CN106351683A - Automatic draw-shaft dust reducing device based on underground extracted ore grade and control method thereof - Google Patents
Automatic draw-shaft dust reducing device based on underground extracted ore grade and control method thereof Download PDFInfo
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- CN106351683A CN106351683A CN201610644518.8A CN201610644518A CN106351683A CN 106351683 A CN106351683 A CN 106351683A CN 201610644518 A CN201610644518 A CN 201610644518A CN 106351683 A CN106351683 A CN 106351683A
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- China
- Prior art keywords
- grade
- ore
- drop shaft
- atomizing nozzle
- water
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
Abstract
The invention provides an automatic draw-shaft dust reducing device based on the underground extracted ore grade and a control method thereof. The automatic draw-shaft dust reducing device comprises a main controller, a grade detection device, a water atomization nozzle device and a distance detection device. The water atomization nozzle device is installed above a draw-shaft opening and connected with a water supply pipe, and an electric control device is installed on the water supply pipe; the grade detection device is installed at the front portion of the draw-shaft opening, and distance detection devices are installed at the front portion and the back portion of the draw-shaft opening; the output end of the grade detection device and the output ends of the distance detection devices are connected with the input end of the main controller respectively, and the output end of the main controller is connected with the input end of an electromagnetic control device. By means of the automatic draw-shaft dust reducing device based on the underground extracted ore grade and the control method thereof, dust is effectively inhibited in the certain range of a draw shaft; the ratio of ore and rock is detected and serves as the reference degree quantity for controlling the opening degree of an electric valve, the using ratio of water resources is increased, dust is efficiently and rapidly reduced, the underground working environment is improved, and damage of dust to human body is effectively prevented.
Description
Technical field
The invention belongs to underground mine atomizing de-dusting control technology field, it is based on down-hole extracted ore product particularly to a kind of
The drop shaft automatic dustfall device of position and its control method.
Background technology
Mine dust is one of topmost pollutant of mining industry all the time, not only directly endangers mine one line
Workman's is healthy, and dust also drastically influence the operating of the numerous main equipment of mine, affects shaft production safety.By
Produce a large amount of dust in pit mining and development end, therefore at this stage the research of mine dedusting dust suppression is had focused largely on exploitation and
Development end.And for the important step mine car of Mine Production, to unload the dust producing during ore deposit often ignored.
By locomotive traction mine car, drive towards this horizontal plane drop shaft, when drop shaft mouth, extracted ore is unloaded to drop shaft by mine car
In, extracted ore is unloaded to by crushing chamber by drop shaft.Ore and rock is contained, Ore is hard, when ratio is big in extracted ore
It is not likely to produce dust, and rock is soft, easily produces dust when ratio is big.When unloading extracted ore every time, all can there is different proportion
Rock unloaded, thus can produce a large amount of dust, dust can spread rapidly with air-flow, harm shop floor worker body be good for
Health.
Suppress these dust to need to form water smoke in Pass drawing mouth in advance, can be only achieved good dust-laying effect.And show
Some device for reducing dust to detect dust concentration using sensor of dust concentration mostly, controls device for reducing dust according to the threshold values setting.
But sensor of dust concentration range ability is limited, easily it is subject to dust pollution, zero migration is serious, needs often clear
Reason, accuracy of detection is low, and error is up to 20%.Simultaneously because drop shaft implication stream is stronger, dust recycling is fast, works as sensor of dust concentration
When dust concentration is detected higher than setting threshold values, then during control device spraying, most of dust has spread, and therefore adopts dust
As the testing agency controlling device for reducing dust, there is certain hysteresis quality it is impossible to carry out depositing dust operation in time in concentration sensor, fall
Dirt effect is poor, and resource utilization is low.
Content of the invention
In view of the shortcomings of the prior art, present invention offer is a kind of is dropped automatically based on the drop shaft of down-hole extracted ore grade
Dirt device and its control method.
The technical scheme is that and be achieved in that:
A kind of drop shaft automatic dustfall device based on down-hole extracted ore grade, comprising: master controller, grade detection dress
Put, water atomizing nozzle device and distance detection device；
Water atomizing nozzle device is arranged on above drop shaft mouth and forms spraying；
Water atomizing nozzle device connects supply channel and air-supply pipeline, and this supply channel is provided with electric controller；
Grade detection means is arranged in front of drop shaft mouth, and distance detection device is separately mounted to drop shaft mouth front and back；
The outfan of grade detection means, the outfan of distance detection device connect the input of master controller respectively, main
The outfan of controller connects the input of electromagnetic control apparatus.
Described water atomizing nozzle device includes the first water atomizing nozzle group, the second water atomizing nozzle group, to slipping to being arranged on
Above well head both sides, the supply channel that the first water atomizing nozzle group, the second water atomizing nozzle group connect is mounted on electronic control
Device processed.
Described electric controller includes the first electric control valve and the second electric control valve, and the first electric control valve is installed
On the supply channel that the first water atomizing nozzle group connects, the second electric control valve is arranged on what the second water atomizing nozzle group connected
On supply channel.
Described distance detection device includes the first proximity switch and the second proximity switch, be separately mounted in front of drop shaft mouth and
Rear, and the first proximity switch is positioned between grade detection means and drop shaft mouth.
The control method of the described drop shaft automatic dustfall device based on down-hole extracted ore grade, comprises the following steps:
Step 1, locomotive traction the mine car carrying ore deposit when grade detection means, and grade detection means detects this mine car institute
Carry the grade of ore, obtain the ratio of Ore and rock；
The percent information of step 2, Ore and rock transmits to master controller, and master controller is according to the ratio of Ore and rock
Calculate spray amount, and determine the aperture of the water supply electric controller corresponding with the spray amount size being calculated；
Step 3, when distance detection device detects locomotive approaching drop shaft mouth, start atomizing de-dusting operation；
Step 4, when distance detection device detects locomotive and sails out of drop shaft mouth, after the time of delay adjustmentses, terminate spraying
Depositing dust operation.
Atomizing de-dusting operation described in step 3 is opened to and the spray being calculated by main controller controls electric controller
The aperture of the corresponding electric controller of mist amount size, water droplet is atomised to 10 micron levels and is dropped by water atomizing nozzle device
Dirt operation.
Beneficial effect:
Compared with prior art, the drop shaft automatic dustfall device based on down-hole extracted ore grade of the present invention and its control
Dust is suppressed in the certain limit of drop shaft and depositing dust by method effectively.By detect Ore and rock ratio and by its
Measure as reference controlling motorized adjustment valve opening size, it is to avoid existing concentration sensor error larger problem.Improve
Water utilization rate, carries out efficiently quick depositing dust, improves iron mine underground work environment, effectively prevent the infringement to human body for the dust.
Whole device is automatically controlled by master controller, improves safety and the automatization level that mine down-hole ore deposit produces.
Brief description
Fig. 1 is the structure of the Underground iron mine drop shaft automatic dustfall device based on the grade of ore of the specific embodiment of the invention
Schematic diagram, wherein, 1- master controller, 2- grade detection means, 3- first proximity switch, 4- the first spray nozzle group, 5- second
Spray nozzle group, 6- first electric control valve, 7- second electric control valve, 8- second proximity switch, 9- water supply line, 10- supplies
Wind pipeline, 11- drop shaft mouth；
Fig. 2 is the control of the drop shaft automatic dustfall device based on down-hole extracted ore grade of the specific embodiment of the invention
Method flow diagram.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
A kind of drop shaft automatic dustfall device based on down-hole extracted ore grade, as shown in Figure 1, comprising: master controller 1,
Grade detection means 2, water atomizing nozzle device and distance detection device；C8051f120 chip selected by master controller 1, and grade is examined
Survey device 2 and select df-5735 grade detector.
Water atomizing nozzle device is arranged on drop shaft mouth 11 top and forms spraying；Water atomizing nozzle device includes the first water atomization
Nozzle sets 4, the second water atomizing nozzle group 5, to being arranged on above drop shaft mouth 11 both sides, the first water atomizing nozzle group 4, the second water
It is mounted on electromagnetic control apparatus on the water supply supply air line that atomizer group 5 connects.First water atomizing nozzle group 4, the second water
Atomizer group 5 is formed by two water atomizing nozzles, forms spraying above drop shaft mouth 11, and water atomizing nozzle selects ma/adg
Type atomizer.
Water atomizing nozzle device connects supply channel 9 and supply air line 10, and this supply channel 9 is provided with Electromagnetic Control dress
Put；Electromagnetic control apparatus include the first electric control valve 6 and the second electric control valve 7, and the first electric control valve 6 is arranged on first
On the supply channel 8 that water atomizing nozzle group 4 connects, the second electric control valve 7 is arranged on the confession of the second water atomizing nozzle group 5 connection
In water lines 8.Adjustable spraying amount size is mainly the size of water yield adjusting, therefore only installs electric control valve on feed pipe
For water yield adjusting.And be to ensure atomizing effect, maximum is kept to the blast entering, therefore need not install on air-supply pipeline
Regulating valve.First electric control valve 6 and the second electric control valve 7 are all from 400x electric control valve.
Grade detection means 2 is arranged on that above 30 meters of motorcycle tracks in front of drop shaft mouth, (distance can be suitable according to practical situation
Adjust) it is also possible to installation site is accordingly adjusted according to practical situation.
Distance detection device includes the first proximity switch 3 and the second proximity switch 8, be separately mounted to drop shaft mouth 11 front and
Rear, and the first proximity switch 3 is positioned between grade detection means 2 and drop shaft mouth 11, effective in order to be formed before mine car unloads ore deposit
Water smoke wall it is ensured that dust-laying effect, fill the first proximity switch 3 it is also possible to according to practical situation in drop shaft mouth 11 front ten meter amperes
Corresponding adjustment installation site, when proximity switch 3 is after locomotive is detected and drive into drop shaft mouth, master controller sends control instruction, adjusts
Save the first electric control valve and the second electric control valve to corresponding aperture, the first water atomizing nozzle group 4, the second water atomizing nozzle
Group 5 starts to spray.The installation site of the second proximity switch 8 relevant with locomotive body length it should be ensured that locomotive when being detected
Pass through drop shaft mouth 11 to complete to unload ore deposit operation；After the second proximity switch 9 detects locomotive and sails out of drop shaft mouth 10, master controller
Electric control valve 6 and 7 is closed in 1 time delay 10 seconds (time suitably can be adjusted according to practical situation) it is ensured that dust-laying effect, terminates depositing dust
Operation.
First proximity switch 3 and the second proximity switch 8 are all from gud8 proximity switch.
Grade detection means 2 is used for detecting the grade of ore that locomotive traction in the mine car carrying ore deposit, grade detection means 2
Outfan, the outfan of distance detection device connect the input of master controller 1 respectively, and the outfan of master controller 1 connects electricity
The input of magnetic controller.
The control method of the drop shaft automatic dustfall device based on down-hole extracted ore grade, as shown in Fig. 2 include following walking
Rapid:
Step 1, locomotive traction the mine car carrying ore deposit when grade detection means, and grade detection means detects this mine car institute
Carry the grade of ore, obtain the ratio of Ore and rock；
The percent information of step 2, Ore and rock transmits to master controller, and master controller is according to the ratio of Ore and rock
Spray amount is calculated by formula (1.1), and the supply channel corresponding with the spray amount size being calculated is determined according to formula (1.2)
The aperture of electric controller；
Wherein, master controller according to the computing formula (1.1) that the ratio calculating spray amount of Ore and rock is adopted is:
Z=-ax2+b (1.1)
Wherein a and b is coefficient, and the physical meaning of b ＞ a ＞ 0, b is maximum spraying when being 0 when the ore ratio being detected
Amount, according to concrete practical situation value, x is the ratio of Ore and rock to a and b, and z is spray amount；
The computing formula (1.2) of the aperture of the supply channel electric controller corresponding with the spray amount size being calculated
For:
Z=ky (1.2)
Wherein z is spray amount, and y is control valve opening, and k is regulating constant, and the value of k is according to concrete practical situation value；
Step 3, when distance detection device detects locomotive approaching drop shaft mouth, start atomizing de-dusting operation；Described spray
Mist depositing dust operation is opened to corresponding with the spray amount size being calculated electronic by main controller controls electric controller
The aperture of control device, water droplet is atomised to 10 micron levels and carries out depositing dust operation by water atomizing nozzle device；
Step 4, when distance detection device detects locomotive and sails out of drop shaft mouth, (time can be according to actual feelings within 10 seconds for time delay
Condition is suitably adjusted) after, terminate atomizing de-dusting operation.
Claims (8)
1. a kind of drop shaft automatic dustfall device based on down-hole extracted ore grade is it is characterised in that include: master controller, product
Level detecting apparatus, water atomizing nozzle device and distance detection device；
Water atomizing nozzle device is arranged on above drop shaft mouth and forms spraying；
Water atomizing nozzle device connects water supply supply air line, and this supply channel is provided with electric controller；
Grade detection means is arranged in front of drop shaft mouth, and distance detection device is separately mounted to drop shaft mouth front and back locomotive frame
On line；
The outfan of grade detection means, the outfan of distance detection device connect the input of master controller, main control respectively
The outfan of device connects the input of electromagnetic control apparatus.
2. the drop shaft automatic dustfall device based on down-hole extracted ore grade according to claim 1 is it is characterised in that institute
State water atomizing nozzle device and include the first water atomizing nozzle group, the second water atomizing nozzle group, to being arranged on drop shaft mouth both sides
Side, the supply channel that the first water atomizing nozzle group, the second water atomizing nozzle group connect is mounted on electric controller.
3. the drop shaft automatic dustfall device based on down-hole extracted ore grade according to claim 2 is it is characterised in that institute
State electromagnetic control apparatus and include the first electromagnetic valve and the second electromagnetic valve, the first electromagnetic valve is arranged on the first water atomizing nozzle group and connects
Supply channel on, the second electromagnetic valve be arranged on second water atomizing nozzle group connect supply channel on.
4. the drop shaft automatic dustfall device based on down-hole extracted ore grade according to claim 1 is it is characterised in that institute
State distance detection device and include the first proximity switch and the second proximity switch, be separately mounted to drop shaft mouth front and back, and the
One proximity switch is located between grade detection means and drop shaft mouth.
5. the control method of the drop shaft automatic dustfall device based on down-hole extracted ore grade as claimed in claim 1, it is special
Levy and be, comprise the following steps:
Step 1, locomotive traction the mine car carrying ore deposit when grade detection means, and grade detection means detects the contained ore deposit of this mine car
Stone grade, obtains the ratio of Ore and rock；
The percent information of step 2, Ore and rock transmits to master controller, and master controller calculates according to the ratio of Ore and rock
Spray amount, and determine the aperture of the supply channel electric controller corresponding with the spray amount size being calculated；
Step 3, when distance detection device detects locomotive approaching drop shaft mouth, start atomizing de-dusting operation；
Step 4, when distance detection device detects locomotive and sails out of drop shaft mouth, after the time that time delay reaches setting, terminate spraying
Depositing dust operation.
6. control method according to claim 5 is it is characterised in that master control is passed through in the atomizing de-dusting operation described in step 3
Device processed controls water supply electric controller, the electronic control of supply channel opening it corresponding with the spray amount size being calculated
The aperture of device processed is carried out, and water droplet is atomised to 10 micron levels and carries out depositing dust operation by water atomizing nozzle device.
7. control method according to claim 5 is it is characterised in that in described step 2, master controller is according to Ore and rock
The computing formula that the ratio calculating spray amount of stone is adopted is:
Z=-ax2+b (1.1)
Wherein a and b is coefficient, and the physical meaning of b ＞ a ＞ 0, b is maximum spray amount when being 0 when the ore ratio being detected, a
With b according to concrete practical situation value, x is the ratio of Ore and rock, and z is spray amount.
8. control method according to claim 5 is it is characterised in that in described step 2, with the spray amount size being calculated
The computing formula of the corresponding aperture of supply channel electric controller is:
Z=ky (1.2)
Wherein z is spray amount, and y is control valve opening, and k is regulating constant, and the value of k is according to concrete practical situation value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644518.8A CN106351683B (en) | 2016-08-09 | 2016-08-09 | Drop shaft automatic dustfall device and its control method based on underground extracted ore grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644518.8A CN106351683B (en) | 2016-08-09 | 2016-08-09 | Drop shaft automatic dustfall device and its control method based on underground extracted ore grade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106351683A true CN106351683A (en) | 2017-01-25 |
| CN106351683B CN106351683B (en) | 2019-03-29 |
Family
ID=57843674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610644518.8A Active CN106351683B (en) | 2016-08-09 | 2016-08-09 | Drop shaft automatic dustfall device and its control method based on underground extracted ore grade |
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| CN (1) | CN106351683B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443349A (en) * | 2019-08-27 | 2021-03-05 | 南京宝地梅山产城发展有限公司 | Intelligent dust removal system for underground mine drop shaft |
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| AU4513897A (en) * | 1996-11-12 | 1998-05-21 | Jamison Family Trust | Method and apparatus for stopping the spread of a fire in an underground mine |
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| CN104343463A (en) * | 2014-11-28 | 2015-02-11 | 太原理工大学 | Spray dust settling method for automatic flow adjustment in underground coal mine |
| CN104483234A (en) * | 2014-12-19 | 2015-04-01 | 中冶集团武汉勘察研究院有限公司 | Automatic iron ore grade detection system and method |
| CN104481573A (en) * | 2014-12-16 | 2015-04-01 | 中矿金业股份有限公司 | Inverted segment type draw shaft dustproof device |
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2016
- 2016-08-09 CN CN201610644518.8A patent/CN106351683B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4513897A (en) * | 1996-11-12 | 1998-05-21 | Jamison Family Trust | Method and apparatus for stopping the spread of a fire in an underground mine |
| CN201116911Y (en) * | 2007-07-06 | 2008-09-17 | 张文哲 | Fast measuring device for iron ore grade in mobile mine car |
| CN201338868Y (en) * | 2008-12-06 | 2009-11-04 | 阳城县先锋矿山机械有限公司 | Automatic spray dust removal device |
| CN203430555U (en) * | 2013-07-12 | 2014-02-12 | 中矿金业股份有限公司 | Down-hole draw shaft automatic dust clearing system |
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| CN104481573A (en) * | 2014-12-16 | 2015-04-01 | 中矿金业股份有限公司 | Inverted segment type draw shaft dustproof device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443349A (en) * | 2019-08-27 | 2021-03-05 | 南京宝地梅山产城发展有限公司 | Intelligent dust removal system for underground mine drop shaft |
| CN112443349B (en) * | 2019-08-27 | 2023-09-15 | 南京宝地梅山产城发展有限公司 | Intelligent dust removal system for underground mine drop shaft |
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| CN106351683B (en) | 2019-03-29 |
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