CN115140819A - Device and method for treating coal mine acidic wastewater by using coal gangue - Google Patents
Device and method for treating coal mine acidic wastewater by using coal gangue Download PDFInfo
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- CN115140819A CN115140819A CN202210787524.4A CN202210787524A CN115140819A CN 115140819 A CN115140819 A CN 115140819A CN 202210787524 A CN202210787524 A CN 202210787524A CN 115140819 A CN115140819 A CN 115140819A
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- 239000003245 coal Substances 0.000 title claims abstract description 64
- 239000002351 wastewater Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 22
- 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
- 239000002253 acid Substances 0.000 claims abstract description 13
- 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
- 239000003513 alkali Substances 0.000 claims abstract description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 6
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 6
- 229910000514 dolomite Inorganic materials 0.000 claims abstract description 6
- 239000010459 dolomite Substances 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 6
- 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 25
- 239000002245 particle Substances 0.000 claims description 16
- 150000002500 ions Chemical class 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910001385 heavy metal Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 235000010755 mineral Nutrition 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000006071 cream Substances 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000746 purification Methods 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
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
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Classifications
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- 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 acid wastewater by utilizing coal gangue, which comprises a treatment box, wherein the treatment box is a coal mine acid wastewater treatment mechanism which is mainly used as equipment, an alkali lime layer, a slaked lime layer, a calcium carbonate layer, a blast furnace slag layer, a dolomite layer and a lime cream 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; a mounting frame located on an outer surface of the treatment tank, the installing frame is connected with the processing box in a sliding mode. 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 emergency stop of vertical lifting, the material layer in the treatment box is impacted up and down by using quick shaking, the material powder and the wastewater are mixed, treated and purified, and the material layer can volatilize only when the material layer is shaken, 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 using coal gangue.
Background
The acid mine waste water is mainly formed by the oxidation of 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 larger water content, lower pH value and high-concentration sulfate and soluble heavy metal ions.
In the exploitation in-process in the colliery, can produce a large amount of acid waste water, these acid waste water directly discharge and can cause certain pollution to the environment, and the coal gangue has certain adsorptivity, consequently is often used for adsorbing some ions in the acid waste water in colliery, but among the prior art, the coal gangue generally all is that the exclusive use adsorbs the ion in the waste water, and the exclusive use coal gangue is handled waste water, and the treatment effect is relatively poor. Based on the problems, the invention designs a device and a method for treating coal mine acid wastewater by using coal gangue, so as to solve the problems.
Disclosure of Invention
The invention aims to provide a device and a method for treating coal mine acidic wastewater by utilizing coal gangue, which aim to solve the problems that the coal gangue is generally used alone for adsorbing ions in the wastewater, and the coal gangue is used alone for treating the wastewater, so that the treatment effect is poor in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a device and a method for treating coal mine acidic wastewater by using coal gangue comprise the following steps:
s1, placing prefabricated coal gangue particles into equipment, filling the coal gangue particles at the middle end position of a lime material layer, and distributing the coal gangue particles according to a 1:6 ratio;
s2, continuously impacting the coal gangue particles in the treatment box in a vibration mode, wherein the up-down lifting frequency is 1min and 10 times, and the treatment box is ensured to be in a continuous lifting state;
s3, in the process of vertical lifting, according to the special connection relation between the processing box and the mounting frame, with the inertia of pressure spring and spring plate cooperation vertical lift, carry out vibrations processing by a wide margin to the gangue granule once more, elastic range: the sigma p is less than sigma 1 and less than sigma e, and the elastic distance is 10cm-15cm;
s4, mineral acid water is introduced into the treatment box, is sequentially impacted by the material layer and the coal gangue particles, powder generated by collision damage is mixed with wastewater, and the pH value of the treated mineral acid water is ensured to be between 5 and 7;
and 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, and flushing the hydroxide out of the treatment tank through purified water.
The treatment tank is a coal mine acidic wastewater treatment mechanism which is mainly used as equipment, an alkali lime layer, a slaked lime layer, a calcium carbonate layer, a blast furnace slag layer, a dolomite layer and a lime milk layer are sequentially arranged in the treatment tank 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, the mounting frame is in sliding connection with the treatment box, sliding chutes and positioning grooves are respectively preset in the mounting frame, and the positioning grooves are symmetrically distributed at the upper end and the lower end of each sliding chute;
the bottom frame is positioned at the bottom end of the treatment box, the top surface of the bottom frame is provided with a first linkage plate and a second linkage plate, and the first linkage plate, the second linkage plate and the bottom frame form a sliding structure;
the speed reducing motor is located inside the bottom frame, the output end of the speed reducing motor is connected with a driving gear, the outer surface of the driving gear is meshed with a speed reducing gear, and the middle end of the speed reducing gear is connected with a first rotating shaft.
As a preferable technical scheme of the invention, movable connecting rods are arranged between the first linkage plate and the mounting frame, the front ends and the rear ends of the movable connecting rods are provided with rotating seats, and the movable connecting rods form 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, linkage is carried out, the movable connecting rod processes the angle problem between the movable connecting rod and the mounting frame and between the movable connecting rod and the first linkage plate and between the movable connecting rod and the second linkage plate through the rotating seat, and the first linkage plate, the second linkage plate and the mounting frame move in the transverse and longitudinal directions.
As a preferred technical scheme of the invention, the top end of the underframe is provided with a supporting plate, the supporting plate is distributed in a mirror image mode relative to the center point of the installation frame, guide rails are symmetrically distributed on the inner surface of the supporting plate, and the supporting plate and the installation frame form a sliding structure through the guide rails.
By adopting the technical scheme, the underframe supports the mounting frame through the supporting plate in an auxiliary manner, and the mounting frame is guided to move vertically by matching with the guide rail, so that the processing box connected with the inside of the mounting frame can synchronously and vertically lift.
As a preferable technical scheme of the invention, a second rotating shaft is arranged on the opposite surface of the first 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 in the same structure.
By adopting the technical scheme, the first rotating shaft and the second rotating shaft are synchronously linked through the transmission chain, 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 the two groups of second linkage plates are respectively linked, so that the stability of transmission stress is ensured.
As a preferred technical solution of the present invention, a linkage gear is disposed on a top surface of the first rotating shaft, and the linkage gear is engaged with the first linkage plate and the second linkage plate.
Adopt above-mentioned technical scheme, first pivot meshes the transmission through the moving gear that sets up and first interlock board and second interlock board, can control first interlock board and the relative direction horizontal migration of second interlock board, and the cooperation removes the connecting rod and realizes the vertical migration control to the installing frame and handle the case, utilize vertical lift's inertia and scram, can control the rocking of handling case and installing frame, utilize and rock fast, make the material layer of handling incasement portion strike from top to bottom, and carry out the hybrid processing with material powder and waste water and purify, only when rocking, just can make the material layer volatilize, thereby can realize the self-processing effect.
As a preferred technical scheme, the upper end and the lower end of the treatment box are both provided with sealing plates, the connecting end of each sealing plate and the corresponding treatment box is provided with a connecting piece, the connecting pieces and the sealing plates are of an integrated structure, and the connecting pieces are in threaded connection with the treatment boxes.
Adopt above-mentioned technical scheme, handle case and closing plate and set up the leakproofness of connecting piece in order to guarantee the link to it is convenient to dismantle, is convenient for change the material layer of inside, is convenient for maintain inner structure, thereby has increased holistic mobility.
As a preferred technical scheme, the left end and the right end of the treatment box are symmetrically provided with movable plates, the outer surface of one end of each movable plate is provided with a buffer block, the buffer blocks are movably connected with the positioning grooves, spring plates are preset in the positioning grooves, and the spring plates and the buffer blocks form a buffer structure.
Adopt above-mentioned technical scheme, the fly leaf corresponds through buffer block and constant head tank and is connected at the in-process of vertical lift, can lead to the removal of handling case and installing frame to through buffer block and the inside slip of constant head tank, constant head tank one end is solid, through the atmospheric pressure that slides the production, and the cooperation spring plate can reduce the striking wear to handling case and installing frame transmission and cause, reduces the produced noise of transmission, improve the driven buffering effect of equipment.
As a preferred technical scheme of the present invention, a guide rod is arranged inside the mounting frame, the guide rod is slidably connected with the movable plate, a pressure spring is arranged between the movable plate and the mounting frame, and the pressure spring is slidably connected with the guide rod.
Adopt above-mentioned technical scheme, when guide bar and constant head tank lead to the fly leaf, still cooperate the pressure spring to handle the case and carry out the interlock, can make and handle the quick inside vibrations at the installing frame of case to the support is stable, improves the treatment effect, thereby has increased holistic functionality.
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 of vertical lifting and sudden stop, the material layer in the treatment box is impacted up and down by utilizing quick shaking, the material powder and the wastewater are mixed and treated and purified, and the material layer can volatilize only when the material layer is shaken, so that the self-treatment effect can be realized;
2. the fly leaf corresponds through buffer block and constant head tank at vertical lift's in-process and is connected, can lead to the removal of handling case and installing frame to through buffer block and the inside slip of constant head tank, constant head tank one end is solid, through the atmospheric pressure that slides and produce, and cooperation spring plate can reduce the striking wearing and tearing that cause to handling case and installing frame transmission, reduces the produced noise of transmission, improve the driven buffering effect of equipment.
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 front view of the underframe of the present invention;
FIG. 3 is a schematic view of the interior of the base frame of the present invention viewed from above;
FIG. 4 is a schematic view of the inside of the treatment tank of the present invention in elevation;
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 and second shafts according to the present invention.
In the figure: 1. a treatment box; 2. installing a frame; 3. a supporting plate; 4. a guide rail; 5. a chassis; 6. moving the connecting rod; 7. a rotating seat; 8. a wastewater inlet pipe; 9. a waste water calandria; 10. a first linkage plate; 11. a second linkage plate; 12. a first rotating shaft; 13. a reduction gear; 14. a reduction motor; 15. a drive gear; 16. a drive chain; 17. a linkage gear; 18. a second rotating shaft; 19. sealing plates; 20. a connecting member; 21. an alkali lime layer; 22. a slaked lime layer; 23. a calcium carbonate layer; 24. a blast furnace slag layer; 25. a dolomite layer; 26. a lime cream layer; 27. a chute; 28. a movable plate; 29. a guide bar; 30. compressing the spring; 31. a buffer block; 32. positioning a groove; 33. a spring plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a device and a method for treating acidic wastewater of a coal mine by using coal gangue comprise the following steps:
s1, placing prefabricated coal gangue particles into equipment, filling the coal gangue particles at the middle end position of a lime material layer, and distributing the coal gangue particles according to a 1:6 ratio;
s2, continuously impacting coal gangue particles in the treatment box 1 in a vibration mode, wherein the vertical lifting frequency is 1min10 times, and ensuring that the treatment box 1 is in a continuous lifting state;
s3, at vertical lift' S in-process, according to the special relation of being connected of handling case 1 and installing frame 2 to pressure spring 30 and the inertia of spring board 33 cooperation vertical lift carry out vibrations processing by a wide margin to the gangue granule again, the elasticity scope: the sigma p is less than sigma 1 and less than sigma e, and the elastic distance is 10cm-15cm;
s4, mineral acid water is introduced into the treatment box 1, and is sequentially impacted by the material layer and the coal gangue particles, powder generated by collision damage is mixed with wastewater, and the pH value of the treated mineral acid water is ensured to be between 5 and 7;
and 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 out of the treatment box 1 through purified water.
The treatment tank 1 is a main coal mine acidic wastewater treatment mechanism, 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 tank 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 tank 1, and the wastewater inlet pipe 8 is positioned at the upper end of the wastewater discharge pipe 9; the mounting frame 2 is positioned on the outer surface of the treatment box 1, the mounting frame 2 is in sliding connection with the treatment box 1, a sliding groove 27 and a positioning groove 32 are preset in the mounting frame 2 respectively, 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, the top surface of the bottom frame 5 is provided with a first linkage plate 10 and a second linkage plate 11, and the first linkage plate 10 and the second linkage plate 11 form a sliding structure with the bottom frame 5; the speed reducing motor 14 is positioned inside the bottom frame 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 meshed with a speed reducing gear 13, and the middle end of the speed reducing gear 13 is connected with the first rotating shaft 12.
A movable connecting rod 6 is arranged between the first linkage plate 10 and the mounting frame 2 and between the second linkage plate 11 and the mounting frame 2, rotating seats 7 are arranged at the front end and the rear end of the movable connecting rod 6, and the movable connecting rod 6, 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 first linkage plate 10 and the second linkage plate 11 support and link the mounting frame 2 and the processing box 1 through the movable connecting rod 6, and the movable connecting rod 6 processes the angle problem between the movable connecting rod 6 and the mounting frame 2 and between the movable connecting rod 6 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 horizontal and vertical directions with the mounting frame 2.
A supporting plate 3 is arranged at the top end of the bottom frame 5, the supporting plate 3 is distributed in a mirror image mode about the central point of the mounting frame 2, guide rails 4 are symmetrically distributed on the inner surface of the supporting plate 3, and the supporting plate 3 and the mounting frame 2 form a sliding structure through the guide rails 4; chassis 5 is supplementary through setting up fagging 3 to the support of installing frame 2 to cooperation guide rail 4 leads to 2 vertical migration of installing frame, makes 2 internal connection's of installing frame processing case 1 can synchronous vertical lift.
A second rotating shaft 18 is arranged on the opposite surface of the first rotating shaft 12, 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; the first rotating shaft 12 and the second rotating shaft 18 are synchronously linked 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, so that the two groups of first linkage plates 10 and second linkage plates 11 are respectively linked, and 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 engaged with the first linkage plate 10 and the second linkage plate 11; first pivot 12 meshes the transmission through the movable gear 17 that sets up and first linkage board 10 and second linkage board 11, can control first linkage board 10 and 11 relative direction horizontal migration of second linkage board, and the cooperation removes connecting rod 6 and realizes the vertical movement control to installing frame 2 and processing case 1, utilize vertical lift's inertia and scram, can control the rocking of handling case 1 and installing frame 2, utilize and rock fast, the messenger strikes about the inside material layer of processing case 1, and carry out hybrid processing with material powder and waste water and purify, only when rocking, just can make the material layer volatilize, thereby can realize the self-processing effect.
The upper end and the lower end of the treatment box 1 are respectively provided with a sealing plate 19, the connecting end of the sealing plate 19 and the treatment box 1 is provided with a connecting piece 20, 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; handle case 1 and closing plate 19 and set up the leakproofness of connecting piece 20 in order to guarantee the link to it is convenient to dismantle, is convenient for change the material layer of inside, is convenient for maintain inner structure, thereby has increased holistic mobility.
The movable plates 28 are symmetrically arranged at the left end and the right end of the treatment box 1, the 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 the positioning groove 32, the spring plate 33 is preset in the positioning groove 32, and the spring plate 33 and the buffer block 31 form a buffer structure; fly leaf 28 is at vertical lift's in-process, correspond with constant head tank 32 through buffer block 31 and is connected, can lead to the removal of handling case 1 and installing frame 2, and 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 the slip produced, and cooperation spring plate 33, can reduce the striking wear that causes handling case 1 and installing frame 2 transmission, reduce the produced noise of transmission, improve the driven buffering effect of equipment.
A guide rod 29 is arranged in the mounting frame 2, the guide rod 29 is connected with the movable plate 28 in a sliding manner, a pressure spring 30 is arranged between the movable plate 28 and the mounting frame 2, and the pressure spring 30 is connected with the guide rod 29 in a sliding manner; when guide bar 29 and constant head tank 32 lead to fly leaf 28, still cooperate pressure spring 30 to carry out the interlock to handling case 1, can make and handle the quick inside vibrations at installing frame 2 of case 1 to the support is stable, improves the treatment effect, thereby has increased holistic functionality.
The working principle is as follows: when the device and the method for treating the acidic wastewater of the coal mine by using the coal gangue are used, firstly, the wastewater is discharged into the treatment box 1 from the wastewater inlet pipe 8, and sequentially passes through 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 cream layer 26 for purification treatment, the wastewater inlet pipe 8 and the wastewater discharge pipe 9 are corrugated pipes with adjustable lengths, and can be deformed in a self-adaptive manner when the treatment box 1 moves in the vertical direction, then the reducing motor 14 is started to drive the driving gear 15, the driving gear 15 is meshed with the reducing gear 13 for transmission, the first rotating shaft 12 and the second rotating shaft 18 are synchronously linked through the transmission chain 16, the transmission structures connected with the first rotating shaft 12 and the second rotating shaft 18 are the same, and 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 the transmission stress is ensured, the first linkage plate 10 and the second linkage plate 11 support the installation frame 2 and the treatment box 1 through the movable connecting rod 6 and carry out linkage, the movable connecting rod 6 processes the angle problem between the movable connecting rod 6 and the installation frame 2 and between 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 horizontal and longitudinal directions with the installation frame 2, the underframe 5 assists in supporting the installation frame 2 through the arrangement of the supporting plate 3 and guides the vertical movement of the installation frame 2 in cooperation with the guide rail 4, so that the treatment box 1 connected inside the installation frame 2 can synchronously and vertically lift, the first rotating shaft 12 is in meshing transmission with the first linkage plate 10 and the second linkage plate 11 through the arranged moving gear 17, the horizontal movement in the opposite direction of the first linkage plate 10 and the second linkage plate 11 can be controlled, and the vertical movement control of the installation frame 2 and the treatment box 1 is realized through the cooperation of the movable connecting rod 6, inertia and scram by vertical lift are utilized, can control rocking of handling case 1 and installing frame 2, utilize and rock fast, make the inside material layer of handling case 1 strike from top to bottom, and carry out the hybrid processing purification with material powder and waste water, only when rocking, just can make the material layer volatilize, thereby can realize from the treatment effect, it sets up connecting piece 20 with closing plate 19 to handle case 1 in order to guarantee the leakproofness of link, and it is convenient to dismantle, be convenient for change the material layer of inside, be convenient for maintain the inner structure, thereby whole mobility has been increased, fly leaf 28 is at the in-process of vertical lift, correspond with constant head tank 32 through buffer block 31 and be connected, can lead to the removal of handling case 1 with installing frame 2, and slide through buffer block 31 and constant head tank 32 inside, constant head tank 32 one end is solid, atmospheric pressure through the slip production, and cooperate spring plate 33, can reduce the striking wearing and tearing that cause the transmission to handle case 1 and installing frame 2 transmission, improve the buffering effect of equipment transmission, guide bar 29 and 28 lead to the while, still cooperate the fly leaf 30, thereby the constant head tank 1 is handled to the stability of the processing case, and the stability of supporting the processing of the case 2 has been improved, thereby the whole shock is handled to the internal processing effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A device and a method for treating coal mine acidic wastewater by using coal gangue are characterized by comprising the following steps:
s1, placing prefabricated coal gangue particles into equipment, filling the coal gangue particles at the middle end position of a lime material layer, and distributing the coal gangue particles according to a 1:6 ratio;
s2, continuously impacting coal gangue particles in the treatment box (1) in a vibration mode, wherein the vertical lifting frequency is 1min and 10 times, and ensuring that the treatment box (1) is in a continuous lifting state;
s3, in the process of vertical lifting, according to the special connection relation between the processing box (1) and the mounting frame (2), the coal gangue particles are subjected to large-amplitude vibration processing again by matching the compression spring (30) and the spring plate (33) with the inertia of vertical lifting, and the elastic range is as follows: the sigma p is less than sigma 1 and less than sigma e, and the elastic distance is 10cm-15cm;
s4, mineral acid water is introduced into the treatment box (1), and is sequentially impacted by the material layer and the coal gangue particles, powder generated by collision damage is mixed with wastewater, and the pH value of the treated mineral acid water is ensured 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 with purified water to discharge the hydroxide out of the treatment tank (1);
the device comprises a treatment box (1), which is a main coal mine acidic wastewater treatment mechanism of the device, wherein 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, the upper end and the lower end of the treatment box (1) are respectively provided with a wastewater inlet pipe (8) and a wastewater discharge pipe (9), 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 chute (27) and positioning grooves (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 chute (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), the second linkage plate (11) and the bottom frame (5) form a sliding structure;
gear motor (14), be located the inside of chassis (5), gear motor (14) output is connected with drive gear (15), the surface meshing of drive gear (15) is connected with reduction gear (13), reduction gear (13) middle-end is connected with first pivot (12).
2. The device and the method for treating coal mine acidic wastewater by using coal gangue according to claim 1 are characterized in that: a movable connecting rod (6) is arranged between the first linkage plate (10), the second linkage plate (11) and the mounting frame (2), rotating seats (7) are arranged at the front end and the rear end of the movable connecting rod (6), 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).
3. The device and the method for treating acidic wastewater of coal mines by using coal gangue according to claim 1 are characterized in that: 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) pass through guide rail (4) and installing frame (2) constitution sliding construction.
4. The device and the method for treating coal mine acidic wastewater by using coal gangue according to claim 1 are characterized in that: the first rotating shaft (12) is provided with a second rotating shaft (18) in an 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.
5. The device and the method for treating coal mine acidic wastewater by using coal gangue according to claim 1 are characterized in that: and a linkage gear (17) is arranged on the top surface of the first rotating shaft (12), and the linkage gear (17) is in meshed connection with the first linkage plate (10) and the second linkage plate (11).
6. The device and the method for treating acidic wastewater of coal mines by using coal gangue according to claim 1 are characterized in that: the treatment box is characterized in that 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).
7. The device and the method for treating coal mine acidic wastewater by using coal gangue according to claim 1 are characterized in that: the processing box is characterized in that movable plates (28) are symmetrically arranged at the left end and the right end of the processing box (1), a buffer block (31) is arranged on the outer surface of one end of each movable plate (28), each buffer block (31) is movably connected with one positioning groove (32), a spring plate (33) is preset in each positioning groove (32), and each spring plate (33) and each buffer block (31) form a buffer structure.
8. The device and the method for treating coal mine acidic wastewater by using coal gangue according to claim 1 are characterized in that: the utility model discloses a portable mounting frame, including installing frame (2), guide bar (29) are provided with in installing frame (2) inside, guide bar (29) and fly leaf (28) are sliding connection, be provided with pressure spring (30) between fly leaf (28) and installing frame (2), pressure spring (30) and guide bar (29) are sliding connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210787524.4A CN115140819B (en) | 2022-07-06 | 2022-07-06 | Device and method for treating coal mine acidic wastewater by utilizing coal gangue |
Publications (2)
| Publication Number | Publication Date |
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| CN115140819A true CN115140819A (en) | 2022-10-04 |
| CN115140819B CN115140819B (en) | 2024-04-16 |
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| CN202210787524.4A Active 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116102170A (en) * | 2023-04-12 | 2023-05-12 | 四川省阳子森环保设备有限公司 | Multistage brewing wastewater denitrification treatment method |
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| ZA202300644B (en) | 2023-02-22 |
| CN115140819B (en) | 2024-04-16 |
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