CN203829963U - Mineral porous spiral type foam generation device - Google Patents
Mineral porous spiral type foam generation device Download PDFInfo
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- CN203829963U CN203829963U CN201420072367.XU CN201420072367U CN203829963U CN 203829963 U CN203829963 U CN 203829963U CN 201420072367 U CN201420072367 U CN 201420072367U CN 203829963 U CN203829963 U CN 203829963U
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- 239000006260 foam Substances 0.000 title claims abstract description 66
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 4
- 239000011707 mineral Substances 0.000 title abstract 4
- 238000005187 foaming Methods 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000005065 mining Methods 0.000 claims description 16
- 238000005213 imbibition Methods 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000002156 mixing Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000012071 phase Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000000428 dust Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
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- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000002985 organ of corti Anatomy 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- 230000001052 transient effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Nozzles (AREA)
Abstract
The utility model discloses a mineral porous spiral type foam generation device. The mineral porous spiral type foam generation device comprises an air pressing connector (1), a nozzle body (2), a gas-liquid mixing chamber (5), a porous spiral type foaming device (6), a foaming barrel (7) and a foam outlet connector (10), wherein at least one outlet nozzle is arranged at the rear end of the nozzle body; a nozzle cavity in the nozzle body is in a circular platform retracting shape; the air pressing connector is connected with the nozzle body; the nozzle body is mounted at the inner side of the front end of the gas-liquid mixing chamber; the porous spiral type foaming device is mounted in the foaming barrel. With the adoption of the mineral porous spiral type foam generation device, the low-resistance and efficient mixing of a gas phase and a liquid phase can be realized; a mesh high-multiple foaming and spiral low-resistance and efficient heat and mass transfer coupling mechanism is used for foaming so that the foaming performance of the device is greatly improved; the air-foam ratio of the generated foams is low, the foaming amount is great and the foaming rate is high; the resistance loss in a mixing and foaming process is reduced and the driving pressure of the device is improved; easily-damaged movement parts in a turbulent flow foaming device are eliminated and the foaming reliability of the device is improved.
Description
Technical field
The utility model relates to a kind of foam-making apparatus, and specifically the spiral foam-making apparatus of a kind of mining porous, belongs to foam-making apparatus field.
Background technology
Foam dust suppression is the important dust-settling technology means in high concentration Chan Chen district, colliery, research both at home and abroad shows, foam is in to the processing procedure of dust, there is the incomparable adhesion of water smoke good, area coverage is large, the advantage that wetting speed is fast, this technology Yi U.S., Britain, the former Soviet Union, the mining areas such as China are applied, but in foam dust suppression process, because foam maker structural design is unreasonable, exist foaming process resistance large, foaming efficiency is low, the defects such as product bubble ability is weak, make its cost sharply increase, seriously restricted the large-scale promotion application of this technology.
At present, coal mine downhole foam depositing dust foam device used mainly contains net formula and two kinds of structures of disturbed flow type.Wherein, the foaming of net formula refers to expanding foam solution is sprayed to wire side, form liquid film, by air blast (fan), the foam solution on wire side is bubbled, if expanding foam solution is uniformly dispersed at wire side, foam conversion ratio can reach 95%, and coefficient of foaming can reach more than 100 times, but in the specific implementation, be difficult to guarantee that expanding foam solution is dispersed on wire side; Meanwhile, because the foam air content generating is too high, foam be subject to distinguished and admirable affect yielding, the non-constant of foam stability; And net formula frothing foam outlet pressure is very low, foam delivery is limited in one's ability, especially, in carrying out the high resistant transmitting procedure of foam, is prone to the problem being short of power.
Disturbed flow type foaming refers to by flow-disturbing parts, change Liquid Flow path, extend the time of contact of gas-liquid, expand gas-liquid contact area, increase the chance of gas-liquid mixed, collision, extruding, improve gas dissolution rate, make the foam of its generation finer, evenly fine and close, flow-disturbing parts mainly contain spiral and two kinds of structures of filling medium formula.As: disclosed United States Patent (USP) on February 20th, 1996 " Air/liquid static foam generator " (application number: US8/2509814, publication number: US054926556), it adopts and is arranged on the left and right spiral organ replacing in cylinder and carries out water conservancy diversion, reduced largely the eddy current loss of foaming link, promoted foaming effect, but its helical structure is free body, but not continuous member, probably there is new eddy current group in foam, energy loss is difficult to determine in left-and-right spiral transient process, disclosed Chinese patent on November 23 " gas-liquid proportioning mixed foam maker of compressed gas foam fire-fighting system " (application number: 201110186008.8 in 2011, publication number: 102247673A), it is by setting up mixed foaming chamber, and at the indoor filling spheric granules of mixed foaming, make gas-liquid flow after each particle, by " Karman vortex street " effect, produce whirlpool, kinetic energy is converted to can in foam, increased coefficient of foaming, but it is strict that this foaming mode requires spheric granules, runner is narrow and small, overall structure reliability is poor, need to regularly replace, dismounting, keep in repair also more difficult, be not suitable for the adverse circumstances such as down-hole water quality inferiority.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of mining porous spiral foam-making apparatus, not only can carry out the foaming of high multiple, high one-tenth bubble rate; And foaming process drag losses is little, foam jet great efforts, the foam of generation is more stable.
To achieve these goals, the spiral foam-making apparatus of this mining porous comprises pressure wind joint, nozzle body, gas-liquid mixed chamber, the spiral bubbler of porous, foaming cylindrical shell and foam outlet joint; The front end outer of described nozzle body is provided with deck, and rear end is provided with at least one outlet nozzle; It is contraction-like that nozzle chambers in nozzle body is round platform; Described pressure wind joint is connected with the front end of nozzle body; Described nozzle body is arranged on front end inner side, gas-liquid mixed chamber; On the anterior sidewall of described gas-liquid mixed chamber, have imbibition chamber; Place, described imbibition chamber is provided with liquid inlet joint; The rear end of gas-liquid mixed chamber is connected with the front end of foaming cylindrical shell, and the rear end of foaming cylindrical shell is connected with foam outlet joint; The spiral bubbler of described porous is arranged in foaming cylindrical shell.
Preferably, described spiral bubbler comprises central shaft and is arranged on the helical blade in central shaft, has a plurality of circular holes on described helical blade.
Preferably, the diameter of described central shaft is no more than 1/10 of helical blade outside diameter, or central shaft is hollow-core construction.On helical blade, the aperture of circular hole is 3～5mm, helical blade pitch 10mm～15mm.
Preferably, front portion and the trunnion in the indoor chamber of described gas-liquid mixed are cylindrical cavity, and rear portion is diffused cavity.
Preferably, described nozzle body rear end is provided with a plurality of contraction-like outlet nozzles that are, and a plurality of outlet nozzles are centrosymmetric on the jet expansion section of nozzle body.Wherein, best when the quantity of outlet nozzle is 5～7.By jet nozzle being made as to multiinjector shape, can obviously reduce course of injection drag losses, the interaction between strengthening injection stream, improve the disturbance rejection of device, make mixing more stable, also changed conventional single injector jet velocity high, the problem that two-phase mixing intensity is low.
Preferably, the end of described porous spiral bubbler is provided with external screw thread; The inwall of described foam outlet joint is provided with L-type fixed pedestal, and on pedestal, cover has fixed bar, and the center of fixed bar offers internal thread circular hole; Porous spiral bubbler is threaded with fixed bar.
Preferably, the front end of described gas-liquid mixed chamber is provided with internal thread, and nozzle body outside is provided with external screw thread, and gas-liquid mixed chamber is threaded with nozzle body; The rear end of gas-liquid mixed chamber is provided with external screw thread, and foaming barrel front end is provided with internal thread, and gas-liquid mixed chamber is connected with foaming cylinder screw; Between described gas-liquid mixed chamber and nozzle body and foaming cylindrical shell, be respectively equipped with seal washer.
Compared with prior art, the spiral foam-making apparatus of porous in the utility model, adopt the high multiple foaming of porous to foam with spiral high-efficiency low-resistance heat and mass coupling mechanism, first pass through helical structure, one dimension foam is flowed and is converted to Three-dimensional Flow, weakened the axial shearing stress of foam, strengthened radially and circumferential shearing stress, increased the chance of gas-liquid mixed, collision, extruding, expanded the effect of foam Heat and mass transfer between phases, the mass-energy conversion of gas-liquid two-phase can complete in the short time at the utmost point, has improved gas-liquid mixed intensity; Simultaneously, by the intensive mesh on helical blade, can make expanding foam solution fully foaming under the effect of high pressure, high velocity air, by the low-resistance flow-disturbing of multiple tracks helical structure, mesh thickness of liquid film increases, the formation of bubble is smooth, coalescence between bubble weakens, and through the stack foaming of multiple tracks stratum reticulare, foaming process is more abundant, the torsion of spiral flow-disturbing is machine-processed in addition, can make toughness and the elasticity of foam obviously strengthen, half foam life period can improve several times, becomes bubble rate and coefficient of foaming significantly to promote; The low resistive outlet pressure that also significantly improves device of helical structure, the driving force of device is significantly strengthened, the foam jet great efforts that produce through the utility model device, foam is evenly fine and smooth, can meet the requirement of foam engineering to high pressure, high resistant dispensing, the foam of high-quality has improved the result of use of this technology significantly; In addition the rapid wear moving component that device has also been forgone in disturbed flow type foam device, simple in structure, dismounting, easy to maintenance, has improved the reliability of equipment, broken through foam-making apparatus when the severe operating environment in reply down-hole, the bottleneck that foaming effect is poor, reliability is not enough.
This contrive equipment is not only applicable to down-hole foam field of engineering technology, and the field of engineering technology such as fire-fighting fire extinguishing of carrying out efficient foaming at needs have extremely important use equally.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of nozzle body in the utility model;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the structural representation of porous spiral bubbler in the utility model;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the structural representation of fixed bar in the utility model;
Fig. 7 is the right view of Fig. 6.
In figure: 1, air intake joint, 2, nozzle body, 2-1, jet expansion section, 2-2, outlet nozzle, 2-3, deck, 3, seal washer, 4, liquid inlet joint, 5, gas-liquid mixed chamber, 6, porous spiral bubbler, 6-1, helical blade, 6-2, central shaft, 6-3, circular hole, 7, foaming cylindrical shell, 8, pedestal, 9, fixed bar, 9-1, fixing circular hole, 9-2, internal thread circular hole, 10, foam outlet joint, A, nozzle chambers, B, low-pressure cavity, C, trunnion chamber, D, diffusion chamber, E, imbibition chamber.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the spiral foam-making apparatus of a kind of mining porous of the utility model, comprises and presses wind joint 1, nozzle body 2, gas-liquid mixed chamber 5, the spiral bubbler 6 of porous, foaming cylindrical shell 7 and foam outlet joint 10; The front end outer of described nozzle body 2 is provided with deck 2-3, and rear end is provided with at least one outlet nozzle 2-2; It is contraction-like that nozzle chambers A in nozzle body 2 is round platform; Described pressure wind joint 1 is connected with the front end of nozzle body 2; Described nozzle body 2 is arranged on 5 front end inner sides, gas-liquid mixed chamber; On the anterior sidewall of described gas-liquid mixed chamber 5, have imbibition chamber E; E place, described imbibition chamber is provided with liquid inlet joint 4; The rear end of gas-liquid mixed chamber 5 is connected with the front end of foaming cylindrical shell 7, and the rear end of foaming cylindrical shell 7 is connected with foam outlet joint 10; The spiral bubbler 6 of described porous is arranged in foaming cylindrical shell 7.
During use, air line can be connected with pressing wind joint 1, expanding foam solution pipeline is connected with liquid inlet joint 4, because nozzle body 2 is interior, be that round platform is contraction-like, wind speed will increase gradually, finally by nozzle body 2 ejection at a high speed, form turbulent jet, under the effect of turbulent jet boundary effect, surrounding air is entrainmented in a large number, near nozzle body 2, form low-pressure cavity B, make expanding foam solution by imbibition chamber E, to enter low-pressure cavity B swimmingly, press wind in the C of trunnion chamber, to complete first mixing with expanding foam solution, conduct heat fast, mass transfer, because gas velocity is higher, in gas-liquid mixed chamber 5, the first foam void fraction forming is relatively high, how in the form of a ring, in diffusion chamber D, fluid velocity reduces gradually, pressure recovers gradually, and reach maximum static pressure in exit.Wherein, front portion and trunnion when the indoor chamber of gas-liquid mixed are all made as cylindrical cavity, rear portion is made as diffused cavity, be to form low-pressure cavity B between anterior cylindrical cavity and nozzle body 2, the cylindrical cavity of trunnion is trunnion chamber C, diffused cavity is diffusion chamber D, and this kind of structure is more suitable for the first mixing of gas-liquid.
The first ring-type foam stream producing that mixes, enter afterwards in foaming cylindrical shell 7, under 6 effects of porous spiral bubbler, carry out high-intensity secondary mixed foaming, annular flow is under helical blade 6-1 effect on the one hand, there is multi tension, shearing, stirring action, significantly improve gas-liquid contact area, extended gas-liquid contact time, promoted foaming effect; On the other hand, the intensive mesh being formed by the circular hole 6-3 on helical blade 6-1 can make expanding foam solution fully foaming under the effect of air-flow, has that wire side foaming bubble production volume is large, coefficient of foaming is high, become the high feature of bubble rate, and the foam of generation is fine, evenly fine and close.This foaming process drag losses is little, foam jet great efforts, and the foam of generation is more stable, and the foam of high-quality has significantly improved the result of use of this technology.Wherein, when the cylindrical cavity of imbibition chamber E for tilting, when liquid inlet joint 4 along inclined direction enters gas-liquid mixed chamber 5, can further reduce in gas-liquid mixed process, that by central collision, is caused follows spray loss, more easily carries out mass-energy conversion between gas-liquid, mutually mixes and also more easily carries out.
As shown in Figure 4 and Figure 5, described spiral bubbler 6 comprises central shaft 6-2 and is arranged on the helical blade 6-1 on central shaft 6-2, has a plurality of circular hole 6-3 on helical blade 6-1.Wherein, the aperture of the upper circular hole 6-3 of helical blade 6-1 is 3～5mm, and circular hole number is can arrange and be advisable at most on area of section, and helical blade 6-1 pitch is 10mm～15mm.For avoiding central shaft 6-2 to cross the thick foam maker interior flow field that affects, can make the diameter of central shaft 6-2 be no more than 1/10 of helical blade 6-1 outside diameter, or adopt the central shaft 6-2 of hollow-core construction.
As shown in Figures 2 and 3, the rear end of described nozzle body 2 is provided with a plurality of contraction-like outlet nozzle 2-2 that are, and a plurality of outlet nozzle 2-2 are centrosymmetric on the jet expansion section 2-1 of nozzle body 2, is about to nozzle body 2 and is set to multiinjector structure; Multiinjector structure can overcome the shortcoming that central speed is high, boundary speed is low that single injector jet exists, and has strengthened jet internal mix dynamics, makes jet velocity and pressure oscillation amplitude less, and jet sprays more stable, and power is stronger.The quantity of outlet nozzle 2-2 is too much or very fewly all jet is had to impact, and when quantity is 5～7, effect is best.
As shown in Fig. 1, Fig. 6 and Fig. 7, can go out to arrange external screw thread at the end of porous spiral bubbler 6; The inwall of foam outlet joint 10 is provided with L-type fixed pedestal 8, and on pedestal 8, cover has fixed bar 9, the center of fixed bar 9 to offer internal thread circular hole 9-2, is provided with symmetrical circular hole 9-1 near fixed bar 9 up-and-down boundaries; In the time of fixedly, first porous spiral bubbler 6 end external screw threads are connected on internal thread circular hole 9-2, can be by regulating reach to change the position of porous spiral bubbler 6 in foaming cylindrical shell 7, by two symmetrical circular hole 9-1, fixed bar 9 is set on L-type fixed pedestal 8 again, porous spiral bubbler 6 can not only be arranged on like this in foaming cylindrical shell 7, can also prevent that porous spiral bubbler 6 from non-directionals occurring and move, device dismounting, safeguard more convenient.
Preferably, the front end of described gas-liquid mixed chamber 5 is provided with internal thread, and nozzle body 2 outsides are provided with external screw thread, and gas-liquid mixed chamber 5 is threaded with nozzle body 2; The rear end of gas-liquid mixed chamber 5 is provided with external screw thread, and foaming cylindrical shell 7 front ends are provided with internal thread, and gas-liquid mixed chamber 5 is threaded with foaming cylindrical shell 7; Between described gas-liquid mixed chamber 5 and nozzle body 2 and foaming cylindrical shell 7, be respectively equipped with seal washer 3.The mode that employing is threaded connects, easy installing/dismounting, and seal washer 3 makes to connect tightr, avoids occurring occurring because of gap gas leakage or the situation of hindering gas-liquid mixed.
In addition, the use of the spiral foam-making apparatus of the utility model porous is not only confined under coal mine, and the field of engineering technology such as fire-fighting fire extinguishing of carrying out efficient foaming at needs have extremely important use equally.
Claims (10)
1. the spiral foam-making apparatus of mining porous, comprises and presses wind joint (1), nozzle body (2), gas-liquid mixed chamber (5), the spiral bubbler of porous (6), foaming cylindrical shell (7) and foam outlet joint (10); It is characterized in that, the front end outer of described nozzle body (2) is provided with deck (2-3), and rear end is provided with at least one outlet nozzle (2-2); It is contraction-like that nozzle chambers (A) in nozzle body (2) is round platform; Described pressure wind joint (1) is connected with the front end of nozzle body (2); Described nozzle body (2) is arranged on front end inner side, gas-liquid mixed chamber (5); On the anterior sidewall of described gas-liquid mixed chamber (5), have imbibition chamber (E); Liquid inlet joint (4) is located to be provided with in described imbibition chamber (E); The rear end of gas-liquid mixed chamber (5) is connected with the front end of foaming cylindrical shell (7), and the rear end of foaming cylindrical shell (7) is connected with foam outlet joint (10); The spiral bubbler of described porous (6) is arranged in foaming cylindrical shell (7).
2. the spiral foam-making apparatus of a kind of mining porous according to claim 1, it is characterized in that, described spiral bubbler (6) comprises central shaft (6-2) and is arranged on the helical blade (6-1) in central shaft (6-2), has a plurality of circular holes (6-3) on described helical blade (6-1).
3. the spiral foam-making apparatus of a kind of mining porous according to claim 2, is characterized in that, the diameter of described central shaft (6-2) is no more than 1/10 of helical blade (6-1) outside diameter, or central shaft (6-2) is hollow-core construction.
4. according to the spiral foam-making apparatus of a kind of mining porous described in claim 2 or 3, it is characterized in that, the aperture of the upper circular hole (6-3) of described helical blade (6-1) is 3～5mm, helical blade (6-1) pitch 10mm～15mm.
5. according to the spiral foam-making apparatus of a kind of mining porous described in claim 1,2 or 3, it is characterized in that, front portion and the trunnion of described gas-liquid mixed chamber (5) inner chamber are cylindrical cavity, and rear portion is diffused cavity.
6. according to the spiral foam-making apparatus of a kind of mining porous described in claim 1,2 or 3, it is characterized in that, described nozzle body (2) rear end is provided with a plurality of contraction-like outlet nozzles (2-2) that are, and a plurality of outlet nozzles (2-2) are centrosymmetric on the jet expansion section (2-1) of nozzle body (2).
7. the spiral foam-making apparatus of a kind of mining porous according to claim 6, is characterized in that, the quantity of described outlet nozzle (2-2) is 5～7.
8. the spiral foam-making apparatus of a kind of mining porous according to claim 5, it is characterized in that, described nozzle body (2) rear end is provided with a plurality of contraction-like outlet nozzles (2-2) that are, and a plurality of outlet nozzles (2-2) are centrosymmetric on the jet expansion section (2-1) of nozzle body (2).
9. the spiral foam-making apparatus of a kind of mining porous according to claim 8, is characterized in that, the end of described porous spiral bubbler (6) is provided with external screw thread; The inwall of described foam outlet joint (10) is provided with L-type fixed pedestal (8), and the upper cover of pedestal (8) has fixed bar (9), and the center of fixed bar (9) offers internal thread circular hole (9-2); Porous spiral bubbler (6) is threaded with fixed bar (9).
10. the spiral foam-making apparatus of a kind of mining porous according to claim 9, it is characterized in that, the front end of described gas-liquid mixed chamber (5) is provided with internal thread, and nozzle body (2) outside is provided with external screw thread, and gas-liquid mixed chamber (5) are threaded with nozzle body (2); The rear end of gas-liquid mixed chamber (5) is provided with external screw thread, and foaming cylindrical shell (7) front end is provided with internal thread, and gas-liquid mixed chamber (5) are threaded with foaming cylindrical shell (7); Between described gas-liquid mixed chamber (5) and nozzle body (2) and foaming cylindrical shell (7), be respectively equipped with seal washer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072367.XU CN203829963U (en) | 2014-02-19 | 2014-02-19 | Mineral porous spiral type foam generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072367.XU CN203829963U (en) | 2014-02-19 | 2014-02-19 | Mineral porous spiral type foam generation device |
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| Publication Number | Publication Date |
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| CN203829963U true CN203829963U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420072367.XU Expired - Lifetime CN203829963U (en) | 2014-02-19 | 2014-02-19 | Mineral porous spiral type foam generation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861511A (en) * | 2014-02-19 | 2014-06-18 | 中国矿业大学 | Mining porous spiral-type foam generating device |
| CN108843372A (en) * | 2018-06-01 | 2018-11-20 | 中国矿业大学 | A kind of adaptive foam dedusting system of fully mechanized workface |
| CN110355027A (en) * | 2019-08-17 | 2019-10-22 | 王浩宇 | A kind of steel pipe's production processing rotary spraying equipment and its spraying method |
| CN112386849A (en) * | 2020-11-10 | 2021-02-23 | 温州画筠信息技术有限公司 | Fireproof automatic spraying system with temperature adjustable |
| CN113134185A (en) * | 2020-01-20 | 2021-07-20 | 南京南瑞继保电气有限公司 | Foam generator reaches compressed air foam extinguishing device who contains it |
-
2014
- 2014-02-19 CN CN201420072367.XU patent/CN203829963U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861511A (en) * | 2014-02-19 | 2014-06-18 | 中国矿业大学 | Mining porous spiral-type foam generating device |
| CN103861511B (en) * | 2014-02-19 | 2015-09-02 | 中国矿业大学 | The spiral foam-making apparatus of a kind of mining porous |
| CN108843372A (en) * | 2018-06-01 | 2018-11-20 | 中国矿业大学 | A kind of adaptive foam dedusting system of fully mechanized workface |
| CN108843372B (en) * | 2018-06-01 | 2019-11-19 | 中国矿业大学 | A kind of adaptive foam dedusting system of fully mechanized workface |
| CN110355027A (en) * | 2019-08-17 | 2019-10-22 | 王浩宇 | A kind of steel pipe's production processing rotary spraying equipment and its spraying method |
| CN113134185A (en) * | 2020-01-20 | 2021-07-20 | 南京南瑞继保电气有限公司 | Foam generator reaches compressed air foam extinguishing device who contains it |
| CN112386849A (en) * | 2020-11-10 | 2021-02-23 | 温州画筠信息技术有限公司 | Fireproof automatic spraying system with temperature adjustable |
| CN112386849B (en) * | 2020-11-10 | 2022-02-25 | 广东腾安机电安装工程有限公司 | Fireproof automatic spraying system with temperature adjustable |
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