Application of hydraulic screening bucket in backfilling of sieving soil pipeline fine soil
发布时间：20-06-30 访问量：58 来源：
With the rapid economic development, the construction of underground pipe corridors has been fully rolled out. Whether many petrochemical pipelines can be operated safely and normally has put strict requirements on pipeline construction. Due to the large reduction of cultivated land and severe damage to environmental vegetation, the original backfilling method used for pipeline construction in special pipeline sections has been unable to meet the various construction requirements at this stage. Construction that fails to meet the standards will even leave many hidden dangers for the later management of pipeline construction .
Therefore, strict backfill standards for fine soils came into being. First of all, it is required to be backfilled with fine soil within 300mm above the top of the pipe. The maximum particle size of fine soil cannot exceed 10mm. Then, the backfilled earthwork should not contain frozen soil, garbage, wood and soft materials. The maximum particle size of gravel in earthwork should not exceed 250mm, and it cannot destroy cultivated fields and vegetation.
The invention of the multifunctional solved many problems in pipeline backfilling. The multifunctional screening and crushing bucket is assembled on the excavator on site, and the power of the excavator is used to complete the soil extraction, mixing, crushing and screening in one step at the construction site. This approach greatly reduces the process, saves time, improves the uniformity and fineness of crushing and screening, and reduces investment and operating costs. Because the crushing and screening are concentrated in one place, it is close to the semi-closed crushing and screening operation, which greatly reduces the environmental pollution along the construction line. Make the pipeline construction results easily meet the strict requirements of pipeline construction.
have been field tested by pipeline specialization companies in some pipeline projects and adopted in some engineering constructions. The working efficiency of the hydraulic screening bucket meets the requirements of the pipeline construction for the thickness of the fine soil at the top and bottom of the pipe and the particle size of the backfill soil, ensuring the quality of the project while reducing the damage to the cultivated land, environment and vegetation during the construction, and saving the single fund 50% of the investment has been fully affirmed by users.
It is precisely because of the lightness and dexterity of the hydraulic screening bucket, and it has the functions of screening, crushing and shoveling. The working efficiency of a 20T excavator is generally 60-100m3 / h, and its comprehensive working efficiency is compared with other pipelines on the market The construction of fine soil backfill equipment is much higher.
The is basically not limited by the construction site, and has high working efficiency, easy installation, easy operation, small size, convenient transportation, low use cost, and plays an important role in pipeline construction.