Upper-supporting wheel axle of chain grate
A supporting wheel shaft and chain grate technology, which is applied in the field of chain grates, can solve the problems of unsatisfactory cooling effect and large cooling air volume, and achieve the effect of improving the cooling effect
Active Publication Date: 2012-08-22
ZHONGYE-CHANGTIAN INT ENG CO LTD
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Problems solved by technology
Since the upper supporting wheel shaft is relatively long, generally about a few meters, the required cooling air volume is relatively large, and the cooling effect is not ideal
Method used
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[0026] The chain grate machine is to place the iron-containing material balls on the slow-moving grate plate, and use the waste heat of the annular cooler and the hot air flow discharged from the rotary kiln to dry the raw balls (which can be divided into a drying section and a drying section), pre-processing Heat (can be divided into temperature adjustment preheating section and preheating section), and then directly sent to the rotary kiln for roasting equipment.
[0027] The chain grate is moved by the main sprocket, and the chain grate device in the chain grate is supported by the support roller. The chain grate device in the chain grate can drive the upper support wheel to rotate during the movement. The upper supporting roller is supported by the upper supporting roller shaft of the grate machine (abbreviated as the upper supporting roller shaft).
[0028] According to the specifications of the chain grate, a plurality of supporting wheel shafts on the chain grate are ar...
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The invention disclose an upper-supporting wheel axle of a chain grate, particularly being located on a thermoregulation preheating section and a preheating section; the upper-supporting wheel axle of the chain grate comprises a supporting wheel main axle for mounting a supporting wheel and two auxiliary axles fixedly installed on both ends of the supporting wheel main axle; the upper-supporting wheel main axle is supported by bearings installed on both ends of the two auxiliary axles; the upper-supporting wheel main axle and the two auxiliary axles are all in a hollow structure; the upper-supporting wheel main axle is internally installed with an inner tube which is provided with two closed ends, and a predetermined gap is arranged between the inner wall of the upper-supporting wheel main axle and the outer wall of the inner tube; and the two auxiliary axles are respectively provided with an air inlet and an air outlet. The upper-supporting wheel axle provided by the invention is used for improving the cooling effect and increasing the service life of the upper-supporting wheel axle.
Description
technical field [0001] The invention relates to a chain grate machine, in particular to an upper support wheel shaft of the chain grate machine. 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] The chain grate machine is to place the iron-containing material balls on the slow-moving grate plate, and use the waste heat of the annular cooler and the hot air flow discharged from the rotary kiln to dry the raw balls (which can be divided into a drying section and a drying section), pre-processing Heat (can be di...
Claims
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IPC IPC(8): F27B21/08
Inventor 左岳宁江波
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD