CN108425679A - A kind of shield machine foam jet device - Google Patents
A kind of shield machine foam jet device Download PDFInfo
- Publication number
- CN108425679A CN108425679A CN201810241314.9A CN201810241314A CN108425679A CN 108425679 A CN108425679 A CN 108425679A CN 201810241314 A CN201810241314 A CN 201810241314A CN 108425679 A CN108425679 A CN 108425679A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- foam
- injection
- inner sleeve
- shield machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006260 foam Substances 0.000 title claims abstract description 91
- 238000002347 injection Methods 0.000 claims abstract description 62
- 239000007924 injection Substances 0.000 claims abstract description 62
- 230000003139 buffering effect Effects 0.000 claims abstract description 32
- 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 abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008595 infiltration Effects 0.000 abstract description 7
- 238000001764 infiltration Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0678—Adding additives, e.g. chemical compositions, to the slurry or the cuttings
- E21D9/0685—Foaming agents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nozzles (AREA)
Abstract
The present invention provides a kind of shield machine foam jet devices, including nozzle housing and nozzle inner sleeve；Nozzle housing is hollow cylinder；Nozzle inner sleeve includes the storage foam chamber of cylindrical inner sleeve pedestal, hollow cylinder, sprays the buffering ring of through-hole column, circular ring shape；Storage foam chamber rear end with inner sleeve pedestal is concentric is fixedly connected, storage foam chamber front end with injection through-hole column rear end is concentric is fixedly connected, the front end of injection through-hole column with buffering ring rear end is concentric is fixedly connected, buffering ring front end is equipped with fueling injection grate.A kind of shield machine foam jet device of the present invention, with the use of the nozzle housing and nozzle inner sleeve of coaxial nested designs, pass through the effect for storing foam chamber, spraying through-hole column, buffering ring and fueling injection grate, it may be implemented to effectively reduce foam and generate vortex in nozzle, alleviate external dregs to block the infiltration of nozzle, while the quick integral replacing to plug nozzle may be implemented.
Description
Technical field
The invention belongs to shield machine technical fields, more particularly, to a kind of shield machine foam jet device.
Background technology
Earth pressure balance shield construction method is widely used in the underground engineering fields such as city piping lane and rail traffic, feature
Be by construct top environment influenced it is small, construction safety efficiently and it is small etc. to ground perturbation.Shield cutter is in balancing earth-pressure shielding machine
" mud cake " can be easy to cause in tunneling process because soil property is uneven and glues knife, cutter head torque variation increase, shield tunneling face soil pressure not
Stablize, screw conveyor casting effect is undesirable and synchronous grouting it is uneven situations such as.Under prior art conditions, in order to
These problems are prevented, usually foam are generated using foam generating system in the construction process, and if by being arranged on cutterhead
Dry foam nozzle is injected into excavation face, and foam and the soil body excavated reach improvement soil body modeling by the stirring of cutterhead and Tu Cang
The purpose of fluidity.But actual in use, since cutterhead forward position construction environment is severe, foaming system loine pressure is uneven in addition
It is even, the obstruction of foam jet is often caused, it is high that there is spray nozzle clogging frequencies, and scavenger duration and replacement installation operation are multiple
Miscellaneous problem.
Invention content
In view of this, the present invention is directed to propose a kind of shield machine foam jet device, is used cooperatively coaxial nested designs
Nozzle housing and nozzle inner sleeve, pass through store foam chamber, spray through-hole column, buffering ring and fueling injection grate effect, Ke Yishi
It now effectively reduces foam and generates vortex in nozzle, alleviate external dregs and the infiltration of nozzle is blocked, while may be implemented to stifled
Fill in the quick integral replacing of nozzle.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of shield machine foam jet device, including nozzle housing and nozzle inner sleeve；Nozzle housing is hollow cylinder；
Nozzle inner sleeve includes the storage foam chamber of cylindrical inner sleeve pedestal, hollow cylinder, sprays the buffering of through-hole column, circular ring shape
Ring；Storage foam chamber rear end with inner sleeve pedestal is concentric is fixedly connected, store foam chamber front end and to spray through-hole column rear end coaxial
The heart is fixedly connected, and sprays the front end of through-hole column and buffering ring rear end is concentric is fixedly connected, buffering ring front end is equipped with fueling injection grate；
It stores foam chamber outer wall and is equipped with foam injection hole, housing injection hole corresponding with foam injection hole site is arranged with outside nozzle；Spray
Concentric be nested in nozzle of mouth housing puts on, and nozzle housing bottom end is fixedly connected with inner sleeve pedestal using screw.
In the practical application of the present invention, the foam that foam generating system generates first passes sequentially through housing injection hole and bubble
Foam injection hole is injected into storage foam chamber, and then into row buffering, then foam is ejected into buffering ring out of injection through-hole column
It is sprayed via fueling injection grate.Storage foam chamber increases nozzle back space, plays the role of foam buffering and reduces vortex；It is slow
The space that ring defines a buffering with fueling injection grate is rushed, which can not only alleviate the infiltration of external dregs, to bubble
The uniformity of foam injection also functions to good effect.
When foam jet blocks, staff can carry nozzle inner sleeve spare part to region is replaced, and replace the spray of blocking
Mouth inner sleeve is placed and is set in new nozzle in nozzle housing, is realized quick-replaceable nozzle, is effectively increased production efficiency,
And greatly reduce the residence time of staff in the presence of a harsh environment.
Further, inner sleeve pedestal center location is equipped with hexagonal socket head plug.
Blocking cleaning can be carried out to nozzle inner sleeve by opening hexagonal socket head plug.
Further, it sprays and is equipped with rubber pad between through-hole column and buffering ring, cross crotch is opened in the middle part of rubber pad.
Cross crotch is opened in the middle part of rubber pad, fitting of the rubber pad to injection through-hole column is realized, plays the role of sealing.
Further, nozzle housing bottom end is detachably connected with inner sleeve pedestal by hexagon socket cap head screw.
It is fixed using hexagon socket cap head screw, it may be convenient to carry out the dismounting of nozzle housing and inner sleeve pedestal.
Further, fueling injection grate is fixed with buffering ring, rubber pad and injection through-hole column successively by hex bolts.
Further, it stores and is equipped with sealing ring between foam chamber outer wall and nozzle outer casing inner wall.
Further, it sprays and is equipped with sealing ring between through-hole column outer wall and nozzle outer casing inner wall.
Further, sealing ring is equipped between buffering ring outer wall and nozzle outer casing inner wall.
The setting of three seals circle between nozzle housing and nozzle inner sleeve effectively prevents infiltration and the nozzle of external dregs
Interior foam is excessive.
Further, there are two foam injection hole is set, housing injection hole is corresponding with any foam injection hole site.
The design of two foam injection holes may be implemented when replacing nozzle inner sleeve, housing injection hole and foam injection hole
Rapid alignment.
Further, hex bolts is fixed across rubber pad edge part.
Rubber pad edge part is fixed, the excessive of foam is effectively reduced.
Compared with the existing technology, a kind of shield machine foam jet device of the present invention, has the advantage that：
A kind of shield machine foam jet device of the present invention, with the use of in the nozzle housing and nozzle of coaxial nested designs
Set may be implemented to effectively reduce foam and sprayed by the effect for storing foam chamber, spraying through-hole column, buffering ring and fueling injection grate
Vortex is generated in mouth, alleviates external dregs and the infiltration of nozzle is blocked, while may be implemented to the quick entirety of plug nozzle more
It changes.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.
In the accompanying drawings：
Fig. 1 is a kind of shield machine foam jet device first structure schematic cross-sectional view of the embodiment of the present invention；
Fig. 2 is a kind of the second schematic structural cross-sectional view of shield machine foam jet device of the embodiment of the present invention.
Reference sign：
1- nozzle housings；2- nozzle inner sleeves；21- inner sleeve pedestals；22- stores foam chamber；23- sprays through-hole column；24- is buffered
Ring；25- foam injection holes；3- rubber pads；4- fueling injection grates；5- hexagonal socket head plugs；6- hexagon socket cap head screws；7- hexagonal spiral shells
Bolt；8- sealing rings.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To express or implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, a kind of shield machine foam jet device, including nozzle housing 1 and nozzle inner sleeve 2；Outside nozzle
Set 1 is hollow cylinder；Nozzle inner sleeve 2 includes the inner sleeve pedestal 21 of cylinder, the storage foam chamber 22 of hollow cylinder, injection
The buffering ring 24 of through-hole column 23, circular ring shape；Storage 22 rear end of foam chamber with inner sleeve pedestal 21 is concentric is fixedly connected, storage foam
22 front end of room with injection through-hole column 23 rear end is concentric is fixedly connected, the front end and 24 rear end of buffering ring of injection through-hole column 23 are coaxial
The heart is fixedly connected, and 24 front end of buffering ring is equipped with fueling injection grate 4；It stores 22 outer wall of foam chamber and is equipped with foam injection hole 25, outside nozzle
Set 1 is equipped with housing injection hole corresponding with 25 position of foam injection hole；Nozzle housing 1 is concentric to be nested in nozzle inner sleeve 2, spray
1 bottom end of mouth housing is fixedly connected with inner sleeve pedestal 21 using screw.
In the practical application of the present invention, the foam that foam generating system generates first passes sequentially through housing injection hole and bubble
Foam injection hole 25 is injected into storage foam chamber 22, and then foam is ejected into buffering ring 24 out of injection through-hole column 23 and is delayed
Then punching is sprayed via fueling injection grate 4.Storage foam chamber 22 increases nozzle back space, plays foam buffering and reduces whirlpool
The effect of stream；Buffering ring 24 defines the space of a buffering with fueling injection grate 4, which can not only alleviate external slag
The infiltration of soil, good effect is also functioned to the uniformity of foam jet.
When foam jet blocks, staff can carry 2 spare part of nozzle inner sleeve to region is replaced, and replace the spray of blocking
Mouth inner sleeve 2 is placed in new nozzle inner sleeve 2 to nozzle housing 1, realizes quick-replaceable nozzle, effectively increases production effect
Rate, and greatly reduce the residence time of staff in the presence of a harsh environment.
As shown in Figs. 1-2,21 center location of inner sleeve pedestal is equipped with hexagonal socket head plug 5.
Blocking cleaning can be carried out to nozzle inner sleeve 2 by opening hexagonal socket head plug 5.
As shown in Figs. 1-2, rubber pad 3 is equipped between injection through-hole column 23 and buffering ring 24, cross is opened at 3 middle part of rubber pad
Seam.
Cross crotch is opened at 3 middle part of rubber pad, is realized fitting of the rubber pad 3 to injection through-hole column 23, is played the role of sealing.
As shown in Figs. 1-2,1 bottom end of nozzle housing is detachably connected with inner sleeve pedestal 21 by hexagon socket cap head screw 6.
It is fixed using hexagon socket cap head screw 6, it may be convenient to carry out tearing open for nozzle housing 1 and inner sleeve pedestal 21
It unloads.
As shown in Figs. 1-2, fueling injection grate 4 by hex bolts 7 successively with buffering ring 24, rubber pad 3 and injection through-hole column
23 fix.
As shown in Figs. 1-2, it stores and is equipped with sealing ring 8 between 22 outer wall of foam chamber and 1 inner wall of nozzle housing.
As shown in Figs. 1-2, it is equipped with sealing ring 8 between 23 outer wall of injection through-hole column and 1 inner wall of nozzle housing.
As shown in Figs. 1-2, sealing ring 8 is equipped between 1 inner wall of 24 outer wall of buffering ring and nozzle housing.
The setting of three seals circle 8 between nozzle housing 1 and nozzle inner sleeve 2, effectively prevent external dregs infiltration and
Foam in nozzle is excessive.
As shown in Figs. 1-2, there are two foam injection hole 25 is set, housing injection hole and any 25 position pair of foam injection hole
It answers.
The design of two foam injection holes 25 may be implemented when replacing nozzle inner sleeve 2, and housing injection hole is injected with foam
The rapid alignment in hole 25.
As shown in Figs. 1-2, hex bolts 7 is fixed across 3 edge part of rubber pad.
3 edge part of rubber pad is fixed, the excessive of foam is effectively reduced.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of shield machine foam jet device, it is characterised in that：Including nozzle housing (1) and nozzle inner sleeve (2)；The spray
Mouth housing (1) is hollow cylinder；The nozzle inner sleeve (2) includes that cylindrical inner sleeve pedestal (21), hollow cylinder are deposited
The buffering ring (24) for storing up foam chamber (22), spraying through-hole column (23), circular ring shape；The storage foam chamber (22) rear end with it is described interior
Set pedestal (21) is concentric to be fixedly connected, and the storage foam chamber (22) front end and injection through-hole column (23) rear end are concentric
Be fixedly connected, the front end of the injection through-hole column (23) with the buffering ring (24) rear end is concentric is fixedly connected, the buffering
Ring (24) front end is equipped with fueling injection grate (4)；Storage foam chamber (22) outer wall is equipped with foam injection hole (25), outside the nozzle
It covers (1) and is equipped with housing injection hole corresponding with foam injection hole (25) position；The nozzle housing (1) is concentric to be nested in
On the nozzle inner sleeve (2), nozzle housing (1) bottom end is fixedly connected with the inner sleeve pedestal (21) using screw.
2. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The inner sleeve pedestal (21)
Center location is equipped with hexagonal socket head plug (5).
3. a kind of shield machine foam jet device according to claim 2, it is characterised in that：The injection through-hole column
(23) it is equipped with rubber pad (3) between the buffering ring (24), cross crotch is opened in the middle part of the rubber pad (3).
4. a kind of shield machine foam jet device according to claim 3, it is characterised in that：The nozzle housing (1)
Bottom end is detachably connected with the inner sleeve pedestal (21) by hexagon socket cap head screw (6).
5. a kind of shield machine foam jet device according to claim 4, it is characterised in that：The fueling injection grate (4)
It is fixed with the buffering ring (24), the rubber pad (3) and the injection through-hole column (23) successively by hex bolts (7).
6. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The storage foam chamber
(22) sealing ring (8) is equipped between outer wall and the nozzle housing (1) inner wall.
7. a kind of shield machine foam jet device according to claim 6, it is characterised in that：The injection through-hole column
(23) sealing ring (8) is equipped between outer wall and the nozzle housing (1) inner wall.
8. a kind of shield machine foam jet device according to claim 7, it is characterised in that：The buffering ring (24) is outside
Sealing ring (8) is equipped between wall and the nozzle housing (1) inner wall.
9. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The foam injection hole
(25) there are two setting, the housing injection hole is corresponding with any foam injection hole (25) position.
10. a kind of shield machine foam jet device according to claim 5, it is characterised in that：The hex bolts (7)
It is fixed across the rubber pad (3) edge part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241314.9A CN108425679A (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241314.9A CN108425679A (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425679A true CN108425679A (en) | 2018-08-21 |
Family
ID=63159400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810241314.9A Pending CN108425679A (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075458A (en) * | 2018-12-05 | 2020-04-28 | 黄河科技学院 | Muck improvement injection device for underground shield engineering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298838A (en) * | 2008-06-23 | 2008-11-05 | 沈阳重型机械集团有限责任公司 | Soil pressure balance shield machine back loading type cutter head foam spraying device |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN203214069U (en) * | 2013-05-07 | 2013-09-25 | 中国铁建重工集团有限公司 | Foam injecting device of cutter of shield tunneling machine |
| CN208040388U (en) * | 2018-03-22 | 2018-11-02 | 辽宁三三工业有限公司 | A kind of shield machine foam jet device |
-
2018
- 2018-03-22 CN CN201810241314.9A patent/CN108425679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298838A (en) * | 2008-06-23 | 2008-11-05 | 沈阳重型机械集团有限责任公司 | Soil pressure balance shield machine back loading type cutter head foam spraying device |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN203214069U (en) * | 2013-05-07 | 2013-09-25 | 中国铁建重工集团有限公司 | Foam injecting device of cutter of shield tunneling machine |
| CN208040388U (en) * | 2018-03-22 | 2018-11-02 | 辽宁三三工业有限公司 | A kind of shield machine foam jet device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075458A (en) * | 2018-12-05 | 2020-04-28 | 黄河科技学院 | Muck improvement injection device for underground shield engineering |
| CN111075458B (en) * | 2018-12-05 | 2021-05-28 | 山东冠太新材料科技有限公司 | Muck improvement injection device for underground shield engineering |
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