CN102312454A - Inter-tooth high-pressure water-flushing soil breaking rake head - Google Patents
Inter-tooth high-pressure water-flushing soil breaking rake head Download PDFInfo
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- CN102312454A CN102312454A CN201110196083A CN201110196083A CN102312454A CN 102312454 A CN102312454 A CN 102312454A CN 201110196083 A CN201110196083 A CN 201110196083A CN 201110196083 A CN201110196083 A CN 201110196083A CN 102312454 A CN102312454 A CN 102312454A
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Abstract
The invention relates to an inter-tooth high-pressure water-flushing soil breaking rake head, belonging to the technical field of dredging engineering. The inter-tooth high-pressure water-flushing soil breaking rake head is characterized in that the soil-breaking rake head is provided with rake teeth, a movable guard, a water flushing pipe and water flushing nozzles, wherein the water flushing nozzles are arranged among a row of rake teeth, and the water flushing nozzles are connected with the water flushing pipe. The inter-tooth high-pressure water-flushing soil breaking rake head has the advantages that the structure is simple, the clay adhering probability is reduced, the flow lines of runners in the movable guard are not affected, the times of rake blockage are reduced, the dredging efficiency is improved, the dredging cost is reduced, and the like.
Description
Technical field
The invention belongs to the dredging works technical field, particularly relate to a kind of between cog high-pressure flush drag head that breaks ground.
Background technology
At present, dredge and be meant the means that adopt manual work, waterpower and machinery, and fail the process that other places are gone that moves on to excavations of earthwork under water such as silt soil stones.Along with the development of shipping business and the continuous expansion of port construction scale.Waterpower is dredged with machinery and in navigation channel and port construction, is played a leading role, and then has promoted developing rapidly of all kinds of dredge boats.
Rake is inhaled a kind of as in the dredge boat of ship, in dredging is produced, plays an important role.It is the large-scale dredge boat from boat, stowage formula that is equipped with drag head dredging facility and waterpower mud-sucking device.Drag head is connected with hull through the rake arm, harrows arm and can do the oscilaltion campaign, and certain depth is under water put in its rear end, and drag head is contacted with the dredging work plane of soil layer under water.Through the propulsion plant on the ship, make this dredge boat pull drag head reach under sail, the silt of soil layer is under water harrowed pine and excavation.The swabbing action of dredge pump sucks the amalgam (mud) of the silt that excavates and current through dredging tube roads entering dredge pumps such as rake arm, bend pipes from the suction inlet of drag head, after the dredge pump outlet side is packed in the spoil hopper of dredge boat equipment of itself.
After drag head was transferred to the required degree of depth of dredging, rake teeth contact soil excavated, and muddy water mixes.Dredge pump sucks the earth that excavate and pump into the spoil hopper on the ship through drag head then, and in general, under the situation that defeated mud equipment such as dredge pump allow, the drag head inner chamber hopes that higher vacuum is arranged, to obtain the higher concentration of hydraulic mixture of dredging.Too high when concentration of hydraulic mixture, vacuum surpasses threshold, and defeated mud device interior will produce cavitation, will open the moisturizing door, and clear water is introduced, and reduces concentration, reduces inside and outside differential pressure, prevents cavitation.If vacuum does not still reach desired value, will strengthen the movable guard elevation angle through shrinking hydraulic cylinder, reduce and excavate concentration of hydraulic mixture.Perfect condition is not take place under the prerequisite of cavitation in assurance in other words, makes excavation and slurry conveyed concentration high as far as possible, to obtain the higher productivity ratio of dredging.But practice of construction is often to go out technical problems such as obstruction.
Summary of the invention
The present invention provides a kind of between cog high-pressure flush drag head that breaks ground for solving the technical problem that exists in the known technology.
The purpose of this invention is to provide a kind of simple in structurely, reduce clay and adhere to chance, do not influence movable guard inner flow passage streamline, reduce stifled rake number of times, improve dredging efficiency, the between cog high-pressure flush that reduces characteristics such as the dredging works cost drag head that breaks ground.
Drag head high-pressure flush system is the auxiliary equipment of dredging of drag suction dredger, and its effect is before rake is inhaled ship rake teeth cutting earth, the mixing of loose earth, promotion water and earth.Thereby can improve digging efficiency and the transfer efficiency of drag head under specific soil property operating mode.High-pressure flush unrounded number and position are located at movable guard inside according to drag head concrete structure and purposes.
The between cog high-pressure flush of the present invention drag head that breaks ground for the technical scheme that solves the technical problem that exists in the known technology and take is:
A kind of between cog high-pressure flush drag head that breaks ground, be characterized in: the drag head that breaks ground has rake teeth, movable guard, jet water spout, bath to chew, and the between cog position that is positioned at row's rake teeth is chewed in bath, and bath has been chewed jet water spout and has been connected.
The between cog high-pressure flush of the present invention drag head that breaks ground can also be taked following technical scheme:
The described between cog high-pressure flush drag head that breaks ground, be characterized in: movable guard is equipped with the moisturizing door.
The described between cog high-pressure flush drag head that breaks ground, be characterized in: moisturizing Men Lian is equipped with hydraulic cylinder.
Advantage and good effect that the present invention has are:
The between cog high-pressure flush is broken ground drag head owing to adopted brand-new technology scheme of the present invention, and compared with prior art, characteristics of the present invention: high-pressure flush is chewed the between cog position that is located at a toothrow.Solved and do not hindering moisturizing door riding position and do not influencing under the situation of movable guard inner flow passage streamline, for improving a kind of comparatively reasonably science dredging mode of participating in excavating that digging efficiency is set up by high-pressure flush.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the assembly structure sketch map of rake teeth of the present invention and water injection nozzle;
Fig. 3 is common drag head structural representation.
Among the figure: 1, rake teeth, 2, the water high pressure chest, 3, nozzle, 4, high pressure water pipe, 5, the moisturizing door, 6, movable guard, 7, movable guard, 8, the movable guard hydraulic cylinder, 9, lean on watchman's wooden clapper, 10, high pressure water pipe, 11, suction pipe.
The specific embodiment
For further understanding technology contents of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
A kind of between cog high-pressure flush drag head that breaks ground has rake teeth, movable guard, jet water spout, bath to chew, and the between cog position that is positioned at row's rake teeth is chewed in bath, and bath is chewed and is connected with jet water spout, and movable guard is equipped with the moisturizing door, and moisturizing Men Lian is equipped with hydraulic cylinder.
The concrete structure of present embodiment and the course of work thereof:
The present invention is not hindering moisturizing door installation site and is not influencing under the situation of movable guard runner streamline for solving, for the raising digging efficiency propose a kind of with the drag head high-pressure flush chew be installed in about the high-pressure flush mode in two tooth centre positions.
The related critical piece of this drag head high-pressure flush device comprises compositions such as high-pressure water chamber, rake teeth, high pressure water pipe, high-pressure flush are chewed, moisturizing door, movable guard.
High-pressure flush is chewed the between cog position that is located at a toothrow.Construction period; The water jets under high pressure that the high-pressure flush system penetrates through water injection nozzle is cut into strip along the navigation direction with earth with sea bed, plays the effect that earth is tentatively cut apart; Meanwhile; Rake teeth cutting earth, and under the cooperation of high-pressure flush, water and earth are fully mixed, then mud sucks and drains into spoil hopper by dredge pump.
Claims (3)
1. between cog high-pressure flush drag head that breaks ground, it is characterized in that: the drag head that breaks ground has rake teeth, movable guard, jet water spout, bath to chew, and the between cog position that is positioned at row's rake teeth is chewed in bath, and bath has been chewed jet water spout and has been connected.
2. according to the described between cog high-pressure flush of claim 1 drag head that breaks ground, it is characterized in that: movable guard is equipped with the moisturizing door.
3. according to the described between cog high-pressure flush of claim 2 drag head that breaks ground, it is characterized in that: moisturizing Men Lian is equipped with hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110196083A CN102312454A (en) | 2011-07-14 | 2011-07-14 | Inter-tooth high-pressure water-flushing soil breaking rake head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110196083A CN102312454A (en) | 2011-07-14 | 2011-07-14 | Inter-tooth high-pressure water-flushing soil breaking rake head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102312454A true CN102312454A (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110196083A Pending CN102312454A (en) | 2011-07-14 | 2011-07-14 | Inter-tooth high-pressure water-flushing soil breaking rake head |
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| CN (1) | CN102312454A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193157A (en) * | 2016-08-31 | 2016-12-07 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| CN106555414A (en) * | 2016-11-22 | 2017-04-05 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of device for dredging the closely knit Extra-fine sand of saturation and silt |
| CN111395433A (en) * | 2020-04-20 | 2020-07-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268799A (en) * | 2002-03-18 | 2003-09-25 | Ikeda Kensetsu Kogyo Kk | Dredging method |
| CN2885940Y (en) * | 2006-04-14 | 2007-04-04 | 中交上海航道局有限公司 | Drag head with oil cylinder |
| CN201082964Y (en) * | 2008-02-15 | 2008-07-09 | 上海远舟港湾建设有限公司 | Self-navigating type harrow-twisting dredger |
| CN201162240Y (en) * | 2008-03-03 | 2008-12-10 | 中交上海航道勘察设计研究院有限公司 | Sand-taking device of sand taking equipment under deep water covering layer |
| CN201588238U (en) * | 2009-10-26 | 2010-09-22 | 浙江方圆造船有限公司 | Novel excavating harrow head |
-
2011
- 2011-07-14 CN CN201110196083A patent/CN102312454A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268799A (en) * | 2002-03-18 | 2003-09-25 | Ikeda Kensetsu Kogyo Kk | Dredging method |
| CN2885940Y (en) * | 2006-04-14 | 2007-04-04 | 中交上海航道局有限公司 | Drag head with oil cylinder |
| CN201082964Y (en) * | 2008-02-15 | 2008-07-09 | 上海远舟港湾建设有限公司 | Self-navigating type harrow-twisting dredger |
| CN201162240Y (en) * | 2008-03-03 | 2008-12-10 | 中交上海航道勘察设计研究院有限公司 | Sand-taking device of sand taking equipment under deep water covering layer |
| CN201588238U (en) * | 2009-10-26 | 2010-09-22 | 浙江方圆造船有限公司 | Novel excavating harrow head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193157A (en) * | 2016-08-31 | 2016-12-07 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| CN106193157B (en) * | 2016-08-31 | 2018-08-28 | 中交烟台环保疏浚有限公司 | Trailing suction hopper dredger drag head |
| CN106555414A (en) * | 2016-11-22 | 2017-04-05 | 中交疏浚技术装备国家工程研究中心有限公司 | A kind of device for dredging the closely knit Extra-fine sand of saturation and silt |
| CN111395433A (en) * | 2020-04-20 | 2020-07-10 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
| CN111395433B (en) * | 2020-04-20 | 2022-04-26 | 中交疏浚技术装备国家工程研究中心有限公司 | Novel high-efficient harrow head of integral type |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |