CN106823703A - It is a kind of to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced - Google Patents
It is a kind of to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced Download PDFInfo
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- CN106823703A CN106823703A CN201710144122.1A CN201710144122A CN106823703A CN 106823703 A CN106823703 A CN 106823703A CN 201710144122 A CN201710144122 A CN 201710144122A CN 106823703 A CN106823703 A CN 106823703A
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- 239000000779 smoke Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 81
- 238000000889 atomisation Methods 0.000 claims abstract description 32
- 208000011580 syndromic disease Diseases 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 238000009423 ventilation Methods 0.000 abstract description 8
- 238000005457 optimization Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 133
- 238000009833 condensation Methods 0.000 description 10
- 230000005494 condensation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The dehumanization method that returnairshaft mouthful white smoke phenomenon is produced can be eliminated the invention discloses a kind of, the distinguished and admirable dehydrating unit of high temperature saturation of use is containing doab (1), range of atomization (2), dehumidifying area (3), Chu Liu areas (4), roller (19), guide rail (20)；Doab (1) top is installed cover plate (14), side and installs electric gate valve (15), and atmosphere temperature transducer (21) is installed in outside；Hot air temperature sensor (21a) and air velocity transducer (22) are installed in range of atomization (2) import；Screen pack (11) is installed in dehumidifying area (3), and air temperature sensor (21b) after dehumidifying is installed in outlet；PLC control system (23) controls cover plate (14), electric gate valve (15), motor-driven valve (7), spray pump (6).The present invention has the advantages that structure optimization, atomization are abundant, demisting efficiency is high, ventilation energy consumption is small, realizes the dehumidifying on demand by the change of wind-warm syndrome air quantity.
Description
Technical field
The invention belongs to mine ventilation environmental technology field, and in particular to one kind makes underground mine returnairshaft high temperature saturation wind
Stream condensation and dewfall, the dehumanization method for avoiding being produced in well head " white smoke " phenomenon.
Background technology
Mine ventilation system it is fresh it is distinguished and admirable from earth's surface along downcast enter, enclosed with down-hole mining Work machine equipment, humidity
There is hot and humid area in various hot wet sources such as rock wall surface, ore autoxidation so that underground air temperature gradually rises, humidity increases
Plus.Usually, mine down-hole relative air humidity is close to 100% saturation state, and now mine air temperature is close to dew-point temperature,
As long as environment temperature is less than mine air temperature, vapor in air is by condensation and dewfall.Therefore, when underground hot-air is along return air
Well well head runs into the earth's surface cold air less than own temperature when discharging, the vapor in mine saturation hot-air will be lowered the temperature cold
But, condensation and dewfall, and returnairshaft air quantity is big, air velocity is high, the condensation globule is broken point in the case where the impact of high velocity air is promoted
Solution flings well head into the more tiny water fog particle of particle diameter, forms the white water smoke of return air well head, can go out wellhead ground and may be up to
More than 50 rice, " white smoke " is seemed on the visual field, and returnairshaft becomes underground " chimney ", triggers the uneasiness of mining area nearby residents whole-heartedly
Reason, if especially mine is in urban fringe, brings serious visual pollution.
The most of mines of China are away from city, and many places are in mountain area knob thus this " smoldering " for return air well head
Phenomenon, the country is rarely reported.But as country is to the pay attention to day by day of environmental protection, " white smoke " pollution of returnairshaft well head is gradually drawn
The concern of people is played.According to literature search,《Modern Mineral》3rd phase in 2013《Returnairshaft dirt wind resolution design》One text
In research and analyse well head " white cigarette " phenomenon, it is indicated that " white cigarette " is substantially " white haze " and proposes resolution, from inertia force with
Distinguished and admirable cooling joint demisting technical scheme.The technical scheme sets several meters of pylons high above well head and cover closure well head is empty
Between, closing well head space above sets circular spray tube, and surrounding sets demisting corrugated sheet.But further analysis, the program is deposited
In following shortcoming：
1) moisture collected only in the confined space above pit shaft, being atomized, remove atomization again, atomization is insufficient, is not atomized
Hot-air low temperature cold air is met on the outside of demisting plate still can largely haze, so look more like towering " chimney ", demisting
Effect is poor, visual effect also declines；
2) when ventilating system returnairshaft air themperature is raised or air quantity is increased or wind-warm syndrome air quantity increases simultaneously, without corresponding
Auto-adjustment control measure, except fog effect is difficult to ensure that；
3) summer atmospheric temperature season higher or returnairshaft hot air temperature are more or less the same even above with atmospheric temperature
Atmospheric temperature operating mode, returnairshaft well head is not in white water smoke phenomenon, and device integrally closed well head superjacent air space,
In the case of the pollutant discharge in compliance with the standard such as returnairshaft air-borne dust, returnairshaft air discharges earth's surface, Shi Bizeng yet by demisting plate
Plus the flowing resistance of ventilating system returnairshaft and ventilating system energy consumption；
4) device is constructed above vertical, and without effective distinguished and admirable cut-off measure, and returnairshaft hot-air continually emits
Go out, site operation is difficult, be equally not easy to later maintenance management.
The content of the invention
The purpose of the present invention is dirty aiming at well head " white smoke " vision that mine returnairshaft high temperature saturated air is formed
Dye phenomenon, and prior art exist fogging degree it is low, except fog effect is poor, ventilation high energy consumption, construction risk greatly, the later stage
The technical problems such as maintenance management difficulty, and provide a kind of atomization fully, demisting efficiency is high, ventilation energy consumption is small, can become by wind-warm syndrome air quantity
That changes can eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced.
To realize above-mentioned purpose of the invention, the present invention is a kind of can to eliminate removing for returnairshaft mouthful white smoke phenomenon generation
Wet method uses following technical scheme：
A kind of high temperature saturation wind that can eliminate the dehumanization method use that returnairshaft mouthful white smoke phenomenon is produced of the present invention
Stream dehydrating unit is by spraying cooling system, doab, range of atomization, dehumidifying area, Chu Liu areas, sensor and is connected with sensor
PLC control system combination is constituted；Described doab is arranged in return air well shaft top, and doab is by along return air well shaft cylinder
Mouth be spaced from inside to outside build by laying bricks or stones interior protection parapet, outer protecting wall combination surround, cover plate is provided with the top of outer protecting wall, prevent outside
Revetment side sets maintenance door, and electric gate valve is set in outer protecting wall opposite side, so as to surround sealing space, collects returnairshaft well
The hot-air of discharge in cylinder；Doab is by electric gate valve and range of atomization UNICOM, range of atomization, dehumidifying area, the air channel shell in Chu Liu areas
Body is linked in sequence, and in the outlet setting bell mouth shape diffuser in Chu Liu areas；Air channel housing is made using stainless steel plate, in order to
Heat transfer；Described spraying cooling system is connected by water cooling pond, spray pump, motor-driven valve, spray supervisor, spray branch pipe, shower nozzle
Constitute, described spray branch pipe includes vertical spray branch pipe, level spray branch pipe, vertical spray branch pipe is arranged in range of atomization,
Level spray branch pipe is arranged in doab and is located at interior protection parapet top, and water cooling pond provides temperature and is less than returnairshaft hot-air
Spray cold water low-temperature receiver, spray pump variable frequency adjustment control water hydraulic pressure, spraying cooling water through spray supervisor, spray branch pipe enter respectively
Enter doab, range of atomization, condensation atomization hot-air；Described shower nozzle is separately mounted to vertical spray branch using countercurrent spray mode
On pipe, level spray branch pipe；In dehumidifying area built with 2-4 roads screen pack, screen pack is formed using braided steel wire, the net of screen pack
Hole size is 0.1~5mm × 0.1~5mm.Water fog particle after atomization is adsorbed by Multi-channel filtering net with dust granules, absorbed,
Adhere on the mesh of screen pack or directly come off；Described sensor includes that atmosphere temperature transducer, hot air temperature are sensed
Air temperature sensor, air velocity transducer after device, dehumidifying；Atmosphere temperature transducer is installed on outer wellhead protecting wall outside, monitoring
Well head Earth Surface Atmosphere temperature；Hot air temperature sensor is arranged on range of atomization import with air velocity transducer, and returnairshaft is monitored respectively
Hot air temperature, the air quantity of pit shaft outlet；Air temperature sensor is arranged on the outlet of dehumidifying area after dehumidifying, monitors after dehumidifying
Air themperature.PLC control system receives the data that each sensor is gathered, and adjust, control cover plate, electric gate valve, motor-driven valve,
Spray pump.
Read automatically by PLC control system the temperature T0 of atmosphere temperature transducer, the temperature T1 of hot air temperature sensor,
The wind speed V of the temperature T2 of air temperature sensor, air velocity transducer after dehumidifying.PLC control system multilevel iudge T0, T1, T2, V
Relation between four parameters, by adjusting control cover plate, electric gate valve, motor-driven valve, spray pump, PLC control system is according to such as
Lower method realizes the dehumidifying on demand changed by wind-warm syndrome, air quantity：
1) when T0-T1 >=0 °, i.e., returnairshaft hot air temperature is less than Earth Surface Atmosphere temperature, and under the operating mode, returnairshaft heat is empty
Gas can be expelled directly out return air well shaft, and being contacted with atmospheric air will not occur condensation and dewfall.Now, by PLC control system,
The cover plate on doab is opened, electric gate valve is closed, spray pump and motor-driven valve is simultaneously closed off, stops spray, make returnairshaft heat empty
Gas is expelled directly out from return air well shaft top；
2) as 0 ° of T0-T1 ＜, i.e., returnairshaft hot air temperature is higher than earth's surface atmospheric temperature, under the operating mode, by PLC controls
System, the cover plate closed on doab opens electric gate valve, and spray pump and motor-driven valve are opened in succession, starts spray, makes returnairshaft
Hot-air enters range of atomization from doab, starts to carry out spraying cooling to hot-air and be atomized hot-air, and through the mistake in the area that dehumidifies
Filter screen absorption, the lasting dehumidifying of absorption, air is finally discharged through the diffuser in Chu Liu areas after dehumidifying, completes the whole flow that dehumidifies.
Meanwhile, in order to ensure effect on moisture extraction, prevent because being spread when air themperature is higher than cold atmospheric cold air after dehumidifying
There is condensation and dewfall mist formation phenomenon in device, and returnairshaft air themperature should try one's best close to Earth Surface Atmosphere cold air after cool-down dehumidification
Temperature, but also to consider spraying cooling system water and spray pump energy consumption, therefore, the change of the wind speed V according to air velocity transducer
Scope is the excursion of returnairshaft hot-air air quantity, there is provided dehumidifying after air temperature sensor temperature T2 and atmospheric temperature
Temperature difference relation between the temperature T0 of sensor, the temperature difference is by adjusting the frequency shift shower water of spraying cooling system spray pump
Amount control.PLC control system controls the frequency of spray pump according to the regulation of T0, T1, T2, V relation：
As 0 ° of T0-T1 ＜, V≤5m/s, the frequency of spray pump is adjusted, make T2-T0≤10 °；As 0 ° of T0-T1 ＜, 5 ＜ V≤
10m/s, adjusts the frequency of spray pump, makes T2-T0≤6 °；As 0 ° of T0-T1 ＜, 10 ＜ V≤15m/s, the frequency of spray pump is adjusted,
Make T2-T0≤3 °.
Described range of atomization, dehumidifying area, the air channel housing in Chu Liu areas are installed and passed through using piecewise combination horizontal structure formula
Flange is connected, the rectangular cross-section structure of air channel housing；In air channel, the bottom of housing is equipped with roller, and roller is arranged on guide rail,
Can be moved on guide rail.
Described interior protection parapet for columnar structured, apart from the 0.2~0.5m of nozzle of return air well shaft, height 0.5~
1.5m；Described outer protecting wall is square structure, protection parapet wall closest approach 1~3m of distance in interval, 3~10m of height.
The cover plate being provided with the top of outer protecting wall is rotary type cover plate, and cover plate uses Electronic control, and anglec of rotation α is 0
~270 ° of scopes are adjustable.
The mesh size of described screen pack is preferred for 0.3~3mm × 0.3~3mm, screen pack using a diameter of 0.1~
The braided steel wire of 0.5mm, per pass screen pack is formed by stacking by multiple filtration net, and the thickness after superposition is 100~150mm.Often
The aperture of road screen pack is gradually increased along wind direction from import to outlet.
A kind of dehumanization method that can eliminate the phenomenon generation of returnairshaft mouthful white smoke of the present invention uses above technical scheme
Afterwards, with advantages below：
(1) hot air temperature according to mine return air well is high, saturation state feature, is realized back using the device and method
The dehumidifying that cools of ventilating shaft air, and with distinguished and admirable effect is purified, doab, range of atomization, dehumidifying area, four, Chu Liu areas are set
Area, more fully precooling cooling down hot-air and can be atomized hot-air, and dehumidification rate is high, and good visual effect effectively disappears
Except the visual pollution that " white smoke " in return air well head vertical direction is caused；
(2) when summer atmospheric temperature season higher or returnairshaft hot air temperature are more or less the same or even high with atmospheric temperature
When atmospheric temperature operating mode, doab cover plate can be opened, close electric flashboard, it is distinguished and admirable to be expelled directly out from well head, ventilation is not increased
SR, overcoming closing well head superjacent air space in the prior art increases ventilating system resistance and energy yet by dehydrating unit
The shortcoming of consumption；
(3) PLC control system is set, temperature sensor, air velocity transducer is set up, is realized and is changed according to wind-warm syndrome, air quantity
Dehumidifying on demand；
(4) range of atomization, dehumidifying area, Chu Liu areas horizontal configuration arrangement, range of atomization import set electric gate valve, can be effective
Cut-off is distinguished and admirable, is easy to later maintenance to manage.
Brief description of the drawings
Fig. 1 is the structure arrangement schematic diagram of the distinguished and admirable dehydrating unit of high temperature saturation that the present invention is used；
Fig. 2 is the A-A views in Fig. 1.
Reference is：1- doabs；2- ranges of atomization；3- dehumidifying area；4- Chu Liu areas；5- water cooling ponds；6- spray pumps；7- electricity
Dynamic valve；8- spray supervisors；9- vertical spray branch pipes；9 '-level sprays branch pipe；10- shower nozzles；11- screen packs；12- diffusers；
13- flanges；14- cover plates；15- electric gate valves；16- maintenance doors；Protection parapet in 17-；The outer protecting walls of 18-；19- rollers；20- leads
Rail；21- atmosphere temperature transducers；21a- hot air temperature sensors；Air temperature sensor after 21b- dehumidifying；22- wind speed is passed
Sensor；23-PLC control systems；24- air channels housing；25- return air well shafts.
Specific embodiment
To further describe the present invention, returnairshaft spoken parts in an opera can be eliminated to one kind of the present invention with reference to the accompanying drawings and examples
The dehumanization method that color smog phenomenon is produced is described in further details.
There is the structure arrangement schematic diagram of the distinguished and admirable dehydrating unit of high temperature saturation of the present invention use shown in Fig. 1 and combine Fig. 2
Find out, a kind of high temperature saturation that can eliminate the dehumanization method use that returnairshaft mouthful white smoke phenomenon is produced of the present invention is distinguished and admirable to be removed
Wet device is by spraying cooling system, doab 1, range of atomization 2, dehumidifying area 3, Chu Liu areas 4, sensor and is connected with sensor
The combination of PLC control system 23 is constituted；Described doab 1 is arranged in the top of return air well shaft 1, and doab 1 is by along returnairshaft
The nozzle of pit shaft 1 be spaced from inside to outside build by laying bricks or stones interior protection parapet 17, outer protecting wall 18 combination surround；At the top of outer protecting wall 18
Cover plate 14 is provided with, cover plate 14 is rotary type cover plate, and cover plate 14 uses Electronic control, and anglec of rotation α can in 0~270 ° of scope
Adjust.Maintenance door 16 is set in the side of outer protecting wall 18, electric gate valve 15 is set in the opposite side of outer protecting wall 18.Described interior protection
Parapet 17 is columnar structured, apart from the 0.2~0.5m of nozzle of return air well shaft 1,0.5~1.5m of height；Described outer protection
Wall 18 is square structure, the protection wall closest approach 1~3m of distance of parapet 17 in interval, 3~10m of height；It is interior protection parapet 17 with
Spacing distance between outer protecting wall 18 as escape way, be easy in doab 1 installation of spraying cooling system with it is rear
Phase maintenance management.Doab 1 is by electric gate valve 15 and the UNICOM of range of atomization 2, range of atomization 2, dehumidifying area 3, the air channel shell in Chu Liu areas 4
Body 24 is installed using piecewise combination horizontal structure formula and is linked in sequence by flange 13, and system is easy to using sectionally assembled structure
Maintenance management, also allows for lengthening range of atomization 2 with dehumidifying area 3 because returnairshaft air quantity is increased or wind-warm syndrome is raised.Air channel housing 24
It is fabricated to using stainless steel plate, stainless steel plate thermal conductivity factor is big, is conducive to being carried out by steel plate the air and heat of lower temperature
Returnairshaft air conducts heat, and returnairshaft air themperature is further reduced, so as to reduce spraying cooling system water and energy consumption；In air channel
The bottom of housing 24 is equipped with roller 19, and roller 19 is arranged on guide rail 20；Described spraying cooling system is by water cooling pond 5, spray
Pump 6, motor-driven valve 7, spray supervisor 8, spray branch pipe, shower nozzle 10 is drenched to connect and compose, spray branch pipe from 8 top sets of spray supervisor,
Installed together every 1~2m, and a motor-driven valve 7 is set per branch all the way, regulation control water spray.Described spray branch pipe bag
Vertical spray branch pipe 9, level spray branch pipe 9 ' is included, vertical spray branch pipe 9 is arranged in range of atomization 2, level spray branch pipe 9 ' is pacified
In the doab 1 and be located at the interior top of protection parapet 17, the level installed in doab 1 spray branch pipe 9 ' and shower nozzle 10 be for
Pretreatment purification hot-air；Described shower nozzle 10 is separately mounted to vertical spray branch pipe 9, level and sprays using countercurrent spray mode
Drench on branch pipe 9 '；In dehumidifying area 3 built with 2-4 roads screen pack 11, screen pack 11 is formed using braided steel wire, the net of screen pack 11
Hole size is 0.3~3mm × 0.3~3mm；Screen pack 11 is installed together every 0.5~1m, and the aperture of screen pack 11 is along distinguished and admirable side
It is gradually increased to from import to outlet, to reduce filtration resistance, the water fog particle after atomization is with dust granules by Multi-channel filtering
The absorption of net 11, absorb, adhere on the mesh of screen pack 11 or directly come off, more than 90% moisture in removing outgoing airflow
So as to reach dehumidifying purpose；The outlet in Chu Liu areas 4 sets bell mouth shape diffuser 12, into the dehumidifying in Chu Liu areas 4 after air
Temperature reduces with the temperature difference of ambient air temp, when being contacted with air cold air, will not produce white water smoke, is finally reached and removes
Wet, elimination well head water smoke phenomenon；Described sensor includes atmosphere temperature transducer 21, hot air temperature sensor 21a, dehumidifying
Air temperature sensor 21b, air velocity transducer 22 afterwards；It is liftoff that atmosphere temperature transducer 21 is installed on the outside of outer wellhead protecting wall 18
About 1.2m eminences, for monitoring the atmospheric temperature near well head；Hot air temperature sensor 21a is arranged on air velocity transducer 22
The import of range of atomization 2, is respectively used to monitor hot air temperature, the air quantity of the outlet of return air well shaft 25；Air themperature sensing after dehumidifying
Device 21b is arranged on dehumidifying area 3 and exports, for monitoring the air themperature after dehumidifying.PLC control system 23 is connected with each sensor,
The data that each sensor is gathered are received, and adjusts control cover plate 14, electric gate valve 15, motor-driven valve 7, spray pump 6.
A kind of dehumanization method that can eliminate the phenomenon generation of returnairshaft mouthful white smoke of the present invention uses above-mentioned high temperature saturation
Distinguished and admirable dehydrating unit, temperature T0, the hot air temperature sensor of atmosphere temperature transducer 21 are read by PLC control system 23 automatically
Temperature T2, the wind speed V of air velocity transducer 22, PLC control system 23 of air temperature sensor 21b after temperature T1, the dehumidifying of 21a
Relation between tetra- parameters of multilevel iudge T0, T1, T2, V, by adjusting control cover plate 14, electric gate valve 15, motor-driven valve 7, spray
Pump 6 is drenched, PLC control system 23 realizes the dehumidifying on demand changed by wind-warm syndrome, air quantity as follows：
1) when T0-T1 >=0 °, i.e., returnairshaft hot air temperature is less than Earth Surface Atmosphere temperature
Under the operating mode, returnairshaft hot-air is expelled directly out return air well shaft 25, and being contacted with atmospheric air to condense
Condensation, now, by PLC control system 23, opens the cover plate 14 on doab 1, closes electric gate valve 15, simultaneously closes off spray
Pump 6 and each motor-driven valve 7, stop spray, returnairshaft hot-air is expelled directly out from the top of return air well shaft 25, do not increase ventage
System resistance, has saved mine ventilation system fan energy consumption, and spray pump energy consumption is not produced yet；
2) as 0 ° of T0-T1 ＜, i.e., returnairshaft hot air temperature is higher than earth's surface atmospheric temperature
Under the operating mode, by PLC control system 23, the cover plate 14 closed on doab 1 opens electric gate valve 15, in succession
Spray pump 6 and motor-driven valve 7 are opened, starts spray, returnairshaft hot-air is entered range of atomization 2 from doab 1, started to hot-air
Carry out spraying cooling and be atomized hot-air, and screen pack 11 through the area 3 that dehumidifies is adsorbed, absorbs lasting dehumidifying, air is passed through after dehumidifying
The diffuser 12 in Chu Liu areas 4 is finally discharged, and completes whole dehumidifying flow.
Because each mine ventilation system returnairshaft air quantity, wind-warm syndrome are different, Earth Surface Atmosphere temperature is also different, takes the dehydrating unit
The vaporific degree of outlet depends on the temperature difference between air themperature and atmospheric temperature after dehumidified air quantity and dehumidifying, if air quantity is got over
The water capacity of big condensation and dewfall again is bigger, if along with the temperature difference is bigger, outlet air is in contact generated water with air
Mist will be more obvious.In order to ensure effect on moisture extraction, prevent because after dehumidifying air themperature be higher than cold atmospheric cold air when in diffuser
12 there is condensation and dewfall mist formation phenomenon, and returnairshaft air themperature T2 should try one's best close to the cold sky of Earth Surface Atmosphere after cool-down dehumidification
Temperature degree T0, but also to consider spraying cooling system water and the energy consumption of spray pump 6, therefore, the wind speed V according to air velocity transducer 22
Excursion be returnairshaft hot-air air quantity excursion, there is provided dehumidifying after air temperature sensor 21b temperature T2
And the temperature difference relation between the temperature T0 of atmosphere temperature transducer 21, the temperature difference is by adjusting spraying cooling system spray pump 6
Frequency shift water spray is controlled.When returnairshaft hot-air air quantity wind speed is big, the T2-T0 temperature difference is small, and diffuser exit 12 is empty to the cold
Otherwise depressed mist is not it is obvious that mist formation is more obvious.T0, T1, T2, V relation are as follows：As 0 ° of T0-T1 ＜, V≤5m/s, adjust
The frequency of spray pump 6 is saved, makes T2-T0≤10 °；As 0 ° of T0-T1 ＜, 5 ＜ V≤10m/s, the frequency of spray pump 6 is adjusted, make T2-
T0≤6°；As 0 ° of T0-T1 ＜, 10 ＜ V≤15m/s, the frequency of spray pump 6 is adjusted, make T2-T0≤3 °.
Claims (6)
- It is 1. a kind of can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, it is characterised in that：The height of use is had enough to eat and wear With distinguished and admirable dehydrating unit by spraying cooling system, doab (1), range of atomization (2), dehumidifying area (3), Chu Liu areas (4), sensor and The PLC control system (23) connected with sensor combines composition；Described doab (1) is arranged in return air well shaft (1) top, Doab (1) is by being spaced interior protection parapet (17), the outer protecting wall (18) built by laying bricks or stones from inside to outside along return air well shaft (1) nozzle Combination is surrounded, and cover plate (14) is provided with outer protecting wall (18) top, sets maintenance door (16) in outer protecting wall (18) side, outside Protecting wall (18) opposite side sets electric gate valve (15)；Doab (1) is by electric gate valve (15) and range of atomization (2) UNICOM, mist Change area (2), dehumidifying area (3), the air channel housing (24) of Chu Liu areas (4) are linked in sequence, and in the outlet setting loudspeaker of Chu Liu areas (4) Mouth shape diffuser (12)；Described spraying cooling system is by water cooling pond (5), spray pump (6), motor-driven valve (7), spray supervisor (8), spray branch pipe, shower nozzle (10) are connected and composed, and described spray branch pipe includes vertical spray branch pipe (9), level spray branch pipe (9 '), in range of atomization (2), level sprays branch pipe (9 ') and is arranged in doab (1) and is located at vertical spray branch pipe (9) Interior protection parapet (17) top；Described shower nozzle (10) is separately mounted to vertical spray branch pipe (9), water using countercurrent spray mode On flat spray branch pipe (9 ')；In dehumidifying area (3) built with 2-4 roads screen pack (11), screen pack (11) is formed using braided steel wire, The mesh size of screen pack (11) is 0.1~5mm × 0.1~5mm；Described sensor include atmosphere temperature transducer (21), Air temperature sensor (21b), air velocity transducer (22), atmosphere temperature transducer after hot air temperature sensor (21a), dehumidifying (21) outer wellhead protecting wall (18) outside is installed on, hot air temperature sensor (21a) is with air velocity transducer (22) installed in mist Change area (2) import, air temperature sensor (21b) is arranged on dehumidifying area (3) outlet after dehumidifying；Read temperature T0, the hot air temperature sensor (21a) of atmosphere temperature transducer (21) automatically by PLC control system (23) Temperature T1, dehumidifying after air temperature sensor (21b) temperature T2, the wind speed V of air velocity transducer (22), PLC control system (23) relation between tetra- parameters of multilevel iudge T0, T1, T2, V, by adjusting control cover plate (14), electric gate valve (15), electricity Dynamic valve (7), spray pump (6), PLC control system (23) realize the dehumidifying on demand changed by wind-warm syndrome, air quantity as follows：1) when T0-T1 >=0 °, by PLC control system (23), the cover plate (14) on doab (1) is opened, closes electric gate valve (15) spray pump (6) and motor-driven valve (7), are simultaneously closed off, stops spray, make returnairshaft hot-air from return air well shaft (25) top It is expelled directly out；2) as 0 ° of T0-T1 ＜, by PLC control system (23), the cover plate (14) closed on doab (1) opens electric gate valve (15) spray pump (6) and motor-driven valve (7), are opened in succession, starts spray, returnairshaft hot-air is entered from doab (1) and be atomized Area (2), starts to carry out spraying cooling to hot-air and be atomized hot-air, and through screen pack (11) absorption, the absorption of dehumidifying area (3) Lasting dehumidifying, air is finally discharged through the diffuser (12) of Chu Liu areas (4) after dehumidifying, completes whole dehumidifying flow.
- 2. it is a kind of as claimed in claim 1 can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, its feature It is：In the case of 2) being planted the, PLC control system (23) is according to T0, T1, T2, V relation regulation control spray pump (6) Frequency：As 0 ° of T0-T1 ＜, V≤5m/s, the frequency of regulation spray pump (6) makes T2-T0≤10 °；As 0 ° of T0-T1 ＜, 5 ＜ V≤ 10m/s, the frequency of regulation spray pump (6), makes T2-T0≤6 °；As 0 ° of T0-T1 ＜, 10 ＜ V≤15m/s, regulation spray pump (6) Frequency, make T2-T0≤3 °.
- 3. a kind of as claimed in claim 1 or 2 can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, it is special Levy and be：Described range of atomization (2), dehumidifying area (3), air channel housing (24) piecewise combination horizontal structure formula peace of Chu Liu areas (4) Fill and connected by flange (13)；In air channel, the bottom of housing (24) is equipped with roller (19), and roller (19) is installed in guide rail (20) On.
- 4. it is a kind of as claimed in claim 3 can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, its feature It is：Described interior protection parapet (17) is columnar structured, apart from the 0.2~0.5m of nozzle of return air well shaft (1), height 0.5~1.5m；Described outer protecting wall (18) is square structure, protection parapet (17) wall closest approach 1~3m of distance in interval, Highly 3~10m.
- 5. it is a kind of as claimed in claim 4 can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, its feature It is：The cover plate (14) being provided with outer protecting wall (18) top is rotary type cover plate, and cover plate (14) uses Electronic control, rotation Angle [alpha] is adjustable in 0~270 ° of scope.
- 6. it is a kind of as claimed in claim 5 can to eliminate the dehumanization method that returnairshaft mouthful white smoke phenomenon is produced, its feature It is：The mesh size of described screen pack (11) is 0.3~3mm × 0.3~3mm, screen pack (11) using a diameter of 0.1~ The braided steel wire of 0.5mm, per pass screen pack (11) is formed by stacking by multiple filtration net, the thickness after superposition be 100~ 150mm。
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |