A mining wastewater treatment equipment

Abstract

The utility model discloses a mining wastewater treatment equipment, including a first treatment pool, a second treatment pool, a third treatment pool and a filter pool which are arranged in sequence, the first treatment pool and the second treatment pool are both connected with an acid solution adding cartridge and an alkali solution adding cartridge, the third treatment pool is connected with a flocculant adding cartridge, the filter pool includes a plurality of filter areas which are connected in sequence, a solid separation device is arranged in the filter area, a filter device is arranged between two adjacent filter areas, and the filter device includes a filter component which can be replaced without stopping the machine and an installation component for installing the filter component. The mining wastewater treatment equipment of the utility model is provided with a filter component which can be replaced without stopping the machine, so that the filter component can be replaced during the filtering operation, the filter component blockage rate can be reduced, and the filtering efficiency can be improved. Moreover, the filter component which can be replaced without stopping the machine can ensure that when the filter component is filtering, the impurities in the sewage in the adjacent filter areas will not be mixed, so as to ensure the normal filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a mining sewage treatment device. Background Art

[0002] Mine wastewater and sewage are the general terms for natural dissolved water in mines, mineral processing wastewater, overflow water of mineral processing waste slag weirs, and leaching water from slag storage yards. Mine sewage mainly consists of surface infiltration water, rock pore water, mine pit water, drainage water from underground aquifers, and underground production dust prevention, grouting, and filling sewage. Mineral processing plant and coal washing plant sewage are the main sources of mine wastewater and sewage. Usually, the pH value of mine water is between 7 and 8, which is weakly alkaline, but sulfur-containing mine water is mostly acidic water, so the quality of mine sewage is extremely unstable and needs to be treated. In the prior art, the treatment of mine wastewater and sewage generally adopts conditioning, flocculation and filtration. Since mine wastewater and sewage contain a high solid content, the filter elements are easily blocked during the filtration process, and frequent shutdowns are required to replace the filter elements, which greatly reduces the filtration efficiency and increases the treatment cost of mine wastewater and sewage. In addition, when the filter elements are replaced, it is easy to cause the sewage in adjacent filter areas to mix, and the impurities in the sewage in adjacent filter areas to mix, affecting the normal filtration operation. Utility Model Content

[0003] In order to overcome at least one of the defects described in the above-mentioned prior art, the utility model provides a mining wastewater treatment equipment, which is provided with a filter component that can be replaced without stopping the machine, so that the filter component can be replaced during the filtering operation, thereby reducing the blockage rate of the filter component and improving the filtering efficiency. Moreover, the filter component that can be replaced without stopping the machine can ensure that when the filter component is filtering, impurities in the sewage in adjacent filtering areas will not be mixed, thereby ensuring normal filtration.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A mining wastewater treatment device comprises a first treatment tank, a second treatment tank, a third treatment tank and a filter tank which are arranged in sequence, wherein the first treatment tank and the second treatment tank are connected with an acid dosing cartridge and an alkali dosing cartridge, and the third treatment tank is connected with a flocculant dosing cartridge, the filter tank comprises a plurality of filter areas which are connected in sequence, a solid separation device is arranged in the filter area, a filter device is arranged between two adjacent filter areas, and the filter device comprises a filter component which can be replaced without stopping the machine and an installation component for installing the filter component.

[0006] Preferably, the filtration area includes a pool bottom and at least one outwardly inclined pool wall, and the solid separation device is transported outwardly by the inclined pool wall at a transport speed of 1 m / min-10 m / min;

[0007] The solid separation device comprises a separation conveying assembly, which comprises a material receiving section and an output section, and conveys from the material receiving section to the output section; the material receiving section is placed at the bottom of the pool, and the output section is placed on the inclined pool wall and conveys outwards.

[0008] Preferably, the separation conveying assembly comprises a conveying belt, and the width of the conveying belt is adapted to the width of the inclined pool wall.

[0009] Preferably, the conveying surface of the conveyor belt is an inner concave surface; a limiting component is arranged on the conveying surface of the conveyor belt, and the limiting component includes a limiting strip, and along the conveying direction of the conveying surface of the conveyor belt, the limiting strip has a front end and two ends, and the two ends are respectively located on both sides of the front end and are both located behind the front end.

[0010] Preferably, along the filtered water flow direction, the mounting assembly and the filtering assembly are arranged between two adjacent solid separation devices, and the filtering assembly is detachably mounted on the mounting assembly;

[0011] Along the direction of filtered water flow, the installation component includes an installation area, and the installation area has a front side and a rear side; the front side is provided with a positioning component, and when the filter component is filtering, the positioning component keeps the filter component at the rear side position.

[0012] Preferably, the filter assembly comprises at least a first filter element and a second filter element which are replaceable with each other, and the second filter element replaces the first filter assembly when the first filter element is at least partially clogged;

[0013] During replacement, the second filter element presses the positioning assembly and is inserted into the installation area from the front side; after the first filter element is taken out, the positioning assembly presses the second filter element to the rear side position.

[0014] Preferably, installation components are provided on the pool bottom and pool wall of the filtration area, and the installation components include a fixed block, and a limiting groove is provided on the surface of the fixed block, and the limiting groove forms the installation area; along the filtered water flow direction, the front side and the rear side of the limiting groove respectively form the front side and the rear side, and the positioning component is installed on the front side.

[0015] Preferably, the positioning assembly includes a positioning hole arranged on the front side, and the axial direction of the positioning hole is parallel to the direction of filtered water flow; an elastic member is arranged in the positioning hole, and a positioning block is fixedly connected to the orifice end of the elastic member facing the positioning hole; the positioning block is arranged to be conical, and the outer diameter of the end fixed with the elastic member is larger than the outer diameter of the other end; the outer end of the positioning block presses against the filter assembly.

[0016] Preferably, the first filter element and the second filter element are both planar filter nets, and the mesh openings of the first filter element and the second filter element are adapted to each other.

[0017] Preferably, there is a sewage pool in front of the first treatment pool, a drainage pipe is arranged in the sewage pool, the drainage pipe is connected to the first treatment pool, the drainage pipe is placed at the inner end of the sewage pool and connected to two sewage pumps, and the inlet of the sewage pump is provided with a grille box.

[0018] In summary, the mining wastewater treatment equipment provided by the utility model has the following technical effects:

[0019] 1. The filter device includes a filter component that can be replaced without stopping the machine, so that the filter component can be replaced without stopping the machine and the filtering efficiency is ensured.

[0020] 2. The filter components can be replaced without stopping the machine, which increases the replacement frequency of the filter components, avoids blockage of the filter components or large-scale blockage, ensures the filtration efficiency and reduces the filtration cost.

[0021] 3. The filter components can be replaced without stopping the machine, and during the replacement, impurities in the sewage in adjacent filter areas will not be mixed, ensuring the normal filtering operation.

[0022] 4. The filter device formed by the filter assembly and the installation assembly is easy and quick to replace.

[0023] 5. The solid separation device has a simple structure and high separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a mining wastewater treatment equipment in this scheme.

[0025] Figure 2 A cross-sectional view of an embodiment of a filter tank.

[0026] Figure 3 A schematic diagram of an installation embodiment of a filter assembly.

[0027] Figure 4 Schematic diagram of the conveying surface structure of the conveyor belt.

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Sewage pool; 2. First treatment pool; 3. Second treatment pool; 4. Third treatment pool; 5. Acid dosing cartridge; 6. Alkali dosing cartridge; 7. Flocculant dosing cartridge; 8. Filter pool; 80. Filter area; 81. Inclined pool wall; 82. Pool bottom; 83. Separation and conveying assembly; 830. Conveying surface; 831. Roller; 832. Limiting member; 84. Filter assembly; 841. First filter element; 842. Second filter element; 85. Mounting assembly; 86. Fixing block; 861. Limiting groove; 87. Positioning assembly; 871. Positioning hole; 872. Elastic member; 873. Positioning stopper. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] See also Figure 1 The utility model discloses a mining wastewater treatment device.

[0034] A mining wastewater treatment device comprises a first treatment tank 2, a second treatment tank 3, a third treatment tank 4 and a filter tank 8 which are arranged in sequence. The first treatment tank 2 and the second treatment tank 3 are both connected with an acid solution adding cartridge 5 and an alkali solution adding cartridge 6, and the third treatment tank 4 is connected with a flocculant adding cartridge 7. The filter tank 8 comprises a plurality of filter areas 80 which are connected in sequence, a solid separation device is arranged in the filter area 80, and a filter device is arranged between two adjacent filter areas 80. The filter device comprises a filter assembly 84 which can be replaced without stopping the machine and an installation assembly 85 for installing the filter assembly 84.

[0035] The utility model discloses a mining wastewater treatment device, which is used for purifying and separating the wastewater or part of the wastewater generated in mining to obtain clean water that can be reused, such as for ore dressing, ore washing and the like.

[0036] Based on the above scheme, the first treatment tank 2 and the second treatment tank 3 are both connected with an acid adding cartridge 5 and an alkali adding cartridge 6, and the first treatment tank and the second treatment tank are connected in sequence, so that after the sewage first enters the first treatment tank, acid or alkali can be added to the first treatment tank according to the pH of the sewage, and appropriate conditioning agents can be added according to different sewage water qualities, which has strong adaptability, solves the problem of fixed sewage treatment mode in the prior art, and conditions and treats according to the sewage water quality, improves sewage treatment efficiency, improves the treatment capacity in sewage treatment, and accelerates the rapid and accurate removal of alkaline or acidic substances in sewage. The sewage treated in the first treatment tank enters the second treatment tank, and acid or alkali is added to the second treatment tank through the acid adding cartridge 5 or the alkali adding cartridge 6 to condition the sewage to neutrality, which is convenient for the subsequent reuse of the purified sewage, and the solid matter separated from the sewage is recycled and reused, saving energy.

[0037] The acid liquid adding cartridge 5 stores acidic liquid or acidic agent, and the acidic liquid or acidic agent generally used mainly includes industrial hydrochloric acid, industrial sulfuric acid, industrial phosphoric acid, aluminum sulfate, ferrous sulfate, etc. The addition of acid liquid not only adjusts the pH of sewage, but also removes heavy metal ions in sewage, reduces heavy metal precipitation, reduces heavy metal pollution, improves sewage quality, and reduces the content of heavy metals in solid matter separated from sewage as much as possible, so as to facilitate the subsequent reuse of sewage and solid matter separated from sewage.

[0038] The alkali liquid adding cartridge 6 stores an alkaline liquid, and the alkaline liquid generally used includes calcium hydroxide, sodium hydroxide, ammonia water, and the like.

[0039] Based on the above technical solution, the third treatment tank 4 is connected with a flocculant adding cartridge 7, and flocculants are added into the third treatment tank to make the particulate matter in the sewage flocculate, clump and precipitate, thereby improving and purifying the water quality. Common flocculants include polyaluminium chloride, polyaluminium chloride iron, alum, ferric chloride and the like.

[0040] In this solution, the acid dosing cartridge 5, the alkali dosing cartridge 6, the flocculant dosing cartridge 7 and the first treatment tank 2, the second treatment tank 3, and the third treatment tank 4 are all controlled by electromagnetic valves (not shown in the figure) and liquid pumps (not shown in the figure), and the operation is simple and fast.

[0041] In order to improve the sewage treatment efficiency, the first treatment tank 2, the second treatment tank 3, the third treatment tank 4 and the filter tank 8 can be provided in multiple groups.

[0042] Based on the above scheme, the filter pool 8 includes a plurality of filter areas 80 connected in sequence, and a filter device is provided between two adjacent filter areas 80 to achieve multi-stage filtration of solid impurities in sewage, improve filtration efficiency, reduce the probability of clogging of the filter device, and reduce the replacement or maintenance cost of the filter device. In addition, because the solid impurities in mining sewage are mainly dust, slag, etc., multi-stage graded filtration is performed on the solid matter in the sewage to achieve graded recovery of solid impurities, which is conducive to the reuse and specific treatment of the recovered solid matter.

[0043] Based on the above scheme, the filtering device includes a filter component 84 that can be replaced without stopping the machine. The filter component can be replaced without stopping the machine, that is, the filtering work can be carried out normally during the replacement of the filter component, and the sewage flow does not need to be cut off. In addition, during the replacement of the filter component, the problem of impurities mixing in the sewage in the adjacent filter area will not be caused, thereby ensuring the filtering efficiency and filtering rate. The filter component can be replaced without stopping the machine, which is convenient to replace. It can also increase the replacement frequency of the filter component, avoid clogging of the filter component or large-area clogging, ensure the filtering efficiency, and reduce the filtering cost.

[0044] See also Figure 1 and Figure 2 The filtration area 80 includes a pool bottom 82 and at least one outwardly inclined pool wall 81, and the solid separation device is transported outward by the inclined pool wall 81. The solid separation device transports upwardly and transports the solid matter received and collected at the pool bottom outward, thereby separating and treating the solid matter in the sewage, and the separation operation is simple and fast.

[0045] The solid separation device is transported outward from the inclined pool wall 81, and the transport speed is 1m / min-10m / min. The solid separation device is transported at a low speed, which is convenient for separating and taking out the solid matter that has settled on the transport device from the sewage. The transport speed is selected to be 1m / min-10m / min, so that the transport device is in a low-speed transport state, so as to avoid the solid matter that has settled on the transport device from generating a large convection with the sewage due to the rapid movement of the transport device, and to avoid the solid matter that has settled on the transport device from being dispersed into the sewage again. Therefore, the transport device is selected to be transported at a low speed, so that the solid matter that has settled on the transport device can be separated from the sewage and transported outward with the transport device, thereby improving the separation efficiency of the solid matter in the sewage and accelerating the rapid output of the solid matter separated from the sewage from the sewage.

[0046] See also Figure 1 and Figure 2In this solution, the solid separation device includes a separation conveying assembly 83. The separation conveying assembly 83 includes a receiving section and an output section, and the receiving section is used for conveying to the output section. The receiving section is placed on the bottom of the pool 82, and the output section is placed on the inclined pool wall 81 and conveys outward. The receiving section is placed on the bottom of the pool, generally in a horizontal or substantially horizontal shape, so as to receive the solid matter precipitated downward in the sewage, and then convey it from the receiving section to the output section, and convey the solid settled on the receiving section out of the sewage.

[0047] In this solution, the setting of the inclined pool wall 81, on the one hand, facilitates the output section of the separation and conveying assembly to be set to an inclined upward shape, so that the solids settled on the separation and conveying assembly can be discharged from the sewage. In addition, the setting of the inclined pool wall also makes the output section of the separation and conveying assembly basically close to the inclined pool wall, so that the separation and conveying assembly can basically receive the solid matter in the sewage in the filtration area, avoid too much sewage being located at the bottom of the separation and conveying assembly, avoid too much solid matter in the sewage settling between the separation and conveying assembly and the bottom wall, so that the solid matter at the bottom of the separation area is accumulated and difficult to be discharged, or the operator needs to manually carry it out or use other equipment to discharge it, reduce the work intensity, improve the separation rate, and avoid a large amount of solid matter settling at the bottom of the filtration area.

[0048] In this solution, in order to reduce the structure of the separation and conveying assembly, the separation and conveying assembly 83 includes a conveyor belt, which has a simple structure, strong adaptability, wear resistance and corrosion resistance, low cost, and is convenient for receiving and conveying solid materials of different particle sizes.

[0049] In this solution, the width of the conveyor belt is adapted to the width of the inclined pool wall 81, so as to maximize the reception of solid matter settling downward in the sewage and improve the separation efficiency and separation rate of the solid matter in the sewage.

[0050] Of course, the separation and conveying component 83 can also be a conveyor belt. The mesh size on the conveyor belt is designed according to the particle size of the solid matter separated in this separation zone, and is smaller than the particle size of the solid matter separated in this separation zone, so as to receive the solid matter settled in the sewage.

[0051] See also Figure 4 In this solution, the conveying surface 830 of the conveyor belt is an inner concave surface. The conveying surface adopts an inner concave surface design to ensure that more solid matter settled on the conveyor belt can be retained on the conveyor belt and transported outward by the conveyor belt, thereby improving the separation efficiency of solid matter settled in sewage from sewage.

[0052] In this solution, a limiting member 832 is provided on the conveying surface 830 of the conveyor belt. The setting of the limiting member increases the friction force on the conveying surface of the conveyor belt, ensures that the solid materials on the inclined upward conveyor belt can be conveyed downward with the conveyor belt, and avoids the problem of the solid materials on the inclined output section of the conveyor belt sliding downward. The limiting member 832 includes a limiting bar, which has a simple structure and is integrally formed with the conveyor belt, and has low cost.

[0053] Along the conveying direction of the conveying surface 830 of the conveyor belt, the limit strip has a front end and two ends, and the two ends are respectively located on both sides of the front end and are both located at the rear of the front end, that is, the setting direction of the limit strip is consistent with the water flow direction on the conveyor belt, which effectively avoids the water blocking effect of the limit strip and avoids the conveyor belt from storing more water. The limit strip has a front end and two ends, and the two ends are respectively located on both sides of the front end and are both located at the rear of the front end, so that when the conveyor belt leaves the sewage surface, the sewage in the solid matter on the conveyor belt can flow back downward along the two ends of the limit strip to the filtration area, further ensuring the separation of solids and sewage, and reducing the water content of solid matter transported from the sewage.

[0054] When the conveyor belt is installed, the motor is installed to drive the active roller, and the conveyor belt drives the roller 831 installed at the bottom of the pool in the filter area to rotate through the conveyor belt to realize the conveying of the conveyor belt. In order to reduce the installation requirements, the motor is installed outside the filter pool. In order to ensure that the conveyor belt maintains a horizontal or substantially horizontal material receiving section and an inclined upward output section, a rotating pressure wheel is used to press the conveyor belt at the connection position of the material receiving section and the output section. The rotating pressure wheel is set at the connection position of the material receiving section and the output section and is located on the conveying surface.

[0055] See also Figure 2 and Figure 3 In this solution, along the direction of filtered water flow, the mounting assembly 85 and the filtering assembly 84 are arranged between two adjacent filtering areas, and are arranged between two adjacent solid separation devices, so that the solid matter separated by the filtering assembly in the sewage can be completely or substantially completely settled on the solid separation device, thereby maximizing the solid separation device's ability to receive solid matter.

[0056] The filter assembly 84 can be detachably mounted on the mounting assembly 85, so as to facilitate the installation, removal and replacement of the filter assembly.

[0057] See also Figure 3, along the direction of filtered water flow, the mounting assembly 85 includes a mounting area, and the mounting area has a front side and a rear side. A positioning assembly 87 is provided on the front side, and when the filter assembly 84 is filtering, the positioning assembly 87 keeps the filter assembly 84 at the rear side. It is ensured that the solid matter intercepted by the filter assembly can be received by the solid separation device in the previous filter area to the maximum extent, and the problem of solid matter with larger particle size in the previous filter area entering the next filter area when the filter assembly is replaced is avoided, and the mixing of solid matter in adjacent filter areas is avoided.

[0058] See also Figure 3 The filter assembly 84 includes at least a first filter element 841 and a second filter element 842 which can be replaced with each other. The second filter element 842 replaces the first filter assembly 84 when the first filter element 841 is at least partially clogged. During replacement, the second filter element 842 presses the positioning assembly 87 and is inserted into the installation area from the front side; after the first filter element 841 is taken out, the positioning assembly 87 presses the second filter element 842 to the rear side.

[0059] The first filter element is positioned by the point assembly 87 so that the first filter element is kept at the front side of the mounting assembly 85 during normal filtration. That is, along the filtered water flow direction, the first filter element is kept at the side of the mounting assembly close to the previous filter area during normal filtration. In this way, the first filter element can intercept the solid matter in the sewage in the previous filter area and maximize the sedimentation of the solid matter in the sewage on the separation and conveying assembly 83 in the previous filter area.

[0060] When the first filter element is replaced by the second filter element, the second filter element is installed from the rear side of the installation component, and then the first filter element is pulled out. At this time, the second filter element will automatically move closer to the front side of the installation component under the action of the positioning component. In the process of replacing the first filter element with the second filter element, the filter component always maintains a good and complete filtering operation, effectively avoiding the problem of mixing of solid matter in sewage in two adjacent filter areas during the replacement of the filter component, especially avoiding the problem of solid matter in the previous filter area with a particle size larger than the filter component entering the next filter area.

[0061] See also Figure 3 The bottom 82 and the wall of the filter area 80 are both provided with mounting components 85, which are used to mount and fix the filter assembly. The mounting component 85 includes a fixing block 86, and a limiting groove 861 is provided on the surface of the fixing block 86, and the limiting groove 861 forms a mounting area. Along the direction of the filtered water flow, the front side and the rear side of the limiting groove 861 form the front side and the rear side, respectively, and the positioning component 87 is installed on the front side.

[0062] The limiting groove 861 is adapted to the sum of the thicknesses of the first filter element and the second filter element, and is used to install both the first filter element and the second filter element when the second filter element replaces the first filter element. In order to improve the installation stability of the first filter element and the second filter element, fixed blocks are installed on the pool bottom, the inclined pool wall, and the pool wall opposite to the inclined pool wall for installing the first filter element and the second filter element. In order to adapt the depth of the limiting groove to the thickness of the fixed block, the fixed block includes two blocks arranged opposite to each other, and a limiting groove is formed between the two fixed blocks. Furthermore, a top fixed block can also be set at the pool mouth position to limit the top of the first filter element and the second filter element to ensure that the first filter element or the second filter element is stable during filtering.

[0063] See also Figure 3 The positioning assembly 87 includes a positioning hole 871 arranged on the front side, and the axial direction of the positioning hole 871 is parallel to the direction of the filtered water flow. An elastic member 872 is arranged in the positioning hole 871, and a positioning block 873 is fixedly connected to the orifice end of the elastic member 872 facing the positioning hole 871. The positioning block 873 is set to be conical, and the outer diameter of the end fixed with the elastic member 872 is larger than the outer diameter of the other end. The outer end of the positioning block 873 rests on the filter assembly 84. The elastic member pushes the positioning block to push the filter assembly in the installation area to the front side of the installation area. When the second filter element is installed into the installation area, the second filter element presses the positioning block, and the positioning block squeezes the elastic member, and the positioning block shrinks into the positioning hole, which is convenient for the installation of the second filter element. The positioning block 873 is set to be conical, which is convenient for the positioning block to shrink inward when the second filter element is installed. The elastic member can be a coil spring or an elastic rubber column.

[0064] In this solution, the first filter element 841 and the second filter element 842 are both plane filter nets, and the meshes of the first filter element 841 and the second filter element 842 are adapted to each other. In a filter assembly, the mesh apertures of the first filter element and the second filter element are adapted to each other, and are designed according to the particle size of solid matter in the sewage to be intercepted or filtered at the installation location. The first filter element 841 and the second filter element 842 use filter nets made of metal or plastic, which are low in cost and have anti-corrosion capabilities.

[0065] In this scheme, there is a sewage pool 1 in front of the first treatment pool 2, and a drainage pipe is arranged in the sewage pool 1, which is connected to the first treatment pool 2. The drainage pipe is placed at the inner end of the sewage pool 1 and connected to two sewage pumps, and a grid box is arranged at the inlet of the sewage pump. The grid box is arranged to filter large impurities in the sewage pool, to prevent large impurities from entering the sewage pump, damaging the sewage pump, affecting the normal operation of the sewage pump, reducing the cost of repair and maintenance, and ensuring the normal operation and work of the mining sewage treatment equipment of this mine.

[0066] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A mining wastewater treatment equipment, characterized in that: It includes a first treatment tank, a second treatment tank, a third treatment tank and a filter tank which are arranged in sequence. The first treatment tank and the second treatment tank are connected to an acid dosing cartridge and an alkali dosing cartridge, and the third treatment tank is connected to a flocculant dosing cartridge. The filter tank includes a plurality of filter areas which are connected in sequence. A solid separation device is arranged in the filter area. A filter device is arranged between two adjacent filter areas. The filter device includes a filter component which can be replaced without stopping the machine and an installation component for installing the filter component.

2. The mining wastewater treatment equipment according to claim 1 is characterized in that: The filtration area includes a pool bottom and at least one outwardly inclined pool wall, and the solid separation device is transported outwardly by the inclined pool wall at a transport speed of 1m / min-10m / min; The solid separation device comprises a separation conveying assembly, which comprises a material receiving section and an output section, and conveys from the material receiving section to the output section; the material receiving section is placed at the bottom of the pool, and the output section is placed on the inclined pool wall and conveys outwards.

3. The mining wastewater treatment equipment according to claim 2 is characterized in that: The separation conveying assembly comprises a conveying belt, and the width of the conveying belt is adapted to the width of the inclined pool wall.

4. The mining wastewater treatment equipment according to claim 3 is characterized in that: The conveying surface of the conveyor belt is an inner concave surface; a limiting component is arranged on the conveying surface of the conveyor belt, and the limiting component includes a limiting strip. Along the conveying direction of the conveying surface of the conveyor belt, the limiting strip has a front end and two ends, and the two ends are respectively located on both sides of the front end and are both located behind the front end.

5. The mining wastewater treatment equipment according to claim 1 is characterized in that: Along the filtered water flow direction, the mounting assembly and the filtering assembly are arranged between two adjacent solid separation devices, and the filtering assembly is detachably mounted on the mounting assembly; Along the direction of filtered water flow, the installation component includes an installation area, and the installation area has a front side and a rear side; the front side is provided with a positioning component, and when the filter component is filtering, the positioning component keeps the filter component at the rear side position.

6. The mining wastewater treatment equipment according to claim 5, characterized in that: The filter assembly comprises at least a first filter element and a second filter element which are replaceable with each other, wherein the second filter element replaces the first filter assembly when the first filter element is at least partially clogged; During replacement, the second filter element presses the positioning assembly and is inserted into the installation area from the front side; after the first filter element is taken out, the positioning assembly presses the second filter element to the rear side position.

7. The mining wastewater treatment equipment according to claim 5 or 6, characterized in that: The pool bottom and the pool wall of the filtration area are both provided with installation components, and the installation components include a fixed block, and a limiting groove is provided on the surface of the fixed block, and the limiting groove forms the installation area; along the direction of filtered water flow, the front side and the rear side of the limiting groove respectively form the front side and the rear side, and the positioning component is installed on the front side.

8. The mining wastewater treatment equipment according to claim 7, characterized in that: The positioning assembly includes a positioning hole arranged on the front side, and the axial direction of the positioning hole is parallel to the direction of filtered water flow; an elastic member is arranged in the positioning hole, and a positioning block is fixedly connected to the hole end of the elastic member facing the opening of the positioning hole; the positioning block is configured to be conical, and the outer diameter of the end fixed to the elastic member is larger than the outer diameter of the other end; the outer end of the positioning block presses against the filter assembly.

9. The mining wastewater treatment equipment according to claim 6, characterized in that: The first filter element and the second filter element are both planar filter nets, and the meshes of the first filter element and the second filter element are adapted to each other.

10. The mining wastewater treatment equipment according to claim 1, characterized in that: There is a sewage pool in front of the first treatment pool. A drainage pipe is arranged in the sewage pool. The drainage pipe is connected to the first treatment pool. The drainage pipe is placed at the inner end of the sewage pool and connected to two sewage pumps. A grill box is arranged at the inlet of the sewage pump.

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