Intelligent multi-cycle pulping and grouting system

Abstract

Disclosed is an intelligent multi-circulation mortar production and grouting system. A mortar water-binder ratio automatic judgment device is arranged on a conveying pipeline which is communicated with a low-speed stir mortar storage barrel and arranged in a prestressed duct mortar outlet, and is used for judging whether the mortar water-binder ratio meets the standard or not. An electric three-way valve is arranged, and three ports of the electric three-way valve are connected with the mortar water-binder ratio automatic judgment device, a waste mortar barrel and the low-speed stir mortar storage barrel respectively. A circulating pump is arranged, so that a circulating loop of the circulating pump and a high-speed stir mortar production barrel is formed. A circulating loop of a mortar grouting machine and the low-speed stir mortar storage barrel is formed. The intelligent multi-circulation mortar production and grouting system has the advantages that automatic weighing, automatic feeding, automatic mortar production, automatic mortar grouting, automatic mortar grouting data recording and automatic generation of pressure-time curves can be achieved, the mortar production efficiency is higher, and the mortar production effect is better; the damage caused by idling of the mortar grouting machine can be avoided, and the phenomena of pipeline breakage and mortar leakage caused by the over-high pressure can be effectively avoided; whether the mortar water-binder ratio meets the standard or not can be automatically judged, and mortar which does not meet the standard is automatically removed; and mortar accumulation in pipelines is avoided, and cleaning is convenient.

Description

technical field [0001] The invention relates to the technical field of prestressed engineering construction, in particular to an intelligent multi-cycle pulping and grouting system. Background technique [0002] Grouting in the tunnel is one of the most important processes in the post-tensioned prestressed concrete structure. Whether the grouting is full and dense has a decisive impact on the corrosion of prestressed tendons, the loss of prestress, and the stiffness of prestressed components, and directly affects the quality of prestressed concrete. Structural security and durability. The traditional grouting method for prestressed pipelines is controlled by manual operation, which has many disadvantages: (1) manual weighing of ingredients, inaccurate control of water-binder ratio, resulting in serious bleeding; (2) uncontrollable pressure resulting in insufficient grouting; (3) Manually record data, human factors are uncontrollable and easy to falsify; (4) Manual workload ...

AI Technical Summary

Problems solved by technology

The inventor owns Chinese patent 201320831177.2, which discloses an intelligent pulping and grouting system, which can realize the functions of automatic automatic weighing, automatic feeding, automatic pulping, automatic grouting, automatic recording of grouting data and automatic generation of pressure time curves ; But it has the following disadvantages: 1. High-speed stirring is driven by a single motor, which requires a large motor power and large vibration during work, and sometimes the stirred slurry is not fine enough; 2. Due to the high pressure at the end of grouting, it is easy to appear Slurry leakage; 3. The grouting machine is easy to be damaged due to idling; 4. It is impossible to determine whether the slurry-water-binder ratio of the slurry outlet meets the requirements

[0004] Chinese patent 201210194412.4 discloses a prestressed grouting trolley and a circulating grouting method. The water-binder ratio tester can be used to measure the water-binder ratio, but it has the following defects: due to the water in the prestressed pipeline during the circulating grouting, the dilution The slurry is destroyed and its water-binder ratio is destroyed. These unqualified slurry cannot be eliminated, and are returned to the storage tank through a closed circuit, resulting in damage to the water-binder ratio of the entire bucket of slurry.

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