CN-122013864-A - Upstream type tailing pond rain and sewage diversion system

CN122013864ACN 122013864 ACN122013864 ACN 122013864ACN-122013864-A

Abstract

The invention discloses an upstream type tailing pond rain and sewage diversion system which comprises a pond tail flood drainage rain and sewage diversion system, a piled-up dam surface rain and sewage diversion system and a seepage rain and sewage diversion system, wherein the pond tail flood drainage rain and sewage diversion system is arranged on one side of a flood drainage vertical shaft and is used for precipitating tail sand in flood into a tailing pond before entering the flood drainage vertical shaft, the piled-up dam surface rain and sewage diversion system is arranged on a piled-up dam surface of the tailing pond and is used for isolating rainwater and tail sand and diversion and discharging the rainwater, and the seepage rain and sewage diversion system is used for diversion and drainage of the rainwater contacted with the tail sand into a collecting pond.

Inventors

LI QINGYI
LIU HENGBO
Tong Hongjin
LONG QUAN
YIN CHAOYANG

Assignees

四川省生态环境科学研究院

Dates

Publication Date: 20260512
Application Date: 20260401

Claims (10)

1. An upstream type tailing pond rain and sewage diversion system, which is characterized by comprising: The reservoir tail flood drainage rain and sewage diversion system is arranged at one side of the flood drainage vertical shaft and is used for precipitating tail sand in flood into the tailing reservoir before entering the flood drainage vertical shaft; The accumulation dam face rain and sewage diversion system is arranged on the accumulation dam face of the tailing pond and is used for isolating rainwater and tailing sand and guiding and discharging the rainwater; and the drainage, infiltration, rain and sewage diversion system is used for guiding rainwater contacted with the tailings into the collecting tank.
2. The upstream tailing pond rain and sewage diversion system according to claim 1, wherein the pond tail flood drainage rain and sewage diversion system comprises a base arranged on one side of a flood drainage vertical shaft, a counter slope which is piled up and compacted by tailings is arranged on the base, the counter slope is opposite to the slope direction of the pond tail, a plurality of sedimentation inclined pipes are horizontally arranged above the counter slope and fixedly connected with the base through a support, a gap space for bottom flood to enter is arranged between the counter slope and the sedimentation inclined pipes, one ends of the sedimentation inclined pipes are located at the slope feet of the counter slope, the other ends of the sedimentation inclined pipes are located at flood discharge ports of the flood drainage vertical shaft, and a plurality of holes for discharging the settled tailings in the sedimentation inclined pipes are formed in the sedimentation inclined pipes.
3. The upstream tailings pond rain and sewage diversion system of claim 2 wherein the counter slope length is calculated as: Wherein L is slope length, H is the height difference between a flood discharging port of a flood discharging shaft and nearby tailings, v is the runoff speed of rainwater in a reservoir, and mu is hydrodynamic viscosity; Is the density of the tailings; D is the maximum particle density in the tailings, and v s is the settling speed of the tailings particles; Gravitational acceleration.
4. The upstream tailings pond rain and sewage diversion system of claim 2, wherein the sedimentation chute has an inclination angle of 30 degrees, the sedimentation chute has a radial dimension of 150mm, the aperture of the aperture is 50mm, and the aperture ratio of the aperture is 5% -10%.
5. The upstream tailing pond rain and sewage diversion system according to claim 1, wherein the accumulation dam face rain and sewage diversion system sequentially comprises a blocking layer, a drainage layer and a catwalk ditch which is arranged at the slope toe of the accumulation dam face and used for collecting and draining water from outside to inside.
6. The upstream tailing pond rain and sewage diversion system according to claim 5, wherein the blocking layer sequentially comprises cultivated soil and ecological bags from outside to inside, and the drainage layer is a three-dimensional composite drainage net made of high-density polyethylene, and the thickness of the net core is 5-8mm.
7. The system of claim 5, further comprising a plurality of seepage drainage pipes embedded in the tailing pond, wherein the seepage drainage pipes are provided with a plurality of through holes, the seepage drainage pipes are wrapped with filter layers, the seepage drainage pipes are obliquely arranged, and the lower ports of the seepage drainage pipes are communicated with the catwalk.
8. The upstream tailings pond rain and sewage diversion system of claim 1, wherein the drainage rain and sewage diversion system comprises a percolate collection layer disposed adjacent the horseway trench at the foot of the dam, wherein the percolate collection layer interfaces with the drainage outer tube and collects rain water in contact with the tailings into the collection pond through the drainage outer tube.
9. The upstream tailings pond rain and sewage diversion system of claim 8, wherein the leachate collection layer comprises a reverse filtration layer adjacent to the tailings and a diversion layer adjacent to the catwalk, wherein the reverse filtration layer is filled with silica having a particle size of 2-3mm, geotextiles are coated on both sides and the bottom of the reverse filtration layer, and the diversion layer is filled with waste rocks having a particle size of 20-30 mm.
10. The upstream tailing pond rain and sewage diversion system according to claim 8, wherein the drainage outer connecting pipe comprises a drainage outer connecting cross pipe which is in butt joint with the percolate collecting layer, the drainage outer connecting cross pipe is suspended in the catwalk through a hanging bracket, a plurality of inspection holes for dredging are arranged on the drainage outer connecting cross pipe at intervals, the drainage outer connecting cross pipes in two adjacent catwalk are connected through a drainage outer connecting longitudinal pipe, and the drainage outer connecting cross pipe is connected with the drainage outer connecting longitudinal pipe through a detachable movable bent pipe.

Description

Upstream type tailing pond rain and sewage diversion system Technical Field The invention relates to the technical field of pollution control of tailing ponds, in particular to an upstream type tailing pond rain and sewage diversion system. Background At present, the safety and environmental risk of the tailing pond are controlled again, but pollution control measures are few in the prior construction, particularly, the safety of a dam body is ensured due to flood discharge, and no targeted rain and sewage diversion measures are basically available. During the operation of the upstream tailing pond, the tailing-containing rainwater exceeding the flood regulating water level is discharged through a pond tail flood discharging vertical shaft and a flood discharging chute, the rear part of the tailing of the rainwater leaching accumulation dam is converged into a catwalk channel through runoff and then is directly discharged through a dam abutment flood interception channel, and a seepage discharging pipe arranged on the accumulation dam is led out from the pile body and flows into the catwalk channel and is then directly discharged through the dam abutment flood interception channel. While rainwater containing tailings or pollutants can pollute surrounding soil, surface water, underground water and the like through surface runoff, therefore, an upstream tailing pond rainwater and sewage diversion system needs to be established so as to protect ecological environment. Disclosure of Invention Aiming at the defects in the prior art, the invention provides an upstream type tailing pond rain and sewage diversion system, which solves the problems that peripheral soil, surface water and underground water are easy to pollute when the tailing-containing rain water is discharged and the percolate is collected and discharged. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The upstream type tailing pond rain and sewage diversion system comprises a pond tail flood drainage rain and sewage diversion system, a piled-up dam face rain and sewage diversion system and a seepage drainage rain and sewage diversion system, wherein the pond tail flood drainage rain and sewage diversion system is arranged on one side of a flood drainage vertical shaft and used for precipitating tailings in flood into a tailing pond before entering the flood drainage vertical shaft, the piled-up dam face rain and sewage diversion system is arranged on a piled-up dam face of the tailing pond and used for isolating rainwater and the tailings, conducting diversion and drainage of the rainwater, and the seepage drainage rain and sewage diversion system is used for conducting the rainwater contacted with the tailings into a collecting pond. Further, the reservoir tail flood drainage rain and sewage diversion system comprises a base arranged on one side of a flood drainage vertical shaft, a counter slope which is piled up and compacted by tailings is arranged on the base, the counter slope is opposite to the slope of the reservoir tail, a plurality of sedimentation inclined pipes are horizontally arranged above the counter slope, the sedimentation inclined pipes are fixedly connected with the base through supports, a gap space for bottom flood to enter is arranged between the counter slope and the sedimentation inclined pipes, one ends of the sedimentation inclined pipes are located at the slope feet of the counter slope, the other ends of the sedimentation inclined pipes are located at flood discharge openings of the flood drainage vertical shaft, and a plurality of holes for discharging the sediment tailings in the sedimentation inclined pipes are formed in the sedimentation inclined pipes. Further, the calculation formula of the back slope length is: Wherein L is slope length, H is the height difference between a flood discharging port of a flood discharging shaft and nearby tailings, v is the runoff speed of rainwater in a reservoir, and mu is hydrodynamic viscosity; Is the density of the tailings; D is the maximum particle density in the tailings, and v s is the settling speed of the tailings particles; Gravitational acceleration. Further, the inclination angle of the sedimentation inclined tube is 30 degrees, the radial dimension of the sedimentation inclined tube is 150mm, the aperture of the hole is 50mm, and the aperture ratio of the hole is 5% -10%. Further, the rainwater and sewage diversion system of the face of the accumulation dam sequentially comprises a blocking layer, a drainage layer and a catwalk ditch which is arranged at the slope toe of the face of the accumulation dam and used for collecting and draining water from outside to inside. Further, the barrier layer sequentially comprises cultivated soil and ecological bags from outside to inside, the drainage layer is a three-dimensional composite drainage net made of high-density polyethylene, and the thickness of the net core is 5-