A trolley grate plate of a ring cooler

Abstract

A trolley grate plate for an annular cooler installed on the trolley body; the grate plate includes a grate plate base body and a cover plate integrally formed with the grate plate base body; the cover plate is arranged on the opposite ring of the grate plate The front end of the moving direction of the cooler, and has a first predetermined distance from the previous grate plate in the vertical direction; the first predetermined distance is smaller than the particle size of the material transported by the grate plate; the grate plate base relative to the moving direction of the ring cooler The angle between the front end surface and the bottom surface of the grate plate base is an obtuse angle; the angle between the rear end surface of the grate plate base relative to the moving direction of the ring cooler and the top surface of the grate plate base is an acute angle; There is a second predetermined distance in the horizontal direction; the second predetermined distance is the minimum safe distance between the grate plate base and the previous grate plate in the horizontal direction, and is smaller than the width of the cover plate and greater than the mutual distance between the grate plate when discharging. Interference critical distance. The invention provides a trolley grate plate of an annular cooler, which is used to solve the problem of material leakage between the grate plates.

Description

technical field [0001] The invention relates to an annular cooler, in particular to a trolley grate plate of an annular cooler. Background technique [0002] In the prior art, there are mainly three methods for preparing pellets, namely: the method of producing pellets in a shaft furnace, the method of preparing pellets by a belt roaster, and the method of preparing pellets by a chain grate-rotary kiln method. Compared with the other two methods, the grate machine-rotary kiln method has many advantages such as good product quality, large single-machine production capacity, and suitable for large-scale production, so it is widely used. [0003] When the rotary kiln is in operation, the materials in the rotary kiln are continuously turned and roasted to meet the process requirements of the output product. The temperature of the oxidized pellets coming out of the rotary kiln can reach about 1200 degrees Celsius, which needs to be cooled by a ring cooler. The pellet temperature...

AI Technical Summary

Problems solved by technology

However, since the grate plate 1a is usually made of cast iron, the welding performance between the grate plate 1a and the steel plate 4a is not good, and it is easy to cause the steel plate 4a to leak

Once the steel plate falls off, the gap between the grate plates 1a will cause the roasted pellets to fall

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