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CN-224227723-U - Temporary blocking dam structure for tailing pond in cold region during winter ore drawing

CN224227723UCN 224227723 UCN224227723 UCN 224227723UCN-224227723-U

Abstract

The utility model relates to the technical field of tailing accumulation, in particular to a temporary blocking dam structure for winter ore drawing of a tailing pond in a cold region, wherein the temporary blocking dam is arranged between a sub-dam and an ore drawing pipe in winter, the blocking dam is arranged in parallel with the sub-dam, two sides of the cross section of the temporary blocking dam are sloping surfaces, a pit is arranged along the bottom of the sloping surface of a water facing side, a plurality of layers of geotextiles are paved on the surface of the sloping surface of the water facing side, grass curtains are paved on the geotextile surface at the lower part of the sloping surface, the geotextiles extend to the vertical surface or the bottom surface of the pit, the grass curtains extend to the middle part of the vertical surface of the pit, and mineral sand is filled in the pit to compress the geotextile and the grass curtains. The temporary blocking dam is piled between the sub-dam and the winter ore drawing pipe in winter, so that ore pulp flow of winter ore drawing is effectively prevented from impacting the sub-dam during the operation of the winter ore drawing pipe, and the safety of the sub-dam is ensured. And preventing fine particles from depositing at the bottom of the sub-dam to form a weak layer. The sub-dam seepage discharge and the second year of the dam pushing work are not affected.

Inventors

  • LI GENGHUI
  • HU KE
  • XIAO QIFEI

Assignees

  • 本溪钢铁(集团)有限责任公司
  • 本溪钢铁（集团）矿业有限责任公司

Dates

Publication Date
20260512
Application Date
20250513

Claims (7)

  1. 1. The utility model provides a cold area tailing storehouse is in winter and is put interim blocking dam structure of ore deposit, its characterized in that, interim blocking dam sets up between sub-dam and winter ore deposit pipe, and blocking dam and sub-dam parallel arrangement, the cross-section both sides of interim blocking dam are domatic, are equipped with the pit along the bottom of facing water side domatic, lay multilayer geotechnique's cloth on facing water side domatic surface, geotechnique's cloth surface of domatic lower part lays the geotechnique's curtain, geotechnique's cloth extends to on the facade or the bottom surface of pit, and the grass curtain extends to the middle part of the facade of pit, and the intussuseption of pit is filled with mineral sand and compresses tightly geotechnique's cloth and grass curtain.
  2. 2. The winter ore drawing temporary blocking dam structure of the tailing pond in the cold area according to claim 1, wherein the temporary blocking dam is more than 150 meters away from the ion dam.
  3. 3. The structure of the temporary blocking dam for winter ore drawing in a tailing pond in a cold area according to claim 1, wherein the temporary blocking dam is 0.5-1 m lower than the sub-dam.
  4. 4. The winter ore drawing temporary blocking dam structure of the tailing pond in the cold area according to claim 1, wherein the lower width of the temporary blocking dam is 14-16 meters.
  5. 5. The winter ore drawing temporary blocking dam structure of the tailing pond in the cold area according to claim 1, wherein the slope ratio of the slope surface is 1:2.
  6. 6. The winter ore drawing temporary blocking dam structure of the tailing pond in the cold area according to claim 1, wherein the depth of the pit is 3-3.5 m, and the width of the pit is 1-1.5 m.
  7. 7. The winter ore drawing temporary blocking dam structure of the tailing pond in the cold area according to claim 1, wherein the geotextile is 2-3 layers.

Description

Temporary blocking dam structure for tailing pond in cold region during winter ore drawing Technical Field The utility model belongs to the technical field of tailing accumulation, and particularly relates to a temporary blocking dam structure for tailing pond in cold regions in winter. Background When the tailing pond in the cold area is produced in winter, the ore drawing branch pipes on the dam body are used for discharging ore pulp, so that all valves on the branch pipes are frozen, normal ore drawing is impossible, and normal production is impossible. Therefore, in winter, ore discharging is carried out by connecting ore discharging pipes to the beach surface, and two ore discharging pipes are respectively arranged at two sides of the beach surface. The beach ore drawing flow is large, so that tailing pulp impacts the sub-dam, and the sub-dam is easily damaged. In addition, the tailing pulp flows back in front of the sub-dam, the fine particle tailings are deposited in front of the dam to form a weak layer, so that a wetting line is raised, the difficulty of pushing the dam is increased, and the safety of the dam body of the tailing pond is affected. Disclosure of Invention The utility model aims to solve the technical problem of providing a temporary blocking dam structure for a tailing pond in a cold region in winter, and solves the problem that ore pulp flows impact a sub-dam during the ore discharging period of an ore drawing pipe in winter. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a cold area tailing pond winter ore drawing temporary blocking dam structure, temporary blocking dam sets up between sub-dam and winter ore drawing pipe, and the cross-section both sides of temporary blocking dam are domatic, are equipped with the pit along the bottom of facing water side domatic, and the geotechnique cloth of laying the multilayer is folded on the surface of facing water side domatic, and the geotechnique cloth surface of domatic lower part lays the grass curtain, and the geotechnique cloth extends to on the facade or the bottom surface of pit, and the grass curtain extends to the middle part of the facade of pit, and the pit intussuseption is filled with mineral sand and is compressed tightly geotechnique cloth and grass curtain. The temporary barrage is more than 150 meters from the ion dam. The temporary blocking dam is 0.5-1 m lower than the sub-dam. The lower width of the temporary blocking dam is 14-16 meters. The slope ratio of the slope surface is 1:2. The depth of the pit is 3-3.5 m, and the width is 1-1.5 m. The geotextile is 2-3 layers. Compared with the prior art, the utility model has the beneficial effects that: The temporary blocking dam is piled between the sub-dam and the winter ore drawing pipe in winter, so that ore pulp flow of winter ore drawing is effectively prevented from impacting the sub-dam during the operation of the winter ore drawing pipe, and the safety of the sub-dam is ensured. And preventing fine particles from depositing at the bottom of the sub-dam to form a weak layer. The sub-dam seepage discharge and the second year of the dam pushing work are not affected. And a plurality of layers of geotechnical cloth and grass curtains are paved on the water facing slope of the temporary blocking dam, and the geotechnical cloth and the grass curtains are deeply buried, so that the strength of the temporary blocking dam is improved, and the seepage drainage function is ensured. Drawings FIG. 1 is a schematic diagram of a tailings pond in accordance with the present invention. Fig. 2 is a schematic structural view of the present invention. Fig. 3 is an enlarged view of a portion of the present invention. In the figure, 1 part of a sub-dam, 2 parts of a winter ore drawing pipe, 3 parts of a blocking dam, 4 parts of a pit, 5 parts of geotextile, and 6 parts of a straw curtain. Detailed Description In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is two or more. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary ski