FRP tower

FRP stack

FRP stack

Introduction:

This product is a large-scale FRP stack, specifically designed for systematic integration with GRP towers (such as absorption towers, scrubbing towers, and reaction towers). We employ a computer-controlled automated winding molding process, inheriting not only the lightweight and high-strength characteristics of fiberglass but also ensuring a perfect match between the chimney's expansion coefficient and the tower equipment's service life through overall structural design. Whether it's a freestanding stack reaching tens of meters in height or a tail gas emission pipe installed at the top of a tower, we provide a one-stop solution from design and manufacturing to installation, widely serving large-scale environmental protection upgrades and new construction projects both domestically and internationally.

Features:

1. Excellent Corrosion Resistance

As an extension of the fiberglass tower, this stack uses the same corrosion-resistant inner lining (resin-rich layer) as the tower body. Vinyl ester resin or epoxy resin can be selected based on the specific exhaust gas composition of the customer, effectively resisting long-term corrosion from H₂S, SO₂, HCl, and condensing acids, preventing "chimney rain" erosion damage to the inner wall, and ensuring a service life of over 20 years.

2. Lightweight and High-Strength, Reducing Civil Engineering Costs for Large Projects

Fiberglass reinforced plastic (FRP) has a density approximately one-quarter that of steel, but a higher specific strength. In large-span or high-altitude installation scenarios, its lightweight nature significantly reduces the load-bearing capacity of the tower top and the construction cost of the foundation. For renovation projects, hoisting can be completed without large lifting equipment, shortening the construction period by more than 30%.

3. Integrated Structural Design, High System Stability

This stack is not an isolated component but strictly adheres to the consistency of thermal expansion coefficients and connection sealing with the matching FRP tower. Flexible or rigid connection schemes effectively eliminate thermal stress concentration, solving the industry pain point of easy leakage and breakage at the joints of dissimilar materials.

4. Smooth Inner Wall, Low-Resistance Operation

The molded inner surface is extremely smooth with low roughness. This results in low resistance to flue gas flow, reducing fan energy consumption and minimizing scaling and wax buildup, thus reducing the frequency of subsequent maintenance and cleaning.

5. Customized Design to Meet Complex Operating Conditions

Segmented Modular Design: The stack is divided into multiple sections with flange or socket connections, depending on transportation conditions and on-site installation space.

Application:

FRP stack is primarily used in large-scale industrial projects, typically forming a complete waste gas treatment system with FRP (fiberglass reinforced plastic) tower equipment:

  1. Wet Flue Gas Desulfurization (WFGD) System

Scenarios: Thermal power plants, steel plant sintering machines, and boiler tail sections in chemical plants.

Support: Installed at the top or rear of the FRP absorption tower, emitting desulfurized and purified wet flue gas. Since the flue gas temperature is below the dew point, ordinary steel is highly susceptible to corrosion; this product is an essential solution

  1. Chemical Plant Tail Gas Treatment System

Scenarios: Chlor-alkali plants, fertilizer plants, pickling workshops, and fine chemical industrial parks.

Support: Connected to FRP scrubbing towers, drying towers, or reaction towers, emitting highly corrosive gases containing Cl₂, HCl, HF, etc.

  1. Non-ferrous Metal Smelting

Scenario: Acid production systems in copper, lead, zinc, and other smelters.

Supporting Equipment: Used for high-altitude emission of tail gas after drying and absorption towers during the acid production process from smelting flue gas.

  1. Waste-to-Energy Incineration

Scenario: Municipal solid waste incineration plants and hazardous waste disposal centers.

Supporting Equipment: Used in conjunction with semi-dry or wet deacidification towers to emit neutralized flue gas.