Molded fiberglass biogas digesters have unique advantages. They have better quality, lower cost and higher yields than hand lay-up products. They have lower technical requirements for workers. Compared with SMC technology, they have less investment, low energy consumption, and raw material adaptation. Extensive and so on. The first measure to increase the strength of molded glass steel digesters is that the pool wall structure is composed of three layers from the inside to the outside, including the inner liner, the anti-seepage layer, the prestressed tensile structure layer, and the outer compressive structural layer. The structure is tightly and firmly bonded as a whole.
The prestressed tensile-strength structure layer is made of glass fiber cloth as reinforcement material to ensure high tensile strength and resistance to tensile prestress; the compression-resistant structural layer is made of SMC chopped fiber as reinforcement material to ensure that the glass steel biogas digester is molded. During manufacture, the material can flow and fill the mold, so that the high-strength glass-fiber digester can adapt and realize the molding process.
The force of the biogas digester is mainly subjected to external pressure, and the prestressed tensile-resistant structural layer is set on the tensile force surface of the inner surface of the pool wall, and the compressive stress surface of the outer surface is provided with an anti-compression structural layer, which is more in line with the principle of mechanics. This setting can maximize the need for bending force under the condition of the external pressure of the digester, and maximize the performance of the material.
As a result, the flexural strength and toughness of the biogas digesters are further improved, and the service life of the biogas digesters is increased to over 20 years, especially without increasing the product cost.
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