Elastic reset device

Abstract

The invention discloses an elastic reset device. The device is arranged in the middle of a fire grate segment and comprises a reset block, a spring, a sleeve and a guide plate, the reset block is divided into a left reset block and a right reset block, the upper ends of the left reset block and the right reset block are partially overlapped, a break angle is arranged at the overlapped position, the break angle alpha is not smaller than 45 degrees, and the break angle is filled with a ceramic fiber blanket. In order to avoid failure caused by the fact that ash enters the elastic reset device during operation of a fire grate, the upper ends of the left reset block and the right reset block are overlapped, the break angle is arranged at the overlapped position, the break angle alpha is not smaller than 45 degrees, and the break angle is filled with the ceramic fiber blanket; and the guide plate is additionally arranged in the middle, so that even if a small amount of ash enters the elastic reset device, the ash does not touch the spring to influence the work. A longitudinal kidney-shaped hole is formed at the lower end of the reset block, and a transverse kidney-shaped hole is formed in a support so that free expansion in respective directions can be facilitated. In order to facilitate installation and maintenance, the elastic reset device is provided with a bolt nut and a spring washer which are connected with the support.

Description

technical field [0001] The invention relates to the field of boilers, in particular to an elastic reset device. Background technique [0002] As the width of the grate gradually widens, the thermal expansion of the grate gradually increases. In order to avoid failure of the grate due to thermal expansion and ensure a constant ventilation cross section of the grate, an elastic reset function is added to the grate piece in the prior art. However, during operation, the ash on the grate is more likely to enter the device with elastic reset function, thereby affecting its elastic reset function, and because the temperature in this area is high, it is easy to cause the elastic parts of the elastic reset device to fail. Contents of the invention [0003] The object of the present invention is to provide a device with elastic reset function, which can ensure the constant ventilation section of the fire grate, and avoid the failure of the elastic reset function due to the ash on th...

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Problems solved by technology

[0002] As the width of the grate gradually widens, the thermal expansion of the grate gradually increases. In order to avoid failure of the grate due to thermal expansion and ensure a constant ventilation cross section of the grate, an elastic reset function is added to the grate piece in the prior art. However, during operation, the ash on the grate is easy to enter the device with elastic reset function, thereby affecting its elastic reset function, and because the temperature in this area is high, it is easy to cause the elastic parts of the elastic reset device to fail

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