Integrated treatment device for iron-manganese tail water of mine

Abstract

The utility model discloses an integrated treatment device for mine ferro-manganese tail water, which comprises an aeration tank, a flocculation sedimentation tank, a multi-medium adsorption filter, an aeration component, a stirring component and a dosing component, a water inlet of the aeration tank is communicated with an external water inlet pipe, a water inlet of the flocculation sedimentation tank is communicated with a water outlet of the aeration tank, and a water outlet of the multi-medium adsorption filter is communicated with a water outlet of the multi-medium adsorption filter. A water inlet of the multi-medium adsorption filter is communicated with a water outlet of the flocculation sedimentation tank, and a water outlet of the multi-medium adsorption filter is communicated with an external water outlet pipe. According to the utility model, through the combination of the aeration tank, the flocculation sedimentation tank and the multi-medium adsorption filter, multi-stage and comprehensive treatment is realized, heavy metal ions such as iron and manganese and suspended particles in tail water are effectively removed, and the tail water purification effect is improved. Due to the combined design of the aeration assembly and the stirring assembly, the gas utilization rate is increased, and the energy consumption is reduced. Meanwhile, the device is compact in overall structure, small in occupied area and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tail water treatment, in particular to an integrated treatment device for mine iron and manganese tail water. Background Art

[0002] Iron and manganese mine tail water refers to wastewater containing metal ions such as iron and manganese generated during mining and smelting. The main characteristics of iron and manganese mine tail water are high concentrations of iron and manganese ions, as well as other heavy metals and harmful substances that may exist. The high concentrations of these metal ions and harmful substances make iron and manganese mine tail water have a certain potential to harm the ecological environment and water quality.

[0003] The existing treatment of iron and manganese tail water in mines usually adopts manganese sand filter, that is, firstly, the dissolved divalent iron or divalent manganese is oxidized into insoluble trivalent iron or tetravalent manganese compounds under the action of catalyst (such as manganese sand), and then the backwashing function of manganese sand filter is used to remove and purify. However, due to the high concentration of iron and manganese in mine tail water, the effect of using manganese sand filter alone to treat mine tail water is poor. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated treatment device for mine iron and manganese tail water to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides an integrated treatment device for mine iron and manganese tail water, which includes an aeration tank, a flocculation sedimentation tank, a multi-media adsorption filter, an aeration component, a stirring component and a dosing component. The water inlet of the aeration tank is connected to an external water inlet pipe, the water inlet of the flocculation sedimentation tank is connected to the water outlet of the aeration tank, the water inlet of the multi-media adsorption filter is connected to the water outlet of the flocculation sedimentation tank, the water outlet of the multi-media adsorption filter is connected to the external water outlet pipe, the aeration component is used to introduce gas into the aeration tank, the stirring component is used to mix the tail water and gas in the aeration tank evenly, and the dosing component is used to add flocculant to the flocculation sedimentation tank.

[0006] Furthermore, the stirring assembly includes a rotating shaft, stirring blades and a motor. The rotating shaft is longitudinally arranged in the aeration tank. There are multiple stirring blades, which are evenly distributed on the rotating shaft and fixedly connected to the rotating shaft. The motor is used to drive the rotating shaft to rotate.

[0007] Furthermore, the aeration assembly includes a bellows, an aeration pipe system and an aeration fan. The bellows is fixedly installed at the bottom of the aeration tank. A plurality of air holes are opened on the bellows. The aeration pipe system is arranged at the bottom of the aeration tank. The aeration fan is respectively connected to the bellows and the aeration pipe system through air ducts.

[0008] Furthermore, a cavity is formed inside the rotating shaft, and a plurality of air outlet holes are opened on the rotating shaft. The rotating shaft is communicated with the air outlet of the bellows and is rotatably connected to the bellows.

[0009] Furthermore, the dosing assembly includes a dosing tank and a dosing pipe, the dosing tank is arranged on one side of the flocculation sedimentation tank, and both ends of the dosing pipe are connected to the flocculation sedimentation tank and the dosing tank.

[0010] Furthermore, the multi-media adsorption filter is arranged in the longitudinal direction, and its water inlet and water outlet are respectively located at the top and bottom of the multi-media adsorption filter, and the multi-media adsorption filter and the flocculation sedimentation tank are connected through a lifting pump.

[0011] Furthermore, a ball valve and a check valve are provided between the lift pump and the multi-media adsorption filter.

[0012] Furthermore, the aeration tank adopts intermittent aeration.

[0013] The beneficial effects of the utility model are as follows: the utility model realizes multi-stage and comprehensive treatment through the combination of an aeration tank, a flocculation sedimentation tank and a multi-media adsorption filter, effectively removes heavy metal ions such as iron and manganese and suspended particles in the tail water, and improves the tail water purification effect. The combined design of the aeration component and the stirring component improves the utilization rate of the gas and reduces energy consumption. At the same time, the overall structure of the device is compact, occupies a small area, and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the local structure of an embodiment of the utility model.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA.

[0017] Figure 4 It is a schematic diagram of the process of an embodiment of the utility model.

[0018] Among them: 1. Aeration tank; 2. Flocculation sedimentation tank; 3. Multi-media adsorption filter; 4. Aeration component; 5. Stirring component; 6. Dosing component; 7. External water inlet pipe; 8. External water outlet pipe; 9. Lifting pump; 10. Ball valve; 11. Check valve.

[0019] 41. Bellows; 42. Aeration pipe system; 43. Aeration fan; 51. Rotating shaft; 52. Mixing blades; 53. Motor; 61. Dosing tank; 62. Dosage pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiment is only one embodiment of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0021] In order to make the objectives, technical solutions and advantages of the present application more clear, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] In the following description, references to "one embodiment", "an embodiment", "an example", "an example", etc. indicate that the embodiment or example described in this way may include specific features, structures, characteristics, properties, elements or limitations, but not every embodiment or example necessarily includes the specific features, structures, characteristics, properties, elements or limitations. In addition, repeated use of the phrase "according to one embodiment of the present application" may refer to the same embodiment, but does not necessarily refer to the same embodiment.

[0023] like Figure 1-3 As shown, the utility model discloses an integrated treatment device for iron and manganese tail water in mines, which includes an aeration tank 1, a flocculation sedimentation tank 2, a multi-media adsorption filter 3, an aeration component 4, a stirring component 5 and a dosing component 6. In an embodiment, the above components can be integrated into a treatment box. The water inlet of the aeration tank 1 is connected to the external water inlet pipe 7, the water inlet of the flocculation sedimentation tank 2 is connected to the water outlet of the aeration tank 1, the water inlet of the multi-media adsorption filter 3 is connected to the water outlet of the flocculation sedimentation tank 2, and the water outlet of the multi-media adsorption filter 3 is connected to the external water outlet pipe 8. The aeration component 4 is used to introduce gas into the aeration tank 1, the stirring component 5 is used to mix the tail water and gas in the aeration tank 1 evenly, and the dosing component 6 is used to add flocculant to the flocculation sedimentation tank 2.

[0024] The tail water of the mine enters the aeration tank 1 through the external water inlet pipe 7. The aeration component 4 starts to introduce gas into the aeration tank 1, generating tiny dissolved gas to contact and oxidize the iron and manganese in the tail water. At the same time, the stirring component 5 mixes the tail water and gas more evenly, which can better oxidize the divalent iron / divalent manganese into trivalent iron / quadrivalent manganese insolubles. The supernatant in the aeration tank 1 enters the flocculation sedimentation tank 2, and the flocculant is added to the flocculation sedimentation tank 2 through the dosing component 6. The flocculant combines with suspended matter and pollutants to form floccules, and gradually settles to the bottom, thereby achieving preliminary solid-liquid separation. The supernatant in the flocculation sedimentation tank 2 enters the multi-media adsorption filter 3. In the multi-media adsorption filter 3, the tail water is subjected to the action of a variety of filter media, such as activated carbon, sand and gravel, etc. These media can adsorb and absorb harmful substances, improve the purification effect of water quality, and further remove suspended matter, heavy metals and organic pollutants. The treated tail water is connected to the external outlet pipe 8 through the outlet of the multi-media adsorption filter 3 for further treatment or discharge.

[0025] In one embodiment, the stirring assembly 5 includes a rotating shaft 51, stirring blades 52 and a motor 53. The rotating shaft 51 is longitudinally arranged in the aeration tank 1. There are multiple stirring blades 52, which are evenly distributed on the rotating shaft 51 and fixedly connected to the rotating shaft 51.

[0026] Driven by the motor 53, the rotating shaft 51 in the stirring assembly 5 starts to rotate, driving the stirring blades 52 on the rotating shaft 51 to rotate together. These stirring blades 52 continuously stir in the aeration tank 1, mixing the tail water and the gas more evenly, which is beneficial for each tail water to fully contact the gas, thereby improving the aeration effect.

[0027] In one embodiment, the aeration assembly 4 includes a bellows 41, an aeration pipe system 42 and an aeration fan 43. The bellows 41 is fixedly installed at the bottom of the aeration tank 1. A plurality of air holes are opened on the bellows 41. The aeration pipe system 42 is arranged at the bottom of the aeration tank 1. The aeration fan 43 is respectively connected to the bellows 41 and the aeration pipe system 42 through air ducts.

[0028] The aeration fan 43 is started, and the gas enters the aeration tank 1 from the wind box 41 through the aeration pipe system 42 and is evenly distributed into the water body through a plurality of air holes and the aeration pipe system 42 .

[0029] In one embodiment, a cavity is formed inside the rotating shaft 51, and a plurality of air outlet holes are opened on the rotating shaft 51. The rotating shaft 51 is connected to the air outlet of the bellows 41 and is rotatably connected to the bellows 41. When the motor 53 drives the rotating shaft 51 to rotate, the gas in the bellows 41 can be further evenly distributed to the aeration tank 1 through the air outlet holes on the rotating shaft 51, thereby further enhancing the aeration effect.

[0030] In one embodiment, the dosing assembly 6 includes a dosing tank 61 and a medicine pipe 62. The dosing tank 61 is arranged on one side of the flocculation sedimentation tank 2, and both ends of the medicine pipe 62 are connected to the flocculation sedimentation tank 2 and the dosing tank 61. In the embodiment, the flocculant in the dosing tank 61 can be PAC, and PAC is added to the flocculation sedimentation tank 2 through the pipeline mixer on the dosing tank 61 to increase the sedimentation of flocs in the water.

[0031] In one embodiment, the multi-media adsorption filter 3 is arranged in the longitudinal direction, and its water inlet and water outlet are respectively located at the top and bottom of the multi-media adsorption filter 3, and the multi-media adsorption filter 3 and the flocculation sedimentation tank 2 are connected through a lifting pump 9. In the embodiment, quartz sand and manganese sand can be used for adsorption in the multi-media adsorption filter 3.

[0032] The supernatant after flocculation and sedimentation is sent into the multi-media adsorption filter 3 by the lifting pump 9 , and the supernatant flows from top to bottom through the internal medium layer by gravity and then flows into the water outlet of the multi-media adsorption filter 3 .

[0033] In one embodiment, a ball valve 10 and a check valve 11 are also provided on the delivery pipeline between the lift pump 9 and the multi-media adsorption filter 3. The ball valve 10 and the check valve 11 play a role in controlling and regulating the water flow between the lift pump 9 and the multi-media adsorption filter 3. The ball valve 10 can adjust the on and off of the water flow as needed to achieve the control of the water flow. The check valve 11 prevents the treated water from flowing back to the previous treatment stage, thereby preventing pollutants from entering the treatment system again and affecting the treatment effect.

[0034] In one embodiment, the aeration tank 1 adopts intermittent aeration, which can save energy, improve the effect of the biochemical process, and reduce sludge generation and bubble accumulation.

[0035] The workflow of this embodiment is as follows:

[0036] The tail water of the mine enters the aeration tank 1 through the external water inlet pipe 7, and the aeration fan 43 is started. The gas enters the aeration tank 1 from the bellows 41 through the aeration pipe system 42, and is evenly distributed to the water body through multiple air holes and the aeration pipe system 42. At the same time, the gas enters the cavity in the rotating shaft 51 through the bellows 41, and is further evenly distributed to the aeration tank 1 through the air outlet holes on the rotating shaft 51, thereby improving the aeration effect. At the same time, the motor 53 is started, and the motor 53 drives the rotating shaft 51 to start rotating, driving the stirring blades 52 on the rotating shaft 51 to rotate together, so that the tail water and gas are mixed more evenly. The tiny dissolved gas in the aeration tank 1 is contacted and oxidized with the iron and manganese in the tail water, oxidizing the divalent iron / divalent manganese into trivalent iron / quadrivalent manganese insolubles.

[0037] The supernatant in the aeration tank 1 flows into the flocculation sedimentation tank 2 by gravity, and flocculants are added to the flocculation sedimentation tank 2 through the dosing tank 61 and the drug pipe 62. The flocculants combine with the suspended matter and pollutants to form flocs, which gradually settle to the bottom, thereby achieving preliminary solid-liquid separation.

[0038] The supernatant in the flocculation sedimentation tank 2 is sent into the multi-media adsorption filter 3 by the lifting pump 9. The supernatant flows from top to bottom through the internal medium layer by gravity and then flows into the outlet of the multi-media adsorption filter 3, and then enters the external outlet pipe 8 for the next step of treatment or discharge.

[0039] The utility model realizes multi-stage and comprehensive treatment through the combination of an aeration tank 1, a flocculation sedimentation tank 2 and a multi-media adsorption filter 3, effectively removes heavy metal ions such as iron and manganese and suspended particles in the tail water, and improves the tail water purification effect. The combined design of the aeration component 4 and the stirring component 5 improves the utilization rate of the gas and reduces energy consumption. At the same time, the overall structure of the device is compact, occupies a small area, and is easy to install and maintain.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated treatment device for iron and manganese tail water in mines, characterized by: The invention comprises an aeration tank, a flocculation sedimentation tank, a multi-media adsorption filter, an aeration component, a stirring component and a dosing component. The water inlet of the aeration tank is connected with an external water inlet pipe, the water inlet of the flocculation sedimentation tank is connected with the water outlet of the aeration tank, the water inlet of the multi-media adsorption filter is connected with the water outlet of the flocculation sedimentation tank, the water outlet of the multi-media adsorption filter is connected with an external water outlet pipe, the aeration component is used for introducing gas into the aeration tank, the stirring component is used for uniformly mixing tail water and gas in the aeration tank, and the dosing component is used for adding flocculant into the flocculation sedimentation tank.

2. The integrated treatment device for mine iron and manganese tail water according to claim 1 is characterized by: The stirring assembly includes a rotating shaft, stirring blades and a motor. The rotating shaft is arranged in the aeration tank along the longitudinal direction. There are multiple stirring blades, which are evenly distributed on the rotating shaft and fixedly connected to the rotating shaft. The motor is used to drive the rotating shaft to rotate.

3. The integrated treatment device for mine iron and manganese tail water according to claim 2 is characterized by: The aeration assembly includes a bellows, an aeration pipe system and an aeration fan. The bellows is fixedly installed at the bottom of the aeration tank. A plurality of air holes are opened on the bellows. The aeration pipe system is arranged at the bottom of the aeration tank. The aeration fan is respectively connected to the bellows and the aeration pipe system through air ducts.

4. The integrated treatment device for mine iron and manganese tail water according to claim 3 is characterized by: A cavity is formed inside the rotating shaft, and a plurality of air outlet holes are opened on the rotating shaft. The rotating shaft is communicated with the air outlet of the bellows and is rotatably connected with the bellows.

5. The integrated treatment device for mine iron and manganese tail water according to claim 1 is characterized by: The dosing assembly comprises a dosing tank and a dosing pipe. The dosing tank is arranged at one side of the flocculation sedimentation tank. Both ends of the dosing pipe are connected with the flocculation sedimentation tank and the dosing tank.

6. The integrated treatment device for mine iron and manganese tail water according to claim 1 is characterized by: The multi-media adsorption filter is arranged in the longitudinal direction, and its water inlet and water outlet are respectively located at the top and bottom of the multi-media adsorption filter. The multi-media adsorption filter is connected to the flocculation sedimentation tank through a lifting pump.

7. The integrated treatment device for mine iron and manganese tail water according to claim 6 is characterized by: A ball valve and a check valve are also provided between the lift pump and the multi-media adsorption filter.

8. The integrated treatment device for mine iron and manganese tail water according to claim 1 is characterized by: The aeration tank adopts intermittent aeration.

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