CN110124417A - A kind of mine integral depositing dust foam preparation facilities - Google Patents
A kind of mine integral depositing dust foam preparation facilities Download PDFInfo
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- CN110124417A CN110124417A CN201910421738.8A CN201910421738A CN110124417A CN 110124417 A CN110124417 A CN 110124417A CN 201910421738 A CN201910421738 A CN 201910421738A CN 110124417 A CN110124417 A CN 110124417A
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- depositing dust
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- 239000006260 foam Substances 0.000 title claims abstract description 55
- 239000000428 dust Substances 0.000 title claims abstract description 34
- 238000000151 deposition Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000001802 infusion Methods 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 230000004323 axial length Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005213 imbibition Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 description 12
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 206010000234 Abortion spontaneous Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 208000015994 miscarriage Diseases 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000000995 spontaneous abortion Diseases 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- 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
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nozzles (AREA)
Abstract
A kind of mine integral depositing dust foam preparation facilities, mainly by pressure water supplying pipe, it produces infusion and premixes cylinder, press wind supply pipe, gas-liquid mixed accelerates cylinder, flaring eddy flow produces bubble cylinder composition, it wherein produces infusion and premixes cylinder, press wind supply pipe, gas-liquid mixed accelerates cylinder, flaring eddy flow produces bubble cylinder and is located on same axis, it produces in infusion both premix barrel body and successively sets spiral water jet nozzle, liquid self-absorbing room, premixer, diffuser casing and mixed liquor go out flow chamber, liquid self-absorbing room is provided with imbibition interface tube and connect with pipette, pressure water supplying pipe is connected by fast joint with spiral water jet nozzle, gas-liquid mixed accelerates successively to set inlet plenum in cylinder, annular wind jet nozzle group, mixed liquor accelerating chamber and gas-liquid mixing chamber, pressure wind supply pipe is connected with inlet plenum by fast joint, flaring eddy flow produces bubble cylinder at horn-like, it is internal It is fixed with eddy flow and produces bubble element, simple and reliable for structure, movement-less part, operation and easy maintenance, be suitable for the efficient depositing dust of underground restricted clearance.
Description
Technical field
The invention belongs to safety production technique fields, and in particular to a kind of mine integral depositing dust foam preparation facilities, especially
It is suitable for the efficient preparations of the depositing dust foam of electrical equipment underground coal mine restricted clearance difficult to install.
Background technique
Foam has biggish gas-liquid interface area, increases and dust as gas-liquid two-phase mixture compared with water mist
Contact area, and contain blowing agent component in foam, enhances the wettability of foam, can quick humidification dust, foam
With accumulation property and adhesion, wrapping layer can be formed at dirt source, inhibits the generation of airborne dust, meanwhile, foam jet
When the continuous foam body that is formed, can capture and settle the floating dust generated and effectively wrapping up dirt source, therefore, foam dust suppression
Effect increase significantly than atomizing de-dusting.
Due to mine complicated condition, it is high to be also faced with depositing dust foam preparation difficulty, operating cost for foam dust suppression technology in addition
Bottleneck seriously hinders the development and application of the technology.It is existing both at home and abroad that foam is mainly prepared using net formula foam maker, it is this
Foam maker send expanding foam solution to foaming on metal mesh by force ventilation, has the characteristics that coefficient of foaming height, foam yield are big, but
Low pressure air feed and water supply conditions are only applicable in, therefore foam flowing velocity is small, spray distance is short, cannot effectively send foam to digger
Tool is cut at coal petrography dust, and additional blower is also needed to provide power, is difficult to adapt to the depositing dust requirement in getting working face dust place；
And the applicable wind pressure of such foam maker and range hydraulic pressure are narrow, be easy to cause foaming process it is unstable, at the usual < 60% of bubble rate.
Foreign countries also once used hole filled type foam maker, its working principle is that being increased using the filler in foam maker with micro-pore
Aerating liquid mixing intensity and form foam, this foam maker is easy to block up in use process for the water quality of underground coal mine
Plug, and clean relatively difficult.A kind of foam generator for coal mine dedusting disclosed in Patent No. 200810235773.9, mainly
Including parts such as cylinder, Venturi tube, flow spoiler, balk boards, cylinder is cylindrical body, and Venturi tube is located in cylinder, gas warp
Foam maker cylinder side enters, and makes gas-liquid mixed by flow spoiler and multiple balk boards, since geomantic omen pressure is in flow spoiler
It interacts, often results in geomantic omen " reflux " phenomenon, device stability is poor, and mixing and the foaming process pressure loss are excessive, cause
Foam outlet insufficient pressure is unable to satisfy the injection demand of foam.
Summary of the invention
To solve the above-mentioned problems, the purpose of invention is the shortcoming for coal mine downhole foam depositing dust,
It is strong to provide production bubble ability, coefficient of foaming height, foaming process drag losses are small, and device outlet pressure is high, simple and reliable for structure, operation
Simply, easy to maintain, it can adapt to that underground coal mine water quality is poor, a kind of mine integral depositing dust for the particular/special requirement that hydraulic pressure floats etc.
Foam preparation facilities.
In order to achieve the above object, what the invention is realized by the following technical scheme:
The present invention provides a kind of mine integral depositing dust foam preparation facilities, including pressure water supplying pipe, produce infusion premix cylinder,
Pipette, pressure wind supply pipe, gas-liquid mixed accelerate cylinder and flaring eddy flow to produce bubble cylinder, and the pressure water supplying pipe is connected to institute
The inlet end for producing infusion premix cylinder is stated, the production infusion premix cylinder, gas-liquid mixed accelerate cylinder, flaring eddy flow to produce bubble cylinder
It is sequentially connected between body three by screw thread, the gas-liquid mixed accelerates the inlet end of cylinder to be connected with pressure wind supply pipe, described
Pipette setting the productions infusion premix cylinder on, the pipette be equipped with non-return valve valve, the pressure water supplying pipe with
Regulating valve is equipped in pressure wind supply pipe.
A further improvement of the present invention is that: the production infusion premix cylinder includes sequentially connected spiral water jet nozzle
Body, liquid self-absorbing room, premixer, diffuser casing and mixed liquor go out flow chamber, and liquid self-absorbing room side wall is provided with and described and imbibition
The connected liquid sucting port of pipe.
A further improvement of the present invention is that: spiral water jet nozzle front end is in tapered hollow cylinder shape, with water
The angle of flat axis is 4 ° -5 °, and the diffuser casing is flaring hollow cylinder shape, and the angle with trunnion axis is 5 ° -8 °, the premix
Room is hollow cylinder, and diameter is 6-7 times of cylinder axial length.
A further improvement of the present invention is that: it includes plenum chamber, nozzle ring group, mixing that the gas-liquid mixed, which accelerates cylinder,
Liquid accelerating chamber and gas-liquid mixing chamber, the plenum chamber are toroidal cavity, and side wall is provided with air inlet, the air inlet and the pressure wind
Supply pipe is connected, and the nozzle ring group includes four jet nozzles being evenly arranged on the plenum chamber internal perisporium, described
The upstream side of the injector is connected to plenum chamber, and nozzle established angle is 20 ° -22 °,
A further improvement of the present invention is that: the mixed liquor accelerating chamber is tapered cavity, opening narrows, with level
The angle of axis is 8 ° -10 °, and the gas-liquid mixed room is hollow cylinder, and diameter is 3-4 times of cylinder axial length.
A further improvement of the present invention is that: it includes that conical cavity is placed in conical cavity that the flaring eddy flow, which produces bubble cylinder,
Flaring swirl element, wherein the angle of conical cavity and trunnion axis be, the flaring swirl element include shaft and setting exist
Spiral vane in shaft is uniformly provided with multiple apertures on the spiral vane.
A further improvement of the present invention is that: it gradually broadens when the spiral vane spiral, spiral number is 5-8,
The diameter of the aperture is 1-3mm.
A kind of mining depositing dust foam preparation facilities provided by the invention, including pressure water supplying pipe, produce infusion premix cylinder,
Press wind supply pipe, gas-liquid mixed that cylinder and flaring eddy flow is accelerated to produce bubble cylinder, wherein produce infusion premix cylinder, pressure wind supply pipe,
Gas-liquid mixed accelerates cylinder, flaring eddy flow production bubble cylinder to be located on same axis, produces in infusion both premix barrel body and successively sets spiral water
Jet nozzle, liquid self-absorbing room, premixer, diffuser casing and mixed liquor go out flow chamber, and liquid self-absorbing room is provided with imbibition interface tube and inhales
Liquid pipe connection, pressure water supplying pipe are connected by fast joint with spiral water jet nozzle, gas-liquid mixed acceleration cylinder it is interior according to
Secondary to set plenum chamber, annular wind jet nozzle group, mixed liquor accelerating chamber and gas-liquid mixing chamber, pressure wind supply pipe and plenum chamber pass through fast
Fast connection-peg is connected, and flaring eddy flow produces bubble cylinder at horn-like, and inside is fixed with eddy flow and produces bubble element.Pressure water is by producing infusion
Premix cylinder, which is automatically drawn into, to be produced infusion and generates the mixed foaming liquid of accurate adding proportion, compressed airflow by pressure wind supply pipe into
Entering gas-liquid accelerates mixing drum to accelerate to mixed foaming liquid and realize that gas-liquid uniformly mixes, and mixed gas-liquid two-phase fluid is in flaring
Eddy flow produces in bubble cylinder and generates the high quality foam for being suitble to dust falling in coal mining.
The beneficial effects of the present invention are: the present invention is producing infusion premix shell portion by using spiral water jet nozzle,
Water jet sprays in the shape of a spiral, and the ability for enhancing jet stream imbibition and mixing with production bubble liquid overcomes conventional fluidic imbibition mode
The uneven defect of short distance mixing.Gas-liquid mixed accelerate shell portion by using annular calm the anger jet nozzle to mixed liquor into
Row accelerate, overcome front end produce infusion premix after caused by mixed liquor crushing it is big, the insufficient problem of mixed liquor dynamic pressure, and due to spray
Mouth arranges in a ring, make full use of pressure wind dilatancy it is good, conducive at the advantage of bubble, ensure that gas-liquid comes into full contact with, overcome biography
The problem that system hybrid mode causes mixing uneven because gas-liquid density is different.Bubble shell portion is produced in flaring eddy flow, is utilizing rotation
While miscarriage reinforcement gas-liquid turbulent fluctuation is steeped, the characteristics of foam volume constantly increases during the motion is adapted to, keeps eddy flow first
Part in flaring develop, reduce as resistance it is excessive caused by foam lost, ensure that device height at bubble rate.Whole device can be real
Stability and high efficiency foams under conditions of present low hydraulic pressure, and production bubble ability is strong, and coefficient of foaming is high, and foaming process drag losses are small, device
Outlet pressure is high, and the apparatus structure is simple and reliable, movement-less part, operation and easy maintenance, stable, securely and reliably, non-
Often it is suitable for the efficient depositing dust of underground restricted clearance.
Detailed description of the invention
Fig. 1 is the structure sectional view of mine integral depositing dust foam preparation facilities of the present invention；
Fig. 2 is that mine integral depositing dust foam preparation facilities of the present invention is calmed the anger the structural schematic diagram of jet stream nozzle ring group；
In figure: 1- pressure water supplying pipe；2- produces infusion and premixes cylinder；2-1- spiral water jet nozzle body；2-2- liquid self-absorbing room；
The premixer 2-3-；2-4- diffuser casing；2-5- mixed liquor goes out flow chamber；2-6- liquid sucting port；3- pipette；4- presses wind supply pipe；5- gas
Liquid mixing accelerates cylinder；5-1- plenum chamber；5-2- nozzle ring group；5-3- mixed liquor accelerating chamber；5-4 gas-liquid mixed room；6- is gradually
Expand eddy flow and produces bubble cylinder；6-1- conical cavity；6-2 flaring swirl element；6-3 shaft；6-4 spiral vane；6-5 aperture.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and is further retouched in detail
It states, the embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
Embodiment:
As shown in Figure 1, the present embodiment provides a kind of mine integral depositing dust foam preparation facilities, including pressure water supplying pipe (1),
Producing infusion premix cylinder (2), pipette (3), pressure wind supply pipe (4), gas-liquid mixed accelerates cylinder (5) and flaring eddy flow to produce bubble cylinder
Body (6), the pressure water supplying pipe (1) are connected to the inlet end of production infusion premix cylinder (2), the production infusion premix
Cylinder (2), gas-liquid mixed accelerate to be sequentially connected between cylinder (5), flaring eddy flow production bubble cylinder (6) three by screw thread, described
Gas-liquid mixed accelerates the inlet end of cylinder (5) to be connected with pressure wind supply pipe (4), and the pipette (3) is arranged in the production infusion
It premixes on cylinder (2), the pipette (3) is equipped with non-return valve valve (7), the pressure water supplying pipe (1) and pressure wind supply pipe
(4) regulating valve (8) are equipped on.
Pressure water is flowed by pressure water supplying pipe (1) produces infusion premix cylinder (2), and generation stablizes negative pressure and passes through pipette
(3) sucking foaming agent enters；Compressed air enters gas-liquid mixed by pressure wind supply pipe (4) and accelerates cylinder (5), and jet nozzle produces
Raw high-speed jet makes foam solution can smoothly enter into acceleration cylinder and carries out mixing acceleration；Preliminary mixed gas and liquid mixture enters
Flaring eddy flow produces bubble cylinder (6), by reduction of speed pressurization and flaring swirl element, is sufficiently foamed.
The production infusion premix cylinder includes sequentially connected spiral water jet nozzle body (2-1), liquid self-absorbing room (2-
2), premixer (2-3), diffuser casing (2-4) and mixed liquor go out flow chamber (2-5), and the spiral water jet nozzle front end (2-1) is in gradually
Contracting hollow cylinder shape, the angle with trunnion axis are 5 °, and the water jet of ejection in the shape of a spiral, can uniformly roll up suction surrounding air and be formed
Uniform negative pressure guarantees that imbibition is stablized；Liquid self-absorbing room (2-2) side wall is provided with and the imbibition being connected with pipette (3)
Mouth (2-6), the premixer (2-3) are hollow cylinder, and diameter is 6 times of cylinder axial length, and the diffuser casing (2-4) is flaring
Hollow cylinder shape, the angle with trunnion axis are 6 °, guarantee being sufficiently mixed for foaming agent and water.
It includes plenum chamber (5-1), nozzle ring group (5-2), mixed liquor accelerating chamber that the gas-liquid mixed, which accelerates cylinder (5),
(5-3) and gas-liquid mixing chamber (5-4), the plenum chamber (5-1) are toroidal cavity, and side wall is provided with air inlet (5-5), the air inlet
Mouthful (5-5) is connected with the pressure wind supply pipe (4), and guarantee compressed air is in cylinder even into avoiding air inlet unevenness；It is described
Nozzle ring group (5-2) includes four jet nozzles being evenly arranged on the plenum chamber (5-1) internal perisporium, and the nozzle enters
Mouth end is connected to plenum chamber (5-1), and nozzle established angle is 21 °, is formed local depression around jet nozzle, is guaranteed foam solution
It smoothly introduces and gas-liquid tentatively mixes；The mixed liquor accelerating chamber (5-3) is tapered cavity, opening narrows, with water
The angle of flat axis is 9 °, and the gas-liquid mixed room (5-4) is hollow cylinder, and diameter is 3 times of cylinder axial length.
It includes the flaring swirl element that conical cavity (6-1) is placed in conical cavity that the flaring eddy flow, which produces bubble cylinder (6),
(6-2), wherein the angle of conical cavity and trunnion axis is 8 °, and biphase gas and liquid flow is pressurized by reduction of speed and generates bubble here；Institute
State the spiral vane (6-4) that flaring swirl element (6-2) includes shaft (6-3) and is arranged on shaft (6-3), the spiral
It is uniformly provided with multiple apertures (6-5) on shape blade, is acted on by eddy flow and mesh, gas-liquid two-phase is made sufficiently to produce bubble, the spiral
Blade diameter gradually broadens when shape blade (6-4) is arranged, and spiral number is 8 (one unit of spiral number is " S " type), institute
The diameter for stating aperture (6-5) is 3mm.
Working principle: pressure water is entered by pressure water supplying pipe produces infusion premix cylinder, the spray through spiral jet nozzle
It penetrates under guiding role, advances in the shape of a spiral.Due to the swabbing action of water jet, foaming agent stablized sucking both premix barrel body in
Water jet is uniformly mixed.After underground pressure air is adjusted to operating pressure by regulating valve, accelerated by pressing wind supply pipe to enter gas-liquid
The chamber of calming the anger of mixing chamber, and have pressure wind jet nozzle group high speed ejection, high ram compression wind jet stream is in advancement to rear
Mixed liquor carries out suction acceleration and carries out comprehensive engagement with mixed liquor, is sufficiently mixed.Mixed gas-liquid two-phase fluid is revolved in flaring
It sufficiently foams in miscarriage bubble cylinder, forms high magnification numbe, the high quality depositing dust foam of high outlet pressure.
The beneficial effect of the present embodiment is: this is producing infusion premix shell portion by using spiral water jet nozzle, water
Jet stream sprays in the shape of a spiral, and it is short to overcome conventional fluidic imbibition mode for the ability for enhancing jet stream imbibition and mixing with production bubble liquid
The uneven defect of distance mixing.Shell portion is accelerated to calm the anger jet nozzle to mixed liquor progress by using annular in gas-liquid mixed
Accelerate, it is big to overcome mixed liquor crushing caused by front end produces after infusion premix, the insufficient problem of mixed liquor dynamic pressure, and due to nozzle
Arrange in a ring, make full use of pressure wind dilatancy it is good, conducive at the advantage of bubble, ensure that gas-liquid comes into full contact with, overcome tradition
The problem that hybrid mode causes mixing uneven because gas-liquid density is different.Bubble shell portion is produced in flaring eddy flow, is utilizing eddy flow
While reinforcement gas-liquid turbulent fluctuation carries out producing bubble, the characteristics of foam volume constantly increases during the motion is adapted to, swirl element is made
Develop in flaring, reduce as resistance it is excessive caused by foam lost, ensure that device height at bubble rate.Whole device can be realized
Stability and high efficiency foams under conditions of low hydraulic pressure, and production bubble ability is strong, and coefficient of foaming is high, and foaming process drag losses are small, and device goes out
Mouth pressure is high, and the apparatus structure is simple and reliable, movement-less part, and operation and easy maintenance are stable, securely and reliably, very
Suitable for the efficient depositing dust of underground restricted clearance.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (7)
1. a kind of mine integral depositing dust foam preparation facilities, it is characterised in that: pre- including pressure water supplying pipe (1), production infusion
Mixed cylinder (2), pipette (3), pressure wind supply pipe (4), gas-liquid mixed accelerate cylinder (5) and flaring eddy flow to produce bubble cylinder (6), institute
State the inlet end that pressure water supplying pipe (1) is connected to production infusion premix cylinder (2), the productions infusion premix cylinder (2),
Gas-liquid mixed accelerates to be sequentially connected between cylinder (5), flaring eddy flow production bubble cylinder (6) three by screw thread, the gas-liquid mixed
The inlet end of cylinder (5) is accelerated to be connected with pressure wind supply pipe (4), pipette (3) setting premixes cylinder in the production infusion
(2) on, the pipette (3) is equipped with non-return valve valve (7), is all provided in the pressure water supplying pipe (1) and pressure wind supply pipe (4)
There are regulating valve (8).
2. a kind of mine integral depositing dust foam preparation facilities according to claim 1, it is characterised in that: the production infusion
Premix cylinder includes sequentially connected spiral water jet nozzle body (2-1), liquid self-absorbing room (2-2), premixer (2-3), diffusion
Room (2-4) and mixed liquor go out flow chamber (2-5), and liquid self-absorbing room (2-2) side wall, which is provided with, to be connected with described with pipette (3)
Liquid sucting port (2-6).
3. a kind of mine integral depositing dust foam preparation facilities described in claim 2, it is characterised in that: the spiral water jet spray
The mouth front end (2-1) is in tapered hollow cylinder shape, and the angle with trunnion axis is 4 ° -5 °, and the diffuser casing (2-4) is that flaring is hollow
Cylindrical shape, the angle with trunnion axis are 5 ° -8 °, and the premixer (2-3) is hollow cylinder, and diameter is the 6- of cylinder axial length
7 times.
4. a kind of mine integral depositing dust foam preparation facilities according to claim 1, it is characterised in that: the gas-liquid mixed
Accelerating cylinder (5) includes plenum chamber (5-1), nozzle ring group (5-2), mixed liquor accelerating chamber (5-3) and gas-liquid mixing chamber (5-
4), the plenum chamber (5-1) is toroidal cavity, and side wall is provided with air inlet (5-5), and the air inlet (5-5) and the pressure wind supply
It is connected to pipe (4), the nozzle ring group (5-2) includes four and is evenly arranged in penetrating on the plenum chamber (5-1) internal perisporium
Flow nozzle, the upstream side of the injector are connected to plenum chamber (5-1), and nozzle established angle is 20 ° -22 °.
5. a kind of mine integral depositing dust foam preparation facilities according to claim 4, it is characterised in that: the mixed liquor adds
Fast room (5-3) is tapered cavity, and opening narrows, the angle with trunnion axis is 8 ° -10 °, the gas-liquid mixed room (5-
It 4) is hollow cylinder, diameter is 3-4 times of cylinder axial length.
6. a kind of mine integral depositing dust foam preparation facilities according to claim 1, it is characterised in that: the flaring eddy flow
Producing bubble cylinder (6) includes the flaring swirl element (6-2) that conical cavity (6-1) is placed in conical cavity (6-1), and wherein taper is empty
The angle of chamber and trunnion axis is 6-10 °, and the flaring swirl element (6-2) includes shaft (6-3) and is arranged on shaft (6-3)
Spiral vane (6-4), be uniformly provided with multiple apertures (6-5) on the spiral vane.
7. a kind of mine integral depositing dust foam preparation facilities according to claim 6, it is characterised in that: the spiral shape leaf
Piece (6-4) gradually broadens along its blade of conical cavity (6-1) diameter depth direction, and spiral number is 5-8, the aperture (6-5)
Diameter is 1-3mm.
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| CN201910421738.8A CN110124417A (en) | 2019-05-21 | 2019-05-21 | A kind of mine integral depositing dust foam preparation facilities |
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| CN201910421738.8A CN110124417A (en) | 2019-05-21 | 2019-05-21 | A kind of mine integral depositing dust foam preparation facilities |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509662A (en) * | 2021-04-27 | 2021-10-19 | 南京工业大学 | Clean gas fluorine-free foam fire extinguishing device and fire extinguishing method thereof |
| CN115581876A (en) * | 2022-09-05 | 2023-01-10 | 中国矿业大学 | Gas-liquid coaxial jet type foam generating device |
| CN115738138A (en) * | 2022-11-08 | 2023-03-07 | 应急管理部四川消防研究所 | Smoke-eliminating foam generating and spraying integrated device |
| CN117258452A (en) * | 2023-11-05 | 2023-12-22 | 东北石油大学 | A device that is used for haze subassembly and uses it on city high-rise building |
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| CN113509662A (en) * | 2021-04-27 | 2021-10-19 | 南京工业大学 | Clean gas fluorine-free foam fire extinguishing device and fire extinguishing method thereof |
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| CN115738138A (en) * | 2022-11-08 | 2023-03-07 | 应急管理部四川消防研究所 | Smoke-eliminating foam generating and spraying integrated device |
| CN115738138B (en) * | 2022-11-08 | 2024-04-02 | 应急管理部四川消防研究所 | Smoke-eliminating foam generating and spraying integrated device |
| CN117258452A (en) * | 2023-11-05 | 2023-12-22 | 东北石油大学 | A device that is used for haze subassembly and uses it on city high-rise building |
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