Machine-made sand production station and sand making method

Abstract

The invention discloses a machine-made sand production station and a sand making method. The machine-made sand production station comprises a steel structure framework, a vibrator feeder, a powder removal machine, a sand-making machine, a shaper, a screening machine and dust removal equipment, and adopts a novel layout manner as follows: the sand-making machine is arranged on the top of the steelstructure framework, the screening machine with high vibration is arranged at the bottom, and the screening machine is separated from the structure framework, so that vibration of the steel structureis reduced, the weight of the steel structure of the station is reduced on premise of ensuring the safety, and investment of the production station is reduced. Two sand-making machines are used for simultaneously making sand, and a novel manner of matching the shaper and two screening machines is adopted, so that the sand making efficiency is improved, the grains of finished sand are full and round and more regular. The powder removal machines are arranged at a feeding hole and a discharging hole of the shaper, and a two-stage powder removal process is adopted, so that stone powder content ofthe finished sand can be effectively controlled, and the quality of the finished sand is improved.

Description

technical field [0001] The invention relates to a machine-made sand production building and a sand-making method, belonging to the technical field of sand-making equipment. Background technique [0002] With the continuous development of my country's economy, various large-scale construction projects are gradually increasing, and the performance requirements of concrete are getting higher and higher. Sand and gravel, as the raw material with the highest proportion in concrete, directly affect the workability of high-performance concrete. mechanics and durability. In the existing major projects, almost all important structures require high-performance concrete, and the sand of high-performance concrete must use natural sand to ensure its performance. As a non-renewable resource, natural sand is already facing depletion. The mining of natural sand has caused serious damage to the environment and brought a series of environmental protection problems. It has become an important ...

AI Technical Summary

Problems solved by technology

The traditional equipment adopts the form of a steel structure building station, which is compact in structure, occupies a small area, and saves space, but has the following defects: (1) The vibrating screen in the building station is generally installed on the middle and high floors of the building station, and the vibration of the vibrating screen is relatively large when it is working Large, in order to ensure the safety of the building and station, it is necessary to increase the strength of the steel structure of the building and station, and increase the investment in equipment; (2) The requirements for raw materials are strict, the processing capacity is weak, the proportion of stone powder contained in the machine-made sand is not easy to control, and the ultrafine powder It is not easy to remove, resulting in unreasonable gradation of machine-made sand. When the raw material contains high powder or mud content, the cost of dust removal is high; (3) The sand making process is often simply crushed. Although the particle size can be guaranteed, the shape of the particle shape cannot be guaranteed. Insufficient rules, affecting the quality of finished sand; (4) The equipment configuration is single, the output of finished sand is low, and energy waste is large

Therefore, the sand and gravel aggregates produced by traditional sand making equipment and processes can no longer meet the needs of high-performance concrete. New processes and equipment must be developed to produce high-quality fine sand and gravel aggregates while ensuring product stability.

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