Sand sprayer for locomotives and application method thereof

Abstract

A sand sprayer for locomotives is installed below a sandbox and comprises a sand spray body provided with a cavity and a high-pressure air flue which communicates with the cavity. A vertical separator plate divides the cavity from the bottom into a sand inlet cavity and a sand outlet cavity, wherein the upper parts of both the sand inlet cavity and the sand outlet cavity communicate with each other. The sand inlet cavity is divided by a suspended cavity wall of the sand inlet cavity from the upper part into a sand inlet chamber and a sand lift chamber, wherein bottoms of both the sand inlet chamber and the sand lift chamber communicate with each other. The sand inlet chamber communicates with a sandbox outlet. The top of the sand lift chamber is provided with a sand lift tuyere which communicates with the high-pressure air flue. The sand lift tuyere blows sand, which flows into the sand inlet chamber from the sandbox and enters the sand lift chamber through the bottom of the sand inlet chamber, into the sand outlet cavity. The top of the sand outlet cavity is provided with a sand outlet tuyere which communicates with the high-pressure air flue and is used for blowing sand out of a sand outlet at the bottom of the sand outlet cavity. The invention also provides an application method of the sand sprayer. The sand sprayer provided by the invention is applicable to be used under the condition of nonuniform particle size of sand grains and is not easy to obstruct. By the use of the sand sprayer, sand flow is smooth, idle running of locomotives can be inhibited timely, and normal operation of locomotives is guaranteed.

Description

Technical field [0001] The invention relates to a component for an electric locomotive, in particular to a sand spreader and a method of use thereof. Background technique [0002] During the operation of electric locomotives, due to rain, snow, freezing, and oil pollution, the adhesion coefficient between the wheels and the track becomes small, which will cause problems such as wheel idling and sliding. The solution is to install a sand spreader on the electric locomotive to spread sand , That is, continue to sprinkle dry sand between the wheel tread and the wheel rail. In the process of sand removal, it is necessary to control the sand from the sand box to continuously flow into the sand spreader, replenish the sand in the sand spreader chamber, and blow the sand out of the chamber evenly and spread it between the wheel tread and the wheel rail. In the state of high-speed operation of electric locomotives, the movement of sand particles is affected by various factors. Therefore...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that existing sand spreaders have high requirements for sand standards, the purpose of the present invention is to provide a sand spreader for locomotives

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