China Suppliers Factory for Bolted Steel Tanks in Wastewater/Sewage Treatment 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. This coating system has excellent anti-corrosion properties and is the best choice for wastewater treatment system.
Glass fused to steel is a permanent, molecular bond created by fusing a specially formulated silica-based glass enamel to a base sheet of steel at very high temperatures (around 820°C / 1500°F), combines the advantages of both materials — the strength and flexibility of steel and excellent anti-corrosion properties of glass.
The storage tanks made of GFS plates meet the requirements of municipal sewage tanks. They offer excellent corrosion resistance, a smooth inner wall that is not prone to scaling, and the ability to adapt to fluctuations in water volume (high structural strength requirements).
Material Characteristics of Glass-Fused-to-Steel Tanks
● Low Carbon, High Strength, High Titanium
The steel substrate employed in the construction of glass-fused-to-steel tanks is a special high strength enamelled steel with a unique design and superior properties. Its mechanical properties, including yield strength, tensile strength, and elongation, far exceed those of conventional steel sheets.
Specification
| Coating thickness | 250~450um |
| pH range | Standard grade 3~11; Special grade 1~14 |
| Coating process | Standard 2 coats 2 fire; 3 coats 3 fire available |
| Hardness | 6.0 Mohs |
| Elasticity | 500KN/mm |
| Service life | More than 30 years |
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
Municipal wastewater is a complex mixture characterized by large volume, relatively consistent water quality, good biodegradability, but containing suspended solids, nitrogen and phosphorus, microorganisms, and potentially corrosive gases. GFS bolted tanks have become a classic choice for municipal wastewater storage tanks because their electroplated enamel surface can perfectly solve corrosion, vapor phase corrosion, and coefficient wear simultaneously, and is smooth and not prone to scaling.
Process Flow
The process flow is as follows: "coarse screen → collection tank → fine screen → equalization tank → (MBBR-AAO) → AO → secondary sedimentation tank → magnetic coagulation → ultraviolet disinfection".
The main equipment of the project uses enamel-lined modular tanks, with a production and installation period of 35 days. Manufactured and installed by Lida Technology, the modular enamel-lined steel plates are prefabricated in the factory, packed, and transported to the site. After safe and efficient installation, quality is controllable, and the standardization is high. Compared to concrete tanks, this significantly shortens the project time and improves the project's appearance. It also solves the problems of tight deadlines and urgent tasks in municipal emergency projects.
Frequently Asked Questions
❓ What is a Glass Fused to Steel (GFS) tank?
A Glass Fused to Steel tank is a bolted storage tank made by fusing a specially formulated silica-based glass enamel to a high-strength steel substrate at temperatures around 820°C (1500°F). This process creates a permanent molecular bond that combines the structural strength of steel with the corrosion resistance of glass, making it ideal for wastewater and sewage treatment applications.
❓ What is the expected service life of a GFS tank?
GFS tanks are designed for long-term use with a service life in excess of 30 years. The durable glass enamel coating, with a hardness of 6.0 Mohs and a coating thickness of 250–450μm, ensures outstanding resistance to corrosion, scaling, and wear over decades of operation.
❓ What pH range can GFS tanks handle?
GFS tanks are available in two grades: the standard grade supports a pH range of 3 to 11, while the special grade can handle extreme conditions from pH 1 to 14. This makes them suitable for a wide variety of industrial and municipal wastewater treatment environments.
❓ How quickly can a GFS tank be installed compared to a concrete tank?
GFS tanks offer a significantly faster installation timeline than traditional concrete tanks. For example, a 10,000 m³/day municipal wastewater treatment project can be completed in as little as 35 days. The modular steel plates are prefabricated in the factory and assembled on-site, reducing construction time, improving quality control, and making them ideal for emergency or time-sensitive municipal projects.
❓ Can GFS tanks be relocated or expanded after installation?
Yes. One of the key advantages of GFS bolted tanks is their flexibility. They can be disassembled, relocated, and reassembled at a new site, or expanded by adding additional panels to increase capacity. This makes them a highly adaptable and cost-effective long-term investment for growing facilities.
❓ Why are GFS tanks preferred for municipal sewage treatment?
GFS tanks are the preferred choice for municipal sewage treatment because their electroplated enamel surface simultaneously addresses corrosion, vapor phase corrosion, and coefficient wear. The smooth inner wall resists scaling and bacterial buildup, while the high structural strength accommodates fluctuations in water volume. Combined with a low-maintenance profile and a service life exceeding 30 years, they offer outstanding value for municipal infrastructure.