Spiral feeder is a continuous conveying equipment widely used in metallurgy, building materials, chemical industry, grain and mechanical processing departments.
From the perspective of material displacement direction, spiral feeders are divided into two types: horizontal spiral feeders and vertical spiral feeders. They are mainly used for horizontal conveying and vertical lifting of various loose materials such as powders, granules, and small pieces. This machine is not suitable for conveying special materials that are prone to deterioration, high viscosity, clumping, high temperature, pressure resistance, and high corrosiveness.
A spiral feeder generally consists of three main parts: the feeder body, the inlet and outlet, and the driving device; The spiral blades of a spiral feeder come in three forms: solid spiral surface, belt spiral surface, and blade spiral surface. Among them, blade spiral surface is relatively less commonly used and is mainly used for conveying materials with high viscosity and compressibility. This type of spiral surface not only completes the conveying operation, but also has the functions of mixing and blending the materials.
Compared with other feeding equipment, the spiral feeder has the advantages of small overall cross-sectional size, good sealing performance, stable and reliable operation, the ability to load and unload materials at multiple points in the middle, safe operation, and easy maintenance.
The ambient temperature for the use of spiral feeders is usually -20 to 50 ℃; Among them, the temperature of the material conveyed by the horizontal spiral feeder should be less than 200 ℃; The inclination angle β of the conveyor should generally be less than 20 °; The conveying distance is generally less than 40m, and the maximum is not more than 70m. For vertical spiral feeders, the temperature of the conveyed material is generally not greater than 80 ℃, and the vertical lifting height is not more than 8m.
Given the application scope and functional characteristics of the spiral feeder, users should fully consider, balance, and select reasonably based on the usage environment and material conveying situation when selecting, in order to avoid unnecessary troubles and losses.
The spiral feeder is a nationally standardized product. The GX, LS, and LC spiral feeders are all universal feeding equipment with mature and stable technology that has gradually become standardized.
The GX type spiral feeder has seven specifications of spiral diameter, including 150, 200, 250, 300, 400, 500, 600mm, etc. The shortest body is 3m, the longest can reach 70m, and the step difference is 0.5m. According to different on-site needs, corresponding conveying systems can be formed for one-way conveying with horizontal or inclined angles less than 20 °.
The spiral diameter of LS type spiral feeder is 100-1250mm, with eleven specifications, and there are two driving modes: single end drive and double end drive; The LS type spiral feeder has a length of 0.5m and can be assembled into corresponding conveying systems according to different site requirements. Like the GX type spiral feeder, it is used for one-way conveying with horizontal or inclined angles less than 20 °.
The LC type vertical spiral feeder is suitable for vertically or with a large inclination angle to transport dry materials in powder or granular form, with low viscosity and a loose density of 0.5-1.3. The LC type vertical spiral feeder has several standardized specifications such as spiral diameter of 200, 250, 315, etc. The maximum lifting height generally does not exceed 8m, and the height of the machine body is adjusted every 0.5m. According to different on-site needs, corresponding lifting and conveying systems can be formed.
Main technical specifications for LC type vertical spiral feeder

LS type spiral feeder specifications and technical parameters table