A high-mineralization mine water pretreatment system

Abstract

The present invention provides a high-mineralization mine water pretreatment system, comprising an end-to-end connected inclined plate regulating sedimentation tank, a softening and coagulation sedimentation tank, and a zeolite filter. The softening and coagulation sedimentation tank is connected to the zeolite filter via a pipeline pump and a pipeline mixer. Due to its rational structural design, this system can be installed underground. A portion of the treated mine water is directly used for underground dust removal, while the majority is brought above ground for membrane treatment and reuse, achieving full recycling of the mine water.

Description

Technical Field

[0001] The present invention relates to the technical field of mine water treatment, in particular to a high-mineralization mine water pretreatment system. Background Art

[0002] During coal mining, groundwater and some surface water seep into the tunnels through rock cracks, forming mine water.

[0003] With the increasing use of deep-drain reuse and treatment of coal mine wastewater in my country, membrane treatment technology is increasingly being applied in this field. However, membranes are prone to clogging, resulting in reduced treatment capacity, increased membrane cleaning frequency, and increased operating costs. Suspended solids, calcium and magnesium ions, and microorganisms are the primary factors contributing to membrane fouling. Coagulation and sedimentation are generally used in mine water pretreatment, which is only moderately effective in removing suspended colloids. Treatment of calcium and magnesium ions and microorganisms is less effective. Highly mineralized mine water often exceeds standards for not only salinity but also suspended solids, calcium and magnesium ions, and total nitrogen concentrations. Removing these contaminants through pretreatment can reduce the load on reverse osmosis, alleviate membrane fouling, and increase water production, playing a significant role in the reuse of coal mine wastewater.

[0004] Secondly, the inclined plate sedimentation method is currently mostly used to precipitate suspended solids, but the inclined plate sedimentation is not only inefficient, but also requires regular cleaning of the inclined plate and the sedimentation tank, which increases the workload and does not improve the efficiency. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, effectively remove suspended matter, calcium and magnesium ions, total nitrogen and microorganisms in highly mineralized mine water, reduce the load of reverse osmosis, alleviate membrane pollution, increase water production rate, and realize efficient and economical reuse of highly mineralized mine water.

[0006] The technical solution adopted in the present invention is:

[0007] A high-mineralization mine water pretreatment system comprises an inclined plate regulating sedimentation tank, a softening coagulation sedimentation tank and a zeolite filter which are connected end to end in sequence, wherein the softening coagulation sedimentation tank is connected to the zeolite filter via a pipeline pump and a pipeline mixer.

[0008] As an optimal solution for the inclined plate regulating sedimentation tank, the interior of the inclined plate regulating sedimentation tank is divided into a sedimentation area and a water collection area by a baffle. A high-efficiency sedimentation bin is provided above the sedimentation area, a sedimentation slope is provided below, and a scraper is provided on the sedimentation slope.

[0009] As a preferred solution for a high-efficiency sedimentation tank, the high-efficiency sedimentation tank is placed on a channel steel, with both ends of the channel steel connected to the front and rear walls of the inclined plate regulating sedimentation tank. The high-efficiency sedimentation tank includes multiple parallel partitions, with reciprocating S-shaped inclined tubes installed between adjacent partitions. The troughs and crests of the S-shaped inclined tubes are respectively connected to adjacent partitions, and the troughs and crests of two adjacent S-shaped inclined tubes are opposite to each other, achieving rapid separation and sedimentation of suspended matter.

[0010] In order to automatically clean the sediment, the sedimentation slope is improved and a scraper is designed. The sedimentation slope includes two first slopes arranged opposite to each other, a second slope is arranged between the two first slopes, and the bottoms of the two slopes of the second slope are both against the bottoms of the two first slopes;

[0011] The scraper includes a first scraper and a second scraper. The top of the first scraper and the second scraper are both provided with a hinge joint. After the two hinge joints are aligned, they are connected by a pin shaft, and a first magnet is provided on the back of the pin shaft. In the initial stage, the first scraper and the second scraper are respectively located on the two inclined surfaces of the second slope.

[0012] Furthermore, a first reduction motor is provided at the center position of the back side of the first scraper, a driving wheel is provided on the output shaft of the first reduction motor, a driven wheel is provided on the back side of the second scraper, the driven wheel is connected to the vertical plate through a rotating shaft, the vertical plate is fixed at the center position of the second scraper, a second magnet is provided on the back side of the vertical plate and the first reduction motor, slideways matching the driving wheel and the driven wheel are provided on the first slope and the second slope, and a guide mechanism for pulling the first scraper and the second scraper to flip is provided on the rear wall of the inclined plate adjustment sedimentation tank.

[0013] Furthermore, the guide mechanism includes a first arc-shaped gear ring and a second arc-shaped gear ring that are symmetrically arranged, the first arc-shaped gear ring and the second arc-shaped gear ring being connected to the rear wall via a column, a second reduction motor being provided at a smooth connection between opposite sides of the first arc-shaped gear ring and the second arc-shaped gear ring, a first gear being provided on an output shaft of the second reduction motor, and a third magnet being connected to an end of the output shaft via a bearing, and the first gear being driven by the second reduction motor to rotate on the first arc-shaped gear ring and the second arc-shaped gear ring;

[0014] The back side of the second reduction motor is limited in the first arc guide groove or the second arc guide groove by the first T-shaped limiting seat, and the first arc guide groove is smoothly connected to the opposite side of the second arc guide groove.

[0015] Furthermore, a first auxiliary arc-shaped gear ring and a second auxiliary arc-shaped gear ring are provided on opposite sides of the first arc-shaped gear ring and the second arc-shaped gear ring, and a first auxiliary arc-shaped guide groove and a second auxiliary arc-shaped guide groove are provided on the back sides of the first auxiliary arc-shaped gear ring and the second auxiliary arc-shaped gear ring;

[0016] A second T-shaped limit seat and a third T-shaped limit seat are respectively provided in the first auxiliary arc guide groove and the second auxiliary arc guide groove. The second T-shaped limit seat and the third T-shaped limit seat are respectively installed on the back of the third reduction motor and the fourth reduction motor. The output shafts of the third reduction motor and the fourth reduction motor are respectively provided with a second gear and a third gear, and a fourth magnet is provided at the end of the output shaft of the third reduction motor and the fourth reduction motor.

[0017] Furthermore, concentric first arc-shaped traction groove and second arc-shaped traction groove are respectively arranged below the first arc-shaped guide groove and the second arc-shaped guide groove, and fourth T-shaped limit seats are respectively arranged in the first arc-shaped traction groove and the second arc-shaped traction groove, and fifth magnets are arranged at the ends of the fourth T-shaped limit seats; in the initial stage, the first magnet and the second magnet are respectively attracted to the two fifth magnets.

[0018] As a preferred solution for the softening coagulation sedimentation tank, a first sedimentation tower is provided inside the softening coagulation sedimentation tank, and a second sedimentation tower is wrapped around the outside of the first sedimentation tower, the first sedimentation tower is connected to the inner wall of the second sedimentation tower through multiple support columns, and the first sedimentation tower is suspended inside the second sedimentation tower, a first liquid discharge cap is provided on the top of the first sedimentation tower, and a second liquid discharge cap is provided at the bottom of the second sedimentation tower, and the bottom of the second liquid discharge cap is installed in the arc groove of the stable seat on the bottom wall of the softening coagulation sedimentation tank;

[0019] A softener is added into the first precipitation tower; and a coagulant is added between the outer wall of the first precipitation tower and the inner wall of the second precipitation tower.

[0020] As a preferred solution for the flocculation sedimentation area, multiple groups of first sedimentation cones with downward-facing bell mouths are provided on the outer wall of the second sedimentation tower, and multiple groups of second sedimentation cones with upward-facing bell mouths are provided on the inner wall of the softening coagulation sedimentation tank. Each layer of the second sedimentation cones is located above each layer of the first sedimentation cones, and cooperates with the first sedimentation cones to form a "Z"-shaped water passage.

[0021] Beneficial effects of the present invention:

[0022] 1. The present invention improves the structure of the inclined plate sedimentation system. By sequentially splicing a partition plate and a reciprocatingly curved S-shaped inclined tube, a sedimentation structure is formed that integrates multiple high-efficiency inclined tubes. These numerous efficient inclined tubes first divide the well water entering the sedimentation structure into several tributaries, thereby reducing the well water flow rate and extending the time the well water spends passing through the efficient inclined tubes, thereby improving sedimentation efficiency. Furthermore, both the partition plate and the S-shaped inclined tube can be made of degradable, disposable materials and can be directly replaced after a period of use. This not only improves sedimentation efficiency but also allows for quick replacement, saving manpower and material resources, making it more suitable for underground mine water sedimentation.

[0023] 2. The present invention is provided with a sedimentation slope at the bottom of the high-efficiency sedimentation bin, and the scraper is driven by a driving mechanism to automatically hang the suspended matter settled on the sedimentation slope to one side of the sedimentation tank, and the sediment can be sucked out by a negative pressure device to complete the automatic cleaning of the sedimentation tank, which is more suitable for underground mine water filtration.

[0024] 3. The scraper blade designed according to the sedimentation slope of the present invention consists of a first scraper and a second scraper. The top of the first scraper and the second scraper are both provided with a hinge joint. The two hinge joints are aligned and connected by a pin shaft. In the initial stage, the first scraper and the second scraper are respectively located on the two inclined surfaces of the second slope, and there is a certain angle between the first scraper and the second scraper, which is consistent with the top angle of the second slope. The two can only rotate in opposite directions to the same axis. First, the second reduction motor drives the gear to engage the first arc-shaped gear ring and move along the first arc-shaped guide groove to rotate the hinged ends of the first scraper and the second scraper to the center line of the first slope. At this time, the second magnet on the side wall of the second scraper is attracted by the fourth magnet at the end of the output shaft of the third reduction motor. Then, the third reduction motor is driven to drive the second scraper to rotate along the first auxiliary arc-shaped guide groove to the inclined surface of the first slope. At this time, the first scraper and the second scraper are located on the same axis and are attached to the first slope. The first reduction motor is driven to clean the sediment on the first slope. When cleaning the other first slope, the first and second scrapers are first reset, and then the first scraper is rotated in the opposite direction until it is coaxial with the second scraper and fits against the other first slope to clean the sediment. During this process, the first and second scrapers are limited by the first and second arc-shaped traction grooves, which are concentric with the first and second arc-shaped guide grooves. When the second scraper is rotated in the opposite direction, the first scraper is limited by the first arc-shaped traction groove, so that the first scraper only rotates around its bottom; the same process is applied to the second scraper.

[0025] 4. Softening and coagulation sedimentation tanks, which integrate softening, coagulation, and sedimentation functions, significantly reduce floor space. To improve sedimentation efficiency, multiple sets of first sedimentation cones with downward-facing bellmouths are installed on the outer wall of the second sedimentation tower, while multiple sets of second sedimentation cones with upward-facing bellmouths are installed on the inner wall of the softening and coagulation sedimentation tank. Each layer of second sedimentation cones is located above each layer of first sedimentation cones, and together with the first sedimentation cones, they form a "Z"-shaped water passage. Well water flowing out of the second sedimentation tower passes through the first and second sedimentation cones in sequence, completing a two-step sedimentation process for a more thorough sedimentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of a high-mineralization mine water pretreatment system in Example 1.

[0028] Figure 2 This is the main view of the inclined plate adjustment sedimentation tank in Example 2.

[0029] Figure 3 This is a schematic diagram of the high-efficiency sedimentation tank in Example 2.

[0030] Figure 4 Schematic diagram of the scraper in Example 2.

[0031] Figure 5 This is a schematic diagram of the first scraper in Example 2.

[0032] Figure 6 This is a schematic diagram of the installation of the drive mechanism and the rear wall in Example 2.

[0033] Figure 7 This is a schematic diagram of the second reduction motor, the first limit seat, and the first gear in Example 2.

[0034] Figure 8 This is a schematic diagram of the fourth T-shaped limit seat in Example 2.

[0035] Figure 9 This is a front cross-sectional view of the softening coagulation sedimentation tank in Example 3.

[0036] Figure 10 Schematic diagram of the V-shaped scraper in Example 3.

[0037] Among them, 1. Inclined plate regulating sedimentation tank; 101. Baffle; 102. Water collection area; 2. Softening coagulation sedimentation tank; 201. Flocculation sedimentation area; 202. Second sedimentation tower; 203. First sedimentation tower; 204. First sedimentation cone; 205. Second sedimentation cone; 206. Second liquid outlet cap; 207. First liquid outlet cap; 3. Zeolite filter; 4. High-efficiency sedimentation bin; 401. Partition; 402. S-shaped inclined pipe; 5. First slope; 6. First auxiliary arc guide groove; 7. First auxiliary arc gear ring; 8. First arc guide groove; 9. First arc gear ring; 10. First arc traction groove; 11 , first scraper; 12, second ramp; 13, second scraper; 14, second arc-shaped traction groove; 15, second arc-shaped ring gear; 16, second arc-shaped guide groove; 17, second auxiliary arc-shaped ring gear; 18, second auxiliary arc-shaped guide groove; 19, first T-shaped limit seat; 20, second reduction motor; 21, third magnet; 22, first gear; 23, fourth T-shaped limit seat; 24, first reduction motor; 25, driving wheel; 26, vertical plate; 27, driven wheel; 28, V-shaped scraper; 29, fifth reduction motor; 30, worm; 31, worm wheel; 32, rotating column; 33, pulley; 34, vertical plate. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example 1

[0039] This embodiment Figure 1 As shown, a high-mineralization mine water pretreatment system is provided, including an inclined plate regulating sedimentation tank 1, a softening coagulation sedimentation tank 2 and a zeolite filter 3 connected in sequence end to end, wherein the softening coagulation sedimentation tank 2 is connected to the zeolite filter 3 through a pipeline pump and a pipeline mixer.

[0040] Mine water treatment equipment is installed underground, and the treated mine water can be used for underground dust removal or lifted to the surface for deep treatment, while the generated sludge is not brought up to the surface. Therefore, compared with conventional mine water treatment processes, it can save ground space, reduce mine drainage power consumption, reduce wear on drainage pipes, and directly use treated mine water for underground dust reduction. In addition, the inclined plate regulating sedimentation tank 1, which integrates sedimentation and regulation functions, and the softening coagulation sedimentation tank 2, which integrates softening, coagulation, and sedimentation functions, have greatly reduced the floor space required and are suitable for underground use. Finally, when the effluent is lifted to the surface for membrane treatment, the effective removal of suspended solids, calcium and magnesium ions, total nitrogen, and microorganisms in the highly mineralized mine water reduces the load on the membrane treatment unit, alleviates membrane pollution, and increases water production, truly realizing the efficient and economical recycling of mine water. Example 2

[0041] On the basis of Example 1, considering the difficulty of underground cleaning, the inclined plate regulating sedimentation tank 1 was improved, such as Figure 2-8 As shown, the interior of the inclined plate regulating sedimentation tank 1 is divided into a sedimentation area and a water collection area 102 by a baffle 101. A high-efficiency sedimentation bin 4 is provided above the sedimentation area, and a sedimentation slope is provided below, and a mud scraper is provided on the sedimentation slope.

[0042] like Figure 3 As shown, the high-efficiency sedimentation bin 4 is placed on a channel steel, with both ends of the channel steel connected to the front and rear walls of the inclined plate regulating sedimentation tank 1. The high-efficiency sedimentation bin 4 includes multiple parallel partitions 401. Between adjacent partitions 401, a reciprocatingly curved S-shaped inclined tube 402 is provided. The troughs and crests of the S-shaped inclined tube 402 are respectively connected to adjacent partitions 401, and the troughs and crests of two adjacent S-shaped inclined tubes 402 are opposite. This achieves rapid separation and sedimentation of suspended matter, thereby removing calcium and magnesium hardness, colloids, and fine suspended matter.

[0043] Water inlets and outlets are symmetrically arranged on both sides of the inclined plate regulating sedimentation tank 1. The water inlet is located below the high-efficiency sedimentation bin 4. After the mineral water enters the sedimentation area, it accumulates upward and passes through the high-efficiency sedimentation bin 4, and then enters the water collection area 102 on the right side of the baffle 101 along the top of the baffle 101. The water in the water collection area 102 flows to the softening coagulation sedimentation tank 2 through the water outlet.

[0044] By sequentially splicing partitions 401 and reciprocatingly curved S-shaped inclined tubes 402, a sedimentation structure is formed that integrates multiple high-efficiency inclined tubes. These numerous efficient inclined tubes first divide the well water entering the sedimentation structure into several tributaries, thereby reducing the well water flow rate and extending the time the well water spends passing through the efficient inclined tubes, thereby improving sedimentation efficiency. Furthermore, both partitions 401 and S-shaped inclined tubes 402 are made of biodegradable, disposable materials and can be replaced after a period of use. This not only improves sedimentation efficiency but also allows for quick replacement, saving manpower and material resources, making it more suitable for underground mineral water sedimentation.

[0045] Sediment deposited on the sedimentation slope requires regular cleaning. To improve cleaning efficiency and achieve automated cleaning, the sedimentation slope is improved. The sedimentation slope includes two opposing first slopes 5, with a second slope 12 disposed between the two first slopes 5. The bottoms of the two slopes of the second slope 12 abut against the bottoms of the two first slopes 5. The slope length of the second slope 12 is 1 / 2 of the first slope 5.

[0046] The scraper includes a first scraper 11 and a second scraper 13. The top of the first scraper 11 and the second scraper 13 are both provided with a hinge joint. After the two hinge joints are aligned, they are connected by a pin shaft, and a first magnet is provided on the back of the pin shaft. In the initial stage, the first scraper 11 and the second scraper 13 are respectively located on the two inclined surfaces of the second slope 12.

[0047] Due to the unique hinged arrangement of the first scraper 11 and the second scraper 13, the first scraper 11 and the second scraper 13 will not rotate relative to each other, but will only rotate in opposite directions.

[0048] A first reduction motor 24 is provided at the center position of the back side of the first scraper 11, and a driving wheel 25 is provided on the output shaft of the first reduction motor 24. A driven wheel 27 is provided on the back side of the second scraper 13, and the driven wheel 27 is connected to the vertical plate 26 through a rotating shaft. The vertical plate 26 is fixed at the center position of the second scraper 13. Second magnets are provided on the back side of the vertical plate 26 and the first reduction motor 24. The second magnet is connected to the vertical plate 26 or the side wall of the first reduction motor 24 through a connecting rod. Slides that cooperate with the driving wheel 25 and the driven wheel 27 are provided on the first slope 5 and the second slope 12. A guide mechanism for pulling the first scraper 11 and the second scraper 13 to flip is provided on the rear wall of the inclined plate adjustment sedimentation tank 1.

[0049] The purpose of the guide mechanism is to drive the first scraper 11 or the second scraper 13 to rotate around the first scraper 11 or the second scraper 13 to the inclined surface of the first slope 5. Therefore, the guide mechanism includes a symmetrically arranged first arcuate gear ring 9 and a second arcuate gear ring 15, which are connected to the rear wall of the inclined plate adjustment sedimentation tank 1 through a column, and a second reduction motor 20 is provided at the smooth connection on the opposite sides of the first arcuate gear ring 9 and the second arcuate gear ring 15. A first gear 22 is provided on the output shaft of the second reduction motor 20, and the first gear 22 is meshed with the teeth of the above-mentioned smooth connection. The teeth of the smooth connection smoothly transition with the teeth on the first arcuate gear ring 9 and the second arcuate gear ring 15 on both sides, and the first gear 22 is driven by the second reduction motor 20 to rotate on the first arcuate gear ring 9 or the second arcuate gear ring 15.

[0050] A third magnet 21 is connected to the end of the output shaft through a bearing. When the second reduction motor 20 drives the first gear 22 to rotate on the first arc-shaped ring gear 9 or the second arc-shaped ring gear 15, the third magnet 21 is attracted to the first magnet.

[0051] The back of the second reduction motor 20 is limited in the first arcuate guide groove 8 or the second arcuate guide groove 16 by the first T-shaped limit seat 19, and the first arcuate guide groove 8 is smoothly connected to the opposite side of the second arcuate guide groove 16. In order to improve the stability of the second reduction motor 20, the second reduction motor 20 is partially embedded in the first arcuate guide groove 8 or the second arcuate guide groove 16, and the connection between the first arcuate guide groove 8 and the second arcuate guide groove 16 is smoothed.

[0052] On the opposite sides of the first arc-shaped gear ring 9 and the second arc-shaped gear ring 15, there are arranged a first auxiliary arc-shaped gear ring 7 and a second auxiliary arc-shaped gear ring 17 that are symmetrical to each other, and on the back of the first auxiliary arc-shaped gear ring 7 and the second auxiliary arc-shaped gear ring 17, there are arranged a first auxiliary arc-shaped guide groove 6 and a second auxiliary arc-shaped guide groove 18; the first auxiliary arc-shaped guide groove 6 and the second auxiliary arc-shaped guide groove 18 are respectively provided with a second T-shaped limit seat and a third T-shaped limit seat, the second T-shaped limit seat and the third T-shaped limit seat are respectively installed on the back of the third reduction motor and the fourth reduction motor, the output shafts of the third reduction motor and the fourth reduction motor are respectively provided with a second gear and a third gear, and the output shaft ends of the third reduction motor and the fourth reduction motor are both provided with a fourth magnet, and the fourth magnets are connected to the output shaft through bearings.

[0053] When the second reduction motor 20 drives the first gear 22 to drive the hinged end of the first scraper 11 and the second scraper 13 to rotate to the end of the first arc-shaped gear ring 9 or the second arc-shaped gear ring 15, the second magnet on the back of the second scraper 13 or the first scraper 11 is attracted to the two fourth magnets respectively, and the third reduction motor or the fourth reduction motor drives the second gear or the third gear to pull the second scraper 13 or the first scraper 11 to rotate in an arc with the hinge pin as the center to the slope surface of the first slope 5. At this point, the adjustment of the scraper position is completed.

[0054] In order to prevent the first scraper 11 or the second scraper 13 from being offset at one end located at the trough of the first slope 5 and the second slope 12 when the second reduction motor 20 rotates along the first arc-shaped gear ring 9 or the second arc-shaped gear ring 15, concentric first arc-shaped traction grooves 10 and second arc-shaped traction grooves 14 are respectively arranged below the first arc-shaped guide groove 8 and the second arc-shaped guide groove 16, and fourth T-shaped limit seats 23 are respectively arranged in the first arc-shaped traction groove 10 and the second arc-shaped traction groove 14, and fifth magnets are arranged at the end of the fourth T-shaped limit seat 23; in the initial stage, the two second magnets are attracted to the two fifth magnets respectively. At this time, the fourth T-shaped limit seat 23, the first T-shaped limit seat 19 and the first scraper 11 or the second scraper 13 form two concentric arcs. When the second reduction motor 20 drives the first gear 22 to drive the hinged ends of the first scraper 11 and the second scraper 13 to rotate, the fourth T-shaped limit seat 23 moves along the first arc-shaped traction groove 10 or the second arc-shaped traction groove 14, that is, the first scraper 11 or the second scraper 13 rotates around the valley, and the first scraper 11 and the second scraper 13 do not move with the second reduction motor 20.

[0055] In another way, the free ends of the first scraper blade and the second scraper blade are respectively provided with a sixth magnet, and correspondingly, two mutually symmetrical seventh magnets that cooperate with the sixth magnet are provided on the rear wall. The two seventh magnets are connected to the rear wall through a connecting rod and are located at the trough of the first slope 5 and the second slope 12.

[0056] In this embodiment, the driving wheel 25 and the driven wheel 27 can be gears or ordinary wheels. When gears are used, teeth that mesh with the gears are provided in the slideway. First, the driving wheel 25 is driven to slide in the slideway by the first reduction motor 24. The repulsive force between the first magnet and the third magnet 21, and the attractive force between the second magnet and the fifth magnet, disappears. The scraper moves along the second slope 12, clearing the sediment deposited on the slope to the side of the front wall. It is then connected to a negative pressure device (using an existing device, which will not be described in detail here), which sucks out the sediment and part of the mine, completing the cleaning of the inclined plate regulating sedimentation tank 1. Although there is a certain gap between the scraper and the rear wall, as long as most of the sediment on the slope is cleared, it can be used again without affecting the sedimentation effect. Example 3

[0057] On the basis of Example 1 and Example 2, the softening coagulation sedimentation tank 2 is improved, such as Figure 9As shown, a first settling tower 203 is installed inside the softening coagulation sedimentation tank 2, and a second settling tower 202 is wrapped around the outside of the first settling tower 203. The first settling tower 203 is connected to the inner wall of the second settling tower 202 via multiple support columns, and the first settling tower 203 is suspended inside the second settling tower 202. A first liquid discharge cap 207 is installed on the top of the first settling tower 203, and a second liquid discharge cap 206 is installed at the bottom of the second settling tower 202. The bottom of the second liquid discharge cap 206 is installed in the arc groove of the stabilizing seat on the bottom wall of the softening coagulation sedimentation tank 2. The top and sides of the second liquid discharge cap 206 are connected to the softening coagulation sedimentation tank 2 by tie rods, and the outside of the tie rods are equipped with buffer springs. Between the outer wall of the second settling tower and the softening coagulation sedimentation tank 2 is the flocculation sedimentation area 201.

[0058] A softener, such as one or two of lime, soda ash, caustic soda, gypsum, etc., is added into the first precipitation tower 203; a coagulant, such as one or two of polyaluminum chloride, polyferric sulfate, and polyacrylamide, is added between the outer wall of the first precipitation tower 203 and the inner wall of the second precipitation tower 202.

[0059] The softener in the first sedimentation tower 203 reacts to convert the calcium and magnesium hardness in the water into particulate matter, which then enters the second sedimentation zone from top to bottom. The coagulant in the second sedimentation zone causes the colloids and fine suspended matter in the mineral water to form flocs, which finally enter the sedimentation zone from bottom to top to complete the sedimentation and separation of the flocs, thereby removing the calcium and magnesium hardness, colloids and fine suspended matter.

[0060] In order to better achieve the sedimentation of flocs and particulate matter, multiple groups of first sedimentation cones 204 with bell mouths facing downward are arranged on the outer wall of the second sedimentation tower 202, and multiple groups of second sedimentation cones 205 with bell mouths facing upward are arranged on the inner wall of the softening coagulation sedimentation tank 2. Each layer of the second sedimentation cones 205 is located above each layer of the first sedimentation cones 204, and cooperates with the first sedimentation cones 204 to form a "Z"-shaped water channel.

[0061] The unique water passage formed by the cooperation of the first sedimentation cone 204 and the second sedimentation cone 205 allows the mineral water to sequentially touch the inclined walls of the first sedimentation cone 204 and the second sedimentation cone 205, thus completing two steps of sedimentation, thereby improving the sedimentation efficiency of flocs, i.e., particulate matter.

[0062] like Figure 10 As shown, in order to facilitate the cleaning of the sediment in the flocculation sedimentation area 201, the bottom of the softening coagulation sedimentation tank 2 is improved, and a frustum-shaped stabilizing seat is provided along the center of the bottom wall of the softening coagulation sedimentation tank 201. The top of the stabilizing seat is an arc-shaped groove, and the second sedimentation tower 202 is located in the arc-shaped groove.

[0063] Then, a circle of inclined surfaces is set around the cone, sloping from top to bottom and from outside to inside, with an angle of 60 degrees between the inclined surface and the cone. The flocs settle on the inclined wall and inclined surface of the cone and slide down the inclined surface to the chamfer between the two. In order to clean the sediment on the inclined surface, cone wall and chamfer, a V-shaped scraper 28 is set in the chamfer. A fifth reduction motor 29 is installed at the angle of the V-shaped scraper 28. The output shaft of the fifth reduction motor 29 is connected to a worm 30, which meshes with a worm gear 31 below it. The worm gear 31 is installed on a rotating column 32, and two symmetrical pulleys 33 are set on the rotating shaft 32. The two pulleys 33 are located on both sides of the worm gear 31. The two ends of the rotating column 32 are movably connected to the vertical plate 34. The vertical plate 34 is fixed on the side wall of the V-shaped scraper 28. The bottom of the two pulleys 33 is located in the annular slide rail on the chamfer, which is convenient for driving the V-shaped scraper 28 to move along the track.

[0064] At the same time, a pumping hole is opened on the side wall of the softening coagulation sedimentation tank 2 and connected to the pumping device. When the V-shaped scraper 28 gathers the sediment together, the pump is turned on to pump out the sediment and wastewater inside, thereby completing the cleaning of the inside of the softening coagulation sedimentation tank 2. This structure integrates sedimentation and cleaning in one, and is suitable for underground mine water treatment.

[0065] The effluent from the softening coagulation sedimentation tank is pressurized by a pipeline pump and enters a pipeline mixer, into which oxidants such as ozone, chlorine, and hydrogen peroxide are added. On the one hand, organic nitrogen is oxidized into ammonia nitrogen, and on the other hand, microorganisms in the mine water are killed.

[0066] Zeolite filter 3 is filled with zeolite, which removes ammonia and nitrogen from mine water through its unique adsorption properties and also acts as a filter. Part of the effluent is directly used for dust removal in the mine, while the majority is lifted to the surface for reuse after membrane treatment.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-mineralization mine water pretreatment system, characterized in that: It includes an inclined plate regulating sedimentation tank, a softening coagulation sedimentation tank and a zeolite filter connected end to end, wherein the softening coagulation sedimentation tank is connected to the zeolite filter through a pipeline pump and a pipeline mixer; The interior of the inclined plate regulating sedimentation tank is divided into a sedimentation area and a water collection area by a baffle. A high-efficiency sedimentation bin is set above the sedimentation area, and a sedimentation slope is set below it, and a scraper is set on the sedimentation slope; The sedimentation slope includes two first slopes arranged opposite to each other, a second slope is arranged between the two first slopes, and the bottoms of the two slopes of the second slope are both against the bottoms of the two first slopes; The scraper blade includes a first scraper blade and a second scraper blade. The first scraper blade and the second scraper blade are both provided with a hinge joint on the top. The two hinge joints are aligned and connected by a pin shaft. The back of the pin shaft is provided with a first magnet. In the initial stage, the first scraper blade and the second scraper blade are respectively located on the two inclined surfaces of the second slope. A first reduction motor is provided at the center position of the back side of the first scraper, a driving wheel is provided on the output shaft of the first reduction motor, a driven wheel is provided on the back side of the second scraper, the driven wheel is connected to the vertical plate through a rotating shaft, the vertical plate is fixed at the center position of the second scraper, a second magnet is provided on the back side of the vertical plate and the first reduction motor, slideways matching the driving wheel and the driven wheel are provided on the first slope and the second slope, and a guide mechanism for pulling the first scraper and the second scraper to flip is provided on the rear wall of the inclined plate adjustment sedimentation tank.

2. A high-mineralization mine water pretreatment system according to claim 1, characterized in that: The high-efficiency sedimentation bin is placed on the channel steel, and the two ends of the channel steel are connected to the front and rear walls of the inclined plate adjustment sedimentation tank. The high-efficiency sedimentation bin includes multiple parallel partitions, and reciprocating S-shaped inclined tubes are arranged between adjacent partitions. The troughs and crests of the S-shaped inclined tubes are respectively connected to adjacent partitions, and the troughs and crests of two adjacent S-shaped inclined tubes are opposite to each other.

3. A high-mineralization mine water pretreatment system according to claim 1, characterized in that: The guide mechanism includes a first arc-shaped gear ring and a second arc-shaped gear ring that are symmetrically arranged. The first arc-shaped gear ring and the second arc-shaped gear ring are connected to the rear wall through a column. A second reduction motor is provided at a smooth connection between opposite sides of the first arc-shaped gear ring and the second arc-shaped gear ring. A first gear is provided on the output shaft of the second reduction motor, and a third magnet is connected to the end of the output shaft through a bearing. The first gear is driven by the second reduction motor to rotate on the first arc-shaped gear ring and the second arc-shaped gear ring. The back side of the second reduction motor is limited in the first arc guide groove or the second arc guide groove by the first T-shaped limiting seat, and the first arc guide groove is smoothly connected to the opposite side of the second arc guide groove.

4. A high-mineralization mine water pretreatment system according to claim 3, characterized in that: A first auxiliary arc-shaped gear ring and a second auxiliary arc-shaped gear ring are provided on opposite sides of the first arc-shaped gear ring and the second arc-shaped gear ring, and a first auxiliary arc-shaped guide groove and a second auxiliary arc-shaped guide groove are provided on the back sides of the first auxiliary arc-shaped gear ring and the second auxiliary arc-shaped gear ring; A second T-shaped limit seat and a third T-shaped limit seat are respectively provided in the first auxiliary arc guide groove and the second auxiliary arc guide groove. The second T-shaped limit seat and the third T-shaped limit seat are respectively installed on the back of the third reduction motor and the fourth reduction motor. The output shafts of the third reduction motor and the fourth reduction motor are respectively provided with a second gear and a third gear, and a fourth magnet is provided at the end of the output shaft of the third reduction motor and the fourth reduction motor.

5. A high-mineralization mine water pretreatment system according to claim 4, characterized in that: A concentric first arc-shaped traction groove and a second arc-shaped traction groove are respectively arranged below the first arc-shaped guide groove and the second arc-shaped traction groove, a fourth T-shaped limit seat is arranged in the first arc-shaped traction groove and the second arc-shaped traction groove, and a fifth magnet is arranged at the end of the fourth T-shaped limit seat; in the initial stage, the first magnet and the second magnet are respectively attracted to the two fifth magnets.

6. A high-mineralization mine water pretreatment system according to claim 1, characterized in that: A first sedimentation tower is provided inside the softening coagulation sedimentation tank, and a second sedimentation tower is wrapped around the outside of the first sedimentation tower. The first sedimentation tower is connected to the inner wall of the second sedimentation tower through multiple support columns, and the first sedimentation tower is suspended inside the second sedimentation tower. A first liquid discharge cap is provided on the top of the first sedimentation tower, and a second liquid discharge cap is provided at the bottom of the second sedimentation tower. The bottom of the second liquid discharge cap is installed in the arc groove of the stable seat on the bottom wall of the softening coagulation sedimentation tank; A softener is added into the first precipitation tower; and a coagulant is added between the outer wall of the first precipitation tower and the inner wall of the second precipitation tower.

7. A high-mineralization mine water pretreatment system according to claim 6, characterized in that: Multiple groups of first sedimentation cones with bell mouths facing downwards are arranged on the outer wall of the second sedimentation tower, and multiple groups of second sedimentation cones with bell mouths facing upwards are arranged on the inner wall of the softening coagulation sedimentation tank. Each layer of second sedimentation cones is located above each layer of first sedimentation cones, and cooperates with the first sedimentation cones to form a "Z"-shaped water channel.

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