Stainless steel screw conveyor: Sealing and thermal compensation technology ensures efficient and stable transportation

In the field of modern industrial automation, stainless steel screw conveyor, as an important material conveying equipment, is widely used in food processing, chemical industry, pharmaceutical industry, metallurgy and other industries. Its unique structural design can not only efficiently and continuously complete the conveying tasks of powdered, granular and small pieces of materials, but also has excellent corrosion resistance and high temperature resistance. It is particularly worth mentioning that the special sealing structure and thermal compensation function adopted by the stainless steel screw conveyor provide a solid guarantee for the stable operation of the equipment in highly corrosive media or high temperature environments.

Special sealing structure: guarding the internal safety of the equipment
The working environment of stainless steel screw conveyors is often complex and changeable, especially when dealing with corrosive media or high-temperature gases, which puts extremely high demands on the sealing performance of the equipment. If the traditional conveyor is not sealed tightly, it will not only cause material leakage and pollute the environment, but also allow corrosive substances to invade the interior of the equipment, accelerate the corrosion of components, and shorten the life of the equipment. To this end, modern stainless steel screw conveyors adopt an innovative sealing structure design to effectively solve this problem.

This special sealing structure usually includes double or multiple sealing rings and sealing gaskets made of corrosion-resistant materials. Among them, the double sealing ring design can form a reliable barrier inside and outside the equipment. Even if the first layer of seal leaks slightly due to wear or pressure changes, the second layer of seal can immediately work to prevent further penetration of the medium. The choice of corrosion-resistant materials, such as polytetrafluoroethylene (PTFE) or special rubber, ensures the long-term stability and durability of the seal under extreme conditions. In addition, some high-end models are also equipped with an automatic lubrication system to regularly lubricate the sealing ring, reduce friction, and further extend the life of the seal.

Thermal compensation function: adapt to the challenge of high-temperature materials
When conveying high-temperature materials, such as hot sand, molten plastic or high-temperature slag, stainless steel screw conveyors face another major challenge-thermal deformation. As the temperature of the material increases, key components such as the conveyor housing and screw shaft will deform due to thermal expansion and contraction, which not only affects the conveying efficiency, but may also cause equipment failure or even safety accidents in severe cases. Therefore, having a thermal compensation function has become the key to the stable operation of stainless steel screw conveyors in high-temperature environments.

The thermal compensation function is mainly achieved through two mechanisms: one is to use retractable connecting parts, such as bellows or sliding bearings, which can freely expand and contract within a certain range, absorb the length changes caused by temperature changes, and maintain the overall stability of the conveying system; the other is to design a reasonable thermal expansion gap to ensure that under extreme temperatures, there will be no excessive stress between equipment parts due to close contact, thereby avoiding damage. In addition, some advanced models also integrate intelligent temperature control systems, which effectively control the operating temperature of the equipment by monitoring the material temperature and automatically adjusting the flow of the cooling medium, further reducing the impact of thermal deformation.

Comprehensive benefits: high efficiency, safety and environmental protection
The stainless steel screw conveyor, with its special sealing structure and thermal compensation function, not only significantly improves the efficiency and stability of material transportation, but also effectively ensures the safety and cleanliness of the production environment. Under the harsh test of corrosive media or high-temperature gases, the equipment can still maintain a good operating state, extend the maintenance cycle, and reduce operating costs. At the same time, strict sealing measures effectively prevent material leakage and reduce environmental pollution, which is in line with the modern industry's pursuit of green and sustainable development.