Inlet tongue plate for rotary kiln

Abstract

The invention discloses an inlet tongue plate for a rotary kiln. The inlet tongue plate comprises a main body (1), a fixed connecting flange (2) arranged at the top end of the main body (1), a bolt hole (8) in the fixed connecting flange (2), and a guide support plate (5) arranged at the bottom end of the main body (1), wherein the inside of the main body (1) is hollow, and the top end of a hollow part is open; a concave surface (7) and a convex surface (6) which can be clamped together are formed on two opposite side walls of the main body (1). The inside of the tongue plate main body is hollow, so that heat is dissipated quickly; cold air can be blown via the opening of the hollow part for cooling, so that heat of the inlet tongue plate of the rotary kiln is dissipated conveniently, and the service life of the inlet tongue plate is prolonged in a high-temperature calcining environment; the two side walls of the tongue plate main body are provided with the concave surface and the convex surface which are matched with each other, and adjacent tongue plates are clamped together by jointing the convex surface and the adjacent concave surface without merely depending on a ring flange neck for fixing, so that convenience is brought to installation, and a good fixing effect is achieved.

Description

technical field [0001] The invention relates to a cement rotary kiln, in particular to a tongue plate at the entrance of the rotary kiln. Background technique [0002] Rotary kiln In many production industries such as building materials, metallurgy, chemical industry, environmental protection, etc., rotary cylinder equipment is widely used for mechanical, physical or chemical treatment of solid materials. This type of equipment is called rotary kiln. In the application field of rotary kiln, the cement industry has the largest number. [0003] The entrance of the rotary kiln is composed of several tongue plate components assembled on the fixed seat. The existing tongue plate is usually a solid plate type. When used in a high-temperature calcination environment, the heat dissipation is slow. In the cement clinker production process, the tongue plate oxidizes quickly , the service life is short, and the components are fixed only by the flange slot, the connection will be not f...

AI Technical Summary

Problems solved by technology

[0003] The entrance of the rotary kiln is composed of several tongue plate components assembled on the fixed seat. The existing tongue plate is usually a solid plate type. When used in a high-temperature calcination environment, the heat dissipation is slow. In the cement clinker production process, the tongue plate oxidizes quickly , the service life is short, and the components are fixed only by the flange slot, the connection will be unstable, and it will fall off easily, affecting production

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