CN101592037A - The ground slurry preparing system that is used for preventing and extinguishing fire of coal mine - Google Patents
The ground slurry preparing system that is used for preventing and extinguishing fire of coal mine Download PDFInfo
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- CN101592037A CN101592037A CNA200910304321XA CN200910304321A CN101592037A CN 101592037 A CN101592037 A CN 101592037A CN A200910304321X A CNA200910304321X A CN A200910304321XA CN 200910304321 A CN200910304321 A CN 200910304321A CN 101592037 A CN101592037 A CN 101592037A
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Abstract
The present invention is a kind of ground slurry preparing system that is used for preventing and extinguishing fire of coal mine, pulping raw materials such as clay or flyash and water are fully merged, and concentration of hydraulic mixture is controlled.This system comprises end to end successively quantitative feed machine, ribbon conveyer, slurrying machine and filter pulp machine, wherein the slurrying facility have squirrel-cage cylinder and the drive unit thereof in the part immersion slurries case, the periphery of squirrel-cage cylinder is with screen pack and two vertical plasma discharge plates, the squirrel-cage cylinder be provided with a plurality of pulpboards that vertically stir interior week, said vertical plasma discharge plate and vertically stir pulpboard and all be symmetrically distributed along the circumference of squirrel-cage cylinder, be provided with the ororrhea head piece in the side of slurries case, discharge pipe is connected on the ororrhea head piece, the plasma discharge body is provided with the quantitative adding set of suspending agent, drop guide funnel is located at an end of squirrel-cage cylinder, and slag-drip opening is located at the side of squirrel-cage cylinder the other end.
Description
Technical field
The present invention relates to the preventing and extinguishing fire technology field of colliery freely burning fire, be specifically related to a kind of ground slurry preparing system that is used for preventing and extinguishing fire of coal mine.
Background technology
Grouting is one of conventional means in the fire extinguishing of present colliery, and it is that mud or the coal ash pulp that will prepare inject fire district, coal seam, realizes fire extinguishing by the cooling oxygen barrier.The preparation of mud is that pulping raw materials such as loess or flyash are mixed with water, imports grouting pipe after filtering.At present, the pulping process at surface grout injection station is: sweep away mud with giant on mound, make it flow into concentrate the slurry ditch, through strainer filtering, flow into slip agitating tank after removing foreign material, stir the back through mixer and import grouting pipeline.The method is because the water yield is uncontrollable, so the concentration of mud is also uncontrollable.Because the limited time that pulping raw material contacts with water, both merge inequality, still have a large amount of unfused earth in the dregs that leach, and not only effects on slurry making is not really desirable, and the utilization rate of pulping raw material is lower, slurrying continuously.In addition, Tu Chang and reserve pit floor space are big in the construction, investment is big, and the artificial slagging-off labour intensity height of filter screen, efficient are low.
Summary of the invention
The problem to be solved in the present invention provides a kind of ground slurry preparing system that is used for preventing and extinguishing fire of coal mine, can make pulping raw materials such as loess or flyash by this system and water fully merges, concentration of hydraulic mixture is controlled, and can in mud, add modified material, make it to form dytory.
The technical scheme that addresses the above problem is: the ground slurry preparing system that is used for preventing and extinguishing fire of coal mine that is provided comprises following equipment: quantitative feed machine, ribbon conveyer, slurrying machine and filter pulp machine, wherein
1) discharging opening of quantitative feed machine is positioned at the ribbon conveyer top, and the discharge end of ribbon conveyer is positioned at the top of slurrying machine feed hopper, and the discharge pipe of slurrying machine is communicated with the stock inlet of filter pulp machine;
2) the slurrying facility have a slurries case and part to immerse squirrel-cage cylinder and drive unit thereof in the slurries case, the periphery of squirrel-cage cylinder is with screen pack and two vertical plasma discharge plates, the squirrel-cage cylinder be provided with a plurality of pulpboards that vertically stir interior week, said vertical plasma discharge plate and vertically stir pulpboard and all be symmetrically distributed along the circumference of squirrel-cage cylinder, be provided with the ororrhea head piece in the side of slurries case, discharge pipe is connected on the ororrhea head piece, the plasma discharge body is provided with the quantitative adding set of suspending agent, drop guide funnel is located at an end of squirrel-cage cylinder, and slag-drip opening is located at the side of squirrel-cage cylinder the other end.
The quantitative feed machine is that loess slurrying material such as (flyash) is evenly delivered on the ribbon conveyer by set amount, so that be mixed with the mud of desired concn.The quantitative feed machine can adopt the screw conveyor shaft transporting clay.
Ribbon conveyer is the feed hopper that loess slurrying material such as (flyash) is transferred to the slurrying machine.
The slurrying machine is that the slurrying material is mixed in the squirrel-cage cylinder with water, carries out continuous stirring, fusion and filtration, discharges water-fast particle greater than 15mm, makes mud, and adds a certain amount of suspending agent in mud.
The filter pulp machine is that slurries and suspending agent are mixed formation thickening colloid slurries, and the filtration that becomes more meticulous, and the particle greater than 8mm in the slurries is filtered out, in order to avoid it precipitates obstruction in grout pipe line.For energy efficient, the simplified apparatus structure, preferred version of the present invention is the stock inlet that the ororrhea head piece of slurrying machine is higher than the filter pulp machine, the slurries of slurrying machine can enter the filter pulp machine in the gravity flow mode like this.According to circumstances, also can establish a slow stock tank in the back of filter pulp machine, the outlet pipe of filter pulp machine flows into slow stock tank by pipe gravity flow pipeline, and the slip casting colloid for preparing is stored temporarily, by the slag stock pump colloid is imported grouting pipe again.
The present invention adopts the mechanization quantitative feed, can be according to the conveying capacity of required slurrying amount or slurrying concentration adjustment slurrying material; And adopt immersion system filter pulp, and strengthened the incorporation time of pulping raw material and water, not only improved the utilization rate of pulping raw material, and made slurries more even, one-tenth glue effect is more satisfactory.The present invention is simple to operate, only needs to use equipment such as forklift or bulldozer that pulping raw material is sent into the quantitative feed machine, and the control room arranges two duty personnel can realize that a complete set of system makes filter pulp continuously, has improved operating efficiency, and has alleviated working strength of workers greatly.Floor space of the present invention is little, invests for a short time, pollutes for a short time, and automaticity is higher.In addition in whole slurry preparation and course of conveying, slurries are at slurrying machine, filter pulp machine and utilize the gravity flow of the equipment discrepancy in elevation to flow into the down-hole in the grouting pipeline process of flowing of down-hole, thus energy conservation greatly.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is a layout plan of the present invention.
Fig. 3 is the structure chart of quantitative feed machine of the present invention.
Fig. 4 is Fig. 3 B-B direction view.
Fig. 5 is the structure chart of slurrying machine of the present invention, and this view is for overlooking direction.
Fig. 6 is Fig. 5 A-A position sectional view.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2: system equipment is installed in raw material and stacks in field 1 and 2 two houses of slip house.Quantitative feed machine 3 places raw material to stack field 1 with the major part of ribbon conveyer 4, and the head of ribbon conveyer 4 and all the other equipment place in the slip house 2.System is quantitative feed machine 3 foremost, and its upper edge is lower than grade, can make things convenient for pushers such as forklift, bulldozer that pulping raw material is sent in the hopper of quantitative feed machine like this.The feed end of ribbon conveyer is below quantitative feed machine discharging opening, and its discharge end is positioned at the stock shelf top of slurrying machine 5.Clarified water pump 8 be installed in slurrying machine 5 near, its suction water pipe 81 connects water head sites, the graft clay stock shelf water inlet of slurry draft machine 5 of outlet pipe 82.Filter pulp machine 6 is installed in the rear portion of slurrying machine 5, and its basis is lower than slurrying machine basis, makes the stock inlet of filter pulp machine be lower than the ororrhea head piece of slurrying machine.The slag-drip opening below of slurrying machine 5 and filter pulp machine 6 is provided with and connects slag bath 9,10.
During system works, the raw clay that forklift or bulldozer are stacked field 1 with raw material is sent in the hopper of quantitative feed machine 3, quantitative feed machine 3 is delivered to pulping raw material on the ribbon conveyer 4 continuously according to the amount of setting of giving, deliver to the top of slurrying machine stock shelf then, fall into drop guide funnel, enter in the squirrel-cage cylinder of slurrying machine 5; Simultaneously, clarified water pump 8 is sent water into the slurrying machine by setting flow, and pulping raw material is integrated with water in stirring, forms mud, flows to discharge pipe 51 from overfall, and this discharge pipe leads to the stock inlet of filter pulp machine.Because the ororrhea head piece of slurrying machine is higher than the stock inlet of filter pulp machine, so mud is to enter in the filter pulp machine by discharge pipe in the gravity flow mode, water-fast particle greater than the 15mm then screen pack by the slurrying machine is discharged to from slag-drip opening and connects slag bath 9.The discharge pipe of slurrying machine is provided with the quantitative adding set 52 of suspending agent, adds a certain amount of suspending agent in mud.The mud that is added with suspending agent enters filter pulp machine 6, forms colloid by stirring, merging, and is discharged by outlet pipe 61, and for down-hole grouting usefulness, water-fast particle greater than the 8mm then screen pack by the filter pulp machine is discharged to from slag-drip opening and connects slag bath 10.
Near grouting station, be provided with under the situation of boring, can be directly the outlet pipe 61 of filter pulp machine be linked to each other with boring and down-hole grouting pipeline.
Near the grouting station, do not have under the situation of boring, also be provided with slow stock tank 7, the grout outlet of filter pulp machine 6 is higher than the pulp inlet of slow stock tank 7, and the grout outlet of filter pulp machine leads to the pulp inlet that delays stock tank by outlet pipe 61, that is: colloid is to flow into slow stock tank in the gravity flow mode to store.When implementing down-hole grouting, the colloid in the slow stock tank is introduced pump pond 71, import the grouting pipeline 73 of ground to down-hole by slag stock pump 72.
The preferred quantitative feed machine of the present invention as shown in Figure 3, Figure 4.Quantitative feed machine 3 has feed hopper 31, hopper 32 and is positioned at four screw conveyor shafts arranged side by side 33,34,35,36 of hopper, the discharging opening 37 of quantitative feed machine is positioned at the hopper bottom, the rotation direction of two screw conveyor shafts 34 in the middle of wherein being positioned at and 35 spiral conveying blade 3a is opposite, and the rotation direction of the spiral conveying blade of the screw conveyor shaft that two screw conveyor shafts 33 in the outside and 36 spiral conveying blade are adjacent is identical.Pulping raw material enters hopper from feed hopper, is advanced to the discharging opening of hopper by screw conveyor shaft, falls on the conveyer belt of ribbon conveyer of discharging opening below.Because the blade rotation direction of screw conveyor shaft 34 and 35 is opposite, they also have the roll extrusion effect when advancing material, and the material that particle is bigger carries out preliminary fragmentation, and this helps the fusion of slurrying material and water.Four screw conveyor shafts pass through reduction box 39 and drive sprocket driven rotary by frequency control motor 38, regulate rotating speed of motor and can regulate the material conveying capacity.
Pile up at discharging opening in order to prevent pulping raw material, be equipped with a slice anti-leaf-pushing plate 3b opposite with the spiral conveying blade 3a rotation direction of this conveying axis at every screw conveyor shaft near an end of discharging opening, the pulping raw material that utilizes its deboost to make to be pulled to discharging opening can in time fall.
Look down from charging aperture, the quantitative feed machine in the middle of being positioned at two screw conveyor shafts 34 and 35 spiral conveying blade be to distribute symmetrically, can make the better effects if of broken earth like this.
Ribbon conveyer can adopt the commercially available belt conveyor that has meausring apparatus, so that more accurately measure the conveying capacity of material.
Slurrying machine of the present invention such as Fig. 5, shown in Figure 6.The Lower Half of slurries case 53 is half-cylindrical storage slurry groove, the first half is a case lid, squirrel-cage cylinder 54 parts immerse in the storage slurry groove of slurries case, the periphery of squirrel-cage cylinder is with screen pack 55 and two vertical plasma discharge plates 56, being provided with six interior week and vertically stirring pulpboard 57 of squirrel-cage cylinder, vertical plasma discharge plate 56 and vertically stir pulpboard 57 all along the circumference symmetrical distribution of squirrel-cage cylinder 54, be provided with ororrhea head piece 58 in the side of slurries case, discharge pipe 51 is connected on the ororrhea head piece, the plasma discharge body is provided with the quantitative adding set 52 of suspending agent, drop guide funnel 50 is located at an end of squirrel-cage cylinder, and slag-drip opening 59 is located at the side of squirrel-cage cylinder the other end.
The ororrhea head piece that is located at slurries case side plays a part the control liquid level, leave time enough to slurries, so that pulping raw material and water are merged better, for this reason, the ororrhea head piece is preferably 30%～40% of slurries case diameter to the height of slurries case bottom, and the dotted line among Fig. 6 is the slurries liquid level.
Squirrel-cage cylinder 54 is horizontal, can be cylindrical drum or circular cone tube, and the present invention adopts the circular cone tube.Loess enters in the cylinder 54 from drop guide funnel and mixes with water, and motor D drives cylinder 54 rotations by transmission mechanism, and this scroll drum had both played to stir and seethed effect, and also the motion to slurries has guide effect.Being provided with six interior week and vertically stirring pulpboard 57 of squirrel-cage cylinder 54, it not only can make the rotation stirring action of squirrel-cage cylinder stronger, and it can also make in the slurries water-fast and can't more successfully longitudinally stir pulpboard by the particle of screen pack and slide into the big end of cylinder, is discharged from slag-drip opening 59 by slag-draining device (such as lever scum board).Merge the screen pack 55 of good slurries by the cylinder periphery and entered slurries case 53.Two vertical plasma discharge plates 56 of cylinder periphery are mainly used in the slurries discharge rate in the control slurries case.The applicant learns by a large amount of tests: more than two, then the discharge of the slurries in the slurries case is too fast as if the plasma discharge plate, can't form the liquid level of certain altitude in the slurries case, and pulping raw material can't have the enough time fully to be integrated with water in the slurries case, and slurries are second-rate.If the plasma discharge plate is only installed one, can lose dynamic equilibrium when then the squirrel-cage cylinder rotates, and plasma discharge speed is slow, causes productivity ratio low.In addition, vertically plasma discharge plate 56 also has stirring action concurrently, and the slurries that make formation are uniformity more.Slurries enter into discharge pipe 51 from overfall 58, and the quantitative adding set 52 on the discharge pipe 51 (can adopt the spiral feeder) adds suspending agent in mud liquid, and gravity flow enters filter pulp machine 6 then.The structure of filter pulp machine 6 is similar substantially to slurrying machine 5, and an end axle in the squirrel-cage cylinder of different is its band screen pack is a hollow, and the centre bore of this end axle promptly is a stock inlet, and the discharge pipe of it and slurrying machine joins.Mud and suspending agent are fused into slip casting colloid slurries in the stirring of filter cylinder is seethed, the screen pack on cylinder enters the colloid hopper, enter slow stock tank or flow directly into grouting pipeline by the outlet pipe gravity flow again.
Claims (7)
1. ground slurry preparing system that is used for preventing and extinguishing fire of coal mine is characterized in that comprising following equipment: quantitative feed machine (3), ribbon conveyer (4), slurrying machine (5) and filter pulp machine (6), wherein
1) discharging opening of quantitative feed machine is positioned at the ribbon conveyer top, and the discharge end of ribbon conveyer is positioned at the top of slurrying machine feed hopper, and the discharge pipe of slurrying machine is communicated with the stock inlet of filter pulp machine;
2) the slurrying facility have a slurries case (53) and part to immerse squirrel-cage cylinder (54) and drive unit thereof in the slurries case, the periphery of squirrel-cage cylinder is with screen pack (55) and two vertical plasma discharge plates (56), the squirrel-cage cylinder be provided with a plurality of pulpboards (57) that vertically stir interior week, said vertical plasma discharge plate and vertically stir pulpboard and all be symmetrically distributed along the circumference of squirrel-cage cylinder, be provided with ororrhea head piece (58) in the side of slurries case, discharge pipe (51) is connected on the ororrhea head piece, the plasma discharge body is provided with the quantitative adding set of suspending agent (52), drop guide funnel (50) is located at an end of squirrel-cage cylinder, and slag-drip opening (59) is located at the side of squirrel-cage cylinder the other end.
2. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 1, the ororrhea head piece that it is characterized in that being located at slurries case side is 30%～40% of a slurries case diameter to the height of slurries case bottom.
3. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 1 and 2, it is characterized in that said quantitative feed machine (3) has feed hopper (31), hopper (32) and is positioned at four screw conveyor shafts arranged side by side (33,34,35,36) of hopper, the discharging opening of quantitative feed machine (37) is positioned at the hopper bottom, the rotation direction of the spiral conveying blade (3a) of two screw conveyor shafts (34,35) in the middle of wherein being positioned at is opposite, and the rotation direction of the spiral conveying blade of the screw conveyor shaft that the spiral conveying blade of two screw conveyor shafts in the outside is adjacent is identical.
4. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 3 is characterized in that every screw conveyor shaft is equipped with a slice anti-leaf-pushing plate (3b) opposite with spiral conveying blade (3a) rotation direction of this conveying axis near an end of discharging opening.
5. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 3 is characterized in that the ororrhea head piece of slurrying machine is higher than the stock inlet of filter pulp machine.
6. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 3 is characterized in that looking down from charging aperture, and the spiral conveying blade of two screw conveyor shafts (34,35) in the middle of the quantitative feed machine is positioned at is to distribute symmetrically.
7. the ground slurry preparing system of preventing and extinguishing fire of coal mine according to claim 3 is characterized in that also being provided with slow stock tank (7), and the grout outlet of filter pulp machine is higher than the pulp inlet of slow stock tank, and the grout outlet of filter pulp machine leads to the pulp inlet of slow stock tank by outlet pipe (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910304321XA CN101592037B (en) | 2009-07-14 | 2009-07-14 | Ground slurry preparing system for preventing and extinguishing fire of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910304321XA CN101592037B (en) | 2009-07-14 | 2009-07-14 | Ground slurry preparing system for preventing and extinguishing fire of coal mine |
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| Publication Number | Publication Date |
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| CN101592037A true CN101592037A (en) | 2009-12-02 |
| CN101592037B CN101592037B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910304321XA Expired - Fee Related CN101592037B (en) | 2009-07-14 | 2009-07-14 | Ground slurry preparing system for preventing and extinguishing fire of coal mine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322284A (en) * | 2011-06-10 | 2012-01-18 | 中国矿业大学 | Fire fighting pulping system for coal mine |
| 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 |
| CN104481571A (en) * | 2014-11-06 | 2015-04-01 | 大同煤矿集团有限责任公司 | Mine coal ash grouting fire preventing and extinguishing method |
| CN108927893A (en) * | 2018-07-20 | 2018-12-04 | 大同煤矿集团有限责任公司 | The grouting station stirring of mine fire extinguishing ground and pulping system |
| 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 |
-
2009
- 2009-07-14 CN CN200910304321XA patent/CN101592037B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322284A (en) * | 2011-06-10 | 2012-01-18 | 中国矿业大学 | Fire fighting pulping system for coal mine |
| 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 |
| CN104481571A (en) * | 2014-11-06 | 2015-04-01 | 大同煤矿集团有限责任公司 | Mine coal ash grouting fire preventing and extinguishing method |
| CN104481571B (en) * | 2014-11-06 | 2016-09-14 | 大同煤矿集团有限责任公司 | Mine flyash grouting fire extinguishing method |
| CN108927893A (en) * | 2018-07-20 | 2018-12-04 | 大同煤矿集团有限责任公司 | The grouting station stirring of mine fire extinguishing ground and pulping system |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101592037B (en) | 2011-07-27 |
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Granted publication date: 20110727 Termination date: 20210714 |