CN104500123B - A kind of distance tunnel construction phase quick ventilation and exhaust device and method - Google Patents
A kind of distance tunnel construction phase quick ventilation and exhaust device and method Download PDFInfo
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- CN104500123B CN104500123B CN201410810707.9A CN201410810707A CN104500123B CN 104500123 B CN104500123 B CN 104500123B CN 201410810707 A CN201410810707 A CN 201410810707A CN 104500123 B CN104500123 B CN 104500123B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 60
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 12
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 8
- 231100000719 pollutant Toxicity 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 238000005422 blasting Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000009931 harmful effect Effects 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 239000003517 fume Substances 0.000 description 5
- 239000003500 flue dust Substances 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
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- 238000005553 drilling Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
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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
- 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
- E21F1/10—Air doors
-
- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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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)
- Ventilation (AREA)
Abstract
One distance tunnel construction phase quick ventilation and exhaust device of the present invention, including gantry support, it is separately positioned on the fixed throttle of gantry support upper end and the movable air door of its side, the propeller fan arranged through fixed throttle and jet blower, and electric machine control system；Fixed throttle with launch after movable air door match the most distinguished and the most admirable for cut off in tunnel；The air intake vent of propeller fan and the air outlet of jet blower are arranged on the fixed throttle side near the scope of operation, and the air outlet of propeller fan connects flexible air duct, and the air outlet of flexible air duct extends to outside tunnel.Ventilation smoke exhaust method of the present invention, arrange in tunnel and cut off the most distinguished and the most admirable air door, the pollution space of safe space and closing is formed respectively in air door both sides, ventilation installation is utilized to be pumped to outside hole by the air exhaust passage closed with air-flow by the pollutant polluted in space, utilize blast apparatus by safe space air blast in polluting space, make pollutant add the entrance of flow speed and direction ventilation installation.
Description
Technical field
The present invention relates to tunnel construction technology, a kind of distance tunnel construction phase quickly ventilates
Smoke extractor and method.
Background technology
Along with the high speed stable development of China's economic construction, (such as the row such as water power, highway in engineering construction
Industry) occur in that increasing distance tunnel, these distance tunnels are using conventional drilling and blasting method excavation
Construction time, one of difficult problem of a ventilation smoke exhaust problem always puzzlement engineering.For a long time, in distance
During Tunnel excavation, when excavation scope of operation distance tunnel mouth is more than 2～after 3Km, and excavation ventilates
Smoking problem is difficult to solve, especially after Excavation blasting operation, containing substantial amounts of CO, NO, NO2
In toxic and harmful and dust, use traditional draft type, these toxic and harmfuls and dust from
Bursting work face starts, and need to flow through whole hole section of having excavated and discharge, and dirty wind injection is whole has excavated hole section,
Ventilation smoke exhaust was for up to 3～4 hours, or having excavated air near the scope of operation does not flows or flow
Slowly, ventilation smoke exhaust weak effect, in addition, it is also difficult to solve High-geotemperature problem near the scope of operation, construction is made
Industry bad environments.Therefore, the ventilation condition that the construction time is bad the most then makes numerous operating personnels be in for a long time
Working in severe underground environment, life and health is affected, and the life of operating personnel in heavy then serious threat
Life health and safety, even has influence on construction of tunnel progress and duration.
Summary of the invention
For problems of the prior art, the present invention provides a kind of reasonable in design, safe and reliable, behaviour
Facilitating, ventilation smoke exhaust efficiency is high, can be effectively improved the distance tunnel construction of underground construction working environment
Phase quick ventilation and exhaust device and method.
The present invention is to be achieved through the following technical solutions:
One distance tunnel construction phase quick ventilation and exhaust device of the present invention, including gantry support, respectively
It is arranged on the fixed throttle of gantry support upper end and the movable air door of its side, is arranged on through fixed throttle
The propeller fan of the upper end of gantry support and jet blower, and movable air door, propeller fan and penetrate
The electric machine control system of flow fan；Fixed throttle matches for cutting off tunnel with the movable air door after expansion
In the most distinguished and the most admirable；The air intake vent of propeller fan and the air outlet of jet blower are arranged on fixed throttle and lean on
The side of the nearly scope of operation, the air outlet of propeller fan connects flexible air duct, and the air outlet of flexible air duct prolongs
Reach outside tunnel.
Preferably, gantry support includes support platform and support post, and support platform is frame structure, under
End is at least symmetrical arranged four support posts, and upper end is coated with the gripper shoe being fixedly installed；Adjacent tunnel is same
Between the support post that one sidewall is arranged, the frame structure inside with support platform forms triangle by bracing piece
Supporting construction；The support post bottom that the same sidewall of adjacent tunnel is arranged is fixed on jointly puts down with canal axes
On the connecting plate that row is arranged.
Further, the hydraulic cylinder being respectively arranged to altitude mixture control on pillar, support post and connecting plate are supported
Connect cylinder body and the piston rod of hydraulic cylinder respectively；The hydraulic control system of hydraulic cylinder is arranged on gantry support
On, for controlling linkage operation or the separate operaton of each hydraulic cylinder.
Preferably, electric machine control system includes the motor this locality switch board being arranged on gantry support, and
It is arranged on the motor long-distance control cabinet of home beyond blast area；Motor this locality switch board and motor are long-range
Switch board is by wirelessly or non-wirelessly connecting communication.
Further, movable air door is arranged on the side of propeller fan air outlet, uses layer flexible air curtain
Or it is provided with the shutter door of chute.
Preferably, propeller fan is arranged on gantry support upper center, and jet blower is symmetricly set on axle
The both sides of flow blow；The air intake vent of propeller fan and the air outlet of jet blower are respectively arranged with protection
Net.Flexible air duct is arranged along the hanging of tunnel top, and it arranges rigidity wind at corner more than 15 degree when turning round
Cylinder transition connects.
One distance tunnel construction phase quick ventilation smoke exhaust method of the present invention, arranges partition axle in tunnel
To distinguished and admirable air door, between work surface and air door, form the pollution space of closing, at air door to tunnel
Interruption-forming safe space；Then the ventilation installation of air door it is utilized through by the pollutant that pollute in space with gas
Flow and be pumped to outside hole by the air exhaust passage closed, be utilized through the blast apparatus of air door by safety simultaneously
Space air blast in polluting space, makes pollutant add the entrance of flow speed and direction ventilation installation.
Preferably, air door includes superposed standing part and lower removable part, at non-blasting procedure
Construction period, it is possible to open movable air door, keep the ventilation installation through standing part and blast apparatus
Normal operation, for working face cooling and carry out blowdown operation in real time.
Preferably, the position that air door is arranged is more than or equal to 50 meters from the distance of work surface, and less than logical
The ventilation critical distance of wind devices and the air blast critical distance of blast apparatus.
Compared with prior art, the present invention has a following useful technique effect:
Device of the present invention, by arrange fixed throttle and movable air door form mutual cooperation,
The most distinguished and the most admirable in tunnel is cut off, thus defines the space of two relative closures, to pollutant
Natural excrement block and isolate, and by gantry support, two air doors are supported, fixing and
Location, it is ensured that its action effect and structural strength；By the control of movable air door, it is possible at satisfied partition
While requirement, it is ensured that avoid its installing, transport, interference and shadow to other operations when using
Ring；Dirt is stirred and pressurizes by the jet blower that recycling is arranged, it is possible to gather axial flow rapidly
The air intake vent of ventilation blower, is pumped to outside hole through flexible air duct by its guiding, it is achieved fast to dirt
Speed is discharged, and safe and reliable, simple to operate, efficiency of construction is greatly improved, and closely needs 10～20 minutes with regard to energy
Poisonous and hazardous dust and the discharge of gas in enough completing hole, and accelerate the gas flowing of work surface, carry
High exchange rate, reduces work surface temperature, it is ensured that the working environment that safety is good；Range
Extensively, it is possible to meet the distance tunnel construction of the various sections such as gateway opening shape, the shape of a hoof, rectangle, circle
The requirement of period quick ventilation smoke exhaust.
Further, arranged by the support platform of frame structure, it is possible to fixed throttle, the axle to top
Flow blow and jet blower carry out stable and support location reliably, simultaneously to movable air door below
There is provided install and fixed position, gripper shoe can to forming good supplementary partition between two air doors, if
The triangular support configurations put can improve the overall rigidity of structure of gantry support and intensity；The company being equipped with
Plate, it is possible to ensure the mutual balance and stability between support post.
Further, utilize the hydraulic cylinder arranged to carry out the regulation of height, fixed throttle can not only be ensured
With combining closely of tunnel top, and can adapt to and meet the bottom surface situation of different tunnel, improve it
Adaptation can, quick and easy for installation, utilize its hydraulic control system can realize flexibly being synchronized with the movement or
It it is individually regulation.
Further, the electric machine control system that split is arranged is utilized, it is possible to meeting what motor controlled in time
On the basis of, it is achieved remote control, it is ensured that personnel are perfectly safe.
Further, by the setting of shutter door, it is possible to complete quickly and easily movable air door function and
Operation, is that vertical tunnel can carry out closing cooperation to middle and lower part, can by the flexible air curtain of multilamellar
Realize intercepting and blocking to the tunnel of other form of fractures, meet the folding and unfolding of movable air door and stop requirement.
Further, utilize the distribution to propeller fan and jet blower to be equipped with, improve it
The effect of pump drainage and efficiency, utilize the protection network set up can preferably protect the work of equipment to pacify simultaneously
Entirely, and dependability and life-span；By the hanging of flexible air duct is arranged, it is to avoid to tunnel its
Its equipment and personnel and the interference of construction, by the transition of rigidity air duct, it is ensured that it is smooth and easy that it ventilates
With pump drainage speed.
Method of the present invention, first carries out cutting off subregion by tunnel, thus by be diffused
Dirt carries out stopping isolation, and concentrates in a less closing space, it is possible to increase its air pressure inside
While, it is to avoid leaking and pollution to other regions of dirt；Again by blast apparatus to polluting sky
While interior air blast ensures discharge pressure, pollutant are stirred, additionally it is possible to accelerate work surface and carry out
The speed of heat exchange, utilizes ventilation installation that by air exhaust passage, the gas stream of pollution of high concentration is discharged to hole
Outward, thus ensure that safe space is the most contaminated, its interior operation can synchronize to carry out, and pollutes sky
Between dirt discharge thoroughly, quickly, working face cooling is obvious, provides good work for subsequent handling
Environment and working condition.
Further, it is possible in the case of opening movable part, cooling and the reality to a small amount of dirt are completed
Time discharge；And the distance arranged not only ensure that the safety of air door, and meets ventilation volume air blast
Job requirement, it is ensured that working effect, it is possible to elapse work surface and discharge fume operation the most continuously
Operation.
Accompanying drawing explanation
Fig. 1 is the structure front view of device described in present example.
Fig. 2 is the structural side view of Fig. 1.
Fig. 3 is the structure front view of gantry support described in present example.
Fig. 4 is the structural side view of Fig. 3.
Fig. 5 is quick ventilation smoke exhaust fundamental diagram after blasting procedure described in the embodiment of the present invention.
Fig. 6 is A-A profile in Fig. 5.
Fig. 7 is other operation construction period ventilation smoke exhaust fundamental diagram in the embodiment of the present invention.
Fig. 8 is B-B profile in Fig. 7.
Fig. 9 is view during quick ventilation and exhaust device transfer in the embodiment of the present invention.
Figure 10 is C-C profile in Fig. 9.
In figure: 1 is gantry support；2 is movable air door；3 is jet blower；4 is propeller fan；
5 is fixed throttle；6 is hydraulic cylinder；7 is hydraulic control system；8,9,10 is control activity respectively
Motor this locality switch board of air door, jet blower and propeller fan；11 is motor long-distance control cabinet；
12 is H type I-steel；13 is bracing piece；14 is connecting plate；15 is gripper shoe；16 is flexible wind
Cylinder；17 is protection network.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, described in be explanation of the invention and
It not to limit.
One distance tunnel construction phase quick ventilation and exhaust device of the present invention, as depicted in figs. 1 and 2,
It includes gantry support 1, the ventilation unit being arranged on gantry support 1 and air door group, and controls respectively
Ventilation unit processed and the electric machine control system of air door group；As shown in Figure 3 and Figure 4, this preferred embodiment is adopted
Illustrate as a example by welding the support platform of gantry support 1 and support post with H type I-steel 12, its
Middle utilize channel-section steel to make bracing piece 13 gantry support 1 to do the bearing diagonal strengthened, forms gusseted knot
Structure；Arrange the 14 pairs of gantry of winning in succession using double flute steel to make to prop up in the bottom of gantry support 1 support post
Frame 1 plays the effect that auxiliary supports, and the gripper shoe 15 using steel plate to make is welded on gantry support 1
Support platform upper surface；Ventilation unit includes being arranged on the propeller fan 4 in the middle part of gripper shoe 15 and right
Claim the jet blower 3 being arranged on propeller fan 4 both sides；Air door group includes being arranged on gantry support 1
The fixed throttle 5 of end and the movable air door 2 being arranged on gantry support 1 side.
Wherein, as depicted in figs. 1 and 2, electric machine control system include motor this locality switch board 8,9,
10, and motor long-distance control cabinet 11 two parts, for control movable air door 2 corresponding respectively, penetrate
Flow fan 3 and propeller fan 4；Motor this locality switch board 8,9,10 is arranged on gantry support 1 time
Side, portion, is respectively used to control movable air door 2, jet blower 3 and propeller fan 4；Motor is long-range
Switch board 11 is arranged on the home beyond blast area, and general and scope of operation distance is more than 200m.Its
In, propeller fan 4 be respectively welded with the air inlet of jet blower 3 be provided with together with reinforcing bar protection network；
The power of motor of propeller fan 4 is not less than 30Kw, uses conversion system to start；Jet blower 3 He
The power of motor of movable air door 2 is not more than 30Kw, and employing directly initiates mode and starts.
In the present invention, as shown in figures 1 and 3, hydraulic cylinder 6 it is respectively provided with four of gantry support 1
Support post bottom, for controlling the lifting of gantry support 1 column；On gantry support 1, hydraulic pressure is installed
Control system 7, for controlling the linkage between each hydraulic cylinder 6 or separate operaton, it is possible to meet gantry and prop up
Frame 1 synchronization lifting or carry out the needs of angle adjustment.In this preferred embodiment, use hydraulic jack conduct
Hydraulic cylinder 6 is arranged on gantry support 1 column distance ground 0.6m and highly locates, and its rated load weight is
8～10t, stroke is not less than 1.0m.
In this preferred embodiment, fixed throttle 5 uses shaped steel and sheet metal to be welded, and it is arranged on axial flow
Between ventilation blower 4 and jet blower 3, and between gripper shoe 15 and top, hole.Movable air door 2 uses
Electric steel-coil gate or multilamellar canvas air curtain, it is arranged on outside gantry support 1 and ventilates near axial flow
The side of machine 4 air outlet；When using electric steel-coil gate as movable air door 2, it is additionally provided with and it
The steel chute of coupling, for the lifting of electric steel-coil gate.
Concrete, as depicted in figs. 1 and 2, the present invention includes gantry support 1, movable air door 2,1～2
Platform jet blower 3, propeller fan 4, fixed throttle 5.Large power shaft flow blow 4 is arranged on
The center upper portion of gantry support 1, and make ventilation smoke exhaust direction towards outside hole, by 1～2 jet blower 3
It is arranged on the both sides of the upper axis flow blow 4 of gantry support 1, and makes the air supply direction of jet blower 3
Towards the scope of operation, during installation, the axis of large power shaft flow blow 4 and jet blower 3 all should be with tunnel axle
Line is parallel；Fixed throttle 5 uses channel-section steel to form with Plate Welding, and is weldingly fixed on gantry support 1
Between top and propeller fan 4, jet blower 3, movable air door 2 uses and customizes from specialized factory
The electric steel-coil gate of thickening, be arranged on propeller fan 4 air outlet side, be positioned in whole device
Bottom, and join steel chute for shutter door lifting.Gantry support 1 of the present invention uses height H type
I-steel 12, channel-section steel, double flute steel, Plate Welding form, at four support posts of gantry support 1
Bottom, has installed 1 rated load weight 8～10t, the stroke hydraulic jack more than 1.0m respectively, with
Realize the lifting of gantry support 1.
The operation principle of the present invention is divided into two kinds of situations: the first situation, as shown in Figure 5 and Figure 6, when
After long tunnel scope of operation blasting procedure terminates, substantial amounts of explosion poisonous and harmful gas will be assembled near the scope of operation
Body and flue dust, now, in shotfiring safety region, first pass through motor long-distance control cabinet 11 and motor basis
Ground switch board 8, the movable air door 2 on rapid Descent apparatus, as far as possible by toxic and harmful and flue dust
Intercept in the space between device and the scope of operation, then by motor long-distance control cabinet 11 and motor the machine
Switch board 9, the jet blower 3 in starter, make toxic and harmful and flue dust flow to rapidly device
Near, finally by the big merit on motor long-distance control cabinet 11 and motor this locality switch board 10 starter
The propeller fan 4 of rate, through the flexible air duct 16 of major diameter rapidly by device near poisonous and harmful gas
Body and flue dust pump drainage are to outside hole, thus reach quick ventilation smoke exhaust purpose；The second situation, such as Fig. 7 and
Shown in Fig. 8, after quick ventilation smoke exhaust has worked, the movable air door 2 on device is risen, makes to execute
Construction equipment, personnel pass through below device, are engaged in the construction of other operation, other operation construction period, penetrate
Flow fan 3 and powerful propeller fan 4 keep duty, on the one hand provide at a high speed to the scope of operation
Fresh distinguished and admirable, reduce ground temperature, improve working environment, the dirty wind row that on the other hand will produce in work progress
Outside hole.
Wherein, the powerful propeller fan 4 of reasonable selection sets to hole separate ventilation smoke evacuation as on device
Standby, it is fixed on the upper end of gantry support 1 by bolt, direction of discharging fume when propeller fan 4 is installed
Outside hole.It is close to propeller fan 4 air inlet and is welded with the protection network that one employing bar-mat reinforcement is made
17, constitute double protection with the protection network of propeller fan 4 self, indivedual little slungshots during to avoid explosion
Pound damage air inlet；Air outlet is firmly connected with supporting flexible air duct 16, and flexible air duct 16 hangs along top, hole
Hang straight and extend to outside hole, discharging fume to hole separate ventilation.Air duct is adopted when the corner that corner is bigger
Using rigidity air duct, in this preferred embodiment, employing angle steel and Plate Welding make.
The air outlet of jet blower 3 is welded the protection network 17 using bar-mat reinforcement to make together, with jet
Blower fan self-protection net constitutes double protection.During work, jet blower 3 injects the fresh wind of high speed to the scope of operation
Stream, the fresh distinguished and admirable one side of high speed serves dilution scope of operation blasting fume or dirty wind, reduces scope of operation temperature
Effect, on the other hand accelerates blasting fume or dirty distinguished and admirable to powerful propeller fan 4, beneficially axial flow
Ventilation blower 4 is quickly by outside its pump drainage to hole.
When carrying out the selection of movable air door 2, it is vertical wall for tunnel section abutment wall, such as gateway opening
Shape, rectangle and square, use electric steel-coil gate as movable air door 2, and meet according to below device
Height that equipment is current and width dimensions, select or customize electric steel-coil gate model；For tunnel section
For the section of other form, use multilamellar canvas air curtain as movable air door 2.Movable air door 2 is only quick-fried
Close during needing quick ventilation smoke exhaust after Po, namely fall, and other operation construction period opens, also
Being exactly to rise, to meet construction equipment, personnel pass through needs.
Present invention moving method in actual applications, as shown in Figure 9 and Figure 10, moves at device
Before, first big diameter blouing tube 16 is taken apart from the air outlet of propeller fan 4, is hung on tunnel top,
The external circuit of motor this locality switch board 8,9,10 is disconnected；The support being made up of shaped steel is placed on
In 15～20t Wagons of lorries, truck is started the underface to ventilation and exhaust device, passes through
Manipulation hydraulic control system 7, shrinks the hydraulic cylinder 6 on ventilation and exhaust device, makes ventilation and exhaust device drop
Fall on type support, and ensure that the support post distance from bottom ground of device is not less than 25cm, to ventilation
After smoke extractor is made suitably to reinforce, the most at the uniform velocity start truck, make ventilation and exhaust device to the scope of operation
Direction is moved to new position, then by manipulation hydraulic control system 7, jacking hydraulic cylinder 6, makes ventilation
Cigarette device lifting is in place, outputs truck, extend and firmly connect the flexible air duct 16 of major diameter with
And the external circuit of motor this locality switch board 8,9,10, ventilation can be proceeded in a new location
Cigarette works.
Claims (10)
1. a distance tunnel construction phase quick ventilation and exhaust device, it is characterised in that include that gantry is propped up
Frame (1), is separately positioned on fixed throttle (5) and the movable wind of its side of gantry support (1) upper end
Door (2), is arranged on the propeller fan of the upper end of gantry support (1) through fixed throttle (5)
And jet blower (3), and movable air door (2), propeller fan (4) and jet blower (4)
(3) electric machine control system；Fixed throttle (5) with launch after movable air door (2) match use
The most distinguished and the most admirable in cut off in tunnel；The air intake vent of propeller fan (4) and going out of jet blower (3)
Air port is arranged on the fixed throttle (5) side near the scope of operation, and the air outlet of propeller fan (4) is even
Connecing flexible air duct (16), the air outlet of flexible air duct (16) extends to outside tunnel.
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 1, its
Being characterised by, gantry support (1) includes support platform and support post, and support platform is framework knot
Structure, lower end is at least symmetrical arranged four support posts, and upper end is coated with the gripper shoe being fixedly installed
(15)；Between the support post that the same sidewall of adjacent tunnel is arranged and inside the frame structure of support platform
Triangular support configurations is formed by bracing piece (13)；At the bottom of the support post that the same sidewall of adjacent tunnel is arranged
End is fixed on the connecting plate (14) be arrangeding in parallel with canal axes jointly.
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 2, its
It is characterised by, supports the hydraulic cylinder being respectively arranged to altitude mixture control on pillar, support post and connecting plate
(14) cylinder body and the piston rod of hydraulic cylinder (6) are connected respectively；The hydraulic control system (7) of hydraulic cylinder
It is arranged on gantry support (1), is used for controlling the linkage operation of each hydraulic cylinder (6) or individually making
Industry.
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 1, its
Being characterised by, electric machine control system includes the motor this locality switch board being arranged on gantry support (1)
(8,9,10), and it is arranged on the motor long-distance control cabinet (11) of home beyond blast area；Electricity
Machine this locality switch board (8,9,10) and motor long-distance control cabinet (11) are logical by wirelessly or non-wirelessly connecting
News.
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 1, its
Being characterised by, movable air door (2) is arranged on the side of propeller fan (4) air outlet, uses multilamellar
Flexible air curtain or be provided with the shutter door of chute.
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 1, its
Being characterised by, propeller fan (4) is arranged on gantry support (1) upper center, jet blower
(3) both sides of propeller fan (4) it are symmetricly set on；The air intake vent of propeller fan (4) and penetrating
The air outlet of flow fan (3) is respectively arranged with protection network (17).
A kind of distance tunnel construction phase quick ventilation and exhaust device the most according to claim 1, its
Being characterised by, flexible air duct (16) is arranged along the hanging of tunnel top, and it is corner turning round more than 15 degree
Time arrange rigidity air duct transition connect.
8. a distance tunnel construction phase quick ventilation smoke exhaust method, it is characterised in that use such as right
Require the distance tunnel construction phase quick ventilation and exhaust device described in 1, partition is set in tunnel axially
Distinguished and admirable air door, forms the pollution space of closing, at air door to tunnel portal between work surface and air door
Form safe space；Then the ventilation installation of air door it is utilized through by the pollutant that pollute in space with air-flow
Being pumped to outside hole by the air exhaust passage closed, the blast apparatus being simultaneously utilized through air door is empty by safety
Between to polluting air blast in space, make pollutant add the entrance of flow speed and direction ventilation installation.
A kind of distance tunnel construction phase quick ventilation smoke exhaust method the most according to claim 8, its
Being characterised by, described air door includes superposed standing part and lower removable part, in non-explosion
The construction period of operation, it is possible to open movable air door, keep the ventilation installation through standing part and air blast
The normal operation of equipment, for working face cooling and carry out blowdown operation in real time.
A kind of distance tunnel construction phase quick ventilation smoke exhaust method the most according to claim 8,
It is characterized in that, the position that described air door is arranged is more than or equal to 50 meters from the distance of work surface, and
Ventilation critical distance and the air blast critical distance of blast apparatus less than ventilation installation.
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| CN109282634B (en) * | 2018-10-18 | 2023-07-21 | 楚天科技股份有限公司 | Air door sling isolating device of tunnel oven |
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