Technological breakthrough!

In the ultra-large seawater bromine extraction project, the selection of large-scale fans has long been a technical challenge due to the strong acid corrosion. An innovative steel shell lined with fiberglass-reinforced plastic composite fan developed by Anshan Fan Company not only ensures structural strength but also has excellent corrosion resistance. It has been matched with domestic 20,000-ton benchmark projects. Relying on advanced design concepts and high-standard precision manufacturing, it fills the technological gap in the industry and provides high-quality solutions for seawater chemical equipment.

一、Special operating conditions make the selection of fans a major industry challenge。

A 20,000-ton-scale benchmark project for extracting bromine from seawater is currently under construction in China. This project is the largest-scale seawater bromine extraction industrial project in the country and is of great significance for promoting the large-scale and intensive development of the industry. The production conditions for seawater bromine extraction are extremely corrosive. The circulating air contains multiple strong acids such as hydrogen bromide, sulfuric acid, and hydrochloric acid, along with corrosive water mist. This poses extremely high requirements for the anti-corrosion ability, structural strength, and operational stability of the supporting process fans.
For a long time, the industry has lacked a perfect complementary solution. Both of the two mainstream fans have obvious shortcomings, which have restricted the implementation of large-scale projects. Traditional fiberglass reinforced plastic fans have excellent corrosion resistance, but the material limitations result in weak structural strength, large forming difficulty, and poor stability of the super-large models, making them unsuitable for the 20,000-ton production line. Conventional metal centrifugal fans have sufficient mechanical strength and can be made into large models, but they are difficult to withstand the erosion of mixed strong acids and are prone to shell rusting, component damage, and equipment shutdown, increasing the operating costs and production risks of enterprises.

二、Comprehensive design, solving multiple problems in one go

In response to the drawbacks of single-material fans, Anshan Gangfeng Fan Co., Ltd. (hereinafter referred to as Anshan Fan) innovatively developed the first "steel body + fully lined fiberglass reinforced plastic" composite centrifugal anti-corrosion fan in China. It successfully entered this seawater bromine extraction project, filling the technical gap in the industry for large-scale anti-corrosion special fans.
This composite fan integrates the core advantages of both materials, achieving a dual breakthrough in performance. The equipment adopts a steel body to ensure the rigidity and anti-deformation ability of large equipment, solving the problems of difficult large-scale production and easy damage of fiberglass reinforced plastic fans; the inner wall of the machine body is fully covered with fiberglass reinforced plastic lining, which isolates the strong acid medium from directly contacting the metal substrate, balancing the two characteristics of high strength and strong anti-corrosion, and perfectly adapting to the complex working conditions of severe corrosion in seawater bromine extraction.
At the same time, the product has been optimized for maintenance and manufacturing processes to meet the continuous production needs of customers. The equipment is equipped with a non-disassembly impeller replacement bearing structure, simplifying the maintenance process and shortening the downtime. It is combined with labyrinth seals and air cooling box structures, effectively reducing operation and maintenance costs; the entire machine undergoes multiple inspections such as sealingity and vibration degree before leaving the factory, and the rotor undergoes secondary dynamic balance calibration, with a precision reaching the industry's advanced G2.5 level. The operation is low-noise and low-wear, with a longer service life, and the equipment can be quickly installed on-site, helping the project shorten the construction period.

三、Deeply cultivating and accumulating experience, providing protection for customers in multiple industries

The successful implementation of this multi-functional fan is a reflection of Anshan Fan's long-term dedication to the field of anti-corrosion fans. It is precisely because of decades of in-depth research and manufacturing of fans, as well as on-site exploration of various harsh working conditions in different industries, that they have accumulated rich experience in the design, production and implementation of special fans, and accurately grasped the pain points of different industry equipment applications. According to the working conditions of different industries to adjust the fan material, structure and process parameters, easy to cope with strong corrosion, high temperature, high dust, high load and other extreme production environment, targeted to solve the problem of exclusive equipment.
In the future, Anshan Fan will continue to focus on the research and development of large-scale and high-performance special fans. Relying on a mature R&D system, strict production control and full-cycle supporting services, they will continue to overcome technical difficulties in the industrial fan field, and with high-quality customized products, help various industrial chains reduce costs and increase efficiency, and inject impetus for sustainable development.