Device and method for closed reclamation of large pit type tailing pond

Abstract

The invention discloses a device and method for closed reclamation of a large pit type tailing pond, the device comprises a tailing pit and a reclamation device arranged on the periphery of the tailing pit, the reclamation device comprises: a stirring part, the stirring part is used for stirring loam, tail water and grass seeds and is arranged on one side of the tailing pit; the first soil covering part comprises a mud discharging pipe, the mud discharging pipe is arranged to be of an annular structure, the mud discharging pipe is arranged on the periphery of a pit opening in the top of the tailing pit, a mud discharging mechanism is arranged on the mud discharging pipe, the mud discharging mechanism is communicated with the mud discharging pipe, and the mud discharging pipe is communicated with the stirring part; the second soil covering part comprises a platform mechanism, one end of the platform mechanism is fixedly connected with the edge of the tailing pit, the other end of the platform mechanism is located in the center of the tailing pit, a discharging mechanism is arranged at the top of the platform mechanism, and the discharging mechanism is communicated with the mud discharging pipe.

Description

technical field [0001] The invention relates to the technical field of tailings pond closed storage and reclamation engineering, in particular to a device and method for closed storage and reclamation of large pit-type tailings storage ponds. Background technique [0002] The tailings pond is one of the three major control projects of the mine and an important production facility of the mining enterprise. necessary facilities for normal production. The tailings ponds that have been operated to the final designed elevation or no longer carry out tailing operations should be closed. The beach surface renovation is to prevent the tailings pond surface from weathering after the closure of the tailings pond, which will generate dust and cause air pollution. The main project is to cover the tailings pond with soil and plant vegetation. [0003] The types of tailings ponds mainly include valley-type tailings ponds, mountain-side tailings ponds, flat-land type tailings ponds and i...

AI Technical Summary

Problems solved by technology

[0005] (1) Long closure cycle: Vehicle transportation requires a certain bearing capacity on the beach surface, and the beach surface of the pit tailings pond is submerged by water all the year round. If the beach surface bearing capacity is to meet the vehicle walking requirements, drainage and consolidation must be carried out. All the water in the reservoir is pumped out, and the beach surface is exposed to the natural wind after pumping out. This process takes a long time

[0006] (2) High construction cost: Large tailings pits occupy a huge area, and using traditional vehicle covering soil methods to complete all beach surface covering work in the pit requires a lot of manpower, vehicles, scrapers and other equipment, and the cost is high

[0007] (3) Serious environmental pollution: The traditional method of closing tailings ponds uses vehicles to transport loam. Due to the large amount of engineering, the transportation vehicles produce a large amount of tail gas after closing the warehouse, causing serious pollution to the atmosphere.

[0008] (4) The safety of the disposal method is poor: the drainage and consolidation period of the tailings in the open-pit pit is long, and the consolidation effect cannot be fully guaranteed. Frequent vehicle transportation and rolling back and forth on the beach surface in the pit may easily cause local beach surface liquefaction and vehicle damage. , equipment overturning and other issues

[0009] (5) Difficulties in construction organization and management: the pit-type tailings pond adopts vehicles to cover soil and close the reservoir for reclamation, which requires more personnel and engineering vehicles, and it is difficult to organize and manage on-site construction

Images