CN223409487U - Coal mine drainage water treatment system - Google Patents
Coal mine drainage water treatment systemInfo
- Publication number
- CN223409487U CN223409487U CN202422775988.0U CN202422775988U CN223409487U CN 223409487 U CN223409487 U CN 223409487U CN 202422775988 U CN202422775988 U CN 202422775988U CN 223409487 U CN223409487 U CN 223409487U
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- water
- tank
- sedimentation
- coal mine
- oil
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Abstract
本申请提供一种煤矿疏干水处理系统，通过设置平流沉淀池将疏干水进行除油和预沉淀处理，再将预处理后的疏干水与絮凝药剂在管道混合器中进行混合后输入到絮凝池中进行絮凝处理，得到浊度较低的上清液，再将絮凝后得到的上清液转入到过滤器中过滤，以进一步提升上清液的洁净度，并将过滤后的清水暂存于回用水池中，再通过第三水泵分配给用水设备进行利用。本申请的装置通过上述设备的配合使用将煤矿疏干水进行初步清洁后回收利用，有效地减少了水资源的浪费，同时还具有减少污染的有益效果。
The present application provides a coal mine drainage water treatment system, which removes oil and pre-precipitates the drainage water by setting up a horizontal flow sedimentation tank, then mixes the pre-treated drainage water with a flocculating agent in a pipeline mixer and inputs it into a flocculation tank for flocculation treatment to obtain a supernatant with low turbidity. The supernatant obtained after flocculation is then transferred to a filter for filtration to further improve the cleanliness of the supernatant, and the filtered clean water is temporarily stored in a reuse water tank and then distributed to water-using equipment for utilization through a third water pump. The device of the present application uses the above-mentioned equipment in conjunction with the above-mentioned equipment to perform preliminary cleaning of the coal mine drainage water and then recycle it, effectively reducing the waste of water resources and also having the beneficial effect of reducing pollution.
Description
Technical Field
The application relates to the technical field of wastewater treatment, in particular to a coal mine drainage water treatment system.
Background
The drainage water refers to wastewater containing various pollutants, which is flushed from a coal seam by underground water in the coal mining process. The components of the drainage water are affected by regional hydrology, geological characteristics and mining processes, are generally complex, contain a large amount of suspended matters such as sand, coal, grease and the like, contain partial dissolved matters such as salt, acid and the like, have large wastewater quantity and complex water quality, have large fluctuation of water quality and water quantity, and are directly discharged without treatment, so that not only can the waste of water resources be caused, but also the discharge of dirt in the wastewater can pollute the environment. Therefore, the drained water is necessary to be treated so as to avoid waste of resources and environmental pollution.
Disclosure of utility model
The application provides a coal mine drainage water treatment system which is used for solving the problems of water resource and environmental pollution caused by direct drainage of coal mine drainage water.
The application provides a coal mine drainage water treatment system, which comprises a pipeline mixer, a flocculation tank, an intermediate water tank, a filter, a reuse water tank and water equipment which are sequentially connected with a drainage water discharge pipeline in series;
A first water pump is arranged between the drain water discharge pipeline and the pipeline mixer;
a second water pump is arranged between the middle water tank and the filter;
a third water pump is arranged between the reuse water tank and the water using equipment;
the pipeline mixer is also connected with a dosing metering pump;
And a advection sedimentation tank is also arranged between the first water pump and the pipeline mixer.
Optionally, the recycling water pool is also connected with the ultrafiltration reverse osmosis system and the fresh water pool in sequence through a fourth water pump.
Optionally, the flocculation Chi Heping flow sedimentation tanks are all connected with the sludge tank;
the sludge tank is sequentially connected with the sludge concentration tank and the filter press, and the sludge tank, the sludge concentration tank and the filter press are all connected with the wastewater tank;
The filter is also connected with the wastewater tank;
The wastewater tank is also connected with the advection sedimentation tank.
Optionally, the flocculation tank comprises a turbulent flow reaction zone, a sedimentation zone and a water production zone which are separated by a partition plate;
a first overflow port is arranged on a partition plate between the turbulent flow reaction zone and the sedimentation zone;
A second overflow port is arranged on the partition plate between the sedimentation area and the water producing area;
One side of the sedimentation area, which is close to the water producing area, is provided with an inclined plate, and the inclined plate is arranged downwards in an inclined way from one side, which is close to the water producing area, to one side, which is close to the sedimentation area.
Optionally, an oil scraping device is also arranged on the advection sedimentation tank;
The oil scraping device is arranged above the advection sedimentation tank in a crossing manner, the oil scraping device can horizontally reciprocate along the side edge of the advection sedimentation tank which is close to the oil scraping device, and an oil skimming device is arranged at the moving terminal of the oil scraping device.
Optionally, the oil scraping device comprises guide rails arranged on two sides of the advection sedimentation tank in parallel and moving devices on two sides matched with the guide rails;
The moving device is connected with the telescopic supporting frame through the base, and the supporting frames on two sides are connected through the scraping plates.
Optionally, the oil skimming device comprises a suction pump and a cantilever which are arranged on the mobile trolley, and the other end of the cantilever is connected with the oil skimming bucket;
The oil skimming hopper is connected with the suction pump through a flexible hose, and the output end of the suction pump is connected with the waste oil collecting box through a pipeline.
According to the coal mine drainage water treatment system, the advection sedimentation tank is arranged to remove oil and pre-sediment the drainage water, the pretreated drainage water and the flocculating agent are mixed in the pipeline mixer and then input into the flocculating tank to be subjected to flocculation treatment, supernatant with lower turbidity is obtained, the supernatant obtained after flocculation is transferred into the filter to be filtered, so that the cleanliness of the supernatant is further improved, the filtered clean water is temporarily stored in the reuse water tank, and the clean water is distributed to water using equipment for use through the third water pump. The device provided by the application is used for recycling the coal mine drainage water after preliminary cleaning through the cooperation of the equipment, so that the waste of water resources is effectively reduced, and the device has the beneficial effect of reducing pollution.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a coal mine drainage water treatment system according to an embodiment of the application;
FIG. 2 is a schematic diagram of a coal mine drainage water treatment system according to another embodiment of the present application;
FIG. 3 is a schematic diagram of a coal mine drainage water treatment system according to another embodiment of the present application;
FIG. 4 is a schematic view of a flocculation basin according to an embodiment of the present application;
fig. 5 is a schematic front view of a horizontal sedimentation tank according to an embodiment of the present application;
fig. 6 is a schematic perspective view of a horizontal sedimentation tank according to an embodiment of the present application;
FIG. 7 is a schematic perspective view illustrating an angle of a horizontal sedimentation tank according to an embodiment of the present application;
Fig. 8 is a schematic perspective view of another angle of a horizontal sedimentation tank according to an embodiment of the present application.
Reference numerals illustrate:
1. Drain water discharge pipeline, 2, pipeline mixer, 3, flocculation tank, 4, middle water tank, 5, filter, 6, reuse water tank, 7, water equipment, 8, advection sedimentation tank, 9, ultrafiltration reverse osmosis system, 10, first water pump, 11, sludge tank, 12, sludge concentration tank, 13, filter press, 14, wastewater tank, 20, dosing metering pump, 31, partition, 32, turbulence reaction area, 33, sedimentation area, 34, water producing area, 35, sloping plate, 40, second water pump, 60, third water pump, 81, oil scraping device, 82, oil skimming device, 83, waste oil collecting tank, 90, fourth water pump, 91, fresh water tank, 301, first overflow port, 302, second overflow port, 811, guide rail, 812, moving device, 813, base, 814, support frame, 815, scraping plate, 821, moving trolley, 822, suction pump, 823, cantilever, 824, oil skimming hopper, 825, flexible hose.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are also within the scope of the application.
As shown in fig. 1, the application provides a coal mine drainage water treatment system, which comprises a pipeline mixer 2, a flocculation tank 3, an intermediate water tank 4, a filter 5, a reuse water tank 6 and water using equipment 7 which are sequentially connected with a drainage water discharge pipeline 1 in series;
a first water pump 10 is arranged between the drain water discharge pipeline 1 and the pipeline mixer 2;
a second water pump 40 is arranged between the middle water tank 4 and the filter 5;
a third water pump 60 is arranged between the reuse water tank 6 and the water using equipment 7;
The pipeline mixer 2 is also connected with a dosing metering pump 20;
a advection sedimentation tank 8 is also arranged between the first water pump 10 and the pipeline mixer 2.
In use, the drain water sewage discharged from the drain water discharge pipeline 1 is pumped and pressurized by the first water pump 10 and then transferred into the advection sedimentation tank 8 for pre-sedimentation oil removal treatment (because grease and hydrocarbon compounds are mixed in the drain water, and the sewage floats on the liquid surface to form a grease layer).
After the oil removal and pre-precipitation treatment of the drainage water in the horizontal flow sedimentation tank 8, the drainage water and the flocculation reagent (the reagent such as polyacrylamide, polyaluminium chloride and the like in the application) added by the dosing metering pump 20 are uniformly mixed in the pipeline mixer 2, and the drainage water mixed with the reagent flows into the flocculation tank 3 for coagulation acceleration and sedimentation.
The flocculated clean water flows into the intermediate water tank 4 for buffering. The clean water in the middle water tank 4 is transferred to the filter 5 for filtering through the second water pump 40, the filter is a high-efficiency fiber ball filter in the application, the transferred clean water is transferred to the reuse water tank 6 after being filtered, and then is transferred to the water using equipment 7 (such as equipment with low requirement on water quality, such as a desulfurization process water tank of a power plant, dust falling in a coal mine, spraying and the like) through the third water pump 60 for use.
According to the coal mine drainage water treatment system provided by the application, the horizontal sedimentation tank 8 is arranged to carry out oil removal and pre-sedimentation treatment on drainage water, the pretreated drainage water and flocculation reagent are mixed in the pipeline mixer 2 and then input into the flocculation tank 3 to carry out flocculation treatment to obtain supernatant with lower turbidity, the supernatant obtained after flocculation is transferred into the filter 5 to be filtered so as to further improve the cleanliness of the supernatant, the filtered clean water is temporarily stored in the reuse water tank 6, and then is distributed to the water using equipment 7 for use through the third water pump 60. The device provided by the application is used for recycling the coal mine drainage water after preliminary cleaning through the cooperation of the equipment, so that the waste of water resources is effectively reduced, and the device has the beneficial effect of reducing pollution.
As shown in fig. 2, the reuse water tank 6 is optionally further connected to an ultrafiltration reverse osmosis system 9 and a fresh water tank 91 in sequence by a fourth water pump 90.
In the application, when clean water is needed to be recycled to the occasion with high requirement on water quality condition (such as water for steam production), the clean water is needed to be transferred to the ultrafiltration reverse osmosis system 9 for further clean water purification by membrane filtration such as reverse osmosis, and the purified clean water is transferred to the fresh water pond 91 for temporary storage.
As shown in fig. 3, the flocculation tank 3 and the sedimentation tank 8 are optionally connected with a sludge tank 11;
The sludge tank 11 is sequentially connected with a sludge concentration tank 12 and a filter press 13, and the sludge tank 11, the sludge concentration tank 12 and the filter press 13 are all connected with a wastewater tank 14;
The filter 5 is also connected with a wastewater tank 14;
the wastewater tank 14 is also connected with the advection sedimentation tank 8.
The sludge deposited in the flocculation tank 3 and the parallel sedimentation tank 8 is transferred into a sludge tank 11, then the sludge slurry in the sludge tank 11 is transferred into a sludge concentration tank 12 for sedimentation concentration, the concentrated sludge is transferred into a filter press 13 for press filtration, the filtrate obtained by press filtration and the supernatant in the sludge tank 11 and the sludge concentration tank 12 are combined and transferred into a wastewater tank 14, and the filter cake obtained by press filtration is transferred to a coal yard. The filter-pressed wastewater in the wastewater tank 14 is transferred to the advection sedimentation tank 8 again for the next round of treatment.
The filter 5 is blocked after a period of operation, and is required to be backwashed for dredging, and the backwashed water in the process contains a large amount of dirt, and is transferred into the wastewater tank 14 for temporary storage.
As shown in fig. 4, the flocculation basin 3 optionally comprises a turbulent reaction zone 32, a sedimentation zone 33 and a water production zone 34, separated by a partition 31;
a first overflow 301 is provided in the partition 31 between the turbulent reaction zone 32 and the precipitation zone 33;
a second overflow port 302 is arranged on the partition plate 31 between the sedimentation area 33 and the water producing area 34;
An inclined plate 35 is arranged on one side, close to the water producing area 34, of the sedimentation area 33, and the inclined plate 35 is arranged downwards in an inclined manner from one side, close to the water producing area 34, to one side, close to the sedimentation area 33.
In the application, when the flocculation and precipitation are carried out, the drainage water firstly flows into the turbulence reaction area 32 (the turbulence reaction area 32 is provided with a stirring device) to be stirred, so that the flocculant adsorbs more dirt particles and is agglomerated, then the stirred drainage water overflows to the precipitation area 33 through the first overflow port 301 to be settled, the settled supernatant overflows to the water producing area 34 through the second overflow port 302, the settled sludge is transferred into the sludge tank 11, the inclined plate 35 arranged in the precipitation area 33 is provided with a protrusion perpendicular to the water flow direction, the flocculation particles in the supernatant can be reduced to flow into the water producing area 34, and the clean water output by the water producing area 34 flows into the intermediate water tank 4 to be buffered.
As shown in fig. 5, optionally, the advection sedimentation tank 8 is further provided with an oil scraping device 81;
The oil scraping device 81 is arranged above the advection sedimentation tank 8 in a straddling way, the oil scraping device 81 can horizontally reciprocate along the side edge of the advection sedimentation tank 8 which is close to the oil scraping device 81, and an oil skimming device 82 is arranged at the moving terminal of the oil scraping device 81.
In the application, the oil scraping device 81 which moves reciprocally can scrape the grease on the drain water layer to the side close to the oil skimming device 82, and then the accumulated grease is skimmed by the oil skimming device 82, so that the oil removal of the drain water is realized.
As shown in fig. 6 to 8, the oil scraping device 81 optionally includes a guide rail 811 arranged in parallel on both sides of the advection sedimentation tank 8 and a moving device 812 on both sides matching the guide rail 811;
The moving device 812 is connected with a telescopic supporting frame 814 through a base 813, and the supporting frames 814 on two sides are connected through a scraping plate 815.
At this time, the height of the supporting frame 814 can be adjusted to lift the scraping plate 815 off the liquid level, and the scraping plate 815 can be moved to a position far away from the oil skimming device 82 by a moving device 812 (the moving device 812 is a structure such as a sliding block and a pulley which are matched with the guide rail 811, and the moving device 812 can be driven by a corresponding power device such as a motor (or can be moved by an operator through a dynamic operation), at this time, the height of the supporting frame 814 is adjusted again to lower the scraping plate 815 to a position suitable for scraping the oil layer, and then the moving device 812 drives the oil scraping device 81 to slowly move at a constant speed towards one end of the oil skimming device 82 to scrape the oil layer, so that the oil layer is prevented from being diffused again when the oil scraping device 81 scrapes the oil layer to a position close to the oil skimming device 82.
As shown in fig. 6-8, optionally, the oil skimming device 82 includes a suction pump 822 and a cantilever 823 mounted on a mobile trolley 821, and the other end of the cantilever 823 is connected with an oil skimming hopper 824;
The skimming hopper 824 is connected to a suction pump 822 by a flexible hose 825, and the output of the suction pump 822 is connected to a waste oil header 83 by a pipe.
In use of the present application, when the scraping device 81 scrapes and gathers grease on the side near the skimming device 82, the height of the cantilever 823 is adjusted to collect the grease layer into the skimming hopper 824, and the suction pump 822 is started to suck the grease in the skimming hopper 824 through the flexible hose 825 and discharge the grease into the waste oil header 83.
The application provides a coal mine drainage water treatment system, which comprises the following working processes:
In use, the drain water sewage discharged from the drain water discharge pipeline 1 is pumped and pressurized by the first water pump 10 and then transferred into the advection sedimentation tank 8 for pre-sedimentation oil removal treatment (because grease and hydrocarbon compounds are mixed in the drain water, and the sewage floats on the liquid surface to form a grease layer). When the drain water flows into the advection sedimentation tank 8 for treatment, the flow speed is reduced to gradually form advection, grease, hydrocarbons and the like in the drain water gradually float upwards to form a grease layer under the condition of low turbulence, at this time, the scraper 815 can be lifted away from the liquid level by adjusting the height of the supporting frame 814, the grease layer is stopped by the moving device 812 (the moving device 812 is in a structure such as a sliding block, a pulley and the like matched with the guide rail 811, the moving device 812 can be driven by a corresponding power device such as a motor or the like, and can also be moved by the dynamic operation of an operator) to move the grease scraping device 81 to one end far away from the grease skimming device 82, at this time, the height of the supporting frame 814 is adjusted again to lower the scraper 815 to a position suitable for scraping the grease layer, the moving device 81 is driven by the moving device 812 to one end of the skimming device 82 to scrape the grease layer at a uniform speed, the grease layer is stopped when the grease layer is scraped to a position close to the skimming device 82 by the moving device 81, at this time, the grease layer is collected into the skimming hopper 824 by adjusting the height of the cantilever 823, and at this time, the waste oil is pumped into the suction tank 83 in the skimming hose 824 by the flexible hose 824. At the same time as the scraping, the drain water is also precipitating, wherein the precipitated dirt is transferred to the sludge tank 11 for concentrated treatment.
After the oil removal and pre-precipitation treatment of the drainage water in the horizontal flow sedimentation tank 8, the drainage water and the flocculation reagent (the reagent such as polyacrylamide, polyaluminium chloride and the like in the application) added by the dosing metering pump 20 are uniformly mixed in the pipeline mixer 2, and the drainage water mixed with the reagent flows into the flocculation tank 3 for coagulation acceleration and sedimentation.
When flocculation and sedimentation are carried out, the drainage water firstly flows into a turbulence reaction zone 32 (a stirring device is arranged in the turbulence reaction zone 32) to be stirred, so that more dirt particles are adsorbed and agglomerated by a flocculating agent, then the stirred drainage water overflows to a sedimentation zone 33 through a first overflow port 301 to be settled, the settled supernatant overflows to a water production zone through a second overflow port 302, the settled sludge is transferred into a sludge tank 11, a sloping plate 35 arranged in the sedimentation zone 33 is provided with a protrusion perpendicular to the water flow direction, the flocculated particles in the supernatant can be reduced to flow into a water production zone 34, and the flocculated clean water output by the water production zone 34 flows into an intermediate water tank 4 to be buffered. The clean water in the middle water tank 4 is transferred to the filter 5 for filtering through the second water pump 40, the filter is a high-efficiency fiber ball filter in the application, the transferred clean water is transferred to the reuse water tank 6 after being filtered, and then is transferred to the water using equipment 7 (such as equipment with low requirement on water quality, such as a desulfurization process water tank of a power plant, dust falling in a coal mine, spraying and the like) through the third water pump 60 for use. When the clean water is needed to be recycled to the occasion with high requirement on the water quality condition (for example, the water is used for producing steam), the clean water is needed to be transferred to an ultrafiltration reverse osmosis system 9 for further purification by membrane filtration such as reverse osmosis, and the purified fresh water is transferred to a fresh water tank 91 for temporary storage.
The sludge slurry in the sludge tank 11 is transferred into a sludge concentration tank 12 for precipitation concentration, the concentrated sludge is transferred into a filter press 13 for filter pressing, filtrate obtained by filter pressing and supernatant in the sludge tank 11 and the sludge concentration tank 12 are combined and transferred into a wastewater tank 14, and filter cakes are transferred to a coal yard. The filter-pressed wastewater in the wastewater tank 14 is transferred to the advection sedimentation tank 8 again for the next round of treatment.
The filter 5 is blocked after a period of operation, and is required to be backwashed for dredging, and the backwashed water in the process contains a large amount of dirt, and is transferred into the wastewater tank 14 for temporary storage.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not deviate the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present application.
Claims (6)
1. The coal mine drainage water treatment system is characterized by comprising a pipeline mixer (2), a flocculation tank (3), an intermediate water tank (4), a filter (5), a reuse water tank (6) and water equipment (7) which are sequentially connected with a drainage water discharge pipeline (1) in series;
A first water pump (10) is arranged between the drain water discharge pipeline (1) and the pipeline mixer (2);
a second water pump (40) is arranged between the middle water tank (4) and the filter (5);
A third water pump (60) is arranged between the reuse water tank (6) and the water using equipment (7);
The pipeline mixer (2) is also connected with a dosing metering pump (20);
A advection sedimentation tank (8) is also arranged between the first water pump (10) and the pipeline mixer (2);
The flocculation tank (3) comprises a turbulent flow reaction zone (32), a sedimentation zone (33) and a water production zone (34) which are separated by a baffle plate (31);
a first overflow port (301) is arranged on a partition plate (31) between the turbulent flow reaction zone (32) and the sedimentation zone (33);
A second overflow port (302) is arranged on the partition plate (31) between the sedimentation zone (33) and the water producing zone (34);
An inclined plate (35) is arranged on one side, close to the water producing area (34), in the sedimentation area (33), and the inclined plate (35) is obliquely downwards arranged from one side, close to the water producing area (34), to one side, close to the sedimentation area (33).
2. The coal mine drainage water treatment system according to claim 1, wherein the reuse water tank (6) is further connected with an ultrafiltration reverse osmosis system (9) and a fresh water tank (91) in sequence through a fourth water pump (90).
3. The coal mine drainage water treatment system according to claim 1, wherein the flocculation tank (3) and the parallel sedimentation tank (8) are connected with a sludge tank (11);
The sludge tank (11) is sequentially connected with the sludge concentration tank (12) and the filter press (13), and the sludge tank (11), the sludge concentration tank (12) and the filter press (13) are all connected with the wastewater tank (14);
The filter (5) is also connected with a wastewater tank (14);
The wastewater tank (14) is also connected with a advection sedimentation tank (8).
4. The coal mine drainage water treatment system according to claim 1, wherein the advection sedimentation tank (8) is further provided with an oil scraping device (81);
The oil scraping device (81) is arranged above the advection sedimentation tank (8) in a straddling mode, the oil scraping device (81) can horizontally reciprocate along the side edge of the advection sedimentation tank (8) which is close to the oil scraping device, and an oil skimming device (82) is arranged at the moving terminal of the oil scraping device (81).
5. The coal mine drainage water treatment system according to claim 4, wherein the oil scraping device (81) comprises guide rails (811) arranged on two sides of the advection sedimentation tank (8) in parallel and moving devices (812) on two sides matched with the guide rails (811);
The mobile device (812) is connected with a telescopic supporting frame (814) through a base (813), and the supporting frames (814) on two sides are connected through a scraping plate (815).
6. The coal mine drainage water treatment system according to claim 5, wherein the oil skimming device (82) comprises a suction pump (822) and a cantilever (823) which are mounted on a mobile trolley (821), and the other end of the cantilever (823) is connected with an oil skimming hopper (824);
The oil skimming hopper (824) is connected with the suction pump (822) through a flexible hose (825), and the output end of the suction pump (822) is connected with the waste oil collecting box (83) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422775988.0U CN223409487U (en) | 2024-11-14 | 2024-11-14 | Coal mine drainage water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422775988.0U CN223409487U (en) | 2024-11-14 | 2024-11-14 | Coal mine drainage water treatment system |
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| CN223409487U true CN223409487U (en) | 2025-10-03 |
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| CN202422775988.0U Active CN223409487U (en) | 2024-11-14 | 2024-11-14 | Coal mine drainage water treatment system |
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