CN204716278U - The fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization - Google Patents

The fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization Download PDF

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CN204716278U
CN204716278U CN201520423432.3U CN201520423432U CN204716278U CN 204716278 U CN204716278 U CN 204716278U CN 201520423432 U CN201520423432 U CN 201520423432U CN 204716278 U CN204716278 U CN 204716278U
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atomization
fan
pore
long drive
water
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任凤香
袁保杰
袁芳
袁星
袁岗
张立
李进兵
樊晓晶
王剑锋
赵祥
董效军
卲健
杜从宾
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Abstract

The utility model relates to smoke abatement and dust control field, tunnel, be specially the fan-shaped long drive dust smoke and extraction system of a kind of tunnel drilling and blasting composite atomization, solution existing tunnel bores the existence of quick-fried operation smoke reducing dust lowering and has high input, energy consumption is high, the problems such as dust-laying effect is not good, comprise portable smoke abatement and dust control main frame and fixed smoke abatement and dust control extension set, the fan-shaped long drive device of large discharge composite atomization is provided with in portable smoke abatement and dust control main frame, the fan-shaped long drive device of main frame low discharge composite atomization and main frame air water regulation and control conveying device, also comprise the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization regulating and controlling conveying device with main frame air water and be connected, fixed extensions comprises extension set air water regulation and control conveying device and the fan-shaped long drive device of suspension type extension set low discharge composite atomization, system works incoming tunnel construction pneumatics air delivering pipeline and supply channel, native system eliminates flue dust from the whole space in pollution source and tunnel, energy-conserving action is remarkable, improve work efficiency and working security, lightweight is little, flexibly simple to operate, security of operation is stablized.

Description

The fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization
Technical field
The present invention relates to smoke abatement and dust control field, tunnel, be specially the fan-shaped long drive dust smoke and extraction system of a kind of tunnel drilling and blasting composite atomization.
Background technology
At present, mountain tunnel excavation adopts drilling and blasting method usually, and from the development trend of tunnel construction technology, drilling and blasting method remains the most frequently used excavation method in one quite long from now on period.This method can produce a large amount of dust and toxic and harmful in the operation process such as explosion, muck removal, spray anchor, dust pollution is to constructing tunnel operation and administrative staff are healthy causes serious harm, and especially long-term suction can cause containing finite concentration free silicon dioxide dust the systemic disease-pneumoconiosis filling the air fibrous lesions based on lung tissue.
According to the report display that the Ministry of Public Health announces in April, 2011, occupational disease 27240 example is newly sent out in 2010 in China 30 provinces and regions, and wherein pneumoconiosis 23812 example, accounts for 87.42%.By the end of the year 2010, the existing Pneumoconiosis Patients of China will reach 527431 examples, and the incidence of disease of pneumoconiosis occupies first of occupational disease.According to the anthraco-silicosis investigation data display that certain railway construction enterprises head office system causes for constructing tunnel, between years 7 years nineteen ninety to 1996, anthraco-silicosis adds up dead 491 people, dead 70 people (10-15 years Silicosis Patients decreased average life-spans every year on average, belong to unusual death), numeral is apparently higher than death in line of duty accident number.Between the more than ten years before 2008, the said firm's system Silicosis Patients and doubtful silicosis patient are in fact more than ten thousand people.More than Corporation system occupational disease (mainly anthraco-silicosis) number of the infected, not only bring millstone around one's neck and huge economic loss to enterprise, and cause great misery to Silicosis Patients and family.With regard to current medical science level, pneumoconiosis is also a kind of " incurable disease " of preventing to can not be cured only.
Eliminate constructing tunnel flue dust, the operating environment of constructing tunnel operation and administrative staff is improved, away from pneumoconiosis, not only will be conducive to occupational health, reduce the incidence of disease of occupational disease, embody the theory that people-oriented, be also conducive to the quality and safety of construction work, be more conducive to social progress and social harmony.
At present in the selection of major long tunnel work constructure scheme, drilling and blasting method is subject to the challenge of shield method, its main cause is that in tunnel, the pollution control such as dust does not reach construction requirement, specifically, is because present tunnel forced ventilation measure receives the restriction of distance.Carry out tunnel smoke reducing dust lowering and will greatly improve the range of application of this method for tunnel construction of drilling and blasting method, also thus greatly reduce major long tunnel construction cost.
Present tunnel drilling and blasting operation smoke reducing dust lowering mainly adopts forced ventilation measure, and its principle is, arranges high-power pressure fan, by air funnel, fresh air is sent to face outside hole, dust, toxic and harmful in hole is discharged outside hole.The shortcoming of this measure is, flue dust to be discharged outside hole a large amount of in process can filling the air for a long time and pollute whole tunnel by respirable dust, makes to construct and supervisory engineering staff are all endangered in the tunnel in.Along with the increase of tunnelling footage, air output and air-supply time also will constantly increase and extend, and air-supply difficulty also strengthens thereupon, but soot emissions effect constantly reduces.Ancillary method has hydraulic pressure demolition, face to sprinkle water, dress quarrel point spray sprinkler, grit arrestor dedusting, water smoke heavy curtain depositing dust etc., these measures all can reduce smoke content in hole to a certain extent, but owing to there are some problems in practical operation in these measures, so, seldom see at tunnel construction site.
The common shortcoming of above-mentioned measure is exactly passivity dedusting, similarly is etc. to throw out it again after " killer bee " flies away from nest, slaughter it, and the scope that pollutes is large, and the duration is long, and dust falling device has high input, energy consumption is high, poor effect, gets half the result with twice the effort.
Summary of the invention
The present invention bores the above-mentioned many problems such as measure existence has high input, energy consumption is high, dust-laying effect is not good of quick-fried operation employing to solve existing tunnel, provides a kind of tunnel drilling and blasting composite atomization fan-shaped long drive dust smoke and extraction system.
The present invention adopts following technical scheme to realize: the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization, comprise the portable smoke abatement and dust control main frame in the tunnel piercing face of acting on, its structure comprises Mobile enclosed casing, Mobile enclosed box house forward lower part interval is installed by some large discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of large discharge composite atomization that Mobile enclosed casing forms outward, in Mobile enclosed box house, main frame air water regulation and control conveying device and main frame distribution control box are installed in rear, the gas of main frame air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output respectively with large discharge composite atomization fan-shaped long drive device gas, water input connects.
In order to optimize the structure of this dust smoke and extraction system further, improve its function, the present invention has also carried out following improvement:
Preferably, the fan-shaped long drive device of large discharge composite atomization is inclined upwardly by the support be fixed in Mobile enclosed casing and installs, fan-shaped angle between the elevation angle of each large discharge composite atomization long drive device and adjacent large discharge composite atomization long drive device can need setting according to injection, the structure of large discharge composite atomization long drive device comprises at least by one-level atomization part I, secondary atomization part I is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable large shower nozzle assembled of part by joint and afterbody, Mobile enclosed casing is stretched out in large shower nozzle front end, wherein one-level atomization part I one end is provided with one-level water inlet I and one-level water inlet pore I simultaneously, one-level air inlet port I and one-level air inlet pipe hole I, the other end is provided with pore I of simultaneously intaking with one-level, the one-level atomization cavity I that one-level air inlet pipe hole I is communicated with, one-level water inlet pore I and one-level air inlet pipe hole I are single channel pore or multi-channel tube pore structure, secondary atomization part I one end is provided with secondary atomised spray import I and secondary atomised spray pore I simultaneously, secondary inlet mouth I and secondary inlet pore I, with secondary atomised spray pore I while that the other end being provided with, the secondary atomization cavity I that secondary inlet pore I is communicated with, wherein the one-level atomization cavity I of one-level atomization part I assembles with secondary atomised spray import I activity that secondary is atomized part I, secondary atomization cavity I is communicated with large shower nozzle I and activity is assembled, secondary atomised spray pore I and secondary inlet pore I are single channel pore or multi-channel tube pore structure, the water output that one-level water inlet I and main frame air water regulate and control conveying device is connected, one-level air inlet port I, the gas output that secondary inlet mouth I and main frame air water regulate and control conveying device is connected.
Preferably, interval, Mobile enclosed box house front upper place is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of main frame low discharge composite atomization that Mobile enclosed casing forms outward, main frame low discharge composite atomization fan-shaped long drive device is positioned at above the fan-shaped long drive device of large discharge composite atomization; Be provided with support supporting plate below the fan-shaped long drive device of main frame low discharge composite atomization, supporting bracket front edge of board and Mobile enclosed casing hinged, rear end is with to be arranged on the elevation regulator lower end of Mobile enclosed box house hinged; The gas of the fan-shaped long drive device of main frame low discharge composite atomization, water input and main frame air water regulate and control the gas of conveying device, water output is connected.
Preferably, this dust smoke and extraction system also comprises the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization regulating and controlling conveying device with main frame air water and be connected, its structure comprises the movable stand that is provided with road wheel and is located at the external casing above movable stand by rod rest, in external casing, interval is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of external low discharge composite atomization that casing forms outward, movable stand is provided with side by side the high pressure flexible water hose folding and unfolding dish and high pressure air hose folding and unfolding dish that are wound with high pressure water transport pipe and high pressure gas pipeline respectively, the water output that input and the main frame air water of high pressure flexible water hose regulate and control conveying device is connected, output is connected with the water input of the fan-shaped long drive device of external low discharge composite atomization, the gas output that input and the main frame air water of high pressure air hose regulate and control conveying device is connected, output is connected with the gas input of the fan-shaped long drive device of external low discharge composite atomization, movable stand lower front portion is provided with leg, pole upper end and external casing hinged, and be provided with elevation angle adjusting lever.
Preferably, this dust smoke and extraction system also comprises along becoming the spaced apart fixed smoke abatement and dust control extension set of hole tunnel, structure comprises the extension set air water regulation and control conveying device be fixed on two mat walls and the suspension bracket be fixed on tunnel vault, suspension casing is provided with below suspension bracket, hang interval in casing to install by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of extension set low discharge composite atomization that casing forms outward, the gas of extension set air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output respectively with the gas of the fan-shaped long drive device of extension set low discharge composite atomization, water input connects, hang casing spout side and noise damper is installed.
Preferably, the fan-shaped long drive device of main frame low discharge composite atomization, the fan-shaped long drive device of external low discharge composite atomization, low discharge composite atomization long drive device structure in the fan-shaped long drive device of extension set low discharge composite atomization includes and is at least atomized part II by one-level, secondary atomization part II is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable little shower nozzle assembled of part by joint and afterbody, casing is stretched out in little shower nozzle front end, wherein one-level atomization part II one end is provided with one-level water inlet II and one-level water inlet pore II simultaneously, one-level air inlet port II and one-level air inlet pipe hole II, the other end is provided with pore II of simultaneously intaking with one-level, the one-level atomization cavity II that one-level air inlet pipe hole II is communicated with, one-level water inlet pore II and one-level air inlet pipe hole II are single channel pore or multi-channel tube pore structure, secondary atomization part II one end is provided with secondary atomised spray import II and secondary atomised spray pore II simultaneously, secondary inlet mouth II and secondary inlet pore II, with secondary atomised spray pore II while that the other end being provided with, the secondary atomization cavity II that secondary inlet pore II is communicated with, wherein the one-level atomization cavity II of one-level atomization part II assembles with secondary atomised spray import II activity that secondary is atomized part II, secondary atomization cavity II is communicated with little shower nozzle and activity is assembled, secondary atomised spray pore II and secondary inlet pore II are single channel pore or multi-channel tube pore structure, the water output that one-level water inlet II and air water regulate and control conveying device is connected, one-level air inlet port II, the gas output that secondary inlet mouth II and air water regulate and control conveying device is connected.
Preferably, main frame air water regulation and control conveying device comprises the air inlet main line be connected with pneumatics air delivering pipeline, the air inlet be communicated with air inlet main line time pipeline, external air delivering pipeline, and the water inlet main line to be connected with supply channel, the water inlet time pipeline be communicated with water inlet main line, external hydraulic pipeline, wherein water inlet main line is installed main pump and main pump pressure regulation covering circulation line, main pump pressure regulation covering circulation line installs main pump outlet water pressure gauge and main pump pressure regulator valve, main pump outlet pipeline is connected with large water knockout drum and little water knockout drum simultaneously, large water knockout drum is communicated with the one-level water inlet I of each large discharge composite atomization long drive device respectively by high-pressure hose, water inlet time pipeline is installed auxiliary pump and auxiliary pump supercharging covering circulation line, auxiliary pump supercharging covering circulation line installs auxiliary pump discharge water pressure gauge and auxiliary pump pressure regulator valve, auxiliary pump discharge pipeline is connected with little water knockout drum and external hydraulic pipeline, little water knockout drum is connected with the one-level water inlet II of each low discharge composite atomization long drive device respectively by high-pressure hose, the outlet of air inlet main line is connected with large steam separator, large steam separator is connected by the one-level air inlet port I of high-pressure hose and each large discharge composite atomization long drive device, secondary inlet mouth I, air inlet time tube outlet is connected with little steam separator and external air delivering pipeline, and little steam separator is connected by the one-level air inlet port II of high-pressure hose and each low discharge composite atomization long drive device, secondary inlet mouth II, air inlet main line, air inlet time pipeline, external air delivering pipeline, main pump outlet pipeline, auxiliary pump discharge pipeline and external hydraulic pipeline install motor operated valve respectively.
Preferably, the intake ratio of pore I cross-sectional area of one-level atomization one-level air inlet pipe hole I cross-sectional area of part I of large discharge composite atomization long drive device and one-level is 1 ~ 4:1, and one-level air inlet pipe hole I and the one-level ratio that the cross-sectional area sum of pore I and secondary be atomized secondary atomised spray pore I cross-sectional area of part I of intaking is 1.0 ~ 1.1:1; Secondary inlet pore I cross-sectional area of secondary atomization part I is 1 ~ 3:1 with secondary atomised spray pore I cross-sectional area ratio, and secondary inlet pore I cross-sectional area and secondary atomised spray pore I cross-sectional area sum equal large shower nozzle pore cross-sectional area.
Preferably, the intake ratio of pore II cross-sectional area of one-level atomization one-level air inlet pipe hole II cross-sectional area of part II of low discharge composite atomization long drive device and secondary is 1 ~ 4:1, and one-level air inlet pipe hole II and the one-level ratio that the cross-sectional area sum of pore II and secondary be atomized secondary atomised spray pore II cross-sectional area of part II of intaking is 1.0 ~ 1.1:1; Secondary inlet pore II cross-sectional area of secondary atomization part II is 1 ~ 3:1 with secondary atomised spray pore II cross-sectional area ratio, and secondary inlet pore II cross-sectional area and secondary atomised spray pore II cross-sectional area sum equal little shower nozzle pore cross-sectional area.
Preferably, the curved shape of Mobile enclosed casing front upper, rear upper is provided with beam positioner, the power supply indicator HL be connected on main frame distribution control box interior circuit board, main pump indicator lamp HL1, little pump indicator lamp HL2, start button SB2, stop button SB1, universal seclector SA and double control switch K1, double control switch K2 is provided with above main frame distribution control box panel, main pump outlet water pressure gauge and main pump pressure regulator valve, auxiliary pump discharge water pressure gauge and auxiliary pump pressure regulator valve are arranged on main frame distribution control box panel side.
Adopt structure design of the present invention, this dust smoke and extraction system comprises the portable smoke abatement and dust control main frame in the tunnel piercing face of being laid in, main frame external mobile formula low discharge composite atomization fan-shaped long drive device and edge become the spaced apart fixed smoke abatement and dust control extension set of hole tunnel, in portable smoke abatement and dust control main frame, large discharge composite atomization fan-shaped long drive device and the fan-shaped long drive device of low discharge composite atomization are installed, dust smoke and extraction system work incoming tunnel construction three phase mains, pneumatics air delivering pipeline, supply channel, important innovations of the present invention is a kind of large discharge composite atomization long drive device, and by many fan-shaped long drive devices of large discharge composite atomization long drive device composition large discharge composite atomization, a kind of low discharge composite atomization long drive device, and by many fan-shaped long drive devices of low discharge composite atomization long drive device composition low discharge composite atomization, it connects air water regulation and control conveying device, this device be provided with main pump and main pump supercharging covering circulation line and auxiliary pump and auxiliary pump supercharging covering circulation line, the gas of certain pressure and flow and water are flowed to the fan-shaped long drive device of composite atomization, penetrate after its composite atomization, penetrate mist and there is convergence, it is fine and closely woven that water smoke drips grain, and fan-shaped water smoke area coverage is large, far firing range.Portable smoke abatement and dust control main frame is in the environment of tunnel digging time zone, gas, hydraulic pressure all regulates and controls when 0.7Mpa, fan-shaped water smoke range adds disperse distance can reach 50m ~ 60m, when being placed on the centre position, tunnel apart from face 50m ~ 60m, the fan-shaped water smoke ejected can be covered to whole spaces of face from vault bottom, open quick-fried front half a minute remote-controlled start-up, continue intensive water smoke and will cover the stone shielding explosion and kick up instantaneously, dust and smog, dust and water smoke drip grain and to collide adhesion and accelerate it and fall, smog is also filtered dilution by water smoke simultaneously, after explosion, 3 ~ 5min shuts down, Blasting dust is eliminated, main frame external mobile formula low discharge composite atomization fan-shaped long drive device and the fan-shaped long drive device of main frame low discharge composite atomization are enabled in the operation of spray anchor, penetrate mist and can form the long stereo dust-cleaning region of front and back twice 25m ~ 30m, effectively fall except the dust in the cyclone of spray anchor operation area and the dust to the disperse of tunnel portal direction, enable portable main frame low discharge composite atomization fan-shaped long drive device equally at dress slag area or enable the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization simultaneously during muck removal, adopt the smoke abatement and dust control of water smoke shielding coverage mode, fixed smoke abatement and dust control extension set installs one every 100m ~ 200m on the way at one-tenth hole tunnel, extension set air water regulation and control conveying device is fixed on two mat walls, the fan-shaped long drive device of extension set low discharge composite atomization is fixed on tunnel vault, every part machine penetrates to entrance orientations the three-dimensional smoke abatement and dust control district that mist forms 30m ~ 40m, and there is automatic cycle clock switch machine function, effectively eliminate tunnel flue dust on the way.
In tunnel drilling and blasting operation process, flue dust mainly produces the innermost end in tunnel, work plane is the source that flue dust produces, so, how to carry out effective smoke abatement and dust control in the constructing tunnel scope of operation is crux, meanwhile, the tunnel flue dust that motor vehicles and machines produce on the way is also a primary pollution source, how to eliminate from source starting point and the final purpose that these two primary pollution sources are native system creativity and innovations.
Employing said structure designs, the dust that the smog dust that tunnel drilling and blasting can produce by the present invention, spray anchor and mucking out produce is eliminated from source, and can suppress to remove into hole tunnel flue dust on the way with falling, can not only " killer bee " be closed down in nest, and " they " can be eliminated awing, more effectively improve constructing tunnel operating environment, with make up at present the above-mentioned shortcoming of employing measure, compared with prior art, the present invention has the following advantages:
1, flue dust is eliminated from the whole space in pollution source and tunnel
Portable smoke abatement and dust control main frame, when gas, hydraulic pressure 0.7Mpa, water smoke range adds disperse distance and reaches 50m ~ 60m, when being placed on the centre position, tunnel apart from face 50m ~ 60m, the fan-shaped water smoke ejected can cover the whole spaces of vault bottom to face, open quick-fried front half a minute remote-controlled start-up, after explosion, 3 ~ 5min shuts down, and Blasting dust is eliminated; Main frame external mobile formula low discharge composite atomization fan-shaped long drive device and the fan-shaped long drive device of main frame low discharge composite atomization are enabled in the operation of spray anchor, penetrate mist and can form the long stereo dust-cleaning district of front and back twice 25m ~ 30m, effectively fall except the dust in the cyclone of spray anchor operation area and the dust to the disperse of tunnel portal direction; The operation of dress quarrel is enabled portable main frame low discharge composite atomization fan-shaped long drive device equally or is enabled the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization simultaneously, adopts the smoke abatement and dust control of water smoke shielding coverage mode; Fixed smoke abatement and dust control extension set installs one every 100m ~ 200m on the way at one-tenth hole tunnel, extension set air water regulation and control conveying box is fixed on two mat walls, the fan-shaped long drive device of extension set low discharge composite atomization is fixed on tunnel vault, the three-dimensional smoke abatement and dust control district that mist forms 30m ~ 40m is penetrated to entrance orientations, and by the control of extension set air water regulation and control conveying device, there is automatic cycle clock switch machine function, effectively eliminate tunnel flue dust on the way;
2, significant energy-conserving action
Portable smoke abatement and dust control main frame acts on work zone dedusting, tunnel flue dust on the way eliminated by fixed smoke abatement and dust control extension set, all eliminate smog dust from pollution source, avoid dust, poisonous and harmful flue gas fills the air diffusion, thus alleviate the intensity that smoke abatement falls in ventilation, tunnel ventilation measure be transformed to and be mainly used in oxygen supply aspect in tunnel, ventilation can greatly reduce, and significantly declines than former ventilation depositing dust energy consumption;
3, native system is energy-conservation
Native system main frame and extension set are low-power machine, and Blasting dust is eliminated and enabled the fan-shaped long drive device of mobile high-flow composite atomization, and a work cycle is only started shooting 1 time, used time 3 ~ 5min; Fixed smoke abatement and dust control extension set is batch (-type) start, and energy consumption is low, is more suitable for working long hours;
4, improve effect, explosion spraying smoke abatement and dust control 3 ~ 5 min constructor can enter hole operation, with need after explosion in the past ventilation 30 min operating personnel just can march into the arena compared with each circulation shortening 20 more than min;
5, improve working security, in tunnel, visibility improves, and effectively reduces security incident and occurs;
6, improve mechanical efficiency, reduce maintenance cost.Because dustiness in air reduces, mechanical wear degree reduces, and mechanical efficiency improves, and maintenance cost reduces;
7, machinery that watering and lowering dust needs and artificial is saved.Tunnel is fixed extension set self-timing water spray stereo dust-cleaning on the way, not only dedusting but also dust-proof, saves the input of watering vehicle and manpower;
8, system bulk is little, simple to operate flexibly, safety is high.Main frame is provided with battery-operated moving device, and each circulation is only each before and after explosion to be operated once, and an electrician can part-time management.Composite atomization long drive device occurs without clogging, can in tunnel construction environment long-time stable trouble free service, and can transition continue use.
Accompanying drawing explanation
Fig. 1 is application scenarios figure of the present invention;
Fig. 2 is the side sectional view of Fig. 1;
Fig. 3 is portable smoke abatement and dust control main frame side sectional view of the present invention;
Fig. 4 is portable smoke abatement and dust control main frame front view of the present invention;
Fig. 5 is portable smoke abatement and dust control main frame rear elevation of the present invention;
Fig. 6 is portable smoke abatement and dust control main frame front elevation drawing of the present invention;
Fig. 7 is the front view of the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization of the present invention;
Fig. 8 is the lateral view of Fig. 7;
Fig. 9 is the top view of Fig. 7;
Figure 10 is the connection diagram that the fan-shaped long drive device of large discharge composite atomization of the present invention and air water regulate and control conveying device;
Figure 11 is the top view of Figure 10;
Figure 12 is the connection diagram that main frame low discharge composite atomization fan-shaped long drive device of the present invention or external low discharge composite atomization fan-shaped long drive device or the fan-shaped long drive device of extension set low discharge composite atomization and air water regulate and control conveying device;
Figure 13 is the top view of Figure 12;
Figure 14 is the suspension bracket of fixed smoke abatement and dust control extension set of the present invention and the structural representation hanging casing;
Figure 15 is the upward view of Figure 14;
Figure 16 is the structural representation of the extension set air water regulation and control conveying device of fixed smoke abatement and dust control extension set of the present invention;
Figure 17 is the connection diagram of main frame air water of the present invention regulation and control conveying device;
Figure 18 is the control principle drawing of main frame distribution control box of the present invention;
Figure 19 is the assembling schematic diagram of the fan-shaped long drive device of large discharge composite atomization of the present invention;
Figure 20 is the overall structure schematic diagram of the fan-shaped long drive device of large discharge composite atomization of the present invention
Figure 21 is the sectional view of Figure 20;
Figure 22 is the sectional view of one-level atomization part in Figure 20;
Figure 23 is the assembling schematic diagram of low discharge composite atomization long drive device of the present invention;
Figure 24 is the overall structure schematic diagram of low discharge composite atomization long drive device of the present invention;
Figure 25 is the sectional view of Figure 24;
Figure 26 is the sectional view of one-level atomization part in Figure 24;
Figure 27 is the extension set air water regulation and control conveying device external structure schematic diagram of fixed smoke abatement and dust control extension set of the present invention;
In figure: 1-pneumatics air delivering pipeline; 2-supply channel; The portable smoke abatement and dust control main frame of 3-; 4-Mobile enclosed casing; 5-main frame air water regulation and control conveying device, 5.1-air inlet main line, 5.2-air inlet time pipeline, the external air delivering pipeline of 5.3-; 5.4-is intake main line; 5.5-water inlet time pipeline; The external hydraulic pipeline of 5.6-; 5.7-main pump; 5.8-main pump pressure regulation covering circulation line, 5.9-main pump outlet water pressure gauge, 5.10-main pump pressure regulator valve, the large water knockout drum of 5.11-, the auxiliary pump of 5.12-, 5.13-auxiliary pump supercharging covering circulation line, the auxiliary pump discharge water pressure gauge of 5.14-, the auxiliary pump pressure regulator valve of 5.15-, the little water knockout drum of 5.16-, the large steam separator of 5.17-, 5.18-little steam separator, 5.19-motor operated valve, 5.20-water flowing high-pressure hose, 5.21-ventilates high-pressure hose; 6-main frame distribution control box; The fan-shaped long drive device of 7-large discharge composite atomization, 7.1-one-level atomization part I, 7.2-secondary atomization part I, the large shower nozzle of 7.3-, 7.4-one-level water inlet I, 7.5-one-level water inlet pore I, 7.6-one-level air inlet port I, 7.7-one-level air inlet pipe hole I, 7.8-one-level atomization cavity I, 7.9-secondary atomised spray import I, 7.10-secondary atomised spray pore I, 7.11-secondary inlet mouth I, 7.12-secondary inlet pore I, 7.13-secondary atomization cavity I; 8-support; The fan-shaped long drive device of 9-main frame low discharge composite atomization; 10-supports supporting plate; 11-elevation regulator; The fan-shaped long drive device of 12-external mobile formula low discharge composite atomization, 12.1-road wheel, 12.2-movable stand, 12.3-pole, the external casing of 12.4-, 12.5-high pressure water transport pipe, 12.6-high pressure gas pipeline, 12.7-high pressure flexible water hose folding and unfolding dish, 12.8-high pressure air hose folding and unfolding dish, the external water-supply-pipe of 12.9-, the external appendix of 12.10-, 12.11-leg, 12.12-elevation angle adjusting lever; The fixed smoke abatement and dust control extension set of 13-; 14-extension set air water regulation and control conveying device, 14.1-air inlet pipeline; 14.2-inlet pipeline, 14.3-pressure switch I; 14.4-booster pump; 14.5-booster pump pressure regulation covering circulation line; 14.6-booster pump outlet water pressure gauge; 14.7-booster pump pressure regulator valve, 14.8-electrically-controlled valve I, 14.9-electrically-controlled valve outlet high-pressure hose; 14.10-pressure switch II; 14.11-air gauge; 14.12-electrically-controlled valve II, 14.13-air delivering pipeline, 14.14-line breaker, 14.15-fuse, 14.16-cycle time relay, 14.17-power supply indicator, 14.18-relay indicating light, 14.19-divides machine box door; 15-suspension bracket; 16-hangs casing; 17-noise damper; 18-one-level atomization part II; 19-secondary atomization part II; The little shower nozzle of 20-; 21-one-level water inlet II; 22-one-level water inlet pore II; 23-one-level air inlet port II; 24-one-level air inlet pipe hole II; 25-one-level atomization cavity II; 26-secondary atomised spray import II; 27-secondary atomised spray pore II; 28-secondary inlet mouth II; 29-secondary inlet pore II; 30-secondary atomization cavity II; 31-beam positioner; 32-power supply indicator HL; 33-main pump indicator lamp HL1; 34-little pump indicator lamp HL2; 35-start button SB2; 36-stop button SB1; 37-universal seclector SA; 38-double control switch K1; 39-double control switch K2; 40-power line; 41-sealing ring; 42-handle; 43-universal wheel; 44-parking brake; The large locating hole of 45-; The little locating hole of 46-; 47-master control valve.
Detailed description of the invention
By reference to the accompanying drawings the specific embodiment of the present invention is described further.
The fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization, as Fig. 3, 4, shown in 5, comprise the portable smoke abatement and dust control main frame 3 in the tunnel piercing face of acting on, its structure comprises Mobile enclosed casing 4, Mobile enclosed box house forward lower part interval is installed by some large discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device 7 of large discharge composite atomization that Mobile enclosed casing forms outward, in Mobile enclosed box house, main frame air water regulation and control conveying device 5 and main frame distribution control box 6 are installed in rear, the gas of main frame air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output is the gas of fan-shaped long drive device with large discharge composite atomization respectively, water input connects.During concrete making, reserved large locating hole on Mobile enclosed casing front panel, locating hole is stretched out in the front end of long drive device, the fan-shaped angle sprayed and the elevation angle are according to tunnel excavation width and highly set, be placed in apart from face 50 ~ 60m midline position by main frame, to be ejected into both sides, the tunnel abutment wall width setting angle at 20 ~ 25m place, dead ahead, and the top vault center line height setting elevation angle, in Mobile enclosed box house, main frame air water regulation and control conveying device 5 and main frame distribution control box 6 are installed in rear, the input of main frame air water regulation and control conveying device accesses respectively as Fig. 1, shown in 2, lay along side, tunnel and the pneumatics air delivering pipeline 1 that forward extend synchronous with tunnel piercing and supply channel 2, power line 40, respectively master control valve 47 is installed at pneumatics air delivering pipeline 1 and supply channel 2, in order to realize dust smoke and extraction system air feed of the present invention, the master control of supplying water.The same with other car bodies, installed rows travelling wheel, universal wheel and parking brake below the Mobile enclosed casing of this portable smoke abatement and dust control main frame, Mobile enclosed casing upper back installs handle, is convenient to manual operation.
As Figure 19, 20, 21, shown in 22, the fan-shaped long drive device 7 of large discharge composite atomization is inclined upwardly by the support 8 be fixed in Mobile enclosed casing and installs, injection angle and the elevation angle can set, the structure of large discharge composite atomization long drive device comprises at least by one-level atomization part I 7.1, secondary atomization part I 7.2 is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable large shower nozzle 7.3 assembled of part by joint and afterbody, Mobile enclosed casing is stretched out in large shower nozzle front end, wherein one-level atomization part I one end is provided with one-level water inlet I 7.4 and one-level water inlet pore I 7.5 simultaneously, one-level air inlet port I 7.6 and one-level air inlet pipe hole I 7.7, the other end is provided with pore I of simultaneously intaking with one-level, the one-level atomization cavity I 7.8 that one-level air inlet pipe hole I is communicated with, one-level water inlet pore I and one-level air inlet pipe hole I are single channel pore or multi-channel tube pore structure, secondary atomization part I one end is provided with secondary atomised spray import I 7.9 and secondary atomised spray pore I 7.10 simultaneously, secondary inlet mouth I 7.11 and secondary inlet pore I 7.12, with secondary atomised spray pore I while that the other end being provided with, the secondary atomization cavity I 7.13 that secondary inlet pore I is communicated with, wherein the one-level atomization cavity I of one-level atomization part I assembles with secondary atomised spray import I activity that secondary is atomized part I, secondary atomization cavity I is communicated with large shower nozzle I and activity is assembled, secondary atomised spray pore I and secondary inlet pore I are single channel pore or multi-channel tube pore structure, as Figure 10, shown in 11, the water output that one-level water inlet I and main frame air water regulate and control conveying device is connected, one-level air inlet port I, the gas output that secondary inlet mouth I and main frame air water regulate and control conveying device is connected.The quantity of above-mentioned multistage atomizing assembly can be determined according to actual atomizing effect and requirement, the preferred secondary atomizing component of the present invention, in addition, one-level water inlet pore I, one-level air inlet pipe hole I, secondary atomised spray pore I and secondary inlet pore I both can adopt single channel pore, also can be that adopt multi-channel tube pore structure, its number of channels can be determined according to atomizing effect when cross section is identical, as shown in the figure, scheme provided by the present invention is single channel hole structure.
In said structure, in order to the atomization long drive effect making large discharge composite atomization long drive device reach design further, the intake ratio of pore I 7.5 cross-sectional area of large discharge composite atomization long drive device one-level atomization one-level air inlet pipe hole I 7.7 cross-sectional area of part I 7.1 and one-level is 1 ~ 4:1, and one-level air inlet pipe hole I and the one-level ratio that the cross-sectional area sum of pore I and secondary be atomized secondary atomised spray pore I 7.10 cross-sectional area of part I 7.2 of intaking is 1.0 ~ 1.1:1; Secondary inlet pore I 7.12 cross-sectional area of secondary atomization part I is 1 ~ 3:1 with secondary atomised spray pore I 7.10 cross-sectional area ratio, and secondary inlet pore I 7.12 cross-sectional area and secondary atomised spray pore I cross-sectional area sum equal large shower nozzle 7.3 pore cross-sectional area.The design of said structure parameter is the data that applicant obtains through test of many times summary, and obtains sufficient checking at the construction field (site).
As shown in Figure 3, interval, Mobile enclosed casing 4 inner front upper place is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device 9 of main frame low discharge composite atomization that Mobile enclosed casing forms outward, main frame low discharge composite atomization fan-shaped long drive device is positioned at above the fan-shaped long drive device 7 of large discharge composite atomization; Be provided with below the fan-shaped long drive device of main frame low discharge composite atomization and support supporting plate 10, supporting bracket front edge of board and Mobile enclosed casing are hinged, rear end and to be arranged on elevation regulator 11 lower end of Mobile enclosed box house hinged; The gas of the fan-shaped long drive device of main frame low discharge composite atomization, water input and main frame air water regulate and control the gas of conveying device, water output is connected.
As Fig. 7, 8, shown in 9, this dust smoke and extraction system also comprises the fan-shaped long drive device 12 of main frame external mobile formula low discharge composite atomization regulating and controlling conveying device 5 with main frame air water and be connected, its structure comprises the movable stand 12.2 that is provided with road wheel 12.1 and is erected at the external casing 12.4 above movable stand by pole 12.3, in external casing, interval is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of external low discharge composite atomization that casing forms outward, movable stand is provided with side by side the high pressure flexible water hose folding and unfolding dish 12.7 and high pressure air hose folding and unfolding dish 12.8 that are wound with high pressure water transport pipe 12.5 and high pressure gas pipeline 12.6 respectively, the water output that input 12.9 and the main frame air water of high pressure flexible water hose regulate and control conveying device is connected, output is connected with the water input of the fan-shaped long drive device of external low discharge composite atomization, the gas output that input 12.10 and the main frame air water of high pressure air hose regulate and control conveying device is connected, output is connected with the gas input of the fan-shaped long drive device of external low discharge composite atomization, movable stand lower front portion is provided with leg 12.11, pole 12.3 upper end and external casing hinged, and be provided with elevation angle adjusting lever 12.12, be convenient to the spray angle adjusting the fan-shaped long drive device of external low discharge composite atomization.
As Figure 14, 15, shown in 16, this dust smoke and extraction system also comprises along becoming the spaced apart fixed smoke abatement and dust control extension set 13 of hole tunnel, structure comprises the extension set air water regulation and control conveying device 14 be fixed on two mat walls and the suspension bracket 15 be fixed on tunnel vault, be provided with below suspension bracket and hang casing 16, hang interval in casing to install by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of extension set low discharge composite atomization that casing forms outward, the gas of extension set air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output respectively with the gas of the fan-shaped long drive device of extension set low discharge composite atomization, water input connects, hang casing spout side and noise damper 17 is installed.Extension set air water regulation and control conveying device is arranged in casing, it is identical that its system principle and main frame air water regulate and control conveying device, structure comprises: the air inlet pipeline 14.1 be connected with pneumatics air delivering pipeline, the inlet pipeline 14.2 be connected with supply channel wherein inlet pipeline is connected with pressure switch I 14.3, booster pump 14.4 and booster pump pressure regulation covering circulation line 14.5 are installed, booster pump pressure regulation covering circulation line installs booster pump outlet water pressure gauge 14.6 and booster pump pressure regulator valve 14.7, hydraulic pipeline is connected with electrically-controlled valve I 14.8, electrically-controlled valve outlet high-pressure hose 14.9 connects low discharge composite atomization fan-shaped long drive device water inlet, air inlet pipeline 14.1 is equipped with pressure switch II 14.10, air gauge 14.11, electrically-controlled valve II 14.12 connecting gas transmission pipe road 14.13, and air delivering pipeline connects low discharge composite atomization fan-shaped long drive device air inlet port.Automatically controlled part has line breaker 14.14, fuse 14.15 and cycle time relay 14.16, cycle time relay controls electrically-controlled valve, as shown in figure 27, power supply indicator 14.17 and relay indicating light 14.18 are arranged on point machine box door 14.19, energising red led is bright, and during work, green indicating lamp is bright.
As Figure 23, 24, 25, shown in 26, the fan-shaped long drive device 9 of main frame low discharge composite atomization, the fan-shaped long drive device of external low discharge composite atomization, low discharge composite atomization long drive device structure in the fan-shaped long drive device of extension set low discharge composite atomization includes and is at least atomized part II 18 by one-level, secondary atomization part II 19 is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable little shower nozzle 20 assembled of part by joint and afterbody, casing is stretched out in little shower nozzle front end, wherein one-level atomization part II one end is provided with one-level water inlet II 21 and one-level water inlet pore II 22 simultaneously, one-level air inlet port II 23 and one-level air inlet pipe hole II 24, the other end is provided with pore II of simultaneously intaking with one-level, the one-level atomization cavity II 25 that one-level air inlet pipe hole II is communicated with, one-level water inlet pore II and one-level air inlet pipe hole II are single channel pore or multi-channel tube pore structure, secondary atomization part II one end is provided with secondary atomised spray import II 26 and secondary atomised spray pore II 27 simultaneously, secondary inlet mouth II 28 and secondary inlet pore II 29, with secondary atomised spray pore II while that the other end being provided with, the secondary atomization cavity II 30 that secondary inlet pore II is communicated with, wherein the one-level atomization cavity II of one-level atomization part II assembles with secondary atomised spray import II activity that secondary is atomized part II, secondary atomization cavity II is communicated with little shower nozzle and activity is assembled, secondary atomised spray pore II and secondary inlet pore II are single channel pore or multi-channel tube pore structure, the water output that one-level water inlet II and air water regulate and control conveying device is connected, one-level air inlet port II, the gas output that secondary inlet mouth II and air water regulate and control conveying device is connected.The quantity of above-mentioned multistage atomizing assembly can be determined according to actual atomizing effect and requirement, the preferred secondary atomizing component of the present invention, in addition, one-level water inlet pore II, one-level air inlet pipe hole II, secondary atomised spray pore II and secondary inlet pore II both can adopt single channel pore, also can be when cross section is identical, adopt multi-channel tube pore structure, its number of channels can be determined according to atomizing effect.As shown in the figure, scheme provided by the present invention is single channel hole structure.
In order to the atomization long drive effect making low discharge composite atomization long drive device reach design further, the intake ratio of pore II 29 cross-sectional area of one-level atomization one-level air inlet pipe hole II 24 cross-sectional area of part II 18 of low discharge composite atomization long drive device and secondary is 1 ~ 4:1, and one-level air inlet pipe hole II and the one-level ratio that the cross-sectional area sum of pore II and secondary be atomized secondary atomised spray pore II 27 cross-sectional area of part II 19 of intaking is 1.0 ~ 1.1:1; Secondary inlet pore II 29 cross-sectional area of secondary atomization part II is 1 ~ 3:1 with secondary atomised spray pore II 27 cross-sectional area ratio, and secondary inlet pore II 29 cross-sectional area and secondary atomised spray pore II cross-sectional area sum equal little shower nozzle 20 pore cross-sectional area.The design of said structure parameter is the data that applicant obtains through test of many times summary, and obtains sufficient checking at the construction field (site).
As shown in figure 17, main frame air water regulation and control conveying device 5 comprises the air inlet main line 5.1 be connected with pneumatics air delivering pipeline, the air inlet be communicated with air inlet main line time pipeline 5.2, external air delivering pipeline 5.3, and the water inlet main line 5.4 to be connected with supply channel, the water inlet time pipeline 5.5 be communicated with water inlet main line, external hydraulic pipeline 5.6, wherein water inlet main line is installed main pump 5.7 and main pump pressure regulation covering circulation line 5.8, main pump pressure regulation covering circulation line installs main pump outlet water pressure gauge 5.9 and main pump pressure regulator valve 5.10, main pump outlet pipeline is connected with large water knockout drum 5.11 and little water knockout drum 5.16 simultaneously, large water knockout drum is connected with the one-level water inlet I of each large discharge composite atomization long drive device respectively by high-pressure hose 5.20, water inlet time pipeline is installed auxiliary pump 5.12 and auxiliary pump supercharging covering circulation line 5.13, auxiliary pump supercharging covering circulation line installs auxiliary pump discharge water pressure gauge 5.14 and auxiliary pump pressure regulator valve 5.15, auxiliary pump discharge pipeline is connected with little water knockout drum 5.16 and external hydraulic pipeline, little water knockout drum is connected with the one-level water inlet II of each low discharge composite atomization long drive device respectively by high-pressure hose 5.20, the outlet of air inlet main line is connected with large steam separator 5.17, large steam separator is connected by the one-level air inlet port I of high-pressure hose 5.21 and each large discharge composite atomization long drive device, secondary inlet mouth I, air inlet time tube outlet is connected with little steam separator 5.18 and external air delivering pipeline, and little steam separator is connected by the one-level air inlet port II of high-pressure hose 5.21 and each low discharge composite atomization long drive device, secondary inlet mouth II, air inlet main line, air inlet time pipeline, external air delivering pipeline, main pump outlet pipeline, auxiliary pump discharge pipeline and external hydraulic pipeline install motor operated valve 5.19 respectively.The present invention by installing main pump and main pump pressure regulation covering circulation line on water inlet main line, and auxiliary pump and auxiliary pump supercharging covering circulation line are installed on water inlet time pipeline, its effect improves the hydraulic pressure in output pipe, make its hydraulic pressure ensureing to flow to the fan-shaped long drive device of large and small flow composite atomization suitable with air pressure, then ensure atomizing effect.
In addition, beam positioner 31 is installed at rear, Mobile enclosed casing 4 top, and light beam is from the positive front upper place of cabinet preformed hole directive machine, and its beam direction is consistent with the water smoke beam direction that large discharge composite atomization fan-shaped long drive device sprays;
As shown in Figure 6, the curved shape of Mobile enclosed casing 4 front upper, rear portion is provided with main frame distribution control box 32, the 48-power supply indicator HL32 be connected on main frame distribution control box 6 interior circuit board, main pump indicator lamp HL1, little pump indicator lamp HL2, start button SB2, stop button SB1, universal seclector SA and double control switch K1, double control switch K2 is provided with above distribution control box panel, main pump outlet water pressure gauge 5.9 and main pump pressure regulator valve 5.10, auxiliary pump discharge water pressure gauge 5.14 and auxiliary pump pressure regulator valve 5.15 are arranged on main frame distribution control box panel side.
As shown in figure 18, the invention provides a kind of physical circuit of the main frame distribution control box for implementing:
Five-core cable drawn by main frame, external tunnel three-phase alternating-current supply; Cable enters cabinet and connects circuit breaker Q F end of incoming cables, and QF leading-out terminal connects A.C. contactor KM1, and KM1 connects thermal relay FR1, and FR1 accesses supercharging main pump M1 motor wiring post; FR1 constant close contact is serially connected in KM1 self-locking circuit; A.C. contactor KM2 end of incoming cables access circuit breaker Q F leading-out terminal, KM2 leading-out terminal access thermal relay FR2, FR2 leading-out terminal accesses auxiliary pump M2 motor wiring post; FR2 constant close contact is serially connected in KM2 self-locking circuit; Wireless remote controlled receiver KGS power line (380V) accesses QF leading-out terminal two live wires; Secondary circuit fuse FU one end access circuit breaker Q F leading-out terminal live wire, the other end connects stop button SB1---wireless remote controlled receiver KGS constant close contact----start button SB2, wireless remote controlled receiver KGS constant open contact and ten thousand turns of switch terminal 5,7; Power supply indicator HL mono-end is connected on FU leading-out terminal, another terminal connecting zero line;
Start button SB2, wireless remote controlled receiver KGS constant open contact terminals are connect after universal seclector SA terminals 1,3 parallel connection; Universal seclector SA terminals 9 connect double control switch K1 the 1st terminals, and terminals 11 connect double control switch K1 the 2nd terminals, and connect motor operated valve YM4, another terminal connecting zero line of motor operated valve YM4; Universal seclector SA terminals 2 connect terminals 10, indicator lamp HL2, KM2, KM2 self-locking circuit, double control switch K1 No. 3 terminal, double control switch K2 the 5th and No. 7 terminal; Another termination universal seclector of motor operated valve KM2 self-locking circuit SA terminals 6; Another terminal connecting zero line of HL2, KM2; Motor operated valve YM5 connects double control switch K1 the 4th prap, another terminal connecting zero line; Motor operated valve YM6 connects double control switch K2 the 6th prap, another terminal connecting zero line; Motor operated valve YM7 connects double control switch K2 the 8th prap, another terminal connecting zero line.Universal seclector SA terminals 4 connect terminals 12, indicator lamp HL1, KM1, KM1 self-locking circuit and motor operated valve YM1, motor operated valve YM2, motor operated valve YM3 mono-terminal, another termination universal seclector of KM1 self-locking circuit SA terminals 8; Indicator lamp HL1, motor operated valve KM1, motor operated valve YM1, motor operated valve YM2, motor operated valve YM3 another terminal connecting to neutral line.
When universal seclector SA moves I gear left to, by starting switch or remote control starting switch, now, auxiliary pump M2 works, double control switch K1 controls motor operated valve YM4, motor operated valve YM5 opening and closing, and double control switch K2 controls motor operated valve YM6, motor operated valve YM7 opening and closing, and auxiliary pump work indicator lamp (green) is bright;
When universal seclector SA moves II gear to the right to, by starting switch or remote control starting switch, now, main pump M1 works, and motor operated valve YM1, motor operated valve YM2, motor operated valve YM3, motor operated valve YM4 leave, and main pump relay indicating light (green) is bright.
Application example one: during tunnel tunnel face sinking and blasting
The construction of dust smoke and extraction system work incoming tunnel three phase mains, pneumatics air delivering pipeline, supply channel, portable smoke abatement and dust control main frame is placed in the centre position, tunnel apart from face 50m ~ 60m, start portable smoke abatement and dust control main frame, conveying device is regulated and controled by air water, the gas of certain pressure and flow and water are flowed to large discharge composite atomization fan-shaped long drive device and the fan-shaped long drive device of low discharge composite atomization, penetrate after its composite atomization, penetrate mist and there is convergence, it is fine and closely woven that water smoke drips grain, fan-shaped water smoke area coverage is large, far firing range.Portable smoke abatement and dust control main frame is in the environment of tunnel digging time zone, gas, hydraulic pressure all regulates and controls when 0.7Mpa, fan-shaped water smoke range adds disperse distance can reach 50m ~ 60m, when being placed on the centre position, tunnel apart from face 50m ~ 60m, the fan-shaped water smoke ejected can be covered to whole spaces of face from vault bottom, open quick-fried front half a minute remote-controlled start-up, continue intensive water smoke and will cover the stone shielding explosion and kick up instantaneously, dust and smog, dust and water smoke drip grain and to collide adhesion and accelerate it and fall, smog is also filtered by water smoke and dilutes simultaneously, after explosion, 3 ~ 5min shuts down, Blasting dust is eliminated, simultaneously, because the stone kicked up is washed wet by water smoke, decrease the generation of airborne dust in dress quarrel process.
Application example two: during spray anchor operation
Enable main frame external mobile formula low discharge composite atomization fan-shaped long drive device and the fan-shaped long drive device of main frame low discharge composite atomization simultaneously, the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization is placed on apart from face 10m ~ 15m ajutage side, jet angle of sprinkler flow is above inclined tunnel, hole center line, the fan-shaped long drive device of main frame low discharge composite atomization is still parked in the ajutage side, tunnel apart from face 50m ~ 60m, jet angle of sprinkler flow is above hole, now, penetrate mist and can form the long stereo dust-cleaning district of front and back twice 25m ~ 30m, effectively fall except the dust in the cyclone of spray anchor operation area and the dust to the disperse of tunnel portal direction.
Application example three: during mucking out
Mucking out is enabled portable main frame low discharge composite atomization fan-shaped long drive device equally or is enabled the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization simultaneously, the main frame external mobile formula low discharge composite atomization fan-shaped long drive device elevation angle covers injection above loader position, eliminate the dust that dress quarrel is kicked up, the main frame low discharge composite atomization fan-shaped long drive device elevation angle is sprayed above hole, the dust of shielding elimination to entrance orientations disperse and the tail gas of motor vehicles and machines discharge.
Application example four: become hole tunnel flue dust elimination on the way
Fixed smoke abatement and dust control extension set installs one every 100m ~ 200m on the way at one-tenth hole tunnel, extension set air water regulation and control conveying device input respectively with pneumatics air delivering pipeline, supply channel connects, work electricity consumption access three phase mains, extension set air water regulation and control conveying device casing is fixed on two mat walls, the fan-shaped long drive device of extension set low discharge composite atomization is fixed on tunnel vault, the three-dimensional smoke abatement and dust control district that mist forms 30m ~ 40m is penetrated to entrance orientations level, and sprayed and the intermittent time by the setting of extension set air water regulation and control conveying device, there is automatic cycle clock switch machine function and tunnel pneumatics air delivering pipeline and supply channel pressure lower than working value automatic shutdown function, effective elimination tunnel flue dust on the way.
In order to prove effect of the present invention further, enumerating case history and being verified:
Application project overview: this project is that a newly-built left side, Shanxi Province (Zuoquan) multitude (Licheng) speedway ZL1 marks yellow family meeting left tunnel line.This bid section route start (K3+664.641); rise from Yin Jia village place, Liaoyang town, northeast, Zuoquan; Jie Fenxing speedway Zuoquan hinge, relates to railway, along edge, buffer area, XinNao in Meng nature protection area show line to Huang Jiahui, if Zuoquan's intercommunication across withered river, sun on to the south; southeastward go up and relate to railway across sun, remove obstacles Xi Yuan; if tunnel Chuan Shan, the premenstrual Long Zhiyuan village, relates to railway west side show line along sun; terminal pile No. is YK16+900(ZK16+896.396), route total length 13.235Km.
In bid section, principal works has: 5503.85m(two hole in tunnel is long)/2; Main line bridge 2876.25 m/13; Interchange 1 place (containing ramp bridge 7, place of charge station 1), overline bridge 230.08 linear meter(lin.m.)/4, culvert 416.61 linear meter(lin.m.)/12, passage 263.39 linear meter(lin.m.)/7; The cubic metre of earth and stone 352.86 ten thousand sides, roadbed attached mortar flag stone 8.39 ten thousand side.This engineering went into operation on March 1st, 2013, and on April 30th, 2015 is completed.
Dedusting application construction of tunnel summary table
Dedusting test section is yellow family meeting left tunnel line Zk9+895 ~ Zk10+205, and this section is III grade of country rock, and lithology is apoplexy ashing rock, and ROCK MASS JOINT is cranny development.Self is general, but can not exposed overlong time, and blindage has block or little middle landslide by vibrations.In hole, underground water is not very grown, and is generally moist shape, and when rainy season or heavy showers, there is the water outlet of a small amount of some drop-wise local.
1, explosion dedusting performance: 14 ~ 15 November in 2014, in Shanxi Province, newly-built speedway Zuoquan is to Licheng Duan Huangjia meeting 1866m place, left tunnel hole and 1880m place, the wide 13m of excavated section, high 8.5m, three grades of country rocks, full-face blast, onepull degree of depth 4m, ammonium nitrate emulsion ampoule 240Kg.Apart from face blow-up point 29m position, carried out twice test, when being once 20:00 in evening on the 14th, opening quick-fried front half a minute opens portable smoke abatement and dust control main frame, and after explosion, 5min shuts down, and passes by again 8min, and namely after explosion, 13min starts collecting test; When second time is 8:00 on the 15th, do not start portable smoke abatement and dust control main frame, after explosion, 13min starts collecting test, and twice collecting test is all carry out when not blowing, and twice test data contrast is as follows:
。
Same having carried out twice temperature test according to face 29m place, be once do not start main dust removal machine, after explosion, 13 min probe temperatures are 20.4 ゜ c; be once open main dust removal machine, shut down after 5 min, pass by again 8min; namely after explosion, 13 min probe temperatures are 16.8 ゜ c, and decline 3.6 ゜ c.
2, spray anchor operation dedusting example: during 15:00 on the 15th October in 2014 ~ 16:00 time, twice contrast test has been carried out in tunnel air-supply situation, once only open the fan-shaped long drive device of main frame external mobile formula low discharge composite atomization in distance scope of operation 30m position, at that time because affecting by inverted arch construction machinery, main frame low discharge composite atomization fan-shaped long drive device not enabled, so, this test data can not represent true dust removing effects, actual dustproof function should be much better than this test effect, and this test data is in Table:
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Claims (10)

1. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization, it is characterized in that the portable smoke abatement and dust control main frame (3) comprising the tunnel piercing face of acting on, its structure comprises Mobile enclosed casing (4), Mobile enclosed box house forward lower part interval is installed by some large discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device (7) of large discharge composite atomization that Mobile enclosed casing forms outward, in Mobile enclosed box house, main frame air water regulation and control conveying device (5) and main frame distribution control box (6) are installed in rear, the gas of main frame air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output respectively with large discharge composite atomization fan-shaped long drive device gas, water input connects.
2. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 1, it is characterized in that the fan-shaped long drive device (7) of large discharge composite atomization is inclined upwardly by the support (8) be fixed in Mobile enclosed casing to install, the structure of large discharge composite atomization long drive device comprises at least by one-level atomization part I (7.1), secondary atomization part I (7.2) is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable large shower nozzle (7.3) assembled of part by joint and afterbody, Mobile enclosed casing is stretched out in large shower nozzle front end, wherein one-level atomization part I one end is provided with one-level water inlet I (7.4) and one-level water inlet pore I (7.5) simultaneously, one-level air inlet port I (7.6) and one-level air inlet pipe hole I (7.7), the other end is provided with pore I of simultaneously intaking with one-level, the one-level atomization cavity I (7.8) that one-level air inlet pipe hole I is communicated with, one-level water inlet pore I and one-level air inlet pipe hole I are single channel pore or multi-channel tube pore structure, secondary atomization part I one end is provided with secondary atomised spray import I (7.9) and secondary atomised spray pore I (7.10) simultaneously, secondary inlet mouth I (7.11) and secondary inlet pore I (7.12), with secondary atomised spray pore I while that the other end being provided with, the secondary atomization cavity I (7.13) that secondary inlet pore I is communicated with, wherein the one-level atomization cavity I of one-level atomization part I assembles with secondary atomised spray import I activity that secondary is atomized part I, secondary atomization cavity I is communicated with large shower nozzle I and activity is assembled, secondary atomised spray pore I and secondary inlet pore I are single channel pore or multi-channel tube pore structure, the water output that one-level water inlet I and main frame air water regulate and control conveying device is connected, one-level air inlet port I, the gas output that secondary inlet mouth I and main frame air water regulate and control conveying device is connected.
3. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 1, it is characterized in that interval, Mobile enclosed casing (4) inner front upper place is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device (9) of main frame low discharge composite atomization that Mobile enclosed casing forms outward, main frame low discharge composite atomization fan-shaped long drive device is positioned at fan-shaped long drive device (7) top of large discharge composite atomization; Be provided with below the fan-shaped long drive device of main frame low discharge composite atomization and support supporting plate (10), supporting bracket front edge of board and Mobile enclosed casing are hinged, rear end and to be arranged on elevation regulator (11) lower end of Mobile enclosed box house hinged; The gas of the fan-shaped long drive device of main frame low discharge composite atomization, water input and main frame air water regulate and control the gas of conveying device, water output is connected.
4. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 1, it is characterized in that this dust smoke and extraction system also comprises the fan-shaped long drive device (12) of main frame external mobile formula low discharge composite atomization regulating and controlling conveying device (5) with main frame air water and be connected, its structure comprises the movable stand (12.2) that is provided with road wheel (12.1) and is erected at the external casing (12.4) above movable stand by pole (12.3), in external casing, interval is installed by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of external low discharge composite atomization that casing forms outward, movable stand is provided with side by side the high pressure flexible water hose folding and unfolding dish (12.7) and high pressure air hose folding and unfolding dish (12.8) that are wound with high pressure water transport pipe (12.5) and high pressure gas pipeline (12.6) respectively, the water output that input (12.9) and the main frame air water of high pressure flexible water hose regulate and control conveying device is connected, output is connected with the water input of the fan-shaped long drive device of external low discharge composite atomization, the gas output that input (12.10) and the main frame air water of high pressure air hose regulate and control conveying device is connected, output is connected with the gas input of the fan-shaped long drive device of external low discharge composite atomization, movable stand lower front portion is provided with leg (12.11), pole (12.3) upper end and external casing hinged, and be provided with elevation angle adjusting lever (12.12).
5. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 1, it is characterized in that this dust smoke and extraction system also comprises along becoming the spaced apart fixed smoke abatement and dust control extension set (13) of hole tunnel, structure comprises extension set air water regulation and control conveying device (14) be fixed on two mat walls and the suspension bracket (15) be fixed on tunnel vault, be provided with below suspension bracket and hang casing (16), hang interval in casing to install by some low discharge composite atomization long drive devices, in fan-shaped distribution and front end stretches out the fan-shaped long drive device of extension set low discharge composite atomization that casing forms outward, the gas of extension set air water regulation and control conveying device, water input is laid with along side, tunnel respectively and the pneumatics air delivering pipeline that forward extend synchronous with tunnel piercing and supply channel are connected, gas, water output respectively with the gas of the fan-shaped long drive device of extension set low discharge composite atomization, water input connects, hang casing spout side and noise damper (17) is installed.
6. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 3 or 4 or 5, it is characterized in that the fan-shaped long drive device (9) of main frame low discharge composite atomization, the fan-shaped long drive device of external low discharge composite atomization, low discharge composite atomization long drive device structure in the fan-shaped long drive device of extension set low discharge composite atomization includes and is at least atomized part II (18) by one-level, secondary atomization part II (19) is connected in series the multistage atomizing assembly of formation in turn and is atomized the movable little shower nozzle (20) assembled of part by joint and afterbody, casing is stretched out in little shower nozzle front end, wherein one-level atomization part II one end is provided with one-level water inlet II (21) and one-level water inlet pore II (22) simultaneously, one-level air inlet port II (23) and one-level air inlet pipe hole II (24), the other end is provided with pore II of simultaneously intaking with one-level, the one-level atomization cavity II (25) that one-level air inlet pipe hole II is communicated with, one-level water inlet pore II and one-level air inlet pipe hole II are single channel pore or multi-channel tube pore structure, secondary atomization part II one end is provided with secondary atomised spray import II (26) and secondary atomised spray pore II (27) simultaneously, secondary inlet mouth II (28) and secondary inlet pore II (29), with secondary atomised spray pore II while that the other end being provided with, the secondary atomization cavity II (30) that secondary inlet pore II is communicated with, wherein the one-level atomization cavity II of one-level atomization part II assembles with secondary atomised spray import II activity that secondary is atomized part II, secondary atomization cavity II is communicated with little shower nozzle and activity is assembled, secondary atomised spray pore II and secondary inlet pore II are single channel pore or multi-channel tube pore structure, the water output that one-level water inlet II and air water regulate and control conveying device is connected, one-level air inlet port II, the gas output that secondary inlet mouth II and air water regulate and control conveying device is connected.
7. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 1, it is characterized in that main frame air water regulation and control conveying device (5) comprises the air inlet main line (5.1) be connected with pneumatics air delivering pipeline, the air inlet be communicated with air inlet main line time pipeline (5.2), external air delivering pipeline (5.3), and the water inlet main line (5.4) to be connected with supply channel, the water inlet time pipeline (5.5) be communicated with water inlet main line, external hydraulic pipeline (5.6), wherein water inlet main line installs main pump (5.7) and main pump pressure regulation covering circulation line (5.8), main pump pressure regulation covering circulation line installs main pump outlet water pressure gauge (5.9) and main pump pressure regulator valve (5.10), main pump outlet pipeline is connected with large water knockout drum (5.11) and little water knockout drum (5.16) simultaneously, large water knockout drum is communicated with the one-level water inlet I of each large discharge composite atomization long drive device respectively by high-pressure hose (5.20), water inlet time pipeline is installed auxiliary pump (5.12) and auxiliary pump supercharging covering circulation line (5.13), auxiliary pump supercharging covering circulation line installs auxiliary pump discharge water pressure gauge (5.14) and auxiliary pump pressure regulator valve (5.15), auxiliary pump discharge pipeline is connected with little water knockout drum (5.16) and external hydraulic pipeline, little water knockout drum is connected with the one-level water inlet II of each low discharge composite atomization long drive device respectively by high-pressure hose (5.20), the outlet of air inlet main line is connected with large steam separator (5.17), large steam separator is connected by the one-level air inlet port I of high-pressure hose (5.21) and each large discharge composite atomization long drive device, secondary inlet mouth I, air inlet time tube outlet is connected with little steam separator (5.18) and external air delivering pipeline, and little steam separator passes through the one-level air inlet port II of high-pressure hose (5.21) and each low discharge composite atomization long drive device, secondary inlet mouth II is connected, air inlet main line, air inlet time pipeline, external air delivering pipeline, main pump outlet pipeline, auxiliary pump discharge pipeline and external hydraulic pipeline install motor operated valve (5.19) respectively.
8. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 2, it is characterized in that the intake ratio of pore I (7.5) cross-sectional area of one-level air inlet pipe hole I (7.7) cross-sectional area and the one-level of the one-level atomization part I (7.1) of large discharge composite atomization long drive device is 1 ~ 4:1, one-level air inlet pipe hole I and the one-level ratio that the cross-sectional area sum of pore I and secondary be atomized secondary atomised spray pore I (7.10) cross-sectional area of part I (7.2) of intaking is 1.0 ~ 1.1:1; Secondary inlet pore I (7.12) cross-sectional area and secondary atomised spray pore I (7.10) the cross-sectional area ratio of secondary atomization part I are 1 ~ 3:1, and secondary inlet pore I (7.12) cross-sectional area and secondary atomised spray pore I cross-sectional area sum equal large shower nozzle (7.3) pore cross-sectional area.
9. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 6, it is characterized in that the intake ratio of pore II (29) cross-sectional area of one-level air inlet pipe hole II (24) cross-sectional area and the secondary of the one-level atomization part II (18) of low discharge composite atomization long drive device is 1 ~ 4:1, one-level air inlet pipe hole II and the one-level ratio that the cross-sectional area sum of pore II and secondary be atomized secondary atomised spray pore II (27) cross-sectional area of part II (19) of intaking is 1.0 ~ 1.1:1; Secondary inlet pore II (29) cross-sectional area and secondary atomised spray pore II (27) the cross-sectional area ratio of secondary atomization part II are 1 ~ 3:1, and secondary inlet pore II (29) cross-sectional area and secondary atomised spray pore II cross-sectional area sum equal little shower nozzle (20) pore cross-sectional area.
10. the fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization according to claim 7, it is characterized in that the curved shape of Mobile enclosed casing (4) front upper, rear upper is provided with beam positioner (31), the main pump indicator lamp HL1(33 be connected on main frame distribution control box (6) interior circuit board is provided with) above main frame distribution control box panel, little pump indicator lamp HL2(34), start button SB2(35), stop button SB1(36), universal seclector SA(37) and double control switch K1(38), double control switch K2(39), main pump outlet water pressure gauge (5.9) and main pump pressure regulator valve (5.10), auxiliary pump discharge water pressure gauge (5.14) and auxiliary pump pressure regulator valve (5.15) are arranged on main frame distribution control box panel side.
CN201520423432.3U 2015-03-11 2015-06-18 The fan-shaped long drive dust smoke and extraction system of tunnel drilling and blasting composite atomization Withdrawn - After Issue CN204716278U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929678A (en) * 2015-03-11 2015-09-23 任凤香 Tunnel drill blasting compound atomization fan-shaped remote shot smoke prevention and dust control system
CN109723484A (en) * 2018-12-25 2019-05-07 长安大学 A kind of closed pressure combination ventilating system in drill bursting construction tunnel and method of ventilation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929678A (en) * 2015-03-11 2015-09-23 任凤香 Tunnel drill blasting compound atomization fan-shaped remote shot smoke prevention and dust control system
CN104929678B (en) * 2015-03-11 2017-03-01 任凤香 Tunnel drilling and blasting composite atomization sector long drive dust smoke and extraction system
CN109723484A (en) * 2018-12-25 2019-05-07 长安大学 A kind of closed pressure combination ventilating system in drill bursting construction tunnel and method of ventilation

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