Product Introduction

impact idler, the impact idler is used at the receiving area of the belt conveyor to reduce the impact of falling materials on the conveyor belt. It is a type of idler mainly developed for corrosive environments such as coal washing plants, coking plants, and chemical plants. Its own toughness is more than 10 times that of ordinary metals, and its service life is five times that of traditional column shoes. It is corrosion-resistant, flame-retardant, and anti-static. It is widely used in mining due to its light weight and other features. The special polymer material for the roller body of the idler has mechanical properties similar to bronze, excellent wear resistance, and good self-lubricating performance, which will not damage the belt. The anti-corrosion performance of the buffer idler roller is excellent. The roller body and sealing parts are all made of high molecular materials and are corrosion-resistant. When used in corrosive environments, its service life can reach more than five times that of ordinary idlers.

Performance and Advantages

The buffer idler is light in weight and has a small rotational inertia. The special polymer material for idlers is light in weight, with a specific gravity of one seventh that of steel. The idlers made of this material weigh about half as much as ordinary idlers, have a small rotational inertia, and the friction between the idlers and the belt is small.

Purpose

Buffer idlers are installed below the receiving section of the conveyor to reduce the impact of materials on the conveyor belt during unloading, thereby extending the service life of the conveyor belt. Buffer support

The spacing of the rollers is generally 100 to 600 millimeters.

Standard diameter parameter

In terms of installation, buffer idlers should first increase the installation density; Second, conduct regular inspections and replace damaged rollers in a timely manner. For conveyor belts with a large drop in material discharge, it is recommended to install a buffer air lock and replace the buffer idlers with buffer beds. When making a purchase, the following points should be noted based on the characteristics of the buffer idlers: radial runout of the idlers, flexibility of the idlers, axial play, dust-proof performance of the idlers, water-proof performance, axial load-bearing performance of the idlers, and impact resistance of the idlers, etc.

Installation and purchase

Due to the impact of the grinding balls, the surface of the liner undergoes plastic deformation along the load direction and presents a flat and uniform fracture mode. In addition, the high-strength and hard ferrochrome carbides limit the deformation area of the material, making the martensitic phase a weak link and the main area for material failure.

When the worn surface is further magnified, there are many tiny holes distributed on the surface of the liner. The main reason for this phenomenon is that the wet ball mill is a corrosive wear environment. After the base structure is corroded, even if the carbides are extremely hard, the base structure has no adhesion foundation. Under the alternating load of the grinding balls and abrasives, it will cause peeling and shedding. This is a very important reason for the relatively short service life of the inner lining plate of the wet ball mill. By using the bimetallic liquid lost foam composite casting method, high-chromium cast iron/carbon steel bimetallic lining plates were successfully trial-produced and successfully applied to the 3.6-meter iron ore wet ball mill, completing a nine-month full-condition test. In the service environment of wet ball mills, bimetallic liners possess the high strength and high toughness of eutectic high-chromium cast iron, as well as the high toughness and high ductility of ferrous steel. The weight loss results show that the relative wear resistance coefficient of bimetallic liners is three times that of the original alloy steel liners

Correct choice

The correct selection of buffer idlers for belt conveyors. The application of idlers in belt conveyors is of great significance. They support the conveyor belt and bear the weight of the materials. From this, it can be seen that the role of idlers is very important. Therefore, the structural performance of the idler roller becomes even more important. The special polymer material for buffer idlers is light in weight, with a specific gravity of one seventh that of steel. The idlers made of this material weigh about half as much as ordinary idler parts, have a small rotational inertia, and the friction between the idlers and the belt is small, effectively reducing the friction between them. Reducing the spacing of the idlers can decrease the simulated friction coefficient, but the total resistance will increase. Except for the unloading point where it is to protect the belt, the density of the idlers in the general load-bearing section should not be increased. In addition, the rubber rings of the buffer idlers are wear-resistant and have a long service life. The special polymer material for the roller body of the idler has a performance similar to that of bronze, with excellent wear resistance and good self-lubricating properties, which will not damage the belt. There are many types of buffer idlers, such as spring plate type, buffer ring type, strong buffer type, and so on. So when making a choice, one must choose appropriately. When choosing idlers, pay attention to the radial runout of the idlers, their flexibility, and the axial play. At locations where the material drop is more than six meters, we should choose buffer idlers. This can not only effectively reduce the impact and wear of the belt materials, but also prevent the belt from being torn by hard objects. From this, it can be seen that idlers are of great significance to belt conveyors. Choosing good idlers can ensure the normal operation of production and better improve efficiency.