CN112127944A - Dynamic cleaning method for underground sump - Google Patents
Dynamic cleaning method for underground sump Download PDFInfo
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- CN112127944A CN112127944A CN202010987618.7A CN202010987618A CN112127944A CN 112127944 A CN112127944 A CN 112127944A CN 202010987618 A CN202010987618 A CN 202010987618A CN 112127944 A CN112127944 A CN 112127944A
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- Prior art keywords
- water
- sump
- sewage
- underground
- well
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 132
- 239000010865 sewage Substances 0.000 claims abstract description 69
- 239000003245 coal Substances 0.000 claims abstract description 40
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/04—Separation devices for treating liquids from earth drilling, mining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of underground water treatment, and particularly relates to a dynamic clearing method for an underground water sump, which solves the problems that manpower and material resources are wasted and operation risks are increased in the traditional clearing method. The invention comprises the following steps: s1: discharging sewage dynamically; the underground sewage is discharged from a drain pipe of a main roadway to a connection port between a main sump and an auxiliary sump through a pipeline additionally arranged in the main sump and/or the auxiliary sump by a water pump, then flows into a small water-absorbing well from the connection port, and is discharged to the small water-absorbing well while being stirred, so that the dynamic cleaning of the sump which is discharged and cleaned immediately is realized, and the sewage is directly discharged to the well; s2: and (4) performing sewage treatment in an aboveground sewage plant. The invention realizes immediate discharge and cleaning while stirring and discharging on the well, and prevents sewage from depositing in the small water-absorbing well and the added pipeline; the waterproof dike prevents the coal slime from entering the sump; the problems of large equipment occupation area, digging of installation space, high difficulty of underground sewage treatment operation, high operation danger coefficient, multiple working procedures and low working efficiency in underground sewage treatment are solved.
Description
Technical Field
The invention belongs to the technical field of underground water treatment, and particularly relates to a dynamic cleaning method for an underground water sump.
Background
The underground coal mine operation environment is special, coal slag or coal slime (mainly coal slime) is often contained in sewage, the sewage is discharged to a water sump (a main water sump and an auxiliary water sump) through a water discharge pipe in a main roadway, and the coal slime in the water is precipitated and accumulated in the main water sump and the auxiliary water sump to influence the capacity of the water sump. The regulation of coal mine safety regulations: sludge in the sump, sedimentation tank and ditch should be cleaned in time. Traditional storehouse of clearing in colliery blocks up earlier and treats clear water storehouse entry, by professional team through artifical or professional equipment with storehouse coal slime water dress to the mine car in, then transport ground hillock, not only extravagant manpower, material resources have increased the operation risk, the operating efficiency is low, involves the environmental improvement in later stage moreover.
The Chinese patent CN108525356A discloses a method for treating coal slurry in an underground water sump, which comprises the following steps of isolating the water sump to be cleaned, plugging the water inlet of the water sump to be cleaned by using a plug, closing a communication valve of a water suction well, opening a drainage pump, and reducing the water level in the water sump to be cleaned to the minimum; then extracting the coal slime, fully stirring the coal slime by using coal slime stirring equipment, sucking out the coal slime by using a slurry machine, and introducing the coal slime into a stirring box for fully stirring to separate the coal slime into thick coal slime and thin coal slime; conveying the thick coal slime to the ground by using a belt conveyor; the method comprises the following steps of (1) enabling dilute coal slime to sequentially pass through a filtering buffer device and a filter pressing device to respectively form a coal slime cake and return water, conveying the coal slime cake to the ground through a mine car, and sending the return water to other water bins through a conveying pipeline; after the coal slime cleaning work is finished, the plug is removed, and each valve is opened, so that the water sump to be cleaned circulates. The invention Chinese patent CN108266224A discloses a coal mine underground water sump dredging process method and equipment, the process scheme is: dividing four parts of materials after underground sump coal slime water (001) is treated by underground sump dredging equipment (002); precipitating by a sedimentation tank (004), enabling overflow water to be recycled by a circulating water tank (008), and enabling bottom-precipitated materials to pass through a slurry pump (006) to a filter press (007) after blast stirring by an air pipe; thirdly, after being filtered by a filter press (007), filtrate water is recycled in a circulating water pool (008) and filter cakes are conveyed to a raw coal belt conveyor (009); reduce the dredging frequency of the sump, shorten the one-time dredging time and improve the dredging quality. However, the two patent application documents have complex structures, need to be filtered underground, are greatly influenced by underground conditions, have poor safety and have high cost.
Disclosure of Invention
The invention aims to solve the problems and provides a dynamic cleaning method for an underground water sump.
The invention is realized by adopting the following technical scheme: a dynamic cleaning method for an underground sump comprises the following steps:
s1: discharging sewage dynamically; the underground sewage is discharged to a connecting port between the main water sump and the auxiliary water sump from a water discharge pipe of a main roadway through an additional pipeline in the main water sump and/or the auxiliary water sump by a water pump, then flows into a plurality of small water-absorbing wells on one side of the connecting port from the connecting port, is immediately stirred by a stirrer in the small water-absorbing well and is directly discharged to the well through a water pump at the top of the small water-absorbing well, so that the dynamic cleaning of the water sump which is discharged and cleaned immediately is realized, the sewage is directly discharged to the well, and the coal slime in the sewage is prevented from being deposited in the water sump or the small well;
when the sewage discharge amount is increased, sewage flowing into the small water absorption well overflows into the connection port and the water sump from the small water absorption well, and coal slime in the overflowing sewage is blocked by a waterproof dike in the water sump;
s2: the sewage is treated in an aboveground sewage plant.
Further, the main water sump or the auxiliary water sump in S1 is periodically and alternately drained from the single sump, and the periodically and alternately drained from the single sump is realized by additionally arranging a valve on the pipeline.
Further, the water pump at the top of the water absorption well described in S1 uses high-pressure water in the downhole high-pressure water pipe as cooling water.
Further, the end of the extension pipe in S1 is located at a distance of 50m from the well.
Further, in S1, the distance from the end of the additional pipe to the waterproof bank is 1 m.
Further, the sewage treatment in the S2 comprises the steps of firstly precipitating through a sand-settling and horizontal-flow sedimentation tank, an inclined-tube sedimentation tank and a valveless filter, then entering a rake-type concentration tank for concentration after precipitation, then transporting to a filter pressing workshop through a sludge screw pump, and finally loading and transporting to the outside for sale after filter pressing.
Compared with the prior art, the invention has the beneficial effects that:
1. after the sewage is discharged to the small water absorption well, the sewage is discharged to the well while stirring (namely, the sediment in the water sump is stirred to be suspended in the water body in the water sump and is directly discharged to the ground by the water pump), so that the sewage is discharged and cleaned immediately, and the sewage is prevented from being deposited in the small water absorption well and the added pipeline;
2. sewage is discharged into the connecting port and the small water-absorbing well from the additionally-arranged pipeline, so that coal slime in the sewage is prevented from being deposited in the sump;
3. the waterproof dike prevents sewage in the additionally-arranged pipeline from flowing back to the sump when being discharged, and water in the small water absorption well overflows to the sump when the water amount is increased, so that coal slime in the sewage overflowing out is intercepted by the waterproof dike and is prevented from entering the sump;
4. the sewage treatment device directly discharges sewage from the underground to the well, sewage treatment is carried out on the well, sewage treatment equipment does not need to be installed underground, and sewage treatment is not needed underground, so that the problems that the underground sewage treatment is large in equipment occupation, installation space needs to be dug, the underground sewage treatment operation difficulty is large, the operation danger coefficient is large, the working procedures are multiple, and the working efficiency is low are solved;
5. the two water bins are used alternately, and the two water bins can mutually impact deposited coal slime.
Drawings
FIG. 1 is a schematic view of a sump according to the present invention;
FIG. 2 is a schematic view of a water-absorbing well according to the present invention;
in the figure: 1-drain pipe, 2-main sump, 3-auxiliary sump, 4-add pipeline, 5-connection port, 6-small water-absorbing well, 7-stirrer, 8-water pump, 9-water dam, 10-valve, 11-main lane.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: a dynamic cleaning method for an underground sump comprises the following steps:
s1: discharging sewage dynamically; underground sewage is discharged to a connection port 5 between a main sump 2 and an auxiliary sump 3 from a water discharge pipe 1 of a main roadway through an additional pipeline 4 in the main sump 2 and/or the auxiliary sump 3 through a water pump, then flows into a plurality of small water-absorbing wells 6 on one side of the connection port 5 from the connection port 5, the sewage discharged into the small water-absorbing wells 6 is immediately stirred by a stirrer 7 in the small water-absorbing wells 6 and is directly discharged to the well through a water pump 8 at the top of the small water-absorbing wells 6, so that the dynamic cleaning of the sump which is discharged and cleaned immediately is realized, the sewage is directly discharged to the well, and the coal slime in the sewage is prevented from being deposited in the sump or the small well;
when the sewage discharge amount is increased, sewage flowing into the small water absorption well 6 overflows from the small water absorption well 6 to the connecting port 5 and the water sump, and coal slime in the overflowing sewage is blocked and intercepted by a waterproof dike 9 in the water sump, so that the coal slime is greatly reduced from overflowing into the water sump;
s2: the sewage is treated in an aboveground sewage plant.
The main water sump 2 or the auxiliary water sump 3 in the S1 is used for periodically and alternately discharging water in a single sump, and the periodically and alternately discharging water in the single sump is realized by additionally arranging a valve 10 on the pipeline 4; for example, water enters from the main water sump 2, reaches the water pump water suction well 6 through the once arranged pipeline 4, and then reaches the auxiliary water sump 3; the coal slime deposited by the impact of the water flow direction can be washed by changing the water flow direction to the water entering from the auxiliary water bin 3 after a certain period.
The water pump 8 at the top of the small water absorption well 6 in the S1 adopts high-pressure water (clean) in the underground high-pressure water pipe as cooling water and utilizes the high-pressure water (clean) to replace sewage in the original water sump as the cooling water of the water pump, thereby increasing the sewage discharge capacity of the water pump, reducing the accident rate of the water pump, preventing coal slime in the sewage from blocking a cooling pipeline in the running process of the water pump or preventing the coal slime from being condensed between packing and between the packing and a shell, forming a gap, and avoiding the possibility of packing burning; air intake, water reduction or pump failure.
The distance from the end of the extension pipe 4 to the water absorption small well 6 in S1 is 50 m.
In the S1, the tail end of the additional pipeline 4 extends out of the waterproof dike by 1 m; be equipped with the mounting hole on the breakwater 9, the breakwater 9 is installed in the mounting hole, and when sewage was discharged from the end of addding pipeline 4, the breakwater 9 stopped sewage and flows back to in the sump.
The sewage treatment in the S2 comprises the steps of firstly precipitating through a sand-settling and horizontal-flow sedimentation tank, an inclined-tube sedimentation tank and a valveless filter, concentrating through a rake-type concentration tank after precipitation, transporting to a filter-pressing workshop through a sludge screw pump, and loading and transporting outside for sale after filter-pressing; the whole treatment process works on the ground, does not need to purchase equipment or arrange teams, and is economic and environment-friendly.
Sewage is arranged to contact mouth 5 from drain pipe 1 through addding pipeline 4 in the sump, and sewage does not flow through the sump, prevents the deposit of coal slime in the sewage in the sump.
This application is by original pump drainage of opening after reaching certain water level, and the adjustment is balanced drainage, arranges promptly clearly promptly (promptly after sewage row to the little well 6 that absorbs water, in time with the sewage in the little well 6 that absorbs water arrange to the well on the side of stirring), and the day is clear day knot, reaches the clear storehouse effect of developments, directly arranges sewage to the well for the water level in the little well 6 that absorbs water remains the low water level all the time, prevents that the coal slime is at the little well 6 that absorbs water and add the interior deposit of pipeline 4.
By utilizing the characteristic that the water pump 8 in the water sump is suitable for coal mines to convey mine water with the solid particle content not more than 1.5% and the granularity less than 0.5 mm, the sewage in the small water-absorbing well 6 is directly discharged to the well through the water pump 8.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A dynamic cleaning method for an underground sump is characterized by comprising the following steps: the method comprises the following steps:
s1: discharging sewage dynamically; underground sewage is discharged to a connection port (5) between a main water sump (2) and an auxiliary water sump (3) from a drain pipe (1) of a main roadway through an additional pipeline (4) in the main water sump (2) and/or the auxiliary water sump (3) through a water pump, then flows into a plurality of small water-absorbing wells (6) on one side of the connection port (5) from the connection port (5), and the sewage discharged into the small water-absorbing wells (6) is immediately stirred by a stirrer (7) in the small water-absorbing wells (6) and is directly discharged to the well through a water pump (8) at the top of the small water-absorbing wells (6), so that the dynamic cleaning of the sump which is discharged and cleaned immediately is realized, the sewage is directly discharged to the well, and the coal slime in the sewage is prevented from being deposited in the water sump or the small well;
when the sewage discharge amount is increased, sewage flowing into the small water absorption well (6) overflows into the connection port (5) and the water sump from the small water absorption well (6), and coal slime in the overflowing sewage is blocked by a waterproof dike (9) in the water sump;
s2: the sewage is treated in an aboveground sewage plant.
2. The dynamic cleaning method for the underground water sump according to claim 1, characterized in that: the main water sump (2) or the auxiliary water sump (3) in the S1 is used for periodically alternating single-sump drainage, and the periodically alternating single-sump drainage is realized by additionally arranging a valve (10) on the pipeline (4).
3. The dynamic cleaning method for the underground water sump according to claim 1, characterized in that: the water pump (8) at the top of the small water absorption well (6) in S1 adopts high-pressure water in a downhole high-pressure water pipe as cooling water.
4. The dynamic cleaning method for the underground water sump according to claim 1, characterized in that: and in the S1, the distance from the tail end of the additional pipeline (4) to the small water absorption well (6) is 50 m.
5. The dynamic cleaning method for the underground water sump according to claim 1, characterized in that: and in the S1, the distance from the tail end of the additional pipeline (4) to the waterproof embankment (9) is 1 m.
6. The dynamic cleaning method for the underground water sump according to claim 1, characterized in that: and S2, settling the sewage by a sand settling and horizontal flow sedimentation tank, an inclined tube sedimentation tank and a valveless filter, concentrating the sediment in a rake type concentration tank, conveying the concentrated sediment to a filter pressing workshop by a sludge screw pump, and carrying out filter pressing, loading the filter, transporting the filter out and selling the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987618.7A CN112127944B (en) | 2020-09-18 | 2020-09-18 | Underground sump dynamic sump cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987618.7A CN112127944B (en) | 2020-09-18 | 2020-09-18 | Underground sump dynamic sump cleaning method |
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| Publication Number | Publication Date |
|---|---|
| CN112127944A true CN112127944A (en) | 2020-12-25 |
| CN112127944B CN112127944B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010987618.7A Active CN112127944B (en) | 2020-09-18 | 2020-09-18 | Underground sump dynamic sump cleaning method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670512A (en) * | 2013-12-13 | 2014-03-26 | 西安钧泰环保设备工程有限公司 | Underwater continuous automatic dredging system of underground oversized water sump of mine |
| CN206267870U (en) * | 2016-11-28 | 2017-06-20 | 山西晋城无烟煤矿业集团有限责任公司 | Backpulsing underground main drainage system |
| CN107399795A (en) * | 2017-08-30 | 2017-11-28 | 中国恩菲工程技术有限公司 | Mine down-hole continuous drainage sludge drainage system |
| CN109306871A (en) * | 2018-12-04 | 2019-02-05 | 山西拓普沃特工程技术有限公司 | A kind of system and method increasing mine sump capacity |
| CN208732766U (en) * | 2018-07-12 | 2019-04-12 | 安徽铜冠（庐江）矿业有限公司 | A kind of down-hole comprehensive utilization system of water source |
| CN210637109U (en) * | 2019-07-29 | 2020-05-29 | 河北钢铁集团矿业有限公司 | Underground mine underground temporary drainage structure |
-
2020
- 2020-09-18 CN CN202010987618.7A patent/CN112127944B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670512A (en) * | 2013-12-13 | 2014-03-26 | 西安钧泰环保设备工程有限公司 | Underwater continuous automatic dredging system of underground oversized water sump of mine |
| CN206267870U (en) * | 2016-11-28 | 2017-06-20 | 山西晋城无烟煤矿业集团有限责任公司 | Backpulsing underground main drainage system |
| CN107399795A (en) * | 2017-08-30 | 2017-11-28 | 中国恩菲工程技术有限公司 | Mine down-hole continuous drainage sludge drainage system |
| CN208732766U (en) * | 2018-07-12 | 2019-04-12 | 安徽铜冠（庐江）矿业有限公司 | A kind of down-hole comprehensive utilization system of water source |
| CN109306871A (en) * | 2018-12-04 | 2019-02-05 | 山西拓普沃特工程技术有限公司 | A kind of system and method increasing mine sump capacity |
| CN210637109U (en) * | 2019-07-29 | 2020-05-29 | 河北钢铁集团矿业有限公司 | Underground mine underground temporary drainage structure |
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| CN112127944B (en) | 2023-04-21 |
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