CN106523014A - Ventilation system for underhand-cutting-and-filling-method high-temperature stope and method - Google Patents
Ventilation system for underhand-cutting-and-filling-method high-temperature stope and method Download PDFInfo
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- CN106523014A CN106523014A CN201611064567.0A CN201611064567A CN106523014A CN 106523014 A CN106523014 A CN 106523014A CN 201611064567 A CN201611064567 A CN 201611064567A CN 106523014 A CN106523014 A CN 106523014A
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- return air
- small well
- temperature
- stope
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009423 ventilation Methods 0.000 title claims abstract description 21
- 238000005304 joining Methods 0.000 claims description 27
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 7
- 230000007480 spreading Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003517 fume Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 229920003266 Leaf® Polymers 0.000 description 12
- 230000011218 segmentation Effects 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 5
- 238000005422 blasting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a ventilation system for an underhand-cutting-and-filling-method high-temperature stope and a method. The ventilation system comprises an artificial air returning roadway, an artificial air-returning small mine and a draught fan. The back end of the artificial air returning roadway is connected with the upper side wall of the artificial air-returning small mine to allow the artificial air returning roadway to be communicated with the artificial air-returning small mine, the front end of the artificial air returning roadway is connected with the draught fan, a temperature sensor and a controller are arranged at the connection portion of the artificial air returning roadway and the draught fan, and both the temperature sensor and the draught fan are electrically connected with the controller; the top end is arranged at the end, close to the artificial air returning roadway, of the artificial air-returning small mine, the bottom end is arranged at the end, far away from artificial air returning roadway, of the artificial air-returning small mine, and the top end and the bottom end of the artificial air-returning small mine are closed, and the bottom end is located or capable of being lengthened nearby linking-taxiway triangulation points. According to the ventilation system for the underhand-cutting-and-filling-method high-temperature stope and the method, the temperature difference at the top of the stope and the natural pressure difference in the mine are fully used for ventilation, the ventilation effect is good, energy consumption of a ventilation machine is reduced by 70% or above, the temperature and the noise of the stope are greatly reduced, and the fume discharging time in the stope is shortened by 10 min.
Description
Technical field
The present invention relates to mine ventilation technology, more particularly to a kind of for the logical of Underhand cutting and filling method High-temperature Stope
Wind system and method.
Background technology
Under use in the stope of slicing and filling mining codes, especially ore sulfur-bearing it is high, containing ferrous ion is high, ore body institute
Place's position ground temperature is high, in stope heavy mechanical equipment heat release or discharge that waste gas is more, the stope more than the internal hydrated cementitious heat release of filling,
Due to the comprehensive function of the above various thermal source and waste gas, cause temperature in stope high, high humidity, harmful gas concentration height,
Workman's efficiency is had a strong impact on, safety in production is threatened.
In order to solve this problem, existing technology is used：Using forced blower fan and fire-retardant air duct fabric from segmentation
Air draught it is pressed in stope in haulage drift, and as length of stope increase constantly extends fire-retardant air duct fabric to stope termination.
Prior art is suffered from the drawback that：Using forced power of fan is big, high energy consumption, noise it is big；Forced blower fan from
The wind of fragmented transport lane suction is entered by stope into after stope again and drained in fragmented transport lane again earth's surface, could not make full use of ore deposit
Natural pressure reduction and the temperature difference in well, toxic and harmful will drain into earth's surface through this segmentation transportation roadway causes this segmentation transportation roadway air
Of poor quality, in stope, blasting fume dilution is slow, and ventilation effect is poor.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of ventage for underhand cut and fill stoping High-temperature Stope
System and method.The technical scheme that the present invention takes is as follows：
One aspect of the present invention provides a kind of ventilating system for Underhand cutting and filling method High-temperature Stope, including people
The upper side wall of work tailgate, artificial return air The Small Well and blower fan, the rear end of the artificial tailgate and artificial return air The Small Well connects
Connecing makes artificial tailgate be connected with artificial return air The Small Well to constitute return air channel, the front end of the artificial tailgate and wind
Machine connects, the artificial tailgate and blower fan junction be provided with to detect in return air channel the temperature sensor of temperature and
For controlling the controller of rotation speed of fan, the temperature sensor and blower fan are electrically connected with the controller；The artificial return air is little
Well near one end of artificial tailgate be top, away from artificial tailgate one end be bottom, the artificial return air The Small Well
Top and bottom is closed and bottom is located at or can lengthen to connecting taxiway triangulation point, wherein connecting taxiway triangulation point refers to contact
Where the intersection in road and other tunnels.
Further, the artificial return air The Small Well bottom can be lengthened by artificial return air The Small Well long joining section, described artificial time
Wind The Small Well long joining section sets at least to one section according to lower leaf ore body depth, and the artificial return air The Small Well long joining section is connected in turn
The bottom of artificial return air The Small Well, and bottom artificial return air The Small Well long joining section bottom is closed and tiltable is keeping artificial return air
The bottom of The Small Well long joining section is always positioned near connecting taxiway triangulation point.
Specifically, before spreading, first artificial return air The Small Well bottom is removed, it is then closed by upper end open, lower end
Artificial return air The Small Well long joining section artificial return air The Small Well is lengthened, constitute new artificial return air The Small Well, new artificial return air The Small Well
Lower end is closed, when needing to lengthen again artificial return air The Small Well, repeat the above steps.
Further, the connection side of the bottom of the top of the artificial return air The Small Well long joining section and the artificial return air The Small Well of epimere
Formula is for welding or is threadedly coupled；Specifically, when using thread connecting mode, the lower end outer wall of the artificial return air The Small Well of epimere is arranged
The upper end inwall for having screw thread, artificial return air The Small Well long joining section is provided with screw thread, connects two sections of artificial return air The Small Wells by screw thread
Together, per section of artificial return air The Small Well for continuing later all processes screw thread in upper end inner surface, and lower end outer surface processes spiral shell
Line；The confined layer of the artificial return air The Small Well bottom will be the bottom of artificial return air The Small Well close by welding or thread connecting mode
Close；Specifically, when using thread connecting mode, the confined layer of the artificial return air The Small Well bottom has screw thread for inner surface setting
Closure, the lower end outer wall of the artificial return air The Small Well is provided with screw thread, and upper end inwall is provided with screw thread, and the closure leads to
The lower end for being threaded in artificial return air The Small Well is crossed, when the artificial return air The Small Well of the hypomere that continues, closure is taken away, by lower end
The screw thread of outer wall is connected with the artificial return air The Small Well of hypomere.
Using thread connecting mode, artificial return air The Small Well continues no longer by welding manner, and the sealant of bottom is not yet
Need to slice off, need to only pass through the identical fastening of screw thread between artificial return air The Small Well, and the new return air The Small Well sealed bottom installed is covered
Lower leaf is rotatable after disclosing to remove, and is reused.
Further, the artificial tailgate is vertical with artificial return air The Small Well is connected, and connected mode is welding or screw thread
Connection.In order that it is distinguished and admirable more smooth in return air channel, and the artificial return air The Small Well of artificial tailgate connection can one
Shaping.
Further, outside the artificial return air The Small Well solderable a number of outwardly convex iron block or reinforcing bar, make
The frictional force obtained between return air The Small Well and obturation is bigger, the risk for effectively preventing return air The Small Well from moving down.
Further, transition linkage section is provided between the front end of the artificial tailgate and blower fan, the transition connects
Connect section to be made up of diameter metal pipe or air duct fabric, the temperature sensor and controller may be contained within the inwall of transition linkage section
On.
Further, the blower fan is pull-out type frequency conversion fan, and the rated power of the blower fan is 1-5kw.It is appreciated that
, earth's surface out is extracted the waste gas in stope by exhaust fan, natural wind enters stope from fragmented transport lane and connecting taxiway,
Waste gas in stope is discharged from the return air channel that artificial return air The Small Well and artificial tailgate are constituted, and the present invention takes full advantage of and adopts
The natural pressure reduction in the temperature difference and mine at the top of is aerated, and ventilation effect is good, and in stope, blasting fume drain time is reduced about
10min, then it is aided with exhaust fan, make fan energy consumption decline more than 70%, stope temperature, noise are substantially reduced, and lower point
The dirty wind of section drains into the first segmentation, does not pollute this segmentation transportation roadway.
Further, the artificial return air The Small Well and artificial tailgate are the seamless barrel-like structure by made by metal skin,
Also can be made by waste and old oil drum, a diameter of 600-700mm of the bucket, thickness is 1-3mm, preferred 2mm.
Further, the metal is iron or aluminium.
Further, the artificial return air The Small Well also can be by the plastic production of some strength with artificial tailgate so that
Artificial return air channel is lighter, firmly installs.
Another aspect of the present invention utilizes the above-mentioned ventilation for Underhand cutting and filling method High-temperature Stope there is provided a kind of
The method of ventilation of system, comprises the steps：
S1：The rear end of artificial tailgate is connected with the upper side wall of artificial return air The Small Well make artificial tailgate with it is artificial
Return air The Small Well is connected, and after stope filling, the front end of artificial tailgate is connected by transition linkage section with blower fan；Specifically
, artificial tailgate and artificial return air The Small Well are connected, the artificial tailgate is substantially parallel with stope ground, stope and
Filling counterfort is provided between blower fan, to stop charges in stope, the artificial tailgate stretches out filling counterfort 200-
1000mm, preferred 500mm；After stope filling, artificial tailgate is connected with blower fan；
S2：Instantly during little to the artificial return air downhole end of slicing, by the confined layer of artificial return air The Small Well bottom remove with
Return air channel is formed, with the back production of Desending slicing ore body, the continuous spreading of the artificial return air The Small Well, bottom is closed and bottom is begun
Final position is near connecting taxiway triangulation point.It is understood that when near the lower leaf back production to connecting taxiway triangulation point, disclosing top
Artificial return air The Small Well bottom, prescind return air The Small Well bottom and form return air channel；With the carrying out of underbreaking, constantly will
Artificial return air The Small Well and another section of artificial return air The Small Well continued access, to extend return air channel；
In above-mentioned steps, when temperature sensor measured temperature is less than first threshold T1When, the blower fan does not start；Work as temperature
Sensor measured temperature is higher than first threshold T1When, the controller controls blower fan with corresponding according to temperature sensor measured temperature
The corresponding rotation speed operation of gear.
Further, step S2 is specifically, when slicing is to artificial return air The Small Well bottom instantly, by artificial return air The Small Well
The confined layer of bottom removes to form return air channel, with the back production of Desending slicing ore body, connects in the bottom of artificial return air The Small Well
One section of closed artificial return air The Small Well long joining section in top end opening, bottom is connect, new artificial return air The Small Well is constituted, and artificial return air is little
The bottom of well is always positioned near connecting taxiway triangulation point；Instantly, during the bottom of slicing to new artificial return air The Small Well, repeat
Above-mentioned steps.It is understood that instantly near the connecting taxiway triangulation point of slicing to artificial return air The Small Well long joining section bottom
When, repeat step S2 prescinds the confined layer of artificial return air The Small Well long joining section bottom, when underbreaking is continued, then is returned with artificial
Epimere spreading, artificial return air The Small Well long joining section are set at least to one section according to ore body lower leaf quantity by wind The Small Well long joining section, no
Disconnected repetition prescinds-process of spreading, so that return air channel extends as back production depth increases.
Further, when temperature sensor measured temperature is less than first threshold T1When, the blower fan does not start；When temperature is passed
Sensor measured temperature is in first threshold T1With Second Threshold T2Between when, the blower fan is with the first gear D1Corresponding rotational speed,
Wherein T2>T1, T2-T1=Δ T；When temperature sensor measured temperature is in Second Threshold T2With the 3rd threshold value T3Between when, the wind
Machine is with the second gear D2Corresponding rotational speed, wherein T3>T2, T3-T2=Δ T, and D2Corresponding rotating speed is more than D1It is corresponding
Rotating speed；By that analogy, i.e., described blower fan starts the relation of temperature sensor measured temperature gear corresponding with rotation speed of fan afterwards
The temperature of startup is T1, and temperature often raises Δ T, and the rotating speed of blower fan is correspondingly improved a gear.Wherein T1It is set as 25-30
DEG C, preferably 25 DEG C；Δ T is 5-10 DEG C, preferably 5 DEG C.
The present invention has the beneficial effect that：The present invention is by adopting layer arrangement to the stope head of slicing and filling mining codes under use
Artificial tailgate and artificial return air The Small Well are realized in lower leaf back production with constituting return air channel and being connected with exhaust fan
Top exhaust ventilation, and with the artificial return air The Small Well of the continuous spreading of the downward back production of ore bed, when back production is to the little shaft bottom of artificial return air
During portion, bottom is removed and return air channel is formed with artificial tailgate, realize that once the use that repeatedly continues is installed at top；The ventilation
Method opens short distance return air channel, realizes the exhaust ventilation to High-temperature Stope, makes the dirty wind in lower segmentation stope drain into the
One segmentation stope, does not pollute this section of transportation roadway；And take full advantage of the natural pressure reduction in the temperature difference and mine at the top of stope and carry out
Ventilation, ventilation effect are good, and ventilation blower energy consumption declines more than 70%, and stope temperature, noise are substantially reduced, when in stope, blasting fume is discharged
Between reduce 10min.It is also possible to according to the temperature automatic control rotation speed of fan of waste gas in return air channel, work as return air
When intra passage temperature is high, can be quickly returning to below given threshold, when the temperature is low, rotation speed of fan is low or does not start, Ke Yijie
Save fan energy consumption.The return air channel simple structure of the present invention, (can be made using waste and old oil drum) easy to make, exhaust fan valency
Lattice are cheap, and operation is initially installed and subsequently continued to artificial return air channel simply, and overall utility is good.
Description of the drawings
Fig. 1 is being adopted for a kind of ventilating system for Underhand cutting and filling method High-temperature Stope of one embodiment of the invention
Structural representation in during initial installation；
Fig. 2 is structural representation when artificial return air The Small Well is continued downwards in the ventilating system of another embodiment of the present invention.
Description of reference numerals：1 exhaust fan；2 transition linkage sections；3 artificial tailgates；4 artificial return air
The Small Well；5 obturation barricades；6 stopes；7 connecting taxiways；8 fragmented transport lanes；9 head adopt layer；10 lower leafs；11—
Artificial return air The Small Well long joining section；12 temperature sensors；13 controllers.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
Fig. 1 shows a kind of ventilating system for Underhand cutting and filling method High-temperature Stope of one embodiment of the invention
Initial structural representation when installing in the stope, including artificial tailgate 3, artificial return air The Small Well 4 and exhaust fan 1,
The front end of the artificial tailgate 3 and exhaust fan 1 are connected by transition linkage section 2, and the transition linkage section 2 is by reducing
Metal drum make, by welding be connected with artificial tailgate 3 and exhaust fan 1, or using air duct fabric pass through iron wire and
Artificial tailgate 3 and 1 colligation of exhaust fan connect together, and 2 inwall of transition linkage section is provided with to detect return air
The temperature sensor 12 of intra passage temperature and the controller 13 for controlling 1 rotating speed of blower fan, the temperature sensor 12 and blower fan 1
Electrically connect with controller 13；Stretch out 5 position of obturation barricade about 500mm, the artificial return air in the front end of artificial tailgate 3
The rear end of gallery 3 makes artificial tailgate 3 little with artificial return air together with the upper side wall vertical welding of artificial return air The Small Well 4
Well 4 connects to constitute direct route return air channel completely；The artificial return air The Small Well 4 is top near one end of artificial tailgate 3,
It is bottom away from one end of artificial tailgate 3, the top and bottom of the artificial return air The Small Well 4 are closed and bottom is located at contact
Near 7 triangulation point of road；The bottom of the artificial return air The Small Well 4 is by seal cap sealing, the closure and artificial return air The Small Well 4
Bottom welding or threaded connection；The artificial tailgate 3 and artificial return air The Small Well 4 are the cylinders made by waste metal oil drum
Shape structure, diameter 600-700mm, thickness are 2mm；The blower fan 1 selects power for the exhaust fan of 3kw.
In another embodiment, as shown in Fig. 2 disclosing when lower leaf 10 is exploited to artificial 4 bottom position of return air The Small Well
Go out closure, closure is sliced off or rotated and is removed, form direct route return air channel；With the carrying out of underbreaking, artificial return air
The Small Well 4 needs continuous spreading, and the height of artificial return air The Small Well long joining section 11 is identical with lower leaf 10, artificial return air The Small Well long joining section
11 upper end is welded or is threadedly coupled with artificial 4 bottom of return air The Small Well, and lower end carries closure, and lower end is always positioned at connecting taxiway
Near 7 triangulation points, after 10 back production of lower leaf is disclosed slice off or rotate and remove closure.
Ventilating system of the present invention is aerated in accordance with the following steps：
1st, ventilating system is installed：Artificial tailgate 3 is connected as a single entity in advance and is communicated with artificial return air The Small Well 4, head is adopted
After 9 back production of layer are finished, the bottom of artificial return air The Small Well 4 is placed near 7 triangulation point of connecting taxiway, by making anchor at the top of stope
Bar arranges column by artificial tailgate 3 and artificial 4 fixation of return air The Small Well in stope, and artificial tailgate 3 stretches out
5 position of obturation barricade about 500mm；
After artificial tailgate 3 is fixed with artificial return air The Small Well 4, complete to arrange Bottom of Stope bar-mat reinforcement and filling
Manage, play the work such as obturation barricade 5, finally carry out stope filling；
Artificial tailgate 3 is connected with exhaust fan 4 using diameter metal bucket, and pull-out type wind is fixed using bracket
Machine 4, finally carries out wiring and switch is installed.
2nd, disclose the confined layer of artificial return air The Small Well bottom：When near 10 back production of lower leaf to 7 triangulation point of connecting taxiway, take off
Expose the confined layer of artificial 4 bottom of return air The Small Well, bottom closed cover is sliced off or removes closed cover rotation using gas cutting to be formed
Direct route return air channel, the controller 13 control exhaust fan 1 with corresponding gear according to 12 measured temperature of temperature sensor
Corresponding rotation speed operation, the dirty wind of the heat in stope 6 is extracted out from return air channel and is gone, and natural wind is from fragmented transport lane 8, connecting taxiway
7 enter in stope 6.
3rd, artificial return air The Small Well continues：With the carrying out of underbreaking, artificial return air The Small Well 4 needs to extend downwardly, and uses
The consistent metal drum of diameter is closely welded with artificial 4 lower end of return air The Small Well as artificial return air The Small Well long joining section 11 or screw threads for fastening
Connection, wherein artificial 11 lower ends of return air The Small Well long joining section are closed, upper end is communicated with artificial return air The Small Well 4, and artificial return air The Small Well connects
The height of long section 11 is highly consistent with lower leaf 10, when 10 back production of lower leaf is to artificial return air The Small Well 11 lower end of long joining section, cuts
Fall or rotate to remove bottom closed cover and form direct route return air channel again, so circulate, artificial return air The Small Well long joining section 11 is set to
At least one section.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (11)
1. a kind of ventilating system for Underhand cutting and filling method High-temperature Stope, it is characterised in that flat including artificial return air
The upper side wall connection of lane, artificial return air The Small Well and blower fan, the rear end of the artificial tailgate and artificial return air The Small Well makes artificial
Tailgate is connected with artificial return air The Small Well to constitute return air channel, the front end of the artificial tailgate and blower fan connection,
The artificial tailgate and blower fan junction are provided with to detect in return air channel the temperature sensor of temperature and for controlling
The controller of rotation speed of fan processed, the temperature sensor and blower fan are electrically connected with the controller；The artificial return air The Small Well is close
One end of artificial tailgate is top, is bottom away from one end of artificial tailgate, the top of the artificial return air The Small Well
And bottom closed with bottom is located at or can lengthen to connecting taxiway triangulation point.
2. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 1, it is characterised in that
The artificial return air The Small Well bottom can be lengthened by artificial return air The Small Well long joining section, and the artificial return air The Small Well long joining section is according under
Layering ore body depth sets at least to one section, and the artificial return air The Small Well long joining section is connected to the bottom of artificial return air The Small Well in turn
End, and bottom described artificial return air The Small Well long joining section bottom is closed and tiltable is keeping artificial return air The Small Well long joining section
Bottom is always positioned near connecting taxiway triangulation point.
3. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 2, it is characterised in that
The top of the artificial return air The Small Well long joining section is that welding or screw thread connect with the connected mode of the bottom of the artificial return air The Small Well of epimere
Connect, the confined layer of the artificial return air The Small Well bottom will be the bottom of artificial return air The Small Well close by welding or thread connecting mode
Close.
4. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 1, it is characterised in that
The artificial tailgate is vertical with artificial return air The Small Well to be connected, and connected mode is for welding or is threadedly coupled.
5. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 1, it is characterised in that
Be provided with transition linkage section between the front end of the artificial tailgate and blower fan, the transition linkage section by diameter metal pipe or
Air duct fabric is made, and the temperature sensor and controller are may be contained within the inwall of transition linkage section.
6. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 1, it is characterised in that
The blower fan is pull-out type frequency conversion fan, and the rated power of the blower fan is 1-5kw.
7. the ventilating system for Underhand cutting and filling method High-temperature Stope according to any one of claim 1-6, its
It is characterised by, the artificial return air The Small Well is the seamless barrel-like structure by made by metal skin with artificial tailgate, the bucket
A diameter of 600-700mm, thickness are 1-3mm.
8. the ventilating system for Underhand cutting and filling method High-temperature Stope according to claim 7, it is characterised in that
The metal is iron or aluminium.
9. a kind of ventilating system for Underhand cutting and filling method High-temperature Stope utilized described in any one of claim 1-8
Method of ventilation, it is characterised in that comprise the steps：
S1：The rear end of artificial tailgate is connected with the upper side wall of artificial return air The Small Well makes artificial tailgate with artificial return air
The Small Well is connected, and after stope filling, the front end of artificial tailgate is connected with blower fan；
S2：Instantly, when slicing is to artificial return air The Small Well bottom, the confined layer of artificial return air The Small Well bottom is removed to be formed
Return air channel, with the back production of Desending slicing ore body, the continuous spreading of the artificial return air The Small Well, bottom is closed and is always positioned at connection
Near network road triangulation point；
In above-mentioned steps, when temperature sensor measured temperature is less than first threshold T1When, the blower fan does not start；Work as TEMP
Device measured temperature is higher than first threshold T1When, the controller controls blower fan with corresponding shelves according to temperature sensor measured temperature
The corresponding rotation speed operation in position.
10. method of ventilation according to claim 9, it is characterised in that step S2 is specially：Instantly slicing is to artificial
During return air The Small Well bottom, the confined layer of artificial return air The Small Well bottom is removed to form return air channel, with Desending slicing ore body
Back production, connect the closed artificial return air The Small Well long joining section in a section of top end opening, bottom, composition in the bottom of artificial return air The Small Well
New artificial return air The Small Well, and manually the bottom of return air The Small Well is always positioned near connecting taxiway triangulation point；Instantly slicing is extremely
During the bottom of new artificial return air The Small Well, repeat the above steps.
11. method of ventilations according to claim 9, it is characterised in that when temperature sensor measured temperature is in first threshold T1
With Second Threshold T2Between when, the blower fan is with the first gear D1Corresponding rotational speed, wherein T2>T1, T2-T1=Δ T；Work as temperature
Degree sensor measured temperature is in Second Threshold T2With the 3rd threshold value T3Between when, the blower fan is with the second gear D2Corresponding rotating speed
Rotate, wherein T3>T2, T3-T2=Δ T, and D2Corresponding rotating speed is more than D1Corresponding rotating speed；Temperature sensor institute thermometric afterwards
By that analogy, i.e., the temperature that described blower fan starts to start is T to the relation of degree gear corresponding with rotation speed of fan1, temperature often raises
Δ T, the rotating speed of blower fan are correspondingly improved a gear；Wherein T1For 25-30 DEG C, Δ T is 5-10 DEG C.
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| CN113107588A (en) * | 2021-05-28 | 2021-07-13 | 金川镍钴研究设计院有限责任公司 | Construction method of layered connecting road by downward layered cemented filling mining method |
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