CN108266224B - Underground coal mine sump dredging process and equipment thereof - Google Patents
Underground coal mine sump dredging process and equipment thereof Download PDFInfo
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- CN108266224B CN108266224B CN201810038543.0A CN201810038543A CN108266224B CN 108266224 B CN108266224 B CN 108266224B CN 201810038543 A CN201810038543 A CN 201810038543A CN 108266224 B CN108266224 B CN 108266224B
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- 239000003245 coal Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 165
- 238000007599 discharging Methods 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000012065 filter cake Substances 0.000 claims abstract description 10
- 239000000706 filtrate Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract 2
- 230000000903 blocking effect Effects 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 30
- 229910001220 stainless steel Inorganic materials 0.000 claims description 29
- 239000010935 stainless steel Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 25
- 239000013049 sediment Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 239000010419 fine particle Substances 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006424 Flood reaction Methods 0.000 description 2
- 238000011086 high cleaning Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000002287 horizontal cell Anatomy 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a coal mine underground water sump dredging process method and equipment thereof, belonging to the technical field of coal mine underground water sump dredging processes; the technological scheme is as follows: (1) the underground sump slime water (001) is divided into four parts of materials after being treated by underground sump dredging equipment (002); (2) the overflow water is circularly used in a circulating water pond (008) after being precipitated in a precipitation pond (004), and the bottom sedimentation material is stirred by blast air of an air pipe and then is sent to a filter press (007) through a slurry pump (006); (3) filtering by a filter press (007), then, circulating filtrate water to a circulating water tank (008), and enabling a filter cake to a raw coal belt conveyor (009); the underground sump dredging equipment (002) comprises an inclined groove body (2); the method is characterized in that: the device also comprises a discharging I device (1), a discharging II device (3), a discharging III device (6) and a discharging device (13); the beneficial effects are that: reduces the cleaning frequency of the water sump, shortens the one-time cleaning time and improves the cleaning quality.
Description
Technical Field
The utility model relates to a coal mine underground water sump dredging process method and equipment thereof, and belongs to the technical field of coal mine underground water sump dredging processes.
Background
Mine floods are one of four disasters in coal mine production, and underground water bins are important facilities for preventing mine floods and ensuring safe production of coal mines. The problem of water sump dredging is always a great difficulty which puzzles the safe production of coal mines, in recent years, along with the increase of the mining depth, the water inflow amount of a mine is increased, the frequency of water sump dredging is higher and higher, the threat degree brought to the mine is higher and higher, and the problem that how to reduce the frequency of water sump dredging, shorten the one-time dredging time and improve the dredging quality is needed to be solved.
At present, the underground water sump cleaning process and equipment for the coal mine mainly comprise the following steps:
(1) The manual shovel cleaning method and the loader cleaning method mainly have the following defects: the device has the advantages of high labor intensity, low working efficiency, high cleaning frequency, long cleaning time and serious pollution of coal slime to the environment in the transportation process.
(2) The scraper cleaning method and the chain bucket machine cleaning method mainly have the following defects: the transportation mine car has serious leakage, low working efficiency, high cleaning frequency, long cleaning time and serious pollution to the environment caused by the coal slime in the transportation process.
(3) The utility model patent No. 200420092004.9, namely a sump coal slime cleaning and excavating machine, is 11 months and 2 days of the authorized bulletin day 2005; the utility model patent number 200920163415.5, namely a cleaning and digging conveyor, is authorized to announce that the date is 4 months and 14 days in 2010; the two patents realize the mechanization of water sump cleaning, reduce the labor intensity of workers and improve the working efficiency; the main disadvantages are as follows: the cleaning frequency is high, the cleaning time is long, and the pollution of the coal slime to the environment in the transportation process is serious.
(4) The utility model patent 200510038944.9, namely automatic dredging treatment method and equipment for fine coal slime in mine sump, mainly has the defects that the publication date is 10/5/2005: the slurry in the underground water bin of the coal mine has large particles, and filter cloth is severely worn; the sediment is pumped into a filter press through a pump, so that the feeding concentration is low and uneven, and the filtering effect is poor; the frequency of cleaning is high, and the time of cleaning is long.
(5) The combined treatment method of the vibrating screen and the filter press is characterized in that coarse materials (+ 0.8 mm) are directly discharged onto a belt by adopting the vibrating screen, the remaining fine materials enter a sedimentation tank and are filtered by the filter press, and the main problems are that: the vibrating screen is continuous for 24 hours, has high energy consumption and needs to be attended by a special person; the sediment is pumped into a filter press through a pump, so that the feeding concentration is low and uneven, and the filtering effect is poor; the frequency of cleaning is high, and the time of cleaning is long.
The utility model provides a coal mine underground water sump dredging process method and equipment thereof for reducing the frequency of water sump dredging, shortening the one-time dredging time, improving the dredging quality and the like.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and discloses a coal mine underground water sump dredging process method and equipment thereof.
The utility model relates to a coal mine underground water sump dredging process method, which comprises the following specific process schemes: (1) after the underground sump slime water 001 is treated by the underground sump dredging equipment 002, the materials are divided into four parts: discharging the materials with the diameter of more than 4mm and mixed with part of fine materials from a discharging I device 1 of a downhole sump dredging device 002 to a coal slime transfer belt conveyor 003, and transferring the materials to a raw coal belt conveyor 009 through the coal slime transfer belt conveyor 003; part of the fine particle materials are discharged to a stirring barrel 005 from a discharging II device 3 of the underground sump dredging equipment 002; after the large-particle materials in the underground sump slime water 001 are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged to a slurry pump 006 through a discharge III device 6 of underground sump dredging equipment 002; the overflow water in the low-concentration material area passes through a drainage device 13 of the underground sump dredging equipment 002 to a sedimentation tank 004; (2) the sediment is deposited by a sedimentation tank 004, overflow water is recycled by a circulating water tank 008, and the bottom sediment material is stirred by blast air of an air pipe and then is conveyed to a filter press 007 by a slurry pump 006; (3) after being filtered by a filter press 007, the filtrate water is recycled to a circulating water tank 008, and the filter cake is recycled to a raw coal belt conveyor 009.
The utility model relates to a device combination scheme of a coal mine underground water sump dredging process method, which comprises the following steps: the main equipment comprises underground sump dredging equipment 002; a coal slime transfer belt conveyor 003; a stirring barrel 005; a slurry pump 006;
a filter press 007; raw coal belt conveyor 009; the outlet of the discharging I device 1 of the underground sump dredging equipment 002 is connected with the inlet of the coal slime transfer belt conveyor 003, and the outlet of the coal slime transfer belt conveyor 003 is connected with the inlet of the raw coal belt conveyor 009; an outlet of a discharging II device 3 of the underground sump dredging equipment 002 is connected with an inlet of a stirring barrel 005, and an outlet of the stirring barrel 005 is connected with an inlet of a slurry pump 006; the outlet of the discharging III device 6 of the underground sump dredging equipment 002 is connected with the inlet of the slurry pump 006; the outlet of the slurry pump 006 is connected to the inlet of the filter press 007.
The underground water sump dredging equipment 002 comprises an inclined groove body 2, a horizontal groove body 5, a transmission device 7 and a PLC control cabinet 14; the inclined groove body 2 is connected with the horizontal groove body 5 by adopting flange bolts; the transmission device 7 comprises a motor reducer, a main transmission shaft, a driven shaft, a transmission chain and the like; the method is characterized in that: the device also comprises a discharging I device 1, a discharging II device 3, a material baffle I plate 4, a discharging III device 6, a material baffle II plate 8, a feeding device 9, a sloping plate I device 10, a sloping plate II device 11, a sloping plate III device 12 and a drainage device 13; the discharging I device 1 comprises a discharging chute arranged at the left end of the inclined chute body 2, a plurality of discharging scrapers with long slot holes with the width of 4-6 mm, wherein two ends of each discharging scraper are connected with a transmission chain through bolts, and a transmission chain in the transmission device 7 drives the discharging scrapers to move so as to realize a discharging function; the discharging II device 3 comprises a chute body welded at the bottom plate opening of the chute body 2, a plurality of spray water pipes arranged on the lower side surface of the chute body, a discharging flange arranged at the lowest end of the chute body, a sieve plate, a sieve frame for arranging the sieve plate and a sieve frame arranged on the inner side of the chute body and flush with the upper plane of the bottom plate of the chute body 2; the front end and the rear end of the material blocking I plate 4 are welded with the inner sides of the two side plates of the inclined groove body 2, the upper end of the material blocking I plate 4 is 200-300 mm higher than the overflow liquid level N line, and the lower end of the material blocking I plate 4 is 200-300 mm higher than the high-concentration liquid level M line; the discharging III device 6 is arranged at two outer sides of the front end of the horizontal groove body 5 and is positioned at a position 200 mm-300 mm below the high-concentration liquid level M line; the front end and the rear end of the material blocking II plate 8 are welded with the inner sides of the two side plates of the horizontal groove body 5, the upper end of the material blocking II plate 8 is 200-300 mm higher than the overflow liquid level N line, and the lower end of the material blocking II plate 8 is 200-300 mm higher than the high-concentration liquid level M line; the feeding device 9 comprises feeding pipes arranged on two outer sides of the middle part of the horizontal groove body 5, vertical diversion grooves and inclined diversion grooves arranged on two inner sides of the middle part of the horizontal groove body 5; the front end and the rear end of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are welded with the inner sides of two side plates of the inclined groove body 2; the upper ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are 200-300 mm higher than the overflow liquid level N line, and the lower ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are 200-300 mm higher than the high-concentration liquid level M line; the drainage device 13 comprises discharge pipes arranged at two outer sides of the rear end of the horizontal tank body 5 and vertical overflow tanks arranged at two inner sides of the rear end of the horizontal tank body 5, and overflow weirs of the vertical overflow tanks are level with an overflow liquid level N line; the inner cavity of the horizontal groove body 5 is divided into four areas by the material blocking I plate 4, the material blocking II plate 8, the inclined plate I device 10 and the inclined plate III device 12, the space between the material blocking I plate 4 and the material blocking II plate 8 is a high-concentration material area, the space between the material blocking II plate 8 and the inclined plate I device 10 is a feeding sedimentation area, the space between the inclined plate I device 10 and the inclined plate III device 12 is an inclined plate sedimentation area, and the space between the right side of the inclined plate III device 12 and the inner side surface of the right end side plate of the horizontal groove body 5 is a low-concentration material area; the slime water enters the horizontal tank body 5 from the feeding device 9, is controlled and detected by the PLC control cabinet 14, and when the height of sediment at the inner side bottom of the horizontal tank body 5 exceeds a high-concentration liquid level M line, the transmission device 7 is started to drive the discharging scraper to move leftwards at the bottom of the horizontal tank body 5, so that materials with the diameter of more than 4mm and part of fine materials mixed with the materials are discharged from the discharging I device 1 to a raw coal belt; when the discharging scraper drives part of the materials to pass through the discharging II device 3, part of the fine particle materials are discharged from a discharging flange of the discharging II device 3 under the action of a plurality of spray water pipes of the discharging II device 3; the discharging scraping plate moves leftwards at the bottom of the horizontal groove body 5, the material concentration at the left end of the bottom of the horizontal groove body 5 is higher and higher, the material concentration at the right end of the bottom of the horizontal groove body 5 is lower and lower, after large-particle materials in the slime water are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged through the discharging III device 6; the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 have inclined plate sedimentation, overflow water overflows rightward from the upper ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 to a low-concentration material area respectively, and the overflow water is recycled to a circulating water pool through the water discharge device 13.
The included angle alpha between the bottom surface of the inclined groove body 2 and the horizontal plane is 40-50 degrees, and the main functions are as follows:
the discharging scraper moves the materials with the diameter of more than 4mm and the part of the fine materials mixed with the materials upwards along the included angle alpha, so that the materials with the diameter of more than 4mm and the part of the fine materials mixed with the materials are convenient for belt transportation.
The upper end of the material blocking I plate 4 is 200-300 mm higher than the overflow liquid level N line, and the main functions are as follows: the material discharging scraper moves leftwards at the bottom of the horizontal groove body 5, the left side concentration of the material blocking I plate 4 is higher and higher, the materials on the material discharging scraper cannot fall off due to the influence of water, and the material discharging efficiency is improved.
The main functions of the discharging II device 3 are as follows: under the effect of the several shower pipes of row material II device 3, part fine particle material is discharged to the agitator from row material flange of row material II device 3, directly filters to the pressure filter through the sediment stuff pump, and the filter cake is discharged to the raw coal belt, and filtrate water is to circulating water pond cyclic utilization, further improves the efficiency of dredging.
The main functions of the discharging III device 6 are as follows: the material scraping plate moves leftwards at the bottom of the horizontal groove body 5, the material concentration of the left end of the bottom of the horizontal groove body 5 is higher and higher, the materials with the diameter of more than 4mm and the mixed fine materials are discharged through the material discharging I device 1, the fine materials with the high concentration are stored in a high-concentration material area, discharged to a stirring barrel through the material discharging III device 6, filtered by a slurry pump directly to a filter press, a filter cake is discharged to a raw coal belt, filtrate water is recycled to a circulating water tank, and the cleaning efficiency is further improved.
The inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 have an included angle beta of 55-65 degrees with the horizontal plane, and the inclined plane sedimentation principle is adopted to further accelerate the sedimentation of materials.
The inclined plate I device 10 comprises an inclined plate body I and a stainless steel filter screen I which is arranged at the upper end through bolt connection, wherein the height of the stainless steel filter screen I is convenient to adjust, the aperture of the stainless steel filter screen I is 0.2-0.3 mm, and the passing rate of the stainless steel filter screen I is 20%; the stainless steel filter screen I has the main functions that: effectively prevent coarse particle material from passing through, further improve sedimentation effect.
The inclined plate II device 11 comprises an inclined plate body II and a stainless steel filter screen II which is arranged at the upper end through bolt connection, the height of the stainless steel filter screen II is convenient to adjust, the aperture of the stainless steel filter screen II is 0.1-0.2 mm, and the passing rate of the stainless steel filter screen II is 30%; the stainless steel filter screen II has the main functions that: effectively prevent coarse particle material from passing through, further improve sedimentation effect.
The inclined plate III device 12 comprises an inclined plate body III and a stainless steel filter screen III which is arranged at the upper end through bolt connection, the height of the stainless steel filter screen III is convenient to adjust, the aperture of the stainless steel filter screen III is 0.005-0.1 mm, and the passing rate of the stainless steel filter screen III is 40%; the stainless steel filter screen III has the main functions that: effectively prevent coarse particle material from passing through, further improve sedimentation effect.
The material of the baffle I plate 4, the baffle II plate 8, the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 is stainless steel.
The upper end face of the inclined plate I device 10 is 20 mm-30 mm higher than the upper end face of the inclined plate II device 11.
The upper end face of the inclined plate II device 11 is 20 mm-30 mm higher than the upper end face of the inclined plate III device 12.
Further, the bottom of the horizontal tank 5 has a large amount of sediment, and when the discharge scraper cannot move, the bottom is stirred by high-pressure air or high-pressure water.
The beneficial effects of the utility model are as follows:
(1) The underground sump dredging equipment 002 adopts three-stage discharging, so that the dredging efficiency is improved, and the first stage discharges materials with the diameter of more than 4mm and mixed part of fine materials from the discharging I device 1 to the coal slime transfer belt conveyor 003; secondly, under the action of a plurality of spray pipes of the discharging II device 3, part of fine particle materials are discharged to a stirring barrel from a discharging flange of the discharging II device 3, are directly filtered to a filter press 007 through a slurry pump 006, filter cakes are discharged to a raw coal belt conveyor 009, and filtrate water is recycled to a circulating water tank, so that the cleaning efficiency is further improved; third, the fine material of part high concentration is deposited in the high concentration material district, discharges to the agitator through row material III device 6, directly filters to pressure filter 007 through sediment stuff pump 006, and the filter cake is discharged to the raw coal belt, and filtrate water is to circulating water pond cyclic utilization, further improves and digs efficiency, shortens disposable clear time.
(2) Baffle I board 4, baffle II board 8, swash plate I device 10 and swash plate III device 12 divide into four regions with the inner chamber of horizontal cell body 5, and the material of being convenient for subsides and handles.
(3) The inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are arranged on the inner side of the horizontal tank body 5, and the inclined plane sedimentation principle is adopted to further accelerate sedimentation of ore pulp and improve treatment efficiency.
(4) The slime water enters the horizontal tank body 5 from the feeding device 9, is controlled and detected by the PLC control cabinet 14, and when the height of sediment at the inner side bottom of the horizontal tank body 5 exceeds the high-concentration liquid level M line, the transmission device 7 is started, so that the frequency of water sump cleaning is reduced.
(5) The process method has no secondary pollution, and improves the quality of dredging.
(6) The underground sump dredging equipment 002 has the functions of mud scraping and discharging and a primary sedimentation tank, so that the dredging times of the subsequent sedimentation tank 004 are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a downhole sump dredging apparatus 002 according to the present utility model;
FIG. 2 is a top view of the downhole sump dredging apparatus 002 of the present utility model;
FIG. 3 is an enlarged view of the left end of the front view of the horizontal tank body 5 in the underground sump dredging apparatus 002 according to the present utility model;
FIG. 4 is an enlarged view of the right end of the front view of the horizontal tank body 5 in the underground sump dredging apparatus 002 according to the present utility model;
FIG. 5 is a cross-sectional view A-A of the downhole sump dredging apparatus 002 according to the present utility model;
FIG. 6 is a cross-sectional view B-B of the front view of the downhole sump dredging apparatus 002 according to the present utility model;
FIG. 7 is a cross-sectional view C-C of the front view of the downhole sump dredging apparatus 002 according to the present utility model;
FIG. 8 is an enlarged view at I of the front view of the downhole sump dredging apparatus 002 according to the present utility model;
FIG. 9 is a device flow chart of a coal mine underground water sump dredging process method according to the utility model;
in the figure:
1-discharge I device 2-inclined chute body 3-discharge II device 4-baffle I plate 5-horizontal chute body
6-material III discharging device 7-transmission device 8-material II blocking plate 9-material feeding device 10-sloping plate I device
11-sloping plate II device 12-sloping plate III device 13-drainage device 14-PLC control cabinet
001-underground sump slime water 002-underground sump dredging device 003-slime transfer belt conveyor 004-sedimentation tank 005-stirring barrel 006-slurry pump 007-filter press 008-circulating water tank 009-raw coal belt conveyor
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the utility model relates to a coal mine underground water sump cleaning and digging process method, which comprises the following specific process schemes: (1) after the underground sump slime water 001 is treated by the underground sump dredging equipment 002, the materials are divided into four parts: discharging the materials with the diameter of more than 4mm and mixed with part of fine materials from a discharging I device 1 of a downhole sump dredging device 002 to a coal slime transfer belt conveyor 003, and transferring the materials to a raw coal belt conveyor 009 through the coal slime transfer belt conveyor 003; part of the fine particle materials are discharged to a stirring barrel 005 from a discharging II device 3 of the underground sump dredging equipment 002; after the large-particle materials in the underground sump slime water 001 are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged to a slurry pump 006 through a discharge III device 6 of underground sump dredging equipment 002; the overflow water in the low-concentration material area passes through a drainage device 13 of the underground sump dredging equipment 002 to a sedimentation tank 004; (2) the sediment is deposited by a sedimentation tank 004, overflow water is recycled by a circulating water tank 008, and the bottom sediment material is stirred by blast air of an air pipe and then is conveyed to a filter press 007 by a slurry pump 006; (3) after being filtered by a filter press 007, the filtrate water is recycled to a circulating water tank 008, and the filter cake is recycled to a raw coal belt conveyor 009.
The underground water sump dredging equipment 002 comprises an inclined groove body 2, a horizontal groove body 5, a transmission device 7 and a PLC control cabinet 14; the inclined groove body 2 is connected with the horizontal groove body 5 by adopting flange bolts; the transmission device 7 comprises a motor reducer, a main transmission shaft, a driven shaft, a transmission chain and the like; the method is characterized in that: the device also comprises a discharging I device 1, a discharging II device 3, a material baffle I plate 4, a discharging III device 6, a material baffle II plate 8, a feeding device 9, a sloping plate I device 10, a sloping plate II device 11, a sloping plate III device 12 and a drainage device 13; the discharging I device 1 comprises a discharging chute arranged at the left end of the inclined chute body 2, a plurality of discharging scrapers with long slot holes with the width of 4-6 mm, wherein two ends of each discharging scraper are connected with a transmission chain through bolts, and a transmission chain in the transmission device 7 drives the discharging scrapers to move so as to realize a discharging function; the discharging II device 3 comprises a chute body welded at the bottom plate opening of the chute body 2, a plurality of spray water pipes arranged on the lower side surface of the chute body, a discharging flange arranged at the lowest end of the chute body, a sieve plate, a sieve frame for arranging the sieve plate and a sieve frame arranged on the inner side of the chute body and flush with the upper plane of the bottom plate of the chute body 2; the front end and the rear end of the material blocking I plate 4 are welded with the inner sides of the two side plates of the inclined groove body 2, the upper end of the material blocking I plate 4 is 200-300 mm higher than the overflow liquid level N line, and the lower end of the material blocking I plate 4 is 200-300 mm higher than the high-concentration liquid level M line; the discharging III device 6 is arranged at two outer sides of the front end of the horizontal groove body 5 and is positioned at a position 200 mm-300 mm below the high-concentration liquid level M line; the front end and the rear end of the material blocking II plate 8 are welded with the inner sides of the two side plates of the horizontal groove body 5, the upper end of the material blocking II plate 8 is 200-300 mm higher than the overflow liquid level N line, and the lower end of the material blocking II plate 8 is 200-300 mm higher than the high-concentration liquid level M line; the feeding device 9 comprises feeding pipes arranged on two outer sides of the middle part of the horizontal groove body 5, vertical diversion grooves and inclined diversion grooves arranged on two inner sides of the middle part of the horizontal groove body 5; the front end and the rear end of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are welded with the inner sides of two side plates of the inclined groove body 2; the upper ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are 200-300 mm higher than the overflow liquid level N line, and the lower ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 are 200-300 mm higher than the high-concentration liquid level M line; the drainage device 13 comprises discharge pipes arranged at two outer sides of the rear end of the horizontal tank body 5 and vertical overflow tanks arranged at two inner sides of the rear end of the horizontal tank body 5, and overflow weirs of the vertical overflow tanks are level with an overflow liquid level N line; the inner cavity of the horizontal groove body 5 is divided into four areas by the material blocking I plate 4, the material blocking II plate 8, the inclined plate I device 10 and the inclined plate III device 12, the space between the material blocking I plate 4 and the material blocking II plate 8 is a high-concentration material area, the space between the material blocking II plate 8 and the inclined plate I device 10 is a feeding sedimentation area, the space between the inclined plate I device 10 and the inclined plate III device 12 is an inclined plate sedimentation area, and the space between the right side of the inclined plate III device 12 and the inner side surface of the right end side plate of the horizontal groove body 5 is a low-concentration material area; the slime water enters the horizontal tank body 5 from the feeding device 9, is controlled and detected by the PLC control cabinet 14, and when the height of sediment at the inner side bottom of the horizontal tank body 5 exceeds a high-concentration liquid level M line, the transmission device 7 is started to drive the discharging scraper to move leftwards at the bottom of the horizontal tank body 5, so that materials with the diameter of more than 4mm and part of fine materials mixed with the materials are discharged from the discharging I device 1 to a raw coal belt; when the discharging scraper drives part of the materials to pass through the discharging II device 3, part of the fine particle materials are discharged from a discharging flange of the discharging II device 3 under the action of a plurality of spray water pipes of the discharging II device 3; the discharging scraping plate moves leftwards at the bottom of the horizontal groove body 5, the material concentration at the left end of the bottom of the horizontal groove body 5 is higher and higher, the material concentration at the right end of the bottom of the horizontal groove body 5 is lower and lower, after large-particle materials in the slime water are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged through the discharging III device 6; the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 have inclined plate sedimentation, overflow water overflows rightward from the upper ends of the inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 to a low-concentration material area respectively, and the overflow water is recycled to a circulating water pool through the water discharge device 13.
The main functions of the discharging II device 3 are as follows: under the effect of the several shower pipes of row material II device 3, part fine particle material is discharged to the agitator from row material flange of row material II device 3, directly filters to the pressure filter through the sediment stuff pump, and the filter cake is discharged to the raw coal belt, and filtrate water is to circulating water pond cyclic utilization, further improves the efficiency of dredging.
The main functions of the discharging III device 6 are as follows: the material scraping plate moves leftwards at the bottom of the horizontal groove body 5, the material concentration of the left end of the bottom of the horizontal groove body 5 is higher and higher, the materials with the diameter of more than 4mm and the mixed fine materials are discharged through the material discharging I device 1, the fine materials with the high concentration are stored in a high-concentration material area, discharged to a stirring barrel through the material discharging III device 6, filtered by a slurry pump directly to a filter press, a filter cake is discharged to a raw coal belt, filtrate water is recycled to a circulating water tank, and the cleaning efficiency is further improved.
The inclined plate I device 10, the inclined plate II device 11 and the inclined plate III device 12 adopt the inclined plane sedimentation principle to further accelerate the sedimentation of materials.
Claims (10)
1. A coal mine underground water sump cleaning process method comprises the following specific process schemes: (1) after the underground sump slime water (001) is treated by underground sump dredging equipment (002), the materials are divided into four parts: discharging the materials with the diameter of more than 4mm and mixed with part of fine materials from a discharging I device (1) of underground sump dredging equipment (002) to a coal slime transfer belt conveyor (003), and transferring the materials to a raw coal belt conveyor (009) through the coal slime transfer belt conveyor (003); part of the fine particle materials are discharged to a stirring barrel (005) from a discharge II device (3) of underground sump dredging equipment (002); after the large-particle materials in the underground sump slime water (001) are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged to a slurry pump (006) through a discharge III device (6) of underground sump dredging equipment (002); the overflow water in the low-concentration material area passes through a drainage device (13) of underground sump dredging equipment (002) to a sedimentation tank (004); (2) the overflow water is circularly used in a circulating water pond (008) after being precipitated in a precipitation pond (004), and the bottom sedimentation material is stirred by blast air of an air pipe and then is sent to a filter press (007) through a slurry pump (006); (3) filtering by a filter press (007), then, circulating filtrate water to a circulating water tank (008), and enabling a filter cake to a raw coal belt conveyor (009);
a material blocking I plate (4) and a material blocking II plate (8) are fixedly arranged on the inner wall of a tank body of the underground water sump dredging equipment (002), the upper end of the material blocking I plate (4) is 200-300 mm higher than an overflow liquid level N line, the lower end of the material blocking I plate (4) is 200-300 mm higher than a high-concentration liquid level M line, the upper end of the material blocking II plate (8) is 200-300 mm higher than the overflow liquid level N line, and the lower end of the material blocking II plate (8) is 200-300 mm higher than the high-concentration liquid level M line;
the space between the baffle I plate (4) and the baffle II plate (8) is a high-concentration material area.
2. The underground coal mine sump dredging process method according to claim 1, wherein the equipment combination scheme for implementing the underground coal mine sump dredging process method is as follows: the main equipment comprises underground sump dredging equipment (002); a coal slime transfer belt conveyor (003); a stirring barrel (005); a slurry pump (006); a filter press (007); a raw coal belt conveyor (009); the outlet of a discharging I device (1) of the underground sump dredging equipment (002) is connected with the inlet of a coal slime transfer belt conveyor (003), and the outlet of the coal slime transfer belt conveyor (003) is connected with the inlet of a raw coal belt conveyor (009); an outlet of a discharging II device (3) of the underground sump dredging equipment (002) is connected with an inlet of a stirring barrel (005), and an outlet of the stirring barrel (005) is connected with an inlet of a slurry pump (006); the outlet of a discharging III device (6) of the underground sump dredging equipment (002) is connected with the inlet of a slurry pump (006); the outlet of the slurry pump (006) is connected to the inlet of the filter press (007).
3. A method for cleaning and excavating a water sump in a coal mine according to claim 1 or claim 2, wherein the method comprises the following steps: the underground sump dredging device (002) is arranged; the underground water sump dredging equipment (002) comprises an inclined groove body (2), a horizontal groove body (5), a transmission device (7) and a PLC control cabinet (14); the inclined groove body (2) is connected with the horizontal groove body (5) by adopting flange bolts; the transmission device (7) comprises a motor reducer, a main transmission shaft, a driven shaft, a transmission chain and the like; the method is characterized in that: the device also comprises a discharging I device (1), a discharging II device (3), a material blocking I plate (4), a discharging III device (6), a material blocking II plate (8), a feeding device (9), an inclined plate I device (10), an inclined plate II device (11), an inclined plate III device (12) and a drainage device (13); the discharging device I (1) comprises a discharging chute arranged at the left end of the inclined chute body (2), and a discharging scraping plate with a plurality of long slot holes with the width of 4-6 mm, wherein two ends of the discharging scraping plate are connected with a transmission chain through bolts, and a transmission chain in the transmission device (7) drives the discharging scraping plate to move so as to realize a discharging function; the discharging II device (3) comprises a chute body welded at the opening of the bottom plate of the chute body (2), a plurality of spray water pipes arranged on the lower side surface of the chute body, a discharging flange arranged at the lowest end of the chute body, a sieve plate, a sieve frame for arranging the sieve plate and a sieve frame arranged on the inner side of the chute body and flush with the upper plane of the bottom plate of the chute body (2); the front end and the rear end of the material blocking I plate (4) are welded with the inner sides of two side plates of the inclined groove body (2), the material discharging III device (6) is arranged at the two outer sides of the front end of the horizontal groove body (5) and is positioned at a position 200-300 mm below a high-concentration liquid level M line; the front end and the rear end of the material blocking II plate (8) are welded with the inner sides of two side plates of the horizontal groove body (5), and the feeding device (9) comprises a feeding pipe arranged on the two outer sides of the middle part of the horizontal groove body (5), a vertical shunt groove and an inclined shunt groove which are arranged on the two inner sides of the middle part of the horizontal groove body (5); the front end and the rear end of the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) are welded with the inner sides of two side plates of the inclined groove body (2); the upper ends of the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) are 200-300 mm higher than the overflow liquid level N line, and the lower ends of the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) are 200-300 mm higher than the high-concentration liquid level M line; the drainage device (13) comprises discharge pipes arranged at two outer sides of the rear end of the horizontal tank body (5), and vertical overflow tanks arranged at two inner sides of the rear end of the horizontal tank body (5), and overflow weirs of the vertical overflow tanks are flush with an overflow liquid level N line; the inner cavity of the horizontal groove body (5) is divided into four areas by the baffle I plate (4), the baffle II plate (8), the inclined plate I device (10) and the inclined plate III device (12), the space between the baffle I plate (4) and the baffle II plate (8) is a high-concentration material area, the space between the baffle II plate (8) and the inclined plate I device (10) is a feeding sedimentation area, the space between the inclined plate I device (10) and the inclined plate III device (12) is an inclined plate sedimentation area, and the space between the right side of the inclined plate III device (12) and the inner side surface of the right end side plate of the horizontal groove body (5) is a low-concentration material area; the slime water enters the horizontal tank body (5) from the feeding device (9), is controlled and detected by the PLC control cabinet (14), and when the height of sediment at the inner side bottom of the horizontal tank body (5) exceeds a high-concentration liquid level M line, the transmission device (7) is started to drive the discharging scraper to move leftwards at the bottom of the horizontal tank body (5), and the materials with the diameter of more than 4mm and the mixed part of fine materials are discharged from the discharging I device (1) to a raw coal belt; when the discharging scraper drives part of the materials to pass through the discharging II device (3), part of the fine particle materials are discharged from a discharging flange of the discharging II device (3) under the action of a plurality of spray water pipes of the discharging II device (3); the discharging scraping plate moves leftwards at the bottom of the horizontal groove body (5), the material concentration of the left end of the bottom of the horizontal groove body (5) is higher and higher, the material concentration of the right end of the bottom of the horizontal groove body (5) is lower and lower, after large-particle materials in the slime water are discharged, part of high-concentration fine materials are stored in a high-concentration material area and are discharged through the discharging III device (6); the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) have inclined plate sedimentation, overflow water overflows rightwards from the upper ends of the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) to a low-concentration material area respectively, and the overflow water is recycled to a circulating water pool through a drainage device (13).
4. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the included angle alpha between the bottom surface of the inclined groove body (2) and the horizontal plane is 40-50 degrees.
5. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the upper end of the material blocking I plate (4) is 200-300 mm higher than the overflow liquid level N line.
6. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the inclined plate I device (10) comprises an inclined plate body I and a stainless steel filter screen I which is installed at the upper end through bolt connection, the height of the stainless steel filter screen I is convenient to adjust, the aperture of the stainless steel filter screen I is 0.2-0.3 mm, and the passing rate of the stainless steel filter screen I is 20%.
7. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the inclined plate II device (11) comprises an inclined plate body II and a stainless steel filter screen II which is installed at the upper end through bolt connection, the height of the stainless steel filter screen II is convenient to adjust, the aperture of the stainless steel filter screen II is 0.1-0.2 mm, and the passing rate of the stainless steel filter screen II is 30%.
8. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the inclined plate III device (12) comprises an inclined plate body III and a stainless steel filter screen III which is installed at the upper end through bolt connection, the height of the stainless steel filter screen III is convenient to adjust, the aperture of the stainless steel filter screen III is 0.005-0.1 mm, and the passing rate of the stainless steel filter screen III is 40%.
9. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the material blocking I plate (4), the material blocking II plate (8), the inclined plate I device (10), the inclined plate II device (11) and the inclined plate III device (12) are made of stainless steel.
10. A method for cleaning and excavating a water sump in a coal mine well according to claim 3, wherein the method comprises the following steps: the upper end face of the inclined plate I device (10) is 20-30 mm higher than the upper end face of the inclined plate II device (11).
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| CN109264307A (en) * | 2018-09-07 | 2019-01-25 | 太原科技大学 | A kind of mining float coal clears up system automatically |
| CN109289272B (en) * | 2018-10-25 | 2021-08-03 | 四川国润和洁环境科技有限公司 | Solid recovery unit for waste water treatment |
| CN109944288B (en) * | 2019-04-19 | 2024-03-19 | 山东莱芜煤矿机械有限公司 | Underground coal mine sump dredging robot and dredging method |
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