A railway auxiliary vacuum automatic grouting machine

Abstract

The invention discloses an auxiliary vacuumizing and automatic mud jacking integrated machine for railways. The auxiliary vacuumizing and automatic mud jacking integrated machine for railways comprises a rack, an automatic mud jacking system and a vacuumizing system, wherein the automatic mud jacking system and the vacuumizing system are arranged on the rack. The automatic mud jacking system comprises a feeding system, a high-speed and low-speed stirring system, a static weighing system, a mud jacking and pressure stabilizing system, an environmental protection dust removal system, an automatic control system, a data storage and transmission system, an equipment self-inspection system, a cleaning system and an alarm system. By means of the novel vacuumizing and automatic mud jacking integrated machine, the purpose of conducting vacuumizing and mud jacking work at the same end of a pipeline is achieved, one-key operation of the work is achieved by adopting the uniform central control system, operation control is simplified, the automatic operation and control degree of the vacuumizing and mud jacking work are improved, accurate feeding and weighing, stable and continuous mud jacking and controllable flow are achieved, plumpness of mud in the pipeline can be guaranteed, and the whole construction process is environmentally friendly and free of pollution.

Description

technical field [0001] The invention belongs to the field of railway machinery, and in particular relates to a railway auxiliary vacuum automatic grouting integrated machine. Background technique [0002] Railway grouting machines are mainly used for grouting prestressed pipelines in bridges. Pipeline grouting is one of the most important construction links in post-tensioned beams. At present, vacuum-assisted grouting technology is basically used. The currently commonly used grouting trolley lacks an automatic feeding weighing system or has defects such as inaccurate feeding and weighing, arbitrary slurry configuration, and long powder transmission stroke; the integration of equipment at both ends of the pipeline is not high, and manual intervention affects The degree of automation of the grouting operation is limited, resulting in complex grouting operations, unstable grouting process, easy residual air at the grouting end, resulting in unsatisfactory construction, and seri...

AI Technical Summary

Problems solved by technology

The currently commonly used grouting trolley lacks an automatic feeding weighing system or has defects such as inaccurate feeding and weighing, arbitrary slurry configuration, and long powder transmission stroke; the integration of equipment at both ends of the pipeline is not high, and manual intervention affects The degree of automation of the grouting operation is limited, resulting in complex grouting operations, unstable grouting process, easy residual air at the grouting end, resulting in unsatisfactory construction, and serious construction dust pollution, etc., specifically manifested in:

[0003] (1) The traditional method in railway grouting is to rely on screw auger or manual feeding method, which has serious problems such as dust pollution

[0004] (2) Due to construction needs, the current vacuum equipment and grouting pumps are placed at both ends of the beam body respectively, and are controlled manually and by the system respectively. The degree of automation is low, and the process conversion and operation are difficult to control, which affects the construction quality

[0005] (3) In the prestressed pipeline grouting operation, the slurry needs to be weighed and prepared according to the formula requirements. It is required that the weighing error of water and powder should be controlled within ±1%. Feeding and weighing in the stirring state of the high-speed mixing tank, especially for the slurry controlled by multiple metering, there is a large error, which directly affects the quality of the slurry

[0006] (4) Grouting pump is an important equipment for grouting operations of prestressed pipelines. Currently, the commonly used continuous grouting pump—screw pump is easy to burn out the stator when it is running without slurry. Even if it is carefully maintained, 80-100 pieces of boxes are used. The rotor and stator must also be replaced when the beam is grouted, and the life cycle of the whole process is short. In addition, the currently used screw pump cannot record the amount of grouting slurry

The process does not realize the automatic control of the whole process, and the operation is relatively complicated. If the control is not proper, there will be accidents where the slurry is sucked into the vacuum pump and damaged; at the same time, there is no vent hole at the press end, which may easily cause voids and insufficiency near the slurry inlet. ;Pipeline grouting should be carried out as soon as possible after tensioning. The grouting should be carried out slowly, evenly and continuously. In order to ensure the quality of grouting, it is necessary to vacuumize the grouting. The slurry is separated separately. After the vacuuming is completed, the grouting pipeline needs to be reconnected. The process is cumbersome and the operation is complicated.

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