CN203453699U - Novel expansion joint for hot air duct on cement production line - Google Patents

Abstract

The utility model discloses a novel expansion joint for a hot air duct on a cement production line, comprising an expansion joint (1), and further comprising an A plate (2) and a B plate (3), wherein the A plate (2) and the B plate (3) are respectively arranged on the inner wall of the expansion joint (1) and form an included angle alpha. The novel expansion joint disclosed by the utility model has the advantages that the existing expansion joint is improved, the aggregate of coal milled finished product at the expansion is avoided, and the expansion joint is unnecessary to maintain and replace.

Description

Expansion joint for warm-air pipe on cement production line

Technical field

The utility model is specifically related to the expansion joint for warm-air pipe on cement production line.

Background technique

At present, on cement production line, when coal is worn into product and is entered to hot air duct, because hot air duct is 90 ° of bend pipes, so wearing into product, coal easily at place, 90 ° of angles, gathers materials in the process moving up, the temperature of wearing into product due to coal is higher, easily expansion joint is burnt out after gathering materials too much, be change or maintenance all cumbersome.

Model utility content

The purpose of this utility model is exactly at present in manufacture of cement, when coal is worn into product and is entered to hot air duct, because hot air duct is 90 ° of bend pipes, so wearing into product, coal easily at place, 90 ° of angles, gathers materials in the process moving up, the temperature of wearing into product due to coal is higher, after gathering materials too much, easily expansion joint is burnt out, be change or keep in repair all cumbersome deficiency, and be provided for the expansion joint of warm-air pipe on cement production line.

The utility model comprises expansion joint, and it also has A plate and B plate, and A plate and B plate are arranged on respectively on the inwall of expansion joint, and the angular range of A plate and B plate is 90 ° >=α >=45 °.

The utility model has the advantages that: on existing expansion joint, improve, avoided coal to wear into product and gathered materials at expansion joint place, simultaneously also without expansion joint is keeped in repair and changed.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Embodiment

As shown in Figure 1, the utility model comprises expansion joint 1, and it also has A plate 2 and B plate 3, and A plate 2 and B plate 3 are arranged on respectively on the inwall of expansion joint 1, and A plate 2 and B plate 3 exist angle α.The scope of angle α is 90 ° >=α >=45 °.

Working principle: in the time of in coal is worn into the expansion joint that product enter to place, 90 ° of angles, owing to there is angle α in A plate 2 and B plate 3, thus coal wear into product under the effect on slope voluntarily to downstream to hot air duct, can not produce any negative effect to expansion joint.

Claims (1)

1. for the expansion joint of warm-air pipe on cement production line, it comprises expansion joint (1), it is characterized in that it also has A plate (2) and B plate (3), A plate (2) and B plate (3) are arranged on respectively on the inwall of expansion joint (1), and the angle (α) of A plate (2) and B plate (3) is 90 ° >=α >=45 °.