Mining and separating method for riverway dredged materials

A technology of river dredging and separation method, which is applied in the field of river dredging and mining and separation of river dredging materials, which can solve problems such as low efficiency, secondary pollution, soft land, etc., and achieve simple screening steps, increase load-bearing capacity, and sand production Effects in simple steps

Inactive Publication Date: 2020-02-14
海南绿峰资源开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows us to create sands that have good quality but no longer require water or electricity during their preparation. Natural materials like quartz rocks were discovered through this technique. These naturally occurring stones provide durability while still being able to absorb heavy loads quickly. They make it easier to remove impure substances found along riversides, providing valuable resource value.

Problems solved by technology

This patents describes methods that have proven effective ways to reclaim valuable lands on streams like China's mainland waters through artificial drilling techniques. These technical problem addressed by these inventors includes finding new sources of usable coastal sediment containing harmful elements including lead, chromium, copper, nickel, iron, manganese, polytetrafluoroethylene, polyvinylenegligum resin, rubber, lumber scraps, and similar products generated during civil works activities. Current disposals involve dumpings, incineration, and burying them underground, leading to increased costs associated with land usage. Therefore there is a demand for efficient recovery processes involving reuse of demolished building materials without causing negative impacts upon surrounding ecologically sensitive environments.

Method used

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  • Mining and separating method for riverway dredged materials
  • Mining and separating method for riverway dredged materials
  • Mining and separating method for riverway dredged materials

Examples

Experimental program
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Embodiment 1

[0038] A method for mining and separating river dredged materials, using river dredged materials as raw materials, comprising the following steps:

[0039] S01 Use a sand pump to extract raw materials from the river and transport them to the floating body through pipelines;

[0040] S02 separates the natural sand from the gravel through the vibrating screen, and transports the natural sand to the sand tank;

[0041] After S03 stones are sieved, they are divided into large stones with a particle size greater than 4cm and small stones with a particle size less than or equal to 4cm;

[0042] S04 Crushing large stones and small stones respectively, transporting them to the sand making machine to prepare sand, and then transporting the sand to the sand tank;

[0043] S05 transports the sand in the sand pool to the sand field with a sand pump.

[0044] The floating body described in step S01 is as figure 1 and figure 2As shown, it includes the connecting plate 2 and the spiral ...

Embodiment 2

[0046] A method for mining and separating river dredged materials, using river dredged materials as raw materials, comprising the following steps:

[0047] S01 Use a sand pump to extract raw materials from the river and transport them to the floating body through pipelines;

[0048] S02 separates the natural sand from the gravel through the vibrating screen, and transports the natural sand to the sand tank;

[0049] After S03 stones are sieved, they are divided into large stones with a particle size greater than 4cm and small stones with a particle size less than or equal to 4cm;

[0050] S04 Crushing large stones and small stones respectively, transporting them to the sand making machine to prepare sand, and then transporting the sand to the sand tank;

[0051] S05 transports the sand in the sand pool to the sand field with a sand pump.

[0052] The floating body described in step S01 is as figure 1 and figure 2 As shown, it includes the connecting plate 2 and the spiral...

Embodiment 3

[0055] Embodiment 3 is basically the same as Embodiment 2, the difference is that step S01 transports the raw materials to the floating body and then stirs the raw materials (you can also add water appropriately according to the amount of water in the raw materials), discards the floating matter in the stirring process, and then puts The water is drained, and then magnetic separation is used to remove metal substances. The metals can be collected for reuse, and then continue to step S02; the stones obtained by sieving in S02 are stirred and soaked with an aqueous solution of bleaching powder for 0.5 to 1 hour. The mass concentration in the solution is 28-35%, the volume ratio of the aqueous solution of bleaching powder to the raw material is 1-2:1, then the solution is removed by filtration, and then sieved, that is, step S03; the rest of the steps are the same as in Example 2. Among them, the floating objects are mainly some plastics, wood chips and other substances. After the...

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Abstract

The invention discloses a mining and separating method for riverway dredged materials and belongs to the technical field of environmental protection engineering and building material collection. The mining and separating method takes the riverway dredged materials as raw materials and comprises the following steps that S01, the raw materials are pumped out of a riverway by utilizing a sand pump and are conveyed to a floating body through a pipeline; S02, natural sand and stones are separated through vibrating screens, and the natural sand is conveyed to a sand pit; S03, the stones are separated into large-particle stones with the partical size being larger than 4 cm and small-particle stones with the partical size being less than and equal to 4 cm after being screened; S04, the large-particle stones and the small-particle stones are conveyed to a sand making machine to be prepared into sand after being crushed correspondingly, and then the sand is conveyed to the sand pit; and S05, thesand inside the sand pit is conveyed to a sand field by utilizing the sand pump. By means of the mining and separating method for the riverway dredged materials, the natural sand and the machine-madesand are obtained by mining and separating the riverway dredged materials, the natural sand is fine and smooth in hand feeling and large in bearing capacity and is a good building material, the machine-made sand of different partical sizes can be prepared, and the natural sand and the machine-made sand both can be used in highway, railway, hydropower, metallurgy and other industries.

Description

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Claims

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Application Information

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Owner 海南绿峰资源开发有限公司
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