Continuous preparation system and preparation technology of whole grain grade tailing cemented filling slurry

A cemented filling and preparation system technology, which is applied to fillings, safety devices, mining equipment, etc., can solve problems such as uneven mixing of filling slurry, loss of water supply system, and affecting the working environment, and achieve tailings settlement and concentration effects Better, shorter infrastructure construction cycle, simple system effect

CN105834012AActive Publication Date: 2016-08-10MCC NORTH (DALIAN) ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-08-10

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Abstract

The invention relates to a continuous preparation system and a preparation technology of whole grain grade tailing cemented filling slurry. The continuous preparation system mainly comprises a tailing slurry collecting buffer feeding device, a deep-cone thickener, a flocculating agent preparing and adding device, an underflow slag slurry pump, a cementing material storage bin, a cementing material measuring and conveying device, an air compression system, a water supply system, a filling accident pool, a stirring system and a filling slurry output pipeline. The preparation technology comprises the steps of conveying tailing slurry to the tailing slurry collecting buffer feeding device through the slag slurry pump, after reducing the pressure to 0.03 MPa through the collecting buffer feeding device and carrying out energy dissipation, feeding the tailing slurry into the deep-cone thickener, and adding a flocculating agent into the deep-cone thickener according to the principle that for per ton of tailing slurry, every 5 to 20 g of the flocculating agent is added, so as to obtain high-concentration tailing slurry with the concentration of 65 to 75%; and conveying the high-concentration tailing slurry and a cementing material into the stirring system according to the fact that the mass ratio of the high-concentration tailing slurry to the cementing material is 1 to (5 to 40), adding water, stirring, and preparing the mixture into the high-concentration whole grain grade tailing cemented filling slurry with the concentration of 65 to 75%. According to the continuous preparation system and the preparation technology, the system is simple, the automation degree during the preparation process is high, the operation is convenient, and the filling slurry can be continuously prepared.
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Description

technical field

[0001] The invention belongs to the field of mine mining and filling systems, in particular to a continuous preparation system and a preparation process for full-grain tailings cemented filling slurry suitable for large-scale mining of mines. Background technique

[0002] At present, the use of full-size tailings as filling aggregate has become a development trend, and the preparation of full-size tailings cemented filling slurry is particularly critical. For the filling system of large-scale filling mining mines, the current technical experience at home and abroad is still shallow, and the design and construction of small-scale filling mining mines are mostly referred to, and the following problems exist:

[0003] Traditional mine filling slurry preparation systems mostly use vertical sand bins as facilities for storing and thickening tailing mortar. After the tailing mortar produced by the concentrator is thickened by the thickener, it is pumped to the ver...

Examples

Embodiment Construction

[0047] Labeled in the figure:

[0048] 1. Tailing mortar collection buffer feeding device, 2. Deep cone thickener, 3. Flocculant preparation and dosing device, 4. Underflow slurry pump, 5. Cement storage bin, 6. Cement metering and delivery device, 7. Compressed air system, 8. Water supply system, 9. Filling accident pool, 10. Stirring system, 11. Filling slurry output pipeline, 12. Tailing mortar conveying pipeline of mineral processing plant, 13. Tailing mortar concentration and flow monitoring pipeline, 14 . Tailing mortar overflow pipeline, 15. Accident ditch, 16. Fresh water pipeline in the plant area, 17. Flocculant conveying pipeline, 18. Accident emptying pipeline, 19. Tailing mortar underflow circulation pipeline, 20. Tailing mortar underflow conveying pipeline, 21 . Cement material feeding pipe, 22. Compressed air pipeline, 23. Pneumatic conveying pipeline, 24. Flow aid and anti-blocking device, 25. Deep cone thickener overflow water pipeline, 26. Water supply pipeli...