Screening device for a plurality of single grade size of rock material and screening method thereof

A screening device and stone material technology, which is applied to chemical instruments and methods, screening, solid separation, etc., can solve the problems of difficult to guarantee particle size quality, multiple screening, heavy workload, etc., and achieve simple structure and high production efficiency Improvement, easy-to-operate effect

Inactive Publication Date: 2010-04-14
沙健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention has made a groundbreaking research and development for the above-mentioned problems, transforms the existing screening equipment into a screening device capable of producing a variety of single-grained stones that meet the requirements, and proposes a sc

Method used

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  • Screening device for a plurality of single grade size of rock material and screening method thereof
  • Screening device for a plurality of single grade size of rock material and screening method thereof
  • Screening device for a plurality of single grade size of rock material and screening method thereof

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Example Embodiment

[0015] The specific embodiments of the present invention can be further understood through the following examples, but do not limit the present invention in any way.

[0016] like figure 1 , figure 2 and image 3 shown.

[0017]When operating, first turn on the power supply, turn on the switch, use the loading machine to load the mixed stone into the mixed stone upper hopper 1, and the loading conveyor 2 transports the mixed stone from the bottom of the mixed stone upper hopper 1 to the loading belt conveyor 3. In the lower part of the screen, the mixed stone material rises with the rolling of the feeding belt conveyor 3 until it is sent to the mixed stone material feeding port 7 provided on the top of the upper screening bin of the upper screening machine 5, and the mixed stone material enters the upper screening bin and falls to the screen. On the first-stage screen 9 with a hole of 26.5mm, the upper vibrating shaft 15 provided in the middle of the upper part of the uppe...

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Abstract

The invention relates to a screening device which comprises an upper screening machine, a lower screening machine, a frame and auxiliary accessories. The screen machines are both provided with closed screening bins, screens with different screen meshes are installed in the bins, can be horizontally installed, also can be obliquely installed, wherein the inclination is changed within 0 degree-45 degrees. Mixed rock materials with different grain sizes are vibrated by a vibration shaft after entering the screening bins, and rock material with large grain size is left on the first-stage screen, and then is transmitted to a specific stocking point by a first-stage discharging pipeline and a discharging belt conveyer. Rock materials are screened in five stages according to the grain size, the qualified rock material of single grade size is ready to apply, and waste material is ready to abandon. The screening device has simple structure, the screening method is feasible and practical, the operations are easy, safe and convenient, not only the production efficiency is high, but also the quality of rock material in each single grade size can be guaranteed to reach standards, and the qualities and the use performances of an asphalt concrete surface layer and a cement crushed stone base layer can be guaranteed. Therefore, the screening device has wide development prospect.

Description

technical field [0001] The present invention relates to a device and a method for screening solid materials, in particular to a method for screening mixed stones of different particle sizes into single-grained stones of various gradations required by high-grade highways. Screening device and screening method. Background technique [0002] The asphalt pavements of high-grade highways and urban arterial roads are all asphalt concrete surface courses, and most of the semi-rigid bases below are cement-bonded gravel. The latest research results prove that in order to make the performance of asphalt concrete and the strength of the cement-bound macadam layer meet the design requirements, and there will be no obvious variability in the construction process, it is necessary to ensure that the cold material gradation used in asphalt concrete is fully in line with the design requirements. The mineral material gradation; the crushed stone coarse and fine aggregates used for cement-bou...

Claims

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Application Information

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IPC IPC(8): B07B1/28
Inventor 沙健
Owner 沙健
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