CN115140819B - Device and method for treating coal mine acidic wastewater by utilizing coal gangue - Google Patents
Device and method for treating coal mine acidic wastewater by utilizing coal gangue Download PDFInfo
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- CN115140819B CN115140819B CN202210787524.4A CN202210787524A CN115140819B CN 115140819 B CN115140819 B CN 115140819B CN 202210787524 A CN202210787524 A CN 202210787524A CN 115140819 B CN115140819 B CN 115140819B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 60
- 239000003245 coal Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 27
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 15
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 15
- 239000004571 lime Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 5
- 239000010459 dolomite Substances 0.000 claims abstract description 5
- 239000008267 milk Substances 0.000 claims abstract description 5
- 210000004080 milk Anatomy 0.000 claims abstract description 5
- 235000013336 milk Nutrition 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 18
- 150000002500 ions Chemical class 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910001385 heavy metal Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000003116 impacting effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000009991 scouring Methods 0.000 claims 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 239000003513 alkali Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 24
- 239000002253 acid Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a device and a method for treating coal mine acidic wastewater by utilizing coal gangue, wherein the device comprises a treatment box which is a main coal mine acidic wastewater treatment mechanism of equipment, an alkali lime layer, a lime slaking layer, a calcium carbonate layer, a blast furnace slag layer, a dolomite layer and a lime milk layer are sequentially arranged in the treatment box from top to bottom, the upper end and the lower end of the treatment box are respectively provided with a wastewater inlet pipe and a wastewater discharge pipe, and the wastewater inlet pipe is positioned at the upper end of the wastewater discharge pipe; the mounting frame is positioned on the outer surface of the treatment box and is in sliding connection with the treatment box. According to the device and the method for treating the acidic wastewater of the coal mine by using the coal gangue, the shaking of the treatment box and the installation frame can be controlled by using the inertia and the scram of vertical lifting, the material layer inside the treatment box is impacted up and down by using rapid shaking, the material powder and the wastewater are mixed for treatment and purification, and the material layer can volatilize only when shaking, so that the self-treatment effect can be realized.
Description
Technical Field
The invention relates to the technical field of coal mine acidic wastewater treatment, in particular to a device and a method for treating coal mine acidic wastewater by utilizing coal gangue.
Background
The mine acid waste water is mainly formed by oxidizing the reductive sulfide minerals through air, precipitation and bacteria in the processes of mining, transportation, ore dressing, waste rock discharge, tailing storage and the like, and has the advantages of high water content, low pH value, high concentration sulfate and soluble heavy metal ions.
In the exploitation process of the coal mine, a large amount of acid waste water can be generated, the acid waste water is directly discharged to cause certain pollution to the environment, and the coal gangue has certain adsorptivity, so that the coal gangue is commonly used for adsorbing some ions in the acid waste water of the coal mine, but in the prior art, the coal gangue is generally used for adsorbing the ions in the waste water independently, and the waste water is treated by using the coal gangue independently, so that the treatment effect is poor. Based on the above pointed out problems, the invention designs a device and a method for treating coal mine acidic wastewater by using coal gangue, so as to solve the above mentioned problems.
Disclosure of Invention
The invention aims to provide a device and a method for treating acidic wastewater of a coal mine by utilizing coal gangue, which are used for solving the problems that the coal gangue is generally used independently for adsorbing ions in the wastewater, and the treatment effect is poor when the coal gangue is used independently for treating the wastewater.
In order to achieve the above purpose, the present invention provides the following technical solutions: a device and a method for treating coal mine acidic wastewater by utilizing coal gangue comprise the following steps:
s1, placing prefabricated gangue particles into equipment, filling the prefabricated gangue particles in the middle end position of a lime material layer, and distributing the prefabricated gangue particles in a ratio of 1:6;
s2, continuously impacting the coal gangue particles in the treatment box in an oscillating manner, wherein the up-and-down lifting times are 1min10 times, and the treatment box is ensured to be in a continuous lifting state;
s3, in the vertical lifting process, according to the special connection relation between the treatment box and the installation frame, the coal gangue particles are subjected to vibration treatment by a large margin again by using the inertia of the vertical lifting of the cooperation of the pressure spring and the spring plate, and the elastic range is as follows: sigma p is less than sigma 1 and sigma e, and the elastic distance is 10cm-15cm;
s4, introducing mineral acid water into the treatment box, sequentially impacting through the material layer and the gangue particles, mixing powder generated by collision and damage with wastewater, and ensuring that the pH value of the treated mineral acid water is between 5 and 7;
s5, carrying out neutralization chemical reaction on heavy metal ions in the wastewater and the material layer to form hydroxide precipitate, taking out the heavy metal ions in the water body, discharging the heavy metal ions from a wastewater discharge pipe, and flushing the hydroxide through purified water to discharge the hydroxide from a treatment box.
The treatment box is a main coal mine acidic wastewater treatment mechanism of equipment, an alkali lime layer, a stone ash eliminating layer, a calcium carbonate layer, a blast furnace slag layer, a dolomite layer and a lime milk layer are sequentially arranged in the treatment box from top to bottom, a wastewater inlet pipe and a wastewater discharge pipe are respectively arranged at the upper end and the lower end of the treatment box, and the wastewater inlet pipe is positioned at the upper end of the wastewater discharge pipe;
the installation frame is positioned on the outer surface of the treatment box and is in sliding connection with the treatment box, a sliding groove and a positioning groove are respectively preset in the installation frame, and the positioning grooves are symmetrically distributed at the upper end and the lower end of the sliding groove;
the bottom frame is positioned at the bottom end of the treatment box, a first linkage plate and a second linkage plate are arranged on the top surface of the bottom frame, and the first linkage plate, the second linkage plate and the bottom frame form a sliding structure;
the gear motor is positioned in the underframe, the output end of the gear motor is connected with a driving gear, the outer surface of the driving gear is connected with a reduction gear in a meshed mode, and the middle end of the reduction gear is connected with a first rotating shaft.
As a preferable technical scheme of the invention, a movable connecting rod is arranged between the first linkage plate and the mounting frame, the front end and the rear end of the movable connecting rod are respectively provided with a rotating seat, and the movable connecting rod forms a rotating structure with the first linkage plate, the second linkage plate and the mounting frame through the rotating seats.
By adopting the technical scheme, the first linkage plate and the second linkage plate support the mounting frame and the processing box through the movable connecting rod, and are linked, and the movable connecting rod is used for processing the angle problem of the mounting frame and the first linkage plate and the second linkage plate through the rotating seat, so that the first linkage plate and the second linkage plate are in transverse and longitudinal movement with the mounting frame.
As a preferable technical scheme of the invention, the top end of the underframe is provided with the supporting plates, the supporting plates are distributed in a mirror image mode relative to the center point of the mounting frame, the inner surfaces of the supporting plates are symmetrically provided with the guide rails, and the supporting plates and the mounting frame form a sliding structure through the guide rails.
By adopting the technical scheme, the underframe supports the mounting frame in an auxiliary way through the supporting plates, and guides the vertical movement of the mounting frame by matching with the guide rail, so that the treatment box connected with the inside of the mounting frame can synchronously and vertically lift.
As a preferable technical scheme of the invention, the opposite surface of the first rotating shaft is provided with a second rotating shaft, a transmission chain is connected between the second rotating shaft and the first rotating shaft, and the first rotating shaft and the second rotating shaft are of the same structure.
By adopting the technical scheme, the first rotating shaft and the second rotating shaft realize synchronous linkage through the transmission chain, and the transmission structures connected with the first rotating shaft and the second rotating shaft are the same, and the two groups of first linkage plates and second linkage plates are respectively subjected to linkage treatment, so that the stability of transmission stress is ensured.
As a preferable technical scheme of the invention, the top surface of the first rotating shaft is provided with a linkage gear, and the linkage gear is in meshed connection with the first linkage plate and the second linkage plate.
By adopting the technical scheme, the first rotating shaft is in meshed transmission with the first linkage plate and the second linkage plate through the arranged movable gear, so that the relative direction horizontal movement of the first linkage plate and the second linkage plate can be controlled, the vertical movement control of the mounting frame and the treatment box is realized by matching with the movable connecting rod, the shaking of the treatment box and the mounting frame can be controlled by utilizing the inertia and the scram of the vertical lifting, the rapid shaking is utilized, the material layer inside the treatment box is impacted up and down, the material powder and the wastewater are mixed, and the material layer can volatilize only when shaking, so that the self-treatment effect can be realized.
As the preferable technical scheme of the invention, the upper end and the lower end of the treatment box are respectively provided with a sealing plate, the connecting ends of the sealing plates and the treatment box are provided with connecting pieces, the connecting pieces and the sealing plates are of an integrated structure, and the connecting pieces are in threaded connection with the treatment box.
By adopting the technical scheme, the processing box and the sealing plate are provided with the connecting piece to ensure the tightness of the connecting end, and the processing box is convenient to detach, convenient to replace an internal material layer, convenient to maintain an internal structure, and therefore the overall maneuverability is increased.
As the preferable technical scheme of the invention, the left and right ends of the treatment box are symmetrically provided with the movable plates, the outer surface of one end of each movable plate is provided with the buffer block, the buffer block is movably connected with the positioning groove, the spring plates are preset in the positioning groove, and the spring plates and the buffer blocks form a buffer structure.
Adopt above-mentioned technical scheme, fly leaf is at the in-process of vertical lift, corresponds with the constant head tank through the buffer block and is connected, can lead to the removal of processing case and installing frame to inside slip through buffer block and constant head tank, constant head tank one end is solid, through the atmospheric pressure that slides and produce, and cooperates the spring board, can reduce the striking wearing and tearing that cause processing case and installing frame transmission, reduces the noise that the transmission produced, improves equipment transmission's cushioning effect.
As a preferable technical scheme of the invention, a guide rod is arranged in the installation frame, the guide rod is in sliding connection with the movable plate, a pressure spring is arranged between the movable plate and the installation frame, and the pressure spring is in sliding connection with the guide rod.
By adopting the technical scheme, when the guide rod and the positioning groove guide the movable plate, the guide rod and the positioning groove are matched with the pressure spring to link the treatment box, so that the treatment box can vibrate inside the mounting frame rapidly, the support is stable, the treatment effect is improved, and the overall functionality is increased.
Compared with the prior art, the invention has the beneficial effects that: the device and the method for treating the acidic wastewater of the coal mine by using the coal gangue comprise the following steps:
1. the shaking of the treatment box and the mounting frame can be controlled by utilizing the inertia and sudden stop of vertical lifting, the material layer in the treatment box is impacted up and down by utilizing rapid shaking, the material powder and the wastewater are mixed for treatment and purification, and the material layer can be volatilized only when shaking, so that the self-treatment effect can be realized;
2. the fly leaf is at the in-process of vertical lift, corresponds with the constant head tank through the buffer block and is connected, can lead to the removal of processing case and installing frame to through buffer block and inside slip of constant head tank, constant head tank one end is solid, through the atmospheric pressure that slides and produce, and cooperates the spring board, can reduce the striking wearing and tearing that cause processing case and installing frame transmission, reduce the produced noise of transmission, improve equipment driven cushioning effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a treatment tank according to the present invention;
FIG. 2 is a schematic cross-sectional elevation view of the chassis of the present invention;
FIG. 3 is a schematic top view of the interior of the chassis of the present invention;
FIG. 4 is a schematic diagram of the front view of the interior of the treatment tank of the present invention;
FIG. 5 is a schematic top view of the treatment tank of the present invention;
fig. 6 is a schematic top view of the first shaft and the second shaft of the present invention.
In the figure: 1. a treatment box; 2. a mounting frame; 3. a supporting plate; 4. a guide rail; 5. a chassis; 6. a moving connecting rod; 7. a rotating seat; 8. a waste water inlet pipe; 9. a waste water drain; 10. a first linkage plate; 11. a second linkage plate; 12. a first rotating shaft; 13. a reduction gear; 14. a speed reducing motor; 15. a drive gear; 16. a drive chain; 17. a linkage gear; 18. a second rotating shaft; 19. a sealing plate; 20. a connecting piece; 21. an alkali lime layer; 22. a stone ash removing layer; 23. a calcium carbonate layer; 24. a blast furnace slag layer; 25. a dolomitic stone layer; 26. lime cream layer; 27. a chute; 28. a movable plate; 29. a guide rod; 30. a pressure spring; 31. a buffer block; 32. a positioning groove; 33. and (3) a spring plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: a device and a method for treating coal mine acidic wastewater by utilizing coal gangue comprise the following steps:
s1, placing prefabricated gangue particles into equipment, filling the prefabricated gangue particles in the middle end position of a lime material layer, and distributing the prefabricated gangue particles in a ratio of 1:6;
s2, continuously impacting the coal gangue particles in the treatment box 1 in an oscillating manner, wherein the up-and-down lifting times are 1min10 times, and the treatment box 1 is ensured to be in a continuous lifting state;
s3, in the vertical lifting process, according to the special connection relation between the treatment box 1 and the installation frame 2, the compression spring 30 and the spring plate 33 are matched with the inertia of the vertical lifting, and the gangue particles are subjected to large-amplitude vibration treatment again, so that the elastic range is as follows: sigma p is less than sigma 1 and sigma e, and the elastic distance is 10cm-15cm;
s4, introducing mineral acid water into the treatment box 1, sequentially impacting the material layer and the gangue particles, mixing powder generated by collision and damage with wastewater, and ensuring the pH value of the treated mineral acid water to be between 5 and 7;
s5, carrying out neutralization chemical reaction on heavy metal ions in the wastewater and the material layer to form hydroxide precipitate, taking out the heavy metal ions in the water body, discharging the heavy metal ions from the wastewater discharge pipe 9, and flushing the hydroxide through purified water to discharge the hydroxide from the treatment box 1.
The treatment box 1 is a main coal mine acidic wastewater treatment mechanism of equipment, an alkali lime layer 21, a slaked lime layer 22, a calcium carbonate layer 23, a blast furnace slag layer 24, a dolomite layer 25 and a lime milk layer 26 are sequentially arranged in the treatment box 1 from top to bottom, a wastewater inlet pipe 8 and a wastewater discharge pipe 9 are respectively arranged at the upper end and the lower end of the treatment box 1, and the wastewater inlet pipe 8 is positioned at the upper end of the wastewater discharge pipe 9; the installation frame 2 is positioned on the outer surface of the treatment box 1, the installation frame 2 is in sliding connection with the treatment box 1, a sliding groove 27 and a positioning groove 32 are respectively preset in the installation frame 2, and the positioning grooves 32 are symmetrically distributed at the upper end and the lower end of the sliding groove 27; the bottom frame 5 is positioned at the bottom end of the treatment box 1, a first linkage plate 10 and a second linkage plate 11 are arranged on the top surface of the bottom frame 5, and the first linkage plate 10 and the second linkage plate 11 and the bottom frame 5 form a sliding structure; the gear motor 14 is positioned in the underframe 5, the output end of the gear motor 14 is connected with a driving gear 15, the outer surface of the driving gear 15 is connected with a reduction gear 13 in a meshed manner, and the middle end of the reduction gear 13 is connected with a first rotating shaft 12.
A movable connecting rod 6 is arranged between the first linkage plate 10 and the second linkage plate 11 and the mounting frame 2, the front end and the rear end of the movable connecting rod 6 are respectively provided with a rotating seat 7, and the movable connecting rod 6 forms a rotating structure with the first linkage plate 10, the second linkage plate 11 and the mounting frame 2 through the rotating seats 7; the first linkage plate 10 and the second linkage plate 11 support the mounting frame 2 and the processing box 1 through the movable connecting rod 6, and are linked, the movable connecting rod 6 processes the angle problem of the mounting frame 2 and the first linkage plate 10 and the second linkage plate 11 through the rotating seat 7, so that the first linkage plate 10 and the second linkage plate 11 move in the transverse and longitudinal directions with the mounting frame 2.
The top end of the underframe 5 is provided with a supporting plate 3, the supporting plate 3 is distributed in mirror image about the central point of the mounting frame 2, the inner surface of the supporting plate 3 is symmetrically provided with guide rails 4, and the supporting plate 3 and the mounting frame 2 form a sliding structure through the guide rails 4; the underframe 5 supports the mounting frame 2 in an auxiliary manner by arranging the supporting plates 3 and guides the vertical movement of the mounting frame 2 by matching with the guide rail 4, so that the treatment box 1 connected with the inside of the mounting frame 2 can synchronously and vertically lift.
The opposite surface of the first rotating shaft 12 is provided with a second rotating shaft 18, a transmission chain 16 is connected between the second rotating shaft 18 and the first rotating shaft 12, and the first rotating shaft 12 and the second rotating shaft 18 have the same structure; the first rotating shaft 12 and the second rotating shaft 18 realize synchronous linkage through the transmission chain 16, and the transmission structures connected with the first rotating shaft 12 and the second rotating shaft 18 are the same, and the two groups of the first linkage plate 10 and the second linkage plate 11 are respectively subjected to linkage treatment, so that the stability of transmission stress is ensured.
The top surface of the first rotating shaft 12 is provided with a linkage gear 17, and the linkage gear 17 is in meshed connection with the first linkage plate 10 and the second linkage plate 11; the first rotating shaft 12 is in meshed transmission with the first linkage plate 10 and the second linkage plate 11 through the arranged movable gear 17, so that the first linkage plate 10 and the second linkage plate 11 can be controlled to horizontally move in the opposite direction, the vertical movement control of the mounting frame 2 and the processing box 1 is realized by matching with the movable connecting rod 6, the shaking of the processing box 1 and the mounting frame 2 can be controlled by utilizing the inertia and the scram of the vertical lifting, the material layer inside the processing box 1 is impacted up and down by utilizing the rapid shaking, the material powder and the wastewater are mixed, and the material layer can volatilize only when shaking, so that the self-treatment effect can be realized.
Sealing plates 19 are arranged at the upper end and the lower end of the treatment box 1, a connecting piece 20 is arranged at the connecting end of the sealing plate 19 and the treatment box 1, the connecting piece 20 and the sealing plate 19 are of an integrated structure, and the connecting piece 20 is in threaded connection with the treatment box 1; the treatment box 1 and the sealing plate 19 are provided with the connecting piece 20 to ensure the tightness of the connecting end, and the disassembly is convenient, the replacement of the inner material layer is convenient, the maintenance of the inner structure is convenient, and the overall maneuverability is increased.
The left end and the right end of the treatment box 1 are symmetrically provided with movable plates 28, the outer surface of one end of each movable plate 28 is provided with a buffer block 31, the buffer blocks 31 are movably connected with a positioning groove 32, a spring plate 33 is pre-arranged in the positioning groove 32, and the spring plate 33 and the buffer blocks 31 form a buffer structure; the fly leaf 28 is at the in-process of vertical lift, corresponds with the constant head tank 32 through buffer block 31 and is connected, can lead the removal of processing case 1 and installing frame 2 to through buffer block 31 and the inside slip of constant head tank 32, constant head tank 32 one end is solid, through the atmospheric pressure that slides and produce, and cooperate spring plate 33, can reduce the impact wearing and tearing that cause processing case 1 and installing frame 2 transmission, reduce the noise that the transmission produced, improve the buffer effect of equipment transmission.
A guide rod 29 is arranged in the mounting frame 2, the guide rod 29 is in sliding connection with the movable plate 28, a pressure spring 30 is arranged between the movable plate 28 and the mounting frame 2, and the pressure spring 30 is in sliding connection with the guide rod 29; the guide rod 29 and the positioning groove 32 guide the movable plate 28 and are matched with the pressure spring 30 to link the treatment box 1, so that the treatment box 1 can vibrate inside the mounting frame 2 rapidly, the support is stable, the treatment effect is improved, and the overall functionality is increased.
Working principle: when the device and the method for treating the acidic wastewater of the coal mine by using the coal gangue are used, the wastewater is firstly discharged into the treatment box 1 from the wastewater inlet pipe 8, and is sequentially subjected to purification treatment by the alkali lime layer 21, the slaked lime layer 22, the calcium carbonate layer 23, the blast furnace slag layer 24, the dolomite layer 25 and the lime milk layer 26, the wastewater inlet pipe 8 and the wastewater discharge pipe 9 are corrugated pipes, the length is adjustable, when the treatment box 1 moves in the vertical direction, the self-adaptive deformation can be realized, the gear motor 14 is started to drive the gear 15, the gear 15 is meshed with the gear 13 for transmission, the first rotating shaft 12 and the second rotating shaft 18 realize synchronous linkage through the transmission chain 16, the transmission structures connected with the first rotating shaft 12 and the second rotating shaft 18 are the same, the two groups of first linkage plates 10 and the second linkage plates 11 are respectively subjected to linkage treatment, and the stability of transmission stress is ensured, the first linkage plate 10 and the second linkage plate 11 support the mounting frame 2 and the processing box 1 through the movable connecting rod 6, and are linked, the movable connecting rod 6 processes the angle problem of the mounting frame 2 and the first linkage plate 10 and the second linkage plate 11 through the rotating seat 7, so that the first linkage plate 10 and the second linkage plate 11 move along the transverse and longitudinal directions with the mounting frame 2, the underframe 5 supports the mounting frame 2 through the supporting plate 3, guides the vertical movement of the mounting frame 2 through the matched guide rail 4, enables the processing box 1 connected with the inside of the mounting frame 2 to synchronously and vertically lift, the first rotating shaft 12 is meshed and transmitted with the first linkage plate 10 and the second linkage plate 11 through the arranged movable gear 17, can control the relative direction horizontal movement of the first linkage plate 10 and the second linkage plate 11, and realizes the vertical movement control of the mounting frame 2 and the processing box 1 through the matched movable connecting rod 6, utilize the inertia and the scram of vertical lift, can control the rocking of processing case 1 and installing frame 2, utilize quick rocking, make the inside material layer of processing case 1 strike from top to bottom, and carry out mixed treatment purification with material powder and waste water, only when rocking, just can make the material layer volatilize, thereby can realize from the treatment effect, processing case 1 and closing plate 19 set up connecting piece 20 in order to guarantee the leakproofness of link, and it is convenient to dismantle, be convenient for change the inside material layer, be convenient for maintain inner structure, thereby holistic mobility has been increased, movable plate 28 is in the in-process of vertical lift, correspond with constant head tank 32 through buffer 31, can lead to the removal of processing case 1 and installing frame 2, and slide through buffer 31 and constant head tank 32 inside, constant head tank 32 one end is solid, through the atmospheric pressure that slides and cooperate spring plate 33, can reduce the striking that causes processing case 1 and installing frame 2 transmission, reduce the noise that the transmission produced, improve equipment transmission's buffer effect, guide bar 29 carries out guide plate 28 to movable plate 28 simultaneously, it is to carry out the guide to the stable processing case 2, thereby the inside vibration effect is stable to the processing case 1, and the inside vibration effect is improved, and the vibration of the inside is stable and the frame is carried out 2.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The method for treating the acidic wastewater of the coal mine by using the coal gangue is characterized by comprising the following steps of:
s1, placing prefabricated gangue particles into equipment, filling the prefabricated gangue particles in the middle end position of a lime material layer, and distributing the prefabricated gangue particles in a ratio of 1:6;
s2, continuously impacting the coal gangue particles in the treatment box (1) in an oscillating manner, wherein the up-and-down lifting times are 1min10 times, and the treatment box (1) is ensured to be in a continuous lifting state;
s3, in the vertical lifting process, according to the special connection relation between the treatment box (1) and the mounting frame (2), the compression spring (30) and the spring plate (33) are matched with the inertia of the vertical lifting, and the gangue particles are subjected to large-amplitude vibration treatment again, so that the elastic range is: sigma p is less than sigma 1 and sigma e, and the elastic distance is 10cm-15cm;
s4, introducing the coal mine acidic wastewater into the treatment box (1), sequentially impacting through the material layer and the coal gangue particles, and mixing powder generated by collision and damage with the wastewater to ensure that the pH value of the treated coal mine acidic wastewater is between 5 and 7;
s5, carrying out neutralization chemical reaction on heavy metal ions in the wastewater and a material layer to form hydroxide precipitate, taking out the heavy metal ions in the water body, and discharging the heavy metal ions from a wastewater discharge pipe (9), wherein equipment adopted by the method comprises a treatment box (1), and discharging the hydroxide from the treatment box (1) through water purification scouring;
the treatment box (1) is a coal mine acidic wastewater treatment mechanism mainly used for equipment, a soda lime layer (21), a slaked lime layer (22), a calcium carbonate layer (23), a blast furnace slag layer (24), a dolomite layer (25) and a lime milk layer (26) are sequentially arranged in the treatment box (1) from top to bottom, a wastewater inlet pipe (8) and a wastewater discharge pipe (9) are respectively arranged at the upper end and the lower end of the treatment box (1), and the wastewater inlet pipe (8) is positioned at the upper end of the wastewater discharge pipe (9);
the installation frame (2) is positioned on the outer surface of the treatment box (1), the installation frame (2) is in sliding connection with the treatment box (1), a sliding groove (27) and a positioning groove (32) are respectively preset in the installation frame (2), and the positioning grooves (32) are symmetrically distributed at the upper end and the lower end of the sliding groove (27);
the bottom frame (5) is positioned at the bottom end of the treatment box (1), a first linkage plate (10) and a second linkage plate (11) are arranged on the top surface of the bottom frame (5), and the first linkage plate (10) and the second linkage plate (11) and the bottom frame (5) form a sliding structure;
the speed reducing motor (14) is positioned in the underframe (5), the output end of the speed reducing motor (14) is connected with a driving gear (15), the outer surface of the driving gear (15) is connected with a speed reducing gear (13) in a meshed manner, and the middle end of the speed reducing gear (13) is connected with a first rotating shaft (12);
sealing plates (19) are arranged at the upper end and the lower end of the treatment box (1), connecting pieces (20) are arranged at the connecting ends of the sealing plates (19) and the treatment box (1), the connecting pieces (20) and the sealing plates (19) are of an integrated structure, and the connecting pieces (20) are in threaded connection with the treatment box (1);
the treatment box is characterized in that movable plates (28) are symmetrically arranged at the left end and the right end of the treatment box (1), a buffer block (31) is arranged on the outer surface of one end of the movable plate (28), the buffer block (31) is movably connected with a positioning groove (32), a spring plate (33) is preset in the positioning groove (32), and the spring plate (33) and the buffer block (31) form a buffer structure;
a guide rod (29) is arranged in the mounting frame (2), the guide rod (29) is in sliding connection with the movable plate (28), a pressure spring (30) is arranged between the movable plate (28) and the mounting frame (2), and the pressure spring (30) is in sliding connection with the guide rod (29);
a movable connecting rod is arranged between the first linkage plate (10) and the second linkage plate (11) and the mounting frame (2), rotating seats (7) are arranged at the front end and the rear end of each movable connecting rod, and the two movable connecting rods, the first linkage plate (10), the second linkage plate (11) and the mounting frame (2) form a rotating structure through the rotating seats (7);
the top surface of the first rotating shaft (12) is provided with a linkage gear (17), and the linkage gear (17) is in meshed connection with the first linkage plate (10) and the second linkage plate (11).
2. The method for treating acidic wastewater in coal mines by utilizing coal gangue as claimed in claim 1, wherein the method comprises the following steps: the top of chassis (5) is provided with fagging (3), fagging (3) are about installing frame (2) central point mirror image distribution, fagging (3) internal surface symmetric distribution has guide rail (4), fagging (3) constitute sliding construction through guide rail (4) and installing frame (2).
3. The method for treating acidic wastewater in coal mines by utilizing coal gangue as claimed in claim 1, wherein the method comprises the following steps: the first rotating shaft (12) is provided with a second rotating shaft (18) on the opposite face, a transmission chain (16) is connected between the second rotating shaft (18) and the first rotating shaft (12), and the first rotating shaft (12) and the second rotating shaft (18) are of the same structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210787524.4A CN115140819B (en) | 2022-07-06 | 2022-07-06 | Device and method for treating coal mine acidic wastewater by utilizing coal gangue |
| ZA2023/00644A ZA202300644B (en) | 2022-07-06 | 2023-01-16 | Device and method for treating acid wastewater from coal mines by using coal gangue |
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| CN202210787524.4A CN115140819B (en) | 2022-07-06 | 2022-07-06 | Device and method for treating coal mine acidic wastewater by utilizing coal gangue |
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| ZA202300644B (en) | 2023-02-22 |
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