Excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling system and method

A technology of full tailings and crushed stone, which is applied in the direction of filling materials, safety devices, mining equipment, etc., can solve the problems of ineffective use of waste rock, limited utilization rate of waste rock, and limited utilization rate of waste materials, etc., so as to reduce the cost of filling , low cost, and the effect of reducing emissions

Inactive Publication Date: 2018-05-11
YUXI MINING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of mine waste rock filling, natural graded mining waste rock is still used as the filling aggregate and cement slurry as the cementing medium, and the cemented filling can only be realized by using the head drop condition of the goaf and filling material diversion transportation and self-drenching mixing , so the utilization rate of waste rock is limited, and it can only be promoted in a few mines, and the mines that adopt the layered filling method cannot effectively use waste rock for filling.
Waste rocks and tailings are bulk wastes of mines and there is no problem of insufficient sources, and if these waste rocks are not treated, they will constitute pollution to the environment
The existing mine filling system cannot use a large amount of mine waste rock and tailings to prepare filling slurry, which makes the utilization rate of these two wastes limited and causes pollution to the environment

Method used

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  • Excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling system and method
  • Excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0067] The water is sent into the mixing container 8, the hydraulic filling pump 9 and the delivery pipeline 11 sequentially through the water supply device 6, the water is tested for 3 minutes, and the filling pipeline is lubricated; Feed silo 4; send excavated gravel with a particle size of 16 to 20 mm into the second feeding silo 5 through the second belt conveyor 2; send cement into the mixer 7 through the feeding mechanism 3, and stir to obtain a weight concentration of 65% water in the stirring container 8 through the water supply device 6, when the water in the stirring container 8 reaches the material level of 1 / 3 of the stirring container, start the stirring container 8, and then put the cement slurry in the mixer 7, the first feed The ultra-fine full tailings in the silo 4 and the excavated gravel in the second feed bin 5 are successively and continuously sent into the mixing container 8, and the weight ratio of the ultrafine full tailings sent into the mixing contain...

Embodiment 2

[0073]Start the water supply device 6, and the water supply device 6 sends water into the stirring container 8, the hydraulic filling pump 9 and the delivery pipeline 11 in sequence, test the water for 5 minutes, and lubricate the filling pipeline; send the ultrafine tailings through the first belt conveyor 1 into the first feeding bin 4; through the second belt conveyor 2, the excavated gravel with a particle size of 16-20mm is sent into the second feeding bin 5; through the feeding mechanism 3, the cement is sent into the mixer 7, and stirred to obtain the weight Concentration is the cement slurry of 7.2%; Inject water in the mixing container 8 through the water supply device 6, after the water in the stirring container 8 reaches the material level of 1 / 3 of the mixing container, then the cement slurry in the mixer 7, the first feed The ultrafine tailings in the silo 4 and the excavated gravel in the second feed bin 5 are successively and continuously sent into the mixing con...

Embodiment 3

[0075] Start the water supply device 6, and the water supply device 6 sends water into the stirring container 8, the hydraulic filling pump 9 and the delivery pipeline 11 in sequence, test the water for 4 minutes, and lubricate the filling pipeline; send the ultrafine tailings through the first belt conveyor 1 into the first feeding bin 4; through the second belt conveyor 2, the excavated gravel with a particle size of 16-20mm is sent into the second feeding bin 5; through the feeding mechanism 3, the cement is sent into the mixer 7, and stirred to obtain the weight Concentration is the cement slurry of 68.5%; Inject water into the stirring container 8 through the water supply device 6, after the water in the stirring container 8 reaches the material level of 1 / 2 of the stirring container, then put the cement slurry in the mixer 7, the first feed The ultra-fine tailings in the silo 4 and the excavated gravel in the second feed bin 5 are continuously sent into the mixing contain...

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Abstract

The invention relates to an excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling system and method and belongs to the technical field of mine engineering. The excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling system comprises structures such as a first belt conveyor, a second belt conveyor, a feeding mechanism, a first supplying bin, a second supplying bin, a water supplying device, a stirring machine and a stirring container. The excavated gravel-ultra fine full tailings pipeline self-flowing transportation filling methodcomprises the steps that water testing is conducted on the filling system, and water is injected into the stirring container; then cement paste, ultra fine full tailings and excavated gravel are sequentially added, slurry is stirred, and the mass concentration of the slurry is adjusted, and the excavated gravel-ultra fine full tailings filling slurry is obtained; and the filling slurry is transported to a filling stope to be filled, and after filling is completed, a transporting pipeline is cleaned through water firstly and then through a combining of wind and water. The excavated gravel-ultrafine full tailings pipeline self-flowing transportation filling method is a mine filling new mode which integrates the high concentration and paste filling technological advantages and is low in cost, and is applied to various mines applying a filling mining method; and the filled slurry in a goaf has the characteristics that the strength is high, segregation is avoided, pipeline transportation is stable.

Description

technical field [0001] The invention belongs to the technical field of mine engineering, and relates to a filling system and a filling method for self-flow conveying of a mine excavating gravel-ultrafine full tailings pipeline. Background technique [0002] Mine excavation waste rock and tailings are two types of solid industrial waste in mining enterprises, and the existing mine filling technology is far from meeting the requirements of mine environmental protection. At present, the graded tailings filling technology with tailings as aggregate, the high-concentration full-tailings filling process and the paste filling process have made major breakthroughs in technology and have been popularized and applied; among them, the high-concentration full-tailings filling technology can Efficient utilization of full tailings at reasonable filling costs. In terms of mine waste rock filling, natural graded mining waste rock is still used as the filling aggregate and cement slurry as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00
CPCE21F15/00E21F15/005
Inventor 乔登攀李广涛黄昭乐魏仁旭柴建雄罗代祺李在利张永强
Owner YUXI MINING
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