical problems is to drill holes in the laminated woven bags.
Most cement companies use cement filling in the cement grouting process of cement packaging machines, but the problem has not been well solved. One is the impact on filling efficiency, and the other is not the weight ratio. In order to cover the woven bag with film, it is necessary to consider the handling, operation, dust leakage, and moisture during transportation. Exhaust holes have a large number of holes, good exhaust performance, and high filling efficiency. However, cement has severe gas leakage, low moisture resistance, few air holes, poor exhaust performance, low filling efficiency, but low moisture resistance in cement filling.
The cement packaging machine equipped with a belt comes into contact with the exhaust hole during the belt conveying process and automatically closes, effectively solving the storage process of cement packaging in terms of transportation and moisture resistance.
Due to different cement production processes and equipment levels, the temperature of the cement silo also varies, generally between 100 ℃ and 50 ℃. If the quality of the fabric composite woven bag meets the GB8974 standard, it can completely solve the problem of high-temperature cement packaging. When the storage temperature of cement is high, the thickness of the film bag can be appropriately increased. If we blindly pursue lower costs, inferior plastic raw materials, excessive additives, unstable process conditions, equipment level, and meeting product quality requirements, even thicker plastic woven bags cannot fundamentally solve the problem of high temperature in packaging. Attention should also be paid during the use of putty powder production lines and dry powder mortar packaging machines.
