CN208562052U - A kind of Gangue body diffusate ecological purification system - Google Patents

Abstract

The utility model relates to environmental improvement and field of mining, and in particular to a kind of Gangue body diffusate ecological purification system.By physisorphtion, the precipitation method, barrier method, wetland method integrated use, pollutant in effectively purification Gangue body leachate is percolated using three-level, it provides a kind of, it is easy to construct, it is permanently effective, later maintenance management is simple and easy, invests relatively low Gangue body diffusate combined method for purifying.Including three-level horizontal drowned flow continuous filter and shallow pond shoal and construct identical.It is from top to bottom respectively topsoil layer, middle layer gravel layer, bottom pebble layer in continuous filter, shoal upper cover consolidates shoal, the intensive wicker of cuttage, shallow pond part nature planting, the plant of prosthetic plantation with the matched gabion box of size.The utility model is mainly used in purifying the pollutant in Gangue body leachate.

Description

A kind of Gangue body diffusate ecological purification system

Technical field

The utility model relates to environmental improvement and field of mining, more specifically, are related to a kind of gangue diffusate ecology Continuous filter purification techniques.

Background technique

The gangue that coal driving, exploitation and choosing generate during washing, is the most important pollution sources in mine.In general, Gangue accounts for the 10%-30% of raw coal output.A large amount of gangue is stacked after eluviation around coal mine, generates a series of rings Border problem.A large amount of leaching water are discharged when meeting with the influence that precipitation penetrates into spontaneous combustion Gangue body, destroy earth's surface water ecology system System, influences the existence of fish and aquatile, by the runoff contaminating action soil of water body, also influences surface water body as work Industry, agricultural, fishery and domestic water source use.Certainly whether Gangue body diffusate pollutant component with its own ingredient or Fire related, and diffusate acid-base property, seepage discharge and exudation time are uncertain, therefore there is very big for the processing of gangue diffusate It is difficult.

(Zhang Mingliang, 2011, coal journal, flyash makees the reparation of gangue acid heavy metal leachate to documents and materials With) use batch processing adsorption experiment and column leaching simulated experiment, analysis Powder ash adsorption heavy metal, processing gangue acidity weight The effect and mechanism of metal leachate, the results showed that flyash has the potentiality of absorption gangue acid heavy metal leachate, but Be flyash equally it is pollutant, the purpose administered for a long time is not achieved.Documents and materials (Shinan's enlightening etc., 2013, grind by environmental science Study carefully, use from orpiment soil in-situ immobilization gangue leachate contamination underground water) by soil column-leaching test, PRB simulation test with And site remediation test, the adsorptivity of heavy metal and As in gangue leachate are studied, the results showed that from orpiment soil (0.05~0.10mm of partial size), sandy loam (0.05~0.10mm of partial size) and fine sand (0.10~0.25mm of partial size) are to bastard coal urolithiasis The adsorption capacity of heavy metal (Zn, Mn, Pb, Cr, Cu, Cd, Hg) and As in filtrate be from orpiment soil > sandy loam > fine sand, by There is known to this from orpiment soil the ability for repairing heavy metal in gangue filtrate.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provide a kind of ecology, be easy to construct, permanently effective and later period ties up Pillar manages simple and easy Gangue body diffusate ecological purification system.

In order to solve the above-mentioned technical problem, the technology employed by the present utility model is

A kind of Gangue body diffusate ecological purification system includes horizontal drowned flow continuous filter and shallow pond shoal chain, the level Undercurrent continuous filter includes soil horizon, gravel layer and pebble layer, is from top to bottom respectively soil horizon, gravel layer and cobblestone in pond Layer, the surrounding in pond are the cobblestone of natural packing as pool wall；The shallow pond shoal chain includes shallow pond and shoal；The flat undercurrent Continuous filter and shallow pond shoal chain are built in Gangue body diffusate river, and horizontal drowned flow continuous filter is connected company with shallow pond shoal chain It connects.

Preferably, it is arranged in Gangue body downstream along natural flows direction setting three-level horizontal drowned flow continuous filter and three-level is shallow The setting of pond shoal chain, horizontal drowned flow continuous filter and shallow pond shoal chain interval are arranged, and are shallow pond between adjacent level undercurrent continuous filter Shoal chain.

Preferably, the soil horizon thickness 30cm, gravel layer is with a thickness of 50cm, and for pebble layer with a thickness of 70cm, pool wall is high Degree is 2m, and it is highly 2m, width is identical as river width that the horizontal drowned flow diafiltration pond length of composition, which is 5m,.Other materials is not required to, It is easy to operate, environment is had little effect, and there is antifreeze effect in north of china in winter.

Preferably, the soil horizon is soft clay, infiltration coefficient 0.025-0.35cm/h.

Preferably, gravel size is 5-8cm in the gravel layer.The pebble layer cobble is 8-10mm.

Preferably, the shallow pond shoal chain length is 50-100m, every one shoal of 10m setting, between adjacent shoal River is shallow pond.

Preferably, the shoal is cobblestone heap body, and is provide with gabion box on cobblestone heap body.

Preferably, the shoal height is 50cm, width 100cm, and length is identical as river width.The horizontal drowned flow The pool wall plantation varieties good with grafting plantation dry land willow equal on shoal, dryland willow or tolerance performance in continuous filter.Dry land willow and river are flourishing Root system can fix cobblestone wall, metal ion and certain harmful substances also can be absorbed to a certain extent.Planting density It can be adjusted according to the actual situation with engine request, generally plant a dry land willow every 1.5m kind.Natural planting in shallow pond, nobody The plant that work post is planted.

Compared with prior art, it is had the beneficial effect that possessed by the utility model

Horizontal drowned flow continuous filter and shallow pond shoal chain of this utility model using thtee-stage shiplock, while it is good to plant tolerance performance Dry land willow, dryland willow etc., the method that full ecological is utilized purifies spontaneous combustion Gangue body diffusate.Sewage is in whole system Gap in flow, the fixed engineering of planting plants, and the certain certain metals of absorption and harmful substance are played in its tissue Effect.The effects of mechanism of action of whole system includes absorption, delay, filtering, precipitating, residue accumulated.Suitable for gangue The processing of heap body leachate, is easy to construct, and later maintenance management is simple and easy, and processing cost is low, permanently effective, shadow low to environment It rings, can also beautify the environment, possess aesthetic value after a period of time maintenance.

Detailed description of the invention

Fig. 1 is a kind of Gangue body diffusate ecological purification system figure provided by the utility model；

Fig. 2 is horizontal drowned flow continuous filter；

Fig. 3 is horizontal drowned flow continuous filter sectional view；

Fig. 4 is shallow pond shoal chain schematic diagram；

Fig. 5 is shoal schematic diagram.

In Fig. 1: 1 being horizontal drowned flow continuous filter, 2 be shallow pond shoal chain, 3 be soil horizon, 4 be gravel layer, 5 be cobblestone Layer, 6 be shallow pond, 7 be shoal.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figs. 1-2, Gangue body diffusate is gradually reached by three-level horizontal drowned flow continuous filter 1 and shallow pond shoal chain 2 To the purpose of purification Gangue body diffusate.Gangue diffusate enters first order horizontal drowned flow continuous filter 1 through natural flows, the Primary plateaus undercurrent continuous filter 1 enters the shallow pond shoal chain 2 of the first order after handling, and is slowed down by the shallow pond shoal chain 2 of the first order, mistake Filter, natural subsidence, then flow to second level horizontal drowned flow continuous filter 1, Gangue body diffusate is via the second level shoal Qian Chi chain 2 Slow down, filtering, natural subsidence, then flows to third level horizontal drowned flow continuous filter 1, Gangue body diffusate is via the shallow pond of the third level Shoal chain 2 slows down, filters, flows out after natural subsidence.By the Gangue body of the processing such as repeated filtering, barrier, sedimentation Diffusate can reach national water environment quality standard, final to import river outflow.

As shown in figure 3, being from top to bottom respectively set in horizontal drowned flow continuous filter 1: the soil horizon 3 of first layer 30cm thickness, institute Soil is soft clay, and infiltration coefficient 0.025cm/h-0.35cm/h consumes Gangue using the organic matter in soil The oxygen dissolved in body diffusate；The second layer is the gravel layer 4 of thickness 50cm, partial size 5-8mm；Third layer laying depth is 70cm's Pebble layer 5, partial size 8-10mm, overall thickness 150cm.1 length of horizontal drowned flow continuous filter is 5m, is highly 2m, width and river Of same size, 1 surrounding of horizontal drowned flow continuous filter is the cobblestone wall of the natural packing of high about 2m, is not required to other materials, operation letter It is single, environment is had little effect, and there is antifreeze effect, the cobblestone wall of 1 surrounding of horizontal drowned flow continuous filter in north of china in winter The dry land willow of well developed root system is planted in top, and flourishing root system can fix cobblestone wall, gold also can be absorbed to a certain extent Belonging to ion and certain harmful substances, planting density can be adjusted with engine request according to the actual situation, generally every 1.5m kind Plant a dry land willow.

As illustrated in figures 4-5, shallow pond shoal chain 2 includes shallow pond 6 and shoal 7, and chain 2 length in shallow pond shoal is 50-100m, every A shoal 7 is arranged in 10m, is shallow pond 6 between adjacent shoal 7.The shoal 7 is that height is 50cm, width 100cm, ground The about high 30cm in part, length cobblestone heap body identical with river width, and cover and shoal is consolidated with the matched gabion box of size, shallowly The intensive dryland willow wicker of cuttage on beach, withy press strip, withy select long 30-50cm, and the withy of thick 1-2cm carries out cuttage, shallow pond The natural planting in part, the plant of prosthetic plantation.

Only the preferred embodiment of the utility model is explained in detail above, but the utility model be not limited to it is above-mentioned Embodiment can also not depart from the utility model aims within the knowledge of a person skilled in the art Under the premise of various changes can be made, various change should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of Gangue body diffusate ecological purification system, it is characterised in that: the purification system includes horizontal drowned flow continuous filter (1) shoal He Qianchi chain (2), the horizontal drowned flow continuous filter (1) include soil horizon (3), gravel layer (4) and pebble layer (5), It is from top to bottom respectively soil horizon (3), gravel layer (4) and pebble layer (5) in pond, the surrounding in pond is the cobblestone of natural packing As pool wall；The shallow pond shoal chain (2) includes shallow pond (6) and shoal (7)；The horizontal drowned flow continuous filter (1) and shallow pond are shallow Beach chain (2) is built in Gangue body diffusate river, and horizontal drowned flow continuous filter (1) and shallow pond shoal chain (2) are connected in series.

2. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: described horizontal latent Stream continuous filter (1) is set as three-level, and the shallow pond shoal chain (2) is set as three-level, horizontal drowned flow continuous filter (1) and shallow pond shoal Chain (2) interval is arranged, and is shallow pond shoal chain (2) between adjacent level undercurrent continuous filter (1).

3. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the soil horizon (3) thickness 30cm, gravel layer (4) is with a thickness of 50cm, and for pebble layer (5) with a thickness of 70cm, pool wall height is 2m, the level of composition Undercurrent continuous filter (1) length is 5m, is highly 2m, width is identical as river width.

4. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the soil horizon It (3) is soft clay, infiltration coefficient 0.025-0.35cm/h.

5. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the gravel layer (4) gravel size is 5-8cm in.

6. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the cobblestone Layer (5) cobble is 8-10mm.

7. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the shallow pond is shallow Chain (2) length in beach is 50-100m, and a shoal (7) is arranged every 10m, is shallow pond (6) between adjacent shoal (7).

8. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the shoal (7) it is cobblestone heap body, and is provide with gabion box on cobblestone heap body.

9. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the shoal It (7) is highly 50cm, width 100cm, length is identical as river width.

10. a kind of Gangue body diffusate ecological purification system according to claim 1, it is characterised in that: the level The pool wall plantation varieties good with grafting plantation dry land willow equal on shoal (7), dryland willow or tolerance performance in undercurrent continuous filter (1).