Isolation belt device for blocking and treating acid mine wastewater

Abstract

The utility model discloses an isolation belt device for blocking and treating acid mine wastewater, and belongs to the technical field of mine wastewater isolation. The device comprises a buoy, an isolation belt fixing frame is arranged at the bottom of the buoy, a weight settling box is arranged at the bottom of the isolation belt fixing frame, and filler is filled in the weight settling box; biomass filler is arranged in the isolation belt fixing frame, and three-dimensional elastic brush filler is arranged on the front side and the rear side of the isolation belt fixing frame in a binding mode. The device disclosed by the utility model is simple in structure, can be effectively assembled according to site conditions, can be in contact with the bottom, realizes multi-depth treatment, can effectively reduce the concentration of dissolved oxygen converged into AMD, gradually improve the bottom layer environment, promote the growth of anaerobic microorganisms, perform biofilm formation synergistic treatment by using indigenous microorganisms and avoid the problem of adaptability of exogenous microbial agents, and can be effective for a long time; the cost and the risk of additionally adding nutrient sources and microorganisms are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine wastewater isolation technical field more specifically, relate to a kind of isolation zone device of barrier treatment acidic mine wastewater. BACKGROUND

[0002] With the rapid development of science and technology, the demand for mineral resources is increasing, which will form mine / cave and produce a large amount of waste rock. The sulfide minerals in the waste rock will form acidic mine drainage (AMD) under the action of chemical and microbial oxidation, and fill the mine with runoff, forming an AMD reservoir with low pH and multiple heavy metal pollution. Obviously, the AMD reservoir has large reserves, high environmental risk and great difficulty in treatment. Once the AMD reservoir overflows or cracks, it will cause serious harm to the surrounding environment and ecosystem, posing a great environmental risk. Current source treatment technologies mainly focus on pollution control in source waste rock dump sites, and on AMD reservoir treatment, mainly on acid neutralization, heavy metal adsorption and extraction. At the same time, the rainfall in summer reaches a large amount, causing a large amount of rainwater to accumulate in the cracks of the dump site and continuously flow into the AMD reservoir. Currently, there are few technologies to block the path of acidic mine drainage in the reservoir, and it is difficult to explore the cracks where the acidic water from the dump site flows into the reservoir, so it cannot be completely blocked. Therefore, the development strategy should focus on blocking and controlling the input point of fresh AMD in the AMD reservoir, and the focus should not be on reducing the amount of AMD input, but on blocking heavy metals in AMD and reducing their concentration. This approach can assist in the repair of the reservoir and reduce the impact of acidification and metal toxicity.

[0003] There is no AMD treatment isolation zone in the current technology. The closest related equipment technology is the ecological floating bed. Ecological floating bed is one of the more common devices in water body repair and purification field, and is widely used. The current mainstream floating bed structure includes floating bed framework, floating block, plant planting area, filler area, fixed rope and plant. The independent container is filled with filler, and plants are planted on top. The floating bed framework provides overall structural support, and the floating block provides buoyancy to control the overall sinking depth. Water enters through the hole in the bottom of the container, is preliminarily treated by the filler, reaches the plant tolerance range, and is purified by plant metabolism and enrichment. However, this method of treating AMD wastewater cannot reach the bottom of the acid reservoir, and can only be effective in shallow water. Therefore, the ecological floating bed on the market cannot achieve comprehensive treatment of AMD, cannot improve the anaerobic environment at the bottom of the water layer, and cannot achieve the effect of AMD blocking treatment.

[0004] In the patent "CN216273346U - Ecological floating bed for treating acidic heavy metal wastewater", the device includes a floating bed structure module and a floating bed plant working module, a fungus working module and an algae working module arranged in the floating bed structure module: this patent has the following problems:

[0005] The device is difficult to reach the bottom, and the treatment effect is limited; the newly merged acid water contains a certain dissolved oxygen concentration, which increases the dissolved oxygen concentration of the bottom water, inhibits the metabolism of anaerobic bacteria, and at the same time is easy to oxidize ferrous iron and produce acidity; these aspects are not considered in these patents; the extremely acidic and oligotrophic environment of AMD makes it difficult for plants to grow; the oligotrophic environment and the water exchange characteristics of the floating bed make it difficult to ensure sufficient nutrients inside the floating bed and promote microbial growth.

[0006] Due to the difficulty in treating AMD reservoirs and the continuous inflow of AMD, a large amount of wastewater treatment costs are generated, and there is a serious environmental risk, so equipment and technology that can long-term alleviate the acidity and metal concentration of the inflow AMD are urgently needed. The utility model aims at the treatment demand of AMD reservoir, and designs an AMD in-situ blocking device which can reduce the acidity, metal concentration and dissolved oxygen of the inflow AMD. Utility model content

[0007] 1. Technical problem to be solved by the utility model

[0008] In view of the defects and deficiencies of the prior art, the utility model provides an isolation belt device for blocking and treating acid mine wastewater, which is simple in structure, can be effectively assembled according to the site conditions, and can be deeply processed to multiple depths. Mainly adopt biomass filler as the main isolation material, which can effectively reduce the dissolved oxygen concentration of the inflow AMD, gradually optimize the bottom environment, and promote the reproduction of anaerobic microorganisms. The indigenous microorganisms are used for biofilm formation and synergistic treatment, which reduces the inadaptability of additional bacteria, can be long-term effective, and reduces the cost and risk of additional nutrient source and microorganisms.

[0009] 2. Technical scheme

[0010] In order to achieve the above purpose, the technical scheme provided by the utility model is:

[0011] The isolation belt device for blocking and treating acid mine wastewater comprises a plurality of isolation units, each isolation unit is provided with a float, the bottom of the float is provided with an isolation belt fixed frame, the bottom of the isolation belt fixed frame is provided with a sediment weight box, and the sediment weight box is filled with filler.

[0012] The isolation belt fixed frame is provided with biomass filler, and the front and rear sides of the isolation belt fixed frame are bound and provided with three-dimensional elastic brush filler.

[0013] Further, the isolation belt fixed frame is uniformly distributed with connecting through holes around, the float is fixedly connected with the connecting through holes at the top end of the isolation belt fixed frame through thick steel wire, and the sediment weight box is fixedly connected with the connecting through holes at the bottom end of the isolation belt fixed frame through thick steel wire.

[0014] Further, the surface of the sink weight box is uniformly provided with water passing holes with a diameter of 2 cm.

[0015] Further, a plurality of groups of isolation units are connected to form an integrated isolation belt device, and a plurality of groups of isolation belt fixing frames are arranged side by side along the width direction, and the upper end of each group of isolation belt fixing frames is provided with a buoy, and the lower end of each group of isolation belt fixing frames is provided with a sink weight box.

[0016] Further, the side edges of the isolation belt fixing frame are spaced apart to be provided with connecting through holes, and two adjacent groups of isolation belt fixing frames are connected to each other by passing through the connecting through holes by thick steel wires.

[0017] Further, the isolation belt fixing frame has an external length of 4.0 m, a width of 1.5 m, and a thickness of 2 cm, and the length of the three-dimensional elastic brush filler is 3.8 m, and the interval between two adjacent groups of three-dimensional elastic brush fillers is 30 cm.

[0018] Further, the filler is porous ceramic particles, activated carbon particles, and biogas residue, and the mixing ratio is 1:1:3, and the diameter of the porous ceramic particles and the activated carbon particles is 3 cm.

[0019] Further, a plurality of unit frames are arranged in the isolation belt fixing frame, and the biomass filler is filled in each unit frame, and the biomass filler has a width of 1 m, a length of 1.5 m, and a thickness of 2 cm, and is in a curtain shape; the biomass filler is fixed by the connecting through holes on the side edges of the isolation belt fixing frame through thick steel wires.

[0020] A method for blocking and treating acid mine drainage by using an isolation belt device:

[0021] According to the depth of 1-2 m of the reservoir and the lake extension, the length of the isolation belt fixing frame is selected, and the biomass filler is filled in the isolation belt fixing frame; the three-dimensional elastic brush filler is bound at an interval of 30 cm outside the isolation belt fixing frame.

[0022] The bottom of the isolation belt fixing frame is connected to the sink weight box by using thick steel wires, and the sink weight box is filled with porous ceramic particles, activated carbon particles, and biogas residue, and the mixing ratio is 1:1:3, and the mixture is fully mixed;

[0023] Two adjacent isolation belt fixing frames are connected by using thick steel wires through the connecting through holes, and the bottom sink weight boxes are connected in pairs; the buoy is connected to the top of the isolation belt fixing frame by using thick steel wires, and after the overall connection is completed, it is vertically sunk into the water;

[0024] The bottom sink weight box touches the riverbed, and the buoy ensures that the isolation belt fixing frame is perpendicular to the water surface or inclined at a small angle of 0-10 degrees.

[0025] Further, the isolation belt device has a self weight, can be placed by using a crane, after being placed, the biomass filler state is checked every half year, if no crushing phenomenon occurs, no replacement and maintenance are needed

[0026] Further, the isolation belt fixing frame is internally provided with a plurality of unit frames, the biomass filler is filled in each unit frame, the biomass filler is 1m wide, 1.5m long and 2cm thick, and the biomass filler is fixed through a coarse steel wire and a connecting through hole at the side edge of the isolation belt fixing frame.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the technical scheme has the following beneficial effects:

[0029] The utility model discloses a biomass filler is used as main isolation material, outside suitable lightweight high strength metal material is used as isolation belt fixing frame fixed, inside fills and hangs biomass filler, bottom uses the hollow settlement weight box of many holes, fills the activated carbon, porous ceramsite, biogas residue in the inside, and settlement weight box is fixed in the bottom of isolation belt fixing frame, isolation belt fixing frame top connects the float, and the side edge vertical fixed three -dimensional elastic brush filler, make whole vertical fixed in the reservoir edge, because the reservoir along the coast shape is changeable, can use multiple this device combination connection formation barrier belt.

[0030] The utility model discloses simple structure can effectively assemble according to the on -the -spot condition, satisfy the demand of on -the -spot implementation more, and the device can reach the bottom, and the multiple depth treatment is handled, the dissolved oxygen concentration of the confluence AMD is reduced, the bottom environment is gradually improved, the anaerobic microorganism growth is promoted, the indigenous microorganism is used to carry out the film formation and increase the efficiency processing, the inadaptability of additional bacterium agent is reduced, can long -term effectively, and the cost and risk of additional nutrient source, microorganism are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the front view of the utility model;

[0032] Figure 2 It is the side view of the utility model;

[0033] Figure 3 It is the assembly effect drawing of the utility model;

[0034] Figure 4 It is the isolation belt implementation effect of the utility model Figure 1 ;

[0035] Figure 5 It is the isolation belt implementation effect of the utility model Figure 2 .

[0036] In the figure: 1, buoy; 2, connecting through hole; 3, three-dimensional elastic brush filler; 4, biomass filler; 5, isolation belt fixing frame; 6, sedimentation weight box; 7, filler; 8, water through hole; 9, thick steel wire. DETAILED DESCRIPTION

[0037] The utility model will be further described below in combination with the drawings and examples:

[0038] Example 1

[0039] From Figures 1-2 It can be seen that the isolation belt device for blocking and treating acid mine wastewater of the embodiment comprises a plurality of isolation units, each isolation unit comprises a buoy 1, the bottom of the buoy 1 is provided with an isolation belt fixing frame 5, the bottom of the isolation belt fixing frame 5 is provided with a sedimentation weight box 6, the sedimentation weight box 6 is filled with a filler 7, the surface of the sedimentation weight box 6 is uniformly provided with a water through hole 8, the arrangement can be adjusted at will, and the diameter of the water through hole 8 is 2 cm;

[0040] The isolation belt fixing frame 5 is uniformly distributed with connecting through holes 2 around, the buoy 1 is fixedly connected with the connecting through holes 2 at the top end of the isolation belt fixing frame 5 through thick steel wires 9, and the sedimentation weight box 6 is fixedly connected with the connecting through holes 2 at the bottom end of the isolation belt fixing frame 5 through thick steel wires 9;

[0041] The isolation belt fixing frame 5 is provided with a biomass filler 4, and the isolation belt fixing frame 5 is provided with three-dimensional elastic brush fillers 3 on the front and back sides and is bound; the burr structure has a large contact area, can promote the adhesion of microorganisms, forms a biological membrane, and blocks and treats acid water;

[0042] The overall size and weight of the sedimentation weight box 6 are determined according to the buoyancy of the biomass filler 4 in the early stage, the biomass filler 4 is mainly composed of straw stalks and is prepared into a curtain-shaped filler by mixing other slow-release carbon sources, the biomass filler 4 has a large amount of air in the inside, has a large water contact area, and has a large amount of buoyancy, and is difficult to sink automatically in the early stage, so the buoyancy of the buoy 1 needs to bear 50 kg of weight;

[0043] The isolation belt fixing frame 5 is 4.0 m long, 1.5 m wide and 2 cm thick outside, the three-dimensional elastic brush filler 3 is 3.8 m long, and the two adjacent three-dimensional elastic brush fillers 3 are spaced apart by 30 cm.

[0044] The filler 7 is a mixture of porous ceramic particles, activated carbon particles and biogas residue at a ratio of 1:1:3, and the diameters of the porous ceramic particles and the activated carbon particles are 3 cm, which is larger than the diameter of the water through hole 8;

[0045] The sedimentation weight box 6 formed by filling the filler 7 can provide slow-release nutrient sources, can adsorb heavy metals, and can adhere to microorganisms;

[0046] The isolation belt fixed frame 5 is provided with a plurality of unit frames, and the biomass filler 4 is filled in each unit frame. The biomass filler 4 is 1 m wide, 1.5 m long and 2 cm thick, and is in a curtain shape. The length, width and thickness of the biomass filler 4 can be selected as required. The biomass filler 4 is fixed through the connecting through hole 2 at the side edge of the isolation belt fixed frame 5 by the thick steel wire 9.

[0047] Since the biomass filler 4 has gaps allowing the acid water to pass through, the two-side three-dimensional elastic brush filler 3 adheres microorganisms to form a biofilm, promotes acid water treatment, and the biogas residue in the filler 7 in the bottom sediment weight box 6 provides a slow-release nutrient source to promote the growth and metabolism of anaerobic microorganisms. The internal porous ceramic can adhere to microorganisms to promote anaerobic treatment of the bottom water. In addition, the water exchange hole 8 of the sediment weight box 6 promotes water exchange. Through the upper adhered algae, a large amount of dissolved oxygen can be generated to promote the metabolism of aerobic microorganisms in the upper and middle layers. At the same time, the algae can provide nutrients for the microorganisms in the bottom layer after death and settlement. The microorganisms in the middle and lower layers can preliminarily treat the fissure-inflowing acid water, reduce heavy metals, acidity and dissolved oxygen, and optimize the internal environment of the acid water reservoir.

[0048] Embodiment 2

[0049] From Figure 3 It can be seen that the isolation belt device for blocking and treating acid mine wastewater in the embodiment comprises a plurality of isolation units which are connected to form an integrated isolation belt device. The isolation belt fixed frame 5 is arranged in parallel along the width direction and is provided with a plurality of groups. The upper end of each group of isolation belt fixed frames 5 is provided with a float 1, and the lower end of each group of isolation belt fixed frames 5 is provided with a sediment weight box 6. The side edges of the isolation belt fixed frame 5 are provided with connecting through holes 2. The thick steel wire 9 passes through the connecting through holes 2 of the adjacent two groups of isolation belt fixed frames 5 and is connected to each other, so as to form an integrated isolation belt device.

[0050] The entire isolation belt device can be placed in water for a long time without being taken out and replaced. The slow-release carbon source effect of the biomass filler 4 can have a long-term effect.

[0051] Embodiment 3

[0052] From Figure 3 It can be seen that the method of the isolation belt device for blocking and treating acid mine wastewater in the embodiment comprises the following steps:

[0053] According to the depth of 1-2 m of the reservoir and the lake extension, the length of the isolation belt fixed frame 5 is selected. The length-width ratio can be set according to the depth. The length is temporarily set to 4 m, and the width is 1.5 m. The biomass filler 4 is filled in the isolation belt fixed frame 5, and a hanging curtain with a length of 4 m, a length of 1.5 m and a thickness of 2 cm can be made. The three-dimensional elastic brush filler 3 is bound at intervals of 30 cm outside the isolation belt fixed frame 5.

[0054] The bottom of the isolation belt fixing frame 5 is connected with the sediment weight box 6 by using the thick steel wire 9, and the sediment weight box 6 is filled with porous ceramic particles, activated carbon particles and biogas residue in a mixing ratio of 1:1:3 and is fully mixed;

[0055] The adjacent two groups of isolation belt fixing frames 5 are connected by using the thick steel wire 9 through the connecting through holes 2, and the bottom sediment weight boxes 6 are also connected in pairs; the float 1 is connected with the top of the isolation belt fixing frame 5 by using the thick steel wire 9, and after the overall connection is completed, the whole is vertically sunk into water;

[0056] The bottom sediment weight box 6 touches the riverbed bottom, and the float 1 ensures that the isolation belt fixing frame 5 is perpendicular to the water surface or is inclined at a small angle of 0-10 degrees.

[0057] If the riverbank corner is ignored, it can be directly placed in a straight line; if the riverbank depth is not the same, the length of the isolation belt fixing frame can be modified according to the riverbank depth, and the whole is placed after being connected;

[0058] The isolation belt device has a self-weight, and can be placed by using a crane; after being placed, the biomass filler 4 condition is checked every six months, if no crushing phenomenon occurs, no replacement and maintenance are needed, and it is expected that the isolation belt can be maintained for 3-4 years after being placed.

[0059] The utility model uses the biomass filler 4 as the main isolation material, uses the light high strength metal material as the isolation belt fixing frame 5 outside, fills the suspended biomass filler 4 inside, uses the hollow sediment weight box 6 with the porous hole at the bottom, fills the activated carbon, the porous ceramic particle, the biogas residue inside, fixes the sediment weight box 6 on the bottom of the isolation belt fixing frame 5, connects the float 1 on the top of the isolation belt fixing frame 5, and fixes the vertical three-dimensional elastic brush filler 3 on the side, so that the whole is fixed vertically on the reservoir bank, because the reservoir bank shape is changeable, so a plurality of the devices can be combined to form the barrier belt.

[0060] The utility model has simple structure, can be effectively assembled according to the field condition, can meet the needs of field implementation more, the device can touch the bottom, and the multiple depth treatment is carried out; the dissolved oxygen concentration of the AMD inflow is reduced, the bottom environment is gradually improved, the growth of anaerobic microorganisms is promoted, the indigenous microorganism is used to carry out the biofilm formation and efficiency treatment, the inadaptability of additional bacteria agent is reduced, the long-term effect can be achieved, and the cost and risk of additional nutrient source and microorganism are reduced.

[0061] The utility model discloses the abandonment of the energy consumption of the existing process ectopic treatment, uses the enrichment of the indigenous microorganism to reduce the environmental risk that the additional other source microorganism can cause, and the biomass filler 4 can provide the slow-release carbon source, reduces the organic pollution caused by additional other nutrient sources (for example, biogas liquid) and the like.

[0062] The utility model discloses can go into the AMD reservoir bottom, increase the water layer that cannot be touched in the existing device, reduce the input of dissolved oxygen simultaneously, optimize the anaerobic environment of AMD bottom layer, promote the growth of anaerobic microorganism. A large number of algae are enriched in the shallow layer part of the utility model, and their death can provide carbon source for the anaerobic microorganism in the bottom layer, and the biomass filler 4 provides slow-release carbon and nitrogen source, promoting the growth of microorganism.

[0063] The utility model discloses upper part attached algae and aerobic microorganism, middle part attached facultative anaerobic microorganism, bottom part attached anaerobic microorganism, and straw can provide slow-release carbon and nitrogen for microorganism, promote growth, can carry out preliminary treatment to crack influx AMD simultaneously, consume dissolved oxygen, reduce acidity and metal concentration, reduce the dissolved oxygen of bottom layer water, inhibit the acidity produced by ferrous oxidation, fix in situ secondary mineral simultaneously, and reduce metal release.

[0064] The utility model discloses can adapt to the original ecological environment of AMD reservoir, need not additional supplement nutrition element, carry out biological membrane formation through biomass filler, three -dimensional elastic brush filler, multi -hole ceramsite, and AMD aboriginal algae has the wall -hugging characteristic, the utility model provides the attachment point, can first step handle AMD.

[0065] In the prior art, using sulphate-reducing bacteria (SRB), green algae and other microorganisms suitable for extreme acidic conditions can effectively treat acid mine drainage, improve the pH value of wastewater, and effectively remove various harmful heavy metals, and the method has the advantages of low cost, no secondary pollution, recyclable AMD heavy metals and the like;

[0066] The isolation belt device of the utility model cooperates with the above-mentioned treatment process, which can alleviate the input of oxidation force in fresh acid water to the interior of the reservoir on the one hand, and simultaneously repair the reservoir water body in the interior of the isolation belt on the other hand, realizes synchronous treatment, and achieves better treatment effect.

[0067] Example 4

[0068] From Figure 4 It can be seen that the in-situ isolation treatment effect of high-iron AMD reservoir is:

[0069] In a high-iron AMD reservoir, the side near the dump site is most prone to produce leach runoff and crack water influx, so the isolation belt is placed on this side. The best placement period of the isolation belt is spring, when the temperature gradually rises, which is suitable for algae growth.

[0070] After 30 days, a large number of algae in the reservoir adhered to the isolation belt. The vertical water samples at the center point of the reservoir and the isolation belt point were compared. The results showed that the chlorophyll a content of the shallow water was significantly higher than that of the isolation belt laid in the center of the lake. The isolation belt could promote the adhesion of algae to the upper layer, and the dissolved oxygen in the upper layer was significantly higher than that in the center of the reservoir. Although the pH of the isolation belt point was slightly higher than that of the center of the reservoir, the acidity was significantly reduced by about 40%. Due to the laying of the isolation belt, the dissolved oxygen concentration in the bottom layer was significantly reduced, reducing iron oxidation, promoting the metabolism of sulfate reducing bacteria, and reducing the concentration of sulfate in the bottom layer. In addition, the AMD reservoir is mainly regulated by the Fe redox cycle, so the natural attenuation process of the acid reservoir is slow, but the laying of the isolation belt can significantly reduce the content of iron and fix Fe in other forms.

[0071] Overall, the laying of the isolation belt has a significant effect and can alleviate the pressure of AMD reservoir water treatment.

[0072] Example 5

[0073] From Figure 5 It can be seen that the in-situ blocking treatment effect during the acid neutralization of the AMD reservoir

[0074] In a high-iron AMD reservoir, the side near the dump site is most likely to produce leachate runoff and fissure water inflow, so the isolation belt is placed on this side. The best time to place the isolation belt is in the spring, when the temperature gradually rises, which is suitable for algae growth.

[0075] After 180 days, the AMD reservoir has just completed acid neutralization, causing the pH of the surface water to rise by more than 6.5. Due to the large number of algae adhering to the isolation belt, the algae produce alkali, causing the pH of the isolation belt point to be significantly higher than that of the center of the reservoir. The vertical water samples at the center point of the reservoir and the isolation belt point were compared. Due to acid neutralization, a large number of algae in the reservoir died and disappeared, but the results showed that the chlorophyll a content of the shallow water at the isolation belt point was still high, indicating that an algae adhesion layer had formed in the upper layer, and after the acid neutralization was completed, the algae grew outward under the promotion of the slow-release carbon source. Due to the large amount of water in the reservoir, acid neutralization can only ensure that the pH of the shallow water is high. The pH of the shallow water is higher than 7.0, so the acidity is almost 0 mg / L, and the Fe metal concentration is almost 0 mg / L. The data shows that the acidity of the middle and lower water layers is significantly reduced by about 30%. Due to the laying of the isolation belt, the dissolved oxygen concentration in the bottom layer is significantly reduced, reducing iron oxidation, promoting the metabolism of sulfate reducing bacteria, and reducing the concentration of sulfate in the bottom layer. In addition, the AMD reservoir is mainly regulated by the Fe redox cycle, so the natural attenuation process of the acid reservoir is slow, but the laying of the isolation belt can significantly reduce the content of iron and fix Fe in other forms. Due to the long placement time of the isolation belt, the metal fixation capacity is significantly higher than that of the 30-day laying result, with a reduction of about 50% in metal concentration. In addition, due to the long-term laying of the isolation belt, the overall Fe concentration in the acid reservoir is reduced by about 10%.

[0076] The isolation belt laying effect is remarkable in whole, and can relieve the pressure of AMD reservoir water treatment.

[0077] The above describes the utility model and its embodiments in a schematic way, and the description is not restrictive, and the drawings only show one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if the ordinary skilled in the art is inspired thereby, without departing from the utility model creation purpose, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A barrier device for treating acidic mine wastewater, comprising several barrier units, each barrier unit being equipped with a float (1), characterized in that: The bottom of the pontoon (1) is provided with a barrier fixing frame (5), and the bottom of the barrier fixing frame (5) is provided with a settling weight box (6), which is filled with filler (7). The isolation belt fixing frame (5) is provided with biomass filler (4), and three-dimensional elastic brush filler (3) is tied to the front and rear sides of the isolation belt fixing frame (5).

2. The isolation zone device for blocking and treating acidic mine wastewater according to claim 1, characterized in that: The isolation belt fixing frame (5) is evenly distributed with connecting through holes (2) around its perimeter. The float (1) is fixedly connected to the connecting through hole (2) at the top of the isolation belt fixing frame (5) through a thick steel wire (9). The sinking weight box (6) is fixedly connected to the connecting through hole (2) at the bottom of the isolation belt fixing frame (5) through a thick steel wire (9).

3. The isolation zone device for blocking and treating acidic mine wastewater according to claim 2, characterized in that: The surface of the settling weight box (6) is uniformly provided with water passage holes (8), and the diameter of the water passage holes (8) is 2cm.

4. The isolation belt device for blocking and treating acidic mine wastewater according to claim 2, characterized in that: Multiple isolation units are interconnected to form an integrated isolation belt device. Multiple isolation belt fixing frames (5) are arranged in parallel along the width direction. Each isolation belt fixing frame (5) has a float (1) at the upper end and a sinking weight box (6) at the lower end.

5. The isolation zone device for blocking and treating acidic mine wastewater according to claim 4, characterized in that: The isolation belt fixing frame (5) has connecting through holes (2) spaced apart on its side. Two adjacent isolation belt fixing frames (5) are connected to each other by passing through the connecting through holes (2) with thick steel wire (9).

6. The isolation zone device for blocking and treating acidic mine wastewater according to claim 5, characterized in that: The isolation belt fixing frame (5) has an external length of 4.0m, a width of 1.5m, and a thickness of 2cm. The three-dimensional elastic brush filler (3) has a length of 3.8m, and the two adjacent sets of three-dimensional elastic brush fillers (3) are spaced 30cm apart.

7. The isolation zone device for blocking and treating acidic mine wastewater according to claim 6, characterized in that: The isolation belt fixing frame (5) is provided with multiple unit frames, and biomass filler (4) is filled in each unit frame. The biomass filler (4) is 1m wide, 1.5m long and 2cm thick, and is curtain-shaped. The biomass filler (4) is fixed to the side of the isolation belt fixing frame (5) through the connecting through hole (2) of the thick steel wire (9).

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