CN115432794A - Underground coal slime water treatment process and control method - Google Patents
Underground coal slime water treatment process and control method Download PDFInfo
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- CN115432794A CN115432794A CN202210989815.1A CN202210989815A CN115432794A CN 115432794 A CN115432794 A CN 115432794A CN 202210989815 A CN202210989815 A CN 202210989815A CN 115432794 A CN115432794 A CN 115432794A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000003245 coal Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 42
- 239000008394 flocculating agent Substances 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims description 42
- 229920002401 polyacrylamide Polymers 0.000 claims description 17
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 14
- 235000019270 ammonium chloride Nutrition 0.000 claims description 14
- 125000000129 anionic group Chemical group 0.000 claims description 14
- 229940079593 drug Drugs 0.000 claims description 14
- 235000010413 sodium alginate Nutrition 0.000 claims description 14
- 229940005550 sodium alginate Drugs 0.000 claims description 14
- 239000000661 sodium alginate Substances 0.000 claims description 14
- 239000003250 coal slurry Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 6
- 239000003093 cationic surfactant Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 239000003153 chemical reaction reagent Substances 0.000 claims 2
- 125000001453 quaternary ammonium group Chemical group 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 150000003242 quaternary ammonium salts Chemical group 0.000 description 13
- 239000002245 particle Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000005065 mining Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an underground coal slime water treatment process and a control method, wherein the underground coal slime water control system comprises a sedimentation tank, a dosing system, a coal slime well-lifting system and a control system, a dosing barrel mixes a filter aid and a flocculating agent to prepare a solution, a detection system feeds back data measured by a concentration meter, an open channel flowmeter, a turbidity meter and a clear water layer height detector to the control system, and a control assembly controls the opening of an electromagnetic valve and the opening and closing of a plunger pump according to the fed-back data to realize automatic dosing and coal slime well-lifting. The efficient underground slime water treatment process has the characteristics of high automation degree, high efficiency and environmental protection, greatly reduces the labor intensity of workers, and realizes the unmanned operation of the whole process.
Description
Technical Field
The invention relates to the technical field of mechanical manufacturing, in particular to a process and a control method for treating underground slime water.
Background
China is rich in coal resources and complete in coal types, and is also the largest producing country and consuming country of coal in the world. Water is drained outwards during the coal mining process, water is in contact with coal and rocks during the mining process, and mine water generated by a series of reactions is the most discharged wastewater in the coal production process.
During the underground production process of a mine, a large amount of high-concentration slime water is generated and is gathered to a central pump room water sump from each production head surface at the bottom of the mine, and then is discharged to the ground for treatment, so that water circulation is formed and the slime water is reused. However, during the process of gathering coal slime water at each position of the well bottom in the central sump, due to natural sedimentation operation of water, a large amount of settled coal slime can be generated, the volume of the sump is gradually reduced, centralized treatment must be carried out every year in the early stage, the workload is large, and production is easily influenced.
At present, the treatment method of the slime water is to carry out solid-liquid separation, dehydration and recovery on the slime water by a filter pressing method, and a series of processes such as dosing, stirring, feeding, filter pressing and the like are needed to realize the solid-liquid separation, wherein the added drugs generally contain flocculating agents, so that the effect of the flocculating agents directly influences the final slime treatment effect, and the preparation and the selection of the medicinal agents in the slime water treatment process are very important.
Disclosure of Invention
Aiming at the prior art, the invention aims to provide an efficient underground coal slime water treatment process and a control method. The device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect of the present invention, a system for treating underground coal slurry water is provided, the system comprising:
the sedimentation tank is provided with a slime water inlet and a clear water outlet at the upstream and the downstream respectively, the longitudinal section of the sedimentation tank is triangular, and the included angle of the bottom is 40-45 degrees;
preferably, when the included angle of the bottom of the sedimentation tank is 43 degrees, the sedimentation effect is optimal.
The drug adding system comprises a drug storage barrel, and a drug is conveyed to an inlet of the sedimentation tank through a pipeline at an outlet at the lower end of the drug storage barrel;
preferably, store up the medicine bucket upper strata and divide into about two solitary storage medicine spaces for store filter aid and flocculating agent powder, when needs add the medicine, store up the medicine space about and get into below mixing stirring space through the transmission pipe with the medicine in proportion, add the water misce bene back, through the pipe-line transportation to the sedimentation tank entrance.
Coal slime well-lifting system, including plunger pump and coal slime pipeline, rise to the well through the coal slime pipeline with sedimentation tank bottom coal slime through the plunger pump.
Preferably, the slime water treatment system comprises a control system, and the control system comprises a data acquisition module, a control module and an electromagnetic valve.
Preferably, the data acquisition module comprises an open channel flowmeter and a concentration meter which are arranged at a coal slime water inlet, and a turbidity meter which is arranged at a clear water outlet; the electromagnetic valve is used for adding medicines;
the control module is respectively connected with the data acquisition module and the electromagnetic valve and comprises an industrial switch, a controller, a display and a frequency converter;
further preferably, the display is capable of displaying data collected in real time; an empirical model program is stored in the controller, and the electromagnetic valve is controlled by regulating and controlling the output frequency of the frequency converter to add medicine; the industrial computer is stored with an LSTM program;
further preferably, the device is connected with the electromagnetic valve through an industrial exchanger, a controller and a frequency converter, and the dosage is controlled through PID.
In a second aspect of the invention, a high-efficiency underground slime water treatment method is provided, which comprises the following steps:
the coal slime water enters the sedimentation tank from the sedimentation tank inlet, the chemical is added at the sedimentation tank inlet through a chemical adding system, after mixing, coal slime layering is realized in the sedimentation tank by the coal slime water, the coal slime is pumped to the ground through a coal slime well lifting system to be recycled after layering, and clean water enters the sump through the sedimentation tank outlet.
Preferably, the medicine adding amount is controlled by the detection data of the open channel flow meter, the concentration meter and the turbidimeter.
Preferably, the coal slime well raising is controlled by the detection data of the clear water layer height detector.
In a third aspect of the invention, a medicine for treating underground coal slime water is provided, and comprises a filter aid, a flocculating agent and sodium alginate.
Preferably, the filter aid is a cationic surfactant.
Further preferably, the cationic surfactant is quaternary ammonium salt octadecyl trimethyl ammonium chloride.
Preferably, the flocculant is an anionic polyacrylamide with a molecular weight of 600 ten thousand.
Preferably, the mass ratio of the anionic polyacrylamide to the quaternary ammonium salt octadecyl trimethyl ammonium chloride to the sodium alginate in the medicine is as follows: 1: (1.2-1.6): 0.1.
preferably, 35g of anionic polyacrylamide flocculant and 49g of quaternary ammonium salt octadecyl trimethyl ammonium chloride are required to be added into each ton of dry coal slime, the coal slime flocculation sedimentation effect is best, the depth of a clear water layer of a concentration tank can reach 1.5 m, the concentration of washing water is kept at 20g/L, and the closed circulation of primary washing water is realized.
Preferably, the filter aid is a polyhydroxy and multi-core complex cationic surfactant which is prepared by introducing effective components of various surfactants aiming at the characteristics of coal slurry in a coal preparation plant, can obviously change the surface tension of coal slurry particles, and presents a membrane with a lotus leaf effect on the surfaces of the coal slurry particles, so that surface water and interstitial water of the coal slurry particles are rapidly separated out, the working efficiency of a filter press is greatly improved, and meanwhile, the filter aid has the function of a coagulant, can replace the coagulant to be matched with a flocculating agent for use, can reduce the use of the flocculating agent, and obviously reduces the coal preparation cost; the cationic filter aid has electric charge, after hydrolysis, active groups are adsorbed to the surfaces of coal slime particles to neutralize the negative charges on the surfaces of the coal slime particles, a double electric layer of the coal slime particles is compressed, the absolute value of the electric potential is reduced, the repulsion among particles is overcome, the particles are stably removed, and the particles are mutually agglomerated and enlarged due to van der Waals force to form micro-flocs. The micro flocs further form larger floc particles through the adsorption and bridging action of a flocculating agent polyacrylamide. The larger flocs sink under the action of gravity, which is beneficial to accelerating the settling speed of the coal slime.
Preferably, the coal seam of the mine is thin, the fully-mechanized mining and fully-mechanized excavation production process is adopted, so that the content of gangue in raw coal is higher, the rocks of the top floor and the bottom floor of the local coal seam are argillized and belong to kaolin components, meanwhile, the treatment process of coarse slime water in a coal preparation plant is complex, the argillization degree of the slime is serious, the ash content is high, the granularity of tail coal is small, the viscosity is high, and the slime in the slime water can be quickly and effectively treated by adding medicines.
The invention has the beneficial effects that:
the invention innovatively solves the automatic steady-flow sedimentation process at the bottom of the well, realizes the automatic pre-sedimentation of the slime water, ensures that the water body entering the sump reaches the minimum concentration, and solves the problem of sump sludge. Meanwhile, the system has the characteristics of high automation degree, high efficiency and environmental protection, the labor intensity of workers is greatly reduced, the full-flow unmanned operation is realized, and the settled coal slime can be filter-pressed and sold without being cleaned by underground operation of personnel.
Drawings
FIG. 1: an underground coal slime water treatment system;
FIG. 2: a dispensing barrel in an underground coal slime water treatment system;
FIG. 3: longitudinal section of the settling tank.
The system comprises a flow meter of an open channel 1, a control system 2, an electromagnetic valve 3, a medicine storage barrel 4, a sedimentation tank 5, a turbidimeter 6, a plunger pump 7 and an angle alpha-the bottom included angle of the longitudinal section of the sedimentation tank.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
As described in the background art, in the prior art, in the process that high-concentration coal slime water generated in the underground production process of a mine is collected to a water sump of a central pump room, the coal slime in a water body naturally settles to cause gradual reduction of a water sump solvent, and the coal slime water needs to be treated regularly and intensively every year.
In order to make the technical solutions of the present application more clearly understood by those skilled in the art, the technical solutions of the present application will be described in detail below with reference to specific embodiments.
The devices used in the embodiments of the present invention are all conventional devices in the art, and all of them are commercially available, and are not described herein again.
Example 1: underground coal slime water treatment system
The coal slurry water treatment system structure, as shown in fig. 1, includes:
a sedimentation tank 5, wherein a slime water inlet and a clear water outlet are respectively arranged at the upstream and the downstream of the sedimentation tank 5, the longitudinal section of the sedimentation tank 5 is triangular, and the included angle of the bottom is 43 degrees, as shown in figure 3;
the dosing system comprises a medicine storage barrel 4, and a medicine is conveyed to an inlet of a sedimentation basin 5 through a pipeline at an outlet at the lower end of the medicine storage barrel 4;
the coal slime well-raising system comprises a plunger pump 7 and a coal slime pipeline, and the coal slime at the bottom of the sedimentation tank 5 is raised to the well through the coal slime pipeline by the plunger pump 7;
the control system 2 comprises a data acquisition module, a control module and an electromagnetic valve 3. The data acquisition module comprises an open channel flowmeter 1 arranged at a coal slime water inlet, a concentration meter and a turbidity meter 6 arranged at a clear water outlet; the electromagnetic valve 3 is used for adding medicines; the control module is respectively connected with the data acquisition module and the electromagnetic valve 3, and comprises an industrial switch, a controller display and a frequency converter; the display can display data collected in real time; the controller is connected with the electromagnetic valve 3 through an industrial exchanger and a frequency converter, and the opening degree of the electromagnetic valve 3 is controlled to control the dosage; meanwhile, the controller is connected with the plunger pump 7 through an industrial exchanger, and controls the switch of the plunger pump 7 to control the coal slime to ascend the well.
Example 2: a high-efficiency underground coal slime water treatment method specifically comprises the following steps:
coal slime enters the sedimentation tank 5 from the inlet of the sedimentation tank 5, the chemical is added at the inlet of the sedimentation tank 5 through a chemical adding system, after mixing, coal slime layering is realized in the sedimentation tank 5, the layered coal slime is pumped to the ground through a coal slime well raising system for recycling, and clean water enters the sump through the outlet of the sedimentation tank 5. In the processing method, the medicine adding amount is controlled by detecting data of the open channel flowmeter 1, the concentration meter and the turbidimeter 6.
The open channel flowmeter 1, the concentration meter and the turbidimeter 6 are used for monitoring various parameters in the sedimentation tank 5 in real time and feeding back the parameters to the control system, and the control system is used for adjusting the opening of the electromagnetic valve 3 according to the measured parameters; the clear water layer height detector monitors the height of the clear water layer in the sedimentation tank 5 in real time and feeds the height back to the control system, and the control system controls the plunger pump 7 according to the measured parameters.
The medicine used in the method is stored in a medicine storage barrel 4, the medicine comprises a filter aid, a flocculating agent and sodium alginate, the filter aid is quaternary ammonium salt octadecyl trimethyl ammonium chloride, and the flocculating agent is anionic polyacrylamide with the molecular weight of 600 ten thousand. The mass ratio of the anionic polyacrylamide, the quaternary ammonium salt octadecyl trimethyl ammonium chloride and the sodium alginate in the medicine is as follows: 1:1.4:0.1, adding 35g of anionic polyacrylamide flocculant, 49g of quaternary ammonium salt octadecyl trimethyl ammonium chloride and 3.5g of sodium alginate into each ton of dry coal slime.
Example 3: efficient underground coal slime water treatment method
The difference between the present embodiment and embodiment 2 is that the mass ratio of the anionic polyacrylamide, quaternary ammonium salt octadecyl trimethyl ammonium chloride and sodium alginate in the medicine is 1: 0.1, adding 35g of anionic polyacrylamide flocculant, 56g of quaternary ammonium salt octadecyl trimethyl ammonium chloride and 3.5g of sodium alginate into each ton of dry coal slime, and the other technical details are the same as those in the example 2.
Example 4: efficient underground slime water treatment method
The difference between the embodiment and the embodiment 2 is that the mass ratio of the anionic polyacrylamide, the quaternary ammonium salt octadecyl trimethyl ammonium chloride and the sodium alginate in the medicine is as follows: 1.2, adding 35g of an anionic polyacrylamide flocculant, 42g of quaternary ammonium salt octadecyl trimethyl ammonium chloride and 3.5g of sodium alginate into each ton of dry coal slime, wherein other technical details are the same as those in example 2.
Comparative example 1
The difference between the comparative example and the example 2 is that the drug is anionic polyacrylamide, 35g of anionic polyacrylamide flocculant is added into each ton of dry coal slime, and the other technical details are the same as those in the example 2.
Comparative example 2
The difference between the comparative example and the example 2 is that the medicine is quaternary ammonium salt octadecyl trimethyl ammonium chloride, 49g of quaternary ammonium salt octadecyl trimethyl ammonium chloride is added into each ton of dry coal slime, and the other technical details are the same as the example 2.
Comparative example 3
The difference between the comparative example and the example 2 is that the medicine is sodium alginate, 3.5g of sodium alginate is added into each ton of dry coal slime, and other technical details are the same as those in the example 2.
Comparative example 4
The comparative example is different from example 2 in that the pharmaceutical products are polyacrylamide and dimethyldiallylammonium chloride (2).
Examples of the experiments
The treatment methods provided in examples 2-4 and comparative examples 1-4 were used to treat the slime water and analyze the height of the clear water layer and the concentration of the wash water in the settling tank.
TABLE 1
| Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Height m of clear water layer | 1.5 | 0.91 | 0.84 | 0.3 | 0.4 | 0.1 | 0.7 |
| Concentration of washing water g/L | 20.0 | 32.1 | 31.2 | 51.0 | 43.5 | 73.2 | 35.0 |
As can be seen from the data in Table 1, when the medicines in example 2 are polyacrylamide, quaternary ammonium salt octadecyl trimethyl ammonium chloride and sodium alginate, the height of the clear water layer is obviously increased, the washing water concentration is obviously reduced, and compared with the existing medicine composition in comparative example 4, the height of the clear water layer is also obviously increased, and the washing water concentration is obviously reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. A system for treating underground coal slurry water, comprising:
the sedimentation tank is provided with a slime water inlet and a clear water outlet at the upstream and the downstream respectively, the longitudinal section of the sedimentation tank is triangular, and the included angle of the bottom of the sedimentation tank is 40-45 degrees;
the drug feeding system comprises a drug storage barrel, and a drug is conveyed to an inlet of the sedimentation tank through a pipeline at an outlet at the lower end of the drug storage barrel;
coal slime well-lifting system, including plunger pump and coal slime pipeline, through the plunger pump with sedimentation tank bottom coal slime by the coal slime pipeline rise to the well.
2. The downhole coal slurry processing system of claim 1 further comprising a control system, said control system comprising a data acquisition module, a control module and a solenoid valve;
the data acquisition module comprises an open channel flowmeter and a concentration meter which are arranged at a coal slime water inlet, and a turbidity meter and a height detector which are arranged at a clear water outlet;
the electromagnetic valve is arranged on an outlet pipeline of the medicine storage barrel and is used for controlling the dosage of the medicine storage barrel to the sedimentation tank;
the control module comprises an industrial switch, a controller, a display and a frequency converter; the controller receives data of the data acquisition module, displays the data acquired in real time in the display, is connected with the electromagnetic valve through the industrial switch and the frequency converter, and controls the opening of the electromagnetic valve to control the dosage; meanwhile, the controller is connected with the plunger pump through an industrial exchanger, and controls the switch of the plunger pump to control the coal slime well raising.
3. A method for treating coal slurry water in a well by the system of claim 1 or 2, comprising the steps of:
the coal slime enters the sedimentation tank from the sedimentation tank inlet, meanwhile, the medicine is added at the sedimentation tank inlet through the medicine adding system, after mixing, coal slime layering is realized in the sedimentation tank, the layered coal slime is pumped to the ground through the coal slime well raising system for recycling, and clean water enters the sump through the sedimentation tank outlet.
4. The method of claim 3 wherein the amount of chemicals added is controlled by the data detected by an open channel flow meter, a concentration meter, and a turbidity meter; and controlling the coal slime to rise through a clear water layer height detector.
5. The medicine for treating underground coal slime water is characterized by comprising a flocculating agent, a filter aid and sodium alginate, wherein the flocculating agent, the filter aid and the sodium alginate are in a mass ratio of 1: (1.2-1.6): 0.1.
6. the reagent of claim 5, wherein the filter aid is a cationic surfactant and the flocculant is an anionic polyacrylamide.
7. The chemical for treating coal slurry in a well as the preparation method of claim 6, wherein the cationic surfactant is quaternary ammonium octadecyl trimethyl ammonium chloride.
8. The reagent for treating coal slurry downhole as claimed in claim 6, wherein said anionic polyacrylamide has a molecular weight of 600 to 800 ten thousand.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241918A (en) * | 2012-08-07 | 2013-08-14 | 江苏绿威环保科技有限公司 | Intelligent conditioning system for deep dewatering of sludge |
| CN104261538A (en) * | 2014-09-30 | 2015-01-07 | 安徽理工大学 | Hydrophobic agglomeration, sedimentation and clarification method for slime water |
| CN210595405U (en) * | 2019-08-14 | 2020-05-22 | 淄博矿业集团有限责任公司岱庄煤矿 | Mine waste water is handled automatic reagent feeding system in pit |
| CN216273516U (en) * | 2021-12-03 | 2022-04-12 | 兖矿能源集团股份有限公司 | High-turbidity mine water treatment device under coal mine |
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- 2022-08-18 CN CN202210989815.1A patent/CN115432794B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241918A (en) * | 2012-08-07 | 2013-08-14 | 江苏绿威环保科技有限公司 | Intelligent conditioning system for deep dewatering of sludge |
| CN104261538A (en) * | 2014-09-30 | 2015-01-07 | 安徽理工大学 | Hydrophobic agglomeration, sedimentation and clarification method for slime water |
| CN210595405U (en) * | 2019-08-14 | 2020-05-22 | 淄博矿业集团有限责任公司岱庄煤矿 | Mine waste water is handled automatic reagent feeding system in pit |
| CN216273516U (en) * | 2021-12-03 | 2022-04-12 | 兖矿能源集团股份有限公司 | High-turbidity mine water treatment device under coal mine |
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