CN1752411A - Technique of mine flyash making thick liquid, delivering and injecting thick liquid - Google Patents
Technique of mine flyash making thick liquid, delivering and injecting thick liquid Download PDFInfo
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- CN1752411A CN1752411A CN 200510044841 CN200510044841A CN1752411A CN 1752411 A CN1752411 A CN 1752411A CN 200510044841 CN200510044841 CN 200510044841 CN 200510044841 A CN200510044841 A CN 200510044841A CN 1752411 A CN1752411 A CN 1752411A
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Abstract
The invented technological process includes the following steps: adding water into electric power plant fly ash in the storage tower, making volume ratio of water and fly ash be 8:1, utilizing slag slurry pump to convey the water-ash mixture into settling pit of air-shaft slurry-injecting station by means of long-distance pipeline to make precipitation and storage, filtering by utilizing filter-tank of air-shaft slurry-injecting station, back feeding the filtered clear water into electric power plant for reutilization, when the downhole has need of injecting slurry, feeding high-pressure water into stirring pool of slurry-injecting station, after the required water-ash ratio is reached, adding fly ash additive, after the slurry concentration is reached to defined concentration, conveying the slurry to the required place by means of slurry-injecting pipeline.
Description
(1) technical field:
The present invention relates to the slurrying of flyash in the colliery, defeated slurry and grouting process.
(2) background technology:
Flyash activity is lower, and is as sand, when mixing with water, almost not affine with water; Suspended state is also bad in water, and the retardance of sinking is flowed, and blocking pipe very easily is difficult to realize that long distance carries, and has both made at big flood than more than 4: 1, is having under the pump pressure, and horizontal transport distance is also lacked, and is serious to transducer wall ' s abrasion.After simple coal ash pulp enters the goaf, there is the flyash about 1/4 to trickle everywhere with water, bring great negative effect for the down-hole, mine, make the tunnel be subjected to water to dash distortion, destroy pillar, stop up the gutter, increase displacement and the wearing and tearing drainage pump and the gutter of mine, even caused the part roadway floor to protrude, can't use the locomotive transportation, many mines are just because of can't solving this negative effect of simple coal ash pulp, and inactive flyash filling.And the flyash of staying the goaf is even without flowing away, and also as both adhesion of a beach loose sand, can not stop and leak out, and the ability of heat transfer, power transmission is very weak.Therefore, the mine of the simple flyash of present many uses just removes the landfill refuse from the angle that reduces the flyash environmental pollution, is difficult to really the alternative loess of its filler as preciousness, cement be done engineering and used.
(3) summary of the invention:
The present invention is directed to the deficiencies in the prior art, a kind of little, as can to grow distance conveying coal ash pulp mine flyash slurrying, defeated slurry and grouting process of polluting is provided.
The present invention adopts following solution:
This technology is that flying ash in electric power plant is being stored Ta Neijia water, making water ash volume ratio is 8: 1, utilize the slag stock pump to be transported to through long distance line that precipitation stores in the sedimentation basin at ventilating shaft slip casting station, and filter through the filtering ponds at ventilating shaft slip casting station, clear water after the filtration is sent power plant back to and is utilized again, dashes to jar stirring pool at slurry station, after reaching the water/binder ratio that needs with water under high pressure when the down-hole needs jar slurry, add the flyash additive, stir the concentration that reaches regulation after grouting pipeline arrives the place to use.
The flyash additive adopts sand-lime adhesion agent or fire-prevention extinguishing agent.Adding proportion is the 1-8 ‰ of slurry volume cubic number.
The present invention has reduced the pollution of near coal-mine flying dust in the ground operation process, can grow distance and carry coal ash pulp, makes coal ash pulp be used for the engineering use by adding the flyash additive.
(4) description of drawings
Accompanying drawing is a process chart of the present invention.
Wherein: 1, slag stock pump, 2, electrostatic precipitator, 3, ventilating shaft slip casting station, 4, sedimentation basin, 5, filtering ponds, 6, clarified water pump, 7, transfer pipeline, 8, water return pipeline, 9, stirring pool
(5) specific embodiment:
Accompanying drawing has provided process chart of the present invention.By among the figure as can be known, this technology is to store the other slag stock pump room of building, grey storehouse in power plant, utilize slag stock pump 1 that the buck of electrostatic precipitator 2 is transported to ventilating shaft slip casting station 3 by pipeline, build sedimentation basin 4 and filtering ponds 5 at ventilating shaft slip casting station, clear water after the filtration is sent power plant back to by clarified water pump 6 and is utilized again, flying ash in electric power plant is store after grey storehouse adds water through power plant, it with volume ratio 8: 1 water/binder ratio, pipeline through reaching 2000m is transported to precipitation storage in the slip casting sedimentation basin 4 by pump pressure, when needing jar slurry, the down-hole dashes to jar slip casting pond at slurry station with water under high pressure, after reaching the water/binder ratio that needs, add the flyash additive, stir the concentration that reaches regulation after grouting pipeline arrives the place to use.
Between power plant and slip casting station, water of coal ash transfer pipeline 7 and clear water water return pipeline 8 have been set up, fly ash in electric power plant water flows to the slip casting station sedimentation basin by transfer pipeline, the clear water that goes out through sedimentation and filtration is pressed into water return pipeline 7 by clarified water pump 6, again utilized by power plant, formed the circulating system of water of coal ash and backwater.The flyash of precipitation uses for slip casting in sedimentation basin 4 and the filtering ponds 5, open the hydraulic giant pump during slip casting, water gunslinging stream precipitation, substantially by volume water: the ratio of ash=1: 1 is made slurries, slurries are discharged to stirring pool 9 or grey ditch through foul water pump again, inject the down-hole by upright hole grouting pipeline and down-hole pipe-line system and need starch place (during injecting glue body mud, grey slurries flow to stirring pool, inject the down-hole after adding water glass and stirring).
The flyash additive has only with after flyash and the abundant hybrid reaction of water become glue, and what can make just that coal ash pulp produces " activation, aquation, sliming " in the shortest time three changes effects, coal body is produced the effect that adheres to, wraps, and plays the effect of oxygen barrier cooling.Therefore, the adding technology of flyash additive is the important step that guarantees its result of use.The flyash additive adopts sand-lime adhesion agent or fire-prevention extinguishing agent.The addition manner of flyash additive is divided into the ground interpolation and two kinds of interpolations are moved in the down-hole, is determined by the purpose of ore deposit side's jar slurry, the distance in jar slurry place and the difference of slip casting condition.
The flyash additive adopts following two kinds of mechanical addition manners during ground slurry preparing:
1, on mixer, arranges vibrating screw automatic blanking mechanism
A small-sized eccentric wheel vibrating screw automatic blanking machine is installed on the mixer that stirring pool is provided for oneself, this machine is provided with material-storing box, capacity is 10-100Kg, the material-storing box lower end is a screw feeder structure, rotation along with screw rod, the powder-material agent is transported to blanking just on the heart wheel vibrosieve, thereby finish the automatic blanking process, the quantity of blanking is finished by the rotational speed regulation control of screw mechanism.The big-and-middle-sized modernized colliery that is fit to the slip casting very well equipped.
Adding proportion is then according to the volume and the water/binder ratio in slip casting pond, press the quantity of the Mass Calculation flyash additive of the volume of slurries and flyash, the 2-8 ‰ that is generally the slurry volume cubic number is advisable, press the blanking velocity that mixer stirs two time set flyash additives back and forth, the step pitch of adjusting the screw rod motor gets final product.
Water/binder ratio, times line requirement by the design of ore deposit square tube line, according to the quality of flyash, the relative distance in actual slip casting place should satisfy in the scope of 1-10 times of times line, and then water/binder ratio can be adjusted to, 1: 0.5-0.7 is advisable, if flyash is wetter, then the flyash amount can suitably be added, but should not be above 1: 0.8, when flyash was second-rate, the addition of flyash additive should suitably be heightened the 1-8 ‰ to the slurry volume cubic number.
2, at pulp feeding port location arrangements vibrating screw automatic blanking machine
Do not have the middle-size and small-size mine of mixer for some, the vibrating screw automatic blanking machine can be installed in feed opening position, slip casting pond yet, according to the blanking velocity of water/binder ratio and following slurry speed adjustment flyash additive, to reach coupling preferably.Impact and the rotation of utilization in pipe conveying procedure makes flyash, water and flyash additive finish course of reaction automatically in course of conveying.
Adding proportion is according to the volume and the water/binder ratio in slip casting pond, presses the quantity of the Mass Calculation flyash additive of the volume of slurries and flyash, and the 2-8 ‰ that is generally the slurry volume cubic number is advisable.
Water/binder ratio is according to the quality of flyash, the relative distance in actual slip casting place should satisfy in the scope of 1-10 times of times line, then water/binder ratio can be adjusted to, 1: 0.5-0.7 is advisable, if flyash is wetter, then the flyash amount can suitably be added, but should not be above 1: 0.8, when flyash was second-rate, the addition of flyash additive should suitably be heightened the 1-8 ‰ to the slurry volume cubic number.
According to the induction system classification and the service condition of the mud that uses, a jar slurry can adopt following dual mode:
Concentrate a jar slurry: establishing in the main ventilating shaft coal column in industry place, ground and concentrate a jar slurry station, is full ore deposit or ore deposit one wing service, the slurry transportation system.
Dispersion tank slurry: ground is along the bearing hole pattern of drilling, and the subregion jar slurry of drilling is full ore deposit or a subregion service, and ground is provided with the subregion slurry transportation systems at a plurality of jars of slurry stations.
The arrangement of grouting pipeline has two kinds of " L " shape and stairsteppings.The advantage that " L " shape is arranged is a concentration of energy, can make full use of natural pressure head, makes pipeline have bigger slip casting ability, and is all simpler at aspects such as installation, maintenance, management.Shortcoming is to increase the mud pressure head with well depth also to increase thereupon, inclined tube peace pipe contact position pressure maximum, when its pressure near or when surpassing pipeline compressive strength, will collapse run affairs so.The L shaped superficial part grouting pipeline that is applicable to adopts stairstepping to arrange at deep-well and is better than " L " shape layout.The mine grouting pipeline adopts the nothing of diameter 108mm-159mm to meet steel pipe to pass through ventilating shaft near ground power plant stores grey storehouse, and following arm behind the down-hole can meet steel pipe with the nothing of diameter 108mm or 70mm, also can adopt high-pressure hose.
Claims (3)
1, the slurrying of a kind of mine flyash, defeated slurry and grouting process, it is characterized in that: this technology is that flying ash in electric power plant is being stored Ta Neijia water, making water ash volume ratio is 8: 1, utilize the slag stock pump to be transported to through long distance line that precipitation stores in the sedimentation basin at ventilating shaft slip casting station, and filter through the filtering ponds at ventilating shaft slip casting station, clear water after the filtration is sent power plant back to and is utilized again, when needing jar slurry, the down-hole dashes to jar stirring pool at slurry station with water under high pressure, after reaching the water/binder ratio that needs, add the flyash additive, stir the concentration that reaches regulation after grouting pipeline arrives the place to use.
2, mine flyash according to claim 1 slurrying, defeated slurry and grouting process, it is characterized in that: described flyash additive adding proportion is the 1-8 ‰ of slurry volume cubic number.
3, mine flyash according to claim 1 slurrying, defeated slurry and grouting process is characterized in that: the arrangement of described grouting pipeline has two kinds of " L " shape and stairsteppings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100448413A CN100425798C (en) | 2005-10-08 | 2005-10-08 | Technique of mine flyash making thick liquid, delivering and injecting thick liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100448413A CN100425798C (en) | 2005-10-08 | 2005-10-08 | Technique of mine flyash making thick liquid, delivering and injecting thick liquid |
Publications (2)
| Publication Number | Publication Date |
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| CN1752411A true CN1752411A (en) | 2006-03-29 |
| CN100425798C CN100425798C (en) | 2008-10-15 |
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| CNB2005100448413A Expired - Fee Related CN100425798C (en) | 2005-10-08 | 2005-10-08 | Technique of mine flyash making thick liquid, delivering and injecting thick liquid |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114316A (en) * | 2010-12-22 | 2011-07-06 | 北京林丰源生态科技有限公司 | Fire proofing and extinguishing agent composite for mine and preparation and use method thereof |
| CN103029218A (en) * | 2012-12-25 | 2013-04-10 | 湖南银源投资股份有限公司 | Powder dust conveying method and system device for powder dust field |
| CN103147705A (en) * | 2013-03-17 | 2013-06-12 | 徐州雷曼机械科技有限公司 | Cast-in-place pile sludge treatment equipment with sludge making and long-distance deslagging functions |
| CN104929657A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Grouting system for baseboard aquifer |
| CN106939592A (en) * | 2017-03-16 | 2017-07-11 | 神华集团有限责任公司 | Thermal power plant ash disposal area goes out dust collecting method |
| CN108590750A (en) * | 2018-07-09 | 2018-09-28 | 中国矿业大学 | A kind of flyash and the method for aqua with high salt disposition |
| CN109352829A (en) * | 2018-11-19 | 2019-02-19 | 大同煤矿集团有限责任公司 | A kind of mining grouting system and construction technology |
| CN110725686A (en) * | 2019-11-07 | 2020-01-24 | 淮南矿业(集团)有限责任公司 | Ultra-long distance slurry feeding and grouting method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU213980B (en) * | 1989-04-25 | 1997-11-28 | Energiagazdalkodasi Intezet | Method for collecting, delivering and deponing slag and flue-dust arising in thermal power-stations |
| CN1064032A (en) * | 1990-04-25 | 1992-09-02 | 能源经济研究所 | The method of collecting from the coal-fired thermal power station, transporting and handling lime-ash, floating dirt and utilize its physics and chemical property simultaneously water saving, that ecological significance is arranged |
| CN1098386A (en) * | 1993-08-02 | 1995-02-08 | 辛会忠 | A kind of treatment method for coal washing water |
-
2005
- 2005-10-08 CN CNB2005100448413A patent/CN100425798C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114316A (en) * | 2010-12-22 | 2011-07-06 | 北京林丰源生态科技有限公司 | Fire proofing and extinguishing agent composite for mine and preparation and use method thereof |
| CN102114316B (en) * | 2010-12-22 | 2012-07-25 | 北京林丰源生态园林绿化工程有限公司 | Fire proofing and extinguishing agent composite for mine and preparation and use method thereof |
| CN103029218A (en) * | 2012-12-25 | 2013-04-10 | 湖南银源投资股份有限公司 | Powder dust conveying method and system device for powder dust field |
| CN103147705A (en) * | 2013-03-17 | 2013-06-12 | 徐州雷曼机械科技有限公司 | Cast-in-place pile sludge treatment equipment with sludge making and long-distance deslagging functions |
| CN103147705B (en) * | 2013-03-17 | 2015-10-28 | 徐州雷曼机械科技有限公司 | There is the filling pile slurry treatment facility of pulping and long-range deslagging function |
| CN104929657A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Grouting system for baseboard aquifer |
| CN106939592A (en) * | 2017-03-16 | 2017-07-11 | 神华集团有限责任公司 | Thermal power plant ash disposal area goes out dust collecting method |
| CN108590750A (en) * | 2018-07-09 | 2018-09-28 | 中国矿业大学 | A kind of flyash and the method for aqua with high salt disposition |
| CN109352829A (en) * | 2018-11-19 | 2019-02-19 | 大同煤矿集团有限责任公司 | A kind of mining grouting system and construction technology |
| CN110725686A (en) * | 2019-11-07 | 2020-01-24 | 淮南矿业(集团)有限责任公司 | Ultra-long distance slurry feeding and grouting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100425798C (en) | 2008-10-15 |
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