Grouting trolley

Abstract

The invention discloses a grouting trolley, and belongs to the field of bridge construction equipment. The grouting trolley comprises a stirring tank, a slurry storage tank, a slurry delivery pipeline and a slurry discharge pipeline. The stirring tank and the slurry storage tank are arranged on a base, the slurry delivery pipeline and the slurry discharge pipeline are connected with two ends of a prestressed pipeline and are provided with flow meters and pressure gauges, a feeding sieve is arranged above the stirring tank, a liquid crystal display which is connected with a control center is arranged on the upper surface of the feeding sieve, and a gravity sensor which is connected with the control center is arranged between the stirring tank and the base; the lower end of the stirring tank is connected with a slurry guide pipe by a centrifugal pump, and a movable elbow which can delivery cement slurry to the stirring tank or the storage tank is arranged at the upper end of the slurry guide pipe; the flow meters are vertically mounted on the slurry delivery pipeline and the slurry discharge pipeline, and the cement slurry in the flow meters can be delivered from bottom to top; the pressure gauges are transversely arranged on the slurry delivery pipeline and the slurry discharge pipeline. The grouting trolley has the advantages that water slurry is high in quality, the grouting compactness can be improved, and the grouting quality of prestressed bridges can be guaranteed.

Description

Technical field [0001] The invention relates to a grouting equipment, in particular to a grouting trolley, belonging to the field of bridge construction equipment. Background technique [0002] Prestressed bridges are very common in bridge construction. The grouting quality of prestressed pipes in prestressed bridges is one of the most important factors that determine the quality of the bridge. The grouting quality that meets the design requirements can make the prestressed steel strands fully function. When there are grouting quality defects, the anchor head stress concentration and prestress loss over time will occur, and the design stress state of the beam will be changed , Reduce the bearing capacity of the bridge, which in turn affects the service life of the bridge, and brings potential safety hazards to use. According to statistics, due to the lack of compaction of the grouting, the steel strands in the prestressed pipeline are rusted and the prestress is lost early, whic...

AI Technical Summary

Problems solved by technology

However, the taller mixing tank requires the loading personnel to carry heavy grouting materials to climb up to complete the loading operation, which brings a lot of inconvenience to manual loading

[0005] In the prior art, since the medium in the slurry pipeline is cement slurry, the ordinary pressure gauge installed directly on the slurry pipeline cannot measure the pressure value in the pipeline normally, which will cause damage to the internal structure of the pressure gauge, and also cause damage to the pressure gauge. It is inconvenient to clean; in general, the slurry delivery pipeline and the slurry delivery pipeline where the flowmeter is installed are placed horizontally, and the flowmeter is installed horizontally on the pipeline. There is no problem of inaccurate measurement of flow measurement when the slurry outlet pipeline is full of cement slurry, but at the beginning of the grouting process, the cement slurry in the pipeline will fill the pipeline from scratch to full, and when the pipeline is not filled with cement slurry The flow meter is not particularly accurate in measuring the flow of cement slurry, and the cement slurry passes through the flow meter horizontally, and the gap between the cement slurry is relatively large and loose, which will also cause errors in flow measurement; at the same time, after the grouting trolley is used It is necessary to carry out the flushing procedure in time, especially in the connection between the flowmeter and the slurry pipeline and the slurry pipeline, it is easier to hide dirt and dirt. At the same time, the cleaning of these joints is often not as clean as the smooth pipeline. The cement slurry is solidified and more and more, the flow measurement of the cement slurry will become more and more inaccurate

Therefore, the installation method of pressure gauge and flow meter in the actual work process will affect the quality of the prestressed bridge

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