China Suppliers GFS Tanks for Sludge Storage - Corrosion-Resistant and Durable Factory-Direct Solutions
Description
The Glass fused to steel (GFS) tank is a kind of bolted storage tank made from two materials: glass and steel. High-strength TRS (titanium-rich steel) plates and enamels are perfectly fused at high temperatures to form a highly inert inorganic glaze layer. Based on the coating technology, it combines the advantages of both materials — the strength and flexibility of steel and excellent anti-corrosion properties of glass.
Sludge storage tanks' requirements are different from the different application. For sewage water treatment, the storage tanks pay more attention to corrosion prevention, heat preservation, and extending service life. For subway sludge, oil drilling and other fields, it places greater emphasis on wear resistance, explosion prevention, and rapid relocation.
Why Choose Us
LIDA's glass fused to steel (GFS) bolted tanks are the classical choice for sludge/mud storage. They are composed mainly of enamel panel, special sealant and self-locking bolts, etc. The steel plates are overlapped, bolted together and sealed with high performance seals. All the bolt heads are plastic-capped to provide protection against corrosion in the process environment. Mastic is extruded between the panels and the bolt heads seal the bolt shank to prevent contact with process fluids.
Sludge often contains sand, salt, acidic and alkaline substances, and microbial metabolic products, which can easily cause wear and corrosion to the tank. Meanwhile, sludge may produce odors, leachate, and harmful gases during storage, and must meet environmental protection requirements. GFS tanks are an ideal choice to meet all the requirements.
Features Of Glass Fused To Steel Tanks
Fast installation and short construction period
Excellent anti-corrosion properties
Low construction environment requirements
Strong temperature adaptability
Wide range of applications, seamlessly integrated to form assembled reactors
Aesthetically pleasing appearance
Flexible for relocation, expansion and recycling
Simple maintenance and service life in excess of 30 years
Project
Project: GFS storage tanks for subway slurry project
Specification: D9.93 x H7.2m | Volume: 500m³ × 3pcs
Location: Beijing City, China
Installation Period: 5 Days
The Design of Subway Sludge Storage Tank
Subway slurry (mainly shield slurry) is a fluid formed by mixing rock and soil with water, bentonite, foam and other additives during shield tunneling. The core characteristics are high sand content and high viscosity. LIDA employs a design where the storage tank is directly fixed to the ground via reinforcing stiffener. Once the sludge accumulates in the storage tank, it won't leak out from the cracks without foundation as its high viscosity.
Project: Epoxy coated steel tanks for slurry/mud storage
Specification: D10.7 × 4.8m × 5pcs | D6.11 × 4.2m × 2pcs
Volume: 393m³ × 5 | 109m³ × 2 | Total Volume: 2,183m³
Frequently Asked Questions
Q What is a Glass Fused to Steel (GFS) tank?
A Glass Fused to Steel (GFS) tank is a bolted storage tank that combines high-strength TRS (titanium-rich steel) plates with glass enamel coatings. The two materials are fused at high temperatures to form a highly inert inorganic glaze layer, resulting in a tank that offers both the structural strength of steel and the corrosion resistance of glass.
Q Why are GFS tanks suitable for sludge storage?
Sludge typically contains sand, salt, acidic and alkaline substances, and microbial metabolic products that cause wear and corrosion. GFS tanks are ideal because their glass enamel lining provides outstanding resistance to corrosion and wear, while the bolted steel structure ensures long-term durability, leak prevention, and compliance with environmental protection standards.
Q How long is the service life of a GFS bolted tank?
With proper maintenance, LIDA's Glass Fused to Steel bolted tanks are designed to deliver a service life in excess of 30 years. The combination of the glass enamel coating and high-strength steel structure ensures lasting performance even in harsh chemical and environmental conditions.
Q How quickly can a GFS bolted tank be installed?
One of the key advantages of GFS bolted tanks is their fast installation. For example, three 500m³ tanks (D9.93 × H7.2m) for the Beijing subway slurry project were completed within just 5 days. The modular bolted panel design significantly reduces construction time compared to traditional welded or concrete tanks.
Q Can GFS tanks be relocated or expanded after installation?
Yes. The bolted modular construction of GFS tanks makes them highly flexible. They can be disassembled and relocated to a new site, expanded by adding additional panels, or recycled at the end of their lifecycle — making them a cost-effective and sustainable long-term storage solution.
Q What makes LIDA's subway sludge storage tank design special?
LIDA's subway sludge (shield slurry) storage tanks are specifically engineered for high sand content and high viscosity slurry. The tanks are directly fixed to the ground via reinforcing stiffeners, eliminating the need for a traditional foundation. The high viscosity of the sludge prevents leakage from panel gaps, making this a practical, cost-saving, and reliable design for subway tunneling projects.